1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.70 2005/11/23 20:58:31 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") {
64: # Is there an existing token file?
65: if ($handle=~/^publicuser\_/) {
66: # For "public user" - remove it, we apparently really want to login
67: unlink("$lonidsdir/$handle.id");
68: } elsif ($handle ne '') {
69: # Indeed, a valid token is found
70: my $bodytag=&Apache::loncommon::bodytag('Already logged in');
71: $r->print(<<ENDFAILED);
72: <html>
73: <head>
74: <title>Already logged in</title>
75: </head>
76: $bodytag
77: <h1>You are already logged in</h1>
78: <p>Please either <a href="/adm/roles">continue the current session</a> or
79: <a href="/adm/logout">logout</a>.</p>
80: <p>
81: <a href="/adm/loginproblems.html">Problems?</a></p>
82: </body>
83: </html>
84: ENDFAILED
85: return OK;
86: }
87: }
88: }
89:
90: # ---------------------------------------------------- No valid token, continue
91:
92: &Apache::loncommon::get_unprocessed_cgi
93: ($ENV{'QUERY_STRING'}.'&'.$env{'request.querystring'},
94: ['interface','username','domain','firsturl','localpath','localres']);
95:
96: # ---------------------------- Not possible to really login to domain "public"
97: if ($env{'form.domain'} eq 'public') {
98: $env{'form.domain'}='';
99: $env{'form.username'}='';
100: }
101: # ----------------------------------------------------------- Process Interface
102: $env{'form.interface'}=~s/\W//g;
103:
104: my $textbrowsers=$r->dir_config('lonTextBrowsers');
105: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
106:
107: foreach (split(/\:/,$textbrowsers)) {
108: if ($httpbrowser=~/$_/i) {
109: $env{'form.interface'}='textual';
110: }
111: }
112:
113: my $fullgraph=($env{'form.interface'} ne 'textual');
114: my $port_to_use=$r->dir_config('lonhttpdPort');
115: if (!defined($port_to_use)) {
116: $port_to_use='8080';
117: }
118: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
119: $r->dir_config('lonIconsURL');
120: my $domain = $r->dir_config('lonDefDomain');
121: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
122: foreach my $posdom (&Apache::lonnet::current_machine_domains()) {
123: if ($posdom eq $testdomain) { $domain=$testdomain; }
124: }
125: if (($env{'form.domain'}) &&
126: ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
127: $domain=$env{'form.domain'};
128: }
129: my $role = $r->dir_config('lonRole');
130: my $loadlim = $r->dir_config('lonLoadLim');
131: my $servadm = $r->dir_config('lonAdmEMail');
132: my $sysadm = $r->dir_config('lonSysEMail');
133: my $lonhost = $r->dir_config('lonHostID');
134: my $tabdir = $r->dir_config('lonTabDir');
135: my $include = $r->dir_config('lonIncludes');
136: my $expire = $r->dir_config('lonExpire');
137: my $version = $r->dir_config('lonVersion');
138:
139: # --------------------------------------------- Default values for login fields
140:
141: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
142: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
143:
144: # ---------------------------------------------------------- Determine own load
145: my $loadavg;
146: {
147: my $loadfile=Apache::File->new('/proc/loadavg');
148: $loadavg=<$loadfile>;
149: }
150: $loadavg =~ s/\s.*//g;
151: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
152: my $userloadpercent=&Apache::lonnet::userload();
153:
154: # ------------------------------------------------------- Do the load balancing
155: my $otherserver='http://'.$ENV{'SERVER_NAME'};
156: my $firsturl=
157: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
158: # ---------------------------------------- Are we access server and overloaded?
