Annotation of loncom/auth/lonlogin.pm, revision 1.106.4.8
1.1 albertel 1: # The LearningOnline Network
2: # Login Screen
1.11 www 3: #
1.106.4.8! raeburn 4: # $Id: lonlogin.pm,v 1.106.4.7 2010/03/10 02:49:49 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: $ENV{'REDIRECT_QUERY_STRING'}),
1.71 albertel 48: ['interface','username','domain','firsturl','localpath','localres',
1.106.4.3 raeburn 49: 'token','role','symb']);
1.102 raeburn 50: if (!defined($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:
1.71 albertel 72:
1.55 www 73: # -------------------------------- Prevent users from attempting to login twice
1.95 albertel 74: my $handle = &Apache::lonnet::check_for_valid_session($r);
75: if ($handle=~/^publicuser\_/) {
1.70 www 76: # For "public user" - remove it, we apparently really want to login
1.95 albertel 77: unlink($r->dir_config('lonIDsDir')."/$handle.id");
78: } elsif ($handle ne '') {
1.55 www 79: # Indeed, a valid token is found
1.95 albertel 80: my $start_page =
81: &Apache::loncommon::start_page('Already logged in');
82: my $end_page =
83: &Apache::loncommon::end_page();
1.106.4.4 raeburn 84: my $dest = '/adm/roles';
85: if ($env{'form.firsturl'} ne '') {
86: $dest = $env{'form.firsturl'};
87: }
1.100 bisitz 88: $r->print(
89: $start_page
1.103 bisitz 90: .'<h1>'.&mt('You are already logged in!').'</h1>'
1.106.4.1 raeburn 91: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
1.106.4.4 raeburn 92: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
1.100 bisitz 93: .'<p><a href="/adm/loginproblems.html">'.&mt('Login problems?').'</a></p>'
94: .$end_page
95: );
1.95 albertel 96: return OK;
1.55 www 97: }
98:
99: # ---------------------------------------------------- No valid token, continue
1.16 www 100:
1.70 www 101: # ---------------------------- Not possible to really login to domain "public"
102: if ($env{'form.domain'} eq 'public') {
103: $env{'form.domain'}='';
104: $env{'form.username'}='';
105: }
1.32 www 106: # ----------------------------------------------------------- Process Interface
1.63 albertel 107: $env{'form.interface'}=~s/\W//g;
1.16 www 108:
1.32 www 109: my $textbrowsers=$r->dir_config('lonTextBrowsers');
110: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
111:
112: foreach (split(/\:/,$textbrowsers)) {
113: if ($httpbrowser=~/$_/i) {
1.63 albertel 114: $env{'form.interface'}='textual';
1.32 www 115: }
116: }
117:
1.63 albertel 118: my $fullgraph=($env{'form.interface'} ne 'textual');
1.94 albertel 119:
120: my $iconpath=
121: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
122:
1.106.4.7 raeburn 123: my $lonhost = $r->dir_config('lonHostID');
1.87 raeburn 124: my $domain = &Apache::lonnet::default_login_domain();
1.106.4.7 raeburn 125: if ($lonhost ne '') {
126: my $redirect = &check_loginvia($domain,$lonhost);
127: if ($redirect) {
128: $r->print($redirect);
129: return OK;
130: }
131: }
132:
1.63 albertel 133: if (($env{'form.domain'}) &&
1.89 albertel 134: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63 albertel 135: $domain=$env{'form.domain'};
1.46 www 136: }
1.1 albertel 137: my $role = $r->dir_config('lonRole');
138: my $loadlim = $r->dir_config('lonLoadLim');
1.90 raeburn 139: my $servadm = $r->dir_config('lonAdmEMail');
1.1 albertel 140: my $tabdir = $r->dir_config('lonTabDir');
1.6 www 141: my $include = $r->dir_config('lonIncludes');
1.37 www 142: my $expire = $r->dir_config('lonExpire');
1.44 www 143: my $version = $r->dir_config('lonVersion');
1.88 albertel 144: my $host_name = &Apache::lonnet::hostname($lonhost);
1.1 albertel 145:
1.30 www 146: # --------------------------------------------- Default values for login fields
147:
1.63 albertel 148: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
149: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30 www 150:
151: # ---------------------------------------------------------- Determine own load
1.1 albertel 152: my $loadavg;
1.41 albertel 153: {
154: my $loadfile=Apache::File->new('/proc/loadavg');
155: $loadavg=<$loadfile>;
156: }
1.1 albertel 157: $loadavg =~ s/\s.*//g;
1.57 matthew 158: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41 albertel 159: my $userloadpercent=&Apache::lonnet::userload();
1.1 albertel 160:
1.30 www 161: # ------------------------------------------------------- Do the load balancing
1.80 albertel 162: my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31 www 163: my $firsturl=
1.63 albertel 164: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.97 albertel 165: # ---------------------------------------------------------- Are we overloaded?
