summaryrefslogtreecommitdiff
path: root/program/include/rcube_ldap.inc
blob: 055c346e11ad96f1f422c8220b864ab7d431c82a (plain)
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
<?php

/*
 +-----------------------------------------------------------------------+
 | program/include/rcube_ldap.inc                                        |
 |                                                                       |
 | This file is part of the RoundCube Webmail client                     |
 | Copyright (C) 2006-2007, RoundCube Dev. - Switzerland                 |
 | Licensed under the GNU GPL                                            |
 |                                                                       |
 | PURPOSE:                                                              |
 |   Interface to an LDAP address directory                              |
 |                                                                       |
 +-----------------------------------------------------------------------+
 | Author: Thomas Bruederli <roundcube@gmail.com>                        |
 +-----------------------------------------------------------------------+

 $Id$

*/

class rcube_ldap
{
  var $conn;
  var $prop = array();
  var $fieldmap = array();
  
  var $filter = '';
  var $result = null;
  var $ldap_result = null;
  var $sort_col = '';
  
  /** public properties */
  var $primary_key = 'ID';
  var $readonly = true;
  var $list_page = 1;
  var $page_size = 10;
  var $ready = false;
  
  
  /**
   * Object constructor
   *
   * @param array LDAP connection properties
   * @param integer User-ID
   */
  function __construct($p)
  {
    $this->prop = $p;
    
    foreach ($p as $prop => $value)
      if (preg_match('/^(.+)_field$/', $prop, $matches))
        $this->fieldmap[$matches[1]] = $value;
    
    // $this->filter = "(dn=*)";
    $this->connect();
  }

  /**
   * PHP 4 object constructor
   *
   * @see  rcube_ldap::__construct
   */
  function rcube_ldap($p)
  {
    $this->__construct($p);
  }
  

  /**
   * Establish a connection to the LDAP server
   */
  function connect()
  {
    if (!function_exists('ldap_connect'))
      raise_error(array('type' => 'ldap', 'message' => "No ldap support in this installation of PHP"), true);

    if (is_resource($this->conn))
      return true;
    
    if (!is_array($this->prop['hosts']))
      $this->prop['hosts'] = array($this->prop['hosts']);

    foreach ($this->prop['hosts'] as $host)
    {
      if ($lc = @ldap_connect($host, $this->prop['port']))
      {
        ldap_set_option($lc, LDAP_OPT_PROTOCOL_VERSION, $this->prop['port']);
        $this->prop['host'] = $host;
        $this->conn = $lc;
        break;
      }
    }
    
    if (is_resource($this->conn))
    {
      $this->ready = true;
      if (!empty($this->prop['bind_dn']) && !empty($this->prop['bind_pass']))
        $this->ready = $this->bind($this->prop['bind_dn'], $this->prop['bind_pass']);
    }
    else
      raise_error(array('type' => 'ldap', 'message' => "Could not connect to any LDAP server, tried $host:{$this->prop[port]} last"), true);
  }


  /**
   * Bind connection with DN and password
   */
  function bind($dn, $pass)
  {
    if (!$this->conn)
      return false;
    
    if (@ldap_bind($this->conn, $dn, $pass))
      return true;
    else
    {
      raise_error(array(
        'code' => ldap_errno($this->conn),
        'type' => 'ldap',
        'message' => "Bind failed for dn=$dn: ".ldap_error($this->conn)),
      true);
    }
    
    return false;
  }


  /**
   * Close connection to LDAP server
   */
  function close()
  {
    if ($this->conn)
      @ldap_unbind($this->conn);
  }


  /**
   * Set internal list page
   *
   * @param  number  Page number to list
   * @access public
   */
  function set_page($page)
  {
    $this->list_page = (int)$page;
  }


  /**
   * Set internal page size
   *
   * @param  number  Number of messages to display on one page
   * @access public
   */
  function set_pagesize($size)
  {
    $this->page_size = (int)$size;
  }


  /**
   * Save a search string for future listings
   *
   * @param string ??
   */
  function set_search_set($filter)
  {
    $this->filter = $filter;
  }
  
  
  /**
   * Getter for saved search properties
   *
   * @return mixed Search properties used by this class
   */
  function get_search_set()
  {
    return $this->filter;
  }


  /**
   * Reset all saved results and search parameters
   */
  function reset()
  {
    $this->result = null;
    $this->ldap_result = null;
    $this->filter = '';
  }
  
  
  /**
   * List the current set of contact records
   *
   * @param  array  List of cols to show
   * @return array  Indexed list of contact records, each a hash array
   */
  function list_records($cols=null, $subset=0)
  {
    // exec LDAP search if no result resource is stored
    if ($this->conn && !$this->ldap_result)
      $this->_exec_search();
    
    // count contacts for this user
    $this->result = $this->count();
    
    // we have a search result resource
    if ($this->ldap_result && $this->result->count > 0)
    {
      if ($this->sort_col && $this->prop['scope'] !== "base")
        @ldap_sort($this->conn, $this->ldap_result, $this->sort_col);
        
