function __construct($key, $archive = 0)
{
$this->app = F::app();
switch ($key) {
case 'edit':
$this->mKey = self::EDIT_CATEGORY;
$this->mEventType = self::EDIT_CATEGORY_INT;
break;
case 'create':
$this->mKey = self::CREATEPAGE_CATEGORY;
$this->mEventType = self::CREATEPAGE_CATEGORY_INT;
break;
case 'delete':
$this->mKey = self::DELETE_CATEGORY;
$this->mEventType = self::DELETE_CATEGORY_INT;
break;
case 'undelete':
$this->mKey = self::UNDELETE_CATEGORY;
$this->mEventType = self::UNDELETE_CATEGORY_INT;
break;
}
$this->setCityId($this->app->wg->CityId);
$this->setServerName($this->app->wg->Server);
$this->setIp($this->app->wg->Request->getIP());
$this->setHostname(wfHostname());
$this->setBeaconId(wfGetBeaconId());
$this->setArchive($archive);
$this->setLanguage();
$this->setCategory();
}
public function log(array $stats)
{
$pfhost = $this->perHost ? wfHostname() : '';
try {
$dbw = wfGetDB(DB_MASTER);
$useTrx = $dbw->getType() === 'sqlite';
// much faster
if ($useTrx) {
$dbw->startAtomic(__METHOD__);
}
foreach ($stats as $data) {
$name = $data['name'];
$eventCount = $data['calls'];
$timeSum = (double) $data['real'];
$memorySum = (double) $data['memory'];
$name = substr($name, 0, 255);
// Kludge
$timeSum = $timeSum >= 0 ? $timeSum : 0;
$memorySum = $memorySum >= 0 ? $memorySum : 0;
$dbw->upsert('profiling', array('pf_name' => $name, 'pf_count' => $eventCount, 'pf_time' => $timeSum, 'pf_memory' => $memorySum, 'pf_server' => $pfhost), array(array('pf_name', 'pf_server')), array("pf_count=pf_count+{$eventCount}", "pf_time=pf_time+{$timeSum}", "pf_memory=pf_memory+{$memorySum}"), __METHOD__);
}
if ($useTrx) {
$dbw->endAtomic(__METHOD__);
}
} catch (DBError $e) {
}
}
function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0)
{
global $wgSVGConverters, $wgSVGConverter, $wgSVGConverterPath;
if (!$this->normaliseParams($image, $params)) {
return new TransformParameterError($params);
}
$clientWidth = $params['width'];
$clientHeight = $params['height'];
$physicalWidth = $params['physicalWidth'];
$physicalHeight = $params['physicalHeight'];
$srcPath = $image->getPath();
if ($flags & self::TRANSFORM_LATER) {
return new ThumbnailImage($image, $dstUrl, $clientWidth, $clientHeight, $dstPath);
}
if (!wfMkdirParents(dirname($dstPath))) {
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, wfMsg('thumbnail_dest_directory'));
}
$err = false;
if (isset($wgSVGConverters[$wgSVGConverter])) {
$cmd = str_replace(array('$path/', '$width', '$height', '$input', '$output'), array($wgSVGConverterPath ? wfEscapeShellArg("{$wgSVGConverterPath}/") : "", intval($physicalWidth), intval($physicalHeight), wfEscapeShellArg($srcPath), wfEscapeShellArg($dstPath)), $wgSVGConverters[$wgSVGConverter]) . " 2>&1";
wfProfileIn('rsvg');
wfDebug(__METHOD__ . ": {$cmd}\n");
$err = wfShellExec($cmd, $retval);
wfProfileOut('rsvg');
}
$removed = $this->removeBadFile($dstPath, $retval);
if ($retval != 0 || $removed) {
wfDebugLog('thumbnail', sprintf('thumbnail failed on %s: error %d "%s" from "%s"', wfHostname(), $retval, trim($err), $cmd));
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, $err);
} else {
return new ThumbnailImage($image, $dstUrl, $clientWidth, $clientHeight, $dstPath);
}
}
function logToFile($msg, $file)
{
$header = '[' . date('d\\TH:i:s') . '] ' . wfHostname() . ' ' . posix_getpid();
if ($this->slaveId !== false) {
$header .= "({$this->slaveId})";
}
$header .= ' ' . wfWikiID();
wfErrorLog(sprintf("%-50s %s\n", $header, $msg), $file);
}
/**
* @param array $lbConf Config for LBFactory::__construct()
* @param Config $mainConfig Main config object from MediaWikiServices
* @return array
*/
public static function applyDefaultConfig(array $lbConf, Config $mainConfig)
{
global $wgCommandLineMode;
$lbConf += ['localDomain' => new DatabaseDomain($mainConfig->get('DBname'), null, $mainConfig->get('DBprefix')), 'profiler' => Profiler::instance(), 'trxProfiler' => Profiler::instance()->getTransactionProfiler(), 'replLogger' => LoggerFactory::getInstance('DBReplication'), 'queryLogger' => LoggerFactory::getInstance('DBQuery'), 'connLogger' => LoggerFactory::getInstance('DBConnection'), 'perfLogger' => LoggerFactory::getInstance('DBPerformance'), 'errorLogger' => [MWExceptionHandler::class, 'logException'], 'cliMode' => $wgCommandLineMode, 'hostname' => wfHostname(), 'readOnlyReason' => wfConfiguredReadOnlyReason()];
if ($lbConf['class'] === 'LBFactorySimple') {
if (isset($lbConf['servers'])) {
// Server array is already explicitly configured; leave alone
} elseif (is_array($mainConfig->get('DBservers'))) {
foreach ($mainConfig->get('DBservers') as $i => $server) {
if ($server['type'] === 'sqlite') {
$server += ['dbDirectory' => $mainConfig->get('SQLiteDataDir')];
} elseif ($server['type'] === 'postgres') {
$server += ['port' => $mainConfig->get('DBport')];
}
$lbConf['servers'][$i] = $server + ['schema' => $mainConfig->get('DBmwschema'), 'tablePrefix' => $mainConfig->get('DBprefix'), 'flags' => DBO_DEFAULT, 'sqlMode' => $mainConfig->get('SQLMode'), 'utf8Mode' => $mainConfig->get('DBmysql5')];
}
} else {
$flags = DBO_DEFAULT;
$flags |= $mainConfig->get('DebugDumpSql') ? DBO_DEBUG : 0;
$flags |= $mainConfig->get('DBssl') ? DBO_SSL : 0;
$flags |= $mainConfig->get('DBcompress') ? DBO_COMPRESS : 0;
$server = ['host' => $mainConfig->get('DBserver'), 'user' => $mainConfig->get('DBuser'), 'password' => $mainConfig->get('DBpassword'), 'dbname' => $mainConfig->get('DBname'), 'schema' => $mainConfig->get('DBmwschema'), 'tablePrefix' => $mainConfig->get('DBprefix'), 'type' => $mainConfig->get('DBtype'), 'load' => 1, 'flags' => $flags, 'sqlMode' => $mainConfig->get('SQLMode'), 'utf8Mode' => $mainConfig->get('DBmysql5')];
if ($server['type'] === 'sqlite') {
$server['dbDirectory'] = $mainConfig->get('SQLiteDataDir');
} elseif ($server['type'] === 'postgres') {
$server['port'] = $mainConfig->get('DBport');
}
$lbConf['servers'] = [$server];
}
if (!isset($lbConf['externalClusters'])) {
$lbConf['externalClusters'] = $mainConfig->get('ExternalServers');
}
} elseif ($lbConf['class'] === 'LBFactoryMulti') {
if (isset($lbConf['serverTemplate'])) {
$lbConf['serverTemplate']['schema'] = $mainConfig->get('DBmwschema');
$lbConf['serverTemplate']['sqlMode'] = $mainConfig->get('SQLMode');
$lbConf['serverTemplate']['utf8Mode'] = $mainConfig->get('DBmysql5');
}
}
// Use APC/memcached style caching, but avoids loops with CACHE_DB (T141804)
$sCache = MediaWikiServices::getInstance()->getLocalServerObjectCache();
if ($sCache->getQoS($sCache::ATTR_EMULATION) > $sCache::QOS_EMULATION_SQL) {
$lbConf['srvCache'] = $sCache;
}
$cCache = ObjectCache::getLocalClusterInstance();
if ($cCache->getQoS($cCache::ATTR_EMULATION) > $cCache::QOS_EMULATION_SQL) {
$lbConf['memCache'] = $cCache;
}
$wCache = MediaWikiServices::getInstance()->getMainWANObjectCache();
if ($wCache->getQoS($wCache::ATTR_EMULATION) > $wCache::QOS_EMULATION_SQL) {
$lbConf['wanCache'] = $wCache;
}
return $lbConf;
}
/**
* storeData -- push data frame to Stomp
*
* @param String $type
* @author Piotr Molski (MoLi)
* @access private
*
*/
private function send_log()
{
wfProfileIn(__METHOD__);
try {
$data = json_encode(array('cityId' => $this->mCityId, 'pageId' => $this->mPageId, 'revId' => $this->mRevId, 'logId' => $this->mLogId, 'serverName' => $this->mServerName, 'archive' => $this->mArchive, 'hostname' => wfHostname(), 'beaconId' => wfGetBeaconId()));
WScribeClient::singleton($this->mKey)->send($data);
} catch (TException $e) {
Wikia::log(__METHOD__, 'scribeClient exception', $e->getMessage());
}
wfProfileOut(__METHOD__);
}
/**
* Returns TransactionTrace singleton instance
*
* @return TransactionTrace
*/
public static function getInstance()
{
static $instance;
if ($instance === null) {
global $wgWikiaEnvironment;
$instance = new TransactionTrace(array(new TransactionTraceNewrelic(), new TransactionTraceScribe()));
$instance->set(self::PARAM_ENVIRONMENT, $wgWikiaEnvironment);
$instance->set(self::PARAM_HOSTNAME, wfHostname());
$instance->set(self::PARAM_PHP_VERSION, explode('-', phpversion())[0]);
// report "5.4.17-1~precise+1" as "5.4.17"
}
return $instance;
}
/**
* Log the whole profiling data into the database.
