1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.65 2005/06/07 02:14:28 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:
40: sub handler {
41: my $r = shift;
42: &Apache::loncommon::no_cache($r);
43: &Apache::lonlocal::get_language_handle($r);
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46: return OK if $r->header_only;
47:
48:
49: # Are we re-routing?
50: if (-e '/home/httpd/html/lon-status/reroute.txt') {
51: &Apache::lonauth::reroute($r);
52: return OK;
53: }
54:
55: # -------------------------------- Prevent users from attempting to login twice
56: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
57: my $lonid=$cookies{'lonID'};
58: my $cookie;
59: if ($lonid) {
60: my $handle=$lonid->value;
61: $handle=~s/\W//g;
62: my $lonidsdir=$r->dir_config('lonIDsDir');
63: if ((-e "$lonidsdir/$handle.id") && ($handle ne '')) {
64: # Indeed, a valid token is found
65: my $bodytag=&Apache::loncommon::bodytag('Already logged in');
66: $r->print(<<ENDFAILED);
67: <html>
68: <head>
69: <title>Already logged in</title>
70: </head>
71: $bodytag
72: <h1>You are already logged in</h1>
73: <p>Please either <a href="/adm/roles">continue the current session</a> or
74: <a href="/adm/logout">logout</a>.</p>
75: <p>
76: <a href="/adm/loginproblems.html">Problems?</a></p>
77: </body>
78: </html>
79: ENDFAILED
80: return OK;
81: }
82: }
83:
84: # ---------------------------------------------------- No valid token, continue
85:
86: &Apache::loncommon::get_unprocessed_cgi
87: ($ENV{'QUERY_STRING'}.'&'.$env{'request.querystring'},
88: ['interface','username','domain','firsturl','localpath','localres']);
89:
90:
91: # ----------------------------------------------------------- Process Interface
92: $env{'form.interface'}=~s/\W//g;
93:
94: my $textbrowsers=$r->dir_config('lonTextBrowsers');
95: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
96:
97: foreach (split(/\:/,$textbrowsers)) {
98: if ($httpbrowser=~/$_/i) {
99: $env{'form.interface'}='textual';
100: }
101: }
102:
103: my $fullgraph=($env{'form.interface'} ne 'textual');
104: my $port_to_use=$r->dir_config('lonhttpdPort');
105: if (!defined($port_to_use)) {
106: $port_to_use='8080';
107: }
108: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
109: $r->dir_config('lonIconsURL');
110: my $domain = $r->dir_config('lonDefDomain');
111: if (($env{'form.domain'}) &&
112: ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
113: $domain=$env{'form.domain'};
114: }
115: my $role = $r->dir_config('lonRole');
116: my $loadlim = $r->dir_config('lonLoadLim');
117: my $servadm = $r->dir_config('lonAdmEMail');
118: my $sysadm = $r->dir_config('lonSysEMail');
119: my $lonhost = $r->dir_config('lonHostID');
120: my $tabdir = $r->dir_config('lonTabDir');
121: my $include = $r->dir_config('lonIncludes');
122: my $expire = $r->dir_config('lonExpire');
123: my $version = $r->dir_config('lonVersion');
124:
125: # --------------------------------------------- Default values for login fields
126:
127: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
128: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
129:
130: # ---------------------------------------------------------- Determine own load
131: my $loadavg;
132: {
133: my $loadfile=Apache::File->new('/proc/loadavg');
134: $loadavg=<$loadfile>;
135: }
136: $loadavg =~ s/\s.*//g;
137: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
138: my $userloadpercent=&Apache::lonnet::userload();
139:
140: # ------------------------------------------------------- Do the load balancing
141: my $otherserver='http://'.$ENV{'SERVER_NAME'};
142: my $firsturl=
143: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
144: # ---------------------------------------- Are we access server and overloaded?
