1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.5 2009/11/19 15:22:20 gci Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: package Apache::lonlogin;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::File ();
34: use Apache::lonnet;
35: use Apache::loncommon();
36: use Apache::lonauth();
37: use Apache::lonlocal;
38: use Apache::migrateuser();
39: use lib '/home/httpd/lib/perl/';
40: use LONCAPA;
41:
42: sub handler {
43: my $r = shift;
44:
45: &Apache::loncommon::get_unprocessed_cgi
46: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
47: $ENV{'REDIRECT_QUERY_STRING'}),
48: ['interface','username','domain','firsturl','localpath','localres',
49: 'token','role','symb']);
50: if (!defined($env{'form.firsturl'})) {
51: &Apache::lonacc::get_posted_cgi($r,['firsturl']);
52: }
53:
54: # -- check if they are a migrating user
55: if (defined($env{'form.token'})) {
56: return &Apache::migrateuser::handler($r);
57: }
58:
59: &Apache::loncommon::no_cache($r);
60: &Apache::lonlocal::get_language_handle($r);
61: &Apache::loncommon::content_type($r,'text/html');
62: $r->send_http_header;
63: return OK if $r->header_only;
64:
65:
66: # Are we re-routing?
67: if (-e '/home/httpd/html/lon-status/reroute.txt') {
68: &Apache::lonauth::reroute($r);
69: return OK;
70: }
71:
72:
73: # -------------------------------- Prevent users from attempting to login twice
74: my $handle = &Apache::lonnet::check_for_valid_session($r);
75: if ($handle=~/^publicuser\_/) {
76: # For "public user" - remove it, we apparently really want to login
77: unlink($r->dir_config('lonIDsDir')."/$handle.id");
78: } elsif ($handle ne '') {
79: # Indeed, a valid token is found
80: my $start_page =
81: &Apache::loncommon::start_page('Already logged in');
82: my $end_page =
83: &Apache::loncommon::end_page();
84: my $dest = '/adm/roles';
85: if ($env{'form.firsturl'} ne '') {
86: $dest = $env{'form.firsturl'};
87: }
88: $r->print(
89: $start_page
90: .'<h1>'.&mt('You are already logged in!').'</h1>'
91: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
92: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
93: .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
94: .$end_page
95: );
96: return OK;
97: }
98:
99: # ---------------------------------------------------- No valid token, continue
100:
101: # ---------------------------- Not possible to really login to domain "public"
102: if ($env{'form.domain'} eq 'public') {
103: $env{'form.domain'}='';
104: $env{'form.username'}='';
105: }
106: # ----------------------------------------------------------- Process Interface
107: $env{'form.interface'}=~s/\W//g;
108:
109: my $textbrowsers=$r->dir_config('lonTextBrowsers');
110: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
111:
112: foreach (split(/\:/,$textbrowsers)) {
113: if ($httpbrowser=~/$_/i) {
114: $env{'form.interface'}='textual';
115: }
116: }
117:
118: my $fullgraph=($env{'form.interface'} ne 'textual');
119:
120: my $iconpath=
121: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
122:
123: my $domain = &Apache::lonnet::default_login_domain();
124: if (($env{'form.domain'}) &&
125: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
126: $domain=$env{'form.domain'};
127: }
128: my $sitename = 'GCI WebCenter';
129: my $shortsitename = 'WebCenter';
130: my $existing = 'Existing WebCenter user?';
131: my $sitedesc = &mt('The Geoscience Concept Inventory (GCI) [_1]WebCenter[_2] is a place to comment on existing concept questions, or submit new ones, and is also a place to build and manage Concept Tests which your students will complete via the [_3]Testing Center[_2].','<a href="http://gci.lite.msu.edu/">','</a>','<a href="http://gcitest.lite.msu.edu/adm/login">');
132: my $role = $r->dir_config('lonRole');
133: my $loadlim = $r->dir_config('lonLoadLim');
134: my $servadm = $r->dir_config('lonAdmEMail');
135: my $lonhost = $r->dir_config('lonHostID');
136: my $tabdir = $r->dir_config('lonTabDir');
