MediaWiki REL1_33
SpecialChangeContentModel.php
Go to the documentation of this file.
1<?php
2
4
5 public function __construct() {
6 parent::__construct( 'ChangeContentModel', 'editcontentmodel' );
7 }
8
9 public function doesWrites() {
10 return true;
11 }
12
16 private $title;
17
23 private $oldRevision;
24
25 protected function setParameter( $par ) {
26 $par = $this->getRequest()->getVal( 'pagetitle', $par );
27 $title = Title::newFromText( $par );
28 if ( $title ) {
29 $this->title = $title;
30 $this->par = $title->getPrefixedText();
31 } else {
32 $this->par = '';
33 }
34 }
35
36 protected function postText() {
37 $text = '';
38 if ( $this->title ) {
39 $contentModelLogPage = new LogPage( 'contentmodel' );
40 $text = Xml::element( 'h2', null, $contentModelLogPage->getName()->text() );
41 $out = '';
42 LogEventsList::showLogExtract( $out, 'contentmodel', $this->title );
43 $text .= $out;
44 }
45 return $text;
46 }
47
48 protected function getDisplayFormat() {
49 return 'ooui';
50 }
51
52 protected function alterForm( HTMLForm $form ) {
53 if ( !$this->title ) {
54 $form->setMethod( 'GET' );
55 }
56
57 $this->addHelpLink( 'Help:ChangeContentModel' );
58
59 // T120576
60 $form->setSubmitTextMsg( 'changecontentmodel-submit' );
61 }
62
63 public function validateTitle( $title ) {
64 if ( !$title ) {
65 // No form input yet
66 return true;
67 }
68
69 // Already validated by HTMLForm, but if not, throw
70 // and exception instead of a fatal
71 $titleObj = Title::newFromTextThrow( $title );
72
73 $this->oldRevision = Revision::newFromTitle( $titleObj ) ?: false;
74
75 if ( $this->oldRevision ) {
76 $oldContent = $this->oldRevision->getContent();
77 if ( !$oldContent->getContentHandler()->supportsDirectEditing() ) {
78 return $this->msg( 'changecontentmodel-nodirectediting' )
79 ->params( ContentHandler::getLocalizedName( $oldContent->getModel() ) )
80 ->escaped();
81 }
82 }
83
84 return true;
85 }
86
87 protected function getFormFields() {
88 $fields = [
89 'pagetitle' => [
90 'type' => 'title',
91 'creatable' => true,
92 'name' => 'pagetitle',
93 'default' => $this->par,
94 'label-message' => 'changecontentmodel-title-label',
95 'validation-callback' => [ $this, 'validateTitle' ],
96 ],
97 ];
98 if ( $this->title ) {
99 $options = $this->getOptionsForTitle( $this->title );
100 if ( empty( $options ) ) {
101 throw new ErrorPageError(
102 'changecontentmodel-emptymodels-title',
103 'changecontentmodel-emptymodels-text',
104 $this->title->getPrefixedText()
105 );
106 }
107 $fields['pagetitle']['readonly'] = true;
108 $fields += [
109 'model' => [
110 'type' => 'select',
111 'name' => 'model',
112 'options' => $options,
113 'label-message' => 'changecontentmodel-model-label'
114 ],
115 'reason' => [
116 'type' => 'text',
117 'name' => 'reason',
118 'validation-callback' => function ( $reason ) {
119 $match = EditPage::matchSummarySpamRegex( $reason );
120 if ( $match ) {
121 return $this->msg( 'spamprotectionmatch', $match )->parse();
122 }
123
124 return true;
125 },
126 'label-message' => 'changecontentmodel-reason-label',
127 ],
128 ];
129 }
130
131 return $fields;
132 }
133
134 private function getOptionsForTitle( Title $title = null ) {
135 $models = ContentHandler::getContentModels();
136 $options = [];
137 foreach ( $models as $model ) {
138 $handler = ContentHandler::getForModelID( $model );
139 if ( !$handler->supportsDirectEditing() ) {
140 continue;
141 }
142 if ( $title ) {
143 if ( $title->getContentModel() === $model ) {
144 continue;
145 }
146 if ( !$handler->canBeUsedOn( $title ) ) {
147 continue;
148 }
149 }
150 $options[ContentHandler::getLocalizedName( $model )] = $model;
151 }
152
153 return $options;
154 }
155
156 public function onSubmit( array $data ) {
157 if ( $data['pagetitle'] === '' ) {
158 // Initial form view of special page, pass
159 return false;
160 }
161
162 // At this point, it has to be a POST request. This is enforced by HTMLForm,
163 // but lets be safe verify that.
