--- loncom/lontrans.pm 2002/09/30 20:32:45 1.3
+++ loncom/lontrans.pm 2021/11/03 01:04:03 1.37
@@ -1,7 +1,7 @@
# The LearningOnline Network
# URL translation for User Files
#
-# $Id: lontrans.pm,v 1.3 2002/09/30 20:32:45 albertel Exp $
+# $Id: lontrans.pm,v 1.37 2021/11/03 01:04:03 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -30,41 +30,276 @@ package Apache::lontrans;
use strict;
use Apache::Constants qw(:common :remotehost);
-use Apache::lonnet();
+use Apache::lonnet;
+use Apache::loncommon;
use Apache::File();
+use LONCAPA qw(:DEFAULT :match);
-sub propath {
- my ($udom,$uname)=@_;
- $udom=~s/\W//g;
- $uname=~s/\W//g;
- my $subdir=$uname.'__';
- $subdir =~ s/(.)(.)(.).*/$1\/$2\/$3/;
- my $proname="$Apache::lonnet::perlvar{'lonUsersDir'}/$udom/$subdir/$uname";
- return $proname;
+sub handler {
+ my $r = shift;
+ # FIXME line remove when mod_perl fixes BUG#4948
+ $r->notes->set('error-notes' => '');
+ my $hdrhost = $r->headers_in->get('Host');
+ if ($r->uri=~m{^/raw/}) {
+ if ($hdrhost) {
+ unless ($hdrhost =~ /^internal\-/) {
+ my $remote_ip = &Apache::lonnet::get_requestor_ip($r,REMOTE_NOLOOKUP,1);
+ my $lonhost = $r->dir_config('lonHostID');
+ if (&redirect_raw($remote_ip,$lonhost)) {
+ my $location = 'https://internal-'.$hdrhost.$r->uri;
+ $r->headers_out->set(Location => $location);
+ return REDIRECT;
+ }
+ }
+ }
+ }
+ my $alias = &Apache::lonnet::get_proxy_alias();
+ if ($alias) {
+ my $lonhost = $r->dir_config('lonHostID');
+ my $hostname = &Apache::lonnet::hostname($lonhost);
+ 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,$vpnext)) &&
+ ($r->uri !~ m{^/adm/(lti|launch)/})) {
+ $redirect = $hostname;
+ }
+ if ($r->uri eq '/adm/sso') {
+ if (&Apache::lonnet::alias_shibboleth($lonhost)) {
+ undef($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)) ||
+ ($r->uri=~m{^/adm/(lti|launch)/}) ||
+ ($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 ($r->uri eq '/adm/sso') {
+ unless (&Apache::lonnet::alias_shibboleth($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 '/adm/sso')) {
+ 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->uri =~ m{^/tiny/$match_domain/\w+$}) {
+ my $token = &set_token($r,$r->uri);
+ unless ($token eq '') {
+ $location .= '?ttoken='.$token;
+ }
+ } elsif ($r->args) {
+ $location .= '?'.$r->args;
+ }
+ $r->header_out(Location => $location);
+ return REDIRECT;
+ }
+ }
+ }
+ if ($r->uri =~ m{^/tiny/$match_domain/\w+$}) {
+ my $token = &set_token($r,$r->uri);
+ unless ($token eq '') {
+ $r->args('ttoken='.$token);
+ }
+ }
+ 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 redirect_raw {
+ my ($remote_ip,$lonhost) = @_;
+ my @remhostids = &Apache::lonnet::get_hosts_from_ip($remote_ip);
+ my $redirect;
+ while (@remhostids) {
+ my $try_server = pop(@remhostids);
+ my $remhostname = &Apache::lonnet::hostname($try_server);
+ if ($remhostname) {
+ my $remoterev = &Apache::lonnet::get_server_loncaparev(undef,$try_server);
+ my ($remmajor,$remminor) = ($remoterev =~ /^(\d+)\.(\d+)/);
+ if (($remmajor > 2) || (($remmajor == 2) && $remminor >= 12)) {
+ my $internet_names = &Apache::lonnet::get_internet_names($try_server);
+ if (ref($internet_names) eq 'ARRAY') {
+ my $intdom = &Apache::lonnet::internet_dom($lonhost);
+ unless (grep(/^\Q$intdom\E$/,@{$internet_names})) {
