Fixed bug #17305: Login/ Logout was not possible after introducing the locking in...
[Packages/TYPO3.CMS.git] / typo3 / index.php
1 <?php
2 /***************************************************************
3 * Copyright notice
4 *
5 * (c) 1999-2011 Kasper Skårhøj (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 * Login-screen of TYPO3.
29 *
30 * $Id$
31 * Revised for TYPO3 3.6 December/2003 by Kasper Skårhøj
32 * XHTML compliant
33 *
34 * @author Kasper Skårhøj <kasperYYYY@typo3.com>
35 */
36 /**
37 * [CLASS/FUNCTION INDEX of SCRIPT]
38 *
39 *
40 *
41 * 87: class SC_index
42 * 120: function init()
43 * 159: function main()
44 * 268: function printContent()
45 *
46 * SECTION: Various functions
47 * 292: function makeLoginForm()
48 * 337: function makeLogoutForm()
49 * 379: function wrapLoginForm($content)
50 * 438: function checkRedirect()
51 * 495: function makeInterfaceSelectorBox()
52 * 549: function makeCopyrightNotice()
53 * 582: function makeLoginBoxImage()
54 * 622: function makeLoginNews()
55 *
56 * TOTAL FUNCTIONS: 11
57 * (This index is automatically created/updated by the extension "extdeveval")
58 *
59 */
60
61
62 define('TYPO3_PROCEED_IF_NO_USER', 1);
63 require('init.php');
64 require('template.php');
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80 /**
81 * Script Class for rendering the login form
82 *
83 * @author Kasper Skårhøj <kasperYYYY@typo3.com>
84 * @package TYPO3
85 * @subpackage core
86 */
87 class SC_index {
88
89 // Internal, GPvars:
90 var $redirect_url; // GPvar: redirect_url; The URL to redirect to after login.
91 var $GPinterface; // GPvar: Defines which interface to load (from interface selector)
92 var $u; // GPvar: preset username
93 var $p; // GPvar: preset password
94 var $L; // GPvar: If "L" is "OUT", then any logged in used is logged out. If redirect_url is given, we redirect to it
95 var $loginRefresh; // Login-refresh boolean; The backend will call this script with this value set when the login is close to being expired and the form needs to be redrawn.
96 var $commandLI; // Value of forms submit button for login.
97
98 // Internal, static:
99 var $redirectToURL; // Set to the redirect URL of the form (may be redirect_url or "backend.php")
100
101 // Internal, dynamic:
102 var $content; // Content accumulation
103
104 var $interfaceSelector; // A selector box for selecting value for "interface" may be rendered into this variable
105 var $interfaceSelector_jump; // A selector box for selecting value for "interface" may be rendered into this variable - this will have an onchange action which will redirect the user to the selected interface right away
106 var $interfaceSelector_hidden; // A hidden field, if the interface is not set.
107 var $addFields_hidden = ''; // Additional hidden fields to be placed at the login form
108
109 // sets the level of security. *'normal' = clear-text. 'challenged' = hashed password/username from form in $formfield_uident. 'superchallenged' = hashed password hashed again with username.
110 var $loginSecurityLevel = 'superchallenged';
111
112
113
114
115 /**
116 * Initialize the login box. Will also react on a &L=OUT flag and exit.
117 *
118 * @return void
119 */
120 function init() {
121 // We need a PHP session session for most login levels
122 session_start();
123
124 $this->redirect_url = t3lib_div::sanitizeLocalUrl(t3lib_div::_GP('redirect_url'));
125 $this->GPinterface = t3lib_div::_GP('interface');
126
127 // Grabbing preset username and password, for security reasons this feature only works if SSL is used
128 if (t3lib_div::getIndpEnv('TYPO3_SSL')) {
129 $this->u = t3lib_div::_GP('u');
130 $this->p = t3lib_div::_GP('p');
131 }
132
133 // If "L" is "OUT", then any logged in is logged out. If redirect_url is given, we redirect to it
134 $this->L = t3lib_div::_GP('L');
135
136 // Login
137 $this->loginRefresh = t3lib_div::_GP('loginRefresh');
138
139 // Value of "Login" button. If set, the login button was pressed.
