wiki.techinc.nl/includes/parser/ParserOptions.php
Daniel Friesen 969561ae3c Try to output editsection markers instead of rendered editsection links and defer the rendering to a point where the markup does not need to be stored in the cache.
Doing this allows skins to override doEditSectionLinks without poluting the parser cache or fragmenting the parser cache more.
As a side effect it eliminates the primary cause of user language based parser cache fragmentation.
Because this makes most old parser cache entries invalid $wgUseEditSectionTokens is provided so that large installations like Wikipedia can keep their old parser cache entries.
2011-01-03 20:17:20 +00:00

332 lines
14 KiB
PHP

<?php
/**
* Options for the PHP parser
*
* @file
* @ingroup Parser
*/
/**
* Set options of the Parser
* @todo document
* @ingroup Parser
*/
class ParserOptions {
# All variables are supposed to be private in theory, although in practise this is not the case.
var $mUseDynamicDates; # Use DateFormatter to format dates
var $mInterwikiMagic; # Interlanguage links are removed and returned in an array
var $mAllowExternalImages; # Allow external images inline
var $mAllowExternalImagesFrom; # If not, any exception?
var $mEnableImageWhitelist; # If not or it doesn't match, should we check an on-wiki whitelist?
var $mSkin = null; # Reference to the preferred skin
var $mDateFormat = null; # Date format index
var $mEditSection = true; # Create "edit section" links
var $mEditSectionTokens = false; # Output replaceable tokens for editsections instead of markup
var $mAllowSpecialInclusion; # Allow inclusion of special pages
var $mTidy = false; # Ask for tidy cleanup
var $mInterfaceMessage = false; # Which lang to call for PLURAL and GRAMMAR
var $mTargetLanguage = null; # Overrides above setting with arbitrary language
var $mMaxIncludeSize; # Maximum size of template expansions, in bytes
var $mMaxPPNodeCount; # Maximum number of nodes touched by PPFrame::expand()
var $mMaxPPExpandDepth; # Maximum recursion depth in PPFrame::expand()
var $mMaxTemplateDepth; # Maximum recursion depth for templates within templates
var $mRemoveComments = true; # Remove HTML comments. ONLY APPLIES TO PREPROCESS OPERATIONS
var $mTemplateCallback = # Callback for template fetching
array( 'Parser', 'statelessFetchTemplate' );
var $mEnableLimitReport = false; # Enable limit report in an HTML comment on output
var $mTimestamp; # Timestamp used for {{CURRENTDAY}} etc.
var $mExternalLinkTarget; # Target attribute for external links
var $mCleanSignatures; #
var $mNumberHeadings; # Automatically number headings
var $mMath; # User math preference (as integer)
var $mThumbSize; # Thumb size preferred by the user.
var $mUserLang; # Language code of the User language.
var $mUser; # Stored user object
var $mIsPreview = false; # Parsing the page for a "preview" operation
var $mIsSectionPreview = false; # Parsing the page for a "preview" operation on a single section
var $mIsPrintable = false; # Parsing the printable version of the page
var $mExtraKey = ''; # Extra key that should be present in the caching key.
protected $onAccessCallback = null;
function getUseDynamicDates() { return $this->mUseDynamicDates; }
function getInterwikiMagic() { return $this->mInterwikiMagic; }
function getAllowExternalImages() { return $this->mAllowExternalImages; }
function getAllowExternalImagesFrom() { return $this->mAllowExternalImagesFrom; }
function getEnableImageWhitelist() { return $this->mEnableImageWhitelist; }
function getEditSection() { $this->optionUsed('editsection');
return $this->mEditSection; }
function getEditSectionTokens() { $this->optionUsed('editsectiontokens');
return $this->mEditSectionTokens; }
function getNumberHeadings() { $this->optionUsed('numberheadings');
return $this->mNumberHeadings; }
function getAllowSpecialInclusion() { return $this->mAllowSpecialInclusion; }
function getTidy() { return $this->mTidy; }
function getInterfaceMessage() { return $this->mInterfaceMessage; }
function getTargetLanguage() { return $this->mTargetLanguage; }
function getMaxIncludeSize() { return $this->mMaxIncludeSize; }
function getMaxPPNodeCount() { return $this->mMaxPPNodeCount; }
function getMaxPPExpandDepth() { return $this->mMaxPPExpandDepth; }
function getMaxTemplateDepth() { return $this->mMaxTemplateDepth; }
function getRemoveComments() { return $this->mRemoveComments; }
function getTemplateCallback() { return $this->mTemplateCallback; }
function getEnableLimitReport() { return $this->mEnableLimitReport; }
function getCleanSignatures() { return $this->mCleanSignatures; }
function getExternalLinkTarget() { return $this->mExternalLinkTarget; }
function getMath() { $this->optionUsed('math');
return $this->mMath; }
function getThumbSize() { $this->optionUsed('thumbsize');
return $this->mThumbSize; }
function getIsPreview() { return $this->mIsPreview; }
function getIsSectionPreview() { return $this->mIsSectionPreview; }
function getIsPrintable() { $this->optionUsed('printable');
return $this->mIsPrintable; }
function getUser() { return $this->mUser; }
function getSkin( $title = null ) {
if ( !isset( $this->mSkin ) ) {
$this->mSkin = $this->mUser->getSkin( $title );
}
return $this->mSkin;
}
function getDateFormat() {
$this->optionUsed('dateformat');
if ( !isset( $this->mDateFormat ) ) {
$this->mDateFormat = $this->mUser->getDatePreference();
}
return $this->mDateFormat;
}
function getTimestamp() {
if ( !isset( $this->mTimestamp ) ) {
$this->mTimestamp = wfTimestampNow();
}
return $this->mTimestamp;
}
/**
* You shouldn't use this. Really. $parser->getFunctionLang() is all you need.