166: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47 albertel 167: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
168: if ($unloaded) { $otherserver=$unloaded; }
1.1 albertel 169: }
1.6 www 170:
1.45 www 171: # ----------------------------------------------------------- Get announcements
172: my $announcements=&Apache::lonnet::getannounce();
1.6 www 173: # -------------------------------------------------------- Set login parameters
174:
175: my @hexstr=('0','1','2','3','4','5','6','7',
176: '8','9','a','b','c','d','e','f');
177: my $lkey='';
178: for (0..7) {
179: $lkey.=$hexstr[rand(15)];
180: }
181:
182: my $ukey='';
183: for (0..7) {
184: $ukey.=$hexstr[rand(15)];
185: }
186:
187: my $lextkey=hex($lkey);
1.15 www 188: if ($lextkey>2147483647) { $lextkey-=4294967296; }
189:
1.6 www 190: my $uextkey=hex($ukey);
1.15 www 191: if ($uextkey>2147483647) { $uextkey-=4294967296; }
192:
1.31 www 193: # -------------------------------------------------------- Store away log token
1.106.4.3 raeburn 194: my $tokenextras;
195: if ($env{'form.role'}) {
196: $tokenextras = '&role='.&escape($env{'form.role'});
197: }
198: if ($env{'form.symb'}) {
199: if (!$tokenextras) {
200: $tokenextras = '&';
201: }
202: $tokenextras .= '&symb='.&escape($env{'form.symb'});
203: }
1.6 www 204: my $logtoken=Apache::lonnet::reply(
1.106.4.3 raeburn 205: 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
1.6 www 206: $lonhost);
1.31 www 207:
208: # ------------------- If we cannot talk to ourselves, we are in serious trouble
209:
210: if ($logtoken eq 'con_lost') {
211: my $spares='';
1.64 albertel 212: my $last;
213: foreach my $hostid (sort
214: {
1.88 albertel 215: &Apache::lonnet::hostname($a) cmp
216: &Apache::lonnet::hostname($b);
1.64 albertel 217: }
218: keys(%Apache::lonnet::spareid)) {
1.58 matthew 219: next if ($hostid eq $lonhost);
1.88 albertel 220: my $hostname = &Apache::lonnet::hostname($hostid);
221: next if ($last eq $hostname);
1.58 matthew 222: $spares.='<br /><font size="+1"><a href="http://'.
1.88 albertel 223: $hostname.
1.58 matthew 224: '/adm/login?domain='.$authdomain.'">'.
1.88 albertel 225: $hostname.'</a>'.
1.106 bisitz 226: ' '.&mt('(preferred)').'</font>'.$/;
1.88 albertel 227: $last=$hostname;
1.58 matthew 228: }
229: $spares.= '<br />';
1.88 albertel 230: my %all_hostnames = &Apache::lonnet::all_hostnames();
1.64 albertel 231: foreach my $hostid (sort
232: {
1.88 albertel 233: &Apache::lonnet::hostname($a) cmp
234: &Apache::lonnet::hostname($b);
1.64 albertel 235: }
1.88 albertel 236: keys(%all_hostnames)) {
1.58 matthew 237: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
1.88 albertel 238: my $hostname = &Apache::lonnet::hostname($hostid);
239: next if ($last eq $hostname);
1.58 matthew 240: $spares.='<br /><a href="http://'.
1.88 albertel 241: $hostname.
1.58 matthew 242: '/adm/login?domain='.$authdomain.'">'.
