Update changelog for 11.2.30

Fix ynh_restore_everything

.coveragerc

@@ -1,2 +1,2 @@
 [report]
-omit=src/tests/*,src/vendor/*,/usr/lib/moulinette/yunohost/*
+omit=src/tests/*,src/vendor/*,/usr/lib/moulinette/yunohost/*,/usr/lib/python3/dist-packages/yunohost/tests/*,/usr/lib/python3/dist-packages/yunohost/vendor/*

.github/workflows/autoblack.yml

@@ -0,0 +1,30 @@
+name: Check / auto apply Black
+
+on:
+  push:
+    branches: [ "dev" ]
+
+jobs:
+  black:
+    name: Check / auto apply black
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Check files using the black formatter
+        uses: psf/black@stable
+        id: black
+        with:
+          options: "."
+        continue-on-error: true
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          title: "Format Python code with Black"
+          commit-message: ":art: Format Python code with Black"
+          body: |
+            This pull request uses the [psf/black](https://github.com/psf/black) formatter.
+          base: ${{ github.head_ref }} # Creates pull request onto pull request or commit branch
+          branch: actions/black

.github/workflows/codeql.yml

@@ -0,0 +1,42 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "dev" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "dev" ]
+    paths-ignore:
+      - 'src/tests/**'
+  schedule:
+    - cron: '43 12 * * 3'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'python' ]
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        queries: security-extended,security-and-quality
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v2
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/n_updater.sh

@@ -1,78 +0,0 @@
-#!/bin/bash
-
-#=================================================
-# N UPDATING HELPER
-#=================================================
-
-# This script is meant to be run by GitHub Actions.
-# It is derived from the Updater script from the YunoHost-Apps organization.
-# It aims to automate the update of `n`, the Node version management system.
-
-#=================================================
-# FETCHING LATEST RELEASE AND ITS ASSETS
-#=================================================
-
-# Fetching information
-source helpers/nodejs
-current_version="$n_version"
-repo="tj/n"
-# Some jq magic is needed, because the latest upstream release is not always the latest version (e.g. security patches for older versions)
-version=$(curl --silent "https://api.github.com/repos/$repo/releases" | jq -r '.[] | select( .prerelease != true ) | .tag_name' | sort -V | tail -1)
-
-# Later down the script, we assume the version has only digits and dots
-# Sometimes the release name starts with a "v", so let's filter it out.
-if [[ ${version:0:1} == "v" || ${version:0:1} == "V" ]]; then
-    version=${version:1}
-fi
-
-# Setting up the environment variables
-echo "Current version: $current_version"
-echo "Latest release from upstream: $version"
-echo "VERSION=$version" >> $GITHUB_ENV
-# For the time being, let's assume the script will fail
-echo "PROCEED=false" >> $GITHUB_ENV
-
-# Proceed only if the retrieved version is greater than the current one
-if ! dpkg --compare-versions "$current_version" "lt" "$version" ; then
-    echo "::warning ::No new version available"
-    exit 0
-# Proceed only if a PR for this new version does not already exist
-elif git ls-remote -q --exit-code --heads https://github.com/${GITHUB_REPOSITORY:-YunoHost/yunohost}.git ci-auto-update-n-v$version ; then
-    echo "::warning ::A branch already exists for this update"
-    exit 0
-fi
-
-#=================================================
-# UPDATE SOURCE FILES
-#=================================================
-
-asset_url="https://github.com/tj/n/archive/v${version}.tar.gz"
-
-echo "Handling asset at $asset_url"
-
-# Create the temporary directory
-tempdir="$(mktemp -d)"
-
-# Download sources and calculate checksum
-filename=${asset_url##*/}
-curl --silent -4 -L $asset_url -o "$tempdir/$filename"
-checksum=$(sha256sum "$tempdir/$filename" | head -c 64)
-
-# Delete temporary directory
-rm -rf $tempdir
-
-echo "Calculated checksum for n v${version} is $checksum"
-
-#=================================================
-# GENERIC FINALIZATION
-#=================================================
-
-# Replace new version in helper
-sed -i -E "s/^n_version=.*$/n_version=$version/" helpers/nodejs
-
-# Replace checksum in helper
-sed -i -E "s/^n_checksum=.*$/n_checksum=$checksum/" helpers/nodejs
-
-# The Action will proceed only if the PROCEED environment variable is set to true
-echo "PROCEED=true" >> $GITHUB_ENV
-exit 0

.github/workflows/n_updater.yml

@@ -11,36 +11,29 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Fetch the source code
-        uses: actions/checkout@v2
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}
+        uses: actions/checkout@v4
+
       - name: Run the updater script
         id: run_updater
         run: |
-          # Setting up Git user
-          git config --global user.name 'yunohost-bot'
-          git config --global user.email 'yunohost-bot@users.noreply.github.com'
-          # Run the updater script
-          /bin/bash .github/workflows/n_updater.sh
-      - name: Commit changes
-        id: commit
-        if: ${{ env.PROCEED == 'true' }}
-        run: |
-          git commit -am "Upgrade n to v$VERSION"
+          # Download n
+          wget https://raw.githubusercontent.com/tj/n/master/bin/n --output-document=helpers/vendor/n/n
+
+          echo "VERSION=$(sed -n 's/^VERSION=\"\(.*\)\"/\1/p' < helpers/vendor/n/n)" >> $GITHUB_ENV
+
       - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v6
         id: cpr
-        if: ${{ env.PROCEED == 'true' }}
-        uses: peter-evans/create-pull-request@v3
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-          commit-message: Update n to version ${{ env.VERSION }}
+          commit-message: Update n to ${{ env.VERSION }}
           committer: 'yunohost-bot <yunohost-bot@users.noreply.github.com>'
           author: 'yunohost-bot <yunohost-bot@users.noreply.github.com>'
           signoff: false
           base: dev
-          branch: ci-auto-update-n-v${{ env.VERSION }}
+          branch: ci-auto-update-n-${{ env.VERSION }}
           delete-branch: true
-          title: 'Upgrade n to version ${{ env.VERSION }}'
+          title: 'Upgrade n to ${{ env.VERSION }}'
           body: |
-            Upgrade `n` to v${{ env.VERSION }}
+            Upgrade `n` to ${{ env.VERSION }}
           draft: false

.gitignore

@@ -35,3 +35,10 @@ src/locales
 
 # Test
 src/tests/apps
+
+# Tmp/local doc stuff
+doc/bash-completion.sh
+doc/bash_completion.d
+doc/openapi.js
+doc/openapi.json
+doc/swagger

.gitlab-ci.yml

@@ -16,6 +16,9 @@ default:
 code_quality:
   tags:
     - docker
+  rules:
+    - if: $CI_COMMIT_TAG # Only for tags
+
 
 code_quality_html:
   extends: code_quality
@@ -23,6 +26,9 @@ code_quality_html:
     REPORT_FORMAT: html
   artifacts:
     paths: [gl-code-quality-report.html]
+  rules:
+    - if: $CI_COMMIT_TAG # Only for tags
+
 
 # see: https://docs.gitlab.com/ee/ci/yaml/#switch-between-branch-pipelines-and-merge-request-pipelines
 workflow:
@@ -32,12 +38,17 @@ workflow:
     - if: $CI_COMMIT_TAG # For tags
     - if: $CI_COMMIT_REF_NAME == "ci-format-$CI_DEFAULT_BRANCH"  # Ignore black formatting branch created by the CI
       when: never
+    - if: $CI_COMMIT_REF_NAME == "actions/black"  # Ignore black formatting branch created by the CI
+      when: never
     - if: $CI_COMMIT_REF_NAME != $CI_DEFAULT_BRANCH  && $CI_PIPELINE_SOURCE == "push" # If it's not the default branch and if it's a push, then do not trigger a build
       when: never
     - when: always
 
 variables:
-  YNH_BUILD_DIR: "ynh-build"
+  GIT_CLONE_PATH: '$CI_BUILDS_DIR/$CI_COMMIT_SHA/$CI_JOB_ID'
+  YNH_SOURCE: "https://github.com/yunohost"
+  YNH_DEBIAN: "bullseye"
+  YNH_SKIP_DIAGNOSIS_DURING_UPGRADE: "true"
 
 include:
   - template: Code-Quality.gitlab-ci.yml

.gitlab/ci/build.gitlab-ci.yml

@@ -1,22 +1,22 @@
 .build-stage:
   stage: build
-  image: "before-install"
+  image: "build-and-lint"
   variables:
-    YNH_SOURCE: "https://github.com/yunohost"
+    YNH_BUILD_DIR: "$GIT_CLONE_PATH/build"
   before_script:
     - mkdir -p $YNH_BUILD_DIR
-    - DEBIAN_FRONTEND=noninteractive apt update
   artifacts:
     paths:
-      - $YNH_BUILD_DIR/*.deb
+      - ./*.deb
 
 .build_script: &build_script
-  - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" install devscripts --no-install-recommends
   - cd $YNH_BUILD_DIR/$PACKAGE
   - VERSION=$(dpkg-parsechangelog -S Version 2>/dev/null)
-  - VERSION_NIGHTLY="${VERSION}+$(date +%Y%m%d%H%M)"
-  - dch --package "${PACKAGE}" --force-bad-version -v "${VERSION_NIGHTLY}" -D "unstable" --force-distribution "Daily build."
+  - VERSION_TIMESTAMPED="${VERSION}+$(date +%Y%m%d%H%M)"
+  - dch --package "${PACKAGE}" --force-bad-version -v "${VERSION_TIMESTAMPED}" -D "unstable" --force-distribution "CI build."
   - debuild --no-lintian -us -uc
+  - cp $YNH_BUILD_DIR/*.deb ${CI_PROJECT_DIR}/
+  - cd ${CI_PROJECT_DIR}
 
 ########################################
 # BUILD DEB
@@ -31,18 +31,16 @@ build-yunohost:
     - mkdir -p $YNH_BUILD_DIR/$PACKAGE
     - cat archive.tar.gz | tar -xz -C $YNH_BUILD_DIR/$PACKAGE
     - rm archive.tar.gz
-    - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $(pwd)/$YNH_BUILD_DIR/$PACKAGE
+    - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $YNH_BUILD_DIR/$PACKAGE
     - *build_script
 
-
 build-ssowat:
   extends: .build-stage
   variables:
     PACKAGE: "ssowat"
   script:
-    - DEBIAN_DEPENDS=$(cat debian/control | tr "," "\n" | grep -Po "ssowat \([>,=,<]+ .*\)" | grep -Po "[0-9\.]+")
-    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $DEBIAN_DEPENDS $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
-    - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $(pwd)/$YNH_BUILD_DIR/$PACKAGE
+    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $YNH_DEBIAN $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
+    - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $YNH_BUILD_DIR/$PACKAGE
     - *build_script
 
 build-moulinette:
@@ -50,7 +48,6 @@ build-moulinette:
   variables:
     PACKAGE: "moulinette"
   script:
-    - DEBIAN_DEPENDS=$(cat debian/control | tr "," "\n" | grep -Po "moulinette \([>,=,<]+ .*\)" | grep -Po "[0-9\.]+")
-    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $DEBIAN_DEPENDS $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
-    - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $(pwd)/$YNH_BUILD_DIR/$PACKAGE
+    - git clone $YNH_SOURCE/$PACKAGE -b $CI_COMMIT_REF_NAME $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE -b $YNH_DEBIAN $YNH_BUILD_DIR/$PACKAGE --depth 1 || git clone $YNH_SOURCE/$PACKAGE $YNH_BUILD_DIR/$PACKAGE --depth 1
+    - DEBIAN_FRONTEND=noninteractive apt --assume-yes -o Dpkg::Options::="--force-confold" build-dep $YNH_BUILD_DIR/$PACKAGE
     - *build_script

.gitlab/ci/doc.gitlab-ci.yml

@@ -4,24 +4,28 @@
 
 generate-helpers-doc:
   stage: doc
-  image: "before-install"
+  image: "build-and-lint"
   needs: []
   before_script:
-    - apt-get update -y && apt-get install git hub -y
     - git config --global user.email "yunohost@yunohost.org"
     - git config --global user.name "$GITHUB_USER"
   script:
     - cd doc
-    - python3 generate_helper_doc.py
+    - python3 generate_helper_doc.py 2
+    - python3 generate_helper_doc.py 2.1
+    - python3 generate_resource_doc.py > resources.md
     - hub clone https://$GITHUB_TOKEN:x-oauth-basic@github.com/YunoHost/doc.git doc_repo
-    - cp helpers.md doc_repo/pages/06.contribute/10.packaging_apps/11.helpers/packaging_apps_helpers.md
+    - cp helpers.v2.md doc_repo/pages/06.contribute/10.packaging_apps/20.scripts/10.helpers/packaging_app_scripts_helpers.md
+    - cp helpers.v2.1.md doc_repo/pages/06.contribute/10.packaging_apps/20.scripts/12.helpers21/packaging_app_scripts_helpers_v21.md
+    - cp resources.md doc_repo/pages/06.contribute/10.packaging_apps/10.manifest/10.appresources/packaging_app_manifest_resources.md
     - cd doc_repo
     # replace ${CI_COMMIT_REF_NAME} with ${CI_COMMIT_TAG} ?
     - hub checkout -b "${CI_COMMIT_REF_NAME}"
-    - hub commit -am "[CI] Helper for ${CI_COMMIT_REF_NAME}"
-    - hub pull-request -m "[CI] Helper for ${CI_COMMIT_REF_NAME}" -p # GITHUB_USER and GITHUB_TOKEN registered here https://gitlab.com/yunohost/yunohost/-/settings/ci_cd
+    - hub commit -am "[CI] Update app helpers/resources for ${CI_COMMIT_REF_NAME}"
+    - hub pull-request -m "[CI] Update app helpers/resources for ${CI_COMMIT_REF_NAME}" -p # GITHUB_USER and GITHUB_TOKEN registered here https://gitlab.com/yunohost/yunohost/-/settings/ci_cd
   artifacts:
     paths:
       - doc/helpers.md
+      - doc/resources.md
   only:
     - tags

.gitlab/ci/install.gitlab-ci.yml

@@ -14,16 +14,14 @@
 
 upgrade:
   extends: .install-stage
-  image: "after-install"
+  image: "core-tests"
   script:
-    - apt-get update -o Acquire::Retries=3
-    - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ./$YNH_BUILD_DIR/*.deb
+    - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb
 
 
 install-postinstall:
   extends: .install-stage
   image: "before-install"
   script:
-    - apt-get update -o Acquire::Retries=3
-    - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ./$YNH_BUILD_DIR/*.deb
+    - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb
     - yunohost tools postinstall -d domain.tld -u syssa -F 'Syssa Mine' -p the_password --ignore-dyndns --force-diskspace

.gitlab/ci/lint.gitlab-ci.yml

@@ -5,7 +5,7 @@
 
 lint39:
   stage: lint
-  image: "before-install"
+  image: "build-and-lint"
   needs: []
   allow_failure: true
   script:
@@ -13,36 +13,14 @@ lint39:
 
 invalidcode39:
   stage: lint
-  image: "before-install"
+  image: "build-and-lint"
   needs: []
   script:
     - tox -e py39-invalidcode
 
 mypy:
   stage: lint
-  image: "before-install"
+  image: "build-and-lint"
   needs: []
   script:
     - tox -e py39-mypy
-
-black:
-  stage: lint
-  image: "before-install"
-  needs: []
-  before_script:
-    - apt-get update -y && apt-get install git hub -y
-    - git config --global user.email "yunohost@yunohost.org"
-    - git config --global user.name "$GITHUB_USER"
-    - hub clone --branch ${CI_COMMIT_REF_NAME} "https://$GITHUB_TOKEN:x-oauth-basic@github.com/YunoHost/yunohost.git" github_repo
-    - cd github_repo
-  script:
-    # create a local branch that will overwrite distant one
-    - git checkout -b "ci-format-${CI_COMMIT_REF_NAME}" --no-track
-    - tox -e py39-black-run
-    - '[ $(git diff | wc -l) != 0 ] || exit 0'  # stop if there is nothing to commit
-    - git commit -am "[CI] Format code with Black" || true
-    - git push -f origin "ci-format-${CI_COMMIT_REF_NAME}":"ci-format-${CI_COMMIT_REF_NAME}"
-    - hub pull-request -m "[CI] Format code with Black" -b Yunohost:$CI_COMMIT_REF_NAME -p || true # GITHUB_USER and GITHUB_TOKEN registered here https://gitlab.com/yunohost/yunohost/-/settings/ci_cd
-  only:
-    variables:
-      - $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH

.gitlab/ci/test.gitlab-ci.yml

@@ -1,11 +1,9 @@
 .install_debs: &install_debs
-    - apt-get update -o Acquire::Retries=3
-    - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ./$YNH_BUILD_DIR/*.deb
-    - pip3 install -U mock pip pytest pytest-cov pytest-mock pytest-sugar requests-mock tox ansi2html black jinja2
+    - DEBIAN_FRONTEND=noninteractive SUDO_FORCE_REMOVE=yes apt --assume-yes -o Dpkg::Options::="--force-confold" --allow-downgrades install ${CI_PROJECT_DIR}/*.deb
 
 .test-stage:
   stage: test
-  image: "after-install"
+  image: "core-tests"
   variables:
     PYTEST_ADDOPTS: "--color=yes"
   before_script:
@@ -34,11 +32,10 @@ full-tests:
     PYTEST_ADDOPTS: "--color=yes"
   before_script:
     - *install_debs
+    - pip install mock pip pyOpenSSL pytest pytest-cov pytest-mock pytest-sugar requests-mock "packaging<22"
     - yunohost tools postinstall -d domain.tld -u syssa -F 'Syssa Mine' -p the_password --ignore-dyndns --force-diskspace
   script:
-    - python3 -m pytest --cov=yunohost tests/ src/tests/ src/diagnosers/ --junitxml=report.xml
-    - cd tests
-    - bash test_helpers.sh
+    - python3 -m pytest --cov=yunohost tests/ src/tests/ --junitxml=report.xml
   needs:
       - job: build-yunohost
         artifacts: true
@@ -46,6 +43,7 @@ full-tests:
         artifacts: true
       - job: build-moulinette
         artifacts: true
+  coverage: '/TOTAL.*\s+(\d+%)/'
   artifacts:
     reports:
       junit: report.xml
@@ -58,14 +56,17 @@ test-actionmap:
     changes:
       - share/actionsmap.yml
 
-test-helpers:
+test-helpers2:
   extends: .test-stage
   script:
     - cd tests
     - bash test_helpers.sh
-  only:
-    changes:
-      - helpers/*
+
+test-helpers2.1:
+  extends: .test-stage
+  script:
+    - cd tests
+    - bash test_helpers.sh 2.1
 
 test-domains:
   extends: .test-stage

.gitlab/ci/translation.gitlab-ci.yml

@@ -13,10 +13,9 @@ test-i18n-keys:
 
 autofix-translated-strings:
   stage: translation
-  image: "before-install"
+  image: "build-and-lint"
   needs: []
   before_script:
-    - apt-get update -y && apt-get install git hub -y
     - git config --global user.email "yunohost@yunohost.org"
     - git config --global user.name "$GITHUB_USER"
     - hub clone --branch ${CI_COMMIT_REF_NAME} "https://$GITHUB_TOKEN:x-oauth-basic@github.com/YunoHost/yunohost.git" github_repo
@@ -26,7 +25,7 @@ autofix-translated-strings:
     - git checkout -b "ci-autofix-translated-strings-${CI_COMMIT_REF_NAME}" --no-track
     - python3 maintenance/missing_i18n_keys.py --fix
     - python3 maintenance/autofix_locale_format.py
-    - '[ $(git diff | wc -l) != 0 ] || exit 0'  # stop if there is nothing to commit
+    - '[ $(git diff --ignore-blank-lines --ignore-all-space --ignore-space-at-eol --ignore-cr-at-eol | wc -l) != 0 ] || exit 0'  # stop if there is nothing to commit
     - git commit -am "[CI] Reformat / remove stale translated strings" || true
     - git push -f origin "ci-autofix-translated-strings-${CI_COMMIT_REF_NAME}":"ci-remove-stale-translated-strings-${CI_COMMIT_REF_NAME}"
     - hub pull-request -m "[CI] Reformat / remove stale translated strings" -b Yunohost:$CI_COMMIT_REF_NAME -p || true # GITHUB_USER and GITHUB_TOKEN registered here https://gitlab.com/yunohost/yunohost/-/settings/ci_cd

.lgtm.yml

@@ -1,4 +0,0 @@
-extraction:
-  python:
-    python_setup:
-      version: "3"

README.md

@@ -7,10 +7,10 @@
 <div align="center">
     
 ![Version](https://img.shields.io/github/v/tag/yunohost/yunohost?label=version&sort=semver)
-[![Build status](https://shields.io/gitlab/pipeline/yunohost/yunohost/dev)](https://gitlab.com/yunohost/yunohost/-/pipelines)
-![Test coverage](https://img.shields.io/gitlab/coverage/yunohost/yunohost/dev)
-[![Language grade: Python](https://img.shields.io/lgtm/grade/python/g/YunoHost/yunohost.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/YunoHost/yunohost/context:python)
-[![GitHub license](https://img.shields.io/github/license/YunoHost/yunohost)](https://github.com/YunoHost/yunohost/blob/dev/LICENSE)
+[![Pipeline status](https://gitlab.com/yunohost/yunohost/badges/dev/pipeline.svg)](https://gitlab.com/yunohost/yunohost/-/pipelines)
+![Test coverage](https://gitlab.com/yunohost/yunohost/badges/dev/coverage.svg)
+[![Project license](https://img.shields.io/gitlab/license/yunohost/yunohost)](https://github.com/YunoHost/yunohost/blob/dev/LICENSE)
+[![CodeQL](https://github.com/yunohost/yunohost/workflows/CodeQL/badge.svg)](https://github.com/YunoHost/yunohost/security/code-scanning)
 [![Mastodon Follow](https://img.shields.io/mastodon/follow/28084)](https://mastodon.social/@yunohost)
 
 </div>
@@ -19,31 +19,31 @@ YunoHost is an operating system aiming to simplify as much as possible the admin
 
 This repository corresponds to the core code of YunoHost, mainly written in Python and Bash.
 
-- [Project features](https://yunohost.org/#/whatsyunohost)
+- [Project features](https://yunohost.org/whatsyunohost)
 - [Project website](https://yunohost.org)
 - [Install documentation](https://yunohost.org/install)
 - [Issue tracker](https://github.com/YunoHost/issues)
 
-# Screenshots
+## Screenshots
 
 Webadmin ([Yunohost-Admin](https://github.com/YunoHost/yunohost-admin)) | Single sign-on user portal ([SSOwat](https://github.com/YunoHost/ssowat))
 --- | ---
-![](https://raw.githubusercontent.com/YunoHost/doc/master/images/webadmin.png) | ![](https://raw.githubusercontent.com/YunoHost/doc/master/images/user_panel.png)
+![Web admin insterface screenshot](https://raw.githubusercontent.com/YunoHost/doc/master/images/webadmin.png) | ![User portal screenshot](https://raw.githubusercontent.com/YunoHost/doc/master/images/user_panel.png)
 
 
 ## Contributing
 
 - You can learn how to get started with developing on YunoHost by reading [this piece of documentation](https://yunohost.org/dev).
-- Come chat with us on the [dev chatroom](https://yunohost.org/#/chat_rooms) !
-- You can help translate YunoHost on our [translation platform](https://translate.yunohost.org/engage/yunohost/?utm_source=widget)
+- Come chat with us on the [dev chatroom](https://yunohost.org/chat_rooms)!
+- You can help translate YunoHost on our [translation platform](https://translate.yunohost.org/engage/yunohost/?utm_source=widget).
 
 <p align="center">
-<img src="https://translate.yunohost.org/widgets/yunohost/-/core/horizontal-auto.svg" alt="Translation status" />
+<img alt="View of the translation rate for the different languages available in YunoHost" src="https://translate.yunohost.org/widgets/yunohost/-/core/horizontal-auto.svg" alt="Translation status" />
 </p>
 
 ## License
 
-As [other components of YunoHost](https://yunohost.org/#/faq_en), this repository is licensed under GNU AGPL v3.
+As [other components of YunoHost](https://yunohost.org/faq), this repository is licensed under GNU AGPL v3.
 
 ## They support us <3
 
@@ -51,16 +51,16 @@ We are thankful for our sponsors providing us with infrastructure and grants!
 
 <div align="center">
 <p style="margin-left:auto;margin-right:auto;">
-<a style="padding: 5px;" href="https://nlnet.nl"><img src="https://user-images.githubusercontent.com/36127788/198088570-823c40bd-7ac3-44e3-a8ee-e7a9f14b47ac.png" width="150px"/></a>
-<a style="padding: 5px;" href="https://www.ngi.eu"><img src="https://user-images.githubusercontent.com/36127788/198088663-daf587b9-fd09-4c00-aaf2-37c803939c94.png" width="130px"/></a>
-<a style="padding: 5px;" href="https://www.codelutin.com"><img src="https://user-images.githubusercontent.com/36127788/198088737-d37b6674-379c-4be4-9d74-b93b6ad318d1.png" width="100px"/></a>
+<a style="padding: 5px;" href="https://nlnet.nl"><img alt="NLnet Foundation" src="https://user-images.githubusercontent.com/36127788/198088570-823c40bd-7ac3-44e3-a8ee-e7a9f14b47ac.png" width="150px"/></a>
+<a style="padding: 5px;" href="https://www.ngi.eu"><img alt="Next Generation Internet" src="https://user-images.githubusercontent.com/36127788/198088663-daf587b9-fd09-4c00-aaf2-37c803939c94.png" width="130px"/></a>
+<a style="padding: 5px;" href="https://www.codelutin.com"><img alt="Code Lutin" src="https://user-images.githubusercontent.com/36127788/198088737-d37b6674-379c-4be4-9d74-b93b6ad318d1.png" width="100px"/></a>
 </p>
 <p style="margin-left:auto;margin-right:auto;">
-<a style="padding: 5px;" href="https://www.globenet.org"><img src="https://user-images.githubusercontent.com/36127788/198088794-751129ab-737d-4d99-9f35-5e01845dcdfe.png" width="150px"/></a>
-<a style="padding: 5px;" href="https://www.gitoyen.net"><img src="https://user-images.githubusercontent.com/36127788/198088931-f16f4af4-57ae-42e9-8d42-fb3e2d8d7ee3.png" width="150px"/></a>
-<a style="padding: 5px;" href="https://tetaneutral.net"><img src="https://user-images.githubusercontent.com/36127788/198088995-3ad9c34d-9807-4ead-934b-44df97d3c552.png" width="90px"/></a>
-<a style="padding: 5px;" href="https://ldn-fai.net"><img src="https://user-images.githubusercontent.com/36127788/198089086-a4089d51-9173-4081-bd2e-fa1ac3378e49.png" width="120px"/></a>
-<a style="padding: 5px;" href="https://www.nbs-system.com"><img src="https://user-images.githubusercontent.com/36127788/198089161-4cc0b7b7-bf56-4798-892e-a76112497921.png" width="130px"/></a>
+<a style="padding: 5px;" href="https://www.globenet.org"><img alt="Globenet" src="https://user-images.githubusercontent.com/36127788/198088794-751129ab-737d-4d99-9f35-5e01845dcdfe.png" width="150px"/></a>
+<a style="padding: 5px;" href="https://www.gitoyen.net"><img alt="Gitoyen" src="https://user-images.githubusercontent.com/36127788/198088931-f16f4af4-57ae-42e9-8d42-fb3e2d8d7ee3.png" width="150px"/></a>
+<a style="padding: 5px;" href="https://tetaneutral.net"><img alt="tetaneutral.net" src="https://user-images.githubusercontent.com/36127788/198088995-3ad9c34d-9807-4ead-934b-44df97d3c552.png" width="90px"/></a>
+<a style="padding: 5px;" href="https://ldn-fai.net"><img alt="LDN (Lorraine Data Network)" src="https://user-images.githubusercontent.com/36127788/198089086-a4089d51-9173-4081-bd2e-fa1ac3378e49.png" width="120px"/></a>
+<a style="padding: 5px;" href="https://www.nbs-system.com"><img alt="NBS System" src="https://user-images.githubusercontent.com/36127788/198089161-4cc0b7b7-bf56-4798-892e-a76112497921.png" width="130px"/></a>
 </p>
 </div>
 

bin/yunohost

@@ -24,6 +24,9 @@ def _parse_cli_args():
     parser.add_argument(
         "--quiet", action="store_true", default=False, help="Don't produce any output"
     )
+    parser.add_argument(
+        "--version", action="store_true", default=False, help="Display YunoHost packages versions (alias to 'yunohost tools versions')"
+    )
     parser.add_argument(
         "--timeout",
         type=int,
@@ -50,6 +53,7 @@ def _parse_cli_args():
 
 
 # Stupid PATH management because sometimes (e.g. some cron job) PATH is only /usr/bin:/bin ...
+
 default_path = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 if os.environ["PATH"] != default_path:
     os.environ["PATH"] = default_path + ":" + os.environ["PATH"]
@@ -66,6 +70,9 @@ if __name__ == "__main__":
 
     parser, opts, args = _parse_cli_args()
 
+    if opts.version:
+        args = ["tools", "versions"]
+
     # Execute the action
     yunohost.cli(
         debug=opts.debug,

bin/yunopaste

@@ -1,77 +1,34 @@
-#!/bin/bash
+#!/usr/bin/env python3
 
-set -e
-set -u
+import sys
+import requests
+import json
 
-PASTE_URL="https://paste.yunohost.org"
+SERVER_URL = "https://paste.yunohost.org"
+TIMEOUT = 3
 
-_die() {
-  printf "Error: %s\n" "$*"
-  exit 1
-}
+def create_snippet(data):
+    try:
+        url = SERVER_URL + "/documents"
+        response = requests.post(url, data=data.encode('utf-8'), timeout=TIMEOUT)
+        response.raise_for_status()
+        dockey = json.loads(response.text)['key']
+        return SERVER_URL + "/raw/" + dockey
+    except requests.exceptions.RequestException as e:
+        print("\033[31mError: {}\033[0m".format(e))
+        sys.exit(1)
 
-check_dependencies() {
-  curl -V > /dev/null 2>&1 || _die "This script requires curl."
-}
 
-paste_data() {
-  json=$(curl -X POST -s -d "$1" "${PASTE_URL}/documents")
-  [[ -z "$json" ]] && _die "Unable to post the data to the server."
+def main():
+    output = sys.stdin.read()
 
-  key=$(echo "$json" \
-    | python -c 'import json,sys;o=json.load(sys.stdin);print o["key"]' \
-        2>/dev/null)
-  [[ -z "$key" ]] && _die "Unable to parse the server response."
+    if not output:
+        print("\033[31mError: No input received from stdin.\033[0m")
+        sys.exit(1)
 
-  echo "${PASTE_URL}/${key}"
-}
+    url = create_snippet(output)
 
-usage() {
-  printf "Usage: ${0} [OPTION]...
+    print("\033[32mURL: {}\033[0m".format(url))
 
-Read from input stream and paste the data to the YunoHost
-Haste server.
-
-For example, to paste the output of the YunoHost diagnosis, you
-can simply execute the following:
-  yunohost diagnosis show | ${0}
-
-It will return the URL where you can access the pasted data.
-
-Options:
-  -h, --help   show this help message and exit
-"
-}
-
-main() {
-  # parse options
-  while (( ${#} )); do
-    case "${1}" in
-      --help|-h)
-        usage
-        exit 0
-        ;;
-      *)
-        echo "Unknown parameter detected: ${1}" >&2
-        echo >&2
-        usage >&2
-        exit 1
-        ;;
-    esac
-
-    shift 1
-  done
-
-  # check input stream
-  read -t 0 || {
-    echo -e "Invalid usage: No input is provided.\n" >&2
-    usage
-    exit 1
-  }
-
-  paste_data "$(cat)"
-}
-
-check_dependencies
-
-main "${@}"
+if __name__ == "__main__":
+    main()

bin/yunoprompt

@@ -56,7 +56,7 @@ EOF
 
 echo "$LOGO_AND_FINGERPRINTS" > /etc/issue
 
-if [[ ! -f /etc/yunohost/installed ]]
+if ! groups | grep -q all_users && [[ ! -f /etc/yunohost/installed ]]
 then
     chvt 2
 
@@ -69,7 +69,7 @@ then
 You should now proceed with YunoHost post-installation. This is where you will
 be asked for:
   - the main domain of your server;
-  - the administration password.
+  - the username and password for the first admin
 
 You can perform this step:
   - from your web browser, by accessing: https://yunohost.local/ or ${local_ip}

conf/dovecot/dovecot.conf

@@ -10,7 +10,7 @@ mail_uid = 500
 
 protocols = imap sieve {% if pop3_enabled == "True" %}pop3{% endif %}
 
-mail_plugins = $mail_plugins quota
+mail_plugins = $mail_plugins quota notify push_notification
 
 ###############################################################################
 
@@ -38,14 +38,26 @@ ssl_prefer_server_ciphers = no
 ###############################################################################
 
 
+# Regular Yunohost accounts
 passdb {
   args = /etc/dovecot/dovecot-ldap.conf
   driver = ldap
 }
 
+# Internally, allow authentication from apps system user who have "enable_email = true"
+passdb {
+  driver = passwd-file
+  args = /etc/dovecot/app-senders-passwd
+}
+
 userdb {
-  args = /etc/dovecot/dovecot-ldap.conf
   driver = ldap
+  args = /etc/dovecot/dovecot-ldap.conf
+}
+
+userdb {
+  driver = passwd-file
+  args = username_format=%n /etc/dovecot/app-senders-passwd
 }
 
 protocol imap {
@@ -53,13 +65,40 @@ protocol imap {
   mail_plugins = $mail_plugins imap_quota antispam
 }
 
-
 protocol lda {
   auth_socket_path = /var/run/dovecot/auth-master
   mail_plugins = quota sieve
   postmaster_address = postmaster@{{ main_domain }}
 }
 
+namespace inbox {
+  inbox = yes
+
+  mailbox Drafts {
+    special_use = \Drafts
+    auto = subscribe
+  }
+  mailbox Junk {
+    special_use = \Junk
+    auto = subscribe
+  }
+  mailbox Trash {
+    special_use = \Trash
+    auto = subscribe
+  }
+  mailbox Sent {
+    special_use = \Sent
+    auto = subscribe
+  }
+  mailbox "Sent Messages" {
+    special_use = \Sent
+  }
+  mailbox "Archive" {
+    special_use = \Archive
+    auto = subscribe
+  }
+}
+
 protocol sieve {
 }
 
@@ -107,8 +146,8 @@ plugin {
   antispam_debug_target = syslog
   antispam_verbose_debug = 0
   antispam_backend = pipe
-  antispam_spam = Junk;SPAM
-  antispam_trash = Trash
+  antispam_spam_pattern_ignorecase = junk;spam
+  antispam_trash_pattern_ignorecase = trash;papierkorb;deleted messages
   antispam_pipe_program = /usr/bin/rspamc
   antispam_pipe_program_args = -h;localhost:11334;-P;q1
   antispam_pipe_program_spam_arg = learn_spam

conf/dovecot/dovecot.sieve

@@ -1,4 +1,4 @@
 require "fileinto"; 
-    if header :contains "X-Spam-Flag" "YES" { 
+    if header :contains "X-Spam-Flag" "Yes" { 
         fileinto "Junk"; 
     }

conf/fail2ban/postfix-sasl.conf

@@ -0,0 +1,6 @@
+# Fail2Ban filter for postfix authentication failures
+[INCLUDES]
+before = common.conf
+[Definition]
+_daemon = postfix/smtpd
+failregex = ^%(__prefix_line)swarning: [-._\w]+\[<HOST>\]: SASL (?:LOGIN|PLAIN|(?:CRAM|DIGEST)-MD5) authentication failed(: [ A-Za-z0-9+/]*={0,2})?\s*$

conf/fail2ban/yunohost-jails.conf

@@ -8,6 +8,13 @@ enabled = true
 [postfix]
 enabled = true
 
+[sasl]
+enabled  = true
+port     = smtp
+filter   = postfix-sasl
+logpath  = /var/log/mail.log
+maxretry = 5
+
 [dovecot]
 enabled = true
 

conf/metronome/modules/mod_legacyauth.lua

@@ -84,4 +84,3 @@ module:hook("stanza/iq/jabber:iq:auth:query", function(event)
     end
     return true;
 end);
-

conf/nginx/plain/acme-challenge.conf.inc

@@ -1,6 +1,6 @@
 location ^~ '/.well-known/acme-challenge/'
 {
         default_type "text/plain";
-        alias /tmp/acme-challenge-public/;
+        alias /var/www/.well-known/acme-challenge-public/;
         gzip off;
 }

conf/nginx/plain/yunohost_http_errors.conf.inc

@@ -0,0 +1,7 @@
+error_page 502 /502.html;
+
+location = /502.html {
+
+        root /usr/share/yunohost/html/;
+
+}

conf/nginx/redirect_to_admin.conf

@@ -1,3 +1,3 @@
 location / {
-    return 302 https://$http_host/yunohost/admin;
+    return 302 https://$host/yunohost/admin;
 }

conf/nginx/security.conf.inc

@@ -26,7 +26,7 @@ ssl_dhparam /usr/share/yunohost/ffdhe2048.pem;
 # https://wiki.mozilla.org/Security/Guidelines/Web_Security
 # https://observatory.mozilla.org/
 {% if experimental == "True" %}
-more_set_headers "Content-Security-Policy : upgrade-insecure-requests; default-src https: data: blob: ; object-src https: data: 'unsafe-inline'; style-src https: data: 'unsafe-inline' ; script-src https: data: 'unsafe-inline' 'unsafe-eval'";
+more_set_headers "Content-Security-Policy : upgrade-insecure-requests; default-src https: data: blob: ; object-src https: data: 'unsafe-inline'; style-src https: data: 'unsafe-inline' ; script-src https: data: 'unsafe-inline' 'unsafe-eval'; worker-src 'self' blob:;";
 {% else %}
 more_set_headers "Content-Security-Policy : upgrade-insecure-requests";
 {% endif %}

conf/nginx/server.tpl.conf

@@ -6,30 +6,34 @@ map $http_upgrade $connection_upgrade {
 server {
     listen 80;
     listen [::]:80;
-    server_name {{ domain }} xmpp-upload.{{ domain }};
+    server_name {{ domain }}{% if xmpp_enabled == "True" %} xmpp-upload.{{ domain }} muc.{{ domain }}{% endif %};
 
     access_by_lua_file /usr/share/ssowat/access.lua;
 
     include /etc/nginx/conf.d/acme-challenge.conf.inc;
 
     location ^~ '/.well-known/ynh-diagnosis/' {
-        alias /tmp/.well-known/ynh-diagnosis/;
+        alias /var/www/.well-known/ynh-diagnosis/;
     }
 
+    {% if mail_enabled == "True" %}
     location ^~ '/.well-known/autoconfig/mail/' {
         alias /var/www/.well-known/{{ domain }}/autoconfig/mail/;
     }
+    {% endif %}
 
     {# Note that this != "False" is meant to be failure-safe, in the case the redrect_to_https would happen to contain empty string or whatever value. We absolutely don't want to disable the HTTPS redirect *except* when it's explicitly being asked to be disabled. #}
     {% if redirect_to_https != "False" %}
     location / {
-        return 301 https://$http_host$request_uri;
+        return 301 https://$host$request_uri;
     }
     {# The app config snippets are not included in the HTTP conf unless HTTPS redirect is disabled, because app's location may blocks will conflict or bypass/ignore the HTTPS redirection. #}
     {% else %}
     include /etc/nginx/conf.d/{{ domain }}.d/*.conf;
     {% endif %}
 
+    include /etc/nginx/conf.d/yunohost_http_errors.conf.inc;
+
     access_log /var/log/nginx/{{ domain }}-access.log;
     error_log /var/log/nginx/{{ domain }}-error.log;
 }
@@ -52,13 +56,15 @@ server {
     ssl_stapling on;
     ssl_stapling_verify on;
     ssl_trusted_certificate /etc/yunohost/certs/{{ domain }}/crt.pem;
-    resolver 127.0.0.1 127.0.1.1 valid=300s;
+    resolver 1.1.1.1 9.9.9.9 valid=300s;
     resolver_timeout 5s;
     {% endif %}
 
+    {% if mail_enabled == "True" %}
     location ^~ '/.well-known/autoconfig/mail/' {
         alias /var/www/.well-known/{{ domain }}/autoconfig/mail/;
     }
+    {% endif %}
 
     access_by_lua_file /usr/share/ssowat/access.lua;
 
@@ -67,11 +73,13 @@ server {
     include /etc/nginx/conf.d/yunohost_sso.conf.inc;
     include /etc/nginx/conf.d/yunohost_admin.conf.inc;
     include /etc/nginx/conf.d/yunohost_api.conf.inc;
+    include /etc/nginx/conf.d/yunohost_http_errors.conf.inc;
 
     access_log /var/log/nginx/{{ domain }}-access.log;
     error_log /var/log/nginx/{{ domain }}-error.log;
 }
 
+{% if xmpp_enabled == "True" %}
 # vhost dedicated to XMPP http_upload
 server {
     listen 443 ssl http2;
@@ -107,10 +115,11 @@ server {
     ssl_stapling on;
     ssl_stapling_verify on;
     ssl_trusted_certificate /etc/yunohost/certs/{{ domain }}/crt.pem;
-    resolver 127.0.0.1 127.0.1.1 valid=300s;
+    resolver 1.1.1.1 9.9.9.9 valid=300s;
     resolver_timeout 5s;
     {% endif %}
 
     access_log /var/log/nginx/xmpp-upload.{{ domain }}-access.log;
     error_log /var/log/nginx/xmpp-upload.{{ domain }}-error.log;
 }
+{% endif %}

conf/nginx/yunohost_admin.conf.inc

@@ -7,9 +7,11 @@ location /yunohost/admin/ {
     index index.html;
 
     {% if webadmin_allowlist_enabled == "True" %}
-    {% for ip in webadmin_allowlist.split(',') %}
-    allow {{ ip }};
-    {% endfor %}
+    {% if webadmin_allowlist.strip() -%}
+    {% for ip in webadmin_allowlist.strip().split(',') -%}
+    allow {{ ip.strip() }};
+    {% endfor -%}
+    {% endif -%}
     deny all;
     {% endif %}
 
@@ -19,6 +21,10 @@ location /yunohost/admin/ {
         more_set_headers "Cache-Control: no-store, no-cache, must-revalidate";
     }
 
+    location /yunohost/admin/applogos/ {
+        alias /usr/share/yunohost/applogos/;
+    }
+
     more_set_headers "Content-Security-Policy: upgrade-insecure-requests; default-src 'self'; connect-src 'self' https://paste.yunohost.org wss://$host; style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-eval'; object-src 'none'; img-src 'self' data:;";
     more_set_headers "Content-Security-Policy-Report-Only:";
 }

conf/nginx/yunohost_api.conf.inc

@@ -4,7 +4,7 @@ location /yunohost/api/ {
     proxy_http_version 1.1;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "upgrade";
-    proxy_set_header Host $http_host;
+    proxy_set_header Host $host;
 
     {% if webadmin_allowlist_enabled == "True" %}
     {% for ip in webadmin_allowlist.split(',') %}

conf/postfix/main.cf

@@ -100,14 +100,18 @@ message_size_limit = 35914708
 
 # Virtual Domains Control
 virtual_mailbox_domains = ldap:/etc/postfix/ldap-domains.cf
-virtual_mailbox_maps = ldap:/etc/postfix/ldap-accounts.cf
+virtual_mailbox_maps = ldap:/etc/postfix/ldap-accounts.cf,hash:/etc/postfix/app_senders_login_maps
 virtual_mailbox_base =
 virtual_alias_maps = ldap:/etc/postfix/ldap-aliases.cf,ldap:/etc/postfix/ldap-groups.cf
 virtual_alias_domains =
 virtual_minimum_uid = 100
 virtual_uid_maps = static:vmail
 virtual_gid_maps = static:mail
-smtpd_sender_login_maps= ldap:/etc/postfix/ldap-accounts.cf
+smtpd_sender_login_maps = unionmap:{
+   # Regular Yunohost accounts
+   ldap:/etc/postfix/ldap-accounts.cf,
+   # Extra maps for app system users who need to send emails
+   hash:/etc/postfix/app_senders_login_maps }
 
