Annotation of loncom/lontrans.pm, revision 1.32
1.1 www 1: # The LearningOnline Network
2: # URL translation for User Files
3: #
1.32 ! raeburn 4: # $Id: lontrans.pm,v 1.31 2021/05/03 15:27:42 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;
1.30 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 = $r->uri;
1.32 ! raeburn 92: if (($uri eq '/adm/sso') || ($uri eq '/adm/switchserver') ||
! 93: ($uri =~ m{^/Shibboleth.sso/})) {
! 94: return DECLINED;
! 95: }
1.30 raeburn 96: unless ($uri eq '/adm/migrateuser') {
97: my %user;
98: my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
99: if (($handle) && ($user{'name'} ne '') && ($user{'domain'} ne '')) {
100: my $token = &get_token($r,$remote_ip,\%user);
101: unless ($token eq '') {
102: $r->internal_redirect("/adm/migrateuser?token=$token");
103: $r->set_handlers('PerlHandler'=> undef);
104: return DECLINED;
105: }
106: }
107: }
1.28 raeburn 108: my $protocol = 'http';
109: my $port = $r->get_server_port();
110: if ($port eq '443') {
111: $protocol = 'https';
112: }
1.30 raeburn 113: my $querystring = $r->args;
114: my $location = $protocol.'://'.$redirect.$uri;
115: if ($querystring) {
116: $location .= "?$querystring";
117: }
118: $r->header_out(Location => $location);
1.28 raeburn 119: return REDIRECT;
120: }
1.27 raeburn 121: }
122: }
1.7 raeburn 123: if ($r->uri=~m|^(/raw)?/uploaded/|) {
124: my $fn = $r->uri();
125: $fn=~s/^\/raw//;
126: my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
1.10 albertel 127: if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
1.7 raeburn 128: my $chome=&Apache::lonnet::homeserver($uname,$udom);
1.9 albertel 129: my $allowed=0;
130: my @ids=&Apache::lonnet::current_machine_ids();
131: foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
132: if ($allowed) {
1.13 albertel 133: $r->filename(&propath($udom,$uname).
134: '/userfiles/'.(join('/',@ufile)));
1.7 raeburn 135: }
1.15 raeburn 136: return OK;
1.26 raeburn 137: } elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
138: my $uri = $r->uri;
139: $uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
140: $r->uri($uri);
1.15 raeburn 141: }
1.26 raeburn 142: return DECLINED;
1.15 raeburn 143: }
144:
145: sub redirect_raw {
146: my ($remote_ip,$lonhost) = @_;
147: my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
148: my $redirect;
149: while (@remhostids) {
150: my $try_server = pop(@remhostids);
151: my $remhostname = &Apache::lonnet::hostname($try_server);
152: if ($remhostname) {
153: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
154: my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
155: if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
156: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
157: if (ref($internet_names) eq 'ARRAY') {
158: my $intdom = &Apache::lonnet::internet_dom($lonhost);
159: unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
160: my $lonhostname = &Apache::lonnet::hostname($lonhost);
161: my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
162: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
163: my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
164: my $replication = $domdefaults{'replication'};
165: if (ref($replication) eq 'HASH') {
166: my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
167: my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
168: my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
169: my $remintdom = &Apache::lonnet::internet_dom($remprimary);
170: if (ref($replication->{'certreq'}) eq 'ARRAY') {
171: if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
1.24 raeburn 172: $redirect = 0;
173: } else {
1.15 raeburn 174: $redirect = 1;
175: }
176: }
177: if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
178: if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
1.24 raeburn 179: $redirect = 1;
180: } else {
1.15 raeburn 181: $redirect = 0;
182: }
183: }
184: }
185: }
186: }
187: }
188: last;
189: }
190: }
1.24 raeburn 191: return $redirect;
1.1 www 192: }
193:
1.30 raeburn 194: sub get_token {
195: my ($r,$remote_ip,$userref) = @_;
196: return unless (ref($userref) eq 'HASH');
197: my %user = %{$userref};
198: my %info = ('ip' => $remote_ip,
199: 'domain' => $user{'domain'},
200: 'username' => $user{'name'},
201: 'server' => $r->dir_config('lonHostID'),
202: );
203: my $query = $r->args;
204: if ($query) {
205: foreach my $pair (split(/&/,$query)) {
206: my ($name,$value) = split(/=/,$pair);
207: $name = &LONCAPA::unescape($name);
208: next unless (($name eq 'role') || ($name eq 'symb'));
209: $value =~ tr/+/ /;
210: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
211: $info{$name} = $value;
212: }
213: }
214: unless ($info{'role'}) {
215: if ($user{'role'} ne '') {
216: $info{'role'} = $user{'role'};
217: }
218: }
219: unless ($info{'symb'}) {
220: unless ($r->uri eq '/adm/roles') {
221: $info{'origurl'} = $r->uri;
222: }
223: }
224: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'));
225: unless (($token eq 'con_lost') || ($token eq 'refused') ||
226: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
227: return $token;
228: }
229: return;
230: }
231:
1.1 www 232: 1;
233: __END__
234:
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