140 $this->commandLI = t3lib_div::_GP('commandLI');
141
142 // sets the level of security from conf vars
143 if ($GLOBALS['TYPO3_CONF_VARS']['BE']['loginSecurityLevel']) {
144 $this->loginSecurityLevel = $GLOBALS['TYPO3_CONF_VARS']['BE']['loginSecurityLevel'];
145 }
146
147 // try to get the preferred browser language
148 $preferredBrowserLanguage = $GLOBALS['LANG']->csConvObj->getPreferredClientLanguage(t3lib_div::getIndpEnv('HTTP_ACCEPT_LANGUAGE'));
149 // if we found a $preferredBrowserLanguage and it is not the default language and no be_user is logged in
150 // initialize $GLOBALS['LANG'] again with $preferredBrowserLanguage
151 if ($preferredBrowserLanguage != 'default' && !$GLOBALS['BE_USER']->user['uid']) {
152 $GLOBALS['LANG']->init($preferredBrowserLanguage);
153 }
154 $GLOBALS['LANG']->includeLLFile('EXT:lang/locallang_login.xml');
155
156 // check if labels from $GLOBALS['TYPO3_CONF_VARS']['BE']['loginLabels'] were changed,
157 // and merge them to $GLOBALS['LOCAL_LANG'] if needed
158 $this->mergeOldLoginLabels();
159
160 // Setting the redirect URL to "backend.php" if no alternative input is given
161 $this->redirectToURL = ($this->redirect_url ? $this->redirect_url : 'backend.php');
162
163
164 // Do a logout if the command is set
165 if ($this->L == 'OUT' && is_object($GLOBALS['BE_USER'])) {
166 $GLOBALS['BE_USER']->logoff();
167 if ($this->redirect_url) {
168 t3lib_utility_Http::redirect($this->redirect_url);
169 }
170 exit;
171 }
172 }
173
174
175 /**
176 * Main function - creating the login/logout form
177 *
178 * @return void
179 */
180 function main() {
181 global $TBE_TEMPLATE, $TYPO3_CONF_VARS, $BE_USER;
182
183 // Initialize template object:
184 $TBE_TEMPLATE->bodyTagAdditions = ' onload="startUp();"';
185 $TBE_TEMPLATE->moduleTemplate = $TBE_TEMPLATE->getHtmlTemplate('templates/login.html');
186
187 $TBE_TEMPLATE->getPageRenderer()->loadExtJS();
188 $TBE_TEMPLATE->getPageRenderer()->loadPrototype();
189 $TBE_TEMPLATE->getPageRenderer()->loadScriptaculous();
190
191 // Set JavaScript for creating a MD5 hash of the password:
192 $TBE_TEMPLATE->JScode.= $this->getJScode();
193
194 // Checking, if we should make a redirect.
195 // Might set JavaScript in the header to close window.
196 $this->checkRedirect();
197
198 // Initialize interface selectors:
199 $this->makeInterfaceSelectorBox();
200
201 // Creating form based on whether there is a login or not:
202 if (!$BE_USER->user['uid']) {
203 $TBE_TEMPLATE->form = $this->startForm();
204 $loginForm = $this->makeLoginForm();
205 } else {
206 $TBE_TEMPLATE->form = '
207 <form action="index.php" method="post" name="loginform">
208 <input type="hidden" name="login_status" value="logout" />
209 ';
210 $loginForm = $this->makeLogoutForm();
211 }
212
213 // Starting page:
214 $this->content .= $TBE_TEMPLATE->startPage('TYPO3 Login: ' . htmlspecialchars($TYPO3_CONF_VARS['SYS']['sitename']), FALSE);
215
216 // Add login form:
217 $this->content.=$this->wrapLoginForm($loginForm);
218
219 $this->content.= $TBE_TEMPLATE->endPage();
220 }
221
222 /**
223 * Outputting the accumulated content to screen
224 *
225 * @return void
226 */
227 function printContent() {
228 echo $this->content;
229 }
230
231 /*****************************
232 *
233 * Various functions
234 *
235 ******************************/
236
237 /**
238 * Creates the login form
239 * This is drawn when NO login exists.
240 *
241 * @return string HTML output
242 */
243 function makeLoginForm() {
244 $content = t3lib_parsehtml::getSubpart($GLOBALS['TBE_TEMPLATE']->moduleTemplate, '###LOGIN_FORM###');
245 $markers = array(
246 'VALUE_USERNAME' => htmlspecialchars($this->u),
247 'VALUE_PASSWORD' => htmlspecialchars($this->p),
248 'VALUE_SUBMIT' => $GLOBALS['LANG']->getLL('labels.submitLogin', true),
249 );
250
251 // show an error message if the login command was successful already, otherwise remove the subpart
252 if (!$this->commandLI) {
253 $content = t3lib_parsehtml::substituteSubpart($content, '###LOGIN_ERROR###', '');
254 } else {
255 $markers['ERROR_MESSAGE'] = $GLOBALS['LANG']->getLL('error.login', true);
256 $markers['ERROR_LOGIN_TITLE'] = $GLOBALS['LANG']->getLL('error.login.title', true);
257 $markers['ERROR_LOGIN_DESCRIPTION'] = $GLOBALS['LANG']->getLL('error.login.description', true);
258 }
259
260
261 // remove the interface selector markers if it's not available
262 if (!($this->interfaceSelector && !$this->loginRefresh)) {
263 $content = t3lib_parsehtml::substituteSubpart($content, '###INTERFACE_SELECTOR###', '');
264 } else {
265 $markers['LABEL_INTERFACE'] = $GLOBALS['LANG']->getLL('labels.interface', true);
266 $markers['VALUE_INTERFACE'] = $this->interfaceSelector;
267 }
268
269 return t3lib_parsehtml::substituteMarkerArray($content, $markers, '###|###');
270 }
271
272
273 /**
274 * Creates the logout form
275 * This is drawn if a user login already exists.
