public function handleQueue()
{
global $mtlda, $config, $audit, $mbus;
if ($config->isCreatePreviewImageOnImport()) {
try {
$imagectrl = new \Mtlda\Controllers\ImageController();
} catch (\Exception $e) {
static::raiseError(__METHOD__ . '(), unable to load ImageController!');
return false;
}
}
if ($config->isPdfSigningEnabled() && ($sign_pos = $config->getPdfSigningIconPosition()) === false) {
static::raiseError(__METHOD__ . '(), PDF-Signing is enabled but no signing-icon-position is defined!');
return false;
}
try {
$storage = new StorageController();
} catch (\Exception $e) {
static::raiseError(__METHOD__ . ', failed to load StorageController!');
return false;
}
$files = array();
if ($this->scanDirectory(self::INCOMING_DIRECTORY, $files) === false) {
static::raiseError(__CLASS__ . '::scanDirectory() returned false!');
return false;
}
if (!isset($files) || empty($files)) {
return true;
}
$start = 10;
$end = 90;
$cnt = 0;
$total = count($files);
$steps = ($end - $start) / $total;
foreach ($files as $file) {
$cnt += 1;
$lockfile = "{$file['fqpn']}.lock";
$mbus->sendMessageToClient('import-reply', "Importing file {$cnt} of {$total}.", floor($start + $cnt * $steps) . '%');
// if file has vanished in the meantime.
if (!file_exists($file['fqpn'])) {
continue;
}
if (file_exists($lockfile)) {
if (($timestamp = file_get_contents($lockfile)) === false) {
static::raiseError(__METHOD__ . "(), failed to read {$lockfile}!");
return false;
}
if (!isset($timestamp) || empty($timestamp) || !is_numeric($timestamp)) {
static::raiseError(__METHOD__ . "(), {$lockfile} does not contain a timestamp!");
return false;
}
if (time() < $timestamp + 5 * 60) {
continue;
}
}
if (file_put_contents($lockfile, time()) === false) {
static::raiseError(__METHOD__ . "(), failed to write timestamp into {$lockfile}!");
return false;
}
if (($guid = $mtlda->createGuid()) === false) {
static::raiseError(get_class($mtlda) . '::createGuid() returned false!');
return false;
}
try {
$queueitem = new \Mtlda\Models\QueueItemModel();
} catch (\Exception $e) {
static::raiseError(__METHOD__ . '(), failed to load QueueItemModel!');
return false;
}
try {
$queueitem->setGuid($guid);
$queueitem->setFileName($file['filename']);
$queueitem->setFileSize($file['size']);
$queueitem->setFileHash($file['hash']);
$queueitem->setState('new');
$queueitem->setTime(microtime(true));
$queueitem->setProcessingFlag(false);
if ($config->isPdfSigningEnabled()) {
$queueitem->setSigningIconPosition($sign_pos);
}
} catch (\Exception $e) {
static::raiseError('Failed to prepare QueueItemModel! ', false, $e);
return false;
}
$in_file = $file['fqpn'];
$in_dir = dirname($in_file);
if (!file_exists($in_file)) {
static::raiseError(__METHOD__ . "(), file {$in_file} does not exist!");
return false;
}
if (($dsc_file = preg_replace('/\\.pdf$/i', '.dsc', $in_file)) === false) {
static::raiseError(__METHOD__ . '(), preg_replace() returned false!');
return false;
}
if (($work_file = $queueitem->getFilePath()) === false) {
static::raiseError(get_class($queueitem) . '::getFilePath() returned false!');
return false;
}
if (isset($dsc_file) && !empty($dsc_file) && file_exists($dsc_file)) {
if (($description = file_get_contents($dsc_file)) === false) {
static::raiseError(__METHOD__ . "(), file_get_contents({$dsc_file}) returned false!");
return false;
}
if (!$queueitem->setDescription($description)) {
static::raiseError(get_class($queueitem) . '::setDescription() returned false!');
return false;
}
}
// create the target directory structure
if (!$storage->createDirectoryStructure(dirname($work_file))) {
static::raiseError(get_class($storage) . '::createDirectoryStructure() returned false!');
return false;
}
if (copy($in_file, $work_file) === false) {
static::raiseError(__METHOD__ . "(), copy({$in_file}, {$work_file}) returned false!");
return false;
}
if (!$queueitem->save()) {
$queueitem->delete();
static::raiseError(get_class($queueitem) . '::save() returned false!');
return false;
}
if (!unlink($in_file)) {
static::raiseError(__METHOD__ . "(), unlink({$in_file}) failed!");
return false;
}
if (isset($dsc_file) && !empty($dsc_file) && file_exists($dsc_file)) {
if (!unlink($dsc_file)) {
static::raiseError(__METHOD__ . "(), unlink({$dsc_file}) failed!");
return false;
}
}
if ($in_dir != self::INCOMING_DIRECTORY) {
if (!$this->unlinkDirectory($in_dir)) {
static::raiseError(__CLASS__ . '::unlinkDirectory() returned false!');
return false;
}
}
