File:
[LON-CAPA] /
loncom /
auth /
migrateuser.pm
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1.22:
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Sun Oct 5 13:49:11 2014 UTC (9 years, 10 months ago) by
raeburn
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Bug 6675 (IP change detected in session migration).
LON-CAPA domain configuration for multi-domain server set-ups.
- Support configuration of loadbalancer server for both non-SSO users and
SSO users for all LON-CAPA domains which are hosted on servers belonging
to the balancer's "internet domain".
1: # The LearningOnline Network
2: # Starts a user off based of an existing token.
3: #
4: # $Id: migrateuser.pm,v 1.22 2014/10/05 13:49:11 raeburn Exp $
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::migrateuser;
30:
31: use strict;
32: use LONCAPA qw(:DEFAULT :match);
33: use Apache::Constants qw(:common :http :methods);
34: use Apache::lonauth;
35: use Apache::lonnet;
36: use Apache::lonlocal;
37: use Apache::lonlogin();
38:
39: sub goto_login {
40: my ($r) = @_;
41: &Apache::loncommon::content_type($r,'text/html');
42: $r->send_http_header;
43: $r->print(&Apache::loncommon::start_page('Going to login',undef,
44: {'redirect' =>
45: [0,'/adm/login'],}).
46: '<h1>'.&mt('One moment please...').'</h1>'.
47: '<p>'.&mt('Transferring to login page.').'</p>'.
48: &Apache::loncommon::end_page());
49: return OK;
50: }
51:
52:
53: sub sso_check {
54: my ($data) = @_;
55: my %extra_env;
56: if (ref($data) eq 'HASH') {
57: if ($data->{'sso.login'}) {
58: $extra_env{'request.sso.login'} = $data->{'sso.login'};
59: }
60: if ($data->{'sso.reloginserver'}) {
61: $extra_env{'request.sso.reloginserver'} =
62: $data->{'sso.reloginserver'};
63: }
64: }
65: return \%extra_env;
66: }
67:
68: sub ip_changed {
69: my ($r,$udom,$camefrom,$dataref) = @_;
70: &Apache::loncommon::content_type($r,'text/html');
71: $r->send_http_header;
72: if (ref($dataref) eq 'HASH') {
73: my $title = 'LON-CAPA Session redirected';
74: my $message = &mt('Your internet address has changed since you logged in.');
75: my $rule_in_effect;
76: if ($dataref->{'balancer'}) {
77: my $baldom = &Apache::lonnet::host_domain($camefrom);
78: my $balprimaryid = &Apache::lonnet::domain($baldom,'primary');
79: my $balintdom = &Apache::lonnet::internet_dom($balprimaryid);
80: my $uprimaryid = &Apache::lonnet::domain($udom,'primary');
81: my $uintdom = &Apache::lonnet::internet_dom($uprimaryid);
82: my $dom_in_use;
83: if (($uintdom ne '') && ($uintdom eq $balintdom)) {
84: $dom_in_use = $udom;
85: } else {
86: $dom_in_use = $baldom;
87: }
88: my ($result,$cached)=&Apache::lonnet::is_cached_new('loadbalancing',$dom_in_use);
89: unless (defined($cached)) {
90: my $cachetime = 60*60*24;
91: my %domconfig =
92: &Apache::lonnet::get_dom('configuration',['loadbalancing'],$dom_in_use);
93: if (ref($domconfig{'loadbalancing'}) eq 'HASH') {
94: $result = &Apache::lonnet::do_cache_new('loadbalancing',$dom_in_use,
95: $domconfig{'loadbalancing'},$cachetime);
96: }
97: }
98: if (ref($result) eq 'HASH') {
99: (undef,my $currtargets,my $currrules) =
100: &Apache::lonnet::check_balancer_result($result,$dataref->{'server'});
101: if (ref($currrules) eq 'HASH') {
102: if ($dataref->{'sso.login'}) {
103: if ($currrules->{'_LC_ipchangesso'} ne '') {
104: $rule_in_effect = $currrules->{'_LC_ipchangesso'};
105: }
106: } else {
107: if ($currrules->{'_LC_ipchange'} ne '') {
108: $rule_in_effect = $currrules->{'_LC_ipchange'};
109: }
110: }
111: }
112: }
113: }
114: my $url;
115: my $lonhost= $r->dir_config('lonHostID');
116: my $switchto = $lonhost;
117: if ($rule_in_effect eq 'balancer') {
118: my $hosthere;
119: if ($dataref->{'role'}) {
120: my ($adom,$aname);
121: if ($dataref->{'role'} =~ m{^au\./($match_domain)/$}) {
122: $adom = $1;
123: $aname = $dataref->{'username'};
124: } elsif ($dataref->{'role'} =~ m{^(?:ca|aa)\./($match_domain)/($match_username)$}) {
125: $adom = $1;
126: $aname = $2;
127: }
128: if ($adom ne '' && $aname ne '') {
129: my $ahome = &Apache::lonnet::homeserver($aname,$adom);
130: unless ($ahome eq 'no_host') {
131: my @ids=&Apache::lonnet::current_machine_ids();
132: if ($ahome && grep(/^\Q$ahome\E$/,@ids)) {
133: $hosthere = 1;
134: }
135: }
136: }
137: }
138: unless ($hosthere) {
139: my $hostname = &Apache::lonnet::hostname($dataref->{'server'});
140: if ($hostname) {
141: $switchto = $dataref->{'server'};
142: my $protocol = $Apache::lonnet::protocol{$switchto};
143: $protocol = 'http' if ($protocol ne 'https');
144: $url = $protocol.'://'.$hostname;
145: $message .= '<br />'.
146: &mt('As a result, your LON-CAPA session is being redirected to the server where you originally logged in.');
147: }
148: }
149: }
150: if ($dataref->{'sso.login'}) {
151: $url .= '/adm/roles';
152: } else {
153: $url .= '/adm/login';
154: $message .= '<br />'.&mt('You will need to provide your password one more time.');
155: }
156: my %info= (
157: 'domain' => $dataref->{'domain'},
158: 'username' => $dataref->{'username'},
159: 'role' => $dataref->{'role'},
160: 'sessionserver' => $lonhost,
161: );
162: if ($dataref->{'origurl'}) {
163: $info{'origurl'} = $dataref->{'origurl'};
164: }
165: if ($dataref->{'symb'}) {
166: $info{'symb'} = $dataref->{'symb'};
167: }
168: my $iptoken = &Apache::lonnet::tmpput(\%info,$switchto);
169: unless ($iptoken eq 'conlost') {
170: $url .= '?iptoken='.$iptoken;
171: }
172: $r->print(&Apache::loncommon::start_page($title,undef,
173: {'redirect' =>
174: [2,$url],}).
175: '<h1>'.&mt('One moment please...').'</h1>'.
176: '<p class="LC_warning">'.$message.'</p>'.
177: &Apache::loncommon::end_page());
178: } else {
179: return &goto_login($r);
180: }
181: return OK;
182: }
183:
184: sub handler {
185: my ($r) = @_;
186:
187: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['token']);
188: my %data = &Apache::lonnet::tmpget($env{'form.token'});
189: if (keys(%data) == 0) {
190: return &goto_login($r);
191: }
192: my $delete = &Apache::lonnet::tmpdel($env{'form.token'});
193:
194: &Apache::lonlocal::get_language_handle($r);
195:
196: if ($delete ne 'ok') {
197: return &goto_login($r);
198: }
199:
200: if (!defined($data{'username'}) || !defined($data{'domain'})) {
201: return &goto_login($r);
202: }
203: if ($data{'ip'} ne $ENV{'REMOTE_ADDR'}) {
204: return &ip_changed($r,$data{'domain'},$data{'server'},\%data);
205: }
206:
207: &Apache::lonnet::logthis("Allowing access for $data{'username'}:$data{'domain'} to $data{'role'}");
208: my $home=&Apache::lonnet::homeserver($data{'username'},$data{'domain'});
209: if ($home =~ /(con_lost|no_such_host)/) { return &goto_login($r); }
210:
211: my $extra_env = &sso_check(\%data);
212:
213: my %form;
214: if ($data{'symb'} ne '') {
215: $form{'symb'} = $data{'symb'};
216: }
217: if ($data{'iptoken'} ne '') {
218: $form{'iptoken'} = $data{'iptoken'};
219: }
220:
221: if (!$data{'role'}) {
222: my $handle = &Apache::lonnet::check_for_valid_session($r);
223: if ($handle) {
224: &Apache::lonnet::transfer_profile_to_env($r->dir_config('lonIDsDir'),
225: $handle);
226: if ($data{'origurl'} ne '') {
227: $r->internal_redirect($data{'origurl'});
228: } elsif ($env{'request.course.id'}) {
229: $r->internal_redirect('/adm/navmaps');
230: } else {
231: $r->internal_redirect('/adm/roles');
232: }
233: } else {
234: my $desturl = '/adm/roles';
235: if ($data{'origurl'} ne '') {
236: $desturl = $data{'origurl'};
237: }
238: &Apache::lonauth::success($r,$data{'username'},$data{'domain'},
239: $home,$desturl,$extra_env,\%form);
240:
241: }
242: return OK;
243:
244: }
245:
246: my $next_url='/adm/roles?selectrole=1&'.&escape($data{'role'}).'=1';
247: if ($data{'origurl'} ne '') {
248: $next_url .= '&orgurl='.&escape($data{'origurl'});
249: }
250: &Apache::lonauth::success($r,$data{'username'},$data{'domain'},$home,
251: $next_url,$extra_env,\%form);
252: return OK;
253: }
254:
255: 1;
256: __END__
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