276 *
277 * @return string HTML output
278 */
279 function makeLogoutForm() {
280 $content = t3lib_parsehtml::getSubpart($GLOBALS['TBE_TEMPLATE']->moduleTemplate, '###LOGOUT_FORM###');
281 $markers = array(
282 'LABEL_USERNAME' => $GLOBALS['LANG']->getLL('labels.username', true),
283 'VALUE_USERNAME' => htmlspecialchars($GLOBALS['BE_USER']->user['username']),
284 'VALUE_SUBMIT' => $GLOBALS['LANG']->getLL('labels.submitLogout', true),
285 );
286
287 // remove the interface selector markers if it's not available
288 if (!$this->interfaceSelector_jump) {
289 $content = t3lib_parsehtml::substituteSubpart($content, '###INTERFACE_SELECTOR###', '');
290 } else {
291 $markers['LABEL_INTERFACE'] = $GLOBALS['LANG']->getLL('labels.interface', true);
292 $markers['VALUE_INTERFACE'] = $this->interfaceSelector_jump;
293 }
294
295 return t3lib_parsehtml::substituteMarkerArray($content, $markers, '###|###');
296 }
297
298
299 /**
300 * Wrapping the login form table in another set of tables etc:
301 *
302 * @param string HTML content for the login form
303 * @return string The HTML for the page.
304 */
305 function wrapLoginForm($content) {
306 $mainContent = t3lib_parsehtml::getSubpart($GLOBALS['TBE_TEMPLATE']->moduleTemplate, '###PAGE###');
307
308 if ($GLOBALS['TBE_STYLES']['logo_login']) {
309 $logo = '<img src="'.htmlspecialchars($GLOBALS['BACK_PATH'] . $GLOBALS['TBE_STYLES']['logo_login']) . '" alt="" />';
310 } else {
311 $logo = '<img'.t3lib_iconWorks::skinImg($GLOBALS['BACK_PATH'],'gfx/typo3logo.gif','width="123" height="34"').' alt="" />';
312 }
313
314 $markers = array(
315 'LOGO' => $logo,
316 'LOGINBOX_IMAGE' => $this->makeLoginBoxImage(),
317 'FORM' => $content,
318 'NEWS' => $this->makeLoginNews(),
319 'COPYRIGHT' => $this->makeCopyrightNotice(),
320 'CSS_ERRORCLASS' => ($this->commandLI ? ' class="error"' : ''),
321 'CSS_OPENIDCLASS' => 't3-login-openid-' . (t3lib_extMgm::isLoaded('openid') ? 'enabled' : 'disabled'),
322
323 // the labels will be replaced later on, thus the other parts above
324 // can use these markers as well and it will be replaced
325 'HEADLINE' => $GLOBALS['LANG']->getLL('headline', true),
326 'INFO_ABOUT' => $GLOBALS['LANG']->getLL('info.about', true),
327 'INFO_RELOAD' => $GLOBALS['LANG']->getLL('info.reset', true),
328 'INFO' => $GLOBALS['LANG']->getLL('info.cookies_and_js', true),
329 'ERROR_JAVASCRIPT' => $GLOBALS['LANG']->getLL('error.javascript', true),
330 'ERROR_COOKIES' => $GLOBALS['LANG']->getLL('error.cookies', true),
331 'ERROR_COOKIES_IGNORE' => $GLOBALS['LANG']->getLL('error.cookies_ignore', true),
332 'ERROR_CAPSLOCK' => $GLOBALS['LANG']->getLL('error.capslock', true),
333 'ERROR_FURTHERHELP' => $GLOBALS['LANG']->getLL('error.furtherInformation', true),
334 'LABEL_DONATELINK' => $GLOBALS['LANG']->getLL('labels.donate', true),
335 'LABEL_USERNAME' => $GLOBALS['LANG']->getLL('labels.username', true),
336 'LABEL_OPENID' => $GLOBALS['LANG']->getLL('labels.openId', true),
337 'LABEL_PASSWORD' => $GLOBALS['LANG']->getLL('labels.password', true),
338 'LABEL_WHATISOPENID' => $GLOBALS['LANG']->getLL('labels.whatIsOpenId', true),
339 'LABEL_SWITCHOPENID' => $GLOBALS['LANG']->getLL('labels.switchToOpenId', true),
340 'LABEL_SWITCHDEFAULT' => $GLOBALS['LANG']->getLL('labels.switchToDefault', true),
341 'CLEAR' => $GLOBALS['LANG']->getLL('clear', true),
342 'LOGIN_PROCESS' => $GLOBALS['LANG']->getLL('login_process', true),
343 'SITELINK' => '<a href="/">###SITENAME###</a>',
344
345 // global variables will now be replaced (at last)
346 'SITENAME' => htmlspecialchars($GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'])
347 );
348 return t3lib_parsehtml::substituteMarkerArray($mainContent, $markers, '###|###');
349 }
350
351
352 /**
353 * Checking, if we should perform some sort of redirection OR closing of windows.
