Difference between revisions of "MediaWiki"

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[[Permitted user role]]s are specific access and ability permissions that can be assigned to customizable ''user groups''.
 
[[Permitted user role]]s are specific access and ability permissions that can be assigned to customizable ''user groups''.
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== Removing predefined groups == <!--T:48-->
 
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<!--T:49-->
 
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MediaWiki out of the box comes with a number of predefined groups.</translate>
 
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<translate>
 
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<!--T:50-->
 
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Most of these groups can be removed by unsetting the according array keys, among them <code>$wgGroupPermissions['<group-name>']</code>.</translate>
 
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<translate>
 
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<!--T:51-->
 
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For details see below.
 
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=== Example === <!--T:52-->
 
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<!--T:53-->
 
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This example will eliminate the bureaucrat group entirely.</translate>
 
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<translate>
 
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<!--T:54-->
 
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It is necessary to ensure that all six of these variables are unset for any group that one wishes to remove from being listed at <tvar|List>[[Special:ListGroupRights]]</>; however, merely unsetting $wgGroupPermissions will suffice to remove it from <tvar|UserRights>[[Special:UserRights]]</>.</translate>
 
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<translate>
 
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<!--T:55-->
 
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This code should be placed after any <code>require_once</code> lines that add extensions such as <tvar|RenameUser>{{ll|Extension:Renameuser}}</> containing code that gives bureaucrats group permissions by default.
 
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</translate>
 
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<syntaxhighlight lang="php">
 
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unset( $wgGroupPermissions['bureaucrat'] );
 
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unset( $wgRevokePermissions['bureaucrat'] );
 
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unset( $wgAddGroups['bureaucrat'] );
 
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unset( $wgRemoveGroups['bureaucrat'] );
 
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unset( $wgGroupsAddToSelf['bureaucrat'] );
 
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unset( $wgGroupsRemoveFromSelf['bureaucrat'] );
 
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</syntaxhighlight>
 
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<translate>
 
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<!--T:216-->
 
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In some extensions (Flow, Semantic MediaWiki, etc.), rights are added during extension registration or in a registration function. In this case, it could be necessary to use a registration function in LocalSettings.php to remove some predefined user groups:
 
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</translate>
 
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<syntaxhighlight lang="php">
 
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$wgExtensionFunctions[] = function() use ( &$wgGroupPermissions ) {
 
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    unset( $wgGroupPermissions['oversight'] );
 
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    unset( $wgGroupPermissions['flow-bot'] );
 
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};
 
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</syntaxhighlight>
 
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<translate>
 
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=== Note on the group called “user” === <!--T:202-->
 
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<!--T:203-->
 
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With the above mechanism, you can remove the groups sysop, bureaucrat and bot, which - if used - can be assigned through the usual [[<tvar|help>Special:MyLanguage/Help:User rights and groups</>|user permission system]].
 
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</translate>
 
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<translate>
 
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<!--T:204-->
 
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However, it is currently impossible to remove the <code>user</code> group.</translate>
 
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<translate>
 
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<!--T:205-->
 
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This group is ''not'' assigned through the usual permission system.</translate>
 
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<translate>
 
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<!--T:206-->
 
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Instead, every logged in user automatically is member of that group.</translate>
 
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<translate>
 
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<!--T:207-->
 
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This is hardcoded in MediaWiki and currently cannot be changed easily.
 
  
 
== List of permissions == <!--T:56-->
 
== List of permissions == <!--T:56-->

Revision as of 02:24, 1 October 2018

MediaWiki (hereinafter, the Software) is a free and open-source wiki software. The Software was originally developed for Wikipedia, but now the Software runs on many websites and has become the dominant software in its category. The Software is written in the PHP programming language and stores the contents into a set of databases.

The software is optimized to efficiently handle large projects, which can have terabytes of content and hundreds of thousands of hits per second. According to MediaWiki, achieving scalability through multiple layers of caching and database replication has been a major concern for developers. The software has more than 900 configuration settings and more than 1,900 extensions available for enabling various features to be added or changed.

On Wikipedia alone, more than 1000 automated and semi-automated bots and other tools have been developed to assist in editing. It has also been deployed by some companies as an internal knowledge management system, and some educators have assigned students to use the Software for collaborative group projects.


