| commit | author | age | ||
| 1676e1 | 1 | <?php |
| S | 2 | |
| 3 | /* | |
| 4 | +-----------------------------------------------------------------------+ | |
| 5 | | program/include/rcube_db.inc | | |
| 6 | | | | |
| 7 | | This file is part of the RoundCube Webmail client | | |
| 8 | | Copyright (C) 2005, RoundCube Dev. - Switzerland | | |
| 9 | | Licensed under the GNU GPL | | |
| 10 | | | | |
| 11 | | PURPOSE: | | |
| 12 | | PEAR:DB wrapper class that implements PEAR DB functions | | |
| 13 | | See http://pear.php.net/package/DB | | |
| 14 | | | | |
| 15 | +-----------------------------------------------------------------------+ | |
| adf95d | 16 | | Author: David Saez Padros <david@ols.es> | |
| 1676e1 | 17 | +-----------------------------------------------------------------------+ |
| S | 18 | |
| 19 | $Id$ | |
| 20 | ||
| 21 | */ | |
| 22 | ||
| 23 | require_once('DB.php'); | |
| 24 | ||
| 25 | class rcube_db | |
| 26 | { | |
| adf95d | 27 | var $db_dsnw; // DSN for write operations |
| T | 28 | var $db_dsnr; // DSN for read operations |
| 29 | var $db_connected=false; // Already connected ? | |
| 30 | var $db_mode=''; // Connection mode | |
| 31 | var $db_handle=0; // Connection handle | |
| 1676e1 | 32 | |
| S | 33 | var $a_query_results = array('dummy'); |
| 34 | var $last_res_id = 0; | |
| 35 | ||
| 36 | // PHP 5 constructor | |
| 37 | function __construct($db_dsnw,$db_dsnr='') | |
| 38 | { | |
| adf95d | 39 | if ($db_dsnr=='') $db_dsnr=$db_dsnw; |
| T | 40 | |
| 1676e1 | 41 | $this->db_dsnw = $db_dsnw; |
| S | 42 | $this->db_dsnr = $db_dsnr; |
| 42b113 | 43 | |
| T | 44 | $dsn_array = DB::parseDSN($db_dsnw); |
| 45 | $this->db_provider = $dsn_array['phptype']; | |
| 1676e1 | 46 | } |
| S | 47 | |
| 48 | // PHP 4 compatibility | |
| 49 | function rcube_db($db_dsnw,$db_dsnr='') | |
| 50 | { | |
| 51 | $this->__construct($db_dsnw,$db_dsnr); | |
| 52 | } | |
| 53 | ||
| adf95d | 54 | // Connect to specific database |
| T | 55 | function dsn_connect($dsn) |
| 56 | { | |
| 597170 | 57 | // Use persistent connections if available |
| adf95d | 58 | $dbh = DB::connect($dsn, array('persistent' => $true)); |
| 42b113 | 59 | |
| adf95d | 60 | if (DB::isError($dbh)) |
| T | 61 | raise_error(array('code' => 500, |
| 1676e1 | 62 | 'type' => 'db', |
| S | 63 | 'line' => __LINE__, |
| 64 | 'file' => __FILE__, | |
| 65 | 'message' => $dbh->getMessage()), TRUE, FALSE); | |
| 42b113 | 66 | |
| 597170 | 67 | else if ($this->db_provider=='sqlite') |
| T | 68 | { |
| 42b113 | 69 | $dsn_array = DB::parseDSN($dsn); |
| T | 70 | if (!filesize($dsn_array['database']) && !empty($this->sqlite_initials)) |
| 71 | $this->_sqlite_create_database($dbh, $this->sqlite_initials); | |
| 597170 | 72 | } |
| T | 73 | |
| adf95d | 74 | return $dbh; |
| T | 75 | } |
| 1676e1 | 76 | |
| adf95d | 77 | // Connect to appropiate databse |
| T | 78 | function db_connect ($mode) |
| 79 | { | |
| 42b113 | 80 | $this->db_mode = $mode; |
| T | 81 | |
| adf95d | 82 | // Already connected |
| T | 83 | if ($this->db_connected) |
