Fixed bug #15188: Remove default greyed out effect for CEs (Thanks to Steffen Gebert)
[Packages/TYPO3.CMS.git] / t3lib / class.t3lib_beuserauth.php
1 <?php
2 /***************************************************************
3 * Copyright notice
4 *
5 * (c) 1999-2010 Kasper Skaarhoj (kasperYYYY@typo3.com)
6 * All rights reserved
7 *
8 * This script is part of the TYPO3 project. The TYPO3 project is
9 * free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * The GNU General Public License can be found at
15 * http://www.gnu.org/copyleft/gpl.html.
16 * A copy is found in the textfile GPL.txt and important notices to the license
17 * from the author is found in LICENSE.txt distributed with these scripts.
18 *
19 *
20 * This script is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
24 *
25 * This copyright notice MUST APPEAR in all copies of the script!
26 ***************************************************************/
27 /**
28 * Contains class for TYPO3 backend user authentication
29 *
30 * $Id$
31 * Revised for TYPO3 3.6 July/2003 by Kasper Skaarhoj
32 *
33 * @author Kasper Skaarhoj <kasperYYYY@typo3.com>
34 * @internal
35 */
36 /**
37 * [CLASS/FUNCTION INDEX of SCRIPT]
38 *
39 *
40 *
41 * 76: class t3lib_beUserAuth extends t3lib_userAuthGroup
42 * 150: function trackBeUser($flag)
43 * 168: function checkLockToIP()
44 * 188: function backendCheckLogin()
45 * 216: function checkCLIuser()
46 * 240: function backendSetUC()
47 * 278: function overrideUC()
48 * 288: function resetUC()
49 * 301: function emailAtLogin()
50 * 353: function veriCode()
51 *
52 * TOTAL FUNCTIONS: 9
53 * (This index is automatically created/updated by the extension "extdeveval")
54 *
55 */
56
57
58
59
60
61
62
63
64
65
66 /**
67 * TYPO3 user authentication, backend
68 * Could technically have been the same class as t3lib_userauthgroup since these two are always used together and only together.
69 * t3lib_userauthgroup contains most of the functions used for checking permissions, authenticating users, setting up the user etc. This class is most interesting in terms of an API for user from outside.
70 * This class contains the configuration of the database fields used plus some functions for the authentication process of backend users.
71 *
72 * @author Kasper Skaarhoj <kasperYYYY@typo3.com>
73 * @package TYPO3
74 * @subpackage t3lib
75 */
76 class t3lib_beUserAuth extends t3lib_userAuthGroup {
77 var $session_table = 'be_sessions'; // Table to use for session data.
78 var $name = 'be_typo_user'; // Session/Cookie name
79
80 var $user_table = 'be_users'; // Table in database with userdata
81 var $username_column = 'username'; // Column for login-name
82 var $userident_column = 'password'; // Column for password
83 var $userid_column = 'uid'; // Column for user-id
84 var $lastLogin_column = 'lastlogin';
85 var $notifyHeader = 'From: TYPO3 Login notify <no_reply@no_reply.no_reply>';
86
87 var $enablecolumns = Array (
88 'rootLevel' => 1,
89 'deleted' => 'deleted',
90 'disabled' => 'disable',
91 'starttime' => 'starttime',
92 'endtime' => 'endtime'
93 );
94
95 var $formfield_uname = 'username'; // formfield with login-name
96 var $formfield_uident = 'userident'; // formfield with password
97 var $formfield_chalvalue = 'challenge'; // formfield with a unique value which is used to encrypt the password and username
98 var $formfield_status = 'login_status'; // formfield with status: *'login', 'logout'
99
100 var $writeStdLog = 1; // Decides if the writelog() function is called at login and logout
101 var $writeAttemptLog = 1; // If the writelog() functions is called if a login-attempt has be tried without success
102
103 var $auth_include = ''; // this is the name of the include-file containing the login form. If not set, login CAN be anonymous. If set login IS needed.
104
105 var $auth_timeout_field = 6000; // if > 0 : session-timeout in seconds. if false/<0 : no timeout. if string: The string is fieldname from the usertable where the timeout can be found.
106 var $lifetime = 0; // 0 = Session-cookies. If session-cookies, the browser will stop session when the browser is closed. Else it keeps the session for $lifetime seconds.
