Annotation of loncom/auth/lonlogin.pm, revision 1.148
1.1 albertel 1: # The LearningOnline Network
2: # Login Screen
1.11 www 3: #
1.148 ! raeburn 4: # $Id: lonlogin.pm,v 1.147 2011/03/03 06:37:30 raeburn Exp $
1.11 www 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: #
1.14 albertel 28:
1.1 albertel 29: package Apache::lonlogin;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::File ();
1.63 albertel 34: use Apache::lonnet;
1.12 albertel 35: use Apache::loncommon();
1.49 www 36: use Apache::lonauth();
1.50 www 37: use Apache::lonlocal;
1.71 albertel 38: use Apache::migrateuser();
1.75 www 39: use lib '/home/httpd/lib/perl/';
40: use LONCAPA;
41:
1.1 albertel 42: sub handler {
43: my $r = shift;
1.71 albertel 44:
45: &Apache::loncommon::get_unprocessed_cgi
1.79 albertel 46: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
47: $ENV{'REDIRECT_QUERY_STRING'}),
1.71 albertel 48: ['interface','username','domain','firsturl','localpath','localres',
1.123 raeburn 49: 'token','role','symb']);
1.102 raeburn 50: if (!defined($env{'form.firsturl'})) {
51: &Apache::lonacc::get_posted_cgi($r,['firsturl']);
52: }
1.71 albertel 53:
54: # -- check if they are a migrating user
55: if (defined($env{'form.token'})) {
56: return &Apache::migrateuser::handler($r);
57: }
58:
1.53 www 59: &Apache::loncommon::no_cache($r);
60: &Apache::lonlocal::get_language_handle($r);
1.54 www 61: &Apache::loncommon::content_type($r,'text/html');
1.1 albertel 62: $r->send_http_header;
63: return OK if $r->header_only;
64:
1.49 www 65:
66: # Are we re-routing?
67: if (-e '/home/httpd/html/lon-status/reroute.txt') {
68: &Apache::lonauth::reroute($r);
69: return OK;
70: }
1.55 www 71:
1.143 raeburn 72: $env{'form.firsturl'} =~ s/(`)/'/g;
1.71 albertel 73:
1.55 www 74: # -------------------------------- Prevent users from attempting to login twice
1.95 albertel 75: my $handle = &Apache::lonnet::check_for_valid_session($r);
1.135 raeburn 76: if ($handle ne '') {
77: my $lonidsdir=$r->dir_config('lonIDsDir');
78: if ($handle=~/^publicuser\_/) {
1.70 www 79: # For "public user" - remove it, we apparently really want to login
1.135 raeburn 80: unlink($r->dir_config('lonIDsDir')."/$handle.id");
81: } else {
1.55 www 82: # Indeed, a valid token is found
1.135 raeburn 83: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
84: my $start_page =
85: &Apache::loncommon::start_page('Already logged in');
86: my $end_page =
87: &Apache::loncommon::end_page();
88: my $dest = '/adm/roles';
89: if ($env{'form.firsturl'} ne '') {
90: $dest = $env{'form.firsturl'};
91: }
92: $r->print(
1.100 bisitz 93: $start_page
1.103 bisitz 94: .'<h1>'.&mt('You are already logged in!').'</h1>'
1.117 hauer 95: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
1.125 raeburn 96: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
1.135 raeburn 97: .$end_page
1.100 bisitz 98: );
1.135 raeburn 99: return OK;
100: }
1.55 www 101: }
102:
103: # ---------------------------------------------------- No valid token, continue
1.16 www 104:
1.70 www 105: # ---------------------------- Not possible to really login to domain "public"
106: if ($env{'form.domain'} eq 'public') {
107: $env{'form.domain'}='';
108: $env{'form.username'}='';
109: }
1.32 www 110: # ----------------------------------------------------------- Process Interface
1.63 albertel 111: $env{'form.interface'}=~s/\W//g;
1.16 www 112:
1.32 www 113: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.94 albertel 114:
115: my $iconpath=
116: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
117:
1.126 raeburn 118: my $lonhost = $r->dir_config('lonHostID');
1.87 raeburn 119: my $domain = &Apache::lonnet::default_login_domain();
1.126 raeburn 120: if ($lonhost ne '') {
1.133 raeburn 121: my $redirect = &check_loginvia($domain,$lonhost);
