Annotation of loncom/auth/lonlogin.pm, revision 1.200
1.160 kruse 1: # The LearningOnline Network
2: # Login Screen
3: #
1.200 ! raeburn 4: # $Id: lonlogin.pm,v 1.199 2022/06/18 02:10:18 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'} = $info{'linkprot'};
1.199 raeburn 71: if ($info{'linkprotuser'} ne '') {
72: $env{'form.linkprotuser'} = $info{'linkprotuser'};
73: }
1.193 raeburn 74: } elsif ($info{'linkkey'} ne '') {
75: $env{'form.linkkey'} = $info{'linkkey'};
76: }
77: } elsif (($env{'form.sso'}) || ($env{'form.retry'})) {
1.192 raeburn 78: my $infotoken;
79: if ($env{'form.sso'}) {
80: $infotoken = $env{'form.sso'};
81: } else {
82: $infotoken = $env{'form.retry'};
83: }
84: my $data = &Apache::lonnet::reply('tmpget:'.$infotoken,$lonhost);
85: unless (($data=~/^error/) || ($data eq 'con_lost') ||
86: ($data eq 'no_such_host')) {
87: my %info = &decode_token($data);
88: foreach my $item (keys(%info)) {
89: $env{'form.'.$item} = $info{$item};
90: }
91: &Apache::lonnet::tmpdel($infotoken);
92: }
93: } else {
94: if (!defined($env{'form.firsturl'})) {
95: &Apache::lonacc::get_posted_cgi($r,['firsturl']);
96: }
97: if (!defined($env{'form.firsturl'})) {
98: if ($ENV{'REDIRECT_URL'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) {
99: $env{'form.firsturl'} = $ENV{'REDIRECT_URL'};
100: }
101: }
102: if (($env{'form.firsturl'} =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$}) &&
1.193 raeburn 103: (!$env{'form.ltoken'}) && (!$env{'form.linkprot'}) && (!$env{'form.linkkey'})) {
1.192 raeburn 104: &Apache::lonacc::get_posted_cgi($r,['linkkey']);
105: }
106: if ($env{'form.firsturl'} eq '/adm/logout') {
107: delete($env{'form.firsturl'});
1.172 raeburn 108: }
109: }
1.160 kruse 110:
1.169 raeburn 111: # For "public user" - remove any exising "public" cookie, as user really wants to log-in
1.171 raeburn 112: my ($handle,$lonidsdir,$expirepub,$userdom);
1.176 raeburn 113: $lonidsdir=$r->dir_config('lonIDsDir');
1.169 raeburn 114: unless ($r->header_only) {
1.171 raeburn 115: $handle = &Apache::lonnet::check_for_valid_session($r,'lonID',undef,\$userdom);
1.169 raeburn 116: if ($handle ne '') {
117: if ($handle=~/^publicuser\_/) {
118: unlink($r->dir_config('lonIDsDir')."/$handle.id");
119: undef($handle);
1.171 raeburn 120: undef($userdom);
121: $expirepub = 1;
1.169 raeburn 122: }
123: }
124: }
125:
1.160 kruse 126: &Apache::loncommon::no_cache($r);
127: &Apache::lonlocal::get_language_handle($r);
128: &Apache::loncommon::content_type($r,'text/html');
1.171 raeburn 129: if ($expirepub) {
1.170 raeburn 130: my $c = new CGI::Cookie(-name => 'lonPubID',
1.169 raeburn 131: -value => '',
132: -expires => '-10y',);
133: $r->header_out('Set-cookie' => $c);
1.171 raeburn 134: } elsif (($handle eq '') && ($userdom ne '')) {
1.173 raeburn 135: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
136: foreach my $name (keys(%cookies)) {
137: next unless ($name =~ /^lon(|S|Link|Pub)ID$/);
138: my $c = new CGI::Cookie(-name => $name,
139: -value => '',
140: -expires => '-10y',);
141: $r->headers_out->add('Set-cookie' => $c);
142: }
1.169 raeburn 143: }
1.160 kruse 144: $r->send_http_header;
145: return OK if $r->header_only;
146:
147:
148: # Are we re-routing?
149: my $londocroot = $r->dir_config('lonDocRoot');
150: if (-e "$londocroot/lon-status/reroute.txt") {
151: &Apache::lonauth::reroute($r);
152: return OK;
153: }
154:
1.174 raeburn 155: # Check if browser sent a LON-CAPA load balancer cookie (and this is a balancer)
156:
157: my ($found_server,$balancer_cookie) = &Apache::lonnet::check_for_balancer_cookie($r,1);
158: if ($found_server) {
159: my $hostname = &Apache::lonnet::hostname($found_server);
160: if ($hostname ne '') {
161: my $protocol = $Apache::lonnet::protocol{$found_server};
162: $protocol = 'http' if ($protocol ne 'https');
163: my $dest = '/adm/roles';
164: if ($env{'form.firsturl'} ne '') {
1.193 raeburn 165: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&');
1.174 raeburn 166: }
1.176 raeburn 167: my %info = (
168: balcookie => $lonhost.':'.$balancer_cookie,
169: );
1.193 raeburn 170: if ($env{'form.role'}) {
171: $info{'role'} = $env{'form.role'};
172: }
173: if ($env{'form.symb'}) {
174: $info{'symb'} = $env{'form.symb'};
1.177 raeburn 175: }
1.176 raeburn 176: my $balancer_token = &Apache::lonnet::tmpput(\%info,$found_server);
1.193 raeburn 177: unless (($balancer_token eq 'con_lost') || ($balancer_token eq 'refused') ||
178: ($balancer_token eq 'unknown_cmd') || ($balancer_token eq 'no_such_host')) {
1.187 raeburn 179: $dest .= (($dest=~/\?/)?'&':'?') . 'btoken='.$balancer_token;
1.176 raeburn 180: }
1.193 raeburn 181: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
182: my %link_info;
183: if ($env{'form.ltoken'}) {
184: $link_info{'ltoken'} = $env{'form.ltoken'};
185: } elsif ($env{'form.linkprot'}) {
186: $link_info{'linkprot'} = $env{'form.linkprot'};
1.199 raeburn 187: if ($env{'form.linkprotuser'} ne '') {
188: $link_info{'linkprotuser'} = $env{'form.linkprotuser'};
189: }
1.193 raeburn 190: } elsif ($env{'form.linkkey'} ne '') {
191: $link_info{'linkkey'} = $env{'form.linkkey'};
192: }
193: if (keys(%link_info)) {
194: $link_info{'origurl'} = $env{'form.firsturl'};
195: my $token = &Apache::lonnet::tmpput(\%link_info,$found_server,'link');
196: unless (($token eq 'con_lost') || ($token eq 'refused') ||
197: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
198: $dest .= (($dest=~/\?/)?'&':'?') . 'ttoken='.$token;
199: }
200: }
201: }
1.183 raeburn 202: unless ($found_server eq $lonhost) {
203: my $alias = &Apache::lonnet::use_proxy_alias($r,$found_server);
204: $hostname = $alias if ($alias ne '');
205: }
1.174 raeburn 206: my $url = $protocol.'://'.$hostname.$dest;
207: my $start_page =
208: &Apache::loncommon::start_page('Switching Server ...',undef,
209: {'redirect' => [0,$url],});
210: my $end_page = &Apache::loncommon::end_page();
211: $r->print($start_page.$end_page);
212: return OK;
213: }
214: }
215:
1.171 raeburn 216: #
1.176 raeburn 217: # Check if a LON-CAPA load balancer sent user here because user's browser sent
218: # it a balancer cookie for an active session on this server.