1.88 albertel 243: $hostname.'</a>';
244: $last=$hostname;
1.31 www 245: }
1.103 bisitz 246: $r->print(
247: '<html>'
248: .'<head><title>'
249: .&mt('The LearningOnline Network with CAPA')
250: .'</title></head>'
251: .'<body bgcolor="#FFFFFF">'
252: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
253: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
254: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'
255: .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'
256: .$spares
257: .'</body>'
258: .'</html>'
259: );
1.31 www 260: return OK;
261: }
262:
263: # ----------------------------------------------- Apparently we are in business
1.90 raeburn 264: $servadm=~s/\,/\<br \/\>/g;
1.38 www 265:
1.21 www 266: # ----------------------------------------------------------- Front page design
1.35 www 267: my $pgbg=
1.46 www 268: ($fullgraph?&Apache::loncommon::designparm('login.pgbg',$domain):'#FFFFFF');
1.35 www 269: my $font=
1.46 www 270: ($fullgraph?&Apache::loncommon::designparm('login.font',$domain):'#000000');
1.35 www 271: my $link=
1.46 www 272: ($fullgraph?&Apache::loncommon::designparm('login.link',$domain):'#0000FF');
1.35 www 273: my $vlink=
1.46 www 274: ($fullgraph?&Apache::loncommon::designparm('login.vlink',$domain):'#0000FF');
275: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.35 www 276: my $mainbg=
1.46 www 277: ($fullgraph?&Apache::loncommon::designparm('login.mainbg',$domain):'#FFFFFF');
1.35 www 278: my $sidebg=
1.46 www 279: ($fullgraph?&Apache::loncommon::designparm('login.sidebg',$domain):'#FFFFFF');
1.98 raeburn 280: my $textcol =
281: ($fullgraph?&Apache::loncommon::designparm('login.textcol',$domain):'#000000');
282: my $bgcol =
283: ($fullgraph?&Apache::loncommon::designparm('login.bgcol',$domain):'#FFFFFF');
1.46 www 284: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
285: my $img=&Apache::loncommon::designparm('login.img',$domain);
1.90 raeburn 286: my $domainlogo=&Apache::loncommon::domainlogo($domain);
1.98 raeburn 287: my $login=&Apache::loncommon::designparm('login.login',$domain);
288: if ($login eq '') {
289: $login = $iconpath.'/'.&mt('userauthentication.gif');
290: }
1.106.4.1 raeburn 291: my $showbanner = 1;
292: my $showmainlogo = 1;
293: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
294: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
295: }
296: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
297: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
298: }
1.98 raeburn 299: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
1.90 raeburn 300: my $showcoursecat =
301: &Apache::loncommon::designparm('login.coursecatalog',$domain);
1.98 raeburn 302: my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
1.101 raeburn 303: my $shownewuserlink =
304: &Apache::loncommon::designparm('login.newuser',$domain);
1.66 www 305: my $now=time;
1.98 raeburn 306: my $js = (<<ENDSCRIPT);
1.6 www 307:
1.106.4.1 raeburn 308: <script type="text/javascript">
1.106.4.2 raeburn 309: // <![CDATA[
1.14 albertel 310: function send()
311: {
1.98 raeburn 312: this.document.server.elements.uname.value
1.6 www 313: =this.document.client.elements.uname.value;
314:
315: this.document.server.elements.udom.value
316: =this.document.client.elements.udom.value;
317:
1.33 www 318: this.document.server.elements.imagesuppress.value
1.36 www 319: =this.document.client.elements.imagesuppress.checked;
1.33 www 320:
321: this.document.server.elements.embedsuppress.value
1.36 www 322: =this.document.client.elements.embedsuppress.checked;
1.33 www 323:
1.34 www 324: this.document.server.elements.appletsuppress.value
1.36 www 325: =this.document.client.elements.appletsuppress.checked;
1.34 www 326:
1.33 www 327: this.document.server.elements.fontenhance.value
1.36 www 328: =this.document.client.elements.fontenhance.checked;
1.33 www 329:
330: this.document.server.elements.blackwhite.value
1.36 www 331: =this.document.client.elements.blackwhite.checked;
1.33 www 332:
1.35 www 333: this.document.server.elements.remember.value
1.36 www 334: =this.document.client.elements.remember.checked;
1.35 www 335:
1.6 www 336: uextkey=this.document.client.elements.uextkey.value;
337: lextkey=this.document.client.elements.lextkey.value;
338: initkeys();
339:
1.65 www 340: this.document.server.elements.upass0.value
1.98 raeburn 341: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
342: this.document.server.elements.upass1.value
