MediaWiki REL1_33
RevisionDeleter.php
Go to the documentation of this file.
1<?php
31 private static $allowedTypes = [
32 'revision' => RevDelRevisionList::class,
33 'archive' => RevDelArchiveList::class,
34 'oldimage' => RevDelFileList::class,
35 'filearchive' => RevDelArchivedFileList::class,
36 'logging' => RevDelLogList::class,
37 ];
38
40 private static $deprecatedTypeMap = [
41 'oldid' => 'revision',
42 'artimestamp' => 'archive',
43 'oldimage' => 'oldimage',
44 'fileid' => 'filearchive',
45 'logid' => 'logging',
46 ];
47
54 public static function getTypes() {
55 return array_keys( self::$allowedTypes );
56 }
57
65 public static function getCanonicalTypeName( $typeName ) {
66 if ( isset( self::$deprecatedTypeMap[$typeName] ) ) {
67 $typeName = self::$deprecatedTypeMap[$typeName];
68 }
69 return isset( self::$allowedTypes[$typeName] ) ? $typeName : null;
70 }
71
83 public static function createList( $typeName, IContextSource $context, Title $title, array $ids ) {
84 $typeName = self::getCanonicalTypeName( $typeName );
85 if ( !$typeName ) {
86 throw new MWException( __METHOD__ . ": Unknown RevDel type '$typeName'" );
87 }
88 $class = self::$allowedTypes[$typeName];
89 return new $class( $context, $title, $ids );
90 }
91
103 protected static function checkItem( $desc, $field, $diff, $new, &$arr ) {
104 if ( $diff & $field ) {
105 $arr[( $new & $field ) ? 0 : 1][] = $desc;
106 }
107 }
108
127 public static function getChanges( $n, $o ) {
128 $diff = $n ^ $o;
129 $ret = [ 0 => [], 1 => [], 2 => [] ];
130 // Build bitfield changes in language
131 self::checkItem( 'revdelete-content',
132 Revision::DELETED_TEXT, $diff, $n, $ret );
133 self::checkItem( 'revdelete-summary',
134 Revision::DELETED_COMMENT, $diff, $n, $ret );
135 self::checkItem( 'revdelete-uname',
136 Revision::DELETED_USER, $diff, $n, $ret );
137 // Restriction application to sysops
138 if ( $diff & Revision::DELETED_RESTRICTED ) {
139 if ( $n & Revision::DELETED_RESTRICTED ) {
140 $ret[2][] = 'revdelete-restricted';
141 } else {
142 $ret[2][] = 'revdelete-unrestricted';
143 }
144 }
145 return $ret;
146 }
147
154 public static function getRelationType( $typeName ) {
155 $typeName = self::getCanonicalTypeName( $typeName );
156 if ( !$typeName ) {
157 return null;
158 }
159 return call_user_func( [ self::$allowedTypes[$typeName], 'getRelationType' ] );
160 }
161
168 public static function getRestriction( $typeName ) {
169 $typeName = self::getCanonicalTypeName( $typeName );
170 if ( !$typeName ) {
171 return null;
172 }
173 return call_user_func( [ self::$allowedTypes[$typeName], 'getRestriction' ] );
174 }
175
182 public static function getRevdelConstant( $typeName ) {
183 $typeName = self::getCanonicalTypeName( $typeName );
184 if ( !$typeName ) {
185 return null;
186 }
187 return call_user_func( [ self::$allowedTypes[$typeName], 'getRevdelConstant' ] );
188 }
189
198 public static function suggestTarget( $typeName, $target, array $ids ) {
199 $typeName = self::getCanonicalTypeName( $typeName );
200 if ( !$typeName ) {
201 return $target;
202 }
203 return call_user_func( [ self::$allowedTypes[$typeName], 'suggestTarget' ], $target, $ids );
204 }
205
215 public static function checkRevisionExistence( $title, $revid ) {
217 $exists = $dbr->selectField( 'revision', '1',
218 [ 'rev_id' => $revid ], __METHOD__ );
219
220 if ( $exists ) {
221 return true;
222 }
223
224 $timestamp = $dbr->selectField( 'archive', 'ar_timestamp',
225 [ 'ar_namespace' => $title->getNamespace(),
226 'ar_title' => $title->getDBkey(),
227 'ar_rev_id' => $revid ], __METHOD__ );
228
229 return $timestamp;
230 }
231
239 public static function extractBitfield( array $bitPars, $oldfield ) {
240 // Build the actual new rev_deleted bitfield
241 $newBits = 0;
242 foreach ( $bitPars as $const => $val ) {
243 if ( $val == 1 ) {
244 $newBits |= $const; // $const is the *_deleted const
245 } elseif ( $val == -1 ) {
246 $newBits |= ( $oldfield & $const ); // use existing
247 }
248 }
249 return $newBits;
250 }
251}
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
MediaWiki exception.
General controller for RevDel, used by both SpecialRevisiondelete and ApiRevisionDelete.
static getCanonicalTypeName( $typeName)
Gets the canonical type name, if any.
static createList( $typeName, IContextSource $context, Title $title, array $ids)
Instantiate the appropriate list class for a given list of IDs.
static getTypes()
Lists the valid possible types for revision deletion.
static checkItem( $desc, $field, $diff, $new, &$arr)
Checks for a change in the bitfield for a certain option and updates the provided array accordingly.
static getRelationType( $typeName)
Get DB field name for URL param... Future code for other things may also track other types of revisio...
static getChanges( $n, $o)
Gets an array of message keys describing the changes made to the visibility of the revision.
static suggestTarget( $typeName, $target, array $ids)
Suggest a target for the revision deletion.
static $allowedTypes
List of known revdel types, with their corresponding list classes.
static extractBitfield(array $bitPars, $oldfield)
Put together a rev_deleted bitfield.
static getRevdelConstant( $typeName)
Get the revision deletion constant for the RevDel type.
static getRestriction( $typeName)
Get the user right required for the RevDel type.
static checkRevisionExistence( $title, $revid)
Checks if a revision still exists in the revision table.
static $deprecatedTypeMap
Type map to support old log entries.
const DELETED_USER
Definition Revision.php:48
const DELETED_TEXT
Definition Revision.php:46
const DELETED_RESTRICTED
Definition Revision.php:49
const DELETED_COMMENT
Definition Revision.php:47
Represents a title within MediaWiki.
Definition Title.php:40
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Definition hooks.txt:2848
namespace and then decline to actually register it file or subcat img or subcat $title
Definition hooks.txt:955
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Definition hooks.txt:2003
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
Interface for objects which can provide a MediaWiki context on request.
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const DB_REPLICA
Definition defines.php:25