164 if ( !$this->getRequest()->wasPosted() ) {
165 throw new RuntimeException( "Form submission was not POSTed" );
166 }
167
168 $this->title = Title::newFromText( $data['pagetitle'] );
169 $titleWithNewContentModel = clone $this->title;
170 $titleWithNewContentModel->setContentModel( $data['model'] );
171 $user = $this->getUser();
172 // Check permissions and make sure the user has permission to:
173 $errors = wfMergeErrorArrays(
174 // edit the contentmodel of the page
175 $this->title->getUserPermissionsErrors( 'editcontentmodel', $user ),
176 // edit the page under the old content model
177 $this->title->getUserPermissionsErrors( 'edit', $user ),
178 // edit the contentmodel under the new content model
179 $titleWithNewContentModel->getUserPermissionsErrors( 'editcontentmodel', $user ),
180 // edit the page under the new content model
181 $titleWithNewContentModel->getUserPermissionsErrors( 'edit', $user )
182 );
183 if ( $errors ) {
184 $out = $this->getOutput();
185 $wikitext = $out->formatPermissionsErrorMessage( $errors );
186 // Hack to get our wikitext parsed
187 return Status::newFatal( new RawMessage( '$1', [ $wikitext ] ) );
188 }
189
190 $page = WikiPage::factory( $this->title );
191 if ( $this->oldRevision === null ) {
192 $this->oldRevision = $page->getRevision() ?: false;
193 }
194 $oldModel = $this->title->getContentModel();
195 if ( $this->oldRevision ) {
196 $oldContent = $this->oldRevision->getContent();
197 try {
198 $newContent = ContentHandler::makeContent(
199 $oldContent->serialize(), $this->title, $data['model']
200 );
201 } catch ( MWException $e ) {
202 return Status::newFatal(
203 $this->msg( 'changecontentmodel-cannot-convert' )
204 ->params(
205 $this->title->getPrefixedText(),
206 ContentHandler::getLocalizedName( $data['model'] )
207 )
208 );
209 }
210 } else {
211 // Page doesn't exist, create an empty content object
212 $newContent = ContentHandler::getForModelID( $data['model'] )->makeEmptyContent();
213 }
214
215 // All other checks have passed, let's check rate limits
216 if ( $user->pingLimiter( 'editcontentmodel' ) ) {
217 throw new ThrottledError();
218 }
219
220 $flags = $this->oldRevision ? EDIT_UPDATE : EDIT_NEW;
221 $flags |= EDIT_INTERNAL;
222 if ( $user->isAllowed( 'bot' ) ) {
223 $flags |= EDIT_FORCE_BOT;
224 }
225
226 $log = new ManualLogEntry( 'contentmodel', $this->oldRevision ? 'change' : 'new' );
227 $log->setPerformer( $user );
228 $log->setTarget( $this->title );
229 $log->setComment( $data['reason'] );
230 $log->setParameters( [
231 '4::oldmodel' => $oldModel,
232 '5::newmodel' => $data['model']
233 ] );
234
235 $formatter = LogFormatter::newFromEntry( $log );
236 $formatter->setContext( RequestContext::newExtraneousContext( $this->title ) );
237 $reason = $formatter->getPlainActionText();
238 if ( $data['reason'] !== '' ) {
239 $reason .= $this->msg( 'colon-separator' )->inContentLanguage()->text() . $data['reason'];
240 }
241
242 // Run edit filters
243 $derivativeContext = new DerivativeContext( $this->getContext() );
244 $derivativeContext->setTitle( $this->title );
245 $derivativeContext->setWikiPage( $page );
246 $status = new Status();
247 if ( !Hooks::run( 'EditFilterMergedContent',
248 [ $derivativeContext, $newContent, $status, $reason,
249 $user, false ] )
250 ) {
251 if ( $status->isGood() ) {
252 // TODO: extensions should really specify an error message
253 $status->fatal( 'hookaborted' );
254 }
255 return $status;
256 }
257
258 $status = $page->doEditContent(
259 $newContent,
260 $reason,
261 $flags,