*/
public function logData()
{
global $wgProfilePerHost;
# Do not log anything if database is readonly (bug 5375)
if (wfReadOnly()) {
return;
}
if ($wgProfilePerHost) {
$pfhost = wfHostname();
} else {
$pfhost = '';
}
try {
$this->collateData();
$dbw = wfGetDB(DB_MASTER);
$useTrx = $dbw->getType() === 'sqlite';
// much faster
if ($useTrx) {
$dbw->begin();
}
foreach ($this->mCollated as $name => $data) {
$eventCount = $data['count'];
$timeSum = (double) ($data['real'] * 1000);
$memorySum = (double) $data['memory'];
$name = substr($name, 0, 255);
// Kludge
$timeSum = $timeSum >= 0 ? $timeSum : 0;
$memorySum = $memorySum >= 0 ? $memorySum : 0;
$dbw->update('profiling', array("pf_count=pf_count+{$eventCount}", "pf_time=pf_time+{$timeSum}", "pf_memory=pf_memory+{$memorySum}"), array('pf_name' => $name, 'pf_server' => $pfhost), __METHOD__);
$rc = $dbw->affectedRows();
if ($rc == 0) {
$dbw->insert('profiling', array('pf_name' => $name, 'pf_count' => $eventCount, 'pf_time' => $timeSum, 'pf_memory' => $memorySum, 'pf_server' => $pfhost), __METHOD__, array('IGNORE'));
}
// When we upgrade to mysql 4.1, the insert+update
// can be merged into just a insert with this construct added:
// "ON DUPLICATE KEY UPDATE ".
// "pf_count=pf_count + VALUES(pf_count), ".
// "pf_time=pf_time + VALUES(pf_time)";
}
if ($useTrx) {
$dbw->commit();
}
} catch (DBError $e) {
}
}
function wfCheckPAD($url, $pad)
{
global $wgServer, $wgTitle, $wgCookieDomain;
if ($wgServer == "http://testers.wikihow.com") {
return true;
}
if (($wgServer == "http://www.wikihow.com" || strpos(wfHostname(), "wikihow.com") !== false) && strpos($pad, "whstatic") === false) {
$alerts = new MailAddress("*****@*****.**");
// format of date to correspond to varnish file 04/Dec/2010:07:19:06 -0800
$now = date("d/M/Y:h:i:s O");
$subject = "Not using PAD for thumbnail on " . wfHostname() . " - " . $now;
$body = "article {$wgTitle->getFullURL()}\n\n\nUrl: {$url} \n\n \npad {$pad} \n\n\nserver variables " . print_r($_SERVER, true) . "\n\n allheaders: " . print_r(getallheaders(), true) . "\n\n wgserver {$wgServer}\n\ncookie domain {$wgCookieDomain}\n\n Title " . print_r($wgTitle, true) . "\n\nbacktrace: " . strip_tags(wfBacktrace());
UserMailer::send($alerts, $alerts, $subject, $body, $alerts);
error_log($body);
wfDebug($body);
}
return true;
}
/** */
function wfStreamFile($fname, $headers = array())
{
$stat = @stat($fname);
if (!$stat) {
header('HTTP/1.0 404 Not Found');
header('Cache-Control: no-cache');
header('Content-Type: text/html; charset=utf-8');
$encFile = htmlspecialchars($fname);
$encScript = htmlspecialchars($_SERVER['SCRIPT_NAME']);
echo "<html><body>\n<h1>File not found</h1>\n<p>Although this PHP script ({$encScript}) exists, the file requested for output \n({$encFile}) does not.</p>\n</body></html>\n";
return;
}
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $stat['mtime']) . ' GMT');
// Cancel output buffering and gzipping if set
wfResetOutputBuffers();
$type = wfGetType($fname);
if ($type and $type != "unknown/unknown") {
header("Content-type: {$type}");
} else {
header('Content-type: application/x-wiki');
}
global $wgContLanguageCode;
header("Content-Disposition: inline;filename*=utf-8'{$wgContLanguageCode}'" . urlencode(basename($fname)));
foreach ($headers as $header) {
header($header);
}
if (!empty($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
$modsince = preg_replace('/;.*$/', '', $_SERVER['HTTP_IF_MODIFIED_SINCE']);
$sinceTime = strtotime($modsince);
if ($stat['mtime'] <= $sinceTime) {
header("HTTP/1.0 304 Not Modified");
return;
}
}
$h = "";
foreach ($stat as $k => $v) {
$h .= "{$k}={$v},";
}
header('Content-Length: ' . $stat['size']);
header('X-stat-results: ' . $h);
header('X-Serving-host: ' . wfHostname());
header('Content-Length-true: ' . $stat['size']);
readfile($fname);
}
/**
* Convert wikitext to HTML
* Do not call this function recursively.
*
* @param string $text text we want to parse
* @param $title Title object
* @param $options ParserOptions
* @param $linestart boolean
* @param $clearState boolean
* @param int $revid number to pass in {{REVISIONID}}
* @return ParserOutput a ParserOutput
*/
public function parse($text, Title $title, ParserOptions $options, $linestart = true, $clearState = true, $revid = null)
{
/**
* First pass--just handle <nowiki> sections, pass the rest off
* to internalParse() which does all the real work.
*/
global $wgUseTidy, $wgAlwaysUseTidy, $wgShowHostnames;
$fname = __METHOD__ . '-' . wfGetCaller();
wfProfileIn(__METHOD__);
wfProfileIn($fname);
$this->startParse($title, $options, self::OT_HTML, $clearState);
$this->mInputSize = strlen($text);
if ($this->mOptions->getEnableLimitReport()) {
$this->mOutput->resetParseStartTime();
}
# Remove the strip marker tag prefix from the input, if present.
if ($clearState) {
$text = str_replace($this->mUniqPrefix, '', $text);
}
$oldRevisionId = $this->mRevisionId;
$oldRevisionObject = $this->mRevisionObject;
$oldRevisionTimestamp = $this->mRevisionTimestamp;
$oldRevisionUser = $this->mRevisionUser;
$oldRevisionSize = $this->mRevisionSize;
if ($revid !== null) {
$this->mRevisionId = $revid;
$this->mRevisionObject = null;
$this->mRevisionTimestamp = null;
$this->mRevisionUser = null;
$this->mRevisionSize = null;
}
wfRunHooks('ParserBeforeStrip', array(&$this, &$text, &$this->mStripState));
# No more strip!
wfRunHooks('ParserAfterStrip', array(&$this, &$text, &$this->mStripState));
$text = $this->internalParse($text);
wfRunHooks('ParserAfterParse', array(&$this, &$text, &$this->mStripState));
$text = $this->mStripState->unstripGeneral($text);
# Clean up special characters, only run once, next-to-last before doBlockLevels
$fixtags = array('/(.) (?=\\?|:|;|!|%|\\302\\273)/' => '\\1 ', '/(\\302\\253) /' => '\\1 ', '/ (!\\s*important)/' => ' \\1');
$text = preg_replace(array_keys($fixtags), array_values($fixtags), $text);
$text = $this->doBlockLevels($text, $linestart);
$this->replaceLinkHolders($text);
/**
* The input doesn't get language converted if
* a) It's disabled
* b) Content isn't converted
* c) It's a conversion table
* d) it is an interface message (which is in the user language)
*/
if (!($options->getDisableContentConversion() || isset($this->mDoubleUnderscores['nocontentconvert']))) {
if (!$this->mOptions->getInterfaceMessage()) {
# The position of the convert() call should not be changed. it
# assumes that the links are all replaced and the only thing left
# is the <nowiki> mark.
$text = $this->getConverterLanguage()->convert($text);
}
}
/**
* A converted title will be provided in the output object if title and
* content conversion are enabled, the article text does not contain
* a conversion-suppressing double-underscore tag, and no
* {{DISPLAYTITLE:...}} is present. DISPLAYTITLE takes precedence over
* automatic link conversion.
