1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.76 2006/07/24 17:25:48 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:
44: sub handler {
45: my $r = shift;
46:
47: &Apache::loncommon::get_unprocessed_cgi
48: ($ENV{'QUERY_STRING'}.'&'.$env{'request.querystring'},
49: ['interface','username','domain','firsturl','localpath','localres',
50: 'token']);
51:
52: # -- check if they are a migrating user
53: if (defined($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 $handle=$lonid->value;
77: $handle=~s/\W//g;
78: my $lonidsdir=$r->dir_config('lonIDsDir');
79: if (-e "$lonidsdir/$handle.id") {
80: # Is there an existing token file?
81: if ($handle=~/^publicuser\_/) {
82: # For "public user" - remove it, we apparently really want to login
83: unlink("$lonidsdir/$handle.id");
84: } elsif ($handle ne '') {
85: # Indeed, a valid token is found
86: my $start_page =
87: &Apache::loncommon::start_page('Already logged in');
88: my $end_page =
89: &Apache::loncommon::end_page();
90: $r->print(<<ENDFAILED);
91: $start_page
92: <h1>You are already logged in</h1>
93: <p>Please either <a href="/adm/roles">continue the current session</a> or
94: <a href="/adm/logout">logout</a>.</p>
95: <p>
96: <a href="/adm/loginproblems.html">Problems?</a></p>
97: $end_page
98: ENDFAILED
99: return OK;
100: }
101: }
102: }
103:
104: # ---------------------------------------------------- No valid token, continue
105:
106: # ---------------------------- Not possible to really login to domain "public"
107: if ($env{'form.domain'} eq 'public') {
108: $env{'form.domain'}='';
109: $env{'form.username'}='';
110: }
111: # ----------------------------------------------------------- Process Interface
112: $env{'form.interface'}=~s/\W//g;
113:
114: my $textbrowsers=$r->dir_config('lonTextBrowsers');
115: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
116:
117: foreach (split(/\:/,$textbrowsers)) {
118: if ($httpbrowser=~/$_/i) {
119: $env{'form.interface'}='textual';
120: }
121: }
122:
123: my $fullgraph=($env{'form.interface'} ne 'textual');
124: my $port_to_use=$r->dir_config('lonhttpdPort');
125: if (!defined($port_to_use)) {
126: $port_to_use='8080';
127: }
128: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
129: $r->dir_config('lonIconsURL');
130: my $domain = $r->dir_config('lonDefDomain');
131: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
132: foreach my $posdom (&Apache::lonnet::current_machine_domains()) {
133: if (lc($posdom) eq lc($testdomain)) { $domain=$posdom; }
134: }
135: if (($env{'form.domain'}) &&
136: ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
137: $domain=$env{'form.domain'};
138: }
139: my $role = $r->dir_config('lonRole');
140: my $loadlim = $r->dir_config('lonLoadLim');
141: my $servadm = $r->dir_config('lonAdmEMail');
142: my $sysadm = $r->dir_config('lonSysEMail');
143: my $lonhost = $r->dir_config('lonHostID');
144: my $tabdir = $r->dir_config('lonTabDir');
145: my $include = $r->dir_config('lonIncludes');
146: my $expire = $r->dir_config('lonExpire');
147: my $version = $r->dir_config('lonVersion');
148: my $host_name = $Apache::lonnet::hostname{$lonhost};
149:
150: # --------------------------------------------- Default values for login fields
151:
152: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
153: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
154:
155: # ---------------------------------------------------------- Determine own load
156: my $loadavg;
157: {
158: my $loadfile=Apache::File->new('/proc/loadavg');
159: $loadavg=<$loadfile>;
160: }
161: $loadavg =~ s/\s.*//g;
162: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
163: my $userloadpercent=&Apache::lonnet::userload();
164:
165: # ------------------------------------------------------- Do the load balancing
166: my $otherserver='http://'.$host_name;
167: my $firsturl=
168: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
169: # ---------------------------------------- Are we access server and overloaded?
