MediaWiki  1.27.2
RawAction.php
Go to the documentation of this file.
1 <?php
35 class RawAction extends FormlessAction {
36  public function getName() {
37  return 'raw';
38  }
39 
40  public function requiresWrite() {
41  return false;
42  }
43 
44  public function requiresUnblock() {
45  return false;
46  }
47 
48  function onView() {
49  $this->getOutput()->disable();
50  $request = $this->getRequest();
51  $response = $request->response();
52  $config = $this->context->getConfig();
53 
54  if ( !$request->checkUrlExtension() ) {
55  return;
56  }
57 
58  if ( $this->getOutput()->checkLastModified( $this->page->getTouched() ) ) {
59  return; // Client cache fresh and headers sent, nothing more to do.
60  }
61 
62  $gen = $request->getVal( 'gen' );
63  if ( $gen == 'css' || $gen == 'js' ) {
64  $this->gen = true;
65  }
66 
67  $contentType = $this->getContentType();
68 
69  $maxage = $request->getInt( 'maxage', $config->get( 'SquidMaxage' ) );
70  $smaxage = $request->getIntOrNull( 'smaxage' );
71  if ( $smaxage === null ) {
72  if ( $contentType == 'text/css' || $contentType == 'text/javascript' ) {
73  // CSS/JS raw content has its own CDN max age configuration.
74  // Note: Title::getCdnUrls() includes action=raw for css/js pages,
75  // so if using the canonical url, this will get HTCP purges.
76  $smaxage = intval( $config->get( 'ForcedRawSMaxage' ) );
77  } else {
78  // No CDN cache for anything else
79  $smaxage = 0;
80  }
81  }
82 
83  // Set standard Vary headers so cache varies on cookies and such (T125283)
84  $response->header( $this->getOutput()->getVaryHeader() );
85  if ( $config->get( 'UseKeyHeader' ) ) {
86  $response->header( $this->getOutput()->getKeyHeader() );
87  }
88 
89  $response->header( 'Content-type: ' . $contentType . '; charset=UTF-8' );
90  // Output may contain user-specific data;
91  // vary generated content for open sessions on private wikis
92  $privateCache = !User::isEveryoneAllowed( 'read' ) &&
93  ( $smaxage == 0 || MediaWiki\Session\SessionManager::getGlobalSession()->isPersistent() );
94  // Don't accidentally cache cookies if user is logged in (T55032)
95  $privateCache = $privateCache || $this->getUser()->isLoggedIn();
96  $mode = $privateCache ? 'private' : 'public';
97  $response->header(
98  'Cache-Control: ' . $mode . ', s-maxage=' . $smaxage . ', max-age=' . $maxage
99  );
100 
101  $text = $this->getRawText();
102 
103  // Don't return a 404 response for CSS or JavaScript;
104  // 404s aren't generally cached and it would create
105  // extra hits when user CSS/JS are on and the user doesn't
106  // have the pages.
107  if ( $text === false && $contentType == 'text/x-wiki' ) {
108  $response->statusHeader( 404 );
109  }
110 
111  if ( !Hooks::run( 'RawPageViewBeforeOutput', [ &$this, &$text ] ) ) {
112  wfDebug( __METHOD__ . ": RawPageViewBeforeOutput hook broke raw page output.\n" );
113  }
114 
115  echo $text;
116  }
117 
124  public function getRawText() {
126 
127  $text = false;
128  $title = $this->getTitle();
129  $request = $this->getRequest();
130 
131  // If it's a MediaWiki message we can just hit the message cache
132  if ( $request->getBool( 'usemsgcache' ) && $title->getNamespace() == NS_MEDIAWIKI ) {
133  // The first "true" is to use the database, the second is to use
134  // the content langue and the last one is to specify the message
135  // key already contains the language in it ("/de", etc.).
136  $text = MessageCache::singleton()->get( $title->getDBkey(), true, true, true );
137  // If the message doesn't exist, return a blank
138  if ( $text === false ) {
139  $text = '';
140  }
141  } else {
142  // Get it from the DB
144  if ( $rev ) {
145  $lastmod = wfTimestamp( TS_RFC2822, $rev->getTimestamp() );
146  $request->response()->header( "Last-modified: $lastmod" );
147 
148  // Public-only due to cache headers
149  $content = $rev->getContent();
150 
151  if ( $content === null ) {
152  // revision not found (or suppressed)
153  $text = false;
154  } elseif ( !$content instanceof TextContent ) {
155  // non-text content
156  wfHttpError( 415, "Unsupported Media Type", "The requested page uses the content model `"
157  . $content->getModel() . "` which is not supported via this interface." );
158  die();
159  } else {
160  // want a section?
