yunohost/helpers/helpers.v1.d/mysql
2024-08-31 12:22:40 +02:00

262 lines
7.4 KiB
Bash

#!/bin/bash
# Open a connection as a user
#
# usage: ynh_mysql_connect_as --user=user --password=password [--database=database]
# | arg: -u, --user= - the user name to connect as
# | arg: -p, --password= - the user password
# | arg: -d, --database= - the database to connect to
#
# examples:
# ynh_mysql_connect_as --user="user" --password="pass" <<< "UPDATE ...;"
# ynh_mysql_connect_as --user="user" --password="pass" < /path/to/file.sql
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_connect_as() {
# Declare an array to define the options of this helper.
local legacy_args=upd
local -A args_array=([u]=user= [p]=password= [d]=database=)
local user
local password
local database
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
database="${database:-}"
mysql --user="$user" --password="$password" --batch "$database"
}
# Execute a command as root user
#
# usage: ynh_mysql_execute_as_root --sql=sql [--database=database]
# | arg: -s, --sql= - the SQL command to execute
# | arg: -d, --database= - the database to connect to
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_execute_as_root() {
# Declare an array to define the options of this helper.
local legacy_args=sd
local -A args_array=([s]=sql= [d]=database=)
local sql
local database
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
database="${database:-}"
if [ -n "$database" ]; then
database="--database=$database"
fi
mysql -B "$database" <<< "$sql"
}
# Execute a command from a file as root user
#
# usage: ynh_mysql_execute_file_as_root --file=file [--database=database]
# | arg: -f, --file= - the file containing SQL commands
# | arg: -d, --database= - the database to connect to
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_execute_file_as_root() {
# Declare an array to define the options of this helper.
local legacy_args=fd
local -A args_array=([f]=file= [d]=database=)
local file
local database
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
database="${database:-}"
if [ -n "$database" ]; then
database="--database=$database"
fi
mysql -B "$database" < "$file"
}
# Create a database and grant optionnaly privilegies to a user
#
# [internal]
#
# 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
#
# Requires YunoHost version 2.2.4 or higher.
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
ynh_mysql_execute_as_root --sql="$sql"
}
# Drop a database
#
# [internal]
#
# 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
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_drop_db() {
ynh_mysql_execute_as_root --sql="DROP DATABASE ${1};"
}
# Dump a database
#
# usage: ynh_mysql_dump_db --database=database
# | arg: -d, --database= - the database name to dump
# | ret: The mysqldump output
#
# example: ynh_mysql_dump_db --database=roundcube > ./dump.sql
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_dump_db() {
# Declare an array to define the options of this helper.
local legacy_args=d
local -A args_array=([d]=database=)
local database
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
mysqldump --single-transaction --skip-dump-date --routines "$database"
}
# Create a user
#
# [internal]
#
# usage: ynh_mysql_create_user user pwd [host]
# | arg: user - the user name to create
# | arg: pwd - the password to identify user by
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_create_user() {
ynh_mysql_execute_as_root \
--sql="CREATE USER '${1}'@'localhost' IDENTIFIED BY '${2}';"
}
# Check if a mysql user exists
#
# [internal]
#
# usage: ynh_mysql_user_exists --user=user
# | arg: -u, --user= - the user for which to check existence
# | ret: 0 if the user exists, 1 otherwise.
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_user_exists() {
# Declare an array to define the options of this helper.
local legacy_args=u
local -A args_array=([u]=user=)
local user
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
if [[ -z $(ynh_mysql_execute_as_root --sql="SELECT User from mysql.user WHERE User = '$user';") ]]; then
return 1
else
return 0
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]
#
# usage: ynh_mysql_drop_user user
# | arg: user - the user name to drop
#
# Requires YunoHost version 2.2.4 or higher.
ynh_mysql_drop_user() {
ynh_mysql_execute_as_root --sql="DROP USER '${1}'@'localhost';"
}
# Create a database, an user and its password. Then store the password in the app's config
#
# [packagingv1]
#
# usage: ynh_mysql_setup_db --db_user=user --db_name=name [--db_pwd=pwd]
# | arg: -u, --db_user= - Owner of the database
# | arg: -n, --db_name= - Name of the database
# | arg: -p, --db_pwd= - Password of the database. If not provided, a password will be generated
#
# After executing this helper, the password of the created database will be available in `$db_pwd`
# It will also be stored as "`mysqlpwd`" into the app settings.
#
# Requires YunoHost version 2.6.4 or higher.
ynh_mysql_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 "$@"
# Generate a random password
local new_db_pwd=$(ynh_string_random)
# If $db_pwd is not provided, use new_db_pwd instead for db_pwd
db_pwd="${db_pwd:-$new_db_pwd}"
ynh_mysql_create_db "$db_name" "$db_user" "$db_pwd"
ynh_app_setting_set --app=$app --key=mysqlpwd --value=$db_pwd
}
# 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
#
# Requires YunoHost version 2.6.4 or higher.
ynh_mysql_remove_db() {
# Declare an array to define the options of this helper.
local legacy_args=un
local -Ar args_array=([u]=db_user= [n]=db_name=)
local db_user
local db_name
# Manage arguments with getopts
ynh_handle_getopts_args "$@"
if ynh_mysql_database_exists "$db_name"; then
ynh_mysql_drop_db $db_name
else
ynh_print_warn --message="Database $db_name not found"
fi
# Remove mysql user if it exists
if ynh_mysql_user_exists --user=$db_user; then
ynh_mysql_drop_user $db_user
fi
}