Annotation of loncom/auth/lonlogin.pm, revision 1.137
1.1 albertel 1: # The LearningOnline Network
2: # Login Screen
1.11 www 3: #
1.137 ! bisitz 4: # $Id: lonlogin.pm,v 1.136 2010/03/31 23:11:48 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:
1.71 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);
1.135 raeburn 75: if ($handle ne '') {
76: my $lonidsdir=$r->dir_config('lonIDsDir');
77: if ($handle=~/^publicuser\_/) {
1.70 www 78: # For "public user" - remove it, we apparently really want to login
1.135 raeburn 79: unlink($r->dir_config('lonIDsDir')."/$handle.id");
80: } else {
1.55 www 81: # Indeed, a valid token is found
1.135 raeburn 82: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
83: my $start_page =
84: &Apache::loncommon::start_page('Already logged in');
85: my $end_page =
86: &Apache::loncommon::end_page();
87: my $dest = '/adm/roles';
88: if ($env{'form.firsturl'} ne '') {
89: $dest = $env{'form.firsturl'};
90: }
91: $r->print(
1.100 bisitz 92: $start_page
1.103 bisitz 93: .'<h1>'.&mt('You are already logged in!').'</h1>'
1.117 hauer 94: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
1.125 raeburn 95: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
1.135 raeburn 96: .$end_page
1.100 bisitz 97: );
1.135 raeburn 98: return OK;
99: }
1.55 www 100: }
101:
102: # ---------------------------------------------------- No valid token, continue
1.16 www 103:
1.70 www 104: # ---------------------------- Not possible to really login to domain "public"
105: if ($env{'form.domain'} eq 'public') {
106: $env{'form.domain'}='';
107: $env{'form.username'}='';
108: }
1.32 www 109: # ----------------------------------------------------------- Process Interface
1.63 albertel 110: $env{'form.interface'}=~s/\W//g;
1.16 www 111:
1.32 www 112: my $httpbrowser=$ENV{"HTTP_USER_AGENT"};
1.94 albertel 113:
114: my $iconpath=
115: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
116:
1.126 raeburn 117: my $lonhost = $r->dir_config('lonHostID');
1.87 raeburn 118: my $domain = &Apache::lonnet::default_login_domain();
1.126 raeburn 119: if ($lonhost ne '') {
1.133 raeburn 120: my $redirect = &check_loginvia($domain,$lonhost);
121: if ($redirect) {
122: $r->print($redirect);
123: return OK;
124: }
1.126 raeburn 125: }
126:
1.63 albertel 127: if (($env{'form.domain'}) &&
1.89 albertel 128: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
1.63 albertel 129: $domain=$env{'form.domain'};
1.46 www 130: }
1.1 albertel 131: my $role = $r->dir_config('lonRole');
132: my $loadlim = $r->dir_config('lonLoadLim');
1.90 raeburn 133: my $servadm = $r->dir_config('lonAdmEMail');
1.1 albertel 134: my $tabdir = $r->dir_config('lonTabDir');
1.6 www 135: my $include = $r->dir_config('lonIncludes');
1.37 www 136: my $expire = $r->dir_config('lonExpire');
1.44 www 137: my $version = $r->dir_config('lonVersion');
1.88 albertel 138: my $host_name = &Apache::lonnet::hostname($lonhost);
1.1 albertel 139:
1.30 www 140: # --------------------------------------------- Default values for login fields
141:
1.63 albertel 142: my $authusername=($env{'form.username'}?$env{'form.username'}:'');
143: my $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
1.30 www 144:
145: # ---------------------------------------------------------- Determine own load
1.1 albertel 146: my $loadavg;
1.41 albertel 147: {
148: my $loadfile=Apache::File->new('/proc/loadavg');
149: $loadavg=<$loadfile>;
150: }
1.1 albertel 151: $loadavg =~ s/\s.*//g;
1.57 matthew 152: my $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
1.41 albertel 153: my $userloadpercent=&Apache::lonnet::userload();
1.1 albertel 154:
1.30 www 155: # ------------------------------------------------------- Do the load balancing
1.80 albertel 156: my $otherserver= &Apache::lonnet::absolute_url($host_name);
1.31 www 157: my $firsturl=
1.63 albertel 158: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
1.97 albertel 159: # ---------------------------------------------------------- Are we overloaded?
