| commit | author | age | ||
| f45ec7 | 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 | +-----------------------------------------------------------------------+ | |
| 16 | | Author: David Saez Padros <david@ols.es> | | |
| 17 | +-----------------------------------------------------------------------+ | |
| 18 | ||
| 19 | $Id$ | |
| 20 | ||
| 21 | */ | |
| 22 | ||
| 23 | require_once('MDB2.php'); | |
| 24 | ||
| 25 | class rcube_db | |
| 26 | { | |
| 27 | var $db_dsnw; // DSN for write operations | |
| 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 | |
| 32 | ||
| 33 | var $a_query_results = array('dummy'); | |
| 34 | var $last_res_id = 0; | |
| 35 | ||
| 36 | // PHP 5 constructor | |
| 37 | function __construct($db_dsnw,$db_dsnr='') | |
| 38 | { | |
| 39 | if ($db_dsnr=='') $db_dsnr=$db_dsnw; | |
| 40 | ||
| 41 | $this->db_dsnw = $db_dsnw; | |
| 42 | $this->db_dsnr = $db_dsnr; | |
| 43 | ||
| 44 | $dsn_array = MDB2::parseDSN($db_dsnw); | |
| 45 | $this->db_provider = $dsn_array['phptype']; | |
| 46 | } | |
| 47 | ||
| 48 | // PHP 4 compatibility | |
| 49 | function rcube_db($db_dsnw,$db_dsnr='') | |
| 50 | { | |
| 51 | $this->__construct($db_dsnw,$db_dsnr); | |
| 52 | } | |
| 53 | ||
| 54 | // Connect to specific database | |
| 55 | function dsn_connect($dsn) | |
| 56 | { | |
| 57 | // Use persistent connections if available | |
| 451834 | 58 | $dbh = MDB2::factory($dsn, array('persistent' => $true)); |
| f45ec7 | 59 | |
| S | 60 | if (PEAR::isError($dbh)) |
| 61 | raise_error(array('code' => 500, | |
| 62 | 'type' => 'db', | |
| 63 | 'line' => __LINE__, | |
| 64 | 'file' => __FILE__, | |
| 65 | 'message' => $dbh->getMessage()), TRUE, FALSE); | |
| 66 | ||
| 67 | else if ($this->db_provider=='sqlite') | |
| 68 | { | |
| 69 | $dsn_array = MDB2::parseDSN($dsn); | |
| 70 | if (!filesize($dsn_array['database']) && !empty($this->sqlite_initials)) | |
| 71 | $this->_sqlite_create_database($dbh, $this->sqlite_initials); | |
| 72 | } | |
| 73 | ||
| 74 | return $dbh; | |
| 75 | } | |
| 76 | ||
| 77 | // Connect to appropiate databse | |
| 78 | function db_connect ($mode) | |
| 79 | { | |
| 80 | $this->db_mode = $mode; | |
| 81 | ||
| 82 | // Already connected | |
| 83 | if ($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 ($this->db_mode=='w') return; | |
| 90 | ||
| 91 | // Same mode, current connection is ok | |
| 92 | if ($this->db_mode==$mode) return; | |
| 93 | } | |
| 94 | ||
| 95 | if ($mode=='r') | |
| 96 | $dsn=$this->db_dsnr; | |
| 97 | else | |
| 98 | $dsn=$this->db_dsnw; | |
| 99 | ||
| 100 | $this->db_handle = $this->dsn_connect($dsn); | |
| 101 | $this->db_connected = true; | |
| 102 | } | |
| 103 | ||
| d7cb77 | 104 | // Query database |
| S | 105 | function query() |
| 106 | { | |
| 107 | $params = func_get_args(); | |
| 108 | $query = array_shift($params); | |
| ccfda8 | 109 | |
| d7cb77 | 110 | return $this->_query($query, 0, 0, $params); |
| S | 111 | } |
| ccfda8 | 112 | |
| T | 113 | |
| d7cb77 | 114 | function limitquery() |
| S | 115 | { |
| ccfda8 | 116 | |
| d7cb77 | 117 | $params = func_get_args(); |