262 $this->oldRevision ? $this->oldRevision->getId() : false,
263 $user
264 );
265 if ( !$status->isOK() ) {
266 return $status;
267 }
268
269 $logid = $log->insert();
270 $log->publish( $logid );
271
272 return $status;
273 }
274
275 public function onSuccess() {
276 $out = $this->getOutput();
277 $out->setPageTitle( $this->msg( 'changecontentmodel-success-title' ) );
278 $out->addWikiMsg( 'changecontentmodel-success-text', $this->title );
279 }
280
289 public function prefixSearchSubpages( $search, $limit, $offset ) {
290 return $this->prefixSearchString( $search, $limit, $offset );
291 }
292
293 protected function getGroupName() {
294 return 'pagetools';
295 }
296}
wfMergeErrorArrays(... $args)
Merge arrays in the style of getUserPermissionsErrors, with duplicate removal e.g.
An IContextSource implementation which will inherit context from another source but allow individual ...
static matchSummarySpamRegex( $text)
Check given input text against $wgSummarySpamRegex, and return the text of the first match.
An error page which can definitely be safely rendered using the OutputPage.
Special page which uses an HTMLForm to handle processing.
string null $par
The sub-page of the special page.
Object handling generic submission, CSRF protection, layout and other logic for UI forms.
Definition HTMLForm.php:133
setMethod( $method='post')
Set the method used to submit the form.
setSubmitTextMsg( $msg)
Set the text for the submit button to a message.
static showLogExtract(&$out, $types=[], $page='', $user='', $param=[])
Show log extract.
static newFromEntry(LogEntry $entry)
Constructs a new formatter suitable for given entry.
Class to simplify the use of log pages.
Definition LogPage.php:33
MediaWiki exception.
Class for creating new log entries and inserting them into the database.
Definition LogEntry.php:441
setPerformer(UserIdentity $performer)
Set the user that performed the action being logged.
Definition LogEntry.php:536
Variant of the Message class.
static newFromTitle(LinkTarget $linkTarget, $id=0, $flags=0)
Load either the current, or a specified, revision that's attached to a given link target.
Definition Revision.php:137
Revision bool null $oldRevision
A Revision object, false if no revision exists, null if not loaded yet.
setParameter( $par)
Maybe do something interesting with the subpage parameter.
alterForm(HTMLForm $form)
Play with the HTMLForm if you need to more substantially.
prefixSearchSubpages( $search, $limit, $offset)
Return an array of subpages beginning with $search that this special page will accept.
getGroupName()
Under which header this special page is listed in Special:SpecialPages See messages 'specialpages-gro...
getFormFields()
Get an HTMLForm descriptor array.
postText()
Add post-text to the form.
getDisplayFormat()
Get display format for the form.
doesWrites()
Indicates whether this special page may perform database writes.
onSubmit(array $data)
Process the form on POST submission.
onSuccess()
Do something exciting on successful processing of the form, most likely to show a confirmation messag...
getOutput()
Get the OutputPage being used for this instance.
getUser()
Shortcut to get the User executing this instance.
getContext()
Gets the context this SpecialPage is executed in.
msg( $key)
Wrapper around wfMessage that sets the current context.
getRequest()
Get the WebRequest being used for this instance.
addHelpLink( $to, $overrideBaseUrl=false)
Adds help link with an icon via page indicators.
prefixSearchString( $search, $limit, $offset)
Perform a regular substring search for prefixSearchSubpages.
