1: # The LearningOnline Network
2: # Login Screen
3: #
4: # $Id: lonlogin.pm,v 1.86 2007/01/13 20:39:57 raeburn 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 additional_machine_domains {
45: my @domains;
46: open(my $fh,"<".$Apache::lonnet::perlvar{'lonTabDir'}.'/expected_domains.tab');
47: while( my $line = <$fh>) {
48: $line =~ s/\s//g;
49: push(@domains,$line);
50: }
51: return @domains;
52: }
53:
54: sub handler {
55: my $r = shift;
56:
57: &Apache::loncommon::get_unprocessed_cgi
58: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
59: $ENV{'REDIRECT_QUERY_STRING'}),
60: ['interface','username','domain','firsturl','localpath','localres',
61: 'token']);
62:
63: # -- check if they are a migrating user
64: if (defined($env{'form.token'})) {
65: return &Apache::migrateuser::handler($r);
66: }
67:
68: &Apache::loncommon::no_cache($r);
69: &Apache::lonlocal::get_language_handle($r);
70: &Apache::loncommon::content_type($r,'text/html');
71: $r->send_http_header;
72: return OK if $r->header_only;
73:
74:
75: # Are we re-routing?
76: if (-e '/home/httpd/html/lon-status/reroute.txt') {
77: &Apache::lonauth::reroute($r);
78: return OK;
79: }
80:
81:
82: # -------------------------------- Prevent users from attempting to login twice
83: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
84: my $lonid=$cookies{'lonID'};
85: my $cookie;
86: if ($lonid) {
87: my $handle=&LONCAPA::clean_handle($lonid->value);
88: my $lonidsdir=$r->dir_config('lonIDsDir');
89: if (-e "$lonidsdir/$handle.id") {
90: # Is there an existing token file?
91: if ($handle=~/^publicuser\_/) {
92: # For "public user" - remove it, we apparently really want to login
93: unlink("$lonidsdir/$handle.id");
94: } elsif ($handle ne '') {
95: # Indeed, a valid token is found
96: my $start_page =
97: &Apache::loncommon::start_page('Already logged in');
98: my $end_page =
99: &Apache::loncommon::end_page();
100: $r->print(<<ENDFAILED);
101: $start_page
102: <h1>You are already logged in</h1>
103: <p>Please either <a href="/adm/roles">continue the current session</a> or
104: <a href="/adm/logout">logout</a>.</p>
105: <p>
106: <a href="/adm/loginproblems.html">Problems?</a></p>
107: $end_page
108: ENDFAILED
109: return OK;
110: }
111: }
112: }
113:
114: # ---------------------------------------------------- No valid token, continue
115:
116: # ---------------------------- Not possible to really login to domain "public"
117: if ($env{'form.domain'} eq 'public') {
118: $env{'form.domain'}='';
119: $env{'form.username'}='';
120: }
121: # ----------------------------------------------------------- Process Interface
122: $env{'form.interface'}=~s/\W//g;
123:
124: my $textbrowsers=$r->dir_config('lonTextBrowsers');
125: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
126:
127: foreach (split(/\:/,$textbrowsers)) {
128: if ($httpbrowser=~/$_/i) {
129: $env{'form.interface'}='textual';
130: }
131: }
132:
133: my $fullgraph=($env{'form.interface'} ne 'textual');
134: my $port_to_use=$r->dir_config('lonhttpdPort');
135: if (!defined($port_to_use)) {
136: $port_to_use='8080';
137: }
138: my $iconpath= 'http://'.$ENV{'HTTP_HOST'}.':'.$port_to_use.
139: $r->dir_config('lonIconsURL');
140: my $domain = $r->dir_config('lonDefDomain');
141: my $testdomain=(split(/\./,$ENV{'HTTP_HOST'}))[0];
142: foreach my $posdom (&Apache::lonnet::current_machine_domains(),
143: &additional_machine_domains()) {
144: if (lc($posdom) eq lc($testdomain)) { $domain=$posdom; }
145: }
146: if (($env{'form.domain'}) &&
147: ($Apache::lonnet::domaindescription{$env{'form.domain'}})) {
148: $domain=$env{'form.domain'};
149: }
150: my $role = $r->dir_config('lonRole');
151: my $loadlim = $r->dir_config('lonLoadLim');
152: my $lonhost = $r->dir_config('lonHostID');
153: my $tabdir = $r->dir_config('lonTabDir');
154: my $include = $r->dir_config('lonIncludes');
155: my $expire = $r->dir_config('lonExpire');
156: my $version = $r->dir_config('lonVersion');
157: my $host_name = $Apache::lonnet::hostname{$lonhost};
158:
159: # --------------------------------------------- Default values for login fields
160:
161: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
162: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
163:
164: # ---------------------------------------------------------- Determine own load
165: my $loadavg;
166: {
167: my $loadfile=Apache::File->new('/proc/loadavg');
168: $loadavg=<$loadfile>;
169: }
170: $loadavg =~ s/\s.*//g;
171: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
172: my $userloadpercent=&Apache::lonnet::userload();
173:
174: # ------------------------------------------------------- Do the load balancing
175: my $otherserver= &Apache::lonnet::absolute_url($host_name);
176: my $firsturl=
177: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
178: # ---------------------------------------- Are we access server and overloaded?
