Annotation of loncom/auth/lonlogin.pm, revision 1.199
1.160 kruse 1: # The LearningOnline Network
2: # Login Screen
3: #
1.199 ! raeburn 4: # $Id: lonlogin.pm,v 1.198 2022/06/01 12:12:32 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: }
1.177 raeburn 265: my $delete = &Apache::lonnet::tmpdel($env{'form.ltoken'});
1.193 raeburn 266: } else {
267: $linkprot = $env{'form.linkprot'};
1.199 ! raeburn 268: $linkprotuser = $env{'form.linkprotuser'};
1.177 raeburn 269: }
270: if ($linkprot) {
271: my ($linkprotector,$deeplink) = split(/:/,$linkprot,2);
1.199 ! raeburn 272: if (($deeplink =~ m{^/tiny/$match_domain/\w+$}) &&
! 273: ($linkprotuser ne '') && ($linkprotuser ne $env{'user.name'}.':'.$env{'user.domain'})) {
! 274: my $ip = &Apache::lonnet::get_requestor_ip();
! 275: my %linkprotinfo = (
! 276: origurl => $deeplink,
! 277: linkprot => $linkprot,
! 278: linkprotuser => $linkprotuser,
! 279: );
! 280: &Apache::migrateuser::logout($r,$ip,$handle,undef,undef,\%linkprotinfo);
! 281: return OK;
! 282: }
1.177 raeburn 283: if ($env{'user.linkprotector'}) {
284: my @protectors = split(/,/,$env{'user.linkprotector'});
285: unless (grep(/^\Q$linkprotector\E$/,@protectors)) {
286: push(@protectors,$linkprotector);
287: @protectors = sort { $a <=> $b } @protectors;
288: &Apache::lonnet::appenv({'user.linkprotector' => join(',',@protectors)});
289: }
290: } else {
291: &Apache::lonnet::appenv({'user.linkprotector' => $linkprotector });
292: }
293: if ($env{'user.linkproturi'}) {
294: my @proturis = split(/,/,$env{'user.linkproturi'});
1.179 raeburn 295: unless (grep(/^\Q$deeplink\E$/,@proturis)) {
1.177 raeburn 296: push(@proturis,$deeplink);
297: @proturis = sort @proturis;
298: &Apache::lonnet::appenv({'user.linkproturi' => join(',',@proturis)});
299: }
300: } else {
301: &Apache::lonnet::appenv({'user.linkproturi' => $deeplink});
302: }
303: }
1.193 raeburn 304: } elsif ($env{'form.linkkey'} ne '') {
1.179 raeburn 305: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
1.193 raeburn 306: my $linkkey = $env{'form.linkkey'};
1.179 raeburn 307: if ($env{'user.deeplinkkey'}) {
308: my @linkkeys = split(/,/,$env{'user.deeplinkkey'});
309: unless (grep(/^\Q$linkkey\E$/,@linkkeys)) {
310: push(@linkkeys,$linkkey);
1.193 raeburn 311: &Apache::lonnet::appenv({'user.deeplinkkey' => join(',',sort(@linkkeys))});
1.179 raeburn 312: }
313: } else {
314: &Apache::lonnet::appenv({'user.deeplinkkey' => $linkkey});
315: }
316: my $deeplink = $env{'form.firsturl'};
317: if ($env{'user.keyedlinkuri'}) {
318: my @keyeduris = split(/,/,$env{'user.keyedlinkuri'});
319: unless (grep(/^\Q$deeplink\E$/,@keyeduris)) {
320: push(@keyeduris,$deeplink);
321: &Apache::lonnet::appenv({'user.keyedlinkuri' => join(',',sort(@keyeduris))});
322: }
323: } else {
324: &Apache::lonnet::appenv({'user.keyedlinkuri' => $deeplink});
325: }
326: }
1.177 raeburn 327: }
1.169 raeburn 328: $r->print(
1.160 kruse 329: $start_page
330: .'<p class="LC_warning">'.&mt('You are already logged in!').'</p>'
331: .'<p>'.&mt('Please either [_1]continue the current session[_2] or [_3]log out[_4].',
332: '<a href="'.$dest.'">','</a>','<a href="/adm/logout">','</a>').'</p>'
333: .$end_page
334: );
1.169 raeburn 335: return OK;
1.160 kruse 336: }
337:
338: # ---------------------------------------------------- No valid token, continue
339:
340: # ---------------------------- Not possible to really login to domain "public"
341: if ($env{'form.domain'} eq 'public') {
342: $env{'form.domain'}='';
343: $env{'form.username'}='';
344: }
345:
346: # ------ Is this page requested because /adm/migrateuser detected an IP change?
