1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.99 2008/01/24 14:30:28 bisitz 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: # ----------------------------------------------------------- Front page design
239: my $pgbg=
240: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
241: my $font=
242: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
243: my $link=
244: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
245: my $vlink=
246: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
247: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
248: my $mainbg=
249: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
250: my $sidebg=
251: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
252: my $textcol =
253: ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');
254: my $bgcol =
255: ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');
256: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
257: my $img=&Apache::loncommon::designparm('login.img',$domain);
258: my $domainlogo=&Apache::loncommon::domainlogo($domain);
259: my $login=&Apache::loncommon::designparm('login.login',$domain);
260: if ($login eq '') {
261: $login = $iconpath.'/'.&mt('userauthentication.gif');
262: }
263: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
264: my $showcoursecat =
265: &Apache::loncommon::designparm('login.coursecatalog',$domain);
266: my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
267: my $now=time;
268: my $js = (<<ENDSCRIPT);
269:
270: <script language="JavaScript">
271: function send()
272: {
273: this.document.server.elements.uname.value
274: =this.document.client.elements.uname.value;
275:
276: this.document.server.elements.udom.value
277: =this.document.client.elements.udom.value;
278:
279: this.document.server.elements.imagesuppress.value
280: =this.document.client.elements.imagesuppress.checked;
281:
282: this.document.server.elements.embedsuppress.value
283: =this.document.client.elements.embedsuppress.checked;
284:
285: this.document.server.elements.appletsuppress.value
286: =this.document.client.elements.appletsuppress.checked;
287:
288: this.document.server.elements.fontenhance.value
289: =this.document.client.elements.fontenhance.checked;
290:
291: this.document.server.elements.blackwhite.value
292: =this.document.client.elements.blackwhite.checked;
293:
294: this.document.server.elements.remember.value
295: =this.document.client.elements.remember.checked;
296:
297: uextkey=this.document.client.elements.uextkey.value;
298: lextkey=this.document.client.elements.lextkey.value;
299: initkeys();
300:
301: this.document.server.elements.upass0.value
302: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
303: this.document.server.elements.upass1.value
304: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
305: this.document.server.elements.upass2.value
306: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
307:
308: this.document.client.elements.uname.value='';
309: this.document.client.elements.upass$now.value='';
310:
311: this.document.server.submit();
312: return false;
313: }
314: </script>
315:
316: ENDSCRIPT
317:
318: # --------------------------------------------------- Print login screen header
319:
320: my %add_entries = (topmargin => "0",
321: leftmargin => "0",
322: marginheight => "0",
323: marginwidth => "0",
324: bgcolor => "$pgbg",
325: text => "$font",
326: link => "$link",
327: vlink => "$vlink",
328: alink => "$alink",);
329:
330: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
331: { 'redirect' => [$expire,'/adm/roles'],
332: 'add_entries' => \%add_entries,
333: 'only_body' => 1,}));
334:
335: # ----------------------------------------------------------------------- Texts
336:
337: my %lt=&Apache::lonlocal::texthash(
338: 'un' => 'Username',
339: 'pw' => 'Password',
340: 'dom' => 'Domain',
341: 'perc' => 'percent',
342: 'load' => 'Load',
343: 'userload' => 'User Load',
344: 'about' => 'About LON-CAPA',
345: 'access' => 'Accessibility Options',
346: 'catalog' => 'Course Catalog',
347: 'log' => 'Log in',
348: 'help' => 'Log-in Help',
349: 'serv' => 'Server',
350: 'servadm' => 'Server Administration',
351: 'helpdesk' => 'Contact Helpdesk',
352: 'forgotpw' => 'Forgot password?',
353: 'options_headline' => 'Select Accessibility Options',
354: 'sprs_img' => 'Suppress rendering of images',
355: 'sprs_applet' => 'Suppress Java applets',
356: 'sprs_embed' => 'Suppress rendering of embedded multimedia',
357: 'sprs_font' => 'Increase font size',
358: 'sprs_blackwhite' => 'Switch to black and white mode',
359: 'remember' => 'Remember these settings for next login');
360: # -------------------------------------------------- Change password field name
361: my $forgotpw = &forgotpwdisplay(%lt);
362: my $loginhelp = &loginhelpdisplay(%lt);
