/**
* Force deletion on a cached resource.
*
* @param {string} $key Identifier of target cache.
* @param {?string} $hash Target revision to delete, all revisions will be deleted if omitted.
*/
public static function delete($key, $hash = '*')
{
$res = self::resolve($key, $hash);
// Skip the delete if nothing is found.
if ($res === null) {
return;
}
if ($res->isFile()) {
// Remove target revision(s).
if (!$res->isWritable()) {
Log::warning('Target file is not writable, deletion skipped.');
} else {
$path = $res->getRealPath();
unlink($path);
$path = dirname($path);
// Remove the directory if empty.
$res = new \RecursiveDirectoryIterator($path, \FilesystemIterator::KEY_AS_PATHNAME | \FilesystemIterator::CURRENT_AS_FILEINFO | \FilesystemIterator::SKIP_DOTS);
if ($res->isDir() && !$res->hasChildren()) {
rmdir($path);
}
}
} else {
if ($res->isDir()) {
$cacheDirectory = $res->getRealPath();
foreach ($res as $file) {
if ($file->isFile()) {
unlink($file->getRealPath());
} else {
if ($file->isDir()) {
rmdir($file->getRealPath());
}
}
}
rmdir($cacheDirectory);
}
}
}
Database::unlockTables(true);
Database::rollback();
Log::debug('No more jobs to do, suicide.');
die;
}
$processContents = (array) ContentDecoder::json($process[Node::FIELD_VIRTUAL], 1);
unset($process[Node::FIELD_VIRTUAL]);
$process += $processContents;
unset($processContents);
$res = Database::query('UPDATE `' . FRAMEWORK_COLLECTION_PROCESS . '` SET `pid` = ?
WHERE `id` = ? AND `pid` IS NULL LIMIT 1', [getmypid(), $process['id']]);
// Commit transaction
Database::unlockTables(true);
Database::commit();
if ($res->rowCount() < 1) {
Log::warning('Unable to update process pid, worker exits.');
die;
} else {
$process['pid'] = getmypid();
$process[Node::FIELD_COLLECTION] = FRAMEWORK_COLLECTION_PROCESS;
}
// Check if $env specified in option
if (@$_SERVER['env']) {
$_SERVER['env'] = ContentDecoder::json($_SERVER['env'], 1);
}
// More debug logs
Log::debug("Execute process: {$process['command']}");
// Spawn process and retrieve the pid
$proc = false;
do {
$proc = proc_open($process['command'], array(array('pipe', 'r'), array('pipe', 'w'), array('pipe', 'e')), $pipes, null, @$_SERVER['env']);
/**
* Process next task with POST data.
*/
public function process()
{
// note: Some tasks can work without post data, but request method must be POST.
if (!$this->__isSuperUser && $this->__request->method() != 'post') {
$this->__response->status(405);
// Method not allowed
return;
}
// WorkInstance
if (!$this->identity()) {
$this->__response->status(404);
// WorkInstance not found
return;
}
// TaskInstance
$instance = $this->nextTask();
if (!$instance) {
$this->__response->status(404);
// TaskInstance not foudn
return;
}
// release mutable lock for work instance initialization.
$this->_immutable = false;
// remove tasks to prevent unwanted change.
$tasks = $this->tasks;
unset($this->tasks);
// creates $this->dataStore if not yet.
if (empty($this->dataStore)) {
$this->dataStore = array();
}
unset($this->lastError);
// immutable marker to prevent direct modifications to the internal data.
$this->_immutable = true;
// note: Send bayeux message to groups with permission to this task.
$userGroups = $instance->userGroups();
try {
// Note: Since $this->dataStore is an array, it is mutable itself.
$promise = $instance->process();
} catch (\Exception $e) {
Log::warning('Task process exception.', array_filter(array('message' => $e->getMessage(), 'code' => $e->getCode(), 'file' => $e->getFile(), 'line' => $e->getLine(), 'trace' => $e->getTrace())));
$lastError = array('message' => $this->__response->__($e->getMessage()), 'code' => $e->getCode());
// note: Failure on Headless tasks will revert to previous task.
if (@$instance->type == 'Headless') {
$deferred = new Deferred();
$deferred->reject($lastError['message'], $lastError['code']);
$promise = $deferred->promise();
unset($deferred);
} else {
$this->_immutable = false;
$this->lastError = $lastError;
}
unset($lastError);
}
$this->_immutable = false;
$result = array();
$saveFunc = function () use(&$result) {
unset($this->timestamp);
$this->save($result);
};
if (isset($promise)) {
// note: rejection here means revert to previous task
$promise->fail(function ($error, $code = null) use($instance, $tasks) {
$this->lastError = array_filter(array('message' => $error, 'code' => $code));
// revert to previous task
$prevTask = array_search($instance->identity(), array_map(invokes('identity'), $tasks));
$prevTask = @$tasks[$prevTask - 1];
// fallback to the first task
if (!$prevTask) {
$prevTask = reset($tasks);
}
$this->nextTask = util::packUuid($prevTask->identity());
});
// note: resolution always advances to next task
$promise->done(function () use($instance, $tasks) {
$nextTask = array_search($instance->identity(), array_map(invokes('identity'), $tasks));
$nextTask = @$tasks[$nextTask + 1];
if ($nextTask) {
$this->nextTask = util::packUuid($nextTask->identity());
} else {
$this->state = static::STATE_CLOSE;
$this->nextTask = null;
}
});
// note: controller script must call resolve() or reject() to make this happen.
$promise->always($saveFunc);
} else {
$saveFunc();
}
unset($saveFunc);
// note: Merge user groups before and after task processing
if ($this->nextTask) {
$userGroups = array_unique(array_merge($userGroups, $this->nextTask()->userGroups()));
}
foreach ($userGroups as $userGroup) {
Bayeux::sendMessage("/group/{$userGroup}", array('action' => 'update', '@collection' => 'WorkInstance', 'timestamp' => $this->timestamp));
}
if (@$result['error']) {
$this->__response->status(500);
return $result;
} else {
// note; User might no longer has access to the updated work instance.
if ($this->data()) {
$this->__response->status(200);
return $this;
} else {
$this->__response->status(204);
}
}
}
