1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.95 2007/10/01 21:52:50 albertel 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 CGI::Cookie();
34: use Apache::File ();
35: use Apache::lonnet;
36: use Apache::loncommon();
37: use Apache::lonauth();
38: use Apache::lonlocal;
39: use Apache::migrateuser();
40: use lib '/home/httpd/lib/perl/';
41: use LONCAPA;
42:
43: sub handler {
44: my $r = shift;
45:
46: &Apache::loncommon::get_unprocessed_cgi
47: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
48: $ENV{'REDIRECT_QUERY_STRING'}),
49: ['interface','username','domain','firsturl','localpath','localres',
50: 'token']);
51:
52: # -- check if they are a migrating user
53: if (defined($env{'form.token'})) {
54: return &Apache::migrateuser::handler($r);
55: }
56:
57: &Apache::loncommon::no_cache($r);
58: &Apache::lonlocal::get_language_handle($r);
59: &Apache::loncommon::content_type($r,'text/html');
60: $r->send_http_header;
61: return OK if $r->header_only;
62:
63:
64: # Are we re-routing?
65: if (-e '/home/httpd/html/lon-status/reroute.txt') {
66: &Apache::lonauth::reroute($r);
67: return OK;
68: }
69:
70:
71: # -------------------------------- Prevent users from attempting to login twice
72: my $handle = &Apache::lonnet::check_for_valid_session($r);
73: if ($handle=~/^publicuser\_/) {
74: # For "public user" - remove it, we apparently really want to login
75: unlink($r->dir_config('lonIDsDir')."/$handle.id");
76: } elsif ($handle ne '') {
77: # Indeed, a valid token is found
78: my $start_page =
79: &Apache::loncommon::start_page('Already logged in');
80: my $end_page =
81: &Apache::loncommon::end_page();
82: $r->print(<<ENDFAILED);
83: $start_page
84: <h1>You are already logged in</h1>
85: <p>Please either <a href="/adm/roles">continue the current session</a> or
86: <a href="/adm/logout">logout</a>.</p>
87: <p>
88: <a href="/adm/loginproblems.html">Problems?</a></p>
89: $end_page
90: ENDFAILED
91: return OK;
92: }
93:
94: # ---------------------------------------------------- No valid token, continue
95:
96: # ---------------------------- Not possible to really login to domain "public"
97: if ($env{'form.domain'} eq 'public') {
98: $env{'form.domain'}='';
99: $env{'form.username'}='';
100: }
101: # ----------------------------------------------------------- Process Interface
102: $env{'form.interface'}=~s/\W//g;
103:
104: my $textbrowsers=$r->dir_config('lonTextBrowsers');
105: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
106:
107: foreach (split(/\:/,$textbrowsers)) {
108: if ($httpbrowser=~/$_/i) {
109: $env{'form.interface'}='textual';
110: }
111: }
112:
113: my $fullgraph=($env{'form.interface'} ne 'textual');
114:
115: my $iconpath=
116: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
117:
118: my $domain = &Apache::lonnet::default_login_domain();
119: if (($env{'form.domain'}) &&
120: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
121: $domain=$env{'form.domain'};
122: }
123: my $role = $r->dir_config('lonRole');
124: my $loadlim = $r->dir_config('lonLoadLim');
125: my $servadm = $r->dir_config('lonAdmEMail');
126: my $lonhost = $r->dir_config('lonHostID');
127: my $tabdir = $r->dir_config('lonTabDir');
128: my $include = $r->dir_config('lonIncludes');
129: my $expire = $r->dir_config('lonExpire');
130: my $version = $r->dir_config('lonVersion');
131: my $host_name = &Apache::lonnet::hostname($lonhost);
132:
133: # --------------------------------------------- Default values for login fields
134:
135: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
136: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
137:
138: # ---------------------------------------------------------- Determine own load
139: my $loadavg;
140: {
141: my $loadfile=Apache::File->new('/proc/loadavg');
142: $loadavg=<$loadfile>;
143: }
144: $loadavg =~ s/\s.*//g;
145: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
146: my $userloadpercent=&Apache::lonnet::userload();
147:
148: # ------------------------------------------------------- Do the load balancing
149: my $otherserver= &Apache::lonnet::absolute_url($host_name);
150: my $firsturl=
151: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
152: # ---------------------------------------- Are we access server and overloaded?