* Using this fragments the cache and is discouraged. Yes, {{int: }} uses this,
* producing inconsistent tables (Bug 14404).
*/
function getUserLang() {
$this->optionUsed('userlang');
return $this->mUserLang;
}
function setUseDynamicDates( $x ) { return wfSetVar( $this->mUseDynamicDates, $x ); }
function setInterwikiMagic( $x ) { return wfSetVar( $this->mInterwikiMagic, $x ); }
function setAllowExternalImages( $x ) { return wfSetVar( $this->mAllowExternalImages, $x ); }
function setAllowExternalImagesFrom( $x ) { return wfSetVar( $this->mAllowExternalImagesFrom, $x ); }
function setEnableImageWhitelist( $x ) { return wfSetVar( $this->mEnableImageWhitelist, $x ); }
function setDateFormat( $x ) { return wfSetVar( $this->mDateFormat, $x ); }
function setEditSection( $x ) { return wfSetVar( $this->mEditSection, $x ); }
function setEditSectionTokens( $x ) { return wfSetVar( $this->mEditSectionTokens, $x ); }
function setNumberHeadings( $x ) { return wfSetVar( $this->mNumberHeadings, $x ); }
function setAllowSpecialInclusion( $x ) { return wfSetVar( $this->mAllowSpecialInclusion, $x ); }
function setTidy( $x ) { return wfSetVar( $this->mTidy, $x); }
function setSkin( $x ) { $this->mSkin = $x; }
function setInterfaceMessage( $x ) { return wfSetVar( $this->mInterfaceMessage, $x); }
function setTargetLanguage( $x ) { return wfSetVar( $this->mTargetLanguage, $x); }
function setMaxIncludeSize( $x ) { return wfSetVar( $this->mMaxIncludeSize, $x ); }
function setMaxPPNodeCount( $x ) { return wfSetVar( $this->mMaxPPNodeCount, $x ); }
function setMaxTemplateDepth( $x ) { return wfSetVar( $this->mMaxTemplateDepth, $x ); }
function setRemoveComments( $x ) { return wfSetVar( $this->mRemoveComments, $x ); }
function setTemplateCallback( $x ) { return wfSetVar( $this->mTemplateCallback, $x ); }
function enableLimitReport( $x = true ) { return wfSetVar( $this->mEnableLimitReport, $x ); }
function setTimestamp( $x ) { return wfSetVar( $this->mTimestamp, $x ); }
function setCleanSignatures( $x ) { return wfSetVar( $this->mCleanSignatures, $x ); }
function setExternalLinkTarget( $x ) { return wfSetVar( $this->mExternalLinkTarget, $x ); }
function setMath( $x ) { return wfSetVar( $this->mMath, $x ); }
function setUserLang( $x ) { return wfSetVar( $this->mUserLang, $x ); }
function setThumbSize( $x ) { return wfSetVar( $this->mThumbSize, $x ); }
function setIsPreview( $x ) { return wfSetVar( $this->mIsPreview, $x ); }
function setIsSectionPreview( $x ) { return wfSetVar( $this->mIsSectionPreview, $x ); }
function setIsPrintable( $x ) { return wfSetVar( $this->mIsPrintable, $x ); }
/**
* Extra key that should be present in the parser cache key.
