MediaWiki  master
WikiFilePage.php
Go to the documentation of this file.
1 <?php
24 
30 class WikiFilePage extends WikiPage {
32  protected $mFile = false;
34  protected $mRepo = null;
36  protected $mFileLoaded = false;
38  protected $mDupes = null;
39 
40  public function __construct( $title ) {
41  parent::__construct( $title );
42  $this->mDupes = null;
43  $this->mRepo = null;
44  }
45 
49  public function setFile( $file ) {
50  $this->mFile = $file;
51  $this->mFileLoaded = true;
52  }
53 
57  protected function loadFile() {
58  if ( $this->mFileLoaded ) {
59  return true;
60  }
61  $this->mFileLoaded = true;
62 
63  $this->mFile = wfFindFile( $this->mTitle );
64  if ( !$this->mFile ) {
65  $this->mFile = wfLocalFile( $this->mTitle ); // always a File
66  }
67  $this->mRepo = $this->mFile->getRepo();
68  return true;
69  }
70 
74  public function getRedirectTarget() {
75  $this->loadFile();
76  if ( $this->mFile->isLocal() ) {
77  return parent::getRedirectTarget();
78  }
79  // Foreign image page
80  $from = $this->mFile->getRedirected();
81  $to = $this->mFile->getName();
82  if ( $from == $to ) {
83  return null;
84  }
85  $this->mRedirectTarget = Title::makeTitle( NS_FILE, $to );
87  }
88 
92  public function followRedirect() {
93  $this->loadFile();
94  if ( $this->mFile->isLocal() ) {
95  return parent::followRedirect();
96  }
97  $from = $this->mFile->getRedirected();
98  $to = $this->mFile->getName();
99  if ( $from == $to ) {
100  return false;
101  }
102  return Title::makeTitle( NS_FILE, $to );
103  }
104 
108  public function isRedirect() {
109  $this->loadFile();
110  if ( $this->mFile->isLocal() ) {
111  return parent::isRedirect();
112  }
113 
114  return (bool)$this->mFile->getRedirected();
115  }
116 
120  public function isLocal() {
121  $this->loadFile();
122  return $this->mFile->isLocal();
123  }
124 
128  public function getFile() {
129  $this->loadFile();
130  return $this->mFile;
131  }
132 
136  public function getDuplicates() {
137  $this->loadFile();
138  if ( !is_null( $this->mDupes ) ) {
139  return $this->mDupes;
140  }
141  $hash = $this->mFile->getSha1();
142  if ( !( $hash ) ) {
143  $this->mDupes = [];
144  return $this->mDupes;
145  }
146  $dupes = RepoGroup::singleton()->findBySha1( $hash );
147  // Remove duplicates with self and non matching file sizes
148  $self = $this->mFile->getRepoName() . ':' . $this->mFile->getName();
149  $size = $this->mFile->getSize();
150 
154  foreach ( $dupes as $index => $file ) {
155  $key = $file->getRepoName() . ':' . $file->getName();
156  if ( $key == $self ) {
157  unset( $dupes[$index] );
158  }
159  if ( $file->getSize() != $size ) {
160  unset( $dupes[$index] );
161  }
162  }
163  $this->mDupes = $dupes;
164  return $this->mDupes;
165  }
166 
171  public function doPurge() {
172  $this->loadFile();
173 
174  if ( $this->mFile->exists() ) {
175  wfDebug( 'ImagePage::doPurge purging ' . $this->mFile->getName() . "\n" );
177  new HTMLCacheUpdate( $this->mTitle, 'imagelinks', 'file-purge' )
178  );
179  } else {
180  wfDebug( 'ImagePage::doPurge no image for '
181  . $this->mFile->getName() . "; limiting purge to cache only\n" );
182  }
183 
184  // even if the file supposedly doesn't exist, force any cached information
185  // to be updated (in case the cached information is wrong)
186 
187  // Purge current version and its thumbnails
188  $this->mFile->purgeCache( [ 'forThumbRefresh' => true ] );
189 
190  // Purge the old versions and their thumbnails
191  foreach ( $this->mFile->getHistory() as $oldFile ) {
192  $oldFile->purgeCache( [ 'forThumbRefresh' => true ] );
193  }
194 
195  if ( $this->mRepo ) {
196  // Purge redirect cache
197  $this->mRepo->invalidateImageRedirect( $this->mTitle );
198  }
199 
200  return parent::doPurge();
201  }
202 
212  public function getForeignCategories() {
213  $this->loadFile();
215  $file = $this->mFile;
216 
217  if ( !$file instanceof LocalFile ) {
218  wfDebug( __CLASS__ . '::' . __METHOD__ . " is not supported for this file\n" );
219  return TitleArray::newFromResult( new FakeResultWrapper( [] ) );
220  }
221 
223  $repo = $file->getRepo();
224  $dbr = $repo->getReplicaDB();
225 
226  $res = $dbr->select(
227  [ 'page', 'categorylinks' ],
228  [
229  'page_title' => 'cl_to',
230  'page_namespace' => NS_CATEGORY,
231  ],
232  [
233  'page_namespace' => $title->getNamespace(),
234  'page_title' => $title->getDBkey(),
235  ],
236  __METHOD__,
237  [],
238  [ 'categorylinks' => [ 'INNER JOIN', 'page_id = cl_from' ] ]
239  );
240 
242  }
243 
248  public function getWikiDisplayName() {
249  return $this->getFile()->getRepo()->getDisplayName();
250  }
251 
256  public function getSourceURL() {
257  return $this->getFile()->getDescriptionUrl();
258  }
259 }
LocalRepo $mRepo
Apache License January AND DISTRIBUTION Definitions License shall mean the terms and conditions for use
Title $mTitle
Definition: WikiPage.php:50
getForeignCategories()
Get the categories this file is a member of on the wiki where it was uploaded.
wfLocalFile( $title)
Get an object referring to a locally registered file.
doPurge()
Override handling of action=purge.
Class to invalidate the HTML cache of all the pages linking to a given title.
wfFindFile( $title, $options=[])
Find a file.
$self
$res
Definition: database.txt:21
static singleton()
Get a RepoGroup instance.
Definition: RepoGroup.php:61
wfDebug( $text, $dest='all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
const NS_CATEGORY
Definition: Defines.php:78
static newFromResult( $res)
Definition: TitleArray.php:40
namespace and then decline to actually register it file or subcat img or subcat $title
Definition: hooks.txt:936
const NS_FILE
Definition: Defines.php:70
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
Special handling for file pages.
static makeTitle( $ns, $title, $fragment='', $interwiki='')
Create a new Title from a namespace index and a DB key.
Definition: Title.php:545
__construct( $title)
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 addUpdate(DeferrableUpdate $update, $stage=self::POSTSEND)
Add an update to the deferred list to be run later by execute()
Overloads the relevant methods of the real ResultsWrapper so it doesn&#39;t go anywhere near an actual da...
Class to represent a local file in the wiki&#39;s own database.
Definition: LocalFile.php:46
setFile( $file)
Title $mRedirectTarget
Definition: WikiPage.php:76