343: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
344: this.document.server.elements.upass2.value
345: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
1.66 www 346:
347: this.document.client.elements.uname.value='';
348: this.document.client.elements.upass$now.value='';
1.6 www 349:
350: this.document.server.submit();
1.98 raeburn 351: return false;
1.6 www 352: }
1.106.4.2 raeburn 353: // ]]>
1.14 albertel 354: </script>
1.98 raeburn 355:
1.16 www 356: ENDSCRIPT
1.6 www 357:
1.98 raeburn 358: # --------------------------------------------------- Print login screen header
359:
360: my %add_entries = (topmargin => "0",
361: leftmargin => "0",
362: marginheight => "0",
363: marginwidth => "0",
364: bgcolor => "$pgbg",
365: text => "$font",
366: link => "$link",
367: vlink => "$vlink",
368: alink => "$alink",);
369:
370: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
371: { 'redirect' => [$expire,'/adm/roles'],
372: 'add_entries' => \%add_entries,
373: 'only_body' => 1,}));
374:
375: # ----------------------------------------------------------------------- Texts
376:
377: my %lt=&Apache::lonlocal::texthash(
378: 'un' => 'Username',
379: 'pw' => 'Password',
380: 'dom' => 'Domain',
1.105 bisitz 381: 'load' => 'Server Load',
1.98 raeburn 382: 'userload' => 'User Load',
383: 'about' => 'About LON-CAPA',
384: 'access' => 'Accessibility Options',
1.106.4.5 raeburn 385: 'catalog' => 'Course/Community Catalog',
1.98 raeburn 386: 'log' => 'Log in',
387: 'help' => 'Log-in Help',
388: 'serv' => 'Server',
389: 'servadm' => 'Server Administration',
390: 'helpdesk' => 'Contact Helpdesk',
1.99 bisitz 391: 'forgotpw' => 'Forgot password?',
1.101 raeburn 392: 'newuser' => 'New User?',
1.99 bisitz 393: 'options_headline' => 'Select Accessibility Options',
394: 'sprs_img' => 'Suppress rendering of images',
395: 'sprs_applet' => 'Suppress Java applets',
396: 'sprs_embed' => 'Suppress rendering of embedded multimedia',
397: 'sprs_font' => 'Increase font size',
398: 'sprs_blackwhite' => 'Switch to black and white mode',
399: 'remember' => 'Remember these settings for next login');
1.98 raeburn 400: # -------------------------------------------------- Change password field name
401: my $forgotpw = &forgotpwdisplay(%lt);
402: my $loginhelp = &loginhelpdisplay(%lt);
403:
404: # ---------------------------------------------------- Serve out DES JavaScript
405: {
406: my $jsh=Apache::File->new($include."/londes.js");
407: $r->print(<$jsh>);
408: }
409: # ---------------------------------------------------------- Serve rest of page
410:
1.16 www 411: if ($fullgraph) {
412: $r->print(
1.106.4.1 raeburn 413: '<table width="100%" cellpadding="0" cellspacing="0" border="0">');
1.16 www 414: }
1.6 www 415:
1.16 www 416: $r->print(<<ENDSERVERFORM);
1.14 albertel 417: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33 www 418: <input type="hidden" name="logtoken" value="$logtoken" />
419: <input type="hidden" name="serverid" value="$lonhost" />
1.63 albertel 420: <input type="hidden" name="interface" value="$env{'form.interface'}" />
1.33 www 421: <input type="hidden" name="uname" value="" />
1.65 www 422: <input type="hidden" name="upass0" value="" />
423: <input type="hidden" name="upass1" value="" />
424: <input type="hidden" name="upass2" value="" />
1.33 www 425: <input type="hidden" name="udom" value="" />
426: <input type="hidden" name="imagesuppress" value="" />
1.34 www 427: <input type="hidden" name="appletsuppress" value="" />
1.33 www 428: <input type="hidden" name="embedsuppress" value="" />
429: <input type="hidden" name="fontenhance" value="" />
430: <input type="hidden" name="blackwhite" value="" />
1.35 www 431: <input type="hidden" name="remember" value="" />
1.63 albertel 432: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
433: <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14 albertel 434: </form>
1.16 www 435: ENDSERVERFORM
1.90 raeburn 436: my $coursecatalog;
1.92 raeburn 437: if (($showcoursecat eq '') || ($showcoursecat)) {
1.90 raeburn 438: $coursecatalog = &coursecatalog_link($lt{'catalog'});
439: }
1.101 raeburn 440: my $newuserlink;
441: if ($shownewuserlink) {
442: $newuserlink = &newuser_link($lt{'newuser'});
443: }
1.106.4.1 raeburn 444: if ($fullgraph) {
445: $r->print(<<HEADER);
1.14 albertel 446: <!-- The LON-CAPA Header -->
447: <tr>
448:
449: <!-- Row 1 Columns 2-4 -->
