1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.94.2.1 2007/10/09 16:48:51 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 %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
73: my $lonid=$cookies{'lonID'};
74: my $cookie;
75: if ($lonid) {
76: my $handle=&LONCAPA::clean_handle($lonid->value);
77: my $lonidsdir=$r->dir_config('lonIDsDir');
78: if (-e "$lonidsdir/$handle.id") {
79: # Is there an existing token file?
80: if ($handle=~/^publicuser\_/) {
81: # For "public user" - remove it, we apparently really want to login
82: unlink("$lonidsdir/$handle.id");
83: } elsif ($handle ne '') {
84: # Indeed, a valid token is found
85: my $start_page =
86: &Apache::loncommon::start_page('Already logged in');
87: my $end_page =
88: &Apache::loncommon::end_page();
89: $r->print(<<ENDFAILED);
90: $start_page
91: <h1>You are already logged in</h1>
92: <p>Please either <a href="/adm/roles">continue the current session</a> or
93: <a href="/adm/logout">logout</a>.</p>
94: <p>
95: <a href="/adm/loginproblems.html">Problems?</a></p>
96: $end_page
97: ENDFAILED
98: return OK;
99: }
100: }
101: }
102:
103: # ---------------------------------------------------- No valid token, continue
104:
105: # ---------------------------- Not possible to really login to domain "public"
106: if ($env{'form.domain'} eq 'public') {
107: $env{'form.domain'}='';
108: $env{'form.username'}='';
109: }
110: # ----------------------------------------------------------- Process Interface
111: $env{'form.interface'}=~s/\W//g;
112:
113: my $textbrowsers=$r->dir_config('lonTextBrowsers');
114: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
115:
116: foreach (split(/\:/,$textbrowsers)) {
117: if ($httpbrowser=~/$_/i) {
118: $env{'form.interface'}='textual';
119: }
120: }
121:
122: my $fullgraph=($env{'form.interface'} ne 'textual');
123:
124: my $iconpath=
125: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
126:
127: my $domain = &Apache::lonnet::default_login_domain();
128: if (($env{'form.domain'}) &&
129: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
130: $domain=$env{'form.domain'};
131: }
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:
142: # --------------------------------------------- Default values for login fields
143:
144: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
145: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
146:
147: # ---------------------------------------------------------- Determine own load
148: my $loadavg;
149: {
150: my $loadfile=Apache::File->new('/proc/loadavg');
151: $loadavg=<$loadfile>;
152: }
153: $loadavg =~ s/\s.*//g;
154: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
155: my $userloadpercent=&Apache::lonnet::userload();
156:
157: # ------------------------------------------------------- Do the load balancing
158: my $otherserver= &Apache::lonnet::absolute_url($host_name);
159: my $firsturl=
160: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
161: # ---------------------------------------------------------- Are we overloaded?
162: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
163: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
164: if ($unloaded) { $otherserver=$unloaded; }
165: }
166:
167: # ----------------------------------------------------------- Get announcements
168: my $announcements=&Apache::lonnet::getannounce();
169: # -------------------------------------------------------- Set login parameters
170:
171: my @hexstr=('0','1','2','3','4','5','6','7',
172: '8','9','a','b','c','d','e','f');
173: my $lkey='';
174: for (0..7) {
175: $lkey.=$hexstr[rand(15)];
176: }
177:
178: my $ukey='';
179: for (0..7) {
180: $ukey.=$hexstr[rand(15)];
181: }
182:
183: my $lextkey=hex($lkey);
184: if ($lextkey>2147483647) { $lextkey-=4294967296; }
185:
186: my $uextkey=hex($ukey);
187: if ($uextkey>2147483647) { $uextkey-=4294967296; }
188:
189: # -------------------------------------------------------- Store away log token
190: my $logtoken=Apache::lonnet::reply(
191: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
192: $lonhost);
193:
194: # ------------------- If we cannot talk to ourselves, we are in serious trouble
195:
196: if ($logtoken eq 'con_lost') {
197: my $spares='';
198: my $last;
199: foreach my $hostid (sort
200: {
201: &Apache::lonnet::hostname($a) cmp
202: &Apache::lonnet::hostname($b);
203: }
204: keys(%Apache::lonnet::spareid)) {
205: next if ($hostid eq $lonhost);
206: my $hostname = &Apache::lonnet::hostname($hostid);
207: next if ($last eq $hostname);
208: $spares.='<br /><font size="+1"><a href="http://'.
209: $hostname.
210: '/adm/login?domain='.$authdomain.'">'.
211: $hostname.'</a>'.