137: my $include = $r->dir_config('lonIncludes');
138: my $expire = $r->dir_config('lonExpire');
139: my $version = $r->dir_config('lonVersion');
140: my $host_name = &Apache::lonnet::hostname($lonhost);
141: if ($domain eq 'gcitest') {
142: $lonhost = 'gcitestl1';
143: $host_name = 'gcitest.lite.msu.edu';
144: $sitename = 'GCI Testing Center';
145: $shortsitename = 'Testing Center';
146: $existing = 'Student with Testing Center account?';
147: $sitedesc = &mt('The GCI Testing Center is used by [_1]students[_2] to complete online concept tests created by their instructors using questions available in the Geoscience Concept Inventory.','<i>','</i>');
148: }
149:
150: # --------------------------------------------- Default values for login fields
151:
152: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
153: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
154:
155: # ---------------------------------------------------------- Determine own load
156: my $loadavg;
157: {
158: my $loadfile=Apache::File->new('/proc/loadavg');
159: $loadavg=<$loadfile>;
160: }
161: $loadavg =~ s/\s.*//g;
162: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
163: my $userloadpercent=&Apache::lonnet::userload();
164:
165: # ------------------------------------------------------- Do the load balancing
166: my $otherserver= &Apache::lonnet::absolute_url($host_name);
167: my $firsturl=
168: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
169: # ---------------------------------------------------------- Are we overloaded?
170: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
171: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
172: if ($unloaded) { $otherserver=$unloaded; }
173: }
174:
175: # ----------------------------------------------------------- Get announcements
176: my $announcements=&Apache::lonnet::getannounce();
177: # -------------------------------------------------------- Set login parameters
178:
179: my @hexstr=('0','1','2','3','4','5','6','7',
180: '8','9','a','b','c','d','e','f');
181: my $lkey='';
182: for (0..7) {
183: $lkey.=$hexstr[rand(15)];
184: }
185:
186: my $ukey='';
187: for (0..7) {
188: $ukey.=$hexstr[rand(15)];
189: }
190:
191: my $lextkey=hex($lkey);
192: if ($lextkey>2147483647) { $lextkey-=4294967296; }
193:
194: my $uextkey=hex($ukey);
195: if ($uextkey>2147483647) { $uextkey-=4294967296; }
196:
197: # -------------------------------------------------------- Store away log token
198: my $tokenextras;
199: if ($env{'form.role'}) {
200: $tokenextras = '&role='.&escape($env{'form.role'});
201: }
202: if ($env{'form.symb'}) {
203: if (!$tokenextras) {
204: $tokenextras = '&';
205: }
206: $tokenextras .= '&symb='.&escape($env{'form.symb'});
207: }
208: my $logtoken=Apache::lonnet::reply(
209: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
210: $lonhost);
211:
212: # ------------------- If we cannot talk to ourselves, we are in serious trouble
213:
214: if ($logtoken eq 'con_lost') {
215: my $spares='';
216: my $last;
217: foreach my $hostid (sort
218: {
219: &Apache::lonnet::hostname($a) cmp
220: &Apache::lonnet::hostname($b);
221: }
222: keys(%Apache::lonnet::spareid)) {
223: next if ($hostid eq $lonhost);
224: my $hostname = &Apache::lonnet::hostname($hostid);
225: next if ($last eq $hostname);
226: $spares.='<br /><font size="+1"><a href="http://'.
227: $hostname.
228: '/adm/login?domain='.$authdomain.'">'.
229: $hostname.'</a>'.
230: ' '.&mt('(preferred)').'</font>'.$/;
231: $last=$hostname;
232: }
233: $spares.= '<br />';
234: my %all_hostnames = &Apache::lonnet::all_hostnames();
235: foreach my $hostid (sort
236: {
237: &Apache::lonnet::hostname($a) cmp
238: &Apache::lonnet::hostname($b);
239: }
240: keys(%all_hostnames)) {
241: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
242: my $hostname = &Apache::lonnet::hostname($hostid);
243: next if ($last eq $hostname);
244: $spares.='<br /><a href="http://'.
