| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  | /* | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  |  * SPDX-License-Identifier: AGPL-3.0-only | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  |  * SPDX-FileCopyrightText: Copyright 2016 - 2018 Kopano b.v. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 5 |  |  |  * SPDX-FileCopyrightText: Copyright 2020 grommunio GmbH | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  |  * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 7 |  |  |  * Class for handling sync state. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  |  */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | namespace grommunio\DAV; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | class GrommunioSyncState { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | 	private $db; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 15 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | 	 * Constructor. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 	 * @param GLogger $logger | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 	 * @param string  $dbstring | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  | 	public function __construct($logger, $dbstring) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 		$this->logger = $logger; | 
                            
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                | 23 |  |  | 		$this->logger->trace("Using db %s", $dbstring); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 		$this->db = new \PDO($dbstring); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 		$query = "CREATE TABLE IF NOT EXISTS gdav_sync_state ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 		          id VARCHAR(255), folderid VARCHAR(255), value TEXT, | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 		          PRIMARY KEY (id, folderid)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 		          CREATE TABLE IF NOT EXISTS gdav_sync_appttsref ( | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 		          sourcekey VARCHAR(255), folderid VARCHAR(255), appttsref VARCHAR(255), | 
            
                                                                                                            
                            
            
                                    
            
            
                | 31 |  |  | 		          PRIMARY KEY (sourcekey, folderid)); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 		          CREATE INDEX IF NOT EXISTS idx_appttsref ON gdav_sync_appttsref(appttsref);"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 		$this->db->exec($query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 38 |  |  | 	 * Fetch state information for a folderId (e.g. calenderId) and an id (uuid). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 39 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 40 |  |  | 	 * @param string $folderid | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 	 * @param string $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 	 * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  | 	public function getState($folderid, $id) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | 		$query = "SELECT value FROM gdav_sync_state WHERE folderid = :folderid AND id = :id"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 		$statement = $this->db->prepare($query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 		$statement->bindParam(":folderid", $folderid); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 49 |  |  | 		$statement->bindParam(":id", $id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 50 |  |  | 		$statement->execute(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 51 |  |  | 		$result = $statement->fetch(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 52 |  |  | 		if (!$result) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 53 |  |  | 			return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 54 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 55 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 56 |  |  | 		return $result['value']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 57 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 59 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 60 |  |  | 	 * Set state information for a folderId (e.g. calenderId) and an id (uuid). | 
            
                                                                                                            
                            
            
                                    
            
            
                | 61 |  |  | 	 * The state information is the sync token for ICS. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 62 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 63 |  |  | 	 * @param string $folderid | 
            
                                                                                                            
                            
            
                                    
            
            
                | 64 |  |  | 	 * @param string $id | 
            
                                                                                                            
                            
            
                                    
            
            
                | 65 |  |  | 	 * @param string $value | 
            
                                                                                                            
                            
            
                                    
            
            
                | 66 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 67 |  |  | 	public function setState($folderid, $id, $value) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 68 |  |  | 		$query = "REPLACE INTO gdav_sync_state (id, folderid, value) VALUES(:id, :folderid, :value)"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 69 |  |  | 		$statement = $this->db->prepare($query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 70 |  |  | 		$statement->bindParam(":folderid", $folderid); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 71 |  |  | 		$statement->bindParam(":id", $id); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 72 |  |  | 		$statement->bindParam(":value", $value); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 73 |  |  | 		$statement->execute(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 74 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 75 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 76 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 77 |  |  | 	 * Set the APPTTSREF (custom URL) for a folderId and source key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 78 |  |  | 	 * This is needed for detecting the URL of deleted items reported by ICS. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 79 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 80 |  |  | 	 * @param string $folderid | 
            
                                                                                                            
                            
            
                                    
            
            
                | 81 |  |  | 	 * @param string $sourcekey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 82 |  |  | 	 * @param string $appttsref | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 83 |  |  | 	 */ | 
            
                                                                        
                            
            
                                    
            
            
                | 84 |  |  | 	public function rememberAppttsref($folderid, $sourcekey, $appttsref) { | 
            
                                                                        
                            
            
                                    
            
            
                | 85 |  |  | 		$query = "REPLACE INTO gdav_sync_appttsref (folderid, sourcekey, appttsref) VALUES(:folderid, :sourcekey, :appttsref)"; | 
            
                                                                        
                            
            
                                    
            
            
                | 86 |  |  | 		$statement = $this->db->prepare($query); | 
            
                                                                        
                            
            
                                    
            
            
                | 87 |  |  | 		$statement->bindParam(":folderid", $folderid); | 
            
                                                                        
                            
            
                                    
            
            
                | 88 |  |  | 		$statement->bindParam(":sourcekey", $sourcekey); | 
            
                                                                        
                            
            
                                    
            
            
                | 89 |  |  | 		$statement->bindParam(":appttsref", $appttsref); | 
            
                                                                        
                            
            
                                    
            
            
                | 90 |  |  | 		$statement->execute(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 91 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 92 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 93 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 94 |  |  | 	 * Get the APPTTSREF (custom URL) for a folderId and source key. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 95 |  |  | 	 * This is needed for detecting the URL of deleted items reported by ICS. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 96 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 97 |  |  | 	 * @param string $folderid | 
            
                                                                                                            
                            
            
                                    
            
            
                | 98 |  |  | 	 * @param string $sourcekey | 
            
                                                                                                            
                            
            
                                    
            
            
                | 99 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 100 |  |  | 	 * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 101 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 102 |  |  | 	public function getAppttsref($folderid, $sourcekey) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 103 |  |  | 		$query = "SELECT appttsref FROM gdav_sync_appttsref WHERE folderid = :folderid AND sourcekey = :sourcekey"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 104 |  |  | 		$statement = $this->db->prepare($query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 105 |  |  | 		$statement->bindParam(":folderid", $folderid); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 106 |  |  | 		$statement->bindParam(":sourcekey", $sourcekey); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 107 |  |  | 		$statement->execute(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 108 |  |  | 		$result = $statement->fetch(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 109 |  |  | 		if (!$result) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 110 |  |  | 			return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 111 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 112 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 113 |  |  | 		return $result['appttsref']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 114 |  |  | 	} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 115 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 116 |  |  | 	/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 117 |  |  | 	 * Get the sourcekey from the saved APPTTSREF (custom URL) and a folderId. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 118 |  |  | 	 * This is the last resort when searching for an item in the store fails. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 119 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 120 |  |  | 	 * @param string $folderid | 
            
                                                                                                            
                            
            
                                    
            
            
                | 121 |  |  | 	 * @param string $appttsref | 
            
                                                                                                            
                            
            
                                    
            
            
                | 122 |  |  | 	 * | 
            
                                                                                                            
                            
            
                                    
            
            
                | 123 |  |  | 	 * @return string | 
            
                                                                                                            
                            
            
                                    
            
            
                | 124 |  |  | 	 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 125 |  |  | 	public function getSourcekey($folderid, $appttsref) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 126 |  |  | 		$query = "SELECT sourcekey FROM gdav_sync_appttsref WHERE folderid = :folderid AND appttsref = :appttsref"; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 127 |  |  | 		$statement = $this->db->prepare($query); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 128 |  |  | 		$statement->bindParam(":folderid", $folderid); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 129 |  |  | 		$statement->bindParam(":appttsref", $appttsref); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 130 |  |  | 		$statement->execute(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 131 |  |  | 		$result = $statement->fetch(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 132 |  |  | 		if (!$result) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 133 |  |  | 			return null; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 134 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 135 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 136 |  |  | 		return $result['sourcekey']; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 137 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 138 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 139 |  |  |  |