122: if ($redirect) {
123: $r->print($redirect);
124: return OK;
125: }
1.126 raeburn 126: }
127:
1.63 albertel 128: if (($env{'form.domain'}) &&
1.89 albertel 129: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63 albertel 130: $domain=$env{'form.domain'};
1.46 www 131: }
1.1 albertel 132: my $role = $r->dir_config('lonRole');
133: my $loadlim = $r->dir_config('lonLoadLim');
1.145 www 134: my $uloadlim= $r->dir_config('lonUserLoadLim');
1.90 raeburn 135: my $servadm = $r->dir_config('lonAdmEMail');
1.1 albertel 136: my $tabdir = $r->dir_config('lonTabDir');
1.6 www 137: my $include = $r->dir_config('lonIncludes');
1.37 www 138: my $expire = $r->dir_config('lonExpire');
1.44 www 139: my $version = $r->dir_config('lonVersion');
1.88 albertel 140: my $host_name = &Apache::lonnet::hostname($lonhost);
1.1 albertel 141:
1.30 www 142: # --------------------------------------------- Default values for login fields
143:
1.63 albertel 144: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
145: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30 www 146:
147: # ---------------------------------------------------------- Determine own load
1.1 albertel 148: my $loadavg;
1.41 albertel 149: {
150: my $loadfile=Apache::File->new('/proc/loadavg');
151: $loadavg=<$loadfile>;
152: }
1.1 albertel 153: $loadavg =~ s/\s.*//g;
1.147 raeburn 154:
155: my ($loadpercent,$userloadpercent);
156: if ($loadlim) {
157: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
158: }
159: if ($uloadlim) {
160: $userloadpercent=&Apache::lonnet::userload();
161: }
1.1 albertel 162:
1.31 www 163: my $firsturl=
1.63 albertel 164: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.141 raeburn 165:
1.45 www 166: # ----------------------------------------------------------- Get announcements
167: my $announcements=&Apache::lonnet::getannounce();
1.6 www 168: # -------------------------------------------------------- Set login parameters
169:
170: my @hexstr=('0','1','2','3','4','5','6','7',
171: '8','9','a','b','c','d','e','f');
172: my $lkey='';
173: for (0..7) {
174: $lkey.=$hexstr[rand(15)];
175: }
176:
177: my $ukey='';
178: for (0..7) {
179: $ukey.=$hexstr[rand(15)];
180: }
181:
182: my $lextkey=hex($lkey);
1.15 www 183: if ($lextkey>2147483647) { $lextkey-=4294967296; }
184:
1.6 www 185: my $uextkey=hex($ukey);
1.15 www 186: if ($uextkey>2147483647) { $uextkey-=4294967296; }
187:
1.31 www 188: # -------------------------------------------------------- Store away log token
1.123 raeburn 189: my $tokenextras;
190: if ($env{'form.role'}) {
191: $tokenextras = '&role='.&escape($env{'form.role'});
192: }
193: if ($env{'form.symb'}) {
1.124 raeburn 194: if (!$tokenextras) {
195: $tokenextras = '&';
196: }
1.123 raeburn 197: $tokenextras .= '&symb='.&escape($env{'form.symb'});
198: }
1.6 www 199: my $logtoken=Apache::lonnet::reply(
1.123 raeburn 200: 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
1.6 www 201: $lonhost);
1.31 www 202:
1.148 ! raeburn 203: # -- If we cannot talk to ourselves, or hostID does not map to a hostname
! 204: # we are in serious trouble
1.31 www 205:
1.148 ! raeburn 206: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
! 207: if ($logtoken eq 'no_such_host') {
! 208: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
! 209: }
1.31 www 210: my $spares='';
1.64 albertel 211: my $last;
212: foreach my $hostid (sort
213: {
1.88 albertel 214: &Apache::lonnet::hostname($a) cmp
215: &Apache::lonnet::hostname($b);
1.64 albertel 216: }
217: keys(%Apache::lonnet::spareid)) {
1.58 matthew 218: next if ($hostid eq $lonhost);
1.88 albertel 219: my $hostname = &Apache::lonnet::hostname($hostid);
1.148 ! raeburn 220: next if (($last eq $hostname) || ($hostname eq ''));
1.58 matthew 221: $spares.='<br /><font size="+1"><a href="http://'.
