MediaWiki  master
LocalIdLookup.php
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1 <?php
34 
35  public function isAttached( User $user, $wikiId = null ) {
37 
38  // If the user has no ID, it can't be attached
39  if ( !$user->getId() ) {
40  return false;
41  }
42 
43  // Easy case, we're checking locally
44  if ( $wikiId === null || WikiMap::isCurrentWikiId( $wikiId ) ) {
45  return true;
46  }
47 
48  // Assume that shared user tables are set up as described above, if
49  // they're being used at all.
50  return $wgSharedDB !== null &&
51  in_array( 'user', $wgSharedTables, true ) &&
52  in_array( $wikiId, $wgLocalDatabases, true );
53  }
54 
55  public function lookupCentralIds(
56  array $idToName, $audience = self::AUDIENCE_PUBLIC, $flags = self::READ_NORMAL
57  ) {
58  if ( !$idToName ) {
59  return [];
60  }
61 
62  $audience = $this->checkAudience( $audience );
63  list( $index, $options ) = DBAccessObjectUtils::getDBOptions( $flags );
64  $db = wfGetDB( $index );
65 
66  $tables = [ 'user' ];
67  $fields = [ 'user_id', 'user_name' ];
68  $where = [
69  'user_id' => array_map( 'intval', array_keys( $idToName ) ),
70  ];
71  $join = [];
72  if ( $audience && !$audience->isAllowed( 'hideuser' ) ) {
73  $tables[] = 'ipblocks';
74  $join['ipblocks'] = [ 'LEFT JOIN', 'ipb_user=user_id' ];
75  $fields[] = 'ipb_deleted';
76  }
77 
78  $res = $db->select( $tables, $fields, $where, __METHOD__, $options, $join );
79  foreach ( $res as $row ) {
80  $idToName[$row->user_id] = empty( $row->ipb_deleted ) ? $row->user_name : '';
81  }
82 
83  return $idToName;
84  }
85 
86  public function lookupUserNames(
87  array $nameToId, $audience = self::AUDIENCE_PUBLIC, $flags = self::READ_NORMAL
88  ) {
89  if ( !$nameToId ) {
90  return [];
91  }
92 
93  $audience = $this->checkAudience( $audience );
94  list( $index, $options ) = DBAccessObjectUtils::getDBOptions( $flags );
95  $db = wfGetDB( $index );
96 
97  $tables = [ 'user' ];
98  $fields = [ 'user_id', 'user_name' ];
99  $where = [
100  'user_name' => array_map( 'strval', array_keys( $nameToId ) ),
101  ];
102  $join = [];
103  if ( $audience && !$audience->isAllowed( 'hideuser' ) ) {
104  $tables[] = 'ipblocks';
105  $join['ipblocks'] = [ 'LEFT JOIN', 'ipb_user=user_id' ];
106  $where[] = 'ipb_deleted = 0 OR ipb_deleted IS NULL';
107  }
108 
109  $res = $db->select( $tables, $fields, $where, __METHOD__, $options, $join );
110  foreach ( $res as $row ) {
111  $nameToId[$row->user_name] = (int)$row->user_id;
112  }
113 
114  return $nameToId;
115  }
116 }
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))
deferred txt A few of the database updates required by various functions here can be deferred until after the result page is displayed to the user For updating the view updating the linked to tables after a etc PHP does not yet have any way to tell the server to actually return and disconnect while still running these but it might have such a feature in the future We handle these by creating a deferred update object and putting those objects on a global list
Definition: deferred.txt:11
lookupUserNames(array $nameToId, $audience=self::AUDIENCE_PUBLIC, $flags=self::READ_NORMAL)
wfGetDB( $db, $groups=[], $wiki=false)
Get a Database object.
$wgSharedTables
lookupCentralIds(array $idToName, $audience=self::AUDIENCE_PUBLIC, $flags=self::READ_NORMAL)
static getDBOptions( $bitfield)
Get an appropriate DB index, options, and fallback DB index for a query.
this hook is for auditing only RecentChangesLinked and Watchlist Do not use this to implement individual filters if they are compatible with the ChangesListFilter and ChangesListFilterGroup structure use sub classes of those in conjunction with the ChangesListSpecialPageStructuredFilters hook This hook can be used to implement filters that do not implement that or custom behavior that is not an individual filter e g Watchlist & $tables
Definition: hooks.txt:979
isAttached(User $user, $wikiId=null)
The User object encapsulates all of the user-specific settings (user_id, name, rights, email address, options, last login time).
Definition: User.php:51
$res
Definition: database.txt:21
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:1982
$wgSharedDB
Shared database for multiple wikis.
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 null
Definition: hooks.txt:780
checkAudience( $audience)
Check that the "audience" parameter is valid.
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
Definition: distributors.txt:9
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
static isCurrentWikiId( $wikiId)
Definition: WikiMap.php:322
getId()
Get the user&#39;s ID.
Definition: User.php:2284
string [] $wgLocalDatabases
Other wikis on this site, can be administered from a single developer account.
A CentralIdLookup provider that just uses local IDs.
return true to allow those checks to and false if checking is done & $user
Definition: hooks.txt:1473