160: if ((($userloadpercent>100.0)||($loadpercent>100.0))) {
1.47 albertel 161: my $unloaded=Apache::lonnet::spareserver($loadpercent,$userloadpercent);
162: if ($unloaded) { $otherserver=$unloaded; }
1.1 albertel 163: }
1.6 www 164:
1.45 www 165: # ----------------------------------------------------------- Get announcements
166: my $announcements=&Apache::lonnet::getannounce();
1.6 www 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);
1.15 www 182: if ($lextkey>2147483647) { $lextkey-=4294967296; }
183:
1.6 www 184: my $uextkey=hex($ukey);
1.15 www 185: if ($uextkey>2147483647) { $uextkey-=4294967296; }
186:
1.31 www 187: # -------------------------------------------------------- Store away log token
1.123 raeburn 188: my $tokenextras;
189: if ($env{'form.role'}) {
190: $tokenextras = '&role='.&escape($env{'form.role'});
191: }
192: if ($env{'form.symb'}) {
1.124 raeburn 193: if (!$tokenextras) {
194: $tokenextras = '&';
195: }
1.123 raeburn 196: $tokenextras .= '&symb='.&escape($env{'form.symb'});
197: }
1.6 www 198: my $logtoken=Apache::lonnet::reply(
1.123 raeburn 199: 'tmpput:'.$ukey.$lkey.'&'.$firsturl.$tokenextras,
1.6 www 200: $lonhost);
1.31 www 201:
202: # ------------------- If we cannot talk to ourselves, we are in serious trouble
203:
204: if ($logtoken eq 'con_lost') {
205: my $spares='';
1.64 albertel 206: my $last;
207: foreach my $hostid (sort
208: {
1.88 albertel 209: &Apache::lonnet::hostname($a) cmp
210: &Apache::lonnet::hostname($b);
1.64 albertel 211: }
212: keys(%Apache::lonnet::spareid)) {
1.58 matthew 213: next if ($hostid eq $lonhost);
1.88 albertel 214: my $hostname = &Apache::lonnet::hostname($hostid);
215: next if ($last eq $hostname);
1.58 matthew 216: $spares.='<br /><font size="+1"><a href="http://'.
1.88 albertel 217: $hostname.
1.58 matthew 218: '/adm/login?domain='.$authdomain.'">'.
1.88 albertel 219: $hostname.'</a>'.
1.106 bisitz 220: ' '.&mt('(preferred)').'</font>'.$/;
1.88 albertel 221: $last=$hostname;
1.58 matthew 222: }
1.107 tempelho 223: $spares.= '<br />';
224: my %all_hostnames = &Apache::lonnet::all_hostnames();
225: foreach my $hostid (sort
226: {
227: &Apache::lonnet::hostname($a) cmp
228: &Apache::lonnet::hostname($b);
229: }
230: keys(%all_hostnames)) {
231: next if ($hostid eq $lonhost || $Apache::lonnet::spareid{$hostid});
232: my $hostname = &Apache::lonnet::hostname($hostid);
233: next if ($last eq $hostname);
234: $spares.='<br /><a href="http://'.
235: $hostname.
236: '/adm/login?domain='.$authdomain.'">'.