153: if (($role eq 'access') &&
154: (($userloadpercent>100.0)||($loadpercent>100.0))) {
155: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
156: if ($unloaded) { $otherserver=$unloaded; }
157: }
158:
159: # ----------------------------------------------------------- Get announcements
160: my $announcements=&Apache::lonnet::getannounce();
161: # -------------------------------------------------------- Set login parameters
162:
163: my @hexstr=('0','1','2','3','4','5','6','7',
164: '8','9','a','b','c','d','e','f');
165: my $lkey='';
166: for (0..7) {
167: $lkey.=$hexstr[rand(15)];
168: }
169:
170: my $ukey='';
171: for (0..7) {
172: $ukey.=$hexstr[rand(15)];
173: }
174:
175: my $lextkey=hex($lkey);
176: if ($lextkey>2147483647) { $lextkey-=4294967296; }
177:
178: my $uextkey=hex($ukey);
179: if ($uextkey>2147483647) { $uextkey-=4294967296; }
180:
181: # -------------------------------------------------------- Store away log token
182: my $logtoken=Apache::lonnet::reply(
183: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
184: $lonhost);
185:
186: # ------------------- If we cannot talk to ourselves, we are in serious trouble
187:
188: if ($logtoken eq 'con_lost') {
189: my $spares='';
190: my $last;
191: foreach my $hostid (sort
192: {
193: &Apache::lonnet::hostname($a) cmp
194: &Apache::lonnet::hostname($b);
195: }
196: keys(%Apache::lonnet::spareid)) {
197: next if ($hostid eq $lonhost);
198: my $hostname = &Apache::lonnet::hostname($hostid);
199: next if ($last eq $hostname);
200: $spares.='<br /><font size="+1"><a href="http://'.
201: $hostname.
202: '/adm/login?domain='.$authdomain.'">'.
203: $hostname.'</a>'.
204: ' (preferred)</font>'.$/;
205: $last=$hostname;
206: }
207: $spares.= '<br />';
208: my %all_hostnames = &Apache::lonnet::all_hostnames();
209: foreach my $hostid (sort
210: {
211: &Apache::lonnet::hostname($a) cmp
212: &Apache::lonnet::hostname($b);
213: }
214: keys(%all_hostnames)) {
215: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
216: my $hostname = &Apache::lonnet::hostname($hostid);
217: next if ($last eq $hostname);
218: $spares.='<br /><a href="http://'.
219: $hostname.
220: '/adm/login?domain='.$authdomain.'">'.
221: $hostname.'</a>';
222: $last=$hostname;
223: }
224: $r->print(<<ENDTROUBLE);
225: <html>
226: <head><title>The LearningOnline Network with CAPA</title></head>
227: <body bgcolor="#FFFFFF">
228: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
229: <h3>This LON-CAPA server is temporarily not available for login</h3>
230: <p>Please attempt to login to one of the following servers:</p>$spares
231: </body>
232: </html>
233: ENDTROUBLE
234: return OK;
235: }
236:
237: # ----------------------------------------------- Apparently we are in business
238: $servadm=~s/\,/\<br \/\>/g;
239:
240: # --------------------------------------------------- Print login screen header
241: $r->print(<<ENDHEADER);
242: <html>
243: <head>
244: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
245: <title>The LearningOnline Network with CAPA Login</title>
246: </head>
247: ENDHEADER
248: # ---------------------------------------------------- Serve out DES JavaScript
249: {
250: my $jsh=Apache::File->new($include."/londes.js");
251: $r->print(<$jsh>);
252: }
253:
254: # ----------------------------------------------------------- Front page design
255: my $pgbg=
256: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
257: my $font=
258: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
259: my $link=
260: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
261: my $vlink=
262: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
263: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
264: my $mainbg=
265: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
266: my $sidebg=
267: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
268: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
269: my $img=&Apache::loncommon::designparm('login.img',$domain);
270: my $domainlogo=&Apache::loncommon::domainlogo($domain);
271: my $showadminmail=&Apache::loncommon::designparm('login.adminmail', $domain);
272: my $showcoursecat =