145: if (($role eq 'access') &&
146: (($userloadpercent>100.0)||($loadpercent>100.0))) {
147: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
148: if ($unloaded) { $otherserver=$unloaded; }
149: }
150:
151: # ----------------------------------------------------------- Get announcements
152: my $announcements=&Apache::lonnet::getannounce();
153: # -------------------------------------------------------- Set login parameters
154:
155: my @hexstr=('0','1','2','3','4','5','6','7',
156: '8','9','a','b','c','d','e','f');
157: my $lkey='';
158: for (0..7) {
159: $lkey.=$hexstr[rand(15)];
160: }
161:
162: my $ukey='';
163: for (0..7) {
164: $ukey.=$hexstr[rand(15)];
165: }
166:
167: my $lextkey=hex($lkey);
168: if ($lextkey>2147483647) { $lextkey-=4294967296; }
169:
170: my $uextkey=hex($ukey);
171: if ($uextkey>2147483647) { $uextkey-=4294967296; }
172:
173: # -------------------------------------------------------- Store away log token
174: my $logtoken=Apache::lonnet::reply(
175: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
176: $lonhost);
177:
178: # ------------------- If we cannot talk to ourselves, we are in serious trouble
179:
180: if ($logtoken eq 'con_lost') {
181: my $spares='';
182: my $last;
183: foreach my $hostid (sort
184: {
185: $Apache::lonnet::hostname{$a} cmp
186: $Apache::lonnet::hostname{$b};
187: }
188: keys(%Apache::lonnet::spareid)) {
189: next if ($hostid eq $lonhost);
190: next if ($last eq $Apache::lonnet::hostname{$hostid});
191: $spares.='<br /><font size="+1"><a href="http://'.
192: $Apache::lonnet::hostname{$hostid}.
193: '/adm/login?domain='.$authdomain.'">'.
194: $Apache::lonnet::hostname{$hostid}.'</a>'.
195: ' (preferred)</font>'.$/;
196: $last=$Apache::lonnet::hostname{$hostid};
197: }
198: $spares.= '<br />';
199: foreach my $hostid (sort
200: {
201: $Apache::lonnet::hostname{$a} cmp
202: $Apache::lonnet::hostname{$b};
203: }
204: keys(%Apache::lonnet::hostname)) {
205: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
206: next if ($last eq $Apache::lonnet::hostname{$hostid});
207: $spares.='<br /><a href="http://'.
208: $Apache::lonnet::hostname{$hostid}.
209: '/adm/login?domain='.$authdomain.'">'.
210: $Apache::lonnet::hostname{$hostid}.'</a>';
211: $last=$Apache::lonnet::hostname{$hostid};
212: }
213: $r->print(<<ENDTROUBLE);
214: <html>
215: <head><title>The LearningOnline Network with CAPA</title></head>
216: <body bgcolor="#FFFFFF">
217: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
218: <h3>This LON-CAPA server is temporarily not available for login</h3>
219: <p>Please attempt to login to one of the following servers:</p>$spares
220: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
221: </body>
222: </html>
223: ENDTROUBLE
224: return OK;
225: }
226:
227: # ----------------------------------------------- Apparently we are in business
228:
229: my $domainlogo=&Apache::loncommon::domainlogo($domain);
230: $servadm=~s/\,/\<br \/\>/g;
231: $sysadm=~s/\,/\<br \/\>/g;
232:
233: # --------------------------------------------------- Print login screen header
234: $r->print(<<ENDHEADER);
235: <html>
236: <head>
237: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
238: <title>The LearningOnline Network with CAPA Login</title>
239: </head>
240: ENDHEADER
241: # ---------------------------------------------------- Serve out DES JavaScript
242: {
243: my $jsh=Apache::File->new($include."/londes.js");
244: $r->print(<$jsh>);
245: }
246:
247: # ----------------------------------------------------------- Front page design
248: my $pgbg=
249: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
250: my $font=
251: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
252: my $link=
253: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
254: my $vlink=
255: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
256: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
257: my $mainbg=