347: my %sessiondata;
348: if ($env{'form.iptoken'}) {
349: %sessiondata = &Apache::lonnet::tmpget($env{'form.iptoken'});
1.162 raeburn 350: unless ($sessiondata{'sessionserver'}) {
351: my $delete = &Apache::lonnet::tmpdel($env{'form.iptoken'});
352: delete($env{'form.iptoken'});
353: }
1.160 kruse 354: }
355: # ----------------------------------------------------------- Process Interface
356: $env{'form.interface'}=~s/\W//g;
357:
358: (undef,undef,undef,undef,undef,undef,my $clientmobile) =
1.192 raeburn 359: &Apache::loncommon::decode_user_agent($r);
1.160 kruse 360:
361: my $iconpath=
362: &Apache::loncommon::lonhttpdurl($r->dir_config('lonIconsURL'));
363:
364: my $domain = &Apache::lonnet::default_login_domain();
1.161 raeburn 365: my $defdom = $domain;
1.160 kruse 366: if ($lonhost ne '') {
367: unless ($sessiondata{'sessionserver'}) {
1.193 raeburn 368: my $redirect = &check_loginvia($domain,$lonhost,$lonidsdir,$balcookie);
1.160 kruse 369: if ($redirect) {
370: $r->print($redirect);
371: return OK;
372: }
373: }
374: }
375:
376: if (($sessiondata{'domain'}) &&
1.175 raeburn 377: (&Apache::lonnet::domain($sessiondata{'domain'},'description'))) {
1.160 kruse 378: $domain=$sessiondata{'domain'};
379: } elsif (($env{'form.domain'}) &&
380: (&Apache::lonnet::domain($env{'form.domain'},'description'))) {
381: $domain=$env{'form.domain'};
382: }
383:
384: my $role = $r->dir_config('lonRole');
385: my $loadlim = $r->dir_config('lonLoadLim');
386: my $uloadlim= $r->dir_config('lonUserLoadLim');
387: my $servadm = $r->dir_config('lonAdmEMail');
388: my $tabdir = $r->dir_config('lonTabDir');
389: my $include = $r->dir_config('lonIncludes');
390: my $expire = $r->dir_config('lonExpire');
391: my $version = $r->dir_config('lonVersion');
392: my $host_name = &Apache::lonnet::hostname($lonhost);
393:
394: # --------------------------------------------- Default values for login fields
395:
396: my ($authusername,$authdomain);
397: if ($sessiondata{'username'}) {
398: $authusername=$sessiondata{'username'};
399: } else {
400: $env{'form.username'} = &Apache::loncommon::cleanup_html($env{'form.username'});
401: $authusername=($env{'form.username'}?$env{'form.username'}:'');
402: }
403: if ($sessiondata{'domain'}) {
404: $authdomain=$sessiondata{'domain'};
405: } else {
406: $env{'form.domain'} = &Apache::loncommon::cleanup_html($env{'form.domain'});
407: $authdomain=($env{'form.domain'}?$env{'form.domain'}:$domain);
408: }
409:
410: # ---------------------------------------------------------- Determine own load
411: my $loadavg;
412: {
413: my $loadfile=Apache::File->new('/proc/loadavg');
414: $loadavg=<$loadfile>;
415: }
416: $loadavg =~ s/\s.*//g;
417:
418: my ($loadpercent,$userloadpercent);
419: if ($loadlim) {
420: $loadpercent=sprintf("%.1f",100*$loadavg/$loadlim);
421: }
422: if ($uloadlim) {
423: $userloadpercent=&Apache::lonnet::userload();
424: }
425:
426: my $firsturl=
427: ($env{'request.firsturl'}?$env{'request.firsturl'}:$env{'form.firsturl'});
428:
429: # ----------------------------------------------------------- Get announcements
430: my $announcements=&Apache::lonnet::getannounce();
431: # -------------------------------------------------------- Set login parameters
432:
433: my @hexstr=('0','1','2','3','4','5','6','7',
434: '8','9','a','b','c','d','e','f');
435: my $lkey='';
436: for (0..7) {
437: $lkey.=$hexstr[rand(15)];
438: }
439:
440: my $ukey='';
441: for (0..7) {
442: $ukey.=$hexstr[rand(15)];
443: }
444:
445: my $lextkey=hex($lkey);
446: if ($lextkey>2147483647) { $lextkey-=4294967296; }
447:
448: my $uextkey=hex($ukey);
449: if ($uextkey>2147483647) { $uextkey-=4294967296; }
450:
451: # -------------------------------------------------------- Store away log token
1.196 raeburn 452: my ($tokenextras,$tokentype,$linkprot_for_login);
1.199 ! raeburn 453: my @names = ('role','symb','iptoken','ltoken','linkprotuser','linkprot','linkkey');
1.192 raeburn 454: foreach my $name (@names) {
455: if ($env{'form.'.$name} ne '') {
456: if ($name eq 'ltoken') {
1.193 raeburn 457: my %info = &Apache::lonnet::tmpget($env{'form.'.$name});
1.192 raeburn 458: if ($info{'linkprot'}) {
1.196 raeburn 459: $linkprot_for_login = $info{'linkprot'};
1.192 raeburn 460: $tokenextras .= '&linkprot='.&escape($info{'linkprot'});
1.199 ! raeburn 461: if ($info{'linkprotuser'}) {
! 462: $tokenextras .= '&linkprotuser='.&escape($info{'linkprotuser'});
! 463: }
1.192 raeburn 464: $tokentype = 'link';
465: last;
466: }
467: } else {
468: $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name});
1.193 raeburn 469: if (($name eq 'linkkey') || ($name eq 'linkprot')) {
1.198 raeburn 470: if ((($env{'form.retry'}) || ($env{'form.sso'})) &&
471: (!$env{'form.ltoken'}) && ($name eq 'linkprot')) {
1.196 raeburn 472: $linkprot_for_login = $env{'form.linkprot'};
473: }
1.192 raeburn 474: $tokentype = 'link';
475: }
476: }
1.160 kruse 477: }
478: }
1.192 raeburn 479: if ($tokentype) {
480: $tokenextras .= ":$tokentype";
1.177 raeburn 481: }
1.160 kruse 482: my $logtoken=Apache::lonnet::reply(
1.193 raeburn 483: 'tmpput:'.$ukey.$lkey.'&'.&escape($firsturl).$tokenextras,
1.160 kruse 484: $lonhost);
485:
486: # -- If we cannot talk to ourselves, or hostID does not map to a hostname
487: # we are in serious trouble
488:
489: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
490: if ($logtoken eq 'no_such_host') {
491: &Apache::lonnet::logthis('No valid logtoken for log-in page -- unable to determine hostname for hostID: '.$lonhost.'. Check entry in hosts.tab');
492: }
1.191 raeburn 493: if ($env{'form.ltoken'}) {
494: &Apache::lonnet::tmpdel($env{'form.ltoken'});
495: delete($env{'form.ltoken'});
496: }
1.160 kruse 497: my $spares='';
1.180 raeburn 498: my (@sparehosts,%spareservers);
499: my $sparesref = &Apache::lonnet::this_host_spares($defdom);
500: if (ref($sparesref) eq 'HASH') {
501: foreach my $key (keys(%{$sparesref})) {
502: if (ref($sparesref->{$key}) eq 'ARRAY') {
503: my @sorted = sort { &Apache::lonnet::hostname($a) cmp
504: &Apache::lonnet::hostname($b);
505: } @{$sparesref->{$key}};
506: if (@sorted) {
507: if ($key eq 'primary') {
508: unshift(@sparehosts,@sorted);
509: } elsif ($key eq 'default') {
510: push(@sparehosts,@sorted);
511: }
512: }
513: }
514: }
515: }
516: foreach my $hostid (@sparehosts) {
1.160 kruse 517: next if ($hostid eq $lonhost);
518: my $hostname = &Apache::lonnet::hostname($hostid);
1.180 raeburn 519: next if (($hostname eq '') || ($spareservers{$hostname}));
520: $spareservers{$hostname} = 1;
521: my $protocol = $Apache::lonnet::protocol{$hostid};
522: $protocol = 'http' if ($protocol ne 'https');
523: $spares.='<br /><span style="font-size: larger;"><a href="'.$protocol.'://'.
