# Copyright (C) 2015 all contributors # License: AGPL-3.0+ package PublicInbox::RepoBase; use strict; use warnings; use PublicInbox::Hval; our %MIME_TYPE_WHITELIST = ('application/pdf' => 1); sub new { bless {}, shift } sub call { my ($self, $cmd, $req) = @_; my $vcs = $req->{-repo}->{vcs}; my $rv = eval { no strict 'refs'; my $sub = "call_${vcs}_$cmd"; $self->$sub($req); }; $@ ? [ 500, ['Content-Type', 'text/plain'], [] ] : $rv; } sub mime_load { my ($self, $file) = @_; my %rv; open my $fh, '<', $file or return \%rv; while (<$fh>) { next if /^#/; # no comments my ($type, @ext) = split(/\s+/); if (defined $type) { $rv{$_} = $type foreach @ext; } } \%rv; } # returns undef if missing, so users can scan the blob if needed sub mime_type_unsafe { my ($self, $fn) = @_; $fn =~ /\.([^\.]+)\z/ or return; my $ext = $1; my $m = $self->{mime_types} ||= $self->mime_load('/etc/mime.types'); $m->{$ext}; } sub mime_type { my ($self, $fn) = @_; my $ct = $self->mime_type_unsafe($fn); return unless defined $ct; # XSS protection. Assume the browser knows what to do # with images/audio/video; but don't allow random HTML from # a repository to be served ($ct =~ m!\A(?:image|audio|video)/! || $MIME_TYPE_WHITELIST{$ct}) ? $ct : undef; } # starts an HTML page for Repobrowse in a consistent way sub html_start { my ($self, $req, $title_html, $opts) = @_; my $desc = $req->{-repo}->desc_html; my $meta = ''; if ($opts) { my @robots; foreach (qw(nofollow noindex)) { push @robots, $_ if $opts->{$_}; } $meta = qq('; } "$title_html" . PublicInbox::Hval::STYLE . $meta . "
$desc";
}

sub r {
	my ($self, $status, $req, @extra) = @_;
	my @h;

	my $body = '';
	if ($status == 301 || $status == 302) {
		# The goal is to be able to make redirects like we make
		#  tags with '../'
		my $env = $req->{env};
		my $base = PublicInbox::Repobrowse::base_url($env);
		my ($redir) = @extra;
		if (index($redir, '/') != 0) { # relative redirect
			my @orig = split(m!/+!, $env->{PATH_INFO});
			my @dest = split(m!/+!, $redir);

			while ($dest[0] eq '..') {
				pop @orig;
				shift @dest;
			}
			my $end = '';
			$end = pop @dest if $dest[-1] =~ /\A[#\?]/;
			$redir = $base . join('/', @orig, @dest) . $end;
		} else {
			$redir = $base . $redir;
		}
		push @h, qw(Content-Type text/plain Location), $redir;

		# mainly for curl (no-'-L') users:
		$body = "Redirecting to $redir\n";
	} else {
		push @h, 'Content-Type', 'text/plain; charset=UTF-8';
	}

	[ $status, \@h, [ $body ] ]
}

sub rt {
	my ($self, $status, $t) = @_;
	my $res = [ $status, [ 'Content-Type', "text/$t; charset=UTF-8" ] ];
	$res->[2] = [ $_[3] ] if defined $_[3];
	$res;
}

1;