237: $hostname.'</a>';
238: $last=$hostname;
239: }
240: $r->print(
241: '<html>'
242: .'<head><title>'
243: .&mt('The LearningOnline Network with CAPA')
244: .'</title></head>'
245: .'<body bgcolor="#FFFFFF">'
246: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
247: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" align="right" />'
248: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>'
249: .'<p>'.&mt('Please attempt to login to one of the following servers:').'</p>'
250: .$spares
251: .'</body>'
252: .'</html>'
253: );
254: return OK;
255: }
1.31 www 256:
257: # ----------------------------------------------- Apparently we are in business
1.107 tempelho 258: $servadm=~s/\,/\<br \/\>/g;
1.38 www 259:
1.21 www 260: # ----------------------------------------------------------- Front page design
1.119 tempelho 261: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
262: my $font=&Apache::loncommon::designparm('login.font',$domain);
263: my $link=&Apache::loncommon::designparm('login.link',$domain);
264: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
1.107 tempelho 265: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
1.119 tempelho 266: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
1.137 ! bisitz 267: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
! 268: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
! 269: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
1.107 tempelho 270: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
271: my $img=&Apache::loncommon::designparm('login.img',$domain);
1.132 bisitz 272: my $domainlogo='<div>'.&Apache::loncommon::domainlogo($domain).'</div>';
1.107 tempelho 273: my $login=&Apache::loncommon::designparm('login.login',$domain);
274: if ($login eq '') {
275: $login = $iconpath.'/'.&mt('userauthentication.gif');
276: }
1.109 raeburn 277: my $showbanner = 1;
278: my $showmainlogo = 1;
279: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
280: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
281: }
282: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
283: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
284: }
1.107 tempelho 285: my $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
286: my $showcoursecat =
287: &Apache::loncommon::designparm('login.coursecatalog',$domain);
288: my $loginheader =&Apache::loncommon::designparm('login.loginheader',$domain);
289: my $shownewuserlink =
290: &Apache::loncommon::designparm('login.newuser',$domain);
291: my $now=time;
292: my $js = (<<ENDSCRIPT);
293:
1.116 bisitz 294: <script type="text/javascript" language="JavaScript">
1.122 bisitz 295: // <![CDATA[
1.107 tempelho 296: function send()
297: {
298: this.document.server.elements.uname.value
299: =this.document.client.elements.uname.value;
300:
301: this.document.server.elements.udom.value
302: =this.document.client.elements.udom.value;
303:
304: uextkey=this.document.client.elements.uextkey.value;
305: lextkey=this.document.client.elements.lextkey.value;
306: initkeys();
307:
308: this.document.server.elements.upass0.value
309: =crypted(this.document.client.elements.upass$now.value.substr(0,15));
310: this.document.server.elements.upass1.value
311: =crypted(this.document.client.elements.upass$now.value.substr(15,15));
312: this.document.server.elements.upass2.value
313: =crypted(this.document.client.elements.upass$now.value.substr(30,15));
1.6 www 314:
1.107 tempelho 315: this.document.client.elements.uname.value='';
316: this.document.client.elements.upass$now.value='';
1.6 www 317:
1.107 tempelho 318: this.document.server.submit();
319: return false;
320: }
1.122 bisitz 321: // ]]>
1.107 tempelho 322: </script>
1.98 raeburn 323:
1.16 www 324: ENDSCRIPT
1.6 www 325:
1.98 raeburn 326: # --------------------------------------------------- Print login screen header
327:
1.118 tempelho 328: my %add_entries = (
1.108 tempelho 329: bgcolor => "$mainbg",
1.107 tempelho 330: text => "$font",
331: link => "$link",
332: vlink => "$vlink",
333: alink => "$alink",);
334:
335: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
336: { 'redirect' => [$expire,'/adm/roles'],
337: 'add_entries' => \%add_entries,
338: 'only_body' => 1,}));
1.98 raeburn 339:
340: # ----------------------------------------------------------------------- Texts
341:
342: my %lt=&Apache::lonlocal::texthash(
1.129 bisitz 343: 'un' => 'Username',
344: 'pw' => 'Password',
345: 'dom' => 'Domain',
346: 'perc' => 'percent',
347: 'load' => 'Server Load',
348: 'userload' => 'User Load',
349: 'catalog' => 'Course/Community Catalog',
350: 'log' => 'Log in',
351: 'help' => 'Log-in Help',
352: 'serv' => 'Server',
353: 'servadm' => 'Server Administration',
354: 'helpdesk' => 'Contact Helpdesk',
355: 'forgotpw' => 'Forgot password?',
356: 'newuser' => 'New User?',
357: );
1.98 raeburn 358: # -------------------------------------------------- Change password field name
1.131 jms 359:
1.107 tempelho 360: my $forgotpw = &forgotpwdisplay(%lt);
1.132 bisitz 361: $forgotpw .= '<br />' if $forgotpw;
1.135 raeburn 362: my $loginhelp = &loginhelpdisplay($authdomain,%lt);
1.132 bisitz 363: $loginhelp .= '<br />' if $loginhelp;
1.98 raeburn 364:
365: # ---------------------------------------------------- Serve out DES JavaScript
1.107 tempelho 366: {
367: my $jsh=Apache::File->new($include."/londes.js");
368: $r->print(<$jsh>);
369: }
1.98 raeburn 370: # ---------------------------------------------------------- Serve rest of page
371:
1.107 tempelho 372: $r->print(
1.137 ! bisitz 373: '<div class="LC_Box"'
! 374: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
! 375: );
1.6 www 376:
1.120 foxr 377: #
378: # If the loadbalancing yielded just http:// because perhaps there's no loadbalancing?
