1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.97 2007/10/09 16:27:08 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 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: $ENV{'REDIRECT_QUERY_STRING'}),
48: ['interface','username','domain','firsturl','localpath','localres',
49: 'token']);
50:
51: # -- check if they are a migrating user
52: if (defined($env{'form.token'})) {
53: return &Apache::migrateuser::handler($r);
54: }
55:
56: &Apache::loncommon::no_cache($r);
57: &Apache::lonlocal::get_language_handle($r);
58: &Apache::loncommon::content_type($r,'text/html');
59: $r->send_http_header;
60: return OK if $r->header_only;
61:
62:
63: # Are we re-routing?
64: if (-e '/home/httpd/html/lon-status/reroute.txt') {
65: &Apache::lonauth::reroute($r);
66: return OK;
67: }
68:
69:
70: # -------------------------------- Prevent users from attempting to login twice
71: my $handle = &Apache::lonnet::check_for_valid_session($r);
72: if ($handle=~/^publicuser\_/) {
73: # For "public user" - remove it, we apparently really want to login
74: unlink($r->dir_config('lonIDsDir')."/$handle.id");
75: } elsif ($handle ne '') {
76: # Indeed, a valid token is found
77: my $start_page =
78: &Apache::loncommon::start_page('Already logged in');
79: my $end_page =
80: &Apache::loncommon::end_page();
81: $r->print(<<ENDFAILED);
82: $start_page
83: <h1>You are already logged in</h1>
84: <p>Please either <a href="/adm/roles">continue the current session</a> or
85: <a href="/adm/logout">logout</a>.</p>
86: <p>
87: <a href="/adm/loginproblems.html">Problems?</a></p>
88: $end_page
89: ENDFAILED
90: return OK;
91: }
92:
93: # ---------------------------------------------------- No valid token, continue
94:
95: # ---------------------------- Not possible to really login to domain "public"
96: if ($env{'form.domain'} eq 'public') {
97: $env{'form.domain'}='';
98: $env{'form.username'}='';
99: }
100: # ----------------------------------------------------------- Process Interface
101: $env{'form.interface'}=~s/\W//g;
102:
103: my $textbrowsers=$r->dir_config('lonTextBrowsers');
104: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
105:
106: foreach (split(/\:/,$textbrowsers)) {
107: if ($httpbrowser=~/$_/i) {
108: $env{'form.interface'}='textual';
109: }
110: }
111:
112: my $fullgraph=($env{'form.interface'} ne 'textual');
113:
114: my $iconpath=
115: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
116:
117: my $domain = &Apache::lonnet::default_login_domain();
118: if (($env{'form.domain'}) &&
119: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
120: $domain=$env{'form.domain'};
121: }
122: my $role = $r->dir_config('lonRole');
123: my $loadlim = $r->dir_config('lonLoadLim');
124: my $servadm = $r->dir_config('lonAdmEMail');
125: my $lonhost = $r->dir_config('lonHostID');
126: my $tabdir = $r->dir_config('lonTabDir');
127: my $include = $r->dir_config('lonIncludes');
128: my $expire = $r->dir_config('lonExpire');
129: my $version = $r->dir_config('lonVersion');
130: my $host_name = &Apache::lonnet::hostname($lonhost);
131:
132: # --------------------------------------------- Default values for login fields
133:
134: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
135: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
136:
137: # ---------------------------------------------------------- Determine own load
138: my $loadavg;
139: {
140: my $loadfile=Apache::File->new('/proc/loadavg');
141: $loadavg=<$loadfile>;
142: }
143: $loadavg =~ s/\s.*//g;
144: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
145: my $userloadpercent=&Apache::lonnet::userload();
146:
147: # ------------------------------------------------------- Do the load balancing
148: my $otherserver= &Apache::lonnet::absolute_url($host_name);
149: my $firsturl=
150: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
151: # ---------------------------------------------------------- Are we overloaded?
