1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.75 2006/05/30 12:45:24 www 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:
149: # --------------------------------------------- Default values for login fields
150:
151: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
152: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
153:
154: # ---------------------------------------------------------- Determine own load
155: my $loadavg;
156: {
157: my $loadfile=Apache::File->new('/proc/loadavg');
158: $loadavg=<$loadfile>;
159: }
160: $loadavg =~ s/\s.*//g;
161: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
162: my $userloadpercent=&Apache::lonnet::userload();
163:
164: # ------------------------------------------------------- Do the load balancing
165: my $otherserver='http://'.$ENV{'SERVER_NAME'};
166: my $firsturl=
167: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
168: # ---------------------------------------- Are we access server and overloaded?
169: if (($role eq 'access') &&
170: (($userloadpercent>100.0)||($loadpercent>100.0))) {
171: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
172: if ($unloaded) { $otherserver=$unloaded; }
173: }
174:
175: # ----------------------------------------------------------- Get announcements
176: my $announcements=&Apache::lonnet::getannounce();
177: # -------------------------------------------------------- Set login parameters
178:
179: my @hexstr=('0','1','2','3','4','5','6','7',
180: '8','9','a','b','c','d','e','f');
181: my $lkey='';
182: for (0..7) {
183: $lkey.=$hexstr[rand(15)];
184: }
185:
186: my $ukey='';
187: for (0..7) {
188: $ukey.=$hexstr[rand(15)];
189: }
190:
191: my $lextkey=hex($lkey);
192: if ($lextkey>2147483647) { $lextkey-=4294967296; }
193:
194: my $uextkey=hex($ukey);
195: if ($uextkey>2147483647) { $uextkey-=4294967296; }
196:
197: # -------------------------------------------------------- Store away log token
198: my $logtoken=Apache::lonnet::reply(
199: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
200: $lonhost);
201:
202: # ------------------- If we cannot talk to ourselves, we are in serious trouble
203:
204: if ($logtoken eq 'con_lost') {
205: my $spares='';
206: my $last;
207: foreach my $hostid (sort
208: {
209: $Apache::lonnet::hostname{$a} cmp
210: $Apache::lonnet::hostname{$b};
211: }
212: keys(%Apache::lonnet::spareid)) {
213: next if ($hostid eq $lonhost);
214: next if ($last eq $Apache::lonnet::hostname{$hostid});
215: $spares.='<br /><font size="+1"><a href="http://'.
216: $Apache::lonnet::hostname{$hostid}.
217: '/adm/login?domain='.$authdomain.'">'.
218: $Apache::lonnet::hostname{$hostid}.'</a>'.
219: ' (preferred)</font>'.$/;
220: $last=$Apache::lonnet::hostname{$hostid};
221: }
222: $spares.= '<br />';
223: foreach my $hostid (sort
224: {
225: $Apache::lonnet::hostname{$a} cmp
226: $Apache::lonnet::hostname{$b};
227: }
228: keys(%Apache::lonnet::hostname)) {
229: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
230: next if ($last eq $Apache::lonnet::hostname{$hostid});
231: $spares.='<br /><a href="http://'.
232: $Apache::lonnet::hostname{$hostid}.
233: '/adm/login?domain='.$authdomain.'">'.