379: # then just us a relative link to authenticate:
380: #
381:
1.107 tempelho 382: $r->print(<<ENDSERVERFORM);
383: <form name="server" action="$otherserver/adm/authenticate" method="post" target="_top">
1.33 www 384: <input type="hidden" name="logtoken" value="$logtoken" />
385: <input type="hidden" name="serverid" value="$lonhost" />
386: <input type="hidden" name="uname" value="" />
1.65 www 387: <input type="hidden" name="upass0" value="" />
388: <input type="hidden" name="upass1" value="" />
389: <input type="hidden" name="upass2" value="" />
1.33 www 390: <input type="hidden" name="udom" value="" />
1.63 albertel 391: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
392: <input type="hidden" name="localres" value="$env{'form.localres'}" />
1.14 albertel 393: </form>
1.16 www 394: ENDSERVERFORM
1.108 tempelho 395: my $coursecatalog;
396: if (($showcoursecat eq '') || ($showcoursecat)) {
1.132 bisitz 397: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
1.108 tempelho 398: }
399: my $newuserlink;
400: if ($shownewuserlink) {
1.132 bisitz 401: $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
1.108 tempelho 402: }
1.137 ! bisitz 403: my $logintitle =
! 404: '<h2 class="LC_hcell"'
! 405: .' style="background:'.$loginbox_header_bgcol.';'
! 406: .' color:'.$loginbox_header_textcol.'">';
1.108 tempelho 407: if ($loginheader eq 'text') {
1.137 ! bisitz 408: $logintitle .= $lt{'log'};
1.108 tempelho 409: } else {
1.137 ! bisitz 410: $logintitle .= '<img src="'.$login.'"'.
! 411: ' alt="'.&mt('User Authentication').'" />';
1.108 tempelho 412: }
1.137 ! bisitz 413: $logintitle .= '</h2>';
1.108 tempelho 414:
415: my $noscript_warning='<noscript><span class="LC_warning"><b>'
416: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
417: .'</b></span></noscript>';
418: my $helpdeskscript;
419: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
1.132 bisitz 420: $authdomain,\$helpdeskscript);
1.107 tempelho 421:
1.108 tempelho 422: my $loginform=(<<LFORM);
1.122 bisitz 423: <form name="client" action="" onsubmit="return(send())">
1.115 bisitz 424: <input type="hidden" name="lextkey" value="$lextkey" />
425: <input type="hidden" name="uextkey" value="$uextkey" />
1.108 tempelho 426: <b><label for="uname">$lt{'un'}</label>:</b><br />
1.130 bisitz 427: <input type="text" name="uname" id="uname" size="15" value="$authusername" /><br />
1.108 tempelho 428: <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
1.130 bisitz 429: <input type="password" name="upass$now" id="upass$now" size="15" /><br />
1.108 tempelho 430: <b><label for="udom">$lt{'dom'}</label>:</b><br />
1.130 bisitz 431: <input type="text" name="udom" id="udom" size="15" value="$authdomain" /><br />
1.108 tempelho 432: <input type="submit" value="$lt{'log'}" />
433: </form>
434: LFORM
435:
1.109 raeburn 436: if ($showbanner) {
437: $r->print(<<HEADER);
438: <!-- The LON-CAPA Header -->
1.132 bisitz 439: <div style="background:$pgbg;margin:0;width:100%;">
440: <img src="$img" border="0" alt="The Learning Online Network with CAPA" />
441: </div>
1.109 raeburn 442: HEADER
443: }
444: $r->print(<<ENDTOP);
1.137 ! bisitz 445: <div style="float:left;">
! 446: <div class="LC_Box" style="background:$loginbox_bg;">
1.112 muellerd 447: $logintitle
1.137 ! bisitz 448: $loginform
! 449: $noscript_warning
1.108 tempelho 450: </div>
1.107 tempelho 451:
1.137 ! bisitz 452: <div class="LC_Box" style="padding-top: 10px;">
1.132 bisitz 453: $loginhelp
454: $forgotpw
455: $contactblock
456: $newuserlink
1.130 bisitz 457: $coursecatalog
1.107 tempelho 458: </div>
1.118 tempelho 459: </div>
1.137 ! bisitz 460:
! 461: <div>
1.118 tempelho 462: ENDTOP
463: if ($showmainlogo) {
464: $r->print(' <img src="'.$logo.'" alt="" />'."\n");
465: }
466: $r->print(<<ENDTOP);
467: $announcements
468: $domainlogo
1.137 ! bisitz 469: </div>
! 470: <hr style="clear:both;" />
1.108 tempelho 471: ENDTOP
472:
473: $r->print(<<ENDDOCUMENT);
1.115 bisitz 474: <table border="0" cellspacing="0" cellpadding="0">
1.14 albertel 475: <tr>
1.110 muellerd 476: <td align="left" valign="top">
1.132 bisitz 477: <small><b>$lt{'dom'}: </b></small>
1.14 albertel 478: </td>
1.110 muellerd 479: <td align="left" valign="top">
1.14 albertel 480: <small><tt> $domain</tt></small>
481: </td>
482: </tr>
483: <tr>
1.110 muellerd 484: <td align="left" valign="top">
1.132 bisitz 485: <small><b>$lt{'serv'}: </b></small>
1.14 albertel 486: </td>
1.110 muellerd 487: <td align="left" valign="top">
1.14 albertel 488: <small><tt> $lonhost ($role)</tt></small>
489: </td>
490: </tr>
491: <tr>
1.110 muellerd 492: <td align="left" valign="top">
1.132 bisitz 493: <small><b>$lt{'load'}: </b></small>
1.14 albertel 494: </td>
1.110 muellerd 495: <td align="left" valign="top">
1.51 www 496: <small><tt> $loadpercent $lt{'perc'}</tt></small>
1.42 albertel 497: </td>
498: </tr>
499: <tr>
1.110 muellerd 500: <td align="left" valign="top">
1.132 bisitz 501: <small><b>$lt{'userload'}: </b></small>
1.42 albertel 502: </td>
1.110 muellerd 503: <td align="left" valign="top">
1.51 www 504: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
1.14 albertel 505: </td>
506: </tr>
1.132 bisitz 507: <tr>
508: <td colspan="2" align="left">
509: <small>$version</small>
510: </td>
511: </tr>
1.14 albertel 512: </table>
1.107 tempelho 513: </div>
1.25 bowersj2 514:
1.59 albertel 515: <script type="text/javascript">
1.122 bisitz 516: // <![CDATA[
1.59 albertel 517: // the if prevents the script error if the browser can not handle this
1.25 bowersj2 518: if ( document.client.uname ) { document.client.uname.focus(); }
1.122 bisitz 519: // ]]>
1.25 bowersj2 520: </script>
1.62 raeburn 521: $helpdeskscript
1.14 albertel 522:
1.1 albertel 523: ENDDOCUMENT
1.98 raeburn 524: my %endargs = ( 'noredirectlink' => 1, );
525: $r->print(&Apache::loncommon::end_page(\%endargs));
1.1 albertel 526: return OK;
1.60 raeburn 527: }
528:
1.133 raeburn 529: sub check_loginvia {
530: my ($domain,$lonhost) = @_;
531: if ($domain eq '' || $lonhost eq '') {
532: return;
533: }
534: my %domconfhash = &Apache::loncommon::get_domainconf($domain);
535: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
536: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
537: my $output;
538: if ($loginvia ne '') {
539: my $noredirect;
540: my $ip = $ENV{'REMOTE_ADDR'};
541: if ($ip eq '127.0.0.1') {
542: $noredirect = 1;
543: } else {
544: if ($loginvia_exempt ne '') {
545: my @exempt = split(',',$loginvia_exempt);
546: if (grep(/^\Q$ip\E$/,@exempt)) {
547: $noredirect = 1;
548: }
549: }
550: }
551: unless ($noredirect) {
552: my ($newhost,$path);
553: if ($loginvia =~ /:/) {
554: ($newhost,$path) = split(':',$loginvia);
555: } else {
556: $newhost = $loginvia;
557: }
558: if ($newhost ne $lonhost) {
559: if (&Apache::lonnet::hostname($newhost) ne '') {