1.160 kruse 524: $hostname.
525: '/adm/login?domain='.$authdomain.'">'.
526: $hostname.'</a>'.
1.180 raeburn 527: ' '.&mt('(preferred)').'</span>'.$/;
1.160 kruse 528: }
529: if ($spares) {
530: $spares.= '<br />';
531: }
532: my %all_hostnames = &Apache::lonnet::all_hostnames();
533: foreach my $hostid (sort
534: {
535: &Apache::lonnet::hostname($a) cmp
536: &Apache::lonnet::hostname($b);
537: }
538: keys(%all_hostnames)) {
1.180 raeburn 539: next if ($hostid eq $lonhost);
1.160 kruse 540: my $hostname = &Apache::lonnet::hostname($hostid);
1.180 raeburn 541: next if (($hostname eq '') || ($spareservers{$hostname}));
1.181 raeburn 542: $spareservers{$hostname} = 1;
1.180 raeburn 543: my $protocol = $Apache::lonnet::protocol{$hostid};
544: $protocol = 'http' if ($protocol ne 'https');
545: $spares.='<br /><a href="'.$protocol.'://'.
1.160 kruse 546: $hostname.
547: '/adm/login?domain='.$authdomain.'">'.
548: $hostname.'</a>';
549: }
550: $r->print(
1.180 raeburn 551: '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">'
552: .'<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">'
553: .'<head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>'
1.160 kruse 554: .&mt('The LearningOnline Network with CAPA')
555: .'</title></head>'
556: .'<body bgcolor="#FFFFFF">'
557: .'<h1>'.&mt('The LearningOnline Network with CAPA').'</h1>'
1.180 raeburn 558: .'<img src="/adm/lonKaputt/lonlogo_broken.gif" alt="broken icon" align="right" />'
1.160 kruse 559: .'<h3>'.&mt('This LON-CAPA server is temporarily not available for login.').'</h3>');
560: if ($spares) {
561: $r->print('<p>'.&mt('Please attempt to login to one of the following servers:')
562: .'</p>'
563: .$spares);
564: }
565: $r->print('</body>'
566: .'</html>'
567: );
568: return OK;
569: }
570:
571: # ----------------------------------------------- Apparently we are in business
572: $servadm=~s/\,/\<br \/\>/g;
573:
574: # ----------------------------------------------------------- Front page design
575: my $pgbg=&Apache::loncommon::designparm('login.pgbg',$domain);
576: my $font=&Apache::loncommon::designparm('login.font',$domain);
577: my $link=&Apache::loncommon::designparm('login.link',$domain);
578: my $vlink=&Apache::loncommon::designparm('login.vlink',$domain);
579: my $alink=&Apache::loncommon::designparm('login.alink',$domain);
580: my $mainbg=&Apache::loncommon::designparm('login.mainbg',$domain);
581: my $loginbox_bg=&Apache::loncommon::designparm('login.sidebg',$domain);
582: my $loginbox_header_bgcol=&Apache::loncommon::designparm('login.bgcol',$domain);
583: my $loginbox_header_textcol=&Apache::loncommon::designparm('login.textcol',$domain);
584: my $logo=&Apache::loncommon::designparm('login.logo',$domain);
585: my $img=&Apache::loncommon::designparm('login.img',$domain);
586: my $domainlogo=&Apache::loncommon::domainlogo($domain);
587: my $showbanner = 1;
588: my $showmainlogo = 1;
589: if (defined(&Apache::loncommon::designparm('login.showlogo_img',$domain))) {
590: $showbanner = &Apache::loncommon::designparm('login.showlogo_img',$domain);
591: }
592: if (defined(&Apache::loncommon::designparm('login.showlogo_logo',$domain))) {
593: $showmainlogo = &Apache::loncommon::designparm('login.showlogo_logo',$domain);
594: }
595: my $showadminmail;
596: my @possdoms = &Apache::lonnet::current_machine_domains();
597: if (grep(/^\Q$domain\E$/,@possdoms)) {
598: $showadminmail=&Apache::loncommon::designparm('login.adminmail',$domain);
599: }
600: my $showcoursecat =
601: &Apache::loncommon::designparm('login.coursecatalog',$domain);
602: my $shownewuserlink =
603: &Apache::loncommon::designparm('login.newuser',$domain);
604: my $showhelpdesk =
605: &Apache::loncommon::designparm('login.helpdesk',$domain);
606: my $now=time;
607: my $js = (<<ENDSCRIPT);
608:
609: <script type="text/javascript" language="JavaScript">
610: // <![CDATA[
611: function send()
612: {
613: this.document.server.elements.uname.value
614: =this.document.client.elements.uname.value;
615:
616: this.document.server.elements.udom.value
617: =this.document.client.elements.udom.value;
618:
619: uextkey=this.document.client.elements.uextkey.value;
620: lextkey=this.document.client.elements.lextkey.value;
621: initkeys();
622:
623: if(this.document.server.action.substr(0,5) === 'http:'){
1.165 raeburn 624: this.document.server.elements.upass0.value
625: =getCrypted(this.document.client.elements.upass$now.value);
1.166 raeburn 626: } else {
627: this.document.server.elements.upass0.value
628: =this.document.client.elements.upass$now.value;
1.167 raeburn 629: }
1.160 kruse 630:
631: this.document.client.elements.uname.value='';
632: this.document.client.elements.upass$now.value='';
633:
634: this.document.server.submit();
635: return false;
636: }
637:
638: function enableInput() {
639: this.document.client.elements.upass$now.removeAttribute("readOnly");
640: this.document.client.elements.uname.removeAttribute("readOnly");
641: this.document.client.elements.udom.removeAttribute("readOnly");
642: return;
643: }
644:
645: // ]]>
646: </script>
647:
648: ENDSCRIPT
649:
1.184 raeburn 650: my ($lonhost_in_use,@hosts,%defaultdomconf,$saml_prefix,$saml_landing,
651: $samlssotext,$samlnonsso,$samlssoimg,$samlssoalt,$samlssourl,$samltooltip);
652: %defaultdomconf = &Apache::loncommon::get_domainconf($defdom);
653: @hosts = &Apache::lonnet::current_machine_ids();
654: $lonhost_in_use = $lonhost;
655: if (@hosts > 1) {
656: foreach my $hostid (@hosts) {
657: if (&Apache::lonnet::host_domain($hostid) eq $defdom) {
658: $lonhost_in_use = $hostid;
659: last;
660: }
661: }
662: }
663: $saml_prefix = $defdom.'.login.saml_';
664: if ($defaultdomconf{$saml_prefix.$lonhost_in_use}) {
665: $saml_landing = 1;
666: $samlssotext = $defaultdomconf{$saml_prefix.'text_'.$lonhost_in_use};
667: $samlnonsso = $defaultdomconf{$saml_prefix.'notsso_'.$lonhost_in_use};
668: $samlssoimg = $defaultdomconf{$saml_prefix.'img_'.$lonhost_in_use};
669: $samlssoalt = $defaultdomconf{$saml_prefix.'alt_'.$lonhost_in_use};
670: $samlssourl = $defaultdomconf{$saml_prefix.'url_'.$lonhost_in_use};
671: $samltooltip = $defaultdomconf{$saml_prefix.'title_'.$lonhost_in_use};
672: }
673: if ($saml_landing) {
674: if ($samlssotext eq '') {
675: $samlssotext = 'SSO Login';
676: }
677: if ($samlnonsso eq '') {
678: $samlnonsso = 'Non-SSO Login';
679: }
680: $js .= <<"ENDSAMLJS";
681:
682: <script type="text/javascript">
683: // <![CDATA[
684: function toggleLClogin() {
685: if (document.getElementById('LC_standard_login')) {
686: if (document.getElementById('LC_standard_login').style.display == 'none') {
687: document.getElementById('LC_standard_login').style.display = 'inline-block';
688: if (document.getElementById('LC_login_text')) {
689: document.getElementById('LC_login_text').innerHTML = '$samlnonsso';
690: }
1.195 raeburn 691: if ( document.client.uname ) { document.client.uname.focus(); }
1.184 raeburn 692: if (document.getElementById('LC_SSO_login')) {
693: document.getElementById('LC_SSO_login').style.display = 'none';
694: }
695: } else {
696: document.getElementById('LC_standard_login').style.display = 'none';
697: if (document.getElementById('LC_login_text')) {
698: document.getElementById('LC_login_text').innerHTML = '$samlssotext';
699: }
700: if (document.getElementById('LC_SSO_login')) {
701: document.getElementById('LC_SSO_login').style.display = 'inline-block';
702: }
703: }
704: }
705: return;
706: }
707:
708: // ]]>
709: </script>
710:
711: ENDSAMLJS
712: }
713:
1.160 kruse 714: # --------------------------------------------------- Print login screen header
715:
716: my %add_entries = (
717: bgcolor => "$mainbg",
718: text => "$font",
719: link => "$link",
720: vlink => "$vlink",
721: alink => "$alink",
722: onload => 'javascript:enableInput();',);
723:
1.186 raeburn 724: my ($headextra,$headextra_exempt);
1.164 raeburn 725: $headextra = $defaultdomconf{$defdom.'.login.headtag_'.$lonhost_in_use};
726: $headextra_exempt = $defaultdomconf{$domain.'.login.headtag_exempt_'.$lonhost_in_use};
1.161 raeburn 727: if ($headextra) {
728: my $omitextra;
729: if ($headextra_exempt ne '') {
730: my @exempt = split(',',$headextra_exempt);
1.182 raeburn 731: my $ip = &Apache::lonnet::get_requestor_ip();
1.161 raeburn 732: if (grep(/^\Q$ip\E$/,@exempt)) {
733: $omitextra = 1;
734: }
735: }
736: unless ($omitextra) {
737: my $confname = $defdom.'-domainconfig';
1.163 raeburn 738: if ($headextra =~ m{^\Q/res/$defdom/$confname/login/headtag/$lonhost_in_use/\E}) {
1.161 raeburn 739: my $extra = &Apache::lonnet::getfile(&Apache::lonnet::filelocation("",$headextra));
740: unless ($extra eq '-1') {
741: $js .= "\n".$extra."\n";
742: }
743: }
744: }
745: }
746:
1.160 kruse 747: $r->print(&Apache::loncommon::start_page('The LearningOnline Network with CAPA Login',$js,
748: { 'redirect' => [$expire,'/adm/roles'],
749: 'add_entries' => \%add_entries,
750: 'only_body' => 1,}));
751:
752: # ----------------------------------------------------------------------- Texts
753:
754: my %lt=&Apache::lonlocal::texthash(
755: 'un' => 'Username',
756: 'pw' => 'Password',
757: 'dom' => 'Domain',
758: 'perc' => 'percent',
759: 'load' => 'Server Load',
760: 'userload' => 'User Load',
761: 'catalog' => 'Course/Community Catalog',
762: 'log' => 'Log in',
763: 'help' => 'Log-in Help',
764: 'serv' => 'Server',
765: 'servadm' => 'Server Administration',
766: 'helpdesk' => 'Contact Helpdesk',
