1 | <?php |
---|
2 | /* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */ |
---|
3 | |
---|
4 | /** |
---|
5 | * Storage driver for use against PEAR MDB |
---|
6 | * |
---|
7 | * PHP versions 4 and 5 |
---|
8 | * |
---|
9 | * LICENSE: This source file is subject to version 3.01 of the PHP license |
---|
10 | * that is available through the world-wide-web at the following URI: |
---|
11 | * http://www.php.net/license/3_01.txt. If you did not receive a copy of |
---|
12 | * the PHP License and are unable to obtain it through the web, please |
---|
13 | * send a note to license@php.net so we can mail you a copy immediately. |
---|
14 | * |
---|
15 | * @category Authentication |
---|
16 | * @package Auth |
---|
17 | * @author Lorenzo Alberton <l.alberton@quipo.it> |
---|
18 | * @author Adam Ashley <aashley@php.net> |
---|
19 | * @copyright 2001-2006 The PHP Group |
---|
20 | * @license http://www.php.net/license/3_01.txt PHP License 3.01 |
---|
21 | * @version CVS: $Id: MDB.php 8713 2006-12-01 05:08:34Z kakinaka $ |
---|
22 | * @link http://pear.php.net/package/Auth |
---|
23 | * @since File available since Release 1.2.3 |
---|
24 | */ |
---|
25 | |
---|
26 | /** |
---|
27 | * Include Auth_Container base class |
---|
28 | */ |
---|
29 | require_once 'Auth/Container.php'; |
---|
30 | /** |
---|
31 | * Include PEAR MDB package |
---|
32 | */ |
---|
33 | require_once 'MDB.php'; |
---|
34 | |
---|
35 | /** |
---|
36 | * Storage driver for fetching login data from a database |
---|
37 | * |
---|
38 | * This storage driver can use all databases which are supported |
---|
39 | * by the PEAR MDB abstraction layer to fetch login data. |
---|
40 | * |
---|
41 | * @category Authentication |
---|
42 | * @package Auth |
---|
43 | * @author Lorenzo Alberton <l.alberton@quipo.it> |
---|
44 | * @author Adam Ashley <aashley@php.net> |
---|
45 | * @copyright 2001-2006 The PHP Group |
---|
46 | * @license http://www.php.net/license/3_01.txt PHP License 3.01 |
---|
47 | * @version Release: 1.4.2 File: $Revision: 8713 $ |
---|
48 | * @link http://pear.php.net/package/Auth |
---|
49 | * @since Class available since Release 1.2.3 |
---|
50 | */ |
---|
51 | class Auth_Container_MDB extends Auth_Container |
---|
52 | { |
---|
53 | |
---|
54 | // {{{ properties |
---|
55 | |
---|
56 | /** |
---|
57 | * Additional options for the storage container |
---|
58 | * @var array |
---|
59 | */ |
---|
60 | var $options = array(); |
---|
61 | |
---|
62 | /** |
---|
63 | * MDB object |
---|
64 | * @var object |
---|
65 | */ |
---|
66 | var $db = null; |
---|
67 | var $dsn = ''; |
---|
68 | |
---|
69 | /** |
---|
70 | * User that is currently selected from the DB. |
---|
71 | * @var string |
---|
72 | */ |
---|
73 | var $activeUser = ''; |
---|
74 | |
---|
75 | // }}} |
---|
76 | // {{{ Auth_Container_MDB() [constructor] |
---|
77 | |
---|
78 | /** |
---|
79 | * Constructor of the container class |
---|
80 | * |
---|
81 | * Initate connection to the database via PEAR::MDB |
---|
82 | * |
---|
83 | * @param string Connection data or MDB object |
---|
84 | * @return object Returns an error object if something went wrong |
---|
85 | */ |
---|
86 | function Auth_Container_MDB($dsn) |
---|
87 | { |
---|
88 | $this->_setDefaults(); |
---|
89 | |
---|
90 | if (is_array($dsn)) { |
---|
91 | $this->_parseOptions($dsn); |
---|
92 | if (empty($this->options['dsn'])) { |
---|
93 | PEAR::raiseError('No connection parameters specified!'); |