159: if (($role eq 'access') &&
160: (($userloadpercent>100.0)||($loadpercent>100.0))) {
161: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
162: if ($unloaded) { $otherserver=$unloaded; }
163: }
164:
165: # ----------------------------------------------------------- Get announcements
166: my $announcements=&Apache::lonnet::getannounce();
167: # -------------------------------------------------------- Set login parameters
168:
169: my @hexstr=('0','1','2','3','4','5','6','7',
170: '8','9','a','b','c','d','e','f');
171: my $lkey='';
172: for (0..7) {
173: $lkey.=$hexstr[rand(15)];
174: }
175:
176: my $ukey='';
177: for (0..7) {
178: $ukey.=$hexstr[rand(15)];
179: }
180:
181: my $lextkey=hex($lkey);
182: if ($lextkey>2147483647) { $lextkey-=4294967296; }
183:
184: my $uextkey=hex($ukey);
185: if ($uextkey>2147483647) { $uextkey-=4294967296; }
186:
187: # -------------------------------------------------------- Store away log token
188: my $logtoken=Apache::lonnet::reply(
189: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
190: $lonhost);
191:
192: # ------------------- If we cannot talk to ourselves, we are in serious trouble
193:
194: if ($logtoken eq 'con_lost') {
195: my $spares='';
196: my $last;
197: foreach my $hostid (sort
198: {
199: $Apache::lonnet::hostname{$a} cmp
200: $Apache::lonnet::hostname{$b};
201: }
202: keys(%Apache::lonnet::spareid)) {
203: next if ($hostid eq $lonhost);
204: next if ($last eq $Apache::lonnet::hostname{$hostid});
205: $spares.='<br /><font size="+1"><a href="http://'.
206: $Apache::lonnet::hostname{$hostid}.
207: '/adm/login?domain='.$authdomain.'">'.
208: $Apache::lonnet::hostname{$hostid}.'</a>'.
209: ' (preferred)</font>'.$/;
210: $last=$Apache::lonnet::hostname{$hostid};
211: }
212: $spares.= '<br />';
213: foreach my $hostid (sort
214: {
215: $Apache::lonnet::hostname{$a} cmp
216: $Apache::lonnet::hostname{$b};
217: }
218: keys(%Apache::lonnet::hostname)) {
219: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
220: next if ($last eq $Apache::lonnet::hostname{$hostid});
221: $spares.='<br /><a href="http://'.
222: $Apache::lonnet::hostname{$hostid}.
223: '/adm/login?domain='.$authdomain.'">'.
224: $Apache::lonnet::hostname{$hostid}.'</a>';
225: $last=$Apache::lonnet::hostname{$hostid};
226: }
227: $r->print(<<ENDTROUBLE);
228: <html>
229: <head><title>The LearningOnline Network with CAPA</title></head>
230: <body bgcolor="#FFFFFF">
231: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
232: <h3>This LON-CAPA server is temporarily not available for login</h3>
233: <p>Please attempt to login to one of the following servers:</p>$spares
234: <p>If the problem persists, please contact <tt>$servadm</tt>.</p>
235: </body>
236: </html>
237: ENDTROUBLE
238: return OK;
239: }
240:
241: # ----------------------------------------------- Apparently we are in business
242:
243: my $domainlogo=&Apache::loncommon::domainlogo($domain);
244: $servadm=~s/\,/\<br \/\>/g;
245: $sysadm=~s/\,/\<br \/\>/g;
246:
247: # --------------------------------------------------- Print login screen header
248: $r->print(<<ENDHEADER);
249: <html>
250: <head>
251: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
252: <title>The LearningOnline Network with CAPA Login</title>
253: </head>
254: ENDHEADER
255: # ---------------------------------------------------- Serve out DES JavaScript
256: {
257: my $jsh=Apache::File->new($include."/londes.js");
258: $r->print(<$jsh>);
259: }
260:
261: # ----------------------------------------------------------- Front page design
262: my $pgbg=
263: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
264: my $font=
265: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
266: my $link=
267: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
268: my $vlink=
269: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
270: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
271: my $mainbg=
272: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