354 *
355 * @return void
356 */
357 function checkRedirect() {
358 global $BE_USER,$TBE_TEMPLATE;
359
360 // Do redirect:
361 // If a user is logged in AND a) if either the login is just done (commandLI) or b) a loginRefresh is done or c) the interface-selector is NOT enabled (If it is on the other hand, it should not just load an interface, because people has to choose then...)
362 if ($BE_USER->user['uid'] && ($this->commandLI || $this->loginRefresh || !$this->interfaceSelector)) {
363
364 // If no cookie has been set previously we tell people that this is a problem. This assumes that a cookie-setting script (like this one) has been hit at least once prior to this instance.
365 if (!$_COOKIE[$BE_USER->name]) {
366 if ($this->commandLI=='setCookie') {
367 // we tried it a second time but still no cookie
368 // 26/4 2005: This does not work anymore, because the saving of challenge values in $_SESSION means the system will act as if the password was wrong.
369 throw new RuntimeException('Login-error: Yeah, that\'s a classic. No cookies, no TYPO3.<br /><br />Please accept cookies from TYPO3 - otherwise you\'ll not be able to use the system.');
370 } else {
371 // try it once again - that might be needed for auto login
372 $this->redirectToURL = 'index.php?commandLI=setCookie';
373 }
374 }
375
376 if (($redirectToURL = (string)$BE_USER->getTSConfigVal('auth.BE.redirectToURL'))) {
377 $this->redirectToURL = $redirectToURL;
378 $this->GPinterface = '';
379 }
380
381 // store interface
382 $BE_USER->uc['interfaceSetup'] = $this->GPinterface;
383 $BE_USER->writeUC();
384
385 // Based on specific setting of interface we set the redirect script:
386 switch ($this->GPinterface) {
387 case 'backend':
388 case 'backend_old':
389 $this->redirectToURL = 'backend.php';
390 break;
391 case 'frontend':
392 $this->redirectToURL = '../';
393 break;
394 }
395
396 // If there is a redirect URL AND if loginRefresh is not set...
397 if (!$this->loginRefresh) {
398 t3lib_utility_Http::redirect($this->redirectToURL);
399 } else {
400 $formprotection = t3lib_formprotection_Factory::get();
401 $token = $formprotection->generateToken('extDirect');
402 $TBE_TEMPLATE->JScode.=$TBE_TEMPLATE->wrapScriptTags('
403 if (parent.opener && (parent.opener.busy || parent.opener.TYPO3.loginRefresh)) {
404 if (parent.opener.TYPO3.loginRefresh) {
405 parent.opener.TYPO3.loginRefresh.startTimer();
406 } else {
407 parent.opener.busy.loginRefreshed();
408 }
409 parent.opener.TYPO3.ExtDirectToken = "' . $token . '";
410 parent.close();
411 }
412 ');
413 }
414 } elseif (!$BE_USER->user['uid'] && $this->commandLI) {
415 sleep(5); // Wrong password, wait for 5 seconds
416 }
417 }
418
419 /**
420 * Making interface selector:
421 *
422 * @return void
423 */
424 function makeInterfaceSelectorBox() {
425 global $TYPO3_CONF_VARS;
426
427 // Reset variables:
428 $this->interfaceSelector = '';
429 $this->interfaceSelector_hidden='';
430 $this->interfaceSelector_jump = '';
431
432 // If interfaces are defined AND no input redirect URL in GET vars:
433 if ($TYPO3_CONF_VARS['BE']['interfaces'] && ($this->commandLI || !$this->redirect_url)) {
434 $parts = t3lib_div::trimExplode(',',$TYPO3_CONF_VARS['BE']['interfaces']);
435 if (count($parts)>1) { // Only if more than one interface is defined will we show the selector:
436
437 // Initialize:
438 $labels=array();
439
440 $labels['backend'] = $GLOBALS['LANG']->getLL('interface.backend');
441 $labels['backend_old'] = $GLOBALS['LANG']->getLL('interface.backend_old');
442 $labels['frontend'] = $GLOBALS['LANG']->getLL('interface.frontend');
443
444 $jumpScript=array();
445 $jumpScript['backend'] = 'backend.php';
446 $jumpScript['backend_old'] = 'backend.php';
447 $jumpScript['frontend'] = '../';
448
449 // Traverse the interface keys:
450 foreach($parts as $valueStr) {
451 $this->interfaceSelector.='
452 <option value="'.htmlspecialchars($valueStr).'"'.(t3lib_div::_GP('interface')==htmlspecialchars($valueStr) ? ' selected="selected"' : '').'>'.htmlspecialchars($labels[$valueStr]).'</option>';
453 $this->interfaceSelector_jump.='
454 <option value="'.htmlspecialchars($jumpScript[$valueStr]).'">'.htmlspecialchars($labels[$valueStr]).'</option>';
455 }
456 $this->interfaceSelector='
457 <select id="t3-interfaceselector" name="interface" class="c-interfaceselector" tabindex="3">'.$this->interfaceSelector.'
