*
* @package MediaWiki
*/
-class MessageCache
-{
+class MessageCache {
var $mCache, $mUseCache, $mDisable, $mExpiry;
var $mMemcKey, $mKeys, $mParserOptions, $mParser;
var $mExtensionMessages = array();
wfProfileOut( $fname );
}
+ /**
+ * Try to load the cache from a local file
+ */
+ function loadFromLocal( $hash ) {
+ global $wgLocalMessageCache, $wgDBname;
+
+ $this->mCache = false;
+ if ( $wgLocalMessageCache === false ) {
+ return;
+ }
+
+ $filename = "$wgLocalMessageCache/messages-$wgDBname";
+
+ wfSuppressWarnings();
+ $file = fopen( $filename, 'r' );
+ wfRestoreWarnings();
+ if ( !$file ) {
+ return;
+ }
+
+ // Check to see if the file has the hash specified
+ $localHash = fread( $file, 32 );
+ if ( $hash == $localHash ) {
+ // All good, get the rest of it
+ $serialized = fread( $file, 1000000 );
+ $this->mCache = unserialize( $serialized );
+ }
+ fclose( $file );
+ }
+
+ /**
+ * Save the cache to a local file
+ */
+ function saveToLocal( $serialized, $hash ) {
+ global $wgLocalMessageCache, $wgDBname;
+
+ if ( $wgLocalMessageCache === false ) {
+ return;
+ }
+
+ $filename = "$wgLocalMessageCache/messages-$wgDBname";
+ $oldUmask = umask( 0 );
+ wfMkdirParents( $wgLocalMessageCache, 0777 );
+ umask( $oldUmask );
+
+ $file = fopen( $filename, 'w' );
+ if ( !$file ) {
+ wfDebug( "Unable to open local cache file for writing\n" );
+ return;
+ }
+
+ fwrite( $file, $hash . $serialized );
+ fclose( $file );
+ @chmod( $filename, 0666 );
+ }
+
+ function loadFromScript( $hash ) {
+ global $wgLocalMessageCache, $wgDBname;
+ if ( $wgLocalMessageCache === false ) {
+ return;
+ }
+
+ $filename = "$wgLocalMessageCache/messages-$wgDBname";
+
+ wfSuppressWarnings();
+ $file = fopen( $filename, 'r' );
+ wfRestoreWarnings();
+ if ( !$file ) {
+ return;
+ }
+ $localHash=substr(fread($file,40),8);
+ fclose($file);
+ if ($hash!=$localHash) {
+ return;
+ }
+ require("$wgLocalMessageCache/messages-$wgDBname");
+ }
+
+ function saveToScript($array, $hash) {
+ global $wgLocalMessageCache, $wgDBname;
+ if ( $wgLocalMessageCache === false ) {
+ return;
+ }
+
+ $filename = "$wgLocalMessageCache/messages-$wgDBname";
+ $oldUmask = umask( 0 );
+ wfMkdirParents( $wgLocalMessageCache, 0777 );
+ umask( $oldUmask );
+ $file = fopen( $filename.'.tmp', 'w');
+ fwrite($file,"<?php\n//$hash\n\n \$this->mCache = array(");
+
+ $re="/(?<!\\\\)'/";
+ foreach ($array as $key => $message) {
+ fwrite($file, "'". preg_replace($re, "\'", $key).
+ "' => '" . preg_replace( $re, "\'", $message) . "',\n");
+ }
+ fwrite($file,");\n?>");
+ fclose($file);
+ rename($filename.'.tmp',$filename);
+ }
+
/**
* Loads messages either from memcached or the database, if not disabled
* On error, quietly switches to a fallback mode
* Returns false for a reportable error, true otherwise
*/
function load() {
- global $wgAllMessagesEn;
+ global $wgLocalMessageCache, $wgLocalMessageCacheSerialized;
if ( $this->mDisable ) {
static $shownDisabled = false;
$success = true;
if ( $this->mUseCache ) {
- wfProfileIn( $fname.'-fromcache' );
- $this->mCache = $this->mMemc->get( $this->mMemcKey );
- wfProfileOut( $fname.'-fromcache' );
+ $this->mCache = false;
+
+ # Try local cache
+ wfProfileIn( $fname.'-fromlocal' );
+ $hash = $this->mMemc->get( "{$this->mMemcKey}-hash" );
+ if ( $hash ) {
+ if ($wgLocalMessageCacheSerialized) {
+ $this->loadFromLocal( $hash );
+ } else {
+ $this->loadFromScript( $hash );
+ }
+ }
+ wfProfileOut( $fname.'-fromlocal' );
+
+ # Try memcached
+ if ( !$this->mCache ) {
+ wfProfileIn( $fname.'-fromcache' );
+ $this->mCache = $this->mMemc->get( $this->mMemcKey );
+
+ # Save to local cache
+ if ( $wgLocalMessageCache !== false ) {
+ $serialized = serialize( $this->mCache );
+ if ( !$hash ) {
+ $hash = md5( $serialized );
+ $this->mMemc->set( "{$this->mMemcKey}-hash", $hash, $this->mExpiry );
+ }
+ if ($wgLocalMessageCacheSerialized) {