170: if (($role eq 'access') &&
171: (($userloadpercent>100.0)||($loadpercent>100.0))) {
172: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
173: if ($unloaded) { $otherserver=$unloaded; }
174: }
175:
176: # ----------------------------------------------------------- Get announcements
177: my $announcements=&Apache::lonnet::getannounce();
178: # -------------------------------------------------------- Set login parameters
179:
180: my @hexstr=('0','1','2','3','4','5','6','7',
181: '8','9','a','b','c','d','e','f');
182: my $lkey='';
183: for (0..7) {
184: $lkey.=$hexstr[rand(15)];
185: }
186:
187: my $ukey='';
188: for (0..7) {
189: $ukey.=$hexstr[rand(15)];
190: }
191:
192: my $lextkey=hex($lkey);
193: if ($lextkey>2147483647) { $lextkey-=4294967296; }
194:
195: my $uextkey=hex($ukey);
196: if ($uextkey>2147483647) { $uextkey-=4294967296; }
197:
198: # -------------------------------------------------------- Store away log token
199: my $logtoken=Apache::lonnet::reply(
200: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
201: $lonhost);
202:
203: # ------------------- If we cannot talk to ourselves, we are in serious trouble
204:
205: if ($logtoken eq 'con_lost') {
206: my $spares='';
207: my $last;
208: foreach my $hostid (sort
209: {
210: $Apache::lonnet::hostname{$a} cmp
211: $Apache::lonnet::hostname{$b};
212: }
213: keys(%Apache::lonnet::spareid)) {
214: next if ($hostid eq $lonhost);
215: next if ($last eq $Apache::lonnet::hostname{$hostid});
216: $spares.='<br /><font size="+1"><a href="http://'.
217: $Apache::lonnet::hostname{$hostid}.
218: '/adm/login?domain='.$authdomain.'">'.
219: $Apache::lonnet::hostname{$hostid}.'</a>'.
220: ' (preferred)</font>'.$/;
221: $last=$Apache::lonnet::hostname{$hostid};
222: }
223: $spares.= '<br />';
224: foreach my $hostid (sort
225: {
226: $Apache::lonnet::hostname{$a} cmp
227: $Apache::lonnet::hostname{$b};
228: }
229: keys(%Apache::lonnet::hostname)) {
230: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
231: next if ($last eq $Apache::lonnet::hostname{$hostid});
232: $spares.='<br /><a href="http://'.
233: $Apache::lonnet::hostname{$hostid}.
234: '/adm/login?domain='.$authdomain.'">'.
235: $Apache::lonnet::hostname{$hostid}.'</a>';
236: $last=$Apache::lonnet::hostname{$hostid};
237: }
238: $r->print(<<ENDTROUBLE);
239: <html>
240: <head><title>The LearningOnline Network with CAPA</title></head>
241: <body bgcolor="#FFFFFF">
242: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
243: <h3>This LON-CAPA server is temporarily not available for login</h3>
244: <p>Please attempt to login to one of the following servers:</p>$spares
245: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
246: </body>
247: </html>
248: ENDTROUBLE
249: return OK;
250: }
251:
252: # ----------------------------------------------- Apparently we are in business
253:
254: my $domainlogo=&Apache::loncommon::domainlogo($domain);
255: $servadm=~s/\,/\<br \/\>/g;
256: $sysadm=~s/\,/\<br \/\>/g;
257:
258: # --------------------------------------------------- Print login screen header
259: $r->print(<<ENDHEADER);
260: <html>
261: <head>
262: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
263: <title>The LearningOnline Network with CAPA Login</title>
264: </head>
265: ENDHEADER
266: # ---------------------------------------------------- Serve out DES JavaScript
267: {
268: my $jsh=Apache::File->new($include."/londes.js");
269: $r->print(<$jsh>);
270: }
271:
272: # ----------------------------------------------------------- Front page design
273: my $pgbg=
274: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
275: my $font=
276: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
277: my $link=
278: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
279: my $vlink=
280: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
281: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
282: my $mainbg=
283: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
284: my $sidebg=
285: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
286: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
287: my $img=&Apache::loncommon::designparm('login.img',$domain);
288:
289: # ----------------------------------------------------------------------- Texts
290:
291: my %lt=&Apache::lonlocal::texthash(
292: 'un' => 'Username',
293: 'pw' => 'Password',
294: 'dom' => 'Domain',
295: 'perc' => 'percent',
296: 'load' => 'Load',
297: 'userload' => 'User Load',
298: 'about' => 'aboutlon.gif',
299: 'access' => 'accessbutton.gif',
300: 'auth' => 'userauthentication.gif',
301: 'log' => 'Log in',
302: 'help' => 'Help',
303: 'serv' => 'Server',
304: 'servadm' => 'Server Administration',
305: 'sysadm' => 'System Administration',
306: 'helpdesk' => 'Contact Helpdesk');
307: # -------------------------------------------------- Change password field name
308: my $now=time;
309: # ---------------------------------------------------------- Serve rest of page
