Annotation of loncom/lontrans.pm, revision 1.31
1.1 www 1: # The LearningOnline Network
2: # URL translation for User Files
3: #
1.31 ! raeburn 4: # $Id: lontrans.pm,v 1.30 2021/04/18 02:08:46 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;
1.30 raeburn 32: use Apache::Constants qw(:common :remotehost);
1.18 raeburn 33: use Apache::lonnet;
1.30 raeburn 34: use Apache::loncommon;
1.1 www 35: use Apache::File();
1.15 raeburn 36: use LONCAPA qw(:DEFAULT :match);
1.2 www 37:
1.1 www 38: sub handler {
39: my $r = shift;
1.25 raeburn 40: # FIXME line remove when mod_perl fixes BUG#4948
1.12 albertel 41: $r->notes->set('error-notes' => '');
1.28 raeburn 42: my $hdrhost = $r->headers_in->get('Host');
1.25 raeburn 43: if ($r->uri=~m{^/raw/}) {
1.28 raeburn 44: if ($hdrhost) {
45: unless ($hdrhost =~ /^internal\-/) {
1.27 raeburn 46: my $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
1.16 raeburn 47: my $lonhost = $r->dir_config('lonHostID');
48: if (&redirect_raw($remote_ip,$lonhost)) {
1.28 raeburn 49: my $location = 'https://internal-'.$hdrhost.$r->uri;
1.16 raeburn 50: $r->headers_out->set(Location => $location);
51: return REDIRECT;
1.15 raeburn 52: }
53: }
54: }
55: }
1.27 raeburn 56: my $alias = &Apache::lonnet::get_proxy_alias();
57: if ($alias) {
58: my $lonhost = $r->dir_config('lonHostID');
1.28 raeburn 59: my $hostname = &Apache::lonnet::hostname($lonhost);
60: if (($hdrhost eq $alias) || ($hdrhost eq $hostname)) {
61: my $proxyinfo = &Apache::lonnet::get_proxy_settings($r->dir_config('lonDefDomain'));
1.29 raeburn 62: my ($vpnint,$vpnext);
1.28 raeburn 63: if (ref($proxyinfo) eq 'HASH') {
1.29 raeburn 64: $vpnint = $proxyinfo->{'vpnint'};
65: $vpnext = $proxyinfo->{'vpnext'};
1.28 raeburn 66: }
1.30 raeburn 67: my ($redirect,$remote_ip);
1.28 raeburn 68: if ($hdrhost eq $alias) {
1.30 raeburn 69: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
1.29 raeburn 70: if ($vpnext && &Apache::lonnet::ip_match($remote_ip,$vpnext)) {
1.28 raeburn 71: $redirect = $hostname;
72: if ($redirect eq $hdrhost) {
73: undef($redirect);
74: }
75: }
76: } elsif ($hdrhost eq $hostname) {
1.30 raeburn 77: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
1.29 raeburn 78: unless (($remote_ip eq '127.0.0.1') || ($remote_ip eq '::1') ||
1.28 raeburn 79: ($remote_ip eq &Apache::lonnet::get_host_ip($lonhost)) ||
1.29 raeburn 80: ($vpnint && &Apache::lonnet::ip_match($remote_ip,$vpnint))) {
1.28 raeburn 81: $redirect = $alias;
1.31 ! raeburn 82: if (($r->uri=~m{^/raw/}) || ($r->uri=~m{^/adm/dns/(hosts|domain)$})) {
1.27 raeburn 83: my %iphost = &Apache::lonnet::get_iphost();
84: if (exists($iphost{$remote_ip})) {
1.28 raeburn 85: undef($redirect);
1.27 raeburn 86: }
87: }
88: }
89: }
1.28 raeburn 90: if ($redirect) {
91: my $uri = $r->uri;
1.30 raeburn 92: unless ($uri eq '/adm/migrateuser') {
93: my %user;
94: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
95: if (($handle) && ($user{'name'} ne '') && ($user{'domain'} ne '')) {
96: my $token = &get_token($r,$remote_ip,\%user);
97: unless ($token eq '') {
98: $r->internal_redirect("/adm/migrateuser?token=$token");
99: $r->set_handlers('PerlHandler'=> undef);
100: return DECLINED;
101: }
102: }
103: }
1.28 raeburn 104: my $protocol = 'http';
105: my $port = $r->get_server_port();
106: if ($port eq '443') {
107: $protocol = 'https';
108: }
1.30 raeburn 109: my $querystring = $r->args;
110: my $location = $protocol.'://'.$redirect.$uri;
111: if ($querystring) {
112: $location .= "?$querystring";
113: }
114: $r->header_out(Location => $location);
1.28 raeburn 115: return REDIRECT;
116: }
1.27 raeburn 117: }
118: }
1.7 raeburn 119: if ($r->uri=~m|^(/raw)?/uploaded/|) {
120: my $fn = $r->uri();
121: $fn=~s/^\/raw//;
122: my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
1.10 albertel 123: if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
1.7 raeburn 124: my $chome=&Apache::lonnet::homeserver($uname,$udom);
1.9 albertel 125: my $allowed=0;
126: my @ids=&Apache::lonnet::current_machine_ids();
127: foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
128: if ($allowed) {
1.13 albertel 129: $r->filename(&propath($udom,$uname).