1.88 albertel 222: $hostname.
1.58 matthew 223: '/adm/login?domain='.$authdomain.'">'.
1.88 albertel 224: $hostname.'</a>'.
1.106 bisitz 225: ' '.&mt('(preferred)').'</font>'.$/;
1.88 albertel 226: $last=$hostname;
1.58 matthew 227: }
1.148 ! raeburn 228: if ($spares) {
! 229: $spares.= '<br />';
! 230: }
1.107 tempelho 231: my %all_hostnames = &Apache::lonnet::all_hostnames();
232: foreach my $hostid (sort
233: {
234: &Apache::lonnet::hostname($a) cmp
235: &Apache::lonnet::hostname($b);
236: }
237: keys(%all_hostnames)) {
238: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
239: my $hostname = &Apache::lonnet::hostname($hostid);
1.148 ! raeburn 240: next if (($last eq $hostname) || ($hostname eq ''));
1.107 tempelho 241: $spares.='<br /><a href="http://'.
242: $hostname.
243: '/adm/login?domain='.$authdomain.'">'.
244: $hostname.'</a>';
245: $last=$hostname;
246: }
247: $r->print(
248: '<html>'
249: .'<head><title>'
250: .&mt('The LearningOnline Network with CAPA')
251: .'</title></head>'
252: .'<body bgcolor="#FFFFFF">'
253: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
254: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
1.148 ! raeburn 255: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
! 256: if ($spares) {
! 257: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
! 258: .'</p>'
! 259: .$spares);
! 260: }
! 261: $r->print('</body>'
1.107 tempelho 262: .'</html>'
1.148 ! raeburn 263: );
1.107 tempelho 264: return OK;
265: }
1.31 www 266:
267: # ----------------------------------------------- Apparently we are in business
1.107 tempelho 268: $servadm=~s/\,/\<br \/\>/g;
1.38 www 269:
1.21 www 270: # ----------------------------------------------------------- Front page design
1.119 tempelho 271: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
272: my $font=&Apache::loncommon::designparm('login.font',$domain);
273: my $link=&Apache::loncommon::designparm('login.link',$domain);
274: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
1.107 tempelho 275: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.119 tempelho 276: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
1.137 bisitz 277: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
278: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
279: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
1.107 tempelho 280: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
281: my $img=&Apache::loncommon::designparm('login.img',$domain);
1.141 raeburn 282: my $domainlogo=&Apache::loncommon::domainlogo($domain);
1.109 raeburn 283: my $showbanner = 1;
284: my $showmainlogo = 1;
285: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
286: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
287: }
288: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
289: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
290: }
1.107 tempelho 291: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
292: my $showcoursecat =
293: &Apache::loncommon::designparm('login.coursecatalog',$domain);
294: my $shownewuserlink =
295: &Apache::loncommon::designparm('login.newuser',$domain);
296: my $now=time;
297: my $js = (<<ENDSCRIPT);
298:
1.116 bisitz 299: <script type="text/javascript" language="JavaScript">
1.122 bisitz 300: // <![CDATA[
1.107 tempelho 301: function send()
302: {
303: this.document.server.elements.uname.value