258: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
259: my $sidebg=
260: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
261: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
262: my $img=&Apache::loncommon::designparm('login.img',$domain);
263:
264: # ----------------------------------------------------------------------- Texts
265:
266: my %lt=&Apache::lonlocal::texthash(
267: 'un' => 'Username',
268: 'pw' => 'Password',
269: 'dom' => 'Domain',
270: 'perc' => 'percent',
271: 'load' => 'Load',
272: 'userload' => 'User Load',
273: 'about' => 'aboutlon.gif',
274: 'access' => 'accessbutton.gif',
275: 'auth' => 'userauthentication.gif',
276: 'log' => 'Log in',
277: 'help' => 'Help',
278: 'serv' => 'Server',
279: 'servadm' => 'Server Administration',
280: 'sysadm' => 'System Administration',
281: 'helpdesk' => 'Contact Helpdesk');
282:
283: # ---------------------------------------------------------- Serve rest of page
284: $r->print(<<ENDSCRIPT);
285:
286: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
287: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
288:
289: <script language="JavaScript">
290: function send()
291: {
292: this.document.server.elements.uname.value
293: =this.document.client.elements.uname.value;
294:
295: this.document.server.elements.udom.value
296: =this.document.client.elements.udom.value;
297:
298: this.document.server.elements.imagesuppress.value
299: =this.document.client.elements.imagesuppress.checked;
300:
301: this.document.server.elements.embedsuppress.value
302: =this.document.client.elements.embedsuppress.checked;
303:
304: this.document.server.elements.appletsuppress.value
305: =this.document.client.elements.appletsuppress.checked;
306:
307: this.document.server.elements.fontenhance.value
308: =this.document.client.elements.fontenhance.checked;
309:
310: this.document.server.elements.blackwhite.value
311: =this.document.client.elements.blackwhite.checked;
312:
313: this.document.server.elements.remember.value
314: =this.document.client.elements.remember.checked;
315:
316: uextkey=this.document.client.elements.uextkey.value;
317: lextkey=this.document.client.elements.lextkey.value;
318: initkeys();
319:
320: this.document.server.elements.upass0.value
321: =crypted(this.document.client.elements.upass.value.substr(0,15));
322: this.document.server.elements.upass1.value
323: =crypted(this.document.client.elements.upass.value.substr(15,15));
324: this.document.server.elements.upass2.value
325: =crypted(this.document.client.elements.upass.value.substr(30,15));
326:
327: this.document.server.submit();
328: return false;
329: }
330: </script>
331: ENDSCRIPT
332:
333: if ($fullgraph) {
334: $r->print(
335: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
336: }
337:
338: $r->print(<<ENDSERVERFORM);
339: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
340: <input type="hidden" name="logtoken" value="$logtoken" />
341: <input type="hidden" name="serverid" value="$lonhost" />
342: <input type="hidden" name="interface" value="$env{'form.interface'}" />
343: <input type="hidden" name="uname" value="" />
344: <input type="hidden" name="upass0" value="" />
345: <input type="hidden" name="upass1" value="" />
346: <input type="hidden" name="upass2" value="" />
347: <input type="hidden" name="udom" value="" />
348: <input type="hidden" name="imagesuppress" value="" />
349: <input type="hidden" name="appletsuppress" value="" />
350: <input type="hidden" name="embedsuppress" value="" />
351: <input type="hidden" name="fontenhance" value="" />
352: <input type="hidden" name="blackwhite" value="" />
353: <input type="hidden" name="remember" value="" />
354: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
355: <input type="hidden" name="localres" value="$env{'form.localres'}" />
356: </form>
357: ENDSERVERFORM
358: if ($fullgraph) { $r->print(<<ENDTOP);
359: <!-- The LON-CAPA Header -->
360: <tr>
361:
362: <!-- Row 1 Columns 2-4 -->
