1 <?php
2 /*
3 * This code is part of GOsa (http://www.gosa-project.org)
4 * Copyright (C) 2003-2008 GONICUS GmbH
5 *
6 * ID: $$Id$$
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (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 */
23 /* Load required includes */
24 require_once ("../include/php_setup.inc");
25 require_once ("functions.inc");
26 require_once ("class_log.inc");
27 header("Content-type: text/html; charset=UTF-8");
30 /**
31 * Display the login page and exit().
32 *
33 */
34 function displayLogin()
35 {
36 global $smarty,$message,$config,$ssl,$error_collector, $BASE_DIR;
37 error_reporting(E_ALL | E_STRICT);
39 /* Check theme compatibility */
40 $theme= $config->get_cfg_value('theme', 'default');
41 if (file_exists("$BASE_DIR/ihtml/themes/$theme/blacklist")) {
42 $blocks= file("$BASE_DIR/ihtml/themes/$theme/blacklist");
43 foreach ($blocks as $block) {
44 if (preg_match('/'.preg_quote($block).'/', $_SERVER['HTTP_USER_AGENT'])) {
45 die(sprintf(_("Your browser (%s) is blacklisted for the current theme."), $block));
46 }
47 }
48 }
50 /* Fill template with required values */
51 $username = "";
52 if(isset($_POST["username"])){
53 $username= $_POST["username"];
54 }
55 $smarty->assign ("logo", image(get_template_path("images/logo.png")));
56 $smarty->assign ('date', gmdate("D, d M Y H:i:s"));
57 $smarty->assign ('username', $username);
58 $smarty->assign ('personal_img', get_template_path('images/login-head.png'));
59 $smarty->assign ('password_img', get_template_path('images/password.png'));
60 $smarty->assign ('directory_img', get_template_path('images/ldapserver.png'));
62 /* Some error to display? */
63 if (!isset($message)){
64 $message= "";
65 }
66 $smarty->assign ("message", $message);
68 /* Displasy SSL mode warning? */
69 if ($ssl != "" && $config->get_cfg_value('warnssl') == 'true'){
70 $smarty->assign ("ssl", sprintf(_("This session is not ecrypted. Click %s to enter an encrypted session."), "<a href=\"$ssl\">"._("here")."</a>"));
71 } else {
72 $smarty->assign ("ssl", "");
73 }
75 if(!$config->check_session_lifetime()){
76 $smarty->assign ("lifetime", _("The session lifetime configured in your gosa.conf will be overridden by php.ini settings."));
77 }else{
78 $smarty->assign ("lifetime", "");
79 }
81 /* Generate server list */
82 $servers= array();
83 if (isset($_POST['server'])){
84 $selected= validate($_POST['server']);
85 } else {
86 $selected= $config->data['MAIN']['DEFAULT'];
87 }
88 foreach ($config->data['LOCATIONS'] as $key => $ignored){
89 $servers[$key]= $key;
90 }
91 $smarty->assign ("server_options", $servers);
92 $smarty->assign ("server_id", $selected);
94 /* show login screen */
95 $smarty->assign ("PHPSESSID", session_id());
96 if (session::is_set('errors')){
97 $smarty->assign("errors", session::get('errors'));
98 }
99 if ($error_collector != ""){
100 $smarty->assign("php_errors", $error_collector."</div>");
101 } else {
102 $smarty->assign("php_errors", "");
103 }
104 $smarty->assign("msg_dialogs", msg_dialog::get_dialogs());
105 $smarty->assign("iePngWorkaround", $config->get_cfg_value("iePngWorkaround","false" ) == "true");
106 $smarty->assign("usePrototype", "false");
107 $smarty->display (get_template_path('headers.tpl'));
108 $smarty->assign("version",get_gosa_version());
109 $smarty->display(get_template_path('login.tpl'));
110 exit();
111 }
115 /*****************************************************************************
116 * M A I N *
117 *****************************************************************************/
119 /* Set error handler to own one, initialize time calculation
120 and start session. */
121 session::start();
122 session::set('errorsAlreadyPosted',array());
124 /* Destroy old session if exists.
