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#!/bin/bash
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#=================================================
# SET ALL CONSTANTS
#=================================================
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pkg_dependencies = "php7.0-sqlite3"
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#=================================================
# EXPERIMENTAL HELPERS
#=================================================
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# Send an email to inform the administrator
#
# usage: ynh_send_readme_to_admin --app_message=app_message [--recipients=recipients] [--type=type]
# | arg: -m --app_message= - The file with the content to send to the administrator.
# | arg: -r, --recipients= - The recipients of this email. Use spaces to separate multiples recipients. - default: root
# example: "root admin@domain"
# If you give the name of a YunoHost user, ynh_send_readme_to_admin will find its email adress for you
# example: "root admin@domain user1 user2"
# | arg: -t, --type= - Type of mail, could be 'backup', 'change_url', 'install', 'remove', 'restore', 'upgrade'
ynh_send_readme_to_admin( ) {
# Declare an array to define the options of this helper.
declare -Ar args_array = ( [ m] = app_message = [ r] = recipients = [ t] = type = )
local app_message
local recipients
local type
# Manage arguments with getopts
ynh_handle_getopts_args " $@ "
app_message = " ${ app_message :- } "
recipients = " ${ recipients :- root } "
type = " ${ type :- install } "
# Get the value of admin_mail_html
admin_mail_html = $( ynh_app_setting_get $app admin_mail_html)
admin_mail_html = " ${ admin_mail_html :- 0 } "
# Retrieve the email of users
find_mails ( ) {
local list_mails = " $1 "
local mail
local recipients = " "
# Read each mail in argument
for mail in $list_mails
do
# Keep root or a real email address as it is
if [ " $mail " = "root" ] || echo " $mail " | grep --quiet "@"
then
recipients = " $recipients $mail "
else
# But replace an user name without a domain after by its email
if mail = $( ynh_user_get_info " $mail " "mail" 2> /dev/null)
then
recipients = " $recipients $mail "
fi
fi
done
echo " $recipients "
}
recipients = $( find_mails " $recipients " )
# Subject base
local mail_subject = " ☁️🆈🅽🅷☁️: \` $app \` "
# Adapt the subject according to the type of mail required.
if [ " $type " = "backup" ] ; then
mail_subject = " $mail_subject has just been backup. "
elif [ " $type " = "change_url" ] ; then
mail_subject = " $mail_subject has just been moved to a new URL! "
elif [ " $type " = "remove" ] ; then
mail_subject = " $mail_subject has just been removed! "
elif [ " $type " = "restore" ] ; then
mail_subject = " $mail_subject has just been restored! "
elif [ " $type " = "upgrade" ] ; then
mail_subject = " $mail_subject has just been upgraded! "
else # install
mail_subject = " $mail_subject has just been installed! "
fi
local mail_message = " This is an automated message from your beloved YunoHost server.
Specific information for the application $app .
$( if [ -n " $app_message " ]
then
cat " $app_message "
else
echo "...No specific information..."
fi )
---
Automatic diagnosis data from YunoHost
__PRE_TAG1__$( yunohost tools diagnosis | grep -B 100 "services:" | sed '/services:/d' ) __PRE_TAG2__"
# Store the message into a file for further modifications.
echo " $mail_message " > mail_to_send
# If a html email is required. Apply html tags to the message.
if [ " $admin_mail_html " -eq 1 ]
then
# Insert 'br' tags at each ending of lines.
ynh_replace_string " $" "<br>" mail_to_send
# Insert starting HTML tags
sed --in-place '1s@^@<!DOCTYPE html>\n<html>\n<head></head>\n<body>\n@' mail_to_send
# Keep tabulations
ynh_replace_string " " "\ \ " mail_to_send
ynh_replace_string "\t" "\ \ " mail_to_send
# Insert url links tags
ynh_replace_string "__URL_TAG1__\(.*\)__URL_TAG2__\(.*\)__URL_TAG3__" "<a href=\"\2\">\1</a>" mail_to_send
# Insert pre tags
ynh_replace_string "__PRE_TAG1__" "<pre>" mail_to_send
ynh_replace_string "__PRE_TAG2__" "<\pre>" mail_to_send
# Insert finishing HTML tags
echo -e "\n</body>\n</html>" >> mail_to_send
# Otherwise, remove tags to keep a plain text.
else
# Remove URL tags
ynh_replace_string "__URL_TAG[1,3]__" "" mail_to_send
ynh_replace_string "__URL_TAG2__" ": " mail_to_send
# Remove PRE tags
ynh_replace_string "__PRE_TAG[1-2]__" "" mail_to_send
fi
# Define binary to use for mail command
if [ -e /usr/bin/bsd-mailx ]
then
local mail_bin = /usr/bin/bsd-mailx
else
local mail_bin = /usr/bin/mail.mailutils
fi
if [ " $admin_mail_html " -eq 1 ]
then
content_type = "text/html"
else
content_type = "text/plain"
fi
# Send the email to the recipients
cat mail_to_send | $mail_bin -a " Content-Type: $content_type ; charset=UTF-8 " -s " $mail_subject " " $recipients "