458 </select>';
459 $this->interfaceSelector_jump='
460 <select id="t3-interfaceselector" name="interface" class="c-interfaceselector" tabindex="3" onchange="window.location.href=this.options[this.selectedIndex].value;">'.$this->interfaceSelector_jump.'
461 </select>';
462
463 } else { // If there is only ONE interface value set:
464
465 $this->interfaceSelector_hidden='<input type="hidden" name="interface" value="'.trim($TYPO3_CONF_VARS['BE']['interfaces']).'" />';
466 }
467 }
468 }
469
470 /**
471 * COPYRIGHT notice
472 *
473 * Warning:
474 * DO NOT prevent this notice from being shown in ANY WAY.
475 * According to the GPL license an interactive application must show such a notice on start-up ('If the program is interactive, make it output a short notice... ' - see GPL.txt)
476 * Therefore preventing this notice from being properly shown is a violation of the license, regardless of whether you remove it or use a stylesheet to obstruct the display.
477 *
478 * @return string Text/Image (HTML) for copyright notice.
479 */
480 function makeCopyrightNotice() {
481
482 // Get values from TYPO3_CONF_VARS:
483 $loginCopyrightWarrantyProvider = strip_tags(trim($GLOBALS['TYPO3_CONF_VARS']['SYS']['loginCopyrightWarrantyProvider']));
484 $loginCopyrightWarrantyURL = strip_tags(trim($GLOBALS['TYPO3_CONF_VARS']['SYS']['loginCopyrightWarrantyURL']));
485 $loginImageSmall = (trim($GLOBALS['TBE_STYLES']['loginBoxImageSmall'])) ? trim($GLOBALS['TBE_STYLES']['loginBoxImageSmall']) : 'gfx/loginlogo_transp.gif';
486
487 // Make warranty note:
488 if (strlen($loginCopyrightWarrantyProvider)>=2 && strlen($loginCopyrightWarrantyURL)>=10) {
489 $warrantyNote = sprintf($GLOBALS['LANG']->getLL('warranty.by'), htmlspecialchars($loginCopyrightWarrantyProvider), '<a href="' . htmlspecialchars($loginCopyrightWarrantyURL) . '" target="_blank">', '</a>');
490 } else {
491 $warrantyNote = sprintf($GLOBALS['LANG']->getLL('no.warranty'), '<a href="http://typo3.com/1316.0.html" target="_blank">', '</a>');
492 }
493
494 // Compile full copyright notice:
495 $copyrightNotice = '<a href="http://typo3.com/" target="_blank">'.
496 '<img src="' . $loginImageSmall . '" alt="' . $GLOBALS['LANG']->getLL('typo3.logo') . '" align="left" />' .
497 $GLOBALS['LANG']->getLL('typo3.cms') . ($GLOBALS['TYPO3_CONF_VARS']['SYS']['loginCopyrightShowVersion']?' ' . $GLOBALS['LANG']->getLL('version.short') . ' ' . htmlspecialchars($GLOBALS['TYPO_VERSION']):'') .
498 '</a>. ' .
499 $GLOBALS['LANG']->getLL('copyright') . ' &copy; ' . TYPO3_copyright_year . ' Kasper Sk&#229;rh&#248;j. ' . $GLOBALS['LANG']->getLL('extension.copyright') . ' ' .
500 sprintf($GLOBALS['LANG']->getLL('details.link'), '<a href="http://typo3.com/" target="_blank">http://typo3.com/</a>') . '<br /> ' .
501 $warrantyNote . ' ' .
502 sprintf($GLOBALS['LANG']->getLL('free.software'), '<a href="http://typo3.com/1316.0.html" target="_blank">', '</a> ') .
503 $GLOBALS['LANG']->getLL('keep.notice');
504
505 // Return notice:
506 return $copyrightNotice;
507 }
508
509 /**
510 * Returns the login box image, whether the default or an image from the rotation folder.