273: my $sidebg=
274: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
275: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
276: my $img=&Apache::loncommon::designparm('login.img',$domain);
277:
278: # ----------------------------------------------------------------------- Texts
279:
280: my %lt=&Apache::lonlocal::texthash(
281: 'un' => 'Username',
282: 'pw' => 'Password',
283: 'dom' => 'Domain',
284: 'perc' => 'percent',
285: 'load' => 'Load',
286: 'userload' => 'User Load',
287: 'about' => 'aboutlon.gif',
288: 'access' => 'accessbutton.gif',
289: 'auth' => 'userauthentication.gif',
290: 'log' => 'Log in',
291: 'help' => 'Help',
292: 'serv' => 'Server',
293: 'servadm' => 'Server Administration',
294: 'sysadm' => 'System Administration',
295: 'helpdesk' => 'Contact Helpdesk');
296: # -------------------------------------------------- Change password field name
297: my $now=time;
298: # ---------------------------------------------------------- Serve rest of page
299: $r->print(<<ENDSCRIPT);
300:
301: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
302: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
303:
304: <script language="JavaScript">
305: function send()
306: {
307: this.document.server.elements.uname.value
308: =this.document.client.elements.uname.value;
309:
310: this.document.server.elements.udom.value
311: =this.document.client.elements.udom.value;
312:
313: this.document.server.elements.imagesuppress.value
314: =this.document.client.elements.imagesuppress.checked;
315:
316: this.document.server.elements.embedsuppress.value
317: =this.document.client.elements.embedsuppress.checked;
318:
319: this.document.server.elements.appletsuppress.value
320: =this.document.client.elements.appletsuppress.checked;
321:
322: this.document.server.elements.fontenhance.value
323: =this.document.client.elements.fontenhance.checked;
324:
325: this.document.server.elements.blackwhite.value
326: =this.document.client.elements.blackwhite.checked;
327:
328: this.document.server.elements.remember.value
329: =this.document.client.elements.remember.checked;
330:
331: uextkey=this.document.client.elements.uextkey.value;
332: lextkey=this.document.client.elements.lextkey.value;
333: initkeys();
334:
335: this.document.server.elements.upass0.value
336: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
337: this.document.server.elements.upass1.value
338: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
339: this.document.server.elements.upass2.value
340: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
341:
342: this.document.client.elements.uname.value='';
343: this.document.client.elements.upass$now.value='';
344:
345: this.document.server.submit();
346: return false;
347: }
348: </script>
349: ENDSCRIPT
350:
351: if ($fullgraph) {
352: $r->print(
353: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
354: }
355:
356: $r->print(<<ENDSERVERFORM);
357: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
358: <input type="hidden" name="logtoken" value="$logtoken" />
359: <input type="hidden" name="serverid" value="$lonhost" />
360: <input type="hidden" name="interface" value="$env{'form.interface'}" />
361: <input type="hidden" name="uname" value="" />
362: <input type="hidden" name="upass0" value="" />
363: <input type="hidden" name="upass1" value="" />
364: <input type="hidden" name="upass2" value="" />
365: <input type="hidden" name="udom" value="" />
366: <input type="hidden" name="imagesuppress" value="" />
367: <input type="hidden" name="appletsuppress" value="" />
368: <input type="hidden" name="embedsuppress" value="" />
369: <input type="hidden" name="fontenhance" value="" />
370: <input type="hidden" name="blackwhite" value="" />
371: <input type="hidden" name="remember" value="" />
372: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
373: <input type="hidden" name="localres" value="$env{'form.localres'}" />
374: </form>
375: ENDSERVERFORM
376: if ($fullgraph) { $r->print(<<ENDTOP);