 # Dovecot LDA
 virtual_transport = dovecot
@@ -207,3 +211,11 @@ smtp_sasl_security_options = noanonymous
 # where to find sasl_passwd
 smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd
 {% endif %}
+
+{% if backup_mx_domains != "" %}
+# Backup MX (secondary MX)
+relay_domains = $mydestination {{backup_mx_domains}}
+relay_recipient_maps = hash:/etc/postfix/relay_recipients
+maximal_queue_lifetime = 20d
+{% endif %}
+

conf/postfix/plain/ldap-groups.cf

@@ -2,8 +2,6 @@ server_host = localhost
 server_port = 389
 search_base = dc=yunohost,dc=org
 query_filter = (&(objectClass=groupOfNamesYnh)(mail=%s))
-exclude_internal = yes
-search_timeout = 30
 scope = sub
 result_attribute = memberUid, mail
 terminal_result_attribute = memberUid

conf/postfix/sni

@@ -1,2 +1,4 @@
+# This maps domain to certificates to properly handle multi-domain context
+# (also we need a comment in this file such that it's never empty to prevent regenconf issues)
 {% for domain in domain_list.split() %}{{ domain }} /etc/yunohost/certs/{{ domain }}/key.pem /etc/yunohost/certs/{{ domain }}/crt.pem
 {% endfor %}

conf/rspamd/redis.conf

@@ -0,0 +1,2 @@
+# set redis server
+servers = "127.0.0.1";

conf/rspamd/rspamd.sieve

@@ -1,4 +1,4 @@
 require ["fileinto"];
-if header :is "X-Spam" "yes" {
+if header :is "X-Spam" "Yes" {
     fileinto "Junk";
 }

conf/slapd/config.ldif

@@ -10,7 +10,7 @@
 # Config database customization:
 # 1. Edit this file as you want.
 # 2. Apply your modifications. For this just run this following command in a shell:
-#    $ /usr/share/yunohost/hooks/conf_regen/06-slapd apply_config
+#    $ /usr/share/yunohost/hooks/conf_regen/06-slapd post true
 #
 # Note that if you customize this file, YunoHost's regen-conf will NOT
 # overwrite this file. But that also means that you should be careful about
@@ -159,6 +159,7 @@ olcAccess: {2}to dn.base=""
 # can read everything.
 olcAccess: {3}to *
     by dn.base="gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth" write
+    by group/groupOfNamesYnh/member.exact="cn=admins,ou=groups,dc=yunohost,dc=org" write
     by * read
 #
 olcAddContentAcl: FALSE

conf/slapd/db_init.ldif

@@ -47,14 +47,7 @@ dn: cn=admins,ou=groups,dc=yunohost,dc=org
 objectClass: posixGroup
 objectClass: top
 objectClass: groupOfNamesYnh
-objectClass: mailGroup
 gidNumber: 4001
-mail: root
-mail: admin
-mail: admins
-mail: webmaster
-mail: postmaster
-mail: abuse
 cn: admins
 
 dn: cn=all_users,ou=groups,dc=yunohost,dc=org

conf/slapd/slapd.default

@@ -21,7 +21,7 @@ SLAPD_PIDFILE=
 # sockets.
 # Example usage:
 # SLAPD_SERVICES="ldap://127.0.0.1:389/ ldaps:/// ldapi:///"
-SLAPD_SERVICES="ldap://127.0.0.1:389/ ldaps:/// ldapi:///"
+SLAPD_SERVICES="ldap://localhost:389/ ldaps:/// ldapi:///"
 
 # If SLAPD_NO_START is set, the init script will not start or restart
 # slapd (but stop will still work).  Uncomment this if you are

conf/ssh/sshd_config

@@ -64,7 +64,7 @@ PasswordAuthentication no
 {% endif %}
 
 # Post-login stuff
-Banner /etc/issue.net
+# Banner none
 PrintMotd no
 PrintLastLog yes
 ClientAliveInterval 60
@@ -84,7 +84,7 @@ Subsystem sftp internal-sftp
 
 # Apply following instructions to user with sftp perm only
 Match Group sftp.main,!ssh.main
-    ForceCommand internal-sftp
+    ForceCommand internal-sftp -u 0002
     # We can't restrict to /home/%u because the chroot base must be owned by root
     # So we chroot only on /home
     # See https://serverfault.com/questions/584986/bad-ownership-or-modes-for-chroot-directory-component
@@ -97,7 +97,7 @@ Match Group sftp.main,!ssh.main
     PermitUserRC no
 
 Match Group sftp.app,!ssh.app
-    ForceCommand internal-sftp
+    ForceCommand internal-sftp -u 0002
     ChrootDirectory %h
     AllowTcpForwarding no
     AllowStreamLocalForwarding no

debian/control

@@ -10,14 +10,14 @@ Package: yunohost
 Essential: yes
 Architecture: all
 Depends: ${python3:Depends}, ${misc:Depends}
- , moulinette (>= 11.0), ssowat (>= 11.0)
+ , moulinette (>= 11.1), moulinette (<< 12.0), ssowat (>= 11.1), ssowat (<< 12.0)
  , python3-psutil, python3-requests, python3-dnspython, python3-openssl
  , python3-miniupnpc, python3-dbus, python3-jinja2
  , python3-toml, python3-packaging, python3-publicsuffix2
  , python3-ldap, python3-zeroconf (>= 0.36), python3-lexicon,
  , python-is-python3
  , nginx, nginx-extras (>=1.18)
- , apt, apt-transport-https, apt-utils, dirmngr
+ , apt, apt-transport-https, apt-utils, aptitude, dirmngr
  , openssh-server, iptables, fail2ban, bind9-dnsutils
  , openssl, ca-certificates, netcat-openbsd, iproute2
  , slapd, ldap-utils, sudo-ldap, libnss-ldapd, unscd, libpam-ldapd
@@ -27,8 +27,8 @@ Depends: ${python3:Depends}, ${misc:Depends}
  , rspamd, opendkim-tools, postsrsd, procmail, mailutils
  , redis-server
  , acl
- , git, curl, wget, cron, unzip, jq, bc, at, procps
- , lsb-release, haveged, fake-hwclock, equivs, lsof, whois
+ , git, curl, wget, cron, unzip, jq, bc, at, procps, j2cli
+ , lsb-release, haveged, fake-hwclock, lsof, whois
 Recommends: yunohost-admin
  , ntp, inetutils-ping | iputils-ping
  , bash-completion, rsyslog
@@ -43,7 +43,7 @@ Conflicts: iptables-persistent
  , apache2
  , bind9
  , nginx-extras (>= 1.19)
- , openssl (>= 1.1.1o-0)
+ , openssl (>= 3.0)
  , slapd (>= 2.4.58)
  , dovecot-core (>= 1:2.3.14)
  , redis-server (>= 5:6.1)

debian/install

@@ -1,7 +1,7 @@
 bin/* /usr/bin/
 share/* /usr/share/yunohost/
 hooks/* /usr/share/yunohost/hooks/
-helpers/* /usr/share/yunohost/helpers.d/
+helpers/* /usr/share/yunohost/
 conf/* /usr/share/yunohost/conf/
 locales/* /usr/share/yunohost/locales/
 doc/yunohost.8.gz /usr/share/man/man8/

debian/postinst

@@ -20,13 +20,17 @@ do_configure() {
         fi
     else
         echo "Regenerating configuration, this might take a while..."
+        yunohost app ssowatconf
         yunohost tools regen-conf --output-as none
 
         echo "Launching migrations..."
         yunohost tools migrations run --auto
 
         echo "Re-diagnosing server health..."
-        yunohost diagnosis run --force
+        [[ -n "${YNH_SKIP_DIAGNOSIS_DURING_UPGRADE:-}" ]] && echo "(Skipping)" || yunohost diagnosis run --force
+
+        echo "Refreshing app catalog..."
+        yunohost tools update apps --output-as none || true
     fi
 
     # Trick to let yunohost handle the restart of the API,
@@ -52,7 +56,6 @@ API_START_TIMESTAMP="\$(date --date="\$(systemctl show yunohost-api | grep ExecM
 
 if [ "\$(( \$(date +%s) - \$API_START_TIMESTAMP ))" -ge 60 ];
 then
-    echo "restart" >> /var/log/testalex
     systemctl restart yunohost-api
 fi
 EOF

doc/api.html

@@ -0,0 +1,42 @@
+<!-- HTML for static distribution bundle build -->
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8">
+    <title>Swagger UI</title>
+    <link rel="stylesheet" type="text/css" href="swagger/swagger-ui.css" />
+    <link rel="stylesheet" type="text/css" href="swagger/index.css" />
+    <link rel="icon" type="image/png" href="swagger/favicon-32x32.png" sizes="32x32" />
+  </head>
+
+  <body>
+    <div id="swagger-ui"></div>
+    <script src="swagger/swagger-ui-bundle.js" charset="UTF-8"> </script>
+    <script src="swagger/swagger-ui-standalone-preset.js" charset="UTF-8"> </script>
+    <script src="openapi.js" type="text/javascript" language="javascript"></script>
+    <script>
+    window.onload = function() {
+  //<editor-fold desc="Changeable Configuration Block">
+  // the following lines will be replaced by docker/configurator, when it runs in a docker-container
+  window.ui = SwaggerUIBundle({
+    spec: openapiJSON,
+    dom_id: '#swagger-ui',
+    deepLinking: true,
+    displayOperationId: true,
+    validatorUrl: null,
+    presets: [
+      SwaggerUIBundle.presets.apis,
+      SwaggerUIStandalonePreset
+    ],
+    layout: "StandaloneLayout"
+  });
+
+  //</editor-fold>
+};
+
+
+
+    </script>
+  </body>
+</html>
+

doc/generate_api_doc.py

@@ -0,0 +1,283 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+""" License
+    Copyright (C) 2013 YunoHost
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+    You should have received a copy of the GNU Affero General Public License
+    along with this program; if not, see http://www.gnu.org/licenses
+"""
+
+"""
+    Generate JSON specification files API
+"""
+import os
+import sys
+import yaml
+import json
+
+
+def main():
+    with open("../share/actionsmap.yml") as f:
+        action_map = yaml.safe_load(f)
+
+    # try:
+    #    with open("/etc/yunohost/current_host", "r") as f:
+    #        domain = f.readline().rstrip()
+    # except IOError:
+    #    domain = requests.get("http://ip.yunohost.org").text
+
+    with open("../debian/changelog") as f:
+        top_changelog = f.readline()
+    api_version = top_changelog[top_changelog.find("(") + 1 : top_changelog.find(")")]
+
+    csrf = {
+        "name": "X-Requested-With",
+        "in": "header",
+        "required": True,
+        "schema": {"type": "string", "default": "Swagger API"},
+    }
+
+    resource_list = {
+        "openapi": "3.0.3",
+        "info": {
+            "title": "YunoHost API",
+            "description": "This is the YunoHost API used on all YunoHost instances. This API is essentially used by YunoHost Webadmin.",
+            "version": api_version,
+        },
+        "servers": [
+            {
+                "url": "https://{domain}/yunohost/api",
+                "variables": {
+                    "domain": {
+                        "default": "demo.yunohost.org",
+                        "description": "Your yunohost domain",
+                    }
+                },
+            }
+        ],
+        "tags": [{"name": "public", "description": "Public route"}],
+        "paths": {
+            "/login": {
+                "post": {
+                    "tags": ["public"],
+                    "summary": "Logs in and returns the authentication cookie",
+                    "parameters": [csrf],
+                    "requestBody": {
+                        "required": True,
+                        "content": {
+                            "multipart/form-data": {
+                                "schema": {
+                                    "type": "object",
+                                    "properties": {
+                                        "credentials": {
+                                            "type": "string",
+                                            "format": "password",
+                                        }
+                                    },
+                                    "required": ["credentials"],
+                                }
+                            }
+                        },
+                    },
+                    "security": [],
+                    "responses": {
+                        "200": {
+                            "description": "Successfully login",
+                            "headers": {"Set-Cookie": {"schema": {"type": "string"}}},
+                        }
+                    },
+                }
+            },
+            "/installed": {
+                "get": {
+                    "tags": ["public"],
+                    "summary": "Test if the API is working",
+                    "parameters": [],
+                    "security": [],
+                    "responses": {
+                        "200": {
+                            "description": "Successfully working",
+                        }
+                    },
+                }
+            },
+        },
+    }
+
+    def convert_categories(categories, parent_category=""):
+        for category, category_params in categories.items():
+            if parent_category:
+                category = f"{parent_category} {category}"
+            if "subcategory_help" in category_params:
+                category_params["category_help"] = category_params["subcategory_help"]
+
+            if "category_help" not in category_params:
+                category_params["category_help"] = ""
+            resource_list["tags"].append(
+                {"name": category, "description": category_params["category_help"]}
+            )
+
+            for action, action_params in category_params["actions"].items():
+                if "action_help" not in action_params:
+                    action_params["action_help"] = ""
+                if "api" not in action_params:
+                    continue
+                if not isinstance(action_params["api"], list):
+                    action_params["api"] = [action_params["api"]]
+
+                for i, api in enumerate(action_params["api"]):
+                    print(api)
+                    method, path = api.split(" ")
+                    method = method.lower()
+                    key_param = ""
+                    if "{" in path:
+                        key_param = path[path.find("{") + 1 : path.find("}")]
+                    resource_list["paths"].setdefault(path, {})
+
+                    notes = ""
+
+                    operationId = f"{category}_{action}"
+                    if i > 0:
+                        operationId += f"_{i}"
+                    operation = {
+                        "tags": [category],
+                        "operationId": operationId,
+                        "summary": action_params["action_help"],
+                        "description": notes,
+                        "responses": {"200": {"description": "successful operation"}},
+                    }
+                    if action_params.get("deprecated"):
+                        operation["deprecated"] = True
+
+                    operation["parameters"] = []
+                    if method == "post":
+                        operation["parameters"] = [csrf]
+
+                    if "arguments" in action_params:
+                        if method in ["put", "post", "patch"]:
+                            operation["requestBody"] = {
+                                "required": True,
+                                "content": {
+                                    "multipart/form-data": {
+                                        "schema": {
+                                            "type": "object",
+                                            "properties": {},
+                                            "required": [],
+                                        }
+                                    }
+                                },
+                            }
+                        for arg_name, arg_params in action_params["arguments"].items():
+                            if "help" not in arg_params:
+                                arg_params["help"] = ""
+                            param_type = "query"
+                            allow_multiple = False
+                            required = True
+                            allowable_values = None
+                            name = str(arg_name).replace("-", "_")
+                            if name[0] == "_":
+                                required = False
+                                if "full" in arg_params:
+                                    name = arg_params["full"][2:]
+                                else:
+                                    name = name[2:]
+                                name = name.replace("-", "_")
+
+                            if "choices" in arg_params:
+                                allowable_values = arg_params["choices"]
+                            _type = "string"
+                            if "type" in arg_params:
+                                types = {"open": "file", "int": "int"}
+                                _type = types[arg_params["type"]]
+                            if (
+                                "action" in arg_params
+                                and arg_params["action"] == "store_true"
+                            ):
+                                _type = "boolean"
+
+                            if "nargs" in arg_params:
+                                if arg_params["nargs"] == "*":
+                                    allow_multiple = True
+                                    required = False
+                                    _type = "array"
+                                if arg_params["nargs"] == "+":
+                                    allow_multiple = True
+                                    required = True
+                                    _type = "array"
+                                if arg_params["nargs"] == "?":
+                                    allow_multiple = False
+                                    required = False
+                            else:
+                                allow_multiple = False
+
+                            if name == key_param:
+                                param_type = "path"
+                                required = True
+                                allow_multiple = False
+
+                            if method in ["put", "post", "patch"]:
+                                schema = operation["requestBody"]["content"][
+                                    "multipart/form-data"
+                                ]["schema"]
+                                schema["properties"][name] = {
+                                    "type": _type,
+                                    "description": arg_params["help"],
+                                }
+                                if required:
+                                    schema["required"].append(name)
+                                prop_schema = schema["properties"][name]
+                            else:
+                                parameters = {
+                                    "name": name,
+                                    "in": param_type,
+                                    "description": arg_params["help"],
+                                    "required": required,
+                                    "schema": {
+                                        "type": _type,
+                                    },
+                                    "explode": allow_multiple,
+                                }
+                                prop_schema = parameters["schema"]
+                                operation["parameters"].append(parameters)
+
+                            if allowable_values is not None:
+                                prop_schema["enum"] = allowable_values
+                            if "default" in arg_params:
+                                prop_schema["default"] = arg_params["default"]
+                            if arg_params.get("metavar") == "PASSWORD":
+                                prop_schema["format"] = "password"
+                            if arg_params.get("metavar") == "MAIL":
+                                prop_schema["format"] = "mail"
+                            # Those lines seems to slow swagger ui too much
+                            # if 'pattern' in arg_params.get('extra', {}):
+                            #    prop_schema['pattern'] = arg_params['extra']['pattern'][0]
+
+                    resource_list["paths"][path][method.lower()] = operation
+
+            # Includes subcategories
+            if "subcategories" in category_params:
+                convert_categories(category_params["subcategories"], category)
+
+    del action_map["_global"]
+    convert_categories(action_map)
+
+    openapi_json = json.dumps(resource_list)
+    # Save the OpenAPI json
+    with open(os.getcwd() + "/openapi.json", "w") as f:
+        f.write(openapi_json)
+
+    openapi_js = f"var openapiJSON = {openapi_json}"
+    with open(os.getcwd() + "/openapi.js", "w") as f:
+        f.write(openapi_js)
+
+
+if __name__ == "__main__":
+    sys.exit(main())

doc/generate_bash_completion.py

@@ -8,6 +8,7 @@ adds `--help` at the end if one presses [tab] again.
 
 author: Christophe Vuillot
 """
+
 import os
 import yaml
 
@@ -31,7 +32,6 @@ def get_dict_actions(OPTION_SUBTREE, category):
 
 
 with open(ACTIONSMAP_FILE, "r") as stream:
-
     # Getting the dictionary containning what actions are possible per category
     OPTION_TREE = yaml.safe_load(stream)
 
@@ -65,7 +65,6 @@ with open(ACTIONSMAP_FILE, "r") as stream:
     os.makedirs(BASH_COMPLETION_FOLDER, exist_ok=True)
 
     with open(BASH_COMPLETION_FILE, "w") as generated_file:
-
         # header of the file
         generated_file.write("#\n")
         generated_file.write("# completion for yunohost\n")

doc/generate_helper_doc.py

@@ -1,10 +1,55 @@
 #!/usr/env/python3
 
+import sys
 import os
 import glob
 import datetime
 import subprocess
 
+tree = {
+    "sources": {
+        "title": "Sources",
+        "notes": "This is coupled to the 'sources' resource in the manifest.toml",
+        "subsections": ["sources"],
+    },
+    "tech": {
+        "title": "App technologies",
+        "notes": "These allow to install specific version of the technology required to run some apps",
+        "subsections": ["nodejs", "ruby", "go", "composer"],
+    },
+    "db": {
+        "title": "Databases",
+        "notes": "This is coupled to the 'database' resource in the manifest.toml - at least for mysql/postgresql. Mongodb/redis may have better integration in the future.",
+        "subsections": ["mysql", "postgresql", "mongodb", "redis"],
+    },
+    "conf": {
+        "title": "Configurations / templating",
+        "subsections": [
+            "templating",
+            "nginx",
+            "php",
+            "systemd",
+            "fail2ban",
+            "logrotate",
+        ],
+    },
+    "misc": {
+        "title": "Misc tools",
+        "subsections": [
+            "utils",
+            "setting",
+            "string",
+            "backup",
+            "logging",
+            "multimedia",
+        ],
+    },
+    "meh": {
+        "title": "Deprecated or handled by the core / app resources since v2",
+        "subsections": ["permission", "apt", "systemuser"],
+    },
+}
+
 
 def get_current_commit():
     p = subprocess.Popen(
@@ -19,15 +64,7 @@ def get_current_commit():
     return current_commit
 
 
-def render(helpers):
-
-    current_commit = get_current_commit()
-
-    data = {
-        "helpers": helpers,
-        "date": datetime.datetime.now().strftime("%m/%d/%Y"),
-        "version": open("../debian/changelog").readlines()[0].split()[1].strip("()"),
-    }
+def render(tree, helpers_version):
 
     from jinja2 import Template
     from ansi2html import Ansi2HTMLConverter
@@ -43,12 +80,15 @@ def render(helpers):
     t = Template(template)
     t.globals["now"] = datetime.datetime.utcnow
     result = t.render(
-        current_commit=current_commit,
-        data=data,
+        tree=tree,
+        date=datetime.datetime.now().strftime("%d/%m/%Y"),
+        version=open("../debian/changelog").readlines()[0].split()[1].strip("()"),
+        helpers_version=helpers_version,
+        current_commit=get_current_commit(),
         convert=shell_to_html,
         shell_css=shell_css,
     )
-    open("helpers.md", "w").write(result)
+    open(f"helpers.v{helpers_version}.md", "w").write(result)
 
 
 ##############################################################################
@@ -56,20 +96,17 @@ def render(helpers):
 
 class Parser:
     def __init__(self, filename):
-
         self.filename = filename
         self.file = open(filename, "r").readlines()
         self.blocks = None
 
     def parse_blocks(self):
-
         self.blocks = []
 
         current_reading = "void"
         current_block = {"name": None, "line": -1, "comments": [], "code": []}
 
         for i, line in enumerate(self.file):
-
             if line.startswith("#!/bin/bash"):
                 continue
 
@@ -91,7 +128,7 @@ class Parser:
                     # We're still in a comment bloc
                     assert line.startswith("# ") or line == "#", malformed_error(i)
                     current_block["comments"].append(line[2:])
-                elif line.strip() == "":
+                elif line.strip() == "" or line.startswith("_ynh"):
                     # Well eh that was not an actual helper definition ... start over ?
                     current_reading = "void"
                     current_block = {
@@ -117,14 +154,20 @@ class Parser:
                     current_reading = "code"
 
             elif current_reading == "code":
-
                 if line == "}":
                     # We're getting out of the function
                     current_reading = "void"
 
                     # Then we keep this bloc and start a new one
                     # (we ignore helpers containing [internal] ...)
-                    if "[internal]" not in current_block["comments"]:
+                    if (
+                        "[packagingv1]" not in current_block["comments"]
+                        and not any(
+                            line.startswith("[internal]")
+                            for line in current_block["comments"]
+                        )
+                        and not current_block["name"].startswith("_")
+                    ):
                         self.blocks.append(current_block)
                     current_block = {
                         "name": None,
@@ -138,7 +181,6 @@ class Parser:
                 continue
 
     def parse_block(self, b):
-
         b["brief"] = ""
         b["details"] = ""
         b["usage"] = ""
@@ -164,7 +206,6 @@ class Parser:
 
             elif subblock.startswith("usage"):
                 for line in subblock.split("\n"):
-
                     if line.startswith("| arg"):
                         linesplit = line.split()
                         argname = linesplit[2]
@@ -217,20 +258,26 @@ def malformed_error(line_number):
 
 def main():
 
-    helper_files = sorted(glob.glob("../helpers/*"))
-    helpers = []
+    if len(sys.argv) == 1:
+        print("This script needs the helper version (1, 2, 2.1) as an argument")
+        sys.exit(1)
 
-    for helper_file in helper_files:
-        category_name = os.path.basename(helper_file)
-        print("Parsing %s ..." % category_name)
+    version = sys.argv[1]
+
+    for section in tree.values():
+        section["helpers"] = {}
+        for subsection in section["subsections"]:
+            print(f"Parsing {subsection} ...")
+            helper_file = f"../helpers/helpers.v{version}.d/{subsection}"
+            assert os.path.isfile(helper_file), f"Uhoh, {file} doesn't exists?"
             p = Parser(helper_file)
             p.parse_blocks()
             for b in p.blocks:
                 p.parse_block(b)
 
-        helpers.append((category_name, p.blocks))
+            section["helpers"][subsection] = p.blocks
 
-    render(helpers)
+    render(tree, version)
 
 
 main()

doc/generate_manpages.py

@@ -60,7 +60,6 @@ def main():
 
     # man pages of "yunohost *"
     with open(ACTIONSMAP_FILE, "r") as actionsmap:
-
         # Getting the dictionary containning what actions are possible per domain
         actionsmap = ordered_yaml_load(actionsmap)
 

doc/generate_resource_doc.py

@@ -1,12 +1,70 @@
-from yunohost.utils.resources import AppResourceClassesByType
+import ast
+import datetime
+import subprocess
 
-resources = sorted(AppResourceClassesByType.values(), key=lambda r: r.priority)
+version = open("../debian/changelog").readlines()[0].split()[1].strip("()")
+today = datetime.datetime.now().strftime("%d/%m/%Y")
 
-for klass in resources:
 
-    doc = klass.__doc__.replace("\n    ", "\n")
+def get_current_commit():
+    p = subprocess.Popen(
+        "git rev-parse --verify HEAD",
+        shell=True,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+    )
+    stdout, stderr = p.communicate()
 
+    current_commit = stdout.strip().decode("utf-8")
+    return current_commit
+
+
+current_commit = get_current_commit()
+
+
+print(
+    f"""---
+title: App resources
+template: docs
+taxonomy:
+    category: docs
+routes:
+  default: '/packaging_apps_resources'
+---
+
+Doc auto-generated by [this script](https://github.com/YunoHost/yunohost/blob/{current_commit}/doc/generate_resource_doc.py) on {today} (YunoHost version {version})
+
+"""
+)
+
+
+fname = "../src/utils/resources.py"
+content = open(fname).read()
+
+# NB: This magic is because we want to be able to run this script outside of a YunoHost context,
+# in which we cant really 'import' the file because it will trigger a bunch of moulinette/yunohost imports...
+tree = ast.parse(content)
+
+ResourceClasses = [
+    c
+    for c in tree.body
+    if isinstance(c, ast.ClassDef) and c.bases and c.bases[0].id == "AppResource"
+]
+
+ResourceDocString = {}
+
+for c in ResourceClasses:
+    assert c.body[1].targets[0].id == "type"
+    resource_id = c.body[1].value.value
+    docstring = ast.get_docstring(c)
+
+    ResourceDocString[resource_id] = docstring
+
+
+for resource_id, doc in sorted(ResourceDocString.items()):
+    print("---")
     print("")
-    print(f"## {klass.type.replace('_', ' ').title()}")
+    print(f"## {resource_id.replace('_', ' ').title()}")
     print("")
     print(doc)
+    print("")

doc/helper_doc_template.md

@@ -1,18 +1,26 @@
 ---
-title: App helpers
+title: App helpers (v{{ helpers_version }})
 template: docs
 taxonomy:
     category: docs
 routes:
-  default: '/packaging_apps_helpers'
+  default: '/packaging_apps_helpers{% if helpers_version not in ["1", "2"] %}_v{{ helpers_version }}{% endif %}'
 ---
 
-Doc auto-generated by [this script](https://github.com/YunoHost/yunohost/blob/{{ current_commit }}/doc/generate_helper_doc.py) on {{data.date}} (YunoHost version {{data.version}})
+Doc auto-generated by [this script](https://github.com/YunoHost/yunohost/blob/{{ current_commit }}/doc/generate_helper_doc.py) on {{date}} (YunoHost version {{version}})
 
-{% for category, helpers in data.helpers %}
-## {{ category.upper() }}
+
+{% for section_id, section in tree.items() %}
+## {{ section["title"].title() }}
+
+{% if section['notes'] %}<p>{{ section['notes'] }}</p>{% endif %}
+
+    {% for subsection, helpers in section["helpers"].items() %}
+
+### {{ subsection.upper() }}
         {% for h in helpers %}
 #### {{ h.name }}
+
 [details summary="<i>{{ h.brief }}</i>" class="helper-card-subtitle text-muted"]
 
 **Usage**: `{{ h.usage }}`
@@ -48,12 +56,12 @@ Doc auto-generated by [this script](https://github.com/YunoHost/yunohost/blob/{{
 {%- endif %}
 {%- if h.details %}
 
-**Details**:<br/>
+**Details**:  
 {{ h.details }}
 {%- endif %}
-
-[Dude, show me the code!](https://github.com/YunoHost/yunohost/blob/{{ current_commit }}/helpers/{{ category }}#L{{ h.line + 1 }})
+[Dude, show me the code!](https://github.com/YunoHost/yunohost/blob/{{ current_commit }}/helpers/helpers.v{{ helpers_version if helpers_version != "2" else "1" }}.d/{{ subsection }}#L{{ h.line + 1 }})
 [/details]
-----------------
+        {% endfor %}
+---
     {% endfor %}
 {% endfor %}

helpers/apps

@@ -1,113 +0,0 @@
-#!/bin/bash
-
-# Install others YunoHost apps
-#
-# usage: ynh_install_apps --apps="appfoo?domain=domain.foo&path=/foo appbar?domain=domain.bar&path=/bar&admin=USER&language=fr&is_public=1&pass?word=pass&port=666"
-# | arg: -a, --apps=     - apps to install
-#
-# Requires YunoHost version *.*.* or higher.
-ynh_install_apps() {
-	# Declare an array to define the options of this helper.
-	local legacy_args=a
-	local -A args_array=([a]=apps=)
-	local apps
-	# Manage arguments with getopts
-	ynh_handle_getopts_args "$@"
-
-	# Split the list of apps in an array
-	local apps_list=($(echo $apps | tr " " "\n"))
-	local apps_dependencies=""
-	
-	# For each app
-	for one_app_and_its_args in "${apps_list[@]}"
-	do
-		# Retrieve the name of the app (part before ?)
-		local one_app=$(cut -d "?" -f1 <<< "$one_app_and_its_args")
-		[ -z "$one_app" ] && ynh_die --message="You didn't provided a YunoHost app to install"
-
-		yunohost tools update apps
-		
-		# Installing or upgrading the app depending if it's installed or not
-		if ! yunohost app list --output-as json --quiet | jq -e --arg id $one_app '.apps[] | select(.id == $id)' >/dev/null
-		then
-			# Retrieve the arguments of the app (part after ?)
-			local one_argument=""
-			if [[ "$one_app_and_its_args" == *"?"* ]]; then
-				one_argument=$(cut -d "?" -f2- <<< "$one_app_and_its_args")
-				one_argument="--args $one_argument"
-			fi
-			
-			# Install the app with its arguments
-			yunohost app install $one_app $one_argument
-		else
-			# Upgrade the app
-			yunohost app upgrade $one_app
-		fi
-
-		if [ ! -z "$apps_dependencies" ]
-		then
-			apps_dependencies="$apps_dependencies, $one_app"
-		else
-			apps_dependencies="$one_app"
-		fi
-	done
-
-	ynh_app_setting_set --app=$app --key=apps_dependencies --value="$apps_dependencies"
-}
-
-# Remove other YunoHost apps
-#
-# Other YunoHost apps will be removed only if no other apps need them.
-#
-# usage: ynh_remove_apps
-#
-# Requires YunoHost version *.*.* or higher.
-ynh_remove_apps() {
-	# Retrieve the apps dependencies of the app
-	local apps_dependencies=$(ynh_app_setting_get --app=$app --key=apps_dependencies)
-	ynh_app_setting_delete --app=$app --key=apps_dependencies
-
-	if [ ! -z "$apps_dependencies" ]
-	then
-		# Split the list of apps dependencies in an array
-		local apps_dependencies_list=($(echo $apps_dependencies | tr ", " "\n"))
-		
-		# For each apps dependencies
-		for one_app in "${apps_dependencies_list[@]}"
-		do
-			# Retrieve the list of installed apps
-			local installed_apps_list=$(yunohost app list --output-as json --quiet | jq -r .apps[].id)
-			local required_by=""
-			local installed_app_required_by=""
-
-			# For each other installed app
-			for one_installed_app in $installed_apps_list
-			do
-				# Retrieve the other apps dependencies
-				one_installed_apps_dependencies=$(ynh_app_setting_get --app=$one_installed_app --key=apps_dependencies)
-				if [ ! -z "$one_installed_apps_dependencies" ]
-				then
-					one_installed_apps_dependencies_list=($(echo $one_installed_apps_dependencies | tr ", " "\n"))
-
-					# For each dependency of the other apps
-					for one_installed_app_dependency in "${one_installed_apps_dependencies_list[@]}"
-					do
-						if [[ $one_installed_app_dependency == $one_app ]]; then
-							required_by="$required_by $one_installed_app"
-						fi
-					done
-				fi
-			done
-
-			# If $one_app is no more required
-			if [[ -z "$required_by" ]]
-			then
-				# Remove $one_app
-				ynh_print_info --message="Removing of $one_app"
-				yunohost app remove $one_app --purge
-			else
-				ynh_print_info --message="$one_app was not removed because it's still required by${required_by}"
-			fi
-		done
-	fi
-}

helpers/helpers

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# Entrypoint for the helpers scripts
+SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &> /dev/null && pwd)
+
+# Helpers version can be specified via an environment variable or default to 1.
+YNH_HELPERS_VERSION=${YNH_HELPERS_VERSION:-1}
+
+# This is a trick to later only restore set -x if it was set when calling this script
+readonly XTRACE_ENABLE=$(set +o | grep xtrace)
+set +x
+
+YNH_HELPERS_DIR="$SCRIPT_DIR/helpers.v${YNH_HELPERS_VERSION}.d"
+case "$YNH_HELPERS_VERSION" in
+    "1" | "2" | "2.1")
+        readarray -t HELPERS < <(find -L "$YNH_HELPERS_DIR" -mindepth 1 -maxdepth 1 -type f)
+        source $YNH_HELPERS_DIR/getopts
+        for helper in "${HELPERS[@]}"; do
+            [ -r "$helper" ] && source "$helper"
+        done
+        ;;
+    *)
+        echo "Helpers are not available in version '$YNH_HELPERS_VERSION'." >&2
+        exit 1
+        ;;
+esac
+
+eval "$XTRACE_ENABLE"

helpers/helpers.v1.d/apps

@@ -0,0 +1,199 @@
+#!/bin/bash
+
+# Install others YunoHost apps
+#
+# usage: ynh_install_apps --apps="appfoo?domain=domain.foo&path=/foo appbar?domain=domain.bar&path=/bar&admin=USER&language=fr&is_public=1&pass?word=pass&port=666"
+# | arg: -a, --apps=     - apps to install
+#
+# Requires YunoHost version *.*.* or higher.
+ynh_install_apps() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=a
+    local -A args_array=([a]=apps=)
+    local apps
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Split the list of apps in an array
+    local apps_list=($(echo $apps | tr " " "\n"))
+    local apps_dependencies=""
+
+    # For each app
+    for one_app_and_its_args in "${apps_list[@]}"; do
+        # Retrieve the name of the app (part before ?)
+        local one_app=$(cut -d "?" -f1 <<< "$one_app_and_its_args")
+        [ -z "$one_app" ] && ynh_die --message="You didn't provided a YunoHost app to install"
+
+        yunohost tools update apps
+
+        # Installing or upgrading the app depending if it's installed or not
+        if ! yunohost app list --output-as json --quiet | jq -e --arg id $one_app '.apps[] | select(.id == $id)' > /dev/null; then
+            # Retrieve the arguments of the app (part after ?)
+            local one_argument=""
+            if [[ "$one_app_and_its_args" == *"?"* ]]; then
+                one_argument=$(cut -d "?" -f2- <<< "$one_app_and_its_args")
+                one_argument="--args $one_argument"
+            fi
+
+            # Install the app with its arguments
+            yunohost app install $one_app $one_argument
+        else
+            # Upgrade the app
+            yunohost app upgrade $one_app
+        fi
+
+        if [ ! -z "$apps_dependencies" ]; then
+            apps_dependencies="$apps_dependencies, $one_app"
+        else
+            apps_dependencies="$one_app"
+        fi
+    done
+
+    ynh_app_setting_set --app=$app --key=apps_dependencies --value="$apps_dependencies"
+}
+
+# Remove other YunoHost apps
+#
+# Other YunoHost apps will be removed only if no other apps need them.
+#
+# usage: ynh_remove_apps
+#
+# Requires YunoHost version *.*.* or higher.
+ynh_remove_apps() {
+    # Retrieve the apps dependencies of the app
+    local apps_dependencies=$(ynh_app_setting_get --app=$app --key=apps_dependencies)
+    ynh_app_setting_delete --app=$app --key=apps_dependencies
+
+    if [ ! -z "$apps_dependencies" ]; then
+        # Split the list of apps dependencies in an array
+        local apps_dependencies_list=($(echo $apps_dependencies | tr ", " "\n"))
+
+        # For each apps dependencies
+        for one_app in "${apps_dependencies_list[@]}"; do
+            # Retrieve the list of installed apps
+            local installed_apps_list=$(yunohost app list --output-as json --quiet | jq -r .apps[].id)
+            local required_by=""
+            local installed_app_required_by=""
+
+            # For each other installed app
+            for one_installed_app in $installed_apps_list; do
+                # Retrieve the other apps dependencies
+                one_installed_apps_dependencies=$(ynh_app_setting_get --app=$one_installed_app --key=apps_dependencies)
+                if [ ! -z "$one_installed_apps_dependencies" ]; then
+                    one_installed_apps_dependencies_list=($(echo $one_installed_apps_dependencies | tr ", " "\n"))
+
+                    # For each dependency of the other apps
+                    for one_installed_app_dependency in "${one_installed_apps_dependencies_list[@]}"; do
+                        if [[ $one_installed_app_dependency == $one_app ]]; then
+                            required_by="$required_by $one_installed_app"
+                        fi
+                    done
+                fi
+            done
+
+            # If $one_app is no more required
+            if [[ -z "$required_by" ]]; then
+                # Remove $one_app
+                ynh_print_info --message="Removing of $one_app"
+                yunohost app remove $one_app --purge
+            else
+                ynh_print_info --message="$one_app was not removed because it's still required by${required_by}"
+            fi
+        done
+    fi
+}
+
+# Spawn a Bash shell with the app environment loaded
+#
+# usage: ynh_spawn_app_shell --app="app"
+#     | arg: -a, --app=     - the app ID
+#
+# examples:
+#   ynh_spawn_app_shell --app="APP" <<< 'echo "$USER"'
+#   ynh_spawn_app_shell --app="APP" < /tmp/some_script.bash
+#
+# Requires YunoHost version 11.0.* or higher, and that the app relies on packaging v2 or higher.
+# The spawned shell will have environment variables loaded and environment files sourced
+# from the app's service configuration file (defaults to $app.service, overridable by the packager with `service` setting).
+# If the app relies on a specific PHP version, then `php` will be aliased that version. The PHP command will also be appended with the `phpflags` settings.
+ynh_spawn_app_shell() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=a
+    local -A args_array=([a]=app=)
+    local app
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Force Bash to be used to run this helper
+    if [[ ! $0 =~ \/?bash$ ]]; then
+        ynh_print_err --message="Please use Bash as shell"
+        exit 1
+    fi
+
+    # Make sure the app is installed
+    local installed_apps_list=($(yunohost app list --output-as json --quiet | jq -r .apps[].id))
+    if [[ " ${installed_apps_list[*]} " != *" ${app} "* ]]; then
+        ynh_print_err --message="$app is not in the apps list"
+        exit 1
+    fi
+
+    # Make sure the app has its own user
+    if ! id -u "$app" &> /dev/null; then
+        ynh_print_err --message="There is no \"$app\" system user"
+        exit 1
+    fi
+
+    # Make sure the app has an install_dir setting
+    local install_dir=$(ynh_app_setting_get --app=$app --key=install_dir)
+    if [ -z "$install_dir" ]; then
+        ynh_print_err --message="$app has no install_dir setting (does it use packaging format >=2?)"
+        exit 1
+    fi
+
+    # Load the app's service name, or default to $app
+    local service=$(ynh_app_setting_get --app=$app --key=service)
+    [ -z "$service" ] && service=$app
+
+    # Export HOME variable
+    export HOME=$install_dir
+
+    # Load the Environment variables from the app's service
+    local env_var=$(systemctl show $service.service -p "Environment" --value)
+    [ -n "$env_var" ] && export $env_var
+
+    # Force `php` to its intended version
+    # We use `eval`+`export` since `alias` is not propagated to subshells, even with `export`
+    local phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
+    local phpflags=$(ynh_app_setting_get --app=$app --key=phpflags)
+    if [ -n "$phpversion" ]; then
+        eval "php() { php${phpversion} ${phpflags} \"\$@\"; }"
+        export -f php
+    fi
+
+    # Source the EnvironmentFiles from the app's service
+    local env_files=($(systemctl show $service.service -p "EnvironmentFiles" --value))
+    if [ ${#env_files[*]} -gt 0 ]; then
+        # set -/+a enables and disables new variables being automatically exported. Needed when using `source`.
+        set -a
+        for file in ${env_files[*]}; do
+            [[ $file = /* ]] && source $file
+        done
+        set +a
+    fi
+
+    # Activate the Python environment, if it exists
+    if [ -f $install_dir/venv/bin/activate ]; then
+        # set -/+a enables and disables new variables being automatically exported. Needed when using `source`.
+        set -a
+        source $install_dir/venv/bin/activate
+        set +a
+    fi
+
+    # cd into the WorkingDirectory set in the service, or default to the install_dir
+    local env_dir=$(systemctl show $service.service -p "WorkingDirectory" --value)
+    [ -z $env_dir ] && env_dir=$install_dir
+    cd $env_dir
+
+    # Spawn the app shell
+    su -s /bin/bash $app
+}

helpers/helpers.v1.d/apt

@@ -58,7 +58,6 @@ ynh_package_is_installed() {
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
 
-    ynh_wait_dpkg_free
     dpkg-query --show --showformat='${Status}' "$package" 2> /dev/null \
         | grep --count "ok installed" &> /dev/null
 }
@@ -67,6 +66,8 @@ ynh_package_is_installed() {
 #
 # example: version=$(ynh_package_version --package=yunohost)
 #
+# [internal]
+#
 # usage: ynh_package_version --package=name
 # | arg: -p, --package=     - the package name to get version
 # | ret: the version or an empty string
@@ -101,6 +102,8 @@ ynh_apt() {
 
 # Update package index files
 #
+# [internal]
+#
 # usage: ynh_package_update
 #
 # Requires YunoHost version 2.2.4 or higher.
@@ -110,6 +113,8 @@ ynh_package_update() {
 
 # Install package(s)
 #
+# [internal]
+#
 # usage: ynh_package_install name [name [...]]
 # | arg: name - the package name to install
 #
@@ -121,6 +126,8 @@ ynh_package_install() {
 
 # Remove package(s)
 #
+# [internal]
+#
 # usage: ynh_package_remove name [name [...]]
 # | arg: name - the package name to remove
 #
@@ -131,6 +138,8 @@ ynh_package_remove() {
 
 # Remove package(s) and their uneeded dependencies
 #
+# [internal]
+#
 # usage: ynh_package_autoremove name [name [...]]
 # | arg: name - the package name to remove
 #
@@ -141,6 +150,8 @@ ynh_package_autoremove() {
 
 # Purge package(s) and their uneeded dependencies
 #
+# [internal]
+#
 # usage: ynh_package_autopurge name [name [...]]
 # | arg: name - the package name to autoremove and purge
 #
@@ -175,22 +186,25 @@ ynh_package_install_from_equivs() {
 
     # Build and install the package
     local TMPDIR=$(mktemp --directory)
-
-    # Make sure to delete the legacy compat file
-    # It's now handle somewhat magically through the control file
-    rm -f /usr/share/equivs/template/debian/compat
+    mkdir -p ${TMPDIR}/${pkgname}/DEBIAN/
+    # For some reason, dpkg-deb insists for folder perm to be 755 and sometimes it's 777 o_O?
+    chmod -R 755 ${TMPDIR}/${pkgname}
 
     # Note that the cd executes into a sub shell
     # Create a fake deb package with equivs-build and the given control file
     # Install the fake package without its dependencies with dpkg
     # Install missing dependencies with ynh_package_install
     ynh_wait_dpkg_free
-    cp "$controlfile" "${TMPDIR}/control"
-    (
-        cd "$TMPDIR"
-        LC_ALL=C equivs-build ./control 2>&1
-        LC_ALL=C dpkg --force-depends --install "./${pkgname}_${pkgversion}_all.deb" 2>&1 | tee ./dpkg_log
-    )
+
+    cp "$controlfile" "${TMPDIR}/${pkgname}/DEBIAN/control"
+
+    # Install the fake package without its dependencies with dpkg --force-depends
+    if ! LC_ALL=C dpkg-deb --build "${TMPDIR}/${pkgname}" "${TMPDIR}/${pkgname}.deb" > "${TMPDIR}/dpkg_log" 2>&1; then
+        cat "${TMPDIR}/dpkg_log" >&2
+        ynh_die --message="Unable to install dependencies"
+    fi
+    # Don't crash in case of error, because is nicely covered by the following line
+    LC_ALL=C dpkg --force-depends --install "${TMPDIR}/${pkgname}.deb" 2>&1 | tee "${TMPDIR}/dpkg_log" || true
 
     ynh_package_install --fix-broken \
         || { # If the installation failed
@@ -250,10 +264,9 @@ ynh_install_app_dependencies() {
     # Check for specific php dependencies which requires sury
     # This grep will for example return "7.4" if dependencies is "foo bar php7.4-pwet php-gni"
     # The (?<=php) syntax corresponds to lookbehind ;)
-    local specific_php_version=$(echo $dependencies | grep -oP '(?<=php)[0-9.]+(?=-|\>)' | sort -u)
+    local specific_php_version=$(echo $dependencies | grep -oP '(?<=php)[0-9.]+(?=-|\>|)' | sort -u)
 