*/
if (!($options->getDisableTitleConversion() || isset($this->mDoubleUnderscores['nocontentconvert']) || isset($this->mDoubleUnderscores['notitleconvert']) || $this->mOutput->getDisplayTitle() !== false)) {
$convruletitle = $this->getConverterLanguage()->getConvRuleTitle();
if ($convruletitle) {
$this->mOutput->setTitleText($convruletitle);
} else {
$titleText = $this->getConverterLanguage()->convertTitle($title);
$this->mOutput->setTitleText($titleText);
}
}
$text = $this->mStripState->unstripNoWiki($text);
wfRunHooks('ParserBeforeTidy', array(&$this, &$text));
$text = $this->replaceTransparentTags($text);
$text = $this->mStripState->unstripGeneral($text);
$text = Sanitizer::normalizeCharReferences($text);
if ($wgUseTidy && $this->mOptions->getTidy() || $wgAlwaysUseTidy) {
$text = MWTidy::tidy($text);
} else {
# attempt to sanitize at least some nesting problems
# (bug #2702 and quite a few others)
$tidyregs = array('/(<([bi])>)(<([bi])>)?([^<]*)(<\\/?a[^<]*>)([^<]*)(<\\/\\4>)?(<\\/\\2>)/' => '\\1\\3\\5\\8\\9\\6\\1\\3\\7\\8\\9', '/(<a[^>]+>)([^<]*)(<a[^>]+>[^<]*)<\\/a>(.*)<\\/a>/' => '\\1\\2</a>\\3</a>\\1\\4</a>', '/(<([aib]) [^>]+>)([^<]*)(<div([^>]*)>)(.*)(<\\/div>)([^<]*)(<\\/\\2>)/' => '\\1\\3<div\\5>\\6</div>\\8\\9', '/<([bi])><\\/\\1>/' => '');
$text = preg_replace(array_keys($tidyregs), array_values($tidyregs), $text);
}
if ($this->mExpensiveFunctionCount > $this->mOptions->getExpensiveParserFunctionLimit()) {
$this->limitationWarn('expensive-parserfunction', $this->mExpensiveFunctionCount, $this->mOptions->getExpensiveParserFunctionLimit());
}
wfRunHooks('ParserAfterTidy', array(&$this, &$text));
# Information on include size limits, for the benefit of users who try to skirt them
if ($this->mOptions->getEnableLimitReport()) {
$max = $this->mOptions->getMaxIncludeSize();
$cpuTime = $this->mOutput->getTimeSinceStart('cpu');
if ($cpuTime !== null) {
$this->mOutput->setLimitReportData('limitreport-cputime', sprintf("%.3f", $cpuTime));
}
$wallTime = $this->mOutput->getTimeSinceStart('wall');
$this->mOutput->setLimitReportData('limitreport-walltime', sprintf("%.3f", $wallTime));
$this->mOutput->setLimitReportData('limitreport-ppvisitednodes', array($this->mPPNodeCount, $this->mOptions->getMaxPPNodeCount()));
$this->mOutput->setLimitReportData('limitreport-ppgeneratednodes', array($this->mGeneratedPPNodeCount, $this->mOptions->getMaxGeneratedPPNodeCount()));
$this->mOutput->setLimitReportData('limitreport-postexpandincludesize', array($this->mIncludeSizes['post-expand'], $max));
$this->mOutput->setLimitReportData('limitreport-templateargumentsize', array($this->mIncludeSizes['arg'], $max));
$this->mOutput->setLimitReportData('limitreport-expansiondepth', array($this->mHighestExpansionDepth, $this->mOptions->getMaxPPExpandDepth()));
$this->mOutput->setLimitReportData('limitreport-expensivefunctioncount', array($this->mExpensiveFunctionCount, $this->mOptions->getExpensiveParserFunctionLimit()));
wfRunHooks('ParserLimitReportPrepare', array($this, $this->mOutput));
$limitReport = "NewPP limit report\n";
if ($wgShowHostnames) {
$limitReport .= 'Parsed by ' . wfHostname() . "\n";
}
foreach ($this->mOutput->getLimitReportData() as $key => $value) {
if (wfRunHooks('ParserLimitReportFormat', array($key, &$value, &$limitReport, false, false))) {
$keyMsg = wfMessage($key)->inLanguage('en')->useDatabase(false);
$valueMsg = wfMessage(array("{$key}-value-text", "{$key}-value"))->inLanguage('en')->useDatabase(false);
if (!$valueMsg->exists()) {
$valueMsg = new RawMessage('$1');
}
if (!$keyMsg->isDisabled() && !$valueMsg->isDisabled()) {
$valueMsg->params($value);
$limitReport .= "{$keyMsg->text()}: {$valueMsg->text()}\n";
}
}
}
// Since we're not really outputting HTML, decode the entities and
// then re-encode the things that need hiding inside HTML comments.
$limitReport = htmlspecialchars_decode($limitReport);
wfRunHooks('ParserLimitReport', array($this, &$limitReport));
// Sanitize for comment. Note '‐' in the replacement is U+2010,
// which looks much like the problematic '-'.
$limitReport = str_replace(array('-', '&'), array('‐', '&'), $limitReport);
$text .= "\n<!-- \n{$limitReport}-->\n";
if ($this->mGeneratedPPNodeCount > $this->mOptions->getMaxGeneratedPPNodeCount() / 10) {
wfDebugLog('generated-pp-node-count', $this->mGeneratedPPNodeCount . ' ' . $this->mTitle->getPrefixedDBkey());
}
}
$this->mOutput->setText($text);
$this->mRevisionId = $oldRevisionId;
$this->mRevisionObject = $oldRevisionObject;
$this->mRevisionTimestamp = $oldRevisionTimestamp;
$this->mRevisionUser = $oldRevisionUser;
$this->mRevisionSize = $oldRevisionSize;
$this->mInputSize = false;
wfProfileOut($fname);
wfProfileOut(__METHOD__);
return $this->mOutput;
}
/**
* Open a connection to a foreign DB, or return one if it is already open.
*
* Increments a reference count on the returned connection which locks the
* connection to the requested wiki. This reference count can be
* decremented by calling reuseConnection().
*
* If a connection is open to the appropriate server already, but with the wrong
* database, it will be switched to the right database and returned, as long as
* it has been freed first with reuseConnection().
*
* On error, returns false, and the connection which caused the
* error will be available via $this->mErrorConnection.
*
* @param int $i Server index
* @param string $wiki Wiki ID to open
* @return DatabaseBase
*/
private function openForeignConnection($i, $wiki)
{
list($dbName, $prefix) = wfSplitWikiID($wiki);
if (isset($this->mConns['foreignUsed'][$i][$wiki])) {
// Reuse an already-used connection
$conn = $this->mConns['foreignUsed'][$i][$wiki];
wfDebug(__METHOD__ . ": reusing connection {$i}/{$wiki}\n");
} elseif (isset($this->mConns['foreignFree'][$i][$wiki])) {
// Reuse a free connection for the same wiki
$conn = $this->mConns['foreignFree'][$i][$wiki];
unset($this->mConns['foreignFree'][$i][$wiki]);
$this->mConns['foreignUsed'][$i][$wiki] = $conn;
wfDebug(__METHOD__ . ": reusing free connection {$i}/{$wiki}\n");
} elseif (!empty($this->mConns['foreignFree'][$i])) {
// Reuse a connection from another wiki
$conn = reset($this->mConns['foreignFree'][$i]);
$oldWiki = key($this->mConns['foreignFree'][$i]);
// The empty string as a DB name means "don't care".
// DatabaseMysqlBase::open() already handle this on connection.
if ($dbName !== '' && !$conn->selectDB($dbName)) {
$this->mLastError = "Error selecting database {$dbName} on server " . $conn->getServer() . " from client host " . wfHostname() . "\n";
$this->mErrorConnection = $conn;
$conn = false;
} else {
$conn->tablePrefix($prefix);
unset($this->mConns['foreignFree'][$i][$oldWiki]);
$this->mConns['foreignUsed'][$i][$wiki] = $conn;
wfDebug(__METHOD__ . ": reusing free connection from {$oldWiki} for {$wiki}\n");
}
} else {
// Open a new connection
$server = $this->mServers[$i];
$server['serverIndex'] = $i;
$server['foreignPoolRefCount'] = 0;
$server['foreign'] = true;
$conn = $this->reallyOpenConnection($server, $dbName);
if (!$conn->isOpen()) {
wfDebug(__METHOD__ . ": error opening connection for {$i}/{$wiki}\n");
$this->mErrorConnection = $conn;
$conn = false;
} else {
$conn->tablePrefix($prefix);
$this->mConns['foreignUsed'][$i][$wiki] = $conn;
wfDebug(__METHOD__ . ": opened new connection for {$i}/{$wiki}\n");
}
}
// Increment reference count
if ($conn) {
$refCount = $conn->getLBInfo('foreignPoolRefCount');
$conn->setLBInfo('foreignPoolRefCount', $refCount + 1);
}
return $conn;
}
/**
* Convert wikitext to HTML
* Do not call this function recursively.
*
* @param string $text Text we want to parse
* @param Title $title
* @param ParserOptions $options
* @param bool $linestart
* @param bool $clearState
* @param int $revid Number to pass in {{REVISIONID}}
* @return ParserOutput A ParserOutput
*/
public function parse($text, Title $title, ParserOptions $options, $linestart = true, $clearState = true, $revid = null)
{
/**
* First pass--just handle <nowiki> sections, pass the rest off
* to internalParse() which does all the real work.
*/
global $wgShowHostnames;
if ($clearState) {
// We use U+007F DELETE to construct strip markers, so we have to make
// sure that this character does not occur in the input text.
$text = strtr($text, "", "?");
$magicScopeVariable = $this->lock();
}
$this->startParse($title, $options, self::OT_HTML, $clearState);
$this->currentRevisionCache = null;
$this->mInputSize = strlen($text);
if ($this->mOptions->getEnableLimitReport()) {
$this->mOutput->resetParseStartTime();
}
$oldRevisionId = $this->mRevisionId;
$oldRevisionObject = $this->mRevisionObject;
$oldRevisionTimestamp = $this->mRevisionTimestamp;
$oldRevisionUser = $this->mRevisionUser;
$oldRevisionSize = $this->mRevisionSize;
if ($revid !== null) {
$this->mRevisionId = $revid;
$this->mRevisionObject = null;
$this->mRevisionTimestamp = null;
$this->mRevisionUser = null;
$this->mRevisionSize = null;
}
Hooks::run('ParserBeforeStrip', array(&$this, &$text, &$this->mStripState));
# No more strip!
Hooks::run('ParserAfterStrip', array(&$this, &$text, &$this->mStripState));
$text = $this->internalParse($text);
Hooks::run('ParserAfterParse', array(&$this, &$text, &$this->mStripState));
$text = $this->internalParseHalfParsed($text, true, $linestart);
/**
* A converted title will be provided in the output object if title and
* content conversion are enabled, the article text does not contain
* a conversion-suppressing double-underscore tag, and no
* {{DISPLAYTITLE:...}} is present. DISPLAYTITLE takes precedence over
* automatic link conversion.