304: =this.document.client.elements.uname.value;
305:
306: this.document.server.elements.udom.value
307: =this.document.client.elements.udom.value;
308:
309: uextkey=this.document.client.elements.uextkey.value;
310: lextkey=this.document.client.elements.lextkey.value;
311: initkeys();
312:
313: this.document.server.elements.upass0.value
314: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
315: this.document.server.elements.upass1.value
316: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
317: this.document.server.elements.upass2.value
318: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
1.6 www 319:
1.107 tempelho 320: this.document.client.elements.uname.value='';
321: this.document.client.elements.upass$now.value='';
1.6 www 322:
1.107 tempelho 323: this.document.server.submit();
324: return false;
325: }
1.139 raeburn 326:
327: function enableInput() {
1.144 bisitz 328: this.document.client.elements.upass$now.removeAttribute("readOnly");
329: this.document.client.elements.uname.removeAttribute("readOnly");
330: this.document.client.elements.udom.removeAttribute("readOnly");
1.139 raeburn 331: return;
332: }
333:
1.122 bisitz 334: // ]]>
1.107 tempelho 335: </script>
1.98 raeburn 336:
1.16 www 337: ENDSCRIPT
1.6 www 338:
1.98 raeburn 339: # --------------------------------------------------- Print login screen header
340:
1.118 tempelho 341: my %add_entries = (
1.108 tempelho 342: bgcolor => "$mainbg",
1.107 tempelho 343: text => "$font",
344: link => "$link",
345: vlink => "$vlink",
1.139 raeburn 346: alink => "$alink",
347: onload => 'javascript:enableInput();',);
1.107 tempelho 348:
349: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
350: { 'redirect' => [$expire,'/adm/roles'],
351: 'add_entries' => \%add_entries,
352: 'only_body' => 1,}));
1.98 raeburn 353:
354: # ----------------------------------------------------------------------- Texts
355:
356: my %lt=&Apache::lonlocal::texthash(
1.129 bisitz 357: 'un' => 'Username',
358: 'pw' => 'Password',
359: 'dom' => 'Domain',
360: 'perc' => 'percent',
361: 'load' => 'Server Load',
362: 'userload' => 'User Load',
363: 'catalog' => 'Course/Community Catalog',
364: 'log' => 'Log in',
365: 'help' => 'Log-in Help',
366: 'serv' => 'Server',
367: 'servadm' => 'Server Administration',
368: 'helpdesk' => 'Contact Helpdesk',
369: 'forgotpw' => 'Forgot password?',
370: 'newuser' => 'New User?',
371: );
1.98 raeburn 372: # -------------------------------------------------- Change password field name
1.131 jms 373:
1.107 tempelho 374: my $forgotpw = &forgotpwdisplay(%lt);
1.132 bisitz 375: $forgotpw .= '<br />' if $forgotpw;
1.135 raeburn 376: my $loginhelp = &loginhelpdisplay($authdomain,%lt);
1.132 bisitz 377: $loginhelp .= '<br />' if $loginhelp;
1.98 raeburn 378:
379: # ---------------------------------------------------- Serve out DES JavaScript
1.107 tempelho 380: {
381: my $jsh=Apache::File->new($include."/londes.js");
382: $r->print(<$jsh>);
383: }
1.98 raeburn 384: # ---------------------------------------------------------- Serve rest of page
385:
1.107 tempelho 386: $r->print(
1.137 bisitz 387: '<div class="LC_Box"'
388: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
389: );
1.6 www 390:
1.120 foxr 391: #
392: # If the loadbalancing yielded just http:// because perhaps there's no loadbalancing?