245: $hostname.
246: '/adm/login?domain='.$authdomain.'">'.
247: $hostname.'</a>';
248: $last=$hostname;
249: }
250: $r->print(
251: '<html>'
252: .'<head><title>'
253: .&mt('The LearningOnline Network with CAPA')
254: .'</title></head>'
255: .'<body bgcolor="#FFFFFF">'
256: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
257: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
258: .'<h3>'.&mt("The $sitename server is temporarily not available for login.").'</h3>'
259: .'</body>'
260: .'</html>'
261: );
262: return OK;
263: }
264:
265: # ----------------------------------------------- Apparently we are in business
266: $servadm=~s/\,/\<br \/\>/g;
267:
268: # ----------------------------------------------------------- Front page design
269: my $pgbg=
270: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
271: my $font=
272: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
273: my $link=
274: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
275: my $vlink=
276: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
277: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
278: my $mainbg=
279: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
280: my $sidebg=
281: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
282: my $textcol =
283: ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');
284: my $bgcol =
285: ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');
286: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
287: my $img=&Apache::loncommon::designparm('login.img',$domain);
288: my $domainlogo=&Apache::loncommon::domainlogo($domain);
289: my $login=&Apache::loncommon::designparm('login.login',$domain);
290: if ($login eq '') {
291: $login = $iconpath.'/'.&mt('userauthentication.gif');
292: }
293: my $showbanner = 1;
294: my $showmainlogo = 1;
295: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
296: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
297: }
298: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
299: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
300: }
301: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
302: my $showcoursecat =
303: &Apache::loncommon::designparm('login.coursecatalog',$domain);
304: my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
305: my $shownewuserlink =
306: &Apache::loncommon::designparm('login.newuser',$domain);
307: my $now=time;
308: my $js = (<<ENDSCRIPT);
309:
310: <script type="text/javascript" language="JavaScript">
311: // <![CDATA[
312:
313: function send(caller)
314: {
315:
316: if (caller == "newaccount") {
317: this.document.signup.submit();
318: return false;
319: }
320: if (document.client.uname.value == "" || !document.client.uname.value) {
321: alert("You must provide a username ");
322: return false;
323: }
324: if (document.client.upass$now.value == "" || !document.client.upass$now.value) {
325: alert("You must provide a password");
326: return false;
327: }
328:
329: this.document.server.elements.uname.value
330: =this.document.client.elements.uname.value;
331:
332: this.document.server.elements.udom.value
333: =this.document.client.elements.udom.value;
334:
335: this.document.server.elements.imagesuppress.value
336: =this.document.client.elements.imagesuppress.checked;
337:
338: this.document.server.elements.embedsuppress.value
339: =this.document.client.elements.embedsuppress.checked;
340:
341: this.document.server.elements.appletsuppress.value
342: =this.document.client.elements.appletsuppress.checked;
343:
344: this.document.server.elements.fontenhance.value
345: =this.document.client.elements.fontenhance.checked;
346:
347: this.document.server.elements.blackwhite.value
348: =this.document.client.elements.blackwhite.checked;
349:
350: this.document.server.elements.remember.value