*/
if (!($options->getDisableTitleConversion() || isset($this->mDoubleUnderscores['nocontentconvert']) || isset($this->mDoubleUnderscores['notitleconvert']) || $this->mOutput->getDisplayTitle() !== false)) {
$convruletitle = $this->getConverterLanguage()->getConvRuleTitle();
if ($convruletitle) {
$this->mOutput->setTitleText($convruletitle);
} else {
$titleText = $this->getConverterLanguage()->convertTitle($title);
$this->mOutput->setTitleText($titleText);
}
}
if ($this->mExpensiveFunctionCount > $this->mOptions->getExpensiveParserFunctionLimit()) {
$this->limitationWarn('expensive-parserfunction', $this->mExpensiveFunctionCount, $this->mOptions->getExpensiveParserFunctionLimit());
}
# Information on include size limits, for the benefit of users who try to skirt them
if ($this->mOptions->getEnableLimitReport()) {
$max = $this->mOptions->getMaxIncludeSize();
$cpuTime = $this->mOutput->getTimeSinceStart('cpu');
if ($cpuTime !== null) {
$this->mOutput->setLimitReportData('limitreport-cputime', sprintf("%.3f", $cpuTime));
}
$wallTime = $this->mOutput->getTimeSinceStart('wall');
$this->mOutput->setLimitReportData('limitreport-walltime', sprintf("%.3f", $wallTime));
$this->mOutput->setLimitReportData('limitreport-ppvisitednodes', array($this->mPPNodeCount, $this->mOptions->getMaxPPNodeCount()));
$this->mOutput->setLimitReportData('limitreport-ppgeneratednodes', array($this->mGeneratedPPNodeCount, $this->mOptions->getMaxGeneratedPPNodeCount()));
$this->mOutput->setLimitReportData('limitreport-postexpandincludesize', array($this->mIncludeSizes['post-expand'], $max));
$this->mOutput->setLimitReportData('limitreport-templateargumentsize', array($this->mIncludeSizes['arg'], $max));
$this->mOutput->setLimitReportData('limitreport-expansiondepth', array($this->mHighestExpansionDepth, $this->mOptions->getMaxPPExpandDepth()));
$this->mOutput->setLimitReportData('limitreport-expensivefunctioncount', array($this->mExpensiveFunctionCount, $this->mOptions->getExpensiveParserFunctionLimit()));
Hooks::run('ParserLimitReportPrepare', array($this, $this->mOutput));
$limitReport = "NewPP limit report\n";
if ($wgShowHostnames) {
$limitReport .= 'Parsed by ' . wfHostname() . "\n";
}
$limitReport .= 'Cached time: ' . $this->mOutput->getCacheTime() . "\n";
$limitReport .= 'Cache expiry: ' . $this->mOutput->getCacheExpiry() . "\n";
$limitReport .= 'Dynamic content: ' . ($this->mOutput->hasDynamicContent() ? 'true' : 'false') . "\n";
foreach ($this->mOutput->getLimitReportData() as $key => $value) {
if (Hooks::run('ParserLimitReportFormat', array($key, &$value, &$limitReport, false, false))) {
$keyMsg = wfMessage($key)->inLanguage('en')->useDatabase(false);
$valueMsg = wfMessage(array("{$key}-value-text", "{$key}-value"))->inLanguage('en')->useDatabase(false);
if (!$valueMsg->exists()) {
$valueMsg = new RawMessage('$1');
}
if (!$keyMsg->isDisabled() && !$valueMsg->isDisabled()) {
$valueMsg->params($value);
$limitReport .= "{$keyMsg->text()}: {$valueMsg->text()}\n";
}
}
}
// Since we're not really outputting HTML, decode the entities and
// then re-encode the things that need hiding inside HTML comments.
$limitReport = htmlspecialchars_decode($limitReport);
Hooks::run('ParserLimitReport', array($this, &$limitReport));
// Sanitize for comment. Note '‐' in the replacement is U+2010,
// which looks much like the problematic '-'.
$limitReport = str_replace(array('-', '&'), array('‐', '&'), $limitReport);
$text .= "\n<!-- \n{$limitReport}-->\n";
// Add on template profiling data
$dataByFunc = $this->mProfiler->getFunctionStats();
uasort($dataByFunc, function ($a, $b) {
return $a['real'] < $b['real'];
// descending order
});
$profileReport = "Transclusion expansion time report (%,ms,calls,template)\n";
foreach (array_slice($dataByFunc, 0, 10) as $item) {
$profileReport .= sprintf("%6.2f%% %8.3f %6d - %s\n", $item['%real'], $item['real'], $item['calls'], htmlspecialchars($item['name']));
}
$text .= "\n<!-- \n{$profileReport}-->\n";
if ($this->mGeneratedPPNodeCount > $this->mOptions->getMaxGeneratedPPNodeCount() / 10) {
wfDebugLog('generated-pp-node-count', $this->mGeneratedPPNodeCount . ' ' . $this->mTitle->getPrefixedDBkey());
}
}
$this->mOutput->setText($text);
$this->mRevisionId = $oldRevisionId;
$this->mRevisionObject = $oldRevisionObject;
$this->mRevisionTimestamp = $oldRevisionTimestamp;
$this->mRevisionUser = $oldRevisionUser;
$this->mRevisionSize = $oldRevisionSize;
$this->mInputSize = false;
$this->currentRevisionCache = null;
return $this->mOutput;
}
function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0)
{
global $wgDjvuRenderer, $wgDjvuPostProcessor;
// Fetch XML and check it, to give a more informative error message than the one which
// normaliseParams will inevitably give.
$xml = $image->getMetadata();
if (!$xml) {
return new MediaTransformError('thumbnail_error', @$params['width'], @$params['height'], wfMsg('djvu_no_xml'));
}
if (!$this->normaliseParams($image, $params)) {
return new TransformParameterError($params);
}
$width = $params['width'];
$height = $params['height'];
$srcPath = $image->getPath();
$page = $params['page'];
if ($page > $this->pageCount($image)) {
return new MediaTransformError('thumbnail_error', $width, $height, wfMsg('djvu_page_error'));
}
if ($flags & self::TRANSFORM_LATER) {
return new ThumbnailImage($image, $dstUrl, $width, $height, $dstPath, $page);
}
if (!wfMkdirParents(dirname($dstPath))) {
return new MediaTransformError('thumbnail_error', $width, $height, wfMsg('thumbnail_dest_directory'));
}
# Use a subshell (brackets) to aggregate stderr from both pipeline commands
# before redirecting it to the overall stdout. This works in both Linux and Windows XP.
$cmd = '(' . wfEscapeShellArg($wgDjvuRenderer) . " -format=ppm -page={$page} -size={$width}x{$height} " . wfEscapeShellArg($srcPath);
if ($wgDjvuPostProcessor) {
$cmd .= " | {$wgDjvuPostProcessor}";
}
$cmd .= ' > ' . wfEscapeShellArg($dstPath) . ') 2>&1';
wfProfileIn('ddjvu');
wfDebug(__METHOD__ . ": {$cmd}\n");
$err = wfShellExec($cmd, $retval);
wfProfileOut('ddjvu');
$removed = $this->removeBadFile($dstPath, $retval);
if ($retval != 0 || $removed) {
wfDebugLog('thumbnail', sprintf('thumbnail failed on %s: error %d "%s" from "%s"', wfHostname(), $retval, trim($err), $cmd));
return new MediaTransformError('thumbnail_error', $width, $height, $err);
} else {
return new ThumbnailImage($image, $dstUrl, $width, $height, $dstPath, $page);
}
}
/**
* Returns a script tag that stores the amount of time it took MediaWiki to
* handle the request in milliseconds as 'wgBackendResponseTime'.
*
* If $wgShowHostnames is true, the script will also set 'wgHostname' to the
* hostname of the server handling the request.
*
* @return string
*/
function wfReportTime()
{
global $wgRequestTime, $wgShowHostnames;
$responseTime = round((microtime(true) - $wgRequestTime) * 1000);
$reportVars = array('wgBackendResponseTime' => $responseTime);
if ($wgShowHostnames) {
$reportVars['wgHostname'] = wfHostname();
}
return Skin::makeVariablesScript($reportVars);
}
/**
* Output a thumbnail generation error message
*
* @param $status integer
* @param $msg string
* @return void
*/
function wfThumbError($status, $msg)
{
global $wgShowHostnames;
header('Cache-Control: no-cache');
header('Content-Type: text/html; charset=utf-8');
if ($status == 404) {
header('HTTP/1.1 404 Not found');
} elseif ($status == 403) {
header('HTTP/1.1 403 Forbidden');
header('Vary: Cookie');
} else {
header('HTTP/1.1 500 Internal server error');
}
if ($wgShowHostnames) {
$url = htmlspecialchars(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '');
$hostname = htmlspecialchars(wfHostname());
$debug = "<!-- {$url} -->\n<!-- {$hostname} -->\n";
} else {
$debug = '';
}
echo <<<EOT
<html><head><title>Error generating thumbnail</title></head>
<body>
<h1>Error generating thumbnail</h1>
<p>
{$msg}
</p>
{$debug}
</body>
</html>
EOT;
}
/**
* Log a function into the database.