273: &Apache::loncommon::designparm('login.coursecatalog',$domain);
274:
275:
276: # ----------------------------------------------------------------------- Texts
277:
278: my %lt=&Apache::lonlocal::texthash(
279: 'un' => 'Username',
280: 'pw' => 'Password',
281: 'dom' => 'Domain',
282: 'perc' => 'percent',
283: 'load' => 'Load',
284: 'userload' => 'User Load',
285: 'about' => 'About LON-CAPA',
286: 'access' => 'Accessibility Options',
287: 'catalog' => 'Course Catalog',
288: 'auth' => 'userauthentication.gif',
289: 'log' => 'Log in',
290: 'help' => 'Log-in Help',
291: 'serv' => 'Server',
292: 'servadm' => 'Server Administration',
293: 'helpdesk' => 'Contact Helpdesk',
294: 'forgotpw' => 'Forgot password?');
295: # -------------------------------------------------- Change password field name
296: my $now=time;
297: my $forgotpw = &forgotpwdisplay(%lt);
298: my $loginhelp = &loginhelpdisplay(%lt);
299: # ---------------------------------------------------------- Serve rest of page
300: $r->print(<<ENDSCRIPT);
301:
302: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
303: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
304:
305: <script language="JavaScript">
306: function send()
307: {
308: this.document.server.elements.uname.value
309: =this.document.client.elements.uname.value;
310:
311: this.document.server.elements.udom.value
312: =this.document.client.elements.udom.value;
313:
314: this.document.server.elements.imagesuppress.value
315: =this.document.client.elements.imagesuppress.checked;
316:
317: this.document.server.elements.embedsuppress.value
318: =this.document.client.elements.embedsuppress.checked;
319:
320: this.document.server.elements.appletsuppress.value
321: =this.document.client.elements.appletsuppress.checked;
322:
323: this.document.server.elements.fontenhance.value
324: =this.document.client.elements.fontenhance.checked;
325:
326: this.document.server.elements.blackwhite.value
327: =this.document.client.elements.blackwhite.checked;
328:
329: this.document.server.elements.remember.value
330: =this.document.client.elements.remember.checked;
331:
332: uextkey=this.document.client.elements.uextkey.value;
333: lextkey=this.document.client.elements.lextkey.value;
334: initkeys();
335:
336: this.document.server.elements.upass0.value
337: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
338: this.document.server.elements.upass1.value
339: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
340: this.document.server.elements.upass2.value
341: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
342:
343: this.document.client.elements.uname.value='';
344: this.document.client.elements.upass$now.value='';
345:
346: this.document.server.submit();
347: return false;
348: }
349: </script>
350: ENDSCRIPT
351:
352: if ($fullgraph) {
353: $r->print(
354: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
355: }
356:
357: $r->print(<<ENDSERVERFORM);
358: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
359: <input type="hidden" name="logtoken" value="$logtoken" />
360: <input type="hidden" name="serverid" value="$lonhost" />
361: <input type="hidden" name="interface" value="$env{'form.interface'}" />
362: <input type="hidden" name="uname" value="" />
363: <input type="hidden" name="upass0" value="" />
364: <input type="hidden" name="upass1" value="" />
365: <input type="hidden" name="upass2" value="" />
366: <input type="hidden" name="udom" value="" />
367: <input type="hidden" name="imagesuppress" value="" />
368: <input type="hidden" name="appletsuppress" value="" />
369: <input type="hidden" name="embedsuppress" value="" />
370: <input type="hidden" name="fontenhance" value="" />
371: <input type="hidden" name="blackwhite" value="" />
372: <input type="hidden" name="remember" value="" />
373: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
374: <input type="hidden" name="localres" value="$env{'form.localres'}" />
375: </form>
376: ENDSERVERFORM
377: my $coursecatalog;
378: if (($showcoursecat eq '') || ($showcoursecat)) {
379: $coursecatalog = &coursecatalog_link($lt{'catalog'});
380: }
381: if ($fullgraph) { $r->print(<<ENDTOP);
382: <!-- The LON-CAPA Header -->
