64 lines
1.6 KiB
PHP
64 lines
1.6 KiB
PHP
<?php
|
|
|
|
class ParserCache
|
|
{
|
|
function getKey( &$article, &$user ) {
|
|
global $wgDBname;
|
|
$hash = $user->getPageRenderingHash();
|
|
$pageid = intval( $article->getID() );
|
|
$key = "$wgDBname:pcache:idhash:$pageid-$hash";
|
|
return $key;
|
|
}
|
|
|
|
function get( &$article, &$user ) {
|
|
global $wgMemc, $wgCacheEpoch;
|
|
$fname = "ParserCache::get";
|
|
wfProfileIn( $fname );
|
|
|
|
$hash = $user->getPageRenderingHash();
|
|
$pageid = intval( $article->getID() );
|
|
$key = $this->getKey( $article, $user );
|
|
wfDebug( "Trying parser cache $key\n" );
|
|
$value = $wgMemc->get( $key );
|
|
if ( $value ) {
|
|
wfDebug( "Found.\n" );
|
|
# Delete if article has changed since the cache was made
|
|
$canCache = $article->checkTouched();
|
|
$cacheTime = $value->getCacheTime();
|
|
if ( !$canCache || $value->getCacheTime() <= $touched || $cacheTime < $wgCacheEpoch ) {
|
|
if ( !$canCache ) {
|
|
wfDebug( "Invalid cached redirect, touched $touched, epoch $wgCacheEpoch, cached $cacheTime\n" );
|
|
} else {
|
|
wfDebug( "Key expired, touched $touched, epoch $wgCacheEpoch, cached $cacheTime\n" );
|
|
}
|
|
$wgMemc->delete( $key );
|
|
$value = false;
|
|
}
|
|
} else {
|
|
$value = false;
|
|
}
|
|
|
|
wfProfileOut( $fname );
|
|
return $value;
|
|
}
|
|
|
|
function save( $parserOutput, &$article, &$user ){
|
|
global $wgMemc;
|
|
|
|
$key = $this->getKey( $article, $user );
|
|
$now = wfTimestampNow();
|
|
$parserOutput->setCacheTime( $now );
|
|
$parserOutput->mText .= "\n<!-- Saved in parser cache with key $key and timestamp $now -->\n";
|
|
|
|
if( $parserOutput->containsOldMagic() ){
|
|
$expire = 3600; # 1 hour
|
|
} else {
|
|
$expire = 86400; # 1 day
|
|
}
|
|
|
|
$wgMemc->set( $key, $parserOutput, $expire );
|
|
}
|
|
}
|
|
|
|
|
|
?>
|