351: =this.document.client.elements.remember.checked;
352:
353: uextkey=this.document.client.elements.uextkey.value;
354: lextkey=this.document.client.elements.lextkey.value;
355: initkeys();
356:
357: this.document.server.elements.upass0.value
358: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
359: this.document.server.elements.upass1.value
360: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
361: this.document.server.elements.upass2.value
362: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
363:
364: this.document.client.elements.uname.value='';
365: this.document.client.elements.upass$now.value='';
366:
367: this.document.server.submit();
368: return false;
369: }
370: // ]]>
371: </script>
372:
373: ENDSCRIPT
374:
375: # --------------------------------------------------- Print login screen header
376:
377: my %add_entries = (topmargin => "0",
378: leftmargin => "0",
379: marginheight => "0",
380: marginwidth => "0",
381: bgcolor => "$pgbg",
382: text => "$font",
383: link => "$link",
384: vlink => "$vlink",
385: alink => "$alink",
386: onload => "if ( document.client.uname ) { document.client.uname.focus(); }",
387: marginheight => "0",);
388:
389: my $css_url = "/css/$domain/login.css";
390: $js .= "\n".'<link type="text/css" rel="stylesheet" href="'.$css_url.'">'."\n";
391: $r->print(&Apache::loncommon::start_page('GCI WebCenter Login',$js,
392: { 'redirect' => [$expire,'/adm/roles'],
393: 'add_entries' => \%add_entries,
394: 'only_body' => 1,}));
395:
396: # ----------------------------------------------------------------------- Texts
397:
398: my %lt=&Apache::lonlocal::texthash(
399: 'un' => 'Username',
400: 'pw' => 'Password',
401: 'dom' => 'Domain',
402: 'load' => 'Server Load',
403: 'userload' => 'User Load',
404: 'about' => 'About LON-CAPA',
405: 'access' => 'Accessibility Options',
406: 'catalog' => 'Course Catalog',
407: 'log' => 'Log in',
408: 'help' => 'Log-in Help',
409: 'serv' => 'Server',
410: 'servadm' => 'Server Administration',
411: 'helpdesk' => 'Contact Helpdesk',
412: 'forgotpw' => 'Forgot password?',
413: 'newuser' => 'New User?',
414: 'options_headline' => 'Select Accessibility Options',
415: 'sprs_img' => 'Suppress rendering of images',
416: 'sprs_applet' => 'Suppress Java applets',
417: 'sprs_embed' => 'Suppress rendering of embedded multimedia',
418: 'sprs_font' => 'Increase font size',
419: 'sprs_blackwhite' => 'Switch to black and white mode',
420: 'remember' => 'Remember these settings for next login',
421: 'tbli' => 'Text-based Interface Login');
422: # -------------------------------------------------- Change password field name
423: my $forgotpw = &forgotpwdisplay(%lt);
424: my $loginhelp = &loginhelpdisplay(%lt);
425:
426: # ---------------------------------------------------- Serve out DES JavaScript
427: {
428: my $jsh=Apache::File->new($include."/londes.js");
429: $r->print(<$jsh>);
430: }
431: # ---------------------------------------------------------- Serve rest of page
432:
433: my $coursecatalog;
434: if (($showcoursecat eq '') || ($showcoursecat)) {
435: $coursecatalog = &coursecatalog_link($lt{'catalog'},$fullgraph);
436: }
437: my $newuserlink;
438: if ($shownewuserlink) {
439: $newuserlink = &newuser_link($lt{'newuser'});
440: }
441: if ($fullgraph) {
442: $r->print(<<"END_OF_BLOCK1");
443: <br />
444: <div align="center">
445: <table class="LC_loginbox">
446: <tr>
447: <td align="left" valign="top" width="11">
448: <img name="login_r1_c1" src="/images/login/$domain/r1_c1.png" width="11" height="11" border="0" alt="">
449: </td>
450: <td width="450" valign="top">
451: <table class="LC_loginbox_left">
452: <tr>
453: <td width="411" align="left"><br /><img src="/images/login/$domain/logo_smrnd.png" width="411" height="51" alt="GCI" align="left"></td>
