MediaWiki  1.30.0
RevisionDeleteUser.php
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1 <?php
25 
35 
44  private static function setUsernameBitfields( $name, $userId, $op, $dbw ) {
45  if ( !$userId || ( $op !== '|' && $op !== '&' ) ) {
46  return false; // sanity check
47  }
48  if ( !$dbw instanceof IDatabase ) {
49  $dbw = wfGetDB( DB_MASTER );
50  }
51 
52  # To suppress, we OR the current bitfields with Revision::DELETED_USER
53  # to put a 1 in the username *_deleted bit. To unsuppress we AND the
54  # current bitfields with the inverse of Revision::DELETED_USER. The
55  # username bit is made to 0 (x & 0 = 0), while others are unchanged (x & 1 = x).
56  # The same goes for the sysop-restricted *_deleted bit.
59  if ( $op == '&' ) {
60  $delUser = $dbw->bitNot( $delUser );
61  $delAction = $dbw->bitNot( $delAction );
62  }
63 
64  # Normalize user name
65  $userTitle = Title::makeTitleSafe( NS_USER, $name );
66  $userDbKey = $userTitle->getDBkey();
67 
68  # Hide name from live edits
69  $dbw->update(
70  'revision',
71  [ self::buildSetBitDeletedField( 'rev_deleted', $op, $delUser, $dbw ) ],
72  [ 'rev_user' => $userId ],
73  __METHOD__ );
74 
75  # Hide name from deleted edits
76  $dbw->update(
77  'archive',
78  [ self::buildSetBitDeletedField( 'ar_deleted', $op, $delUser, $dbw ) ],
79  [ 'ar_user_text' => $name ],
80  __METHOD__
81  );
82 
83  # Hide name from logs
84  $dbw->update(
85  'logging',
86  [ self::buildSetBitDeletedField( 'log_deleted', $op, $delUser, $dbw ) ],
87  [ 'log_user' => $userId, 'log_type != ' . $dbw->addQuotes( 'suppress' ) ],
88  __METHOD__
89  );
90  $dbw->update(
91  'logging',
92  [ self::buildSetBitDeletedField( 'log_deleted', $op, $delAction, $dbw ) ],
93  [ 'log_namespace' => NS_USER, 'log_title' => $userDbKey,
94  'log_type != ' . $dbw->addQuotes( 'suppress' ) ],
95  __METHOD__
96  );
97 
98  # Hide name from RC
99  $dbw->update(
100  'recentchanges',
101  [ self::buildSetBitDeletedField( 'rc_deleted', $op, $delUser, $dbw ) ],
102  [ 'rc_user_text' => $name ],
103  __METHOD__
104  );
105  $dbw->update(
106  'recentchanges',
107  [ self::buildSetBitDeletedField( 'rc_deleted', $op, $delAction, $dbw ) ],
108  [ 'rc_namespace' => NS_USER, 'rc_title' => $userDbKey, 'rc_logid > 0' ],
109  __METHOD__
110  );
111 
112  # Hide name from live images
113  $dbw->update(
114  'oldimage',
115  [ self::buildSetBitDeletedField( 'oi_deleted', $op, $delUser, $dbw ) ],
116  [ 'oi_user_text' => $name ],
117  __METHOD__
118  );
119 
120  # Hide name from deleted images
121  $dbw->update(
122  'filearchive',
123  [ self::buildSetBitDeletedField( 'fa_deleted', $op, $delUser, $dbw ) ],
124  [ 'fa_user_text' => $name ],
125  __METHOD__
126  );
127  # Done!
128  return true;
129  }
130 
131  private static function buildSetBitDeletedField( $field, $op, $value, $dbw ) {
132  return $field . ' = ' . ( $op === '&'
133  ? $dbw->bitAnd( $field, $value )
134  : $dbw->bitOr( $field, $value ) );
135  }
136 
137  public static function suppressUserName( $name, $userId, $dbw = null ) {
138  return self::setUsernameBitfields( $name, $userId, '|', $dbw );
139  }
140 
141  public static function unsuppressUserName( $name, $userId, $dbw = null ) {
142  return self::setUsernameBitfields( $name, $userId, '&', $dbw );
143  }
144 }
Revision\DELETED_USER
const DELETED_USER
Definition: Revision.php:92
Revision\DELETED_RESTRICTED
const DELETED_RESTRICTED
Definition: Revision.php:93
use
as see the revision history and available at free of to any person obtaining a copy of this software and associated documentation to deal in the Software without including without limitation the rights to use
Definition: MIT-LICENSE.txt:10
RevisionDeleteUser\buildSetBitDeletedField
static buildSetBitDeletedField( $field, $op, $value, $dbw)
Definition: RevisionDeleteUser.php:131
$name
Allows to change the fields on the form that will be generated $name
Definition: hooks.txt:302
RevisionDeleteUser\unsuppressUserName
static unsuppressUserName( $name, $userId, $dbw=null)
Definition: RevisionDeleteUser.php:141
php
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:35
Wikimedia\Rdbms\IDatabase
Basic database interface for live and lazy-loaded relation database handles.
Definition: IDatabase.php:40
wfGetDB
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
Definition: GlobalFunctions.php:2856
DB_MASTER
const DB_MASTER
Definition: defines.php:26
LogPage\DELETED_ACTION
const DELETED_ACTION
Definition: LogPage.php:32
Title\makeTitleSafe
static makeTitleSafe( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:557
$value
$value
Definition: styleTest.css.php:45
RevisionDeleteUser
Backend functions for suppressing and unsuppressing all references to a given user,...
Definition: RevisionDeleteUser.php:34
RevisionDeleteUser\setUsernameBitfields
static setUsernameBitfields( $name, $userId, $op, $dbw)
Update *_deleted bitfields in various tables to hide or unhide usernames.
Definition: RevisionDeleteUser.php:44
NS_USER
const NS_USER
Definition: Defines.php:67
RevisionDeleteUser\suppressUserName
static suppressUserName( $name, $userId, $dbw=null)
Definition: RevisionDeleteUser.php:137