| 1 | <?php |
| 2 | /* |
| 3 | +--------------------------------------------------------------------+ |
| 4 | | CiviCRM version 5 | |
| 5 | +--------------------------------------------------------------------+ |
| 6 | | Copyright CiviCRM LLC (c) 2004-2018 | |
| 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 | * |
| 30 | * @package CRM |
| 31 | * @copyright CiviCRM LLC (c) 2004-2018 |
| 32 | */ |
| 33 | class CRM_Utils_Check { |
| 34 | // How often to run checks and notify admins about issues. |
| 35 | const CHECK_TIMER = 86400; |
| 36 | |
| 37 | /** |
| 38 | * @var array |
| 39 | * @link https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md |
| 40 | */ |
| 41 | protected static $severityList = array( |
| 42 | \Psr\Log\LogLevel::DEBUG, |
| 43 | \Psr\Log\LogLevel::INFO, |
| 44 | \Psr\Log\LogLevel::NOTICE, |
| 45 | \Psr\Log\LogLevel::WARNING, |
| 46 | \Psr\Log\LogLevel::ERROR, |
| 47 | \Psr\Log\LogLevel::CRITICAL, |
| 48 | \Psr\Log\LogLevel::ALERT, |
| 49 | \Psr\Log\LogLevel::EMERGENCY, |
| 50 | ); |
| 51 | |
| 52 | /** |
| 53 | * We only need one instance of this object, so we use the |
| 54 | * singleton pattern and cache the instance in this variable |
| 55 | * |
| 56 | * @var object |
| 57 | */ |
| 58 | static private $_singleton = NULL; |
| 59 | |
| 60 | /** |
| 61 | * Provide static instance of CRM_Utils_Check. |
| 62 | * |
| 63 | * @return CRM_Utils_Check |
| 64 | */ |
| 65 | public static function &singleton() { |
| 66 | if (!isset(self::$_singleton)) { |
| 67 | self::$_singleton = new CRM_Utils_Check(); |
| 68 | } |
| 69 | return self::$_singleton; |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * @return array |
| 74 | */ |
| 75 | public static function getSeverityList() { |
| 76 | return self::$severityList; |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * Display daily system status alerts (admin only). |
| 81 | */ |
| 82 | public function showPeriodicAlerts() { |
| 83 | if (CRM_Core_Permission::check('administer CiviCRM')) { |
| 84 | $session = CRM_Core_Session::singleton(); |
| 85 | if ($session->timer('check_' . __CLASS__, self::CHECK_TIMER)) { |
| 86 | |
| 87 | // Best attempt at re-securing folders |
| 88 | $config = CRM_Core_Config::singleton(); |
| 89 | $config->cleanup(0, FALSE); |
| 90 | |
| 91 | $statusMessages = array(); |
| 92 | $maxSeverity = 0; |
| 93 | foreach ($this->checkAll() as $message) { |
| 94 | if (!$message->isVisible()) { |
| 95 | continue; |
| 96 | } |
| 97 | if ($message->getLevel() >= 3) { |
| 98 | $maxSeverity = max($maxSeverity, $message->getLevel()); |
| 99 | $statusMessage = $message->getMessage(); |
| 100 | $statusMessages[] = $statusTitle = $message->getTitle(); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | if ($statusMessages) { |
| 105 | if (count($statusMessages) > 1) { |
| 106 | $statusTitle = self::toStatusLabel($maxSeverity); |
| 107 | $statusMessage = '<ul><li>' . implode('</li><li>', $statusMessages) . '</li></ul>'; |
| 108 | } |
| 109 | |
| 110 | $statusMessage .= '<p><a href="' . CRM_Utils_System::url('civicrm/a/#/status') . '">' . ts('View details and manage alerts') . '</a></p>'; |
| 111 | |
| 112 | $statusType = $maxSeverity >= 4 ? 'error' : 'alert'; |
| 113 | CRM_Core_Session::setStatus($statusMessage, $statusTitle, $statusType); |
| 114 | } |
| 115 | } |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | /** |
| 120 | * Sort messages based upon severity |
| 121 | * |
| 122 | * @param CRM_Utils_Check_Message $a |
| 123 | * @param CRM_Utils_Check_Message $b |
| 124 | * @return int |
| 125 | */ |
| 126 | public static function severitySort($a, $b) { |
| 127 | $aSeverity = $a->getLevel(); |
| 128 | $bSeverity = $b->getLevel(); |
| 129 | if ($aSeverity == $bSeverity) { |
| 130 | return strcmp($a->getName(), $b->getName()); |
| 131 | } |
| 132 | // The Message constructor guarantees that these will always be integers. |
| 133 | return ($aSeverity < $bSeverity); |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Get the integer value (useful for thresholds) of the severity. |