363: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
364: </tr>
365:
366: <!-- The gray bar that starts the two table frames -->
367: <tr>
368:
369: <!-- Row 2 Column 1 -->
370: <td width=182 height=27 bgcolor="$sidebg"> </td>
371:
372: <!-- Row 2 Column 2 -->
373: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
374:
375: <!-- Row 2 Column 3 -->
376: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
377:
378: <!-- Row 2 Column 4 -->
379: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
380: </tr>
381: <tr>
382:
383: <!-- A cell that will hold the 'access' and 'about' buttons -->
384: <!-- Row 3 Column 1 -->
385: <td valign="top" height=60 align="center" bgcolor="$sidebg">
386: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
387: <br />
388: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
389: </td>
390:
391: <!-- The shaded space between the two main columns -->
392: <!-- Row 3 Column 2 -->
393: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
394:
395: <!-- The right main column holding the large LON-CAPA logo-->
396: <!-- Rows 3-4 Column 3 -->
397: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
398: <center>
399: <img src="$logo" alt="" />
400: </center>
401: </td>
402:
403: <!-- Row 3 Column 4 -->
404: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
405: </tr>
406: <tr>
407:
408: <!-- The entry form -->
409: <!-- Row 4 Column 1 -->
410: <td align="center" valign="middle" bgcolor="$sidebg">
411: ENDTOP
412: } else {
413: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
414: }
415: $r->print('<form name="client" onsubmit="return(send())">');
416: unless ($fullgraph) {
417: $r->print(<<ENDACCESSOPTIONS);
418: <h3>Select Accessibility Options</h3>
419: <input type="checkbox" name="imagesuppress" /> Suppress rendering of images<br />
420: <input type="checkbox" name="appletsuppress" /> Suppress Java applets<br />
421: <input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia<br />
422: <input type="checkbox" name="fontenhance" /> Increase font size<br />
423: <input type="checkbox" name="blackwhite" /> Switch to black and white mode<br />
424: <p>If you have accessibility needs that are not addressed by this interface,
425: please
426: contact the system administrator at <tt>$sysadm</tt>.</p><br />
427: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
428: ENDACCESSOPTIONS
429: } else {
430: $r->print(<<ENDNOOPT);
431: <input type="hidden" name="imagesuppress" value="" />
432: <input type="hidden" name="embedsuppress" value="" />
433: <input type="hidden" name="appletsuppress" value="" />
434: <input type="hidden" name="fontenhance" value="" />
435: <input type="hidden" name="blackwhite" value="" />
436: <input type="hidden" name="remember" value="" />
437: ENDNOOPT
438: }
439: $r->print(<<ENDLOGIN);
440: <input type="hidden" name="lextkey" value="$lextkey">
441: <input type="hidden" name="uextkey" value="$uextkey">
442:
443: <!-- Start the sub-table for text and input alignment -->
444: <table border=0 cellspacing=0 cellpadding=0>
445: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
446: <tr>
447: <td bgcolor="$mainbg"><br /><font size=-1><b> $lt{'un'}:</b></font></td>
448: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
449: </tr>
450: <tr>
451: <td bgcolor="$mainbg"><font size=-1><b> $lt{'pw'}:</b></font></td>
452: <td bgcolor="$mainbg"><input type="password" name="upass" size="10" /></td>
453: </tr>
454: <tr>
455: <td bgcolor="$mainbg"><font size=-1><b> $lt{'dom'}:</b></font></td>
456: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
457: </tr>
458: <tr>
459: <td bgcolor="$mainbg"> <a href="/adm/loginproblems.html">$lt{'help'}</a></td>
460: <td bgcolor="$mainbg" valign="bottom" align="center">
461: <br />
462: <input type="submit" value="$lt{'log'}" />
463: </td>
464: </tr>
465: </table>
466: <!-- End sub-table -->
467: </form>
468: ENDLOGIN
469: if ($fullgraph) {