1.106.4.1 raeburn 450: <td width="100%" height=75 colspan=4 align="left" valign="top" bgcolor="$pgbg">
451: HEADER
452: if ($showbanner) {
453: $r->print(<<ENDBANNER);
454: <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
455: ENDBANNER
456: }
457: $r->print(<<ENDSTART);
458: </td>
1.14 albertel 459: </tr>
460:
461: <!-- The gray bar that starts the two table frames -->
462: <tr>
463:
464: <!-- Row 2 Column 1 -->
1.21 www 465: <td width=182 height=27 bgcolor="$sidebg"> </td>
1.14 albertel 466:
467: <!-- Row 2 Column 2 -->
1.19 bowersj2 468: <td width=27 height=27 align="left" background="$iconpath/filltop.gif"><img src="$iconpath/upperleft.gif" border=0 alt="" /></td>
1.14 albertel 469:
470: <!-- Row 2 Column 3 -->
1.19 bowersj2 471: <td height=27 background="$iconpath/filltop.gif"><img src="$iconpath/filltop.gif" alt="" /></td>
1.14 albertel 472:
473: <!-- Row 2 Column 4 -->
1.19 bowersj2 474: <td width=27 height=27 align="right" background="$iconpath/filltop.gif"><img src="$iconpath/upperright.gif" border=0 alt="" /></td>
1.14 albertel 475: </tr>
476: <tr>
477:
1.84 raeburn 478: <!-- A cell that will hold the 'access', 'about', and 'catalog' links -->
1.14 albertel 479: <!-- Row 3 Column 1 -->
1.86 raeburn 480: <td valign="top" height="60" align="left" bgcolor="$sidebg">
1.84 raeburn 481: <table cellpadding="0" cellspacing="2" border="0">
482: <tr>
483: <td> </td>
484: <td><a href="/adm/login?interface=textual"><b>$lt{'access'}</b></a></td>
1.86 raeburn 485: </tr>
486: <tr>
487: <td> </td>
488: <td><a href="/adm/about.html"><b>$lt{'about'}</b></a></td>
1.90 raeburn 489: </tr>$coursecatalog
1.86 raeburn 490: <tr>
1.84 raeburn 491: <td colspan="2"> </td>
1.86 raeburn 492: </tr>
493: </table>
494: </td>
1.14 albertel 495: <!-- The shaded space between the two main columns -->
496: <!-- Row 3 Column 2 -->
1.19 bowersj2 497: <td width=27 height=60 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14 albertel 498:
499: <!-- The right main column holding the large LON-CAPA logo-->
500: <!-- Rows 3-4 Column 3 -->
1.45 www 501: <td align="center" valign="top" width="100%" height="100%" bgcolor="$mainbg">
1.106.4.1 raeburn 502: ENDSTART
503: if ($showmainlogo) {
504: $r->print(<<ENDLOGO);
1.14 albertel 505: <center>
1.21 www 506: <img src="$logo" alt="" />
1.14 albertel 507: </center>
1.106.4.1 raeburn 508: ENDLOGO
509: }
510: $r->print(<<ENDTOP);
1.14 albertel 511: </td>
512:
513: <!-- Row 3 Column 4 -->
1.19 bowersj2 514: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14 albertel 515: </tr>
516: <tr>
517:
518: <!-- The entry form -->
519: <!-- Row 4 Column 1 -->
1.21 www 520: <td align="center" valign="middle" bgcolor="$sidebg">
1.16 www 521: ENDTOP
1.106.4.1 raeburn 522: } else {
523: $r->print('<h1>The Learning<i>Online</i> Network with CAPA</h1>'
524: .'<h2>'.&mt('Text-based Interface Login').'</h2>'
525: .$announcements);
526: }
1.106.4.2 raeburn 527: $r->print('<form name="client" action="" onsubmit="return(send())">');
1.33 www 528: unless ($fullgraph) {
529: $r->print(<<ENDACCESSOPTIONS);
1.99 bisitz 530: <h3>$lt{'options_headline'}</h3>
531: <label><input type="checkbox" name="imagesuppress" /> $lt{'sprs_img'}</label><br />
532: <label><input type="checkbox" name="appletsuppress" /> $lt{'sprs_applet'}</label><br />
533: <label><input type="checkbox" name="embedsuppress" /> $lt{'sprs_embed'}</label><br />
534: <label><input type="checkbox" name="fontenhance" /> $lt{'sprs_font'}</label><br />
535: <label><input type="checkbox" name="blackwhite" /> $lt{'sprs_blackwhite'}</label><br />
536: <br />
537: <input type="checkbox" name="remember" /> $lt{'remember'}<hr />
1.33 www 538: ENDACCESSOPTIONS
1.106.4.1 raeburn 539: } else {
540: $r->print(<<ENDNOOPT);
1.33 www 541: <input type="hidden" name="imagesuppress" value="" />
542: <input type="hidden" name="embedsuppress" value="" />
1.34 www 543: <input type="hidden" name="appletsuppress" value="" />
1.33 www 544: <input type="hidden" name="fontenhance" value="" />
545: <input type="hidden" name="blackwhite" value="" />
1.35 www 546: <input type="hidden" name="remember" value="" />
1.33 www 547: ENDNOOPT
1.106.4.1 raeburn 548: }
1.98 raeburn 549: my $logintitle;
550: if ($loginheader eq 'text') {
551: $logintitle = '<td bgcolor="'.$bgcol.'" colspan="2"> <b><font size="+1" color="'.$textcol.'">'.$lt{'log'}.'</font></b></td>';
552: } else {
553: $logintitle = '<td bgcolor="'.$sidebg.'" colspan="2"><img src="'.$login.'" alt="'.