| 84 | { | |
| 85 | // no replication, current connection is ok | |
| 86 | if ($this->db_dsnw==$this->db_dsnr) return; | |
| 87 | ||
| 88 | // connected to master, current connection is ok | |
| 89 | if ($this->db_mode=='w') return; | |
| 1676e1 | 90 | |
| adf95d | 91 | // Same mode, current connection is ok |
| T | 92 | if ($this->db_mode==$mode) return; |
| 93 | } | |
| 94 | ||
| 95 | if ($mode=='r') | |
| 96 | $dsn=$this->db_dsnr; | |
| 97 | else | |
| 98 | $dsn=$this->db_dsnw; | |
| 1676e1 | 99 | |
| adf95d | 100 | $this->db_handle = $this->dsn_connect($dsn); |
| T | 101 | $this->db_connected = true; |
| 102 | } | |
| 1676e1 | 103 | |
| adf95d | 104 | // Query database (read operations) |
| T | 105 | |
| 1676e1 | 106 | function query($query) |
| S | 107 | { |
| adf95d | 108 | // Read or write ? |
| T | 109 | if (strtolower(trim(substr($query,0,6)))=='select') |
| 110 | $mode='r'; | |
| 111 | else | |
| 112 | $mode='w'; | |
| 113 | ||
| 597170 | 114 | $this->db_connect($mode); |
| T | 115 | |
| 116 | if ($this->db_provider == 'sqlite') | |
| 117 | $query = $this->_sqlite_prepare_query($query); | |
| 118 | ||
| 1676e1 | 119 | $result = $this->db_handle->query($query); |
| S | 120 | |
| 121 | if (DB::isError($result)) | |
| 42b113 | 122 | raise_error(array('code' => 500, |
| T | 123 | 'type' => 'db', |
| 597170 | 124 | 'line' => __LINE__, |
| T | 125 | 'file' => __FILE__, |
| 126 | 'message' => $result->getMessage()), TRUE, FALSE); | |
| 1676e1 | 127 | |
| S | 128 | return $this->_add_result($result, $query); |
| 129 | } | |
| 130 | ||
| adf95d | 131 | function db_execute ($query) |
| T | 132 | { |
| 42b113 | 133 | $this->db_connect('w'); |
| 597170 | 134 | |
| T | 135 | if ($this->db_provider == 'sqlite') |
| 136 | $query = $this->_sqlite_prepare_query($query); | |
| 1676e1 | 137 | |
| adf95d | 138 | $result = $this->db_handle->query($query); |
| 1676e1 | 139 | |
| adf95d | 140 | } |
| T | 141 | |
| 142 | function num_rows($res_id=NULL) | |
| 1676e1 | 143 | { |
| S | 144 | if (!$this->db_handle) |
| 145 | return FALSE; | |
| 146 | ||
| 147 | $result = $this->_get_result($res_id); | |
| 148 | ||
| 149 | if ($result) | |
| 150 | return $result->numRows(); | |
| 151 | else | |
| 152 | return FALSE; | |
| 153 | } | |
| 154 | ||
| 155 | function affected_rows($res_id=NULL) | |
| 156 | { | |
| 157 | if (!$this->db_handle) | |
| 158 | return FALSE; | |
| 159 | ||
| d3d42b | 160 | return $this->db_handle->affectedRows(); |
| 1676e1 | 161 | } |
| S | 162 | |
| 163 | function insert_id($sequence = '') | |
| 164 | { | |
| 42b113 | 165 | if (!$this->db_handle || $this->db_mode=='r') |
| 1676e1 | 166 | return FALSE; |
| S | 167 | |
| 168 | switch($this->db_provider) | |
| 169 | { | |
| 170 | case 'pgsql': | |
| 171 | // PostgreSQL uses sequences | |
| 172 | $result =& $this->db_handle->getOne("SELECT CURRVAL('$sequence')"); | |
| 42b113 | 173 | if (DB::isError($result)) { |
| 1676e1 | 174 | raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, |
| S | 175 | 'message' => $result->getMessage()), TRUE, TRUE); |