-    if [[ -n "$specific_php_version" ]]
-    then
+    if [[ -n "$specific_php_version" ]]; then
         # Cover a small edge case where a packager could have specified "php7.4-pwet php5-gni" which is confusing
         [[ $(echo $specific_php_version | wc -l) -eq 1 ]] \
             || ynh_die --message="Inconsistent php versions in dependencies ... found : $specific_php_version"
@@ -267,8 +280,7 @@ ynh_install_app_dependencies() {
             local old_php_fpm_config_dir=$(ynh_app_setting_get --app=$app --key=fpm_config_dir)
             local old_php_finalphpconf="$old_php_fpm_config_dir/pool.d/$app.conf"
 
-            if [[ -f "$old_php_finalphpconf" ]]
-            then
+            if [[ -f "$old_php_finalphpconf" ]]; then
                 ynh_backup_if_checksum_is_different --file="$old_php_finalphpconf"
                 ynh_remove_fpm_config
             fi
@@ -277,7 +289,9 @@ ynh_install_app_dependencies() {
         ynh_app_setting_set --app=$app --key=phpversion --value=$specific_php_version
 
         # Set the default php version back as the default version for php-cli.
+        if test -e /usr/bin/php$YNH_DEFAULT_PHP_VERSION; then
             update-alternatives --set php /usr/bin/php$YNH_DEFAULT_PHP_VERSION
+        fi
     elif grep --quiet 'php' <<< "$dependencies"; then
         ynh_app_setting_set --app=$app --key=phpversion --value=$YNH_DEFAULT_PHP_VERSION
     fi
@@ -289,13 +303,11 @@ ynh_install_app_dependencies() {
     # upgrade script where ynh_install_app_dependencies is called with this
     # expected effect) Otherwise, any subsequent call will add dependencies
     # to those already present in the equivs control file.
-    if [[ $YNH_INSTALL_APP_DEPENDENCIES_REPLACE == "true" ]]
-    then
+    if [[ $YNH_INSTALL_APP_DEPENDENCIES_REPLACE == "true" ]]; then
         YNH_INSTALL_APP_DEPENDENCIES_REPLACE="false"
     else
         local current_dependencies=""
-        if ynh_package_is_installed --package="${dep_app}-ynh-deps"
-        then
+        if ynh_package_is_installed --package="${dep_app}-ynh-deps"; then
             current_dependencies="$(dpkg-query --show --showformat='${Depends}' ${dep_app}-ynh-deps) "
             current_dependencies=${current_dependencies// | /|}
         fi
@@ -307,8 +319,9 @@ Section: misc
 Priority: optional
 Package: ${dep_app}-ynh-deps
 Version: ${version}
-Depends: ${dependencies}
+Depends: ${dependencies//,,/,}
 Architecture: all
+Maintainer: root@localhost
 Description: Fake package for ${app} (YunoHost app) dependencies
  This meta-package is only responsible of installing its dependencies.
 EOF
@@ -319,8 +332,7 @@ EOF
 
     # Trigger postgresql regenconf if we may have just installed postgresql
     local psql_installed2="$(ynh_package_is_installed "postgresql-$PSQL_VERSION" && echo yes || echo no)"
-    if [[ "$psql_installed" != "$psql_installed2" ]]
-    then
+    if [[ "$psql_installed" != "$psql_installed2" ]]; then
         yunohost tools regen-conf postgresql
     fi
 
@@ -328,6 +340,8 @@ EOF
 
 # Add dependencies to install with ynh_install_app_dependencies
 #
+# [packagingv1]
+#
 # usage: ynh_add_app_dependencies --package=phpversion [--replace]
 # | arg: -p, --package=     - Packages to add as dependencies for the app.
 #
@@ -362,12 +376,16 @@ ynh_remove_app_dependencies() {
 
     # Edge case where the app dep may be on hold,
     # cf https://forum.yunohost.org/t/migration-error-cause-of-ffsync/20675/4
-    if apt-mark showhold | grep -q -w ${dep_app}-ynh-deps
-    then
+    if apt-mark showhold | grep -q -w ${dep_app}-ynh-deps; then
         apt-mark unhold ${dep_app}-ynh-deps
     fi
 
-    ynh_package_autopurge ${dep_app}-ynh-deps	# Remove the fake package and its dependencies if they not still used.
+    # Remove the fake package and its dependencies if they not still used.
+    # (except if dpkg doesn't know anything about the package,
+    # which should be symptomatic of a failed install, and we don't want bash to report an error)
+    if dpkg-query --show ${dep_app}-ynh-deps &> /dev/null; then
+        ynh_package_autopurge ${dep_app}-ynh-deps
+    fi
 }
 
 # Install packages from an extra repository properly.
@@ -409,7 +427,7 @@ ynh_install_extra_app_dependencies() {
     [ -z "$apps_auto_installed" ] || apt-mark auto $apps_auto_installed
 
     # Remove this extra repository after packages are installed
-    ynh_remove_extra_repo --name=$app
+    ynh_remove_extra_repo --name=$name
 }
 
 # Add an extra repository correctly, pin it and get the key.
@@ -448,21 +466,31 @@ ynh_install_extra_repo() {
         wget_append="tee"
     fi
 
-    # Split the repository into uri, suite and components.
+    if [[ "$key" == "trusted=yes" ]]; then
+        trusted="--trusted"
+    else
+        trusted=""
+    fi
+
+    IFS=', ' read -r -a repo_parts <<< "$repo"
+    index=0
+
     # Remove "deb " at the beginning of the repo.
-    repo="${repo#deb }"
-
-    # Get the uri
-    local uri="$(echo "$repo" | awk '{ print $1 }')"
-
-    # Get the suite
-    local suite="$(echo "$repo" | awk '{ print $2 }')"
+    if [[ "${repo_parts[0]}" == "deb" ]]; then
+        index=1
+    fi
+    uri="${repo_parts[$index]}"
+    index=$((index + 1))
+    suite="${repo_parts[$index]}"
+    index=$((index + 1))
 
     # Get the components
-    local component="${repo##$uri $suite }"
+    if (("${#repo_parts[@]}" > 0)); then
+        component="${repo_parts[*]:$index}"
+    fi
 
     # Add the repository into sources.list.d
-    ynh_add_repo --uri="$uri" --suite="$suite" --component="$component" --name="$name" $append
+    ynh_add_repo --uri="$uri" --suite="$suite" --component="$component" --name="$name" $append $trusted
 
     # Pin the new repo with the default priority, so it won't be used for upgrades.
     # Build $pin from the uri without http and any sub path
@@ -475,7 +503,7 @@ ynh_install_extra_repo() {
     ynh_pin_repo --package="*" --pin="origin \"$pin\"" $priority --name="$name" $append
 
     # Get the public key for the repo
-    if [ -n "$key" ]; then
+    if [ -n "$key" ] && [[ "$key" != "trusted=yes" ]]; then
         mkdir --parents "/etc/apt/trusted.gpg.d"
         # Timeout option is here to enforce the timeout on dns query and tcp connect (c.f. man wget)
         wget --timeout 900 --quiet "$key" --output-document=- | gpg --dearmor | $wget_append /etc/apt/trusted.gpg.d/$name.gpg > /dev/null
@@ -528,6 +556,7 @@ ynh_remove_extra_repo() {
 # | arg: -c, --component=   - Component of the repository.
 # | arg: -n, --name=        - Name for the files for this repo, $app as default value.
 # | arg: -a, --append       - Do not overwrite existing files.
+# | arg: -t, --trusted      - Add trusted=yes to the repository (not recommended)
 #
 # Example for a repo like deb http://forge.yunohost.org/debian/ stretch stable
 #                             uri                               suite   component
@@ -536,27 +565,34 @@ ynh_remove_extra_repo() {
 # Requires YunoHost version 3.8.1 or higher.
 ynh_add_repo() {
     # Declare an array to define the options of this helper.
-    local legacy_args=uscna
-    local -A args_array=([u]=uri= [s]=suite= [c]=component= [n]=name= [a]=append)
+    local legacy_args=uscnat
+    local -A args_array=([u]=uri= [s]=suite= [c]=component= [n]=name= [a]=append [t]=trusted)
     local uri
     local suite
     local component
     local name
     local append
+    local trusted
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
     name="${name:-$app}"
     append=${append:-0}
+    trusted=${trusted:-0}
 
     if [ $append -eq 1 ]; then
         append="tee --append"
     else
         append="tee"
     fi
+    if [[ "$trusted" -eq 1 ]]; then
+        trust="[trusted=yes]"
+    else
+        trust=""
+    fi
 
     mkdir --parents "/etc/apt/sources.list.d"
     # Add the new repo in sources.list.d
-    echo "deb $uri $suite $component" \
+    echo "deb $trust $uri $suite $component" \
         | $append "/etc/apt/sources.list.d/$name.list"
 }
 

helpers/helpers.v1.d/backup

@@ -289,8 +289,7 @@ ynh_restore_file() {
     # Boring hack for nginx conf file mapped to php7.3
     # Note that there's no need to patch the fpm config because most php apps
     # will call "ynh_add_fpm_config" during restore, effectively recreating the file from scratch
-    if [[ "${dest_path}" == "/etc/nginx/conf.d/"* ]] && grep 'php7.3.*sock' "${dest_path}"
-    then
+    if [[ "${dest_path}" == "/etc/nginx/conf.d/"* ]] && grep 'php7.3.*sock' "${dest_path}"; then
         sed -i 's/php7.3/php7.4/g' "${dest_path}"
     fi
 }
@@ -327,6 +326,13 @@ ynh_store_file_checksum() {
 
     ynh_app_setting_set --app=$app --key=$checksum_setting_name --value=$(md5sum "$file" | cut --delimiter=' ' --fields=1)
 
+    if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
+        # Using a base64 is in fact more reversible than "replace / and space by _" ... So we can in fact obtain the original file path in an easy reliable way ...
+        local file_path_base64=$(echo "$file" | base64 -w0)
+        mkdir -p /var/cache/yunohost/appconfbackup/
+        cat $file > /var/cache/yunohost/appconfbackup/original_${file_path_base64}
+    fi
+
     # If backup_file_checksum isn't empty, ynh_backup_if_checksum_is_different has made a backup
     if [ -n "${backup_file_checksum-}" ]; then
         # Print the diff between the previous file and the new one.
@@ -361,11 +367,19 @@ ynh_backup_if_checksum_is_different() {
     backup_file_checksum=""
     if [ -n "$checksum_value" ]; then                                                     # Proceed only if a value was stored into the app settings
         if [ -e $file ] && ! echo "$checksum_value $file" | md5sum --check --status; then # If the checksum is now different
+
             backup_file_checksum="/var/cache/yunohost/appconfbackup/$file.backup.$(date '+%Y%m%d.%H%M%S')"
             mkdir --parents "$(dirname "$backup_file_checksum")"
             cp --archive "$file" "$backup_file_checksum" # Backup the current file
             ynh_print_warn "File $file has been manually modified since the installation or last upgrade. So it has been duplicated in $backup_file_checksum"
             echo "$backup_file_checksum" # Return the name of the backup file
+            if [ ${PACKAGE_CHECK_EXEC:-0} -eq 1 ]; then
+                local file_path_base64=$(echo "$file" | base64 -w0)
+                if test -e /var/cache/yunohost/appconfbackup/original_${file_path_base64}; then
+                    ynh_print_warn "Diff with the original file:"
+                    diff --report-identical-files --unified --color=always /var/cache/yunohost/appconfbackup/original_${file_path_base64} $file >&2 || true
+                fi
+            fi
         fi
     fi
 }
@@ -401,6 +415,8 @@ ynh_backup_archive_exists() {
 
 # Make a backup in case of failed upgrade
 #
+# [packagingv1]
+#
 # usage: ynh_backup_before_upgrade
 #
 # Usage in a package script:
@@ -449,6 +465,8 @@ ynh_backup_before_upgrade() {
 
 # Restore a previous backup if the upgrade process failed
 #
+# [packagingv1]
+#
 # usage: ynh_restore_upgradebackup
 #
 # Usage in a package script:
@@ -474,8 +492,7 @@ ynh_restore_upgradebackup() {
             yunohost app remove $app
             # Restore the backup
             yunohost backup restore $app_bck-pre-upgrade$backup_number --apps $app --force --debug
-            if [[ -d /etc/yunohost/apps/$app ]]
-            then
+            if [[ -d /etc/yunohost/apps/$app ]]; then
                 ynh_die --message="The app was restored to the way it was before the failed upgrade."
             else
                 ynh_die --message="Uhoh ... Yunohost failed to restore the app to the way it was before the failed upgrade :|"

helpers/helpers.v1.d/composer

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+readonly YNH_DEFAULT_COMPOSER_VERSION=1.10.17
+# Declare the actual composer version to use.
+# A packager willing to use another version of composer can override the variable into its _common.sh.
+YNH_COMPOSER_VERSION=${YNH_COMPOSER_VERSION:-$YNH_DEFAULT_COMPOSER_VERSION}
+
+# Execute a command with Composer
+#
+# usage: ynh_composer_exec [--phpversion=phpversion] [--workdir=$install_dir] --commands="commands"
+# | arg: -v, --phpversion - PHP version to use with composer
+# | arg: -w, --workdir - The directory from where the command will be executed. Default $install_dir or $final_path
+# | arg: -c, --commands - Commands to execute.
+#
+# Requires YunoHost version 4.2 or higher.
+ynh_composer_exec() {
+    local _globalphpversion=${phpversion-:}
+    # Declare an array to define the options of this helper.
+    local legacy_args=vwc
+    declare -Ar args_array=([v]=phpversion= [w]=workdir= [c]=commands=)
+    local phpversion
+    local workdir
+    local commands
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    workdir="${workdir:-${install_dir:-$final_path}}"
+
+    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
+        phpversion="${phpversion:-$YNH_PHP_VERSION}"
+    else
+        phpversion="${phpversion:-$_globalphpversion}"
+    fi
+
+    COMPOSER_HOME="$workdir/.composer" COMPOSER_MEMORY_LIMIT=-1 \
+        php${phpversion} "$workdir/composer.phar" $commands \
+        -d "$workdir" --no-interaction --no-ansi 2>&1
+}
+
+# Install and initialize Composer in the given directory
+#
+# usage: ynh_install_composer [--phpversion=phpversion] [--workdir=$install_dir] [--install_args="--optimize-autoloader"] [--composerversion=composerversion]
+# | arg: -v, --phpversion - PHP version to use with composer
+# | arg: -w, --workdir - The directory from where the command will be executed. Default $install_dir.
+# | arg: -a, --install_args - Additional arguments provided to the composer install. Argument --no-dev already include
+# | arg: -c, --composerversion - Composer version to install
+#
+# Requires YunoHost version 4.2 or higher.
+ynh_install_composer() {
+    local _globalphpversion=${phpversion-:}
+    # Declare an array to define the options of this helper.
+    local legacy_args=vwac
+    declare -Ar args_array=([v]=phpversion= [w]=workdir= [a]=install_args= [c]=composerversion=)
+    local phpversion
+    local workdir
+    local install_args
+    local composerversion
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
+        workdir="${workdir:-$final_path}"
+    else
+        workdir="${workdir:-$install_dir}"
+    fi
+
+    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
+        phpversion="${phpversion:-$YNH_PHP_VERSION}"
+    else
+        phpversion="${phpversion:-$_globalphpversion}"
+    fi
+
+    install_args="${install_args:-}"
+    composerversion="${composerversion:-$YNH_COMPOSER_VERSION}"
+
+    curl -sS https://getcomposer.org/installer \
+        | COMPOSER_HOME="$workdir/.composer" \
+            php${phpversion} -- --quiet --install-dir="$workdir" --version=$composerversion \
+        || ynh_die --message="Unable to install Composer."
+
+    # install dependencies
+    ynh_composer_exec --phpversion="${phpversion}" --workdir="$workdir" --commands="install --no-dev $install_args" \
+        || ynh_die --message="Unable to install core dependencies with Composer."
+}

helpers/helpers.v1.d/config

@@ -22,7 +22,7 @@ _ynh_app_config_get_one() {
         if [[ "$bind" == "settings" ]]; then
             ynh_die --message="File '${short_setting}' can't be stored in settings"
         fi
-        old[$short_setting]="$(ls "$(echo $bind | sed s@__FINALPATH__@$final_path@ | sed s/__APP__/$app/)" 2>/dev/null || echo YNH_NULL)"
+        old[$short_setting]="$(ls "$bind" 2> /dev/null || echo YNH_NULL)"
         file_hash[$short_setting]="true"
 
     # Get multiline text from settings or from a full file
@@ -32,7 +32,7 @@ _ynh_app_config_get_one() {
         elif [[ "$bind" == *":"* ]]; then
             ynh_die --message="For technical reasons, multiline text '${short_setting}' can't be stored automatically  in a variable file, you have to create custom getter/setter"
         else
-            old[$short_setting]="$(cat $(echo $bind | sed s@__FINALPATH__@$final_path@ | sed s/__APP__/$app/) 2>/dev/null || echo YNH_NULL)"
+            old[$short_setting]="$(cat "$bind" 2> /dev/null || echo YNH_NULL)"
         fi
 
     # Get value from a kind of key/value file
@@ -47,7 +47,7 @@ _ynh_app_config_get_one() {
             bind_after="$(echo "${bind_key_}" | cut -d'>' -f1)"
             bind_key_="$(echo "${bind_key_}" | cut -d'>' -f2)"
         fi
-        local bind_file="$(echo "$bind" | cut -d: -f2 | sed s@__FINALPATH__@$final_path@ | sed s/__APP__/$app/)"
+        local bind_file="$(echo "$bind" | cut -d: -f2)"
         old[$short_setting]="$(ynh_read_var_in_file --file="${bind_file}" --key="${bind_key_}" --after="${bind_after}")"
 
     fi
@@ -73,7 +73,7 @@ _ynh_app_config_apply_one() {
             if [[ "$bind" == "settings" ]]; then
                 ynh_die --message="File '${short_setting}' can't be stored in settings"
             fi
-            local bind_file="$(echo "$bind" | sed s@__FINALPATH__@$final_path@ | sed s/__APP__/$app/)"
+            local bind_file="$bind"
             if [[ "${!short_setting}" == "" ]]; then
                 ynh_backup_if_checksum_is_different --file="$bind_file"
                 ynh_secure_remove --file="$bind_file"
@@ -98,7 +98,7 @@ _ynh_app_config_apply_one() {
             if [[ "$bind" == *":"* ]]; then
                 ynh_die --message="For technical reasons, multiline text '${short_setting}' can't be stored automatically  in a variable file, you have to create custom getter/setter"
             fi
-            local bind_file="$(echo "$bind" | sed s@__FINALPATH__@$final_path@ | sed s/__APP__/$app/)"
+            local bind_file="$bind"
             ynh_backup_if_checksum_is_different --file="$bind_file"
             echo "${!short_setting}" > "$bind_file"
             ynh_store_file_checksum --file="$bind_file" --update_only
@@ -108,12 +108,12 @@ _ynh_app_config_apply_one() {
         else
             local bind_after=""
             local bind_key_="$(echo "$bind" | cut -d: -f1)"
-            bind_key_=${bind_key_:-$short_setting}
             if [[ "$bind_key_" == *">"* ]]; then
                 bind_after="$(echo "${bind_key_}" | cut -d'>' -f1)"
                 bind_key_="$(echo "${bind_key_}" | cut -d'>' -f2)"
             fi
-            local bind_file="$(echo "$bind" | cut -d: -f2 | sed s@__FINALPATH__@$final_path@ | sed s/__APP__/$app/)"
+            bind_key_=${bind_key_:-$short_setting}
+            local bind_file="$(echo "$bind" | cut -d: -f2)"
 
             ynh_backup_if_checksum_is_different --file="$bind_file"
             ynh_write_var_in_file --file="${bind_file}" --key="${bind_key_}" --value="${!short_setting}" --after="${bind_after}"
@@ -126,41 +126,17 @@ _ynh_app_config_apply_one() {
         fi
     fi
 }
-_ynh_app_config_get() {
-    # From settings
-    local lines
-    lines=$(
-        python3 <<EOL
-import toml
-from collections import OrderedDict
-with open("../config_panel.toml", "r") as f:
-    file_content = f.read()
-loaded_toml = toml.loads(file_content, _dict=OrderedDict)
 
-for panel_name, panel in loaded_toml.items():
-    if not isinstance(panel, dict): continue
-    for section_name, section in panel.items():
-        if not isinstance(section, dict): continue
-        for name, param in section.items():
-            if not isinstance(param, dict):
-                continue
-            print(';'.join([
-                name,
-                param.get('type', 'string'),
-                param.get('bind', 'settings' if param.get('type', 'string') != 'file' else 'null')
-                ]))
-EOL
-    )
-    for line in $lines; do
+_ynh_app_config_get() {
+    for line in $YNH_APP_CONFIG_PANEL_OPTIONS_TYPES_AND_BINDS; do
         # Split line into short_setting, type and bind
-        IFS=';' read short_setting type bind <<<"$line"
+        IFS='|' read short_setting type bind <<< "$line"
         binds[${short_setting}]="$bind"
         types[${short_setting}]="$type"
         file_hash[${short_setting}]=""
         formats[${short_setting}]=""
         ynh_app_config_get_one $short_setting $type $bind
     done
-
 }
 
 _ynh_app_config_apply() {
@@ -176,8 +152,7 @@ _ynh_app_config_show() {
                 ynh_return "${short_setting}:"
                 ynh_return "$(echo "${old[$short_setting]}" | sed 's/^/  /g')"
             else
-                ynh_return "${short_setting}: "'"'"$(echo "${old[$short_setting]}" | sed 's/"/\\"/g' | sed ':a;N;$!ba;s/\n/\n\n/g')"'"'
-
+                ynh_return "${short_setting}: '$(echo "${old[$short_setting]}" | sed "s/'/''/g" | sed ':a;N;$!ba;s/\n/\n\n/g')'"
             fi
         fi
     done
@@ -323,5 +298,6 @@ ynh_app_config_run() {
             ;;
         *)
             ynh_app_action_run $1
+            ;;
     esac
 }

helpers/helpers.v1.d/fail2ban

@@ -8,8 +8,6 @@
 # | arg: -m, --max_retry= - Maximum number of retries allowed before banning IP address - default: 3
 # | arg: -p, --ports=     - Ports blocked for a banned IP address - default: http,https
 #
-# -----------------------------------------------------------------------------
-#
 # usage 2: ynh_add_fail2ban_config --use_template
 # | arg: -t, --use_template - Use this helper in template mode
 #
@@ -42,9 +40,7 @@
 #     ignoreregex =
 # ```
 #
-# -----------------------------------------------------------------------------
-#
-# Note about the "failregex" option:
+# ##### Note about the "failregex" option:
 #
 # regex to match the password failure messages in the logfile. The host must be
 # matched by a group named "`host`". The tag "`<HOST>`" can be used for standard
@@ -53,8 +49,6 @@
 # You can find some more explainations about how to make a regex here :
 # https://www.fail2ban.org/wiki/index.php/MANUAL_0_8#Filters
 #
-# Note that the logfile need to exist before to call this helper !!
-#
 # To validate your regex you can test with this command:
 # ```
 # fail2ban-regex /var/log/YOUR_LOG_FILE_PATH /etc/fail2ban/filter.d/YOUR_APP.conf
@@ -76,7 +70,7 @@ ynh_add_fail2ban_config() {
     ports=${ports:-http,https}
     use_template="${use_template:-0}"
 
-    if [ $use_template -ne 1 ]; then
+    if [ "$use_template" -ne 1 ]; then
         # Usage 1, no template. Build a config file from scratch.
         test -n "$logpath" || ynh_die --message="ynh_add_fail2ban_config expects a logfile path as first argument and received nothing."
         test -n "$failregex" || ynh_die --message="ynh_add_fail2ban_config expects a failure regex as second argument and received nothing."
@@ -88,7 +82,7 @@ port = __PORTS__
 filter = __APP__
 logpath = __LOGPATH__
 maxretry = __MAX_RETRY__
-" >$YNH_APP_BASEDIR/conf/f2b_jail.conf
+" > "$YNH_APP_BASEDIR/conf/f2b_jail.conf"
 
         echo "
 [INCLUDES]
@@ -96,12 +90,29 @@ before = common.conf
 [Definition]
 failregex = __FAILREGEX__
 ignoreregex =
-" >$YNH_APP_BASEDIR/conf/f2b_filter.conf
+" > "$YNH_APP_BASEDIR/conf/f2b_filter.conf"
     fi
 
     ynh_add_config --template="f2b_jail.conf" --destination="/etc/fail2ban/jail.d/$app.conf"
     ynh_add_config --template="f2b_filter.conf" --destination="/etc/fail2ban/filter.d/$app.conf"
 
+    # if "$logpath" doesn't exist (as if using --use_template argument), assign
+    # "$logpath" using the one in the previously generated fail2ban conf file
+    if [ -z "${logpath:-}" ]; then
+        # the first sed deletes possibles spaces and the second one extract the path
+        logpath=$(grep "^logpath" "/etc/fail2ban/jail.d/$app.conf" | sed "s/ //g" | sed "s/logpath=//g")
+    fi
+
+    # Create the folder and logfile if they doesn't exist,
+    # as fail2ban require an existing logfile before configuration
+    mkdir -p "/var/log/$app"
+    if [ ! -f "$logpath" ]; then
+        touch "$logpath"
+    fi
+    # Make sure log folder's permissions are correct
+    chown -R "$app:$app" "/var/log/$app"
+    chmod -R u=rwX,g=rX,o= "/var/log/$app"
+
     ynh_systemd_action --service_name=fail2ban --action=reload --line_match="(Started|Reloaded) Fail2Ban Service" --log_path=systemd
 
     local fail2ban_error="$(journalctl --no-hostname --unit=fail2ban | tail --lines=50 | grep "WARNING.*$app.*")"

helpers/helpers.v1.d/getopts

@@ -77,9 +77,9 @@ ynh_handle_getopts_args() {
                 # And replace long option (value of the option_flag) by the short option, the option_flag itself
                 # (e.g. for [u]=user, --user will be -u)
                 # Replace long option with = (match the beginning of the argument)
-                arguments[arg]="$(echo "${arguments[arg]}" | sed "s/^--${args_array[$option_flag]}/-${option_flag} /")"
+                arguments[arg]="$(printf '%s\n' "${arguments[arg]}" | sed "s/^--${args_array[$option_flag]}/-${option_flag} /")"
                 # And long option without = (match the whole line)
-                arguments[arg]="$(echo "${arguments[arg]}" | sed "s/^--${args_array[$option_flag]%=}$/-${option_flag} /")"
+                arguments[arg]="$(printf '%s\n' "${arguments[arg]}" | sed "s/^--${args_array[$option_flag]%=}$/-${option_flag} /")"
             done
         done
 

helpers/helpers.v1.d/go

@@ -0,0 +1,236 @@
+#!/bin/bash
+
+ynh_go_try_bash_extension() {
+    if [ -x src/configure ]; then
+        src/configure && make -C src || {
+            ynh_print_info --message="Optional bash extension failed to build, but things will still work normally."
+        }
+    fi
+}
+
+goenv_install_dir="/opt/goenv"
+go_version_path="$goenv_install_dir/versions"
+# goenv_ROOT is the directory of goenv, it needs to be loaded as a environment variable.
+export GOENV_ROOT="$goenv_install_dir"
+
+# Load the version of Go for an app, and set variables.
+#
+# ynh_use_go has to be used in any app scripts before using Go for the first time.
+# This helper will provide alias and variables to use in your scripts.
+#
+# To use gem or Go, use the alias `ynh_gem` and `ynh_go`
+# Those alias will use the correct version installed for the app
+# For example: use `ynh_gem install` instead of `gem install`
+#
+# With `sudo` or `ynh_exec_as`, use instead the fallback variables `$ynh_gem` and `$ynh_go`
+# And propagate $PATH to sudo with $ynh_go_load_path
+# Exemple: `ynh_exec_as $app $ynh_go_load_path $ynh_gem install`
+#
+# $PATH contains the path of the requested version of Go.
+# However, $PATH is duplicated into $go_path to outlast any manipulation of $PATH
+# You can use the variable `$ynh_go_load_path` to quickly load your Go version
+#  in $PATH for an usage into a separate script.
+# Exemple: `$ynh_go_load_path $install_dir/script_that_use_gem.sh`
+#
+#
+# Finally, to start a Go service with the correct version, 2 solutions
+#  Either the app is dependent of Go or gem, but does not called it directly.
+#  In such situation, you need to load PATH
+#    `Environment="__YNH_GO_LOAD_PATH__"`
+#    `ExecStart=__INSTALL_DIR__/my_app`
+#     You will replace __YNH_GO_LOAD_PATH__ with $ynh_go_load_path
+#
+#  Or Go start the app directly, then you don't need to load the PATH variable
+#    `ExecStart=__YNH_GO__ my_app run`
+#     You will replace __YNH_GO__ with $ynh_go
+#
+#
+# one other variable is also available
+#   - $go_path: The absolute path to Go binaries for the chosen version.
+#
+# usage: ynh_use_go
+#
+# Requires YunoHost version 3.2.2 or higher.
+ynh_use_go() {
+    go_version=$(ynh_app_setting_get --app=$app --key=go_version)
+
+    # Get the absolute path of this version of Go
+    go_path="$go_version_path/$go_version/bin"
+
+    # Allow alias to be used into bash script
+    shopt -s expand_aliases
+
+    # Create an alias for the specific version of Go and a variable as fallback
+    ynh_go="$go_path/go"
+    alias ynh_go="$ynh_go"
+
+    # Load the path of this version of Go in $PATH
+    if [[ :$PATH: != *":$go_path"* ]]; then
+        PATH="$go_path:$PATH"
+    fi
+    # Create an alias to easily load the PATH
+    ynh_go_load_path="PATH=$PATH"
+
+    # Sets the local application-specific Go version
+    pushd $install_dir
+    $goenv_install_dir/bin/goenv local $go_version
+    popd
+}
+
+# Install a specific version of Go
+#
+# ynh_install_go will install the version of Go provided as argument by using goenv.
+#
+# This helper creates a /etc/profile.d/goenv.sh that configures PATH environment for goenv
+# for every LOGIN user, hence your user must have a defined shell (as opposed to /usr/sbin/nologin)
+#
+# Don't forget to execute go-dependent command in a login environment
+# (e.g. sudo --login option)
+# When not possible (e.g. in systemd service definition), please use direct path
+# to goenv shims (e.g. $goenv_ROOT/shims/bundle)
+#
+# usage: ynh_install_go --go_version=go_version
+# | arg: -v, --go_version= - Version of go to install.
+#
+# Requires YunoHost version 3.2.2 or higher.
+ynh_install_go() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=v
+    local -A args_array=([v]=go_version=)
+    local go_version
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Load goenv path in PATH
+    local CLEAR_PATH="$goenv_install_dir/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Go prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Move an existing Go binary, to avoid to block goenv
+    test -x /usr/bin/go && mv /usr/bin/go /usr/bin/go_goenv
+
+    # Install or update goenv
+    mkdir -p $goenv_install_dir
+    pushd "$goenv_install_dir"
+    if ! [ -x "$goenv_install_dir/bin/goenv" ]; then
+        ynh_print_info --message="Downloading goenv..."
+        git init -q
+        git remote add origin https://github.com/syndbg/goenv.git
+    else
+        ynh_print_info --message="Updating goenv..."
+    fi
+    git fetch -q --tags --prune origin
+    local git_latest_tag=$(git describe --tags "$(git rev-list --tags --max-count=1)")
+    git checkout -q "$git_latest_tag"
+    ynh_go_try_bash_extension
+    goenv=$goenv_install_dir/bin/goenv
+    popd
+
+    # Install or update xxenv-latest
+    goenv_latest_dir="$goenv_install_dir/plugins/xxenv-latest"
+    mkdir -p "$goenv_latest_dir"
+    pushd "$goenv_latest_dir"
+    if ! [ -x "$goenv_latest_dir/bin/goenv-latest" ]; then
+        ynh_print_info --message="Downloading xxenv-latest..."
+        git init -q
+        git remote add origin https://github.com/momo-lab/xxenv-latest.git
+    else
+        ynh_print_info --message="Updating xxenv-latest..."
+    fi
+    git fetch -q --tags --prune origin
+    local git_latest_tag=$(git describe --tags "$(git rev-list --tags --max-count=1)")
+    git checkout -q "$git_latest_tag"
+    popd
+
+    # Enable caching
+    mkdir -p "${goenv_install_dir}/cache"
+
+    # Create shims directory if needed
+    mkdir -p "${goenv_install_dir}/shims"
+
+    # Restore /usr/local/bin in PATH
+    PATH=$CLEAR_PATH
+
+    # And replace the old Go binary
+    test -x /usr/bin/go_goenv && mv /usr/bin/go_goenv /usr/bin/go
+
+    # Install the requested version of Go
+    local final_go_version=$("$goenv_latest_dir/bin/goenv-latest" --print "$go_version")
+    ynh_print_info --message="Installation of Go-$final_go_version"
+    goenv install --skip-existing "$final_go_version"
+
+    # Store go_version into the config of this app
+    ynh_app_setting_set --app="$app" --key="go_version" --value="$final_go_version"
+
+    # Cleanup Go versions
+    ynh_cleanup_go
+
+    # Set environment for Go users
+    echo "#goenv
+export GOENV_ROOT=$goenv_install_dir
+export PATH=\"$goenv_install_dir/bin:$PATH\"
+eval \"\$(goenv init -)\"
+#goenv" > /etc/profile.d/goenv.sh
+
+    # Load the environment
+    eval "$(goenv init -)"
+}
+
+# Remove the version of Go used by the app.
+#
+# This helper will also cleanup Go versions
+#
+# usage: ynh_remove_go
+ynh_remove_go() {
+    local go_version=$(ynh_app_setting_get --app="$app" --key="go_version")
+
+    # Load goenv path in PATH
+    local CLEAR_PATH="$goenv_install_dir/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Go prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Remove the line for this app
+    ynh_app_setting_delete --app="$app" --key="go_version"
+
+    # Cleanup Go versions
+    ynh_cleanup_go
+}
+
+# Remove no more needed versions of Go used by the app.
+#
+# This helper will check what Go version are no more required,
+# and uninstall them
+# If no app uses Go, goenv will be also removed.
+#
+# usage: ynh_cleanup_go
+ynh_cleanup_go() {
+
+    # List required Go versions
+    local installed_apps=$(yunohost app list --output-as json --quiet | jq -r .apps[].id)
+    local required_go_versions=""
+    for installed_app in $installed_apps; do
+        local installed_app_go_version=$(ynh_app_setting_get --app=$installed_app --key="go_version")
+        if [[ $installed_app_go_version ]]; then
+            required_go_versions="${installed_app_go_version}\n${required_go_versions}"
+        fi
+    done
+
+    # Remove no more needed Go versions
+    local installed_go_versions=$(goenv versions --bare --skip-aliases | grep -Ev '/')
+    for installed_go_version in $installed_go_versions; do
+        if ! $(echo ${required_go_versions} | grep "${installed_go_version}" 1> /dev/null 2>&1); then
+            ynh_print_info --message="Removing of Go-$installed_go_version"
+            $goenv_install_dir/bin/goenv uninstall --force "$installed_go_version"
+        fi
+    done
+
+    # If none Go version is required
+    if [[ ! $required_go_versions ]]; then
+        # Remove goenv environment configuration
+        ynh_print_info --message="Removing of goenv"
+        ynh_secure_remove --file="$goenv_install_dir"
+        ynh_secure_remove --file="/etc/profile.d/goenv.sh"
+    fi
+}

helpers/helpers.v1.d/hardware

@@ -2,6 +2,8 @@
 
 # Get the total or free amount of RAM+swap on the system
 #
+# [packagingv1]
+#
 # usage: ynh_get_ram [--free|--total] [--ignore_swap|--only_swap]
 # | arg: -f, --free         - Count free RAM+swap
 # | arg: -t, --total        - Count total RAM+swap
@@ -63,6 +65,8 @@ ynh_get_ram() {
 
 # Return 0 or 1 depending if the system has a given amount of RAM+swap free or total
 #
+# [packagingv1]
+#
 # usage: ynh_require_ram --required=RAM [--free|--total] [--ignore_swap|--only_swap]
 # | arg: -r, --required=    - The amount to require, in MB
 # | arg: -f, --free         - Count free RAM+swap

helpers/helpers.v1.d/logging

@@ -93,8 +93,7 @@ ynh_exec_err() {
     # Boring legacy handling for when people calls ynh_exec_* wrapping the command in quotes,
     # (because in the past eval was used) ...
     # we detect this by checking that there's no 2nd arg, and $1 contains a space
-    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]
-    then
+    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]; then
         ynh_print_err --message="$(eval $@)"
     else
         # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
@@ -114,8 +113,7 @@ ynh_exec_warn() {
     # Boring legacy handling for when people calls ynh_exec_* wrapping the command in quotes,
     # (because in the past eval was used) ...
     # we detect this by checking that there's no 2nd arg, and $1 contains a space
-    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]
-    then
+    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]; then
         ynh_print_warn --message="$(eval $@)"
     else
         # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
@@ -135,8 +133,7 @@ ynh_exec_warn_less() {
     # Boring legacy handling for when people calls ynh_exec_* wrapping the command in quotes,
     # (because in the past eval was used) ...
     # we detect this by checking that there's no 2nd arg, and $1 contains a space
-    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]
-    then
+    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]; then
         eval $@ 2>&1
     else
         # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
@@ -156,8 +153,7 @@ ynh_exec_quiet() {
     # Boring legacy handling for when people calls ynh_exec_* wrapping the command in quotes,
     # (because in the past eval was used) ...
     # we detect this by checking that there's no 2nd arg, and $1 contains a space
-    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]
-    then
+    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]; then
         eval $@ > /dev/null
     else
         # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
@@ -177,8 +173,7 @@ ynh_exec_fully_quiet() {
     # Boring legacy handling for when people calls ynh_exec_* wrapping the command in quotes,
     # (because in the past eval was used) ...
     # we detect this by checking that there's no 2nd arg, and $1 contains a space
-    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]
-    then
+    if [[ "$#" -eq 1 ]] && [[ "$1" == *" "* ]]; then
         eval $@ > /dev/null 2>&1
     else
         # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
@@ -186,6 +181,26 @@ ynh_exec_fully_quiet() {
     fi
 }
 