| S | 118 | $query = array_shift($params); |
| 119 | $offset = array_shift($params); | |
| 120 | $numrows = array_shift($params); | |
| ccfda8 | 121 | |
| d7cb77 | 122 | return $this->_query($query, $offset, $numrows, $params); |
| S | 123 | } |
| 124 | ||
| 125 | function _query($query, $offset, $numrows, $params) | |
| f45ec7 | 126 | { |
| S | 127 | // Read or write ? |
| 128 | if (strtolower(trim(substr($query,0,6)))=='select') | |
| 129 | $mode='r'; | |
| 130 | else | |
| 131 | $mode='w'; | |
| 132 | ||
| 133 | $this->db_connect($mode); | |
| 134 | ||
| 135 | if ($this->db_provider == 'sqlite') | |
| 136 | $query = $this->_sqlite_prepare_query($query); | |
| ccfda8 | 137 | |
| 53560c | 138 | $this->db_handle->row_offset = $offset; |
| S | 139 | $this->db_handle->row_limit = $numrows; |
| ccfda8 | 140 | |
| 36df57 | 141 | //$result = $this->db_handle->query($query,$params); |
| T | 142 | $q = $this->db_handle->prepare($query); |
| 143 | $q->bindParamArray($params); | |
| 144 | $result = $q->execute(); | |
| ccfda8 | 145 | |
| f45ec7 | 146 | if (PEAR::isError($result)) |
| S | 147 | raise_error(array('code' => 500, |
| 148 | 'type' => 'db', | |
| 149 | 'line' => __LINE__, | |
| 150 | 'file' => __FILE__, | |
| 151 | 'message' => $result->getMessage()), TRUE, FALSE); | |
| 152 | ||
| 153 | return $this->_add_result($result, $query); | |
| 154 | } | |
| 155 | ||
| 10a699 | 156 | |
| f45ec7 | 157 | function num_rows($res_id=NULL) |
| S | 158 | { |
| 159 | if (!$this->db_handle) | |
| 160 | return FALSE; | |
| 161 | ||
| 162 | $result = $this->_get_result($res_id); | |
| 163 | ||
| 164 | if ($result) | |
| 165 | return $result->numRows(); | |
| 166 | else | |
| 167 | return FALSE; | |
| 168 | } | |
| 169 | ||
| 10a699 | 170 | |
| f45ec7 | 171 | function affected_rows($res_id=NULL) |
| S | 172 | { |
| 173 | if (!$this->db_handle) | |
| 174 | return FALSE; | |
| 175 | ||
| 176 | return $this->db_handle->affectedRows(); | |
| 177 | } | |
| 10a699 | 178 | |
| f45ec7 | 179 | |
| S | 180 | function insert_id($sequence = '') |
| 181 | { | |
| 182 | if (!$this->db_handle || $this->db_mode=='r') | |
| 183 | return FALSE; | |
| 184 | ||
| 185 | return $this->db_handle->lastInsertID(); | |
| 186 | } | |
| 187 | ||
| 188 | ||
| 189 | function fetch_assoc($res_id=NULL) | |
| 190 | { | |
| 191 | $result = $this->_get_result($res_id); | |
| 192 | ||
| 193 | if (PEAR::isError($result)) | |
| 194 | { | |
| 195 | raise_error( array('code' => 500, 'type' => 'db', 'line' => __LINE__, 'file' => __FILE__, | |
| 196 | 'message' => $this->db_link->getMessage()), TRUE, FALSE); | |
| 197 | return FALSE; | |
| 198 | } | |
| 199 | ||
| 200 | return $result->fetchRow(MDB2_FETCHMODE_ASSOC); | |
| 201 | } | |
| 202 | ||
| ccfda8 | 203 | |
| 10a699 | 204 | function quote($input, $type=null) |
| T | 205 | { |
| d7cb77 | 206 | if (!$this->db_handle) |
| S | 207 | $this->db_connect('r'); |
| ccfda8 | 208 | |
| 10a699 | 209 | return $this->db_handle->quote($input, $type); |
| T | 210 | } |
| 211 | ||
| 212 | ||
| 213 | function quoteIdentifier($str) | |
