Here is a short overview of changes and associated default configuration variables (most everything is off by default) also see ~soon to be updated~: http://www.mediawiki.org/wiki/Media_Projects_Overview
= Upload Improvements =
==Upload API ==
* Based on the early work of Bryan Tong and others it adds the upload option to the api.
* We rewrite Special:Upload page to include use the new refactoring
* Added in token checks in both the SpecialUpload.php page so avoids DOS / xss copy-by-url JavaScript based cross site POST file submissions
== Copy by URL==
$wgAllowCopyUploads = false;
* http class rewrite includes a new http background download see: includes/HttpFunctions.php
* spins off a php process that calls: maintenance/http_session_download.php
* pushes updates to the session and gives the user a progress bar on http copy uploads from other server progress (using js2 upload interface) (if not using the js2 upload interface it does the request in-place but the download is limited to the php ini timeout time)
== Firefogg ==
* Firefogg enables resumable upload by chunks
* progress indicators and conditional invokation (js2 system)
* and of-course client side transcoding.
= Script Server =
$wgEnableScriptLoader = false;
* off by default if $wgEnableScriptLoader is turned on script files are grouped, gziped, cached etc.
for more info see: http://www.mediawiki.org/wiki/Extension:ScriptLoader
* Includes some early skin js include fixes (skin/script system still lots of love)
* Includes a "javascript class autoloader" this is packaged into mwEmbed so that the mwEmbed library can work in stand alone mode (while retaining localization and script serving) (one such application is the make page for firefogg.org : http://www.firefogg.org/make/index.html )
* The file that contains the autojavascript loading classes is: js2/php/jsAutoloadLocalClasses.php
* One can use this auto class loading dependency system with extensions and add-ons but I need to better document that.
= js2 system / mwEmbed=
$wgEnableJS2system = false
* includes initial rewrite towards more jquery based javascript code
* especially for the Special:Upload page.
* Also the edit page include support for the "add-media-wizard"
* includes dependency loader for javascript that optionally takes advantage of the script-loader
* remote embedding of javascript interfaces (like embedding video, or commons media searching)
* $wgDebugJavaScript = false; .. .this variable lets you always get "always fresh javascript". When used with the script-loader it does not minify the script-loader output.
= mwEmbed =
* Will commit a separate patch to oggHandler that conditionally outputs <video tag> to use the new javascript video player.
** mv_embed player includes: play-head, volume control, remote embedding, oggz-chop support across plugins.
* add-media-wizard adds easy inserts of media to pages (with import)
== jQuery==
* we include a base install of jQuery, jQuery ui and some plugins.
* all the javascript classes are in the scriptloader so its easy to load any set of jquery ui components that you may need using the script-server. You get a callback so you can then execute js with dependencies loaded.
== other stuff ==
there is a bit more code in js2 that pertains to sequence editing, timed text display and basic image editing. We include a base import of pixastic-lib & pixastic-editor... will work with the pixastic developer to try and ensure upstream compatibility on our usage of the library for in-browser photo and sequence manipulation.
* Instead of hiding read-restricted modules, throw an error when a user without read rights tries to use them
* Do the same for write modules when $wgEnableWriteAPI is false
* Indicate whether a module needs read or write rights in action=help and action=paraminfo
* BREAKING CHANGE: action=purge now requires write rights and, for anonymous users, a POST request
* Add $wgAPIMaxUncachedDiffs (default 1) which controls how many non-cached diffs will be served per request
* Tweak DifferenceEngine.php a bit to make cache status accessible, and remove a useless 'parseinline' which broke diff generation in the API
* Added Title::moveSubpages() as a backend function
** Didn't update SpecialMovepage to use this; left to braver souls
* Fix handling of errors on talk page move (will backport)
* This means queries could possibly return fewer results than the limit and still set a query-continue
* Add iicontinue, rvcontinue, cicontinue, incontinue, amfrom to faciliate query-continue for these modules
* Implemented by blocking additions to the ApiResult object if they would make it too large
** Important things like query-continue values and warnings are exempt from this check
** RSS feeds and exported XML are also exempted (size-checking them would be too messy)
** Result size is checked against $wgAPIMaxResultSize, which defaults to 8 MB
For those who really care, per-file details follow:
ApiResult.php:
* Introduced ApiResult::$mSize which keeps track of the result size.
