mtrack /inc/lib/Auth/OpenID/SQLStore.php

Language PHP Lines 570
MD5 Hash 29d29b55d83598a79dad4bed1b3ebb4e Estimated Cost $9,107 (why?)
Repository https://bitbucket.org/yoander/mtrack View Raw File View Project SPDX
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
<?php

/**
 * SQL-backed OpenID stores.
 *
 * PHP versions 4 and 5
 *
 * LICENSE: See the COPYING file included in this distribution.
 *
 * @package OpenID
 * @author JanRain, Inc. <openid@janrain.com>
 * @copyright 2005-2008 Janrain, Inc.
 * @license http://www.apache.org/licenses/LICENSE-2.0 Apache
 */

/**
 * Require the PEAR DB module because we'll need it for the SQL-based
 * stores implemented here.  We silence any errors from the inclusion
 * because it might not be present, and a user of the SQL stores may
 * supply an Auth_OpenID_DatabaseConnection instance that implements
 * its own storage.
 */
global $__Auth_OpenID_PEAR_AVAILABLE;
$__Auth_OpenID_PEAR_AVAILABLE = @include_once 'DB.php';

/**
 * @access private
 */
require_once 'Auth/OpenID/Interface.php';
require_once 'Auth/OpenID/Nonce.php';

/**
 * @access private
 */
require_once 'Auth/OpenID.php';

/**
 * @access private
 */
require_once 'Auth/OpenID/Nonce.php';

/**
 * This is the parent class for the SQL stores, which contains the
 * logic common to all of the SQL stores.
 *
 * The table names used are determined by the class variables
 * associations_table_name and nonces_table_name.  To change the name
 * of the tables used, pass new table names into the constructor.
 *
 * To create the tables with the proper schema, see the createTables
 * method.
 *
 * This class shouldn't be used directly.  Use one of its subclasses
 * instead, as those contain the code necessary to use a specific
 * database.  If you're an OpenID integrator and you'd like to create
 * an SQL-driven store that wraps an application's database
 * abstraction, be sure to create a subclass of
 * {@link Auth_OpenID_DatabaseConnection} that calls the application's
 * database abstraction calls.  Then, pass an instance of your new
 * database connection class to your SQLStore subclass constructor.
 *
 * All methods other than the constructor and createTables should be
 * considered implementation details.
 *
 * @package OpenID
 */
class Auth_OpenID_SQLStore extends Auth_OpenID_OpenIDStore {

    /**
     * This creates a new SQLStore instance.  It requires an
     * established database connection be given to it, and it allows
     * overriding the default table names.
     *
     * @param connection $connection This must be an established
     * connection to a database of the correct type for the SQLStore
     * subclass you're using.  This must either be an PEAR DB
     * connection handle or an instance of a subclass of
     * Auth_OpenID_DatabaseConnection.
     *
     * @param associations_table: This is an optional parameter to
     * specify the name of the table used for storing associations.
     * The default value is 'oid_associations'.
     *
     * @param nonces_table: This is an optional parameter to specify
     * the name of the table used for storing nonces.  The default
     * value is 'oid_nonces'.
     */
    function Auth_OpenID_SQLStore($connection,
                                  $associations_table = null,
                                  $nonces_table = null)
    {
        global $__Auth_OpenID_PEAR_AVAILABLE;

        $this->associations_table_name = "oid_associations";
        $this->nonces_table_name = "oid_nonces";

        // Check the connection object type to be sure it's a PEAR
        // database connection.
        if (!(is_object($connection) &&
              (is_subclass_of($connection, 'db_common') ||
               is_subclass_of($connection,
                              'auth_openid_databaseconnection')))) {
            trigger_error("Auth_OpenID_SQLStore expected PEAR connection " .
                          "object (got ".get_class($connection).")",
                          E_USER_ERROR);
            return;
        }

        $this->connection = $connection;

        // Be sure to set the fetch mode so the results are keyed on
        // column name instead of column index.  This is a PEAR
        // constant, so only try to use it if PEAR is present.  Note
        // that Auth_Openid_Databaseconnection instances need not
        // implement ::setFetchMode for this reason.
        if ($__Auth_OpenID_PEAR_AVAILABLE) {
            $this->connection->setFetchMode(DB_FETCHMODE_ASSOC);
        }

        if ($associations_table) {
            $this->associations_table_name = $associations_table;
        }

        if ($nonces_table) {
            $this->nonces_table_name = $nonces_table;
        }

        $this->max_nonce_age = 6 * 60 * 60;

        // Be sure to run the database queries with auto-commit mode
        // turned OFF, because we want every function to run in a
        // transaction, implicitly.  As a rule, methods named with a
        // leading underscore will NOT control transaction behavior.
        // Callers of these methods will worry about transactions.
        $this->connection->autoCommit(false);

        // Create an empty SQL strings array.
        $this->sql = array();

        // Call this method (which should be overridden by subclasses)
        // to populate the $this->sql array with SQL strings.
        $this->setSQL();