107 var $challengeStoredInCookie = TRUE;
108
109
110 // User Config:
111 var $uc;
112
113 // User Config Default values:
114 // The array may contain other fields for configuration. For this, see "setup" extension and "TSConfig" document (User TSconfig, "setup.[xxx]....")
115 /*
116 Reserved keys for other storage of session data:
117 moduleData
118 moduleSessionID
119 */
120 var $uc_default = Array (
121 'interfaceSetup' => '', // serialized content that is used to store interface pane and menu positions. Set by the logout.php-script
122 'moduleData' => Array(), // user-data for the modules
123 'thumbnailsByDefault' => 0,
124 'emailMeAtLogin' => 0,
125 'condensedMode' => 0,
126 'noMenuMode' => 0,
127 'startModule' => 'help_aboutmodules',
128 'hideSubmoduleIcons' => 0,
129 'helpText' => 1,
130 'titleLen' => 30,
131 'edit_wideDocument' => '0',
132 'edit_showFieldHelp' => 'icon',
133 'edit_RTE' => '1',
134 'edit_docModuleUpload' => '1',
135 'enableFlashUploader' => '1',
136 'disableCMlayers' => 0,
137 'navFrameWidth' => '', // Default is 245 pixels
138 'navFrameResizable' => 0,
139 'resizeTextareas' => 1,
140 'resizeTextareas_MaxHeight' => 300,
141 'resizeTextareas_Flexible' => 1,
142 );
143
144
145 /**
146 * Sets the security level for the Backend login
147 *
148 * @return void
149 */
150 function start() {
151 $securityLevel = trim($GLOBALS['TYPO3_CONF_VARS']['BE']['loginSecurityLevel']);
152 $this->security_level = $securityLevel ? $securityLevel : 'superchallenged';
153
154 parent::start();
155 }
156
157 /**
158 * If flag is set and the extensions 'beuser_tracking' is loaded, this will insert a table row with the REQUEST_URI of current script - thus tracking the scripts the backend users uses...
159 * This function works ONLY with the "beuser_tracking" extension and is deprecated since it does nothing useful.
160 *
161 * @param boolean Activate insertion of the URL.
162 * @return void
163 * @deprecated since TYPO3 3.6, this function will be removed in TYPO3 4.5.
164 */
165 function trackBeUser($flag) {
166 t3lib_div::logDeprecatedFunction();
167
168 if ($flag && t3lib_extMgm::isLoaded('beuser_tracking')) {
169 $insertFields = array(
170 'userid' => intval($this->user['uid']),
171 'tstamp' => $GLOBALS['EXEC_TIME'],
172 'script' => t3lib_div::getIndpEnv('REQUEST_URI')
173 );
174
175 $GLOBALS['TYPO3_DB']->exec_INSERTquery('sys_trackbeuser', $insertFields);
176 }
177 }
178
179 /**
180 * If TYPO3_CONF_VARS['BE']['enabledBeUserIPLock'] is enabled and an IP-list is found in the User TSconfig objString "options.lockToIP", then make an IP comparison with REMOTE_ADDR and return the outcome (true/false)
181 *
182 * @return boolean True, if IP address validates OK (or no check is done at all)
183 * @access private
184 */
185 function checkLockToIP() {
186 global $TYPO3_CONF_VARS;
187 $out = 1;
188 if ($TYPO3_CONF_VARS['BE']['enabledBeUserIPLock']) {
189 $IPList = $this->getTSConfigVal('options.lockToIP');
190 if (trim($IPList)) {
191 $baseIP = t3lib_div::getIndpEnv('REMOTE_ADDR');
192 $out = t3lib_div::cmpIP($baseIP, $IPList);
193 }
194 }
195 return $out;
196 }
197
198 /**
199 * Check if user is logged in and if so, call ->fetchGroupData() to load group information and access lists of all kind, further check IP, set the ->uc array and send login-notification email if required.
200 * If no user is logged in the default behaviour is to exit with an error message, but this will happen ONLY if the constant TYPO3_PROCEED_IF_NO_USER is set true.