377: <!-- The LON-CAPA Header -->
378: <tr>
379:
380: <!-- Row 1 Columns 2-4 -->
381: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
382: </tr>
383:
384: <!-- The gray bar that starts the two table frames -->
385: <tr>
386:
387: <!-- Row 2 Column 1 -->
388: <td width=182 height=27 bgcolor="$sidebg"> </td>
389:
390: <!-- Row 2 Column 2 -->
391: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
392:
393: <!-- Row 2 Column 3 -->
394: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
395:
396: <!-- Row 2 Column 4 -->
397: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
398: </tr>
399: <tr>
400:
401: <!-- A cell that will hold the 'access' and 'about' buttons -->
402: <!-- Row 3 Column 1 -->
403: <td valign="top" height=60 align="center" bgcolor="$sidebg">
404: <a href="/adm/login?interface=textual"><img src="$iconpath/$lt{'access'}" border=0 alt="Accessibility Options" /></a>
405: <br />
406: <a href="/adm/about.html"><img src="$iconpath/$lt{'about'}" border=0 alt="About LON-CAPA" /></a>
407: </td>
408:
409: <!-- The shaded space between the two main columns -->
410: <!-- Row 3 Column 2 -->
411: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
412:
413: <!-- The right main column holding the large LON-CAPA logo-->
414: <!-- Rows 3-4 Column 3 -->
415: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
416: <center>
417: <img src="$logo" alt="" />
418: </center>
419: </td>
420:
421: <!-- Row 3 Column 4 -->
422: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
423: </tr>
424: <tr>
425:
426: <!-- The entry form -->
427: <!-- Row 4 Column 1 -->
428: <td align="center" valign="middle" bgcolor="$sidebg">
429: ENDTOP
430: } else {
431: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
432: }
433: $r->print('<form name="client" onsubmit="return(send())">');
434: unless ($fullgraph) {
435: $r->print(<<ENDACCESSOPTIONS);
436: <h3>Select Accessibility Options</h3>
437: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
438: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
439: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
440: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
441: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
442: <p>If you have accessibility needs that are not addressed by this interface,
443: please
444: contact the system administrator at <tt>$sysadm</tt>.</p><br />
445: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
446: ENDACCESSOPTIONS
447: } else {
448: $r->print(<<ENDNOOPT);
449: <input type="hidden" name="imagesuppress" value="" />
450: <input type="hidden" name="embedsuppress" value="" />
451: <input type="hidden" name="appletsuppress" value="" />
452: <input type="hidden" name="fontenhance" value="" />
453: <input type="hidden" name="blackwhite" value="" />
454: <input type="hidden" name="remember" value="" />
455: ENDNOOPT
456: }
457: $r->print(<<ENDLOGIN);
458: <input type="hidden" name="lextkey" value="$lextkey">
459: <input type="hidden" name="uextkey" value="$uextkey">
460:
461: <!-- Start the sub-table for text and input alignment -->
462: <table border=0 cellspacing=0 cellpadding=0>
463: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
464: <tr>
465: <td bgcolor="$mainbg"><br /><font size=-1><b> $lt{'un'}:</b></font></td>
466: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
467: </tr>
468: <tr>
469: <td bgcolor="$mainbg"><font size=-1><b> $lt{'pw'}:</b></font></td>
470: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
471: </tr>
472: <tr>
473: <td bgcolor="$mainbg"><font size=-1><b> $lt{'dom'}:</b></font></td>
474: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
475: </tr>
476: <tr>
477: <td bgcolor="$mainbg"> <a href="/adm/loginproblems.html">$lt{'help'}</a></td>
478: <td bgcolor="$mainbg" valign="bottom" align="center">
479: <br />
480: <input type="submit" value="$lt{'log'}" />
481: </td>
482: </tr>
483: </table>
484: <!-- End sub-table -->
485: </form>
486: ENDLOGIN
487: if ($fullgraph) {
488: my $helpdeskscript;