*/
function addExtraKey( $key ) {
$this->mExtraKey .= '!' . $key;
}
function __construct( $user = null ) {
$this->initialiseFromUser( $user );
}
/**
* Get parser options
*
* @param $user User object
* @return ParserOptions object
*/
static function newFromUser( $user ) {
return new ParserOptions( $user );
}
/** Get user options */
function initialiseFromUser( $userInput ) {
global $wgUseDynamicDates, $wgInterwikiMagic, $wgAllowExternalImages;
global $wgAllowExternalImagesFrom, $wgEnableImageWhitelist, $wgAllowSpecialInclusion, $wgMaxArticleSize;
global $wgMaxPPNodeCount, $wgMaxTemplateDepth, $wgMaxPPExpandDepth, $wgCleanSignatures, $wgUseEditSectionTokens;
global $wgExternalLinkTarget, $wgLang;
wfProfileIn( __METHOD__ );
if ( !$userInput ) {
global $wgUser;
if ( isset( $wgUser ) ) {
$user = $wgUser;
} else {
$user = new User;
}
} else {
$user =& $userInput;
}
$this->mUser = $user;
$this->mUseDynamicDates = $wgUseDynamicDates;
$this->mInterwikiMagic = $wgInterwikiMagic;
$this->mAllowExternalImages = $wgAllowExternalImages;
$this->mAllowExternalImagesFrom = $wgAllowExternalImagesFrom;
$this->mEnableImageWhitelist = $wgEnableImageWhitelist;
$this->mAllowSpecialInclusion = $wgAllowSpecialInclusion;
$this->mMaxIncludeSize = $wgMaxArticleSize * 1024;
$this->mMaxPPNodeCount = $wgMaxPPNodeCount;
$this->mMaxPPExpandDepth = $wgMaxPPExpandDepth;
$this->mMaxTemplateDepth = $wgMaxTemplateDepth;
$this->mCleanSignatures = $wgCleanSignatures;
$this->mExternalLinkTarget = $wgExternalLinkTarget;
$this->mEditSectionTokens = $wgUseEditSectionTokens;
$this->mNumberHeadings = $user->getOption( 'numberheadings' );
$this->mMath = $user->getOption( 'math' );
$this->mThumbSize = $user->getOption( 'thumbsize' );
$this->mUserLang = $wgLang->getCode();
wfProfileOut( __METHOD__ );
}
/**
* Registers a callback for tracking which ParserOptions which are used.
* This is a private API with the parser.
*/
function registerWatcher( $callback ) {
$this->onAccessCallback = $callback;
}
/**
* Called when an option is accessed.
*/
protected function optionUsed( $optionName ) {
if ( $this->onAccessCallback ) {
call_user_func( $this->onAccessCallback, $optionName );
}
}
/**
* Returns the full array of options that would have been used by
* in 1.16.
* Used to get the old parser cache entries when available.
*/
public static function legacyOptions() {
global $wgUseDynamicDates;
$legacyOpts = array( 'math', 'stubthreshold', 'numberheadings', 'userlang', 'thumbsize', 'editsection', 'printable' );
if ( $wgUseDynamicDates ) {
$legacyOpts[] = 'dateformat';
}
return $legacyOpts;
}
/**
* Generate a hash string with the values set on these ParserOptions
* for the keys given in the array.
* This will be used as part of the hash key for the parser cache,
* so users sharign the options with vary for the same page share
* the same cached data safely.
*
* Replaces User::getPageRenderingHash()
*
* Extensions which require it should install 'PageRenderingHash' hook,
* which will give them a chance to modify this key based on their own
* settings.
*
* @since 1.17
* @return \string Page rendering hash
*/
public function optionsHash( $forOptions ) {
global $wgContLang, $wgRenderHashAppend;
$confstr = '';
if ( in_array( 'math', $forOptions ) )
$confstr .= $this->mMath;
else
$confstr .= '*';
// Space assigned for the stubthreshold but unused
// since it disables the parser cache, its value will always
// be 0 when this function is called by parsercache.
// The conditional is here to avoid a confusing 0
if ( in_array( 'stubthreshold', $forOptions ) )
$confstr .= '!0' ;
else
$confstr .= '!*' ;
if ( in_array( 'dateformat', $forOptions ) )
$confstr .= '!' . $this->getDateFormat();
if ( in_array( 'numberheadings', $forOptions ) )
$confstr .= '!' . ( $this->mNumberHeadings ? '1' : '' );
else
$confstr .= '!*';
if ( in_array( 'userlang', $forOptions ) )
$confstr .= '!' . $this->mUserLang;
else
$confstr .= '!*';
if ( in_array( 'thumbsize', $forOptions ) )
$confstr .= '!' . $this->mThumbSize;
else
$confstr .= '!*';
// add in language specific options, if any
// FIXME: This is just a way of retrieving the url/user preferred variant
$confstr .= $wgContLang->getExtraHashOptions();
// Since the skin could be overloading link(), it should be
// included here but in practice, none of our skins do that.
// $confstr .= "!" . $this->mSkin->getSkinName();
$confstr .= $wgRenderHashAppend;
if ( !$this->mEditSection && in_array( 'editsection', $forOptions ) )
$confstr .= '!edit=0';
if ( $this->mEditSectionTokens && in_array( 'editsectiontokens', $forOptions ) )
$confstr .= '!estok=1';
if ( $this->mIsPrintable && in_array( 'printable', $forOptions ) )
$confstr .= '!printable=1';
if ( $this->mExtraKey != '' )
$confstr .= $this->mExtraKey;
// Give a chance for extensions to modify the hash, if they have
// extra options or other effects on the parser cache.
wfRunHooks( 'PageRenderingHash', array( &$confstr ) );
// Make it a valid memcached key fragment
$confstr = str_replace( ' ', '_', $confstr );
return $confstr;
}
}