public function send404ImageNotFound()
{
$this->mSpecial->getOutput()->disable();
# No HTML output
StreamFile::prepareForStream(null, null, null, true);
# send 404 Not Found
}
/**
* @see FileBackend::streamFile()
* @return Status
*/
public final function streamFile(array $params)
{
wfProfileIn(__METHOD__);
wfProfileIn(__METHOD__ . '-' . $this->name);
$status = Status::newGood();
$info = $this->getFileStat($params);
if (!$info) {
// let StreamFile handle the 404
$status->fatal('backend-fail-notexists', $params['src']);
}
// Set output buffer and HTTP headers for stream
$extraHeaders = isset($params['headers']) ? $params['headers'] : array();
$res = StreamFile::prepareForStream($params['src'], $info, $extraHeaders);
if ($res == StreamFile::NOT_MODIFIED) {
// do nothing; client cache is up to date
} elseif ($res == StreamFile::READY_STREAM) {
wfProfileIn(__METHOD__ . '-send');
wfProfileIn(__METHOD__ . '-send-' . $this->name);
$status = $this->doStreamFile($params);
wfProfileOut(__METHOD__ . '-send-' . $this->name);
wfProfileOut(__METHOD__ . '-send');
} else {
$status->fatal('backend-fail-stream', $params['src']);
}
wfProfileOut(__METHOD__ . '-' . $this->name);
wfProfileOut(__METHOD__);
return $status;
}
public final function streamFile(array $params)
{
$ps = Profiler::instance()->scopedProfileIn(__METHOD__ . "-{$this->name}");
$status = Status::newGood();
$info = $this->getFileStat($params);
if (!$info) {
// let StreamFile handle the 404
$status->fatal('backend-fail-notexists', $params['src']);
}
// Set output buffer and HTTP headers for stream
$extraHeaders = isset($params['headers']) ? $params['headers'] : array();
$res = StreamFile::prepareForStream($params['src'], $info, $extraHeaders);
if ($res == StreamFile::NOT_MODIFIED) {
// do nothing; client cache is up to date
} elseif ($res == StreamFile::READY_STREAM) {
$status = $this->doStreamFile($params);
if (!$status->isOK()) {
// Per bug 41113, nasty things can happen if bad cache entries get
// stuck in cache. It's also possible that this error can come up
// with simple race conditions. Clear out the stat cache to be safe.
$this->clearCache(array($params['src']));
$this->deleteFileCache($params['src']);
trigger_error("Bad stat cache or race condition for file {$params['src']}.");
}
} else {
$status->fatal('backend-fail-stream', $params['src']);
}
return $status;
}