310: $r->print(<<ENDSCRIPT);
311:
312: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
313: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
314:
315: <script language="JavaScript">
316: function send()
317: {
318: this.document.server.elements.uname.value
319: =this.document.client.elements.uname.value;
320:
321: this.document.server.elements.udom.value
322: =this.document.client.elements.udom.value;
323:
324: this.document.server.elements.imagesuppress.value
325: =this.document.client.elements.imagesuppress.checked;
326:
327: this.document.server.elements.embedsuppress.value
328: =this.document.client.elements.embedsuppress.checked;
329:
330: this.document.server.elements.appletsuppress.value
331: =this.document.client.elements.appletsuppress.checked;
332:
333: this.document.server.elements.fontenhance.value
334: =this.document.client.elements.fontenhance.checked;
335:
336: this.document.server.elements.blackwhite.value
337: =this.document.client.elements.blackwhite.checked;
338:
339: this.document.server.elements.remember.value
340: =this.document.client.elements.remember.checked;
341:
342: uextkey=this.document.client.elements.uextkey.value;
343: lextkey=this.document.client.elements.lextkey.value;
344: initkeys();
345:
346: this.document.server.elements.upass0.value
347: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
348: this.document.server.elements.upass1.value
349: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
350: this.document.server.elements.upass2.value
351: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
352:
353: this.document.client.elements.uname.value='';
354: this.document.client.elements.upass$now.value='';
355:
356: this.document.server.submit();
357: return false;
358: }
359: </script>
360: ENDSCRIPT
361:
362: if ($fullgraph) {
363: $r->print(
364: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
365: }
366:
367: $r->print(<<ENDSERVERFORM);
368: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
369: <input type="hidden" name="logtoken" value="$logtoken" />
370: <input type="hidden" name="serverid" value="$lonhost" />
371: <input type="hidden" name="interface" value="$env{'form.interface'}" />
372: <input type="hidden" name="uname" value="" />
373: <input type="hidden" name="upass0" value="" />
374: <input type="hidden" name="upass1" value="" />
375: <input type="hidden" name="upass2" value="" />
376: <input type="hidden" name="udom" value="" />
377: <input type="hidden" name="imagesuppress" value="" />
378: <input type="hidden" name="appletsuppress" value="" />
379: <input type="hidden" name="embedsuppress" value="" />
380: <input type="hidden" name="fontenhance" value="" />
381: <input type="hidden" name="blackwhite" value="" />
382: <input type="hidden" name="remember" value="" />
383: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
384: <input type="hidden" name="localres" value="$env{'form.localres'}" />
385: </form>
386: ENDSERVERFORM
387: if ($fullgraph) { $r->print(<<ENDTOP);
388: <!-- The LON-CAPA Header -->
389: <tr>
390:
391: <!-- Row 1 Columns 2-4 -->
392: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
393: </tr>
394:
395: <!-- The gray bar that starts the two table frames -->
396: <tr>
397:
398: <!-- Row 2 Column 1 -->
399: <td width=182 height=27 bgcolor="$sidebg"> </td>
400:
401: <!-- Row 2 Column 2 -->
402: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
403:
404: <!-- Row 2 Column 3 -->
405: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
406:
407: <!-- Row 2 Column 4 -->
408: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
409: </tr>
410: <tr>
411:
412: <!-- A cell that will hold the 'access' and 'about' buttons -->
413: <!-- Row 3 Column 1 -->
414: <td valign="top" height=60 align="center" bgcolor="$sidebg">
415: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
416: <br />
417: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
418: </td>
419:
420: <!-- The shaded space between the two main columns -->
421: <!-- Row 3 Column 2 -->
422: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
423:
424: <!-- The right main column holding the large LON-CAPA logo-->
425: <!-- Rows 3-4 Column 3 -->
426: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
427: <center>
428: <img src="$logo" alt="" />
429: </center>
430: </td>
431:
432: <!-- Row 3 Column 4 -->
433: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
434: </tr>
435: <tr>
436:
437: <!-- The entry form -->
438: <!-- Row 4 Column 1 -->
439: <td align="center" valign="middle" bgcolor="$sidebg">
440: ENDTOP
441: } else {
442: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
443: }
444: $r->print('<form name="client" onsubmit="return(send())">');
445: unless ($fullgraph) {
446: $r->print(<<ENDACCESSOPTIONS);
447: <h3>Select Accessibility Options</h3>
448: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
449: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
450: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
