317 lines
11 KiB
PHP
317 lines
11 KiB
PHP
<?php
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/**
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* @todo document
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* @ingroup Parser
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*/
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class CacheTime {
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var $mVersion = Parser::VERSION, # Compatibility check
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$mCacheTime = '', # Time when this object was generated, or -1 for uncacheable. Used in ParserCache.
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$mCacheExpiry = null, # Seconds after which the object should expire, use 0 for uncachable. Used in ParserCache.
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$mContainsOldMagic; # Boolean variable indicating if the input contained variables like {{CURRENTDAY}}
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function getCacheTime() { return $this->mCacheTime; }
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function containsOldMagic() { return $this->mContainsOldMagic; }
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function setContainsOldMagic( $com ) { return wfSetVar( $this->mContainsOldMagic, $com ); }
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/**
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* setCacheTime() sets the timestamp expressing when the page has been rendered.
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* This doesn not control expiry, see updateCacheExpiry() for that!
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*/
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function setCacheTime( $t ) { return wfSetVar( $this->mCacheTime, $t ); }
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/**
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* Sets the number of seconds after which this object should expire.
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* This value is used with the ParserCache.
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* If called with a value greater than the value provided at any previous call,
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* the new call has no effect. The value returned by getCacheExpiry is smaller
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* or equal to the smallest number that was provided as an argument to
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* updateCacheExpiry().
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*/
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function updateCacheExpiry( $seconds ) {
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$seconds = (int)$seconds;
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if ( $this->mCacheExpiry === null || $this->mCacheExpiry > $seconds )
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$this->mCacheExpiry = $seconds;
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// hack: set old-style marker for uncacheable entries.
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if ( $this->mCacheExpiry !== null && $this->mCacheExpiry <= 0 )
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$this->mCacheTime = -1;
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}
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/**
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* Returns the number of seconds after which this object should expire.
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* This method is used by ParserCache to determine how long the ParserOutput can be cached.
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* The timestamp of expiry can be calculated by adding getCacheExpiry() to getCacheTime().
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* The value returned by getCacheExpiry is smaller or equal to the smallest number
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* that was provided to a call of updateCacheExpiry(), and smaller or equal to the
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* value of $wgParserCacheExpireTime.
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*/
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function getCacheExpiry() {
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global $wgParserCacheExpireTime;
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if ( $this->mCacheTime < 0 ) return 0; // old-style marker for "not cachable"
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$expire = $this->mCacheExpiry;
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if ( $expire === null )
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$expire = $wgParserCacheExpireTime;
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else
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$expire = min( $expire, $wgParserCacheExpireTime );
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if( $this->containsOldMagic() ) { //compatibility hack
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$expire = min( $expire, 3600 ); # 1 hour
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}
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if ( $expire <= 0 ) return 0; // not cachable
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else return $expire;
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}
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function isCacheable() {
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return $this->getCacheExpiry() > 0;
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}
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/**
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* Return true if this cached output object predates the global or
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* per-article cache invalidation timestamps, or if it comes from
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* an incompatible older version.
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*
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* @param $touched String: the affected article's last touched timestamp
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* @return Boolean
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*/
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public function expired( $touched ) {
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global $wgCacheEpoch;
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return !$this->isCacheable() || // parser says it's uncacheable
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$this->getCacheTime() < $touched ||
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$this->getCacheTime() <= $wgCacheEpoch ||
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$this->getCacheTime() < wfTimestamp( TS_MW, time() - $this->getCacheExpiry() ) || // expiry period has passed
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!isset( $this->mVersion ) ||
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version_compare( $this->mVersion, Parser::VERSION, "lt" );
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}
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}
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class ParserOutput extends CacheTime
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{
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var $mText, # The output text
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$mLanguageLinks, # List of the full text of language links, in the order they appear
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$mCategories, # Map of category names to sort keys
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$mTitleText, # title text of the chosen language variant
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$mLinks = array(), # 2-D map of NS/DBK to ID for the links in the document. ID=zero for broken.