+# Execute a command and redirect stderr in /dev/null. Print stderr on error.
+#
+# usage: ynh_exec_and_print_stderr_only_if_error your command and args
+# | arg: command - command to execute
+#
+# Note that you should NOT quote the command but only prefix it with ynh_exec_and_print_stderr_only_if_error
+#
+# Requires YunoHost version 11.2 or higher.
+ynh_exec_and_print_stderr_only_if_error() {
+    logfile="$(mktemp)"
+    rc=0
+    # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
+    "$@" 2> "$logfile" || rc="$?"
+    if ((rc != 0)); then
+        ynh_exec_warn cat "$logfile"
+        ynh_secure_remove "$logfile"
+        return "$rc"
+    fi
+}
+
 # Remove any logs for all the following commands.
 #
 # usage: ynh_print_OFF
@@ -308,8 +323,8 @@ ynh_script_progression() {
     local progression_bar="${progress_string2:0:$effective_progression}${progress_string1:0:$expected_progression}${progress_string0:0:$left_progression}"
 
     local print_exec_time=""
-    if [ $time -eq 1 ]; then
-        print_exec_time=" [$(date +%Hh%Mm,%Ss --date="0 + $exec_time sec")]"
+    if [ $time -eq 1 ] && [ "$exec_time" -gt 10 ]; then
+        print_exec_time=" [$(bc <<< "scale=1; $exec_time / 60") minutes]"
     fi
 
     ynh_print_info "[$progression_bar] > ${message}${print_exec_time}"

helpers/helpers.v1.d/logrotate

@@ -0,0 +1,99 @@
+#!/bin/bash
+
+FIRST_CALL_TO_LOGROTATE="true"
+
+# Use logrotate to manage the logfile
+#
+# usage: ynh_use_logrotate [--logfile=/log/file] [--specific_user=user/group]
+# | arg: -l, --logfile=         - absolute path of logfile
+# | arg: -u, --specific_user=   - run logrotate as the specified user and group. If not specified logrotate is runned as root.
+#
+# If no `--logfile` is provided, `/var/log/$app` will be used as default.
+# `logfile` can point to a directory or a file.
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_use_logrotate() {
+
+    # Stupid patch to ignore legacy --non-append and --nonappend
+    # which was never properly understood and improperly used and kind of bullshit
+    local all_args=(${@})
+    for I in $(seq 0 $(($# - 1))); do
+        if [[ "${all_args[$I]}" == "--non-append" ]] || [[ "${all_args[$I]}" == "--nonappend" ]]; then
+            unset all_args[$I]
+        fi
+    done
+    set -- "${all_args[@]}"
+
+    # Argument parsing
+    local legacy_args=lu
+    local -A args_array=([l]=logfile= [u]=specific_user=)
+    local logfile
+    local specific_user
+    ynh_handle_getopts_args "$@"
+    logfile="${logfile:-}"
+    specific_user="${specific_user:-}"
+
+    set -o noglob
+    if [[ -z "$logfile" ]]; then
+        logfile="/var/log/${app}/*.log"
+    elif [[ "${logfile##*.}" != "log" ]] && [[ "${logfile##*.}" != "txt" ]]; then
+        logfile="$logfile/*.log"
+    fi
+    set +o noglob
+
+    for stuff in $logfile; do
+        mkdir --parents $(dirname "$stuff")
+    done
+
+    local su_directive=""
+    if [[ -n "$specific_user" ]]; then
+        su_directive="su ${specific_user%/*} ${specific_user#*/}"
+    fi
+
+    local tempconf="$(mktemp)"
+    cat << EOF > $tempconf
+$logfile {
+    # Rotate if the logfile exceeds 100Mo
+    size 100M
+    # Keep 12 old log maximum
+    rotate 12
+    # Compress the logs with gzip
+    compress
+    # Compress the log at the next cycle. So keep always 2 non compressed logs
+    delaycompress
+    # Copy and truncate the log to allow to continue write on it. Instead of moving the log.
+    copytruncate
+    # Do not trigger an error if the log is missing
+    missingok
+    # Do not rotate if the log is empty
+    notifempty
+    # Keep old logs in the same dir
+    noolddir
+    $su_directive
+}
+EOF
+
+    if [[ "$FIRST_CALL_TO_LOGROTATE" == "true" ]]; then
+        cat $tempconf > /etc/logrotate.d/$app
+    else
+        cat $tempconf >> /etc/logrotate.d/$app
+    fi
+
+    FIRST_CALL_TO_LOGROTATE="false"
+
+    # Make sure permissions are correct (otherwise the config file could be ignored and the corresponding logs never rotated)
+    chmod 644 "/etc/logrotate.d/$app"
+    mkdir -p "/var/log/$app"
+    chmod 750 "/var/log/$app"
+}
+
+# Remove the app's logrotate config.
+#
+# usage: ynh_remove_logrotate
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_remove_logrotate() {
+    if [ -e "/etc/logrotate.d/$app" ]; then
+        rm "/etc/logrotate.d/$app"
+    fi
+}

helpers/helpers.v1.d/mongodb

@@ -0,0 +1,345 @@
+#!/bin/bash
+
+# Execute a mongo command
+#
+# example: ynh_mongo_exec --command='db.getMongo().getDBNames().indexOf("wekan")'
+# example: ynh_mongo_exec --command="db.getMongo().getDBNames().indexOf(\"wekan\")"
+#
+# usage: ynh_mongo_exec [--user=user] [--password=password] [--authenticationdatabase=authenticationdatabase] [--database=database] [--host=host] [--port=port] --command="command" [--eval]
+# | arg: -u, --user=                        - The user name to connect as
+# | arg: -p, --password=                    - The user password
+# | arg: -d, --authenticationdatabase=      - The authenticationdatabase to connect to
+# | arg: -d, --database=                    - The database to connect to
+# | arg: -h, --host=                        - The host to connect to
+# | arg: -P, --port=                        - The port to connect to
+# | arg: -c, --command=                     - The command to evaluate
+# | arg: -e, --eval                         - Evaluate instead of execute the command.
+#
+#
+ynh_mongo_exec() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=upadhPce
+    local -A args_array=([u]=user= [p]=password= [a]=authenticationdatabase= [d]=database= [h]=host= [P]=port= [c]=command= [e]=eval)
+    local user
+    local password
+    local authenticationdatabase
+    local database
+    local host
+    local port
+    local command
+    local eval
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    user="${user:-}"
+    password="${password:-}"
+    authenticationdatabase="${authenticationdatabase:-}"
+    database="${database:-}"
+    host="${host:-}"
+    port="${port:-}"
+    eval=${eval:-0}
+
+    # If user is provided
+    if [ -n "$user" ]; then
+        user="--username=$user"
+
+        # If password is provided
+        if [ -n "$password" ]; then
+            password="--password=$password"
+        fi
+
+        # If authenticationdatabase is provided
+        if [ -n "$authenticationdatabase" ]; then
+            authenticationdatabase="--authenticationDatabase=$authenticationdatabase"
+        else
+            authenticationdatabase="--authenticationDatabase=admin"
+        fi
+    else
+        password=""
+        authenticationdatabase=""
+    fi
+
+    # If host is provided
+    if [ -n "$host" ]; then
+        host="--host=$host"
+    fi
+
+    # If port is provided
+    if [ -n "$port" ]; then
+        port="--port=$port"
+    fi
+
+    # If eval is not provided
+    if [ $eval -eq 0 ]; then
+        # If database is provided
+        if [ -n "$database" ]; then
+            database="use $database"
+        else
+            database=""
+        fi
+
+        mongosh --quiet --username $user --password $password --authenticationDatabase $authenticationdatabase --host $host --port $port << EOF
+$database
+${command}
+quit()
+EOF
+    else
+        # If database is provided
+        if [ -n "$database" ]; then
+            database="$database"
+        else
+            database=""
+        fi
+
+        mongosh --quiet $database --username $user --password $password --authenticationDatabase $authenticationdatabase --host $host --port $port --eval="$command"
+    fi
+}
+
+# Drop a database
+#
+# [internal]
+#
+# If you intend to drop the database *and* the associated user,
+# consider using ynh_mongo_remove_db instead.
+#
+# usage: ynh_mongo_drop_db --database=database
+# | arg: -d, --database=    - The database name to drop
+#
+#
+ynh_mongo_drop_db() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=([d]=database=)
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    ynh_mongo_exec --database="$database" --command='db.runCommand({dropDatabase: 1})'
+}
+
+# Dump a database
+#
+# example: ynh_mongo_dump_db --database=wekan > ./dump.bson
+#
+# usage: ynh_mongo_dump_db --database=database
+# | arg: -d, --database=    - The database name to dump
+# | ret: the mongodump output
+#
+#
+ynh_mongo_dump_db() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=([d]=database=)
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    mongodump --quiet --db="$database" --archive
+}
+
+# Create a user
+#
+# [internal]
+#
+# usage: ynh_mongo_create_user --db_user=user --db_pwd=pwd --db_name=name
+# | arg: -u, --db_user=     - The user name to create
+# | arg: -p, --db_pwd=      - The password to identify user by
+# | arg: -n, --db_name=     - Name of the database to grant privilegies
+#
+#
+ynh_mongo_create_user() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=unp
+    local -A args_array=([u]=db_user= [n]=db_name= [p]=db_pwd=)
+    local db_user
+    local db_name
+    local db_pwd
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Create the user and set the user as admin of the db
+    ynh_mongo_exec --database="$db_name" --command='db.createUser( { user: "'${db_user}'", pwd: "'${db_pwd}'", roles: [ { role: "readWrite", db: "'${db_name}'" } ] } );'
+
+    # Add clustermonitoring rights
+    ynh_mongo_exec --database="$db_name" --command='db.grantRolesToUser("'${db_user}'",[{ role: "clusterMonitor", db: "admin" }]);'
+}
+
+# Check if a mongo database exists
+#
+# usage: ynh_mongo_database_exists --database=database
+# | arg: -d, --database=    - The database for which to check existence
+# | exit: Return 1 if the database doesn't exist, 0 otherwise
+#
+#
+ynh_mongo_database_exists() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=([d]=database=)
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    if [ $(ynh_mongo_exec --command='db.getMongo().getDBNames().indexOf("'${database}'")' --eval) -lt 0 ]; then
+        return 1
+    else
+        return 0
+    fi
+}
+
+# Restore a database
+#
+# example: ynh_mongo_restore_db --database=wekan < ./dump.bson
+#
+# usage: ynh_mongo_restore_db --database=database
+# | arg: -d, --database=    - The database name to restore
+#
+#
+ynh_mongo_restore_db() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=d
+    local -A args_array=([d]=database=)
+    local database
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    mongorestore --quiet --db="$database" --archive
+}
+
+# Drop a user
+#
+# [internal]
+#
+# usage: ynh_mongo_drop_user --db_user=user --db_name=name
+# | arg: -u, --db_user=     - The user to drop
+# | arg: -n, --db_name=     - Name of the database
+#
+#
+ynh_mongo_drop_user() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=un
+    local -A args_array=([u]=db_user= [n]=db_name=)
+    local db_user
+    local db_name
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    ynh_mongo_exec --database="$db_name" --command='db.dropUser("'$db_user'", {w: "majority", wtimeout: 5000})'
+}
+
+# Create a database, an user and its password. Then store the password in the app's config
+#
+# usage: ynh_mongo_setup_db --db_user=user --db_name=name [--db_pwd=pwd]
+# | arg: -u, --db_user=     - Owner of the database
+# | arg: -n, --db_name=     - Name of the database
+# | arg: -p, --db_pwd=      - Password of the database. If not provided, a password will be generated
+#
+# After executing this helper, the password of the created database will be available in $db_pwd
+# It will also be stored as "mongopwd" into the app settings.
+#
+#
+ynh_mongo_setup_db() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=unp
+    local -A args_array=([u]=db_user= [n]=db_name= [p]=db_pwd=)
+    local db_user
+    local db_name
+    db_pwd=""
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    local new_db_pwd=$(ynh_string_random) # Generate a random password
+    # If $db_pwd is not provided, use new_db_pwd instead for db_pwd
+    db_pwd="${db_pwd:-$new_db_pwd}"
+
+    # Create the user and grant access to the database
+    ynh_mongo_create_user --db_user="$db_user" --db_pwd="$db_pwd" --db_name="$db_name"
+
+    # Store the password in the app's config
+    ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
+}
+
+# Remove a database if it exists, and the associated user
+#
+# usage: ynh_mongo_remove_db --db_user=user --db_name=name
+# | arg: -u, --db_user=     - Owner of the database
+# | arg: -n, --db_name=     - Name of the database
+#
+#
+ynh_mongo_remove_db() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=un
+    local -A args_array=([u]=db_user= [n]=db_name=)
+    local db_user
+    local db_name
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    if ynh_mongo_database_exists --database=$db_name; then # Check if the database exists
+        ynh_mongo_drop_db --database=$db_name              # Remove the database
+    else
+        ynh_print_warn --message="Database $db_name not found"
+    fi
+
+    # Remove mongo user if it exists
+    ynh_mongo_drop_user --db_user=$db_user --db_name=$db_name
+}
+
+# Install MongoDB and integrate MongoDB service in YunoHost
+#
+# usage: ynh_install_mongo [--mongo_version=mongo_version]
+# | arg: -m, --mongo_version=   - Version of MongoDB to install
+#
+#
+ynh_install_mongo() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=m
+    local -A args_array=([m]=mongo_version=)
+    local mongo_version
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    mongo_version="${mongo_version:-$YNH_MONGO_VERSION}"
+
+    ynh_print_info --message="Installing MongoDB Community Edition ..."
+    local mongo_debian_release=$(ynh_get_debian_release)
+
+    if [[ "$(grep '^flags' /proc/cpuinfo | uniq)" != *"avx"* && "$mongo_version" != "4.4" ]]; then
+        ynh_print_warn --message="Installing Mongo 4.4 as $mongo_version is not compatible with your cpu (see https://docs.mongodb.com/manual/administration/production-notes/#x86_64)."
+        mongo_version="4.4"
+    fi
+    if [[ "$mongo_version" == "4.4" ]]; then
+        ynh_print_warn --message="Switched to buster install as Mongo 4.4 is not compatible with $mongo_debian_release."
+        mongo_debian_release=buster
+    fi
+
+    ynh_install_extra_app_dependencies --repo="deb http://repo.mongodb.org/apt/debian $mongo_debian_release/mongodb-org/$mongo_version main" --package="mongodb-org mongodb-org-server mongodb-org-tools mongodb-mongosh" --key="https://www.mongodb.org/static/pgp/server-$mongo_version.asc"
+    mongodb_servicename=mongod
+
+    # Make sure MongoDB is started and enabled
+    systemctl enable $mongodb_servicename --quiet
+    systemctl daemon-reload --quiet
+    ynh_systemd_action --service_name=$mongodb_servicename --action=restart --line_match="aiting for connections" --log_path="/var/log/mongodb/$mongodb_servicename.log"
+
+    # Integrate MongoDB service in YunoHost
+    yunohost service add $mongodb_servicename --description="MongoDB daemon" --log="/var/log/mongodb/$mongodb_servicename.log"
+
+    # Store mongo_version into the config of this app
+    ynh_app_setting_set --app=$app --key=mongo_version --value=$mongo_version
+}
+
+# Remove MongoDB
+# Only remove the MongoDB service integration in YunoHost for now
+# if MongoDB package as been removed
+#
+# usage: ynh_remove_mongo
+#
+#
+ynh_remove_mongo() {
+    # Only remove the mongodb service if it is not installed.
+    if ! ynh_package_is_installed --package="mongodb*"; then
+        ynh_print_info --message="Removing MongoDB service..."
+        mongodb_servicename=mongod
+        # Remove the mongodb service
+        yunohost service remove $mongodb_servicename
+        ynh_secure_remove --file="/var/lib/mongodb"
+        ynh_secure_remove --file="/var/log/mongodb"
+    fi
+}

helpers/helpers.v1.d/multimedia

@@ -44,11 +44,11 @@ ynh_multimedia_build_main_dir() {
 
     ## Application des droits étendus sur le dossier multimedia.
     # Droit d'écriture pour le groupe et le groupe multimedia en acl et droit de lecture pour other:
-    setfacl -RnL -m g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$MEDIA_DIRECTORY"
+    setfacl -RnL -m g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$MEDIA_DIRECTORY" || true
     # Application de la même règle que précédemment, mais par défaut pour les nouveaux fichiers.
-    setfacl -RnL -m d:g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$MEDIA_DIRECTORY"
+    setfacl -RnL -m d:g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$MEDIA_DIRECTORY" || true
     # Réglage du masque par défaut. Qui garantie (en principe...) un droit maximal à rwx. Donc pas de restriction de droits par l'acl.
-    setfacl -RL -m m::rwx "$MEDIA_DIRECTORY"
+    setfacl -RL -m m::rwx "$MEDIA_DIRECTORY" || true
 }
 
 # Add a directory in yunohost.multimedia

helpers/helpers.v1.d/mysql

@@ -133,7 +133,7 @@ ynh_mysql_dump_db() {
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
 
-    mysqldump --single-transaction --skip-dump-date "$database"
+    mysqldump --single-transaction --skip-dump-date --routines "$database"
 }
 
 # Create a user
@@ -152,6 +152,8 @@ ynh_mysql_create_user() {
 
 # Check if a mysql user exists
 #
+# [internal]
+#
 # usage: ynh_mysql_user_exists --user=user
 # | arg: -u, --user=    - the user for which to check existence
 # | ret: 0 if the user exists, 1 otherwise.
@@ -172,6 +174,19 @@ ynh_mysql_user_exists() {
     fi
 }
 
+# Check if a mysql database exists
+#
+# [internal]
+#
+# usage: ynh_mysql_database_exists database
+# | arg: database    - the database for which to check existence
+# | exit: Return 1 if the database doesn't exist, 0 otherwise
+#
+ynh_mysql_database_exists() {
+    local database=$1
+    mysqlshow | grep -qE "^|\s+$database\s+|"
+}
+
 # Drop a user
 #
 # [internal]
@@ -186,6 +201,8 @@ ynh_mysql_drop_user() {
 
 # Create a database, an user and its password. Then store the password in the app's config
 #
+# [packagingv1]
+#
 # usage: ynh_mysql_setup_db --db_user=user --db_name=name [--db_pwd=pwd]
 # | arg: -u, --db_user=     - Owner of the database
 # | arg: -n, --db_name=     - Name of the database
@@ -216,6 +233,8 @@ ynh_mysql_setup_db() {
 
 # Remove a database if it exists, and the associated user
 #
+# [packagingv1]
+#
 # usage: ynh_mysql_remove_db --db_user=user --db_name=name
 # | arg: -u, --db_user=     - Owner of the database
 # | arg: -n, --db_name=     - Name of the database
@@ -230,7 +249,7 @@ ynh_mysql_remove_db() {
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
 
-    if mysqlshow | grep -q "^| $db_name "; then
+    if ynh_mysql_database_exists "$db_name"; then
         ynh_mysql_drop_db $db_name
     else
         ynh_print_warn --message="Database $db_name not found"

helpers/helpers.v1.d/network

@@ -2,6 +2,8 @@
 
 # Find a free port and return it
 #
+# [packagingv1]
+#
 # usage: ynh_find_port --port=begin_port
 # | arg: -p, --port=    - port to start to search
 # | ret: the port number
@@ -26,6 +28,8 @@ ynh_find_port() {
 
 # Test if a port is available
 #
+# [packagingv1]
+#
 # usage: ynh_find_port --port=XYZ
 # | arg: -p, --port=    - port to check
 # | ret: 0 if the port is available, 1 if it is already used by another process.

helpers/helpers.v1.d/nginx

@@ -42,3 +42,23 @@ ynh_remove_nginx_config() {
     ynh_secure_remove --file="/etc/nginx/conf.d/$domain.d/$app.conf"
     ynh_systemd_action --service_name=nginx --action=reload
 }
+
+# Regen the nginx config in a change url context
+#
+# usage: ynh_change_url_nginx_config
+#
+# Requires YunoHost version 11.1.9 or higher.
+ynh_change_url_nginx_config() {
+
+    # Make a backup of the original NGINX config file if manually modified
+    # (nb: this is possibly different from the same instruction called by
+    # ynh_add_config inside ynh_add_nginx_config because the path may have
+    # changed if we're changing the domain too...)
+    local old_nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
+    ynh_backup_if_checksum_is_different --file="$old_nginx_conf_path"
+    ynh_delete_file_checksum --file="$old_nginx_conf_path"
+    ynh_secure_remove --file="$old_nginx_conf_path"
+
+    # Regen the nginx conf
+    ynh_add_nginx_config
+}

helpers/helpers.v1.d/nodejs

@@ -1,32 +1,10 @@
 #!/bin/bash
 
-n_version=9.0.0
-n_checksum=37a987230d1ed0392a83f9c02c1e535a524977c00c64a4adb771ab60237be1c6
 n_install_dir="/opt/node_n"
 node_version_path="$n_install_dir/n/versions/node"
 # N_PREFIX is the directory of n, it needs to be loaded as a environment variable.
 export N_PREFIX="$n_install_dir"
 
-# Install Node version management
-#
-# [internal]
-#
-# usage: ynh_install_n
-#
-# Requires YunoHost version 2.7.12 or higher.
-ynh_install_n() {
-    # Build an app.src for n
-    echo "SOURCE_URL=https://github.com/tj/n/archive/v${n_version}.tar.gz
-SOURCE_SUM=${n_checksum}" >"$YNH_APP_BASEDIR/conf/n.src"
-    # Download and extract n
-    ynh_setup_source --dest_dir="$n_install_dir/git" --source_id=n
-    # Install n
-    (
-        cd "$n_install_dir/git"
-        PREFIX=$N_PREFIX make install 2>&1
-    )
-}
-
 # Load the version of node for an app, and set variables.
 #
 # usage: ynh_use_nodejs
@@ -96,6 +74,8 @@ ynh_use_nodejs() {
     ynh_node_load_PATH="PATH=$node_PATH"
     # Same var but in lower case to be compatible with ynh_replace_vars...
     ynh_node_load_path="PATH=$node_PATH"
+    # Prevent yet another Node and Corepack madness, with Corepack wanting the user to confirm download of Yarn
+    export COREPACK_ENABLE_DOWNLOAD_PROMPT=0
 }
 
 # Install a specific version of nodejs
@@ -103,7 +83,7 @@ ynh_use_nodejs() {
 # ynh_install_nodejs will install the version of node provided as argument by using n.
 #
 # usage: ynh_install_nodejs --nodejs_version=nodejs_version
-# | arg: -n, --nodejs_version=      - Version of node to install. When possible, your should prefer to use major version number (e.g. 8 instead of 8.10.0). The crontab will then handle the update of minor versions when needed.
+# | arg: -n, --nodejs_version=      - Version of node to install. When possible, your should prefer to use major version number (e.g. 8 instead of 8.10.0).
 #
 # `n` (Node version management) uses the `PATH` variable to store the path of the version of node it is going to use.
 # That's how it changes the version
@@ -133,14 +113,10 @@ ynh_install_nodejs() {
     test -x /usr/bin/node && mv /usr/bin/node /usr/bin/node_n
     test -x /usr/bin/npm && mv /usr/bin/npm /usr/bin/npm_n
 
-    # If n is not previously setup, install it
-    if ! $n_install_dir/bin/n --version >/dev/null 2>&1; then
-        ynh_install_n
-    elif dpkg --compare-versions "$($n_install_dir/bin/n --version)" lt $n_version; then
-        ynh_install_n
-    fi
-
-    # Modify the default N_PREFIX in n script
+    # Install (or update if YunoHost vendor/ folder updated since last install) n
+    mkdir -p $n_install_dir/bin/
+    cp "$YNH_HELPERS_DIR/vendor/n/n" $n_install_dir/bin/n
+    # Tweak for n to understand it's installed in $N_PREFIX
     ynh_replace_string --match_string="^N_PREFIX=\${N_PREFIX-.*}$" --replace_string="N_PREFIX=\${N_PREFIX-$N_PREFIX}" --target_file="$n_install_dir/bin/n"
 
     # Restore /usr/local/bin in PATH
@@ -168,14 +144,11 @@ ynh_install_nodejs() {
     fi
 
     # Store the ID of this app and the version of node requested for it
-    echo "$YNH_APP_INSTANCE_NAME:$nodejs_version" | tee --append "$n_install_dir/ynh_app_version"
+    echo "$app:$nodejs_version" | tee --append "$n_install_dir/ynh_app_version"
 
     # Store nodejs_version into the config of this app
     ynh_app_setting_set --app=$app --key=nodejs_version --value=$nodejs_version
 
-    # Build the update script and set the cronjob
-    ynh_cron_upgrade_node
-
     ynh_use_nodejs
 }
 
@@ -192,7 +165,7 @@ ynh_remove_nodejs() {
     nodejs_version=$(ynh_app_setting_get --app=$app --key=nodejs_version)
 
     # Remove the line for this app
-    sed --in-place "/$YNH_APP_INSTANCE_NAME:$nodejs_version/d" "$n_install_dir/ynh_app_version"
+    sed --in-place "/$app:$nodejs_version/d" "$n_install_dir/ynh_app_version"
 
     # If no other app uses this version of nodejs, remove it.
     if ! grep --quiet "$nodejs_version" "$n_install_dir/ynh_app_version"; then
@@ -204,62 +177,5 @@ ynh_remove_nodejs() {
         ynh_secure_remove --file="$n_install_dir"
         ynh_secure_remove --file="/usr/local/n"
         sed --in-place "/N_PREFIX/d" /root/.bashrc
-        rm --force /etc/cron.daily/node_update
     fi
 }
-
-# Set a cron design to update your node versions
-#
-# [internal]
-#
-# This cron will check and update all minor node versions used by your apps.
-#
-# usage: ynh_cron_upgrade_node
-#
-# Requires YunoHost version 2.7.12 or higher.
-ynh_cron_upgrade_node() {
-    # Build the update script
-    cat >"$n_install_dir/node_update.sh" <<EOF
-#!/bin/bash
-
-version_path="$node_version_path"
-n_install_dir="$n_install_dir"
-
-# Log the date
-date
-
-# List all real installed version of node
-all_real_version="\$(find \$version_path/* -maxdepth 0 -type d | sed "s@\$version_path/@@g")"
-
-# Keep only the major version number of each line
-all_real_version=\$(echo "\$all_real_version" | sed 's/\..*\$//')
-
-# Remove double entries
-all_real_version=\$(echo "\$all_real_version" | sort --unique)
-
-# Read each major version
-while read version
-do
-    echo "Update of the version \$version"
-    sudo \$n_install_dir/bin/n \$version
-
-    # Find the last "real" version for this major version of node.
-    real_nodejs_version=\$(find \$version_path/\$version* -maxdepth 0 | sort --version-sort | tail --lines=1)
-    real_nodejs_version=\$(basename \$real_nodejs_version)
-
-    # Update the symbolic link for this version
-    sudo ln --symbolic --force --no-target-directory \$version_path/\$real_nodejs_version \$version_path/\$version
-done <<< "\$(echo "\$all_real_version")"
-EOF
-
-    chmod +x "$n_install_dir/node_update.sh"
-
-    # Build the cronjob
-    cat >"/etc/cron.daily/node_update" <<EOF
-#!/bin/bash
-
-$n_install_dir/node_update.sh >> $n_install_dir/node_update.log
-EOF
-
-    chmod +x "/etc/cron.daily/node_update"
-}

helpers/helpers.v1.d/php

@@ -7,33 +7,44 @@ YNH_PHP_VERSION=${YNH_PHP_VERSION:-$YNH_DEFAULT_PHP_VERSION}
 
 # Create a dedicated PHP-FPM config
 #
-# usage 1: ynh_add_fpm_config [--phpversion=7.X] [--use_template] [--package=packages] [--dedicated_service]
-# | arg: -v, --phpversion=          - Version of PHP to use.
-# | arg: -t, --use_template         - Use this helper in template mode.
-# | arg: -p, --package=             - Additionnal PHP packages to install
-# | arg: -d, --dedicated_service    - Use a dedicated PHP-FPM service instead of the common one.
+# usage: ynh_add_fpm_config
 #
-# -----------------------------------------------------------------------------
+# Case 1 (recommended) : your provided a snippet conf/extra_php-fpm.conf
 #
-# usage 2: ynh_add_fpm_config [--phpversion=7.X] --usage=usage --footprint=footprint [--package=packages] [--dedicated_service]
-# | arg: -v, --phpversion=          - Version of PHP to use.
-# | arg: -f, --footprint=           - Memory footprint of the service (low/medium/high).
+# The actual PHP configuration will be automatically generated,
+# and your extra_php-fpm.conf will be appended (typically contains PHP upload limits)
+#
+# The resulting configuration will be deployed to the appropriate place, /etc/php/$phpversion/fpm/pool.d/$app.conf
+#
+# Performance-related options in the PHP conf, such as :
+# pm.max_children, pm.start_servers, pm.min_spare_servers pm.max_spare_servers
+# are computed from two parameters called "usage" and "footprint" which can be set to low/medium/high. (cf details below)
+#
+# If you wish to tweak those, please initialize the settings `fpm_usage` and `fpm_footprint`
+# *prior* to calling this helper. Otherwise, "low" will be used as a default for both values.
+#
+# Otherwise, if you want the user to have control over these, we encourage to create a config panel
+# (which should ultimately be standardized by the core ...)
+#
+# Case 2 (deprecate) : you provided an entire conf/php-fpm.conf
+#
+# The configuration will be hydrated, replacing __FOOBAR__ placeholders with $foobar values, etc.
+#
+# The resulting configuration will be deployed to the appropriate place, /etc/php/$phpversion/fpm/pool.d/$app.conf
+#
+# ----------------------
+#
+# fpm_footprint: Memory footprint of the service (low/medium/high).
 # low    - Less than 20 MB of RAM by pool.
 # medium - Between 20 MB and 40 MB of RAM by pool.
 # high   - More than 40 MB of RAM by pool.
-# Or specify exactly the footprint, the load of the service as MB by pool instead of having a standard value.
-# To have this value, use the following command and stress the service.
-# watch -n0.5 ps -o user,cmd,%cpu,rss -u APP
+# N      - Or you can specify a quantitative footprint as MB by pool (use watch -n0.5 ps -o user,cmd,%cpu,rss -u APP)
 #
-# | arg: -u, --usage=               - Expected usage of the service (low/medium/high).
+# fpm_usage: Expected usage of the service (low/medium/high).
 # low    - Personal usage, behind the SSO.
 # medium - Low usage, few people or/and publicly accessible.
 # high   - High usage, frequently visited website.
 #
-# | arg: -p, --package=             - Additionnal PHP packages to install for a specific version of PHP
-# | arg: -d, --dedicated_service    - Use a dedicated PHP-FPM service instead of the common one.
-#
-#
 # The footprint of the service will be used to defined the maximum footprint we can allow, which is half the maximum RAM.
 # So it will be used to defined 'pm.max_children'
 # A lower value for the footprint will allow more children for 'pm.max_children'. And so for
@@ -57,11 +68,12 @@ YNH_PHP_VERSION=${YNH_PHP_VERSION:-$YNH_DEFAULT_PHP_VERSION}
 #
 # Requires YunoHost version 4.1.0 or higher.
 ynh_add_fpm_config() {
+    local _globalphpversion=${phpversion-:}
     # Declare an array to define the options of this helper.
-    local legacy_args=vtufpd
-    local -A args_array=([v]=phpversion= [t]=use_template [u]=usage= [f]=footprint= [p]=package= [d]=dedicated_service)
+    local legacy_args=vufpdg
+    local -A args_array=([v]=phpversion= [u]=usage= [f]=footprint= [p]=package= [d]=dedicated_service [g]=group=)
+    local group
     local phpversion
-    local use_template
     local usage
     local footprint
     local package
@@ -69,29 +81,49 @@ ynh_add_fpm_config() {
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
     package=${package:-}
+    group=${group:-}
 
     # The default behaviour is to use the template.
-    use_template="${use_template:-1}"
+    local autogenconf=false
     usage="${usage:-}"
     footprint="${footprint:-}"
-    if [ -n "$usage" ] || [ -n "$footprint" ]; then
-        use_template=0
+    if [ -n "$usage" ] || [ -n "$footprint" ] || [[ -e $YNH_APP_BASEDIR/conf/extra_php-fpm.conf ]]; then
+        autogenconf=true
+
+        # If no usage provided, default to the value existing in setting ... or to low
+        local fpm_usage_in_setting=$(ynh_app_setting_get --app=$app --key=fpm_usage)
+        if [ -z "$usage" ]; then
+            usage=${fpm_usage_in_setting:-low}
+            ynh_app_setting_set --app=$app --key=fpm_usage --value=$usage
+        fi
+
+        # If no footprint provided, default to the value existing in setting ... or to low
+        local fpm_footprint_in_setting=$(ynh_app_setting_get --app=$app --key=fpm_footprint)
+        if [ -z "$footprint" ]; then
+            footprint=${fpm_footprint_in_setting:-low}
+            ynh_app_setting_set --app=$app --key=fpm_footprint --value=$footprint
+        fi
+
     fi
     # Do not use a dedicated service by default
     dedicated_service=${dedicated_service:-0}
 
     # Set the default PHP-FPM version by default
+    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
         phpversion="${phpversion:-$YNH_PHP_VERSION}"
+    else
+        phpversion="${phpversion:-$_globalphpversion}"
+    fi
 
     local old_phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)
 
     # If the PHP version changed, remove the old fpm conf
+    # (NB: This stuff is also handled by the apt helper, which is usually triggered before this helper)
     if [ -n "$old_phpversion" ] && [ "$old_phpversion" != "$phpversion" ]; then
         local old_php_fpm_config_dir=$(ynh_app_setting_get --app=$app --key=fpm_config_dir)
         local old_php_finalphpconf="$old_php_fpm_config_dir/pool.d/$app.conf"
 
-        if [[ -f "$old_php_finalphpconf" ]]
-        then
+        if [[ -f "$old_php_finalphpconf" ]]; then
             ynh_backup_if_checksum_is_different --file="$old_php_finalphpconf"
             ynh_remove_fpm_config
         fi
@@ -100,10 +132,12 @@ ynh_add_fpm_config() {
     # Legacy args (packager should just list their php dependency as regular apt dependencies...
     if [ -n "$package" ]; then
         # Install the additionnal packages from the default repository
+        ynh_print_warn --message "Argument --package of ynh_add_fpm_config is deprecated and to be removed in the future"
         ynh_install_app_dependencies "$package"
     fi
 
     if [ $dedicated_service -eq 1 ]; then
+        ynh_print_warn --message "Argument --dedicated_service of ynh_add_fpm_config is deprecated and to be removed in the future"
         local fpm_service="${app}-phpfpm"
         local fpm_config_dir="/etc/php/$phpversion/dedicated-fpm"
     else
@@ -134,7 +168,7 @@ ynh_add_fpm_config() {
         fi
     fi
 
-    if [ $use_template -eq 1 ]; then
+    if [ $autogenconf == "false" ]; then
         # Usage 1, use the template in conf/php-fpm.conf
         local phpfpm_path="$YNH_APP_BASEDIR/conf/php-fpm.conf"
         # Make sure now that the template indeed exists
@@ -142,21 +176,18 @@ ynh_add_fpm_config() {
     else
         # Usage 2, generate a PHP-FPM config file with ynh_get_scalable_phpfpm
 
-        # Store settings
-        ynh_app_setting_set --app=$app --key=fpm_footprint --value=$footprint
-        ynh_app_setting_set --app=$app --key=fpm_usage --value=$usage
-
         # Define the values to use for the configuration of PHP.
         ynh_get_scalable_phpfpm --usage=$usage --footprint=$footprint
 
+        local phpfpm_group=$([[ -n "$group" ]] && echo "$group" || echo "$app")
         local phpfpm_path="$YNH_APP_BASEDIR/conf/php-fpm.conf"
         echo "
 [__APP__]
 
 user = __APP__
-group = __APP__
+group = __PHPFPM_GROUP__
 
-chdir = __FINALPATH__
+chdir = __INSTALL_DIR__
 
 listen = /var/run/php/php__PHPVERSION__-fpm-__APP__.sock
 listen.owner = www-data
@@ -166,19 +197,19 @@ pm = __PHP_PM__
 pm.max_children = __PHP_MAX_CHILDREN__
 pm.max_requests = 500
 request_terminate_timeout = 1d
-" >$phpfpm_path
+" > "$phpfpm_path"
 
         if [ "$php_pm" = "dynamic" ]; then
             echo "
 pm.start_servers = __PHP_START_SERVERS__
 pm.min_spare_servers = __PHP_MIN_SPARE_SERVERS__
 pm.max_spare_servers = __PHP_MAX_SPARE_SERVERS__
-" >>$phpfpm_path
+" >> "$phpfpm_path"
 
         elif [ "$php_pm" = "ondemand" ]; then
             echo "
 pm.process_idle_timeout = 10s
-" >>$phpfpm_path
+" >> "$phpfpm_path"
         fi
 
         # Concatene the extra config.
@@ -283,7 +314,7 @@ ynh_remove_fpm_config() {
     # If the PHP version used is not the default version for YunoHost
     # The second part with YNH_APP_PURGE is an ugly hack to guess that we're inside the remove script
     # (we don't actually care about its value, we just check its not empty hence it exists)
-    if [ "$phpversion" != "$YNH_DEFAULT_PHP_VERSION" ] && [ -n "${YNH_APP_PURGE:-}" ]; then
+    if [ "$phpversion" != "$YNH_DEFAULT_PHP_VERSION" ] && [ -n "${YNH_APP_PURGE:-}" ] && dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
         # Remove app dependencies ... but ideally should happen via an explicit call from packager
         ynh_remove_app_dependencies
     fi
@@ -466,67 +497,3 @@ ynh_get_scalable_phpfpm() {
         fi
     fi
 }
-
-readonly YNH_DEFAULT_COMPOSER_VERSION=1.10.17
-# Declare the actual composer version to use.
-# A packager willing to use another version of composer can override the variable into its _common.sh.
-YNH_COMPOSER_VERSION=${YNH_COMPOSER_VERSION:-$YNH_DEFAULT_COMPOSER_VERSION}
-
-# Execute a command with Composer
-#
-# usage: ynh_composer_exec [--phpversion=phpversion] [--workdir=$final_path] --commands="commands"
-# | arg: -v, --phpversion - PHP version to use with composer
-# | arg: -w, --workdir - The directory from where the command will be executed. Default $final_path.
-# | arg: -c, --commands - Commands to execute.
-#
-# Requires YunoHost version 4.2 or higher.
-ynh_composer_exec() {
-    # Declare an array to define the options of this helper.
-    local legacy_args=vwc
-    declare -Ar args_array=([v]=phpversion= [w]=workdir= [c]=commands=)
-    local phpversion
-    local workdir
-    local commands
-    # Manage arguments with getopts
-    ynh_handle_getopts_args "$@"
-    workdir="${workdir:-$final_path}"
-    phpversion="${phpversion:-$YNH_PHP_VERSION}"
-
-    COMPOSER_HOME="$workdir/.composer" COMPOSER_MEMORY_LIMIT=-1 \
-        php${phpversion} "$workdir/composer.phar" $commands \
-        -d "$workdir" --no-interaction --no-ansi 2>&1
-}
-
-# Install and initialize Composer in the given directory
-#
-# usage: ynh_install_composer [--phpversion=phpversion] [--workdir=$final_path] [--install_args="--optimize-autoloader"] [--composerversion=composerversion]
-# | arg: -v, --phpversion - PHP version to use with composer
-# | arg: -w, --workdir - The directory from where the command will be executed. Default $final_path.
-# | arg: -a, --install_args - Additional arguments provided to the composer install. Argument --no-dev already include
-# | arg: -c, --composerversion - Composer version to install
-#
-# Requires YunoHost version 4.2 or higher.
-ynh_install_composer() {
-    # Declare an array to define the options of this helper.
-    local legacy_args=vwac
-    declare -Ar args_array=([v]=phpversion= [w]=workdir= [a]=install_args= [c]=composerversion=)
-    local phpversion
-    local workdir
-    local install_args
-    local composerversion
-    # Manage arguments with getopts
-    ynh_handle_getopts_args "$@"
-    workdir="${workdir:-$final_path}"
-    phpversion="${phpversion:-$YNH_PHP_VERSION}"
-    install_args="${install_args:-}"
-    composerversion="${composerversion:-$YNH_COMPOSER_VERSION}"
-
-    curl -sS https://getcomposer.org/installer \
-        | COMPOSER_HOME="$workdir/.composer" \
-            php${phpversion} -- --quiet --install-dir="$workdir" --version=$composerversion \
-        || ynh_die --message="Unable to install Composer."
-
-    # install dependencies
-    ynh_composer_exec --phpversion="${phpversion}" --workdir="$workdir" --commands="install --no-dev $install_args" \
-        || ynh_die --message="Unable to install core dependencies with Composer."
-}

helpers/helpers.v1.d/postgresql

@@ -160,6 +160,8 @@ ynh_psql_create_user() {
 
 # Check if a psql user exists
 #
+# [packagingv1]
+#
 # usage: ynh_psql_user_exists --user=user
 # | arg: -u, --user=    - the user for which to check existence
 # | exit: Return 1 if the user doesn't exist, 0 otherwise
@@ -195,7 +197,12 @@ ynh_psql_database_exists() {
     # Manage arguments with getopts
     ynh_handle_getopts_args "$@"
 
-    if ! sudo --login --user=postgres PGUSER="postgres" PGPASSWORD="$(cat $PSQL_ROOT_PWD_FILE)" psql -tAc "SELECT datname FROM pg_database WHERE datname='$database';" | grep --quiet "$database"; then
+    # if psql is not there, we cannot check the db
+    # though it could exists.
+    if ! command -v psql; then
+        ynh_print_err -m "PostgreSQL is not installed, impossible to check for db existence."
+        return 1
+    elif ! sudo --login --user=postgres PGUSER="postgres" PGPASSWORD="$(cat $PSQL_ROOT_PWD_FILE)" psql -tAc "SELECT datname FROM pg_database WHERE datname='$database';" | grep --quiet "$database"; then
         return 1
     else
         return 0
@@ -216,6 +223,8 @@ ynh_psql_drop_user() {
 
 # Create a database, an user and its password. Then store the password in the app's config
 #
+# [packagingv1]
+#
 # usage: ynh_psql_setup_db --db_user=user --db_name=name [--db_pwd=pwd]
 # | arg: -u, --db_user=     - Owner of the database
 # | arg: -n, --db_name=     - Name of the database
@@ -251,6 +260,8 @@ ynh_psql_setup_db() {
 
 # Remove a database if it exists, and the associated user
 #
+# [packagingv1]
+#
 # usage: ynh_psql_remove_db --db_user=user --db_name=name
 # | arg: -u, --db_user=     - Owner of the database
 # | arg: -n, --db_name=     - Name of the database

helpers/helpers.v1.d/redis

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# get the first available redis database
+#
+# usage: ynh_redis_get_free_db
+# | returns: the database number to use
+ynh_redis_get_free_db() {
+    local result max db
+    result=$(redis-cli INFO keyspace)
+
+    # get the num
+    max=$(cat /etc/redis/redis.conf | grep ^databases | grep -Eow "[0-9]+")
+
+    db=0
+    # default Debian setting is 15 databases
+    for i in $(seq 0 "$max"); do
+        if ! echo "$result" | grep -q "db$i"; then
+            db=$i
+            break 1
+        fi
+        db=-1
+    done
+
+    test "$db" -eq -1 && ynh_die --message="No available Redis databases..."
+
+    echo "$db"
+}
+
+# Create a master password and set up global settings
+# Please always call this script in install and restore scripts
+#
+# usage: ynh_redis_remove_db database
+# | arg: database - the database to erase
+ynh_redis_remove_db() {
+    local db=$1
+    redis-cli -n "$db" flushdb
+}

helpers/helpers.v1.d/ruby

@@ -0,0 +1,300 @@
+#!/bin/bash
+
+rbenv_install_dir="/opt/rbenv"
+ruby_version_path="$rbenv_install_dir/versions"
+
+# RBENV_ROOT is the directory of rbenv, it needs to be loaded as a environment variable.
+export RBENV_ROOT="$rbenv_install_dir"
+export rbenv_root="$rbenv_install_dir"
+
+if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2; then
+    build_ruby_dependencies="libjemalloc-dev curl build-essential libreadline-dev zlib1g-dev libsqlite3-dev libssl-dev libxml2-dev libxslt-dev autoconf automake bison libtool"
+    build_pkg_dependencies="${build_pkg_dependencies:-} $build_ruby_dependencies"
+fi
+
+# Load the version of Ruby for an app, and set variables.
+#
+# ynh_use_ruby has to be used in any app scripts before using Ruby for the first time.
+# This helper will provide alias and variables to use in your scripts.
+#
+# To use gem or Ruby, use the alias `ynh_gem` and `ynh_ruby`
+# Those alias will use the correct version installed for the app
+# For example: use `ynh_gem install` instead of `gem install`
+#
+# With `sudo` or `ynh_exec_as`, use instead the fallback variables `$ynh_gem` and `$ynh_ruby`
+# And propagate $PATH to sudo with $ynh_ruby_load_path
+# Exemple: `ynh_exec_as $app $ynh_ruby_load_path $ynh_gem install`
+#
+# $PATH contains the path of the requested version of Ruby.
+# However, $PATH is duplicated into $ruby_path to outlast any manipulation of $PATH
+# You can use the variable `$ynh_ruby_load_path` to quickly load your Ruby version
+#  in $PATH for an usage into a separate script.
+# Exemple: $ynh_ruby_load_path $final_path/script_that_use_gem.sh`
+#
+#
+# Finally, to start a Ruby service with the correct version, 2 solutions
+#  Either the app is dependent of Ruby or gem, but does not called it directly.
+#  In such situation, you need to load PATH
+#    `Environment="__YNH_RUBY_LOAD_PATH__"`
+#    `ExecStart=__FINALPATH__/my_app`
+#     You will replace __YNH_RUBY_LOAD_PATH__ with $ynh_ruby_load_path
+#
+#  Or Ruby start the app directly, then you don't need to load the PATH variable
+#    `ExecStart=__YNH_RUBY__ my_app run`
+#     You will replace __YNH_RUBY__ with $ynh_ruby
+#
+#
+# one other variable is also available
+#   - $ruby_path: The absolute path to Ruby binaries for the chosen version.
+#
+# usage: ynh_use_ruby
+#
+# Requires YunoHost version 3.2.2 or higher.
+ynh_use_ruby() {
+    ruby_version=$(ynh_app_setting_get --app=$app --key=ruby_version)
+
+    # Get the absolute path of this version of Ruby
+    ruby_path="$ruby_version_path/$app/bin"
+
+    # Allow alias to be used into bash script
+    shopt -s expand_aliases
+
+    # Create an alias for the specific version of Ruby and a variable as fallback
+    ynh_ruby="$ruby_path/ruby"
+    alias ynh_ruby="$ynh_ruby"
+    # And gem
+    ynh_gem="$ruby_path/gem"
+    alias ynh_gem="$ynh_gem"
+
+    # Load the path of this version of Ruby in $PATH
+    if [[ :$PATH: != *":$ruby_path"* ]]; then
+        PATH="$ruby_path:$PATH"
+    fi
+    # Create an alias to easily load the PATH
+    ynh_ruby_load_path="PATH=$PATH"
+
+    # Sets the local application-specific Ruby version
+    pushd ${install_dir:-$final_path}
+    $rbenv_install_dir/bin/rbenv local $ruby_version
+    popd
+}
+
+# Install a specific version of Ruby
+#
+# ynh_install_ruby will install the version of Ruby provided as argument by using rbenv.
+#
+# This helper creates a /etc/profile.d/rbenv.sh that configures PATH environment for rbenv
+# for every LOGIN user, hence your user must have a defined shell (as opposed to /usr/sbin/nologin)
+#
+# Don't forget to execute ruby-dependent command in a login environment
+# (e.g. sudo --login option)
+# When not possible (e.g. in systemd service definition), please use direct path
+# to rbenv shims (e.g. $RBENV_ROOT/shims/bundle)
+#
+# usage: ynh_install_ruby --ruby_version=ruby_version
+# | arg: -v, --ruby_version= - Version of ruby to install.
+#
+# Requires YunoHost version 3.2.2 or higher.
+ynh_install_ruby() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=v
+    local -A args_array=([v]=ruby_version=)
+    local ruby_version
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Load rbenv path in PATH
+    local CLEAR_PATH="$rbenv_install_dir/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Ruby prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Move an existing Ruby binary, to avoid to block rbenv
+    test -x /usr/bin/ruby && mv /usr/bin/ruby /usr/bin/ruby_rbenv
+
+    # Install or update rbenv
+    mkdir -p $rbenv_install_dir
+    rbenv="$(command -v rbenv $rbenv_install_dir/bin/rbenv | grep "$rbenv_install_dir/bin/rbenv" | head -1)"
+    if [ -n "$rbenv" ]; then
+        pushd "${rbenv%/*/*}"
+        if git remote -v 2> /dev/null | grep "https://github.com/rbenv/rbenv.git"; then
+            ynh_print_info --message="Updating rbenv..."
+            git pull -q --tags origin master
+            ynh_ruby_try_bash_extension
+        else
+            ynh_print_info --message="Reinstalling rbenv..."
+            cd ..
+            ynh_secure_remove --file=$rbenv_install_dir
+            mkdir -p $rbenv_install_dir
+            cd $rbenv_install_dir
+            git init -q
+            git remote add -f -t master origin https://github.com/rbenv/rbenv.git > /dev/null 2>&1
+            git checkout -q -b master origin/master
+            ynh_ruby_try_bash_extension
+            rbenv=$rbenv_install_dir/bin/rbenv
+        fi
+        popd
+    else
+        ynh_print_info --message="Installing rbenv..."
+        pushd $rbenv_install_dir
+        git init -q
+        git remote add -f -t master origin https://github.com/rbenv/rbenv.git > /dev/null 2>&1
+        git checkout -q -b master origin/master
+        ynh_ruby_try_bash_extension
+        rbenv=$rbenv_install_dir/bin/rbenv
+        popd
+    fi
+
+    mkdir -p "${rbenv_install_dir}/plugins"
+
+    ruby_build="$(command -v "$rbenv_install_dir"/plugins/*/bin/rbenv-install rbenv-install | head -1)"
+    if [ -n "$ruby_build" ]; then
+        pushd "${ruby_build%/*/*}"
+        if git remote -v 2> /dev/null | grep "https://github.com/rbenv/ruby-build.git"; then
+            ynh_print_info --message="Updating ruby-build..."
+            git pull -q origin master
+        fi
+        popd
+    else
+        ynh_print_info --message="Installing ruby-build..."
+        git clone -q https://github.com/rbenv/ruby-build.git "${rbenv_install_dir}/plugins/ruby-build"
+    fi
+
+    rbenv_alias="$(command -v "$rbenv_install_dir"/plugins/*/bin/rbenv-alias rbenv-alias | head -1)"
+    if [ -n "$rbenv_alias" ]; then
+        pushd "${rbenv_alias%/*/*}"
+        if git remote -v 2> /dev/null | grep "https://github.com/tpope/rbenv-aliases.git"; then
+            ynh_print_info --message="Updating rbenv-aliases..."
+            git pull -q origin master
+        fi
+        popd
+    else
+        ynh_print_info --message="Installing rbenv-aliases..."
+        git clone -q https://github.com/tpope/rbenv-aliases.git "${rbenv_install_dir}/plugins/rbenv-aliase"
+    fi
+
+    rbenv_latest="$(command -v "$rbenv_install_dir"/plugins/*/bin/rbenv-latest rbenv-latest | head -1)"
+    if [ -n "$rbenv_latest" ]; then
+        pushd "${rbenv_latest%/*/*}"
+        if git remote -v 2> /dev/null | grep "https://github.com/momo-lab/xxenv-latest.git"; then
+            ynh_print_info --message="Updating xxenv-latest..."
+            git pull -q origin master
+        fi
+        popd
+    else
+        ynh_print_info --message="Installing xxenv-latest..."
+        git clone -q https://github.com/momo-lab/xxenv-latest.git "${rbenv_install_dir}/plugins/xxenv-latest"
+    fi
+
+    # Enable caching
+    mkdir -p "${rbenv_install_dir}/cache"
+
+    # Create shims directory if needed
+    mkdir -p "${rbenv_install_dir}/shims"
+
+    # Restore /usr/local/bin in PATH
+    PATH=$CLEAR_PATH
+
+    # And replace the old Ruby binary
+    test -x /usr/bin/ruby_rbenv && mv /usr/bin/ruby_rbenv /usr/bin/ruby
+
+    # Install the requested version of Ruby
+    local final_ruby_version=$(rbenv latest --print $ruby_version)
+    if ! [ -n "$final_ruby_version" ]; then
+        final_ruby_version=$ruby_version
+    fi
+    ynh_print_info --message="Installing Ruby $final_ruby_version"
+    RUBY_CONFIGURE_OPTS="--disable-install-doc --with-jemalloc" MAKE_OPTS="-j2" rbenv install --skip-existing $final_ruby_version > /dev/null 2>&1
+
+    # Store ruby_version into the config of this app
+    ynh_app_setting_set --app=$app --key=ruby_version --value=$final_ruby_version
+
+    # Remove app virtualenv
+    if rbenv alias --list | grep --quiet "$app "; then
+        rbenv alias $app --remove
+    fi
+
+    # Create app virtualenv
+    rbenv alias $app $final_ruby_version
+
+    # Cleanup Ruby versions
+    ynh_cleanup_ruby
+
+    # Set environment for Ruby users
+    echo "#rbenv
+export RBENV_ROOT=$rbenv_install_dir
+export PATH=\"$rbenv_install_dir/bin:$PATH\"
+eval \"\$(rbenv init -)\"
+#rbenv" > /etc/profile.d/rbenv.sh
+
+    # Load the environment
+    eval "$(rbenv init -)"
+}
+
+# Remove the version of Ruby used by the app.
+#
+# This helper will also cleanup Ruby versions
+#
+# usage: ynh_remove_ruby
+ynh_remove_ruby() {
+    local ruby_version=$(ynh_app_setting_get --app=$app --key=ruby_version)
+
+    # Load rbenv path in PATH
+    local CLEAR_PATH="$rbenv_install_dir/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Ruby prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    rbenv alias $app --remove
+
+    # Remove the line for this app
+    ynh_app_setting_delete --app=$app --key=ruby_version
+
+    # Cleanup Ruby versions
+    ynh_cleanup_ruby
+}
+
+# Remove no more needed versions of Ruby used by the app.
+#
+# This helper will check what Ruby version are no more required,
+# and uninstall them
+# If no app uses Ruby, rbenv will be also removed.
+#
+# usage: ynh_cleanup_ruby
+ynh_cleanup_ruby() {
+
+    # List required Ruby versions
+    local installed_apps=$(yunohost app list | grep -oP 'id: \K.*$')
+    local required_ruby_versions=""
+    for installed_app in $installed_apps; do
+        local installed_app_ruby_version=$(ynh_app_setting_get --app=$installed_app --key="ruby_version")
+        if [[ -n "$installed_app_ruby_version" ]]; then
+            required_ruby_versions="${installed_app_ruby_version}\n${required_ruby_versions}"
+        fi
+    done
+
+    # Remove no more needed Ruby versions
+    local installed_ruby_versions=$(rbenv versions --bare --skip-aliases | grep -Ev '/')
+    for installed_ruby_version in $installed_ruby_versions; do
+        if ! echo ${required_ruby_versions} | grep -q "${installed_ruby_version}"; then
+            ynh_print_info --message="Removing Ruby-$installed_ruby_version"
+            $rbenv_install_dir/bin/rbenv uninstall --force $installed_ruby_version
+        fi
+    done
+
+    # If none Ruby version is required
+    if [[ -z "$required_ruby_versions" ]]; then
+        # Remove rbenv environment configuration
+        ynh_print_info --message="Removing rbenv"
+        ynh_secure_remove --file="$rbenv_install_dir"
+        ynh_secure_remove --file="/etc/profile.d/rbenv.sh"
+    fi
+}
+
+ynh_ruby_try_bash_extension() {
+    if [ -x src/configure ]; then
+        src/configure && make -C src || {
+            ynh_print_info --message="Optional bash extension failed to build, but things will still work normally."
+        }
+    fi
+}

helpers/helpers.v1.d/setting

@@ -52,6 +52,42 @@ ynh_app_setting_set() {
     fi
 }
 
+# Set an application setting but only if the "$key" variable ain't set yet
+#
+# Note that it doesn't just define the setting but ALSO define the $foobar variable
+#
+# Hence it's meant as a replacement for this legacy overly complex syntax:
+#
+# if [ -z "${foo:-}" ]
+# then
+#     foo="bar"
+#     ynh_app_setting_set --key="foo" --value="$foo"
+# fi
+#
+# usage: ynh_app_setting_set_default --app=app --key=key --value=value
+# | arg: -a, --app=     - the application id
+# | arg: -k, --key=     - the setting name to set
+# | arg: -v, --value=   - the default setting value to set
+#
+# Requires YunoHost version 11.1.16 or higher.
+ynh_app_setting_set_default() {
+    local _globalapp=${app-:}
+    # Declare an array to define the options of this helper.
+    local legacy_args=akv
+    local -A args_array=([a]=app= [k]=key= [v]=value=)
+    local app
+    local key
+    local value
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    app="${app:-$_globalapp}"
+
+    if [ -z "${!key:-}" ]; then
+        eval $key=\$value
+        ynh_app_setting "set" "$app" "$key" "$value"
+    fi
+}
+
 # Delete an application setting
 #
 # usage: ynh_app_setting_delete --app=app --key=key
@@ -113,6 +149,8 @@ EOF
 