219: #
220:
1.193 raeburn 221: my $balcookie;
1.176 raeburn 222: if ($env{'form.btoken'}) {
223: my %info = &Apache::lonnet::tmpget($env{'form.btoken'});
224: $balcookie = $info{'balcookie'};
225: &Apache::lonnet::tmpdel($env{'form.btoken'});
226: delete($env{'form.btoken'});
227: }
228:
229: #
1.171 raeburn 230: # If browser sent an old cookie for which the session file had been removed
231: # check if configuration for user's domain has a portal URL set. If so
232: # switch user's log-in to the portal.
233: #
234:
235: if (($handle eq '') && ($userdom ne '')) {
236: my %domdefaults = &Apache::lonnet::get_domain_defaults($userdom);
237: if ($domdefaults{'portal_def'} =~ /^https?\:/) {
238: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
239: {'redirect' => [0,$domdefaults{'portal_def'}],});
240: my $end_page = &Apache::loncommon::end_page();
241: $r->print($start_page.$end_page);
242: return OK;
243: }
244: }
245:
1.160 kruse 246: # -------------------------------- Prevent users from attempting to login twice
247: if ($handle ne '') {
1.169 raeburn 248: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
249: my $start_page =
250: &Apache::loncommon::start_page('Already logged in');
251: my $end_page =
252: &Apache::loncommon::end_page();
253: my $dest = '/adm/roles';
254: if ($env{'form.firsturl'} ne '') {
1.193 raeburn 255: $dest = &HTML::Entities::encode($env{'form.firsturl'},'\'"<>&');
1.169 raeburn 256: }
1.193 raeburn 257: if (($env{'form.ltoken'}) || ($env{'form.linkprot'})) {
1.199 raeburn 258: my ($linkprot,$linkprotuser);
1.193 raeburn 259: if ($env{'form.ltoken'}) {
1.177 raeburn 260: my %info = &Apache::lonnet::tmpget($env{'form.ltoken'});
261: $linkprot = $info{'linkprot'};
1.199 raeburn 262: if ($info{'linkprotuser'} ne '') {
263: $linkprotuser = $info{'linkprotuser'};
264: }
1.193 raeburn 265: } else {
266: $linkprot = $env{'form.linkprot'};
1.199 raeburn 267: $linkprotuser = $env{'form.linkprotuser'};
1.177 raeburn 268: }
269: if ($linkprot) {
270: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2);
1.199 raeburn 271: if (($deeplink =~ m{^/tiny/$match_domain/\w+$}) &&
272: ($linkprotuser ne '') && ($linkprotuser ne $env{'user.name'}.':'.$env{'user.domain'})) {
273: my $ip = &Apache::lonnet::get_requestor_ip();
274: my %linkprotinfo = (
275: origurl => $deeplink,
276: linkprot => $linkprot,
277: linkprotuser => $linkprotuser,
278: );
1.200 ! raeburn 279: if ($env{'form.ltoken'}) {
! 280: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'});
! 281: }
1.199 raeburn 282: &Apache::migrateuser::logout($r,$ip,$handle,undef,undef,\%linkprotinfo);
283: return OK;
284: }
1.177 raeburn 285: if ($env{'user.linkprotector'}) {
286: my @protectors = split(/,/,$env{'user.linkprotector'});
287: unless (grep(/^\Q$linkprotector\E$/,@protectors)) {
288: push(@protectors,$linkprotector);
289: @protectors = sort { $a <=> $b } @protectors;
290: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)});
291: }
292: } else {
293: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector });
294: }
295: if ($env{'user.linkproturi'}) {
296: my @proturis = split(/,/,$env{'user.linkproturi'});
1.179 raeburn 297: unless (grep(/^\Q$deeplink\E$/,@proturis)) {
1.177 raeburn 298: push(@proturis,$deeplink);
299: @proturis = sort @proturis;
300: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)});
301: }
302: } else {
303: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink});
304: }
305: }
1.193 raeburn 306: } elsif ($env{'form.linkkey'} ne '') {
1.179 raeburn 307: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
1.193 raeburn 308: my $linkkey = $env{'form.linkkey'};
1.179 raeburn 309: if ($env{'user.deeplinkkey'}) {
310: my @linkkeys = split(/,/,$env{'user.deeplinkkey'});
311: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) {
312: push(@linkkeys,$linkkey);
1.193 raeburn 313: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))});
1.179 raeburn 314: }
315: } else {
316: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey});
317: }
318: my $deeplink = $env{'form.firsturl'};
319: if ($env{'user.keyedlinkuri'}) {
320: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'});
321: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) {
322: push(@keyeduris,$deeplink);
323: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))});
324: }
325: } else {
326: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink});
327: }
328: }
1.177 raeburn 329: }
1.200 ! raeburn 330: if ($env{'form.ltoken'}) {
! 331: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'});
! 332: }
1.169 raeburn 333: $r->print(
1.160 kruse 334: $start_page
335: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
336: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
337: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
338: .$end_page
339: );
1.169 raeburn 340: return OK;
1.160 kruse 341: }
342:
343: # ---------------------------------------------------- No valid token, continue
344:
345: # ---------------------------- Not possible to really login to domain "public"
346: if ($env{'form.domain'} eq 'public') {
347: $env{'form.domain'}='';
348: $env{'form.username'}='';
349: }
350:
351: # ------ Is this page requested because /adm/migrateuser detected an IP change?