393: # then just us a relative link to authenticate:
394: #
395:
1.107 tempelho 396: $r->print(<<ENDSERVERFORM);
1.140 raeburn 397: <form name="server" action="/adm/authenticate" method="post" target="_top">
1.33 www 398: <input type="hidden" name="logtoken" value="$logtoken" />
399: <input type="hidden" name="serverid" value="$lonhost" />
400: <input type="hidden" name="uname" value="" />
1.65 www 401: <input type="hidden" name="upass0" value="" />
402: <input type="hidden" name="upass1" value="" />
403: <input type="hidden" name="upass2" value="" />
1.33 www 404: <input type="hidden" name="udom" value="" />
1.63 albertel 405: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
406: <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14 albertel 407: </form>
1.16 www 408: ENDSERVERFORM
1.108 tempelho 409: my $coursecatalog;
410: if (($showcoursecat eq '') || ($showcoursecat)) {
1.132 bisitz 411: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
1.108 tempelho 412: }
413: my $newuserlink;
414: if ($shownewuserlink) {
1.132 bisitz 415: $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
1.108 tempelho 416: }
1.137 bisitz 417: my $logintitle =
418: '<h2 class="LC_hcell"'
419: .' style="background:'.$loginbox_header_bgcol.';'
1.138 bisitz 420: .' color:'.$loginbox_header_textcol.'">'
421: .$lt{'log'}
422: .'</h2>';
1.108 tempelho 423:
424: my $noscript_warning='<noscript><span class="LC_warning"><b>'
425: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
426: .'</b></span></noscript>';
427: my $helpdeskscript;
428: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
1.132 bisitz 429: $authdomain,\$helpdeskscript);
1.107 tempelho 430:
1.108 tempelho 431: my $loginform=(<<LFORM);
1.122 bisitz 432: <form name="client" action="" onsubmit="return(send())">
1.115 bisitz 433: <input type="hidden" name="lextkey" value="$lextkey" />
434: <input type="hidden" name="uextkey" value="$uextkey" />
1.108 tempelho 435: <b><label for="uname">$lt{'un'}</label>:</b><br />
1.139 raeburn 436: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" /><br />
1.108 tempelho 437: <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
1.139 raeburn 438: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
1.108 tempelho 439: <b><label for="udom">$lt{'dom'}</label>:</b><br />
1.139 raeburn 440: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" /><br />
1.108 tempelho 441: <input type="submit" value="$lt{'log'}" />
442: </form>
443: LFORM
444:
1.109 raeburn 445: if ($showbanner) {
446: $r->print(<<HEADER);
447: <!-- The LON-CAPA Header -->
1.132 bisitz 448: <div style="background:$pgbg;margin:0;width:100%;">
449: <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
450: </div>
1.109 raeburn 451: HEADER
452: }
453: $r->print(<<ENDTOP);
1.146 bisitz 454: <div style="float:left;margin-top:0;">
1.137 bisitz 455: <div class="LC_Box" style="background:$loginbox_bg;">
1.112 muellerd 456: $logintitle
1.137 bisitz 457: $loginform
458: $noscript_warning
1.108 tempelho 459: </div>
1.107 tempelho 460:
1.137 bisitz 461: <div class="LC_Box" style="padding-top: 10px;">
1.132 bisitz 462: $loginhelp
463: $forgotpw
464: $contactblock
465: $newuserlink
1.130 bisitz 466: $coursecatalog
1.107 tempelho 467: </div>
1.118 tempelho 468: </div>
1.137 bisitz 469:
470: <div>
1.118 tempelho 471: ENDTOP
472: if ($showmainlogo) {
473: $r->print(' <img src="'.$logo.'" alt="" />'."\n");
474: }
475: $r->print(<<ENDTOP);
476: $announcements
1.137 bisitz 477: </div>
478: <hr style="clear:both;" />
