1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.72 2006/02/28 16:42:42 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:
41: sub handler {
42: my $r = shift;
43:
44: &Apache::loncommon::get_unprocessed_cgi
45: ($ENV{'QUERY_STRING'}.'&'.$env{'request.querystring'},
46: ['interface','username','domain','firsturl','localpath','localres',
47: 'token']);
48:
49: # -- check if they are a migrating user
50: if (defined($env{'form.token'})) {
51: return &Apache::migrateuser::handler($r);
52: }
53:
54: &Apache::loncommon::no_cache($r);
55: &Apache::lonlocal::get_language_handle($r);
56: &Apache::loncommon::content_type($r,'text/html');
57: $r->send_http_header;
58: return OK if $r->header_only;
59:
60:
61: # Are we re-routing?
62: if (-e '/home/httpd/html/lon-status/reroute.txt') {
63: &Apache::lonauth::reroute($r);
64: return OK;
65: }
66:
67:
68: # -------------------------------- Prevent users from attempting to login twice
69: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
70: my $lonid=$cookies{'lonID'};
71: my $cookie;
72: if ($lonid) {
73: my $handle=$lonid->value;
74: $handle=~s/\W//g;
75: my $lonidsdir=$r->dir_config('lonIDsDir');
76: if (-e "$lonidsdir/$handle.id") {
77: # Is there an existing token file?
78: if ($handle=~/^publicuser\_/) {
79: # For "public user" - remove it, we apparently really want to login
80: unlink("$lonidsdir/$handle.id");
81: } elsif ($handle ne '') {
82: # Indeed, a valid token is found
83: my $bodytag=&Apache::loncommon::bodytag('Already logged in');
84: $r->print(<<ENDFAILED);
85: <html>
86: <head>
87: <title>Already logged in</title>
88: </head>
89: $bodytag
90: <h1>You are already logged in</h1>
91: <p>Please either <a href="/adm/roles">continue the current session</a> or
92: <a href="/adm/logout">logout</a>.</p>
93: <p>
94: <a href="/adm/loginproblems.html">Problems?</a></p>
95: </body>
96: </html>
97: ENDFAILED
98: return OK;
99: }
100: }
101: }
102:
103: # ---------------------------------------------------- No valid token, continue
104:
105: # ---------------------------- Not possible to really login to domain "public"
106: if ($env{'form.domain'} eq 'public') {
107: $env{'form.domain'}='';
108: $env{'form.username'}='';
109: }
110: # ----------------------------------------------------------- Process Interface
111: $env{'form.interface'}=~s/\W//g;
112:
113: my $textbrowsers=$r->dir_config('lonTextBrowsers');
114: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
115:
116: foreach (split(/\:/,$textbrowsers)) {
117: if ($httpbrowser=~/$_/i) {
118: $env{'form.interface'}='textual';
119: }
120: }
121:
122: my $fullgraph=($env{'form.interface'} ne 'textual');
123: my $port_to_use=$r->dir_config('lonhttpdPort');
124: if (!defined($port_to_use)) {
125: $port_to_use='8080';
126: }
127: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
128: $r->dir_config('lonIconsURL');
129: my $domain = $r->dir_config('lonDefDomain');
130: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
131: foreach my $posdom (&Apache::lonnet::current_machine_domains()) {
132: if (lc($posdom) eq lc($testdomain)) { $domain=$posdomain; }
133: }
134: if (($env{'form.domain'}) &&
135: ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
136: $domain=$env{'form.domain'};
137: }
138: my $role = $r->dir_config('lonRole');
139: my $loadlim = $r->dir_config('lonLoadLim');
140: my $servadm = $r->dir_config('lonAdmEMail');
141: my $sysadm = $r->dir_config('lonSysEMail');
142: my $lonhost = $r->dir_config('lonHostID');
143: my $tabdir = $r->dir_config('lonTabDir');
144: my $include = $r->dir_config('lonIncludes');
145: my $expire = $r->dir_config('lonExpire');
146: my $version = $r->dir_config('lonVersion');
147:
148: # --------------------------------------------- Default values for login fields
149:
150: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
151: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
152:
153: # ---------------------------------------------------------- Determine own load
154: my $loadavg;
155: {
156: my $loadfile=Apache::File->new('/proc/loadavg');
157: $loadavg=<$loadfile>;
158: }
159: $loadavg =~ s/\s.*//g;
160: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
161: my $userloadpercent=&Apache::lonnet::userload();
162:
163: # ------------------------------------------------------- Do the load balancing
164: my $otherserver='http://'.$ENV{'SERVER_NAME'};
165: my $firsturl=
166: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
167: # ---------------------------------------- Are we access server and overloaded?