130: '/userfiles/'.(join('/',@ufile)));
1.7 raeburn 131: }
1.15 raeburn 132: return OK;
1.26 raeburn 133: } elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
134: my $uri = $r->uri;
135: $uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
136: $r->uri($uri);
1.15 raeburn 137: }
1.26 raeburn 138: return DECLINED;
1.15 raeburn 139: }
140:
141: sub redirect_raw {
142: my ($remote_ip,$lonhost) = @_;
143: my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
144: my $redirect;
145: while (@remhostids) {
146: my $try_server = pop(@remhostids);
147: my $remhostname = &Apache::lonnet::hostname($try_server);
148: if ($remhostname) {
149: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
150: my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
151: if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
152: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
153: if (ref($internet_names) eq 'ARRAY') {
154: my $intdom = &Apache::lonnet::internet_dom($lonhost);
155: unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
156: my $lonhostname = &Apache::lonnet::hostname($lonhost);
157: my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
158: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
159: my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
160: my $replication = $domdefaults{'replication'};
161: if (ref($replication) eq 'HASH') {
162: my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
163: my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
164: my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
165: my $remintdom = &Apache::lonnet::internet_dom($remprimary);
166: if (ref($replication->{'certreq'}) eq 'ARRAY') {
167: if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
1.24 raeburn 168: $redirect = 0;
169: } else {
1.15 raeburn 170: $redirect = 1;
171: }
172: }
173: if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
174: if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
1.24 raeburn 175: $redirect = 1;
176: } else {
1.15 raeburn 177: $redirect = 0;
178: }
179: }
180: }
181: }
182: }
183: }
184: last;
185: }
186: }
1.24 raeburn 187: return $redirect;
1.1 www 188: }
189:
1.30 raeburn 190: sub get_token {
191: my ($r,$remote_ip,$userref) = @_;
192: return unless (ref($userref) eq 'HASH');
193: my %user = %{$userref};
194: my %info = ('ip' => $remote_ip,
195: 'domain' => $user{'domain'},
196: 'username' => $user{'name'},
197: 'server' => $r->dir_config('lonHostID'),
198: );
199: my $query = $r->args;
200: if ($query) {
201: foreach my $pair (split(/&/,$query)) {
202: my ($name,$value) = split(/=/,$pair);
203: $name = &LONCAPA::unescape($name);
204: next unless (($name eq 'role') || ($name eq 'symb'));
205: $value =~ tr/+/ /;
206: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
207: $info{$name} = $value;
208: }
209: }
210: unless ($info{'role'}) {
211: if ($user{'role'} ne '') {
212: $info{'role'} = $user{'role'};
213: }
214: }
215: unless ($info{'symb'}) {
216: unless ($r->uri eq '/adm/roles') {
217: $info{'origurl'} = $r->uri;
218: }
219: }
220: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'));
221: unless (($token eq 'con_lost') || ($token eq 'refused') ||
222: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
223: return $token;
224: }
225: return;
226: }
227:
1.1 www 228: 1;
229: __END__
230:
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