560: $output = &redirect_page($newhost,$path);
561: }
562: }
563: }
564: }
565: return $output;
566: }
567:
1.126 raeburn 568: sub redirect_page {
1.133 raeburn 569: my ($desthost,$path) = @_;
1.126 raeburn 570: my $protocol = $Apache::lonnet::protocol{$desthost};
571: $protocol = 'http' if ($protocol ne 'https');
1.133 raeburn 572: unless ($path =~ m{^/}) {
573: $path = '/'.$path;
574: }
575: my $url = $protocol.'://'.&Apache::lonnet::hostname($desthost).$path;
1.126 raeburn 576: if ($env{'form.firsturl'} ne '') {
577: $url .='?firsturl='.$env{'form.firsturl'};
578: }
1.136 raeburn 579: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
1.126 raeburn 580: {'redirect' => [0,$url],});
581: my $end_page = &Apache::loncommon::end_page();
582: return $start_page.$end_page;
583: }
584:
1.60 raeburn 585: sub contactdisplay {
1.132 bisitz 586: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript) = @_;
1.60 raeburn 587: my $contactblock;
1.62 raeburn 588: my $showhelpdesk = 0;
589: my $requestmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
590: if ($requestmail =~ m/^[^\@]+\@[^\@]+$/) {
591: $showhelpdesk = 1;
592: }
1.90 raeburn 593: if ($servadm && $showadminmail) {
1.130 bisitz 594: $contactblock .= $$lt{'servadm'}.':<br />'.
595: '<tt>'.$servadm.'</tt><br />';
1.90 raeburn 596: }
1.60 raeburn 597: if ($showhelpdesk) {
1.114 tempelho 598: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
1.75 www 599: my $thisurl = &escape('/adm/login');
1.62 raeburn 600: $$helpdeskscript = <<"ENDSCRIPT";
601: <script type="text/javascript">
1.122 bisitz 602: // <![CDATA[
1.62 raeburn 603: function helpdesk() {
604: var codedom = document.client.udom.value;
605: if (codedom == '') {
606: codedom = "$authdomain";
607: }
608: var querystr = "origurl=$thisurl&codedom="+codedom;
609: document.location.href = "/adm/helpdesk?"+querystr;
610: return;
611: }
1.122 bisitz 612: // ]]>
1.62 raeburn 613: </script>
614: ENDSCRIPT
1.60 raeburn 615: }
616: return $contactblock;
617: }
1.83 raeburn 618:
619: sub forgotpwdisplay {
1.84 raeburn 620: my (%lt) = @_;
1.83 raeburn 621: my $prompt_for_resetpw = 1;
622: if ($prompt_for_resetpw) {
1.107 tempelho 623: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
1.84 raeburn 624: }
625: return;
626: }
627:
628: sub loginhelpdisplay {
1.135 raeburn 629: my ($authdomain,%lt) = @_;
1.84 raeburn 630: my $login_help = 1;
631: if ($login_help) {
1.135 raeburn 632: my $dom = $authdomain;
633: if ($dom eq '') {
634: $dom = &Apache::lonnet::default_login_domain();
635: }
636: my %helpconfig = &Apache::lonnet::get_dom('configuration',['helpsettings'],$dom);
637: my $loginhelp_url = $helpconfig{'helpsettings'}{'loginhelpurl'};
638: if ($loginhelp_url ne '') {
639: return '<a href="'.$loginhelp_url.'">'.$lt{'help'}.'</a>';
1.131 jms 640: } else {
1.135 raeburn 641: return '<a href="/adm/loginproblems.html">'.$lt{'help'}.'</a>';
642: }
1.83 raeburn 643: }
644: return;
645: }
1.1 albertel 646:
1.90 raeburn 647: sub coursecatalog_link {
648: my ($linkname) = @_;
649: return <<"END";
1.137 ! bisitz 650: <a href="/adm/coursecatalog">$linkname</a>
1.90 raeburn 651: END
652: }
653:
1.101 raeburn 654: sub newuser_link {
655: my ($linkname) = @_;
1.130 bisitz 656: return '<a href="/adm/createaccount">'.$linkname.'</a>';
1.101 raeburn 657: }
658:
1.1 albertel 659: 1;
660: __END__
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