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package Mail::DMARC::HTTP; our $VERSION = '1.20211209'; use strict; use warnings; use parent 'Net::Server::HTTP'; use CGI; use Data::Dumper; use File::ShareDir; use IO::Uncompress::Gunzip; use JSON -convert_blessed_universally; use URI; our $report; use Mail::DMARC::PurePerl; my %mimes = ( css => 'text/css', html => 'text/html', js => 'application/javascript', json => 'application/json', ); sub new { my $class = shift; return bless {}, $class; } sub dmarc_httpd { my $self = shift; $report = shift; my $port = $report->config->{http}{port} || 8080; my $ports = $report->config->{https}{port}; my $sslkey = $report->config->{https}{ssl_key}; my $sslcrt = $report->config->{https}{ssl_crt}; Net::Server::HTTP->run( app => sub { &dmarc_dispatch }, port => [$port, (($ports && $sslkey && $sslcrt) ? "$ports/ssl" : ()) ], ipv => '*', # IPv6 if available ($sslkey ? (SSL_key_file => $sslkey) : ()), ($sslcrt ? (SSL_cert_file => $sslcrt) : ()), log_file => 'Sys::Syslog', syslog_ident => 'mail_dmarc', syslog_facility => 'MAIL', ); return; } sub dmarc_dispatch { my $self = shift; # warn Dumper( { CGI->new->Vars } ); my $path = $self->{request_info}{request_path}; if ($path) { warn "path: $path\n"; return report_json_report() if $path eq '/dmarc/json/report'; return report_json_rr() if $path eq '/dmarc/json/row'; return serve_validator() if $path eq '/dmarc/json/validate'; return serve_file($path) if $path =~ /\.(?:js|css|html|gz)$/x; }; return serve_file('/dmarc/index.html'); } sub serve_pretty_error { my $error = shift || 'Sorry, that operation is not supported.'; return print <<"EO_ERROR" Content-Type: text/html <p>$error</p> EO_ERROR ; } sub return_json_error { my ($err) = @_; #warn $err; print JSON->new->utf8->encode( { err => $err } ); # to HTTP client print "\n"; return $err; # to caller } sub serve_validator { my $cgi = shift || CGI->new(); # passed in $cgi for testing my $json = JSON->new->utf8; print $cgi->header("application/json"); my $post = $cgi->param('POSTDATA'); if (!$post) { return return_json_error("missing POST data"); } my ($input, $dmpp, $res); eval { $input = $json->decode( $post ); }; if ($@) { return return_json_error($@); } if (!$input || !ref $input) { return return_json_error("invalid request $post"); } eval { $dmpp = Mail::DMARC::PurePerl->new( %$input ) }; if ($@) { return return_json_error($@); } eval { $res = $dmpp->validate(); }; if ($@) { return return_json_error($@); } my $return = $json->allow_blessed->convert_blessed->encode( $res ); print "$return\n"; return $return; } sub serve_file { my ($path) = @_; my @bits = split /\//, $path; shift @bits; return serve_pretty_error("file not found") if (!$bits[0] || 'dmarc' ne $bits[0]); shift @bits; $path = join '/', @bits; my $file = $bits[-1]; $file =~ s/[^[ -~]]//g; # strip out any non-printable chars my ($extension) = (split /\./, $file)[-1]; return serve_pretty_error("$extension not recognized") if ! $mimes{$extension}; my $dir = "share/html"; # distribution dir if ( ! -d $dir ) { $dir = File::ShareDir::dist_dir( 'Mail-DMARC' ); # installed loc. $dir .= "/html"; }; return serve_pretty_error("no such path") if ! $dir; return serve_gzip("$dir/$path.gz") if -f "$dir/$path.gz"; return serve_pretty_error("no such file") if ! -f "$dir/$path"; open my $FH, '<', "$dir/$path" or return serve_pretty_error( "unable to read $dir/$path: $!" ); print "Content-Type: $mimes{$extension}\n\n"; print <$FH>; close $FH; return 1; } sub serve_gzip { my $file = shift; open my $FH, '<', "$file" or return serve_pretty_error( "unable to read $file: $!" ); my $contents = do { local $/; <$FH> }; ## no critic (Local) close $FH; my $decomp = substr($file, 0, -3); # remove .gz suffix my ($extension) = (split /\./, $decomp)[-1]; # browser accepts gz encoding, serve compressed if ( grep {/gzip/} $ENV{HTTP_ACCEPT_ENCODING} ) { my $length = length $contents; return print <<"EO_GZ" Content-Length: $length Content-Type: $mimes{$extension} Content-Encoding: gzip $contents EO_GZ ; } # browser doesn't support gzip, decompress and serve my $out; IO::Uncompress::Gunzip::gunzip( \$contents => \$out ) or return serve_pretty_error( "unable to decompress" ); my $length = length $out; return print <<"EO_UNGZ" Content-Length: $length Content-Type: $mimes{$extension} $out EO_UNGZ ; } sub report_json_report { print "Content-type: application/json\n\n"; my $reports = $report->store->backend->get_report( CGI->new->Vars ); print encode_json $reports; return; } sub report_json_rr { print "Content-type: application/json\n\n"; my $row = $report->store->backend->get_rr( CGI->new->Vars ); print encode_json $row; # warn Dumper($row); return; } 1; __END__ =pod =head1 NAME Mail::DMARC::HTTP - view stored reports via HTTP =head1 VERSION version 1.20211209 =head1 SYNOPSIS See the POD docs / man page for L<dmarc_httpd>. =head1 AUTHORS =over 4 =item * Matt Simerson <msimerson@cpan.org> =item * Davide Migliavacca <shari@cpan.org> =item * Marc Bradshaw <marc@marcbradshaw.net> =back =head1 COPYRIGHT AND LICENSE This software is copyright (c) 2021 by Matt Simerson. This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. =cut