454: </tr>
455: <tr>
456: <td>
457: <div align="left" style="display:block; margin-top:5px; margin-bottom:5px; margin-left:0px; margin-right:0px; width:440px; height:5px;">
458: <div class="divider">
459: </div>
460: </div>
461: </td>
462: </tr>
463: </table>
464: <table class="LC_loginbox_left">
465: <tr>
466: <td height="10" colspan="4"> </td>
467: </tr>
468: <tr>
469: <td width="10"> </td>
470: <td valign="top" class="bodyblue" width="430" align="left">
471: <span style="font-size: 18px; line-height: 22px; "><font style="font-size: 18px; line-height: 22px;"><br />New to the $sitename?</font></span><br />
472: <font class="bodyblue">$sitedesc<br /><br />The $shortsitename runs on <a href="http://loncapa.org/">LON-CAPA</a> - an open source freeware distributed learning content management and assessment system.</font><br /><br />
473: END_OF_BLOCK1
474: if ($domain eq 'gci') {
475: $r->print(<<"END_OF_BLOCK2");
476: <font class="bodyblue"><b>Create a GCI WebCenter ID</b> – use your ID to submit comments or new content, or to create a new test. If you are already a GCI WebCenter user, please log-in.</font><br /><br /><br />
477: <form name="signup" method="post" action="/adm/createaccount?courseid=gci_9615072b469884921gcil1"><input type="hidden" name="process" value="signup"/>
478: <table class="LC_signup">
479: <tr>
480: <td align="left" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c4.png" width="11" height="11" border="0" alt=""></td>
481: <td> </td>
482: <td align="right" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c6.png" width="11" height="11" border="0" alt=""></td>
483: </tr>
484: <tr>
485: <td align="center" valign="top" colspan="3">New to GCI WebCenter: <a href="javascript:send('newaccount')" style="color: #ffffff">Click here to sign up</a><br /></td>
486: </tr>
487: <tr>
488: <td align="left" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c4.png" width="11" height="11" border="0" alt=""></td>
489: <td> </td>
490: <td align="right" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c6.png" width="11" height="11" border="0" alt=""></td>
491: </tr>
492: </table>
493: </form>
494: END_OF_BLOCK2
495: } else {
496: $r->print('<font class="bodyblue">'.
497: &mt("If you are already a $sitename user, please log-in.").' '.&mt('If not, contact your instructor to request a username and password.').
498: '</font><br /><br /><br />');
499: }
500: $r->print(<<"END_OF_BLOCK3");
501: </td>
502: </tr>
503: </table>
504: </td>
505: <td width="10"> </td>
506: <td valign="top">
507: <form name="client" method="post" onsubmit="return(send());">
508: <table class="LC_loginbox_right">
509: <tr>
510: <td colspan="3" height="23" class="LC_loginbox_strip"> </td>
511: </tr>
512: <tr>
513: <td align="left" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c4.png" width="11" height="11" border="0" alt=""></td>
514: <td> </td>
515: <td align="right" valign="top" width="11" height="11"><img src="/images/login/$domain/r2_c6.png" width="11" height="11" border="0" alt=""></td>
516: </tr>
517: <tr>
518: <td width="10"> </td>
519: <td>
520: <table border="0" cellspacing="0" cellpadding="0">
521: <tr>
522: <td align="right" class="bodywhite" height=50><br>
523: <span style="font-size: 15px; line-height: 17px; font-weight: bold;">
524: $existing</span>
525: <br />Please log-in.<br>
526: <hr class="login"><br /><br />
527: </td>
528: </tr>
529: <tr>
530: <td>
531: <table border="0" cellpadding="2" cellspacing="0">
532: <tr>
533: <td align="right" class="bodywhite"><label for="uname">$lt{'un'}</label>:</td>
534: <td align="right"><input type="text" name="uname" size="17" value="$authusername" /></td>
535: </tr>
536: <tr>