 # Check availability of a web path
 #
+# [packagingv1]
+#
 # usage: ynh_webpath_available --domain=domain --path_url=path
 # | arg: -d, --domain=      - the domain/host of the url
 # | arg: -p, --path_url=    - the web path to check the availability of
@@ -134,6 +172,8 @@ ynh_webpath_available() {
 
 # Register/book a web path for an app
 #
+# [packagingv1]
+#
 # usage: ynh_webpath_register --app=app --domain=domain --path_url=path
 # | arg: -a, --app=         - the app for which the domain should be registered
 # | arg: -d, --domain=      - the domain/host of the web path

helpers/helpers.v1.d/sources

@@ -0,0 +1,286 @@
+#!/bin/bash
+
+# Download, check integrity, uncompress and patch the source from app.src
+#
+# usage: ynh_setup_source --dest_dir=dest_dir [--source_id=source_id] [--keep="file1 file2"] [--full_replace]
+# | arg: -d, --dest_dir=     - Directory where to setup sources
+# | arg: -s, --source_id=    - Name of the source, defaults to `main` (when the sources resource exists in manifest.toml) or (legacy) `app` otherwise
+# | arg: -k, --keep=         - Space-separated list of files/folders that will be backup/restored in $dest_dir, such as a config file you don't want to overwrite. For example 'conf.json secrets.json logs' (no trailing `/` for folders)
+# | arg: -r, --full_replace= - Remove previous sources before installing new sources  (can be 1 or 0, default to 0)
+#
+# ##### New 'sources' resources
+#
+# (See also the resources documentation which may be more complete?)
+#
+# This helper will read infos from the 'sources' resources in the manifest.toml of the app
+# and expect a structure like:
+#
+# ```toml
+# [resources.sources]
+#     [resources.sources.main]
+#     url = "https://some.address.to/download/the/app/archive"
+#     sha256 = "0123456789abcdef"    # The sha256 sum of the asset obtained from the URL
+# ```
+#
+# ##### Optional flags
+#
+# ```text
+# format    = "tar.gz"/xz/bz2    # automatically guessed from the extension of the URL, but can be set explicitly. Will use `tar` to extract
+#             "zip"              # automatically guessed from the extension of the URL, but can be set explicitly. Will use `unzip` to extract
+#             "docker"           # useful to extract files from an already-built docker image (instead of rebuilding them locally). Will use `docker-image-extract` to extract
+#             "whatever"         # an arbitrary value, not really meaningful except to imply that the file won't be extracted
+#
+# in_subdir = true    # default, there's an intermediate subdir in the archive before accessing the actual files
+#             false   # sources are directly in the archive root
+#             n       # (special cases) an integer representing a number of subdirs levels to get rid of
+#
+# extract   = true    # default if file is indeed an archive such as .zip, .tar.gz, .tar.bz2, ...
+#           = false   # default if file 'format' is not set and the file is not to be extracted because it is not an archive but a script or binary or whatever asset.
+#                     #    in which case the file will only be `mv`ed to the location possibly renamed using the `rename` value
+#
+# rename    = "whatever_your_want"   # to be used for convenience when `extract` is false and the default name of the file is not practical
+# platform  = "linux/amd64"          # (defaults to "linux/$YNH_ARCH") to be used in conjonction with `format = "docker"` to specify which architecture to extract for
+# ```
+#
+# You may also define assets url and checksum per-architectures such as:
+# ```toml
+# [resources.sources]
+#     [resources.sources.main]
+#     amd64.url = "https://some.address.to/download/the/app/archive/when/amd64"
+#     amd64.sha256 = "0123456789abcdef"
+#     armhf.url = "https://some.address.to/download/the/app/archive/when/armhf"
+#     armhf.sha256 = "fedcba9876543210"
+# ```
+#
+# In which case `ynh_setup_source --dest_dir="$install_dir"` will automatically pick the appropriate source depending on the arch
+#
+# The helper will:
+# - Download the specific URL if there is no local archive
+# - Check the integrity with the specific sha256 sum
+# - Uncompress the archive to `$dest_dir`.
+#   - If `in_subdir` is true, the first level directory of the archive will be removed.
+#   - If `in_subdir` is a numeric value, the N first level directories will be removed.
+# - Patches named `sources/patches/${src_id}-*.patch` will be applied to `$dest_dir`
+# - Extra files in `sources/extra_files/$src_id` will be copied to dest_dir
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_setup_source() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=dsk
+    local -A args_array=([d]=dest_dir= [s]=source_id= [k]=keep= [r]=full_replace=)
+    local dest_dir
+    local source_id
+    local keep
+    local full_replace
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    keep="${keep:-}"
+    full_replace="${full_replace:-0}"
+
+    if test -e $YNH_APP_BASEDIR/manifest.toml && cat $YNH_APP_BASEDIR/manifest.toml | toml_to_json | jq -e '.resources.sources' > /dev/null; then
+        source_id="${source_id:-main}"
+        local sources_json=$(cat $YNH_APP_BASEDIR/manifest.toml | toml_to_json | jq ".resources.sources[\"$source_id\"]")
+        if jq -re ".url" <<< "$sources_json"; then
+            local arch_prefix=""
+        else
+            local arch_prefix=".$YNH_ARCH"
+        fi
+
+        local src_url="$(jq -r "$arch_prefix.url" <<< "$sources_json" | sed 's/^null$//')"
+        local src_sum="$(jq -r "$arch_prefix.sha256" <<< "$sources_json" | sed 's/^null$//')"
+        local src_sumprg="sha256sum"
+        local src_format="$(jq -r ".format" <<< "$sources_json" | sed 's/^null$//')"
+        local src_in_subdir="$(jq -r ".in_subdir" <<< "$sources_json" | sed 's/^null$//')"
+        local src_extract="$(jq -r ".extract" <<< "$sources_json" | sed 's/^null$//')"
+        local src_platform="$(jq -r ".platform" <<< "$sources_json" | sed 's/^null$//')"
+        local src_rename="$(jq -r ".rename" <<< "$sources_json" | sed 's/^null$//')"
+
+        [[ -n "$src_url" ]] || ynh_die "No URL defined for source $source_id$arch_prefix ?"
+        [[ -n "$src_sum" ]] || ynh_die "No sha256 sum defined for source $source_id$arch_prefix ?"
+
+        if [[ -z "$src_format" ]]; then
+            if [[ "$src_url" =~ ^.*\.zip$ ]] || [[ "$src_url" =~ ^.*/zipball/.*$ ]]; then
+                src_format="zip"
+            elif [[ "$src_url" =~ ^.*\.tar\.gz$ ]] || [[ "$src_url" =~ ^.*\.tgz$ ]] || [[ "$src_url" =~ ^.*/tar\.gz/.*$ ]] || [[ "$src_url" =~ ^.*/tarball/.*$ ]]; then
+                src_format="tar.gz"
+            elif [[ "$src_url" =~ ^.*\.tar\.xz$ ]]; then
+                src_format="tar.xz"
+            elif [[ "$src_url" =~ ^.*\.tar\.bz2$ ]]; then
+                src_format="tar.bz2"
+            elif [[ -z "$src_extract" ]]; then
+                src_extract="false"
+            fi
+        fi
+    else
+        source_id="${source_id:-app}"
+        local src_file_path="$YNH_APP_BASEDIR/conf/${source_id}.src"
+
+        # Load value from configuration file (see above for a small doc about this file
+        # format)
+        local src_url=$(grep 'SOURCE_URL=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_sum=$(grep 'SOURCE_SUM=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_sumprg=$(grep 'SOURCE_SUM_PRG=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_format=$(grep 'SOURCE_FORMAT=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_in_subdir=$(grep 'SOURCE_IN_SUBDIR=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_rename=$(grep 'SOURCE_FILENAME=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_extract=$(grep 'SOURCE_EXTRACT=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+        local src_platform=$(grep 'SOURCE_PLATFORM=' "$src_file_path" | cut --delimiter='=' --fields=2-)
+    fi
+
+    # Default value
+    src_sumprg=${src_sumprg:-sha256sum}
+    src_in_subdir=${src_in_subdir:-true}
+    src_format=${src_format:-tar.gz}
+    src_format=$(echo "$src_format" | tr '[:upper:]' '[:lower:]')
+    src_extract=${src_extract:-true}
+
+    if [[ "$src_extract" != "true" ]] && [[ "$src_extract" != "false" ]]; then
+        ynh_die "For source $source_id, expected either 'true' or 'false' for the extract parameter"
+    fi
+
+    # (Unused?) mecanism where one can have the file in a special local cache to not have to download it...
+    local local_src="/opt/yunohost-apps-src/${YNH_APP_ID}/${source_id}"
+
+    # Gotta use this trick with 'dirname' because source_id may contain slashes x_x
+    mkdir -p $(dirname /var/cache/yunohost/download/${YNH_APP_ID}/${source_id})
+    src_filename="/var/cache/yunohost/download/${YNH_APP_ID}/${source_id}"
+
+    if [ "$src_format" = "docker" ]; then
+        src_platform="${src_platform:-"linux/$YNH_ARCH"}"
+    else
+        if test -e "$local_src"; then
+            cp $local_src $src_filename
+        fi
+
+        [ -n "$src_url" ] || ynh_die "Couldn't parse SOURCE_URL from $src_file_path ?"
+
+        # If the file was prefetched but somehow doesn't match the sum, rm and redownload it
+        if [ -e "$src_filename" ] && ! echo "${src_sum} ${src_filename}" | ${src_sumprg} --check --status; then
+            rm -f "$src_filename"
+        fi
+
+        # Only redownload the file if it wasnt prefetched
+        if [ ! -e "$src_filename" ]; then
+            # NB. we have to declare the var as local first,
+            # otherwise 'local foo=$(false) || echo 'pwet'" does'nt work
+            # because local always return 0 ...
+            local out
+            # Timeout option is here to enforce the timeout on dns query and tcp connect (c.f. man wget)
+            out=$(wget --tries 3 --no-dns-cache --timeout 900 --no-verbose --output-document=$src_filename $src_url 2>&1) \
+                || ynh_die --message="$out"
+        fi
+
+        # Check the control sum
+        if ! echo "${src_sum} ${src_filename}" | ${src_sumprg} --check --status; then
+            local actual_sum="$(${src_sumprg} ${src_filename} | cut --delimiter=' ' --fields=1)"
+            local actual_size="$(du -hs ${src_filename} | cut --fields=1)"
+            rm -f ${src_filename}
+            ynh_die --message="Corrupt source for ${src_url}: Expected sha256sum to be ${src_sum} but got ${actual_sum} (size: ${actual_size})."
+        fi
+    fi
+
+    # Keep files to be backup/restored at the end of the helper
+    # Assuming $dest_dir already exists
+    rm -rf /var/cache/yunohost/files_to_keep_during_setup_source/
+    if [ -n "$keep" ] && [ -e "$dest_dir" ]; then
+        local keep_dir=/var/cache/yunohost/files_to_keep_during_setup_source/${YNH_APP_ID}
+        mkdir -p $keep_dir
+        local stuff_to_keep
+        for stuff_to_keep in $keep; do
+            if [ -e "$dest_dir/$stuff_to_keep" ]; then
+                mkdir --parents "$(dirname "$keep_dir/$stuff_to_keep")"
+                cp --archive "$dest_dir/$stuff_to_keep" "$keep_dir/$stuff_to_keep"
+            fi
+        done
+    fi
+
+    if [ "$full_replace" -eq 1 ]; then
+        ynh_secure_remove --file="$dest_dir"
+    fi
+
+    # Extract source into the app dir
+    mkdir --parents "$dest_dir"
+
+    if [ -n "${install_dir:-}" ] && [ "$dest_dir" == "$install_dir" ]; then
+        _ynh_apply_default_permissions $dest_dir
+    fi
+    if [ -n "${final_path:-}" ] && [ "$dest_dir" == "$final_path" ]; then
+        _ynh_apply_default_permissions $dest_dir
+    fi
+
+    if [[ "$src_extract" == "false" ]]; then
+        if [[ -z "$src_rename" ]]; then
+            mv $src_filename $dest_dir
+        else
+            mv $src_filename $dest_dir/$src_rename
+        fi
+    elif [[ "$src_format" == "docker" ]]; then
+        "$YNH_HELPERS_DIR/vendor/docker-image-extract/docker-image-extract" -p $src_platform -o $dest_dir $src_url 2>&1
+    elif [[ "$src_format" == "zip" ]]; then
+        # Zip format
+        # Using of a temp directory, because unzip doesn't manage --strip-components
+        if $src_in_subdir; then
+            local tmp_dir=$(mktemp --directory)
+            unzip -quo $src_filename -d "$tmp_dir"
+            cp --archive $tmp_dir/*/. "$dest_dir"
+            ynh_secure_remove --file="$tmp_dir"
+        else
+            unzip -quo $src_filename -d "$dest_dir"
+        fi
+        ynh_secure_remove --file="$src_filename"
+    else
+        local strip=""
+        if [ "$src_in_subdir" != "false" ]; then
+            if [ "$src_in_subdir" == "true" ]; then
+                local sub_dirs=1
+            else
+                local sub_dirs="$src_in_subdir"
+            fi
+            strip="--strip-components $sub_dirs"
+        fi
+        if [[ "$src_format" =~ ^tar.gz|tar.bz2|tar.xz$ ]]; then
+            tar --extract --file=$src_filename --directory="$dest_dir" $strip
+        else
+            ynh_die --message="Archive format unrecognized."
+        fi
+        ynh_secure_remove --file="$src_filename"
+    fi
+
+    # Apply patches
+    if [ -d "$YNH_APP_BASEDIR/sources/patches/" ]; then
+        local patches_folder=$(realpath $YNH_APP_BASEDIR/sources/patches/)
+        if (($(find $patches_folder -type f -name "${source_id}-*.patch" 2> /dev/null | wc --lines) > "0")); then
+            pushd "$dest_dir"
+            for p in $patches_folder/${source_id}-*.patch; do
+                echo $p
+                patch --strip=1 < $p || ynh_print_warn --message="Packagers /!\\ patch $p failed to apply"
+            done
+            popd
+        fi
+    fi
+
+    # Add supplementary files
+    if test -e "$YNH_APP_BASEDIR/sources/extra_files/${source_id}"; then
+        cp --archive $YNH_APP_BASEDIR/sources/extra_files/$source_id/. "$dest_dir"
+    fi
+
+    # Keep files to be backup/restored at the end of the helper
+    # Assuming $dest_dir already exists
+    if [ -n "$keep" ]; then
+        local keep_dir=/var/cache/yunohost/files_to_keep_during_setup_source/${YNH_APP_ID}
+        local stuff_to_keep
+        for stuff_to_keep in $keep; do
+            if [ -e "$keep_dir/$stuff_to_keep" ]; then
+                mkdir --parents "$(dirname "$dest_dir/$stuff_to_keep")"
+
+                # We add "--no-target-directory" (short option is -T) to handle the special case
+                # when we "keep" a folder, but then the new setup already contains the same dir (but possibly empty)
+                # in which case a regular "cp" will create a copy of the directory inside the directory ...
+                # resulting in something like /var/www/$app/data/data instead of /var/www/$app/data
+                # cf https://unix.stackexchange.com/q/94831 for a more elaborate explanation on the option
+                cp --archive --no-target-directory "$keep_dir/$stuff_to_keep" "$dest_dir/$stuff_to_keep"
+            fi
+        done
+    fi
+    rm -rf /var/cache/yunohost/files_to_keep_during_setup_source/
+}

helpers/helpers.v1.d/string

@@ -48,7 +48,7 @@ ynh_replace_string() {
     ynh_handle_getopts_args "$@"
     set +o xtrace # set +x
 
-    local delimit=@
+    local delimit=$'\001'
     # Escape the delimiter if it's in the string.
     match_string=${match_string//${delimit}/"\\${delimit}"}
     replace_string=${replace_string//${delimit}/"\\${delimit}"}
@@ -91,6 +91,8 @@ ynh_replace_special_string() {
 
 # Sanitize a string intended to be the name of a database
 #
+# [packagingv1]
+#
 # usage: ynh_sanitize_dbid --db_name=name
 # | arg: -n, --db_name=     - name to correct/sanitize
 # | ret: the corrected name

helpers/helpers.v1.d/systemd

@@ -61,7 +61,7 @@ ynh_remove_systemd_config() {
 # | arg: -l, --line_match=   - Line to match - The line to find in the log to attest the service have finished to boot. If not defined it don't wait until the service is completely started.
 # | arg: -p, --log_path=     - Log file - Path to the log file. Default : `/var/log/$app/$app.log`
 # | arg: -t, --timeout=      - Timeout - The maximum time to wait before ending the watching. Default : 300 seconds.
-# | arg: -e, --length=       - Length of the error log : Default : 20
+# | arg: -e, --length=       - Length of the error log displayed for debugging : Default : 20
 #
 # Requires YunoHost version 3.5.0 or higher.
 ynh_systemd_action() {
@@ -110,6 +110,8 @@ ynh_systemd_action() {
         action="reload-or-restart"
     fi
 
+    local time_start="$(date --utc --rfc-3339=seconds | cut -d+ -f1) UTC"
+
     # If the service fails to perform the action
     if ! systemctl $action $service_name; then
         # Show syslog for this service
@@ -126,15 +128,31 @@ ynh_systemd_action() {
     if [[ -n "${line_match:-}" ]]; then
         set +x
         local i=0
+        local starttime=$(date +%s)
         for i in $(seq 1 $timeout); do
             # Read the log until the sentence is found, that means the app finished to start. Or run until the timeout
+            if [ "$log_path" == "systemd" ]; then
+                # For systemd services, we in fact dont rely on the templog, which for some reason is not reliable, but instead re-read journalctl every iteration, starting at the timestamp where we triggered the action
+                if journalctl --unit=$service_name --since="$time_start" --quiet --no-pager --no-hostname | grep --extended-regexp --quiet "$line_match"; then
+                    ynh_print_info --message="The service $service_name has correctly executed the action ${action}."
+                    break
+                fi
+            else
                 if grep --extended-regexp --quiet "$line_match" "$templog"; then
                     ynh_print_info --message="The service $service_name has correctly executed the action ${action}."
                     break
                 fi
+            fi
             if [ $i -eq 30 ]; then
                 echo "(this may take some time)" >&2
             fi
+            # Also check the timeout using actual timestamp, because sometimes for some reason,
+            # journalctl may take a huge time to run, and we end up waiting literally an entire hour
+            # instead of 5 min ...
+            if [[ "$(($(date +%s) - $starttime))" -gt "$timeout" ]]; then
+                i=$timeout
+                break
+            fi
             sleep 1
         done
         set -x

helpers/helpers.v1.d/systemuser

@@ -1,61 +1,9 @@
 #!/bin/bash
 
-# Check if a YunoHost user exists
-#
-# usage: ynh_user_exists --username=username
-# | arg: -u, --username=    - the username to check
-# | ret: 0 if the user exists, 1 otherwise.
-#
-# example: ynh_user_exists 'toto' || echo "User does not exist"
-#
-# Requires YunoHost version 2.2.4 or higher.
-ynh_user_exists() {
-    # Declare an array to define the options of this helper.
-    local legacy_args=u
-    local -A args_array=([u]=username=)
-    local username
-    # Manage arguments with getopts
-    ynh_handle_getopts_args "$@"
-
-    yunohost user list --output-as json --quiet | jq -e ".users.\"${username}\"" >/dev/null
-}
-
-# Retrieve a YunoHost user information
-#
-# usage: ynh_user_get_info --username=username --key=key
-# | arg: -u, --username=    - the username to retrieve info from
-# | arg: -k, --key=         - the key to retrieve
-# | ret: the value associate to that key
-#
-# example: mail=$(ynh_user_get_info --username="toto" --key=mail)
-#
-# Requires YunoHost version 2.2.4 or higher.
-ynh_user_get_info() {
-    # Declare an array to define the options of this helper.
-    local legacy_args=uk
-    local -A args_array=([u]=username= [k]=key=)
-    local username
-    local key
-    # Manage arguments with getopts
-    ynh_handle_getopts_args "$@"
-
-    yunohost user info "$username" --output-as json --quiet | jq -r ".$key"
-}
-
-# Get the list of YunoHost users
-#
-# usage: ynh_user_list
-# | ret: one username per line as strings
-#
-# example: for u in $(ynh_user_list); do ... ; done
-#
-# Requires YunoHost version 2.4.0 or higher.
-ynh_user_list() {
-    yunohost user list --output-as json --quiet | jq -r ".users | keys[]"
-}
-
 # Check if a user exists on the system
 #
+# [packagingv1]
+#
 # usage: ynh_system_user_exists --username=username
 # | arg: -u, --username=    - the username to check
 # | ret: 0 if the user exists, 1 otherwise.
@@ -74,6 +22,8 @@ ynh_system_user_exists() {
 
 # Check if a group exists on the system
 #
+# [packagingv1]
+#
 # usage: ynh_system_group_exists --group=group
 # | arg: -g, --group=   - the group to check
 # | ret: 0 if the group exists, 1 otherwise.

helpers/helpers.v1.d/templating

@@ -0,0 +1,406 @@
+#!/bin/bash
+
+# Create a dedicated config file from a template
+#
+# usage: ynh_add_config --template="template" --destination="destination"
+# | arg: -t, --template=     - Template config file to use
+# | arg: -d, --destination=  - Destination of the config file
+# | arg: -j, --jinja         - Use jinja template instead of the simple `__MY_VAR__` templating format
+#
+# examples:
+# ynh_add_config --template=".env" --destination="$install_dir/.env"   # (use the template file "conf/.env" from the app's package)
+# ynh_add_config --jinja --template="config.j2" --destination="$install_dir/config"    # (use the template file "conf/config.j2" from the app's package)
+#
+# The template can be by default the name of a file in the conf directory
+# of a YunoHost Package, a relative path or an absolute path.
+#
+# The helper will use the template `template` to generate a config file
+# `destination` by replacing the following keywords with global variables
+# that should be defined before calling this helper :
+# ```
+#   __PATH__                by $path_url
+#   __NAME__                by $app
+#   __NAMETOCHANGE__        by $app
+#   __USER__                by $app
+#   __FINALPATH__           by $final_path
+#   __PHPVERSION__          by $YNH_PHP_VERSION (packaging v1 only, packaging v2 uses phpversion setting implicitly set by apt resource)
+#   __YNH_NODE_LOAD_PATH__  by $ynh_node_load_PATH
+# ```
+# And any dynamic variables that should be defined before calling this helper like:
+# ```
+#   __DOMAIN__   by $domain
+#   __APP__      by $app
+#   __VAR_1__    by $var_1
+#   __VAR_2__    by $var_2
+# ```
+#
+# ##### When --jinja is enabled
+#
+# This option is meant for advanced use-cases where the "simple" templating
+# mode ain't enough because you need conditional blocks or loops.
+#
+# For a full documentation of jinja's syntax you can refer to:
+# https://jinja.palletsprojects.com/en/3.1.x/templates/
+#
+# Note that in YunoHost context, all variables are from shell variables and therefore are strings
+#
+# ##### Keeping track of manual changes by the admin
+#
+# The helper will verify the checksum and backup the destination file
+# if it's different before applying the new template.
+#
+# And it will calculate and store the destination file checksum
+# into the app settings when configuration is done.
+#
+# Requires YunoHost version 4.1.0 or higher.
+ynh_add_config() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=tdj
+    local -A args_array=([t]=template= [d]=destination= [j]=jinja)
+    local template
+    local destination
+    local jinja
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    local template_path
+    jinja="${jinja:-0}"
+
+    if [ -f "$YNH_APP_BASEDIR/conf/$template" ]; then
+        template_path="$YNH_APP_BASEDIR/conf/$template"
+    elif [ -f "$template" ]; then
+        template_path=$template
+    else
+        ynh_die --message="The provided template $template doesn't exist"
+    fi
+
+    ynh_backup_if_checksum_is_different --file="$destination"
+
+    # Make sure to set the permissions before we copy the file
+    # This is to cover a case where an attacker could have
+    # created a file beforehand to have control over it
+    # (cp won't overwrite ownership / modes by default...)
+    touch $destination
+    chmod 640 $destination
+    _ynh_apply_default_permissions $destination
+
+    if [[ "$jinja" == 1 ]]; then
+        # This is ran in a subshell such that the "export" does not "contaminate" the main process
+        (   
+            export $(compgen -v)
+            j2 "$template_path" -f env -o $destination
+        )
+    else
+        cp -f "$template_path" "$destination"
+        ynh_replace_vars --file="$destination"
+    fi
+
+    ynh_store_file_checksum --file="$destination"
+}
+
+# Replace variables in a file
+#
+# [internal]
+#
+# usage: ynh_replace_vars --file="file"
+# | arg: -f, --file=     - File where to replace variables
+#
+# The helper will replace the following keywords with global variables
+# that should be defined before calling this helper :
+#   __PATH__                by $path_url
+#   __NAME__                by $app
+#   __NAMETOCHANGE__        by $app
+#   __USER__                by $app
+#   __FINALPATH__           by $final_path
+#   __PHPVERSION__          by $YNH_PHP_VERSION (packaging v1 only, packaging v2 uses phpversion setting implicitly set by apt resource)
+#   __YNH_NODE_LOAD_PATH__  by $ynh_node_load_PATH
+#
+# And any dynamic variables that should be defined before calling this helper like:
+#   __DOMAIN__   by $domain
+#   __APP__      by $app
+#   __VAR_1__    by $var_1
+#   __VAR_2__    by $var_2
+#
+# Requires YunoHost version 4.1.0 or higher.
+ynh_replace_vars() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=f
+    local -A args_array=([f]=file=)
+    local file
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    # Replace specific YunoHost variables
+    if test -n "${path_url:-}"; then
+        # path_url_slash_less is path_url, or a blank value if path_url is only '/'
+        local path_url_slash_less=${path_url%/}
+        ynh_replace_string --match_string="__PATH__/" --replace_string="$path_url_slash_less/" --target_file="$file"
+        ynh_replace_string --match_string="__PATH__" --replace_string="$path_url" --target_file="$file"
+    fi
+    if test -n "${app:-}"; then
+        ynh_replace_string --match_string="__NAME__" --replace_string="$app" --target_file="$file"
+        ynh_replace_string --match_string="__NAMETOCHANGE__" --replace_string="$app" --target_file="$file"
+        ynh_replace_string --match_string="__USER__" --replace_string="$app" --target_file="$file"
+    fi
+    # Legacy
+    if test -n "${final_path:-}"; then
+        ynh_replace_string --match_string="__FINALPATH__" --replace_string="$final_path" --target_file="$file"
+        ynh_replace_string --match_string="__INSTALL_DIR__" --replace_string="$final_path" --target_file="$file"
+    fi
+    # Legacy / Packaging v1 only
+    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} lt 2 && test -n "${YNH_PHP_VERSION:-}"; then
+        ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$YNH_PHP_VERSION" --target_file="$file"
+    fi
+    if test -n "${ynh_node_load_PATH:-}"; then
+        ynh_replace_string --match_string="__YNH_NODE_LOAD_PATH__" --replace_string="$ynh_node_load_PATH" --target_file="$file"
+    fi
+
+    # Replace others variables
+
+    # List other unique (__ __) variables in $file
+    local uniques_vars=($(grep -oP '__[A-Z0-9]+?[A-Z0-9_]*?[A-Z0-9]*?__' $file | sort --unique | sed "s@__\([^.]*\)__@\L\1@g"))
+
+    set +o xtrace # set +x
+
+    # Do the replacement
+    local delimit=@
+    for one_var in "${uniques_vars[@]}"; do
+        # Validate that one_var is indeed defined
+        # -v checks if the variable is defined, for example:
+        #     -v FOO  tests if $FOO is defined
+        #     -v $FOO tests if ${!FOO} is defined
+        # More info: https://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash/17538964#comment96392525_17538964
+        [[ -v "${one_var:-}" ]] || ynh_die --message="Variable \$$one_var wasn't initialized when trying to replace __${one_var^^}__ in $file"
+
+        # Escape delimiter in match/replace string
+        match_string="__${one_var^^}__"
+        match_string=${match_string//${delimit}/"\\${delimit}"}
+        replace_string="${!one_var}"
+        replace_string=${replace_string//\\/\\\\}
+        replace_string=${replace_string//${delimit}/"\\${delimit}"}
+
+        # Actually replace (sed is used instead of ynh_replace_string to avoid triggering an epic amount of debug logs)
+        sed --in-place "s${delimit}${match_string}${delimit}${replace_string}${delimit}g" "$file"
+    done
+    set -o xtrace # set -x
+}
+
+# Get a value from heterogeneous file (yaml, json, php, python...)
+#
+# usage: ynh_read_var_in_file --file=PATH --key=KEY
+# | arg: -f, --file=     - the path to the file
+# | arg: -k, --key=     - the key to get
+# | arg: -a, --after=     - the line just before the key (in case of multiple lines with the name of the key in the file)
+#
+# This helpers match several var affectation use case in several languages
+# We don't use jq or equivalent to keep comments and blank space in files
+# This helpers work line by line, it is not able to work correctly
+# if you have several identical keys in your files
+#
+# Example of line this helpers can managed correctly
+# .yml
+#     title: YunoHost documentation
+#     email: 'yunohost@yunohost.org'
+# .json
+#     "theme": "colib'ris",
+#     "port": 8102
+#     "some_boolean":     false,
+#     "user": null
+# .ini
+#     some_boolean = On
+#     action = "Clear"
+#     port = 20
+# .php
+#     $user=
+#     user => 20
+# .py
+#     USER = 8102
+#     user = 'https://donate.local'
+#     CUSTOM['user'] = 'YunoHost'
+#
+# Requires YunoHost version 4.3 or higher.
+ynh_read_var_in_file() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=fka
+    local -A args_array=([f]=file= [k]=key= [a]=after=)
+    local file
+    local key
+    local after
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    after="${after:-}"
+
+    [[ -f $file ]] || ynh_die --message="File $file does not exists"
+
+    set +o xtrace # set +x
+
+    # Get the line number after which we search for the variable
+    local line_number=1
+    if [[ -n "$after" ]]; then
+        line_number=$(grep -m1 -n $after $file | cut -d: -f1)
+        if [[ -z "$line_number" ]]; then
+            set -o xtrace # set -x
+            return 1
+        fi
+    fi
+
+    local filename="$(basename -- "$file")"
+    local ext="${filename##*.}"
+    local endline=',;'
+    local assign="=>|:|="
+    local comments="#"
+    local string="\"'"
+    if [[ "$ext" =~ ^ini|env|toml|yml|yaml$ ]]; then
+        endline='#'
+    fi
+    if [[ "$ext" =~ ^ini|env$ ]]; then
+        comments="[;#]"
+    fi
+    if [[ "php" == "$ext" ]] || [[ "$ext" == "js" ]]; then
+        comments="//"
+    fi
+    local list='\[\s*['$string']?\w+['$string']?\]'
+    local var_part='^\s*((const|var|let)\s+)?\$?(\w+('$list')*(->|\.|\[))*\s*'
+    var_part+="[$string]?${key}[$string]?"
+    var_part+='\s*\]?\s*'
+    var_part+="($assign)"
+    var_part+='\s*'
+
+    # Extract the part after assignation sign
+    local expression_with_comment="$( (tail +$line_number ${file} | grep -i -o -P $var_part'\K.*$' || echo YNH_NULL) | head -n1)"
+    if [[ "$expression_with_comment" == "YNH_NULL" ]]; then
+        set -o xtrace # set -x
+        echo YNH_NULL
+        return 0
+    fi
+
+    # Remove comments if needed
+    local expression="$(echo "$expression_with_comment" | sed "s@${comments}[^$string]*\$@@g" | sed "s@\s*[$endline]*\s*]*\$@@")"
+
+    local first_char="${expression:0:1}"
+    if [[ "$first_char" == '"' ]]; then
+        echo "$expression" | grep -m1 -o -P '"\K([^"](\\")?)*[^\\](?=")' | head -n1 | sed 's/\\"/"/g'
+    elif [[ "$first_char" == "'" ]]; then
+        echo "$expression" | grep -m1 -o -P "'\K([^'](\\\\')?)*[^\\\\](?=')" | head -n1 | sed "s/\\\\'/'/g"
+    else
+        echo "$expression"
+    fi
+    set -o xtrace # set -x
+}
+
+# Set a value into heterogeneous file (yaml, json, php, python...)
+#
+# usage: ynh_write_var_in_file --file=PATH --key=KEY --value=VALUE
+# | arg: -f, --file=     - the path to the file
+# | arg: -k, --key=     - the key to set
+# | arg: -v, --value=     - the value to set
+# | arg: -a, --after=     - the line just before the key (in case of multiple lines with the name of the key in the file)
+#
+# Requires YunoHost version 4.3 or higher.
+ynh_write_var_in_file() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=fkva
+    local -A args_array=([f]=file= [k]=key= [v]=value= [a]=after=)
+    local file
+    local key
+    local value
+    local after
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    after="${after:-}"
+
+    [[ -f $file ]] || ynh_die --message="File $file does not exists"
+
+    set +o xtrace # set +x
+
+    # Get the line number after which we search for the variable
+    local after_line_number=1
+    if [[ -n "$after" ]]; then
+        after_line_number=$(grep -m1 -n $after $file | cut -d: -f1)
+        if [[ -z "$after_line_number" ]]; then
+            set -o xtrace # set -x
+            return 1
+        fi
+    fi
+
+    local filename="$(basename -- "$file")"
+    local ext="${filename##*.}"
+    local endline=',;'
+    local assign="=>|:|="
+    local comments="#"
+    local string="\"'"
+    if [[ "$ext" =~ ^ini|env|toml|yml|yaml$ ]]; then
+        endline='#'
+    fi
+    if [[ "$ext" =~ ^ini|env$ ]]; then
+        comments="[;#]"
+    fi
+    if [[ "php" == "$ext" ]] || [[ "$ext" == "js" ]]; then
+        comments="//"
+    fi
+    local list='\[\s*['$string']?\w+['$string']?\]'
+    local var_part='^\s*((const|var|let)\s+)?\$?(\w+('$list')*(->|\.|\[))*\s*'
+    var_part+="[$string]?${key}[$string]?"
+    var_part+='\s*\]?\s*'
+    var_part+="($assign)"
+    var_part+='\s*'
+
+    # Extract the part after assignation sign
+    local expression_with_comment="$( (tail +$after_line_number ${file} | grep -i -o -P $var_part'\K.*$' || echo YNH_NULL) | head -n1)"
+    if [[ "$expression_with_comment" == "YNH_NULL" ]]; then
+        set -o xtrace # set -x
+        return 1
+    fi
+    local value_line_number="$(tail +$after_line_number ${file} | grep -m1 -n -i -P $var_part'\K.*$' | cut -d: -f1)"
+    value_line_number=$((after_line_number + value_line_number))
+    local range="${after_line_number},${value_line_number} "
+
+    # Remove comments if needed
+    local expression="$(echo "$expression_with_comment" | sed "s@${comments}[^$string]*\$@@g" | sed "s@\s*[$endline]*\s*]*\$@@")"
+    endline=${expression_with_comment#"$expression"}
+    endline="$(echo "$endline" | sed 's/\\/\\\\/g')"
+    value="$(echo "$value" | sed 's/\\/\\\\/g')"
+    value=${value//&/"\&"}
+    local first_char="${expression:0:1}"
+    delimiter=$'\001'
+    if [[ "$first_char" == '"' ]]; then
+        # \ and sed is quite complex you need 2 \\ to get one in a sed
+        # So we need \\\\ to go through 2 sed
+        value="$(echo "$value" | sed 's/"/\\\\"/g')"
+        sed -ri "${range}s$delimiter"'(^'"${var_part}"'")([^"]|\\")*("[\s;,]*)(\s*'$comments'.*)?$'$delimiter'\1'"${value}"'"'"${endline}${delimiter}i" ${file}
+    elif [[ "$first_char" == "'" ]]; then
+        # \ and sed is quite complex you need 2 \\ to get one in a sed
+        # However double quotes implies to double \\ to
+        # So we need \\\\\\\\ to go through 2 sed and 1 double quotes str
+        value="$(echo "$value" | sed "s/'/\\\\\\\\'/g")"
+        sed -ri "${range}s$delimiter(^${var_part}')([^']|\\')*('"'[\s,;]*)(\s*'$comments'.*)?$'$delimiter'\1'"${value}'${endline}${delimiter}i" ${file}
+    else
+        if [[ "$value" == *"'"* ]] || [[ "$value" == *'"'* ]] || [[ "$ext" =~ ^php|py|json|js$ ]]; then
+            value='\"'"$(echo "$value" | sed 's/"/\\\\"/g')"'\"'
+        fi
+        if [[ "$ext" =~ ^yaml|yml$ ]]; then
+            value=" $value"
+        fi
+        sed -ri "${range}s$delimiter(^${var_part}).*\$$delimiter\1${value}${endline}${delimiter}i" ${file}
+    fi
+    set -o xtrace # set -x
+}
+
+# Render templates with Jinja2
+#
+# [internal]
+#
+# Attention : Variables should be exported before calling this helper to be
+# accessible inside templates.
+#
+# usage: ynh_render_template some_template output_path
+# | arg: some_template - Template file to be rendered
+# | arg: output_path   - The path where the output will be redirected to
+ynh_render_template() {
+    local template_path=$1
+    local output_path=$2
+    mkdir -p "$(dirname $output_path)"
+    # Taken from https://stackoverflow.com/a/35009576
+    python3 -c 'import os, sys, jinja2; sys.stdout.write(
+                    jinja2.Template(sys.stdin.read()
+                    ).render(os.environ));' < $template_path > $output_path
+}