125 Else you will get your old session back, if you not logged out correctly. */
126 if(is_array(session::get_all()) && count(session::get_all())){
127 session::destroy();
128 session::start();
129 }
131 $username= "";
133 /* Reset errors */
134 session::set('errors',"");
135 session::set('errorsAlreadyPosted',"");
136 session::set('LastError',"");
138 /* Check if we need to run setup */
139 if (!file_exists(CONFIG_DIR."/".CONFIG_FILE)){
140 header("location:setup.php");
141 exit();
142 }
144 /* Reset errors */
145 session::set('errors',"");
147 /* Check for java script */
148 if(isset($_POST['javascript']) && $_POST['javascript'] == "true") {
149 session::global_set('js',TRUE);
150 }elseif(isset($_POST['javascript'])) {
151 session::global_set('js',FALSE);
152 }
154 /* Check if gosa.conf (.CONFIG_FILE) is accessible */
155 if (!is_readable(CONFIG_DIR."/".CONFIG_FILE)){
156 msg_dialog::display(_("Configuration error"),sprintf(_("GOsa configuration %s/%s is not readable. Aborted."), CONFIG_DIR,CONFIG_FILE),FATAL_ERROR_DIALOG);
157 exit();
158 }
160 /* Parse configuration file */
161 $config= new config(CONFIG_DIR."/".CONFIG_FILE, $BASE_DIR);
162 session::global_set('DEBUGLEVEL',$config->get_cfg_value('DEBUGLEVEL'));
163 if ($_SERVER["REQUEST_METHOD"] != "POST"){
164 @DEBUG (DEBUG_CONFIG, __LINE__, __FUNCTION__, __FILE__, $config->data, "config");
165 }
167 /* Enable compressed output */
168 if ($config->get_cfg_value("sendCompressedOutput") != ""){
169 ob_start("ob_gzhandler");
170 }
172 /* Set template compile directory */
173 $smarty->compile_dir= $config->get_cfg_value("templateCompileDirectory", '/var/spool/gosa');
175 /* Check for compile directory */
176 if (!(is_dir($smarty->compile_dir) && is_writable($smarty->compile_dir))){
177 msg_dialog::display(_("Smarty error"),sprintf(_("Directory '%s' specified as compile directory is not accessible!"),
178 $smarty->compile_dir),FATAL_ERROR_DIALOG);
179 exit();
180 }
182 /* Check for old files in compile directory */
183 clean_smarty_compile_dir($smarty->compile_dir);
185 /* Language setup */
186 $lang= get_browser_language();
187 putenv("LANGUAGE=");
188 putenv("LANG=$lang");
189 setlocale(LC_ALL, $lang);
190 $GLOBALS['t_language']= $lang;
191 $GLOBALS['t_gettext_message_dir'] = $BASE_DIR.'/locale/';
193 /* Set the text domain as 'messages' */
194 $domain = 'messages';
195 bindtextdomain($domain, LOCALE_DIR);
196 textdomain($domain);
197 $smarty->assign ('nextfield', 'username');
199 if ($_SERVER["REQUEST_METHOD"] != "POST"){
200 @DEBUG (DEBUG_TRACE, __LINE__, __FUNCTION__, __FILE__, $lang, "Setting language to");
201 }
204 /* Check for SSL connection */
205 $ssl= "";
206 if (!isset($_SERVER['HTTPS']) ||
207 !stristr($_SERVER['HTTPS'], "on")) {
209 if (empty($_SERVER['REQUEST_URI'])) {
210 $ssl= "https://".$_SERVER['HTTP_HOST'].
211 $_SERVER['PATH_INFO'];
212 } else {
213 $ssl= "https://".$_SERVER['HTTP_HOST'].