212: ' (preferred)</font>'.$/;
213: $last=$hostname;
214: }
215: $spares.= '<br />';
216: my %all_hostnames = &Apache::lonnet::all_hostnames();
217: foreach my $hostid (sort
218: {
219: &Apache::lonnet::hostname($a) cmp
220: &Apache::lonnet::hostname($b);
221: }
222: keys(%all_hostnames)) {
223: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
224: my $hostname = &Apache::lonnet::hostname($hostid);
225: next if ($last eq $hostname);
226: $spares.='<br /><a href="http://'.
227: $hostname.
228: '/adm/login?domain='.$authdomain.'">'.
229: $hostname.'</a>';
230: $last=$hostname;
231: }
232: $r->print(<<ENDTROUBLE);
233: <html>
234: <head><title>The LearningOnline Network with CAPA</title></head>
235: <body bgcolor="#FFFFFF">
236: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
237: <h3>This LON-CAPA server is temporarily not available for login</h3>
238: <p>Please attempt to login to one of the following servers:</p>$spares
239: </body>
240: </html>
241: ENDTROUBLE
242: return OK;
243: }
244:
245: # ----------------------------------------------- Apparently we are in business
246: $servadm=~s/\,/\<br \/\>/g;
247:
248: # --------------------------------------------------- Print login screen header
249: $r->print(<<ENDHEADER);
250: <html>
251: <head>
252: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
253: <title>The LearningOnline Network with CAPA Login</title>
254: </head>
255: ENDHEADER
256: # ---------------------------------------------------- Serve out DES JavaScript
257: {
258: my $jsh=Apache::File->new($include."/londes.js");
259: $r->print(<$jsh>);
260: }
261:
262: # ----------------------------------------------------------- Front page design
263: my $pgbg=
264: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
265: my $font=
266: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
267: my $link=
268: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
269: my $vlink=
270: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
271: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
272: my $mainbg=
273: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
274: my $sidebg=
275: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
276: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
277: my $img=&Apache::loncommon::designparm('login.img',$domain);
278: my $domainlogo=&Apache::loncommon::domainlogo($domain);
279: my $showadminmail=&Apache::loncommon::designparm('login.adminmail', $domain);
280: my $showcoursecat =
281: &Apache::loncommon::designparm('login.coursecatalog',$domain);
282:
283:
284: # ----------------------------------------------------------------------- Texts
285:
286: my %lt=&Apache::lonlocal::texthash(
287: 'un' => 'Username',
288: 'pw' => 'Password',
289: 'dom' => 'Domain',
290: 'perc' => 'percent',
291: 'load' => 'Load',
292: 'userload' => 'User Load',
293: 'about' => 'About LON-CAPA',
294: 'access' => 'Accessibility Options',
295: 'catalog' => 'Course Catalog',
296: 'auth' => 'userauthentication.gif',
297: 'log' => 'Log in',
298: 'help' => 'Log-in Help',
299: 'serv' => 'Server',
300: 'servadm' => 'Server Administration',
301: 'helpdesk' => 'Contact Helpdesk',
302: 'forgotpw' => 'Forgot password?');
303: # -------------------------------------------------- Change password field name
304: my $now=time;
305: my $forgotpw = &forgotpwdisplay(%lt);
306: my $loginhelp = &loginhelpdisplay(%lt);
307: # ---------------------------------------------------------- Serve rest of page
308: $r->print(<<ENDSCRIPT);
309:
310: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
311: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
312:
313: <script language="JavaScript">
314: function send()
315: {
316: this.document.server.elements.uname.value
317: =this.document.client.elements.uname.value;
318:
319: this.document.server.elements.udom.value
320: =this.document.client.elements.udom.value;
321:
322: this.document.server.elements.imagesuppress.value
323: =this.document.client.elements.imagesuppress.checked;
324:
325: this.document.server.elements.embedsuppress.value
326: =this.document.client.elements.embedsuppress.checked;
327:
328: this.document.server.elements.appletsuppress.value
329: =this.document.client.elements.appletsuppress.checked;
330:
331: this.document.server.elements.fontenhance.value
332: =this.document.client.elements.fontenhance.checked;
333:
334: this.document.server.elements.blackwhite.value
335: =this.document.client.elements.blackwhite.checked;
336:
337: this.document.server.elements.remember.value
338: =this.document.client.elements.remember.checked;
339:
340: uextkey=this.document.client.elements.uextkey.value;
341: lextkey=this.document.client.elements.lextkey.value;
342: initkeys();
343:
344: this.document.server.elements.upass0.value
345: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
346: this.document.server.elements.upass1.value
347: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
348: this.document.server.elements.upass2.value
