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<?php |
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/** |
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* ownCloud - Richdocuments App |
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* |
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* @author Ashod Nakashian |
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* @copyright 2016 Ashod Nakashian [email protected] |
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* |
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* This file is licensed under the Affero General Public License version 3 or |
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* later. |
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*/ |
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namespace OCA\Richdocuments\Db; |
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use \OCA\Richdocuments\Download; |
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use \OCA\Richdocuments\DownloadResponse; |
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class Wopi extends \OCA\Richdocuments\Db{ |
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const DB_TABLE = '`*PREFIX*richdocuments_wopi`'; |
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// Tokens expire after this many seconds (not defined by WOPI specs). |
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const TOKEN_LIFETIME_SECONDS = 1800; |
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protected $tableName = '`*PREFIX*richdocuments_wopi`'; |
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protected $insertStatement = 'INSERT INTO `*PREFIX*richdocuments_wopi` (`fileid`, `owner_uid`, `editor_uid`, `version`, `canwrite`, `server_host`, `token`, `expiry`) |
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VALUES (?, ?, ?, ?, ?, ?, ?, ?)'; |
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protected $loadStatement = 'SELECT * FROM `*PREFIX*richdocuments_wopi` WHERE `token`= ?'; |
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public function generateFileToken($fileId, $owner, $editor, $version, $updatable, $serverHost) { |
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$token = \OC::$server->getSecureRandom()->getMediumStrengthGenerator()->generate(32, |
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\OCP\Security\ISecureRandom::CHAR_LOWER . \OCP\Security\ISecureRandom::CHAR_UPPER . |
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\OCP\Security\ISecureRandom::CHAR_DIGITS); |
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$wopi = new \OCA\Richdocuments\Db\Wopi([ |
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$fileId, |
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$owner, |
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$editor, |
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$version, |
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$updatable, |
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$serverHost, |
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$token, |
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time() + self::TOKEN_LIFETIME_SECONDS |
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]); |
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if (!$wopi->insert()) { |
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throw new \Exception('Failed to add wopi token into database'); |
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} |
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return $token; |
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} |
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/* |
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* Given a token, validates it and |
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* constructs and validates the path. |
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* Returns the path, if valid, else false. |
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*/ |
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public function getPathForToken($fileId, $version, $token){ |
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$wopi = new Wopi(); |
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$row = $wopi->loadBy('token', $token)->getData(); |
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\OC::$server->getLogger()->debug('Loaded WOPI Token record: {row}.', [ 'row' => $row ]); |
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if (count($row) == 0) |
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{ |
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// Invalid token. |
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http_response_code(401); |
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return false; |
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} |
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//TODO: validate. |
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if ($row['expiry'] > time()){ |
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// Expired token! |
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//http_response_code(404); |
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//$wopi->deleteBy('id', $row['id']); |
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//return false; |
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} |
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if ($row['fileid'] != $fileId || $row['version'] != $version){ |
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// File unknown / user unauthorized (for the requested file). |
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http_response_code(404); |
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return false; |
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} |
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return array( |
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'owner' => $row['owner_uid'], |
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'editor' => $row['editor_uid'], |
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'path' => $row['path'], |
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'canwrite' => $row['canwrite'], |
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'server_host' => $row['server_host'] |
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); |
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} |
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} |
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nextcloud /
richdocuments