---|
94 | } |
---|
95 | } else { |
---|
96 | $this->options['dsn'] = $dsn; |
---|
97 | } |
---|
98 | } |
---|
99 | |
---|
100 | // }}} |
---|
101 | // {{{ _connect() |
---|
102 | |
---|
103 | /** |
---|
104 | * Connect to database by using the given DSN string |
---|
105 | * |
---|
106 | * @access private |
---|
107 | * @param mixed DSN string | array | mdb object |
---|
108 | * @return mixed Object on error, otherwise bool |
---|
109 | */ |
---|
110 | function _connect($dsn) |
---|
111 | { |
---|
112 | if (is_string($dsn) || is_array($dsn)) { |
---|
113 | $this->db =& MDB::connect($dsn, $this->options['db_options']); |
---|
114 | } elseif (is_subclass_of($dsn, 'mdb_common')) { |
---|
115 | $this->db = $dsn; |
---|
116 | } elseif (is_object($dsn) && MDB::isError($dsn)) { |
---|
117 | return PEAR::raiseError($dsn->getMessage(), $dsn->code); |
---|
118 | } else { |
---|
119 | return PEAR::raiseError('The given dsn was not valid in file ' . __FILE__ . ' at line ' . __LINE__, |
---|
120 | 41, |
---|
121 | PEAR_ERROR_RETURN, |
---|
122 | null, |
---|
123 | null |
---|
124 | ); |
---|
125 | |
---|
126 | } |
---|
127 | |
---|
128 | if (MDB::isError($this->db) || PEAR::isError($this->db)) { |
---|
129 | return PEAR::raiseError($this->db->getMessage(), $this->db->code); |
---|
130 | } |
---|
131 | |
---|
132 | if ($this->options['auto_quote']) { |
---|
133 | $this->options['final_table'] = $this->db->quoteIdentifier($this->options['table']); |
---|
134 | $this->options['final_usernamecol'] = $this->db->quoteIdentifier($this->options['usernamecol']); |
---|
135 | $this->options['final_passwordcol'] = $this->db->quoteIdentifier($this->options['passwordcol']); |
---|
136 | } else { |
---|
137 | $this->options['final_table'] = $this->options['table']; |
---|
138 | $this->options['final_usernamecol'] = $this->options['usernamecol']; |
---|
139 | $this->options['final_passwordcol'] = $this->options['passwordcol']; |
---|
140 | } |
---|
141 | |
---|
142 | return true; |
---|
143 | } |
---|
144 | |
---|
145 | // }}} |
---|
146 | // {{{ _prepare() |
---|
147 | |
---|
148 | /** |
---|
149 | * Prepare database connection |
---|
150 | * |
---|
151 | * This function checks if we have already opened a connection to |
---|
152 | * the database. If that's not the case, a new connection is opened. |
---|
153 | * |
---|
154 | * @access private |
---|
155 | * @return mixed True or a MDB error object. |
---|
156 | */ |
---|
157 | function _prepare() |
---|
158 | { |
---|
159 | if (is_subclass_of($this->db, 'mdb_common')) { |
---|
160 | return true; |
---|
161 | } |
---|
162 | return $this->_connect($this->options['dsn']); |
---|
163 | } |
---|
164 | |
---|
165 | // }}} |
---|
166 | // {{{ query() |
---|
167 | |
---|
168 | /** |
---|
169 | * Prepare query to the database |
---|
170 | * |
---|
171 | * This function checks if we have already opened a connection to |
---|
172 | * the database. If that's not the case, a new connection is opened. |
---|
173 | * After that the query is passed to the database. |
---|
174 | * |
---|
175 | * @access public |
---|
176 | * @param string Query string |
---|
177 | * @return mixed a MDB_result object or MDB_OK on success, a MDB |
---|
178 | * or PEAR error on failure |
---|
179 | */ |
---|
180 | function query($query) |
---|
181 | { |
---|
182 | $err = $this->_prepare(); |
---|
183 | if ($err !== true) { |
---|
184 | return $err; |
---|
185 | } |
---|
186 | return $this->db->query($query); |
