ILIAS  Release_4_0_x_branch Revision 61816
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class.ilSoapAuthenticationCAS.php
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1 <?php
2 /*
3  +-----------------------------------------------------------------------------+
4  | ILIAS open source |
5  +-----------------------------------------------------------------------------+
6  | Copyright (c) 1998-2006 ILIAS open source, University of Cologne |
7  | |
8  | This program is free software; you can redistribute it and/or |
9  | modify it under the terms of the GNU General Public License |
10  | as published by the Free Software Foundation; either version 2 |
11  | of the License, or (at your option) any later version. |
12  | |
13  | This program is distributed in the hope that it will be useful, |
14  | but WITHOUT ANY WARRANTY; without even the implied warranty of |
15  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16  | GNU General Public License for more details. |
17  | |
18  | You should have received a copy of the GNU General Public License |
19  | along with this program; if not, write to the Free Software |
20  | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
21  +-----------------------------------------------------------------------------+
22 */
23 
24 
34 include_once './webservice/soap/classes/class.ilSoapAuthentication.php';
35 
36 class ilSoapAuthenticationCAS extends ilSOAPAuthentication
37 {
38  function ilSoapAuthenticationCAS()
39  {
40  parent::ilSOAPAuthentication();
41  }
42 
43  //
44  // inherited from ilSOAPAuthentication
45  //
46  /*
47  function disableSoapCheck()
48  function authenticate()
49  function validateSession()
50  function __checkSOAPEnabled()
51  */
52 
53  //
54  // inherited from ilBaseAuthentication via ilSOAPAuthentication
55  //
56  /*
57  function setClient($a_client)
58  function getClient()
59  function setUsername($a_username)
60  function getUsername()
61  function setPassword($a_password) // not needed
62  function getPassword() // not needed
63  function setSid($a_sid)
64  function getSid()
65  function getMessage()
66  function getMessageCode()
67  function __setMessage($a_message)
68  function __setMessageCode($a_message_code)
69  function setPasswordType($a_type)
70  function getPasswordType()
71  function start()
72  function logout()
73  function __buildDSN()
74  function __setSessionSaveHandler()
75  function __getAuthStatus()
76  */
77 
78  // set ticket
79  function setPT($a_pt)
80  {
81  $this->pt = $a_pt;
82  $_GET['ticket'] = $a_pt;
83  }
84  function getPT()
85  {
86  return $this->pt;
87  }
88 
89  function authenticate()
90  {
91  include_once("./Services/Init/classes/class.ilInitialisation.php");
92  $this->init = new ilInitialisation();
93  $this->init->requireCommonIncludes();
94  //$init->initSettings();
95 
96 
97  if(!$this->getClient())
98  {
99  $this->__setMessage('No client given');
100  return false;
101  }
102 
103  if(!$this->getUsername())
104  {
105  $this->__setMessage('No username given');
106  return false;
107  }
108  // Read ilias ini
109  if(!$this->__buildDSN())
110  {
111  $this->__setMessage('Error building dsn/Wrong client Id?');
112  return false;
113  }
114 
115  if(!$this->__setSessionSaveHandler())
116  {
117  return false;
118  }
119  if(!$this->__checkAgreement('cas'))
120  {
121  return false;
122  }
123 
124  if(!$this->__buildAuth())
125  {
126  return false;
127  }
128 
129  if($this->soap_check and !$this->__checkSOAPEnabled())
130  {
131  $this->__setMessage('SOAP is not enabled in ILIAS administration for this client');
132  $this->__setMessageCode('Server');
133 
134  return false;
135  }
136 
137  // check whether authentication is valid
138  //if (!$this->auth->checkCASAuth())
139  if (!phpCAS::checkAuthentication())
140  {