        // Verify that all required SQL statements have been set, and
        // raise an error if any expected SQL strings were either
        // absent or empty.
        list($missing, $empty) = $this->_verifySQL();

        if ($missing) {
            trigger_error("Expected keys in SQL query list: " .
                          implode(", ", $missing),
                          E_USER_ERROR);
            return;
        }

        if ($empty) {
            trigger_error("SQL list keys have no SQL strings: " .
                          implode(", ", $empty),
                          E_USER_ERROR);
            return;
        }

        // Add table names to queries.
        $this->_fixSQL();
    }

    function tableExists($table_name)
    {
        return !$this->isError(
                      $this->connection->query(
                          sprintf("SELECT * FROM %s LIMIT 0",
                                  $table_name)));
    }

    /**
     * Returns true if $value constitutes a database error; returns
     * false otherwise.
     */
    function isError($value)
    {
        return PEAR::isError($value);
    }

    /**
     * Converts a query result to a boolean.  If the result is a
     * database error according to $this->isError(), this returns
     * false; otherwise, this returns true.
     */
    function resultToBool($obj)
    {
        if ($this->isError($obj)) {
            return false;
        } else {
            return true;
        }
    }

    /**
     * This method should be overridden by subclasses.  This method is
     * called by the constructor to set values in $this->sql, which is
     * an array keyed on sql name.
     */
    function setSQL()
    {
    }

    /**
     * Resets the store by removing all records from the store's
     * tables.
     */
    function reset()
    {
        $this->connection->query(sprintf("DELETE FROM %s",
                                         $this->associations_table_name));

        $this->connection->query(sprintf("DELETE FROM %s",
                                         $this->nonces_table_name));
    }

    /**
     * @access private
     */
    function _verifySQL()
    {
        $missing = array();
        $empty = array();

        $required_sql_keys = array(
                                   'nonce_table',
                                   'assoc_table',
                                   'set_assoc',
                                   'get_assoc',
                                   'get_assocs',
                                   'remove_assoc'
                                   );

        foreach ($required_sql_keys as $key) {
            if (!array_key_exists($key, $this->sql)) {
                $missing[] = $key;
            } else if (!$this->sql[$key]) {
                $empty[] = $key;
            }
        }

        return array($missing, $empty);
    }

    /**
     * @access private
     */
    function _fixSQL()
    {
        $replacements = array(
                              array(
                                    'value' => $this->nonces_table_name,
                                    'keys' => array('nonce_table',
                                                    'add_nonce',
                                                    'clean_nonce')
                                    ),
                              array(
                                    'value' => $this->associations_table_name,
                                    'keys' => array('assoc_table',
                                                    'set_assoc',
                                                    'get_assoc',
                                                    'get_assocs',
                                                    'remove_assoc',
                                                    'clean_assoc')
                                    )
                              );

        foreach ($replacements as $item) {
            $value = $item['value'];
            $keys = $item['keys'];

            foreach ($keys as $k) {
                if (is_array($this->sql[$k])) {
                    foreach ($this->sql[$k] as $part_key => $part_value) {
                        $this->sql[$k][$part_key] = sprintf($part_value,
                                                            $value);
                    }
                } else {
                    $this->sql[$k] = sprintf($this->sql[$k], $value);
                }
            }
        }
    }

    function blobDecode($blob)
    {
        return $blob;
    }

    function blobEncode($str)
    {
        return $str;
    }

    function createTables()
    {
        $this->connection->autoCommit(true);
        $n = $this->create_nonce_table();
        $a = $this->create_assoc_table();
        $this->connection->autoCommit(false);

        if ($n && $a) {
            return true;
        } else {
            return false;
        }
    }

    function create_nonce_table()
    {
        if (!$this->tableExists($this->nonces_table_name)) {
            $r = $this->connection->query($this->sql['nonce_table']);
            return $this->resultToBool($r);
        }
        return true;
    }

    function create_assoc_table()
    {
        if (!$this->tableExists($this->associations_table_name)) {
            $r = $this->connection->query($this->sql['assoc_table']);
            return $this->resultToBool($r);
        }
        return true;
    }

    /**
     * @access private
     */
    function _set_assoc($server_url, $handle, $secret, $issued,
                        $lifetime, $assoc_type)
    {
        return $this->connection->query($this->sql['set_assoc'],
                                        array(
                                              $server_url,
                                              $handle,
                                              $secret,
                                              $issued,
                                              $lifetime,
                                              $assoc_type));
    }

    function storeAssociation($server_url, $association)
    {
        if ($this->resultToBool($this->_set_assoc(
                                            $server_url,
                                            $association->handle,
                                            $this->blobEncode(
                                                  $association->secret),
                                            $association->issued,
                                            $association->lifetime,
                                            $association->assoc_type
                                            ))) {
            $this->connection->commit();
        } else {
            $this->connection->rollback();
        }
    }