352: my %sessiondata;
353: if ($env{'form.iptoken'}) {
354: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
1.162 raeburn 355: unless ($sessiondata{'sessionserver'}) {
356: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
357: delete($env{'form.iptoken'});
358: }
1.160 kruse 359: }
360: # ----------------------------------------------------------- Process Interface
361: $env{'form.interface'}=~s/\W//g;
362:
363: (undef,undef,undef,undef,undef,undef,my $clientmobile) =
1.192 raeburn 364: &Apache::loncommon::decode_user_agent($r);
1.160 kruse 365:
366: my $iconpath=
367: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
368:
369: my $domain = &Apache::lonnet::default_login_domain();
1.161 raeburn 370: my $defdom = $domain;
1.160 kruse 371: if ($lonhost ne '') {
372: unless ($sessiondata{'sessionserver'}) {
1.193 raeburn 373: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie);
1.160 kruse 374: if ($redirect) {
375: $r->print($redirect);
376: return OK;
377: }
378: }
379: }
380:
381: if (($sessiondata{'domain'}) &&
1.175 raeburn 382: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) {
1.160 kruse 383: $domain=$sessiondata{'domain'};
384: } elsif (($env{'form.domain'}) &&
385: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
386: $domain=$env{'form.domain'};
387: }
388:
389: my $role = $r->dir_config('lonRole');
390: my $loadlim = $r->dir_config('lonLoadLim');
391: my $uloadlim= $r->dir_config('lonUserLoadLim');
392: my $servadm = $r->dir_config('lonAdmEMail');
393: my $tabdir = $r->dir_config('lonTabDir');
394: my $include = $r->dir_config('lonIncludes');
395: my $expire = $r->dir_config('lonExpire');
396: my $version = $r->dir_config('lonVersion');
397: my $host_name = &Apache::lonnet::hostname($lonhost);
398:
399: # --------------------------------------------- Default values for login fields
400:
401: my ($authusername,$authdomain);
402: if ($sessiondata{'username'}) {
403: $authusername=$sessiondata{'username'};
404: } else {
405: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
406: $authusername=($env{'form.username'}?$env{'form.username'}:'');
407: }
408: if ($sessiondata{'domain'}) {
409: $authdomain=$sessiondata{'domain'};
410: } else {
411: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
412: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
413: }
414:
415: # ---------------------------------------------------------- Determine own load
416: my $loadavg;
417: {
418: my $loadfile=Apache::File->new('/proc/loadavg');
419: $loadavg=<$loadfile>;
420: }
421: $loadavg =~ s/\s.*//g;
422:
423: my ($loadpercent,$userloadpercent);
424: if ($loadlim) {
425: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
426: }
427: if ($uloadlim) {
428: $userloadpercent=&Apache::lonnet::userload();
429: }
430:
431: my $firsturl=
432: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
433:
434: # ----------------------------------------------------------- Get announcements
435: my $announcements=&Apache::lonnet::getannounce();
436: # -------------------------------------------------------- Set login parameters
437:
438: my @hexstr=('0','1','2','3','4','5','6','7',
439: '8','9','a','b','c','d','e','f');
440: my $lkey='';
441: for (0..7) {
442: $lkey.=$hexstr[rand(15)];
443: }
444:
445: my $ukey='';
446: for (0..7) {
447: $ukey.=$hexstr[rand(15)];
448: }
449:
450: my $lextkey=hex($lkey);
451: if ($lextkey>2147483647) { $lextkey-=4294967296; }
452:
453: my $uextkey=hex($ukey);
454: if ($uextkey>2147483647) { $uextkey-=4294967296; }
455:
456: # -------------------------------------------------------- Store away log token
1.196 raeburn 457: my ($tokenextras,$tokentype,$linkprot_for_login);
1.199 raeburn 458: my @names = ('role','symb','iptoken','ltoken','linkprotuser','linkprot','linkkey');
1.192 raeburn 459: foreach my $name (@names) {
460: if ($env{'form.'.$name} ne '') {
461: if ($name eq 'ltoken') {
1.193 raeburn 462: my %info = &Apache::lonnet::tmpget($env{'form.'.$name});
1.192 raeburn 463: if ($info{'linkprot'}) {
1.196 raeburn 464: $linkprot_for_login = $info{'linkprot'};
1.192 raeburn 465: $tokenextras .= '&linkprot='.&escape($info{'linkprot'});
1.199 raeburn 466: if ($info{'linkprotuser'}) {
467: $tokenextras .= '&linkprotuser='.&escape($info{'linkprotuser'});
468: }
1.192 raeburn 469: $tokentype = 'link';
470: last;
471: }
472: } else {
473: $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name});
1.193 raeburn 474: if (($name eq 'linkkey') || ($name eq 'linkprot')) {
1.198 raeburn 475: if ((($env{'form.retry'}) || ($env{'form.sso'})) &&
476: (!$env{'form.ltoken'}) && ($name eq 'linkprot')) {
1.196 raeburn 477: $linkprot_for_login = $env{'form.linkprot'};
478: }
1.192 raeburn 479: $tokentype = 'link';
480: }
481: }
1.160 kruse 482: }
483: }
1.192 raeburn 484: if ($tokentype) {
485: $tokenextras .= ":$tokentype";
1.177 raeburn 486: }
1.160 kruse 487: my $logtoken=Apache::lonnet::reply(
1.193 raeburn 488: 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras,
1.160 kruse 489: $lonhost);
490:
491: # -- If we cannot talk to ourselves, or hostID does not map to a hostname
492: # we are in serious trouble
493:
494: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
495: if ($logtoken eq 'no_such_host') {
496: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
497: }
1.191 raeburn 498: if ($env{'form.ltoken'}) {
499: &Apache::lonnet::tmpdel($env{'form.ltoken'});
500: delete($env{'form.ltoken'});
501: }
1.160 kruse 502: my $spares='';
1.180 raeburn 503: my (@sparehosts,%spareservers);
504: my $sparesref = &Apache::lonnet::this_host_spares($defdom);
505: if (ref($sparesref) eq 'HASH') {
506: foreach my $key (keys(%{$sparesref})) {
507: if (ref($sparesref->{$key}) eq 'ARRAY') {
508: my @sorted = sort { &Apache::lonnet::hostname($a) cmp
509: &Apache::lonnet::hostname($b);
510: } @{$sparesref->{$key}};
511: if (@sorted) {
512: if ($key eq 'primary') {
513: unshift(@sparehosts,@sorted);
514: } elsif ($key eq 'default') {
515: push(@sparehosts,@sorted);
516: }
517: }
518: }
519: }
520: }
521: foreach my $hostid (@sparehosts) {
1.160 kruse 522: next if ($hostid eq $lonhost);
523: my $hostname = &Apache::lonnet::hostname($hostid);
1.180 raeburn 524: next if (($hostname eq '') || ($spareservers{$hostname}));
525: $spareservers{$hostname} = 1;
526: my $protocol = $Apache::lonnet::protocol{$hostid};
527: $protocol = 'http' if ($protocol ne 'https');
528: $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'.
1.160 kruse 529: $hostname.
530: '/adm/login?domain='.$authdomain.'">'.
531: $hostname.'</a>'.
1.180 raeburn 532: ' '.&mt('(preferred)').'</span>'.$/;
1.160 kruse 533: }
534: if ($spares) {
535: $spares.= '<br />';
536: }
537: my %all_hostnames = &Apache::lonnet::all_hostnames();
538: foreach my $hostid (sort
539: {
540: &Apache::lonnet::hostname($a) cmp
541: &Apache::lonnet::hostname($b);
542: }
543: keys(%all_hostnames)) {
1.180 raeburn 544: next if ($hostid eq $lonhost);
1.160 kruse 545: my $hostname = &Apache::lonnet::hostname($hostid);
1.180 raeburn 546: next if (($hostname eq '') || ($spareservers{$hostname}));
1.181 raeburn 547: $spareservers{$hostname} = 1;
1.180 raeburn 548: my $protocol = $Apache::lonnet::protocol{$hostid};
549: $protocol = 'http' if ($protocol ne 'https');
550: $spares.='<br /><a href="'.$protocol.'://'.
1.160 kruse 551: $hostname.
552: '/adm/login?domain='.$authdomain.'">'.
553: $hostname.'</a>';
554: }
555: $r->print(
1.180 raeburn 556: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
557: .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">'
558: .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>'
1.160 kruse 559: .&mt('The LearningOnline Network with CAPA')
560: .'</title></head>'
561: .'<body bgcolor="#FFFFFF">'
562: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
1.180 raeburn 563: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />'
1.160 kruse 564: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
565: if ($spares) {
566: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
567: .'</p>'
568: .$spares);
569: }
570: $r->print('</body>'
571: .'</html>'
572: );
573: return OK;
574: }
575:
576: # ----------------------------------------------- Apparently we are in business
577: $servadm=~s/\,/\<br \/\>/g;
578:
579: # ----------------------------------------------------------- Front page design
580: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
581: my $font=&Apache::loncommon::designparm('login.font',$domain);
582: my $link=&Apache::loncommon::designparm('login.link',$domain);
583: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
584: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
585: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
586: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
587: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
588: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
589: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
590: my $img=&Apache::loncommon::designparm('login.img',$domain);
591: my $domainlogo=&Apache::loncommon::domainlogo($domain);
592: my $showbanner = 1;
593: my $showmainlogo = 1;
594: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
595: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
596: }
597: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
598: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
599: }
600: my $showadminmail;
601: my @possdoms = &Apache::lonnet::current_machine_domains();
602: if (grep(/^\Q$domain\E$/,@possdoms)) {
603: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
604: }
605: my $showcoursecat =
606: &Apache::loncommon::designparm('login.coursecatalog',$domain);
607: my $shownewuserlink =
608: &Apache::loncommon::designparm('login.newuser',$domain);
609: my $showhelpdesk =
610: &Apache::loncommon::designparm('login.helpdesk',$domain);
611: my $now=time;
612: my $js = (<<ENDSCRIPT);
613:
614: <script type="text/javascript" language="JavaScript">
615: // <![CDATA[
616: function send()
617: {
618: this.document.server.elements.uname.value
619: =this.document.client.elements.uname.value;
620:
621: this.document.server.elements.udom.value
622: =this.document.client.elements.udom.value;
623:
624: uextkey=this.document.client.elements.uextkey.value;
625: lextkey=this.document.client.elements.lextkey.value;
626: initkeys();
627:
628: if(this.document.server.action.substr(0,5) === 'http:'){
1.165 raeburn 629: this.document.server.elements.upass0.value
630: =getCrypted(this.document.client.elements.upass$now.value);
1.166 raeburn 631: } else {
632: this.document.server.elements.upass0.value
633: =this.document.client.elements.upass$now.value;
1.167 raeburn 634: }
1.160 kruse 635:
636: this.document.client.elements.uname.value='';
637: this.document.client.elements.upass$now.value='';
638:
639: this.document.server.submit();
640: return false;
641: }
642:
643: function enableInput() {
644: this.document.client.elements.upass$now.removeAttribute("readOnly");
645: this.document.client.elements.uname.removeAttribute("readOnly");
646: this.document.client.elements.udom.removeAttribute("readOnly");
647: return;
648: }
649:
650: // ]]>
651: </script>
652:
653: ENDSCRIPT
654:
1.184 raeburn 655: my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing,
656: $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip);
657: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
658: @hosts = &Apache::lonnet::current_machine_ids();
659: $lonhost_in_use = $lonhost;
660: if (@hosts > 1) {
661: foreach my $hostid (@hosts) {
662: if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
663: $lonhost_in_use = $hostid;
664: last;
665: }
666: }
667: }
668: $saml_prefix = $defdom.'.login.saml_';
669: if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) {
670: $saml_landing = 1;
671: $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use};
672: $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use};
673: $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use};
674: $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use};
675: $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use};
676: $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use};
677: }
678: if ($saml_landing) {
679: if ($samlssotext eq '') {
680: $samlssotext = 'SSO Login';
681: }
682: if ($samlnonsso eq '') {
683: $samlnonsso = 'Non-SSO Login';
684: }
685: $js .= <<"ENDSAMLJS";
686:
687: <script type="text/javascript">
688: // <![CDATA[
689: function toggleLClogin() {
690: if (document.getElementById('LC_standard_login')) {
691: if (document.getElementById('LC_standard_login').style.display == 'none') {
692: document.getElementById('LC_standard_login').style.display = 'inline-block';
693: if (document.getElementById('LC_login_text')) {
694: document.getElementById('LC_login_text').innerHTML = '$samlnonsso';
695: }
1.195 raeburn 696: if ( document.client.uname ) { document.client.uname.focus(); }
1.184 raeburn 697: if (document.getElementById('LC_SSO_login')) {
698: document.getElementById('LC_SSO_login').style.display = 'none';
699: }
700: } else {
701: document.getElementById('LC_standard_login').style.display = 'none';
702: if (document.getElementById('LC_login_text')) {
703: document.getElementById('LC_login_text').innerHTML = '$samlssotext';
704: }
705: if (document.getElementById('LC_SSO_login')) {
706: document.getElementById('LC_SSO_login').style.display = 'inline-block';
707: }
708: }
709: }
710: return;
711: }
712:
713: // ]]>
714: </script>
715:
716: ENDSAMLJS
717: }
718:
1.160 kruse 719: # --------------------------------------------------- Print login screen header
720:
721: my %add_entries = (
722: bgcolor => "$mainbg",
723: text => "$font",
724: link => "$link",
725: vlink => "$vlink",
726: alink => "$alink",
727: onload => 'javascript:enableInput();',);
728:
1.186 raeburn 729: my ($headextra,$headextra_exempt);
1.164 raeburn 730: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
731: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
1.161 raeburn 732: if ($headextra) {
733: my $omitextra;
734: if ($headextra_exempt ne '') {
735: my @exempt = split(',',$headextra_exempt);
1.182 raeburn 736: my $ip = &Apache::lonnet::get_requestor_ip();
1.161 raeburn 737: if (grep(/^\Q$ip\E$/,@exempt)) {
738: $omitextra = 1;
739: }
740: }
741: unless ($omitextra) {
742: my $confname = $defdom.'-domainconfig';
1.163 raeburn 743: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
1.161 raeburn 744: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
745: unless ($extra eq '-1') {
746: $js .= "\n".$extra."\n";
747: }
748: }
749: }
750: }
751:
1.160 kruse 752: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
753: { 'redirect' => [$expire,'/adm/roles'],
754: 'add_entries' => \%add_entries,
755: 'only_body' => 1,}));
756:
757: # ----------------------------------------------------------------------- Texts
758:
759: my %lt=&Apache::lonlocal::texthash(
760: 'un' => 'Username',
761: 'pw' => 'Password',
762: 'dom' => 'Domain',
763: 'perc' => 'percent',
764: 'load' => 'Server Load',
765: 'userload' => 'User Load',
766: 'catalog' => 'Course/Community Catalog',
767: 'log' => 'Log in',
768: 'help' => 'Log-in Help',
769: 'serv' => 'Server',
770: 'servadm' => 'Server Administration',
771: 'helpdesk' => 'Contact Helpdesk',
772: 'forgotpw' => 'Forgot password?',
773: 'newuser' => 'New User?',
1.184 raeburn 774: 'change' => 'Change?',
1.160 kruse 775: );
776: # -------------------------------------------------- Change password field name
777:
778: my $forgotpw = &forgotpwdisplay(%lt);
779: $forgotpw .= '<br />' if $forgotpw;
780: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
781: if ($loginhelp) {
782: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
783: }
784:
785: # ---------------------------------------------------- Serve out DES JavaScript
786: {
787: my $jsh=Apache::File->new($include."/londes.js");
788: $r->print(<$jsh>);
789: }
790: # ---------------------------------------------------------- Serve rest of page
791:
792: $r->print(
793: '<div class="LC_Box"'
794: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
795: );
796:
797: $r->print(<<ENDSERVERFORM);
798: <form name="server" action="/adm/authenticate" method="post" target="_top">
799: <input type="hidden" name="logtoken" value="$logtoken" />
800: <input type="hidden" name="serverid" value="$lonhost" />
801: <input type="hidden" name="uname" value="" />
802: <input type="hidden" name="upass0" value="" />
803: <input type="hidden" name="udom" value="" />
804: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
805: <input type="hidden" name="localres" value="$env{'form.localres'}" />
806: </form>
807: ENDSERVERFORM
808: my $coursecatalog;
809: if (($showcoursecat eq '') || ($showcoursecat)) {
810: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
811: }
812: my $newuserlink;
813: if ($shownewuserlink) {
814: $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
815: }
816: my $logintitle =
817: '<h2 class="LC_hcell"'
818: .' style="background:'.$loginbox_header_bgcol.';'
819: .' color:'.$loginbox_header_textcol.'">'
820: .$lt{'log'}
821: .'</h2>';
822:
823: my $noscript_warning='<noscript><span class="LC_warning"><b>'
824: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
825: .'</b></span></noscript>';
826: my $helpdeskscript;
827: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
828: $authdomain,\$helpdeskscript,
829: $showhelpdesk,\@possdoms);
830:
831: my $mobileargs;
832: if ($clientmobile) {
833: $mobileargs = 'autocapitalize="off" autocorrect="off"';
834: }
835: my $loginform=(<<LFORM);
1.184 raeburn 836: <form name="client" action="" onsubmit="return(send())" id="lclogin">
1.160 kruse 837: <input type="hidden" name="lextkey" value="$lextkey" />
838: <input type="hidden" name="uextkey" value="$uextkey" />
839: <b><label for="uname">$lt{'un'}</label>:</b><br />
840: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
841: <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
842: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
843: <b><label for="udom">$lt{'dom'}</label>:</b><br />
844: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
845: <input type="submit" value="$lt{'log'}" />
846: </form>
847: LFORM
848:
849: if ($showbanner) {
1.194 raeburn 850: my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain);
851: if ($alttext eq '') {
852: $alttext = 'The Learning Online Network with CAPA';
853: }
1.160 kruse 854: $r->print(<<HEADER);
855: <!-- The LON-CAPA Header -->
856: <div style="background:$pgbg;margin:0;width:100%;">
1.194 raeburn 857: <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" />
1.160 kruse 858: </div>
859: HEADER
860: }
1.184 raeburn 861:
862: my $stdauthformstyle = 'inline-block';
863: my $ssoauthstyle = 'none';
864: my $logintype;
865: $r->print('<div style="float:left;margin-top:0;">');
866: if ($saml_landing) {
867: $ssoauthstyle = 'inline-block';
868: $stdauthformstyle = 'none';
869: $logintype = $samlssotext;
870: my $ssologin = '/adm/sso';
871: if ($samlssourl ne '') {
872: $ssologin = $samlssourl;
873: }
1.192 raeburn 874: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
875: my $querystring;
876: if ($env{'form.firsturl'} ne '') {
877: $querystring = 'origurl=';
878: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) {
879: $querystring .= &uri_escape_utf8($env{'form.firsturl'});
880: } else {
881: $querystring .= &uri_escape($env{'form.firsturl'});
882: }
883: $querystring = &HTML::Entities::encode($querystring,"'");
884: }
885: if ($env{'form.ltoken'} ne '') {
886: $querystring .= (($querystring eq '')?'':'&') . 'ltoken='.
887: &HTML::Entities::encode(&uri_escape($env{'form.ltoken'}));
888: } elsif ($env{'form.linkkey'}) {
889: $querystring .= (($querystring eq '')?'':'&') . 'linkkey='.
890: &HTML::Entities::encode(&uri_escape($env{'form.linkkey'}));
891: }
892: if ($querystring ne '') {
893: $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring;
1.188 raeburn 894: }
1.192 raeburn 895: } elsif ($logtoken ne '') {
896: $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken;
1.191 raeburn 897: }
1.184 raeburn 898: my $ssohref;
899: if ($samlssoimg ne '') {
1.194 raeburn 900: $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'.
901: '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>';
1.184 raeburn 902: } else {
903: $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>';
904: }
905: if (($env{'form.saml'} eq 'no') ||
906: (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) {
907: $ssoauthstyle = 'none';
908: $stdauthformstyle = 'inline-block';
909: $logintype = $samlnonsso;
910: }
911: $r->print(<<ENDSAML);
912: <p>
913: Log-in type:
914: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br />
915: <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span>
916: </p>
917: <div style="display:$ssoauthstyle" id="LC_SSO_login">
918: <div class="LC_Box" style="padding-top: 10px;">
919: $ssohref
920: $noscript_warning
921: </div>
922: <div class="LC_Box" style="padding-top: 10px;">
923: $loginhelp
924: $contactblock
925: $coursecatalog
926: </div>
927: </div>
928: ENDSAML
1.191 raeburn 929: } else {
930: if ($env{'form.ltoken'}) {
931: &Apache::lonnet::tmpdel($env{'form.ltoken'});
932: delete($env{'form.ltoken'});
933: }
1.184 raeburn 934: }
1.196 raeburn 935: my $in_frame_js;
936: if ($linkprot_for_login) {
937: my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2);
938: if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) {
939: my $set_target;
1.198 raeburn 940: if (($env{'form.retry'}) || ($env{'form.sso'})) {
1.196 raeburn 941: if ($linkproturi eq $env{'form.firsturl'}) {
942: $set_target = " document.server.target = '_self';";
943: }
944: } else {
945: $set_target = <<ENDTARG;
946: var linkproturi = '$linkproturi';
947: var path = document.location.pathname.replace( new RegExp('^/adm/launch'),'');
948: if (linkproturi == path) {
949: document.server.target = '_self';
950: }
951: ENDTARG
952: }
953: $in_frame_js = <<ENDJS;
954: <script type="text/javascript">
955: // <![CDATA[
956: if ((window.self !== window.top) && (document.server.target != '_self')) {
957: $set_target
958: }
959: // ]]>
960: </script>
961: ENDJS
962: }
963: }
1.184 raeburn 964:
965: $r->print(<<ENDLOGIN);
966: <div style="display:$stdauthformstyle;" id="LC_standard_login">
1.160 kruse 967: <div class="LC_Box" style="background:$loginbox_bg;">
968: $logintitle
969: $loginform
970: $noscript_warning
971: </div>
972:
973: <div class="LC_Box" style="padding-top: 10px;">
974: $loginhelp
975: $forgotpw
976: $contactblock
977: $newuserlink
978: $coursecatalog
979: </div>
980: </div>
981:
1.184 raeburn 982: ENDLOGIN
983: $r->print('</div><div>'."\n");
1.160 kruse 984: if ($showmainlogo) {
1.194 raeburn 985: my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain);
986: $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n");
1.160 kruse 987: }
988: $r->print(<<ENDTOP);
989: $announcements
990: </div>
991: <hr style="clear:both;" />
992: ENDTOP
993: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
994: $domainrow = <<"END";
995: <tr>
996: <td align="left" valign="top">
997: <small><b>$lt{'dom'}: </b></small>
998: </td>
999: <td align="left" valign="top">
1000: <small><tt> $domain</tt></small>
1001: </td>
1002: </tr>
1003: END
1004: $serverrow = <<"END";
1005: <tr>
1006: <td align="left" valign="top">
1007: <small><b>$lt{'serv'}: </b></small>
1008: </td>
1009: <td align="left" valign="top">
1010: <small><tt> $lonhost ($role)</tt></small>
1011: </td>
1012: </tr>
1013: END
1014: if ($loadlim) {
1015: $loadrow = <<"END";
1016: <tr>
1017: <td align="left" valign="top">
1018: <small><b>$lt{'load'}: </b></small>
1019: </td>
1020: <td align="left" valign="top">
1021: <small><tt> $loadpercent $lt{'perc'}</tt></small>
1022: </td>
1023: </tr>
1024: END
1025: }
1026: if ($uloadlim) {
1027: $userloadrow = <<"END";
1028: <tr>
1029: <td align="left" valign="top">
1030: <small><b>$lt{'userload'}: </b></small>
1031: </td>
1032: <td align="left" valign="top">
1033: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
1034: </td>
1035: </tr>
1036: END
1037: }
1038: if (($version ne '') && ($version ne '<!-- VERSION -->')) {
1039: $versionrow = <<"END";
1040: <tr>
1041: <td colspan="2" align="left">
1042: <small>$version</small>
1043: </td>
1044: </tr>
1045: END
1046: }
1047:
1048: $r->print(<<ENDDOCUMENT);
1049: <div style="float: left;">
1050: <table border="0" cellspacing="0" cellpadding="0">
1051: $domainrow
1052: $serverrow
1053: $loadrow
1054: $userloadrow
1055: $versionrow
1056: </table>
1057: </div>
1058: <div style="float: right;">
1059: $domainlogo
1060: </div>
1061: <br style="clear:both;" />
1062: </div>
1063:
1.197 raeburn 1064: $in_frame_js
1.160 kruse 1065: <script type="text/javascript">
1066: // <![CDATA[
1067: // the if prevents the script error if the browser can not handle this
1068: if ( document.client.uname ) { document.client.uname.focus(); }
1069: // ]]>
1070: </script>
1071: $helpdeskscript
1072:
1073: ENDDOCUMENT
1074: my %endargs = ( 'noredirectlink' => 1, );
1075: $r->print(&Apache::loncommon::end_page(\%endargs));
1076: return OK;
1077: }
1078:
1079: sub check_loginvia {
1.193 raeburn 1080: my ($domain,$lonhost,$lonidsdir,$balcookie) = @_;
1.176 raeburn 1081: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') {
1.160 kruse 1082: return;
1083: }
1084: my %domconfhash = &Apache::loncommon::get_domainconf($domain);
1085: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
1086: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
1087: my $output;
1088: if ($loginvia ne '') {
1089: my $noredirect;
1.182 raeburn 1090: my $ip = &Apache::lonnet::get_requestor_ip();
1.160 kruse 1091: if ($ip eq '127.0.0.1') {
1092: $noredirect = 1;
1093: } else {
1094: if ($loginvia_exempt ne '') {
1095: my @exempt = split(',',$loginvia_exempt);
1096: if (grep(/^\Q$ip\E$/,@exempt)) {
1097: $noredirect = 1;
1098: }
1099: }
1100: }
1101: unless ($noredirect) {
1102: my ($newhost,$path);
1103: if ($loginvia =~ /:/) {
1104: ($newhost,$path) = split(':',$loginvia);
1105: } else {
1106: $newhost = $loginvia;
1107: }
1108: if ($newhost ne $lonhost) {
1109: if (&Apache::lonnet::hostname($newhost) ne '') {
1.176 raeburn 1110: if ($balcookie) {
1111: my ($balancer,$cookie) = split(/:/,$balcookie);
1112: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) {
1113: my ($udom,$uname,$cookieid) = ($1,$2,$3);
1114: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') {
1115: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) {
1116: while (my $filename=readdir($dh)) {
1117: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) {
1118: my $handle = $1;
1119: my %hash =
1120: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir,
1121: ['request.balancercookie',
1122: 'user.linkedenv']);
1123: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") {
1124: if (unlink("$lonidsdir/$filename")) {
1125: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
1126: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") &&
1127: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) {
1128: unlink("$lonidsdir/$hash{'user.linkedenv'}.id");
1129: }
1130: }
1131: }
1132: last;
1133: }
