Annotation of loncom/auth/switchserver.pm, revision 1.28
1.1 albertel 1: # The LearningOnline Network
2: # Switch Servers Handler
3: #
1.28 ! raeburn 4: # $Id: switchserver.pm,v 1.27 2010/07/20 02:42:33 raeburn Exp $
1.1 albertel 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::switchserver;
30:
31: use strict;
32: use Apache::Constants qw(:common);
33: use Apache::lonnet;
34: use Apache::lonmenu;
35: use CGI::Cookie();
36: use Apache::lonlocal;
1.28 ! raeburn 37: use LONCAPA qw(:DEFAULT :match);
1.1 albertel 38:
39: sub init_env {
40: my ($r) = @_;
1.5 albertel 41:
42: if (-e $env{'user.environment'}) {
43: return $env{'user.environment'};
44: }
1.1 albertel 45: my $requrl=$r->uri;
1.18 albertel 46: my $handle= &Apache::lonnet::check_for_valid_session($r);
47: if ($handle ne '') {
1.1 albertel 48: return undef;
49: }
1.18 albertel 50: my $lonidsdir=$r->dir_config('lonIDsDir');
1.1 albertel 51: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
52:
1.5 albertel 53: return $r->dir_config('lonIDsDir')."/$handle.id";
1.1 albertel 54: }
55:
1.14 albertel 56: sub do_redirect {
57: my ($r,$url,$only_body,$extra_text) = @_;
58: $r->send_http_header;
59: my $start_page =
1.16 raeburn 60: &Apache::loncommon::start_page('Switching Server ...',undef,
61: {'redirect' => [0.5,$url],
1.14 albertel 62: 'only_body' => $only_body,});
63: my $end_page = &Apache::loncommon::end_page();
64: $r->print($start_page.$extra_text.$end_page);
65: return OK;
66:
67: }
68:
1.1 albertel 69: sub handler {
1.5 albertel 70: my ($r) = @_;
1.1 albertel 71:
72: my $handle=&init_env($r);
73: if (!defined($handle)) { return FORBIDDEN; }
74:
75: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.22 raeburn 76: ['otherserver','role','origurl','symb']);
1.5 albertel 77:
1.13 albertel 78: my $switch_to=&Apache::lonnet::hostname($env{'form.otherserver'});
1.17 albertel 79: if (! $env{'form.otherserver'}) {
80: $env{'form.otherserver'} =
81: &Apache::lonnet::find_existing_session($env{'user.domain'},
82: $env{'user.name'});
83: if (! $env{'form.otherserver'}) {
84: $env{'form.otherserver'} =
85: &Apache::lonnet::spareserver(30000,undef,1);
86: }
1.13 albertel 87: $switch_to=&Apache::lonnet::hostname($env{'form.otherserver'});
1.4 albertel 88: }
1.5 albertel 89:
1.1 albertel 90: if (!defined($switch_to)) { return FORBIDDEN; }
1.4 albertel 91:
1.14 albertel 92: if ($env{'user.name'} eq 'public'
93: && $env{'user.domain'} eq 'public') {
1.19 albertel 94: my $url = 'http://'.$switch_to.$r->uri;
1.14 albertel 95: return &do_redirect($r,$url,1)
96: }
97:
1.28 ! raeburn 98: my $skip_canhost_check = '';
! 99: if ($env{'form.role'}) {
! 100: if (!exists($env{'user.role.'.$env{'form.role'}})) {
! 101: return FORBIDDEN;
! 102: } else {
! 103: my $now = time;
! 104: my ($start,$end) = split(/\./,$env{'user.role.'.$env{'form.role'}});
! 105: if (($start && $start > $now) || ($end && $end < $now)) {
! 106: return FORBIDDEN;
! 107: } elsif ($env{'form.role'} eq 'au./'.$env{'user.domain'}.'/') {
! 108: if (&Apache::lonnet::homeserver($env{'user.name'},$env{'user.domain'}) eq $env{'form.otherserver'}) {
! 109: $skip_canhost_check = 1;
! 110: }
! 111: } elsif ($env{'form.role'} =~ m{^[ac]a\./($match_domain)/($match_username)/$}) {
! 112: if (&Apache::lonnet::homeserver($2,$1) eq $env{'form.otherserver'}) {
! 113: $skip_canhost_check = 1;
! 114: }