+ $this->saveToLocal( $serialized,$hash );
+ } else {
+ $this->saveToScript( $this->mCache, $hash );
+ }
+ }
+ wfProfileOut( $fname.'-fromcache' );
+ }
+
# If there's nothing in memcached, load all the messages from the database
if ( !$this->mCache ) {
wfProfileIn( $fname.'-load' );
$this->loadFromDB();
wfProfileOut( $fname.'-load' );
+
# Save in memcached
# Keep trying if it fails, this is kind of important
wfProfileIn( $fname.'-save' );
$i++ ) {
usleep(mt_rand(500000,1500000));
}
+
+ # Save to local cache
+ if ( $wgLocalMessageCache !== false ) {
+ $serialized = serialize( $this->mCache );
+ $hash = md5( $serialized );
+ $this->mMemc->set( "{$this->mMemcKey}-hash", $hash, $this->mExpiry );
+ if ($wgLocalMessageCacheSerialized) {
+ $this->saveToLocal( $serialized,$hash );
+ } else {
+ $this->saveToScript( $this->mCache, $hash );
+ }
+ }
+
wfProfileOut( $fname.'-save' );
if ( $i == 20 ) {
$this->mMemc->set( $this->mMemcKey.'-status', 'error', 60*5 );
*/
function loadFromDB() {
global $wgAllMessagesEn, $wgLang;
-
+
$fname = 'MessageCache::loadFromDB';
$dbr =& wfGetDB( DB_SLAVE );
if ( !$dbr ) {
}
# Negative caching
- # Go through the language array and the extension array and make a note of
+ # Go through the language array and the extension array and make a note of
# any keys missing from the cache
foreach ( $wgAllMessagesEn as $key => $value ) {
$uckey = $wgLang->ucfirst( $key );
if ( !array_key_exists( $uckey, $this->mCache ) ) {
$this->mCache[$uckey] = false;
}
- }
+ }
$dbr->freeResult( $res );
}
}
function replace( $title, $text ) {
+ global $wgLocalMessageCache, $wgLocalMessageCacheSerialized, $parserMemc, $wgDBname;
+
$this->lock();
$this->load();
+ $parserMemc->delete("$wgDBname:sidebar");
if ( is_array( $this->mCache ) ) {
$this->mCache[$title] = $text;
$this->mMemc->set( $this->mMemcKey, $this->mCache, $this->mExpiry );
+
+ # Save to local cache
+ if ( $wgLocalMessageCache !== false ) {
+ $serialized = serialize( $this->mCache );
+ $hash = md5( $serialized );
+ $this->mMemc->set( "{$this->mMemcKey}-hash", $hash, $this->mExpiry );
+ if ($wgLocalMessageCacheSerialized) {
+ $this->saveToLocal( $serialized,$hash );
+ } else {
+ $this->saveToScript( $this->mCache, $hash );
+ }
+ }
+
+
}
$this->unlock();
}
wfSuppressWarnings();
$message = $lang->getMessage( $key );
wfRestoreWarnings();
+ if ( is_null( $message ) ) {
+ $message = false;
+ }
}
# Try the English array
wfSuppressWarnings();
$message = Language::getMessage( $key );
wfRestoreWarnings();
+ if ( is_null( $message ) ) {
+ $message = false;
+ }
}
# Is this a custom message? Try the default language in the db...
# Try individual message cache
if ( $this->mUseCache ) {
$message = $this->mMemc->get( $this->mMemcKey . ':' . $title );
- if( !is_null( $message ) ) {
+ if ( $message == '###NONEXISTENT###' ) {
+ return false;
+ } elseif( !is_null( $message ) ) {
$this->mCache[$title] = $message;
return $message;
} else {
}
}
+ # Call message Hooks, in case they are defined
+ wfRunHooks('MessagesPreLoad',array($title,&$message));
+
# If it wasn't in the cache, load each message from the DB individually
$revision = Revision::newFromTitle( Title::makeTitle( NS_MEDIAWIKI, $title ) );
if( $revision ) {
}
} else {
# Negative caching
- $this->mMemc->set( $this->mMemcKey . ':' . $title, false, $this->mExpiry );
+ # Use some special text instead of false, because false gets converted to '' somewhere
+ $this->mMemc->set( $this->mMemcKey . ':' . $title, '###NONEXISTENT###', $this->mExpiry );
}
return $message;
function enable() { $this->mDisable = false; }
function disableTransform() { $this->mDisableTransform = true; }
function enableTransform() { $this->mDisableTransform = false; }
+ function setTransform( $x ) { $this->mDisableTransform = $x; }
+ function getTransform() { return $this->mDisableTransform; }
/**
* Add a message to the cache
dépôts / lhc / web / wiklou.git / blobdiff