MediaWiki  master
SpecialWantedfiles.php
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1 <?php
31 
38 
40  private $repoGroup;
41 
47  public function __construct(
48  $repoGroup,
51  ) {
52  parent::__construct( is_string( $repoGroup ) ? $repoGroup : 'Wantedfiles' );
53  // This class is extended and therefor fallback to global state - T265301
54  $services = MediaWikiServices::getInstance();
55  $this->repoGroup = $repoGroup instanceof RepoGroup
56  ? $repoGroup
57  : $services->getRepoGroup();
58  $this->setDBLoadBalancer( $loadBalancer ?? $services->getDBLoadBalancer() );
59  $this->setLinkBatchFactory( $linkBatchFactory ?? $services->getLinkBatchFactory() );
60  }
61 
62  protected function getPageHeader() {
63  # Specifically setting to use "Wanted Files" (NS_MAIN) as title, so as to get what
64  # category would be used on main namespace pages, for those tricky wikipedia
65  # admins who like to do {{#ifeq:{{NAMESPACE}}|foo|bar|....}}.
66  $catMessage = $this->msg( 'broken-file-category' )
67  ->page( PageReferenceValue::localReference( NS_MAIN, "Wanted Files" ) )
68  ->inContentLanguage();
69 
70  if ( !$catMessage->isDisabled() ) {
71  $category = Title::makeTitleSafe( NS_CATEGORY, $catMessage->text() );
72  } else {
73  $category = false;
74  }
75 
76  $noForeign = '';
77  if ( !$this->likelyToHaveFalsePositives() ) {
78  // Additional messages for grep:
79  // wantedfiletext-cat-noforeign, wantedfiletext-nocat-noforeign
80  $noForeign = '-noforeign';
81  }
82 
83  if ( $category ) {
84  return $this
85  ->msg( 'wantedfiletext-cat' . $noForeign )
86  ->params( $category->getFullText() )
87  ->parseAsBlock();
88  } else {
89  return $this
90  ->msg( 'wantedfiletext-nocat' . $noForeign )
91  ->parseAsBlock();
92  }
93  }
94 
103  protected function likelyToHaveFalsePositives() {
104  return $this->repoGroup->hasForeignRepos();
105  }
106 
117  protected function forceExistenceCheck() {
118  return true;
119  }
120 
130  protected function existenceCheck( Title $title ) {
131  return (bool)$this->repoGroup->findFile( $title );
132  }
133 
134  public function getQueryInfo() {
135  return [
136  'tables' => [
137  'imagelinks',
138  'page',
139  'redirect',
140  'img1' => 'image',
141  'img2' => 'image',
142  ],
143  'fields' => [
144  'namespace' => NS_FILE,
145  'title' => 'il_to',
146  'value' => 'COUNT(*)'
147  ],
148  'conds' => [
149  'img1.img_name' => null,
150  // We also need to exclude file redirects
151  'img2.img_name' => null,
152  ],
153  'options' => [ 'GROUP BY' => 'il_to' ],
154  'join_conds' => [
155  'img1' => [ 'LEFT JOIN',
156  'il_to = img1.img_name'
157  ],
158  'page' => [ 'LEFT JOIN', [
159  'il_to = page_title',
160  'page_namespace' => NS_FILE,
161  ] ],
162  'redirect' => [ 'LEFT JOIN', [
163  'page_id = rd_from',
164  'rd_namespace' => NS_FILE,
165  'rd_interwiki' => ''
166  ] ],
167  'img2' => [ 'LEFT JOIN',
168  'rd_title = img2.img_name'
169  ]
170  ]
171  ];
172  }
173 
174  protected function getGroupName() {
175  return 'maintenance';
176  }
177 }
const NS_FILE
Definition: Defines.php:70
const NS_MAIN
Definition: Defines.php:64
const NS_CATEGORY
Definition: Defines.php:78
MediaWikiServices is the service locator for the application scope of MediaWiki.
Immutable value object representing a page reference.
setDBLoadBalancer(ILoadBalancer $loadBalancer)
Definition: QueryPage.php:895
LinkBatchFactory null $linkBatchFactory
Definition: QueryPage.php:75
setLinkBatchFactory(LinkBatchFactory $linkBatchFactory)
Definition: QueryPage.php:136
ILoadBalancer null $loadBalancer
Definition: QueryPage.php:72
Prioritized list of file repositories.
Definition: RepoGroup.php:29
msg( $key,... $params)
Wrapper around wfMessage that sets the current context.
Represents a title within MediaWiki.
Definition: Title.php:48
static makeTitleSafe( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:663
Querypage that lists the most wanted files.
__construct( $repoGroup, ILoadBalancer $loadBalancer=null, LinkBatchFactory $linkBatchFactory=null)
existenceCheck(Title $title)
Does the file exist?
getPageHeader()
The content returned by this function will be output before any result.
getQueryInfo()
Subclasses return an SQL query here, formatted as an array with the following keys: tables => Table(s...
getGroupName()
Under which header this special page is listed in Special:SpecialPages See messages 'specialpages-gro...
likelyToHaveFalsePositives()
Whether foreign repos are likely to cause false positives.
forceExistenceCheck()
KLUGE: The results may contain false positives for files that exist e.g.
Class definition for a wanted query page like WantedPages, WantedTemplates, etc.
Database cluster connection, tracking, load balancing, and transaction manager interface.