Permitted user roles

Permitted user roles are specific access and ability permissions that can be assigned to customizable user groups.

List of permissions

The following user rights are available in the latest version of MediaWiki.</translate> <translate> If you are using an older version, look at “Special:Version” on your wiki and see if your version is covered in the “Versions” column. </translate>

Template:Hl2 | <translate> Right</translate> Template:Hl2 | <translate> Description</translate> Template:Hl2 | <translate> User groups that have this right by default</translate> Template:Hl2 | <translate> Versions</translate>
Template:Hl3 colspan="4" |<translate> Reading</translate>
read Template:Int - <translate> when set to false, override for specific pages with <tvar|WhitelistRead>Template:Ll</></translate>

Template:Uploaded-files-access-restriction-info

*, user 1.5+
Template:Hl3 colspan="4"|<translate> Editing</translate>
applychangetags Template:Int user 1.25+
autocreateaccount Template:Int - <translate> a more limited version of createaccount</translate> — 1.27+
createaccount Template:Int - register / registration * 1.5+
createpage Template:Int - <translate> requires the <tvar|1>edit</> right</translate> *, user 1.6+
createtalk Template:Int - <translate> requires the <tvar|1>edit</> right</translate> *, user 1.6+
edit Template:Int *, user 1.5+
editsemiprotected Template:Int - <translate> without cascading protection</translate> autoconfirmed 1.22+
editprotected Template:Int - <translate> without cascading protection</translate> sysop 1.13+
move Template:Int - <translate> requires the <tvar|1>edit</> right</translate> user 1.5+
move-categorypages Template:Int - <translate> (requires the <tvar|1>move</> right)</translate> user 1.25+
move-rootuserpages Template:Int - <translate> requires the <tvar|1>move</> right</translate> user 1.14+
move-subpages Template:Int - <translate> requires the <tvar|1>move</> right</translate> user 1.13+
movefile Template:Int - <translate> requires the <tvar|1>move</> right and <tvar|AllowImageMoving>Template:Ll</> to be true</translate> user 1.14+
reupload Template:Int - <translate> requires the <tvar|1>upload</> right</translate> user 1.6+
reupload-own Template:Int - <translate> requires the <tvar|1>upload</> right (note that this is not needed if the group already has the <tvar|reupload>reupload</> right)</translate> — 1.11+
reupload-shared Template:Int - <translate> (if one is set up) with local files</translate> <translate> (requires the <tvar|1>upload</> right)</translate> user 1.6+
sendemail Template:Int user 1.16+
upload Template:Int - <translate> requires the <tvar|1>edit</> right</translate> user 1.5+
upload_by_url Template:Int - <translate> requires the <tvar|1>upload</> right</translate> — 1.8+
Template:Hl3 colspan="4"|<translate> Management</translate>
bigdelete Template:Int sysop 1.12+
block Template:Int - <translate> Block options include preventing editing and registering new accounts, and autoblocking other users on the same IP address</translate> sysop 1.5+
blockemail Template:Int - <translate> allows preventing use of the Special:Emailuser interface when blocking</translate> sysop 1.11+
browsearchive Template:Int - <translate> through Special:Undelete</translate> sysop 1.13+
changetags Template:Int - <translate> currently unused by extensions</translate> user 1.25+
delete Template:Int 1.5–1.11: <translate> allows the deletion or undeletion of pages.</translate>
1.12+: <translate> allows the deletion of pages.</translate> <translate> For undeletions, there is now the <tvar|1>'undelete'</> right, see below</translate> 		sysop 1.5+
deletedhistory Template:Int sysop 1.6+
deletedtext Template:Int sysop
deletelogentry Template:Int - <translate> allows deleting/undeleting information (action text, summary, user who made the action) of specific log entries (not available by default)</translate> — 1.20+
deleterevision Template:Int - <translate> allows deleting/undeleting information (revision text, edit summary, user who made the edit) of specific revisions</translate> <translate> Split into deleterevision and deletelogentry in 1.20 (not available by default)</translate> — 1.6+
editcontentmodel Template:Int — 1.23.7+
editinterface Template:Int - <translate> contains [[<tvar|man>Special:MyLanguage/Manual:Interface</>|interface messages]]</translate> sysop, interface-admin 1.5+
editmyoptions Template:Int * 1.22+
editmyprivateinfo Template:Int * 1.22+
editmyusercss Template:Int * 1.22+
editmyuserjs Template:Int * 1.22+
editmyuserjson Template:Int user 1.31+
editmywatchlist Template:Int * 1.22+
editsitecss Template:Int interface-admin 1.32+
editsitejs Template:Int interface-admin 1.32+
editsitejson Template:Int interface-admin 1.32+
editusercss Template:Int interface-admin 1.16+
edituserjs Template:Int interface-admin 1.16+
edituserjson Template:Int interface-admin 1.31+
hideuser Template:Int - <translate>