511 *
512 * @return string HTML image tag.
513 */
514 function makeLoginBoxImage() {
515 $loginboxImage = '';
516 if ($GLOBALS['TBE_STYLES']['loginBoxImage_rotationFolder']) { // Look for rotation image folder:
517 $absPath = t3lib_div::resolveBackPath(PATH_typo3.$GLOBALS['TBE_STYLES']['loginBoxImage_rotationFolder']);
518
519 // Get rotation folder:
520 $dir = t3lib_div::getFileAbsFileName($absPath);
521 if ($dir && @is_dir($dir)) {
522
523 // Get files for rotation into array:
524 $files = t3lib_div::getFilesInDir($dir,'png,jpg,gif');
525
526 // Pick random file:
527 $randImg = array_rand($files, 1);
528
529 // Get size of random file:
530 $imgSize = @getimagesize($dir.$files[$randImg]);
531
532 $imgAuthor = is_array($GLOBALS['TBE_STYLES']['loginBoxImage_author'])&&$GLOBALS['TBE_STYLES']['loginBoxImage_author'][$files[$randImg]] ? htmlspecialchars($GLOBALS['TBE_STYLES']['loginBoxImage_author'][$files[$randImg]]) : '';
533
534 // Create image tag:
535 if (is_array($imgSize)) {
536 $loginboxImage = '<img src="'.htmlspecialchars($GLOBALS['TBE_STYLES']['loginBoxImage_rotationFolder'].$files[$randImg]).'" '.$imgSize[3].' id="loginbox-image" alt="'.$imgAuthor.'" title="'.$imgAuthor.'" />';
537 }
538 }
539 } else { // If no rotation folder configured, print default image:
540
541 if (strstr(TYPO3_version,'-dev')) { // development version
542 $loginImage = 'loginbox_image_dev.png';
543 $imagecopy = 'You are running a development version of TYPO3 '.TYPO3_branch;
544 } else {
545 $loginImage = 'loginbox_image.jpg';
546 $imagecopy = 'Photo by J.C. Franca (www.digitalphoto.com.br)';
547 }
548 $loginboxImage = '<img'.t3lib_iconWorks::skinImg($GLOBALS['BACK_PATH'],'gfx/'.$loginImage,'width="200" height="133"').' id="loginbox-image" alt="'.$imagecopy.'" title="'.$imagecopy.'" />';
549 }
550
551 // Return image tag:
552 return $loginboxImage;
553 }
554
555 /**
556 * Make login news - renders the HTML content for a list of news shown under
557 * the login form. News data is added through $TYPO3_CONF_VARS
558 *
559 * @return string HTML content
560 * @credits Idea by Jan-Hendrik Heuing
561 * @deprecated $GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews'] is deprecated since 4.5. Use system news records instead.
562 */
563 function makeLoginNews() {
564 $newsContent = '';
565
566 $systemNews = $this->getSystemNews();
567 if (count($GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews'])) {
568 t3lib_div::logDeprecatedFunction();
569
570 $GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews'] = array_merge(
571 $systemNews,
572 $GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews']
573 );
574 } else {
575 $GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews'] = $systemNews;
576 }
577
578 // Traverse news array IF there are records in it:
579 if (is_array($GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews']) && count($GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews']) && !t3lib_div::_GP('loginRefresh')) {
580 $htmlParser = t3lib_div::makeInstance('t3lib_parsehtml_proc');
581 // get the main news template, and replace the subpart after looped through
582 $newsContent = t3lib_parsehtml::getSubpart($GLOBALS['TBE_TEMPLATE']->moduleTemplate, '###LOGIN_NEWS###');
583 $newsItemTemplate = t3lib_parsehtml::getSubpart($newsContent, '###NEWS_ITEM###');
584
585 $newsItem = '';
586 $count = 1;
587 foreach ($GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews'] as $newsItemData) {
588 $additionalClass = '';
589 if ($count == 1) {
590 $additionalClass = ' first-item';
591 } elseif($count == count($GLOBALS['TYPO3_CONF_VARS']['BE']['loginNews'])) {
592 $additionalClass = ' last-item';
593 }
594
595 $newsItemContent = $htmlParser->TS_transform_rte($htmlParser->TS_links_rte($newsItemData['content']));
596 $newsItemMarker = array(
597 '###HEADER###' => htmlspecialchars($newsItemData['header']),
598 '###DATE###' => htmlspecialchars($newsItemData['date']),
599 '###CONTENT###' => $newsItemContent,
600 '###CLASS###' => $additionalClass
601 );
602
603 $count++;
604 $newsItem .= t3lib_parsehtml::substituteMarkerArray($newsItemTemplate, $newsItemMarker);
605 }
606
607 $title = ($GLOBALS['TYPO3_CONF_VARS']['BE']['loginNewsTitle'] ? $GLOBALS['TYPO3_CONF_VARS']['BE']['loginNewsTitle'] : $GLOBALS['LANG']->getLL('newsheadline'));
608
609 $newsContent = t3lib_parsehtml::substituteMarker($newsContent, '###NEWS_HEADLINE###', htmlspecialchars($title));
610 $newsContent = t3lib_parsehtml::substituteSubpart($newsContent, '###NEWS_ITEM###', $newsItem);
611 }
612
613 return $newsContent;
614 }
615
616 /**
617 * Gets news from sys_news and converts them into a format suitable for
618 * showing them at the login screen.
