33 |
$out->html_header; |
$out->html_header; |
34 |
$out->unset_flush; |
$out->unset_flush; |
35 |
|
|
|
my $input = get_input_document ($http); |
|
|
$out->input ($input); |
|
|
|
|
36 |
require WebHACC::Result; |
require WebHACC::Result; |
37 |
my $result = WebHACC::Result->new; |
my $result = WebHACC::Result->new; |
|
$result->output ($out); |
|
38 |
$result->{conforming_min} = 1; |
$result->{conforming_min} = 1; |
39 |
$result->{conforming_max} = 1; |
$result->{conforming_max} = 1; |
40 |
|
$result->output ($out); |
41 |
|
|
42 |
$out->html ('<script src="../cc-script.js"></script>'); |
require WebHACC::Input; |
43 |
|
my $input = WebHACC::Input->get_document ($http => $result => $out); |
44 |
|
|
45 |
check_and_print ($input => $result => $out); |
check_and_print ($input => $result => $out); |
46 |
|
|
121 |
$out->input ($original_input); |
$out->input ($original_input); |
122 |
} # check_and_print |
} # check_and_print |
123 |
|
|
|
sub get_input_document ($) { |
|
|
my $http = shift; |
|
|
|
|
|
require Message::DOM::DOMImplementation; |
|
|
my $dom = Message::DOM::DOMImplementation->new; |
|
|
|
|
|
require Encode; |
|
|
my $request_uri = Encode::decode ('utf-8', $http->get_parameter ('uri')); |
|
|
my $r = WebHACC::Input->new; |
|
|
if (defined $request_uri and length $request_uri) { |
|
|
my $uri = $dom->create_uri_reference ($request_uri); |
|
|
unless ({ |
|
|
http => 1, |
|
|
}->{lc $uri->uri_scheme}) { |
|
|
$r = WebHACC::Input::Error->new; |
|
|
$r->{uri} = $request_uri; |
|
|
$r->{request_uri} = $request_uri; |
|
|
$r->{error_status_text} = 'URL scheme not allowed'; |
|
|
} |
|
|
|
|
|
require Message::Util::HostPermit; |
|
|
my $host_permit = new Message::Util::HostPermit; |
|
|
$host_permit->add_rule (<<EOH); |
|
|
Allow host=suika port=80 |
|
|
Deny host=suika |
|
|
Allow host=suika.fam.cx port=80 |
|
|
Deny host=suika.fam.cx |
|
|
Deny host=localhost |
|
|
Deny host=*.localdomain |
|
|
Deny ipv4=0.0.0.0/8 |
|
|
Deny ipv4=10.0.0.0/8 |
|
|
Deny ipv4=127.0.0.0/8 |
|
|
Deny ipv4=169.254.0.0/16 |
|
|
Deny ipv4=172.0.0.0/11 |
|
|
Deny ipv4=192.0.2.0/24 |
|
|
Deny ipv4=192.88.99.0/24 |
|
|
Deny ipv4=192.168.0.0/16 |
|
|
Deny ipv4=198.18.0.0/15 |
|
|
Deny ipv4=224.0.0.0/4 |
|
|
Deny ipv4=255.255.255.255/32 |
|
|
Deny ipv6=0::0/0 |
|
|
Allow host=* |
|
|
EOH |
|
|
unless ($host_permit->check ($uri->uri_host, $uri->uri_port || 80)) { |
|
|
my $r = WebHACC::Input::Error->new; |
|
|
$r->{uri} = $request_uri; |
|
|
$r->{request_uri} = $request_uri; |
|
|
$r->{error_status_text} = 'Connection to the host is forbidden'; |
|
|
return $r; |
|
|
} |
|
|
|
|
|
require LWP::UserAgent; |
|
|
my $ua = WDCC::LWPUA->new; |
|
|
$ua->{wdcc_dom} = $dom; |
|
|
$ua->{wdcc_host_permit} = $host_permit; |
|
|
$ua->agent ('Mozilla'); ## TODO: for now. |
|
|
$ua->parse_head (0); |
|
|
$ua->protocols_allowed ([qw/http/]); |
|
|
$ua->max_size (1000_000); |
|
|
my $req = HTTP::Request->new (GET => $request_uri); |
|
|
$req->header ('Accept-Encoding' => 'identity, *; q=0'); |
|
|
my $res = $ua->request ($req); |
|
|
## TODO: 401 sets |is_success| true. |
|
|
if ($res->is_success or $http->get_parameter ('error-page')) { |
|
|
$r->{base_uri} = $res->base; ## NOTE: It does check |Content-Base|, |Content-Location|, and <base>. ## TODO: Use our own code! |
|
|
$r->{uri} = $res->request->uri; |
|
|
$r->{request_uri} = $request_uri; |
|
|
|
|
|
## TODO: More strict parsing... |
|
|
my $ct = $res->header ('Content-Type'); |
|
|
if (defined $ct and $ct =~ /;\s*charset\s*=\s*"?([^\s;"]+)"?/i) { |
|
|
$r->{charset} = lc $1; |
|
|
$r->{charset} =~ tr/\\//d; |