767: 'forgotpw' => 'Forgot password?',
768: 'newuser' => 'New User?',
1.184 raeburn 769: 'change' => 'Change?',
1.160 kruse 770: );
771: # -------------------------------------------------- Change password field name
772:
773: my $forgotpw = &forgotpwdisplay(%lt);
774: $forgotpw .= '<br />' if $forgotpw;
775: my $loginhelp = &Apache::lonauth::loginhelpdisplay($authdomain);
776: if ($loginhelp) {
777: $loginhelp = '<a href="'.$loginhelp.'">'.$lt{'help'}.'</a><br />';
778: }
779:
780: # ---------------------------------------------------- Serve out DES JavaScript
781: {
782: my $jsh=Apache::File->new($include."/londes.js");
783: $r->print(<$jsh>);
784: }
785: # ---------------------------------------------------------- Serve rest of page
786:
787: $r->print(
788: '<div class="LC_Box"'
789: .' style="margin:0 auto; padding:10px; width:90%; height: auto; background-color:#FFFFFF;">'
790: );
791:
792: $r->print(<<ENDSERVERFORM);
793: <form name="server" action="/adm/authenticate" method="post" target="_top">
794: <input type="hidden" name="logtoken" value="$logtoken" />
795: <input type="hidden" name="serverid" value="$lonhost" />
796: <input type="hidden" name="uname" value="" />
797: <input type="hidden" name="upass0" value="" />
798: <input type="hidden" name="udom" value="" />
799: <input type="hidden" name="localpath" value="$env{'form.localpath'}" />
800: <input type="hidden" name="localres" value="$env{'form.localres'}" />
801: </form>
802: ENDSERVERFORM
803: my $coursecatalog;
804: if (($showcoursecat eq '') || ($showcoursecat)) {
805: $coursecatalog = &coursecatalog_link($lt{'catalog'}).'<br />';
806: }
807: my $newuserlink;
808: if ($shownewuserlink) {
809: $newuserlink = &newuser_link($lt{'newuser'}).'<br />';
810: }
811: my $logintitle =
812: '<h2 class="LC_hcell"'
813: .' style="background:'.$loginbox_header_bgcol.';'
814: .' color:'.$loginbox_header_textcol.'">'
815: .$lt{'log'}
816: .'</h2>';
817:
818: my $noscript_warning='<noscript><span class="LC_warning"><b>'
819: .&mt('Use of LON-CAPA requires Javascript to be enabled in your web browser.')
820: .'</b></span></noscript>';
821: my $helpdeskscript;
822: my $contactblock = &contactdisplay(\%lt,$servadm,$showadminmail,
823: $authdomain,\$helpdeskscript,
824: $showhelpdesk,\@possdoms);
825:
826: my $mobileargs;
827: if ($clientmobile) {
828: $mobileargs = 'autocapitalize="off" autocorrect="off"';
829: }
830: my $loginform=(<<LFORM);
1.184 raeburn 831: <form name="client" action="" onsubmit="return(send())" id="lclogin">
1.160 kruse 832: <input type="hidden" name="lextkey" value="$lextkey" />
833: <input type="hidden" name="uextkey" value="$uextkey" />
834: <b><label for="uname">$lt{'un'}</label>:</b><br />
835: <input type="text" name="uname" id="uname" size="15" value="$authusername" readonly="readonly" $mobileargs /><br />
836: <b><label for="upass$now">$lt{'pw'}</label>:</b><br />
837: <input type="password" name="upass$now" id="upass$now" size="15" readonly="readonly" /><br />
838: <b><label for="udom">$lt{'dom'}</label>:</b><br />
839: <input type="text" name="udom" id="udom" size="15" value="$authdomain" readonly="readonly" $mobileargs /><br />
840: <input type="submit" value="$lt{'log'}" />
841: </form>
842: LFORM
843:
844: if ($showbanner) {
1.194 raeburn 845: my $alttext = &Apache::loncommon::designparm('login.alttext_img',$domain);
846: if ($alttext eq '') {
847: $alttext = 'The Learning Online Network with CAPA';
848: }
1.160 kruse 849: $r->print(<<HEADER);
850: <!-- The LON-CAPA Header -->
851: <div style="background:$pgbg;margin:0;width:100%;">
1.194 raeburn 852: <img src="$img" border="0" alt="$alttext" class="LC_maxwidth" id="lcloginbanner" />
1.160 kruse 853: </div>
854: HEADER
855: }
1.184 raeburn 856:
857: my $stdauthformstyle = 'inline-block';
858: my $ssoauthstyle = 'none';
859: my $logintype;
860: $r->print('<div style="float:left;margin-top:0;">');
861: if ($saml_landing) {
862: $ssoauthstyle = 'inline-block';
863: $stdauthformstyle = 'none';
864: $logintype = $samlssotext;
865: my $ssologin = '/adm/sso';
866: if ($samlssourl ne '') {
867: $ssologin = $samlssourl;
868: }
1.192 raeburn 869: if (($logtoken eq 'con_lost') || ($logtoken eq 'no_such_host')) {
870: my $querystring;
871: if ($env{'form.firsturl'} ne '') {
872: $querystring = 'origurl=';
873: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) {
874: $querystring .= &uri_escape_utf8($env{'form.firsturl'});
875: } else {
876: $querystring .= &uri_escape($env{'form.firsturl'});
877: }
878: $querystring = &HTML::Entities::encode($querystring,"'");
879: }
880: if ($env{'form.ltoken'} ne '') {
881: $querystring .= (($querystring eq '')?'':'&') . 'ltoken='.
