From 218d44d4d0cfbd10eab8bf44af7d7cd54b749206 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlos=20Sol=C3=ADs?= <csolisr@azkware.net>
Date: Mon, 3 Feb 2025 16:14:57 +0000
Subject: [PATCH] feat: Add new script to fix invalid avatars

---
 friendica-remove-invalid-photos.sh | 83 ++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100755 friendica-remove-invalid-photos.sh

diff --git a/friendica-remove-invalid-photos.sh b/friendica-remove-invalid-photos.sh
new file mode 100755
index 0000000..e5da35d
--- /dev/null
+++ b/friendica-remove-invalid-photos.sh
@@ -0,0 +1,83 @@
+#!/bin/bash
+#Set your parameters here
+url=hub.azkware.net
+user=friendica
+group=www-data
+fileperm=640
+folderperm=750
+db=friendica
+folder=/var/www/friendica
+#Internal parameters:
+#Amount of times the loop has run
+iteration=0
+#Number of invalid avatars found. Set to 1 initially so we can run the loop at least once
+n=1
+#Number of entries processed
+nx=0
+#Generate an index to make searches faster
+((indexlength=37+${#url}))
+echo "Generating photo index..."
+mariadb $db -e "alter table contact add index if not exists photo_index (photo($indexlength))"
+#Go to the Friendica installation
+cd $folder || exit
+#Loop at least once, until no invalid avatars are found
+until [[ $n -eq 0 ]]
+do
+        #Add to the loop, reset values
+        iteration=$(("$iteration" + 1))
+        n=0
+        nx=0
+        dblist=$(mariadb $db -B -N -q -e "select id, photo, thumb, micro from contact where photo like 'https:\/\/$url/avatar/%' order by id")
+        m=$(echo "$dblist" | wc -l)
+        echo "$dblist" | while read -r id photo thumb micro
+        do
+                nx=$(("$nx" + 1))
+                folderescaped=${folder////\\/}
+                #Substitute the URL path with the folder path so we can search for it in the local file system
+                #Photo is nominally 320px, actually 300px
+                k_photo=$(echo "$photo" | sed -e "s/https:\/\/$url/$folderescaped/g" -e "s/\?ts=.*//g")
+                #Thumb is 80px
+                k_thumb=$(echo "$thumb" | sed -e "s/https:\/\/$url/$folderescaped/g" -e "s/\?ts=.*//g")
+                #Micro is 48px
+                k_micro=$(echo "$micro" | sed -e "s/https:\/\/$url/$folderescaped/g" -e "s/\?ts=.*//g")
+                #If any of the images is not found in the filesystem
+                if [[ ! -e "$k_photo" || ! -e "$k_thumb" || ! -e "$k_micro" ]]
+                then
+                        #If the avatar uses the standard fallback picture or is local, we cannot use it as a base
+                        avatar=$(mariadb $db -B -N -q -e "select avatar from contact where id = \"$id\" and not avatar like \"%$url\" and not avatar like \"%images/person%\"")
+                        #If we have a remote avatar as a fallback, download it
+                        if [[ $! -eq 0 && -n $avatar ]]
+                        then
+				echo "$id $avatar"
+                                sudo -u $user curl "$avatar" -s -o "$k_photo"
+                                #If the file is a valid picture (not empty, not text)
+                                if file "$k_photo" | grep -q -v -e "text" -e "Empty"
+                                then
+                                        #Also fetch for thumb/micro and resize
+                                        #As the photo is the largest version we have, we will use it as the base, and leave it last to convert
+                                        convert "$k_photo" -resize 80x80 -depth 16 "$k_thumb" && chmod "$fileperm" "$k_thumb" && chown "$user:$group" "$k_thumb"
+                                        convert "$k_photo" -resize 48x48 -depth 16 "$k_micro" && chmod "$fileperm" "$k_micro" && chown "$user:$group" "$k_micro"
+                                        convert "$k_photo" -resize 300x300 -depth 16 "$k_photo" && chmod "$fileperm" "$k_photo" && chown "$user:$group" "$k_photo"
+                                else
+                                        #If the avatar is not valid, set it as blank in the database
+                                        mariadb $db -e "update contact set avatar= \"\", photo = \"\", thumb = \"\", micro = \"\" where id = \"$id\""
+                                        rm -rf "$k_photo"
+                                fi
+                        else
+                                #If no remote avatar is found, then we blank the photo/thumb/micro and let the avatar cache process fix them later
+                                mariadb $db -e "update contact set photo = \"\", thumb = \"\", micro = \"\" where id = \"$id\""
+                        fi
+                        n=$(( n + 1 ))
+                fi
+                printf "\rIteration %s\tPhotos: %s\tEntry %s/%s " "$iteration" "$n" "$nx" "$m"
+        done
+        wait
+        printf "\nFixing folders and moving to avatar cache...\n"
+        sudo -u $user bin/console movetoavatarcache #&> /dev/null
+        find ./avatar -depth -not -user "$user" -or -not -group "$group" -exec chown -v "$user:$group" {} \;
+        find ./avatar -depth -type f -and -not -type d -and -not -perm "$fileperm" -exec chmod -v "$fileperm" {} \;
+        find ./avatar -depth -type d -and -not -perm "$folderperm" -exec chmod -v "$folderperm" {} \;
+	#chown -R "$user:$group" ./avatar
+done
+#Drop index in the end to save storage
+mariadb $db -e "alter table contact drop index photo_index"