mise à jour ansible glpi

Mission4/roles/glpi/files/fusioninventory/inc/dblock.class.php

@@ -0,0 +1,165 @@
+<?php
+
+/**
+ * FusionInventory
+ *
+ * Copyright (C) 2010-2016 by the FusionInventory Development Team.
+ *
+ * http://www.fusioninventory.org/
+ * https://github.com/fusioninventory/fusioninventory-for-glpi
+ * http://forge.fusioninventory.org/
+ *
+ * ------------------------------------------------------------------------
+ *
+ * LICENSE
+ *
+ * This file is part of FusionInventory project.
+ *
+ * FusionInventory is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * FusionInventory is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with FusionInventory. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * ------------------------------------------------------------------------
+ *
+ * This file is used to manage lock during inventory.
+ *
+ * ------------------------------------------------------------------------
+ *
+ * @package   FusionInventory
+ * @author    Walid Nouh
+ * @copyright Copyright (c) 2010-2016 FusionInventory team
+ * @license   AGPL License 3.0 or (at your option) any later version
+ *            http://www.gnu.org/licenses/agpl-3.0-standalone.html
+ * @link      http://www.fusioninventory.org/
+ * @link      https://github.com/fusioninventory/fusioninventory-for-glpi
+ *
+ */
+
+if (!defined('GLPI_ROOT')) {
+   die("Sorry. You can't access directly to this file");
+}
+
+/**
+ * Manage db locks during inventory.
+ */
+class PluginFusioninventoryDBLock {
+
+   //Number of milliseconds to wait each time we check if the lock is set
+   const MILLISECOND_LOCK_WAIT        = 100000;
+
+   //Number of second to wait before forcing release of the lock
+   const SECONDS_TO_RELEASE_LOCK      = 600;
+
+   //Number of second that is supposed to be the maximum to send to an agent
+   //an error message explaining that a lock is still in place
+   const SECONDS_BEFORE_SENDING_ERROR = 5;
+
+   /**
+   * Put a lock to prevent import of software/software version
+   * @since 9.2+2.0
+   *
+   * @param string $type type of lock ('software' or 'softwareversion')
+   * @param string callback_method the name of the method to call when checking the lock
+   * @return boolean the result of the lock
+   */
+   function setLock($type, $value = '1', $callback_method = false) {
+      global $DB, $CFG_GLPI;
+
+      $result = true;
+      $table  = "glpi_plugin_fusioninventory_dblock".$type;
+      if ($DB->tableExists($table)) {
+
+         $start_time = date('U');
+         //Set a lock for softwares to prevent new software import
+         $CFG_GLPI["use_log_in_files"] = false;
+         $query = $DB->buildInsert(
+            $table, [
+               'value' => $value
+            ]
+         );
+
+         while (!$DB->query($query)) {
+            usleep(self::MILLISECOND_LOCK_WAIT);
+            if ($callback_method) {
+               $result = $this->checkLockForAgents($start_time);
+               if (!$result) {
+                  break;
+               }
+            }
+         }
+         $CFG_GLPI["use_log_in_files"] = true;
+      }
+      return $result;
+   }
+
+   /**
+   * Check if a lock error message should be sent an agent
+   * @since 9.2+2.0
+   *
+   * @param string $start_time the time where we start trying to set the lock
+   * @return boolean true if no error message should
+   */
+   function checkLockForAgents($start_time) {
+      if ((date('U') - $start_time) > self::SECONDS_BEFORE_SENDING_ERROR) {
+         $communication = new PluginFusioninventoryCommunication();
+         $communication->setMessage("<?xml version='1.0' encoding='UTF-8'?>
+      <REPLY>
+      <ERROR>ERROR: Timeout for DB lock based on name</ERROR>
+      </REPLY>");
+         $communication->sendMessage($_SESSION['plugin_fusioninventory_compressmode']);
+         return false;
+      }
+      return true;
+   }
+
+   /**
+   * Put a lock to prevent import of software/software version
+   * @since 9.2+2.0
+   *
+   * @param string $type type of lock ('software' or 'softwareversion')
+   * @param string $where the SQL where clause to use to release lock (default '')
+   */
+   function releaseLock($type, $where = []) {
+      global $DB;
+
+      if (empty($where)) {
+         $where = ['value' => '1'];
+      }
+      $table = "glpi_plugin_fusioninventory_dblock".$type;
+      if ($DB->tableExists($table)) {
+         //Release the lock
+         $DB->delete(
+            $table,
+            $where
+         );
+      }
+   }
+
+   /**
+   * Clean all locks lasting more than 10 minutes
+   * @since 9.2+2.0
+   *
+   */
+   function releaseAllLocks() {
+      $where = ['date' => ['<', new \QueryExpression("CURRENT_TIMESTAMP() - ".self::SECONDS_TO_RELEASE_LOCK)]];
+      $tables = [
+         'inventorynames',
+         'inventories',
+         'softwares',
+         'softwareversions'
+      ];
+
+      foreach ($tables as $table) {
+         $this->releaseLock($table, $where);
+      }
+   }
+}