383: <tr>
384:
385: <!-- Row 1 Columns 2-4 -->
386: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
387: </tr>
388:
389: <!-- The gray bar that starts the two table frames -->
390: <tr>
391:
392: <!-- Row 2 Column 1 -->
393: <td width=182 height=27 bgcolor="$sidebg"> </td>
394:
395: <!-- Row 2 Column 2 -->
396: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
397:
398: <!-- Row 2 Column 3 -->
399: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
400:
401: <!-- Row 2 Column 4 -->
402: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
403: </tr>
404: <tr>
405:
406: <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
407: <!-- Row 3 Column 1 -->
408: <td valign="top" height="60" align="left" bgcolor="$sidebg">
409: <table cellpadding="0" cellspacing="2" border="0">
410: <tr>
411: <td> </td>
412: <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
413: </tr>
414: <tr>
415: <td> </td>
416: <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
417: </tr>$coursecatalog
418: <tr>
419: <td colspan="2"> </td>
420: </tr>
421: </table>
422: </td>
423: <!-- The shaded space between the two main columns -->
424: <!-- Row 3 Column 2 -->
425: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
426:
427: <!-- The right main column holding the large LON-CAPA logo-->
428: <!-- Rows 3-4 Column 3 -->
429: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
430: <center>
431: <img src="$logo" alt="" />
432: </center>
433: </td>
434:
435: <!-- Row 3 Column 4 -->
436: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
437: </tr>
438: <tr>
439:
440: <!-- The entry form -->
441: <!-- Row 4 Column 1 -->
442: <td align="center" valign="middle" bgcolor="$sidebg">
443: ENDTOP
444: } else {
445: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
446: }
447: $r->print('<form name="client" onsubmit="return(send())">');
448: unless ($fullgraph) {
449: $r->print(<<ENDACCESSOPTIONS);
450: <h3>Select Accessibility Options</h3>
451: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
452: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
453: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
454: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
455: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
456: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
457: ENDACCESSOPTIONS
458: } else {
459: $r->print(<<ENDNOOPT);
460: <input type="hidden" name="imagesuppress" value="" />
461: <input type="hidden" name="embedsuppress" value="" />
462: <input type="hidden" name="appletsuppress" value="" />
463: <input type="hidden" name="fontenhance" value="" />
464: <input type="hidden" name="blackwhite" value="" />
465: <input type="hidden" name="remember" value="" />
466: ENDNOOPT
467: }
468: $r->print(<<ENDLOGIN);
469: <input type="hidden" name="lextkey" value="$lextkey">
470: <input type="hidden" name="uextkey" value="$uextkey">
471:
472: <!-- Start the sub-table for text and input alignment -->
473: <table border=0 cellspacing=0 cellpadding=0>
474: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
475: <tr>
476: <td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
477: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
478: </tr>
479: <tr>
480: <td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
481: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
482: </tr>
483: <tr>
484: <td bgcolor="$mainbg"><font size=-1><b> <label for="udom">$lt{'dom'}</label>:</b></font></td>
485: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
486: </tr>
487: <tr>
488: <td bgcolor="$mainbg"> </td>
489: <td bgcolor="$mainbg" valign="bottom" align="center">
490: <br />
491: <input type="submit" value="$lt{'log'}" />
492: </td>
493: </tr>
494: <tr>
495: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
496: $loginhelp
497: $forgotpw
498: </td>
499: </tr>
500: </table>
501: <!-- End sub-table -->
502: </form>
503: ENDLOGIN
504: if ($fullgraph) {
505: my $helpdeskscript;
506: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
507: $version,$authdomain,\$helpdeskscript);
508: $r->print(<<ENDDOCUMENT);
509: </td>
510:
511: <!-- Row 4 Column 2 -->