---|
187 | } |
---|
188 | |
---|
189 | // }}} |
---|
190 | // {{{ _setDefaults() |
---|
191 | |
---|
192 | /** |
---|
193 | * Set some default options |
---|
194 | * |
---|
195 | * @access private |
---|
196 | * @return void |
---|
197 | */ |
---|
198 | function _setDefaults() |
---|
199 | { |
---|
200 | $this->options['table'] = 'auth'; |
---|
201 | $this->options['usernamecol'] = 'username'; |
---|
202 | $this->options['passwordcol'] = 'password'; |
---|
203 | $this->options['dsn'] = ''; |
---|
204 | $this->options['db_fields'] = ''; |
---|
205 | $this->options['cryptType'] = 'md5'; |
---|
206 | $this->options['db_options'] = array(); |
---|
207 | $this->options['auto_quote'] = true; |
---|
208 | } |
---|
209 | |
---|
210 | // }}} |
---|
211 | // {{{ _parseOptions() |
---|
212 | |
---|
213 | /** |
---|
214 | * Parse options passed to the container class |
---|
215 | * |
---|
216 | * @access private |
---|
217 | * @param array |
---|
218 | */ |
---|
219 | function _parseOptions($array) |
---|
220 | { |
---|
221 | foreach ($array as $key => $value) { |
---|
222 | if (isset($this->options[$key])) { |
---|
223 | $this->options[$key] = $value; |
---|
224 | } |
---|
225 | } |
---|
226 | } |
---|
227 | |
---|
228 | // }}} |
---|
229 | // {{{ _quoteDBFields() |
---|
230 | |
---|
231 | /** |
---|
232 | * Quote the db_fields option to avoid the possibility of SQL injection. |
---|
233 | * |
---|
234 | * @access private |
---|
235 | * @return string A properly quoted string that can be concatenated into a |
---|
236 | * SELECT clause. |
---|
237 | */ |
---|
238 | function _quoteDBFields() |
---|
239 | { |
---|
240 | if (isset($this->options['db_fields'])) { |
---|
241 | if (is_array($this->options['db_fields'])) { |
---|
242 | if ($this->options['auto_quote']) { |
---|
243 | $fields = array(); |
---|
244 | foreach ($this->options['db_fields'] as $field) { |
---|
245 | $fields[] = $this->db->quoteIdentifier($field); |
---|
246 | } |
---|
247 | return implode(', ', $fields); |
---|
248 | } else { |
---|
249 | return implode(', ', $this->options['db_fields']); |
---|
250 | } |
---|
251 | } else { |
---|
252 | if (strlen($this->options['db_fields']) > 0) { |
---|
253 | if ($this->options['auto_quote']) { |
---|
254 | return $this->db->quoteIdentifier($this->options['db_fields']); |
---|
255 | } else { |
---|
256 | return $this->options['db_fields']; |
---|
257 | } |
---|
258 | } |
---|
259 | } |
---|
260 | } |
---|
261 | |
---|
262 | return ''; |
---|
263 | } |
---|
264 | |
---|
265 | // }}} |
---|
266 | // {{{ fetchData() |
---|
267 | |
---|
268 | /** |
---|
269 | * Get user information from database |
---|
270 | * |
---|
271 | * This function uses the given username to fetch |
---|
272 | * the corresponding login data from the database |
---|
273 | * table. If an account that matches the passed username |
---|
274 | * and password is found, the function returns true. |
---|
275 | * Otherwise it returns false. |
---|
276 | * |
---|
277 | * @param string Username |
---|
278 | * @param string Password |
---|
279 | * @param boolean If true password is secured using a md5 hash |
---|
280 | * the frontend and auth are responsible for making sure the container supports |
---|
281 | * challenge response password authentication |
---|
282 | * @return mixed Error object or boolean |
---|
283 | */ |
---|
284 | function fetchData($username, $password, $isChallengeResponse=false) |
---|
285 | { |
---|