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$mTemplates = array(), # 2-D map of NS/DBK to ID for the template references. ID=zero for broken.
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$mTemplateIds = array(), # 2-D map of NS/DBK to rev ID for the template references. ID=zero for broken.
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$mImages = array(), # DB keys of the images used, in the array key only
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$mExternalLinks = array(), # External link URLs, in the key only
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$mInterwikiLinks = array(), # 2-D map of prefix/DBK (in keys only) for the inline interwiki links in the document.
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$mNewSection = false, # Show a new section link?
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$mHideNewSection = false, # Hide the new section link?
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$mNoGallery = false, # No gallery on category page? (__NOGALLERY__)
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$mHeadItems = array(), # Items to put in the <head> section
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$mOutputHooks = array(), # Hook tags as per $wgParserOutputHooks
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$mWarnings = array(), # Warning text to be returned to the user. Wikitext formatted, in the key only
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$mSections = array(), # Table of contents
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$mProperties = array(), # Name/value pairs to be cached in the DB
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$mTOCHTML = ''; # HTML of the TOC
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private $mIndexPolicy = ''; # 'index' or 'noindex'? Any other value will result in no change.
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function ParserOutput( $text = '', $languageLinks = array(), $categoryLinks = array(),
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$containsOldMagic = false, $titletext = '' )
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{
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$this->mText = $text;
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$this->mLanguageLinks = $languageLinks;
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$this->mCategories = $categoryLinks;
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$this->mContainsOldMagic = $containsOldMagic;
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$this->mTitleText = $titletext;
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}
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function getText() { return $this->mText; }
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function &getLanguageLinks() { return $this->mLanguageLinks; }
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function getInterwikiLinks() { return $this->mInterwikiLinks; }
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function getCategoryLinks() { return array_keys( $this->mCategories ); }
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function &getCategories() { return $this->mCategories; }
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function getTitleText() { return $this->mTitleText; }
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function getSections() { return $this->mSections; }
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function &getLinks() { return $this->mLinks; }
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function &getTemplates() { return $this->mTemplates; }
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function &getImages() { return $this->mImages; }
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function &getExternalLinks() { return $this->mExternalLinks; }
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function getNoGallery() { return $this->mNoGallery; }
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function getHeadItems() { return $this->mHeadItems; }
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function getSubtitle() { return $this->mSubtitle; }
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function getOutputHooks() { return (array)$this->mOutputHooks; }
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function getWarnings() { return array_keys( $this->mWarnings ); }
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function getIndexPolicy() { return $this->mIndexPolicy; }
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function getTOCHTML() { return $this->mTOCHTML; }
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function setText( $text ) { return wfSetVar( $this->mText, $text ); }
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function setLanguageLinks( $ll ) { return wfSetVar( $this->mLanguageLinks, $ll ); }
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function setCategoryLinks( $cl ) { return wfSetVar( $this->mCategories, $cl ); }
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function setTitleText( $t ) { return wfSetVar( $this->mTitleText, $t ); }
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function setSections( $toc ) { return wfSetVar( $this->mSections, $toc ); }
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function setIndexPolicy( $policy ) { return wfSetVar( $this->mIndexPolicy, $policy ); }
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function setTOCHTML( $tochtml ) { return wfSetVar( $this->mTOCHTML, $tochtml ); }
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function addCategory( $c, $sort ) { $this->mCategories[$c] = $sort; }
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function addLanguageLink( $t ) { $this->mLanguageLinks[] = $t; }
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function addWarning( $s ) { $this->mWarnings[$s] = 1; }
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function addOutputHook( $hook, $data = false ) {
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$this->mOutputHooks[] = array( $hook, $data );
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}
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function setNewSection( $value ) {
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$this->mNewSection = (bool)$value;
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}
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function hideNewSection ( $value ) {
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$this->mHideNewSection = (bool)$value;
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}
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function getHideNewSection () {
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return (bool)$this->mHideNewSection;
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}
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function getNewSection() {
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return (bool)$this->mNewSection;
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}
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function addExternalLink( $url ) {
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# We don't register links pointing to our own server, unless... :-)
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global $wgServer, $wgRegisterInternalExternals;
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if( $wgRegisterInternalExternals or stripos($url,$wgServer.'/')!==0)
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$this->mExternalLinks[$url] = 1;
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}
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/**
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* Record a local or interwiki inline link for saving in future link tables.