*
* @param $name String: function name
* @param $timeSum Float
* @param $eventCount Integer: number of times that function was called
* @param $memorySum Integer: memory used by the function
*/
static function logToDB($name, $timeSum, $eventCount, $memorySum)
{
# Do not log anything if database is readonly (bug 5375)
if (wfReadOnly()) {
return;
}
global $wgProfilePerHost;
$dbw = wfGetDB(DB_MASTER);
if (!is_object($dbw)) {
return false;
}
$errorState = $dbw->ignoreErrors(true);
$name = substr($name, 0, 255);
if ($wgProfilePerHost) {
$pfhost = wfHostname();
} else {
$pfhost = '';
}
// Kludge
$timeSum = $timeSum >= 0 ? $timeSum : 0;
$memorySum = $memorySum >= 0 ? $memorySum : 0;
$dbw->update('profiling', array("pf_count=pf_count+{$eventCount}", "pf_time=pf_time+{$timeSum}", "pf_memory=pf_memory+{$memorySum}"), array('pf_name' => $name, 'pf_server' => $pfhost), __METHOD__);
$rc = $dbw->affectedRows();
if ($rc == 0) {
$dbw->insert('profiling', array('pf_name' => $name, 'pf_count' => $eventCount, 'pf_time' => $timeSum, 'pf_memory' => $memorySum, 'pf_server' => $pfhost), __METHOD__, array('IGNORE'));
}
// When we upgrade to mysql 4.1, the insert+update
// can be merged into just a insert with this construct added:
// "ON DUPLICATE KEY UPDATE ".
// "pf_count=pf_count + VALUES(pf_count), ".
// "pf_time=pf_time + VALUES(pf_time)";
$dbw->ignoreErrors($errorState);
}
/**
* Log an error that occurred in an external process
*
* Moved from BitmapHandler to MediaHandler with MediaWiki 1.23
*
* @since 1.23
* @param int $retval
* @param string $err Error reported by command. Anything longer than
* MediaHandler::MAX_ERR_LOG_SIZE is stripped off.
* @param string $cmd
*/
protected function logErrorForExternalProcess($retval, $err, $cmd)
{
# Keep error output limited (bug 57985)
$errMessage = trim(substr($err, 0, self::MAX_ERR_LOG_SIZE));
wfDebugLog('thumbnail', sprintf('thumbnail failed on %s: error %d "%s" from "%s"', wfHostname(), $retval, $errMessage, $cmd));
}
/**
* Create a thumbnail.
*
* This sets up various parameters, and then calls a helper method
* based on $this->getScalerType in order to scale the image.
*
* @param File $image
* @param string $dstPath
* @param string $dstUrl
* @param array $params
* @param int $flags
* @return MediaTransformError|ThumbnailImage|TransformParameterError
*/
function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0)
{
if (!$this->normaliseParams($image, $params)) {
return new TransformParameterError($params);
}
# Create a parameter array to pass to the scaler
$scalerParams = array('physicalWidth' => $params['physicalWidth'], 'physicalHeight' => $params['physicalHeight'], 'physicalDimensions' => "{$params['physicalWidth']}x{$params['physicalHeight']}", 'clientWidth' => $params['width'], 'clientHeight' => $params['height'], 'comment' => isset($params['descriptionUrl']) ? "File source: {$params['descriptionUrl']}" : '', 'srcWidth' => $image->getWidth(), 'srcHeight' => $image->getHeight(), 'mimeType' => $image->getMimeType(), 'dstPath' => $dstPath, 'dstUrl' => $dstUrl);
if (isset($params['quality']) && $params['quality'] === 'low') {
$scalerParams['quality'] = 30;
}
// For subclasses that might be paged.
if ($image->isMultipage() && isset($params['page'])) {
$scalerParams['page'] = intval($params['page']);
}
# Determine scaler type
$scaler = $this->getScalerType($dstPath);
if (is_array($scaler)) {
$scalerName = get_class($scaler[0]);
} else {
$scalerName = $scaler;
}
wfDebug(__METHOD__ . ": creating {$scalerParams['physicalDimensions']} " . "thumbnail at {$dstPath} using scaler {$scalerName}\n");
if (!$image->mustRender() && $scalerParams['physicalWidth'] == $scalerParams['srcWidth'] && $scalerParams['physicalHeight'] == $scalerParams['srcHeight'] && !isset($scalerParams['quality'])) {
# normaliseParams (or the user) wants us to return the unscaled image
wfDebug(__METHOD__ . ": returning unscaled image\n");
return $this->getClientScalingThumbnailImage($image, $scalerParams);
}
if ($scaler == 'client') {
# Client-side image scaling, use the source URL
# Using the destination URL in a TRANSFORM_LATER request would be incorrect
return $this->getClientScalingThumbnailImage($image, $scalerParams);
}
if ($image->isTransformedLocally() && !$this->isImageAreaOkForThumbnaling($image, $params)) {
global $wgMaxImageArea;
return new TransformTooBigImageAreaError($params, $wgMaxImageArea);
}
if ($flags & self::TRANSFORM_LATER) {
wfDebug(__METHOD__ . ": Transforming later per flags.\n");
$newParams = array('width' => $scalerParams['clientWidth'], 'height' => $scalerParams['clientHeight']);
if (isset($params['quality'])) {
$newParams['quality'] = $params['quality'];
}
if (isset($params['page']) && $params['page']) {
$newParams['page'] = $params['page'];
}
return new ThumbnailImage($image, $dstUrl, false, $newParams);
}
# Try to make a target path for the thumbnail
if (!wfMkdirParents(dirname($dstPath), null, __METHOD__)) {
wfDebug(__METHOD__ . ": Unable to create thumbnail destination " . "directory, falling back to client scaling\n");
return $this->getClientScalingThumbnailImage($image, $scalerParams);
}
# Transform functions and binaries need a FS source file
$thumbnailSource = $this->getThumbnailSource($image, $params);
// If the source isn't the original, disable EXIF rotation because it's already been applied
if ($scalerParams['srcWidth'] != $thumbnailSource['width'] || $scalerParams['srcHeight'] != $thumbnailSource['height']) {
$scalerParams['disableRotation'] = true;
}
$scalerParams['srcPath'] = $thumbnailSource['path'];
$scalerParams['srcWidth'] = $thumbnailSource['width'];
$scalerParams['srcHeight'] = $thumbnailSource['height'];
if ($scalerParams['srcPath'] === false) {
// Failed to get local copy
wfDebugLog('thumbnail', sprintf('Thumbnail failed on %s: could not get local copy of "%s"', wfHostname(), $image->getName()));
return new MediaTransformError('thumbnail_error', $scalerParams['clientWidth'], $scalerParams['clientHeight'], wfMessage('filemissing')->text());
}
# Try a hook. Called "Bitmap" for historical reasons.
/** @var $mto MediaTransformOutput */
$mto = null;
Hooks::run('BitmapHandlerTransform', array($this, $image, &$scalerParams, &$mto));
if (!is_null($mto)) {
wfDebug(__METHOD__ . ": Hook to BitmapHandlerTransform created an mto\n");
$scaler = 'hookaborted';
}
// $scaler will return a MediaTransformError on failure, or false on success.
// If the scaler is succesful, it will have created a thumbnail at the destination
// path.
if (is_array($scaler) && is_callable($scaler)) {
// Allow subclasses to specify their own rendering methods.
$err = call_user_func($scaler, $image, $scalerParams);
} else {
switch ($scaler) {
case 'hookaborted':
# Handled by the hook above
$err = $mto->isError() ? $mto : false;
break;
case 'im':
$err = $this->transformImageMagick($image, $scalerParams);
break;
case 'custom':
$err = $this->transformCustom($image, $scalerParams);
break;
case 'imext':
$err = $this->transformImageMagickExt($image, $scalerParams);
break;
case 'gd':
default:
$err = $this->transformGd($image, $scalerParams);
break;
}
}
# Remove the file if a zero-byte thumbnail was created, or if there was an error
$removed = $this->removeBadFile($dstPath, (bool) $err);
if ($err) {
# transform returned MediaTransforError
return $err;
} elseif ($removed) {
# Thumbnail was zero-byte and had to be removed
return new MediaTransformError('thumbnail_error', $scalerParams['clientWidth'], $scalerParams['clientHeight'], wfMessage('unknown-error')->text());
} elseif ($mto) {
return $mto;
} else {
$newParams = array('width' => $scalerParams['clientWidth'], 'height' => $scalerParams['clientHeight']);
if (isset($params['quality'])) {
$newParams['quality'] = $params['quality'];
}
if (isset($params['page']) && $params['page']) {
$newParams['page'] = $params['page'];
}
return new ThumbnailImage($image, $dstUrl, $dstPath, $newParams);
}
}
/**
* Format a message as `wfDebugLog() would have formatted it.