(not available by default)

Only users with 1000 edits or less can be suppressed by default.</translate> <translate> Use <tvar|HideUserContribLimit>Template:Wg</> to disable.</translate>

— 1.10+
markbotedits Template:Int - <translate> see [[<tvar|man>Special:MyLanguage/Manual:Administrators#Rollback</>|Manual:Administrators#Rollback]]</translate> sysop 1.12+
mergehistory Template:Int sysop 1.12+
pagelang Template:Int - <translate> <tvar|PageLanguageUseDB>Template:Ll</> must be true</translate> — 1.24+
patrol Template:Int - <translate> <tvar|UseRCPatrol>Template:Ll</> must be true</translate> sysop 1.5+
patrolmarks Template:Int — 1.16+
protect Template:Int sysop 1.5+
rollback Template:Int sysop 1.5+
suppressionlog Template:Int — 1.6+
suppressrevision Template:Int - <translate> Prior to 1.13 this right was named hiderevision (not available by default)</translate> — 1.6+
unblockself Template:Int - <translate> Without it, an administrator that has the capability to block cannot unblock themselves if blocked by another administrator</translate> sysop 1.17+
undelete Template:Int sysop 1.12+
userrights Template:Int - <translate> allows the assignment or removal of all* groups to any user.</translate>
<translate>
  • With <tvar|AddGroups>Template:Ll</> and <tvar|RemoveGroups>Template:Ll</> you can set the possibility to add/remove certain groups instead of all</translate>
 bureaucrat 1.5+
userrights-interwiki Template:Int — 1.12+
viewmyprivateinfo Template:Int * 1.22+
viewmywatchlist Template:Int * 1.22+
viewsuppressed Template:Int - <translate> i.e. a more narrow alternative to "suppressrevision" (not available by default)</translate> — 1.24+
Template:Hl3 colspan="4"|<translate> Administration</translate>
autopatrol Template:Int - <translate> <tvar|UseRCPatrol>Template:Ll</> must be true</translate> bot, sysop 1.9+
import Template:Int - <translate> “transwiki”</translate> sysop 1.5+
importupload Template:Int - <translate> This right was called 'importraw' in and before version 1.5</translate> sysop 1.5+
managechangetags Template:Int - <translate> currently unused by extensions</translate> sysop 1.25+
siteadmin Template:Int - <translate> which blocks all interactions with the web site except viewing.</translate> <translate> Disabled by default</translate> — 1.5+
unwatchedpages Template:Int - <translate> lists pages that no user has watchlisted</translate> sysop 1.6+
Template:Hl3 colspan="4"|<translate> Technical</translate>
apihighlimits Template:Int bot, sysop 1.12+
autoconfirmed Template:Int - <translate> used for the 'autoconfirmed' group, see the other table below for more information</translate> autoconfirmed, bot, sysop 1.6+
bot Template:Int - <translate> can optionally be viewed</translate> bot 1.5+
ipblock-exempt Template:Int sysop 1.9+
minoredit Template:Int user 1.6+
nominornewtalk Template:Int - <translate> requires minor edit right</translate> bot 1.9+
noratelimit Template:Int - <translate> not affected by [[<tvar|man>Special:MyLanguage/Manual:$wgRateLimits</>|rate limits]] (prior to the introduction of this right, the configuration variable <tvar|RateLimitsExcludedGroups>Template:Ll</> was used for this purpose)</translate> sysop, bureaucrat 1.13+
purge Template:Int - <translate> [[<tvar|man>Special:MyLanguage/Manual:URL</>|URL parameter]] "&action=purge"</translate> user 1.10+
suppressredirect Template:Int bot, sysop 1.12+
writeapi Template:Int *, user, bot 1.13+