179: if (($role eq 'access') &&
180: (($userloadpercent>100.0)||($loadpercent>100.0))) {
181: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
182: if ($unloaded) { $otherserver=$unloaded; }
183: }
184:
185: # ----------------------------------------------------------- Get announcements
186: my $announcements=&Apache::lonnet::getannounce();
187: # -------------------------------------------------------- Set login parameters
188:
189: my @hexstr=('0','1','2','3','4','5','6','7',
190: '8','9','a','b','c','d','e','f');
191: my $lkey='';
192: for (0..7) {
193: $lkey.=$hexstr[rand(15)];
194: }
195:
196: my $ukey='';
197: for (0..7) {
198: $ukey.=$hexstr[rand(15)];
199: }
200:
201: my $lextkey=hex($lkey);
202: if ($lextkey>2147483647) { $lextkey-=4294967296; }
203:
204: my $uextkey=hex($ukey);
205: if ($uextkey>2147483647) { $uextkey-=4294967296; }
206:
207: # -------------------------------------------------------- Store away log token
208: my $logtoken=Apache::lonnet::reply(
209: 'tmpput:'.$ukey.$lkey.'&'.$firsturl,
210: $lonhost);
211:
212: # ------------------- If we cannot talk to ourselves, we are in serious trouble
213:
214: if ($logtoken eq 'con_lost') {
215: my $spares='';
216: my $last;
217: foreach my $hostid (sort
218: {
219: $Apache::lonnet::hostname{$a} cmp
220: $Apache::lonnet::hostname{$b};
221: }
222: keys(%Apache::lonnet::spareid)) {
223: next if ($hostid eq $lonhost);
224: next if ($last eq $Apache::lonnet::hostname{$hostid});
225: $spares.='<br /><font size="+1"><a href="http://'.
226: $Apache::lonnet::hostname{$hostid}.
227: '/adm/login?domain='.$authdomain.'">'.
228: $Apache::lonnet::hostname{$hostid}.'</a>'.
229: ' (preferred)</font>'.$/;
230: $last=$Apache::lonnet::hostname{$hostid};
231: }
232: $spares.= '<br />';
233: foreach my $hostid (sort
234: {
235: $Apache::lonnet::hostname{$a} cmp
236: $Apache::lonnet::hostname{$b};
237: }
238: keys(%Apache::lonnet::hostname)) {
239: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
240: next if ($last eq $Apache::lonnet::hostname{$hostid});
241: $spares.='<br /><a href="http://'.
242: $Apache::lonnet::hostname{$hostid}.
243: '/adm/login?domain='.$authdomain.'">'.