152: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
153: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
154: if ($unloaded) { $otherserver=$unloaded; }
155: }
156:
157: # ----------------------------------------------------------- Get announcements
158: my $announcements=&Apache::lonnet::getannounce();
159: # -------------------------------------------------------- Set login parameters
160:
161: my @hexstr=('0','1','2','3','4','5','6','7',
162: '8','9','a','b','c','d','e','f');
163: my $lkey='';
164: for (0..7) {
165: $lkey.=$hexstr[rand(15)];
166: }
167:
168: my $ukey='';
169: for (0..7) {
170: $ukey.=$hexstr[rand(15)];
171: }
172:
173: my $lextkey=hex($lkey);
174: if ($lextkey>2147483647) { $lextkey-=4294967296; }
175:
176: my $uextkey=hex($ukey);
177: if ($uextkey>2147483647) { $uextkey-=4294967296; }
178:
179: # -------------------------------------------------------- Store away log token
180: my $logtoken=Apache::lonnet::reply(
181: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
182: $lonhost);
183:
184: # ------------------- If we cannot talk to ourselves, we are in serious trouble
185:
186: if ($logtoken eq 'con_lost') {
187: my $spares='';
188: my $last;
189: foreach my $hostid (sort
190: {
191: &Apache::lonnet::hostname($a) cmp
192: &Apache::lonnet::hostname($b);
193: }
194: keys(%Apache::lonnet::spareid)) {
195: next if ($hostid eq $lonhost);
196: my $hostname = &Apache::lonnet::hostname($hostid);
197: next if ($last eq $hostname);
198: $spares.='<br /><font size="+1"><a href="http://'.
199: $hostname.
200: '/adm/login?domain='.$authdomain.'">'.
201: $hostname.'</a>'.
202: ' (preferred)</font>'.$/;
203: $last=$hostname;
204: }
205: $spares.= '<br />';
206: my %all_hostnames = &Apache::lonnet::all_hostnames();
207: foreach my $hostid (sort
208: {
209: &Apache::lonnet::hostname($a) cmp
210: &Apache::lonnet::hostname($b);
211: }
212: keys(%all_hostnames)) {
213: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
214: my $hostname = &Apache::lonnet::hostname($hostid);
215: next if ($last eq $hostname);
216: $spares.='<br /><a href="http://'.
217: $hostname.
218: '/adm/login?domain='.$authdomain.'">'.
219: $hostname.'</a>';
220: $last=$hostname;
221: }
222: $r->print(<<ENDTROUBLE);
223: <html>
224: <head><title>The LearningOnline Network with CAPA</title></head>
225: <body bgcolor="#FFFFFF">
226: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
227: <h3>This LON-CAPA server is temporarily not available for login</h3>
228: <p>Please attempt to login to one of the following servers:</p>$spares
229: </body>
230: </html>
231: ENDTROUBLE
232: return OK;
233: }
234:
235: # ----------------------------------------------- Apparently we are in business
236: $servadm=~s/\,/\<br \/\>/g;
237:
238: # --------------------------------------------------- Print login screen header
239: $r->print(<<ENDHEADER);
240: <html>
241: <head>
242: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
243: <title>The LearningOnline Network with CAPA Login</title>
244: </head>
245: ENDHEADER
246: # ---------------------------------------------------- Serve out DES JavaScript
247: {
248: my $jsh=Apache::File->new($include."/londes.js");
249: $r->print(<$jsh>);
250: }
251:
252: # ----------------------------------------------------------- Front page design
253: my $pgbg=
254: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
255: my $font=
256: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
257: my $link=
258: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
259: my $vlink=
260: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
261: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
262: my $mainbg=
263: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
264: my $sidebg=
265: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
266: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
267: my $img=&Apache::loncommon::designparm('login.img',$domain);
268: my $domainlogo=&Apache::loncommon::domainlogo($domain);
269: my $showadminmail=&Apache::loncommon::designparm('login.adminmail', $domain);
270: my $showcoursecat =