+ my $lonhostname = &Apache::lonnet::hostname($lonhost);
+ my $serverhomeID = &Apache::lonnet::get_server_homeID($lonhostname);
+ my $serverhomedom = &Apache::lonnet::host_domain($serverhomeID);
+ my %domdefaults = &Apache::lonnet::get_domain_defaults($serverhomedom);
+ my $replication = $domdefaults{'replication'};
+ if (ref($replication) eq 'HASH') {
+ my $remhomeID = &Apache::lonnet::get_server_homeID($remhostname);
+ my $remhomedom = &Apache::lonnet::host_domain($remhomeID);
+ my $remprimary = &Apache::lonnet::domain($remhomedom,'primary');
+ my $remintdom = &Apache::lonnet::internet_dom($remprimary);
+ if (ref($replication->{'certreq'}) eq 'ARRAY') {
+ if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) {
+ $redirect = 0;
+ } else {
+ $redirect = 1;
+ }
+ }
+ if (ref($replication->{'nocertreq'}) eq 'ARRAY') {
+ if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) {
+ $redirect = 1;
+ } else {
+ $redirect = 0;
+ }
+ }
+ }
+ }
+ }
+ }
+ last;
+ }
+ }
+ return $redirect;
+}
-sub handler {
- my $r = shift;
- if ($r->uri=~m|^/uploaded/|) {
- my ($dum1,$dum2,$udom,$uname,$ufile)=split(/\//,$r->uri);
- $ufile=~s/^[\~\.]+//;
- $r->filename(&propath($udom,$uname).'/userfiles/'.$ufile);
- } elsif ($r->uri=~m|^/~|) {
- #internal authentication, needs fixup.
- my $fn = $r->uri(); # non users do not get the full path request
- # through SCRIPT_FILENAME
- $fn=~s|^/~(\w+)|/home/$1/public_html|;
- $r->filename($fn);
- } else { 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') ||
+ ($name eq 'ltoken') || ($name eq 'linkkey') ||
+ ($name eq 'ttoken'));
+ $value =~ tr/+/ /;
+ $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
+ $info{$name} = $value;
+ }
+ if ($info{'ttoken'}) {
+ my %current = &Apache::lonnet::tmpget($info{'ttoken'});
+ delete($info{'ttoken'});
+ if ($current{'origurl'} eq $r->uri) {
+ return if (keys(%current));
+ }
+ }
+ }
+#
+# To be able to support deep-linking for a shortened URL, i.e.,
+# /tiny/$dom/$id with (a) linkkey included in POSTed data and
+# data and (b) non-Shibboleth SSO in use, ltoken (or linkprot
+# if sending to /adm/migrateuser), or linkkey are written to a
+# .tmp file in /home/httpd/perl/tmp and the query string is
+# replaced with ttoken=tokenid. This does mean other POSTed
+# data will be discarded.
+#
+ if ($r->uri =~ m{^/tiny/$match_domain/\w+$}) {
+ unless (($info{'ltoken'}) || ($info{'linkkey'} ne '')) {
+ &Apache::lonacc::get_posted_cgi($r,['linkkey']);
+ if ($env{'form.linkkey'} ne '') {
+ $info{'linkkey'} = $env{'form.linkkey'};
+ }
+ }
+ }
+ if ($dest eq '/adm/migrateuser') {
+ if ($info{'ltoken'}) {
+ my %link_info = &Apache::lonnet::tmpget($info{'ltoken'});
+ if ($link_info{'linkprot'}) {
+ $info{'linkprot'} = $link_info{'linkprot'};
+ }
+ &Apache::lonnet::tmpdel($info{'ltoken'});;
+ delete($info{'ltoken'});
+ }
+ unless ($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__
-
-
-
-
-
-
500 Internal Server Error
Internal Server Error
The server encountered an internal error or
misconfiguration and was unable to complete
your request.
Please contact the server administrator at
root@localhost to inform them of the time this error occurred,
and the actions you performed just before this error.
More information about this error may be available
in the server error log.