554: &mt('User Authentication').'" /></td>';
555: }
1.104 bisitz 556: my $noscript_warning='<td colspan="2" bgcolor="'.$mainbg.'">'
557: .'<noscript><div class="LC_warning"><font size="-1">'
558: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
559: .'</font></div></noscript></td>';
1.16 www 560: $r->print(<<ENDLOGIN);
1.106.4.1 raeburn 561: <input type="hidden" name="lextkey" value="$lextkey" />
562: <input type="hidden" name="uextkey" value="$uextkey" />
1.14 albertel 563:
564: <!-- Start the sub-table for text and input alignment -->
1.106.4.1 raeburn 565: <table border="0" cellspacing="0" cellpadding="0">
1.98 raeburn 566: <tr>$logintitle</tr>
1.104 bisitz 567: <tr>$noscript_warning</tr>
1.14 albertel 568: <tr>
1.93 www 569: <td bgcolor="$mainbg"><br /><font size=-1><b> <label for="uname">$lt{'un'}</label>:</b></font></td>
1.30 www 570: <td bgcolor="$mainbg"><br /><input type="text" name="uname" size="10" value="$authusername" /></td>
1.14 albertel 571: </tr>
572: <tr>
1.93 www 573: <td bgcolor="$mainbg"><font size=-1><b> <label for="upass$now">$lt{'pw'}</label>:</b></font></td>
1.66 www 574: <td bgcolor="$mainbg"><input type="password" name="upass$now" size="10" /></td>
1.14 albertel 575: </tr>
576: <tr>
1.93 www 577: <td bgcolor="$mainbg"><font size=-1><b> <label for="udom">$lt{'dom'}</label>:</b></font></td>
1.30 www 578: <td bgcolor="$mainbg"><input type="text" name="udom" size="10" value="$authdomain" /></td>
1.14 albertel 579: </tr>
580: <tr>
1.84 raeburn 581: <td bgcolor="$mainbg"> </td>
1.28 www 582: <td bgcolor="$mainbg" valign="bottom" align="center">
1.14 albertel 583: <br />
1.51 www 584: <input type="submit" value="$lt{'log'}" />
1.14 albertel 585: </td>
586: </tr>
1.83 raeburn 587: <tr>
588: <td bgcolor="$mainbg" valign="bottom" align="left" colspan="2">
1.84 raeburn 589: $loginhelp
1.83 raeburn 590: $forgotpw
1.101 raeburn 591: $newuserlink
592: <br />
1.83 raeburn 593: </td>
594: </tr>
1.14 albertel 595: </table>
596: <!-- End sub-table -->
597: </form>
1.16 www 598: ENDLOGIN
599: if ($fullgraph) {
1.62 raeburn 600: my $helpdeskscript;
1.90 raeburn 601: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
602: $version,$authdomain,\$helpdeskscript);
1.16 www 603: $r->print(<<ENDDOCUMENT);
1.14 albertel 604: </td>
605:
606: <!-- Row 4 Column 2 -->
1.19 bowersj2 607: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.45 www 608:
609: <!-- Row 4 Column 3 -->
610: <td bgcolor="$mainbg">$announcements</td>
1.14 albertel 611:
612: <!-- Row 4 Column 4 -->
1.19 bowersj2 613: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14 albertel 614: </tr>
615: <tr>
616:
617: <!-- Row 5 Column 1 -->
1.21 www 618: <td bgcolor="$sidebg" valign="middle" align="left">
1.14 albertel 619: <br />
1.106.4.1 raeburn 620: <table border="0" cellspacing="0" cellpadding="0">
1.14 albertel 621: <tr>
1.21 www 622: <td bgcolor="$sidebg" align="left" valign="top">
1.51 www 623: <small><b> $lt{'dom'}: </b></small>
1.14 albertel 624: </td>
1.106.4.1 raeburn 625: <td bgcolor="$sidebg" align="left" valign="middle">
1.14 albertel 626: <small><tt> $domain</tt></small>
627: </td>
628: </tr>
629: <tr>
1.21 www 630: <td bgcolor="$sidebg" align="left" valign="top">
1.51 www 631: <small><b> $lt{'serv'}: </b></small>
1.14 albertel 632: </td>