201 * This function is called right after ->start() in fx. init.php
202 *
203 * @return void
204 */
205 function backendCheckLogin() {
206 if (!$this->user['uid']) {
207 if (!defined('TYPO3_PROCEED_IF_NO_USER') || !TYPO3_PROCEED_IF_NO_USER) {
208 t3lib_utility_Http::redirect($GLOBALS['BACK_PATH']);
209 }
210 } else { // ...and if that's the case, call these functions
211 $this->fetchGroupData(); // The groups are fetched and ready for permission checking in this initialization. Tables.php must be read before this because stuff like the modules has impact in this
212 if ($this->checkLockToIP()) {
213 if ($this->isUserAllowedToLogin()) {
214 $this->backendSetUC(); // Setting the UC array. It's needed with fetchGroupData first, due to default/overriding of values.
215 $this->emailAtLogin(); // email at login - if option set.
216 } else {
217 t3lib_BEfunc::typo3PrintError ('Login-error','TYPO3 is in maintenance mode at the moment. Only administrators are allowed access.',0);
218 exit;
219 }
220 } else {
221 t3lib_BEfunc::typo3PrintError ('Login-error','IP locking prevented you from being authorized. Can\'t proceed, sorry.',0);
222 exit;
223 }
224 }
225 }
226
227 /**
228 * If the backend script is in CLI mode, it will try to load a backend user named by the CLI module name (in lowercase)
229 *
230 * @return boolean Returns true if a CLI user was loaded, otherwise false!
231 */
232 function checkCLIuser() {
233 // First, check if cliMode is enabled:
234 if (TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI) {
235 if (!$this->user['uid']) {
236 if (substr($GLOBALS['MCONF']['name'],0,5)=='_CLI_') {
237 $userName = strtolower($GLOBALS['MCONF']['name']);
238 $this->setBeUserByName($userName);
239 if ($this->user['uid']) {
240 if (!$this->isAdmin()) {
241 return TRUE;
242 } else die('ERROR: CLI backend user "'.$userName.'" was ADMIN which is not allowed!'.LF.LF);
243 } else die('ERROR: No backend user named "'.$userName.'" was found! [Database: '.TYPO3_db.']'.LF.LF);
244 } else die('ERROR: Module name, "'.$GLOBALS['MCONF']['name'].'", was not prefixed with "_CLI_"'.LF.LF);
245 } else die('ERROR: Another user was already loaded which is impossible in CLI mode!'.LF.LF);
246 }
247 }
248
249 /**
250 * Initialize the internal ->uc array for the backend user
251 * Will make the overrides if necessary, and write the UC back to the be_users record if changes has happend
252 *
253 * @return void
254 * @internal
255 */
256 function backendSetUC() {
257 global $TYPO3_CONF_VARS;
258
259 // UC - user configuration is a serialized array inside the userobject
260 $temp_theSavedUC=unserialize($this->user['uc']); // if there is a saved uc we implement that instead of the default one.
261 if (is_array($temp_theSavedUC)) {
262 $this->unpack_uc($temp_theSavedUC);
263 }
264 // Setting defaults if uc is empty
265 if (!is_array($this->uc)) {
266 $this->uc = array_merge(
267 $this->uc_default,
268 (array) $TYPO3_CONF_VARS['BE']['defaultUC'],
269 t3lib_div::removeDotsFromTS((array) $this->getTSConfigProp('setup.default'))
270 );
271 $this->overrideUC();
272 $U=1;
273 }
274 // If TSconfig is updated, update the defaultUC.
275 if ($this->userTSUpdated) {
276 $this->overrideUC();
277 $U=1;
278 }
279 // Setting default lang from be_user record.
280 if (!isset($this->uc['lang'])) {
281 $this->uc['lang']=$this->user['lang'];
282 $U=1;
283 }
284 // Setting the time of the first login:
285 if (!isset($this->uc['firstLoginTimeStamp'])) {
286 $this->uc['firstLoginTimeStamp'] = $GLOBALS['EXEC_TIME'];
287 $U = TRUE;
288 }
289
290 // Saving if updated.
291 if ($U) {
292 $this->writeUC(); // Method from the t3lib_userauth class.
293 }
294 }
295
296 /**
297 * Override: Call this function every time the uc is updated.
298 * That is 1) by reverting to default values, 2) in the setup-module, 3) userTS changes (userauthgroup)
299 *
300 * @return void
301 * @internal
302 */
303 function overrideUC() {
304 $this->uc = array_merge((array)$this->uc, (array)$this->getTSConfigProp('setup.override')); // Candidate for t3lib_div::array_merge() if integer-keys will some day make trouble...