489: my $contactblock = &contactdisplay(\%lt,$sysadm,$servadm,$version,$authdomain,\$helpdeskscript);
490: $r->print(<<ENDDOCUMENT);
491: </td>
492:
493: <!-- Row 4 Column 2 -->
494: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
495:
496: <!-- Row 4 Column 3 -->
497: <td bgcolor="$mainbg">$announcements</td>
498:
499: <!-- Row 4 Column 4 -->
500: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
501: </tr>
502: <tr>
503:
504: <!-- Row 5 Column 1 -->
505: <td bgcolor="$sidebg" valign="middle" align="left">
506: <br />
507: <table border=0 cellspacing=0 cellpadding=0>
508: <tr>
509: <td bgcolor="$sidebg" align="left" valign="top">
510: <small><b> $lt{'dom'}: </b></small>
511: </td>
512: <td bgcolor="$sidebg" align="left" valign="top">
513: <small><tt> $domain</tt></small>
514: </td>
515: </tr>
516: <tr>
517: <td bgcolor="$sidebg" align="left" valign="top">
518: <small><b> $lt{'serv'}: </b></small>
519: </td>
520: <td bgcolor="$sidebg" align="left" valign="top">
521: <small><tt> $lonhost ($role)</tt></small>
522: </td>
523: </tr>
524: <tr>
525: <td bgcolor="$sidebg" align="left" valign="top">
526: <small><b> $lt{'load'}: </b></small>
527: </td>
528: <td bgcolor="$sidebg" align="left" valign="top">
529: <small><tt> $loadpercent $lt{'perc'}</tt></small>
530: </td>
531: </tr>
532: <tr>
533: <td bgcolor="$sidebg" align="left" valign="top">
534: <small><b> $lt{'userload'}: </b></small>
535: </td>
536: <td bgcolor="$sidebg" align="left" valign="top">
537: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
538: </td>
539: </tr>
540: </table>
541: <br />
542: $contactblock
543: </td>
544:
545: <!-- Row 5 Column 2 -->
546: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
547:
548: <!-- Row 5 Column 3 -->
549: <td width="100%" valign="bottom" bgcolor="$mainbg">
550: $domainlogo
551: </td>
552:
553: <!-- Row 5 Column 4 -->
554: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
555: </tr>
556: <tr>
557:
558: <!-- Row 6 Column 1 -->
559: <td bgcolor="$sidebg"> </td>
560:
561: <!-- Row 6 Column 2 -->
562: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
563:
564: <!-- Row 6 Column 3 -->
565: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
566:
567: <!-- Row 6 Column 4 -->
568: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
569: </tr>
570: </table>
571:
572: <script type="text/javascript">
573: // the if prevents the script error if the browser can not handle this
574: if ( document.client.uname ) { document.client.uname.focus(); }
575: </script>
576: $helpdeskscript
577:
578: ENDDOCUMENT
579: }
580: $r->print('</body></html>');
581: return OK;
582: }
583:
584: sub contactdisplay {
585: my ($lt,$sysadm,$servadm,$version,$authdomain,$helpdeskscript) = @_;
586: my $contactblock;
587: my $showsysadm = 1;
588: my $showservadm = 1;
589: my $showhelpdesk = 0;
590: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
591: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
592: $showhelpdesk = 1;
593: }
594: if ($showsysadm) {
595: $contactblock .= '<b> '.$$lt{'sysadm'}.':</b><br />'.
596: '<tt> '.$sysadm.'</tt><br />';
597: }
598: if ($showservadm) {
599: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
600: '<tt> '.$servadm.'</tt><br /> <br />';
601: }
602: if ($showhelpdesk) {
603: $contactblock .= '<b> <a href="javascript:helpdesk()">'.$$lt{'helpdesk'}.'</a></b><br />';
604: my $thisurl = &Apache::lonnet::escape('/adm/login');
605: $$helpdeskscript = <<"ENDSCRIPT";
606: <script type="text/javascript">
607: function helpdesk() {
608: var codedom = document.client.udom.value;
609: if (codedom == '') {
610: codedom = "$authdomain";
611: }
612: var querystr = "origurl=$thisurl&codedom="+codedom;
613: document.location.href = "/adm/helpdesk?"+querystr;
614: return;
615: }
616: </script>
617: ENDSCRIPT
618: }
619: $contactblock .= <<"ENDBLOCK";
620: $version
621: ENDBLOCK
622: return $contactblock;
623: }
624:
625:
626: 1;
627: __END__
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