*
* @param string $channel
* @param string $message
* @param array $context
* @return null
*/
protected static function formatAsWfDebugLog($channel, $message, $context)
{
$time = wfTimestamp(TS_DB);
$wiki = wfWikiID();
$host = wfHostname();
$text = "{$time} {$host} {$wiki}: {$message}\n";
return $text;
}
/**
* Add response headers with debug data and statistics
*
* @param WebResponse $response
* @author macbre
*/
private static function addExtraHeaders(WebResponse $response)
{
global $wgRequestTime;
$elapsed = microtime(true) - $wgRequestTime;
$response->header(sprintf('X-Served-By:%s', wfHostname()));
$response->header(sprintf('X-Backend-Response-Time:%01.3f', $elapsed));
$response->header('X-Cache: ORIGIN');
$response->header('X-Cache-Hits: ORIGIN');
}
/** Open an MSSQL database and return a resource handle to it
* NOTE: only $dbName is used, the other parameters are irrelevant for MSSQL databases
*/
function open($server, $user, $password, $dbName)
{
wfProfileIn(__METHOD__);
# Test for missing mysql.so
# First try to load it
if (!@extension_loaded('mssql')) {
@dl('mssql.so');
}
# Fail now
# Otherwise we get a suppressed fatal error, which is very hard to track down
if (!function_exists('mssql_connect')) {
throw new DBConnectionError($this, "MSSQL functions missing, have you compiled PHP with the --with-mssql option?\n");
}
$this->close();
$this->mServer = $server;
$this->mUser = $user;
$this->mPassword = $password;
$this->mDBname = $dbName;
wfProfileIn("dbconnect-{$server}");
# Try to connect up to three times
# The kernel's default SYN retransmission period is far too slow for us,
# so we use a short timeout plus a manual retry.
$this->mConn = false;
$max = 3;
for ($i = 0; $i < $max && !$this->mConn; $i++) {
if ($i > 1) {
usleep(1000);
}
if ($this->mFlags & DBO_PERSISTENT) {
@($this->mConn = mssql_pconnect($server, $user, $password));
} else {
# Create a new connection...
@($this->mConn = mssql_connect($server, $user, $password, true));
}
}
wfProfileOut("dbconnect-{$server}");
if ($dbName != '') {
if ($this->mConn !== false) {
$success = @mssql_select_db($dbName, $this->mConn);
if (!$success) {
$error = "Error selecting database {$dbName} on server {$this->mServer} " . "from client host " . wfHostname() . "\n";
wfLogDBError(" Error selecting database {$dbName} on server {$this->mServer} \n");
wfDebug($error);
}
} else {
wfDebug("DB connection error\n");
wfDebug("Server: {$server}, User: {$user}, Password: "******"...\n");
$success = false;
}
} else {
# Delay USE query
$success = (bool) $this->mConn;
}
if (!$success) {
$this->reportConnectionError();
}
$this->mOpened = $success;
wfProfileOut(__METHOD__);
return $success;
}
/**
* @param $server string
* @param $user string
* @param $password string
* @param $dbName string
* @return bool
* @throws DBConnectionError
*/
function open( $server, $user, $password, $dbName ) {
global $wgAllDBsAreLocalhost, $wgDBmysql5, $wgSQLMode;
wfProfileIn( __METHOD__ );
# Debugging hack -- fake cluster
if ( $wgAllDBsAreLocalhost ) {
$realServer = 'localhost';
} else {
$realServer = $server;
}
$this->close();
$this->mServer = $server;
$this->mUser = $user;
$this->mPassword = $password;
$this->mDBname = $dbName;
wfProfileIn( "dbconnect-$server" );
# The kernel's default SYN retransmission period is far too slow for us,
# so we use a short timeout plus a manual retry. Retrying means that a small
# but finite rate of SYN packet loss won't cause user-visible errors.
$this->mConn = false;
$this->installErrorHandler();
try {
$this->mConn = $this->mysqlConnect( $realServer );
} catch ( Exception $ex ) {
wfProfileOut( "dbconnect-$server" );
wfProfileOut( __METHOD__ );
throw $ex;
}
$error = $this->restoreErrorHandler();
wfProfileOut( "dbconnect-$server" );
# Always log connection errors
if ( !$this->mConn ) {
if ( !$error ) {
$error = $this->lastError();
}
wfLogDBError( "Error connecting to {$this->mServer}: $error\n" );
wfDebug( "DB connection error\n" .
"Server: $server, User: $user, Password: "******"..., error: " . $error . "\n" );
wfProfileOut( __METHOD__ );
return $this->reportConnectionError( $error );
}
if ( $dbName != '' ) {
wfSuppressWarnings();
$success = $this->selectDB( $dbName );
wfRestoreWarnings();
if ( !$success ) {
wfLogDBError( "Error selecting database $dbName on server {$this->mServer}\n" );
wfDebug( "Error selecting database $dbName on server {$this->mServer} " .
"from client host " . wfHostname() . "\n" );
wfProfileOut( __METHOD__ );
return $this->reportConnectionError( "Error selecting database $dbName" );
}
}
// Tell the server we're communicating with it in UTF-8.
// This may engage various charset conversions.
if ( $wgDBmysql5 ) {
$this->query( 'SET NAMES utf8', __METHOD__ );
} else {
$this->query( 'SET NAMES binary', __METHOD__ );
}
// Set SQL mode, default is turning them all off, can be overridden or skipped with null
if ( is_string( $wgSQLMode ) ) {
$mode = $this->addQuotes( $wgSQLMode );
$this->query( "SET sql_mode = $mode", __METHOD__ );
}
$this->mOpened = true;
wfProfileOut( __METHOD__ );
return true;
}
/**
* Convert wikitext to HTML
* Do not call this function recursively.
*
* @param string $text Text we want to parse
* @param Title $title
* @param ParserOptions $options
* @param bool $linestart
* @param bool $clearState
* @param int $revid Number to pass in {{REVISIONID}}
* @return ParserOutput A ParserOutput
*/
public function parse($text, Title $title, ParserOptions $options, $linestart = true, $clearState = true, $revid = null)
{
/**
* First pass--just handle <nowiki> sections, pass the rest off
* to internalParse() which does all the real work.
*/
global $wgShowHostnames;
if ($clearState) {
// We use U+007F DELETE to construct strip markers, so we have to make
// sure that this character does not occur in the input text.
$text = strtr($text, "", "?");
$magicScopeVariable = $this->lock();
}
$this->startParse($title, $options, self::OT_HTML, $clearState);
$this->currentRevisionCache = null;
$this->mInputSize = strlen($text);
if ($this->mOptions->getEnableLimitReport()) {
$this->mOutput->resetParseStartTime();
}
$oldRevisionId = $this->mRevisionId;
$oldRevisionObject = $this->mRevisionObject;
$oldRevisionTimestamp = $this->mRevisionTimestamp;
$oldRevisionUser = $this->mRevisionUser;
$oldRevisionSize = $this->mRevisionSize;
if ($revid !== null) {
$this->mRevisionId = $revid;
$this->mRevisionObject = null;
$this->mRevisionTimestamp = null;
$this->mRevisionUser = null;
$this->mRevisionSize = null;
}
Hooks::run('ParserBeforeStrip', [&$this, &$text, &$this->mStripState]);
# No more strip!
Hooks::run('ParserAfterStrip', [&$this, &$text, &$this->mStripState]);
$text = $this->internalParse($text);
Hooks::run('ParserAfterParse', [&$this, &$text, &$this->mStripState]);
$text = $this->internalParseHalfParsed($text, true, $linestart);
/**
* A converted title will be provided in the output object if title and
* content conversion are enabled, the article text does not contain
* a conversion-suppressing double-underscore tag, and no
* {{DISPLAYTITLE:...}} is present. DISPLAYTITLE takes precedence over
* automatic link conversion.
*/
if (!($options->getDisableTitleConversion() || isset($this->mDoubleUnderscores['nocontentconvert']) || isset($this->mDoubleUnderscores['notitleconvert']) || $this->mOutput->getDisplayTitle() !== false)) {
$convruletitle = $this->getConverterLanguage()->getConvRuleTitle();
if ($convruletitle) {
$this->mOutput->setTitleText($convruletitle);
} else {
$titleText = $this->getConverterLanguage()->convertTitle($title);
$this->mOutput->setTitleText($titleText);
}
}
# Done parsing! Compute runtime adaptive expiry if set
$this->mOutput->finalizeAdaptiveCacheExpiry();
# Warn if too many heavyweight parser functions were used
if ($this->mExpensiveFunctionCount > $this->mOptions->getExpensiveParserFunctionLimit()) {
$this->limitationWarn('expensive-parserfunction', $this->mExpensiveFunctionCount, $this->mOptions->getExpensiveParserFunctionLimit());
}
# Information on include size limits, for the benefit of users who try to skirt them
if ($this->mOptions->getEnableLimitReport()) {
$max = $this->mOptions->getMaxIncludeSize();
$cpuTime = $this->mOutput->getTimeSinceStart('cpu');
if ($cpuTime !== null) {
$this->mOutput->setLimitReportData('limitreport-cputime', sprintf("%.3f", $cpuTime));
}
$wallTime = $this->mOutput->getTimeSinceStart('wall');
$this->mOutput->setLimitReportData('limitreport-walltime', sprintf("%.3f", $wallTime));
$this->mOutput->setLimitReportData('limitreport-ppvisitednodes', [$this->mPPNodeCount, $this->mOptions->getMaxPPNodeCount()]);
$this->mOutput->setLimitReportData('limitreport-ppgeneratednodes', [$this->mGeneratedPPNodeCount, $this->mOptions->getMaxGeneratedPPNodeCount()]);
$this->mOutput->setLimitReportData('limitreport-postexpandincludesize', [$this->mIncludeSizes['post-expand'], $max]);
$this->mOutput->setLimitReportData('limitreport-templateargumentsize', [$this->mIncludeSizes['arg'], $max]);
$this->mOutput->setLimitReportData('limitreport-expansiondepth', [$this->mHighestExpansionDepth, $this->mOptions->getMaxPPExpandDepth()]);
$this->mOutput->setLimitReportData('limitreport-expensivefunctioncount', [$this->mExpensiveFunctionCount, $this->mOptions->getExpensiveParserFunctionLimit()]);
Hooks::run('ParserLimitReportPrepare', [$this, $this->mOutput]);
$limitReport = '';
Hooks::run('ParserLimitReport', [$this, &$limitReport]);
if ($limitReport != '') {
// Sanitize for comment. Note '‐' in the replacement is U+2010,
// which looks much like the problematic '-'.
