| 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 | |
| d7cb77 | 104 | // Query database |
| adf95d | 105 | |
| d7cb77 | 106 | function query() |
| S | 107 | { |
| 108 | $params = func_get_args(); | |
| 109 | $query = array_shift($params); | |
| 110 | ||
| 111 | return $this->_query($query, 0, 0, $params); | |
| 112 | } | |
| 113 | ||
| 114 | function limitquery() | |
| 115 | { | |
| 116 | $params = func_get_args(); | |
| 117 | $query = array_shift($params); | |
| 118 | $offset = array_shift($params); | |
| 119 | $numrows = array_shift($params); | |
| 120 | ||
| 121 | return $this->_query($query, $offset, $numrows, $params); | |
| 122 | } | |
| 123 | ||
| 124 | function _query($query, $offset, $numrows, $params) | |
| 1676e1 | 125 | { |
| adf95d | 126 | // Read or write ? |
| T | 127 | if (strtolower(trim(substr($query,0,6)))=='select') |
| 128 | $mode='r'; | |
| 129 | else | |
| 130 | $mode='w'; | |
| 131 | ||
| 597170 | 132 | $this->db_connect($mode); |
| T | 133 | |
| 134 | if ($this->db_provider == 'sqlite') | |
| 135 | $query = $this->_sqlite_prepare_query($query); | |
| 53560c | 136 | |
| S | 137 | if ($numrows || $offset) |
| 138 | { | |
| d7cb77 | 139 | $result = $this->db_handle->limitQuery($query,$offset,$numrows,$params); |
| 53560c | 140 | } |
| S | 141 | else |
| ccfda8 | 142 | $result = $this->db_handle->query($query, $params); |
| d7cb77 | 143 | |
| 1676e1 | 144 | if (DB::isError($result)) |
| d7cb77 | 145 | { |
| 42b113 | 146 | raise_error(array('code' => 500, |
| T | 147 | 'type' => 'db', |
| 597170 | 148 | 'line' => __LINE__, |
| T | 149 | 'file' => __FILE__, |
| ccfda8 | 150 | 'message' => $result->getMessage().'; QUERY: '.$query), TRUE, FALSE); |
| d7cb77 | 151 | return false; |
| S | 152 | } |
| 153 | ||
| 1676e1 | 154 | return $this->_add_result($result, $query); |
| S | 155 | } |
| adf95d | 156 | |
| T | 157 | function num_rows($res_id=NULL) |
| 1676e1 | 158 | { |
| S | 159 | if (!$this->db_handle) |
| 160 | return FALSE; | |
| 161 | ||
| 162 | $result = $this->_get_result($res_id); | |
| 163 | ||
| 164 | if ($result) | |
| 165 | return $result->numRows(); | |
| 166 | else | |
| 167 | return FALSE; | |
| 168 | } | |
| 169 | ||
| 170 | function affected_rows($res_id=NULL) | |
| 171 | { | |
| 172 | if (!$this->db_handle) | |
| 173 | return FALSE; | |
| 174 | ||
| d3d42b | 175 | return $this->db_handle->affectedRows(); |
| 1676e1 | 176 | } |
| S | 177 | |
| 178 | function insert_id($sequence = '') | |
| 179 | { | |
| 42b113 | 180 | if (!$this->db_handle || $this->db_mode=='r') |
| 1676e1 | 181 | return FALSE; |
| S | 182 | |
| 183 | switch($this->db_provider) | |
| 184 | { | |
| 185 | case 'pgsql': | |
| 186 | // PostgreSQL uses sequences | |
| 187 | $result =& $this->db_handle->getOne("SELECT CURRVAL('$sequence')"); | |
| 42b113 | 188 | if (DB::isError($result)) { |
| 1676e1 | 189 | raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, |
| S | 190 | 'message' => $result->getMessage()), TRUE, TRUE); |
| 42b113 | 191 | } |
| 1676e1 | 192 | return $result; |
| S | 193 | |
| 194 | case 'mysql': // This is unfortuneate | |
| fa3add | 195 | return mysql_insert_id($this->db_handle->connection); |
| 597170 | 196 | |
| fa3add | 197 | case 'mysqli': |
| S | 198 | return mysqli_insert_id($this->db_handle->connection); |
| 199 | ||
| 597170 | 200 | case 'sqlite': |
| T | 201 | return sqlite_last_insert_rowid($this->db_handle->connection); |
| 202 | ||
| 1676e1 | 203 | default: |