    /**
     * @access private
     */
    function _get_assoc($server_url, $handle)
    {
        $result = $this->connection->getRow($this->sql['get_assoc'],
                                            array($server_url, $handle));
        if ($this->isError($result)) {
            return null;
        } else {
            return $result;
        }
    }

    /**
     * @access private
     */
    function _get_assocs($server_url)
    {
        $result = $this->connection->getAll($this->sql['get_assocs'],
                                            array($server_url));

        if ($this->isError($result)) {
            return array();
        } else {
            return $result;
        }
    }

    function removeAssociation($server_url, $handle)
    {
        if ($this->_get_assoc($server_url, $handle) == null) {
            return false;
        }

        if ($this->resultToBool($this->connection->query(
                              $this->sql['remove_assoc'],
                              array($server_url, $handle)))) {
            $this->connection->commit();
        } else {
            $this->connection->rollback();
        }

        return true;
    }

    function getAssociation($server_url, $handle = null)
    {
        if ($handle !== null) {
            $assoc = $this->_get_assoc($server_url, $handle);

            $assocs = array();
            if ($assoc) {
                $assocs[] = $assoc;
            }
        } else {
            $assocs = $this->_get_assocs($server_url);
        }

        if (!$assocs || (count($assocs) == 0)) {
            return null;
        } else {
            $associations = array();

            foreach ($assocs as $assoc_row) {
                $assoc = new Auth_OpenID_Association($assoc_row['handle'],
                                                     $assoc_row['secret'],
                                                     $assoc_row['issued'],
                                                     $assoc_row['lifetime'],
                                                     $assoc_row['assoc_type']);

                $assoc->secret = $this->blobDecode($assoc->secret);

                if ($assoc->getExpiresIn() == 0) {
                    $this->removeAssociation($server_url, $assoc->handle);
                } else {
                    $associations[] = array($assoc->issued, $assoc);
                }
            }

            if ($associations) {
                $issued = array();
                $assocs = array();
                foreach ($associations as $key => $assoc) {
                    $issued[$key] = $assoc[0];
                    $assocs[$key] = $assoc[1];
                }

                array_multisort($issued, SORT_DESC, $assocs, SORT_DESC,
                                $associations);

                // return the most recently issued one.
                list($issued, $assoc) = $associations[0];
                return $assoc;
            } else {
                return null;
            }
        }
    }

    /**
     * @access private
     */
    function _add_nonce($server_url, $timestamp, $salt)
    {
        $sql = $this->sql['add_nonce'];
        $result = $this->connection->query($sql, array($server_url,
                                                       $timestamp,
                                                       $salt));
        if ($this->isError($result)) {
            $this->connection->rollback();
        } else {
            $this->connection->commit();
        }
        return $this->resultToBool($result);
    }

    function useNonce($server_url, $timestamp, $salt)
    {
        global $Auth_OpenID_SKEW;

        if ( abs($timestamp - time()) > $Auth_OpenID_SKEW ) {
            return False;
        }

        return $this->_add_nonce($server_url, $timestamp, $salt);
    }

    /**
     * "Octifies" a binary string by returning a string with escaped
     * octal bytes.  This is used for preparing binary data for
     * PostgreSQL BYTEA fields.
     *
     * @access private
     */
    function _octify($str)
    {
        $result = "";
        for ($i = 0; $i < Auth_OpenID::bytes($str); $i++) {
            $ch = substr($str, $i, 1);
            if ($ch == "\\") {
                $result .= "\\\\\\\\";
            } else if (ord($ch) == 0) {
                $result .= "\\\\000";
            } else {
                $result .= "\\" . strval(decoct(ord($ch)));
            }
        }
        return $result;
    }

    /**
     * "Unoctifies" octal-escaped data from PostgreSQL and returns the
     * resulting ASCII (possibly binary) string.
     *
     * @access private
     */
    function _unoctify($str)
    {
        $result = "";
        $i = 0;
        while ($i < strlen($str)) {
            $char = $str[$i];
            if ($char == "\\") {
                // Look to see if the next char is a backslash and
                // append it.
                if ($str[$i + 1] != "\\") {
                    $octal_digits = substr($str, $i + 1, 3);
                    $dec = octdec($octal_digits);
                    $char = chr($dec);
                    $i += 4;
                } else {
                    $char = "\\";
                    $i += 2;
                }
            } else {
                $i += 1;
            }

            $result .= $char;
        }

        return $result;
    }

    function cleanupNonces()
    {
        global $Auth_OpenID_SKEW;
        $v = time() - $Auth_OpenID_SKEW;

        $this->connection->query($this->sql['clean_nonce'], array($v));
        $num = $this->connection->affectedRows();
        $this->connection->commit();
        return $num;
    }

    function cleanupAssociations()
    {
        $this->connection->query($this->sql['clean_assoc'],
                                 array(time()));
        $num = $this->connection->affectedRows();
        $this->connection->commit();
        return $num;
    }
}

?>
Back to Top