168: if (($role eq 'access') &&
169: (($userloadpercent>100.0)||($loadpercent>100.0))) {
170: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
171: if ($unloaded) { $otherserver=$unloaded; }
172: }
173:
174: # ----------------------------------------------------------- Get announcements
175: my $announcements=&Apache::lonnet::getannounce();
176: # -------------------------------------------------------- Set login parameters
177:
178: my @hexstr=('0','1','2','3','4','5','6','7',
179: '8','9','a','b','c','d','e','f');
180: my $lkey='';
181: for (0..7) {
182: $lkey.=$hexstr[rand(15)];
183: }
184:
185: my $ukey='';
186: for (0..7) {
187: $ukey.=$hexstr[rand(15)];
188: }
189:
190: my $lextkey=hex($lkey);
191: if ($lextkey>2147483647) { $lextkey-=4294967296; }
192:
193: my $uextkey=hex($ukey);
194: if ($uextkey>2147483647) { $uextkey-=4294967296; }
195:
196: # -------------------------------------------------------- Store away log token
197: my $logtoken=Apache::lonnet::reply(
198: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
199: $lonhost);
200:
201: # ------------------- If we cannot talk to ourselves, we are in serious trouble
202:
203: if ($logtoken eq 'con_lost') {
204: my $spares='';
205: my $last;
206: foreach my $hostid (sort
207: {
208: $Apache::lonnet::hostname{$a} cmp
209: $Apache::lonnet::hostname{$b};
210: }
211: keys(%Apache::lonnet::spareid)) {
212: next if ($hostid eq $lonhost);
213: next if ($last eq $Apache::lonnet::hostname{$hostid});
214: $spares.='<br /><font size="+1"><a href="http://'.
215: $Apache::lonnet::hostname{$hostid}.
216: '/adm/login?domain='.$authdomain.'">'.
217: $Apache::lonnet::hostname{$hostid}.'</a>'.
218: ' (preferred)</font>'.$/;
219: $last=$Apache::lonnet::hostname{$hostid};
220: }
221: $spares.= '<br />';
222: foreach my $hostid (sort
223: {
224: $Apache::lonnet::hostname{$a} cmp
225: $Apache::lonnet::hostname{$b};
226: }
227: keys(%Apache::lonnet::hostname)) {
228: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
229: next if ($last eq $Apache::lonnet::hostname{$hostid});
230: $spares.='<br /><a href="http://'.
231: $Apache::lonnet::hostname{$hostid}.
232: '/adm/login?domain='.$authdomain.'">'.