363:
364: # ---------------------------------------------------- Serve out DES JavaScript
365: {
366: my $jsh=Apache::File->new($include."/londes.js");
367: $r->print(<$jsh>);
368: }
369: # ---------------------------------------------------------- Serve rest of page
370:
371: if ($fullgraph) {
372: $r->print(
373: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
374: }
375:
376: $r->print(<<ENDSERVERFORM);
377: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
378: <input type="hidden" name="logtoken" value="$logtoken" />
379: <input type="hidden" name="serverid" value="$lonhost" />
380: <input type="hidden" name="interface" value="$env{'form.interface'}" />
381: <input type="hidden" name="uname" value="" />
382: <input type="hidden" name="upass0" value="" />
383: <input type="hidden" name="upass1" value="" />
384: <input type="hidden" name="upass2" value="" />
385: <input type="hidden" name="udom" value="" />
386: <input type="hidden" name="imagesuppress" value="" />
387: <input type="hidden" name="appletsuppress" value="" />
388: <input type="hidden" name="embedsuppress" value="" />
389: <input type="hidden" name="fontenhance" value="" />
390: <input type="hidden" name="blackwhite" value="" />
391: <input type="hidden" name="remember" value="" />
392: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
393: <input type="hidden" name="localres" value="$env{'form.localres'}" />
394: </form>
395: ENDSERVERFORM
396: my $coursecatalog;
397: if (($showcoursecat eq '') || ($showcoursecat)) {
398: $coursecatalog = &coursecatalog_link($lt{'catalog'});
399: }
400: if ($fullgraph) { $r->print(<<ENDTOP);
401: <!-- The LON-CAPA Header -->
402: <tr>
403:
404: <!-- Row 1 Columns 2-4 -->
405: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
406: </tr>
407:
408: <!-- The gray bar that starts the two table frames -->
409: <tr>
410:
411: <!-- Row 2 Column 1 -->
412: <td width=182 height=27 bgcolor="$sidebg"> </td>
413:
414: <!-- Row 2 Column 2 -->
415: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
416:
417: <!-- Row 2 Column 3 -->
418: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
419:
420: <!-- Row 2 Column 4 -->
421: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
422: </tr>
423: <tr>
424:
425: <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
426: <!-- Row 3 Column 1 -->
427: <td valign="top" height="60" align="left" bgcolor="$sidebg">
428: <table cellpadding="0" cellspacing="2" border="0">
429: <tr>
430: <td> </td>
431: <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
432: </tr>
433: <tr>
434: <td> </td>
435: <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
436: </tr>$coursecatalog
437: <tr>
438: <td colspan="2"> </td>
439: </tr>
440: </table>
441: </td>
442: <!-- The shaded space between the two main columns -->
443: <!-- Row 3 Column 2 -->
444: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
445:
446: <!-- The right main column holding the large LON-CAPA logo-->
447: <!-- Rows 3-4 Column 3 -->
448: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
449: <center>
450: <img src="$logo" alt="" />
451: </center>
452: </td>
453:
454: <!-- Row 3 Column 4 -->
455: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
456: </tr>
457: <tr>
458:
459: <!-- The entry form -->
460: <!-- Row 4 Column 1 -->
461: <td align="center" valign="middle" bgcolor="$sidebg">
462: ENDTOP
463: } else {
464: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'
465: .'<h2>'.&mt('Text-based Interface Login').'</h2>'
466: .$announcements);
467: }
468: $r->print('<form name="client" onsubmit="return(send())">');
469: unless ($fullgraph) {
470: $r->print(<<ENDACCESSOPTIONS);
471: <h3>$lt{'options_headline'}</h3>
472: <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />
473: <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />
474: <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />
475: <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />
476: <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />
477: <br />
478: <input type="checkbox" name="remember" /> $lt{'remember'}<hr />
479: ENDACCESSOPTIONS
480: } else {
481: $r->print(<<ENDNOOPT);
482: <input type="hidden" name="imagesuppress" value="" />
483: <input type="hidden" name="embedsuppress" value="" />
484: <input type="hidden" name="appletsuppress" value="" />
485: <input type="hidden" name="fontenhance" value="" />
486: <input type="hidden" name="blackwhite" value="" />
487: <input type="hidden" name="remember" value="" />
488: ENDNOOPT
489: }
490: my $logintitle;
491: if ($loginheader eq 'text') {
492: $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2"> <b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';
493: } else {
494: $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.