286 | // Prepare for a database query |
---|
287 | $err = $this->_prepare(); |
---|
288 | if ($err !== true) { |
---|
289 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
---|
290 | } |
---|
291 | |
---|
292 | //Check if db_fields contains a *, if so assume all columns are selected |
---|
293 | if (is_string($this->options['db_fields']) |
---|
294 | && strstr($this->options['db_fields'], '*')) { |
---|
295 | $sql_from = '*'; |
---|
296 | } else { |
---|
297 | $sql_from = $this->options['final_usernamecol']. |
---|
298 | ", ".$this->options['final_passwordcol']; |
---|
299 | |
---|
300 | if (strlen($fields = $this->_quoteDBFields()) > 0) { |
---|
301 | $sql_from .= ', '.$fields; |
---|
302 | } |
---|
303 | } |
---|
304 | |
---|
305 | $query = sprintf("SELECT %s FROM %s WHERE %s = %s", |
---|
306 | $sql_from, |
---|
307 | $this->options['final_table'], |
---|
308 | $this->options['final_usernamecol'], |
---|
309 | $this->db->getTextValue($username) |
---|
310 | ); |
---|
311 | |
---|
312 | $res = $this->db->getRow($query, null, null, null, MDB_FETCHMODE_ASSOC); |
---|
313 | |
---|
314 | if (MDB::isError($res) || PEAR::isError($res)) { |
---|
315 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
---|
316 | } |
---|
317 | if (!is_array($res)) { |
---|
318 | $this->activeUser = ''; |
---|
319 | return false; |
---|
320 | } |
---|
321 | |
---|
322 | // Perform trimming here before the hashing |
---|
323 | $password = trim($password, "\r\n"); |
---|
324 | $res[$this->options['passwordcol']] = trim($res[$this->options['passwordcol']], "\r\n"); |
---|
325 | |
---|
326 | // If using Challenge Response md5 the pass with the secret |
---|
327 | if ($isChallengeResponse) { |
---|
328 | $res[$this->options['passwordcol']] = |
---|
329 | md5($res[$this->options['passwordcol']].$this->_auth_obj->session['loginchallenege']); |
---|
330 | // UGLY cannot avoid without modifying verifyPassword |
---|
331 | if ($this->options['cryptType'] == 'md5') { |
---|
332 | $res[$this->options['passwordcol']] = md5($res[$this->options['passwordcol']]); |
---|
333 | } |
---|
334 | } |
---|
335 | |
---|
336 | if ($this->verifyPassword($password, |
---|
337 | $res[$this->options['passwordcol']], |
---|
338 | $this->options['cryptType'])) { |
---|
339 | // Store additional field values in the session |
---|
340 | foreach ($res as $key => $value) { |
---|
341 | if ($key == $this->options['passwordcol'] || |
---|
342 | $key == $this->options['usernamecol']) { |
---|
343 | continue; |
---|
344 | } |
---|
345 | // Use reference to the auth object if exists |
---|
346 | // This is because the auth session variable can change so a static |
---|
347 | // call to setAuthData does not make sense |
---|
348 | $this->_auth_obj->setAuthData($key, $value); |
---|
349 | } |
---|
350 | return true; |
---|
351 | } |
---|
352 | |
---|
353 | $this->activeUser = $res[$this->options['usernamecol']]; |
---|
354 | return false; |
---|
355 | } |
---|
356 | |
---|
357 | // }}} |
---|
358 | // {{{ listUsers() |
---|
359 | |
---|
360 | /** |
---|
361 | * Returns a list of users from the container |
---|
362 | * |
---|
363 | * @return mixed array|PEAR_Error |
---|
364 | * @access public |
---|
365 | */ |
---|
366 | function listUsers() |
---|
367 | { |
---|
368 | $err = $this->_prepare(); |
---|
369 | if ($err !== true) { |
---|
370 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
---|
371 | } |
---|
372 | |
---|
373 | $retVal = array(); |
---|
374 | |