| 138 | * |
| 139 | * @param int|string $severity |
| 140 | * the value to look up |
| 141 | * @param bool $reverse |
| 142 | * whether to find the constant from the integer |
| 143 | * @return string|int |
| 144 | * @throws \CRM_Core_Exception |
| 145 | */ |
| 146 | public static function severityMap($severity, $reverse = FALSE) { |
| 147 | if ($reverse) { |
| 148 | if (isset(self::$severityList[$severity])) { |
| 149 | return self::$severityList[$severity]; |
| 150 | } |
| 151 | } |
| 152 | else { |
| 153 | // Lowercase string-based severities |
| 154 | $severity = strtolower($severity); |
| 155 | if (in_array($severity, self::$severityList)) { |
| 156 | return array_search($severity, self::$severityList); |
| 157 | } |
| 158 | } |
| 159 | throw new CRM_Core_Exception('Invalid PSR Severity Level'); |
| 160 | } |
| 161 | |
| 162 | /** |
| 163 | * Throw an exception if any of the checks fail. |
| 164 | * |
| 165 | * @param array|NULL $messages |
| 166 | * [CRM_Utils_Check_Message] |
| 167 | * @param string $threshold |
| 168 | * |
| 169 | * @throws \CRM_Core_Exception |
| 170 | * @throws \Exception |
| 171 | */ |
| 172 | public function assertValid($messages = NULL, $threshold = \Psr\Log\LogLevel::ERROR) { |
| 173 | if ($messages === NULL) { |
| 174 | $messages = $this->checkAll(); |
| 175 | } |
| 176 | $minLevel = self::severityMap($threshold); |
| 177 | $errors = array(); |
| 178 | foreach ($messages as $message) { |
| 179 | if ($message->getLevel() >= $minLevel) { |
| 180 | $errors[] = $message->toArray(); |
| 181 | } |
| 182 | } |
| 183 | if ($errors) { |
| 184 | throw new Exception("System $threshold: " . print_r($errors, TRUE)); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | /** |
| 189 | * Run all system checks. |
| 190 | * |
| 191 | * This functon is wrapped by the System.check api. |
| 192 | * |
| 193 | * Calls hook_civicrm_check() for extensions to add or modify messages. |
| 194 | * @link http://wiki.civicrm.org/confluence/display/CRMDOC/hook_civicrm_check |
| 195 | * |
| 196 | * @param bool $max |
| 197 | * Whether to return just the maximum non-hushed severity |
| 198 | * |
| 199 | * @return array |
| 200 | * Array of CRM_Utils_Check_Message objects |
| 201 | */ |
| 202 | public static function checkAll($max = FALSE) { |
| 203 | $messages = array(); |
| 204 | foreach (glob(__DIR__ . '/Check/Component/*.php') as $filePath) { |
| 205 | $className = 'CRM_Utils_Check_Component_' . basename($filePath, '.php'); |
| 206 | /* @var CRM_Utils_Check_Component $check */ |
| 207 | $check = new $className(); |
| 208 | if ($check->isEnabled()) { |
| 209 | $messages = array_merge($messages, $check->checkAll()); |
| 210 | } |
| 211 | } |
| 212 | |
| 213 | CRM_Utils_Hook::check($messages); |
| 214 | |
| 215 | uasort($messages, array(__CLASS__, 'severitySort')); |
| 216 | |
| 217 | $maxSeverity = 1; |
| 218 | foreach ($messages as $message) { |
| 219 | if (!$message->isVisible()) { |
| 220 | continue; |
| 221 | } |
| 222 | $maxSeverity = max(1, $message->getLevel()); |
| 223 | break; |
| 224 | } |
| 225 | |
| 226 | Civi::settings()->set('systemStatusCheckResult', $maxSeverity); |
| 227 | |
| 228 | return ($max) ? $maxSeverity : $messages; |
| 229 | } |
| 230 | |
| 231 | /** |
| 232 | * @param int $level |
| 233 | * @return string |
| 234 | */ |
| 235 | public static function toStatusLabel($level) { |
| 236 | switch ($level) { |
| 237 | case 7: |
| 238 | return ts('System Status: Emergency'); |
| 239 | |
| 240 | case 6: |
| 241 | return ts('System Status: Alert'); |
| 242 | |
| 243 | case 5: |
| 244 | return ts('System Status: Critical'); |
| 245 | |
| 246 | case 4: |
| 247 | return ts('System Status: Error'); |
| 248 | |
| 249 | case 3: |
| 250 | return ts('System Status: Warning'); |
| 251 | |
| 252 | case 2: |
| 253 | return ts('System Status: Notice'); |
| 254 | |
| 255 | default: |
| 256 | return ts('System Status: Ok'); |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | } |