Annotation of loncom/auth/lonlogin.pm, revision 1.197
1.160 kruse 1: # The LearningOnline Network
2: # Login Screen
3: #
1.197 ! raeburn 4: # $Id: lonlogin.pm,v 1.196 2022/05/25 18:05:56 raeburn Exp $
1.160 kruse 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 Apache::File ();
34: use Apache::lonnet;
35: use Apache::loncommon();
36: use Apache::lonauth();
37: use Apache::lonlocal;
38: use Apache::migrateuser();
39: use lib '/home/httpd/lib/perl/';
1.176 raeburn 40: use LONCAPA qw(:DEFAULT :match);
1.188 raeburn 41: use URI::Escape;
42: use HTML::Entities();
1.169 raeburn 43: use CGI::Cookie();
1.160 kruse 44:
45: sub handler {
46: my $r = shift;
47:
48: &Apache::loncommon::get_unprocessed_cgi
49: (join('&',$ENV{'QUERY_STRING'},$env{'request.querystring'},
50: $ENV{'REDIRECT_QUERY_STRING'}),
51: ['interface','username','domain','firsturl','localpath','localres',
1.193 raeburn 52: 'token','role','symb','iptoken','btoken','ltoken','ttoken','linkkey',
53: 'saml','sso','retry']);
54:
55: # -- check if they are a migrating user
56: if (defined($env{'form.token'})) {
57: return &Apache::migrateuser::handler($r);
58: }
59:
1.192 raeburn 60: my $lonhost = $r->dir_config('lonHostID');
1.193 raeburn 61: if ($env{'form.ttoken'}) {
62: my %info = &Apache::lonnet::tmpget($env{'form.ttoken'});
63: &Apache::lonnet::tmpdel($env{'form.ttoken'});
64: if ($info{'origurl'}) {
65: $env{'form.firsturl'} = $info{'origurl'};
66: }
67: if ($info{'ltoken'}) {
68: $env{'form.ltoken'} = $info{'ltoken'};
69: } elsif ($info{'linkprot'}) {
70: $env{'form.linkprot'} = $info{'linkprot'};
71: } elsif ($info{'linkkey'} ne '') {
72: $env{'form.linkkey'} = $info{'linkkey'};
73: }
74: } elsif (($env{'form.sso'}) || ($env{'form.retry'})) {
1.192 raeburn 75: my $infotoken;
76: if ($env{'form.sso'}) {
77: $infotoken = $env{'form.sso'};
78: } else {
79: $infotoken = $env{'form.retry'};
80: }
81: my $data = &Apache::lonnet::reply('tmpget:'.$infotoken,$lonhost);
82: unless (($data=~/^error/) || ($data eq 'con_lost') ||
83: ($data eq 'no_such_host')) {
84: my %info = &decode_token($data);
85: foreach my $item (keys(%info)) {
86: $env{'form.'.$item} = $info{$item};
87: }
88: &Apache::lonnet::tmpdel($infotoken);
89: }
90: } else {
91: if (!defined($env{'form.firsturl'})) {
92: &Apache::lonacc::get_posted_cgi($r,['firsturl']);
93: }
94: if (!defined($env{'form.firsturl'})) {
95: if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) {
96: $env{'form.firsturl'} = $ENV{'REDIRECT_URL'};
97: }
98: }
99: if (($env{'form.firsturl'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) &&
1.193 raeburn 100: (!$env{'form.ltoken'}) && (!$env{'form.linkprot'}) && (!$env{'form.linkkey'})) {
1.192 raeburn 101: &Apache::lonacc::get_posted_cgi($r,['linkkey']);
102: }
103: if ($env{'form.firsturl'} eq '/adm/logout') {
104: delete($env{'form.firsturl'});
1.172 raeburn 105: }
106: }
1.160 kruse 107:
1.169 raeburn 108: # For "public user" - remove any exising "public" cookie, as user really wants to log-in
1.171 raeburn 109: my ($handle,$lonidsdir,$expirepub,$userdom);
1.176 raeburn 110: $lonidsdir=$r->dir_config('lonIDsDir');
1.169 raeburn 111: unless ($r->header_only) {
1.171 raeburn 112: $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom);
1.169 raeburn 113: if ($handle ne '') {
114: if ($handle=~/^publicuser\_/) {
115: unlink($r->dir_config('lonIDsDir')."/$handle.id");
116: undef($handle);
1.171 raeburn 117: undef($userdom);
118: $expirepub = 1;
1.169 raeburn 119: }
120: }
121: }
122:
1.160 kruse 123: &Apache::loncommon::no_cache($r);
124: &Apache::lonlocal::get_language_handle($r);
125: &Apache::loncommon::content_type($r,'text/html');
1.171 raeburn 126: if ($expirepub) {
1.170 raeburn 127: my $c = new CGI::Cookie(-name => 'lonPubID',
1.169 raeburn 128: -value => '',
129: -expires => '-10y',);
130: $r->header_out('Set-cookie' => $c);
1.171 raeburn 131: } elsif (($handle eq '') && ($userdom ne '')) {
1.173 raeburn 132: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
133: foreach my $name (keys(%cookies)) {
134: next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
135: my $c = new CGI::Cookie(-name => $name,
136: -value => '',
137: -expires => '-10y',);
138: $r->headers_out->add('Set-cookie' => $c);
139: }
1.169 raeburn 140: }
1.160 kruse 141: $r->send_http_header;
142: return OK if $r->header_only;
143:
144:
145: # Are we re-routing?
146: my $londocroot = $r->dir_config('lonDocRoot');
147: if (-e "$londocroot/lon-status/reroute.txt") {
148: &Apache::lonauth::reroute($r);
149: return OK;
150: }
151:
1.174 raeburn 152: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
153:
154: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1);
155: if ($found_server) {
156: my $hostname = &Apache::lonnet::hostname($found_server);
157: if ($hostname ne '') {
158: my $protocol = $Apache::lonnet::protocol{$found_server};
159: $protocol = 'http' if ($protocol ne 'https');
160: my $dest = '/adm/roles';
161: if ($env{'form.firsturl'} ne '') {
1.193 raeburn 162: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&');
1.174 raeburn 163: }
1.176 raeburn 164: my %info = (
165: balcookie => $lonhost.':'.$balancer_cookie,
166: );
1.193 raeburn 167: if ($env{'form.role'}) {
168: $info{'role'} = $env{'form.role'};
169: }
170: if ($env{'form.symb'}) {
171: $info{'symb'} = $env{'form.symb'};
1.177 raeburn 172: }
1.176 raeburn 173: my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server);
1.193 raeburn 174: unless (($balancer_token eq 'con_lost') || ($balancer_token eq 'refused') ||
175: ($balancer_token eq 'unknown_cmd') || ($balancer_token eq 'no_such_host')) {
1.187 raeburn 176: $dest .= (($dest=~/\?/)?'&':'?') . 'btoken='.$balancer_token;
1.176 raeburn 177: }
1.193 raeburn 178: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
179: my %link_info;
180: if ($env{'form.ltoken'}) {
181: $link_info{'ltoken'} = $env{'form.ltoken'};
182: } elsif ($env{'form.linkprot'}) {
183: $link_info{'linkprot'} = $env{'form.linkprot'};
184: } elsif ($env{'form.linkkey'} ne '') {
185: $link_info{'linkkey'} = $env{'form.linkkey'};
186: }
187: if (keys(%link_info)) {
188: $link_info{'origurl'} = $env{'form.firsturl'};
189: my $token = &Apache::lonnet::tmpput(\%link_info,$found_server,'link');
190: unless (($token eq 'con_lost') || ($token eq 'refused') ||
191: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
192: $dest .= (($dest=~/\?/)?'&':'?') . 'ttoken='.$token;
193: }
194: }
195: }
1.183 raeburn 196: unless ($found_server eq $lonhost) {
197: my $alias = &Apache::lonnet::use_proxy_alias($r,$found_server);
198: $hostname = $alias if ($alias ne '');
199: }
1.174 raeburn 200: my $url = $protocol.'://'.$hostname.$dest;
201: my $start_page =
202: &Apache::loncommon::start_page('Switching Server ...',undef,
203: {'redirect' => [0,$url],});
204: my $end_page = &Apache::loncommon::end_page();
205: $r->print($start_page.$end_page);
206: return OK;
207: }
208: }
209:
1.171 raeburn 210: #
1.176 raeburn 211: # Check if a LON-CAPA load balancer sent user here because user's browser sent
212: # it a balancer cookie for an active session on this server.
213: #
214:
1.193 raeburn 215: my $balcookie;
1.176 raeburn 216: if ($env{'form.btoken'}) {
217: my %info = &Apache::lonnet::tmpget($env{'form.btoken'});
218: $balcookie = $info{'balcookie'};
219: &Apache::lonnet::tmpdel($env{'form.btoken'});
220: delete($env{'form.btoken'});
221: }
222:
223: #
1.171 raeburn 224: # If browser sent an old cookie for which the session file had been removed
225: # check if configuration for user's domain has a portal URL set. If so
226: # switch user's log-in to the portal.
227: #
228:
229: if (($handle eq '') && ($userdom ne '')) {
230: my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom);
231: if ($domdefaults{'portal_def'} =~ /^https?\:/) {
232: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
233: {'redirect' => [0,$domdefaults{'portal_def'}],});
234: my $end_page = &Apache::loncommon::end_page();
235: $r->print($start_page.$end_page);
236: return OK;
237: }
238: }
239:
1.160 kruse 240: # -------------------------------- Prevent users from attempting to login twice
241: if ($handle ne '') {
1.169 raeburn 242: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
243: my $start_page =
244: &Apache::loncommon::start_page('Already logged in');
245: my $end_page =
246: &Apache::loncommon::end_page();
247: my $dest = '/adm/roles';
248: if ($env{'form.firsturl'} ne '') {
1.193 raeburn 249: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&');
1.169 raeburn 250: }
1.193 raeburn 251: if (($env{'form.ltoken'}) || ($env{'form.linkprot'})) {
252: my $linkprot;
253: if ($env{'form.ltoken'}) {
1.177 raeburn 254: my %info = &Apache::lonnet::tmpget($env{'form.ltoken'});
255: $linkprot = $info{'linkprot'};
256: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'});
1.193 raeburn 257: } else {
258: $linkprot = $env{'form.linkprot'};
1.177 raeburn 259: }
260: if ($linkprot) {
261: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2);
262: if ($env{'user.linkprotector'}) {
263: my @protectors = split(/,/,$env{'user.linkprotector'});
264: unless (grep(/^\Q$linkprotector\E$/,@protectors)) {
265: push(@protectors,$linkprotector);
266: @protectors = sort { $a <=> $b } @protectors;
267: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)});
268: }
269: } else {
270: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector });
271: }
272: if ($env{'user.linkproturi'}) {
273: my @proturis = split(/,/,$env{'user.linkproturi'});
1.179 raeburn 274: unless (grep(/^\Q$deeplink\E$/,@proturis)) {
1.177 raeburn 275: push(@proturis,$deeplink);
276: @proturis = sort @proturis;
277: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)});
278: }
279: } else {
280: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink});
281: }
282: }
1.193 raeburn 283: } elsif ($env{'form.linkkey'} ne '') {
1.179 raeburn 284: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
1.193 raeburn 285: my $linkkey = $env{'form.linkkey'};
1.179 raeburn 286: if ($env{'user.deeplinkkey'}) {
287: my @linkkeys = split(/,/,$env{'user.deeplinkkey'});
288: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) {
289: push(@linkkeys,$linkkey);
1.193 raeburn 290: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))});
1.179 raeburn 291: }
292: } else {
293: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey});
294: }
295: my $deeplink = $env{'form.firsturl'};
296: if ($env{'user.keyedlinkuri'}) {
297: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'});
298: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) {
299: push(@keyeduris,$deeplink);
300: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))});
301: }
302: } else {
303: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink});
304: }
305: }
1.177 raeburn 306: }
1.169 raeburn 307: $r->print(
1.160 kruse 308: $start_page
309: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
310: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
311: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
312: .$end_page
313: );
1.169 raeburn 314: return OK;
1.160 kruse 315: }
316:
317: # ---------------------------------------------------- No valid token, continue
318:
319: # ---------------------------- Not possible to really login to domain "public"
320: if ($env{'form.domain'} eq 'public') {
321: $env{'form.domain'}='';
322: $env{'form.username'}='';
323: }
324:
325: # ------ Is this page requested because /adm/migrateuser detected an IP change?
326: my %sessiondata;
327: if ($env{'form.iptoken'}) {
328: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
1.162 raeburn 329: unless ($sessiondata{'sessionserver'}) {
330: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
331: delete($env{'form.iptoken'});
332: }
1.160 kruse 333: }
334: # ----------------------------------------------------------- Process Interface
335: $env{'form.interface'}=~s/\W//g;
336:
337: (undef,undef,undef,undef,undef,undef,my $clientmobile) =
1.192 raeburn 338: &Apache::loncommon::decode_user_agent($r);
1.160 kruse 339:
340: my $iconpath=
341: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
342:
343: my $domain = &Apache::lonnet::default_login_domain();
1.161 raeburn 344: my $defdom = $domain;
1.160 kruse 345: if ($lonhost ne '') {
346: unless ($sessiondata{'sessionserver'}) {
1.193 raeburn 347: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie);
1.160 kruse 348: if ($redirect) {
349: $r->print($redirect);
350: return OK;
351: }
352: }
353: }
354:
355: if (($sessiondata{'domain'}) &&
1.175 raeburn 356: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) {
1.160 kruse 357: $domain=$sessiondata{'domain'};
358: } elsif (($env{'form.domain'}) &&
359: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
360: $domain=$env{'form.domain'};
361: }
362:
363: my $role = $r->dir_config('lonRole');
364: my $loadlim = $r->dir_config('lonLoadLim');
365: my $uloadlim= $r->dir_config('lonUserLoadLim');
366: my $servadm = $r->dir_config('lonAdmEMail');
367: my $tabdir = $r->dir_config('lonTabDir');
368: my $include = $r->dir_config('lonIncludes');
369: my $expire = $r->dir_config('lonExpire');
370: my $version = $r->dir_config('lonVersion');
371: my $host_name = &Apache::lonnet::hostname($lonhost);
372:
373: # --------------------------------------------- Default values for login fields
374:
375: my ($authusername,$authdomain);
376: if ($sessiondata{'username'}) {
377: $authusername=$sessiondata{'username'};
378: } else {
379: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
380: $authusername=($env{'form.username'}?$env{'form.username'}:'');
381: }
382: if ($sessiondata{'domain'}) {
383: $authdomain=$sessiondata{'domain'};
384: } else {
385: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
386: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
387: }
388:
389: # ---------------------------------------------------------- Determine own load
390: my $loadavg;
391: {
392: my $loadfile=Apache::File->new('/proc/loadavg');
393: $loadavg=<$loadfile>;
394: }
395: $loadavg =~ s/\s.*//g;
396:
397: my ($loadpercent,$userloadpercent);
398: if ($loadlim) {
399: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
400: }
401: if ($uloadlim) {
402: $userloadpercent=&Apache::lonnet::userload();
403: }
404:
405: my $firsturl=
406: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
407:
408: # ----------------------------------------------------------- Get announcements
409: my $announcements=&Apache::lonnet::getannounce();
410: # -------------------------------------------------------- Set login parameters
411:
412: my @hexstr=('0','1','2','3','4','5','6','7',
413: '8','9','a','b','c','d','e','f');
414: my $lkey='';
415: for (0..7) {
416: $lkey.=$hexstr[rand(15)];
417: }
418:
419: my $ukey='';
420: for (0..7) {
421: $ukey.=$hexstr[rand(15)];
422: }
423:
424: my $lextkey=hex($lkey);
425: if ($lextkey>2147483647) { $lextkey-=4294967296; }
426:
427: my $uextkey=hex($ukey);
428: if ($uextkey>2147483647) { $uextkey-=4294967296; }
429:
430: # -------------------------------------------------------- Store away log token
1.196 raeburn 431: my ($tokenextras,$tokentype,$linkprot_for_login);
1.193 raeburn 432: my @names = ('role','symb','iptoken','ltoken','linkprot','linkkey');
1.192 raeburn 433: foreach my $name (@names) {
434: if ($env{'form.'.$name} ne '') {
435: if ($name eq 'ltoken') {
1.193 raeburn 436: my %info = &Apache::lonnet::tmpget($env{'form.'.$name});
1.192 raeburn 437: if ($info{'linkprot'}) {
1.196 raeburn 438: $linkprot_for_login = $info{'linkprot'};
1.192 raeburn 439: $tokenextras .= '&linkprot='.&escape($info{'linkprot'});
440: $tokentype = 'link';
441: last;
442: }
443: } else {
444: $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name});
1.193 raeburn 445: if (($name eq 'linkkey') || ($name eq 'linkprot')) {
1.196 raeburn 446: if (($env{'form.retry'}) && (!$env{'form.ltoken'}) && ($name eq 'linkprot')) {
447: $linkprot_for_login = $env{'form.linkprot'};
448: }
1.192 raeburn 449: $tokentype = 'link';
450: }
451: }
1.160 kruse 452: }
453: }
1.192 raeburn 454: if ($tokentype) {
455: $tokenextras .= ":$tokentype";
1.177 raeburn 456: }
1.160 kruse 457: my $logtoken=Apache::lonnet::reply(
1.193 raeburn 458: 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras,
1.160 kruse 459: $lonhost);
460:
461: # -- If we cannot talk to ourselves, or hostID does not map to a hostname
462: # we are in serious trouble
463:
464: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
465: if ($logtoken eq 'no_such_host') {
466: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
467: }
1.191 raeburn 468: if ($env{'form.ltoken'}) {
469: &Apache::lonnet::tmpdel($env{'form.ltoken'});
470: delete($env{'form.ltoken'});
471: }
1.160 kruse 472: my $spares='';
1.180 raeburn 473: my (@sparehosts,%spareservers);
474: my $sparesref = &Apache::lonnet::this_host_spares($defdom);
475: if (ref($sparesref) eq 'HASH') {
476: foreach my $key (keys(%{$sparesref})) {
477: if (ref($sparesref->{$key}) eq 'ARRAY') {
478: my @sorted = sort { &Apache::lonnet::hostname($a) cmp
479: &Apache::lonnet::hostname($b);
480: } @{$sparesref->{$key}};
481: if (@sorted) {
482: if ($key eq 'primary') {
483: unshift(@sparehosts,@sorted);
484: } elsif ($key eq 'default') {
485: push(@sparehosts,@sorted);
486: }
487: }
488: }
489: }
490: }
491: foreach my $hostid (@sparehosts) {
1.160 kruse 492: next if ($hostid eq $lonhost);
493: my $hostname = &Apache::lonnet::hostname($hostid);
1.180 raeburn 494: next if (($hostname eq '') || ($spareservers{$hostname}));
495: $spareservers{$hostname} = 1;
496: my $protocol = $Apache::lonnet::protocol{$hostid};
497: $protocol = 'http' if ($protocol ne 'https');
498: $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'.
1.160 kruse 499: $hostname.
500: '/adm/login?domain='.$authdomain.'">'.
501: $hostname.'</a>'.
1.180 raeburn 502: ' '.&mt('(preferred)').'</span>'.$/;
1.160 kruse 503: }
504: if ($spares) {
505: $spares.= '<br />';
506: }
507: my %all_hostnames = &Apache::lonnet::all_hostnames();
508: foreach my $hostid (sort
509: {
510: &Apache::lonnet::hostname($a) cmp
511: &Apache::lonnet::hostname($b);
512: }
513: keys(%all_hostnames)) {
1.180 raeburn 514: next if ($hostid eq $lonhost);
1.160 kruse 515: my $hostname = &Apache::lonnet::hostname($hostid);
1.180 raeburn 516: next if (($hostname eq '') || ($spareservers{$hostname}));
1.181 raeburn 517: $spareservers{$hostname} = 1;
1.180 raeburn 518: my $protocol = $Apache::lonnet::protocol{$hostid};
519: $protocol = 'http' if ($protocol ne 'https');
520: $spares.='<br /><a href="'.$protocol.'://'.
1.160 kruse 521: $hostname.
522: '/adm/login?domain='.$authdomain.'">'.
523: $hostname.'</a>';
524: }
525: $r->print(
1.180 raeburn 526: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
527: .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">'
528: .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>'
1.160 kruse 529: .&mt('The LearningOnline Network with CAPA')
530: .'</title></head>'
531: .'<body bgcolor="#FFFFFF">'
532: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
1.180 raeburn 533: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />'
1.160 kruse 534: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
535: if ($spares) {
536: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
537: .'</p>'
538: .$spares);
539: }
540: $r->print('</body>'
541: .'</html>'
542: );
543: return OK;
544: }
545:
546: # ----------------------------------------------- Apparently we are in business
547: $servadm=~s/\,/\<br \/\>/g;
548:
549: # ----------------------------------------------------------- Front page design
550: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
551: my $font=&Apache::loncommon::designparm('login.font',$domain);
552: my $link=&Apache::loncommon::designparm('login.link',$domain);
553: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
554: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
555: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
556: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
557: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
558: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
559: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
560: my $img=&Apache::loncommon::designparm('login.img',$domain);
561: my $domainlogo=&Apache::loncommon::domainlogo($domain);
562: my $showbanner = 1;
563: my $showmainlogo = 1;
564: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
565: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
566: }
567: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
568: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
569: }
570: my $showadminmail;
571: my @possdoms = &Apache::lonnet::current_machine_domains();
572: if (grep(/^\Q$domain\E$/,@possdoms)) {
573: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
574: }
575: my $showcoursecat =
576: &Apache::loncommon::designparm('login.coursecatalog',$domain);
577: my $shownewuserlink =
578: &Apache::loncommon::designparm('login.newuser',$domain);
579: my $showhelpdesk =
580: &Apache::loncommon::designparm('login.helpdesk',$domain);
581: my $now=time;
582: my $js = (<<ENDSCRIPT);
583:
584: <script type="text/javascript" language="JavaScript">
585: // <![CDATA[
586: function send()
587: {
588: this.document.server.elements.uname.value
589: =this.document.client.elements.uname.value;
590:
591: this.document.server.elements.udom.value
592: =this.document.client.elements.udom.value;
593:
594: uextkey=this.document.client.elements.uextkey.value;
595: lextkey=this.document.client.elements.lextkey.value;
596: initkeys();
597:
598: if(this.document.server.action.substr(0,5) === 'http:'){
1.165 raeburn 599: this.document.server.elements.upass0.value
600: =getCrypted(this.document.client.elements.upass$now.value);
1.166 raeburn 601: } else {
602: this.document.server.elements.upass0.value
603: =this.document.client.elements.upass$now.value;
1.167 raeburn 604: }
1.160 kruse 605:
606: this.document.client.elements.uname.value='';
607: this.document.client.elements.upass$now.value='';
608:
609: this.document.server.submit();
610: return false;
611: }
612:
613: function enableInput() {
614: this.document.client.elements.upass$now.removeAttribute("readOnly");
615: this.document.client.elements.uname.removeAttribute("readOnly");
616: this.document.client.elements.udom.removeAttribute("readOnly");
617: return;
618: }
619:
620: // ]]>
621: </script>
622:
623: ENDSCRIPT
624:
1.184 raeburn 625: my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing,
626: $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip);
627: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
628: @hosts = &Apache::lonnet::current_machine_ids();
629: $lonhost_in_use = $lonhost;
630: if (@hosts > 1) {
631: foreach my $hostid (@hosts) {
632: if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
633: $lonhost_in_use = $hostid;
634: last;
635: }
636: }
637: }
638: $saml_prefix = $defdom.'.login.saml_';
639: if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) {
640: $saml_landing = 1;
641: $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use};
642: $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use};
643: $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use};
644: $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use};
645: $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use};
646: $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use};
647: }
648: if ($saml_landing) {
649: if ($samlssotext eq '') {
650: $samlssotext = 'SSO Login';
651: }
652: if ($samlnonsso eq '') {
653: $samlnonsso = 'Non-SSO Login';
654: }
655: $js .= <<"ENDSAMLJS";
656:
657: <script type="text/javascript">
658: // <![CDATA[
659: function toggleLClogin() {
660: if (document.getElementById('LC_standard_login')) {
661: if (document.getElementById('LC_standard_login').style.display == 'none') {
662: document.getElementById('LC_standard_login').style.display = 'inline-block';
663: if (document.getElementById('LC_login_text')) {
664: document.getElementById('LC_login_text').innerHTML = '$samlnonsso';
665: }
1.195 raeburn 666: if ( document.client.uname ) { document.client.uname.focus(); }
1.184 raeburn 667: if (document.getElementById('LC_SSO_login')) {
668: document.getElementById('LC_SSO_login').style.display = 'none';
669: }
670: } else {
671: document.getElementById('LC_standard_login').style.display = 'none';
672: if (document.getElementById('LC_login_text')) {
673: document.getElementById('LC_login_text').innerHTML = '$samlssotext';
674: }
675: if (document.getElementById('LC_SSO_login')) {
676: document.getElementById('LC_SSO_login').style.display = 'inline-block';
677: }
678: }
679: }
680: return;
681: }
682:
683: // ]]>
684: </script>
685:
686: ENDSAMLJS
687: }
688:
1.160 kruse 689: # --------------------------------------------------- Print login screen header
690:
691: my %add_entries = (
692: bgcolor => "$mainbg",
693: text => "$font",
694: link => "$link",
695: vlink => "$vlink",
696: alink => "$alink",
697: onload => 'javascript:enableInput();',);
698:
1.186 raeburn 699: my ($headextra,$headextra_exempt);
1.164 raeburn 700: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
701: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
1.161 raeburn 702: if ($headextra) {
703: my $omitextra;
704: if ($headextra_exempt ne '') {
705: my @exempt = split(',',$headextra_exempt);
1.182 raeburn 706: my $ip = &Apache::lonnet::get_requestor_ip();
1.161 raeburn 707: if (grep(/^\Q$ip\E$/,@exempt)) {
708: $omitextra = 1;
709: }
710: }
711: unless ($omitextra) {
712: my $confname = $defdom.'-domainconfig';
1.163 raeburn 713: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
1.161 raeburn 714: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
715: unless ($extra eq '-1') {
716: $js .= "\n".$extra."\n";
717: }
718: }
719: }
720: }
721:
1.160 kruse 722: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
723: { 'redirect' => [$expire,'/adm/roles'],
724: 'add_entries' => \%add_entries,
725: 'only_body' => 1,}));
726:
727: # ----------------------------------------------------------------------- Texts
728:
729: my %lt=&Apache::lonlocal::texthash(
730: 'un' => 'Username',
731: 'pw' => 'Password',
732: 'dom' => 'Domain',
733: 'perc' => 'percent',
734: 'load' => 'Server Load',
735: 'userload' => 'User Load',
736: 'catalog' => 'Course/Community Catalog',
737: 'log' => 'Log in',
738: 'help' => 'Log-in Help',
739: 'serv' => 'Server',
740: 'servadm' => 'Server Administration',
741: 'helpdesk' => 'Contact Helpdesk',
742: 'forgotpw' => 'Forgot password?',
743: 'newuser' => 'New User?',
1.184 raeburn 744: 'change' => 'Change?',
1.160 kruse 745: );
746: # -------------------------------------------------- Change password field name
747:
748: my $forgotpw = &forgotpwdisplay(%lt);
749: $forgotpw .= '<br />' if $forgotpw;
750: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
751: if ($loginhelp) {
752: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
753: }
754:
755: # ---------------------------------------------------- Serve out DES JavaScript
756: {
757: my $jsh=Apache::File->new($include."/londes.js");
758: $r->print(<$jsh>);
759: }
760: # ---------------------------------------------------------- Serve rest of page
761:
762: $r->print(
763: '<div class="LC_Box"'
764: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
765: );
766:
767: $r->print(<<ENDSERVERFORM);
768: <form name="server" action="/adm/authenticate" method="post" target="_top">
769: <input type="hidden" name="logtoken" value="$logtoken" />
770: <input type="hidden" name="serverid" value="$lonhost" />
771: <input type="hidden" name="uname" value="" />
772: <input type="hidden" name="upass0" value="" />
773: <input type="hidden" name="udom" value="" />
774: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
775: <input type="hidden" name="localres" value="$env{'form.localres'}" />
776: </form>
777: ENDSERVERFORM
778: my $coursecatalog;
779: if (($showcoursecat eq '') || ($showcoursecat)) {
780: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
781: }
782: my $newuserlink;
783: if ($shownewuserlink) {
784: $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
785: }
786: my $logintitle =
787: '<h2 class="LC_hcell"'
788: .' style="background:'.$loginbox_header_bgcol.';'
789: .' color:'.$loginbox_header_textcol.'">'
790: .$lt{'log'}
791: .'</h2>';
792:
793: my $noscript_warning='<noscript><span class="LC_warning"><b>'
794: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
795: .'</b></span></noscript>';
796: my $helpdeskscript;
797: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
798: $authdomain,\$helpdeskscript,
799: $showhelpdesk,\@possdoms);
800:
801: my $mobileargs;
802: if ($clientmobile) {
803: $mobileargs = 'autocapitalize="off" autocorrect="off"';
804: }
805: my $loginform=(<<LFORM);
1.184 raeburn 806: <form name="client" action="" onsubmit="return(send())" id="lclogin">
1.160 kruse 807: <input type="hidden" name="lextkey" value="$lextkey" />
808: <input type="hidden" name="uextkey" value="$uextkey" />
809: <b><label for="uname">$lt{'un'}</label>:</b><br />
810: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
811: <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
812: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
813: <b><label for="udom">$lt{'dom'}</label>:</b><br />
814: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
815: <input type="submit" value="$lt{'log'}" />
816: </form>
817: LFORM
818:
819: if ($showbanner) {
1.194 raeburn 820: my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain);
821: if ($alttext eq '') {
822: $alttext = 'The Learning Online Network with CAPA';
823: }
1.160 kruse 824: $r->print(<<HEADER);
825: <!-- The LON-CAPA Header -->
826: <div style="background:$pgbg;margin:0;width:100%;">
1.194 raeburn 827: <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" />
1.160 kruse 828: </div>
829: HEADER
830: }
1.184 raeburn 831:
832: my $stdauthformstyle = 'inline-block';
833: my $ssoauthstyle = 'none';
834: my $logintype;
835: $r->print('<div style="float:left;margin-top:0;">');
836: if ($saml_landing) {
837: $ssoauthstyle = 'inline-block';
838: $stdauthformstyle = 'none';
839: $logintype = $samlssotext;
840: my $ssologin = '/adm/sso';
841: if ($samlssourl ne '') {
842: $ssologin = $samlssourl;
843: }
1.192 raeburn 844: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
845: my $querystring;
846: if ($env{'form.firsturl'} ne '') {
847: $querystring = 'origurl=';
848: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) {
849: $querystring .= &uri_escape_utf8($env{'form.firsturl'});
850: } else {
851: $querystring .= &uri_escape($env{'form.firsturl'});
852: }
853: $querystring = &HTML::Entities::encode($querystring,"'");
854: }
855: if ($env{'form.ltoken'} ne '') {
856: $querystring .= (($querystring eq '')?'':'&') . 'ltoken='.
857: &HTML::Entities::encode(&uri_escape($env{'form.ltoken'}));
858: } elsif ($env{'form.linkkey'}) {
859: $querystring .= (($querystring eq '')?'':'&') . 'linkkey='.
860: &HTML::Entities::encode(&uri_escape($env{'form.linkkey'}));
861: }
862: if ($querystring ne '') {
863: $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring;
1.188 raeburn 864: }
1.192 raeburn 865: } elsif ($logtoken ne '') {
866: $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken;
1.191 raeburn 867: }
1.184 raeburn 868: my $ssohref;
869: if ($samlssoimg ne '') {
1.194 raeburn 870: $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'.
871: '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>';
1.184 raeburn 872: } else {
873: $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>';
874: }
875: if (($env{'form.saml'} eq 'no') ||
876: (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) {
877: $ssoauthstyle = 'none';
878: $stdauthformstyle = 'inline-block';
879: $logintype = $samlnonsso;
880: }
881: $r->print(<<ENDSAML);
882: <p>
883: Log-in type:
884: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br />
885: <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span>
886: </p>
887: <div style="display:$ssoauthstyle" id="LC_SSO_login">
888: <div class="LC_Box" style="padding-top: 10px;">
889: $ssohref
890: $noscript_warning
891: </div>
892: <div class="LC_Box" style="padding-top: 10px;">
893: $loginhelp
894: $contactblock
895: $coursecatalog
896: </div>
897: </div>
898: ENDSAML
1.191 raeburn 899: } else {
900: if ($env{'form.ltoken'}) {
901: &Apache::lonnet::tmpdel($env{'form.ltoken'});
902: delete($env{'form.ltoken'});
903: }
1.184 raeburn 904: }
1.196 raeburn 905: my $in_frame_js;
906: if ($linkprot_for_login) {
907: my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2);
908: if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) {
909: my $set_target;
910: if ($env{'form.retry'}) {
911: if ($linkproturi eq $env{'form.firsturl'}) {
912: $set_target = " document.server.target = '_self';";
913: }
914: } else {
915: $set_target = <<ENDTARG;
916: var linkproturi = '$linkproturi';
917: var path = document.location.pathname.replace( new RegExp('^/adm/launch'),'');
918: if (linkproturi == path) {
919: document.server.target = '_self';
920: }
921: ENDTARG
922: }
923: $in_frame_js = <<ENDJS;
924: <script type="text/javascript">
925: // <![CDATA[
926: if ((window.self !== window.top) && (document.server.target != '_self')) {
927: $set_target
928: }
929: // ]]>
930: </script>
931: ENDJS
932: }
933: }
1.184 raeburn 934:
935: $r->print(<<ENDLOGIN);
936: <div style="display:$stdauthformstyle;" id="LC_standard_login">
1.160 kruse 937: <div class="LC_Box" style="background:$loginbox_bg;">
938: $logintitle
939: $loginform
940: $noscript_warning
941: </div>
942:
943: <div class="LC_Box" style="padding-top: 10px;">
944: $loginhelp
945: $forgotpw
946: $contactblock
947: $newuserlink
948: $coursecatalog
949: </div>
950: </div>
951:
1.184 raeburn 952: ENDLOGIN
953: $r->print('</div><div>'."\n");
1.160 kruse 954: if ($showmainlogo) {
1.194 raeburn 955: my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain);
956: $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n");
1.160 kruse 957: }
958: $r->print(<<ENDTOP);
959: $announcements
960: </div>
961: <hr style="clear:both;" />
962: ENDTOP
963: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
964: $domainrow = <<"END";
965: <tr>
966: <td align="left" valign="top">
967: <small><b>$lt{'dom'}: </b></small>
968: </td>
969: <td align="left" valign="top">
970: <small><tt> $domain</tt></small>
971: </td>
972: </tr>
973: END
974: $serverrow = <<"END";
975: <tr>
976: <td align="left" valign="top">
977: <small><b>$lt{'serv'}: </b></small>
978: </td>
979: <td align="left" valign="top">
980: <small><tt> $lonhost ($role)</tt></small>
981: </td>
982: </tr>
983: END
984: if ($loadlim) {
985: $loadrow = <<"END";
986: <tr>
987: <td align="left" valign="top">
988: <small><b>$lt{'load'}: </b></small>
989: </td>
990: <td align="left" valign="top">
991: <small><tt> $loadpercent $lt{'perc'}</tt></small>
992: </td>
993: </tr>
994: END
995: }
996: if ($uloadlim) {
997: $userloadrow = <<"END";
998: <tr>
999: <td align="left" valign="top">
1000: <small><b>$lt{'userload'}: </b></small>
1001: </td>
1002: <td align="left" valign="top">
1003: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
1004: </td>
1005: </tr>
1006: END
1007: }
1008: if (($version ne '') && ($version ne '<!-- VERSION -->')) {
1009: $versionrow = <<"END";
1010: <tr>
1011: <td colspan="2" align="left">
1012: <small>$version</small>
1013: </td>
1014: </tr>
1015: END
1016: }
1017:
1018: $r->print(<<ENDDOCUMENT);
1019: <div style="float: left;">
1020: <table border="0" cellspacing="0" cellpadding="0">
1021: $domainrow
1022: $serverrow
1023: $loadrow
1024: $userloadrow
1025: $versionrow
1026: </table>
1027: </div>
1028: <div style="float: right;">
1029: $domainlogo
1030: </div>
1031: <br style="clear:both;" />
1032: </div>
1033:
1.197 ! raeburn 1034: $in_frame_js
1.160 kruse 1035: <script type="text/javascript">
1036: // <![CDATA[
1037: // the if prevents the script error if the browser can not handle this
1038: if ( document.client.uname ) { document.client.uname.focus(); }
1039: // ]]>
1040: </script>
1041: $helpdeskscript
1042:
1043: ENDDOCUMENT
1044: my %endargs = ( 'noredirectlink' => 1, );
1045: $r->print(&Apache::loncommon::end_page(\%endargs));
1046: return OK;
1047: }
1048:
1049: sub check_loginvia {
1.193 raeburn 1050: my ($domain,$lonhost,$lonidsdir,$balcookie) = @_;
1.176 raeburn 1051: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') {
1.160 kruse 1052: return;
1053: }
1054: my %domconfhash = &Apache::loncommon::get_domainconf($domain);
1055: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
1056: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
1057: my $output;
1058: if ($loginvia ne '') {
1059: my $noredirect;
1.182 raeburn 1060: my $ip = &Apache::lonnet::get_requestor_ip();
1.160 kruse 1061: if ($ip eq '127.0.0.1') {
1062: $noredirect = 1;
1063: } else {
1064: if ($loginvia_exempt ne '') {
1065: my @exempt = split(',',$loginvia_exempt);