1134: }
1135: closedir($dh);
1136: }
1137: }
1138: }
1139: }
1.193 raeburn 1140: $output = &redirect_page($newhost,$path);
1.160 kruse 1141: }
1142: }
1143: }
1144: }
1145: return $output;
1146: }
1147:
1148: sub redirect_page {
1.193 raeburn 1149: my ($desthost,$path) = @_;
1.178 raeburn 1150: my $hostname = &Apache::lonnet::hostname($desthost);
1.160 kruse 1151: my $protocol = $Apache::lonnet::protocol{$desthost};
1152: $protocol = 'http' if ($protocol ne 'https');
1153: unless ($path =~ m{^/}) {
1154: $path = '/'.$path;
1155: }
1.178 raeburn 1156: my $url = $protocol.'://'.$hostname.$path;
1.200 ! raeburn 1157: my $args = {};
1.199 raeburn 1158: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
1159: $url = $protocol.'://'.$hostname.$env{'form.firsturl'};
1160: if (($env{'form.ltoken'}) || ($env{'form.linkprot'} ne '') ||
1161: ($env{'form.linkkey'} ne '')) {
1162: my %link_info;
1163: if ($env{'form.ltoken'}) {
1164: %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'});
1165: &Apache::lonnet::tmpdel($env{'form.ltoken'});
1.200 ! raeburn 1166: $args->{'only_body'} = 1;
1.199 raeburn 1167: } elsif ($env{'form.linkprot'}) {
1168: $link_info{'linkprot'} = $env{'form.linkprot'};
1169: if ($env{'form.linkprotuser'}) {
1170: $link_info{'linkprotuser'} = $env{'form.linkprotuser'};
1171: }
1.200 ! raeburn 1172: $args->{'only_body'} = 1;
1.199 raeburn 1173: } elsif ($env{'form.linkkey'} ne '') {
1174: $link_info{'linkkey'} = $env{'form.linkkey'};
1175: }
1176: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link');
1177: unless (($token eq 'con_lost') || ($token eq 'refused') ||
1178: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
1179: $url .= '?ltoken='.$token;
1180: }
1181: }
1182: } else {
1.188 raeburn 1183: my $querystring;
1.199 raeburn 1184: if ($env{'form.firsturl'} ne '') {
1185: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) {
1186: $querystring = &uri_escape_utf8($env{'form.firsturl'});
1187: } else {
1188: $querystring = &uri_escape($env{'form.firsturl'});
1189: }
1190: $querystring = &HTML::Entities::encode($querystring,"'");
1191: $querystring = '?firsturl='.$querystring;
1.188 raeburn 1192: }
1.193 raeburn 1193: if ($env{'form.ltoken'}) {
1.199 raeburn 1194: my %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'});
1195: &Apache::lonnet::tmpdel($env{'form.ltoken'});
1196: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link');
1197: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
1198: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
1199: unless (($path eq '/adm/roles') || ($path eq '/adm/login')) {
1200: $url = $protocol.'://'.$hostname.'/adm/roles';
1201: }
1202: $querystring .= (($querystring =~/^\?/)?'&':'?') . 'ttoken='.$token;
1203: }
1.177 raeburn 1204: }
1.199 raeburn 1205: $url .= $querystring;
1.177 raeburn 1206: }
1.200 ! raeburn 1207: $args->{'redirect'} = [0,$url];
! 1208: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,$args);
1.160 kruse 1209: my $end_page = &Apache::loncommon::end_page();
1210: return $start_page.$end_page;
1211: }
1212:
1213: sub contactdisplay {
1214: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
1215: $possdoms) = @_;
1216: my $contactblock;
1217: my $origmail;
1218: if (ref($possdoms) eq 'ARRAY') {
1219: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
1220: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
1221: }
1222: }
1223: my $requestmail =
1224: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
1225: $authdomain,$origmail);
1226: unless ($showhelpdesk eq '0') {
1227: if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
1228: $showhelpdesk = 1;
1229: } else {
1230: $showhelpdesk = 0;
1231: }
1232: }
1233: if ($servadm && $showadminmail) {
1234: $contactblock .= $$lt{'servadm'}.':<br />'.
1235: '<tt>'.$servadm.'</tt><br />';
1236: }
1237: if ($showhelpdesk) {
1238: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
1239: my $thisurl = &escape('/adm/login');
1240: $$helpdeskscript = <<"ENDSCRIPT";
1241: <script type="text/javascript">
1242: // <![CDATA[
1243: function helpdesk() {
1244: var possdom = document.client.udom.value;
1245: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),'');
1246: if (codedom == '') {
1247: codedom = "$authdomain";
1248: }
1249: var querystr = "origurl=$thisurl&codedom="+codedom;
1250: document.location.href = "/adm/helpdesk?"+querystr;
1251: return;
1252: }
1253: // ]]>
1254: </script>
1255: ENDSCRIPT
1256: }
1257: return $contactblock;
1258: }
1259:
1260: sub forgotpwdisplay {
1261: my (%lt) = @_;
1262: my $prompt_for_resetpw = 1;
1263: if ($prompt_for_resetpw) {
1264: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
1265: }
1266: return;
1267: }
1268:
1269: sub coursecatalog_link {
1270: my ($linkname) = @_;
1271: return <<"END";
1272: <a href="/adm/coursecatalog">$linkname</a>
1273: END
1274: }
1275:
1276: sub newuser_link {
1277: my ($linkname) = @_;
1278: return '<a href="/adm/createaccount">'.$linkname.'</a>';
1279: }
1280:
1.192 raeburn 1281: sub decode_token {
1282: my ($info) = @_;
1283: my ($firsturl,@rest)=split(/\&/,$info);
1284: my %form;
1285: if ($firsturl ne '') {
1286: $form{'firsturl'} = &unescape($firsturl);
1287: }
1288: foreach my $item (@rest) {
1289: my ($key,$value) = split(/=/,$item);
1290: $form{$key} = &unescape($value);
1291: }
1292: return %form;
1293: }
1294:
1.160 kruse 1295: 1;
1296: __END__
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