619 *
620 * @return array An array of login news.
621 */
622 protected function getSystemNews() {
623 $systemNewsTable = 'sys_news';
624 $systemNews = array();
625
626 $systemNewsRecords = $GLOBALS['TYPO3_DB']->exec_SELECTgetRows(
627 'title, content, crdate',
628 $systemNewsTable,
629 '1=1' .
630 t3lib_BEfunc::BEenableFields($systemNewsTable) .
631 t3lib_BEfunc::deleteClause($systemNewsTable),
632 '',
633 'crdate DESC'
634 );
635
636 foreach ($systemNewsRecords as $systemNewsRecord) {
637 $systemNews[] = array(
638 'date' => date(
639 $GLOBALS['TYPO3_CONF_VARS']['SYS']['ddmmyy'],
640 $systemNewsRecord['crdate']
641 ),
642 'header' => $systemNewsRecord['title'],
643 'content' => $systemNewsRecord['content']
644 );
645 }
646
647 return $systemNews;
648 }
649
650 /**
651 * Returns the form tag
652 *
653 * @return string Opening form tag string
654 */
655 function startForm() {
656 $output = '';
657
658 // The form defaults to 'no login'. This prevents plain
659 // text logins to the Backend. The 'sv' extension changes the form to
660 // use superchallenged method and rsaauth extension makes rsa authetication.
661 $form = '<form action="index.php" method="post" name="loginform" ' .
662 'onsubmit="alert(\'No authentication methods available. Please, ' .
663 'contact your TYPO3 administrator.\');return false">';
664
665 // Call hooks. If they do not return anything, we fail to login
666 if (is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['typo3/index.php']['loginFormHook'])) {
667 foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['typo3/index.php']['loginFormHook'] as $function) {
668 $params = array();
669 $formCode = t3lib_div::callUserFunction($function, $params, $this);
670 if ($formCode) {
671 $form = $formCode;
672 break;
673 }
674 }
675 }
676
677 $output .= $form .
678 '<input type="hidden" name="login_status" value="login" />' .
679 '<input type="hidden" name="userident" value="" />' .
680 '<input type="hidden" name="redirect_url" value="'.htmlspecialchars($this->redirectToURL).'" />' .
681 '<input type="hidden" name="loginRefresh" value="'.htmlspecialchars($this->loginRefresh).'" />' .
682 $this->interfaceSelector_hidden . $this->addFields_hidden;
683
684 return $output;
685 }
686
687 /**
688 * Outputs an empty string. This function is obsolete and kept for the
689 * compatibility only.
690 *
691 * @param string $unused Unused
692 * @return string HTML output
693 * @deprecated since TYPO3 4.3, will be removed in TYPO3 4.6 - all the functionality was put in $this->startForm() and $this->addFields_hidden
694 */
695 function getHiddenFields($unused = '') {
696 t3lib_div::logDeprecatedFunction();
697 return '';
698 }
699
700 /**
701 * Creates JavaScript for the login form
702 *
703 * @return string JavaScript code
704 */
705 function getJScode() {
706 $JSCode = '';
707 if (is_array($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['typo3/index.php']['loginScriptHook'])) {
708 foreach ($GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['typo3/index.php']['loginScriptHook'] as $function) {
709 $params = array();
710 $JSCode = t3lib_div::callUserFunction($function, $params, $this);
711 if ($JSCode) {
712 break;
713 }
714 }
715 }
716 $JSCode .= $GLOBALS['TBE_TEMPLATE']->wrapScriptTags('
717 function startUp() {
718 // If the login screen is shown in the login_frameset window for re-login, then try to get the username of the current/former login from opening windows main frame:
719 try {
720 if (parent.opener && parent.opener.TS && parent.opener.TS.username && document.loginform && document.loginform.username) {
721 document.loginform.username.value = parent.opener.TS.username;
722 }
723 }
724 catch(error) {
725 //continue
726 }
727
728 // Wait a few millisecons before calling checkFocus(). This might be necessary because some browsers need some time to auto-fill in the form fields
729 window.setTimeout("checkFocus()", 50);
730 }
731
732 // This moves focus to the right input field:
733 function checkFocus() {