244: $Apache::lonnet::hostname{$hostid}.'</a>';
245: $last=$Apache::lonnet::hostname{$hostid};
246: }
247: $r->print(<<ENDTROUBLE);
248: <html>
249: <head><title>The LearningOnline Network with CAPA</title></head>
250: <body bgcolor="#FFFFFF">
251: <img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />
252: <h3>This LON-CAPA server is temporarily not available for login</h3>
253: <p>Please attempt to login to one of the following servers:</p>$spares
254: </body>
255: </html>
256: ENDTROUBLE
257: return OK;
258: }
259:
260: # ----------------------------------------------- Apparently we are in business
261:
262: my $domainlogo=&Apache::loncommon::domainlogo($domain);
263:
264: # --------------------------------------------------- Print login screen header
265: $r->print(<<ENDHEADER);
266: <html>
267: <head>
268: <meta HTTP-EQUIV="Refresh" CONTENT="$expire; url=/adm/roles" />
269: <title>The LearningOnline Network with CAPA Login</title>
270: </head>
271: ENDHEADER
272: # ---------------------------------------------------- Serve out DES JavaScript
273: {
274: my $jsh=Apache::File->new($include."/londes.js");
275: $r->print(<$jsh>);
276: }
277:
278: # ----------------------------------------------------------- Front page design
279: my $pgbg=
280: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
281: my $font=
282: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
283: my $link=
284: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
285: my $vlink=
286: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
287: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
288: my $mainbg=
289: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
290: my $sidebg=
291: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
292: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
293: my $img=&Apache::loncommon::designparm('login.img',$domain);
294:
295: # ----------------------------------------------------------------------- Texts
296:
297: my %lt=&Apache::lonlocal::texthash(
298: 'un' => 'Username',
299: 'pw' => 'Password',
300: 'dom' => 'Domain',
301: 'perc' => 'percent',
302: 'load' => 'Load',
303: 'userload' => 'User Load',
304: 'about' => 'About LON-CAPA',
305: 'access' => 'Accessibility Options',
306: 'catalog' => 'Course Catalog',
307: 'auth' => 'userauthentication.gif',
308: 'log' => 'Log in',
309: 'help' => 'Log-in Help',
310: 'serv' => 'Server',
311: 'helpdesk' => 'Contact Helpdesk',
312: 'forgotpw' => 'Forgot password?');
313: # -------------------------------------------------- Change password field name
314: my $now=time;
315: my $forgotpw = &forgotpwdisplay(%lt);
316: my $loginhelp = &loginhelpdisplay(%lt);
317: # ---------------------------------------------------------- Serve rest of page
318: $r->print(<<ENDSCRIPT);
319:
320: <body bgcolor="$pgbg" text="$font" link="$link" vlink="$vlink" alink="$alink"
321: topmargin=0 leftmargin=0 marginwidth=0 marginheight=0>
322:
323: <script language="JavaScript">
324: function send()
325: {
326: this.document.server.elements.uname.value
327: =this.document.client.elements.uname.value;
328:
329: this.document.server.elements.udom.value
330: =this.document.client.elements.udom.value;
331:
332: this.document.server.elements.imagesuppress.value
333: =this.document.client.elements.imagesuppress.checked;
334:
335: this.document.server.elements.embedsuppress.value
336: =this.document.client.elements.embedsuppress.checked;
337:
338: this.document.server.elements.appletsuppress.value
339: =this.document.client.elements.appletsuppress.checked;
340:
341: this.document.server.elements.fontenhance.value
342: =this.document.client.elements.fontenhance.checked;
343:
344: this.document.server.elements.blackwhite.value
345: =this.document.client.elements.blackwhite.checked;
346:
347: this.document.server.elements.remember.value
348: =this.document.client.elements.remember.checked;
349:
350: uextkey=this.document.client.elements.uextkey.value;
351: lextkey=this.document.client.elements.lextkey.value;
352: initkeys();
353:
354: this.document.server.elements.upass0.value
355: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
356: this.document.server.elements.upass1.value
357: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
358: this.document.server.elements.upass2.value
359: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
360:
361: this.document.client.elements.uname.value='';
362: this.document.client.elements.upass$now.value='';
363:
364: this.document.server.submit();
365: return false;
366: }
367: </script>
368: ENDSCRIPT
369:
370: if ($fullgraph) {
371: $r->print(
372: '<table width="100%" cellpadding=0 cellspacing=0 border=0>');
373: }
374:
375: $r->print(<<ENDSERVERFORM);
376: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
