Cache.php
90 lines
| 1 | <?php |
| 2 | /** |
| 3 | * Piwik - free/libre analytics platform |
| 4 | * |
| 5 | * @link http://piwik.org |
| 6 | * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later |
| 7 | */ |
| 8 | |
| 9 | namespace Piwik\Config; |
| 10 | |
| 11 | use Piwik\Cache\Backend\File; |
| 12 | use Piwik\Common; |
| 13 | use Piwik\Filesystem; |
| 14 | use Piwik\Piwik; |
| 15 | use Piwik\Url; |
| 16 | |
| 17 | /** |
| 18 | * Exception thrown when the config file doesn't exist. |
| 19 | */ |
| 20 | class Cache extends File |
| 21 | { |
| 22 | private $host = ''; |
| 23 | |
| 24 | public function __construct() |
| 25 | { |
| 26 | $this->host = $this->getHost(); |
| 27 | |
| 28 | // because the config is not yet loaded we cannot identify the instanceId... |
| 29 | // need to use the hostname |
| 30 | $dir = $this->makeCacheDir($this->host); |
| 31 | |
| 32 | parent::__construct($dir); |
| 33 | } |
| 34 | |
| 35 | private function makeCacheDir($host) |
| 36 | { |
| 37 | return PIWIK_INCLUDE_PATH . '/tmp/' . $host . '/cache/tracker'; |
| 38 | } |
| 39 | |
| 40 | public function isValidHost($mergedConfigSettings) |
| 41 | { |
| 42 | if (!isset($mergedConfigSettings['General']['trusted_hosts']) || !is_array($mergedConfigSettings['General']['trusted_hosts'])) { |
| 43 | return false; |
| 44 | } |
| 45 | // note: we do not support "enable_trusted_host_check" to keep things secure |
| 46 | return in_array($this->host, $mergedConfigSettings['General']['trusted_hosts'], true); |
| 47 | } |
| 48 | |
| 49 | private function getHost() |
| 50 | { |
| 51 | $host = Url::getHost($checkIfTrusted = false); |
| 52 | $host = Url::getHostSanitized($host); // Remove any port number to get actual hostname |
| 53 | $host = Common::sanitizeInputValue($host); |
| 54 | |
| 55 | if (empty($host) |
| 56 | || strpos($host, '..') !== false |
| 57 | || strpos($host, '\\') !== false |
| 58 | || strpos($host, '/') !== false) { |
| 59 | throw new \Exception('Unsupported host'); |
| 60 | } |
| 61 | |
| 62 | $this->host = $host; |
| 63 | |
| 64 | return $host; |
| 65 | } |
| 66 | |
| 67 | public function doDelete($id) |
| 68 | { |
| 69 | // when the config changes, we need to invalidate the config caches for all configured hosts as well, not only |
| 70 | // the currently trusted host |
| 71 | $hosts = Url::getTrustedHosts(); |
| 72 | $initialDir = $this->directory; |
| 73 | |
| 74 | foreach ($hosts as $host) |
| 75 | { |
| 76 | $dir = $this->makeCacheDir($host); |
| 77 | if (@is_dir($dir)) { |
| 78 | $this->directory = $dir; |
| 79 | $success = parent::doDelete($id); |
| 80 | if ($success) { |
| 81 | Piwik::postEvent('Core.configFileDeleted', array($this->getFilename($id))); |
| 82 | } |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | $this->directory = $initialDir; |
| 87 | } |
| 88 | |
| 89 | } |
| 90 |