214 $_SERVER['REQUEST_URI'];
215 }
216 }
218 /* If SSL is forced, just forward to the SSL enabled site */
219 if ($config->get_cfg_value("forcessl") == 'true' && $ssl != ''){
220 header ("Location: $ssl");
221 exit;
222 }
224 /* Do we have htaccess authentification enabled? */
225 $htaccess_authenticated= FALSE;
226 if ($config->get_cfg_value("htaccessAuthentication") == "true" ){
227 if (!isset($_SERVER['REMOTE_USER'])){
228 msg_dialog::display(_("Configuration error"), _("There is a problem with the authentication setup!"), FATAL_ERROR_DIALOG);
229 exit;
230 }
232 $tmp= process_htaccess($_SERVER['REMOTE_USER'], isset($_SERVER['KRB5CCNAME']));
233 $username= $tmp['username'];
234 $server= $tmp['server'];
235 if ($username == ""){
236 msg_dialog::display(_("Error"), _("Cannot find a valid user for the current authentication setup!"), FATAL_ERROR_DIALOG);
237 exit;
238 }
239 if ($server == ""){
240 msg_dialog::display(_("Error"), _("User information is not unique accross the configured LDAP trees!"), FATAL_ERROR_DIALOG);
241 exit;
242 }
244 $htaccess_authenticated= TRUE;
245 }
247 /* Got a formular answer, validate and try to log in */
248 if (($_SERVER["REQUEST_METHOD"] == "POST" && isset($_POST['login'])) || $htaccess_authenticated){
250 /* Reset error messages */
251 $message= "";
253 /* Destroy old sessions, they cause a successfull login to relog again ...*/
254 if(session::global_is_set('_LAST_PAGE_REQUEST')){
255 session::global_set('_LAST_PAGE_REQUEST',time());
256 }
258 if (!$htaccess_authenticated){
259 $server= validate($_POST["server"]);
260 }
261 $config->set_current($server);
263 /* Admin-logon and verify */
264 $ldap = $config->get_ldap_link();
265 if (is_null($ldap) || (is_int($ldap) && $ldap == 0)){
266 msg_dialog::display(_("LDAP error"), msgPool::ldaperror($ldap->get_error(), $this->dn, 0, get_class()));
267 displayLogin();
268 exit();
269 }
271 /* Check for schema file presence */
272 if ($config->get_cfg_value("schemaCheck") == "true"){
273 $recursive = ($config->get_cfg_value("ldapFollowReferrals") == "true");
274 $tls = ($config->get_cfg_value("ldapTLS") == "true");
276 if(!count($ldap->get_objectclasses())){
277 msg_dialog::display(_("LDAP error"), _("Cannot detect information about the installed LDAP schema!"), ERROR_DIALOG);
278 displayLogin();
279 exit() ;
280 }else{
281 $cfg = array();
282 $cfg['admin'] = $config->current['ADMINDN'];
283 $cfg['password'] = $config->current['ADMINPASSWORD'];
284 $cfg['connection']= $config->current['SERVER'];
285 $cfg['tls'] = $tls;
286 $str = check_schema($cfg, $config->get_cfg_value("rfc2307bis") == "true");
287 $checkarr = array();
288 foreach($str as $tr){
289 if(isset($tr['IS_MUST_HAVE']) && !$tr['STATUS']){
290 msg_dialog::display(_("LDAP error"), _("Your LDAP setup contains old schema definitions:")."<br><br><i>".$tr['MSG']."</i>", ERROR_DIALOG);
291 displayLogin();
292 exit();
293 }
294 }
295 }
296 }
298 /* Check for locking area */
299 $ldap->cat($config->get_cfg_value("config"), array("dn"));
300 $attrs= $ldap->fetch();
301 if (!count ($attrs)){
302 $ldap->cd($config->current['BASE']);
303 $ldap->create_missing_trees($config->get_cfg_value("config"));
304 }
306 /* Check for valid input */
307 $ok= true;
308 if (!$htaccess_authenticated){
309 $username= $_POST["username"];
310 if (!preg_match("/^[@A-Za-z0-9_.-]+$/", $username)){
311 $message= _("Please specify a valid username!");
312 $ok= false;
313 } elseif (mb_strlen($_POST["password"], 'UTF-8') == 0){
314 $message= _("Please specify your password!");
315 $smarty->assign ('nextfield', 'password');
316 $ok= false;
317 }
318 }
320 if ($ok) {
322 /* Login as user, initialize user ACL's */
323 if ($htaccess_authenticated){
324 $ui= ldap_login_user_htaccess($username);
325 if ($ui === NULL || !$ui){
326 msg_dialog::display(_("Authentication error"), _("Cannot retrieve user information for htaccess authentication!"), FATAL_ERROR_DIALOG);
327 exit;
328 }
329 } else {
330 $ui= ldap_login_user($username, $_POST["password"]);
331 }
332 if ($ui === NULL || !$ui){
333 $message= _("Please check the username/password combination.");
334 $smarty->assign ('nextfield', 'password');
335 session::global_set('config',$config);
336 new log("security","login","",array(),"Authentication failed for user \"$username\"");
337 } else {
338 /* Remove all locks of this user */