233: $Apache::lonnet::hostname{$hostid}.'</a>';
234: $last=$Apache::lonnet::hostname{$hostid};
235: }
236: $r->print(<<ENDTROUBLE);
237: <html>
238: <head><title>The LearningOnline Network with CAPA</title></head>
239: <body bgcolor="#FFFFFF">
240: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
241: <h3>This LON-CAPA server is temporarily not available for login</h3>
242: <p>Please attempt to login to one of the following servers:</p>$spares
243: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
244: </body>
245: </html>
246: ENDTROUBLE
247: return OK;
248: }
249:
250: # ----------------------------------------------- Apparently we are in business
251:
252: my $domainlogo=&Apache::loncommon::domainlogo($domain);
253: $servadm=~s/\,/\<br \/\>/g;
254: $sysadm=~s/\,/\<br \/\>/g;
255:
256: # --------------------------------------------------- Print login screen header
257: $r->print(<<ENDHEADER);
258: <html>
259: <head>
260: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
261: <title>The LearningOnline Network with CAPA Login</title>
262: </head>
263: ENDHEADER
264: # ---------------------------------------------------- Serve out DES JavaScript
265: {
266: my $jsh=Apache::File->new($include."/londes.js");
267: $r->print(<$jsh>);
268: }
269:
270: # ----------------------------------------------------------- Front page design
271: my $pgbg=
272: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
273: my $font=
274: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
275: my $link=
276: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
277: my $vlink=
278: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
279: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
280: my $mainbg=
281: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
282: my $sidebg=
283: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
284: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
285: my $img=&Apache::loncommon::designparm('login.img',$domain);
286:
287: # ----------------------------------------------------------------------- Texts
288:
289: my %lt=&Apache::lonlocal::texthash(
290: 'un' => 'Username',
291: 'pw' => 'Password',
292: 'dom' => 'Domain',
293: 'perc' => 'percent',
294: 'load' => 'Load',
295: 'userload' => 'User Load',
296: 'about' => 'aboutlon.gif',
297: 'access' => 'accessbutton.gif',
298: 'auth' => 'userauthentication.gif',
299: 'log' => 'Log in',
300: 'help' => 'Help',
301: 'serv' => 'Server',
302: 'servadm' => 'Server Administration',
303: 'sysadm' => 'System Administration',
304: 'helpdesk' => 'Contact Helpdesk');
305: # -------------------------------------------------- Change password field name
306: my $now=time;
307: # ---------------------------------------------------------- Serve rest of page
308: $r->print(<<ENDSCRIPT);
309:
310: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
311: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
312:
313: <script language="JavaScript">
314: function send()
315: {
316: this.document.server.elements.uname.value
317: =this.document.client.elements.uname.value;
318:
319: this.document.server.elements.udom.value
320: =this.document.client.elements.udom.value;
321:
322: this.document.server.elements.imagesuppress.value
323: =this.document.client.elements.imagesuppress.checked;
324:
325: this.document.server.elements.embedsuppress.value
326: =this.document.client.elements.embedsuppress.checked;
327:
328: this.document.server.elements.appletsuppress.value
329: =this.document.client.elements.appletsuppress.checked;
330:
331: this.document.server.elements.fontenhance.value
332: =this.document.client.elements.fontenhance.checked;
333:
334: this.document.server.elements.blackwhite.value
335: =this.document.client.elements.blackwhite.checked;
336:
337: this.document.server.elements.remember.value
338: =this.document.client.elements.remember.checked;
339:
340: uextkey=this.document.client.elements.uextkey.value;
341: lextkey=this.document.client.elements.lextkey.value;
342: initkeys();
343:
344: this.document.server.elements.upass0.value
345: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
346: this.document.server.elements.upass1.value
347: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
348: this.document.server.elements.upass2.value
349: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
350:
351: this.document.client.elements.uname.value='';
352: this.document.client.elements.upass$now.value='';
353:
354: this.document.server.submit();
355: return false;
356: }