$limitReport = str_replace(['-', '&'], ['‐', '&'], $limitReport);
$text .= "\n<!-- \nNewPP limit report\n{$limitReport}-->\n";
}
// Add on template profiling data in human/machine readable way
$dataByFunc = $this->mProfiler->getFunctionStats();
uasort($dataByFunc, function ($a, $b) {
return $a['real'] < $b['real'];
// descending order
});
$profileReport = [];
foreach (array_slice($dataByFunc, 0, 10) as $item) {
$profileReport[] = sprintf("%6.2f%% %8.3f %6d %s", $item['%real'], $item['real'], $item['calls'], $item['name']);
}
$this->mOutput->setLimitReportData('limitreport-timingprofile', $profileReport);
// Add other cache related metadata
if ($wgShowHostnames) {
$this->mOutput->setLimitReportData('cachereport-origin', wfHostname());
}
$this->mOutput->setLimitReportData('cachereport-timestamp', $this->mOutput->getCacheTime());
$this->mOutput->setLimitReportData('cachereport-ttl', $this->mOutput->getCacheExpiry());
$this->mOutput->setLimitReportData('cachereport-transientcontent', $this->mOutput->hasDynamicContent());
if ($this->mGeneratedPPNodeCount > $this->mOptions->getMaxGeneratedPPNodeCount() / 10) {
wfDebugLog('generated-pp-node-count', $this->mGeneratedPPNodeCount . ' ' . $this->mTitle->getPrefixedDBkey());
}
}
$this->mOutput->setText($text);
$this->mRevisionId = $oldRevisionId;
$this->mRevisionObject = $oldRevisionObject;
$this->mRevisionTimestamp = $oldRevisionTimestamp;
$this->mRevisionUser = $oldRevisionUser;
$this->mRevisionSize = $oldRevisionSize;
$this->mInputSize = false;
$this->currentRevisionCache = null;
return $this->mOutput;
}
/**
* Log an error that occured in an external process
*
* @param $retval int
* @param $err int
* @param $cmd string
*/
protected function logErrorForExternalProcess($retval, $err, $cmd)
{
wfDebugLog('thumbnail', sprintf('thumbnail failed on %s: error %d "%s" from "%s"', wfHostname(), $retval, trim($err), $cmd));
}
/**
* @param File $image
* @param string $dstPath
* @param string $dstUrl
* @param array $params
* @param int $flags
* @return bool|MediaTransformError|ThumbnailImage|TransformParameterError
*/
function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0)
{
if (!$this->normaliseParams($image, $params)) {
return new TransformParameterError($params);
}
$clientWidth = $params['width'];
$clientHeight = $params['height'];
$physicalWidth = $params['physicalWidth'];
$physicalHeight = $params['physicalHeight'];
$lang = isset($params['lang']) ? $params['lang'] : $this->getDefaultRenderLanguage($image);
if ($flags & self::TRANSFORM_LATER) {
return new ThumbnailImage($image, $dstUrl, $dstPath, $params);
}
$metadata = $this->unpackMetadata($image->getMetadata());
if (isset($metadata['error'])) {
// sanity check
$err = wfMessage('svg-long-error', $metadata['error']['message'])->text();
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, $err);
}
if (!wfMkdirParents(dirname($dstPath), null, __METHOD__)) {
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, wfMessage('thumbnail_dest_directory')->text());
}
$srcPath = $image->getLocalRefPath();
if ($srcPath === false) {
// Failed to get local copy
wfDebugLog('thumbnail', sprintf('Thumbnail failed on %s: could not get local copy of "%s"', wfHostname(), $image->getName()));
return new MediaTransformError('thumbnail_error', $params['width'], $params['height'], wfMessage('filemissing')->text());
}
// Make a temp dir with a symlink to the local copy in it.
// This plays well with rsvg-convert policy for external entities.
// https://git.gnome.org/browse/librsvg/commit/?id=f01aded72c38f0e18bc7ff67dee800e380251c8e
$tmpDir = wfTempDir() . '/svg_' . wfRandomString(24);
$lnPath = "{$tmpDir}/" . basename($srcPath);
$ok = mkdir($tmpDir, 0771) && symlink($srcPath, $lnPath);
/** @noinspection PhpUnusedLocalVariableInspection */
$cleaner = new ScopedCallback(function () use($tmpDir, $lnPath) {
MediaWiki\suppressWarnings();
unlink($lnPath);
rmdir($tmpDir);
MediaWiki\restoreWarnings();
});
if (!$ok) {
wfDebugLog('thumbnail', sprintf('Thumbnail failed on %s: could not link %s to %s', wfHostname(), $lnPath, $srcPath));
return new MediaTransformError('thumbnail_error', $params['width'], $params['height'], wfMessage('thumbnail-temp-create')->text());
}
$status = $this->rasterize($lnPath, $dstPath, $physicalWidth, $physicalHeight, $lang);
if ($status === true) {
return new ThumbnailImage($image, $dstUrl, $dstPath, $params);
} else {
return $status;
// MediaTransformError
}
}
/**
* Generate a debug comment indicating diff generating time,
* server node, and generator backend.
*/
protected function debug($generator = "internal")
{
global $wgShowHostnames;
if (!$this->enableDebugComment) {
return '';
}
$data = array($generator);
if ($wgShowHostnames) {
$data[] = wfHostname();
}
$data[] = wfTimestamp(TS_DB);
return "<!-- diff generator: " . implode(" ", array_map("htmlspecialchars", $data)) . " -->\n";
}
function doTransform($image, $dstPath, $dstUrl, $params, $flags = 0)
{
global $wgUseImageMagick, $wgImageMagickConvertCommand, $wgImageMagickTempDir;
global $wgCustomConvertCommand;
global $wgSharpenParameter, $wgSharpenReductionThreshold;
global $wgMaxAnimatedGifArea;
if (!$this->normaliseParams($image, $params)) {
return new TransformParameterError($params);
}
$physicalWidth = $params['physicalWidth'];
$physicalHeight = $params['physicalHeight'];
$clientWidth = $params['width'];
$clientHeight = $params['height'];
$srcWidth = $image->getWidth();
$srcHeight = $image->getHeight();
$mimeType = $image->getMimeType();
$srcPath = $image->getPath();
$retval = 0;
wfDebug(__METHOD__ . ": creating {$physicalWidth}x{$physicalHeight} thumbnail at {$dstPath}\n");
if (!$image->mustRender() && $physicalWidth == $srcWidth && $physicalHeight == $srcHeight) {
# normaliseParams (or the user) wants us to return the unscaled image
wfDebug(__METHOD__ . ": returning unscaled image\n");
return new ThumbnailImage($image, $image->getURL(), $clientWidth, $clientHeight, $srcPath);
}
if (!$dstPath) {
// No output path available, client side scaling only
$scaler = 'client';
} elseif ($wgUseImageMagick) {
$scaler = 'im';
} elseif ($wgCustomConvertCommand) {
$scaler = 'custom';
} elseif (function_exists('imagecreatetruecolor')) {
$scaler = 'gd';
} else {
$scaler = 'client';
}
wfDebug(__METHOD__ . ": scaler {$scaler}\n");
if ($scaler == 'client') {
# Client-side image scaling, use the source URL
# Using the destination URL in a TRANSFORM_LATER request would be incorrect
return new ThumbnailImage($image, $image->getURL(), $clientWidth, $clientHeight, $srcPath);
}
if ($flags & self::TRANSFORM_LATER) {
wfDebug(__METHOD__ . ": Transforming later per flags.\n");
return new ThumbnailImage($image, $dstUrl, $clientWidth, $clientHeight, $dstPath);
}
if (!wfMkdirParents(dirname($dstPath))) {
wfDebug(__METHOD__ . ": Unable to create thumbnail destination directory, falling back to client scaling\n");
return new ThumbnailImage($image, $image->getURL(), $clientWidth, $clientHeight, $srcPath);
}
if ($scaler == 'im') {
# use ImageMagick
$quality = '';
$sharpen = '';
$frame = '';
$animation = '';
if ($mimeType == 'image/jpeg') {
$quality = "-quality 80";
// 80%
# Sharpening, see bug 6193
if (($physicalWidth + $physicalHeight) / ($srcWidth + $srcHeight) < $wgSharpenReductionThreshold) {
$sharpen = "-sharpen " . wfEscapeShellArg($wgSharpenParameter);
}
} elseif ($mimeType == 'image/png') {
$quality = "-quality 95";
// zlib 9, adaptive filtering
} elseif ($mimeType == 'image/gif') {
if ($srcWidth * $srcHeight > $wgMaxAnimatedGifArea) {
// Extract initial frame only; we're so big it'll
// be a total drag. :P
$frame = '[0]';
} else {
// Coalesce is needed to scale animated GIFs properly (bug 1017).