349: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
350:
351: this.document.client.elements.uname.value='';
352: this.document.client.elements.upass$now.value='';
353:
354: this.document.server.submit();
355: return false;
356: }
357: </script>
358: ENDSCRIPT
359:
360: if ($fullgraph) {
361: $r->print(
362: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
363: }
364:
365: $r->print(<<ENDSERVERFORM);
366: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
367: <input type="hidden" name="logtoken" value="$logtoken" />
368: <input type="hidden" name="serverid" value="$lonhost" />
369: <input type="hidden" name="interface" value="$env{'form.interface'}" />
370: <input type="hidden" name="uname" value="" />
371: <input type="hidden" name="upass0" value="" />
372: <input type="hidden" name="upass1" value="" />
373: <input type="hidden" name="upass2" value="" />
374: <input type="hidden" name="udom" value="" />
375: <input type="hidden" name="imagesuppress" value="" />
376: <input type="hidden" name="appletsuppress" value="" />
377: <input type="hidden" name="embedsuppress" value="" />
378: <input type="hidden" name="fontenhance" value="" />
379: <input type="hidden" name="blackwhite" value="" />
380: <input type="hidden" name="remember" value="" />
381: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
382: <input type="hidden" name="localres" value="$env{'form.localres'}" />
383: </form>
384: ENDSERVERFORM
385: my $coursecatalog;
386: if (($showcoursecat eq '') || ($showcoursecat)) {
387: $coursecatalog = &coursecatalog_link($lt{'catalog'});
388: }
389: if ($fullgraph) { $r->print(<<ENDTOP);
390: <!-- The LON-CAPA Header -->
391: <tr>
392:
393: <!-- Row 1 Columns 2-4 -->
394: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
395: </tr>
396:
397: <!-- The gray bar that starts the two table frames -->
398: <tr>
399:
400: <!-- Row 2 Column 1 -->
401: <td width=182 height=27 bgcolor="$sidebg"> </td>
402:
403: <!-- Row 2 Column 2 -->
404: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
405:
406: <!-- Row 2 Column 3 -->
407: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
408:
409: <!-- Row 2 Column 4 -->
410: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
411: </tr>
412: <tr>
413:
414: <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
415: <!-- Row 3 Column 1 -->
416: <td valign="top" height="60" align="left" bgcolor="$sidebg">
417: <table cellpadding="0" cellspacing="2" border="0">
418: <tr>
419: <td> </td>
420: <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
421: </tr>
422: <tr>
423: <td> </td>
424: <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
425: </tr>$coursecatalog
426: <tr>
427: <td colspan="2"> </td>
428: </tr>
429: </table>
430: </td>
431: <!-- The shaded space between the two main columns -->
432: <!-- Row 3 Column 2 -->
433: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
434:
435: <!-- The right main column holding the large LON-CAPA logo-->
436: <!-- Rows 3-4 Column 3 -->
437: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
438: <center>
439: <img src="$logo" alt="" />
440: </center>
441: </td>
442:
443: <!-- Row 3 Column 4 -->
444: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
445: </tr>
446: <tr>
447:
448: <!-- The entry form -->
449: <!-- Row 4 Column 1 -->
450: <td align="center" valign="middle" bgcolor="$sidebg">
451: ENDTOP
452: } else {
453: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
454: }
455: $r->print('<form name="client" onsubmit="return(send())">');
456: unless ($fullgraph) {
457: $r->print(<<ENDACCESSOPTIONS);
458: <h3>Select Accessibility Options</h3>
459: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
460: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
461: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
462: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
463: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
464: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
465: ENDACCESSOPTIONS
466: } else {
467: $r->print(<<ENDNOOPT);
468: <input type="hidden" name="imagesuppress" value="" />
469: <input type="hidden" name="embedsuppress" value="" />
470: <input type="hidden" name="appletsuppress" value="" />
471: <input type="hidden" name="fontenhance" value="" />
472: <input type="hidden" name="blackwhite" value="" />
473: <input type="hidden" name="remember" value="" />
474: ENDNOOPT
475: }
476: $r->print(<<ENDLOGIN);
477: <input type="hidden" name="lextkey" value="$lextkey">
478: <input type="hidden" name="uextkey" value="$uextkey">
479:
480: <!-- Start the sub-table for text and input alignment -->
481: <table border=0 cellspacing=0 cellpadding=0>
482: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
483: <tr>
484: <td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
485: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
486: </tr>
487: <tr>
488: <td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
489: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