---|
375 | //Check if db_fields contains a *, if so assume all columns are selected |
---|
376 | if ( is_string($this->options['db_fields']) |
---|
377 | && strstr($this->options['db_fields'], '*')) { |
---|
378 | $sql_from = '*'; |
---|
379 | } else { |
---|
380 | $sql_from = $this->options['final_usernamecol'] |
---|
381 | .', '.$this->options['final_passwordcol']; |
---|
382 | |
---|
383 | if (strlen($fields = $this->_quoteDBFields()) > 0) { |
---|
384 | $sql_from .= ', '.$fields; |
---|
385 | } |
---|
386 | } |
---|
387 | |
---|
388 | $query = sprintf('SELECT %s FROM %s', |
---|
389 | $sql_from, |
---|
390 | $this->options['final_table'] |
---|
391 | ); |
---|
392 | |
---|
393 | $res = $this->db->getAll($query, null, null, null, MDB_FETCHMODE_ASSOC); |
---|
394 | |
---|
395 | if (MDB::isError($res)) { |
---|
396 | return PEAR::raiseError($res->getMessage(), $res->getCode()); |
---|
397 | } else { |
---|
398 | foreach ($res as $user) { |
---|
399 | $user['username'] = $user[$this->options['usernamecol']]; |
---|
400 | $retVal[] = $user; |
---|
401 | } |
---|
402 | } |
---|
403 | return $retVal; |
---|
404 | } |
---|
405 | |
---|
406 | // }}} |
---|
407 | // {{{ addUser() |
---|
408 | |
---|
409 | /** |
---|
410 | * Add user to the storage container |
---|
411 | * |
---|
412 | * @access public |
---|
413 | * @param string Username |
---|
414 | * @param string Password |
---|
415 | * @param mixed Additional information that are stored in the DB |
---|
416 | * |
---|
417 | * @return mixed True on success, otherwise error object |
---|
418 | */ |
---|
419 | function addUser($username, $password, $additional = "") |
---|
420 | { |
---|
421 | $err = $this->_prepare(); |
---|
422 | if ($err !== true) { |
---|
423 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
---|
424 | } |
---|
425 | |
---|
426 | if (isset($this->options['cryptType']) && $this->options['cryptType'] == 'none') { |
---|
427 | $cryptFunction = 'strval'; |
---|
428 | } elseif (isset($this->options['cryptType']) && function_exists($this->options['cryptType'])) { |
---|
429 | $cryptFunction = $this->options['cryptType']; |
---|
430 | } else { |
---|
431 | $cryptFunction = 'md5'; |
---|
432 | } |
---|
433 | |
---|
434 | $password = $cryptFunction($password); |
---|
435 | |
---|
436 | $additional_key = ''; |
---|
437 | $additional_value = ''; |
---|
438 | |
---|
439 | if (is_array($additional)) { |
---|
440 | foreach ($additional as $key => $value) { |
---|
441 | if ($this->options['auto_quote']) { |
---|
442 | $additional_key .= ', ' . $this->db->quoteIdentifier($key); |
---|
443 | } else { |
---|
444 | $additional_key .= ', ' . $key; |
---|
445 | } |
---|
446 | $additional_value .= ', ' . $this->db->getTextValue($value); |
---|
447 | } |
---|
448 | } |
---|
449 | |
---|
450 | $query = sprintf("INSERT INTO %s (%s, %s%s) VALUES (%s, %s%s)", |
---|
451 | $this->options['final_table'], |
---|
452 | $this->options['final_usernamecol'], |
---|
453 | $this->options['final_passwordcol'], |
---|
454 | $additional_key, |
---|
455 | $this->db->getTextValue($username), |
---|
456 | $this->db->getTextValue($password), |
---|
457 | $additional_value |
---|
458 | ); |
---|
459 | |
---|
460 | $res = $this->query($query); |
---|
461 | |
---|
462 | if (MDB::isError($res)) { |
---|
463 | return PEAR::raiseError($res->getMessage(), $res->code); |
---|
464 | } |
---|
465 | return true; |
---|
466 | } |
---|
467 | |
---|
468 | // }}} |
---|