271: &Apache::loncommon::designparm('login.coursecatalog',$domain);
272:
273:
274: # ----------------------------------------------------------------------- Texts
275:
276: my %lt=&Apache::lonlocal::texthash(
277: 'un' => 'Username',
278: 'pw' => 'Password',
279: 'dom' => 'Domain',
280: 'perc' => 'percent',
281: 'load' => 'Load',
282: 'userload' => 'User Load',
283: 'about' => 'About LON-CAPA',
284: 'access' => 'Accessibility Options',
285: 'catalog' => 'Course Catalog',
286: 'auth' => 'userauthentication.gif',
287: 'log' => 'Log in',
288: 'help' => 'Log-in Help',
289: 'serv' => 'Server',
290: 'servadm' => 'Server Administration',
291: 'helpdesk' => 'Contact Helpdesk',
292: 'forgotpw' => 'Forgot password?');
293: # -------------------------------------------------- Change password field name
294: my $now=time;
295: my $forgotpw = &forgotpwdisplay(%lt);
296: my $loginhelp = &loginhelpdisplay(%lt);
297: # ---------------------------------------------------------- Serve rest of page
298: $r->print(<<ENDSCRIPT);
299:
300: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
301: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
302:
303: <script language="JavaScript">
304: function send()
305: {
306: this.document.server.elements.uname.value
307: =this.document.client.elements.uname.value;
308:
309: this.document.server.elements.udom.value
310: =this.document.client.elements.udom.value;
311:
312: this.document.server.elements.imagesuppress.value
313: =this.document.client.elements.imagesuppress.checked;
314:
315: this.document.server.elements.embedsuppress.value
316: =this.document.client.elements.embedsuppress.checked;
317:
318: this.document.server.elements.appletsuppress.value
319: =this.document.client.elements.appletsuppress.checked;
320:
321: this.document.server.elements.fontenhance.value
322: =this.document.client.elements.fontenhance.checked;
323:
324: this.document.server.elements.blackwhite.value
325: =this.document.client.elements.blackwhite.checked;
326:
327: this.document.server.elements.remember.value
328: =this.document.client.elements.remember.checked;
329:
330: uextkey=this.document.client.elements.uextkey.value;
331: lextkey=this.document.client.elements.lextkey.value;
332: initkeys();
333:
334: this.document.server.elements.upass0.value
335: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
336: this.document.server.elements.upass1.value
337: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
338: this.document.server.elements.upass2.value
339: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
340:
341: this.document.client.elements.uname.value='';
342: this.document.client.elements.upass$now.value='';
343:
344: this.document.server.submit();
345: return false;
346: }
347: </script>
348: ENDSCRIPT
349:
350: if ($fullgraph) {
351: $r->print(
352: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
353: }
354:
355: $r->print(<<ENDSERVERFORM);
356: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
357: <input type="hidden" name="logtoken" value="$logtoken" />
358: <input type="hidden" name="serverid" value="$lonhost" />
359: <input type="hidden" name="interface" value="$env{'form.interface'}" />
360: <input type="hidden" name="uname" value="" />
361: <input type="hidden" name="upass0" value="" />
362: <input type="hidden" name="upass1" value="" />
363: <input type="hidden" name="upass2" value="" />
364: <input type="hidden" name="udom" value="" />
365: <input type="hidden" name="imagesuppress" value="" />
366: <input type="hidden" name="appletsuppress" value="" />
367: <input type="hidden" name="embedsuppress" value="" />
368: <input type="hidden" name="fontenhance" value="" />
369: <input type="hidden" name="blackwhite" value="" />
370: <input type="hidden" name="remember" value="" />
371: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
372: <input type="hidden" name="localres" value="$env{'form.localres'}" />
373: </form>
374: ENDSERVERFORM
375: my $coursecatalog;
376: if (($showcoursecat eq '') || ($showcoursecat)) {
377: $coursecatalog = &coursecatalog_link($lt{'catalog'});
378: }
379: if ($fullgraph) { $r->print(<<ENDTOP);
380: <!-- The LON-CAPA Header -->