490: </tr>
491: <tr>
492: <td bgcolor="$mainbg"><font size=-1><b> <label for="udom">$lt{'dom'}</label>:</b></font></td>
493: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
494: </tr>
495: <tr>
496: <td bgcolor="$mainbg"> </td>
497: <td bgcolor="$mainbg" valign="bottom" align="center">
498: <br />
499: <input type="submit" value="$lt{'log'}" />
500: </td>
501: </tr>
502: <tr>
503: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
504: $loginhelp
505: $forgotpw
506: </td>
507: </tr>
508: </table>
509: <!-- End sub-table -->
510: </form>
511: ENDLOGIN
512: if ($fullgraph) {
513: my $helpdeskscript;
514: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
515: $version,$authdomain,\$helpdeskscript);
516: $r->print(<<ENDDOCUMENT);
517: </td>
518:
519: <!-- Row 4 Column 2 -->
520: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
521:
522: <!-- Row 4 Column 3 -->
523: <td bgcolor="$mainbg">$announcements</td>
524:
525: <!-- Row 4 Column 4 -->
526: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
527: </tr>
528: <tr>
529:
530: <!-- Row 5 Column 1 -->
531: <td bgcolor="$sidebg" valign="middle" align="left">
532: <br />
533: <table border=0 cellspacing=0 cellpadding=0>
534: <tr>
535: <td bgcolor="$sidebg" align="left" valign="top">
536: <small><b> $lt{'dom'}: </b></small>
537: </td>
538: <td bgcolor="$sidebg" align="left" valign="top">
539: <small><tt> $domain</tt></small>
540: </td>
541: </tr>
542: <tr>
543: <td bgcolor="$sidebg" align="left" valign="top">
544: <small><b> $lt{'serv'}: </b></small>
545: </td>
546: <td bgcolor="$sidebg" align="left" valign="top">
547: <small><tt> $lonhost ($role)</tt></small>
548: </td>
549: </tr>
550: <tr>
551: <td bgcolor="$sidebg" align="left" valign="top">
552: <small><b> $lt{'load'}: </b></small>
553: </td>
554: <td bgcolor="$sidebg" align="left" valign="top">
555: <small><tt> $loadpercent $lt{'perc'}</tt></small>
556: </td>
557: </tr>
558: <tr>
559: <td bgcolor="$sidebg" align="left" valign="top">
560: <small><b> $lt{'userload'}: </b></small>
561: </td>
562: <td bgcolor="$sidebg" align="left" valign="top">
563: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
564: </td>
565: </tr>
566: </table>
567: <br />
568: $contactblock
569: </td>
570:
571: <!-- Row 5 Column 2 -->
572: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
573:
574: <!-- Row 5 Column 3 -->
575: <td width="100%" valign="bottom" bgcolor="$mainbg">
576: $domainlogo
577: </td>
578:
579: <!-- Row 5 Column 4 -->
580: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
581: </tr>
582: <tr>
583:
584: <!-- Row 6 Column 1 -->
585: <td bgcolor="$sidebg"> </td>
586:
587: <!-- Row 6 Column 2 -->
588: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
589:
590: <!-- Row 6 Column 3 -->
591: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
592:
593: <!-- Row 6 Column 4 -->
594: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
595: </tr>
596: </table>
597:
598: <script type="text/javascript">
599: // the if prevents the script error if the browser can not handle this
600: if ( document.client.uname ) { document.client.uname.focus(); }
601: </script>
602: $helpdeskscript
603:
604: ENDDOCUMENT
605: }
606: $r->print('</body></html>');
607: return OK;
608: }
609:
610: sub contactdisplay {
611: my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
612: my $contactblock;
613: my $showhelpdesk = 0;
614: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
615: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
616: $showhelpdesk = 1;
617: }
618: if ($servadm && $showadminmail) {
619: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
620: '<tt> '.$servadm.'</tt><br /> <br />';
621: }
622: if ($showhelpdesk) {
623: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
624: my $thisurl = &escape('/adm/login');
625: $$helpdeskscript = <<"ENDSCRIPT";
626: <script type="text/javascript">
627: function helpdesk() {
628: var codedom = document.client.udom.value;
629: if (codedom == '') {
630: codedom = "$authdomain";
631: }
632: var querystr = "origurl=$thisurl&codedom="+codedom;
633: document.location.href = "/adm/helpdesk?"+querystr;
634: return;
635: }
636: </script>
637: ENDSCRIPT
638: }
639: $contactblock .= <<"ENDBLOCK";
640: $version
641: ENDBLOCK
642: return $contactblock;
643: }
644:
645: sub forgotpwdisplay {
646: my (%lt) = @_;
647: my $prompt_for_resetpw = 1;
648: if ($prompt_for_resetpw) {
649: return '<br /> <a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
650: }
651: return;
652: }
653:
654: sub loginhelpdisplay {
655: my (%lt) = @_;
656: my $login_help = 1;
657: if ($login_help) {
658: return ' <a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
659: }
660: return;
661: }
662:
663: sub coursecatalog_link {
664: my ($linkname) = @_;
665: return <<"END";
666: <tr>
667: <td> </td>
668: <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
669: </tr>
670: END
671: }
672:
673: 1;
674: __END__
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