| 1 | <?php |
| 2 | /* |
| 3 | +--------------------------------------------------------------------+ |
| 4 | | CiviCRM version 4.7 | |
| 5 | +--------------------------------------------------------------------+ |
| 6 | | Copyright CiviCRM LLC (c) 2004-2015 | |
| 7 | +--------------------------------------------------------------------+ |
| 8 | | This file is a part of CiviCRM. | |
| 9 | | | |
| 10 | | CiviCRM is free software; you can copy, modify, and distribute it | |
| 11 | | under the terms of the GNU Affero General Public License | |
| 12 | | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. | |
| 13 | | | |
| 14 | | CiviCRM is distributed in the hope that it will be useful, but | |
| 15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 17 | | See the GNU Affero General Public License for more details. | |
| 18 | | | |
| 19 | | You should have received a copy of the GNU Affero General Public | |
| 20 | | License and the CiviCRM Licensing Exception along | |
| 21 | | with this program; if not, contact CiviCRM LLC | |
| 22 | | at info[AT]civicrm[DOT]org. If you have questions about the | |
| 23 | | GNU Affero General Public License or the licensing of CiviCRM, | |
| 24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | |
| 25 | +--------------------------------------------------------------------+ |
| 26 | */ |
| 27 | |
| 28 | /** |
| 29 | * Class CRM_Utils_Cache_SerializeCache |
| 30 | */ |
| 31 | class CRM_Utils_Cache_SerializeCache implements CRM_Utils_Cache_Interface { |
| 32 | |
| 33 | /** |
| 34 | * The cache storage container, an array by default, stored in a file under templates |
| 35 | */ |
| 36 | private $_cache; |
| 37 | |
| 38 | /** |
| 39 | * Constructor. |
| 40 | * |
| 41 | * @param array $config |
| 42 | * An array of configuration params. |
| 43 | * |
| 44 | * @return \CRM_Utils_Cache_SerializeCache |
| 45 | */ |
| 46 | public function __construct($config) { |
| 47 | $this->_cache = array(); |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * @param $key |
| 52 | * |
| 53 | * @return string |
| 54 | */ |
| 55 | public function fileName($key) { |
| 56 | if (strlen($key) > 50) { |
| 57 | return CIVICRM_TEMPLATE_COMPILEDIR . "CRM_" . md5($key) . ".php"; |
| 58 | } |
| 59 | return CIVICRM_TEMPLATE_COMPILEDIR . $key . ".php"; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * @param string $key |
| 64 | * |
| 65 | * @return mixed |
| 66 | */ |
| 67 | public function get($key) { |
| 68 | if (array_key_exists($key, $this->_cache)) { |
| 69 | return $this->_cache[$key]; |
| 70 | } |
| 71 | |
| 72 | if (!file_exists($this->fileName($key))) { |
| 73 | return; |
| 74 | } |
| 75 | $this->_cache[$key] = unserialize(substr(file_get_contents($this->fileName($key)), 8)); |
| 76 | return $this->_cache[$key]; |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * @param string $key |
| 81 | * @param mixed $value |
| 82 | */ |
| 83 | public function set($key, &$value) { |
| 84 | if (file_exists($this->fileName($key))) { |
| 85 | return; |
| 86 | } |
| 87 | $this->_cache[$key] = $value; |
| 88 | file_put_contents($this->fileName($key), "<?php //" . serialize($value)); |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * @param string $key |
| 93 | */ |
| 94 | public function delete($key) { |
| 95 | if (file_exists($this->fileName($key))) { |
| 96 | unlink($this->fileName($key)); |
| 97 | } |
| 98 | unset($this->_cache[$key]); |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * @param null $key |
| 103 | */ |
| 104 | public function flush($key = NULL) { |
| 105 | $prefix = "CRM_"; |
| 106 | if (!$handle = opendir(CIVICRM_TEMPLATE_COMPILEDIR)) { |
| 107 | return; // die? Error? |
| 108 | } |
| 109 | while (FALSE !== ($entry = readdir($handle))) { |
| 110 | if (substr($entry, 0, 4) == $prefix) { |
| 111 | unlink(CIVICRM_TEMPLATE_COMPILEDIR . $entry); |
| 112 | } |
| 113 | } |
| 114 | closedir($handle); |
| 115 | unset($this->_cache); |
| 116 | $this->_cache = array(); |
| 117 | } |
| 118 | |
| 119 | } |