470: my $helpdeskscript;
471: my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
472: $r->print(<<ENDDOCUMENT);
473: </td>
474:
475: <!-- Row 4 Column 2 -->
476: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
477:
478: <!-- Row 4 Column 3 -->
479: <td bgcolor="$mainbg">$announcements</td>
480:
481: <!-- Row 4 Column 4 -->
482: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
483: </tr>
484: <tr>
485:
486: <!-- Row 5 Column 1 -->
487: <td bgcolor="$sidebg" valign="middle" align="left">
488: <br />
489: <table border=0 cellspacing=0 cellpadding=0>
490: <tr>
491: <td bgcolor="$sidebg" align="left" valign="top">
492: <small><b> $lt{'dom'}: </b></small>
493: </td>
494: <td bgcolor="$sidebg" align="left" valign="top">
495: <small><tt> $domain</tt></small>
496: </td>
497: </tr>
498: <tr>
499: <td bgcolor="$sidebg" align="left" valign="top">
500: <small><b> $lt{'serv'}: </b></small>
501: </td>
502: <td bgcolor="$sidebg" align="left" valign="top">
503: <small><tt> $lonhost ($role)</tt></small>
504: </td>
505: </tr>
506: <tr>
507: <td bgcolor="$sidebg" align="left" valign="top">
508: <small><b> $lt{'load'}: </b></small>
509: </td>
510: <td bgcolor="$sidebg" align="left" valign="top">
511: <small><tt> $loadpercent $lt{'perc'}</tt></small>
512: </td>
513: </tr>
514: <tr>
515: <td bgcolor="$sidebg" align="left" valign="top">
516: <small><b> $lt{'userload'}: </b></small>
517: </td>
518: <td bgcolor="$sidebg" align="left" valign="top">
519: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
520: </td>
521: </tr>
522: </table>
523: <br />
524: $contactblock
525: </td>
526:
527: <!-- Row 5 Column 2 -->
528: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
529:
530: <!-- Row 5 Column 3 -->
531: <td width="100%" valign="bottom" bgcolor="$mainbg">
532: $domainlogo
533: </td>
534:
535: <!-- Row 5 Column 4 -->
536: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
537: </tr>
538: <tr>
539:
540: <!-- Row 6 Column 1 -->
541: <td bgcolor="$sidebg"> </td>
542:
543: <!-- Row 6 Column 2 -->
544: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
545:
546: <!-- Row 6 Column 3 -->
547: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
548:
549: <!-- Row 6 Column 4 -->
550: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
551: </tr>
552: </table>
553:
554: <script type="text/javascript">
555: // the if prevents the script error if the browser can not handle this
556: if ( document.client.uname ) { document.client.uname.focus(); }
557: </script>
558: $helpdeskscript
559:
560: ENDDOCUMENT
561: }
562: $r->print('</body></html>');
563: return OK;
564: }
565:
566: sub contactdisplay {
567: my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
568: my $contactblock;
569: my $showsysadm = 1;
570: my $showservadm = 1;
571: my $showhelpdesk = 0;
572: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
573: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
574: $showhelpdesk = 1;
575: }
576: if ($showsysadm) {
577: $contactblock .= '<b> '.$$lt{'sysadm'}.':</b><br />'.
578: '<tt> '.$sysadm.'</tt><br />';
579: }
580: if ($showservadm) {
581: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
582: '<tt> '.$servadm.'</tt><br /> <br />';
583: }
584: if ($showhelpdesk) {
585: $contactblock .= '<b> <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
586: my $thisurl = &Apache::lonnet::escape('/adm/login');
587: $$helpdeskscript = <<"ENDSCRIPT";
588: <script type="text/javascript">
589: function helpdesk() {
590: var codedom = document.client.udom.value;
591: if (codedom == '') {
592: codedom = "$authdomain";
593: }
594: var querystr = "origurl=$thisurl&codedom="+codedom;
595: document.location.href = "/adm/helpdesk?"+querystr;
596: return;
597: }
598: </script>
599: ENDSCRIPT
600: }
601: $contactblock .= <<"ENDBLOCK";
602: $version
603: ENDBLOCK
604: return $contactblock;
605: }
606:
607:
608: 1;
609: __END__
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