882: &HTML::Entities::encode(&uri_escape($env{'form.ltoken'}));
883: } elsif ($env{'form.linkkey'}) {
884: $querystring .= (($querystring eq '')?'':'&') . 'linkkey='.
885: &HTML::Entities::encode(&uri_escape($env{'form.linkkey'}));
886: }
887: if ($querystring ne '') {
888: $ssologin .= (($ssologin=~/\?/)?'&':'?') . $querystring;
1.188 raeburn 889: }
1.192 raeburn 890: } elsif ($logtoken ne '') {
891: $ssologin .= (($ssologin=~/\?/)?'&':'?') . 'logtoken='.$logtoken;
1.191 raeburn 892: }
1.184 raeburn 893: my $ssohref;
894: if ($samlssoimg ne '') {
1.194 raeburn 895: $ssohref = '<a href="'.$ssologin.'" title="'.$samltooltip.'">'.
896: '<img src="'.$samlssoimg.'" alt="'.$samlssoalt.'" id="lcssobutton" /></a>';
1.184 raeburn 897: } else {
898: $ssohref = '<a href="'.$ssologin.'">'.$samlssotext.'</a>';
899: }
900: if (($env{'form.saml'} eq 'no') ||
901: (($env{'form.username'} ne '') && ($env{'form.domain'} ne ''))) {
902: $ssoauthstyle = 'none';
903: $stdauthformstyle = 'inline-block';
904: $logintype = $samlnonsso;
905: }
906: $r->print(<<ENDSAML);
907: <p>
908: Log-in type:
909: <span style="font-weight:bold" id="LC_login_text">$logintype</span><br />
910: <span><a href="javascript:toggleLClogin();" style="color:#000000">$lt{'change'}</a></span>
911: </p>
912: <div style="display:$ssoauthstyle" id="LC_SSO_login">
913: <div class="LC_Box" style="padding-top: 10px;">
914: $ssohref
915: $noscript_warning
916: </div>
917: <div class="LC_Box" style="padding-top: 10px;">
918: $loginhelp
919: $contactblock
920: $coursecatalog
921: </div>
922: </div>
923: ENDSAML
1.191 raeburn 924: } else {
925: if ($env{'form.ltoken'}) {
926: &Apache::lonnet::tmpdel($env{'form.ltoken'});
927: delete($env{'form.ltoken'});
928: }
1.184 raeburn 929: }
1.196 raeburn 930: my $in_frame_js;
931: if ($linkprot_for_login) {
932: my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2);
933: if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) {
934: my $set_target;
1.198 raeburn 935: if (($env{'form.retry'}) || ($env{'form.sso'})) {
1.196 raeburn 936: if ($linkproturi eq $env{'form.firsturl'}) {
937: $set_target = " document.server.target = '_self';";
938: }
939: } else {
940: $set_target = <<ENDTARG;
941: var linkproturi = '$linkproturi';
942: var path = document.location.pathname.replace( new RegExp('^/adm/launch'),'');
943: if (linkproturi == path) {
944: document.server.target = '_self';
945: }
946: ENDTARG
947: }
948: $in_frame_js = <<ENDJS;
949: <script type="text/javascript">
950: // <![CDATA[
951: if ((window.self !== window.top) && (document.server.target != '_self')) {
952: $set_target
953: }
954: // ]]>
955: </script>
956: ENDJS
957: }
958: }
1.184 raeburn 959:
960: $r->print(<<ENDLOGIN);
961: <div style="display:$stdauthformstyle;" id="LC_standard_login">
1.160 kruse 962: <div class="LC_Box" style="background:$loginbox_bg;">
963: $logintitle
964: $loginform
965: $noscript_warning
966: </div>
967:
968: <div class="LC_Box" style="padding-top: 10px;">
969: $loginhelp
970: $forgotpw
971: $contactblock
972: $newuserlink
973: $coursecatalog
974: </div>
975: </div>
976:
1.184 raeburn 977: ENDLOGIN
978: $r->print('</div><div>'."\n");
1.160 kruse 979: if ($showmainlogo) {
1.194 raeburn 980: my $alttext = &Apache::loncommon::designparm('login.alttext_logo',$domain);
981: $r->print(' <img src="'.$logo.'" alt="'.$alttext.'" class="LC_maxwidth" id="lcloginmainlogo" />'."\n");
1.160 kruse 982: }
983: $r->print(<<ENDTOP);
984: $announcements
985: </div>
986: <hr style="clear:both;" />
987: ENDTOP
988: my ($domainrow,$serverrow,$loadrow,$userloadrow,$versionrow);
989: $domainrow = <<"END";
990: <tr>
991: <td align="left" valign="top">
992: <small><b>$lt{'dom'}: </b></small>
993: </td>
994: <td align="left" valign="top">
995: <small><tt> $domain</tt></small>
996: </td>
997: </tr>
998: END
999: $serverrow = <<"END";
1000: <tr>
1001: <td align="left" valign="top">
1002: <small><b>$lt{'serv'}: </b></small>
1003: </td>
1004: <td align="left" valign="top">
1005: <small><tt> $lonhost ($role)</tt></small>
1006: </td>
1007: </tr>
1008: END
1009: if ($loadlim) {
1010: $loadrow = <<"END";
1011: <tr>
1012: <td align="left" valign="top">
1013: <small><b>$lt{'load'}: </b></small>
1014: </td>
1015: <td align="left" valign="top">
1016: <small><tt> $loadpercent $lt{'perc'}</tt></small>
1017: </td>
1018: </tr>
1019: END
1020: }
1021: if ($uloadlim) {
1022: $userloadrow = <<"END";
1023: <tr>
