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<?php |
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/* |
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* SPDX-License-Identifier: AGPL-3.0-only |
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* SPDX-FileCopyrightText: Copyright 2016 - 2018 Kopano b.v. |
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* SPDX-FileCopyrightText: Copyright 2020-2024 grommunio GmbH |
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* |
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* Class for handling sync state. |
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*/ |
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namespace grommunio\DAV; |
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class GrommunioSyncState { |
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private $db; |
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private $logger; |
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/** |
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* Constructor. |
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* |
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* @param GLogger $logger |
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* @param string $dbstring |
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*/ |
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public function __construct($logger, $dbstring) { |
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$this->logger = $logger; |
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$this->logger->trace("Using db %s", $dbstring); |
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$this->db = new \PDO($dbstring); |
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$query = "CREATE TABLE IF NOT EXISTS gdav_sync_state ( |
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id VARCHAR(255), folderid VARCHAR(255), value TEXT, |
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PRIMARY KEY (id, folderid)); |
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CREATE TABLE IF NOT EXISTS gdav_sync_appttsref ( |
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sourcekey VARCHAR(255), folderid VARCHAR(255), appttsref VARCHAR(255), |
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PRIMARY KEY (sourcekey, folderid)); |
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CREATE INDEX IF NOT EXISTS idx_appttsref ON gdav_sync_appttsref(appttsref); |
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CREATE TABLE IF NOT EXISTS gdav_sync_state_current ( |
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folderid VARCHAR(255) PRIMARY KEY, token VARCHAR(255));"; |
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$this->db->exec($query); |
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} |
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/** |
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* Fetch state information for a folderId (e.g. calenderId) and an id (uuid). |
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* |
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* @param string $folderid |
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* @param string $id |
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* |
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* @return null|string |
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*/ |
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public function getState($folderid, $id) { |
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$query = "SELECT value FROM gdav_sync_state WHERE folderid = :folderid AND id = :id"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->bindParam(":id", $id); |
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$statement->execute(); |
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$result = $statement->fetch(); |
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if (!$result) { |
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return null; |
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} |
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return $result['value']; |
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} |
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/** |
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* Set state information for a folderId (e.g. calenderId) and an id (uuid). |
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* The state information is the sync token for ICS. |
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* |
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* @param string $folderid |
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* @param string $id |
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* @param string $value |
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*/ |
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public function setState($folderid, $id, $value) { |
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$query = "REPLACE INTO gdav_sync_state (id, folderid, value) VALUES(:id, :folderid, :value)"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->bindParam(":id", $id); |
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$statement->bindParam(":value", $value); |
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$statement->execute(); |
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$this->setCurrentToken($folderid, $id); |
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} |
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/** |
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* Returns the latest sync token assigned to the folder. |
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* |
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* @param string $folderid |
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* |
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* @return null|string |
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*/ |
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public function getCurrentToken($folderid) { |
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$query = "SELECT token FROM gdav_sync_state_current WHERE folderid = :folderid"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->execute(); |
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$result = $statement->fetch(); |
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if (!$result) { |
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return null; |
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} |
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return $result['token']; |
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} |
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/** |
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* Persists the current sync token for the folder. |
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* |
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* @param string $folderid |
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* @param null|string $token |
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*/ |
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private function setCurrentToken($folderid, $token) { |
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if ($token === null) { |
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return; |
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} |
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$query = "REPLACE INTO gdav_sync_state_current (folderid, token) VALUES (:folderid, :token)"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->bindParam(":token", $token); |
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$statement->execute(); |
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} |
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/** |
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* Set the APPTTSREF (custom URL) for a folderId and source key. |
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* This is needed for detecting the URL of deleted items reported by ICS. |
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* |
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* @param string $folderid |
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* @param string $sourcekey |
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* @param string $appttsref |
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*/ |
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public function rememberAppttsref($folderid, $sourcekey, $appttsref) { |
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$query = "REPLACE INTO gdav_sync_appttsref (folderid, sourcekey, appttsref) VALUES(:folderid, :sourcekey, :appttsref)"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->bindParam(":sourcekey", $sourcekey); |
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$statement->bindParam(":appttsref", $appttsref); |
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$statement->execute(); |
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} |
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/** |
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* Get the APPTTSREF (custom URL) for a folderId and source key. |
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* This is needed for detecting the URL of deleted items reported by ICS. |
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* |
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* @param string $folderid |
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* @param string $sourcekey |
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* |
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* @return null|string |
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*/ |
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public function getAppttsref($folderid, $sourcekey) { |
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$query = "SELECT appttsref FROM gdav_sync_appttsref WHERE folderid = :folderid AND sourcekey = :sourcekey"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->bindParam(":sourcekey", $sourcekey); |
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$statement->execute(); |
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$result = $statement->fetch(); |
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if (!$result) { |
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return null; |
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} |
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return $result['appttsref']; |
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} |
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/** |
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* Get the sourcekey from the saved APPTTSREF (custom URL) and a folderId. |
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* This is the last resort when searching for an item in the store fails. |
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* |
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* @param string $folderid |
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* @param string $appttsref |
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* |
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* @return null|string |
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*/ |
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public function getSourcekey($folderid, $appttsref) { |
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$query = "SELECT sourcekey FROM gdav_sync_appttsref WHERE folderid = :folderid AND appttsref = :appttsref"; |
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$statement = $this->db->prepare($query); |
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$statement->bindParam(":folderid", $folderid); |
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$statement->bindParam(":appttsref", $appttsref); |
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$statement->execute(); |
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$result = $statement->fetch(); |
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if (!$result) { |
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return null; |
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} |
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return $result['sourcekey']; |
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} |
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} |
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