MediaWiki REL1_27
RevisionDeleteUser.php
Go to the documentation of this file.
1<?php
33
42 private static function setUsernameBitfields( $name, $userId, $op, $dbw ) {
43 if ( !$userId || ( $op !== '|' && $op !== '&' ) ) {
44 return false; // sanity check
45 }
46 if ( !$dbw instanceof IDatabase ) {
47 $dbw = wfGetDB( DB_MASTER );
48 }
49
50 # To suppress, we OR the current bitfields with Revision::DELETED_USER
51 # to put a 1 in the username *_deleted bit. To unsuppress we AND the
52 # current bitfields with the inverse of Revision::DELETED_USER. The
53 # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
54 # The same goes for the sysop-restricted *_deleted bit.
57 if ( $op == '&' ) {
58 $delUser = $dbw->bitNot( $delUser );
59 $delAction = $dbw->bitNot( $delAction );
60 }
61
62 # Normalize user name
63 $userTitle = Title::makeTitleSafe( NS_USER, $name );
64 $userDbKey = $userTitle->getDBkey();
65
66 # Hide name from live edits
67 $dbw->update(
68 'revision',
69 [ self::buildSetBitDeletedField( 'rev_deleted', $op, $delUser, $dbw ) ],
70 [ 'rev_user' => $userId ],
71 __METHOD__ );
72
73 # Hide name from deleted edits
74 $dbw->update(
75 'archive',
76 [ self::buildSetBitDeletedField( 'ar_deleted', $op, $delUser, $dbw ) ],
77 [ 'ar_user_text' => $name ],
78 __METHOD__
79 );
80
81 # Hide name from logs
82 $dbw->update(
83 'logging',
84 [ self::buildSetBitDeletedField( 'log_deleted', $op, $delUser, $dbw ) ],
85 [ 'log_user' => $userId, 'log_type != ' . $dbw->addQuotes( 'suppress' ) ],
86 __METHOD__
87 );
88 $dbw->update(
89 'logging',
90 [ self::buildSetBitDeletedField( 'log_deleted', $op, $delAction, $dbw ) ],
91 [ 'log_namespace' => NS_USER, 'log_title' => $userDbKey,
92 'log_type != ' . $dbw->addQuotes( 'suppress' ) ],
93 __METHOD__
94 );
95
96 # Hide name from RC
97 $dbw->update(
98 'recentchanges',
99 [ self::buildSetBitDeletedField( 'rc_deleted', $op, $delUser, $dbw ) ],
100 [ 'rc_user_text' => $name ],
101 __METHOD__
102 );
103 $dbw->update(
104 'recentchanges',
105 [ self::buildSetBitDeletedField( 'rc_deleted', $op, $delAction, $dbw ) ],
106 [ 'rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0' ],
107 __METHOD__
108 );
109
110 # Hide name from live images
111 $dbw->update(
112 'oldimage',
113 [ self::buildSetBitDeletedField( 'oi_deleted', $op, $delUser, $dbw ) ],
114 [ 'oi_user_text' => $name ],
115 __METHOD__
116 );
117
118 # Hide name from deleted images
119 $dbw->update(
120 'filearchive',
121 [ self::buildSetBitDeletedField( 'fa_deleted', $op, $delUser, $dbw ) ],
122 [ 'fa_user_text' => $name ],
123 __METHOD__
124 );
125 # Done!
126 return true;
127 }
128
129 private static function buildSetBitDeletedField( $field, $op, $value, $dbw ) {
130 return $field . ' = ' . ( $op === '&'
131 ? $dbw->bitAnd( $field, $value )
132 : $dbw->bitOr( $field, $value ) );
133 }
134
135 public static function suppressUserName( $name, $userId, $dbw = null ) {
136 return self::setUsernameBitfields( $name, $userId, '|', $dbw );
137 }
138
139 public static function unsuppressUserName( $name, $userId, $dbw = null ) {
140 return self::setUsernameBitfields( $name, $userId, '&', $dbw );
141 }
142}
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
const DELETED_ACTION
Definition LogPage.php:33
Backend functions for suppressing and unsuppressing all references to a given user,...
static suppressUserName( $name, $userId, $dbw=null)
static unsuppressUserName( $name, $userId, $dbw=null)
static setUsernameBitfields( $name, $userId, $op, $dbw)
Update *_deleted bitfields in various tables to hide or unhide usernames.
static buildSetBitDeletedField( $field, $op, $value, $dbw)
const DELETED_USER
Definition Revision.php:78
const DELETED_RESTRICTED
Definition Revision.php:79
static makeTitleSafe( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition Title.php:548
const NS_USER
Definition Defines.php:72
const DB_MASTER
Definition Defines.php:48
Allows to change the fields on the form that will be generated $name
Definition hooks.txt:314
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
Basic database interface for live and lazy-loaded DB handles.
Definition IDatabase.php:35