--- loncom/lontrans.pm 2018/01/13 18:58:33 1.19 +++ loncom/lontrans.pm 2023/06/02 01:20:28 1.41 @@ -1,7 +1,7 @@ # The LearningOnline Network # URL translation for User Files # -# $Id: lontrans.pm,v 1.19 2018/01/13 18:58:33 raeburn Exp $ +# $Id: lontrans.pm,v 1.41 2023/06/02 01:20:28 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -29,127 +29,133 @@ package Apache::lontrans; use strict; -use Apache::Constants qw(:common :remotehost REDIRECT :http); +use Apache::Constants qw(:common :remotehost); use Apache::lonnet; +use Apache::loncommon; use Apache::File(); use LONCAPA qw(:DEFAULT :match); sub handler { my $r = shift; - # FIXME line remove when mod_perl fixes BUG#4948 + # FIXME line remove when mod_perl fixes BUG#4948 $r->notes->set('error-notes' => ''); - if ($r->uri =~ m{^/adm/lti/(.+)$}) { - my $realuri = $1; - my %user; - my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user); - if (($handle ne '') && ($user{'lti'})) { - if ($realuri =~ m{^uploaded/$match_domain/$match_courseid/(default|supplemental)(|_\d+)\.(?:sequence|page)___\d+___.+$}) { - my ($map,$resid,$url) = split(/___/,$realuri); - $realuri = &Apache::lonnet::clutter($url).'?symb='.$realuri; - } elsif ($realuri =~ m{^tiny/$match_domain/\w+$}) { - $realuri = '/'.$realuri; - } elsif ($realuri =~ m{($match_domain)/($match_courseid)$}) { - $realuri = '/adm/navmaps'; - } else { - $realuri = '/'.$realuri; - if ($realuri =~ m{/default_\d+\.sequence$}) { - $realuri .= (($realuri =~/\?/)?'&':'?').'navmap=1'; - } - } - my $host = $r->headers_in->get('Host'); - if ($host) { - my $protocol = 'http'; - if ($r->get_server_port == 443) { - $protocol = 'https'; + my $hdrhost = $r->headers_in->get('Host'); + if (($r->uri eq '/adm/service/passback') || + ($r->uri eq '/adm/service/roster')) { + return OK; + } + if ($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 $location = $protocol.'://'.$host.$realuri; - $r->headers_out->set(Location => $location); - return REDIRECT; } } - } elsif ($r->uri =~ m{^/+tiny/+($match_domain)/+(\w+)$}) { - my ($cdom,$key) = ($1,$2); - if (&Apache::lonnet::domain($cdom) ne '') { - my %user; - my $handle = &Apache::lonnet::check_for_valid_session($r,undef,\%user); - if ($handle ne '') { - my $lonidsdir=$r->dir_config('lonIDsDir'); - &Apache::lonnet::transfer_profile_to_env($lonidsdir,$handle); - if ($env{'request.course.id'}) { - my $tinyurl; - my ($result,$cached)=&Apache::lonnet::is_cached_new('tiny',$cdom."\0".$key); - if (defined($cached)) { - $tinyurl = $result; + } + my $alias = &Apache::lonnet::get_proxy_alias(); + if ($alias) { + 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 { - my $configuname = &Apache::lonnet::get_domainconfiguser($cdom); - my %currtiny = &Apache::lonnet::get('tiny',[$key],$cdom,$configuname); - if ($currtiny{$key} ne '') { - $tinyurl = $currtiny{$key}; - &Apache::lonnet::do_cache_new('tiny',$cdom."\0".$key,$currtiny{$key},600); + $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($redirect); } } - if ($tinyurl ne '') { - my ($cnum,$symb) = split(/\&/,$tinyurl); - if (($cnum =~ /^$match_courseid$/) && - (&Apache::lonnet::homeserver($cnum,$cdom) ne 'no_host')) { - if ($env{'request.course.id'} eq $cdom.'_'.$cnum) { - my ($map,$resid,$url) = &Apache::lonnet::decode_symb($symb); - if (&Apache::lonnet::is_on_map($url)) { - my $realuri; - if ((&Apache::lonnet::EXT('resource.0.hiddenresource',$symb) =~ /^yes$/i) && - (!$env{'request.role.adv'})) { - $env{'user.error.msg'}=$r->uri.':bre:1:1:Access to resource denied'; - return HTTP_NOT_ACCEPTABLE; - } - if ((&Apache::lonnet::EXT('resource.0.encrypturl',$symb) =~ /^yes$/i) && - (!$env{'request.role.adv'})) { - $realuri = &Apache::lonenc::encrypted(&Apache::lonnet::clutter($url)); - if (($url =~ /\.sequence$/) && - ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement')) { - $realuri .= '?navmap=1'; - } else { - $realuri .= '?symb='.&Apache::lonenc::encrypted($symb); - } - } else { - $realuri = &Apache::lonnet::clutter($url); - if (($url =~ /\.sequence$/) && - ($env{'course.'.$env{'request.course.id'}.'.type'} ne 'Placement')) { - $realuri .= '?navmap=1'; - } else { - $realuri .= '?symb='.$symb; - } - } - my $host = $r->headers_in->get('Host'); - if ($host) { - my $protocol = 'http'; - if ($r->get_server_port == 443) { - $protocol = 'https'; - } - my $location = $protocol.'://'.$host.$realuri; - $r->headers_out->set(Location => $location); - return REDIRECT; - } - } + } + } + if ($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"); + $r->set_handlers('PerlHandler'=> undef); + return DECLINED; } } } } - } - } - } elsif ($r->uri=~m{^/raw/}) { - my $host = $r->headers_in->get('Host'); - if ($host) { - unless ($host =~ /^internal\-/) { - my $remote_ip = $r->get_remote_host(); - my $lonhost = $r->dir_config('lonHostID'); - if (&redirect_raw($remote_ip,$lonhost)) { - my $location = 'https://internal-'.$host.$r->uri; - $r->headers_out->set(Location => $location); - return REDIRECT; + 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(); $fn=~s/^\/raw//; @@ -164,9 +170,12 @@ sub handler { '/userfiles/'.(join('/',@ufile))); } return OK; - } else { - return DECLINED; + } elsif ($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 { @@ -196,16 +205,16 @@ sub redirect_raw { my $remintdom = &Apache::lonnet::internet_dom($remprimary); if (ref($replication->{'certreq'}) eq 'ARRAY') { if (grep(/^\Q$remintdom\E$/,@{$replication->{'certreq'}})) { - $redirect = 1; - } else { $redirect = 0; + } else { + $redirect = 1; } } if (ref($replication->{'nocertreq'}) eq 'ARRAY') { if (grep(/^\Q$remintdom\E$/,@{$replication->{'nocertreq'}})) { - $redirect = 0; - } else { $redirect = 1; + } else { + $redirect = 0; } } } @@ -215,7 +224,93 @@ sub redirect_raw { last; } } - return $redirect; + return $redirect; +} + +sub set_token { + my ($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'}; + foreach my $item ('linkprotuser','linkprotexit','linkprotpbid','linkprotpburl') { + if ($link_info{$item} ne '') { + $info{$item} = $link_info{$item}; + } + } + } + &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;