1024: <td align="left" valign="top">
1025: <small><b>$lt{'userload'}: </b></small>
1026: </td>
1027: <td align="left" valign="top">
1028: <small><tt> $userloadpercent $lt{'perc'}</tt></small>
1029: </td>
1030: </tr>
1031: END
1032: }
1033: if (($version ne '') && ($version ne '<!-- VERSION -->')) {
1034: $versionrow = <<"END";
1035: <tr>
1036: <td colspan="2" align="left">
1037: <small>$version</small>
1038: </td>
1039: </tr>
1040: END
1041: }
1042:
1043: $r->print(<<ENDDOCUMENT);
1044: <div style="float: left;">
1045: <table border="0" cellspacing="0" cellpadding="0">
1046: $domainrow
1047: $serverrow
1048: $loadrow
1049: $userloadrow
1050: $versionrow
1051: </table>
1052: </div>
1053: <div style="float: right;">
1054: $domainlogo
1055: </div>
1056: <br style="clear:both;" />
1057: </div>
1058:
1.197 raeburn 1059: $in_frame_js
1.160 kruse 1060: <script type="text/javascript">
1061: // <![CDATA[
1062: // the if prevents the script error if the browser can not handle this
1063: if ( document.client.uname ) { document.client.uname.focus(); }
1064: // ]]>
1065: </script>
1066: $helpdeskscript
1067:
1068: ENDDOCUMENT
1069: my %endargs = ( 'noredirectlink' => 1, );
1070: $r->print(&Apache::loncommon::end_page(\%endargs));
1071: return OK;
1072: }
1073:
1074: sub check_loginvia {
1.193 raeburn 1075: my ($domain,$lonhost,$lonidsdir,$balcookie) = @_;
1.176 raeburn 1076: if ($domain eq '' || $lonhost eq '' || $lonidsdir eq '') {
1.160 kruse 1077: return;
1078: }
1079: my %domconfhash = &Apache::loncommon::get_domainconf($domain);
1080: my $loginvia = $domconfhash{$domain.'.login.loginvia_'.$lonhost};
1081: my $loginvia_exempt = $domconfhash{$domain.'.login.loginvia_exempt_'.$lonhost};
1082: my $output;
1083: if ($loginvia ne '') {
1084: my $noredirect;
1.182 raeburn 1085: my $ip = &Apache::lonnet::get_requestor_ip();
1.160 kruse 1086: if ($ip eq '127.0.0.1') {
1087: $noredirect = 1;
1088: } else {
1089: if ($loginvia_exempt ne '') {
1090: my @exempt = split(',',$loginvia_exempt);
1091: if (grep(/^\Q$ip\E$/,@exempt)) {
1092: $noredirect = 1;
1093: }
1094: }
1095: }
1096: unless ($noredirect) {
1097: my ($newhost,$path);
1098: if ($loginvia =~ /:/) {
1099: ($newhost,$path) = split(':',$loginvia);
1100: } else {
1101: $newhost = $loginvia;
1102: }
1103: if ($newhost ne $lonhost) {
1104: if (&Apache::lonnet::hostname($newhost) ne '') {
1.176 raeburn 1105: if ($balcookie) {
1106: my ($balancer,$cookie) = split(/:/,$balcookie);
1107: if ($cookie =~ /^($match_domain)_($match_username)_([a-f0-9]+)$/) {
1108: my ($udom,$uname,$cookieid) = ($1,$2,$3);
1109: unless (&Apache::lonnet::delbalcookie($cookie,$balancer) eq 'ok') {
1110: if ((-d $lonidsdir) && (opendir(my $dh,$lonidsdir))) {
1111: while (my $filename=readdir($dh)) {
1112: if ($filename=~/^(\Q$uname\E_\d+_\Q$udom\E_$match_lonid)\.id$/) {
1113: my $handle = $1;
1114: my %hash =
1115: &Apache::lonnet::get_sessionfile_vars($handle,$lonidsdir,
1116: ['request.balancercookie',
1117: 'user.linkedenv']);
1118: if ($hash{'request.balancercookie'} eq "$balancer:$cookieid") {
1119: if (unlink("$lonidsdir/$filename")) {
1120: if (($hash{'user.linkedenv'} =~ /^[a-f0-9]+_linked$/) &&
1121: (-l "$lonidsdir/$hash{'user.linkedenv'}.id") &&
1122: (readlink("$lonidsdir/$hash{'user.linkedenv'}.id") eq "$lonidsdir/$filename")) {
1123: unlink("$lonidsdir/$hash{'user.linkedenv'}.id");
1124: }
1125: }
1126: }
1127: last;
1128: }
1129: }
1130: closedir($dh);
1131: }
1132: }
1133: }
1134: }
1.193 raeburn 1135: $output = &redirect_page($newhost,$path);
1.160 kruse 1136: }
1137: }
1138: }
1139: }
1140: return $output;
1141: }
1142:
1143: sub redirect_page {
1.193 raeburn 1144: my ($desthost,$path) = @_;
1.178 raeburn 1145: my $hostname = &Apache::lonnet::hostname($desthost);
1.160 kruse 1146: my $protocol = $Apache::lonnet::protocol{$desthost};
1147: $protocol = 'http' if ($protocol ne 'https');
1148: unless ($path =~ m{^/}) {
1149: $path = '/'.$path;
1150: }
1.178 raeburn 1151: my $url = $protocol.'://'.$hostname.$path;
1.199 ! raeburn 1152: if ($env{'form.firsturl'} =~ m{^/tiny/$match_domain/\w+$}) {
! 1153: $url = $protocol.'://'.$hostname.$env{'form.firsturl'};
! 1154: if (($env{'form.ltoken'}) || ($env{'form.linkprot'} ne '') ||
! 1155: ($env{'form.linkkey'} ne '')) {
! 1156: my %link_info;
! 1157: if ($env{'form.ltoken'}) {
! 1158: %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'});
! 1159: &Apache::lonnet::tmpdel($env{'form.ltoken'});