Generic operation result class Has warning/error list, boolean status and arbitrary value.
Definition Status.php:40
Show an error when the user hits a rate limit.
Represents a title within MediaWiki.
Definition Title.php:40
getContentModel( $flags=0)
Get the page's content model id, see the CONTENT_MODEL_XXX constants.
Definition Title.php:1006
setContentModel( $model)
Set a proposed content model for the page for permissions checking.
Definition Title.php:1044
getPrefixedText()
Get the prefixed title with spaces.
Definition Title.php:1660
This document is intended to provide useful advice for parties seeking to redistribute MediaWiki to end users It s targeted particularly at maintainers for Linux since it s been observed that distribution packages of MediaWiki often break We ve consistently had to recommend that users seeking support use official tarballs instead of their distribution s and this often solves whatever problem the user is having It would be nice if this could such as
$data
Utility to generate mapping file used in mw.Title (phpCharToUpper.json)
const EDIT_FORCE_BOT
Definition Defines.php:165
const EDIT_INTERNAL
Definition Defines.php:168
const EDIT_UPDATE
Definition Defines.php:162
const EDIT_NEW
Definition Defines.php:161
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not it can be in the form of< username >< more info > e g for bot passwords intended to be added to log contexts Fields it might only if the login was with a bot password it is not rendered in wiki pages or galleries in category pages allow injecting custom HTML after the section Any uses of the hook need to handle escaping see BaseTemplate::getToolbox and BaseTemplate::makeListItem for details on the format of individual items inside of this array or by returning and letting standard HTTP rendering take place modifiable or by returning false and taking over the output $out
Definition hooks.txt:855
this hook is for auditing only or null if authentication failed before getting that far or null if we can t even determine that When $user is not it can be in the form of< username >< more info > e g for bot passwords intended to be added to log contexts Fields it might only if the login was with a bot password it is not rendered in wiki pages or galleries in category pages allow injecting custom HTML after the section Any uses of the hook need to handle escaping see BaseTemplate::getToolbox and BaseTemplate::makeListItem for details on the format of individual items inside of this array or by returning and letting standard HTTP rendering take place modifiable or by returning false and taking over the output modifiable modifiable after all normalizations have been except for the $wgMaxImageArea check set to true or false to override the $wgMaxImageArea check result gives extension the possibility to transform it themselves $handler
Definition hooks.txt:894
Status::newGood()` to allow deletion, and then `return false` from the hook function. Ensure you consume the 'ChangeTagAfterDelete' hook to carry out custom deletion actions. $tag:name of the tag $user:user initiating the action & $status:Status object. See above. 'ChangeTagsListActive':Allows you to nominate which of the tags your extension uses are in active use. & $tags:list of all active tags. Append to this array. 'ChangeTagsAfterUpdateTags':Called after tags have been updated with the ChangeTags::updateTags function. Params:$addedTags:tags effectively added in the update $removedTags:tags effectively removed in the update $prevTags:tags that were present prior to the update $rc_id:recentchanges table id $rev_id:revision table id $log_id:logging table id $params:tag params $rc:RecentChange being tagged when the tagging accompanies the action, or null $user:User who performed the tagging when the tagging is subsequent to the action, or null 'ChangeTagsAllowedAdd':Called when checking if a user can add tags to a change. & $allowedTags:List of all the tags the user is allowed to add. Any tags the user wants to add( $addTags) that are not in this array will cause it to fail. You may add or remove tags to this array as required. $addTags:List of tags user intends to add. $user:User who is adding the tags. 'ChangeUserGroups':Called before user groups are changed. $performer:The User who will perform the change $user:The User whose groups will be changed & $add:The groups that will be added & $remove:The groups that will be removed 'Collation::factory':Called if $wgCategoryCollation is an unknown collation. $collationName:Name of the collation in question & $collationObject:Null. Replace with a subclass of the Collation class that implements the collation given in $collationName. 