339 del_user_locks($ui->dn);
341 /* Save userinfo and plugin structure */
342 session::global_set('ui',$ui);
343 session::global_set('session_cnt',0);
345 /* Let GOsa trigger a new connection for each POST, save
346 config to session. */
347 $config->get_departments();
348 $config->make_idepartments();
349 session::global_set('config',$config);
351 /* Restore filter settings from cookie, if available */
352 if($config->get_cfg_value("storeFilterSettings") == "true"){
354 if(isset($_COOKIE['GOsa_Filter_Settings']) || isset($HTTP_COOKIE_VARS['GOsa_Filter_Settings'])){
356 if(isset($_COOKIE['GOsa_Filter_Settings'])){
357 $cookie_all = unserialize(base64_decode($_COOKIE['GOsa_Filter_Settings']));
358 }else{
359 $cookie_all = unserialize(base64_decode($HTTP_COOKIE_VARS['GOsa_Filter_Settings']));
360 }
361 if(isset($cookie_all[$ui->dn])){
362 $cookie = $cookie_all[$ui->dn];
363 $cookie_vars= array("MultiDialogFilters","CurrentMainBase","plug");
364 foreach($cookie_vars as $var){
365 if(isset($cookie[$var])){
366 session::global_set($var,$cookie[$var]);
367 }
368 }
369 if(isset($cookie['plug'])){
370 $plug =$cookie['plug'];
371 }
372 }
373 }
374 }
376 /* are we using accountexpiration */
377 if ($config->get_cfg_value("handleExpiredAccounts") == "true"){
378 $expired= ldap_expired_account($config, $ui->dn, $ui->username);
380 if ($expired == 1){
381 $message= _("Account locked. Please contact your system administrator!");
382 $smarty->assign ('nextfield', 'password');
383 new log("security","login","",array(),"Account for user \"$username\" has expired") ;
384 } elseif ($expired == 3){
385 $plist= new pluglist($config, $ui);
386 foreach ($plist->dirlist as $key => $value){
387 if (preg_match("/\bpassword\b/i",$value)){
388 $plug=$key;
389 new log("security","login","",array(),"User \"$username\" password forced to change") ;
390 header ("Location: main.php?plug=$plug&reset=1");
391 exit;
392 }
393 }
394 }
395 }
397 /* Not account expired or password forced change go to main page */
398 new log("security","login","",array(),"User \"$username\" logged in successfully") ;
399 $plist= new pluglist($config, $ui);
400 if(isset($plug) && isset($plist->dirlist[$plug])){
401 header ("Location: main.php?plug=".$plug."&global_check=1");
402 }else{
403 header ("Location: main.php?global_check=1");
404 }
405 exit;
406 }
407 }
408 }
410 /* Fill template with required values */
411 $smarty->assign ('date', gmdate("D, d M Y H:i:s"));
412 $smarty->assign ('username', $username);
413 $smarty->assign ('personal_img', get_template_path('images/login-head.png'));
414 $smarty->assign ('password_img', get_template_path('images/password.png'));
415 $smarty->assign ('directory_img', get_template_path('images/ldapserver.png'));
417 /* Some error to display? */
418 if (!isset($message)){
419 $message= "";
420 }
422 $smarty->assign ("message", $message);
424 /* Translation of cookie-warning. Whether to display it, is determined by JavaScript */
425 $smarty->assign ("cookies", _("Your browser has cookies disabled. Please enable cookies and reload this page before logging in!"));
427 /* Generate server list */
428 $servers= array();
429 if (isset($_POST['server'])){
430 $selected= validate($_POST['server']);
431 } else {
432 $selected= $config->data['MAIN']['DEFAULT'];
433 }
434 foreach ($config->data['LOCATIONS'] as $key => $ignored){
435 $servers[$key]= $key;
436 }
437 $smarty->assign ("server_options", $servers);
438 $smarty->assign ("server_id", $selected);
440 /* show login screen */
441 $smarty->assign ("PHPSESSID", session_id());
442 if (session::is_set('errors')){
443 $smarty->assign("errors", session::get('errors'));
444 }
445 if ($error_collector != ""){
446 $smarty->assign("php_errors", preg_replace("/%BUGBODY%/",$error_collector_mailto,$error_collector)."</div>");
447 } else {
448 $smarty->assign("php_errors", "");
449 }
451 /* Set focus to the error button if we've an error message */
452 $focus= "";
453 if (session::is_set('errors') && session::get('errors') != ""){
454 $focus= '<script language="JavaScript" type="text/javascript">';
455 $focus.= 'document.forms[0].error_accept.focus();';
456 $focus.= '</script>';
457 }
458 $smarty->assign("focus", $focus);
459 displayLogin();
461 // vim:tabstop=2:expandtab:shiftwidth=2:softtabstop=2:filetype=php:syntax:ruler:
462 ?>
464 </body>
465 </html>