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}
# Make the main steps to migrate an app to its fork.
#
# This helper has to be used for an app which needs to migrate to a new name or a new fork
# (like owncloud to nextcloud or zerobin to privatebin).
#
# This helper will move the files of an app to its new name
# or recreate the things it can't move.
#
# To specify which files it has to move, you have to create a "migration file", stored in ../conf
# This file is a simple list of each file it has to move,
# except that file names must reference the $app variable instead of the real name of the app,
# and every instance-specific variables (like $domain).
# $app is especially important because it's this variable which will be used to identify the old place and the new one for each file.
#
# If a database exists for this app, it will be dumped and then imported in a newly created database, with a new name and new user.
# Don't forget you have to then apply these changes to application-specific settings (depends on the packaged application)
#
# Same things for an existing user, a new one will be created.
# But the old one can't be removed unless it's not used. See below.
#
# If you have some dependencies for your app, it's possible to change the fake debian package which manages them.
# You have to fill the $pkg_dependencies variable, and then a new fake package will be created and installed,
# and the old one will be removed.
# If you don't have a $pkg_dependencies variable, the helper can't know what the app dependencies are.
#
# The app settings.yml will be modified as follows:
# - finalpath will be changed according to the new name (but only if the existing $final_path contains the old app name)
# - The checksums of php-fpm and nginx config files will be updated too.
# - If there is a $db_name value, it will be changed.
# - And, of course, the ID will be changed to the new name too.
#
# Finally, the $app variable will take the value of the new name.
# The helper will set the $migration_process variable to 1 if a migration has been successfully handled.
#
# You have to handle by yourself all the migrations not done by this helper, like configuration or special values in settings.yml
# Also, at the end of the upgrade script, you have to add a post_migration script to handle all the things the helper can't do during YunoHost upgrade (mostly for permission reasons),
# especially remove the old user, move some hooks and remove the old configuration directory
# To launch this script, you have to move it elsewhere and start it after the upgrade script.
# `cp ../conf/$script_post_migration /tmp`
# `(cd /tmp; echo "/tmp/$script_post_migration" | at now + 2 minutes)`
#
# usage: ynh_handle_app_migration migration_id migration_list
# | arg: -i, --migration_id= - ID from which to migrate
# | arg: -l, --migration_list= - File specifying every file to move (one file per line)
ynh_handle_app_migration ( ) {
#=================================================
# LOAD SETTINGS
#=================================================
old_app = $YNH_APP_INSTANCE_NAME
local old_app_id = $YNH_APP_ID
local old_app_number = $YNH_APP_INSTANCE_NUMBER
# Declare an array to define the options of this helper.
declare -Ar args_array = ( [ i] = migration_id = [ l] = migration_list = )
# Get the id from which to migrate
local migration_id
# And the file with the paths to move
local migration_list
# Manage arguments with getopts
ynh_handle_getopts_args " $@ "
# Get the new app id in the manifest
local new_app_id = $( grep \" id\" : ../manifest.json | cut -d\" -f4)
if [ $old_app_number -eq 1 ] ; then
local new_app = $new_app_id
else
local new_app = ${ new_app_id } __${ old_app_number }
fi
#=================================================
# CHECK IF IT HAS TO MIGRATE
#=================================================
migration_process = 0
if [ " $old_app_id " = = " $new_app_id " ]
then
# If the 2 id are the same
# No migration to do.
echo 0
return 0
else
if [ " $old_app_id " != " $migration_id " ]
then
# If the new app is not the authorized id, fail.
ynh_die " Incompatible application for migration from $old_app_id to $new_app_id "
fi
echo " Migrate from $old_app_id to $new_app_id " >& 2
#=================================================
# CHECK IF THE MIGRATION CAN BE DONE
#=================================================
# TODO Handle multi instance apps...
# Check that there is not already an app installed for this id.
( yunohost app list --installed -f " $new_app " | grep -q -w " $new_app " ) \
&& ynh_die " $new_app is already installed "
#=================================================
# CHECK THE LIST OF FILES TO MOVE
#=================================================
local temp_migration_list = " $( tempfile) "
# Build the list by removing blank lines and comment lines
sed '/^#.*\|^$/d' " ../conf/ $migration_list " > " $temp_migration_list "
# Check if there is no file in the destination
local file_to_move = ""
while read file_to_move
do
# Replace all occurences of $app by $new_app in each file to move.
local move_to_destination = " ${ file_to_move // \$ app / $new_app } "
test -e " $move_to_destination " && ynh_die " A file named $move_to_destination already exists. "
done < " $temp_migration_list "
#=================================================
# COPY YUNOHOST SETTINGS FOR THIS APP
#=================================================
local settings_dir = "/etc/yunohost/apps"
cp -a " $settings_dir / $old_app " " $settings_dir / $new_app "
# Replace the old id by the new one
ynh_replace_string " \(^id: .*\) $old_app " " \1 $new_app " " $settings_dir / $new_app /settings.yml "
