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<?php |
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/** |
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* @copyright Copyright (c) 2017, Matias De lellis <[email protected]> |
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* @copyright Copyright (c) 2018, Branko Kokanovic <[email protected]> |
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* |
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* @author Branko Kokanovic <[email protected]> |
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* |
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* @license GNU AGPL version 3 or any later version |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*/ |
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namespace OCA\FaceRecognition\BackgroundJob\Tasks; |
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use OCP\IConfig; |
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use OCA\FaceRecognition\BackgroundJob\FaceRecognitionBackgroundTask; |
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use OCA\FaceRecognition\BackgroundJob\FaceRecognitionContext; |
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use OCA\FaceRecognition\Helper\MemoryLimits; |
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use OCA\FaceRecognition\Helper\Requirements; |
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use OCA\FaceRecognition\Migration\AddDefaultFaceModel; |
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/** |
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* Check all requirements before we start engaging in lengthy background task. |
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*/ |
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class CheckRequirementsTask extends FaceRecognitionBackgroundTask { |
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/** @var IConfig Config */ |
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private $config; |
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/** |
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* @param IConfig $config Config |
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*/ |
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public function __construct(IConfig $config) { |
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parent::__construct(); |
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$this->config = $config; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function description() { |
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return "Check all requirements"; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function execute(FaceRecognitionContext $context) { |
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$this->setContext($context); |
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$model = intval($this->config->getAppValue('facerecognition', 'model', AddDefaultFaceModel::DEFAULT_FACE_MODEL_ID)); |
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$req = new Requirements($context->appManager, $model); |
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if (!$req->pdlibLoaded()) { |
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$error_message = "PDLib is not loaded. Cannot continue"; |
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$this->logInfo($error_message); |
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return false; |
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} |
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if (!$req->modelFilesPresent()) { |
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$error_message = |
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"Files of model with ID ' . $model . ' are not present in models/ directory.\n" . |
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"Please contact administrator to change models you are using for face recognition\n" . |
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"or reinstall application. File an issue here if that doesn\'t help: https://github.com/matiasdelellis/facerecognition/issues"; |
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$this->logInfo($error_message); |
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return false; |
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} |
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// Determine the system memory with some considerations. |
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$memoryAvailable = MemoryLimits::getAvailableMemory(); |
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if ($memoryAvailable <= 0) { |
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// We cannot determine amount of memory to give to face recognition CNN. |
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// We will hardcode it here to 1GB, but plan is to expose this to user in future. |
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// TODO: allow user to choose "recognition quality", which will map to given memory. |
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// If user explicitely set something, we ignore getting memory from system. |
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$this->logDebug("Cannot detect amount of memory given to PHP process. Using 1GB for image processing"); |
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$memoryAvailable = 1024 * 1024 * 1024; |
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} |
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// Apply some prudent limits. |
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if ($memoryAvailable < 1024 * 1024 * 1024) { |
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$error_message = |
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"\n" . |
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"Seems that you have only " . intval($memoryAvailable / (1024 * 1024)). "MB of memory given to PHP.\n" . |
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"Face recognition application requires at least 1 GB. You need to change your memory_limit in php.ini.\n" . |
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"Check https://secure.php.net/manual/en/ini.core.php#ini.memory-limit for details.\n" . |
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"If you already set this to unlimited, it seems your system is not having enough RAM memory."; |
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$this->logInfo($error_message); |
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return false; |
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} else { |
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$this->logDebug(sprintf('Found %d MB available to PHP.', $systemMemory / (1024 * 1024))); |
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// No point going above 4GB ("4GB should be enough for everyone") |
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if ($memoryAvailable > 4 * 1024 * 1024 * 1024) { |
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$this->logDebug('Capping used memory to maximum of 4GB'); |
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$memoryAvailable = 4 * 1024 * 1024 * 1024; |
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} |
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} |
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// Apply admin setting limit. |
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$memorySetting = $this->config->getAppValue('facerecognition', 'memory-limits', '-1'); |
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if ($memorySetting > 0) { |
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if ($memorySetting > $memoryAvailable) { |
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$error_message = |
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"\n" . |
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"Seems that you configured" . intval($memorySetting / (1024 * 1024)) . " MB of memory, however, this exceeds" . |
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"detected as maximum for PHP: " . intval($memoryAvailable / (1024 * 1024)). "MB.\n" . |
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"We will ignore the FaceRecognition settings, and we will limit to that."; |
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$this->logInfo($error_message); |
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} |
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else { |
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$this->logInfo("Applying the memory limit to " . intval($memorySetting / (1024*1024)) . "MB configured in settings."); |
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$memoryAvailable = $memorySetting; |
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} |
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} |
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$context->propertyBag['memory'] = $memoryAvailable; |
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return true; |
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} |
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} |
matiasdelellis /
facerecognition
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