Meza/Ensuring users get the latest file
Fixed task T496705
Add ImgAuthModifyHeaders hook to img_auth.php to modify headers |
The problem
[edit]after you "Upload a new version of this file" for a file .. other pages in the wiki that link to that file do not automatically result in the latest version without some manual per-page coercing by the users .. how can admins guarantee that users will always see the "current version" of an image after it has been updated?
Possible Solutions
[edit]Which of these options and how to configure them is still a topic of discussion. If you have any specific solution that works for you.. please contribute to this page.
tools and solutions listed so far include;
MW update
[edit]https://gerrit.wikimedia.org/r/#/c/mediawiki/core/+/496705/
apache solution
[edit]https://httpd.apache.org/docs/current/mod/mod_expires.html
Stashbot
[edit]https://wikitech.wikimedia.org/wiki/Tool:Stashbot
Hack img_auth.php
[edit]Resolve Bug
[edit]https://phabricator.wikimedia.org/T19577
Header Modules
[edit]configure a <location> for images, and use the headers module to add headers http://httpd.apache.org/docs/current/mod/mod_headers.html#header
Other
[edit]https://developer.mozilla.org/docs/Web/HTTP/Headers/Cache-Control has other caching possibilities
Extension:WikiDexFileRepository
[edit]using: https://github.com/ciencia/mediawiki-extensions-WikiDexFileRepository In Localsettings:
wfLoadExtension( 'WikiDexFileRepository' ); $wgLocalFileRepo = [ 'class' => 'LocalWikiDexRepo', 'name' => 'local', 'directory' => $wgUploadDirectory, 'url' => $wgUploadBaseUrl ? $wgUploadBaseUrl . $wgUploadPath : $wgUploadPath, 'hashLevels' => 2, 'thumbScriptUrl' => $wgThumbnailScriptPath, 'transformVia404' => true, 'deletedDir' => $wgDeletedDirectory, 'deletedHashLevels' => 3 ];
this extension adds extra "/latest/<timestamp>" to the image/file path before the filename, which must be stripped out by rewrite rules in .htaccess
Such as the following for NGINX
map $mwuploads_longcache $mwuploads_expire { default 5m; 1 30d; } map $uri $images_thumbfallback { default @404; "~/mwuploads/wikidex/" @thumb; } map $uri $images_mwinstallpath { default "/dev/null"; "~/mwuploads/wikidex/" "/home/www/www.wikidex.net/mediawiki-1.30"; } map $request_uri $thumbfile { default "xx"; "~/mwuploads/[a-z0-9]+/thumb/[0-9a-f]/[0-9a-f][0-9a-f]/latest/[0-9]+/(?<xthumbfile>[^/]+)/[0-9]+px-.*$" "$xthumbfile"; "~/mwuploads/[a-z0-9]+/thumb/[0-9a-f]/[0-9a-f][0-9a-f]/(?<xthumbfile>[^/]+)/[0-9]+px-.*$" "$xthumbfile"; "~/mwuploads/[a-z0-9]+/thumb/archive/[0-9a-f]/[0-9a-f][0-9a-f]/(?<xthumbfile>[^/]+)/[0-9]+px-.*$" "$xthumbfile"; } server { location /mwuploads/ { alias /data/mwuploads/public/; expires $mwuploads_expire; # Imagen con /latest/timestamp/, se reescribe, expires largo location ~ "^/mwuploads/[a-z0-9]+/(?:thumb/)?[0-9a-f]/[0-9a-f][0-9a-f]/latest/[0-9]+/.*$" { set $mwuploads_longcache 1; expires $mwuploads_expire; rewrite "^/mwuploads/(?<startpath>[a-z0-9]+/(?:thumb/)?[0-9a-f]/[0-9a-f][0-9a-f]/)latest/[0-9]+/(?<endpath>.*)$" "/mwuploads/$startpath$endpath"; } # Imagen directa en /archive, expires largo location ~ "^/mwuploads/[a-z0-9]+/archive" { set $mwuploads_longcache 1; expires $mwuploads_expire; } # Imagen thumb # Ojo, las variables del regexp se usan en @thumb location ~ "^/mwuploads/[a-z0-9]+/thumb/[0-9a-f]/[0-9a-f][0-9a-f]/[^/]+/(?<thumbwidth>[0-9]+)px-.*$" { set $thumbarchived 0; expires $mwuploads_expire; try_files $uri $images_thumbfallback; } # Imagen thumb de archive location ~ "^/mwuploads/[a-z0-9]+/thumb/archive/[0-9a-f]/[0-9a-f][0-9a-f]/[^/]+/(?<thumbwidth>[0-9]+)px-.*$" { set $mwuploads_longcache 1; set $thumbarchived 1; expires $mwuploads_expire; try_files $uri $images_thumbfallback; } } location @thumb { expires $mwuploads_expire; # Run the thumb.php script include /etc/nginx/fastcgi_params; fastcgi_param SCRIPT_FILENAME $images_mwinstallpath/thumb.php; fastcgi_param QUERY_STRING f=$thumbfile&width=$thumbwidth&archived=$thumbarchived; fastcgi_pass unix:/run/php/php-fpm-wikidex-images.sock; } location @404 { return 404; } location / { return 404; } }