public-scripts/friendica-fix-avatar-permissions.sh

#!/bin/bash
IFS="
"
#Set your parameters here
site=friendica.example.net
user=friendica
group=friendica
fileperm=644
folderperm=755
folder=/var/www/friendica
folderescaped=${folder////\\/}
tmpfile=/tmp/friendica-fix-avatar-permissions.txt
avatarfolder=avatar

loop_1(){
	if [[ "${p}" =~ .jpeg || "${p}" =~ .jpg ]]
	then
		nice -n 10 jpegoptim -m 76 "${p}" #&> /dev/null
	elif [[ "${p}" =~  .gif ]]
	then
		nice -n 10 gifsicle --batch -O3 --lossy=80 --colors=255 "${p}" #&> /dev/null
		#Specific compression for large GIF files
		while [[ $(stat -c%s "${p}" || 0) -ge 512000 ]]
		do
			nice -n 10 gifsicle "${p}" $(seq -f "#%g" 0 2 99) -O3 --lossy=80 --colors=255 -o "${p}" #&> /dev/null
		done
	elif [[ "${p}" =~ .png ]]
	then
		nice -n 10 oxipng -o max "${p}" #&> /dev/null
	elif [[ "${p}" =~ .webp ]]
	then
		nice -n 10 cwebp -mt -af -quiet "${p}" -o /tmp/temp.webp #&> /dev/null
		if [[ -f /tmp/temp.webp ]]
		then
			size_new=$(stat -c%s "/tmp/temp.webp" || 0 )
			size_original=$(stat -c%s "${p}")
			if [[ "${size_original}" -gt "${size_new}" ]]
			then
				mv /tmp/temp.webp "${p}" #&> /dev/null
			else
				rm /tmp/temp.webp #&> /dev/null
			fi
		fi
	fi
}

cd "${folder}" || exit
if [[ ! -f "${tmpfile}" ]]
then
	sudo -u "${user}" bin/console movetoavatarcache | sudo tee "${tmpfile}" #&> /dev/null
fi
grep -e "https://${site}/${avatarfolder}/" "${tmpfile}" | sed -e "s/.*${site}/${folderescaped}/g" -e "s/?ts=.*//g" | (
	while read -r i
	do
		for p in "${i}" "${i//-320/-80}" "${i//-320/-48}"
		do
			loop_1 "${p}" &
			if [[ $(jobs -r -p | wc -l) -ge $(getconf _NPROCESSORS_ONLN) ]]
			then
				wait -n
			fi
		done
	done
)
wait
rm "${tmpfile}"
/usr/bin/find "${folder}"/avatar -type d -empty -delete
/usr/bin/chmod "${folderperm}" "${folder}"/avatar
/usr/bin/chown -R "${user}":"${group}" "${folder}"/avatar
/usr/bin/find "${folder}"/avatar -depth -not -user "${user}" -or -not -group "${group}" -print0 | xargs -0 -r chown -v "${user}":"${group}" #&> /dev/null
/usr/bin/find "${folder}"/avatar -depth -type d -and -not -type f -and -not -perm "${folderperm}" -print0 | xargs -0 -r chmod -v "${folderperm}" #&> /dev/null
/usr/bin/find "${folder}"/avatar -depth -type f -and -not -type d -and -not -perm "${fileperm}" -print0 | xargs -0 -r chmod -v "${fileperm}" #&> /dev/null