'ConfirmEmailComplete':Called after a user 's email has been confirmed successfully. $user:user(object) whose email is being confirmed 'ContentAlterParserOutput':Modify parser output for a given content object. Called by Content::getParserOutput after parsing has finished. Can be used for changes that depend on the result of the parsing but have to be done before LinksUpdate is called(such as adding tracking categories based on the rendered HTML). $content:The Content to render $title:Title of the page, as context $parserOutput:ParserOutput to manipulate 'ContentGetParserOutput':Customize parser output for a given content object, called by AbstractContent::getParserOutput. May be used to override the normal model-specific rendering of page content. $content:The Content to render $title:Title of the page, as context $revId:The revision ID, as context $options:ParserOptions for rendering. To avoid confusing the parser cache, the output can only depend on parameters provided to this hook function, not on global state. $generateHtml:boolean, indicating whether full HTML should be generated. If false, generation of HTML may be skipped, but other information should still be present in the ParserOutput object. & $output:ParserOutput, to manipulate or replace 'ContentHandlerDefaultModelFor':Called when the default content model is determined for a given title. May be used to assign a different model for that title. $title:the Title in question & $model:the model name. Use with CONTENT_MODEL_XXX constants. 'ContentHandlerForModelID':Called when a ContentHandler is requested for a given content model name, but no entry for that model exists in $wgContentHandlers. Note:if your extension implements additional models via this hook, please use GetContentModels hook to make them known to core. $modeName:the requested content model name & $handler:set this to a ContentHandler object, if desired. 'ContentModelCanBeUsedOn':Called to determine whether that content model can be used on a given page. This is especially useful to prevent some content models to be used in some special location. $contentModel:ID of the content model in question $title:the Title in question. & $ok:Output parameter, whether it is OK to use $contentModel on $title. Handler functions that modify $ok should generally return false to prevent further hooks from further modifying $ok. 'ContribsPager::getQueryInfo':Before the contributions query is about to run & $pager:Pager object for contributions & $queryInfo:The query for the contribs Pager 'ContribsPager::reallyDoQuery':Called before really executing the query for My Contributions & $data:an array of results of all contribs queries $pager:The ContribsPager object hooked into $offset:Index offset, inclusive $limit:Exact query limit $descending:Query direction, false for ascending, true for descending 'ContributionsLineEnding':Called before a contributions HTML line is finished $page:SpecialPage object for contributions & $ret:the HTML line $row:the DB row for this line & $classes:the classes to add to the surrounding< li > & $attribs:associative array of other HTML attributes for the< li > element. Currently only data attributes reserved to MediaWiki are allowed(see Sanitizer::isReservedDataAttribute). 'ContributionsToolLinks':Change tool links above Special:Contributions $id:User identifier $title:User page title & $tools:Array of tool links $specialPage:SpecialPage instance for context and services. Can be either SpecialContributions or DeletedContributionsPage. Extensions should type hint against a generic SpecialPage though. 'ConvertContent':Called by AbstractContent::convert when a conversion to another content model is requested. Handler functions that modify $result should generally return false to disable further attempts at conversion. $content:The Content object to be converted. $toModel:The ID of the content model to convert to. $lossy:boolean indicating whether lossy conversion is allowed. & $result:Output parameter, in case the handler function wants to provide a converted Content object. Note that $result->getContentModel() must return $toModel. 'ContentSecurityPolicyDefaultSource':Modify the allowed CSP load sources. This affects all directives except for the script directive. If you want to add a script source, see ContentSecurityPolicyScriptSource hook. & $defaultSrc:Array of Content-Security-Policy allowed sources $policyConfig:Current configuration for the Content-Security-Policy header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'ContentSecurityPolicyDirectives':Modify the content security policy directives. Use this only if ContentSecurityPolicyDefaultSource and ContentSecurityPolicyScriptSource do not meet your needs. & $directives:Array of CSP directives $policyConfig:Current configuration for the CSP header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'ContentSecurityPolicyScriptSource':Modify the allowed CSP script sources. Note that you also have to use ContentSecurityPolicyDefaultSource if you want non-script sources