377: <input type="hidden" name="logtoken" value="$logtoken" />
378: <input type="hidden" name="serverid" value="$lonhost" />
379: <input type="hidden" name="interface" value="$env{'form.interface'}" />
380: <input type="hidden" name="uname" value="" />
381: <input type="hidden" name="upass0" value="" />
382: <input type="hidden" name="upass1" value="" />
383: <input type="hidden" name="upass2" value="" />
384: <input type="hidden" name="udom" value="" />
385: <input type="hidden" name="imagesuppress" value="" />
386: <input type="hidden" name="appletsuppress" value="" />
387: <input type="hidden" name="embedsuppress" value="" />
388: <input type="hidden" name="fontenhance" value="" />
389: <input type="hidden" name="blackwhite" value="" />
390: <input type="hidden" name="remember" value="" />
391: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
392: <input type="hidden" name="localres" value="$env{'form.localres'}" />
393: </form>
394: ENDSERVERFORM
395: if ($fullgraph) { $r->print(<<ENDTOP);
396: <!-- The LON-CAPA Header -->
397: <tr>
398:
399: <!-- Row 1 Columns 2-4 -->
400: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg"><img src="$img" border=0 alt="The Learning Online Network with CAPA" /></td>
401: </tr>
402:
403: <!-- The gray bar that starts the two table frames -->
404: <tr>
405:
406: <!-- Row 2 Column 1 -->
407: <td width=182 height=27 bgcolor="$sidebg"> </td>
408:
409: <!-- Row 2 Column 2 -->
410: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
411:
412: <!-- Row 2 Column 3 -->
413: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
414:
415: <!-- Row 2 Column 4 -->
416: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
417: </tr>
418: <tr>
419:
420: <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
421: <!-- Row 3 Column 1 -->
422: <td valign="top" height="60" align="left" bgcolor="$sidebg">
423: <table cellpadding="0" cellspacing="2" border="0">
424: <tr>
425: <td> </td>
426: <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
427: </tr>
428: <tr>
429: <td> </td>
430: <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
431: </tr>
432: <tr>
433: <td> </td>
434: <td><a href="/adm/coursecatalog"><b>$lt{'catalog'}</b></a></td>
435: </tr>
436: <tr>
437: <td colspan="2"> </td>
438: </tr>
439: </table>
440: </td>
441: <!-- The shaded space between the two main columns -->
442: <!-- Row 3 Column 2 -->
443: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
444:
445: <!-- The right main column holding the large LON-CAPA logo-->
446: <!-- Rows 3-4 Column 3 -->
447: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
448: <center>
449: <img src="$logo" alt="" />
450: </center>
451: </td>
452:
453: <!-- Row 3 Column 4 -->
454: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
455: </tr>
456: <tr>
457:
458: <!-- The entry form -->
459: <!-- Row 4 Column 1 -->
460: <td align="center" valign="middle" bgcolor="$sidebg">
461: ENDTOP
462: } else {
463: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1><h2>Text-based Interface Login</h2>'.$announcements);
464: }
465: $r->print('<form name="client" onsubmit="return(send())">');
466: unless ($fullgraph) {
467: $r->print(<<ENDACCESSOPTIONS);
468: <h3>Select Accessibility Options</h3>
469: <label><input type="checkbox" name="imagesuppress" /> Suppress rendering of images</label><br />
470: <label><input type="checkbox" name="appletsuppress" /> Suppress Java applets</label><br />
471: <label><input type="checkbox" name="embedsuppress" /> Suppress rendering of embedded multimedia</label><br />
472: <label><input type="checkbox" name="fontenhance" /> Increase font size</label><br />
473: <label><input type="checkbox" name="blackwhite" /> Switch to black and white mode</label><br />
474: <input type="checkbox" name="remember" /> Remember these settings for next login<hr />
475: ENDACCESSOPTIONS
476: } else {
477: $r->print(<<ENDNOOPT);
478: <input type="hidden" name="imagesuppress" value="" />
479: <input type="hidden" name="embedsuppress" value="" />
480: <input type="hidden" name="appletsuppress" value="" />
481: <input type="hidden" name="fontenhance" value="" />
482: <input type="hidden" name="blackwhite" value="" />
483: <input type="hidden" name="remember" value="" />
484: ENDNOOPT
485: }
486: $r->print(<<ENDLOGIN);
487: <input type="hidden" name="lextkey" value="$lextkey">
488: <input type="hidden" name="uextkey" value="$uextkey">
489:
490: <!-- Start the sub-table for text and input alignment -->
491: <table border=0 cellspacing=0 cellpadding=0>
492: <tr><td bgcolor="$sidebg" colspan=2><img src="$iconpath/$lt{'auth'}" alt="User Authentication" /></td></tr>
493: <tr>
494: <td bgcolor="$mainbg"><br /><font size=-1><b> $lt{'un'}:</b></font></td>
495: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