512: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
513:
514: <!-- Row 4 Column 3 -->
515: <td bgcolor="$mainbg">$announcements</td>
516:
517: <!-- Row 4 Column 4 -->
518: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
519: </tr>
520: <tr>
521:
522: <!-- Row 5 Column 1 -->
523: <td bgcolor="$sidebg" valign="middle" align="left">
524: <br />
525: <table border=0 cellspacing=0 cellpadding=0>
526: <tr>
527: <td bgcolor="$sidebg" align="left" valign="top">
528: <small><b> $lt{'dom'}: </b></small>
529: </td>
530: <td bgcolor="$sidebg" align="left" valign="top">
531: <small><tt> $domain</tt></small>
532: </td>
533: </tr>
534: <tr>
535: <td bgcolor="$sidebg" align="left" valign="top">
536: <small><b> $lt{'serv'}: </b></small>
537: </td>
538: <td bgcolor="$sidebg" align="left" valign="top">
539: <small><tt> $lonhost ($role)</tt></small>
540: </td>
541: </tr>
542: <tr>
543: <td bgcolor="$sidebg" align="left" valign="top">
544: <small><b> $lt{'load'}: </b></small>
545: </td>
546: <td bgcolor="$sidebg" align="left" valign="top">
547: <small><tt> $loadpercent $lt{'perc'}</tt></small>
548: </td>
549: </tr>
550: <tr>
551: <td bgcolor="$sidebg" align="left" valign="top">
552: <small><b> $lt{'userload'}: </b></small>
553: </td>
554: <td bgcolor="$sidebg" align="left" valign="top">
555: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
556: </td>
557: </tr>
558: </table>
559: <br />
560: $contactblock
561: </td>
562:
563: <!-- Row 5 Column 2 -->
564: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
565:
566: <!-- Row 5 Column 3 -->
567: <td width="100%" valign="bottom" bgcolor="$mainbg">
568: $domainlogo
569: </td>
570:
571: <!-- Row 5 Column 4 -->
572: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
573: </tr>
574: <tr>
575:
576: <!-- Row 6 Column 1 -->
577: <td bgcolor="$sidebg"> </td>
578:
579: <!-- Row 6 Column 2 -->
580: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
581:
582: <!-- Row 6 Column 3 -->
583: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
584:
585: <!-- Row 6 Column 4 -->
586: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
587: </tr>
588: </table>
589:
590: <script type="text/javascript">
591: // the if prevents the script error if the browser can not handle this
592: if ( document.client.uname ) { document.client.uname.focus(); }
593: </script>
594: $helpdeskscript
595:
596: ENDDOCUMENT
597: }
598: $r->print('</body></html>');
599: return OK;
600: }
601:
602: sub contactdisplay {
603: my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
604: my $contactblock;
605: my $showhelpdesk = 0;
606: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
607: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
608: $showhelpdesk = 1;
609: }
610: if ($servadm && $showadminmail) {
611: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
612: '<tt> '.$servadm.'</tt><br /> <br />';
613: }
614: if ($showhelpdesk) {
615: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
616: my $thisurl = &escape('/adm/login');
617: $$helpdeskscript = <<"ENDSCRIPT";
618: <script type="text/javascript">
619: function helpdesk() {
620: var codedom = document.client.udom.value;
621: if (codedom == '') {
622: codedom = "$authdomain";
623: }
624: var querystr = "origurl=$thisurl&codedom="+codedom;
625: document.location.href = "/adm/helpdesk?"+querystr;
626: return;
627: }
628: </script>
629: ENDSCRIPT
630: }
631: $contactblock .= <<"ENDBLOCK";
632: $version
633: ENDBLOCK
634: return $contactblock;
635: }
636:
637: sub forgotpwdisplay {
638: my (%lt) = @_;
639: my $prompt_for_resetpw = 1;
640: if ($prompt_for_resetpw) {
641: return '<br /> <a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
642: }
643: return;
644: }
645:
646: sub loginhelpdisplay {
647: my (%lt) = @_;
648: my $login_help = 1;
649: if ($login_help) {
650: return ' <a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
651: }
652: return;
653: }
654:
655: sub coursecatalog_link {
656: my ($linkname) = @_;
657: return <<"END";
658: <tr>
659: <td> </td>
660: <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
661: </tr>
662: END
663: }
664:
665: 1;
666: __END__
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