734 // If for some reason there already is a username in the username form field, move focus to the password field:
735 if (document.loginform.username && document.loginform.username.value == "") {
736 document.loginform.username.focus();
737 } else if (document.loginform.p_field && document.loginform.p_field.type!="hidden") {
738 document.loginform.p_field.focus();
739 }
740 }
741
742 // This function shows a warning, if user has capslock enabled
743 // parameter showWarning: shows warning if true and capslock active, otherwise only hides warning, if capslock gets inactive
744 function checkCapslock(e, showWarning) {
745 if (!isCapslock(e)) {
746 document.getElementById(\'t3-capslock\').style.display = \'none\';
747 } else if (showWarning) {
748 document.getElementById(\'t3-capslock\').style.display = \'block\';
749 }
750 }
751
752 // Checks weather capslock is enabled (returns true if enabled, false otherwise)
753 // thanks to http://24ways.org/2007/capturing-caps-lock
754
755 function isCapslock(e) {
756 var ev = e ? e : window.event;
757 if (!ev) {
758 return;
759 }
760 var targ = ev.target ? ev.target : ev.srcElement;
761 // get key pressed
762 var which = -1;
763 if (ev.which) {
764 which = ev.which;
765 } else if (ev.keyCode) {
766 which = ev.keyCode;
767 }
768 // get shift status
769 var shift_status = false;
770 if (ev.shiftKey) {
771 shift_status = ev.shiftKey;
772 } else if (ev.modifiers) {
773 shift_status = !!(ev.modifiers & 4);
774 }
775 return (((which >= 65 && which <= 90) && !shift_status) ||
776 ((which >= 97 && which <= 122) && shift_status));
777 }
778
779 // prevent opening the login form in the backend frameset
780 if (top.location.href != self.location.href) {
781 top.location.href = self.location.href;
782 }
783
784 ');
785
786 return $JSCode;
787 }
788
789
790 /**
791 * Checks if labels from $GLOBALS['TYPO3_CONF_VARS']['BE']['loginLabels'] were changed, and merge them to $GLOBALS['LOCAL_LANG'] if needed
792 *
793 * This method keeps backwards compatibility, if you modified your
794 * labels with the install tool, we recommend to transfer this labels to a locallang.xml file
795 * using the llxml extension
796 *
797 * @return void
798 */
799 protected function mergeOldLoginLabels() {
800 // Getting login labels
801 $oldLoginLabels = trim($GLOBALS['TYPO3_CONF_VARS']['BE']['loginLabels']);
802 if ($oldLoginLabels != '') {
803 // md5 hash of the default loginLabels string
804 $defaultOldLoginLabelsHash = 'bcf0d32e58c6454ea50c6c956f1f18f0';
805 // compare loginLabels from TYPO3_CONF_VARS to default value
806 if (md5($oldLoginLabels) != $defaultOldLoginLabelsHash) {
807 $lang = $GLOBALS['LANG']->lang;
808 $oldLoginLabelArray = explode('|',$oldLoginLabels);
809 $overrideLabelKeys = array(
810 'labels.username' => $oldLoginLabelArray[0],
811 'labels.password' => $oldLoginLabelArray[1],
812 'labels.interface' => $oldLoginLabelArray[2],
813 'labels.submitLogin' => $oldLoginLabelArray[3],
814 'labels.submitLogout' => $oldLoginLabelArray[4],
815 'availableInterfaces' => $oldLoginLabelArray[5],
816 'headline' => $oldLoginLabelArray[6],
817 'info.jscookies' => $oldLoginLabelArray[7],
818 'newsheadline' => $oldLoginLabelArray[8],
819 'error.login' => $oldLoginLabelArray[9],
820 );
821 if (!is_array($GLOBALS['LOCAL_LANG'][$lang])) {
822 $GLOBALS['LOCAL_LANG'][$lang] = array();
823 }
824 // now override the labels from the LOCAL_LANG with the TYPO3_CONF_VARS
825 foreach ($overrideLabelKeys as $labelKey => $label) {
826 $GLOBALS['LOCAL_LANG'][$lang][$labelKey] = $GLOBALS['LOCAL_LANG']['default'][$labelKey] = $label;
827 }
828 }
829 }
830 }
831 }
832
833
834 if (defined('TYPO3_MODE') && isset($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['typo3/index.php'])) {
835 include_once($GLOBALS['TYPO3_CONF_VARS'][TYPO3_MODE]['XCLASS']['typo3/index.php']);
836 }
837
838
839
840 // Make instance:
841 $SOBE = t3lib_div::makeInstance('SC_index');
842 $SOBE->init();
843 $SOBE->main();
844 $SOBE->printContent();
845
846 ?>