| 214 | { | |
| 215 | if (!$this->db_handle) | |
| 216 | $this->db_connect('r'); | |
| ccfda8 | 217 | |
| d7cb77 | 218 | return $this->db_handle->quoteIdentifier($str); |
| S | 219 | } |
| ccfda8 | 220 | |
| 10a699 | 221 | function quote_identifier($str) |
| d7cb77 | 222 | { |
| 10a699 | 223 | return $this->quoteIdentifier($str); |
| T | 224 | } |
| ccfda8 | 225 | |
| 10a699 | 226 | |
| T | 227 | function unixtimestamp($field) |
| 228 | { | |
| d7cb77 | 229 | switch($this->db_provider) |
| S | 230 | { |
| 231 | case 'pgsql': | |
| 232 | return "EXTRACT (EPOCH FROM $field)"; | |
| 233 | break; | |
| ccfda8 | 234 | |
| d7cb77 | 235 | default: |
| S | 236 | return "UNIX_TIMESTAMP($field)"; |
| 237 | } | |
| 238 | } | |
| 10a699 | 239 | |
| T | 240 | |
| 1cded8 | 241 | function format_date($timestamp) |
| T | 242 | { |
| 243 | switch($this->db_provider) | |
| 244 | { | |
| 245 | case 'mysqli': | |
| 246 | case 'mysql': | |
| 247 | return "FROM_UNIXTIME($timestamp)"; | |
| 248 | break; | |
| 249 | case 'sqlite': | |
| 250 | return "datetime('$timestamp')"; | |
| 251 | break; | |
| 252 | default: | |
| 253 | return date("Y-m-d H:i:s", $timestamp); | |
| 254 | } | |
| 255 | } | |
| 256 | ||
| f45ec7 | 257 | function _add_result($res, $query) |
| S | 258 | { |
| 259 | // sql error occured | |
| 260 | if (PEAR::isError($res)) | |
| 261 | { | |
| 262 | 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); | |
| 263 | return FALSE; | |
| 264 | } | |
| 265 | else | |
| 266 | { | |
| 267 | $res_id = sizeof($this->a_query_results); | |
| 268 | $this->a_query_results[$res_id] = $res; | |
| 269 | $this->last_res_id = $res_id; | |
| 270 | return $res_id; | |
| 271 | } | |
| 272 | } | |
| 273 | ||
| 274 | ||
| 275 | function _get_result($res_id) | |
| 276 | { | |
| 277 | if ($res_id==NULL) | |
| 278 | $res_id = $this->last_res_id; | |
| 279 | ||
| 280 | if ($res_id && isset($this->a_query_results[$res_id])) | |
| 281 | return $this->a_query_results[$res_id]; | |
| 282 | else | |
| 283 | return FALSE; | |
| 284 | } | |
| 285 | ||
| 286 | ||
| 287 | // create a sqlite database from a file | |
| 288 | function _sqlite_create_database($dbh, $fileName) | |
| 289 | { | |
| 290 | if (empty($fileName) || !is_string($fileName)) | |
| 291 | return ; | |
| 292 | ||
| 293 | $data = ''; | |
| 294 | if ($fd = fopen($fileName, 'r')) | |
| 295 | { | |
| 296 | $data = fread($fd, filesize($fileName)); | |
| 297 | fclose($fd); | |
| 298 | } | |
| 299 | ||
| 300 | if (strlen($data)) | |
| 301 | sqlite_exec($dbh->connection, $data); | |
| 302 | } | |
| 303 | ||
| 304 | // transform a query so that it is sqlite2 compliant | |
| 305 | function _sqlite_prepare_query($query) | |
| 306 | { | |
| 307 | if (!is_string($query)) | |
| 308 | return ($query); | |
| 309 | ||
| ccfda8 | 310 | $search = array('/NOW\(\)/i', '/`/'); |
| T | 311 | $replace = array("datetime('now')", '"'); |
| f45ec7 | 312 | $query = preg_replace($search, $replace, $query); |
| S | 313 | |
| 314 | return ($query); | |
| 315 | } | |
| 316 | ||
| 317 | } | |
| 318 | ||
| 319 | ?> | |