381: <tr>
382:
383: <!-- Row 1 Columns 2-4 -->
384: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
385: </tr>
386:
387: <!-- The gray bar that starts the two table frames -->
388: <tr>
389:
390: <!-- Row 2 Column 1 -->
391: <td width=182 height=27 bgcolor="$sidebg"> </td>
392:
393: <!-- Row 2 Column 2 -->
394: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
395:
396: <!-- Row 2 Column 3 -->
397: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
398:
399: <!-- Row 2 Column 4 -->
400: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
401: </tr>
402: <tr>
403:
404: <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
405: <!-- Row 3 Column 1 -->
406: <td valign="top" height="60" align="left" bgcolor="$sidebg">
407: <table cellpadding="0" cellspacing="2" border="0">
408: <tr>
409: <td> </td>
410: <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
411: </tr>
412: <tr>
413: <td> </td>
414: <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
415: </tr>$coursecatalog
416: <tr>
417: <td colspan="2"> </td>
418: </tr>
419: </table>
420: </td>
421: <!-- The shaded space between the two main columns -->
422: <!-- Row 3 Column 2 -->
423: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
424:
425: <!-- The right main column holding the large LON-CAPA logo-->
426: <!-- Rows 3-4 Column 3 -->
427: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
428: <center>
429: <img src="$logo" alt="" />
430: </center>
431: </td>
432:
433: <!-- Row 3 Column 4 -->
434: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
435: </tr>
436: <tr>
437:
438: <!-- The entry form -->
439: <!-- Row 4 Column 1 -->
440: <td align="center" valign="middle" bgcolor="$sidebg">
441: ENDTOP
442: } else {
443: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
444: }
445: $r->print('<form name="client" onsubmit="return(send())">');
446: unless ($fullgraph) {
447: $r->print(<<ENDACCESSOPTIONS);
448: <h3>Select Accessibility Options</h3>
449: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
450: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
451: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
452: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
453: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
454: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
455: ENDACCESSOPTIONS
456: } else {
457: $r->print(<<ENDNOOPT);
458: <input type="hidden" name="imagesuppress" value="" />
459: <input type="hidden" name="embedsuppress" value="" />
460: <input type="hidden" name="appletsuppress" value="" />
461: <input type="hidden" name="fontenhance" value="" />
462: <input type="hidden" name="blackwhite" value="" />
463: <input type="hidden" name="remember" value="" />
464: ENDNOOPT
465: }
466: $r->print(<<ENDLOGIN);
467: <input type="hidden" name="lextkey" value="$lextkey">
468: <input type="hidden" name="uextkey" value="$uextkey">
469:
470: <!-- Start the sub-table for text and input alignment -->
471: <table border=0 cellspacing=0 cellpadding=0>
472: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
473: <tr>
474: <td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
475: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
476: </tr>
477: <tr>
478: <td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
479: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
480: </tr>
481: <tr>
482: <td bgcolor="$mainbg"><font size=-1><b> <label for="udom">$lt{'dom'}</label>:</b></font></td>
483: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
484: </tr>
485: <tr>
486: <td bgcolor="$mainbg"> </td>
487: <td bgcolor="$mainbg" valign="bottom" align="center">
488: <br />
489: <input type="submit" value="$lt{'log'}" />
490: </td>
491: </tr>
492: <tr>
493: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
494: $loginhelp
495: $forgotpw
496: </td>
497: </tr>
498: </table>
499: <!-- End sub-table -->
500: </form>
501: ENDLOGIN
502: if ($fullgraph) {
503: my $helpdeskscript;
504: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
505: $version,$authdomain,\$helpdeskscript);
506: $r->print(<<ENDDOCUMENT);
507: </td>
508:
509: <!-- Row 4 Column 2 -->
510: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
