File:
[LON-CAPA] /
loncom /
lontrans.pm
Revision
1.14.10.2:
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Tue Dec 14 20:59:19 2021 UTC (2 years, 9 months ago) by
raeburn
Branches:
version_2_11_X
CVS tags:
version_2_11_5,
version_2_11_4_uiuc,
version_2_11_4_msu,
version_2_11_4
Diff to branchpoint 1.14:
preferred,
unified
- For 2.11
Backport 1.27, 1.28, 1.29, 1.30, 1.31, 1.32, 1.33, 1.34 (part),
1.35, 1.36, 1.37 (part), 1.38
1: # The LearningOnline Network
2: # URL translation for User Files
3: #
4: # $Id: lontrans.pm,v 1.14.10.2 2021/12/14 20:59:19 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::lontrans;
30:
31: use strict;
32: use Apache::Constants qw(:common :remotehost);
33: use Apache::lonnet();
34: use Apache::loncommon;
35: use Apache::File();
36: use LONCAPA;
37:
38:
39: sub handler {
40: my $r = shift;
41: # FIXME line remove when mod_perl fixes BUG#4948
42: $r->notes->set('error-notes' => '');
43: my $alias = &Apache::lonnet::get_proxy_alias();
44: if ($alias) {
45: my $hdrhost = $r->headers_in->get('Host');
46: my $lonhost = $r->dir_config('lonHostID');
47: my $hostname = &Apache::lonnet::hostname($lonhost);
48: my $ssourl = '/adm/sso';
49: if ($r->dir_config('lonOtherAuthenUrl') ne '') {
50: $ssourl = $r->dir_config('lonOtherAuthenUrl');
51: }
52: if (($hdrhost eq $alias) || ($hdrhost eq $hostname)) {
53: my $proxyinfo = &Apache::lonnet::get_proxy_settings($r->dir_config('lonDefDomain'));
54: my ($vpnint,$vpnext);
55: if (ref($proxyinfo) eq 'HASH') {
56: $vpnint = $proxyinfo->{'vpnint'};
57: $vpnext = $proxyinfo->{'vpnext'};
58: }
59: my ($redirect,$remote_ip);
60: if ($hdrhost eq $alias) {
61: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
62: if (($vpnext && &Apache::lonnet::ip_match($remote_ip,$vpnext))) {
63: $redirect = $hostname;
64: }
65: if ($r->uri eq $ssourl) {
66: if (&Apache::lonnet::alias_sso($lonhost)) {
67: undef($redirect);
68: } else {
69: $redirect = $hostname;
70: }
71: }
72: if ($redirect eq $hdrhost) {
73: undef($redirect);
74: }
75: } elsif ($hdrhost eq $hostname) {
76: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
77: unless (($remote_ip eq '127.0.0.1') || ($remote_ip eq '::1') ||
78: ($remote_ip eq &Apache::lonnet::get_host_ip($lonhost)) ||
79: ($vpnint && &Apache::lonnet::ip_match($remote_ip,$vpnint))) {
80: $redirect = $alias;
81: if (($r->uri=~m{^/raw/}) || ($r->uri=~m{^/adm/dns/})) {
82: my %iphost = &Apache::lonnet::get_iphost();
83: if (exists($iphost{$remote_ip})) {
84: undef($redirect);
85: }
86: } elsif ($r->uri eq $ssourl) {
87: unless (&Apache::lonnet::alias_sso($lonhost)) {
88: undef($redirect);
89: }
90: }
91: }
92: }
93: if ($redirect) {
94: my $uri = $r->uri;
95: if (($uri eq '/adm/switchserver') || ($uri =~ m{^/Shibboleth.sso/})) {
96: return DECLINED;
97: }
98: unless (($uri eq '/adm/migrateuser') || ($uri eq $ssourl)) {
99: my %user;
100: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
101: if (($handle) && ($user{'name'} ne '') && ($user{'domain'} ne '')) {
102: unless (($user{'name'} eq 'public') && ($user{'domain'} eq 'public')) {
103: my $dest = '/adm/migrateuser';
104: my $token = &set_token($r,$dest,$remote_ip,\%user);
105: unless ($token eq '') {
106: $r->internal_redirect("$dest?token=$token");
107: $r->set_handlers('PerlHandler'=> undef);
108: return DECLINED;
109: }
110: }
111: }
112: }
113: my $protocol = 'http';
114: my $port = $r->get_server_port();
115: if ($port eq '443') {
116: $protocol = 'https';
117: }
118: if ($uri =~ m{^(/adm/css/)(.+)(.css)$}) {
119: $uri = $1.&escape($2).$3;
120: }
121: my $location = $protocol.'://'.$redirect.$uri;
122: if ($r->args) {
123: $location .= '?'.$r->args;
124: }
125: $r->header_out(Location => $location);
126: return REDIRECT;
127: }
128: }
129: }
130: if ($r->uri=~m|^(/raw)?/uploaded/|) {
131: my $fn = $r->uri();
132: $fn=~s/^\/raw//;
133: my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
134: if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
135: my $chome=&Apache::lonnet::homeserver($uname,$udom);
136: my $allowed=0;
137: my @ids=&Apache::lonnet::current_machine_ids();
138: foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
139: if ($allowed) {
140: $r->filename(&propath($udom,$uname).
141: '/userfiles/'.(join('/',@ufile)));
142: }
143: return OK;
144: } elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
145: my $uri = $r->uri;
146: $uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
147: $r->uri($uri);
148: }
149: return DECLINED;
150: }
151:
152: sub set_token {
153: my ($r,$dest,$remote_ip,$userref) = @_;
154: my (%info,%user);
155: if ($dest eq '/adm/migrateuser') {
156: return unless (ref($userref) eq 'HASH');
157: %user = %{$userref};
158: %info = ('ip' => $remote_ip,
159: 'domain' => $user{'domain'},
160: 'username' => $user{'name'},
161: 'server' => $r->dir_config('lonHostID'),
162: );
163: }
164: if ($r->args) {
165: foreach my $pair (split(/&/,$r->args)) {
166: my ($name,$value) = split(/=/,$pair);
167: $name = &LONCAPA::unescape($name);
168: next unless (($name eq 'role') || ($name eq 'symb'));
169: $value =~ tr/+/ /;
170: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
171: $info{$name} = $value;
172: }
173: }
174: if ($dest eq '/adm/migrateuser') {
175: unless ($info{'role'}) {
176: if ($user{'role'} ne '') {
177: $info{'role'} = $user{'role'};
178: }
179: }
180: unless ($info{'symb'}) {
181: unless ($r->uri eq '/adm/roles') {
182: $info{'origurl'} = $r->uri;
183: }
184: }
185: }
186: if (($dest eq '/adm/migrateuser') || (keys(%info) > 0)) {
187: unless ($dest eq '/adm/migrateuser') {
188: $info{'origurl'} = $r->uri;
189: }
190: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
191: unless (($token eq 'con_lost') || ($token eq 'refused') ||
192: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
193: return $token;
194: }
195: }
196: return;
197: }
198:
199: 1;
200: __END__
201:
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