helpers/helpers.v1.d/utils

@@ -0,0 +1,450 @@
+#!/bin/bash
+
+YNH_APP_BASEDIR=${YNH_APP_BASEDIR:-$(realpath ..)}
+
+# Handle script crashes / failures
+#
+# [internal]
+#
+# usage:
+# ynh_exit_properly is used only by the helper ynh_abort_if_errors.
+# You should not use it directly.
+# Instead, add to your script:
+# ynh_clean_setup () {
+#        instructions...
+# }
+#
+# This function provide a way to clean some residual of installation that not managed by remove script.
+#
+# It prints a warning to inform that the script was failed, and execute the ynh_clean_setup function if used in the app script
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_exit_properly() {
+    local exit_code=$?
+
+    if [[ "${YNH_APP_ACTION:-}" =~ ^install$|^upgrade$|^restore$ ]]; then
+        rm -rf "/var/cache/yunohost/download/"
+    fi
+
+    if [ "$exit_code" -eq 0 ]; then
+        exit 0 # Exit without error if the script ended correctly
+    fi
+
+    trap '' EXIT # Ignore new exit signals
+    # Do not exit anymore if a command fail or if a variable is empty
+    set +o errexit # set +e
+    set +o nounset # set +u
+
+    # Small tempo to avoid the next message being mixed up with other DEBUG messages
+    sleep 0.5
+
+    if type -t ynh_clean_setup > /dev/null; then # Check if the function exist in the app script.
+        ynh_clean_setup                         # Call the function to do specific cleaning for the app.
+    fi
+
+    # Exit with error status
+    # We don't call ynh_die basically to avoid unecessary 10-ish
+    # debug lines about parsing args and stuff just to exit 1..
+    exit 1
+}
+
+# Exits if an error occurs during the execution of the script.
+#
+# [packagingv1]
+#
+# usage: ynh_abort_if_errors
+#
+# This configure the rest of the script execution such that, if an error occurs
+# or if an empty variable is used, the execution of the script stops immediately
+# and a call to `ynh_clean_setup` is triggered if it has been defined by your script.
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_abort_if_errors() {
+    set -o errexit              # set -e; Exit if a command fail
+    set -o nounset              # set -u; And if a variable is used unset
+    trap ynh_exit_properly EXIT # Capturing exit signals on shell script
+}
+
+# When running an app script with packaging format >= 2, auto-enable ynh_abort_if_errors except for remove script
+if [[ "${YNH_CONTEXT:-}" != "regenconf" ]] && dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} ge 2 && [[ ${YNH_APP_ACTION} != "remove" ]]; then
+    ynh_abort_if_errors
+fi
+
+# Curl abstraction to help with POST requests to local pages (such as installation forms)
+#
+# usage: ynh_local_curl "page_uri" "key1=value1" "key2=value2" ...
+# | arg: page_uri    - Path (relative to `$path_url`) of the page where POST data will be sent
+# | arg: key1=value1 - (Optionnal) POST key and corresponding value
+# | arg: key2=value2 - (Optionnal) Another POST key and corresponding value
+# | arg: ...         - (Optionnal) More POST keys and values
+#
+# example: ynh_local_curl "/install.php?installButton" "foo=$var1" "bar=$var2"
+#
+# For multiple calls, cookies are persisted between each call for the same app
+#
+# `$domain` and `$path_url` should be defined externally (and correspond to the domain.tld and the /path (of the app?))
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_local_curl() {
+    # Define url of page to curl
+    local local_page=$(ynh_normalize_url_path $1)
+    local full_path=$path_url$local_page
+
+    if [ "${path_url}" == "/" ]; then
+        full_path=$local_page
+    fi
+
+    local full_page_url=https://localhost$full_path
+
+    # Concatenate all other arguments with '&' to prepare POST data
+    local POST_data=""
+    local arg=""
+    for arg in "${@:2}"; do
+        POST_data="${POST_data}${arg}&"
+    done
+    if [ -n "$POST_data" ]; then
+        # Add --data arg and remove the last character, which is an unecessary '&'
+        POST_data="--data ${POST_data::-1}"
+    fi
+
+    # Wait untils nginx has fully reloaded (avoid curl fail with http2)
+    sleep 2
+
+    local cookiefile=/tmp/ynh-$app-cookie.txt
+    touch $cookiefile
+    chown root $cookiefile
+    chmod 700 $cookiefile
+
+    # Temporarily enable visitors if needed...
+    local visitors_enabled=$(ynh_permission_has_user "main" "visitors" && echo yes || echo no)
+    if [[ $visitors_enabled == "no" ]]; then
+        ynh_permission_update --permission "main" --add "visitors"
+    fi
+
+    # Curl the URL
+    curl --silent --show-error --insecure --location --header "Host: $domain" --resolve $domain:443:127.0.0.1 $POST_data "$full_page_url" --cookie-jar $cookiefile --cookie $cookiefile
+
+    if [[ $visitors_enabled == "no" ]]; then
+        ynh_permission_update --permission "main" --remove "visitors"
+    fi
+}
+
+# Fetch the Debian release codename
+#
+# [packagingv1]
+#
+# usage: ynh_get_debian_release
+# | ret: The Debian release codename (i.e. jessie, stretch, ...)
+#
+# Requires YunoHost version 2.7.12 or higher.
+ynh_get_debian_release() {
+    echo $(lsb_release --codename --short)
+}
+
+_acceptable_path_to_delete() {
+    local file=$1
+
+    local forbidden_paths=$(ls -d / /* /{var,home,usr}/* /etc/{default,sudoers.d,yunohost,cron*} /etc/yunohost/{apps,domains,hooks.d} /opt/yunohost 2> /dev/null)
+
+    # Legacy : A couple apps still have data in /home/$app ...
+    if [[ -n "${app:-}" ]]; then
+        forbidden_paths=$(echo "$forbidden_paths" | grep -v "/home/$app")
+    fi
+
+    # Use realpath to normalize the path ..
+    # i.e convert ///foo//bar//..///baz//// to /foo/baz
+    file=$(realpath --no-symlinks "$file")
+    if [ -z "$file" ] || grep -q -x -F "$file" <<< "$forbidden_paths"; then
+        return 1
+    else
+        return 0
+    fi
+}
+
+# Remove a file or a directory securely
+#
+# usage: ynh_secure_remove --file=path_to_remove
+# | arg: -f, --file=    - File or directory to remove
+#
+# Requires YunoHost version 2.6.4 or higher.
+ynh_secure_remove() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=f
+    local -A args_array=([f]=file=)
+    local file
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    set +o xtrace # set +x
+
+    if [ $# -ge 2 ]; then
+        ynh_print_warn --message="/!\ Packager ! You provided more than one argument to ynh_secure_remove but it will be ignored... Use this helper with one argument at time."
+    fi
+
+    if [[ -z "$file" ]]; then
+        ynh_print_warn --message="ynh_secure_remove called with empty argument, ignoring."
+    elif [[ ! -e $file ]]; then
+        ynh_print_info --message="'$file' wasn't deleted because it doesn't exist."
+    elif ! _acceptable_path_to_delete "$file"; then
+        ynh_print_warn --message="Not deleting '$file' because it is not an acceptable path to delete."
+    else
+        rm --recursive "$file"
+    fi
+
+    set -o xtrace # set -x
+}
+
+# Read the value of a key in a ynh manifest file
+#
+# usage: ynh_read_manifest --manifest="manifest.json" --manifest_key="key"
+# | arg: -m, --manifest=      - Path of the manifest to read
+# | arg: -k, --manifest_key=  - Name of the key to find
+# | ret: the value associate to that key
+#
+# Requires YunoHost version 3.5.0 or higher.
+ynh_read_manifest() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=mk
+    local -A args_array=([m]=manifest= [k]=manifest_key=)
+    local manifest
+    local manifest_key
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    if [ ! -e "${manifest:-}" ]; then
+        # If the manifest isn't found, try the common place for backup and restore script.
+        if [ -e "$YNH_APP_BASEDIR/manifest.json" ]; then
+            manifest="$YNH_APP_BASEDIR/manifest.json"
+        elif [ -e "$YNH_APP_BASEDIR/manifest.toml" ]; then
+            manifest="$YNH_APP_BASEDIR/manifest.toml"
+        else
+            ynh_die --message "No manifest found !?"
+        fi
+    fi
+
+    if echo "$manifest" | grep -q '\.json$'; then
+        jq ".$manifest_key" "$manifest" --raw-output
+    else
+        cat "$manifest" | python3 -c 'import json, toml, sys; print(json.dumps(toml.load(sys.stdin)))' | jq ".$manifest_key" --raw-output
+    fi
+}
+
+# Read the upstream version from the manifest or `$YNH_APP_MANIFEST_VERSION`
+#
+# usage: ynh_app_upstream_version [--manifest="manifest.json"]
+# | arg: -m, --manifest=    - Path of the manifest to read
+# | ret: the version number of the upstream app
+#
+# If the `manifest` is not specified, the envvar `$YNH_APP_MANIFEST_VERSION` will be used.
+#
+# The version number in the manifest is defined by `<upstreamversion>~ynh<packageversion>`.
+#
+# For example, if the manifest contains `4.3-2~ynh3` the function will return `4.3-2`
+#
+# Requires YunoHost version 3.5.0 or higher.
+ynh_app_upstream_version() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=m
+    local -A args_array=([m]=manifest=)
+    local manifest
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+    manifest="${manifest:-}"
+
+    if [[ "$manifest" != "" ]] && [[ -e "$manifest" ]]; then
+        version_key_=$(ynh_read_manifest --manifest="$manifest" --manifest_key="version")
+    else
+        version_key_=$YNH_APP_MANIFEST_VERSION
+    fi
+
+    echo "${version_key_/~ynh*/}"
+}
+
+# Read package version from the manifest
+#
+# [internal]
+#
+# usage: ynh_app_package_version [--manifest="manifest.json"]
+# | arg: -m, --manifest=    - Path of the manifest to read
+# | ret: the version number of the package
+#
+# The version number in the manifest is defined by `<upstreamversion>~ynh<packageversion>`.
+#
+# For example, if the manifest contains `4.3-2~ynh3` the function will return `3`
+#
+# Requires YunoHost version 3.5.0 or higher.
+ynh_app_package_version() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=m
+    local -A args_array=([m]=manifest=)
+    local manifest
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    version_key_=$YNH_APP_MANIFEST_VERSION
+    echo "${version_key_/*~ynh/}"
+}
+
+# Checks the app version to upgrade with the existing app version and returns:
+#
+# usage: ynh_check_app_version_changed
+# | ret: `UPGRADE_APP` if the upstream version changed, `UPGRADE_PACKAGE` otherwise.
+#
+# This helper should be used to avoid an upgrade of an app, or the upstream part
+# of it, when it's not needed
+#
+# Requires YunoHost version 3.5.0 or higher.
+ynh_check_app_version_changed() {
+    local return_value=${YNH_APP_UPGRADE_TYPE}
+
+    if [ "$return_value" == "UPGRADE_SAME" ] || [ "$return_value" == "DOWNGRADE" ]; then
+        return_value="UPGRADE_APP"
+    fi
+
+    echo $return_value
+}
+
+# Compare the current package version against another version given as an argument.
+#
+# usage: ynh_compare_current_package_version --comparison (lt|le|eq|ne|ge|gt) --version <X~ynhY>
+# | arg: --comparison - Comparison type. Could be : `lt` (lower than), `le` (lower or equal), `eq` (equal), `ne` (not equal), `ge` (greater or equal), `gt` (greater than)
+# | arg: --version - The version to compare. Need to be a version in the yunohost package version type (like `2.3.1~ynh4`)
+# | ret: 0 if the evaluation is true, 1 if false.
+#
+# example: ynh_compare_current_package_version --comparison lt --version 2.3.2~ynh1
+#
+# This helper is usually used when we need to do some actions only for some old package versions.
+#
+# Generally you might probably use it as follow in the upgrade script :
+# ```
+# if ynh_compare_current_package_version --comparison lt --version 2.3.2~ynh1
+# then
+#     # Do something that is needed for the package version older than 2.3.2~ynh1
+# fi
+# ```
+#
+# Requires YunoHost version 3.8.0 or higher.
+ynh_compare_current_package_version() {
+    local legacy_args=cv
+    declare -Ar args_array=([c]=comparison= [v]=version=)
+    local version
+    local comparison
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    local current_version=$YNH_APP_CURRENT_VERSION
+
+    # Check the syntax of the versions
+    if [[ ! $version =~ '~ynh' ]] || [[ ! $current_version =~ '~ynh' ]]; then
+        ynh_die --message="Invalid argument for version."
+    fi
+
+    # Check validity of the comparator
+    if [[ ! $comparison =~ (lt|le|eq|ne|ge|gt) ]]; then
+        ynh_die --message="Invalid comparator must be : lt, le, eq, ne, ge, gt"
+    fi
+
+    # Return the return value of dpkg --compare-versions
+    dpkg --compare-versions $current_version $comparison $version
+}
+
+# Check if we should enforce sane default permissions (= disable rwx for 'others')
+# on file/folders handled with ynh_setup_source and ynh_add_config
+#
+# [internal]
+#
+# Having a file others-readable or a folder others-executable(=enterable)
+# is a security risk comparable to "chmod 777"
+#
+# Configuration files may contain secrets. Or even just being able to enter a
+# folder may allow an attacker to do nasty stuff (maybe a file or subfolder has
+# some write permission enabled for 'other' and the attacker may edit the
+# content or create files as leverage for priviledge escalation ...)
+#
+# The sane default should be to set ownership to $app:$app.
+# In specific case, you may want to set the ownership to $app:www-data
+# for example if nginx needs access to static files.
+#
+_ynh_apply_default_permissions() {
+    local target=$1
+
+    local ynh_requirement=$(ynh_read_manifest --manifest_key="requirements.yunohost" | tr -d '<>= ')
+
+    if dpkg --compare-versions ${YNH_APP_PACKAGING_FORMAT:-0} ge 2 || [ -z "$ynh_requirement" ] || [ "$ynh_requirement" == "null" ] || dpkg --compare-versions $ynh_requirement ge 4.2; then
+        chmod o-rwx $target
+        chmod g-w $target
+        chown -R root:root $target
+        if ynh_system_user_exists $app; then
+            chown $app:$app $target
+        fi
+    fi
+
+    # Crons should be owned by root
+    # Also we don't want systemd conf, nginx conf or others stuff to be owned by the app,
+    # otherwise they could self-edit their own systemd conf and escalate privilege
+    if grep -qE '^(/etc/cron|/etc/php|/etc/nginx/conf.d|/etc/fail2ban|/etc/systemd/system)' <<< "$target"; then
+        chmod 400 $target
+        chown root:root $target
+    fi
+}
+
+int_to_bool() {
+    sed -e 's/^1$/True/g' -e 's/^0$/False/g'
+}
+
+toml_to_json() {
+    python3 -c 'import toml, json, sys; print(json.dumps(toml.load(sys.stdin)))'
+}
+
+# Check if a YunoHost user exists
+#
+# usage: ynh_user_exists --username=username
+# | arg: -u, --username=    - the username to check
+# | ret: 0 if the user exists, 1 otherwise.
+#
+# example: ynh_user_exists 'toto' || echo "User does not exist"
+#
+# Requires YunoHost version 2.2.4 or higher.
+ynh_user_exists() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=u
+    local -A args_array=([u]=username=)
+    local username
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    yunohost user list --output-as json --quiet | jq -e ".users.\"${username}\"" > /dev/null
+}
+
+# Retrieve a YunoHost user information
+#
+# usage: ynh_user_get_info --username=username --key=key
+# | arg: -u, --username=    - the username to retrieve info from
+# | arg: -k, --key=         - the key to retrieve
+# | ret: the value associate to that key
+#
+# example: mail=$(ynh_user_get_info --username="toto" --key=mail)
+#
+# Requires YunoHost version 2.2.4 or higher.
+ynh_user_get_info() {
+    # Declare an array to define the options of this helper.
+    local legacy_args=uk
+    local -A args_array=([u]=username= [k]=key=)
+    local username
+    local key
+    # Manage arguments with getopts
+    ynh_handle_getopts_args "$@"
+
+    yunohost user info "$username" --output-as json --quiet | jq -r ".$key"
+}
+
+# Get the list of YunoHost users
+#
+# usage: ynh_user_list
+# | ret: one username per line as strings
+#
+# example: for u in $(ynh_user_list); do ... ; done
+#
+# Requires YunoHost version 2.4.0 or higher.
+ynh_user_list() {
+    yunohost user list --output-as json --quiet | jq -r ".users | keys[]"
+}

helpers/helpers.v1.d/vendor

@@ -0,0 +1 @@
+../vendor

helpers/helpers.v2.1.d/apt

@@ -0,0 +1,330 @@
+#!/bin/bash
+
+YNH_APT_INSTALL_DEPENDENCIES_REPLACE="true"
+
+# Define and install dependencies with a equivs control file
+#
+# example : ynh_apt_install_dependencies dep1 dep2 "dep3|dep4|dep5"
+#
+# usage: ynh_apt_install_dependencies dep [dep [...]]
+# | arg: dep - the package name to install in dependence.
+# | arg: "dep1|dep2|…" - You can specify alternatives. It will require to install (dep1 or dep2, etc).
+#
+ynh_apt_install_dependencies() {
+
+    # Add a comma for each space between packages. But not add a comma if the space separate a version specification. (See below)
+    local dependencies="$(sed 's/\([^\<=\>]\)\ \([^(]\)/\1, \2/g' <<< "$@" | sed 's/|/ | /')"
+    local version=$(ynh_read_manifest "version")
+    local app_ynh_deps="${app//_/-}-ynh-deps" # Replace all '_' by '-', and append -ynh-deps
+
+    # Handle specific versions
+    if grep '[<=>]' <<< "$dependencies"; then
+        # Replace version specifications by relationships syntax
+        # https://www.debian.org/doc/debian-policy/ch-relationships.html
+        # Sed clarification
+        # [^(\<=\>] ignore if it begins by ( or < = >. To not apply twice.
+        # [\<=\>] matches < = or >
+        # \+ matches one or more occurence of the previous characters, for >= or >>.
+        # [^,]\+ matches all characters except ','
+        # Ex: 'package>=1.0' will be replaced by 'package (>= 1.0)'
+        dependencies="$(sed 's/\([^(\<=\>]\)\([\<=\>]\+\)\([^,]\+\)/\1 (\2 \3)/g' <<< "$dependencies")"
+    fi
+
+    # ############################## #
+    # Specific tweaks related to PHP #
+    # ############################## #
+
+    # Check for specific php dependencies which requires sury
+    # This grep will for example return "7.4" if dependencies is "foo bar php7.4-pwet php-gni"
+    # The (?<=php) syntax corresponds to lookbehind ;)
+    local specific_php_version=$(grep -oP '(?<=php)[0-9.]+(?=-|\>|)' <<< "$dependencies" | sort -u)
+
+    if [[ -n "$specific_php_version" ]]; then
+        # Cover a small edge case where a packager could have specified "php7.4-pwet php5-gni" which is confusing
+        [[ $(echo $specific_php_version | wc -l) -eq 1 ]] \
+            || ynh_die "Inconsistent php versions in dependencies ... found : $specific_php_version"
+
+        dependencies+=", php${specific_php_version}, php${specific_php_version}-fpm, php${specific_php_version}-common"
+
+        local old_php_version=$(ynh_app_setting_get --key=php_version)
+
+        # If the PHP version changed, remove the old fpm conf
+        if [ -n "$old_php_version" ] && [ "$old_php_version" != "$specific_php_version" ]; then
+            if [[ -f "/etc/php/$php_version/fpm/pool.d/$app.conf" ]]; then
+                ynh_backup_if_checksum_is_different "/etc/php/$php_version/fpm/pool.d/$app.conf"
+                ynh_config_remove_phpfpm
+            fi
+        fi
+        # Store php_version into the config of this app
+        ynh_app_setting_set --key=php_version --value=$specific_php_version
+
+        # Set the default php version back as the default version for php-cli.
+        if test -e /usr/bin/php$YNH_DEFAULT_PHP_VERSION; then
+            update-alternatives --set php /usr/bin/php$YNH_DEFAULT_PHP_VERSION
+        fi
+    elif grep --quiet 'php' <<< "$dependencies"; then
+        ynh_app_setting_set --key=php_version --value=$YNH_DEFAULT_PHP_VERSION
+    fi
+
+    # Specific tweak related to Postgresql (cf end of the helper)
+    local psql_installed="$(_ynh_apt_package_is_installed "postgresql-$PSQL_VERSION" && echo yes || echo no)"
+
+    # The first time we run ynh_apt_install_dependencies, we will replace the
+    # entire control file (This is in particular meant to cover the case of
+    # upgrade script where ynh_apt_install_dependencies is called with this
+    # expected effect) Otherwise, any subsequent call will add dependencies
+    # to those already present in the equivs control file.
+    if [[ $YNH_APT_INSTALL_DEPENDENCIES_REPLACE == "true" ]]; then
+        YNH_APT_INSTALL_DEPENDENCIES_REPLACE="false"
+    else
+        local current_dependencies=""
+        if _ynh_apt_package_is_installed "${app_ynh_deps}"; then
+            current_dependencies="$(dpkg-query --show --showformat='${Depends}' ${app_ynh_deps}) "
+            current_dependencies=${current_dependencies// | /|}
+        fi
+        dependencies="$current_dependencies, $dependencies"
+    fi
+
+    # ################
+    # Actual install #
+    # ################
+
+    # Prepare the virtual-dependency control file for dpkg-deb --build
+    local TMPDIR=$(mktemp --directory)
+    mkdir -p ${TMPDIR}/${app_ynh_deps}/DEBIAN
+    # For some reason, dpkg-deb insists for folder perm to be 755 and sometimes it's 777 o_O?
+    chmod -R 755 ${TMPDIR}/${app_ynh_deps}
+
+    cat > ${TMPDIR}/${app_ynh_deps}/DEBIAN/control << EOF
+Section: misc
+Priority: optional
+Package: ${app_ynh_deps}
+Version: ${version}
+Depends: ${dependencies//,,/,}
+Architecture: all
+Maintainer: root@localhost
+Description: Fake package for ${app} (YunoHost app) dependencies
+ This meta-package is only responsible of installing its dependencies.
+EOF
+
+    _ynh_apt update
+
+    _ynh_wait_dpkg_free
+
+    # Install the fake package without its dependencies with dpkg --force-depends
+    if ! LC_ALL=C dpkg-deb --build "${TMPDIR}/${app_ynh_deps}" "${TMPDIR}/${app_ynh_deps}.deb" > "${TMPDIR}/dpkg_log" 2>&1; then
+        cat "${TMPDIR}/dpkg_log" >&2
+        ynh_die --message="Unable to install dependencies"
+    fi
+    # Don't crash in case of error, because is nicely covered by the following line
+    LC_ALL=C dpkg --force-depends --install "${TMPDIR}/${app_ynh_deps}.deb" 2>&1 | tee "${TMPDIR}/dpkg_log" || true
+
+    # Then install the missing dependencies with apt install
+    _ynh_apt_install --fix-broken || {
+        # If the installation failed
+        # (the following is ran inside { } to not start a subshell otherwise ynh_die wouldnt exit the original process)
+        # Parse the list of problematic dependencies from dpkg's log ...
+        # (relevant lines look like: "foo-ynh-deps depends on bar; however:")
+        cat $TMPDIR/dpkg_log
+        local problematic_dependencies="$(grep -oP '(?<=-ynh-deps depends on ).*(?=; however)' $TMPDIR/dpkg_log | tr '\n' ' ')"
+        # Fake an install of those dependencies to see the errors
+        # The sed command here is, Print only from 'Reading state info' to the end.
+        [[ -n "$problematic_dependencies" ]] && _ynh_apt_install $problematic_dependencies --dry-run 2>&1 | sed --quiet '/Reading state info/,$p' | grep -v "fix-broken\|Reading state info" >&2
+        ynh_die "Unable to install apt dependencies"
+    }
+    rm --recursive --force "$TMPDIR" # Remove the temp dir.
+
+    # check if the package is actually installed
+    _ynh_apt_package_is_installed "${app_ynh_deps}" || ynh_die "Unable to install apt dependencies"
+
+    # Specific tweak related to Postgresql
+    # -> trigger postgresql regenconf if we may have just installed postgresql
+    local psql_installed2="$(_ynh_apt_package_is_installed "postgresql-$PSQL_VERSION" && echo yes || echo no)"
+    if [[ "$psql_installed" != "$psql_installed2" ]]; then
+        yunohost tools regen-conf postgresql
+    fi
+
+}
+
+# Remove fake package and its dependencies
+#
+# Dependencies will removed only if no other package need them.
+#
+# usage: ynh_apt_remove_dependencies
+ynh_apt_remove_dependencies() {
+    local app_ynh_deps="${app//_/-}-ynh-deps" # Replace all '_' by '-', and append -ynh-deps
+
+    local current_dependencies=""
+    if _ynh_apt_package_is_installed "${app_ynh_deps}"; then
+        current_dependencies="$(dpkg-query --show --showformat='${Depends}' ${app_ynh_deps}) "
+        current_dependencies=${current_dependencies// | /|}
+    fi
+
+    # Edge case where the app dep may be on hold,
+    # cf https://forum.yunohost.org/t/migration-error-cause-of-ffsync/20675/4
+    if apt-mark showhold | grep -q -w ${app_ynh_deps}; then
+        apt-mark unhold ${app_ynh_deps}
+    fi
+
+    # Remove the fake package and its dependencies if they not still used.
+    # (except if dpkg doesn't know anything about the package,
+    # which should be symptomatic of a failed install, and we don't want bash to report an error)
+    if dpkg-query --show ${app_ynh_deps} &> /dev/null; then
+        _ynh_apt autoremove --purge ${app_ynh_deps}
+    fi
+}
+
+# Install packages from an extra repository properly.
+#
+# usage: ynh_apt_install_dependencies_from_extra_repository --repo="repo" --package="dep1 dep2" --key=key_url
+# | arg: --repo=    - Complete url of the extra repository.
+# | arg: --package= - The packages to install from this extra repository
+# | arg: --key=     - url to get the public key.
+#
+ynh_apt_install_dependencies_from_extra_repository() {
+    # ============ Argument parsing =============
+    local -A args_array=([r]=repo= [p]=package= [k]=key=)
+    local repo
+    local package
+    local key
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    # Split the repository into uri, suite and components.
+    IFS=', ' read -r -a repo_parts <<< "$repo"
+    index=0
+
+    # Remove "deb " at the beginning of the repo.
+    if [[ "${repo_parts[0]}" == "deb" ]]; then
+        index=1
+    fi
+    uri="${repo_parts[$index]}"
+    index=$((index + 1))
+    suite="${repo_parts[$index]}"
+    index=$((index + 1))
+
+    # Get the components
+    if (("${#repo_parts[@]}" > 0)); then
+        component="${repo_parts[*]:$index}"
+    fi
+
+    if [[ "$key" == "trusted=yes" ]]; then
+        trust="[trusted=yes]"
+    else
+        trust=""
+    fi
+
+    # Add the new repo in sources.list.d
+    mkdir --parents "/etc/apt/sources.list.d"
+    echo "deb $trust $uri $suite $component" > "/etc/apt/sources.list.d/$app.list"
+
+    # Pin the new repo with the default priority, so it won't be used for upgrades.
+    # Build $pin from the uri without http and any sub path
+    local pin="${uri#*://}"
+    pin="${pin%%/*}"
+
+    # Pin repository
+    mkdir --parents "/etc/apt/preferences.d"
+    cat << EOF > "/etc/apt/preferences.d/$app"
+Package: *
+Pin: origin $pin
+Pin-Priority: 995
+EOF
+
+    if [ -n "$key" ] && [[ "$key" != "trusted=yes" ]]; then
+        mkdir --parents "/etc/apt/trusted.gpg.d"
+        # Timeout option is here to enforce the timeout on dns query and tcp connect (c.f. man wget)
+        wget --timeout 900 --quiet "$key" --output-document=- | gpg --dearmor > /etc/apt/trusted.gpg.d/$app.gpg
+    fi
+
+    # Update the list of package with the new repo NB: we use -o
+    # Dir::Etc::sourcelist to only refresh this repo, because
+    # ynh_apt_install_dependencies will also call an ynh_apt update on its own
+    # and it's good to limit unecessary requests ...  Here we mainly want to
+    # validate that the url+key is correct before going further
+    _ynh_apt update -o Dir::Etc::sourcelist="/etc/apt/sources.list.d/$app.list"
+
+    # Install requested dependencies from this extra repository.
+    # NB: because of the mechanism with $ynh_apt_install_DEPENDENCIES_REPLACE,
+    # this will usually only *append* to the existing list of dependency, not
+    # replace the existing $app-ynh-deps
+    ynh_apt_install_dependencies "$package"
+
+    # Force to upgrade to the last version...
+    # Without doing apt install, an already installed dep is not upgraded
+    local apps_auto_installed="$(apt-mark showauto $package)"
+    _ynh_apt_install "$package"
+    [ -z "$apps_auto_installed" ] || apt-mark auto $apps_auto_installed
+
+    # Remove this extra repository after packages are installed
+    ynh_safe_rm "/etc/apt/sources.list.d/$app.list"
+    ynh_safe_rm "/etc/apt/preferences.d/$app"
+    ynh_safe_rm "/etc/apt/trusted.gpg.d/$app.gpg"
+    _ynh_apt update
+}
+
+# #####################
+# Internal misc utils #
+# #####################
+
+# Check if apt is free to use, or wait, until timeout.
+_ynh_wait_dpkg_free() {
+    local try
+    set +o xtrace # set +x
+    # With seq 1 17, timeout will be almost 30 minutes
+    for try in $(seq 1 17); do
+        # Check if /var/lib/dpkg/lock is used by another process
+        if lsof /var/lib/dpkg/lock > /dev/null; then
+            echo "apt is already in use..."
+            # Sleep an exponential time at each round
+            sleep $((try * try))
+        else
+            # Check if dpkg hasn't been interrupted and is fully available.
+            # See this for more information: https://sources.debian.org/src/apt/1.4.9/apt-pkg/deb/debsystem.cc/#L141-L174
+            local dpkg_dir="/var/lib/dpkg/updates/"
+
+            # For each file in $dpkg_dir
+            while read dpkg_file <&9; do
+                # Check if the name of this file contains only numbers.
+                if echo "$dpkg_file" | grep --perl-regexp --quiet "^[[:digit:]]+$"; then
+                    # If so, that a remaining of dpkg.
+                    ynh_print_warn "dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem."
+                    set -o xtrace # set -x
+                    return 1
+                fi
+            done 9<<< "$(ls -1 $dpkg_dir)"
+            set -o xtrace # set -x
+            return 0
+        fi
+    done
+    echo "apt still used, but timeout reached !"
+    set -o xtrace # set -x
+}
+
+# Check either a package is installed or not
+_ynh_apt_package_is_installed() {
+    local package=$1
+    dpkg-query --show --showformat='${db:Status-Status}' "$package" 2> /dev/null \
+        | grep --quiet "^installed$" &> /dev/null
+}
+
+# Return the installed version of an apt package, if installed
+_ynh_apt_package_version() {
+    if _ynh_apt_package_is_installed "$package"; then
+        dpkg-query --show --showformat='${Version}' "$package" 2> /dev/null
+    else
+        echo ''
+    fi
+}
+
+# APT wrapper for non-interactive operation
+_ynh_apt() {
+    _ynh_wait_dpkg_free
+    LC_ALL=C DEBIAN_FRONTEND=noninteractive apt-get --assume-yes --quiet -o=Acquire::Retries=3 -o=Dpkg::Use-Pty=0 $@
+}
+
+# Wrapper around "apt install" with the appropriate options
+_ynh_apt_install() {
+    _ynh_apt --no-remove --option Dpkg::Options::=--force-confdef \
+        --option Dpkg::Options::=--force-confold install $@
+}

helpers/helpers.v2.1.d/backup

@@ -0,0 +1,272 @@
+#!/bin/bash
+
+CAN_BIND=${CAN_BIND:-1}
+
+# Add a file or a directory to the list of paths to backup
+#
+# usage: ynh_backup /path/to/stuff
+#
+# NB : note that this helper does *NOT* perform any copy in itself, it only
+# declares stuff to be backuped via a CSV which is later picked up by the core
+#
+# NB 2 : there is a specific behavior for $data_dir (or childs of $data_dir) and
+# /var/log/$app which are *NOT* backedup during safety-backup-before-upgrade,
+# OR if the setting "do_not_backup_data" is equals 1 for that app
+#
+# The rationale is that these directories are usually too heavy to be integrated in every backup
+# (think for example about Nextcloud with quite a lot of data, or an app with a lot of media files...)
+#
+# This is coupled to the fact that $data_dir and the log dir won't be (and
+# should NOT) be deleted during remove, unless --purge is used. Hence, if the
+# upgrade fails and the script is removed prior to restoring the backup, the
+# data/logs are not destroyed.
+#
+ynh_backup() {
+
+    local target="$1"
+    local is_data=false
+
+    # If the path starts with /var/log/$app or $data_dir
+    if ([[ -n "${app:-}" ]] && [[ "$target" == "/var/log/$app*" ]]) || ([[ -n "${data_dir:-}" ]] && [[ "$target" == "$data_dir*" ]]); then
+        is_data=true
+    fi
+
+    if [[ -n "${app:-}" ]]; then
+        local do_not_backup_data=$(ynh_app_setting_get --key=do_not_backup_data)
+    fi
+
+    # If backing up core only (used by ynh_backup_before_upgrade),
+    # don't backup big data items
+    if [[ "$is_data" == true ]] && ([[ ${do_not_backup_data:-0} -eq 1 ]] || [[ ${BACKUP_CORE_ONLY:-0} -eq 1 ]]); then
+        if [ $BACKUP_CORE_ONLY -eq 1 ]; then
+            ynh_print_info "$target will not be saved, because 'BACKUP_CORE_ONLY' is set."
+        else
+            ynh_print_info "$target will not be saved, because 'do_not_backup_data' is set."
+        fi
+        return 1
+    fi
+
+    # ==============================================================================
+    # Format correctly source and destination paths
+    # ==============================================================================
+    # Be sure the source path is not empty
+    if [ ! -e "$target" ]; then
+        ynh_print_warn "File or folder '${target}' to be backed up does not exist"
+        return 1
+    fi
+
+    # Transform the source path as an absolute path
+    # If it's a dir remove the ending /
+    src_path=$(realpath "$target")
+
+    # Initialize the dest path with the source path relative to "/".
+    # eg: src_path=/etc/yunohost -> dest_path=etc/yunohost
+    dest_path="${src_path#/}"
+
+    # Check if dest_path already exists in tmp archive
+    if [[ -e "${dest_path}" ]]; then
+        ynh_print_warn "Destination path '${dest_path}' already exist"
+        return 1
+    fi
+
+    # Add the relative current working directory to the destination path
+    local rel_dir="${YNH_CWD#$YNH_BACKUP_DIR}"
+    rel_dir="${rel_dir%/}/"
+    dest_path="${rel_dir}${dest_path}"
+    dest_path="${dest_path#/}"
+    # ==============================================================================
+
+    # ==============================================================================
+    # Write file to backup into backup_list
+    # ==============================================================================
+    local src=$(echo "${src_path}" | sed --regexp-extended 's/"/\"\"/g')
+    local dest=$(echo "${dest_path}" | sed --regexp-extended 's/"/\"\"/g')
+    echo "\"${src}\",\"${dest}\"" >> "${YNH_BACKUP_CSV}"
+
+    # ==============================================================================
+
+    # Create the parent dir of the destination path
+    # It's for retro compatibility, some script consider ynh_backup creates this dir
+    mkdir --parents $(dirname "$YNH_BACKUP_DIR/${dest_path}")
+}
+
+# Return the path in the archive where has been stocked the origin path
+#
+# [internal]
+#
+# usage: _get_archive_path ORIGIN_PATH
+_get_archive_path() {
+    # For security reasons we use csv python library to read the CSV
+    python3 -c "
+import sys
+import csv
+with open(sys.argv[1], 'r') as backup_file:
+    backup_csv = csv.DictReader(backup_file, fieldnames=['source', 'dest'])
+    for row in backup_csv:
+        if row['source']==sys.argv[2].strip('\"'):
+            print(row['dest'])
+            sys.exit(0)
+    raise Exception('Original path for %s not found' % sys.argv[2])
+    " "${YNH_BACKUP_CSV}" "$1"
+    return $?
+}
+
+# Restore a file or a directory from the backup archive
+#
+# usage: ynh_restore /path/to/stuff
+#
+# examples:
+#     ynh_restore "/etc/nginx/conf.d/$domain.d/$app.conf"
+#
+# If the file or dir to be restored already exists on the system and is lighter
+# than 500 Mo, it is backed up in `/var/cache/yunohost/appconfbackup/`.
+# Otherwise, the existing file or dir is removed.
+#
+# if `apps/$app/etc/nginx/conf.d/$domain.d/$app.conf` exists, restore it into
+# `/etc/nginx/conf.d/$domain.d/$app.conf`
+# otheriwse, search for a match in the csv (eg: conf/nginx.conf) and restore it into
+# `/etc/nginx/conf.d/$domain.d/$app.conf`
+ynh_restore() {
+    target="$1"
+
+    local archive_path="$YNH_CWD${target}"
+
+    # If the path starts with /var/log/$app or $data_dir
+    local is_data=false
+    if ([[ -n "${app:-}" ]] && [[ "$target" == "/var/log/$app*" ]]) || ([[ -n "${data_dir:-}" ]] && [[ "$target" == "$data_dir*" ]]); then
+        is_data=true
+    fi
+
+    # If archive_path doesn't exist, search for a corresponding path in CSV
+    if [ ! -d "$archive_path" ] && [ ! -f "$archive_path" ] && [ ! -L "$archive_path" ]; then
+        if [[ "$is_data" == true ]]; then
+            ynh_print_info "Skipping $target which doesn't exists in the archive, probably because restoring from a safety-backup-before-upgrade"
+            # Assume it's not a big deal, we may be restoring a safety-backup-before-upgrade which doesnt contain those
+            return 0
+        else
+            # (get_archive_path will raise an exception if no match found)
+            archive_path="$YNH_BACKUP_DIR/$(_get_archive_path \"$target\")"
+        fi
+    fi
+
+    # Move the old directory if it already exists
+    if [[ -e "${target}" ]]; then
+        # Check if the file/dir size is less than 500 Mo
+        if [[ $(du --summarize --bytes ${target} | cut --delimiter="/" --fields=1) -le "500000000" ]]; then
+            local backup_file="/var/cache/yunohost/appconfbackup/${target}.backup.$(date '+%Y%m%d.%H%M%S')"
+            mkdir --parents "$(dirname "$backup_file")"
+            mv "${target}" "$backup_file" # Move the current file or directory
+        else
+            ynh_safe_rm "${target}"
+        fi
+    fi
+
+    # Restore target into target
+    mkdir --parents $(dirname "$target")
+
+    # Do a copy if it's just a mounting point
+    if mountpoint --quiet $YNH_BACKUP_DIR; then
+        if [[ -d "${archive_path}" ]]; then
+            archive_path="${archive_path}/."
+            mkdir --parents "$target"
+        fi
+        cp --archive "$archive_path" "${target}"
+    # Do a move if YNH_BACKUP_DIR is already a copy
+    else
+        mv "$archive_path" "${target}"
+    fi
+
+    _ynh_apply_default_permissions "$target"
+}
+
+# Restore all files that were previously backuped in an app backup script
+#
+# usage: ynh_restore_everything
+ynh_restore_everything() {
+    # Deduce the relative path of $YNH_CWD
+    local REL_DIR="${YNH_CWD#$YNH_BACKUP_DIR/}"
+    REL_DIR="${REL_DIR%/}/"
+
+    # For each destination path begining by $REL_DIR
+    cat ${YNH_BACKUP_CSV} | tr --delete $'\r' | grep --only-matching --no-filename --perl-regexp "^\".*\",\"$REL_DIR.*\"$" \
+        | while read line; do
+            local ARCHIVE_PATH=$(echo "$line" | grep --only-matching --no-filename --perl-regexp "^\"\K.*(?=\",\"$REL_DIR.*\"$)")
+            ynh_restore "$ARCHIVE_PATH"
+        done
+}
+
+_ynh_file_checksum_exists() {
+    local file=$1
+    local checksum_setting_name=checksum_${file//[\/ ]/_} # Replace all '/' and ' ' by '_'
+    [[ -n "$(ynh_app_setting_get --key=$checksum_setting_name)" ]]
+}
+
+# Calculate and store a file checksum into the app settings
+#
+# usage: ynh_store_file_checksum /path/to/file
+ynh_store_file_checksum() {
+    set +o xtrace # set +x
+    local file=$1
+    local checksum_setting_name=checksum_${file//[\/ ]/_} # Replace all '/' and ' ' by '_'
+
+    ynh_app_setting_set --key=$checksum_setting_name --value=$(md5sum "$file" | cut --delimiter=' ' --fields=1)
+
+    if ynh_in_ci_tests; then
+        # Using a base64 is in fact more reversible than "replace / and space by _" ... So we can in fact obtain the original file path in an easy reliable way ...
+        local file_path_base64=$(echo "$file" | base64 -w0)
+        mkdir -p /var/cache/yunohost/appconfbackup/
+        cat $file > /var/cache/yunohost/appconfbackup/original_${file_path_base64}
+    fi
+
+    # If backup_file_checksum isn't empty, ynh_backup_if_checksum_is_different has made a backup
+    if [ -n "${backup_file_checksum-}" ]; then
+        # Print the diff between the previous file and the new one.
+        # diff return 1 if the files are different, so the || true
+        diff --report-identical-files --unified --color=always $backup_file_checksum $file >&2 || true
+    fi
+    # Unset the variable, so it wouldn't trig a ynh_store_file_checksum without a ynh_backup_if_checksum_is_different before it.
+    unset backup_file_checksum
+    set -o xtrace # set -x
+}
+
+# Verify the checksum and backup the file if it's different
+#
+# usage: ynh_backup_if_checksum_is_different /path/to/file
+#
+# This helper is primarily meant to allow to easily backup personalised/manually
+# modified config files.
+ynh_backup_if_checksum_is_different() {
+    set +o xtrace # set +x
+    local file=$1
+    local checksum_setting_name=checksum_${file//[\/ ]/_} # Replace all '/' and ' ' by '_'
+    local checksum_value=$(ynh_app_setting_get --key=$checksum_setting_name)
+    # backup_file_checksum isn't declare as local, so it can be reuse by ynh_store_file_checksum
+    backup_file_checksum=""
+    if [ -n "$checksum_value" ]; then                                                     # Proceed only if a value was stored into the app settings
+        if [ -e $file ] && ! echo "$checksum_value $file" | md5sum --check --status; then # If the checksum is now different
+
+            backup_file_checksum="/var/cache/yunohost/appconfbackup/$file.backup.$(date '+%Y%m%d.%H%M%S')"
+            mkdir --parents "$(dirname "$backup_file_checksum")"
+            cp --archive "$file" "$backup_file_checksum" # Backup the current file
+            ynh_print_warn "File $file has been manually modified since the installation or last upgrade. So it has been duplicated in $backup_file_checksum"
+            echo "$backup_file_checksum" # Return the name of the backup file
+            if ynh_in_ci_tests; then
+                local file_path_base64=$(echo "$file" | base64 -w0)
+                if test -e /var/cache/yunohost/appconfbackup/original_${file_path_base64}; then
+                    ynh_print_warn "Diff with the original file:"
+                    diff --report-identical-files --unified --color=always /var/cache/yunohost/appconfbackup/original_${file_path_base64} $file >&2 || true
+                fi
+            fi
+        fi
+    fi
+    set -o xtrace # set -x
+}
+
+# Delete a file checksum from the app settings
+#
+# usage: ynh_delete_file_checksum /path/to/file
+ynh_delete_file_checksum() {
+    local file=$1
+    local checksum_setting_name=checksum_${file//[\/ ]/_} # Replace all '/' and ' ' by '_'
+    ynh_app_setting_delete --key=$checksum_setting_name
+}

helpers/helpers.v2.1.d/composer

@@ -0,0 +1,45 @@
+#!/bin/bash
+
+# Install and initialize Composer in the given directory
+#
+# The installed version is defined by `$composer_version` which should be defined
+# as global prior to calling this helper.
+#
+# Will use `$install_dir` as workdir unless `$composer_workdir` exists (but that shouldnt be necessary)
+#
+# usage: ynh_composer_install
+ynh_composer_install() {
+    local workdir="${composer_workdir:-$install_dir}"
+
+    [[ -n "${composer_version}" ]] || ynh_die "\$composer_version should be defined before calling ynh_composer_install. (In the past, this was called \$YNH_COMPOSER_VERSION)"
+
+    [[ ! -e "$workdir/composer.phar" ]] || ynh_safe_rm $workdir/composer.phar
+
+    local composer_url="https://getcomposer.org/download/$composer_version/composer.phar"
+
+    # NB. we have to declare the var as local first,
+    # otherwise 'local foo=$(false) || echo 'pwet'" does'nt work
+    # because local always return 0 ...
+    local out
+    # Timeout option is here to enforce the timeout on dns query and tcp connect (c.f. man wget)
+    out=$(wget --tries 3 --no-dns-cache --timeout 900 --no-verbose --output-document=$workdir/composer.phar $composer_url 2>&1) \
+        || ynh_die "$out"
+}
+
+# Execute a command with Composer
+#
+# Will use `$install_dir` as workdir unless `$composer_workdir` exists (but that shouldnt be necessary)
+#
+# You may also define `composer_user=root` prior to call this helper if you
+# absolutely need composer to run as root, but this is discouraged...
+#
+# usage: ynh_composer_exec commands
+ynh_composer_exec() {
+    local workdir="${composer_workdir:-$install_dir}"
+
+    COMPOSER_HOME="$workdir/.composer" \
+        COMPOSER_MEMORY_LIMIT=-1 \
+        sudo -E -u "${composer_user:-$app}" \
+        php${php_version} "$workdir/composer.phar" $@ \
+        -d "$workdir" --no-interaction --no-ansi 2>&1
+}