305 }
306
307 /**
308 * Clears the user[uc] and ->uc to blank strings. Then calls ->backendSetUC() to fill it again with reset contents
309 *
310 * @return void
311 * @internal
312 */
313 function resetUC() {
314 $this->user['uc']='';
315 $this->uc='';
316 $this->backendSetUC();
317 }
318
319 /**
320 * Will send an email notification to warning_email_address/the login users email address when a login session is just started.
321 * Depends on various parameters whether mails are send and to whom.
322 *
323 * @return void
324 * @access private
325 */
326 function emailAtLogin() {
327 if ($this->loginSessionStarted) {
328 // Send notify-mail
329 $subject = 'At "'.$GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'].'"'.
330 ' from '.t3lib_div::getIndpEnv('REMOTE_ADDR').
331 (t3lib_div::getIndpEnv('REMOTE_HOST') ? ' ('.t3lib_div::getIndpEnv('REMOTE_HOST').')' : '');
332 $msg = sprintf ('User "%s" logged in from %s (%s) at "%s" (%s)',
333 $this->user['username'],
334 t3lib_div::getIndpEnv('REMOTE_ADDR'),
335 t3lib_div::getIndpEnv('REMOTE_HOST'),
336 $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'],
337 t3lib_div::getIndpEnv('HTTP_HOST')
338 );
339
340 // Warning email address
341 if ($GLOBALS['TYPO3_CONF_VARS']['BE']['warning_email_addr']) {
342 $warn=0;
343 $prefix='';
344 if (intval($GLOBALS['TYPO3_CONF_VARS']['BE']['warning_mode']) & 1) { // first bit: All logins
345 $warn=1;
346 $prefix= $this->isAdmin() ? '[AdminLoginWarning]' : '[LoginWarning]';
347 }
348 if ($this->isAdmin() && (intval($GLOBALS['TYPO3_CONF_VARS']['BE']['warning_mode']) & 2)) { // second bit: Only admin-logins
349 $warn=1;
350 $prefix='[AdminLoginWarning]';
351 }
352 if ($warn) {
353 t3lib_utility_Mail::mail($GLOBALS['TYPO3_CONF_VARS']['BE']['warning_email_addr'],
354 $prefix.' '.$subject,
355 $msg,
356 $this->notifyHeader
357 );
358 }
359 }
360
361 // If An email should be sent to the current user, do that:
362 if ($this->uc['emailMeAtLogin'] && strstr($this->user['email'],'@')) {
363 t3lib_utility_Mail::mail($this->user['email'],
364 $subject,
365 $msg,
366 $this->notifyHeader
367 );
368 }
369 }
370 }
371
372 /**
373 * Determines whether a backend user is allowed to access the backend.
374 *
375 * The conditions are:
376 * + backend user is a regular user and adminOnly is not defined
377 * + backend user is an admin user
378 * + backend user is used in CLI context and adminOnly is explicitely set to "2"
379 *
380 * @return boolean Whether a backend user is allowed to access the backend
381 */
382 protected function isUserAllowedToLogin() {
383 $isUserAllowedToLogin = FALSE;
384 $adminOnlyMode = $GLOBALS['TYPO3_CONF_VARS']['BE']['adminOnly'];
385
386 // Backend user is allowed if adminOnly is not set or user is an admin:
387 if (!$adminOnlyMode || $this->isAdmin()) {
388 $isUserAllowedToLogin = TRUE;
389 // Backend user is allowed if adminOnly is set to 2 (CLI) and a CLI process is running:
390 } elseif ($adminOnlyMode == 2 && (TYPO3_REQUESTTYPE & TYPO3_REQUESTTYPE_CLI)) {
391 $isUserAllowedToLogin = TRUE;
392 }
393
394 return $isUserAllowedToLogin;
395 }
396 }
397
398
399
400
401 if (defined('TYPO3_MODE') && $TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/class.t3lib_beuserauth.php']) {
402 include_once($TYPO3_CONF_VARS[TYPO3_MODE]['XCLASS']['t3lib/class.t3lib_beuserauth.php']);
403 }
404
405 ?>