161  $section = $request->getIntOrNull( 'section' );
162  if ( $section !== null ) {
163  $content = $content->getSection( $section );
164  }
165 
166  if ( $content === null || $content === false ) {
167  // section not found (or section not supported, e.g. for JS and CSS)
168  $text = false;
169  } else {
170  $text = $content->getNativeData();
171  }
172  }
173  }
174  }
175 
176  if ( $text !== false && $text !== '' && $request->getVal( 'templates' ) === 'expand' ) {
177  $text = $wgParser->preprocess(
178  $text,
179  $title,
181  );
182  }
183 
184  return $text;
185  }
186 
192  public function getOldId() {
193  $oldid = $this->getRequest()->getInt( 'oldid' );
194  switch ( $this->getRequest()->getText( 'direction' ) ) {
195  case 'next':
196  # output next revision, or nothing if there isn't one
197  $nextid = 0;
198  if ( $oldid ) {
199  $nextid = $this->getTitle()->getNextRevisionID( $oldid );
200  }
201  $oldid = $nextid ?: -1;
202  break;
203  case 'prev':
204  # output previous revision, or nothing if there isn't one
205  if ( !$oldid ) {
206  # get the current revision so we can get the penultimate one
207  $oldid = $this->page->getLatest();
208  }
209  $previd = $this->getTitle()->getPreviousRevisionID( $oldid );
210  $oldid = $previd ?: -1;
211  break;
212  case 'cur':
213  $oldid = 0;
214  break;
215  }
216 
217  return $oldid;
218  }
219 
225  public function getContentType() {
226  $ctype = $this->getRequest()->getVal( 'ctype' );
227 
228  if ( $ctype == '' ) {
229  $gen = $this->getRequest()->getVal( 'gen' );
230  if ( $gen == 'js' ) {
231  $ctype = 'text/javascript';
232  } elseif ( $gen == 'css' ) {
233  $ctype = 'text/css';
234  }
235  }
236 
237  $allowedCTypes = [ 'text/x-wiki', 'text/javascript', 'text/css', 'application/x-zope-edit' ];
238  if ( $ctype == '' || !in_array( $ctype, $allowedCTypes ) ) {
239  $ctype = 'text/x-wiki';
240  }
241 
242  return $ctype;
243  }
244 }
const TS_RFC2822
RFC 2822 format, for E-mail and HTTP headers.
static newFromContext(IContextSource $context)
Get a ParserOptions object from a IContextSource object.
getOutput()
Get the OutputPage being used for this instance.
Definition: Action.php:207
getTitle()
Shortcut to get the Title object from the page.
Definition: Action.php:246
$wgParser
Definition: Setup.php:809
getUser()
Shortcut to get the User being used for this instance.
Definition: Action.php:217
wfHttpError($code, $label, $desc)
Provide a simple HTTP error.
this hook is for auditing only $response
Definition: hooks.txt:762
getContentType()
Get the content type to use for the response.
Definition: RawAction.php:225
when a variable name is used in a it is silently declared as a new local masking the global
Definition: design.txt:93
static newFromTitle(LinkTarget $linkTarget, $id=0, $flags=0)
Load either the current, or a specified, revision that's attached to a given link target...
Definition: Revision.php:117
requiresUnblock()
Definition: RawAction.php:44
wfDebug($text, $dest= 'all', array $context=[])
Sends a line to the debug log if enabled or, optionally, to a comment in output.
static isEveryoneAllowed($right)
Check if all users may be assumed to have the given permission.
Definition: User.php:4572
wfTimestamp($outputtype=TS_UNIX, $ts=0)
Get a timestamp string in one of various formats.
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 noclasses just before the function returns a value If you return true
Definition: hooks.txt:1798
Content object implementation for representing flat text.
Definition: TextContent.php:35
getRawText()
Get the text that should be returned, or false if the page or revision was not found.
Definition: RawAction.php:124
requiresWrite()
Definition: RawAction.php:40
getConfig()
Get the Config object.
namespace and then decline to actually register it file or subcat img or subcat $title
Definition: hooks.txt:912
getContext()
Get the IContextSource in use here.
Definition: Action.php:178
static run($event, array $args=[], $deprecatedVersion=null)
Call hook functions defined in Hooks::register and $wgHooks.
Definition: Hooks.php:131
presenting them properly to the user as errors is done by the caller return true use this to change the list i e etc $rev
Definition: hooks.txt:1584
const NS_MEDIAWIKI
Definition: Defines.php:77
usually copyright or history_copyright This message must be in HTML not wikitext if the section is included from a template $section
Definition: hooks.txt:2715
An action which just does something, without showing a form first.
static getGlobalSession()
Get the "global" session.
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
error also a ContextSource you ll probably need to make sure the header is varied on $request
Definition: hooks.txt:2418
this hook is for auditing only RecentChangesLinked and Watchlist RecentChangesLinked and Watchlist e g Watchlist removed from all revisions and log entries to which it was applied This gives extensions a chance to take it off their books as the deletion has already been partly carried out by this point or something similar the user will be unable to create the tag set and then return false from the hook function Ensure you consume the ChangeTagAfterDelete hook to carry out custom deletion actions as context called by AbstractContent::getParserOutput May be used to override the normal model specific rendering of page content $content
Definition: hooks.txt:1004
getOldId()
Get the ID of the revision that should used to get the text.
Definition: RawAction.php:192
A simple method to retrieve the plain source of an article, using "action=raw" in the GET request str...
Definition: RawAction.php:35
getRequest()
Get the WebRequest being used for this instance.
Definition: Action.php:197
do that in ParserLimitReportFormat instead use this to modify the parameters of the image and a DIV can begin in one section and end in another Make sure your code can handle that case gracefully See the EditSectionClearerLink extension for an example zero but section is usually empty its values are the globals values before the output is cached one of or reset my talk page
Definition: hooks.txt:2338
static singleton()
Get the signleton instance of this class.