helpers/helpers.v2.1.d/config

@@ -0,0 +1,309 @@
+#!/bin/bash
+
+_ynh_app_config_get_one() {
+    local short_setting="$1"
+    local type="$2"
+    local bind="$3"
+    local getter="get__${short_setting}"
+    # Get value from getter if exists
+    if type -t $getter 2> /dev/null | grep -q '^function$' 2> /dev/null; then
+        old[$short_setting]="$($getter)"
+        formats[${short_setting}]="yaml"
+
+    elif [[ "$bind" == *"("* ]] && type -t "get__${bind%%(*}" 2> /dev/null | grep -q '^function$' 2> /dev/null; then
+        old[$short_setting]="$("get__${bind%%(*}" $short_setting $type $bind)"
+        formats[${short_setting}]="yaml"
+
+    elif [[ "$bind" == "null" ]]; then
+        old[$short_setting]="YNH_NULL"
+
+    # Get value from app settings or from another file
+    elif [[ "$type" == "file" ]]; then
+        if [[ "$bind" == "settings" ]]; then
+            ynh_die "File '${short_setting}' can't be stored in settings"
+        fi
+        old[$short_setting]="$(ls "$bind" 2> /dev/null || echo YNH_NULL)"
+        file_hash[$short_setting]="true"
+
+    # Get multiline text from settings or from a full file
+    elif [[ "$type" == "text" ]]; then
+        if [[ "$bind" == "settings" ]]; then
+            old[$short_setting]="$(ynh_app_setting_get $app $short_setting)"
+        elif [[ "$bind" == *":"* ]]; then
+            ynh_die "For technical reasons, multiline text '${short_setting}' can't be stored automatically  in a variable file, you have to create custom getter/setter"
+        else
+            old[$short_setting]="$(cat "$bind" 2> /dev/null || echo YNH_NULL)"
+        fi
+
+    # Get value from a kind of key/value file
+    else
+        local bind_after=""
+        if [[ "$bind" == "settings" ]]; then
+            bind=":/etc/yunohost/apps/$app/settings.yml"
+        fi
+        local bind_key_="$(echo "$bind" | cut -d: -f1)"
+        bind_key_=${bind_key_:-$short_setting}
+        if [[ "$bind_key_" == *">"* ]]; then
+            bind_after="$(echo "${bind_key_}" | cut -d'>' -f1)"
+            bind_key_="$(echo "${bind_key_}" | cut -d'>' -f2)"
+        fi
+        local bind_file="$(echo "$bind" | cut -d: -f2)"
+        old[$short_setting]="$(ynh_read_var_in_file --file="${bind_file}" --key="${bind_key_}" --after="${bind_after}")"
+
+    fi
+}
+_ynh_app_config_apply_one() {
+    local short_setting="$1"
+    local setter="set__${short_setting}"
+    local bind="${binds[$short_setting]}"
+    local type="${types[$short_setting]}"
+    if [ "${changed[$short_setting]}" == "true" ]; then
+        # Apply setter if exists
+        if type -t $setter 2> /dev/null | grep -q '^function$' 2> /dev/null; then
+            $setter
+
+        elif [[ "$bind" == *"("* ]] && type -t "set__${bind%%(*}" 2> /dev/null | grep -q '^function$' 2> /dev/null; then
+            "set__${bind%%(*}" $short_setting $type $bind
+
+        elif [[ "$bind" == "null" ]]; then
+            return
+
+        # Save in a file
+        elif [[ "$type" == "file" ]]; then
+            if [[ "$bind" == "settings" ]]; then
+                ynh_die "File '${short_setting}' can't be stored in settings"
+            fi
+            local bind_file="$bind"
+            if [[ "${!short_setting}" == "" ]]; then
+                ynh_backup_if_checksum_is_different "$bind_file"
+                ynh_safe_rm "$bind_file"
+                ynh_delete_file_checksum "$bind_file"
+                ynh_print_info "File '$bind_file' removed"
+            else
+                ynh_backup_if_checksum_is_different "$bind_file"
+                if [[ "${!short_setting}" != "$bind_file" ]]; then
+                    cp "${!short_setting}" "$bind_file"
+                fi
+                if _ynh_file_checksum_exists "$bind_file"; then
+                    ynh_store_file_checksum "$bind_file"
+                fi
+                ynh_print_info "File '$bind_file' overwritten with ${!short_setting}"
+            fi
+
+        # Save value in app settings
+        elif [[ "$bind" == "settings" ]]; then
+            ynh_app_setting_set --key=$short_setting --value="${!short_setting}"
+            ynh_print_info "Configuration key '$short_setting' edited in app settings"
+
+        # Save multiline text in a file
+        elif [[ "$type" == "text" ]]; then
+            if [[ "$bind" == *":"* ]]; then
+                ynh_die "For technical reasons, multiline text '${short_setting}' can't be stored automatically  in a variable file, you have to create custom getter/setter"
+            fi
+            local bind_file="$bind"
+            ynh_backup_if_checksum_is_different "$bind_file"
+            echo "${!short_setting}" > "$bind_file"
+            if _ynh_file_checksum_exists "$bind_file"; then
+                ynh_store_file_checksum "$bind_file"
+            fi
+            ynh_print_info "File '$bind_file' overwritten with the content provided in question '${short_setting}'"
+
+        # Set value into a kind of key/value file
+        else
+            local bind_after=""
+            local bind_key_="$(echo "$bind" | cut -d: -f1)"
+            if [[ "$bind_key_" == *">"* ]]; then
+                bind_after="$(echo "${bind_key_}" | cut -d'>' -f1)"
+                bind_key_="$(echo "${bind_key_}" | cut -d'>' -f2)"
+            fi
+            bind_key_=${bind_key_:-$short_setting}
+            local bind_file="$(echo "$bind" | cut -d: -f2)"
+
+            ynh_backup_if_checksum_is_different "$bind_file"
+            ynh_write_var_in_file --file="${bind_file}" --key="${bind_key_}" --value="${!short_setting}" --after="${bind_after}"
+            if _ynh_file_checksum_exists "$bind_file"; then
+                ynh_store_file_checksum "$bind_file"
+            fi
+
+            # We stored the info in settings in order to be able to upgrade the app
+            ynh_app_setting_set --key=$short_setting --value="${!short_setting}"
+            ynh_print_info "Configuration key '$bind_key_' edited into $bind_file"
+
+        fi
+    fi
+}
+
+_ynh_app_config_get() {
+    for line in $YNH_APP_CONFIG_PANEL_OPTIONS_TYPES_AND_BINDS; do
+        # Split line into short_setting, type and bind
+        IFS='|' read short_setting type bind <<< "$line"
+        binds[${short_setting}]="$bind"
+        types[${short_setting}]="$type"
+        file_hash[${short_setting}]=""
+        formats[${short_setting}]=""
+        ynh_app_config_get_one $short_setting $type $bind
+    done
+}
+
+_ynh_app_config_apply() {
+    for short_setting in "${!old[@]}"; do
+        ynh_app_config_apply_one $short_setting
+    done
+}
+
+_ynh_app_config_show() {
+    for short_setting in "${!old[@]}"; do
+        if [[ "${old[$short_setting]}" != YNH_NULL ]]; then
+            if [[ "${formats[$short_setting]}" == "yaml" ]]; then
+                ynh_return "${short_setting}:"
+                ynh_return "$(echo "${old[$short_setting]}" | sed 's/^/  /g')"
+            else
+                ynh_return "${short_setting}: '$(echo "${old[$short_setting]}" | sed "s/'/''/g" | sed ':a;N;$!ba;s/\n/\n\n/g')'"
+            fi
+        fi
+    done
+}
+
+_ynh_app_config_validate() {
+    # Change detection
+    ynh_script_progression "Checking what changed in the new configuration..."
+    local nothing_changed=true
+    local changes_validated=true
+    for short_setting in "${!old[@]}"; do
+        changed[$short_setting]=false
+        if [ -z ${!short_setting+x} ]; then
+            # Assign the var with the old value in order to allows multiple
+            # args validation
+            declare -g "$short_setting"="${old[$short_setting]}"
+            continue
+        fi
+        if [ ! -z "${file_hash[${short_setting}]}" ]; then
+            file_hash[old__$short_setting]=""
+            file_hash[new__$short_setting]=""
+            if [ -f "${old[$short_setting]}" ]; then
+                file_hash[old__$short_setting]=$(sha256sum "${old[$short_setting]}" | cut -d' ' -f1)
+                if [ -z "${!short_setting}" ]; then
+                    changed[$short_setting]=true
+                    nothing_changed=false
+                fi
+            fi
+            if [ -f "${!short_setting}" ]; then
+                file_hash[new__$short_setting]=$(sha256sum "${!short_setting}" | cut -d' ' -f1)
+                if [[ "${file_hash[old__$short_setting]}" != "${file_hash[new__$short_setting]}" ]]; then
+                    changed[$short_setting]=true
+                    nothing_changed=false
+                fi
+            fi
+        else
+            if [[ "${!short_setting}" != "${old[$short_setting]}" ]]; then
+                changed[$short_setting]=true
+                nothing_changed=false
+            fi
+        fi
+    done
+    if [[ "$nothing_changed" == "true" ]]; then
+        ynh_print_info "Nothing has changed"
+        exit 0
+    fi
+
+    # Run validation if something is changed
+    ynh_script_progression "Validating the new configuration..."
+
+    for short_setting in "${!old[@]}"; do
+        [[ "${changed[$short_setting]}" == "false" ]] && continue
+        local result=""
+        if type -t validate__$short_setting | grep -q '^function$' 2> /dev/null; then
+            result="$(validate__$short_setting)"
+        elif [[ "$bind" == *"("* ]] && type -t "validate__${bind%%(*}" 2> /dev/null | grep -q '^function$' 2> /dev/null; then
+            "validate__${bind%%(*}" $short_setting
+        fi
+        if [ -n "$result" ]; then
+            #
+            # Return a yaml such as:
+            #
+            # validation_errors:
+            #   some_key: "An error message"
+            #   some_other_key: "Another error message"
+            #
+            # We use changes_validated to know if this is
+            # the first validation error
+            if [[ "$changes_validated" == true ]]; then
+                ynh_return "validation_errors:"
+            fi
+            ynh_return "  ${short_setting}: \"$result\""
+            changes_validated=false
+        fi
+    done
+
+    # If validation failed, exit the script right now (instead of going into apply)
+    # Yunohost core will pick up the errors returned via ynh_return previously
+    if [[ "$changes_validated" == "false" ]]; then
+        exit 0
+    fi
+
+}
+
+ynh_app_config_get_one() {
+    _ynh_app_config_get_one $1 $2 $3
+}
+
+ynh_app_config_get() {
+    _ynh_app_config_get
+}
+
+ynh_app_config_show() {
+    _ynh_app_config_show
+}
+
+ynh_app_config_validate() {
+    _ynh_app_config_validate
+}
+
+ynh_app_config_apply_one() {
+    _ynh_app_config_apply_one $1
+}
+ynh_app_config_apply() {
+    _ynh_app_config_apply
+}
+
+ynh_app_action_run() {
+    local runner="run__$1"
+    # Get value from getter if exists
+    if type -t "$runner" 2> /dev/null | grep -q '^function$' 2> /dev/null; then
+        $runner
+        #ynh_return "result:"
+        #ynh_return "$(echo "${result}" | sed 's/^/  /g')"
+    else
+        ynh_die "No handler defined in app's script for action $1. If you are the maintainer of this app, you should define '$runner'"
+    fi
+}
+
+ynh_app_config_run() {
+    declare -Ag old=()
+    declare -Ag changed=()
+    declare -Ag file_hash=()
+    declare -Ag binds=()
+    declare -Ag types=()
+    declare -Ag formats=()
+
+    case $1 in
+        show)
+            ynh_app_config_get
+            ynh_app_config_show
+            ;;
+        apply)
+            max_progression=4
+            ynh_script_progression "Reading config panel description and current configuration..."
+            ynh_app_config_get
+
+            ynh_app_config_validate
+
+            ynh_script_progression "Applying the new configuration..."
+            ynh_app_config_apply
+            ynh_script_progression "Configuration of $app completed"
+            ;;
+        *)
+            ynh_app_action_run $1
+            ;;
+    esac
+}

helpers/helpers.v2.1.d/fail2ban

@@ -0,0 +1,118 @@
+#!/bin/bash
+
+# Create a dedicated fail2ban config (jail and filter conf files)
+#
+# usage: ynh_config_add_fail2ban --logpath=log_file --failregex=filter
+# | arg: --logpath=   - Log file to be checked by fail2ban
+# | arg: --failregex= - Failregex to be looked for by fail2ban
+#
+# If --logpath / --failregex are provided, the helper will generate the appropriate conf using these.
+#
+# Otherwise, it will assume that the app provided templates, namely
+# `../conf/f2b_jail.conf` and `../conf/f2b_filter.conf`
+#
+# They will typically look like (for example here for synapse):
+# ```
+# f2b_jail.conf:
+#     [__APP__]
+#     enabled = true
+#     port = http,https
+#     filter = __APP__
+#     logpath = /var/log/__APP__/logfile.log
+#     maxretry = 5
+# ```
+# ```
+# f2b_filter.conf:
+#     [INCLUDES]
+#     before = common.conf
+#     [Definition]
+#
+#     # Part of regex definition (just used to make more easy to make the global regex)
+#     __synapse_start_line = .? \- synapse\..+ \-
+#
+#    # Regex definition.
+#    failregex = ^%(__synapse_start_line)s INFO \- POST\-(\d+)\- <HOST> \- \d+ \- Received request\: POST /_matrix/client/r0/login\??<SKIPLINES>%(__synapse_start_line)s INFO \- POST\-\1\- Got login request with identifier: \{u'type': u'm.id.user', u'user'\: u'(.+?)'\}, medium\: None, address: None, user\: u'\5'<SKIPLINES>%(__synapse_start_line)s WARNING \- \- (Attempted to login as @\5\:.+ but they do not exist|Failed password login for user @\5\:.+)$
+#
+#     ignoreregex =
+# ```
+#
+# ##### Regarding the the `failregex` option:
+#
+# regex to match the password failure messages in the logfile. The host must be
+# matched by a group named "`host`". The tag "`<HOST>`" can be used for standard
+# IP/hostname matching and is only an alias for `(?:::f{4,6}:)?(?P<host>[\w\-.^_]+)`
+#
+# You can find some more explainations about how to make a regex here :
+# https://www.fail2ban.org/wiki/index.php/MANUAL_0_8#Filters
+#
+# To validate your regex you can test with this command:
+# ```
+# fail2ban-regex /var/log/YOUR_LOG_FILE_PATH /etc/fail2ban/filter.d/YOUR_APP.conf
+# ```
+ynh_config_add_fail2ban() {
+    # ============ Argument parsing =============
+    local -A args_array=([l]=logpath= [r]=failregex=)
+    local logpath
+    local failregex
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    # If failregex is provided, Build a config file on-the-fly using $logpath and $failregex
+    if [[ -n "${failregex:-}" ]]; then
+        test -n "$logpath" || ynh_die "ynh_config_add_fail2ban expects a logfile path as first argument and received nothing."
+
+        echo "
+[__APP__]
+enabled = true
+port = http,https
+filter = __APP__
+logpath = __LOGPATH__
+maxretry = 5
+" > "$YNH_APP_BASEDIR/conf/f2b_jail.conf"
+
+        echo "
+[INCLUDES]
+before = common.conf
+[Definition]
+failregex = __FAILREGEX__
+ignoreregex =
+" > "$YNH_APP_BASEDIR/conf/f2b_filter.conf"
+    fi
+
+    ynh_config_add --template="f2b_jail.conf" --destination="/etc/fail2ban/jail.d/$app.conf"
+    ynh_config_add --template="f2b_filter.conf" --destination="/etc/fail2ban/filter.d/$app.conf"
+
+    # if "$logpath" doesn't exist (as if using --use_template argument), assign
+    # "$logpath" using the one in the previously generated fail2ban conf file
+    if [ -z "${logpath:-}" ]; then
+        # the first sed deletes possibles spaces and the second one extract the path
+        logpath=$(grep "^logpath" "/etc/fail2ban/jail.d/$app.conf" | sed "s/ //g" | sed "s/logpath=//g")
+    fi
+
+    # Create the folder and logfile if they doesn't exist,
+    # as fail2ban require an existing logfile before configuration
+    mkdir -p "/var/log/$app"
+    if [ ! -f "$logpath" ]; then
+        touch "$logpath"
+    fi
+    # Make sure log folder's permissions are correct
+    chown -R "$app:$app" "/var/log/$app"
+    chmod -R u=rwX,g=rX,o= "/var/log/$app"
+
+    ynh_systemctl --service=fail2ban --action=reload --wait_until="(Started|Reloaded) Fail2Ban Service" --log_path=systemd
+
+    local fail2ban_error="$(journalctl --no-hostname --unit=fail2ban | tail --lines=50 | grep "WARNING.*$app.*")"
+    if [[ -n "$fail2ban_error" ]]; then
+        ynh_print_warn "Fail2ban failed to load the jail for $app"
+        ynh_print_warn "${fail2ban_error#*WARNING}"
+    fi
+}
+
+# Remove the dedicated fail2ban config (jail and filter conf files)
+#
+# usage: ynh_config_remove_fail2ban
+ynh_config_remove_fail2ban() {
+    ynh_safe_rm "/etc/fail2ban/jail.d/$app.conf"
+    ynh_safe_rm "/etc/fail2ban/filter.d/$app.conf"
+    ynh_systemctl --service=fail2ban --action=reload
+}

helpers/helpers.v2.1.d/getopts

@@ -0,0 +1,186 @@
+#!/bin/bash
+
+# Internal helper design to allow helpers to use getopts to manage their arguments
+#
+# [internal]
+#
+# example: function my_helper()
+# {
+#     local -A args_array=( [a]=arg1= [b]=arg2= [c]=arg3 )
+#     local arg1
+#     local arg2
+#     local arg3
+#     ynh_handle_getopts_args "$@"
+#
+#     [...]
+# }
+# my_helper --arg1 "val1" -b val2 -c
+#
+# usage: ynh_handle_getopts_args "$@"
+# | arg: $@    - Simply "$@" to tranfert all the positionnal arguments to the function
+#
+# This helper need an array, named "args_array" with all the arguments used by the helper
+# that want to use ynh_handle_getopts_args
+# Be carreful, this array has to be an associative array, as the following example:
+# local -A args_array=( [a]=arg1 [b]=arg2= [c]=arg3 )
+# Let's explain this array:
+# a, b and c are short options, -a, -b and -c
+# arg1, arg2 and arg3 are the long options associated to the previous short ones. --arg1, --arg2 and --arg3
+# For each option, a short and long version has to be defined.
+# Let's see something more significant
+# local -A args_array=( [u]=user [f]=finalpath= [d]=database )
+#
+# NB: Because we're using 'declare' without -g, the array will be declared as a local variable.
+#
+# Please keep in mind that the long option will be used as a variable to store the values for this option.
+# For the previous example, that means that $finalpath will be fill with the value given as argument for this option.
+#
+# Also, in the previous example, finalpath has a '=' at the end. That means this option need a value.
+# So, the helper has to be call with --finalpath /final/path, --finalpath=/final/path or -f /final/path, the variable $finalpath will get the value /final/path
+# If there's many values for an option, -f /final /path, the value will be separated by a ';' $finalpath=/final;/path
+# For an option without value, like --user in the example, the helper can be called only with --user or -u. $user will then get the value 1.
+#
+ynh_handle_getopts_args() {
+    # Trick to only re-enable debugging if it was set before
+    local xtrace_enable=$(set +o | grep xtrace)
+
+    # Manage arguments only if there's some provided
+    set +o xtrace # set +x
+    if [ $# -eq 0 ]; then
+        eval "$xtrace_enable"
+        return
+    # Validate that the first char is - because it should be something like --option=value or -o ...
+    elif [[ "${1:0:1}" != "-" ]]; then
+        ynh_die "It looks like you called the helper using positional arguments instead of keyword arguments ?"
+    fi
+
+    # Store arguments in an array to keep each argument separated
+    local arguments=("$@")
+
+    # For each option in the array, reduce to short options for getopts (e.g. for [u]=user, --user will be -u)
+    # And built parameters string for getopts
+    # ${!args_array[@]} is the list of all option_flags in the array (An option_flag is 'u' in [u]=user, user is a value)
+    local getopts_parameters=""
+    local option_flag=""
+    for option_flag in "${!args_array[@]}"; do
+        # Concatenate each option_flags of the array to build the string of arguments for getopts
+        # Will looks like 'abcd' for -a -b -c -d
+        # If the value of an option_flag finish by =, it's an option with additionnal values. (e.g. --user bob or -u bob)
+        # Check the last character of the value associate to the option_flag
+        if [ "${args_array[$option_flag]: -1}" = "=" ]; then
+            # For an option with additionnal values, add a ':' after the letter for getopts.
+            getopts_parameters="${getopts_parameters}${option_flag}:"
+        else
+            getopts_parameters="${getopts_parameters}${option_flag}"
+        fi
+        # Check each argument given to the function
+        local arg=""
+        # ${#arguments[@]} is the size of the array
+        for arg in $(seq 0 $((${#arguments[@]} - 1))); do
+            # Escape options' values starting with -. Otherwise the - will be considered as another option.
+            arguments[arg]="${arguments[arg]//--${args_array[$option_flag]}-/--${args_array[$option_flag]}\\TOBEREMOVED\\-}"
+            # And replace long option (value of the option_flag) by the short option, the option_flag itself
+            # (e.g. for [u]=user, --user will be -u)
+            # Replace long option with = (match the beginning of the argument)
+            arguments[arg]="$(printf '%s\n' "${arguments[arg]}" | sed "s/^--${args_array[$option_flag]}/-${option_flag} /")"
+            # And long option without = (match the whole line)
+            arguments[arg]="$(printf '%s\n' "${arguments[arg]}" | sed "s/^--${args_array[$option_flag]%=}$/-${option_flag} /")"
+        done
+    done
+
+    # Read and parse all the arguments
+    # Use a function here, to use standart arguments $@ and be able to use shift.
+    parse_arg() {
+        # Read all arguments, until no arguments are left
+        while [ $# -ne 0 ]; do
+            # Initialize the index of getopts
+            OPTIND=1
+            # Parse with getopts only if the argument begin by -, that means the argument is an option
+            # getopts will fill $parameter with the letter of the option it has read.
+            local parameter=""
+            getopts ":$getopts_parameters" parameter || true
+
+            if [ "$parameter" = "?" ]; then
+                ynh_die "Invalid argument: ${1:-}"
+            elif [ "$parameter" = ":" ]; then
+                ynh_die "${1:-} parameter requires an argument."
+            else
+                local shift_value=1
+                # Use the long option, corresponding to the short option read by getopts, as a variable
+                # (e.g. for [u]=user, 'user' will be used as a variable)
+                # Also, remove '=' at the end of the long option
+                # The variable name will be stored in 'option_var'
+                local option_var="${args_array[$parameter]%=}"
+                # If this option doesn't take values
+                # if there's a '=' at the end of the long option name, this option takes values
+                if [ "${args_array[$parameter]: -1}" != "=" ]; then
+                    # 'eval ${option_var}' will use the content of 'option_var'
+                    eval ${option_var}=1
+                else
+                    # Read all other arguments to find multiple value for this option.
+                    # Load args in a array
+                    local all_args=("$@")
+
+                    # If the first argument is longer than 2 characters,
+                    # There's a value attached to the option, in the same array cell
+                    if [ ${#all_args[0]} -gt 2 ]; then
+                        # Remove the option and the space, so keep only the value itself.
+                        all_args[0]="${all_args[0]#-${parameter} }"
+
+                        # At this point, if all_args[0] start with "-", then the argument is not well formed
+                        if [ "${all_args[0]:0:1}" == "-" ]; then
+                            ynh_die "Argument \"${all_args[0]}\" not valid! Did you use a single \"-\" instead of two?"
+                        fi
+                        # Reduce the value of shift, because the option has been removed manually
+                        shift_value=$((shift_value - 1))
+                    fi
+
+                    # Declare the content of option_var as a variable.
+                    eval ${option_var}=""
+                    # Then read the array value per value
+                    local i
+                    for i in $(seq 0 $((${#all_args[@]} - 1))); do
+                        # If this argument is an option, end here.
+                        if [ "${all_args[$i]:0:1}" == "-" ]; then
+                            # Ignore the first value of the array, which is the option itself
+                            if [ "$i" -ne 0 ]; then
+                                break
+                            fi
+                        else
+                            # Ignore empty parameters
+                            if [ -n "${all_args[$i]}" ]; then
+                                # Else, add this value to this option
+                                # Each value will be separated by ';'
+                                if [ -n "${!option_var}" ]; then
+                                    # If there's already another value for this option, add a ; before adding the new value
+                                    eval ${option_var}+="\;"
+                                fi
+
+                                # Remove the \ that escape - at beginning of values.
+                                all_args[i]="${all_args[i]//\\TOBEREMOVED\\/}"
+
+                                # For the record.
+                                # We're using eval here to get the content of the variable stored itself as simple text in $option_var...
+                                # Other ways to get that content would be to use either ${!option_var} or declare -g ${option_var}
+                                # But... ${!option_var} can't be used as left part of an assignation.
+                                # declare -g ${option_var} will create a local variable (despite -g !) and will not be available for the helper itself.
+                                # So... Stop fucking arguing each time that eval is evil... Go find an other working solution if you can find one!
+
+                                eval ${option_var}+='"${all_args[$i]}"'
+                            fi
+                            shift_value=$((shift_value + 1))
+                        fi
+                    done
+                fi
+            fi
+
+            # Shift the parameter and its argument(s)
+            shift $shift_value
+        done
+    }
+
+    # Call parse_arg and pass the modified list of args as an array of arguments.
+    parse_arg "${arguments[@]}"
+
+    eval "$xtrace_enable"
+}

helpers/helpers.v2.1.d/go

@@ -0,0 +1,190 @@
+#!/bin/bash
+
+readonly GOENV_INSTALL_DIR="/opt/goenv"
+# goenv_ROOT is the directory of goenv, it needs to be loaded as a environment variable.
+export GOENV_ROOT="$GOENV_INSTALL_DIR"
+
+_ynh_load_go_in_path_and_other_tweaks() {
+
+    # Get the absolute path of this version of go
+    go_dir="$GOENV_INSTALL_DIR/versions/$app/bin"
+
+    # Load the path of this version of go in $PATH
+    if [[ :$PATH: != *":$go_dir"* ]]; then
+        PATH="$go_dir:$PATH"
+    fi
+
+    # Export PATH such that it's available through sudo -E / ynh_exec_as $app
+    export PATH
+
+    # This is in full lowercase such that it gets replaced in templates
+    path_with_go="$PATH"
+    PATH_with_go="$PATH"
+
+    # Sets the local application-specific go version
+    pushd ${install_dir}
+    $GOENV_INSTALL_DIR/bin/goenv local $go_version
+    popd
+}
+
+# Install a specific version of Go using goenv
+#
+# The installed version is defined by `$go_version` which should be defined as global prior to calling this helper
+#
+# usage: ynh_go_install
+#
+# The helper adds the appropriate, specific version of go to the `$PATH` variable (which
+# is preserved when calling `ynh_exec_as_app`). Also defines:
+# - `$path_with_go` (the value of the modified `$PATH`, but you dont really need it?)
+# - `$go_dir` (the directory containing the specific go version)
+#
+# This helper also creates a /etc/profile.d/goenv.sh that configures PATH environment for goenv
+ynh_go_install() {
+
+    [[ -n "${go_version:-}" ]] || ynh_die "\$go_version should be defined prior to calling ynh_go_install"
+
+    # Load goenv path in PATH
+    local CLEAR_PATH="$GOENV_INSTALL_DIR/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Go prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Move an existing Go binary, to avoid to block goenv
+    test -x /usr/bin/go && mv /usr/bin/go /usr/bin/go_goenv
+
+    # Install or update goenv
+    mkdir -p $GOENV_INSTALL_DIR
+    pushd "$GOENV_INSTALL_DIR"
+    if ! [ -x "$GOENV_INSTALL_DIR/bin/goenv" ]; then
+        ynh_print_info "Downloading goenv..."
+        git init -q
+        git remote add origin https://github.com/syndbg/goenv.git
+    else
+        ynh_print_info "Updating goenv..."
+    fi
+    git fetch -q --tags --prune origin
+    local git_latest_tag=$(git describe --tags "$(git rev-list --tags --max-count=1)")
+    git checkout -q "$git_latest_tag"
+    _ynh_go_try_bash_extension
+    goenv=$GOENV_INSTALL_DIR/bin/goenv
+    popd
+
+    # Install or update xxenv-latest
+    mkdir -p "$GOENV_INSTALL_DIR/plugins/xxenv-latest"
+    pushd "$GOENV_INSTALL_DIR/plugins/xxenv-latest"
+    if ! [ -x "$GOENV_INSTALL_DIR/plugins/xxenv-latest/bin/goenv-latest" ]; then
+        ynh_print_info "Downloading xxenv-latest..."
+        git init -q
+        git remote add origin https://github.com/momo-lab/xxenv-latest.git
+    else
+        ynh_print_info "Updating xxenv-latest..."
+    fi
+    git fetch -q --tags --prune origin
+    local git_latest_tag=$(git describe --tags "$(git rev-list --tags --max-count=1)")
+    git checkout -q "$git_latest_tag"
+    popd
+
+    # Enable caching
+    mkdir -p "${GOENV_INSTALL_DIR}/cache"
+
+    # Create shims directory if needed
+    mkdir -p "${GOENV_INSTALL_DIR}/shims"
+
+    # Restore /usr/local/bin in PATH
+    PATH=$CLEAR_PATH
+
+    # And replace the old Go binary
+    test -x /usr/bin/go_goenv && mv /usr/bin/go_goenv /usr/bin/go
+
+    # Install the requested version of Go
+    local final_go_version=$("$GOENV_INSTALL_DIR/plugins/xxenv-latest/bin/goenv-latest" --print "$go_version")
+    ynh_print_info "Installation of Go-$final_go_version"
+    goenv install --quiet --skip-existing "$final_go_version" 2>&1
+
+    # Store go_version into the config of this app
+    ynh_app_setting_set --app="$app" --key="go_version" --value="$final_go_version"
+    go_version=$final_go_version
+
+    # Cleanup Go versions
+    _ynh_go_cleanup
+
+    # Set environment for Go users
+    echo "#goenv
+export GOENV_ROOT=$GOENV_INSTALL_DIR
+export PATH=\"$GOENV_INSTALL_DIR/bin:$PATH\"
+eval \"\$(goenv init -)\"
+#goenv" > /etc/profile.d/goenv.sh
+
+    # Load the environment
+    eval "$(goenv init -)"
+
+    _ynh_load_go_in_path_and_other_tweaks
+}
+
+# Remove the version of Go used by the app.
+#
+# This helper will also cleanup Go versions
+#
+# usage: ynh_go_remove
+ynh_go_remove() {
+    local go_version=$(ynh_app_setting_get --key="go_version")
+
+    # Load goenv path in PATH
+    local CLEAR_PATH="$GOENV_INSTALL_DIR/bin:$PATH"
+
+    # Remove /usr/local/bin in PATH in case of Go prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Remove the line for this app
+    ynh_app_setting_delete --key="go_version"
+
+    # Cleanup Go versions
+    _ynh_go_cleanup
+}
+
+# Remove no more needed versions of Go used by the app.
+#
+# [internal]
+#
+# This helper will check what Go version are no more required,
+# and uninstall them
+# If no app uses Go, goenv will be also removed.
+#
+# usage: _ynh_go_cleanup
+_ynh_go_cleanup() {
+
+    # List required Go versions
+    local installed_apps=$(yunohost app list --output-as json --quiet | jq -r .apps[].id)
+    local required_go_versions=""
+    for installed_app in $installed_apps; do
+        local installed_app_go_version=$(ynh_app_setting_get --app=$installed_app --key="go_version")
+        if [[ $installed_app_go_version ]]; then
+            required_go_versions="${installed_app_go_version}\n${required_go_versions}"
+        fi
+    done
+
+    # Remove no more needed Go versions
+    local installed_go_versions=$(goenv versions --bare --skip-aliases | grep -Ev '/')
+    for installed_go_version in $installed_go_versions; do
+        if ! $(echo ${required_go_versions} | grep "${installed_go_version}" 1> /dev/null 2>&1); then
+            ynh_print_info "Removing of Go-$installed_go_version"
+            $GOENV_INSTALL_DIR/bin/goenv uninstall --force "$installed_go_version"
+        fi
+    done
+
+    # If none Go version is required
+    if [[ ! $required_go_versions ]]; then
+        # Remove goenv environment configuration
+        ynh_print_info "Removing of goenv"
+        ynh_safe_rm "$GOENV_INSTALL_DIR"
+        ynh_safe_rm "/etc/profile.d/goenv.sh"
+    fi
+}
+
+_ynh_go_try_bash_extension() {
+    if [ -x src/configure ]; then
+        src/configure && make -C src || {
+            ynh_print_info "Optional bash extension failed to build, but things will still work normally."
+        }
+    fi
+}

helpers/helpers.v2.1.d/logging

@@ -0,0 +1,117 @@
+#!/bin/bash
+
+# Print a message to stderr and terminate the current script
+#
+# usage: ynh_die "Some message"
+ynh_die() {
+    set +o xtrace # set +x
+    if [[ -n "${1:-}" ]]; then
+        if [[ -n "${YNH_STDRETURN:-}" ]]; then
+            python3 -c 'import yaml, sys; print(yaml.dump({"error": sys.stdin.read()}))' <<< "${1:-}" >> "$YNH_STDRETURN"
+        fi
+        echo "${1:-}" 1>&2
+    fi
+    exit 1
+}
+
+# Print an "INFO" message
+#
+# usage: ynh_print_info "Some message"
+ynh_print_info() {
+    echo "$1" >&$YNH_STDINFO
+}
+
+# Print a warning on stderr
+#
+# usage: ynh_print_warn "Some message"
+ynh_print_warn() {
+    echo "$1" >&2
+}
+
+# Execute a command and redirect stderr to stdout
+#
+# usage: ynh_hide_warnings your command and args
+# | arg: command - command to execute
+#
+ynh_hide_warnings() {
+    # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
+    "$@" 2>&1
+}
+
+# Execute a command and redirect stderr in /dev/null. Print stderr on error.
+#
+# usage: ynh_exec_and_print_stderr_only_if_error your command and args
+# | arg: command - command to execute
+#
+# Note that you should NOT quote the command but only prefix it with ynh_exec_and_print_stderr_only_if_error
+ynh_exec_and_print_stderr_only_if_error() {
+    logfile="$(mktemp)"
+    rc=0
+    # Note that "$@" is used and not $@, c.f. https://unix.stackexchange.com/a/129077
+    "$@" 2> "$logfile" || rc="$?"
+    if ((rc != 0)); then
+        cat "$logfile" >&2
+        ynh_safe_rm "$logfile"
+        return "$rc"
+    fi
+}
+
+# Return data to the YunoHost core for later processing
+# (to be used by special hooks like app config panel and core diagnosis)
+#
+# usage: ynh_return somedata
+ynh_return() {
+    echo "$1" >> "$YNH_STDRETURN"
+}
+
+# Initial definitions for ynh_script_progression
+increment_progression=0
+previous_weight=0
+max_progression=-1
+# Set the scale of the progression bar
+# progress_string(0,1,2) should have the size of the scale.
+progress_scale=20
+progress_string2="####################"
+progress_string1="++++++++++++++++++++"
+progress_string0="...................."
+
+# Print a progress bar showing the progression of an app script
+#
+# usage: ynh_script_progression "Some message"
+ynh_script_progression() {
+    set +o xtrace # set +x
+
+    # Compute $max_progression (if we didn't already)
+    if [ "$max_progression" = -1 ]; then
+        # Get the number of occurrences of 'ynh_script_progression' in the script. Except those are commented.
+        local helper_calls=
+        max_progression="$(grep --count "^[^#]*ynh_script_progression" $0)"
+    fi
+
+    # Increment each execution of ynh_script_progression in this script by the weight of the previous call.
+    increment_progression=$(($increment_progression + $previous_weight))
+    # Store the weight of the current call in $previous_weight for next call
+    previous_weight=1
+
+    # Reduce $increment_progression to the size of the scale
+    local effective_progression=$(($increment_progression * $progress_scale / $max_progression))
+
+    # If last is specified, fill immediately the progression_bar
+
+    # Build $progression_bar from progress_string(0,1,2) according to $effective_progression and the weight of the current task
+    # expected_progression is the progression expected after the current task
+    local expected_progression="$((($increment_progression + 1) * $progress_scale / $max_progression - $effective_progression))"
+
+    # Hack for the "--last" message
+    if grep -qw 'completed' <<< "$1"; then
+        effective_progression=$progress_scale
+        expected_progression=0
+    fi
+    # left_progression is the progression not yet done
+    local left_progression="$(($progress_scale - $effective_progression - $expected_progression))"
+    # Build the progression bar with $effective_progression, work done, $expected_progression, current work and $left_progression, work to be done.
+    local progression_bar="${progress_string2:0:$effective_progression}${progress_string1:0:$expected_progression}${progress_string0:0:$left_progression}"
+
+    echo "[$progression_bar] > ${1}" >&$YNH_STDINFO
+    set -o xtrace # set -x
+}

helpers/helpers.v2.1.d/logrotate

@@ -0,0 +1,73 @@
+#!/bin/bash
+
+FIRST_CALL_TO_LOGROTATE="true"
+
+# Add a logrotate configuration to manage log files / log directory
+#
+# usage: ynh_config_add_logrotate [/path/to/log/file/or/folder]
+#
+# If not argument is provided, `/var/log/$app/*.log` is used as default.
+#
+# The configuration is autogenerated by YunoHost
+# (ie it doesnt come from a specific app template like nginx or systemd conf)
+ynh_config_add_logrotate() {
+
+    local logfile="${1:-}"
+
+    set -o noglob
+    if [[ -z "$logfile" ]]; then
+        logfile="/var/log/${app}/*.log"
+    elif [[ "${logfile##*.}" != "log" ]] && [[ "${logfile##*.}" != "txt" ]]; then
+        logfile="$logfile/*.log"
+    fi
+    set +o noglob
+
+    for stuff in $logfile; do
+        # Make sure the permissions of the parent dir are correct (otherwise the config file could be ignored and the corresponding logs never rotated)
+        local dir=$(dirname "$stuff")
+        mkdir --parents $dir
+        chmod 750 $dir
+        chown $app:$app $dir
+    done
+
+    local tempconf="$(mktemp)"
+    cat << EOF > $tempconf
+$logfile {
+    # Rotate if the logfile exceeds 100Mo
+    size 100M
+    # Keep 12 old log maximum
+    rotate 12
+    # Compress the logs with gzip
+    compress
+    # Compress the log at the next cycle. So keep always 2 non compressed logs
+    delaycompress
+    # Copy and truncate the log to allow to continue write on it. Instead of moving the log.
+    copytruncate
+    # Do not trigger an error if the log is missing
+    missingok
+    # Do not rotate if the log is empty
+    notifempty
+    # Keep old logs in the same dir
+    noolddir
+}
+EOF
+
+    if [[ "$FIRST_CALL_TO_LOGROTATE" == "true" ]]; then
+        cat $tempconf > /etc/logrotate.d/$app
+    else
+        cat $tempconf >> /etc/logrotate.d/$app
+    fi
+
+    FIRST_CALL_TO_LOGROTATE="false"
+
+    chmod 644 "/etc/logrotate.d/$app"
+}
+
+# Remove the app's logrotate config.
+#
+# usage:ynh_config_remove_logrotate
+ynh_config_remove_logrotate() {
+    if [ -e "/etc/logrotate.d/$app" ]; then
+        rm "/etc/logrotate.d/$app"
+    fi
+}

helpers/helpers.v2.1.d/mongodb

@@ -0,0 +1,271 @@
+#!/bin/bash
+
+# Execute a mongo command
+#
+# example: ynh_mongo_exec --command='db.getMongo().getDBNames().indexOf("wekan")'
+# example: ynh_mongo_exec --command="db.getMongo().getDBNames().indexOf(\"wekan\")"
+#
+# usage: ynh_mongo_exec [--database=database] --command="command"
+# | arg: --database=    - The database to connect to
+# | arg: --command=     - The command to evaluate
+#
+#
+ynh_mongo_exec() {
+    # ============ Argument parsing =============
+    local -A args_array=([d]=database= [c]=command=)
+    local database
+    local command
+    ynh_handle_getopts_args "$@"
+    database="${database:-}"
+    # ===========================================
+
+    if [ -n "$database" ]; then
+        mongosh --quiet << EOF
+use $database
+${command}
+quit()
+EOF
+    else
+        mongosh --quiet --eval="$command"
+    fi
+}
+
+# Drop a database
+#
+# [internal]
+#
+# If you intend to drop the database *and* the associated user,
+# consider using ynh_mongo_remove_db instead.
+#
+# usage: ynh_mongo_drop_db --database=database
+# | arg: --database=    - The database name to drop
+#
+#
+ynh_mongo_drop_db() {
+    # ============ Argument parsing =============
+    local -A args_array=([d]=database=)
+    local database
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    ynh_mongo_exec --database="$database" --command='db.runCommand({dropDatabase: 1})'
+}
+
+# Dump a database
+#
+# example: ynh_mongo_dump_db --database=wekan > ./dump.bson
+#
+# usage: ynh_mongo_dump_db --database=database
+# | arg: --database=    - The database name to dump
+# | ret: the mongodump output
+#
+#
+ynh_mongo_dump_db() {
+    # ============ Argument parsing =============
+    local -A args_array=([d]=database=)
+    local database
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    mongodump --quiet --db="$database" --archive
+}
+
+# Create a user
+#
+# [internal]
+#
+# usage: ynh_mongo_create_user --db_user=user --db_pwd=pwd --db_name=name
+# | arg: --db_user=       - The user name to create
+# | arg: --db_pwd=        - The password to identify user by
+# | arg: --db_name=       - Name of the database to grant privilegies
+#
+#
+ynh_mongo_create_user() {
+    # ============ Argument parsing =============
+    local -A args_array=([u]=db_user= [n]=db_name= [p]=db_pwd=)
+    local db_user
+    local db_name
+    local db_pwd
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    # Create the user and set the user as admin of the db
+    ynh_mongo_exec --database="$db_name" --command='db.createUser( { user: "'${db_user}'", pwd: "'${db_pwd}'", roles: [ { role: "readWrite", db: "'${db_name}'" } ] } );'
+
+    # Add clustermonitoring rights
+    ynh_mongo_exec --database="$db_name" --command='db.grantRolesToUser("'${db_user}'",[{ role: "clusterMonitor", db: "admin" }]);'
+}
+
+# Check if a mongo database exists
+#
+# usage: ynh_mongo_database_exists --database=database
+# | arg: --database=        - The database for which to check existence
+# | exit: Return 1 if the database doesn't exist, 0 otherwise
+#
+#
+ynh_mongo_database_exists() {
+    # ============ Argument parsing =============
+    local -A args_array=([d]=database=)
+    local database
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    if [ $(ynh_mongo_exec --command='db.getMongo().getDBNames().indexOf("'${database}'")') -lt 0 ]; then
+        return 1
+    else
+        return 0
+    fi
+}
+
+# Restore a database
+#
+# example: ynh_mongo_restore_db --database=wekan < ./dump.bson
+#
+# usage: ynh_mongo_restore_db --database=database
+# | arg: --database=    - The database name to restore
+#
+#
+ynh_mongo_restore_db() {
+    # ============ Argument parsing =============
+    local -A args_array=([d]=database=)
+    local database
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    mongorestore --quiet --db="$database" --archive
+}
+
+# Drop a user
+#
+# [internal]
+#
+# usage: ynh_mongo_drop_user --db_user=user --db_name=name
+# | arg: --db_user=        - The user to drop
+# | arg: --db_name=        - Name of the database
+#
+#
+ynh_mongo_drop_user() {
+    # ============ Argument parsing =============
+    local -A args_array=([u]=db_user= [n]=db_name=)
+    local db_user
+    local db_name
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    ynh_mongo_exec --database="$db_name" --command='db.dropUser("'$db_user'", {w: "majority", wtimeout: 5000})'
+}
+
+# Create a database, an user and its password. Then store the password in the app's config
+#
+# usage: ynh_mongo_setup_db --db_user=user --db_name=name [--db_pwd=pwd]
+# | arg: --db_user=        - Owner of the database
+# | arg: --db_name=        - Name of the database
+# | arg: --db_pwd=        - Password of the database. If not provided, a password will be generated
+#
+# After executing this helper, the password of the created database will be available in $db_pwd
+# It will also be stored as "mongopwd" into the app settings.
+#
+#
+ynh_mongo_setup_db() {
+    # ============ Argument parsing =============
+    local -A args_array=([u]=db_user= [n]=db_name= [p]=db_pwd=)
+    local db_user
+    local db_name
+    db_pwd=""
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    local new_db_pwd=$(ynh_string_random) # Generate a random password
+    # If $db_pwd is not provided, use new_db_pwd instead for db_pwd
+    db_pwd="${db_pwd:-$new_db_pwd}"
+
+    # Create the user and grant access to the database
+    ynh_mongo_create_user --db_user="$db_user" --db_pwd="$db_pwd" --db_name="$db_name"
+
+    # Store the password in the app's config
+    ynh_app_setting_set --key=db_pwd --value=$db_pwd
+}
+
+# Remove a database if it exists, and the associated user
+#
+# usage: ynh_mongo_remove_db --db_user=user --db_name=name
+# | arg: --db_user=        - Owner of the database
+# | arg: --db_name=        - Name of the database
+#
+#
+ynh_mongo_remove_db() {
+    # ============ Argument parsing =============
+    local -A args_array=([u]=db_user= [n]=db_name=)
+    local db_user
+    local db_name
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    if ynh_mongo_database_exists --database=$db_name; then # Check if the database exists
+        ynh_mongo_drop_db --database=$db_name              # Remove the database
+    else
+        ynh_print_warn "Database $db_name not found"
+    fi
+
+    # Remove mongo user if it exists
+    ynh_mongo_drop_user --db_user=$db_user --db_name=$db_name
+}
+
+# Install MongoDB and integrate MongoDB service in YunoHost
+#
+# The installed version is defined by $mongo_version which should be defined as global prior to calling this helper
+#
+# usage: ynh_install_mongo
+#
+ynh_install_mongo() {
+
+    [[ -n "${mongo_version:-}" ]] || ynh_die "\$mongo_version should be defined prior to calling ynh_install_mongo"
+
+    ynh_print_info "Installing MongoDB Community Edition ..."
+    local mongo_debian_release=$YNH_DEBIAN_VERSION
+
+    if [[ "$(grep '^flags' /proc/cpuinfo | uniq)" != *"avx"* && "$mongo_version" != "4.4" ]]; then
+        ynh_print_warn "Installing Mongo 4.4 as $mongo_version is not compatible with your cpu (see https://docs.mongodb.com/manual/administration/production-notes/#x86_64)."
+        mongo_version="4.4"
+    fi
+    if [[ "$mongo_version" == "4.4" ]]; then
+        ynh_print_warn "Switched to buster install as Mongo 4.4 is not compatible with $mongo_debian_release."
+        mongo_debian_release=buster
+    fi
+
+    ynh_apt_install_dependencies_from_extra_repository \
+        --repo="deb http://repo.mongodb.org/apt/debian $mongo_debian_release/mongodb-org/$mongo_version main" \
+        --package="mongodb-org mongodb-org-server mongodb-org-tools mongodb-mongosh" \
+        --key="https://www.mongodb.org/static/pgp/server-$mongo_version.asc"
+    mongodb_servicename=mongod
+
+    # Make sure MongoDB is started and enabled
+    systemctl enable $mongodb_servicename --quiet
+    systemctl daemon-reload --quiet
+    ynh_systemctl --service=$mongodb_servicename --action=restart --wait_until="aiting for connections" --log_path="/var/log/mongodb/$mongodb_servicename.log"
+
+    # Integrate MongoDB service in YunoHost
+    yunohost service add $mongodb_servicename --description="MongoDB daemon" --log="/var/log/mongodb/$mongodb_servicename.log"
+
+    # Store mongo_version into the config of this app
+    ynh_app_setting_set --key=mongo_version --value=$mongo_version
+}
+
+# Remove MongoDB
+# Only remove the MongoDB service integration in YunoHost for now
+# if MongoDB package as been removed
+#
+# usage: ynh_remove_mongo
+#
+#
+ynh_remove_mongo() {
+    # Only remove the mongodb service if it is not installed.
+    if ! _ynh_apt_package_is_installed "mongodb*"; then
+        ynh_print_info "Removing MongoDB service..."
+        mongodb_servicename=mongod
+        # Remove the mongodb service
+        yunohost service remove $mongodb_servicename
+        ynh_safe_rm "/var/lib/mongodb"
+        ynh_safe_rm "/var/log/mongodb"
+    fi
+}