537: <td align="right" class="bodywhite"><label for="upass$now">$lt{'pw'}</label>:</td>
538: <td align="right"><input name="upass$now" size="17" value="" type="password"><input type="hidden" name="udom" value="$domain" /></td>
539: </tr>
540: <tr><td> </td></tr>
541: <tr>
542: <td colspan="2" align="right"><input name="signin" type="submit" value="Log-in" class=buttonwhite /></td>
543: </tr>
544: </table>
545: </td>
546: </tr>
547: <tr>
548: <td align="right" valign="top" class="bodywhite">
549: <br />
550: <br /><br />
551: <hr class="login" />
552: <br />
553: <a href="/adm/resetpw" style="color: #ffffff">Forgot your password?</a><br>
554: <br />
555: </td>
556: </tr>
557: </table>
558: </td>
559: <td width="9"> </td>
560: </tr>
561: <tr>
562: <td align="left" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c4.png" width="11" height="11" border="0" alt=""></td>
563: <td> </td>
564: <td align="right" valign="bottom" width="11" height="11"><img src="/images/login/$domain/r8_c6.png" width="11" height="11" border="0" alt=""></td>
565: </tr>
566: <tr>
567: <td colspan="3" height="10" class="LC_loginbox_strip"> </td>
568: </tr>
569: </table>
570: </td>
571: <td align="right" valign="top" width="11"><img src="/images/login/$domain/r1_c7.png" width="11" height="11" border="0" alt=""></td>
572: </tr>
573: <tr>
574: <td colspan="4">
575: <table border="0" cellspacing="0" cellpadding="0">
576: <tr>
577: <td width="10"> </td>
578: <td><font size="-1">
579: <b>Note</b>:<br>
580: If log-in fails, it may be because your browser is not accepting session cookies, or javascript is disabled. <a href="http://loncapa.msu.edu/student/cookies.html">Learn more</a>.
581: </font>
582: </td>
583: <td width="10"> </td>
584: </tr>
585: </table>
586: </td>
587: </tr>
588: <tr>
589: <td align="left" valign="bottom" width="11"><img src="/images/login/$domain/r9_c1.png" width="11" height="11" border="0" alt=""></td>
590: <td colspan="3" width="698"> </td>
591: <td align="right" valign="bottom" width="11"><img src="/images/login/$domain/r9_c7.png" width="11" height="11" border="0" alt=""></td>
592: </tr>
593: </table>
594: </div>
595: <p> </p>
596: <noscript><font size='3'> <b>Please Note:</b>
597: Javascript must be enabled in your web browser in order to use this web site.
598: </font></noscript>
599: <p> </p>
600: <input type="hidden" name="imagesuppress" value="" />
601: <input type="hidden" name="embedsuppress" value="" />
602: <input type="hidden" name="appletsuppress" value="" />
603: <input type="hidden" name="fontenhance" value="" />
604: <input type="hidden" name="blackwhite" value="" />
605: <input type="hidden" name="remember" value="" />
606: END_OF_BLOCK3
607: } else {
608: $r->print(<<ENDACCESSOPTIONS);
609: <h1>The Learning<i>Online</i> Network with CAPA</h1>
610: <h2>$lt{'tbli'}</h2>$announcements
611: <h3>$lt{'options_headline'}</h3>
612: <form name="client" action="" onsubmit="return(send())">
613: <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />
614: <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />
615: <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />
616: <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />
617: <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />
618: <br />
619: <input type="checkbox" name="remember" /> $lt{'remember'}
620: ENDACCESSOPTIONS
621: }
622: $r->print('
623: <input type="hidden" name="lextkey" value="'.$lextkey.'" />
624: <input type="hidden" name="uextkey" value="'.$uextkey.'" />
625: ');
626: unless ($fullgraph) {
627: my $logintitle;
628: if ($loginheader eq 'text') {
629: $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2"> <b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';
630: } else {
631: $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.