141  $this->__setMessage('ilSOAPAuthenticationCAS::authenticate(): No valid CAS authentication.');
142  return false;
143  }
144 
145  $this->auth->forceCASAuth();
146 
147  if ($this->getUsername() != $this->auth->getCASUser())
148  {
149  $this->__setMessage('ilSOAPAuthenticationCAS::authenticate(): SOAP CAS user does not match to ticket user.');
150  return false;
151  }
152 
153  include_once('./Services/User/classes/class.ilObjUser.php');
154  $local_user = ilObjUser::_checkExternalAuthAccount("cas", $this->auth->getCASUser());
155  if ($local_user == "")
156  {
157  $this->__setMessage('ilSOAPAuthenticationCAS::authenticate(): SOAP CAS user authenticated but not existing in ILIAS user database.');
158  return false;
159  }
160 
161  /*
162  $init->initIliasIniFile();
163  $init->initSettings();
164  $ilias =& new ILIAS();
165  $GLOBALS['ilias'] =& $ilias;*/
166 
167  $this->auth->start();
168 
169  if(!$this->auth->getAuth())
170  {
171  $this->__getAuthStatus();
172 
173  return false;
174  }
175 
176  $this->setSid(session_id());
177 
178  return true;
179  }
180 
181 
182  function validateSession()
183  {
184  if(!$this->getClient())
185  {
186  $this->__setMessage('No client given');
187  return false;
188  }
189  if(!$this->getSid())
190  {
191  $this->__setMessage('No session id given');
192  return false;
193  }
194 
195  if(!$this->__buildDSN())
196  {
197  $this->__setMessage('Error building dsn');
198  return false;
199  }
200  if(!$this->__setSessionSaveHandler())
201  {
202  return false;
203  }
204  if(!$this->__buildAuth())
205  {
206  return false;
207  }
208  if($this->soap_check and !$this->__checkSOAPEnabled())
209  {
210  $this->__setMessage('SOAP is not enabled in ILIAS administration for this client');
211  $this->__setMessageCode('Server');
212 
213  return false;
214  }
215 
216  // check whether authentication is valid
217  if (!$this->auth->checkCASAuth())
218  {
219  $this->__setMessage('ilSOAPAuthenticationCAS::authenticate(): No valid CAS authentication.');
220  return false;
221  }
222  $this->auth->forceCASAuth();
223 
224  $this->auth->start();
225  if(!$this->auth->getAuth())
226  {
227  $this->__setMessage('Session not valid');
228 
229  return false;
230  }
231 
232  return true;
233  }
234 
235  function __buildAuth()
236  {
237 
238  if (!is_object($this->db))
239  {
240  require_once("./Services/Database/classes/class.ilDBWrapperFactory.php");
241  $ilDB = ilDBWrapperFactory::getWrapper();
242  $ilDB->initFromIniFile();
243  $ilDB->connect();
244  $this->db = $ilDB;
245  }
246 
247  $GLOBALS["ilDB"] = $this->db;
248  $this->init->initSettings();
249 
250  $this->init->buildHTTPPath();
251  include_once './Services/Administration/classes/class.ilSetting.php';
252  $set = new ilSetting();
253 
254  /*$query = "SELECT * FROM sett ings WHERE ".
255  " keyword = ".$this->db->quote("cas_server")." OR ".
256  " keyword = ".$this->db->quote("cas_port")." OR ".
257  " keyword = ".$this->db->quote("cas_uri");
258  $res = $this->db->query($query);
259  $cas_set = array();
260  while ($rec = $res->fetchRow(DB_FETCHMODE_ASSOC))
261  {
262  $cas_set[$rec["keyword"]] = $rec["value"];
263  }*/
264  $cas_set["cas_server"] = $set->get("cas_server");
265  $cas_set["cas_port"] = $set->get("cas_port");
266  $cas_set["cas_uri"] = $set->get("cas_uri");
267 
268  $auth_params = array(
269  "server_version" => CAS_VERSION_2_0,
270  "server_hostname" => $cas_set["cas_server"],
271  "server_port" => $cas_set["cas_port"],
272  "server_uri" => $cas_set["cas_uri"]);
273 
274  include_once("Services/CAS/classes/class.ilCASAuth.php");
275  $this->auth = new ilCASAuth($auth_params);
276 
277  // HTTP path will return full path to server.php directory
278  phpCAS::setFixedServiceURL(ILIAS_HTTP_PATH."/webservice/soap/server.php");
279 
280  return true;
281  }
282 }
283 ?>