| S | 204 | die("portability issue with this database, please have the developer fix"); |
| 205 | } | |
| 206 | } | |
| 207 | ||
| 208 | ||
| 209 | function fetch_assoc($res_id=NULL) | |
| 210 | { | |
| 211 | $result = $this->_get_result($res_id); | |
| 212 | ||
| 213 | if (DB::isError($result)) | |
| 42b113 | 214 | { |
| 1676e1 | 215 | raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, |
| 42b113 | 216 | 'message' => $this->db_link->getMessage()), TRUE, FALSE); |
| T | 217 | return FALSE; |
| 218 | } | |
| 1676e1 | 219 | |
| S | 220 | return $result->fetchRow(DB_FETCHMODE_ASSOC); |
| 221 | } | |
| 222 | ||
| 10a699 | 223 | |
| T | 224 | function quote($input, $type=null) |
| 225 | { | |
| 226 | if (!$this->db_handle) | |
| 227 | $this->db_connect('r'); | |
| 228 | ||
| 229 | return $this->db_handle->quote($input); | |
| 230 | } | |
| 231 | ||
| 232 | ||
| 233 | function quoteIdentifier($str) | |
| d7cb77 | 234 | { |
| S | 235 | if (!$this->db_handle) |
| 236 | $this->db_connect('r'); | |
| 237 | ||
| 238 | return $this->db_handle->quoteIdentifier($str); | |
| 239 | } | |
| 240 | ||
| 10a699 | 241 | function quote_identifier($str) |
| T | 242 | { |
| 243 | return $this->quoteIdentifier($str); | |
| 244 | } | |
| 245 | ||
| 246 | ||
| d7cb77 | 247 | function unixtimestamp($field) |
| S | 248 | { |
| 249 | switch($this->db_provider) | |
| 250 | { | |
| 251 | case 'pgsql': | |
| 252 | return "EXTRACT (EPOCH FROM $field)"; | |
| 253 | break; | |
| 254 | default: | |
| 255 | return "UNIX_TIMESTAMP($field)"; | |
| 256 | } | |
| 257 | } | |
| 258 | ||
| 1676e1 | 259 | function _add_result($res, $query) |
| S | 260 | { |
| 261 | // sql error occured | |
| 262 | if (DB::isError($res)) | |
| 263 | { | |
| adf95d | 264 | 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 | 265 | return FALSE; |
| S | 266 | } |
| 267 | else | |
| 268 | { | |
| 269 | $res_id = sizeof($this->a_query_results); | |
| 270 | $this->a_query_results[$res_id] = $res; | |
| 271 | $this->last_res_id = $res_id; | |
| 272 | return $res_id; | |
| 273 | } | |
| 274 | } | |
| 275 | ||
| 276 | ||
| 277 | function _get_result($res_id) | |
| 278 | { | |
| 279 | if ($res_id==NULL) | |
| 280 | $res_id = $this->last_res_id; | |
| 281 | ||
| 282 | if ($res_id && isset($this->a_query_results[$res_id])) | |
| 283 | return $this->a_query_results[$res_id]; | |
| 284 | else | |
| 285 | return FALSE; | |
| 286 | } | |
| 287 | ||
| 597170 | 288 | |
| T | 289 | // create a sqlite database from a file |
| 290 | function _sqlite_create_database($dbh, $fileName) | |
| 291 | { | |
| 292 | if (empty($fileName) || !is_string($fileName)) | |
| 293 | return ; | |
| 294 | ||
| 295 | $data = ''; | |
| 42b113 | 296 | if ($fd = fopen($fileName, 'r')) |
| T | 297 | { |
| 298 | $data = fread($fd, filesize($fileName)); | |
| 299 | fclose($fd); | |
| 300 | } | |
| 597170 | 301 | |
| 42b113 | 302 | if (strlen($data)) |
| T | 303 | sqlite_exec($dbh->connection, $data); |
| 597170 | 304 | } |
| T | 305 | |
| 306 | // transform a query so that it is sqlite2 compliant | |
| 307 | function _sqlite_prepare_query($query) | |
| 308 | { | |
| 309 | if (!is_string($query)) | |
| 310 | return ($query); | |
| ccfda8 | 311 | |
| T | 312 | $search = array('/NOW\(\)/i', '/`/'); |
| 313 | $replace = array("datetime('now')", '"'); | |
| 597170 | 314 | $query = preg_replace($search, $replace, $query); |
| T | 315 | |
| 316 | return ($query); | |
| 317 | } | |
| 318 | ||
| 1676e1 | 319 | } |
| S | 320 | |
| 321 | ?> | |