495: &mt('User Authentication').'" /></td>';
496: }
497: $r->print(<<ENDLOGIN);
498: <input type="hidden" name="lextkey" value="$lextkey">
499: <input type="hidden" name="uextkey" value="$uextkey">
500:
501: <!-- Start the sub-table for text and input alignment -->
502: <table border=0 cellspacing=0 cellpadding=0>
503: <tr>$logintitle</tr>
504: <tr>
505: <td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
506: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
507: </tr>
508: <tr>
509: <td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
510: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
511: </tr>
512: <tr>
513: <td bgcolor="$mainbg"><font size=-1><b> <label for="udom">$lt{'dom'}</label>:</b></font></td>
514: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
515: </tr>
516: <tr>
517: <td bgcolor="$mainbg"> </td>
518: <td bgcolor="$mainbg" valign="bottom" align="center">
519: <br />
520: <input type="submit" value="$lt{'log'}" />
521: </td>
522: </tr>
523: <tr>
524: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
525: $loginhelp
526: $forgotpw
527: </td>
528: </tr>
529: </table>
530: <!-- End sub-table -->
531: </form>
532: ENDLOGIN
533: if ($fullgraph) {
534: my $helpdeskscript;
535: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
536: $version,$authdomain,\$helpdeskscript);
537: $r->print(<<ENDDOCUMENT);
538: </td>
539:
540: <!-- Row 4 Column 2 -->
541: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
542:
543: <!-- Row 4 Column 3 -->
544: <td bgcolor="$mainbg">$announcements</td>
545:
546: <!-- Row 4 Column 4 -->
547: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
548: </tr>
549: <tr>
550:
551: <!-- Row 5 Column 1 -->
552: <td bgcolor="$sidebg" valign="middle" align="left">
553: <br />
554: <table border=0 cellspacing=0 cellpadding=0>
555: <tr>
556: <td bgcolor="$sidebg" align="left" valign="top">
557: <small><b> $lt{'dom'}: </b></small>
558: </td>
559: <td bgcolor="$sidebg" align="left" valign="top">
560: <small><tt> $domain</tt></small>
561: </td>
562: </tr>
563: <tr>
564: <td bgcolor="$sidebg" align="left" valign="top">
565: <small><b> $lt{'serv'}: </b></small>
566: </td>
567: <td bgcolor="$sidebg" align="left" valign="top">
568: <small><tt> $lonhost ($role)</tt></small>
569: </td>
570: </tr>
571: <tr>
572: <td bgcolor="$sidebg" align="left" valign="top">
573: <small><b> $lt{'load'}: </b></small>
574: </td>
575: <td bgcolor="$sidebg" align="left" valign="top">
576: <small><tt> $loadpercent $lt{'perc'}</tt></small>
577: </td>
578: </tr>
579: <tr>
580: <td bgcolor="$sidebg" align="left" valign="top">
581: <small><b> $lt{'userload'}: </b></small>
582: </td>
583: <td bgcolor="$sidebg" align="left" valign="top">
584: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
585: </td>
586: </tr>
587: </table>
588: <br />
589: $contactblock
590: </td>
591:
592: <!-- Row 5 Column 2 -->
593: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
594:
595: <!-- Row 5 Column 3 -->
596: <td width="100%" valign="bottom" bgcolor="$mainbg">
597: $domainlogo
598: </td>
599:
600: <!-- Row 5 Column 4 -->
601: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
602: </tr>
603: <tr>
604:
605: <!-- Row 6 Column 1 -->
606: <td bgcolor="$sidebg"> </td>
607:
608: <!-- Row 6 Column 2 -->
609: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
610:
611: <!-- Row 6 Column 3 -->
612: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
613:
614: <!-- Row 6 Column 4 -->
615: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
616: </tr>
617: </table>
618:
619: <script type="text/javascript">
620: // the if prevents the script error if the browser can not handle this
621: if ( document.client.uname ) { document.client.uname.focus(); }
622: </script>
623: $helpdeskscript
624:
625: ENDDOCUMENT
626: }
627: my %endargs = ( 'noredirectlink' => 1, );
628: $r->print(&Apache::loncommon::end_page(\%endargs));
629: return OK;
630: }
631:
632: sub contactdisplay {
633: my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
634: my $contactblock;
635: my $showhelpdesk = 0;
636: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
637: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
638: $showhelpdesk = 1;
639: }
640: if ($servadm && $showadminmail) {
641: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
642: '<tt> '.$servadm.'</tt><br /> <br />';
643: }
644: if ($showhelpdesk) {
645: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
646: my $thisurl = &escape('/adm/login');
647: $$helpdeskscript = <<"ENDSCRIPT";
648: <script type="text/javascript">
649: function helpdesk() {
650: var codedom = document.client.udom.value;
651: if (codedom == '') {
652: codedom = "$authdomain";
653: }
654: var querystr = "origurl=$thisurl&codedom="+codedom;
655: document.location.href = "/adm/helpdesk?"+querystr;
656: return;
657: }
658: </script>
659: ENDSCRIPT
660: }
661: $contactblock .= <<"ENDBLOCK";
662: $version
663: ENDBLOCK
664: return $contactblock;
665: }
666:
667: sub forgotpwdisplay {
668: my (%lt) = @_;
669: my $prompt_for_resetpw = 1;
670: if ($prompt_for_resetpw) {
671: return '<br /> <a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
672: }
673: return;
674: }
675:
676: sub loginhelpdisplay {
677: my (%lt) = @_;
678: my $login_help = 1;
679: if ($login_help) {
680: return ' <a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
681: }
682: return;
683: }
684:
685: sub coursecatalog_link {
686: my ($linkname) = @_;
687: return <<"END";
688: <tr>
689: <td> </td>
690: <td><a href="/adm/coursecatalog"><b>$linkname</b></a></td>
691: </tr>
692: END
693: }
694:
695: 1;
696: __END__
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