1.106.4.1 raeburn 633: <td bgcolor="$sidebg" align="left" valign="middle">
1.14 albertel 634: <small><tt> $lonhost ($role)</tt></small>
635: </td>
636: </tr>
637: <tr>
1.106.4.1 raeburn 638: <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">
639: <small><b> $lt{'load'}: </b></small></span>
1.14 albertel 640: </td>
1.106.4.1 raeburn 641: <td bgcolor="$sidebg" align="left" valign="middle">
642: <small><tt> $loadpercent%</tt></small>
1.42 albertel 643: </td>
644: </tr>
645: <tr>
1.106.4.1 raeburn 646: <td bgcolor="$sidebg" align="left" valign="top"><span class="LC_nobreak">
647: <small><b> $lt{'userload'}: </b></small></span>
1.42 albertel 648: </td>
1.106.4.1 raeburn 649: <td bgcolor="$sidebg" align="left" valign="middle">
650: <small><tt> $userloadpercent%</tt></small>
1.14 albertel 651: </td>
652: </tr>
653: </table>
654: <br />
1.60 raeburn 655: $contactblock
1.14 albertel 656: </td>
657:
658: <!-- Row 5 Column 2 -->
1.19 bowersj2 659: <td width=27 background="$iconpath/fillleft.gif"><img src="$iconpath/fillleft.gif" alt="" /></td>
1.14 albertel 660:
661: <!-- Row 5 Column 3 -->
1.21 www 662: <td width="100%" valign="bottom" bgcolor="$mainbg">
1.20 www 663: $domainlogo
664: </td>
1.14 albertel 665:
666: <!-- Row 5 Column 4 -->
1.19 bowersj2 667: <td width=27 background="$iconpath/fillright.gif"><img src="$iconpath/fillright.gif" alt="" /></td>
1.14 albertel 668: </tr>
669: <tr>
670:
671: <!-- Row 6 Column 1 -->
1.21 www 672: <td bgcolor="$sidebg"> </td>
1.14 albertel 673:
674: <!-- Row 6 Column 2 -->
1.19 bowersj2 675: <td align="left" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerleft.gif" alt="" /></td>
1.14 albertel 676:
677: <!-- Row 6 Column 3 -->
1.19 bowersj2 678: <td background="$iconpath/fillbottom.gif"><img src="$iconpath/fillbottom.gif" alt="" /></td>
1.14 albertel 679:
680: <!-- Row 6 Column 4 -->
1.19 bowersj2 681: <td align="right" background="$iconpath/fillbottom.gif"><img src="$iconpath/lowerright.gif" alt="" /></td>
1.14 albertel 682: </tr>
1.1 albertel 683: </table>
1.25 bowersj2 684:
1.59 albertel 685: <script type="text/javascript">
1.106.4.2 raeburn 686: // <![CDATA[
1.59 albertel 687: // the if prevents the script error if the browser can not handle this
1.25 bowersj2 688: if ( document.client.uname ) { document.client.uname.focus(); }
1.106.4.2 raeburn 689: // ]]>
1.25 bowersj2 690: </script>
1.62 raeburn 691: $helpdeskscript
1.14 albertel 692:
1.1 albertel 693: ENDDOCUMENT
1.16 www 694: }
1.98 raeburn 695: my %endargs = ( 'noredirectlink' => 1, );
696: $r->print(&Apache::loncommon::end_page(\%endargs));
1.1 albertel 697: return OK;
1.60 raeburn 698: }
699:
1.106.4.7 raeburn 700: sub check_loginvia {
701: my ($domain,$lonhost) = @_;
702: if ($domain eq '' || $lonhost eq '') {
703: return;
704: }
705: my %domconfhash = &Apache::loncommon::get_domainconf($domain);
706: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
707: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
708: my $output;
709: if ($loginvia ne '') {
710: my $noredirect;
711: my $ip = $ENV{'REMOTE_ADDR'};
712: if ($ip eq '127.0.0.1') {
713: $noredirect = 1;
714: } else {
715: if ($loginvia_exempt ne '') {
716: my @exempt = split(',',$loginvia_exempt);
717: if (grep(/^\Q$ip\E$/,@exempt)) {
718: $noredirect = 1;
719: }
720: }
721: }
722: unless ($noredirect) {
723: my ($newhost,$path);
