LimeSurvey update script for system administrators
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Authored by valerio.bozzolan on Sep 22 2023, 10:08.

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	F3859370: LimeSurvey update script for system administrators
	Jun 13 2025, 11:11

	F1820838: LimeSurvey update script for system administrators
	Sep 22 2023, 10:17

	F1820830: LimeSurvey update script for system administrators
	Sep 22 2023, 10:13

	F1820825: LimeSurvey update script for system administrators
	Sep 22 2023, 10:09

	F1820824: LimeSurvey update script
	Sep 22 2023, 10:08

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	#!/bin/bash -e
	##################################################################
	# LimeSurvey command line update script for system administrators.
	#
	# IMPORTANT: Please donate to LimeSurvey!
	#
	# Author: Valerio Bozzolan
	# License: GNU GPL v3+
	# Date: 2023
	# Source code: https://gitpull.it/P24
	##################################################################

	#
	# CONFIGURATION STARTS HERE! \o/
	#

	# URL of your LimeSurvey.
	url="https://survey.wikimedia.ch"

	# Parent directory of your LimeSurvey installation.
	base="/var/www/wikimedia.ch/limesurvey"

	# Temporary directory used to download stuff.
	temp="/var/www/wikimedia.ch/limesurvey/tmp"

	# Database name to be backupped.
	dbname="limesurvey_production"

	# Symbolic link that is supposed to point to the specific LimeSurvey version to be adopted.
	# I organized in such way my filesystem, so "www" points to "limesurvey-1.2.3" and I can
	# swap whenever I want.
	production_symlink="/var/www/wikimedia.ch/limesurvey/www"

	# Script that will be executed just before promoting the new version to production.
	# In my case this scripts sets some files as "root:root" so are not writable, and some
	# other files are assigned to the webserver user. Essentially it depends by you.
	harden_script="/root/scripts/limesurvey-harden.sh"

	# Services that will be restarted just after promoting the new version to production.
	services_to_be_restarted="php7.4-fpm"

	#
	# CONFIGURATION ENDS HERE! \o/
	#

	# No hardening, no party.
	if ! [[ -x "$harden_script" ]]; then
	echo "The post-install script (hardening script) does not exist or is not executable."
	echo " $harden_script"
	exit 2
	fi

	# No symbolic link, no party.
	if ! [[ -L "$production_symlink" ]]; then
	echo "This path is supposed to be a symbolic link. Not applicable."
	echo " $production_symlink"
	exit 2
	fi

	# https://download.limesurvey.org/latest-stable-release/limesurvey5.2.5+211207.zip
	lime_zip_url="$1"

	# no lime_zip_url no party
	if [[ -z "$lime_zip_url" ]]; then
	echo "Missing download ZIP URL"
	echo "Go here: https://community.limesurvey.org/downloads/"
	echo "And paste the ZIP URL as first parameter"
	exit 1
	fi

	# no lime_zip_url no party
	lime_version="$2"
	if [ -z "$lime_version" ]; then
	echo "Please add the version code as second parameter"
	echo "E.g. 5.4.1"
	exit 2
	fi

	lime_version="limesurvey-$lime_version"
	lime_version_base="$base/$lime_version"
	lime_version_tmp="$temp/$lime_version"
	lime_version_tmp_zip="$temp/$lime_version.zip"

	# Do not re-extract over an already-existing LimeSurvey.
	if [[ -d "$lime_version_tmp" ]]; then
	echo "This path already exists. Please remove it before using as download destination:"
	echo " $lime_version_tmp"
	exit 2
	fi

	# Do not overwrite a dump.
	if [[ -f "$temp/$dbname-$lime_version.sql" ]]; then
	echo "There is already a dump with this name. Please move it or delete it:"
	echo " $temp/$dbname-$lime_version.sql"
	exit 2
	fi

	echo "Downloading"
	wget "$lime_zip_url" -O "$lime_version_tmp_zip"

	echo "Extraction"
	mkdir --parents "$lime_version_tmp"
	unzip "$lime_version_tmp_zip" -d "$lime_version_tmp"

	echo "Backup database in a private file"
	touch "$temp/$dbname-$lime_version.sql"
	chmod o= "$temp/$dbname-$lime_version.sql"
	mysqldump "$dbname" > "$temp/$dbname-$lime_version.sql"

	# print firm
	md5sum "$lime_version_tmp_zip"
	sha1sum "$lime_version_tmp_zip"
	sha256sum "$lime_version_tmp_zip"

	# swap /limesurvey-123/limesurvey to just /limesurvey
	echo "Preparation"
	mv --no-target-directory "$lime_version_tmp/limesurvey" "$lime_version_base"

	echo "Import config and upload"
	cp --archive "$production_symlink/application/config/security.php" "$lime_version_base/application/config/security.php"
	cp --archive "$production_symlink/application/config/config.php" "$lime_version_base/application/config/config.php"
	cp --archive "$production_symlink/upload" "$lime_version_base/upload"

	echo "Hardening"
	$harden_script "$lime_version_base"

	echo "Push in production"
	rm --verbose "$production_symlink"
	ln --verbose --symbolic --no-dereference "$lime_version_base" "$production_symlink"

	# clean downloaded file
	echo "Clean"
	rmdir "$lime_version_tmp"
	rm "$lime_version_tmp_zip"

	echo "Now please update from your web interface"
	echo "$url"

	echo "Remember to clean this backup:"
	echo " $temp/$dbname-$lime_version.sql"

	echo "Restarting $services_to_be_restarted"
	systemctl restart "$services_to_be_restarted"

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valerio.bozzolan created this paste.Sep 22 2023, 10:08

valerio.bozzolan changed the title of this paste from LimeSurvey update script to LimeSurvey update script for system administrators.

valerio.bozzolan updated the paste's language from php to bash.

valerio.bozzolan edited the content of this paste. (Show Details)

valerio.bozzolan added a project: LimeSurvey.

valerio.bozzolan edited the content of this paste. (Show Details)Sep 22 2023, 10:13

valerio.bozzolan edited the content of this paste. (Show Details)Sep 22 2023, 10:17

valerio.bozzolan edited the content of this paste. (Show Details)Jun 13 2025, 11:11

Proposed additional patch by Carsten, to automatically fetch the version code:

lime_zip_url=`curl -k https://community.limesurvey.org/downloads/ 2>/dev/null | grep -Eo "https://download.limesurvey.org/latest-master/limesurvey
[0-9\.\+]+\.zip"`
echo "Download-URL: $lime_zip_url"

# no lime_zip_url no party
if [ -z "$lime_zip_url" ]; then
        echo "Cannot extract download ZIP URL from https://community.limesurvey.org/downloads/"
        exit 1
fi

# no lime_zip_url no party
regex="([0-9]+\.[0-9]+\.[0-9]+)"

if [[ $lime_zip_url =~ $regex ]]; then
        lime_version=${BASH_REMATCH[1]}
        echo "Version: $lime_version"
else
        echo "Could not fetch version."
        exit 1
fi

I still need to review it but seems great. Thanks Carsten!

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