469 | // {{{ removeUser() |
---|
470 | |
---|
471 | /** |
---|
472 | * Remove user from the storage container |
---|
473 | * |
---|
474 | * @access public |
---|
475 | * @param string Username |
---|
476 | * |
---|
477 | * @return mixed True on success, otherwise error object |
---|
478 | */ |
---|
479 | function removeUser($username) |
---|
480 | { |
---|
481 | $err = $this->_prepare(); |
---|
482 | if ($err !== true) { |
---|
483 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
---|
484 | } |
---|
485 | |
---|
486 | $query = sprintf("DELETE FROM %s WHERE %s = %s", |
---|
487 | $this->options['final_table'], |
---|
488 | $this->options['final_usernamecol'], |
---|
489 | $this->db->getTextValue($username) |
---|
490 | ); |
---|
491 | |
---|
492 | $res = $this->query($query); |
---|
493 | |
---|
494 | if (MDB::isError($res)) { |
---|
495 | return PEAR::raiseError($res->getMessage(), $res->code); |
---|
496 | } |
---|
497 | return true; |
---|
498 | } |
---|
499 | |
---|
500 | // }}} |
---|
501 | // {{{ changePassword() |
---|
502 | |
---|
503 | /** |
---|
504 | * Change password for user in the storage container |
---|
505 | * |
---|
506 | * @param string Username |
---|
507 | * @param string The new password (plain text) |
---|
508 | */ |
---|
509 | function changePassword($username, $password) |
---|
510 | { |
---|
511 | $err = $this->_prepare(); |
---|
512 | if ($err !== true) { |
---|
513 | return PEAR::raiseError($err->getMessage(), $err->getCode()); |
---|
514 | } |
---|
515 | |
---|
516 | if (isset($this->options['cryptType']) && $this->options['cryptType'] == 'none') { |
---|
517 | $cryptFunction = 'strval'; |
---|
518 | } elseif (isset($this->options['cryptType']) && function_exists($this->options['cryptType'])) { |
---|
519 | $cryptFunction = $this->options['cryptType']; |
---|
520 | } else { |
---|
521 | $cryptFunction = 'md5'; |
---|
522 | } |
---|
523 | |
---|
524 | $password = $cryptFunction($password); |
---|
525 | |
---|
526 | $query = sprintf("UPDATE %s SET %s = %s WHERE %s = %s", |
---|
527 | $this->options['final_table'], |
---|
528 | $this->options['final_passwordcol'], |
---|
529 | $this->db->getTextValue($password), |
---|
530 | $this->options['final_usernamecol'], |
---|
531 | $this->db->getTextValue($username) |
---|
532 | ); |
---|
533 | |
---|
534 | $res = $this->query($query); |
---|
535 | |
---|
536 | if (MDB::isError($res)) { |
---|
537 | return PEAR::raiseError($res->getMessage(), $res->code); |
---|
538 | } |
---|
539 | return true; |
---|
540 | } |
---|
541 | |
---|
542 | // }}} |
---|
543 | // {{{ supportsChallengeResponse() |
---|
544 | |
---|
545 | /** |
---|
546 | * Determine if this container supports |
---|
547 | * password authentication with challenge response |
---|
548 | * |
---|
549 | * @return bool |
---|
550 | * @access public |
---|
551 | */ |
---|
552 | function supportsChallengeResponse() |
---|
553 | { |
---|
554 | return in_array($this->options['cryptType'], array('md5', 'none', '')); |
---|
555 | } |
---|
556 | |
---|
557 | // }}} |
---|
558 | // {{{ getCryptType() |
---|
559 | |
---|
560 | /** |
---|
561 | * Returns the selected crypt type for this container |
---|
562 | * |
---|
563 | * @return string Function used to crypt the password |
---|
564 | */ |
---|
565 | function getCryptType() |
---|
566 | { |
---|
567 | return $this->options['cryptType']; |
---|
568 | } |
---|
569 | |
---|
570 | // }}} |
---|
571 | |
---|
572 | } |
---|
573 | ?> |
---|