234: $Apache::lonnet::hostname{$hostid}.'</a>';
235: $last=$Apache::lonnet::hostname{$hostid};
236: }
237: $r->print(<<ENDTROUBLE);
238: <html>
239: <head><title>The LearningOnline Network with CAPA</title></head>
240: <body bgcolor="#FFFFFF">
241: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
242: <h3>This LON-CAPA server is temporarily not available for login</h3>
243: <p>Please attempt to login to one of the following servers:</p>$spares
244: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
245: </body>
246: </html>
247: ENDTROUBLE
248: return OK;
249: }
250:
251: # ----------------------------------------------- Apparently we are in business
252:
253: my $domainlogo=&Apache::loncommon::domainlogo($domain);
254: $servadm=~s/\,/\<br \/\>/g;
255: $sysadm=~s/\,/\<br \/\>/g;
256:
257: # --------------------------------------------------- Print login screen header
258: $r->print(<<ENDHEADER);
259: <html>
260: <head>
261: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
262: <title>The LearningOnline Network with CAPA Login</title>
263: </head>
264: ENDHEADER
265: # ---------------------------------------------------- Serve out DES JavaScript
266: {
267: my $jsh=Apache::File->new($include."/londes.js");
268: $r->print(<$jsh>);
269: }
270:
271: # ----------------------------------------------------------- Front page design
272: my $pgbg=
273: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
274: my $font=
275: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
276: my $link=
277: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
278: my $vlink=
279: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
280: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
281: my $mainbg=
282: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
283: my $sidebg=
284: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
285: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
286: my $img=&Apache::loncommon::designparm('login.img',$domain);
287:
288: # ----------------------------------------------------------------------- Texts
289:
290: my %lt=&Apache::lonlocal::texthash(
291: 'un' => 'Username',
292: 'pw' => 'Password',
293: 'dom' => 'Domain',
294: 'perc' => 'percent',
295: 'load' => 'Load',
296: 'userload' => 'User Load',
297: 'about' => 'aboutlon.gif',
298: 'access' => 'accessbutton.gif',
299: 'auth' => 'userauthentication.gif',
300: 'log' => 'Log in',
301: 'help' => 'Help',
302: 'serv' => 'Server',
303: 'servadm' => 'Server Administration',
304: 'sysadm' => 'System Administration',
305: 'helpdesk' => 'Contact Helpdesk');
306: # -------------------------------------------------- Change password field name
307: my $now=time;
308: # ---------------------------------------------------------- Serve rest of page
309: $r->print(<<ENDSCRIPT);
310:
311: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
312: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
313:
314: <script language="JavaScript">
315: function send()
316: {
317: this.document.server.elements.uname.value
318: =this.document.client.elements.uname.value;
319:
320: this.document.server.elements.udom.value
321: =this.document.client.elements.udom.value;
322:
323: this.document.server.elements.imagesuppress.value
324: =this.document.client.elements.imagesuppress.checked;
325:
326: this.document.server.elements.embedsuppress.value
327: =this.document.client.elements.embedsuppress.checked;
328:
329: this.document.server.elements.appletsuppress.value
330: =this.document.client.elements.appletsuppress.checked;
331:
332: this.document.server.elements.fontenhance.value
333: =this.document.client.elements.fontenhance.checked;
334:
335: this.document.server.elements.blackwhite.value
336: =this.document.client.elements.blackwhite.checked;
337:
338: this.document.server.elements.remember.value
339: =this.document.client.elements.remember.checked;
340:
341: uextkey=this.document.client.elements.uextkey.value;
342: lextkey=this.document.client.elements.lextkey.value;
343: initkeys();
344:
345: this.document.server.elements.upass0.value
346: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
347: this.document.server.elements.upass1.value
348: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
349: this.document.server.elements.upass2.value
350: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
351:
352: this.document.client.elements.uname.value='';
353: this.document.client.elements.upass$now.value='';
354:
355: this.document.server.submit();
356: return false;
357: }
358: </script>
359: ENDSCRIPT
360:
361: if ($fullgraph) {
362: $r->print(
363: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
364: }
365:
366: $r->print(<<ENDSERVERFORM);
367: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
368: <input type="hidden" name="logtoken" value="$logtoken" />
369: <input type="hidden" name="serverid" value="$lonhost" />
370: <input type="hidden" name="interface" value="$env{'form.interface'}" />
371: <input type="hidden" name="uname" value="" />
372: <input type="hidden" name="upass0" value="" />
373: <input type="hidden" name="upass1" value="" />
374: <input type="hidden" name="upass2" value="" />
375: <input type="hidden" name="udom" value="" />
376: <input type="hidden" name="imagesuppress" value="" />
377: <input type="hidden" name="appletsuppress" value="" />
378: <input type="hidden" name="embedsuppress" value="" />
379: <input type="hidden" name="fontenhance" value="" />
380: <input type="hidden" name="blackwhite" value="" />
381: <input type="hidden" name="remember" value="" />
382: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
383: <input type="hidden" name="localres" value="$env{'form.localres'}" />
384: </form>
385: ENDSERVERFORM
386: if ($fullgraph) { $r->print(<<ENDTOP);
387: <!-- The LON-CAPA Header -->
388: <tr>
389:
390: <!-- Row 1 Columns 2-4 -->
391: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
392: </tr>
393:
394: <!-- The gray bar that starts the two table frames -->
395: <tr>
396:
397: <!-- Row 2 Column 1 -->
398: <td width=182 height=27 bgcolor="$sidebg"> </td>
399:
400: <!-- Row 2 Column 2 -->
401: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
402:
403: <!-- Row 2 Column 3 -->
404: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
405:
406: <!-- Row 2 Column 4 -->
407: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
408: </tr>
409: <tr>
410:
411: <!-- A cell that will hold the 'access' and 'about' buttons -->
412: <!-- Row 3 Column 1 -->
413: <td valign="top" height=60 align="center" bgcolor="$sidebg">
414: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
415: <br />
416: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
417: </td>
418:
419: <!-- The shaded space between the two main columns -->
420: <!-- Row 3 Column 2 -->
421: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
422:
423: <!-- The right main column holding the large LON-CAPA logo-->
424: <!-- Rows 3-4 Column 3 -->
425: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
426: <center>
427: <img src="$logo" alt="" />
428: </center>
429: </td>
430:
431: <!-- Row 3 Column 4 -->
432: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
433: </tr>
434: <tr>
435:
436: <!-- The entry form -->
437: <!-- Row 4 Column 1 -->
438: <td align="center" valign="middle" bgcolor="$sidebg">
439: ENDTOP
440: } else {
441: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
442: }
443: $r->print('<form name="client" onsubmit="return(send())">');
444: unless ($fullgraph) {
445: $r->print(<<ENDACCESSOPTIONS);
446: <h3>Select Accessibility Options</h3>
447: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
448: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
449: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
450: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
451: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
452: <p>If you have accessibility needs that are not addressed by this interface,
453: please
454: contact the system administrator at <tt>$sysadm</tt>.</p><br />
455: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
456: ENDACCESSOPTIONS
457: } else {
458: $r->print(<<ENDNOOPT);
459: <input type="hidden" name="imagesuppress" value="" />
460: <input type="hidden" name="embedsuppress" value="" />
461: <input type="hidden" name="appletsuppress" value="" />
462: <input type="hidden" name="fontenhance" value="" />
463: <input type="hidden" name="blackwhite" value="" />
464: <input type="hidden" name="remember" value="" />
465: ENDNOOPT
466: }
467: $r->print(<<ENDLOGIN);
468: <input type="hidden" name="lextkey" value="$lextkey">
469: <input type="hidden" name="uextkey" value="$uextkey">
470:
471: <!-- Start the sub-table for text and input alignment -->
