Annotation of loncom/lontrans.pm, revision 1.29
1.1 www 1: # The LearningOnline Network
2: # URL translation for User Files
3: #
1.29 ! raeburn 4: # $Id: lontrans.pm,v 1.28 2020/12/23 22:03:42 raeburn Exp $
1.1 www 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;
1.25 raeburn 32: use Apache::Constants qw(:common :remotehost REDIRECT);
1.18 raeburn 33: use Apache::lonnet;
1.1 www 34: use Apache::File();
1.15 raeburn 35: use LONCAPA qw(:DEFAULT :match);
1.2 www 36:
1.1 www 37: sub handler {
38: my $r = shift;
1.25 raeburn 39: # FIXME line remove when mod_perl fixes BUG#4948
1.12 albertel 40: $r->notes->set('error-notes' => '');
1.28 raeburn 41: my $hdrhost = $r->headers_in->get('Host');
1.25 raeburn 42: if ($r->uri=~m{^/raw/}) {
1.28 raeburn 43: if ($hdrhost) {
44: unless ($hdrhost =~ /^internal\-/) {
1.27 raeburn 45: my $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
1.16 raeburn 46: my $lonhost = $r->dir_config('lonHostID');
47: if (&redirect_raw($remote_ip,$lonhost)) {
1.28 raeburn 48: my $location = 'https://internal-'.$hdrhost.$r->uri;
1.16 raeburn 49: $r->headers_out->set(Location => $location);
50: return REDIRECT;
1.15 raeburn 51: }
52: }
53: }
54: }
1.27 raeburn 55: my $alias = &Apache::lonnet::get_proxy_alias();
56: if ($alias) {
57: my $lonhost = $r->dir_config('lonHostID');
1.28 raeburn 58: my $hostname = &Apache::lonnet::hostname($lonhost);
59: if (($hdrhost eq $alias) || ($hdrhost eq $hostname)) {
60: my $proxyinfo = &Apache::lonnet::get_proxy_settings($r->dir_config('lonDefDomain'));
1.29 ! raeburn 61: my ($vpnint,$vpnext);
1.28 raeburn 62: if (ref($proxyinfo) eq 'HASH') {
1.29 ! raeburn 63: $vpnint = $proxyinfo->{'vpnint'};
! 64: $vpnext = $proxyinfo->{'vpnext'};
1.28 raeburn 65: }
66: my $redirect;
67: if ($hdrhost eq $alias) {
68: my $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
1.29 ! raeburn 69: if ($vpnext && &Apache::lonnet::ip_match($remote_ip,$vpnext)) {
1.28 raeburn 70: $redirect = $hostname;
71: if ($redirect eq $hdrhost) {
72: undef($redirect);
73: }
74: }
75: } elsif ($hdrhost eq $hostname) {
76: my $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
1.29 ! raeburn 77: unless (($remote_ip eq '127.0.0.1') || ($remote_ip eq '::1') ||
1.28 raeburn 78: ($remote_ip eq &Apache::lonnet::get_host_ip($lonhost)) ||
1.29 ! raeburn 79: ($vpnint && &Apache::lonnet::ip_match($remote_ip,$vpnint))) {
1.28 raeburn 80: $redirect = $alias;
1.27 raeburn 81: if ($r->uri=~m{^/raw/}){
82: my %iphost = &Apache::lonnet::get_iphost();
83: if (exists($iphost{$remote_ip})) {
1.28 raeburn 84: undef($redirect);
1.27 raeburn 85: }
86: }
87: }
88: }
1.28 raeburn 89: if ($redirect) {
90: my $uri = $r->uri;
91: my $protocol = 'http';
92: my $port = $r->get_server_port();
93: if ($port eq '443') {
94: $protocol = 'https';
95: }
96: # FIXME should check if logged in, and if so use switchserver/migrateuser approach,
97: # possibly moved to Access Handler?
98: $r->header_out(Location => $protocol.'://'.$redirect.$uri);
99: return REDIRECT;
100: }
1.27 raeburn 101: }
102: }
1.7 raeburn 103: if ($r->uri=~m|^(/raw)?/uploaded/|) {
104: my $fn = $r->uri();
105: $fn=~s/^\/raw//;
106: my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
1.10 albertel 107: if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
1.7 raeburn 108: my $chome=&Apache::lonnet::homeserver($uname,$udom);
1.9 albertel 109: my $allowed=0;
110: my @ids=&Apache::lonnet::current_machine_ids();
111: foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
112: if ($allowed) {
1.13 albertel 113: $r->filename(&propath($udom,$uname).
114: '/userfiles/'.(join('/',@ufile)));
1.7 raeburn 115: }
1.15 raeburn 116: return OK;
1.26 raeburn 117: } elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
118: my $uri = $r->uri;
119: $uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
120: $r->uri($uri);
1.15 raeburn 121: }
1.26 raeburn 122: return DECLINED;
1.15 raeburn 123: }
124:
125: sub redirect_raw {
126: my ($remote_ip,$lonhost) = @_;
127: my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
128: my $redirect;
129: while (@remhostids) {
130: my $try_server = pop(@remhostids);
131: my $remhostname = &Apache::lonnet::hostname($try_server);
132: if ($remhostname) {
133: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
134: my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
135: if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
136: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
137: if (ref($internet_names) eq 'ARRAY') {
138: my $intdom = &Apache::lonnet::internet_dom($lonhost);
139: unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
140: my $lonhostname = &Apache::lonnet::hostname($lonhost);
141: my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
142: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
143: my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
144: my $replication = $domdefaults{'replication'};
145: if (ref($replication) eq 'HASH') {
146: my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
147: my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
148: my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
149: my $remintdom = &Apache::lonnet::internet_dom($remprimary);
150: if (ref($replication->{'certreq'}) eq 'ARRAY') {
151: if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
1.24 raeburn 152: $redirect = 0;
153: } else {
1.15 raeburn 154: $redirect = 1;
155: }
156: }
157: if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
158: if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
1.24 raeburn 159: $redirect = 1;
160: } else {
1.15 raeburn 161: $redirect = 0;
162: }
163: }
164: }
165: }
166: }
167: }
168: last;
169: }
170: }
1.24 raeburn 171: return $redirect;
1.1 www 172: }
173:
174: 1;
175: __END__
176:
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