1.108 tempelho 479: ENDTOP
1.147 raeburn 480: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
481: $domainrow = <<"END";
1.14 albertel 482: <tr>
1.110 muellerd 483: <td align="left" valign="top">
1.132 bisitz 484: <small><b>$lt{'dom'}: </b></small>
1.14 albertel 485: </td>
1.110 muellerd 486: <td align="left" valign="top">
1.14 albertel 487: <small><tt> $domain</tt></small>
488: </td>
489: </tr>
1.147 raeburn 490: END
491: $serverrow = <<"END";
1.14 albertel 492: <tr>
1.110 muellerd 493: <td align="left" valign="top">
1.132 bisitz 494: <small><b>$lt{'serv'}: </b></small>
1.14 albertel 495: </td>
1.110 muellerd 496: <td align="left" valign="top">
1.14 albertel 497: <small><tt> $lonhost ($role)</tt></small>
498: </td>
499: </tr>
1.147 raeburn 500: END
501: if ($loadlim) {
502: $loadrow = <<"END";
1.14 albertel 503: <tr>
1.110 muellerd 504: <td align="left" valign="top">
1.132 bisitz 505: <small><b>$lt{'load'}: </b></small>
1.14 albertel 506: </td>
1.110 muellerd 507: <td align="left" valign="top">
1.51 www 508: <small><tt> $loadpercent $lt{'perc'}</tt></small>
1.42 albertel 509: </td>
510: </tr>
1.147 raeburn 511: END
512: }
513: if ($uloadlim) {
514: $userloadrow = <<"END";
1.42 albertel 515: <tr>
1.110 muellerd 516: <td align="left" valign="top">
1.132 bisitz 517: <small><b>$lt{'userload'}: </b></small>
1.42 albertel 518: </td>
1.110 muellerd 519: <td align="left" valign="top">
1.51 www 520: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
1.14 albertel 521: </td>
522: </tr>
1.147 raeburn 523: END
524: }
525: if (($version ne '') && ($version ne '<!-- VERSION -->')) {
526: $versionrow = <<"END";
1.132 bisitz 527: <tr>
528: <td colspan="2" align="left">
529: <small>$version</small>
530: </td>
531: </tr>
1.147 raeburn 532: END
533: }
534:
535: $r->print(<<ENDDOCUMENT);
536: <div style="float: left;">
537: <table border="0" cellspacing="0" cellpadding="0">
538: $domainrow
539: $serverrow
540: $loadrow
541: $userloadrow
542: $versionrow
1.14 albertel 543: </table>
1.141 raeburn 544: </div>
545: <div style="float: right;">
546: $domainlogo
547: </div>
548: <br style="clear:both;" />
1.107 tempelho 549: </div>
1.25 bowersj2 550:
1.59 albertel 551: <script type="text/javascript">
1.122 bisitz 552: // <![CDATA[
1.59 albertel 553: // the if prevents the script error if the browser can not handle this
1.25 bowersj2 554: if ( document.client.uname ) { document.client.uname.focus(); }
1.122 bisitz 555: // ]]>
1.25 bowersj2 556: </script>
1.62 raeburn 557: $helpdeskscript
1.14 albertel 558:
1.1 albertel 559: ENDDOCUMENT
1.98 raeburn 560: my %endargs = ( 'noredirectlink' => 1, );
561: $r->print(&Apache::loncommon::end_page(\%endargs));
1.1 albertel 562: return OK;
1.60 raeburn 563: }
564:
1.133 raeburn 565: sub check_loginvia {
566: my ($domain,$lonhost) = @_;
567: if ($domain eq '' || $lonhost eq '') {
568: return;
569: }
570: my %domconfhash = &Apache::loncommon::get_domainconf($domain);
571: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
572: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
573: my $output;
574: if ($loginvia ne '') {
575: my $noredirect;
576: my $ip = $ENV{'REMOTE_ADDR'};
577: if ($ip eq '127.0.0.1') {
578: $noredirect = 1;
579: } else {
580: if ($loginvia_exempt ne '') {
581: my @exempt = split(',',$loginvia_exempt);
582: if (grep(/^\Q$ip\E$/,@exempt)) {
583: $noredirect = 1;
584: }
585: }
586: }
587: unless ($noredirect) {
588: my ($newhost,$path);
589: if ($loginvia =~ /:/) {
590: ($newhost,$path) = split(':',$loginvia);