      $entries = ldap_get_entries($this->conn, $this->ldap_result);
      for ($i = $this->result->first; $i < min($entries['count'], $this->result->first + $this->page_size); $i++)
        $this->result->add($this->_ldap2result($entries[$i]));
    }

    return $this->result;
  }


  /**
   * Search contacts
   *
   * @param array   List of fields to search in
   * @param string  Search value
   * @param boolean True if results are requested, False if count only
   * @return Indexed list of contact records and 'count' value
   */
  function search($fields, $value, $select=true)
  {
    // special treatment for ID-based search
    if ($fields == 'ID' || $fields == $this->primary_key)
    {
      $ids = explode(',', $value);
      $result = new rcube_result_set();
      foreach ($ids as $id)
        if ($rec = $this->get_record($id, true))
        {
          $result->add($rec);
          $result->count++;
        }
      
      return $result;
    }
    
    $filter = '(|';
    $wc = $this->prop['fuzzy_search'] ? '*' : '';
    if (is_array($this->prop['search_fields']))
    {
      foreach ($this->prop['search_fields'] as $k => $field)
        $filter .= "($field=$wc" . rcube_ldap::quote_string($value) . "$wc)";
    }
    else
    {
      foreach ((array)$fields as $field)
        if ($f = $this->_map_field($field))
          $filter .= "($f=$wc" . rcube_ldap::quote_string($value) . "$wc)";
    }
    $filter .= ')';
    
    // add general filter to query
    if (!empty($this->prop['filter']))
      $filter = '(&'.$this->prop['filter'] . $filter . ')';

    // set filter string and execute search
    $this->set_search_set($filter);
    $this->_exec_search();
    
    if ($select)
      $this->list_records();
    else
      $this->result = $this->count();
   
    return $this->result; 
  }


  /**
   * Count number of available contacts in database
   *
   * @return Result array with values for 'count' and 'first'
   */
  function count()
  {
    $count = 0;
    if ($this->conn && $this->ldap_result)
      $count = ldap_count_entries($this->conn, $this->ldap_result);

    return new rcube_result_set($count, ($this->list_page-1) * $this->page_size);
  }


  /**
   * Return the last result set
   *
   * @return Result array or NULL if nothing selected yet
   */
  function get_result()
  {
    return $this->result;
  }
  
  
  /**
   * Get a specific contact record
   *
   * @param mixed record identifier
   * @return Hash array with all record fields or False if not found
   */
  function get_record($dn, $assoc=false)
  {
    $res = null;
    if ($this->conn && $dn)
    {
      $this->ldap_result = @ldap_read($this->conn, base64_decode($dn), "(objectclass=*)", array_values($this->fieldmap));
      $entry = @ldap_first_entry($this->conn, $this->ldap_result);
      
      if ($entry && ($rec = ldap_get_attributes($this->conn, $entry)))
      {
        $res = $this->_ldap2result($rec);
        $this->result = new rcube_result_set(1);
        $this->result->add($res);
      }
    }

    return $assoc ? $res : $this->result;
  }
  
  
  /**
   * Create a new contact record
   *
   * @param array Assoziative array with save data
   * @return The create record ID on success, False on error
   */
  function insert($save_cols)
  {
    // TODO
    return false;
  }
  
  
  /**
   * Update a specific contact record
   *
   * @param mixed Record identifier
   * @param array Assoziative array with save data
   * @return True on success, False on error
   */
  function update($id, $save_cols)
  {
    // TODO    
    return false;
  }
  
  
  /**
   * Mark one or more contact records as deleted
   *
   * @param array  Record identifiers
   */
  function delete($ids)
  {
    // TODO
    return false;
  }


  /**
   * Execute the LDAP search based on the stored credentials
   *
   * @private
   */
  function _exec_search()
  {
    if ($this->conn && $this->filter)
    {
      $function = $this->prop['scope'] == 'sub' ? 'ldap_search' : ($this->prop['scope'] == 'base' ? 'ldap_read' : 'ldap_list');
      $this->ldap_result = $function($this->conn, $this->prop['base_dn'], $this->filter, array_values($this->fieldmap), 0, 0);
      return true;
    }
    else
      return false;
  }
  
  
  /**
   * @private
   */
  function _ldap2result($rec)
  {
    $out = array();
    
    if ($rec['dn'])
      $out[$this->primary_key] = base64_encode($rec['dn']);
    
    foreach ($this->fieldmap as $rf => $lf)
    {
      if ($rec[$lf]['count'])
        $out[$rf] = $rec[$lf][0];
    }
    
    return $out;
  }
  
  
  /**
   * @private
   */
  function _map_field($field)
  {
    return $this->fieldmap[$field];
  }
  
  
  /**
   * @static
   */
  function quote_string($str)
  {
    return strtr($str, array('*'=>'\2a', '('=>'\28', ')'=>'\29', '\\'=>'\5c'));
  }


}

?>