Annotation of loncom/lontrans.pm, revision 1.34
1.1 www 1: # The LearningOnline Network
2: # URL translation for User Files
3: #
1.34 ! raeburn 4: # $Id: lontrans.pm,v 1.33 2021/07/17 21:48:27 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);
1.34 ! raeburn 70: if (($vpnext && &Apache::lonnet::ip_match($remote_ip,$vpnext)) &&
! 71: ($r->uri !~ m{^/adm/(lti|launch)/})) {
1.28 raeburn 72: $redirect = $hostname;
73: if ($redirect eq $hdrhost) {
74: undef($redirect);
75: }
76: }
77: } elsif ($hdrhost eq $hostname) {
1.30 raeburn 78: $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
1.29 raeburn 79: unless (($remote_ip eq '127.0.0.1') || ($remote_ip eq '::1') ||
1.28 raeburn 80: ($remote_ip eq &Apache::lonnet::get_host_ip($lonhost)) ||
1.34 ! raeburn 81: ($r->uri=~m{^/adm/(lti|launch)/}) ||
1.29 raeburn 82: ($vpnint && &Apache::lonnet::ip_match($remote_ip,$vpnint))) {
1.28 raeburn 83: $redirect = $alias;
1.34 ! raeburn 84: if (($r->uri=~m{^/raw/}) || ($r->uri=~m{^/adm/dns/})) {
1.27 raeburn 85: my %iphost = &Apache::lonnet::get_iphost();
86: if (exists($iphost{$remote_ip})) {
1.28 raeburn 87: undef($redirect);
1.27 raeburn 88: }
89: }
90: }
91: }
1.28 raeburn 92: if ($redirect) {
93: my $uri = $r->uri;
1.32 raeburn 94: if (($uri eq '/adm/sso') || ($uri eq '/adm/switchserver') ||
95: ($uri =~ m{^/Shibboleth.sso/})) {
96: return DECLINED;
97: }
1.30 raeburn 98: unless ($uri eq '/adm/migrateuser') {
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: my $token = &get_token($r,$remote_ip,\%user);
103: unless ($token eq '') {
104: $r->internal_redirect("/adm/migrateuser?token=$token");
105: $r->set_handlers('PerlHandler'=> undef);
106: return DECLINED;
107: }
108: }
109: }
1.28 raeburn 110: my $protocol = 'http';
111: my $port = $r->get_server_port();
112: if ($port eq '443') {
113: $protocol = 'https';
114: }
1.30 raeburn 115: my $querystring = $r->args;
1.33 raeburn 116: if ($uri =~ m{^(/adm/css/)(.+)(.css)$}) {
117: $uri = $1.&escape($2).$3;
118: }
1.30 raeburn 119: my $location = $protocol.'://'.$redirect.$uri;
120: if ($querystring) {
121: $location .= "?$querystring";
122: }
123: $r->header_out(Location => $location);
1.28 raeburn 124: return REDIRECT;
125: }
1.27 raeburn 126: }
127: }
1.7 raeburn 128: if ($r->uri=~m|^(/raw)?/uploaded/|) {
129: my $fn = $r->uri();
130: $fn=~s/^\/raw//;
131: my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
1.10 albertel 132: if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
1.7 raeburn 133: my $chome=&Apache::lonnet::homeserver($uname,$udom);
1.9 albertel 134: my $allowed=0;
135: my @ids=&Apache::lonnet::current_machine_ids();
136: foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
137: if ($allowed) {
1.13 albertel 138: $r->filename(&propath($udom,$uname).
139: '/userfiles/'.(join('/',@ufile)));
1.7 raeburn 140: }
1.15 raeburn 141: return OK;
1.26 raeburn 142: } elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
143: my $uri = $r->uri;
144: $uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
145: $r->uri($uri);
1.15 raeburn 146: }
1.26 raeburn 147: return DECLINED;
1.15 raeburn 148: }
149:
150: sub redirect_raw {
151: my ($remote_ip,$lonhost) = @_;
152: my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
153: my $redirect;
154: while (@remhostids) {
155: my $try_server = pop(@remhostids);
156: my $remhostname = &Apache::lonnet::hostname($try_server);
157: if ($remhostname) {
158: my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
159: my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
160: if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
161: my $internet_names = &Apache::lonnet::get_internet_names($try_server);
162: if (ref($internet_names) eq 'ARRAY') {
163: my $intdom = &Apache::lonnet::internet_dom($lonhost);
164: unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
165: my $lonhostname = &Apache::lonnet::hostname($lonhost);
166: my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
167: my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
168: my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
169: my $replication = $domdefaults{'replication'};
170: if (ref($replication) eq 'HASH') {
171: my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
172: my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
173: my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
174: my $remintdom = &Apache::lonnet::internet_dom($remprimary);
175: if (ref($replication->{'certreq'}) eq 'ARRAY') {
176: if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
1.24 raeburn 177: $redirect = 0;
178: } else {
1.15 raeburn 179: $redirect = 1;
180: }
181: }
182: if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
183: if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
1.24 raeburn 184: $redirect = 1;
185: } else {
1.15 raeburn 186: $redirect = 0;
187: }
188: }
189: }
190: }
191: }
192: }
193: last;
194: }
195: }
1.24 raeburn 196: return $redirect;
1.1 www 197: }
198:
1.30 raeburn 199: sub get_token {
200: my ($r,$remote_ip,$userref) = @_;
201: return unless (ref($userref) eq 'HASH');
202: my %user = %{$userref};
203: my %info = ('ip' => $remote_ip,
204: 'domain' => $user{'domain'},
205: 'username' => $user{'name'},
206: 'server' => $r->dir_config('lonHostID'),
207: );
208: my $query = $r->args;
209: if ($query) {
210: foreach my $pair (split(/&/,$query)) {
211: my ($name,$value) = split(/=/,$pair);
212: $name = &LONCAPA::unescape($name);
213: next unless (($name eq 'role') || ($name eq 'symb'));
214: $value =~ tr/+/ /;
215: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
216: $info{$name} = $value;
217: }
218: }
219: unless ($info{'role'}) {
220: if ($user{'role'} ne '') {
221: $info{'role'} = $user{'role'};
222: }
223: }
224: unless ($info{'symb'}) {
225: unless ($r->uri eq '/adm/roles') {
226: $info{'origurl'} = $r->uri;
227: }
228: }
229: my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'));
230: unless (($token eq 'con_lost') || ($token eq 'refused') ||
231: ($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
232: return $token;
233: }
234: return;
235: }
236:
1.1 www 237: 1;
238: __END__
239:
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