451: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
452: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
453: <p>If you have accessibility needs that are not addressed by this interface,
454: please
455: contact the system administrator at <tt>$sysadm</tt>.</p><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> $lt{'un'}:</b></font></td>
477: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
478: </tr>
479: <tr>
480: <td bgcolor="$mainbg"><font size=-1><b> $lt{'pw'}:</b></font></td>
481: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
482: </tr>
483: <tr>
484: <td bgcolor="$mainbg"><font size=-1><b> $lt{'dom'}:</b></font></td>
485: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
486: </tr>
487: <tr>
488: <td bgcolor="$mainbg"> <a href="/adm/loginproblems.html">$lt{'help'}</a></td>
489: <td bgcolor="$mainbg" valign="bottom" align="center">
490: <br />
491: <input type="submit" value="$lt{'log'}" />
492: </td>
493: </tr>
494: </table>
495: <!-- End sub-table -->
496: </form>
497: ENDLOGIN
498: if ($fullgraph) {
499: my $helpdeskscript;
500: my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
501: $r->print(<<ENDDOCUMENT);
502: </td>
503:
504: <!-- Row 4 Column 2 -->
505: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
506:
507: <!-- Row 4 Column 3 -->
508: <td bgcolor="$mainbg">$announcements</td>
509:
510: <!-- Row 4 Column 4 -->
511: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
512: </tr>
513: <tr>
514:
515: <!-- Row 5 Column 1 -->
516: <td bgcolor="$sidebg" valign="middle" align="left">
517: <br />
518: <table border=0 cellspacing=0 cellpadding=0>
519: <tr>
520: <td bgcolor="$sidebg" align="left" valign="top">
521: <small><b> $lt{'dom'}: </b></small>
522: </td>
523: <td bgcolor="$sidebg" align="left" valign="top">
524: <small><tt> $domain</tt></small>
525: </td>
526: </tr>
527: <tr>
528: <td bgcolor="$sidebg" align="left" valign="top">
529: <small><b> $lt{'serv'}: </b></small>
530: </td>
531: <td bgcolor="$sidebg" align="left" valign="top">
532: <small><tt> $lonhost ($role)</tt></small>
533: </td>
534: </tr>
535: <tr>
536: <td bgcolor="$sidebg" align="left" valign="top">
537: <small><b> $lt{'load'}: </b></small>
538: </td>
539: <td bgcolor="$sidebg" align="left" valign="top">
540: <small><tt> $loadpercent $lt{'perc'}</tt></small>
541: </td>
542: </tr>
543: <tr>
544: <td bgcolor="$sidebg" align="left" valign="top">
545: <small><b> $lt{'userload'}: </b></small>
546: </td>
547: <td bgcolor="$sidebg" align="left" valign="top">
548: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
549: </td>
550: </tr>
551: </table>
552: <br />
553: $contactblock
554: </td>
555:
556: <!-- Row 5 Column 2 -->
557: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
558:
559: <!-- Row 5 Column 3 -->
560: <td width="100%" valign="bottom" bgcolor="$mainbg">
561: $domainlogo
562: </td>
563:
564: <!-- Row 5 Column 4 -->
565: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
566: </tr>
567: <tr>
568:
569: <!-- Row 6 Column 1 -->
570: <td bgcolor="$sidebg"> </td>
571:
572: <!-- Row 6 Column 2 -->
573: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
574:
575: <!-- Row 6 Column 3 -->
576: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
577:
578: <!-- Row 6 Column 4 -->
579: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
580: </tr>
581: </table>
582:
583: <script type="text/javascript">
584: // the if prevents the script error if the browser can not handle this
585: if ( document.client.uname ) { document.client.uname.focus(); }
586: </script>
587: $helpdeskscript
588:
589: ENDDOCUMENT
590: }
591: $r->print('</body></html>');
592: return OK;
593: }
594:
595: sub contactdisplay {
596: my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
597: my $contactblock;
598: my $showsysadm = 1;
599: my $showservadm = 1;
600: my $showhelpdesk = 0;
601: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
602: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
603: $showhelpdesk = 1;
604: }
605: if ($showsysadm) {
606: $contactblock .= '<b> '.$$lt{'sysadm'}.':</b><br />'.
607: '<tt> '.$sysadm.'</tt><br />';
608: }
609: if ($showservadm) {
610: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
611: '<tt> '.$servadm.'</tt><br /> <br />';
612: }
613: if ($showhelpdesk) {
614: $contactblock .= '<b> <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
615: my $thisurl = &escape('/adm/login');
616: $$helpdeskscript = <<"ENDSCRIPT";
617: <script type="text/javascript">
618: function helpdesk() {
619: var codedom = document.client.udom.value;
620: if (codedom == '') {
621: codedom = "$authdomain";
622: }
623: var querystr = "origurl=$thisurl&codedom="+codedom;
624: document.location.href = "/adm/helpdesk?"+querystr;
625: return;
626: }
627: </script>
628: ENDSCRIPT
629: }
630: $contactblock .= <<"ENDBLOCK";
631: $version
632: ENDBLOCK
633: return $contactblock;
634: }
635:
636:
637: 1;
638: __END__
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