Template:Note

<translate>

List of groups

The following groups are available in the latest version of MediaWiki.</translate> <translate> If you are using an older version then some of these may not be implemented. </translate>

Template:Hl2 | <translate> Group</translate> Template:Hl2 | <translate> Description</translate> Template:Hl2 | <translate> Default rights</translate> Template:Hl2 | <translate> Versions</translate>
* <translate> all users (including anonymous).</translate> createaccount, createpage, createtalk, edit, editmyoptions, editmyprivateinfo, editmyusercss, editmyuserjs, editmywatchlist, read, viewmyprivateinfo, viewmywatchlist, writeapi 1.5+
user <translate> registered accounts.</translate> applychangetags, changetags, createpage, createtalk, edit, minoredit, move, move-categorypages, move-rootuserpages, move-subpages, movefile, purge, read, reupload, reupload-shared, sendemail, upload, writeapi
autoconfirmed AutoConfirmAge>Template:Ll</> and having at least as many edits as <tvar|AutoConfirmCount>Template:Ll</>.</translate> autoconfirmed, editsemiprotected 1.6+
bot <translate> accounts with the bot right (intended for automated scripts).</translate> autoconfirmed, autopatrol, apihighlimits, bot, editsemiprotected, nominornewtalk, suppressredirect, writeapi 1.5+
sysop <translate> users who by default can delete and restore pages, block and unblock users, et cetera.</translate> apihighlimits, autoconfirmed, autopatrol, bigdelete, block, blockemail, browsearchive, createaccount, delete, deletedhistory, deletedtext, editinterface, editprotected, editsemiprotected, editusercss, edituserjs, import, importupload, ipblock-exempt, managechangetags, markbotedits, mergehistory, move, move-categorypages, move-rootuserpages, move-subpages, movefile, noratelimit, patrol, protect, proxyunbannable, reupload, reupload-shared, rollback, suppressredirect, unblockself, undelete, unwatchedpages, upload, upload_by_url 1.5+
bureaucrat <translate> users who by default can change other users' rights.</translate> noratelimit, userrights 1.5+

<translate> From MW 1.12, you can create your own groups into which users are automatically promoted (as with autoconfirmed and emailconfirmed) using <tvar|AutoPromote>Template:Ll</>.</translate> <translate> You can even create any custom group by just assigning rights to them.

Default rights

The default rights are defined in <tvar|DefaultSettings>Template:Ll</>.</translate> <translate>

<translate>

<translate>

  • Additional rights: you should be able to list all the permissions available on your wiki by running <tvar|getAllRights>User::getAllRights()</>.

</translate>

Template:Anchor <translate>

Adding new rights

</translate> <translate> Information for coders only follows.</translate>

<translate> If you're adding a new right in core, for instance to [[<tvar|man>Special:MyLanguage/Manual:Special pages</>|control a new special page]], you are required to add it to the list of available rights in <tvar|User>Template:Ll</>, $mCoreRights ([<tvar|url>https://gerrit.wikimedia.org/r/#/c/135312/73/includes/User.php</> example]).</translate> <translate> If you're {{<tvar|man>ll|Manual:Developing extensions</>|doing so in an extension}}, you instead need to use <tvar|AvailableRights>Template:Ll</>.

You probably also want to assign it to some user group by editing <tvar|GroupPermissions>Template:Ll</> described above.

If you want this right to be accessible to external applications by <tvar|OAuth>Template:Ll</> or by [[<tvar|botpasswords>Manual:Bot passwords</>|bot passwords]], then you will need to add it to a grant by editing <tvar|GrantPermissions>Template:Ll</>.</translate>

<source lang="php"> // create ninja-powers right $wgAvailableRights[] = 'ninja-powers';

//add ninja-powers to the ninja-group $wgGroupPermissions['ninja']['ninja-powers'] = true;

//add ninja-powers to the 'basic' grant so we can use our ninja powers over an API request $wgGrantPermissions['basic']['ninja-powers'] = true; </source>

Security

As any open-source software, the Wiki is vulnerable to external attacks:

Getting started

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