357: </script>
358: ENDSCRIPT
359:
360: if ($fullgraph) {
361: $r->print(
362: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
363: }
364:
365: $r->print(<<ENDSERVERFORM);
366: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
367: <input type="hidden" name="logtoken" value="$logtoken" />
368: <input type="hidden" name="serverid" value="$lonhost" />
369: <input type="hidden" name="interface" value="$env{'form.interface'}" />
370: <input type="hidden" name="uname" value="" />
371: <input type="hidden" name="upass0" value="" />
372: <input type="hidden" name="upass1" value="" />
373: <input type="hidden" name="upass2" value="" />
374: <input type="hidden" name="udom" value="" />
375: <input type="hidden" name="imagesuppress" value="" />
376: <input type="hidden" name="appletsuppress" value="" />
377: <input type="hidden" name="embedsuppress" value="" />
378: <input type="hidden" name="fontenhance" value="" />
379: <input type="hidden" name="blackwhite" value="" />
380: <input type="hidden" name="remember" value="" />
381: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
382: <input type="hidden" name="localres" value="$env{'form.localres'}" />
383: </form>
384: ENDSERVERFORM
385: if ($fullgraph) { $r->print(<<ENDTOP);
386: <!-- The LON-CAPA Header -->
387: <tr>
388:
389: <!-- Row 1 Columns 2-4 -->
390: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
391: </tr>
392:
393: <!-- The gray bar that starts the two table frames -->
394: <tr>
395:
396: <!-- Row 2 Column 1 -->
397: <td width=182 height=27 bgcolor="$sidebg"> </td>
398:
399: <!-- Row 2 Column 2 -->
400: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
401:
402: <!-- Row 2 Column 3 -->
403: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
404:
405: <!-- Row 2 Column 4 -->
406: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
407: </tr>
408: <tr>
409:
410: <!-- A cell that will hold the 'access' and 'about' buttons -->
411: <!-- Row 3 Column 1 -->
412: <td valign="top" height=60 align="center" bgcolor="$sidebg">
413: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
414: <br />
415: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
416: </td>
417:
418: <!-- The shaded space between the two main columns -->
419: <!-- Row 3 Column 2 -->
420: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
421:
422: <!-- The right main column holding the large LON-CAPA logo-->
423: <!-- Rows 3-4 Column 3 -->
424: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
425: <center>
426: <img src="$logo" alt="" />
427: </center>
428: </td>
429:
430: <!-- Row 3 Column 4 -->
431: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
432: </tr>
433: <tr>
434:
435: <!-- The entry form -->
436: <!-- Row 4 Column 1 -->
437: <td align="center" valign="middle" bgcolor="$sidebg">
438: ENDTOP
439: } else {
440: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
441: }
442: $r->print('<form name="client" onsubmit="return(send())">');
443: unless ($fullgraph) {
444: $r->print(<<ENDACCESSOPTIONS);
445: <h3>Select Accessibility Options</h3>
446: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
447: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
448: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
449: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
450: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
451: <p>If you have accessibility needs that are not addressed by this interface,
452: please
453: contact the system administrator at <tt>$sysadm</tt>.</p><br />
454: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
455: ENDACCESSOPTIONS
456: } else {
457: $r->print(<<ENDNOOPT);
458: <input type="hidden" name="imagesuppress" value="" />
459: <input type="hidden" name="embedsuppress" value="" />
460: <input type="hidden" name="appletsuppress" value="" />
461: <input type="hidden" name="fontenhance" value="" />
462: <input type="hidden" name="blackwhite" value="" />
463: <input type="hidden" name="remember" value="" />
464: ENDNOOPT
465: }
466: $r->print(<<ENDLOGIN);
467: <input type="hidden" name="lextkey" value="$lextkey">
468: <input type="hidden" name="uextkey" value="$uextkey">
469:
470: <!-- Start the sub-table for text and input alignment -->
471: <table border=0 cellspacing=0 cellpadding=0>
472: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
473: <tr>
474: <td bgcolor="$mainbg"><br /><font size=-1><b> $lt{'un'}:</b></font></td>
475: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
476: </tr>
477: <tr>