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*
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* @param $title Title object
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* @param $id Mixed: optional known page_id so we can skip the lookup
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*/
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function addLink( $title, $id = null ) {
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if ( $title->isExternal() ) {
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// Don't record interwikis in pagelinks
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$this->addInterwikiLink( $title );
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return;
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}
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$ns = $title->getNamespace();
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$dbk = $title->getDBkey();
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if ( $ns == NS_MEDIA ) {
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// Normalize this pseudo-alias if it makes it down here...
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$ns = NS_FILE;
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} elseif( $ns == NS_SPECIAL ) {
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// We don't record Special: links currently
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// It might actually be wise to, but we'd need to do some normalization.
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return;
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} elseif( $dbk === '' ) {
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// Don't record self links - [[#Foo]]
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return;
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}
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if ( !isset( $this->mLinks[$ns] ) ) {
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$this->mLinks[$ns] = array();
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}
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if ( is_null( $id ) ) {
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$id = $title->getArticleID();
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}
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$this->mLinks[$ns][$dbk] = $id;
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}
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function addImage( $name ) {
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$this->mImages[$name] = 1;
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}
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function addTemplate( $title, $page_id, $rev_id ) {
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$ns = $title->getNamespace();
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$dbk = $title->getDBkey();
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if ( !isset( $this->mTemplates[$ns] ) ) {
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$this->mTemplates[$ns] = array();
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}
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$this->mTemplates[$ns][$dbk] = $page_id;
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if ( !isset( $this->mTemplateIds[$ns] ) ) {
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$this->mTemplateIds[$ns] = array();
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}
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$this->mTemplateIds[$ns][$dbk] = $rev_id; // For versioning
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}
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/**
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* @param $title Title object, must be an interwiki link
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* @throws MWException if given invalid input
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*/
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function addInterwikiLink( $title ) {
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$prefix = $title->getInterwiki();
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if( $prefix == '' ) {
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throw new MWException( 'Non-interwiki link passed, internal parser error.' );
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}
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if (!isset($this->mInterwikiLinks[$prefix])) {
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$this->mInterwikiLinks[$prefix] = array();
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}
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$this->mInterwikiLinks[$prefix][$title->getDBkey()] = 1;
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}
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/**
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* Add some text to the <head>.
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* If $tag is set, the section with that tag will only be included once
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* in a given page.
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*/
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function addHeadItem( $section, $tag = false ) {
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if ( $tag !== false ) {
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$this->mHeadItems[$tag] = $section;
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} else {
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$this->mHeadItems[] = $section;
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}
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}
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/**
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* Override the title to be used for display
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* -- this is assumed to have been validated
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* (check equal normalisation, etc.)
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*
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* @param $text String: desired title text
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*/
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public function setDisplayTitle( $text ) {
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$this->setTitleText( $text );
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$this->setProperty( 'displaytitle', $text );
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}
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/**
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* Get the title to be used for display
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*
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* @return String
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*/
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public function getDisplayTitle() {
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$t = $this->getTitleText( );
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if( $t === '' ) {
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return false;
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}
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return $t;
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}
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/**
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* Fairly generic flag setter thingy.
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*/
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public function setFlag( $flag ) {
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$this->mFlags[$flag] = true;
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}
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public function getFlag( $flag ) {
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return isset( $this->mFlags[$flag] );
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}
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/**
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* Set a property to be cached in the DB
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*/
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public function setProperty( $name, $value ) {
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$this->mProperties[$name] = $value;
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}
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public function getProperty( $name ){
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return isset( $this->mProperties[$name] ) ? $this->mProperties[$name] : false;
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}
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public function getProperties() {
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if ( !isset( $this->mProperties ) ) {
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$this->mProperties = array();
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}
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return $this->mProperties;
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}
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}
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