| 42b113 | 176 | } |
| 1676e1 | 177 | return $result; |
| S | 178 | |
| 179 | case 'mysql': // This is unfortuneate | |
| 42b113 | 180 | return mysql_insert_id(); |
| 597170 | 181 | |
| T | 182 | case 'sqlite': |
| 183 | return sqlite_last_insert_rowid($this->db_handle->connection); | |
| 184 | ||
| 1676e1 | 185 | default: |
| S | 186 | die("portability issue with this database, please have the developer fix"); |
| 187 | } | |
| 188 | } | |
| 189 | ||
| 190 | ||
| 191 | function fetch_assoc($res_id=NULL) | |
| 192 | { | |
| 193 | $result = $this->_get_result($res_id); | |
| 194 | ||
| 195 | if (DB::isError($result)) | |
| 42b113 | 196 | { |
| 1676e1 | 197 | raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, |
| 42b113 | 198 | 'message' => $this->db_link->getMessage()), TRUE, FALSE); |
| T | 199 | return FALSE; |
| 200 | } | |
| 1676e1 | 201 | |
| S | 202 | return $result->fetchRow(DB_FETCHMODE_ASSOC); |
| 203 | } | |
| 204 | ||
| 205 | function _add_result($res, $query) | |
| 206 | { | |
| 207 | // sql error occured | |
| 208 | if (DB::isError($res)) | |
| 209 | { | |
| adf95d | 210 | raise_error(array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, 'message' => $res->getMessage() . " Query: " . substr(preg_replace('/[\r\n]+\s*/', ' ', $query), 0, 1024)), TRUE, FALSE); |
| 1676e1 | 211 | return FALSE; |
| S | 212 | } |
| 213 | else | |
| 214 | { | |
| 215 | $res_id = sizeof($this->a_query_results); | |
| 216 | $this->a_query_results[$res_id] = $res; | |
| 217 | $this->last_res_id = $res_id; | |
| 218 | return $res_id; | |
| 219 | } | |
| 220 | } | |
| 221 | ||
| 222 | ||
| 223 | function _get_result($res_id) | |
| 224 | { | |
| 225 | if ($res_id==NULL) | |
| 226 | $res_id = $this->last_res_id; | |
| 227 | ||
| 228 | if ($res_id && isset($this->a_query_results[$res_id])) | |
| 229 | return $this->a_query_results[$res_id]; | |
| 230 | else | |
| 231 | return FALSE; | |
| 232 | } | |
| 233 | ||
| 597170 | 234 | |
| T | 235 | // create a sqlite database from a file |
| 236 | function _sqlite_create_database($dbh, $fileName) | |
| 237 | { | |
| 238 | if (empty($fileName) || !is_string($fileName)) | |
| 239 | return ; | |
| 240 | ||
| 241 | $data = ''; | |
| 42b113 | 242 | if ($fd = fopen($fileName, 'r')) |
| T | 243 | { |
| 244 | $data = fread($fd, filesize($fileName)); | |
| 245 | fclose($fd); | |
| 246 | } | |
| 597170 | 247 | |
| 42b113 | 248 | if (strlen($data)) |
| T | 249 | sqlite_exec($dbh->connection, $data); |
| 597170 | 250 | } |
| T | 251 | |
| 252 | // transform a query so that it is sqlite2 compliant | |
| 253 | function _sqlite_prepare_query($query) | |
| 254 | { | |
| 255 | if (!is_string($query)) | |
| 256 | return ($query); | |
| 257 | ||
| 258 | $search = array('/NOW\(\)/', | |
| 259 | '/`/'); | |
| 260 | $replace = array("datetime('now')", | |
| 261 | '"'); | |
| 262 | $query = preg_replace($search, $replace, $query); | |
| 263 | ||
| 264 | return ($query); | |
| 265 | } | |
| 266 | ||
| 1676e1 | 267 | } |
| S | 268 | |
| 269 | ?> | |