511:
512: <!-- Row 4 Column 3 -->
513: <td bgcolor="$mainbg">$announcements</td>
514:
515: <!-- Row 4 Column 4 -->
516: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
517: </tr>
518: <tr>
519:
520: <!-- Row 5 Column 1 -->
521: <td bgcolor="$sidebg" valign="middle" align="left">
522: <br />
523: <table border=0 cellspacing=0 cellpadding=0>
524: <tr>
525: <td bgcolor="$sidebg" align="left" valign="top">
526: <small><b> $lt{'dom'}: </b></small>
527: </td>
528: <td bgcolor="$sidebg" align="left" valign="top">
529: <small><tt> $domain</tt></small>
530: </td>
531: </tr>
532: <tr>
533: <td bgcolor="$sidebg" align="left" valign="top">
534: <small><b> $lt{'serv'}: </b></small>
535: </td>
536: <td bgcolor="$sidebg" align="left" valign="top">
537: <small><tt> $lonhost ($role)</tt></small>
538: </td>
539: </tr>
540: <tr>
541: <td bgcolor="$sidebg" align="left" valign="top">
542: <small><b> $lt{'load'}: </b></small>
543: </td>
544: <td bgcolor="$sidebg" align="left" valign="top">
545: <small><tt> $loadpercent $lt{'perc'}</tt></small>
546: </td>
547: </tr>
548: <tr>
549: <td bgcolor="$sidebg" align="left" valign="top">
550: <small><b> $lt{'userload'}: </b></small>
551: </td>
552: <td bgcolor="$sidebg" align="left" valign="top">
553: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
554: </td>
555: </tr>
556: </table>
557: <br />
558: $contactblock
559: </td>
560:
561: <!-- Row 5 Column 2 -->
562: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
563:
564: <!-- Row 5 Column 3 -->
565: <td width="100%" valign="bottom" bgcolor="$mainbg">
566: $domainlogo
567: </td>
568:
569: <!-- Row 5 Column 4 -->
570: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
571: </tr>
572: <tr>
573:
574: <!-- Row 6 Column 1 -->
575: <td bgcolor="$sidebg"> </td>
576:
577: <!-- Row 6 Column 2 -->
578: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
579:
580: <!-- Row 6 Column 3 -->
581: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
582:
583: <!-- Row 6 Column 4 -->
584: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
585: </tr>
586: </table>
587:
588: <script type="text/javascript">
589: // the if prevents the script error if the browser can not handle this
590: if ( document.client.uname ) { document.client.uname.focus(); }
591: </script>
592: $helpdeskscript
593:
594: ENDDOCUMENT
595: }
596: $r->print('</body></html>');
597: return OK;
598: }
599:
600: sub contactdisplay {
601: my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
602: my $contactblock;
603: my $showhelpdesk = 0;
604: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
605: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
606: $showhelpdesk = 1;
607: }
608: if ($servadm && $showadminmail) {
609: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
610: '<tt> '.$servadm.'</tt><br /> <br />';
611: }
612: if ($showhelpdesk) {
613: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
614: my $thisurl = &escape('/adm/login');
615: $$helpdeskscript = <<"ENDSCRIPT";
616: <script type="text/javascript">
617: function helpdesk() {
618: var codedom = document.client.udom.value;
619: if (codedom == '') {
620: codedom = "$authdomain";
621: }
622: var querystr = "origurl=$thisurl&codedom="+codedom;
623: document.location.href = "/adm/helpdesk?"+querystr;
624: return;
625: }
626: </script>
627: ENDSCRIPT
628: }
629: $contactblock .= <<"ENDBLOCK";
630: $version
631: ENDBLOCK
632: return $contactblock;
633: }
634:
635: sub forgotpwdisplay {
636: my (%lt) = @_;
637: my $prompt_for_resetpw = 1;
638: if ($prompt_for_resetpw) {
639: return '<br /> <a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
640: }
641: return;
642: }
643:
644: sub loginhelpdisplay {
645: my (%lt) = @_;
646: my $login_help = 1;
647: if ($login_help) {
648: return ' <a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
649: }
650: return;
651: }
652:
653: sub coursecatalog_link {
654: my ($linkname) = @_;
655: return <<"END";
656: <tr>
657: <td> </td>
658: <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
659: </tr>
660: END
661: }
662:
663: 1;
664: __END__
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