helpers/helpers.v2.1.d/multimedia

@@ -0,0 +1,89 @@
+#!/bin/bash
+
+readonly MEDIA_GROUP=multimedia
+readonly MEDIA_DIRECTORY=/home/yunohost.multimedia
+
+# Initialize the multimedia directory system
+#
+# usage: ynh_multimedia_build_main_dir
+ynh_multimedia_build_main_dir() {
+
+    ## Création du groupe multimedia
+    groupadd -f $MEDIA_GROUP
+
+    ## Création des dossiers génériques
+    mkdir -p "$MEDIA_DIRECTORY"
+    mkdir -p "$MEDIA_DIRECTORY/share"
+    mkdir -p "$MEDIA_DIRECTORY/share/Music"
+    mkdir -p "$MEDIA_DIRECTORY/share/Picture"
+    mkdir -p "$MEDIA_DIRECTORY/share/Video"
+    mkdir -p "$MEDIA_DIRECTORY/share/eBook"
+
+    ## Création des dossiers utilisateurs
+    for user in $(yunohost user list --output-as json | jq -r '.users | keys[]'); do
+        mkdir -p "$MEDIA_DIRECTORY/$user"
+        mkdir -p "$MEDIA_DIRECTORY/$user/Music"
+        mkdir -p "$MEDIA_DIRECTORY/$user/Picture"
+        mkdir -p "$MEDIA_DIRECTORY/$user/Video"
+        mkdir -p "$MEDIA_DIRECTORY/$user/eBook"
+        ln -sfn "$MEDIA_DIRECTORY/share" "$MEDIA_DIRECTORY/$user/Share"
+        # Création du lien symbolique dans le home de l'utilisateur.
+        #link will only be created if the home directory of the user exists and if it's located in '/home' folder
+        local user_home="$(getent passwd $user | cut -d: -f6 | grep '^/home/')"
+        if [[ -d "$user_home" ]]; then
+            ln -sfn "$MEDIA_DIRECTORY/$user" "$user_home/Multimedia"
+        fi
+        # Propriétaires des dossiers utilisateurs.
+        chown -R $user "$MEDIA_DIRECTORY/$user"
+    done
+    # Default yunohost hooks for post_user_create,delete will take care
+    # of creating/deleting corresponding multimedia folders when users
+    # are created/deleted in the future...
+
+    ## Application des droits étendus sur le dossier multimedia.
+    # Droit d'écriture pour le groupe et le groupe multimedia en acl et droit de lecture pour other:
+    setfacl -RnL -m g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$MEDIA_DIRECTORY" || true
+    # Application de la même règle que précédemment, mais par défaut pour les nouveaux fichiers.
+    setfacl -RnL -m d:g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$MEDIA_DIRECTORY" || true
+    # Réglage du masque par défaut. Qui garantie (en principe...) un droit maximal à rwx. Donc pas de restriction de droits par l'acl.
+    setfacl -RL -m m::rwx "$MEDIA_DIRECTORY" || true
+}
+
+# Add a directory in yunohost.multimedia
+#
+# usage: ynh_multimedia_addfolder --source_dir="source_dir" --dest_dir="dest_dir"
+#
+# | arg: --source_dir= - Source directory - The real directory which contains your medias.
+# | arg: --dest_dir= - Destination directory - The name and the place of the symbolic link, relative to "/home/yunohost.multimedia"
+#
+# This "directory" will be a symbolic link to a existing directory.
+ynh_multimedia_addfolder() {
+
+    # ============ Argument parsing =============
+    local -A args_array=([s]=source_dir= [d]=dest_dir=)
+    local source_dir
+    local dest_dir
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    # Ajout d'un lien symbolique vers le dossier à partager
+    ln -sfn "$source_dir" "$MEDIA_DIRECTORY/$dest_dir"
+
+    ## Application des droits étendus sur le dossier ajouté
+    # Droit d'écriture pour le groupe et le groupe multimedia en acl et droit de lecture pour other:
+    setfacl -RnL -m g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$source_dir"
+    # Application de la même règle que précédemment, mais par défaut pour les nouveaux fichiers.
+    setfacl -RnL -m d:g:$MEDIA_GROUP:rwX,g::rwX,o:r-X "$source_dir"
+    # Réglage du masque par défaut. Qui garantie (en principe...) un droit maximal à rwx. Donc pas de restriction de droits par l'acl.
+    setfacl -RL -m m::rwx "$source_dir"
+}
+
+# Add an user to the multimedia group, in turn having write permission in multimedia directories
+#
+# usage: ynh_multimedia_addaccess user_name
+#
+# | arg: user_name   - The name of the user which gain this access.
+ynh_multimedia_addaccess() {
+    groupadd -f $MEDIA_GROUP
+    usermod -a -G $MEDIA_GROUP $1
+}

helpers/helpers.v2.1.d/mysql

@@ -0,0 +1,116 @@
+#!/bin/bash
+
+# Run SQL instructions in a database ($db_name by default)
+#
+# usage: ynh_mysql_db_shell [database] <<< "instructions"
+# | arg: database=    - the database to connect to (by default, $db_name)
+#
+# examples:
+#    ynh_mysql_db_shell $db_name <<< "UPDATE ...;"
+#    ynh_mysql_db_shell < /path/to/file.sql
+#
+ynh_mysql_db_shell() {
+    local database=${1:-$db_name}
+    mysql -B $database
+}
+
+# Create a database and grant optionnaly privilegies to a user
+#
+# [internal] ... handled by the core / "database resource"
+#
+# usage: ynh_mysql_create_db db [user [pwd]]
+# | arg: db - the database name to create
+# | arg: user - the user to grant privilegies
+# | arg: pwd - the password to identify user by
+#
+ynh_mysql_create_db() {
+    local db=$1
+
+    local sql="CREATE DATABASE ${db};"
+
+    # grant all privilegies to user
+    if [[ $# -gt 1 ]]; then
+        sql+=" GRANT ALL PRIVILEGES ON ${db}.* TO '${2}'@'localhost'"
+        if [[ -n ${3:-} ]]; then
+            sql+=" IDENTIFIED BY '${3}'"
+        fi
+        sql+=" WITH GRANT OPTION;"
+    fi
+
+    mysql -B <<< "$sql"
+}
+
+# Drop a database
+#
+# [internal] ... handled by the core / "database resource"
+#
+# If you intend to drop the database *and* the associated user,
+# consider using ynh_mysql_remove_db instead.
+#
+# usage: ynh_mysql_drop_db db
+# | arg: db - the database name to drop
+#
+ynh_mysql_drop_db() {
+    mysql -B <<< "DROP DATABASE ${1};"
+}
+
+# Dump a database
+#
+# usage: ynh_mysql_dump_db database
+# | arg: database   - the database name to dump (by default, $db_name)
+# | ret: The mysqldump output
+#
+# example: ynh_mysql_dump_db "roundcube" > ./dump.sql
+#
+ynh_mysql_dump_db() {
+    local database=${1:-$db_name}
+    mysqldump --single-transaction --skip-dump-date --routines "$database"
+}
+
+# Create a user
+#
+# [internal] ... handled by the core / "database resource"
+#
+# usage: ynh_mysql_create_user user pwd [host]
+# | arg: user - the user name to create
+# | arg: pwd - the password to identify user by
+#
+ynh_mysql_create_user() {
+    mysql -B <<< "CREATE USER '${1}'@'localhost' IDENTIFIED BY '${2}';"
+}
+
+# Check if a mysql user exists
+#
+# [internal]
+#
+# usage: ynh_mysql_user_exists user
+# | arg: user   - the user for which to check existence
+# | ret: 0 if the user exists, 1 otherwise.
+ynh_mysql_user_exists() {
+    local user=$1
+    [[ -n "$(mysql -B <<< "SELECT User from mysql.user WHERE User = '$user';")" ]]
+}
+
+# Check if a mysql database exists
+#
+# [internal]
+#
+# usage: ynh_mysql_database_exists database
+# | arg: database    - the database for which to check existence
+# | exit: Return 1 if the database doesn't exist, 0 otherwise
+#
+ynh_mysql_database_exists() {
+    local database=$1
+    mysqlshow | grep -q "^| $database "
+}
+
+# Drop a user
+#
+# [internal] ... handled by the core / "database resource"
+#
+# usage: ynh_mysql_drop_user user
+# | arg: user - the user name to drop
+#
+ynh_mysql_drop_user() {
+    mysql -B <<< "DROP USER '${1}'@'localhost';"
+}

helpers/helpers.v2.1.d/nginx

@@ -0,0 +1,58 @@
+#!/bin/bash
+
+# Create a dedicated nginx config
+#
+# usage: ynh_config_add_nginx
+#
+# This will use a template in `../conf/nginx.conf`
+# See the documentation of `ynh_config_add` for a description of the template
+# format and how placeholders are replaced with actual variables.
+#
+# Additionally, ynh_config_add_nginx will replace:
+# - `#sub_path_only`      by empty string if `path` is not `'/'`
+# - `#root_path_only`     by empty string if `path`  *is*  `'/'`
+#
+# This allows to enable/disable specific behaviors dependenging on the install
+# location
+ynh_config_add_nginx() {
+
+    local finalnginxconf="/etc/nginx/conf.d/$domain.d/$app.conf"
+
+    ynh_config_add --template="nginx.conf" --destination="$finalnginxconf"
+
+    if [ "${path:-}" != "/" ]; then
+        ynh_replace --match="^#sub_path_only" --replace="" --file="$finalnginxconf"
+    else
+        ynh_replace --match="^#root_path_only" --replace="" --file="$finalnginxconf"
+    fi
+
+    ynh_store_file_checksum "$finalnginxconf"
+
+    ynh_systemctl --service=nginx --action=reload
+}
+
+# Remove the dedicated nginx config
+#
+# usage: ynh_config_remove_nginx
+ynh_config_remove_nginx() {
+    ynh_safe_rm "/etc/nginx/conf.d/$domain.d/$app.conf"
+    ynh_systemctl --service=nginx --action=reload
+}
+
+# Regen the nginx config in a change url context
+#
+# usage: ynh_config_change_url_nginx
+ynh_config_change_url_nginx() {
+
+    # Make a backup of the original NGINX config file if manually modified
+    # (nb: this is possibly different from the same instruction called by
+    # ynh_config_add inside ynh_config_add_nginx because the path may have
+    # changed if we're changing the domain too...)
+    local old_nginx_conf_path=/etc/nginx/conf.d/$old_domain.d/$app.conf
+    ynh_backup_if_checksum_is_different "$old_nginx_conf_path"
+    ynh_delete_file_checksum "$old_nginx_conf_path"
+    ynh_safe_rm "$old_nginx_conf_path"
+
+    # Regen the nginx conf
+    ynh_config_add_nginx
+}

helpers/helpers.v2.1.d/nodejs

@@ -0,0 +1,124 @@
+#!/bin/bash
+
+readonly N_INSTALL_DIR="/opt/node_n"
+# N_PREFIX is the directory of n, it needs to be loaded as a environment variable.
+export N_PREFIX="$N_INSTALL_DIR"
+
+# [internal]
+_ynh_load_nodejs_in_path_and_other_tweaks() {
+
+    # Get the absolute path of this version of node
+    nodejs_dir="$N_INSTALL_DIR/n/versions/node/$nodejs_version/bin"
+
+    # Load the path of this version of node in $PATH
+    if [[ :$PATH: != *":$nodejs_dir"* ]]; then
+        PATH="$nodejs_dir:$PATH"
+    fi
+
+    # Export PATH such that it's available through sudo -E / ynh_exec_as $app
+    export PATH
+
+    # This is in full lowercase such that it gets replaced in templates
+    path_with_nodejs="$PATH"
+    PATH_with_nodejs="$PATH"
+
+    # Prevent yet another Node and Corepack madness, with Corepack wanting the user to confirm download of Yarn
+    export COREPACK_ENABLE_DOWNLOAD_PROMPT=0
+}
+
+# Install a specific version of nodejs, using 'n'
+#
+# The installed version is defined by `$nodejs_version` which should be defined as global prior to calling this helper
+#
+# usage: ynh_nodejs_install
+#
+# `n` (Node version management) uses the `PATH` variable to store the path of the version of node it is going to use.
+# That's how it changes the version
+#
+# The helper adds the appropriate, specific version of nodejs to the `$PATH` variable (which
+# is preserved when calling ynh_exec_as_app). Also defines:
+# - `$path_with_nodejs` to be used in the systemd config (`Environment="PATH=__PATH_WITH_NODEJS__"`)
+# - `$nodejs_dir`, the directory containing the specific version of nodejs, which may be used in the systemd config too (e.g. `ExecStart=__NODEJS_DIR__/node foo bar`)
+ynh_nodejs_install() {
+    # Use n, https://github.com/tj/n to manage the nodejs versions
+
+    [[ -n "${nodejs_version:-}" ]] || ynh_die "\$nodejs_version should be defined prior to calling ynh_nodejs_install"
+
+    # Create $N_INSTALL_DIR
+    mkdir --parents "$N_INSTALL_DIR"
+
+    # Load n path in PATH
+    CLEAR_PATH="$N_INSTALL_DIR/bin:$PATH"
+    # Remove /usr/local/bin in PATH in case of node prior installation
+    PATH=$(echo $CLEAR_PATH | sed 's@/usr/local/bin:@@')
+
+    # Move an existing node binary, to avoid to block n.
+    test -x /usr/bin/node && mv /usr/bin/node /usr/bin/node_n
+    test -x /usr/bin/npm && mv /usr/bin/npm /usr/bin/npm_n
+
+    # Install (or update if YunoHost vendor/ folder updated since last install) n
+    mkdir -p $N_INSTALL_DIR/bin/
+    cp "$YNH_HELPERS_DIR/vendor/n/n" $N_INSTALL_DIR/bin/n
+    # Tweak for n to understand it's installed in $N_PREFIX
+    ynh_replace --match="^N_PREFIX=\${N_PREFIX-.*}$" --replace="N_PREFIX=\${N_PREFIX-$N_PREFIX}" --file="$N_INSTALL_DIR/bin/n"
+
+    # Restore /usr/local/bin in PATH
+    PATH=$CLEAR_PATH
+
+    # And replace the old node binary.
+    test -x /usr/bin/node_n && mv /usr/bin/node_n /usr/bin/node
+    test -x /usr/bin/npm_n && mv /usr/bin/npm_n /usr/bin/npm
+
+    # Install the requested version of nodejs
+    uname=$(uname --machine)
+    if [[ $uname =~ aarch64 || $uname =~ arm64 ]]; then
+        n $nodejs_version --arch=arm64
+    else
+        n $nodejs_version
+    fi
+
+    # Find the last "real" version for this major version of node.
+    real_nodejs_version=$(find $N_INSTALL_DIR/n/versions/node/$nodejs_version* -maxdepth 0 | sort --version-sort | tail --lines=1)
+    real_nodejs_version=$(basename $real_nodejs_version)
+
+    # Create a symbolic link for this major version if the file doesn't already exist
+    if [ ! -e "$N_INSTALL_DIR/n/versions/node/$nodejs_version" ]; then
+        ln --symbolic --force --no-target-directory \
+            $N_INSTALL_DIR/n/versions/node/$real_nodejs_version \
+            $N_INSTALL_DIR/n/versions/node/$nodejs_version
+    fi
+
+    # Store the ID of this app and the version of node requested for it
+    echo "$YNH_APP_INSTANCE_NAME:$nodejs_version" | tee --append "$N_INSTALL_DIR/ynh_app_version"
+
+    # Store nodejs_version into the config of this app
+    ynh_app_setting_set --key=nodejs_version --value=$nodejs_version
+
+    _ynh_load_nodejs_in_path_and_other_tweaks
+}
+
+# Remove the version of node used by the app.
+#
+# usage: ynh_nodejs_remove
+#
+# This helper will check if another app uses the same version of node.
+# - If not, this version of node will be removed.
+# - If no other app uses node, n will be also removed.
+ynh_nodejs_remove() {
+
+    [[ -n "${nodejs_version:-}" ]] || ynh_die "\$nodejs_version should be defined prior to calling ynh_nodejs_remove"
+
+    # Remove the line for this app
+    sed --in-place "/$YNH_APP_INSTANCE_NAME:$nodejs_version/d" "$N_INSTALL_DIR/ynh_app_version"
+
+    # If no other app uses this version of nodejs, remove it.
+    if ! grep --quiet "$nodejs_version" "$N_INSTALL_DIR/ynh_app_version"; then
+        $N_INSTALL_DIR/bin/n rm $nodejs_version
+    fi
+
+    # If no other app uses n, remove n
+    if [ ! -s "$N_INSTALL_DIR/ynh_app_version" ]; then
+        ynh_safe_rm "$N_INSTALL_DIR"
+        sed --in-place "/N_PREFIX/d" /root/.bashrc
+    fi
+}

helpers/helpers.v2.1.d/permission

@@ -0,0 +1,310 @@
+#!/bin/bash
+
+# Create a new permission for the app
+#
+# Example 1: `ynh_permission_create --permission=admin --url=/admin --additional_urls=domain.tld/admin /superadmin --allowed=alice bob \
+#                                  --label="My app admin" --show_tile=true`
+#
+# This example will create a new permission permission with this following effect:
+# - A tile named "My app admin" in the SSO will be available for the users alice and bob. This tile will point to the relative url '/admin'.
+# - Only the user alice and bob will have the access to theses following url: /admin, domain.tld/admin, /superadmin
+#
+#
+# Example 2:
+#
+#     ynh_permission_create --permission=api --url=domain.tld/api --auth_header=false --allowed=visitors \
+#                                  --label="MyApp API" --protected=true
+#
+# This example will create a new protected permission. So the admin won't be able to add/remove the visitors group of this permission.
+# In case of an API with need to be always public it avoid that the admin break anything.
+# With this permission all client will be allowed to access to the url 'domain.tld/api'.
+# Note that in this case no tile will be show on the SSO.
+# Note that the auth_header parameter is to 'false'. So no authentication header will be passed to the application.
+# Generally the API is requested by an application and enabling the auth_header has no advantage and could bring some issues in some case.
+# So in this case it's better to disable this option for all API.
+#
+#
+# usage: ynh_permission_create --permission="permission" [--url="url"] [--additional_urls="second-url" [ "third-url" ]] [--auth_header=true|false]
+#                                                        [--allowed=group1 [ group2 ]] [--label="label"] [--show_tile=true|false]
+#                                                        [--protected=true|false]
+# | arg: --permission=       - the name for the permission (by default a permission named "main" already exist)
+# | arg: --url=              - (optional) URL for which access will be allowed/forbidden. Note that if 'show_tile' is enabled, this URL will be the URL of the tile.
+# | arg: --additional_urls=  - (optional) List of additional URL for which access will be allowed/forbidden
+# | arg: --auth_header=      - (optional) Define for the URL of this permission, if SSOwat pass the authentication header to the application. Default is true
+# | arg: --allowed=          - (optional) A list of group/user to allow for the permission
+# | arg: --label=            - (optional) Define a name for the permission. This label will be shown on the SSO and in the admin. Default is "APP_LABEL (permission name)".
+# | arg: --show_tile=        - (optional) Define if a tile will be shown in the SSO. If yes the name of the tile will be the 'label' parameter. Defaults to false for the permission different than 'main'.
+# | arg: --protected=        - (optional) Define if this permission is protected. If it is protected the administrator won't be able to add or remove the visitors group of this permission. Defaults to 'false'.
+#
+# [packagingv1]
+#
+# If provided, 'url' or 'additional_urls' is assumed to be relative to the app domain/path if they
+# start with '/'.  For example:
+#     /                             -> domain.tld/app
+#     /admin                        -> domain.tld/app/admin
+#     domain.tld/app/api            -> domain.tld/app/api
+#
+# 'url' or 'additional_urls' can be treated as a PCRE (not lua) regex if it starts with "re:".
+# For example:
+#     re:/api/[A-Z]*$               -> domain.tld/app/api/[A-Z]*$
+#     re:domain.tld/app/api/[A-Z]*$ -> domain.tld/app/api/[A-Z]*$
+#
+# Note that globally the parameter 'url' and 'additional_urls' are same. The only difference is:
+# - 'url' is only one url, 'additional_urls' can be a list of urls. There are no limitation of 'additional_urls'
+# - 'url' is used for the url of tile in the SSO (if enabled with the 'show_tile' parameter)
+#
+#
+# About the authentication header (auth_header parameter).
+# The SSO pass (by default) to the application theses following HTTP header (linked to the authenticated user) to the application:
+#        - "Auth-User": username
+#        - "Remote-User": username
+#        - "Email": user email
+#
+# Generally this feature is usefull to authenticate automatically the user in the application but in some case the application don't work with theses header and theses header need to be disabled to have the application to work correctly.
+# See https://github.com/YunoHost/issues/issues/1420 for more informations
+ynh_permission_create() {
+    # ============ Argument parsing =============
+    local -A args_array=([p]=permission= [u]=url= [A]=additional_urls= [h]=auth_header= [a]=allowed= [l]=label= [t]=show_tile= [P]=protected=)
+    local permission
+    local url
+    local additional_urls
+    local auth_header
+    local allowed
+    local label
+    local show_tile
+    local protected
+    ynh_handle_getopts_args "$@"
+    url=${url:-}
+    additional_urls=${additional_urls:-}
+    auth_header=${auth_header:-}
+    allowed=${allowed:-}
+    label=${label:-}
+    show_tile=${show_tile:-}
+    protected=${protected:-}
+    # ===========================================
+
+    if [[ -n $url ]]; then
+        url=",url='$url'"
+    fi
+
+    if [[ -n $additional_urls ]]; then
+        # Convert a list from getopts to python list
+        # Note that getopts separate the args with ';'
+        # By example:
+        # --additional_urls /urlA /urlB
+        # will be:
+        # additional_urls=['/urlA', '/urlB']
+        additional_urls=",additional_urls=['${additional_urls//;/\',\'}']"
+    fi
+
+    if [[ -n $auth_header ]]; then
+        if [ $auth_header == "true" ]; then
+            auth_header=",auth_header=True"
+        else
+            auth_header=",auth_header=False"
+        fi
+    fi
+
+    if [[ -n $allowed ]]; then
+        # Convert a list from getopts to python list
+        # Note that getopts separate the args with ';'
+        # By example:
+        # --allowed alice bob
+        # will be:
+        # allowed=['alice', 'bob']
+        allowed=",allowed=['${allowed//;/\',\'}']"
+    fi
+
+    if [[ -n ${label:-} ]]; then
+        label=",label='$label'"
+    else
+        label=",label='$permission'"
+    fi
+
+    if [[ -n ${show_tile:-} ]]; then
+        if [ $show_tile == "true" ]; then
+            show_tile=",show_tile=True"
+        else
+            show_tile=",show_tile=False"
+        fi
+    fi
+
+    if [[ -n ${protected:-} ]]; then
+        if [ $protected == "true" ]; then
+            protected=",protected=True"
+        else
+            protected=",protected=False"
+        fi
+    fi
+
+    yunohost tools shell -c "from yunohost.permission import permission_create; permission_create('$app.$permission' $url $additional_urls $auth_header $allowed $label $show_tile $protected)"
+}
+
+# Remove a permission for the app (note that when the app is removed all permission is automatically removed)
+#
+# example: ynh_permission_delete --permission=editors
+#
+# usage: ynh_permission_delete --permission="permission"
+# | arg: --permission=      - the name for the permission (by default a permission named "main" is removed automatically when the app is removed)
+ynh_permission_delete() {
+    # ============ Argument parsing =============
+    local -A args_array=([p]=permission=)
+    local permission
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    yunohost tools shell -c "from yunohost.permission import permission_delete; permission_delete('$app.$permission')"
+}
+
+# Check if a permission exists
+#
+# usage: ynh_permission_exists --permission=permission
+# | arg: --permission=      - the permission to check
+# | exit: Return 1 if the permission doesn't exist, 0 otherwise
+ynh_permission_exists() {
+    # ============ Argument parsing =============
+    local -A args_array=([p]=permission=)
+    local permission
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    yunohost user permission list "$app" --output-as json --quiet \
+        | jq -e --arg perm "$app.$permission" '.permissions[$perm]' > /dev/null
+}
+
+# Redefine the url associated to a permission
+#
+# usage: ynh_permission_url --permission "permission" [--url="url"] [--add_url="new-url" [ "other-new-url" ]] [--remove_url="old-url" [ "other-old-url" ]]
+#                                                     [--auth_header=true|false] [--clear_urls]
+# | arg: --permission=   - the name for the permission (by default a permission named "main" is removed automatically when the app is removed)
+# | arg: --url=          - (optional) URL for which access will be allowed/forbidden. Note that if you want to remove url you can pass an empty sting as arguments ("").
+# | arg: --add_url=      - (optional) List of additional url to add for which access will be allowed/forbidden.
+# | arg: --remove_url=   - (optional) List of additional url to remove for which access will be allowed/forbidden
+# | arg: --auth_header=  - (optional) Define for the URL of this permission, if SSOwat pass the authentication header to the application
+# | arg: --clear_urls    - (optional) Clean all urls (url and additional_urls)
+ynh_permission_url() {
+    # ============ Argument parsing =============
+    local -A args_array=([p]=permission= [u]=url= [a]=add_url= [r]=remove_url= [h]=auth_header= [c]=clear_urls)
+    local permission
+    local url
+    local add_url
+    local remove_url
+    local auth_header
+    local clear_urls
+    ynh_handle_getopts_args "$@"
+    url=${url:-}
+    add_url=${add_url:-}
+    remove_url=${remove_url:-}
+    auth_header=${auth_header:-}
+    clear_urls=${clear_urls:-}
+    # ===========================================
+
+    if [[ -n $url ]]; then
+        url=",url='$url'"
+    fi
+
+    if [[ -n $add_url ]]; then
+        # Convert a list from getopts to python list
+        # Note that getopts separate the args with ';'
+        # For example:
+        # --add_url /urlA /urlB
+        # will be:
+        # add_url=['/urlA', '/urlB']
+        add_url=",add_url=['${add_url//;/\',\'}']"
+    fi
+
+    if [[ -n $remove_url ]]; then
+        # Convert a list from getopts to python list
+        # Note that getopts separate the args with ';'
+        # For example:
+        # --remove_url /urlA /urlB
+        # will be:
+        # remove_url=['/urlA', '/urlB']
+        remove_url=",remove_url=['${remove_url//;/\',\'}']"
+    fi
+
+    if [[ -n $auth_header ]]; then
+        if [ $auth_header == "true" ]; then
+            auth_header=",auth_header=True"
+        else
+            auth_header=",auth_header=False"
+        fi
+    fi
+
+    if [[ -n $clear_urls ]] && [ $clear_urls -eq 1 ]; then
+        clear_urls=",clear_urls=True"
+    fi
+
+    yunohost tools shell -c "from yunohost.permission import permission_url; permission_url('$app.$permission' $url $add_url $remove_url $auth_header $clear_urls)"
+}
+
+# Update a permission for the app
+#
+# usage: ynh_permission_update --permission "permission" [--add="group" ["group" ...]] [--remove="group" ["group" ...]]
+#
+# | arg: --permission= - the name for the permission (by default a permission named "main" already exist)
+# | arg: --add=        - the list of group or users to enable add to the permission
+# | arg: --remove=     - the list of group or users to remove from the permission
+ynh_permission_update() {
+    # ============ Argument parsing =============
+    local -A args_array=([p]=permission= [a]=add= [r]=remove=)
+    local permission
+    local add
+    local remove
+    ynh_handle_getopts_args "$@"
+    add=${add:-}
+    remove=${remove:-}
+    # ===========================================
+
+    if [[ -n $add ]]; then
+        # Convert a list from getopts to python list
+        # Note that getopts separate the args with ';'
+        # For example:
+        # --add alice bob
+        # will be:
+        # add=['alice', 'bob']
+        add=",add=['${add//';'/"','"}']"
+    fi
+    if [[ -n $remove ]]; then
+        # Convert a list from getopts to python list
+        # Note that getopts separate the args with ';'
+        # For example:
+        # --remove alice bob
+        # will be:
+        # remove=['alice', 'bob']
+        remove=",remove=['${remove//';'/"','"}']"
+    fi
+
+    yunohost tools shell -c "from yunohost.permission import user_permission_update; user_permission_update('$app.$permission' $add $remove , force=True)"
+}
+
+# Check if a permission has an user
+#
+# example: ynh_permission_has_user --permission=main --user=visitors
+#
+# usage: ynh_permission_has_user --permission=permission --user=user
+# | arg: --permission=  - the permission to check
+# | arg: --user=        - the user seek in the permission
+# | exit: Return 1 if the permission doesn't have that user or doesn't exist, 0 otherwise
+ynh_permission_has_user() {
+    # ============ Argument parsing =============
+    local -A args_array=([p]=permission= [u]=user=)
+    local permission
+    local user
+    ynh_handle_getopts_args "$@"
+    # ===========================================
+
+    if ! ynh_permission_exists --permission=$permission; then
+        return 1
+    fi
+
+    # Check both allowed and corresponding_users sections in the json
+    for section in "allowed" "corresponding_users"; do
+        if yunohost user permission info "$app.$permission" --output-as json --quiet \
+            | jq -e --arg user $user --arg section $section '.[$section] | index($user)' > /dev/null; then
+            return 0
+        fi
+    done
+
+    return 1
+}

helpers/helpers.v2.1.d/php

@@ -0,0 +1,149 @@
+#!/bin/bash
+
+# (this is used in the apt helpers, big meh ...)
+readonly YNH_DEFAULT_PHP_VERSION=7.4
+
+# Create a dedicated PHP-FPM config
+#
+# usage: ynh_config_add_phpfpm
+#
+# This will automatically generate an appropriate PHP-FPM configuration for this app.
+#
+# The resulting configuration will be deployed to the appropriate place:
+# `/etc/php/$php_version/fpm/pool.d/$app.conf`
+#
+# If the app provides a `conf/extra_php-fpm.conf` template, it will be appended
+# to the generated configuration. (In the vast majority of cases, this shouldnt
+# be necessary)
+#
+# $php_version should be defined prior to calling this helper, but there should
+# be no reason to manually set it, as it is automatically set by the apt
+# helpers/resources when installing phpX.Y dependencies (PHP apps should at
+# least install phpX.Y-fpm using the `apt` helper/resource)
+#
+# `$php_group` can be defined as a global (from `_common.sh`) if the worker
+# processes should run with a different group than `$app`
+#
+# Additional "pm" and "php_admin_value" settings which are meant to be possibly
+# configurable by admins from a future standard config panel at some point,
+# related to performance and availability of the app, for which tweaking may be
+# required if the app is used by "plenty" of users and other memory/CPU load
+# considerations....
+#
+# If you have good reasons to be willing to use different
+# defaults than the one set by this helper (while still allowing admin to
+# override it) you should use `ynh_app_setting_set_default`
+#
+# - `$php_upload_max_filezise`: corresponds upload_max_filesize and post_max_size. Defaults to 50M
+# - `$php_process_management`: corresponds to "pm" (ondemand, dynamic, static). Defaults to ondemand
+# - `$php_max_children`: by default, computed from "total RAM" divided by 40, cf `_default_php_max_children`
+# - `$php_memory_limit`: by default, 128M (from global php.ini)
+#
+# Note that if $php_process_management is set to "dynamic", then these
+# variables MUST be defined prior to calling the helper (no default value) ...
+# Check PHP-FPM's manual for more info on what these are (: ...
+#
+# - `$php_start_servers`
+# - `$php_min_spare_servers`
+# - `$php_max_spare_servers`
+#
+ynh_config_add_phpfpm() {
+
+    [[ -n "${php_version:-}" ]] || ynh_die "\$php_version should be defined prior to calling ynh_config_add_phpfpm. You should not need to define it manually, it is automatically set by the apt helper when installing the phpX.Y- depenencies"
+
+    # Apps may define $php_group as a global (e.g. from _common.sh) to change this
+    # (this is not meant to be overridable by users)
+    local php_group=${php_group:-$app}
+
+    # Meant to be overridable by users from a standard config panel at some point ...
+    # Apps willing to tweak these should use ynh_setting_set_default_value (in install and upgrade?)
+    #
+    local php_upload_max_filesize=${php_upload_max_filesize:-50M}
+    local php_process_management=${php_process_management:-ondemand} # alternatively 'dynamic' or 'static'
+    local php_max_children=${php_max_children:-$(_default_php_max_children)}
+    local php_memory_limit=${php_memory_limit:-128M} # default value is from global php.ini
+
+    local phpfpm_template=$(mktemp)
+    cat << EOF > $phpfpm_template
+[__APP__]
+
+user = __APP__
+group = __PHP_GROUP__
+
+chdir = __INSTALL_DIR__
+
+listen = /var/run/php/php__PHP_VERSION__-fpm-__APP__.sock
+listen.owner = www-data
+listen.group = www-data
+
+pm = __PHP_PROCESS_MANAGEMENT__
+pm.max_children = __PHP_MAX_CHILDREN__
+pm.max_requests = 500
+request_terminate_timeout = 1d
+
+EOF
+    if [ "$php_process_management" = "dynamic" ]; then
+        cat << EOF >> $phpfpm_template
+pm.start_servers = __PHP_START_SERVERS__
+pm.min_spare_servers = __PHP_MIN_SPARE_SERVERS__
+pm.max_spare_servers = __PHP_MAX_SPARE_SERVERS__
+EOF
+    elif [ "$php_process_management" = "ondemand" ]; then
+        cat << EOF >> $phpfpm_template
+pm.process_idle_timeout = 10s
+EOF
+    fi
+
+    cat << EOF >> $phpfpm_template
+php_admin_value[upload_max_filesize] = __PHP_UPLOAD_MAX_FILESIZE__
+php_admin_value[post_max_size] = __PHP_UPLOAD_MAX_FILESIZE__
+php_admin_value[memory_limit] = __PHP_MEMORY_LIMIT__
+EOF
+
+    # Concatene the extra config
+    if [ -e $YNH_APP_BASEDIR/conf/extra_php-fpm.conf ]; then
+        cat $YNH_APP_BASEDIR/conf/extra_php-fpm.conf >> "$phpfpm_template"
+    fi
+
+    # Make sure the fpm pool dir exists
+    mkdir --parents "/etc/php/$php_version/fpm/pool.d"
+    # And hydrate configuration
+    ynh_config_add --template="$phpfpm_template" --destination="/etc/php/$php_version/fpm/pool.d/$app.conf"
+
+    # Validate that the new php conf doesn't break php-fpm entirely
+    if ! php-fpm${php_version} --test 2> /dev/null; then
+        php-fpm${php_version} --test || true
+        ynh_safe_rm "/etc/php/$php_version/fpm/pool.d/$app.conf"
+        ynh_die "The new configuration broke php-fpm?"
+    fi
+
+    ynh_systemctl --service=php${php_version}-fpm --action=reload
+}
+
+# Remove the dedicated PHP-FPM config
+#
+# usage: ynh_config_remove_phpfpm
+ynh_config_remove_phpfpm() {
+    ynh_safe_rm "/etc/php/$php_version/fpm/pool.d/$app.conf"
+    ynh_systemctl --service="php${php_version}-fpm" --action=reload
+}
+
+_default_php_max_children() {
+    # Get the total of RAM available
+    local total_ram=$(ynh_get_ram --total)
+
+    # The value of pm.max_children is the total amount of ram divide by 2,
+    # divide again by 20MB (= a default, classic worker footprint) This is
+    # designed such that if PHP-FPM start the maximum of children, it won't
+    # exceed half of the ram.
+    local php_max_children="$(($total_ram / 40))"
+    # Make sure we get at least max_children = 1
+    if [ $php_max_children -le 0 ]; then
+        php_max_children=1
+    # To not overload the proc, limit the number of children to 4 times the number of cores.
+    elif [ $php_max_children -gt "$(($(nproc) * 4))" ]; then
+        php_max_children="$(($(nproc) * 4))"
+    fi
+
+    echo "$php_max_children"
+}

helpers/helpers.v2.1.d/postgresql

@@ -0,0 +1,124 @@
+#!/bin/bash
+
+PSQL_ROOT_PWD_FILE=/etc/yunohost/psql
+PSQL_VERSION=13
+
+# Run SQL instructions in a database ($db_name by default)
+#
+# usage: ynh_psql_db_shell database <<< "instructions"
+# | arg: database    - the database to connect to (by default, $db_name)
+#
+# examples:
+#    ynh_psql_db_shell $db_name <<< "UPDATE ...;"
+#    ynh_psql_db_shell < /path/to/file.sql
+#
+ynh_psql_db_shell() {
+    local database="${1:-$db_name}"
+    sudo --login --user=postgres psql "$database"
+}
+
+# Create a database and grant optionnaly privilegies to a user
+#
+# [internal] ... handled by the core / "database resource"
+#
+# usage: ynh_psql_create_db db [user]
+# | arg: db - the database name to create
+# | arg: user - the user to grant privilegies
+#
+ynh_psql_create_db() {
+    local db=$1
+    local user=${2:-}
+
+    local sql="CREATE DATABASE ${db};"
+
+    # grant all privilegies to user
+    if [ -n "$user" ]; then
+        sql+="ALTER DATABASE ${db} OWNER TO ${user};"
+        sql+="GRANT ALL PRIVILEGES ON DATABASE ${db} TO ${user} WITH GRANT OPTION;"
+    fi
+
+    sudo --login --user=postgres psql <<< "$sql"
+}
+
+# Drop a database
+#
+# [internal] ... handled by the core / "database resource"
+#
+# If you intend to drop the database *and* the associated user,
+# consider using ynh_psql_remove_db instead.
+#
+# usage: ynh_psql_drop_db db
+# | arg: db - the database name to drop
+#
+ynh_psql_drop_db() {
+    local db=$1
+    # First, force disconnection of all clients connected to the database
+    # https://stackoverflow.com/questions/17449420/postgresql-unable-to-drop-database-because-of-some-auto-connections-to-db
+    sudo --login --user=postgres psql $db <<< "REVOKE CONNECT ON DATABASE $db FROM public;"
+    sudo --login --user=postgres psql $db <<< "SELECT pg_terminate_backend (pg_stat_activity.pid) FROM pg_stat_activity WHERE pg_stat_activity.datname = '$db' AND pid <> pg_backend_pid();"
+    sudo --login --user=postgres dropdb $db
+}
+
+# Dump a database
+#
+# usage: ynh_psql_dump_db database
+# | arg: database    - the database name to dump (by default, $db_name)
+# | ret: the psqldump output
+#
+# example: ynh_psql_dump_db 'roundcube' > ./dump.sql
+#
+ynh_psql_dump_db() {
+    local database="${1:-$db_name}"
+    sudo --login --user=postgres pg_dump "$database"
+}
+
+# Create a user
+#
+# [internal] ... handled by the core / "database resource"
+#
+# usage: ynh_psql_create_user user pwd
+# | arg: user - the user name to create
+# | arg: pwd - the password to identify user by
+#
+ynh_psql_create_user() {
+    local user=$1
+    local pwd=$2
+    sudo --login --user=postgres psql <<< "CREATE USER $user WITH ENCRYPTED PASSWORD '$pwd'"
+}
+
+# Check if a psql user exists
+#
+# [internal]
+#
+# usage: ynh_psql_user_exists user
+# | arg: user=    - the user for which to check existence
+# | exit: Return 1 if the user doesn't exist, 0 otherwise
+#
+ynh_psql_user_exists() {
+    local user=$1
+    sudo --login --user=postgres psql -tAc "SELECT rolname FROM pg_roles WHERE rolname='$user';" | grep --quiet "$user"
+}
+
+# Check if a psql database exists
+#
+# [internal]
+#
+# usage: ynh_psql_database_exists database
+# | arg: database    - the database for which to check existence
+# | exit: Return 1 if the database doesn't exist, 0 otherwise
+#
+ynh_psql_database_exists() {
+    local database=$1
+    sudo --login --user=postgres psql -tAc "SELECT datname FROM pg_database WHERE datname='$database';" | grep --quiet "$database"
+}
+
+# Drop a user
+#
+# [internal] ... handled by the core / "database resource"
+#
+# usage: ynh_psql_drop_user user
+# | arg: user - the user name to drop
+#
+ynh_psql_drop_user() {
+    sudo --login --user=postgres psql <<< "DROP USER ${1};"
+}

helpers/helpers.v2.1.d/redis

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+# get the first available redis database
+#
+# usage: ynh_redis_get_free_db
+# | returns: the database number to use
+ynh_redis_get_free_db() {
+    local result max db
+    result=$(redis-cli INFO keyspace)
+
+    # get the num
+    max=$(cat /etc/redis/redis.conf | grep ^databases | grep -Eow "[0-9]+")
+
+    db=0
+    # default Debian setting is 15 databases
+    for i in $(seq 0 "$max"); do
+        if ! echo "$result" | grep -q "db$i"; then
+            db=$i
+            break 1
+        fi
+        db=-1
+    done
+
+    test "$db" -eq -1 && ynh_die "No available Redis databases..."
+
+    echo "$db"
+}
+
+# Create a master password and set up global settings
+# Please always call this script in install and restore scripts
+#
+# usage: ynh_redis_remove_db database
+# | arg: database - the database to erase
+ynh_redis_remove_db() {
+    local db=$1
+    redis-cli -n "$db" flushdb
+}