# INFO: There a special behavior with yunohost app setting:
# if the id given in argument does not match with the id
# stored in the config file, the config file will be purged.
# That's why we use sed instead of app setting here.
# https://github.com/YunoHost/yunohost/blob/c6b5284be8da39cf2da4e1036a730eb5e0515096/src/yunohost/app.py#L1316-L1321
# Change the label if it's simply the name of the app
old_label = $( ynh_app_setting_get $new_app label)
if [ " ${ old_label ,, } " = = " $old_app_id " ]
then
# Build the new label from the id of the app. With the first character as upper case
new_label = $( echo $new_app_id | cut -c1 | tr [ :lower:] [ :upper:] ) $( echo $new_app_id | cut -c2-)
ynh_app_setting_set $new_app label $new_label
fi
#=================================================
# MOVE FILES TO THE NEW DESTINATION
#=================================================
while read file_to_move
do
# Replace all occurence of $app by $new_app in each file to move.
move_to_destination = " $( eval echo " ${ file_to_move // \$ app / $new_app } " ) "
local real_file_to_move = " $( eval echo " ${ file_to_move // \$ app / $old_app } " ) "
echo " Move file $real_file_to_move to $move_to_destination " >& 2
mv " $real_file_to_move " " $move_to_destination "
done < " $temp_migration_list "
#=================================================
# UPDATE SETTINGS KNOWN ENTRIES
#=================================================
# Replace nginx checksum
ynh_replace_string " \(^checksum__etc_nginx.*\)_ $old_app " " \1_ $new_app / " " $settings_dir / $new_app /settings.yml "
# Replace php5-fpm checksums
ynh_replace_string " \(^checksum__etc_php5.*[-_]\) $old_app " " \1 $new_app / " " $settings_dir / $new_app /settings.yml "
# Replace final_path
ynh_replace_string " \(^final_path: .*\) $old_app " " \1 $new_app " " $settings_dir / $new_app /settings.yml "
#=================================================
# MOVE THE DATABASE
#=================================================
db_pwd = $( ynh_app_setting_get $old_app mysqlpwd)
db_name = $( ynh_app_setting_get $old_app db_name)
# Check if a database exists before trying to move it
local mysql_root_password = $( cat $MYSQL_ROOT_PWD_FILE )
if [ -n " $db_name " ] && mysqlshow -u root -p$mysql_root_password | grep -q " ^| $db_name "
then
new_db_name = $( ynh_sanitize_dbid $new_app )
echo " Rename the database $db_name to $new_db_name " >& 2
local sql_dump = " /tmp/ ${ db_name } - $( date '+%s' ) .sql "
# Dump the old database
ynh_mysql_dump_db " $db_name " > " $sql_dump "
# Create a new database
ynh_mysql_setup_db $new_db_name $new_db_name $db_pwd
# Then restore the old one into the new one
ynh_mysql_connect_as $new_db_name $db_pwd $new_db_name < " $sql_dump "
# Remove the old database
ynh_mysql_remove_db $db_name $db_name
# And the dump
ynh_secure_remove " $sql_dump "
# Update the value of $db_name
db_name = $new_db_name
ynh_app_setting_set $new_app db_name $db_name
fi
#=================================================
# CREATE A NEW USER
#=================================================
# Check if the user exists on the system
if ynh_system_user_exists " $old_app "
then
echo " Create a new user $new_app to replace $old_app " >& 2
ynh_system_user_create $new_app
fi
#=================================================
# CHANGE THE FAKE DEPENDENCIES PACKAGE
#=================================================
# Check if a variable $pkg_dependencies exists
# If this variable doesn't exist, this part shall be managed in the upgrade script.
if [ -n " ${ pkg_dependencies :- } " ]
then
# Define the name of the package
local old_package_name = " ${ old_app //_/- } -ynh-deps "
local new_package_name = " ${ new_app //_/- } -ynh-deps "
if ynh_package_is_installed " $old_package_name "
then
# Install a new fake package
app = $new_app
ynh_install_app_dependencies $pkg_dependencies
# Then remove the old one
app = $old_app
ynh_remove_app_dependencies
fi
fi
#=================================================
# UPDATE THE ID OF THE APP
#=================================================
app = $new_app
# Set migration_process to 1 to inform that an upgrade has been made
migration_process = 1
fi
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}