1066: if (grep(/^\Q$ip\E$/,@exempt)) {
1067: $noredirect = 1;
1068: }
1069: }
1070: }
1071: unless ($noredirect) {
1072: my ($newhost,$path);
1073: if ($loginvia =~ /:/) {
1074: ($newhost,$path) = split(':',$loginvia);
1075: } else {
1076: $newhost = $loginvia;
1077: }
1078: if ($newhost ne $lonhost) {
1079: if (&Apache::lonnet::hostname($newhost) ne '') {
1.176 raeburn 1080: if ($balcookie) {
1081: my ($balancer,$cookie) = split(/:/,$balcookie);
1082: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) {
1083: my ($udom,$uname,$cookieid) = ($1,$2,$3);
1084: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') {
1085: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) {
1086: while (my $filename=readdir($dh)) {
1087: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) {
1088: my $handle = $1;
1089: my %hash =
1090: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir,
1091: ['request.balancercookie',
1092: 'user.linkedenv']);
1093: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") {
1094: if (unlink("$lonidsdir/$filename")) {
1095: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
1096: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") &&
1097: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) {
1098: unlink("$lonidsdir/$hash{'user.linkedenv'}.id");
1099: }
1100: }
1101: }
1102: last;
1103: }
1104: }
1105: closedir($dh);
1106: }
1107: }
1108: }
1109: }
1.193 raeburn 1110: $output = &redirect_page($newhost,$path);
1.160 kruse 1111: }
1112: }
1113: }
1114: }
1115: return $output;
1116: }
1117:
1118: sub redirect_page {
1.193 raeburn 1119: my ($desthost,$path) = @_;
1.178 raeburn 1120: my $hostname = &Apache::lonnet::hostname($desthost);
1.160 kruse 1121: my $protocol = $Apache::lonnet::protocol{$desthost};
1122: $protocol = 'http' if ($protocol ne 'https');
1123: unless ($path =~ m{^/}) {
1124: $path = '/'.$path;
1125: }
1.178 raeburn 1126: my $url = $protocol.'://'.$hostname.$path;
1.160 kruse 1127: if ($env{'form.firsturl'} ne '') {
1.188 raeburn 1128: my $querystring;
1129: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) {
1130: $querystring = &uri_escape_utf8($env{'form.firsturl'});
1131: } else {
1132: $querystring = &uri_escape($env{'form.firsturl'});
1133: }
1134: $querystring = &HTML::Entities::encode($querystring,"'");
1.192 raeburn 1135: $url .='?firsturl='.$querystring;
1.160 kruse 1136: }
1.193 raeburn 1137: if (($env{'form.ltoken'}) || ($env{'form.linkkey'} ne '')) {
1138: my %link_info;
1139: if ($env{'form.ltoken'}) {
1140: $link_info{'ltoken'} = $env{'form.ltoken'};
1141: } elsif ($env{'form.linkkey'} ne '') {
1142: $link_info{'linkkey'} = $env{'form.linkkey'};
1143: }
1144: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link');
1145: unless (($token eq 'con_lost') || ($token eq 'refused') ||
1146: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
1147: $url .= (($url=~/\?/)?'&':'?') . 'ttoken='.$token;
1.177 raeburn 1148: }
1149: }
1.160 kruse 1150: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
1151: {'redirect' => [0,$url],});
1152: my $end_page = &Apache::loncommon::end_page();
1153: return $start_page.$end_page;
1154: }
1155:
1156: sub contactdisplay {
1157: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
1158: $possdoms) = @_;
1159: my $contactblock;
1160: my $origmail;
1161: if (ref($possdoms) eq 'ARRAY') {
1162: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
1163: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
1164: }
1165: }
1166: my $requestmail =
1167: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
1168: $authdomain,$origmail);
1169: unless ($showhelpdesk eq '0') {
1170: if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
1171: $showhelpdesk = 1;
1172: } else {
1173: $showhelpdesk = 0;
1174: }
1175: }
1176: if ($servadm && $showadminmail) {
1177: $contactblock .= $$lt{'servadm'}.':<br />'.
1178: '<tt>'.$servadm.'</tt><br />';
1179: }
1180: if ($showhelpdesk) {
1181: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
1182: my $thisurl = &escape('/adm/login');
1183: $$helpdeskscript = <<"ENDSCRIPT";
1184: <script type="text/javascript">
1185: // <![CDATA[
1186: function helpdesk() {
1187: var possdom = document.client.udom.value;
1188: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),'');
1189: if (codedom == '') {
1190: codedom = "$authdomain";
1191: }
1192: var querystr = "origurl=$thisurl&codedom="+codedom;
1193: document.location.href = "/adm/helpdesk?"+querystr;
1194: return;
1195: }
1196: // ]]>
1197: </script>
1198: ENDSCRIPT
1199: }
1200: return $contactblock;
1201: }
1202:
1203: sub forgotpwdisplay {
1204: my (%lt) = @_;
1205: my $prompt_for_resetpw = 1;
1206: if ($prompt_for_resetpw) {
1207: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
1208: }
1209: return;
1210: }
1211:
1212: sub coursecatalog_link {
1213: my ($linkname) = @_;
1214: return <<"END";
1215: <a href="/adm/coursecatalog">$linkname</a>
1216: END
1217: }
1218:
1219: sub newuser_link {
1220: my ($linkname) = @_;
1221: return '<a href="/adm/createaccount">'.$linkname.'</a>';
1222: }
1223:
1.192 raeburn 1224: sub decode_token {
1225: my ($info) = @_;
1226: my ($firsturl,@rest)=split(/\&/,$info);
1227: my %form;
1228: if ($firsturl ne '') {
1229: $form{'firsturl'} = &unescape($firsturl);
1230: }
1231: foreach my $item (@rest) {
1232: my ($key,$value) = split(/=/,$item);
1233: $form{$key} = &unescape($value);
1234: }
1235: return %form;
1236: }
1237:
1.160 kruse 1238: 1;
1239: __END__
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