to be loaded from whatever you add. & $scriptSrc:Array of CSP directives $policyConfig:Current configuration for the CSP header $mode:ContentSecurityPolicy::REPORT_ONLY_MODE or ContentSecurityPolicy::FULL_MODE depending on type of header 'CustomEditor':When invoking the page editor Return true to allow the normal editor to be used, or false if implementing a custom editor, e.g. for a special namespace, etc. $article:Article being edited $user:User performing the edit 'DatabaseOraclePostInit':Called after initialising an Oracle database $db:the DatabaseOracle object 'DeletedContribsPager::reallyDoQuery':Called before really executing the query for Special:DeletedContributions Similar to ContribsPager::reallyDoQuery & $data:an array of results of all contribs queries $pager:The DeletedContribsPager object hooked into $offset:Index offset, inclusive $limit:Exact query limit $descending:Query direction, false for ascending, true for descending 'DeletedContributionsLineEnding':Called before a DeletedContributions HTML line is finished. Similar to ContributionsLineEnding $page:SpecialPage object for DeletedContributions & $ret:the HTML line $row:the DB row for this line & $classes:the classes to add to the surrounding< li > & $attribs:associative array of other HTML attributes for the< li > element. Currently only data attributes reserved to MediaWiki are allowed(see Sanitizer::isReservedDataAttribute). 'DeleteUnknownPreferences':Called by the cleanupPreferences.php maintenance script to build a WHERE clause with which to delete preferences that are not known about. This hook is used by extensions that have dynamically-named preferences that should not be deleted in the usual cleanup process. For example, the Gadgets extension creates preferences prefixed with 'gadget-', and so anything with that prefix is excluded from the deletion. &where:An array that will be passed as the $cond parameter to IDatabase::select() to determine what will be deleted from the user_properties table. $db:The IDatabase object, useful for accessing $db->buildLike() etc. 'DifferenceEngineAfterLoadNewText':called in DifferenceEngine::loadNewText() after the new revision 's content has been loaded into the class member variable $differenceEngine->mNewContent but before returning true from this function. $differenceEngine:DifferenceEngine object 'DifferenceEngineLoadTextAfterNewContentIsLoaded':called in DifferenceEngine::loadText() after the new revision 's content has been loaded into the class member variable $differenceEngine->mNewContent but before checking if the variable 's value is null. This hook can be used to inject content into said class member variable. $differenceEngine:DifferenceEngine object 'DifferenceEngineMarkPatrolledLink':Allows extensions to change the "mark as patrolled" link which is shown both on the diff header as well as on the bottom of a page, usually wrapped in a span element which has class="patrollink". $differenceEngine:DifferenceEngine object & $markAsPatrolledLink:The "mark as patrolled" link HTML(string) $rcid:Recent change ID(rc_id) for this change(int) 'DifferenceEngineMarkPatrolledRCID':Allows extensions to possibly change the rcid parameter. For example the rcid might be set to zero due to the user being the same as the performer of the change but an extension might still want to show it under certain conditions. & $rcid:rc_id(int) of the change or 0 $differenceEngine:DifferenceEngine object $change:RecentChange object $user:User object representing the current user 'DifferenceEngineNewHeader':Allows extensions to change the $newHeader variable, which contains information about the new revision, such as the revision 's author, whether the revision was marked as a minor edit or not, etc. $differenceEngine:DifferenceEngine object & $newHeader:The string containing the various #mw-diff-otitle[1-5] divs, which include things like revision author info, revision comment, RevisionDelete link and more $formattedRevisionTools:Array containing revision tools, some of which may have been injected with the DiffRevisionTools hook $nextlink:String containing the link to the next revision(if any) $status
Definition hooks.txt:1266
null means default in associative array with keys and values unescaped Should be merged with default with a value of false meaning to suppress the attribute in associative array with keys and values unescaped & $options
Definition hooks.txt:1999
return true to allow those checks to and false if checking is done & $user
Definition hooks.txt:1510
returning false will NOT prevent logging $e
Definition hooks.txt:2175
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition injection.txt:37
The wiki should then use memcached to cache various data To use multiple just add more items to the array To increase the weight of a make its entry a array("192.168.0.1:11211", 2))
title