472: <table border=0 cellspacing=0 cellpadding=0>
473: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
474: <tr>
475: <td bgcolor="$mainbg"><br /><font size=-1><b> $lt{'un'}:</b></font></td>
476: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
477: </tr>
478: <tr>
479: <td bgcolor="$mainbg"><font size=-1><b> $lt{'pw'}:</b></font></td>
480: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
481: </tr>
482: <tr>
483: <td bgcolor="$mainbg"><font size=-1><b> $lt{'dom'}:</b></font></td>
484: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
485: </tr>
486: <tr>
487: <td bgcolor="$mainbg"> <a href="/adm/loginproblems.html">$lt{'help'}</a></td>
488: <td bgcolor="$mainbg" valign="bottom" align="center">
489: <br />
490: <input type="submit" value="$lt{'log'}" />
491: </td>
492: </tr>
493: </table>
494: <!-- End sub-table -->
495: </form>
496: ENDLOGIN
497: if ($fullgraph) {
498: my $helpdeskscript;
499: my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
500: $r->print(<<ENDDOCUMENT);
501: </td>
502:
503: <!-- Row 4 Column 2 -->
504: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
505:
506: <!-- Row 4 Column 3 -->
507: <td bgcolor="$mainbg">$announcements</td>
508:
509: <!-- Row 4 Column 4 -->
510: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
511: </tr>
512: <tr>
513:
514: <!-- Row 5 Column 1 -->
515: <td bgcolor="$sidebg" valign="middle" align="left">
516: <br />
517: <table border=0 cellspacing=0 cellpadding=0>
518: <tr>
519: <td bgcolor="$sidebg" align="left" valign="top">
520: <small><b> $lt{'dom'}: </b></small>
521: </td>
522: <td bgcolor="$sidebg" align="left" valign="top">
523: <small><tt> $domain</tt></small>
524: </td>
525: </tr>
526: <tr>
527: <td bgcolor="$sidebg" align="left" valign="top">
528: <small><b> $lt{'serv'}: </b></small>
529: </td>
530: <td bgcolor="$sidebg" align="left" valign="top">
531: <small><tt> $lonhost ($role)</tt></small>
532: </td>
533: </tr>
534: <tr>
535: <td bgcolor="$sidebg" align="left" valign="top">
536: <small><b> $lt{'load'}: </b></small>
537: </td>
538: <td bgcolor="$sidebg" align="left" valign="top">
539: <small><tt> $loadpercent $lt{'perc'}</tt></small>
540: </td>
541: </tr>
542: <tr>
543: <td bgcolor="$sidebg" align="left" valign="top">
544: <small><b> $lt{'userload'}: </b></small>
545: </td>
546: <td bgcolor="$sidebg" align="left" valign="top">
547: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
548: </td>
549: </tr>
550: </table>
551: <br />
552: $contactblock
553: </td>
554:
555: <!-- Row 5 Column 2 -->
556: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
557:
558: <!-- Row 5 Column 3 -->
559: <td width="100%" valign="bottom" bgcolor="$mainbg">
560: $domainlogo
561: </td>
562:
563: <!-- Row 5 Column 4 -->
564: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
565: </tr>
566: <tr>
567:
568: <!-- Row 6 Column 1 -->
569: <td bgcolor="$sidebg"> </td>
570:
571: <!-- Row 6 Column 2 -->
572: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
573:
574: <!-- Row 6 Column 3 -->
575: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
576:
577: <!-- Row 6 Column 4 -->
578: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
579: </tr>
580: </table>
581:
582: <script type="text/javascript">
583: // the if prevents the script error if the browser can not handle this
584: if ( document.client.uname ) { document.client.uname.focus(); }
585: </script>
586: $helpdeskscript
587:
588: ENDDOCUMENT
589: }
590: $r->print('</body></html>');
591: return OK;
592: }
593:
594: sub contactdisplay {
595: my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
596: my $contactblock;
597: my $showsysadm = 1;
598: my $showservadm = 1;
599: my $showhelpdesk = 0;
600: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
601: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
602: $showhelpdesk = 1;
603: }
604: if ($showsysadm) {
605: $contactblock .= '<b> '.$$lt{'sysadm'}.':</b><br />'.
606: '<tt> '.$sysadm.'</tt><br />';
607: }
608: if ($showservadm) {
609: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
610: '<tt> '.$servadm.'</tt><br /> <br />';
611: }
612: if ($showhelpdesk) {
613: $contactblock .= '<b> <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
614: my $thisurl = &escape('/adm/login');
615: $$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:
636: 1;
637: __END__
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