! 115: }
! 116: }
! 117: }
! 118:
! 119: unless ($skip_canhost_check) {
! 120: my $canhost = 1;
! 121: my $uprimary_id = &Apache::lonnet::domain($env{'user.domain'},'primary');
! 122: my $uint_dom = &Apache::lonnet::internet_dom($uprimary_id);
! 123: my @intdoms = &Apache::lonnet::get_internet_names($env{'form.otherserver'});
! 124: unless ($uint_dom ne '' && grep(/^\Q$uint_dom\E$/,@intdoms)) {
! 125: my $serverhomeID = &Apache::lonnet::get_server_homeID($switch_to);
! 126: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
! 127: my %defdomdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
! 128: my %udomdefaults = &Apache::lonnet::get_domain_defaults($env{'user.domain'});
! 129: my $remoterev = &Apache::lonnet::get_server_loncaparev($env{'user.domain'},$env{'form.otherserver'});
! 130: $canhost =
! 131: &Apache::lonnet::can_host_session($env{'user.domain'},
! 132: $env{'form.otherserver'},
! 133: $remoterev,
! 134: $udomdefaults{'remotesessions'},
! 135: $defdomdefaults{'hostedsessions'});
! 136: }
! 137: unless ($canhost) { return FORBIDDEN; }
1.26 raeburn 138: }
139:
1.1 albertel 140: #remove session env, and log event
1.5 albertel 141: unlink($handle);
1.1 albertel 142: my %temp=('switchserver' => time.':'.$env{'form.otherserver'},
143: $env{'form.role'});
144: &Apache::lonnet::put('email_status',\%temp);
145: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
146: $env{'user.home'},
147: "Switch Server to $env{'form.otherserver'} with role $env{'form.role'} $ENV{'REMOTE_ADDR'}");
148:
149: &Apache::loncommon::content_type($r,'text/html');
1.12 albertel 150:
151: #expire the cookie
152: my $c = new CGI::Cookie(-name => 'lonID',
153: -value => '',
154: -expires => '-10y',);
155: $r->header_out('Set-cookie' => $c);
1.20 albertel 156:
157: if ($r->header_only) {
158: $r->send_http_header;
159: return OK;
160: }
1.1 albertel 161: # -------------------------------------------------------- Menu script and info
162:
163: # ---------------------------------------------------------------- Get handover
164:
1.3 albertel 165: my %info=('ip' => $ENV{'REMOTE_ADDR'},
166: 'domain' => $env{'user.domain'},
167: 'username' => $env{'user.name'},
168: 'role' => $env{'form.role'},
169: 'server' => $r->dir_config('lonHostID'));
1.22 raeburn 170: if ($env{'form.origurl'}) {
171: $info{'origurl'} = $env{'form.origurl'};
172: }
173: if ($env{'form.symb'}) {
174: $info{'symb'} = $env{'form.symb'};
175: }
1.8 albertel 176: if ($env{'request.sso.login'}) {
177: $info{'sso.login'} = $env{'request.sso.login'};
178: }
1.11 raeburn 179: if ($env{'request.sso.reloginserver'}) {
180: $info{'sso.reloginserver'} = $env{'request.sso.reloginserver'};
181: }
1.3 albertel 182: my $token = &Apache::lonnet::tmpput(\%info,$env{'form.otherserver'});
1.14 albertel 183: my $url ='http://'.$switch_to.'/adm/login?'.
184: 'domain='.$env{'user.domain'}.
1.21 albertel 185: '&username='.$env{'user.name'}.
186: '&token='.$token;
1.1 albertel 187: # --------------------------------------------------------------- Screen Output
188: &Apache::lonnet::flushcourselogs();
1.24 droeschl 189: return &do_redirect($r, $url, 0);
1.1 albertel 190: }
191:
192: 1;
193: __END__
194:
195:
196:
197:
198:
199:
200:
201:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to switchserver.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / auth