$json_str = json_encode(array('file_name' => $file['filename'], 'file_size' => $file['size'], 'file_hash' => $file['hash'], 'state' => 'new'));
if (!$json_str) {
$queueitem->delete();
static::raiseError(__METHOD__ . '(), json_encode() returned false!');
return false;
}
try {
$audit->log($json_str, "import", "queue", $guid);
} catch (\Exception $e) {
$queueitem->delete();
static::raiseError(get_class($audit) . '::log() returned false!');
return false;
}
if ($config->isCreatePreviewImageOnImport()) {
if (!$imagectrl->createPreviewImage($queueitem, false)) {
static::raiseError(get_class($imagectrl) . '::savePreviewImage() returned false!');
return false;
}
}
if (file_exists($lockfile) && !unlink($lockfile)) {
static::raiseError(__METHOD__ . "(), unlink({$lockfile}) failed!");
return false;
}
}
return true;
}
protected function handlePreviewRequest($job)
{
global $mtlda, $mbus;
if (!$mbus->sendMessageToClient('preview-reply', 'Preparing', '10%')) {
static::raiseError(get_class($mbus) . '::sendMessageToClient() returned false!');
return false;
}
if (empty($job) || !is_a($job, 'Thallium\\Models\\JobModel')) {
static::raiseError(__METHOD__ . '() requires a JobModel reference as parameter!');
return false;
}
if (!$job->hasParameters() || ($preview_request = $job->getParameters()) === false) {
static::raiseError(get_class($job) . '::getParameters() returned false!');
return false;
}
if (!is_object($preview_request)) {
static::raiseError(get_class($job) . '::getParameters() returned invalid data!');
return false;
}
if (!isset($preview_request->id) || empty($preview_request->id) || !isset($preview_request->guid) || empty($preview_request->guid)) {
static::raiseError(__METHOD__ . '() preview-request is incomplete!');
return false;
}
if ($preview_request->id != 'all' && !$mtlda->isValidId($preview_request->id)) {
static::raiseError(__METHOD__ . '() \\$id is invalid!');
return false;
}
if ($preview_request->guid != 'all' && !$mtlda->isValidGuidSyntax($preview_request->guid)) {
static::raiseError(__METHOD__ . '() \\$guid is invalid!');
return false;
}
if (!$mbus->sendMessageToClient('preview-reply', 'Preview...', '20%')) {
static::raiseError(get_class($mbus) . '::sendMessageToClient() returned false!');
return false;
}
if (!isset($preview_request->model) || empty($preview_request->model)) {
static::raiseError(__METHOD__ . '(), preview-request does not contain model information!');
return false;
}
if ($preview_request->model != 'queueitem') {
static::raiseError(__METHOD__ . '(), unsupported model!');
return false;
}
try {
$queueitem = new \Mtlda\Models\QueueItemModel(array('idx' => $preview_request->id, 'guid' => $preview_request->guid));
} catch (\Exception $e) {
static::raiseError(__METHOD__ . '(), failed to load QueueItemModel!');
return false;
}
try {
$image = new \Mtlda\Controllers\ImageController();
} catch (\Exception $e) {
static::raiseError(__METHOD__ . '(), failed to load ImageController!');
return false;
}
try {
$pdf = new \FPDI();
} catch (\Exception $e) {
static::raiseError(__METHOD__ . '(), failed to load FPDI!');
return false;
}
if (($fqfn = $queueitem->getFilePath()) === false) {
static::raiseError(get_class($queueitem) . '::getFilePath() returned false!');
return false;
}
if (!isset($fqfn) || empty($fqfn)) {
static::raiseError(get_class($queueitem) . '::getFilePath() returned an invalid file name!');
return false;
}
if (!file_exists($fqfn)) {
static::raiseError(__METHOD__ . "(), file {$fqfn} does not exist!");
return false;
}
if (!is_readable($fqfn)) {
static::raiseError(__METHOD__ . "(), file {$fqfn} is not readable!");
return false;
}
try {
$page_count = $pdf->setSourceFile($fqfn);
} catch (\Exception $e) {
static::raiseError(getClass($pdf) . '::setSourceFile() has thrown an exception! ' . $e->getMessage());
return false;
}
for ($page_no = 1; $page_no <= $page_count; $page_no++) {
if (!$image->createPreviewImage($queueitem, false, $page_no, 300)) {
static::raiseError(get_class($image) . '::createPreviewImage() returned false!');
return false;
}
if (!$image->createPreviewImage($queueitem, false, $page_no, 'full')) {
static::raiseError(get_class($image) . '::createPreviewImage() returned false!');
return false;
}
}
try {
@$pdf->cleanUp();
} catch (\Exception $e) {
static::raiseError(get_class($pdf) . '::cleanUp() has thrown an exception! ' . $e->getMessage());
return false;
}
if (!$mbus->sendMessageToClient('preview-reply', 'Done', '100%')) {
static::raiseError(get_class($mbus) . '::sendMessageToClient() returned false!');
return false;
}
return true;
}