|
|
$r->{official_charset} = $r->{charset}; |
|
|
} |
|
|
|
|
|
my $input_charset = $http->get_parameter ('charset'); |
|
|
if (defined $input_charset and length $input_charset) { |
|
|
$r->{charset_overridden} |
|
|
= (not defined $r->{charset} or $r->{charset} ne $input_charset); |
|
|
$r->{charset} = $input_charset; |
|
|
} |
|
|
|
|
|
## TODO: Support for HTTP Content-Encoding |
|
|
|
|
|
$r->{s} = ''.$res->content; |
|
|
|
|
|
require Whatpm::ContentType; |
|
|
($r->{official_type}, $r->{media_type}) |
|
|
= Whatpm::ContentType->get_sniffed_type |
|
|
(get_file_head => sub { |
|
|
return substr $r->{s}, 0, shift; |
|
|
}, |
|
|
http_content_type_byte => $ct, |
|
|
has_http_content_encoding => |
|
|
defined $res->header ('Content-Encoding'), |
|
|
supported_image_types => {}); |
|
|
} else { |
|
|
$r->{uri} = $res->request->uri; |
|
|
$r->{request_uri} = $request_uri; |
|
|
$r->{error_status_text} = $res->status_line; |
|
|
} |
|
|
|
|
|
$r->{header_field} = []; |
|
|
$res->scan (sub { |
|
|
push @{$r->{header_field}}, [$_[0], $_[1]]; |
|
|
}); |
|
|
$r->{header_status_code} = $res->code; |
|
|
$r->{header_status_text} = $res->message; |
|
|
} else { |
|
|
$r->{s} = ''.$http->get_parameter ('s'); |
|
|
$r->{uri} = q<thismessage:/>; |
|
|
$r->{request_uri} = q<thismessage:/>; |
|
|
$r->{base_uri} = q<thismessage:/>; |
|
|
$r->{charset} = ''.$http->get_parameter ('_charset_'); |
|
|
$r->{charset} =~ s/\s+//g; |
|
|
$r->{charset} = 'utf-8' if $r->{charset} eq ''; |
|
|
$r->{official_charset} = $r->{charset}; |
|
|
$r->{header_field} = []; |
|
|
|
|
|
require Whatpm::ContentType; |
|
|
($r->{official_type}, $r->{media_type}) |
|
|
= Whatpm::ContentType->get_sniffed_type |
|
|
(get_file_head => sub { |
|
|
return substr $r->{s}, 0, shift; |
|
|
}, |
|
|
http_content_type_byte => undef, |
|
|
has_http_content_encoding => 0, |
|
|
supported_image_types => {}); |
|
|
} |
|
|
|
|
|
my $input_format = $http->get_parameter ('i'); |
|
|
if (defined $input_format and length $input_format) { |
|
|
$r->{media_type_overridden} |
|
|
= (not defined $r->{media_type} or $input_format ne $r->{media_type}); |
|
|
$r->{media_type} = $input_format; |
|
|
} |
|
|
if (defined $r->{s} and not defined $r->{media_type}) { |
|
|
$r->{media_type} = 'text/html'; |
|
|
$r->{media_type_overridden} = 1; |
|
|
} |
|
|
|
|
|
if ($r->{media_type} eq 'text/xml') { |
|
|
unless (defined $r->{charset}) { |
|
|
$r->{charset} = 'us-ascii'; |
|
|
$r->{official_charset} = $r->{charset}; |
|
|
} elsif ($r->{charset_overridden} and $r->{charset} eq 'us-ascii') { |
|
|
$r->{charset_overridden} = 0; |
|
|
} |
|
|
} |
|
|
|
|
|
if (length $r->{s} > 1000_000) { |
|
|
$r->{error_status_text} = 'Entity-body too large'; |
|
|
delete $r->{s}; |
|
|
return $r; |
|
|
} |
|
|
|
|
|
$r->{inner_html_element} = $http->get_parameter ('e'); |
|
|
|
|
|
return $r; |
|
|
} # get_input_document |
|
|
|
|
|
package WDCC::LWPUA; |
|
|
BEGIN { push our @ISA, 'LWP::UserAgent'; } |
|
|
|
|
|
sub redirect_ok { |
|
|
my $ua = shift; |
|
|
unless ($ua->SUPER::redirect_ok (@_)) { |
|
|
return 0; |
|
|
} |
|
|
|
|
|
my $uris = $_[1]->header ('Location'); |
|
|
return 0 unless $uris; |
|
|
my $uri = $ua->{wdcc_dom}->create_uri_reference ($uris); |
|
|
unless ({ |
|
|
http => 1, |
|
|
}->{lc $uri->uri_scheme}) { |
|
|
return 0; |
|
|
} |
|
|
unless ($ua->{wdcc_host_permit}->check ($uri->uri_host, $uri->uri_port || 80)) { |
|
|
return 0; |
|
|
} |
|
|
return 1; |
|
|
} # redirect_ok |
|
|
|
|
124 |
=head1 AUTHOR |
=head1 AUTHOR |
125 |
|
|
126 |
Wakaba <w@suika.fam.cx>. |
Wakaba <w@suika.fam.cx>. |