724: if ($loginvia =~ /:/) {
725: ($newhost,$path) = split(':',$loginvia);
726: } else {
727: $newhost = $loginvia;
728: }
729: if ($newhost ne $lonhost) {
730: if (&Apache::lonnet::hostname($newhost) ne '') {
731: $output = &redirect_page($newhost,$path);
732: }
733: }
734: }
735: }
736: return $output;
737: }
738:
739: sub redirect_page {
740: my ($desthost,$path) = @_;
741: my $protocol = $Apache::lonnet::protocol{$desthost};
742: $protocol = 'http' if ($protocol ne 'https');
743: unless ($path =~ m{^/}) {
744: $path = '/'.$path;
745: }
746: my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
747: if ($env{'form.firsturl'} ne '') {
748: $url .='?firsturl='.$env{'form.firsturl'};
749: }
1.106.4.8! raeburn 750: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
1.106.4.7 raeburn 751: {'redirect' => [0,$url],});
752: my $end_page = &Apache::loncommon::end_page();
753: return $start_page.$end_page;
754: }
755:
1.60 raeburn 756: sub contactdisplay {
1.90 raeburn 757: my ($lt,$servadm,$showadminmail,$version,$authdomain,$helpdeskscript) = @_;
1.60 raeburn 758: my $contactblock;
1.62 raeburn 759: my $showhelpdesk = 0;
760: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
761: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
762: $showhelpdesk = 1;
763: }
1.90 raeburn 764: if ($servadm && $showadminmail) {
765: $contactblock .= '<b> '.$$lt{'servadm'}.':</b><br />'.
766: '<tt> '.$servadm.'</tt><br /> <br />';
767: }
1.60 raeburn 768: if ($showhelpdesk) {
1.84 raeburn 769: $contactblock .= '<b> <a href="javascript:helpdesk()"><font size="+1">'.$lt->{'helpdesk'}.'</font></a></b><br />';
1.75 www 770: my $thisurl = &escape('/adm/login');
1.62 raeburn 771: $$helpdeskscript = <<"ENDSCRIPT";
772: <script type="text/javascript">
1.106.4.2 raeburn 773: // <![CDATA[
1.62 raeburn 774: function helpdesk() {
775: var codedom = document.client.udom.value;
776: if (codedom == '') {
777: codedom = "$authdomain";
778: }
779: var querystr = "origurl=$thisurl&codedom="+codedom;
780: document.location.href = "/adm/helpdesk?"+querystr;
781: return;
782: }
1.106.4.2 raeburn 783: // ]]>
1.62 raeburn 784: </script>
785: ENDSCRIPT
1.60 raeburn 786: }
787: $contactblock .= <<"ENDBLOCK";
788: $version
789: ENDBLOCK
790: return $contactblock;
791: }
1.83 raeburn 792:
793: sub forgotpwdisplay {
1.84 raeburn 794: my (%lt) = @_;
1.83 raeburn 795: my $prompt_for_resetpw = 1;
796: if ($prompt_for_resetpw) {
1.101 raeburn 797: return '<br /> <a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a></b><br />';
1.84 raeburn 798: }
799: return;
800: }
801:
802: sub loginhelpdisplay {
803: my (%lt) = @_;
804: my $login_help = 1;
805: if ($login_help) {
806: return ' <a href="/adm/loginproblems.html">'.$lt{'help'}.'</a></b>';
1.83 raeburn 807: }
808: return;
809: }
1.1 albertel 810:
1.90 raeburn 811: sub coursecatalog_link {
812: my ($linkname) = @_;
813: return <<"END";
814: <tr>
815: <td> </td>
1.106.4.6 raeburn 816: <td><span class="LC_nobreak"><a href="/adm/coursecatalog"><b>$linkname</b></a></span></td>
1.90 raeburn 817: </tr>
818: END
819: }
820:
1.101 raeburn 821: sub newuser_link {
822: my ($linkname) = @_;
823: return ' <a href="/adm/createaccount"><b>'.$linkname.'</b></a><br />';
824: }
825:
1.1 albertel 826: 1;
827: __END__
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