mirror of
https://github.com/YunoHost-Apps/searx_ynh.git
synced 2024-09-03 20:16:30 +02:00
100 lines
No EOL
3.6 KiB
Bash
100 lines
No EOL
3.6 KiB
Bash
#!/bin/bash
|
|
|
|
#=================================================
|
|
# EXPERIMENTAL HELPERS
|
|
#=================================================
|
|
|
|
# Remove a file or a directory securely
|
|
#
|
|
# usage: ynh_secure_remove --file=path_to_remove [--regex=regex to append to $file] [--non_recursive] [--dry_run]
|
|
# | arg: -f, --file - File or directory to remove
|
|
# | arg: -r, --regex - Regex to append to $file to filter the files to remove
|
|
# | arg: -n, --non_recursive - Perform a non recursive rm and a non recursive search with the regex
|
|
# | arg: -d, --dry_run - Do not remove, only list the files to remove
|
|
#
|
|
# Requires YunoHost version 2.6.4 or higher.
|
|
ynh_secure_remove () {
|
|
# Declare an array to define the options of this helper.
|
|
local legacy_args=frnd
|
|
declare -Ar args_array=( [f]=file= [r]=regex= [n]=non_recursive [d]=dry_run )
|
|
local file
|
|
local regex
|
|
local dry_run
|
|
local non_recursive
|
|
# Manage arguments with getopts
|
|
ynh_handle_getopts_args "$@"
|
|
regex=${regex:-}
|
|
dry_run=${dry_run:-0}
|
|
non_recursive=${non_recursive:-0}
|
|
|
|
local forbidden_path="
|
|
/var/www \
|
|
/home/yunohost.app"
|
|
|
|
# Fail if no argument is provided to the helper.
|
|
if [ -z "$file" ]
|
|
then
|
|
ynh_print_warn --message="ynh_secure_remove called with no argument --file, ignoring."
|
|
return 0
|
|
fi
|
|
|
|
if [ -n "$regex" ]
|
|
then
|
|
if [ -e "$file" ]
|
|
then
|
|
if [ $non_recursive -eq 1 ]; then
|
|
local recursive="-maxdepth 1"
|
|
else
|
|
local recursive=""
|
|
fi
|
|
# Use find to list the files in $file and grep to filter with the regex
|
|
files_to_remove="$(find -P "$file" $recursive -name ".." -prune -o -print | grep --extended-regexp "$regex")"
|
|
else
|
|
ynh_print_info --message="'$file' wasn't deleted because it doesn't exist."
|
|
return 0
|
|
fi
|
|
else
|
|
files_to_remove="$file"
|
|
fi
|
|
|
|
# Check each file before removing it
|
|
while read file_to_remove
|
|
do
|
|
if [ -n "$file_to_remove" ]
|
|
then
|
|
# Check all forbidden path before removing anything
|
|
# First match all paths or subpaths in $forbidden_path
|
|
if [[ "$forbidden_path" =~ "$file_to_remove" ]] || \
|
|
# Match all first level paths from / (Like /var, /root, etc...)
|
|
[[ "$file_to_remove" =~ ^/[[:alnum:]]+$ ]] || \
|
|
# Match if the path finishes by /. Because it seems there is an empty variable
|
|
[ "${file_to_remove:${#file_to_remove}-1}" = "/" ]
|
|
then
|
|
ynh_print_err --message="Not deleting '$file_to_remove' because this path is forbidden !!!"
|
|
|
|
# If the file to remove exists
|
|
elif [ -e "$file_to_remove" ]
|
|
then
|
|
if [ $dry_run -eq 1 ]
|
|
then
|
|
ynh_print_warn --message="File to remove: $file_to_remove"
|
|
else
|
|
if [ $non_recursive -eq 1 ]; then
|
|
local recursive=""
|
|
else
|
|
local recursive="--recursive"
|
|
fi
|
|
|
|
# Remove a file or a directory
|
|
rm --force $recursive "$file_to_remove"
|
|
fi
|
|
else
|
|
# Ignore non existent files with regex, as we likely remove the parent directory before its content is listed.
|
|
if [ -z "$regex" ]
|
|
then
|
|
ynh_print_info --message="'$file_to_remove' wasn't deleted because it doesn't exist."
|
|
fi
|
|
fi
|
|
fi
|
|
done <<< "$(echo "$files_to_remove")"
|
|
} |