Annotation of loncom/auth/switchserver.pm, revision 1.17
1.1 albertel 1: # The LearningOnline Network
2: # Switch Servers Handler
3: #
1.17 ! albertel 4: # $Id: switchserver.pm,v 1.16 2007/09/08 02:43:33 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;
37:
38: sub init_env {
39: my ($r) = @_;
1.5 albertel 40:
41: if (-e $env{'user.environment'}) {
42: return $env{'user.environment'};
43: }
1.1 albertel 44: my $requrl=$r->uri;
45: my %cookies=CGI::Cookie->parse($r->header_in('Cookie'));
46: my $lonid=$cookies{'lonID'};
47: my $cookie;
48: if (!$lonid) { return undef; }
49:
1.10 albertel 50: my $handle=&LONCAPA::clean_handle($lonid->value);
1.1 albertel 51: my $lonidsdir=$r->dir_config('lonIDsDir');
52: if ((!-e "$lonidsdir/$handle.id") || ($handle eq '')) {
53: $r->log_reason("Cookie $handle not valid", $r->filename);
54: return undef;
55: }
56:
57: &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle);
58:
1.5 albertel 59: return $r->dir_config('lonIDsDir')."/$handle.id";
1.1 albertel 60: }
61:
1.14 albertel 62: sub do_redirect {
63: my ($r,$url,$only_body,$extra_text) = @_;
64: $r->send_http_header;
65: my $start_page =
1.16 raeburn 66: &Apache::loncommon::start_page('Switching Server ...',undef,
67: {'redirect' => [0.5,$url],
68: 'no_inline_link' => 1,
1.14 albertel 69: 'only_body' => $only_body,});
70: my $end_page = &Apache::loncommon::end_page();
71: $r->print($start_page.$extra_text.$end_page);
72: return OK;
73:
74: }
75:
1.1 albertel 76: sub handler {
1.5 albertel 77: my ($r) = @_;
1.1 albertel 78:
79: my $handle=&init_env($r);
80: if (!defined($handle)) { return FORBIDDEN; }
81:
82: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
83: ['otherserver','role']);
1.5 albertel 84:
1.13 albertel 85: my $switch_to=&Apache::lonnet::hostname($env{'form.otherserver'});
1.17 ! albertel 86: if (! $env{'form.otherserver'}) {
! 87: $env{'form.otherserver'} =
! 88: &Apache::lonnet::find_existing_session($env{'user.domain'},
! 89: $env{'user.name'});
! 90: if (! $env{'form.otherserver'}) {
! 91: $env{'form.otherserver'} =
! 92: &Apache::lonnet::spareserver(30000,undef,1);
! 93: }
! 94:
1.13 albertel 95: $switch_to=&Apache::lonnet::hostname($env{'form.otherserver'});
1.4 albertel 96: }
1.5 albertel 97:
1.1 albertel 98: if (!defined($switch_to)) { return FORBIDDEN; }
1.4 albertel 99:
1.14 albertel 100: if ($env{'user.name'} eq 'public'
101: && $env{'user.domain'} eq 'public') {
102: my $url = 'http://'.$switch_to.'/'.$r->uri;
103: return &do_redirect($r,$url,1)
104: }
105:
1.4 albertel 106: if ($env{'form.role'} &&
107: !exists($env{'user.role.'.$env{'form.role'}})) { return FORBIDDEN; }
1.1 albertel 108:
109: #remove session env, and log event
1.5 albertel 110: unlink($handle);
1.1 albertel 111: my %temp=('switchserver' => time.':'.$env{'form.otherserver'},
112: $env{'form.role'});
113: &Apache::lonnet::put('email_status',\%temp);
114: &Apache::lonnet::log($env{'user.domain'},$env{'user.name'},
115: $env{'user.home'},
116: "Switch Server to $env{'form.otherserver'} with role $env{'form.role'} $ENV{'REMOTE_ADDR'}");
117:
118: &Apache::loncommon::content_type($r,'text/html');
1.12 albertel 119:
120: #expire the cookie
121: my $c = new CGI::Cookie(-name => 'lonID',
122: -value => '',
123: -expires => '-10y',);
124: $r->header_out('Set-cookie' => $c);
1.1 albertel 125: $r->send_http_header;
126: return OK if $r->header_only;
127: # -------------------------------------------------------- Menu script and info
128:
1.14 albertel 129: my $windowinfo=
130: &Apache::lonmenu::close().
131: &Apache::lonnavmaps::close();
1.1 albertel 132: # ---------------------------------------------------------------- Get handover
133:
1.3 albertel 134: my %info=('ip' => $ENV{'REMOTE_ADDR'},
135: 'domain' => $env{'user.domain'},
136: 'username' => $env{'user.name'},
137: 'role' => $env{'form.role'},
138: 'server' => $r->dir_config('lonHostID'));
1.8 albertel 139: if ($env{'request.sso.login'}) {
140: $info{'sso.login'} = $env{'request.sso.login'};
141: }
1.11 raeburn 142: if ($env{'request.sso.reloginserver'}) {
143: $info{'sso.reloginserver'} = $env{'request.sso.reloginserver'};
144: }
1.3 albertel 145: my $token = &Apache::lonnet::tmpput(\%info,$env{'form.otherserver'});
1.14 albertel 146: my $url ='http://'.$switch_to.'/adm/login?'.
147: 'domain='.$env{'user.domain'}.
1.15 albertel 148: '&username='.$env{'user.name'}.
149: '&token='.$token;
1.1 albertel 150: # --------------------------------------------------------------- Screen Output
151: &Apache::lonnet::flushcourselogs();
1.14 albertel 152: return &do_redirect($r,$url,0,$windowinfo);
1.1 albertel 153: }
154:
155: 1;
156: __END__
157:
158:
159:
160:
161:
162:
163:
164:
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