496: </tr>
497: <tr>
498: <td bgcolor="$mainbg"><font size=-1><b> $lt{'pw'}:</b></font></td>
499: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
500: </tr>
501: <tr>
502: <td bgcolor="$mainbg"><font size=-1><b> $lt{'dom'}:</b></font></td>
503: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
504: </tr>
505: <tr>
506: <td bgcolor="$mainbg"> </td>
507: <td bgcolor="$mainbg" valign="bottom" align="center">
508: <br />
509: <input type="submit" value="$lt{'log'}" />
510: </td>
511: </tr>
512: <tr>
513: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
514: $loginhelp
515: $forgotpw
516: </td>
517: </tr>
518: </table>
519: <!-- End sub-table -->
520: </form>
521: ENDLOGIN
522: if ($fullgraph) {
523: my $helpdeskscript;
524: my $contactblock = &contactdisplay(\%lt,$version,$authdomain,\$helpdeskscript);
525: $r->print(<<ENDDOCUMENT);
526: </td>
527:
528: <!-- Row 4 Column 2 -->
529: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
530:
531: <!-- Row 4 Column 3 -->
532: <td bgcolor="$mainbg">$announcements</td>
533:
534: <!-- Row 4 Column 4 -->
535: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
536: </tr>
537: <tr>
538:
539: <!-- Row 5 Column 1 -->
540: <td bgcolor="$sidebg" valign="middle" align="left">
541: <br />
542: <table border=0 cellspacing=0 cellpadding=0>
543: <tr>
544: <td bgcolor="$sidebg" align="left" valign="top">
545: <small><b> $lt{'dom'}: </b></small>
546: </td>
547: <td bgcolor="$sidebg" align="left" valign="top">
548: <small><tt> $domain</tt></small>
549: </td>
550: </tr>
551: <tr>
552: <td bgcolor="$sidebg" align="left" valign="top">
553: <small><b> $lt{'serv'}: </b></small>
554: </td>
555: <td bgcolor="$sidebg" align="left" valign="top">
556: <small><tt> $lonhost ($role)</tt></small>
557: </td>
558: </tr>
559: <tr>
560: <td bgcolor="$sidebg" align="left" valign="top">
561: <small><b> $lt{'load'}: </b></small>
562: </td>
563: <td bgcolor="$sidebg" align="left" valign="top">
564: <small><tt> $loadpercent $lt{'perc'}</tt></small>
565: </td>
566: </tr>
567: <tr>
568: <td bgcolor="$sidebg" align="left" valign="top">
569: <small><b> $lt{'userload'}: </b></small>
570: </td>
571: <td bgcolor="$sidebg" align="left" valign="top">
572: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
573: </td>
574: </tr>
575: </table>
576: <br />
577: $contactblock
578: </td>
579:
580: <!-- Row 5 Column 2 -->
581: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
582:
583: <!-- Row 5 Column 3 -->
584: <td width="100%" valign="bottom" bgcolor="$mainbg">
585: $domainlogo
586: </td>
587:
588: <!-- Row 5 Column 4 -->
589: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
590: </tr>
591: <tr>
592:
593: <!-- Row 6 Column 1 -->
594: <td bgcolor="$sidebg"> </td>
595:
596: <!-- Row 6 Column 2 -->
597: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
598:
599: <!-- Row 6 Column 3 -->
600: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
601:
602: <!-- Row 6 Column 4 -->
603: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
604: </tr>
605: </table>
606:
607: <script type="text/javascript">
608: // the if prevents the script error if the browser can not handle this
609: if ( document.client.uname ) { document.client.uname.focus(); }
610: </script>
611: $helpdeskscript
612:
613: ENDDOCUMENT
614: }
615: $r->print('</body></html>');
616: return OK;
617: }
618:
619: sub contactdisplay {
620: my ($lt,$version,$authdomain,$helpdeskscript) = @_;
621: my $contactblock;
622: my $showhelpdesk = 0;
623: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
624: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
625: $showhelpdesk = 1;
626: }
627: if ($showhelpdesk) {
628: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
629: my $thisurl = &escape('/adm/login');
630: $$helpdeskscript = <<"ENDSCRIPT";
631: <script type="text/javascript">
632: function helpdesk() {
633: var codedom = document.client.udom.value;
634: if (codedom == '') {
635: codedom = "$authdomain";
636: }
637: var querystr = "origurl=$thisurl&codedom="+codedom;
638: document.location.href = "/adm/helpdesk?"+querystr;
639: return;
640: }
641: </script>
642: ENDSCRIPT
643: }
644: $contactblock .= <<"ENDBLOCK";
645: $version
646: ENDBLOCK
647: return $contactblock;
648: }
649:
650: sub forgotpwdisplay {
651: my (%lt) = @_;
652: my $prompt_for_resetpw = 1;
653: if ($prompt_for_resetpw) {
654: return '<br /> <a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br /><br />';
655: }
656: return;
657: }
658:
659: sub loginhelpdisplay {
660: my (%lt) = @_;
661: my $login_help = 1;
662: if ($login_help) {
663: return ' <a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
664: }
665: return;
666: }
667:
668: 1;
669: __END__
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