632: &mt('User Authentication').'" /></td>';
633: }
634: my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'
635: .'<noscript><div class="LC_warning"><font size="-1">'
636: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
637: .'</font></div></noscript></td>';
638: $r->print(<<ENDTEXTUAL);
639: <hr />
640: <table border="0" cellspacing="0" cellpadding="0">
641: <tr>$logintitle</tr>
642: <tr>$noscript_warning</tr>
643: <tr>
644: <td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
645: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
646: </tr>
647: <tr>
648: <td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
649: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
650: </tr>
651: <tr>
652: <td bgcolor="$mainbg"> </td>
653: <td bgcolor="$mainbg" valign="bottom" align="center">
654: <br />
655: <input type="submit" value="$lt{'log'}" />
656: <input type="hidden" name="udom" value="$domain" />
657: </td>
658: </tr>
659: <tr>
660: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
661: $loginhelp
662: $forgotpw
663: $newuserlink
664: $coursecatalog
665: <br />
666: </td>
667: </tr>
668: </table>
669: ENDTEXTUAL
670: }
671: $r->print(<<"ENDLOGIN");
672: </form>
673: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
674: <input type="hidden" name="logtoken" value="$logtoken" />
675: <input type="hidden" name="serverid" value="$lonhost" />
676: <input type="hidden" name="interface" value="$env{'form.interface'}" />
677: <input type="hidden" name="uname" value="" />
678: <input type="hidden" name="upass0" value="" />
679: <input type="hidden" name="upass1" value="" />
680: <input type="hidden" name="upass2" value="" />
681: <input type="hidden" name="udom" value="" />
682: <input type="hidden" name="imagesuppress" value="" />
683: <input type="hidden" name="appletsuppress" value="" />
684: <input type="hidden" name="embedsuppress" value="" />
685: <input type="hidden" name="fontenhance" value="" />
686: <input type="hidden" name="blackwhite" value="" />
687: <input type="hidden" name="remember" value="" />
688: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
689: <input type="hidden" name="localres" value="$env{'form.localres'}" />
690: </form>
691: ENDLOGIN
692: if ($fullgraph) {
693: my $helpdeskscript;
694: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
695: $version,$authdomain,\$helpdeskscript);
696: }
697: my %endargs = ( 'noredirectlink' => 1, );
698: $r->print(&Apache::loncommon::end_page(\%endargs));
699: return OK;
700: }
701:
702: sub contactdisplay {
703: my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
704: my $contactblock;
705: my $showhelpdesk = 0;
706: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
707: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
708: $showhelpdesk = 1;
709: }
710: if ($servadm && $showadminmail) {
711: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
712: '<tt> '.$servadm.'</tt><br /> <br />';
713: }
714: if ($showhelpdesk) {
715: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
716: my $thisurl = &escape('/adm/login');
717: $$helpdeskscript = <<"ENDSCRIPT";
718: <script type="text/javascript">
719: // <![CDATA[
720: function helpdesk() {
721: var codedom = document.client.udom.value;
722: if (codedom == '') {
723: codedom = "$authdomain";
724: }
725: var querystr = "origurl=$thisurl&codedom="+codedom;
726: document.location.href = "/adm/helpdesk?"+querystr;
727: return;
728: }
729: // ]]>
730: </script>
731: ENDSCRIPT
732: }
733: $contactblock .= <<"ENDBLOCK";
734: $version
735: ENDBLOCK
736: return $contactblock;
737: }
738:
739: sub forgotpwdisplay {
740: my (%lt) = @_;
741: my $prompt_for_resetpw = 1;
742: if ($prompt_for_resetpw) {
743: return '<br /> <a href="/adm/resetpw"><b>'.$lt{'forgotpw'}.'</b></a><br />';
744: }
745: return;
746: }
747:
748: sub loginhelpdisplay {
749: my (%lt) = @_;
750: my $login_help = 1;
751: if ($login_help) {
752: return ' <a href="/adm/loginproblems.html"><b>'.$lt{'help'}.'</b></a>';
753: }
754: return;
755: }
756:
757: sub coursecatalog_link {
758: my ($linkname,$fullgraph) = @_;
759: my $link = '/adm/coursecatalog';
760: if (!$fullgraph) {
761: $link.= '?interface=textual';
762: }
763: return ' <a href="/adm/coursecatalog"><b>'.$linkname.'</b></a><br />';
764: END
765: }
766:
767: sub newuser_link {
768: my ($linkname) = @_;
769: return ' <a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';
770: }
771:
772: 1;
773: __END__
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