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, 8 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,
colored
- 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
# The LearningOnline Network
# URL translation for User Files
#
# $Id: lontrans.pm,v 1.14.10.2 2021/12/14 20:59:19 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
package Apache::lontrans;
use strict;
use Apache::Constants qw(:common :remotehost);
use Apache::lonnet();
use Apache::loncommon;
use Apache::File();
use LONCAPA;
sub handler {
my $r = shift;
# FIXME line remove when mod_perl fixes BUG#4948
$r->notes->set('error-notes' => '');
my $alias = &Apache::lonnet::get_proxy_alias();
if ($alias) {
my $hdrhost = $r->headers_in->get('Host');
my $lonhost = $r->dir_config('lonHostID');
my $hostname = &Apache::lonnet::hostname($lonhost);
my $ssourl = '/adm/sso';
if ($r->dir_config('lonOtherAuthenUrl') ne '') {
$ssourl = $r->dir_config('lonOtherAuthenUrl');
}
if (($hdrhost eq $alias) || ($hdrhost eq $hostname)) {
my $proxyinfo = &Apache::lonnet::get_proxy_settings($r->dir_config('lonDefDomain'));
my ($vpnint,$vpnext);
if (ref($proxyinfo) eq 'HASH') {
$vpnint = $proxyinfo->{'vpnint'};
$vpnext = $proxyinfo->{'vpnext'};
}
my ($redirect,$remote_ip);
if ($hdrhost eq $alias) {
$remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP);
if (($vpnext && &Apache::lonnet::ip_match($remote_ip,$vpnext))) {
$redirect = $hostname;
}
if ($r->uri eq $ssourl) {
if (&Apache::lonnet::alias_sso($lonhost)) {
undef($redirect);
} else {
$redirect = $hostname;
}
}
if ($redirect eq $hdrhost) {
undef($redirect);
}
} elsif ($hdrhost eq $hostname) {
$remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
unless (($remote_ip eq '127.0.0.1') || ($remote_ip eq '::1') ||
($remote_ip eq &Apache::lonnet::get_host_ip($lonhost)) ||
($vpnint && &Apache::lonnet::ip_match($remote_ip,$vpnint))) {
$redirect = $alias;
if (($r->uri=~m{^/raw/}) || ($r->uri=~m{^/adm/dns/})) {
my %iphost = &Apache::lonnet::get_iphost();
if (exists($iphost{$remote_ip})) {
undef($redirect);
}
} elsif ($r->uri eq $ssourl) {
unless (&Apache::lonnet::alias_sso($lonhost)) {
undef($redirect);
}
}
}
}
if ($redirect) {
my $uri = $r->uri;
if (($uri eq '/adm/switchserver') || ($uri =~ m{^/Shibboleth.sso/})) {
return DECLINED;
}
unless (($uri eq '/adm/migrateuser') || ($uri eq $ssourl)) {
my %user;
my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user);
if (($handle) && ($user{'name'} ne '') && ($user{'domain'} ne '')) {
unless (($user{'name'} eq 'public') && ($user{'domain'} eq 'public')) {
my $dest = '/adm/migrateuser';
my $token = &set_token($r,$dest,$remote_ip,\%user);
unless ($token eq '') {
$r->internal_redirect("$dest?token=$token");
$r->set_handlers('PerlHandler'=> undef);
return DECLINED;
}
}
}
}
my $protocol = 'http';
my $port = $r->get_server_port();
if ($port eq '443') {
$protocol = 'https';
}
if ($uri =~ m{^(/adm/css/)(.+)(.css)$}) {
$uri = $1.&escape($2).$3;
}
my $location = $protocol.'://'.$redirect.$uri;
if ($r->args) {
$location .= '?'.$r->args;
}
$r->header_out(Location => $location);
return REDIRECT;
}
}
}
if ($r->uri=~m|^(/raw)?/uploaded/|) {
my $fn = $r->uri();
$fn=~s/^\/raw//;
my (undef,undef,$udom,$uname,@ufile)=split(/\//,$fn);
if (@ufile) { $ufile[-1]=~s/^[\~\.]+//; }
my $chome=&Apache::lonnet::homeserver($uname,$udom);
my $allowed=0;
my @ids=&Apache::lonnet::current_machine_ids();
foreach my $id (@ids) { if ($id eq $chome) { $allowed=1; } }
if ($allowed) {
$r->filename(&propath($udom,$uname).
'/userfiles/'.(join('/',@ufile)));
}
return OK;
} elsif ($r->uri =~ m{^\Q/adm/wrapper/ext/https:/\E[^/]}) {
my $uri = $r->uri;
$uri =~ s{^(\Q/adm/wrapper/ext/https:/\E)}{$1/};
$r->uri($uri);
}
return DECLINED;
}
sub set_token {
my ($r,$dest,$remote_ip,$userref) = @_;
my (%info,%user);
if ($dest eq '/adm/migrateuser') {
return unless (ref($userref) eq 'HASH');
%user = %{$userref};
%info = ('ip' => $remote_ip,
'domain' => $user{'domain'},
'username' => $user{'name'},
'server' => $r->dir_config('lonHostID'),
);
}
if ($r->args) {
foreach my $pair (split(/&/,$r->args)) {
my ($name,$value) = split(/=/,$pair);
$name = &LONCAPA::unescape($name);
next unless (($name eq 'role') || ($name eq 'symb'));
$value =~ tr/+/ /;
$value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
$info{$name} = $value;
}
}
if ($dest eq '/adm/migrateuser') {
unless ($info{'role'}) {
if ($user{'role'} ne '') {
$info{'role'} = $user{'role'};
}
}
unless ($info{'symb'}) {
unless ($r->uri eq '/adm/roles') {
$info{'origurl'} = $r->uri;
}
}
}
if (($dest eq '/adm/migrateuser') || (keys(%info) > 0)) {
unless ($dest eq '/adm/migrateuser') {
$info{'origurl'} = $r->uri;
}
my $token = &Apache::lonnet::tmpput(\%info,$r->dir_config('lonHostID'),'link');
unless (($token eq 'con_lost') || ($token eq 'refused') ||
($token eq 'unknown_cmd') || ($token eq 'no_such_host')) {
return $token;
}
}
return;
}
1;
__END__
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