! 1160: } elsif ($env{'form.linkprot'}) {
! 1161: $link_info{'linkprot'} = $env{'form.linkprot'};
! 1162: if ($env{'form.linkprotuser'}) {
! 1163: $link_info{'linkprotuser'} = $env{'form.linkprotuser'};
! 1164: }
! 1165: } elsif ($env{'form.linkkey'} ne '') {
! 1166: $link_info{'linkkey'} = $env{'form.linkkey'};
! 1167: }
! 1168: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link');
! 1169: unless (($token eq 'con_lost') || ($token eq 'refused') ||
! 1170: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
! 1171: $url .= '?ltoken='.$token;
! 1172: }
! 1173: }
! 1174: } else {
1.188 raeburn 1175: my $querystring;
1.199 ! raeburn 1176: if ($env{'form.firsturl'} ne '') {
! 1177: if ($env{'form.firsturl'} =~ /[^\x00-\xFF]/) {
! 1178: $querystring = &uri_escape_utf8($env{'form.firsturl'});
! 1179: } else {
! 1180: $querystring = &uri_escape($env{'form.firsturl'});
! 1181: }
! 1182: $querystring = &HTML::Entities::encode($querystring,"'");
! 1183: $querystring = '?firsturl='.$querystring;
1.188 raeburn 1184: }
1.193 raeburn 1185: if ($env{'form.ltoken'}) {
1.199 ! raeburn 1186: my %link_info = &Apache::lonnet::tmpget($env{'form.ltoken'});
! 1187: &Apache::lonnet::tmpdel($env{'form.ltoken'});
! 1188: my $token = &Apache::lonnet::tmpput(\%link_info,$desthost,'link');
! 1189: unless (($token eq 'con_lost') || ($token eq 'refused') || ($token =~ /^error:/) ||
! 1190: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
! 1191: unless (($path eq '/adm/roles') || ($path eq '/adm/login')) {
! 1192: $url = $protocol.'://'.$hostname.'/adm/roles';
! 1193: }
! 1194: $querystring .= (($querystring =~/^\?/)?'&':'?') . 'ttoken='.$token;
! 1195: }
1.177 raeburn 1196: }
1.199 ! raeburn 1197: $url .= $querystring;
1.177 raeburn 1198: }
1.160 kruse 1199: my $start_page = &Apache::loncommon::start_page('Switching Server ...',undef,
1200: {'redirect' => [0,$url],});
1201: my $end_page = &Apache::loncommon::end_page();
1202: return $start_page.$end_page;
1203: }
1204:
1205: sub contactdisplay {
1206: my ($lt,$servadm,$showadminmail,$authdomain,$helpdeskscript,$showhelpdesk,
1207: $possdoms) = @_;
1208: my $contactblock;
1209: my $origmail;
1210: if (ref($possdoms) eq 'ARRAY') {
1211: if (grep(/^\Q$authdomain\E$/,@{$possdoms})) {
1212: $origmail = $Apache::lonnet::perlvar{'lonSupportEMail'};
1213: }
1214: }
1215: my $requestmail =
1216: &Apache::loncommon::build_recipient_list(undef,'helpdeskmail',
1217: $authdomain,$origmail);
1218: unless ($showhelpdesk eq '0') {
1219: if ($requestmail =~ m/[^\@]+\@[^\@]+/) {
1220: $showhelpdesk = 1;
1221: } else {
1222: $showhelpdesk = 0;
1223: }
1224: }
1225: if ($servadm && $showadminmail) {
1226: $contactblock .= $$lt{'servadm'}.':<br />'.
1227: '<tt>'.$servadm.'</tt><br />';
1228: }
1229: if ($showhelpdesk) {
1230: $contactblock .= '<a href="javascript:helpdesk()">'.$lt->{'helpdesk'}.'</a><br />';
1231: my $thisurl = &escape('/adm/login');
1232: $$helpdeskscript = <<"ENDSCRIPT";
1233: <script type="text/javascript">
1234: // <![CDATA[
1235: function helpdesk() {
1236: var possdom = document.client.udom.value;
1237: var codedom = possdom.replace( new RegExp("[^A-Za-z0-9.\\-]","g"),'');
1238: if (codedom == '') {
1239: codedom = "$authdomain";
1240: }
1241: var querystr = "origurl=$thisurl&codedom="+codedom;
1242: document.location.href = "/adm/helpdesk?"+querystr;
1243: return;
1244: }
1245: // ]]>
1246: </script>
1247: ENDSCRIPT
1248: }
1249: return $contactblock;
1250: }
1251:
1252: sub forgotpwdisplay {
1253: my (%lt) = @_;
1254: my $prompt_for_resetpw = 1;
1255: if ($prompt_for_resetpw) {
1256: return '<a href="/adm/resetpw">'.$lt{'forgotpw'}.'</a>';
1257: }
1258: return;
1259: }
1260:
1261: sub coursecatalog_link {
1262: my ($linkname) = @_;
1263: return <<"END";
1264: <a href="/adm/coursecatalog">$linkname</a>
1265: END
1266: }
1267:
1268: sub newuser_link {
1269: my ($linkname) = @_;
1270: return '<a href="/adm/createaccount">'.$linkname.'</a>';
1271: }
1272:
1.192 raeburn 1273: sub decode_token {
1274: my ($info) = @_;
1275: my ($firsturl,@rest)=split(/\&/,$info);
1276: my %form;
1277: if ($firsturl ne '') {
1278: $form{'firsturl'} = &unescape($firsturl);
1279: }
1280: foreach my $item (@rest) {
1281: my ($key,$value) = split(/=/,$item);
1282: $form{$key} = &unescape($value);
1283: }
1284: return %form;
1285: }
1286:
1.160 kruse 1287: 1;
1288: __END__
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