$animation = ' -coalesce ';
}
}
if (strval($wgImageMagickTempDir) !== '') {
$tempEnv = 'MAGICK_TMPDIR=' . wfEscapeShellArg($wgImageMagickTempDir) . ' ';
} else {
$tempEnv = '';
}
# Specify white background color, will be used for transparent images
# in Internet Explorer/Windows instead of default black.
# Note, we specify "-size {$physicalWidth}" and NOT "-size {$physicalWidth}x{$physicalHeight}".
# It seems that ImageMagick has a bug wherein it produces thumbnails of
# the wrong size in the second case.
$cmd = $tempEnv . wfEscapeShellArg($wgImageMagickConvertCommand) . " {$quality} -background white -size {$physicalWidth} " . wfEscapeShellArg($srcPath . $frame) . $animation . " -thumbnail " . wfEscapeShellArg("{$physicalWidth}x{$physicalHeight}!") . " -depth 8 {$sharpen} " . wfEscapeShellArg($dstPath) . " 2>&1";
wfDebug(__METHOD__ . ": running ImageMagick: {$cmd}\n");
wfProfileIn('convert');
$err = wfShellExec($cmd, $retval);
wfProfileOut('convert');
} elseif ($scaler == 'custom') {
# Use a custom convert command
# Variables: %s %d %w %h
$src = wfEscapeShellArg($srcPath);
$dst = wfEscapeShellArg($dstPath);
$cmd = $wgCustomConvertCommand;
$cmd = str_replace('%s', $src, str_replace('%d', $dst, $cmd));
# Filenames
$cmd = str_replace('%h', $physicalHeight, str_replace('%w', $physicalWidth, $cmd));
# Size
wfDebug(__METHOD__ . ": Running custom convert command {$cmd}\n");
wfProfileIn('convert');
$err = wfShellExec($cmd, $retval);
wfProfileOut('convert');
} else {
# Use PHP's builtin GD library functions.
#
# First find out what kind of file this is, and select the correct
# input routine for this.
$typemap = array('image/gif' => array('imagecreatefromgif', 'palette', 'imagegif'), 'image/jpeg' => array('imagecreatefromjpeg', 'truecolor', array(__CLASS__, 'imageJpegWrapper')), 'image/png' => array('imagecreatefrompng', 'bits', 'imagepng'), 'image/vnd.wap.wbmp' => array('imagecreatefromwbmp', 'palette', 'imagewbmp'), 'image/xbm' => array('imagecreatefromxbm', 'palette', 'imagexbm'));
if (!isset($typemap[$mimeType])) {
$err = 'Image type not supported';
wfDebug("{$err}\n");
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, $err);
}
list($loader, $colorStyle, $saveType) = $typemap[$mimeType];
if (!function_exists($loader)) {
$err = "Incomplete GD library configuration: missing function {$loader}";
wfDebug("{$err}\n");
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, $err);
}
$src_image = call_user_func($loader, $srcPath);
$dst_image = imagecreatetruecolor($physicalWidth, $physicalHeight);
// Initialise the destination image to transparent instead of
// the default solid black, to support PNG and GIF transparency nicely
$background = imagecolorallocate($dst_image, 0, 0, 0);
imagecolortransparent($dst_image, $background);
imagealphablending($dst_image, false);
if ($colorStyle == 'palette') {
// Don't resample for paletted GIF images.
// It may just uglify them, and completely breaks transparency.
imagecopyresized($dst_image, $src_image, 0, 0, 0, 0, $physicalWidth, $physicalHeight, imagesx($src_image), imagesy($src_image));
} else {
imagecopyresampled($dst_image, $src_image, 0, 0, 0, 0, $physicalWidth, $physicalHeight, imagesx($src_image), imagesy($src_image));
}
imagesavealpha($dst_image, true);
call_user_func($saveType, $dst_image, $dstPath);
imagedestroy($dst_image);
imagedestroy($src_image);
$retval = 0;
}
$removed = $this->removeBadFile($dstPath, $retval);
if ($retval != 0 || $removed) {
wfDebugLog('thumbnail', sprintf('thumbnail failed on %s: error %d "%s" from "%s"', wfHostname(), $retval, trim($err), $cmd));
return new MediaTransformError('thumbnail_error', $clientWidth, $clientHeight, $err);
} else {
return new ThumbnailImage($image, $dstUrl, $clientWidth, $clientHeight, $dstPath);
}
}
/**
* @param string $server
* @param string $user
* @param string $password
* @param string $dbName
* @throws Exception|DBConnectionError
* @return bool
*/
function open($server, $user, $password, $dbName)
{
global $wgAllDBsAreLocalhost, $wgSQLMode;
# Close/unset connection handle
$this->close();
# Debugging hack -- fake cluster
$realServer = $wgAllDBsAreLocalhost ? 'localhost' : $server;
$this->mServer = $server;
$this->mUser = $user;
$this->mPassword = $password;
$this->mDBname = $dbName;
$this->installErrorHandler();
try {
$this->mConn = $this->mysqlConnect($realServer);
} catch (Exception $ex) {
$this->restoreErrorHandler();
throw $ex;
}
$error = $this->restoreErrorHandler();
# Always log connection errors
if (!$this->mConn) {
if (!$error) {
$error = $this->lastError();
}
wfLogDBError("Error connecting to {db_server}: {error}", $this->getLogContext(array('method' => __METHOD__, 'error' => $error)));
wfDebug("DB connection error\n" . "Server: {$server}, User: {$user}, Password: "******"..., error: " . $error . "\n");
$this->reportConnectionError($error);
}
if ($dbName != '') {
MediaWiki\suppressWarnings();
$success = $this->selectDB($dbName);
MediaWiki\restoreWarnings();
if (!$success) {
wfLogDBError("Error selecting database {db_name} on server {db_server}", $this->getLogContext(array('method' => __METHOD__)));
wfDebug("Error selecting database {$dbName} on server {$this->mServer} " . "from client host " . wfHostname() . "\n");
$this->reportConnectionError("Error selecting database {$dbName}");
}
}
// Tell the server what we're communicating with
if (!$this->connectInitCharset()) {
$this->reportConnectionError("Error setting character set");
}
// Abstract over any insane MySQL defaults
$set = array('group_concat_max_len = 262144');
// Set SQL mode, default is turning them all off, can be overridden or skipped with null
if (is_string($wgSQLMode)) {
$set[] = 'sql_mode = ' . $this->addQuotes($wgSQLMode);
}
// Set any custom settings defined by site config
// (e.g. https://dev.mysql.com/doc/refman/4.1/en/innodb-parameters.html)
foreach ($this->mSessionVars as $var => $val) {
// Escape strings but not numbers to avoid MySQL complaining
if (!is_int($val) && !is_float($val)) {
$val = $this->addQuotes($val);
}
$set[] = $this->addIdentifierQuotes($var) . ' = ' . $val;
}
if ($set) {
// Use doQuery() to avoid opening implicit transactions (DBO_TRX)
$success = $this->doQuery('SET ' . implode(', ', $set));
if (!$success) {
wfLogDBError('Error setting MySQL variables on server {db_server} (check $wgSQLMode)', $this->getLogContext(array('method' => __METHOD__)));
$this->reportConnectionError('Error setting MySQL variables on server {db_server} (check $wgSQLMode)');
}
}
$this->mOpened = true;
return true;
}
/**
* Initialize an initial random state based off of whatever we can find
* @return string
*/
protected function initialRandomState()
{
// $_SERVER contains a variety of unstable user and system specific information
// It'll vary a little with each page, and vary even more with separate users
// It'll also vary slightly across different machines
$state = serialize($_SERVER);
// To try vary the system information of the state a bit more
// by including the system's hostname into the state
$state .= wfHostname();
// Try to gather a little entropy from the different php rand sources
$state .= rand() . uniqid(mt_rand(), true);
// Include some information about the filesystem's current state in the random state
$files = array();
// We know this file is here so grab some info about ourselves
$files[] = __FILE__;
// We must also have a parent folder, and with the usual file structure, a grandparent
$files[] = __DIR__;
$files[] = dirname(__DIR__);
// The config file is likely the most often edited file we know should
// be around so include its stat info into the state.
// The constant with its location will almost always be defined, as
// WebStart.php defines MW_CONFIG_FILE to $IP/LocalSettings.php unless
// being configured with MW_CONFIG_CALLBACK (e.g. the installer).
if (defined('MW_CONFIG_FILE')) {
$files[] = MW_CONFIG_FILE;
}
foreach ($files as $file) {
MediaWiki\suppressWarnings();
$stat = stat($file);
MediaWiki\restoreWarnings();
if ($stat) {
// stat() duplicates data into numeric and string keys so kill off all the numeric ones
foreach ($stat as $k => $v) {
if (is_numeric($k)) {
unset($k);
}
}
// The absolute filename itself will differ from install to install so don't leave it out
$path = realpath($file);
if ($path !== false) {
$state .= $path;
} else {
$state .= $file;
}
$state .= implode('', $stat);
} else {
// The fact that the file isn't there is worth at least a
// minuscule amount of entropy.
$state .= '0';
}
}
// Try and make this a little more unstable by including the varying process
// id of the php process we are running inside of if we are able to access it
if (function_exists('getmypid')) {
$state .= getmypid();
}
// If available try to increase the instability of the data by throwing in
// the precise amount of memory that we happen to be using at the moment.
if (function_exists('memory_get_usage')) {
$state .= memory_get_usage(true);
}
// It's mostly worthless but throw the wiki's id into the data for a little more variance
$state .= wfWikiID();
// If we have a secret key set then throw it into the state as well
global $wgSecretKey;
if ($wgSecretKey) {
$state .= $wgSecretKey;
}
return $state;
}