* Introduced ApiResult::size() which calculates an array's size
(which is the sum of the strlen()s of its elements).
* ApiResult::addValue() now checks that the result size stays below
$wgAPIMaxResultSize. If the item won't fit, it won't be added and addValue()
will return false. Callers should check the return value and set a
query-continue if it's false.
* Closed the back door that is ApiResult::getData(): callers can't manipulate
the data array directly anymore so they can't bypass the result size limit.
* Added ApiResult::setIndexedTagName_internal() which will call
setIndexedTagName() on an array already in the result. This is needed for the
'new' order of adding results, which means addValue()ing one result at a time
until you hit the limit or run out, then calling this function to set the tag
name.
* Added ApiResult::disableSizeCheck() and enableSizeCheck() which disable and
enable size checking in addValue(). This is used for stuff like query-continue
elements and warnings which shouldn't count towards the result size.
* Added ApiResult::unsetValue() which removes an element from the result and
decreases $mSize.
ApiBase.php:
* Like ApiResult::getData(), ApiBase::getResultData() no longer returns a
reference.
* Use ApiResult::disableSizeCheck() in ApiBase::setWarning()
ApiQueryBase.php:
* Added ApiQueryBase::addPageSubItem(), which adds page subitems one item
at a time.
* addPageSubItem() and addPageSubItems() now return whether the subitem
fit in the result.
* Use ApiResult::disableSizeCheck() in setContinueEnumParameter()
ApiMain.php:
* Use ApiResult::disableSizeCheck() in ApiMain::substituteResultWithError()
* Use getParameter() rather than $mRequest to obtain requestid
DefaultSettings.php:
* Added $wgAPIMaxResultSize, with a default value of 8 MB
ApiQuery*.php:
* Added results one at a time, and set a query-continue if the result is full.
ApiQueryLangLinks.php and friends:
* Migrated from addPageSubItems() to addPageSubItem(). This eliminates the
need for $lastId.
ApiQueryAllLinks.php, ApiQueryWatchlist.php, ApiQueryAllimages.php, ApiQuerySearch.php:
* Renamed $data to something more appropriate ($pageids, $ids or $titles)
ApiQuerySiteinfo.php:
* Abuse siprop as a query-continue parameter and set it to all props that
couldn't be processed.
ApiQueryRandom.php:
* Doesn't do continuations, because the result is supposed to be random.
* Be smart enough to not run the second query if the results of the first
didn't fit.
ApiQueryImageInfo.php, ApiQueryRevisions.php, ApiQueryCategoryInfo.php, ApiQueryInfo.php:
* Added continue parameter which basically skips the first so many items
ApiQueryBacklinks.php:
* Throw the result in a big array first and addValue() that one element at a time if necessary
** This is necessary because the results aren't retrieved in order
* Introduced $this->pageMap to map namespace and title to page ID
* Rewritten extractRowInfo() and extractRedirRowInfo() a little
* Declared all private member variables explicitly
ApiQueryDeletedrevs.php:
* Use a pagemap just like in Backlinks
* Introduce fake page IDs and keep track of them so we know where to add what
** This doesn't change the output format, because the fake page IDs start at 0 and are consecutive
ApiQueryAllmessages.php:
* Add amfrom to facilitate query-continue
ApiQueryUsers.php:
* Rewrite: put the getOtherUsersInfo() code in execute()
* Move undo text generation from EditPage::getContent() to Article::getUndoText()
* Add some more examples for action=edit
* ApiEditPage.php: don't mix !is_null() and isset(), be consistent
* BREAKING CHANGE: Alter action=protect output to display multiple expiry times
* BREAKING CHANGE: Error messages invalidexpiry and pastexpiry now state the expiry they're about
* Add ApiBase::PARAM_ALLOW_DUPLICATES and honor it in ApiBase::getParameterFromSettings()
** Backend code moved to RecentChange::reallyMarkPatrolled() and doMarkPatrolled()
** Adapted Article::markpatrolled()
* (bug 15466) Added action=patrol to the API. Modified patch by Soxred93
* Added rctoken=patrol to list=recentchanges
* Detect duplicate warnings in ApiBase::setWarning()
* (bug 15048) Added limit field for multivalue parameters to action=paraminfo output.
* When the limit on multivalue parameters is exceeded, a warning is issued