591: } else {
592: $newhost = $loginvia;
593: }
594: if ($newhost ne $lonhost) {
595: if (&Apache::lonnet::hostname($newhost) ne '') {
596: $output = &redirect_page($newhost,$path);
597: }
598: }
599: }
600: }
601: return $output;
602: }
603:
1.126 raeburn 604: sub redirect_page {
1.133 raeburn 605: my ($desthost,$path) = @_;
1.126 raeburn 606: my $protocol = $Apache::lonnet::protocol{$desthost};
607: $protocol = 'http' if ($protocol ne 'https');
1.133 raeburn 608: unless ($path =~ m{^/}) {
609: $path = '/'.$path;
610: }
611: my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
1.126 raeburn 612: if ($env{'form.firsturl'} ne '') {
613: $url .='?firsturl='.$env{'form.firsturl'};
614: }
1.136 raeburn 615: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
1.126 raeburn 616: {'redirect' => [0,$url],});
617: my $end_page = &Apache::loncommon::end_page();
618: return $start_page.$end_page;
619: }
620:
1.60 raeburn 621: sub contactdisplay {
1.132 bisitz 622: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript) = @_;
1.60 raeburn 623: my $contactblock;
1.62 raeburn 624: my $showhelpdesk = 0;
625: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
626: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
627: $showhelpdesk = 1;
628: }
1.90 raeburn 629: if ($servadm && $showadminmail) {
1.130 bisitz 630: $contactblock .= $$lt{'servadm'}.':<br />'.
631: '<tt>'.$servadm.'</tt><br />';
1.90 raeburn 632: }
1.60 raeburn 633: if ($showhelpdesk) {
1.114 tempelho 634: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
1.75 www 635: my $thisurl = &escape('/adm/login');
1.62 raeburn 636: $$helpdeskscript = <<"ENDSCRIPT";
637: <script type="text/javascript">
1.122 bisitz 638: // <![CDATA[
1.62 raeburn 639: function helpdesk() {
640: var codedom = document.client.udom.value;
641: if (codedom == '') {
642: codedom = "$authdomain";
643: }
644: var querystr = "origurl=$thisurl&codedom="+codedom;
645: document.location.href = "/adm/helpdesk?"+querystr;
646: return;
647: }
1.122 bisitz 648: // ]]>
1.62 raeburn 649: </script>
650: ENDSCRIPT
1.60 raeburn 651: }
652: return $contactblock;
653: }
1.83 raeburn 654:
655: sub forgotpwdisplay {
1.84 raeburn 656: my (%lt) = @_;
1.83 raeburn 657: my $prompt_for_resetpw = 1;
658: if ($prompt_for_resetpw) {
1.107 tempelho 659: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
1.84 raeburn 660: }
661: return;
662: }
663:
664: sub loginhelpdisplay {
1.135 raeburn 665: my ($authdomain,%lt) = @_;
1.84 raeburn 666: my $login_help = 1;
667: if ($login_help) {
1.135 raeburn 668: my $dom = $authdomain;
669: if ($dom eq '') {
670: $dom = &Apache::lonnet::default_login_domain();
671: }
672: my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom);
673: my $loginhelp_url = $helpconfig{'helpsettings'}{'loginhelpurl'};
674: if ($loginhelp_url ne '') {
675: return '<a href="'.$loginhelp_url.'">'.$lt{'help'}.'</a>';
1.131 jms 676: } else {
1.135 raeburn 677: return '<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a>';
678: }
1.83 raeburn 679: }
680: return;
681: }
1.1 albertel 682:
1.90 raeburn 683: sub coursecatalog_link {
684: my ($linkname) = @_;
685: return <<"END";
1.137 bisitz 686: <a href="/adm/coursecatalog">$linkname</a>
1.90 raeburn 687: END
688: }
689:
1.101 raeburn 690: sub newuser_link {
691: my ($linkname) = @_;
1.130 bisitz 692: return '<a href="/adm/createaccount">'.$linkname.'</a>';
1.101 raeburn 693: }
694:
1.1 albertel 695: 1;
696: __END__
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