478: <td bgcolor="$mainbg"><font size=-1><b> $lt{'pw'}:</b></font></td>
479: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
480: </tr>
481: <tr>
482: <td bgcolor="$mainbg"><font size=-1><b> $lt{'dom'}:</b></font></td>
483: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
484: </tr>
485: <tr>
486: <td bgcolor="$mainbg"> <a href="/adm/loginproblems.html">$lt{'help'}</a></td>
487: <td bgcolor="$mainbg" valign="bottom" align="center">
488: <br />
489: <input type="submit" value="$lt{'log'}" />
490: </td>
491: </tr>
492: </table>
493: <!-- End sub-table -->
494: </form>
495: ENDLOGIN
496: if ($fullgraph) {
497: my $helpdeskscript;
498: my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
499: $r->print(<<ENDDOCUMENT);
500: </td>
501:
502: <!-- Row 4 Column 2 -->
503: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
504:
505: <!-- Row 4 Column 3 -->
506: <td bgcolor="$mainbg">$announcements</td>
507:
508: <!-- Row 4 Column 4 -->
509: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
510: </tr>
511: <tr>
512:
513: <!-- Row 5 Column 1 -->
514: <td bgcolor="$sidebg" valign="middle" align="left">
515: <br />
516: <table border=0 cellspacing=0 cellpadding=0>
517: <tr>
518: <td bgcolor="$sidebg" align="left" valign="top">
519: <small><b> $lt{'dom'}: </b></small>
520: </td>
521: <td bgcolor="$sidebg" align="left" valign="top">
522: <small><tt> $domain</tt></small>
523: </td>
524: </tr>
525: <tr>
526: <td bgcolor="$sidebg" align="left" valign="top">
527: <small><b> $lt{'serv'}: </b></small>
528: </td>
529: <td bgcolor="$sidebg" align="left" valign="top">
530: <small><tt> $lonhost ($role)</tt></small>
531: </td>
532: </tr>
533: <tr>
534: <td bgcolor="$sidebg" align="left" valign="top">
535: <small><b> $lt{'load'}: </b></small>
536: </td>
537: <td bgcolor="$sidebg" align="left" valign="top">
538: <small><tt> $loadpercent $lt{'perc'}</tt></small>
539: </td>
540: </tr>
541: <tr>
542: <td bgcolor="$sidebg" align="left" valign="top">
543: <small><b> $lt{'userload'}: </b></small>
544: </td>
545: <td bgcolor="$sidebg" align="left" valign="top">
546: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
547: </td>
548: </tr>
549: </table>
550: <br />
551: $contactblock
552: </td>
553:
554: <!-- Row 5 Column 2 -->
555: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
556:
557: <!-- Row 5 Column 3 -->
558: <td width="100%" valign="bottom" bgcolor="$mainbg">
559: $domainlogo
560: </td>
561:
562: <!-- Row 5 Column 4 -->
563: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
564: </tr>
565: <tr>
566:
567: <!-- Row 6 Column 1 -->
568: <td bgcolor="$sidebg"> </td>
569:
570: <!-- Row 6 Column 2 -->
571: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
572:
573: <!-- Row 6 Column 3 -->
574: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
575:
576: <!-- Row 6 Column 4 -->
577: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
578: </tr>
579: </table>
580:
581: <script type="text/javascript">
582: // the if prevents the script error if the browser can not handle this
583: if ( document.client.uname ) { document.client.uname.focus(); }
584: </script>
585: $helpdeskscript
586:
587: ENDDOCUMENT
588: }
589: $r->print('</body></html>');
590: return OK;
591: }
592:
593: sub contactdisplay {
594: my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
595: my $contactblock;
596: my $showsysadm = 1;
597: my $showservadm = 1;
598: my $showhelpdesk = 0;
599: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
600: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
601: $showhelpdesk = 1;
602: }
603: if ($showsysadm) {
604: $contactblock .= '<b> '.$$lt{'sysadm'}.':</b><br />'.
605: '<tt> '.$sysadm.'</tt><br />';
606: }
607: if ($showservadm) {
608: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
609: '<tt> '.$servadm.'</tt><br /> <br />';
610: }
611: if ($showhelpdesk) {
612: $contactblock .= '<b> <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
613: my $thisurl = &Apache::lonnet::escape('/adm/login');
614: $$helpdeskscript = <<"ENDSCRIPT";
615: <script type="text/javascript">
616: function helpdesk() {
617: var codedom = document.client.udom.value;
618: if (codedom == '') {
619: codedom = "$authdomain";
620: }
621: var querystr = "origurl=$thisurl&codedom="+codedom;
622: document.location.href = "/adm/helpdesk?"+querystr;
623: return;
624: }
625: </script>
626: ENDSCRIPT
627: }
628: $contactblock .= <<"ENDBLOCK";
629: $version
630: ENDBLOCK
631: return $contactblock;
632: }
633:
634:
635: 1;
636: __END__
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