--- loncom/lontrans.pm 2003/11/12 21:37:07 1.6 +++ loncom/lontrans.pm 2022/01/05 00:51:20 1.14.10.2.2.2 @@ -1,7 +1,7 @@ # The LearningOnline Network # URL translation for User Files # -# $Id: lontrans.pm,v 1.6 2003/11/12 21:37:07 albertel Exp $ +# $Id: lontrans.pm,v 1.14.10.2.2.2 2022/01/05 00:51:20 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -30,33 +30,218 @@ package Apache::lontrans; use strict; use Apache::Constants qw(:common :remotehost); -use Apache::lonnet(); -use Apache::File(); +use Apache::lonnet; use Apache::loncommon; +use Apache::File(); +use LONCAPA qw(:DEFAULT :match); sub handler { my $r = shift; - if ($r->uri=~m|^/uploaded/|) { - my (undef,undef,$udom,$uname,$ufile)=split(/\//,$r->uri); - $ufile=~s/^[\~\.]+//; - $r->filename(&Apache::loncommon::propath($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; } - return OK; + # 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,$vpnext)) && + ($r->uri !~ m{^/adm/(lti|launch)/})) { + $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)) || + ($r->uri=~m{^/adm/(lti|launch)/}) || + ($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 $ssourl) { + unless (&Apache::lonnet::alias_sso($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->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 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__ - - - - - -