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lib/APR/Emulate/PSGI.pm  view on Meta::CPAN

=cut

sub method {
    my ($self) = @_;
    if ($self->{'cgi_mode'}) {
        return $ENV{'REQUEST_METHOD'};
    }
    return $self->{'psgi_env'}{'REQUEST_METHOD'};
}

=item uri

Emulates L<Apache2::RequestRec/uri>.

=cut

sub uri {
    my ($self) = @_;
    if ($self->{'cgi_mode'}) {
        return $ENV{'PATH_INFO'};
    }
    return $self->{'psgi_env'}{'PATH_INFO'};
}

=item parsed_uri

Emulates L<Apache2::URI/parsed_uri>.

=cut

sub parsed_uri {
    my ($self) = @_;
    if ($self->{'cgi_mode'}) {
        return $self->{'uri'} //= URI->new($ENV{'REQUEST_URI'});
    }
    return $self->{'uri'} //= URI->new($self->{'psgi_env'}{'REQUEST_URI'});
}

=item args

Emulates L<Apache2::RequestRec/args>.

=cut

sub args {
    my ($self) = @_;
    if ($self->{'cgi_mode'}) {
        return $ENV{'QUERY_STRING'};
    }
    return $self->{'psgi_env'}{'QUERY_STRING'};
}

=item read

Emulates L<Apache2::RequestIO/read>.

=cut

sub read {
    my ($self, $buffer, $length, $offset) = @_;
    $offset ||= 0;
    # We use $_[1] instead of $buffer, because we need to modify the original instead of a copy.
    if ($self->{'cgi_mode'}) {
        return CORE::read(\*STDIN, $_[1], $length, $offset);
    }
    return $self->{'psgi_env'}{'psgi.input'}->read($_[1], $length, $offset);
}

=item pool

Emulates L<Apache2::RequestRec/pool>.

=cut

sub pool {
    my ($self) = @_;
    return $self->{'pool'} //= APR::MyPool->new();
}

=back

=head2 Response Methods

=over 4

=item headers_out

Emulates L<Apache2::RequestRec/headers_out>.

=cut

sub headers_out {
    my ($self) = @_;
    return $self->{'headers_out'} //= APR::MyTable::make();
}

=item err_headers_out

Emulates L<Apache2::RequestRec/err_headers_out>.

=cut

sub err_headers_out {
    my ($self) = @_;
    return $self->{'err_headers_out'} //= APR::MyTable::make();
}

=item no_cache

Emulates L<Apache2::RequestUtil/no_cache>.

=cut

sub no_cache {
    my ($self, $value) = @_;
    my $previous_value = $self->{'no_cache'} || 0;
    $self->{'no_cache'} = $value ? 1 : 0;
    return $previous_value if ($previous_value eq $self->{'no_cache'});

    # Set headers.
    if ($self->{'no_cache'}) {
        $self->headers_out()->add('Pragma' => 'no-cache');
        $self->headers_out()->add('Cache-control' => 'no-cache');
    }
    # Unset headers.
    else {

lib/APR/Emulate/PSGI.pm  view on Meta::CPAN

Emulates L<Apache2::RequestRec/status_line>.

=cut

sub status_line {
    my ($self, @value) = @_;
    $self->{'status_line'} = $value[0] if scalar(@value);
    return $self->{'status_line'};
}

=item content_type

Emulates L<Apache2::RequestRec/content_type>.

If no PSGI enviroment is provided to L</new>, calling this
method with a parameter will cause HTTP headers to be sent.

=cut

sub content_type {
    my ($self, @value) = @_;
    if (scalar(@value)) {
        $self->{'content_type'} = $value[0];

        if ($self->{'cgi_mode'}) {
            $self->_send_http_headers();
        }
    }
    return $self->{'content_type'};
}

sub _send_http_headers {
    my ($self) = @_;
    return if ($self->{'headers_sent'});
    if (my $status = $self->status_line() || $self->status() || '200 OK') {
        my $url_scheme = uc($self->{'psgi_env'}{'psgi.url_scheme'} || 'http');
        print $url_scheme . '/1.1 ' . $status . "\n";
    }
    print 'Content-Type: ' . ($self->{'content_type'} || 'text/html') . "\n";
    $self->headers_out()->do(
        sub {
            my ($key, $value) = @_;
            print join(': ', $key, $value) . "\n";
        }
    );
    print "\n\n";
    $self->{'headers_sent'} = 1;
    return 1;
}

=item print

Emulates L<Apache2::RequestIO/print>.

=cut

sub print {
    my ($self, @content) = @_;
    my $success = CORE::print @content;
    return $success
        ? length(join('', @content))
        : 0;
}

=item rflush

Emulates L<Apache2::RequestIO/rflush>.

=cut

sub rflush {}

=back

=cut

# See APR::Table in mod_perl 2 distribution.
package APR::MyTable;

sub make {
    return bless {}, __PACKAGE__;
}

sub copy {
    my ($self) = @_;
    my %copy = %$self;
    return bless \%copy, ref($self);
}

sub clear {
    my ($self) = @_;
    my (@keys) = keys %$self;
    foreach my $key (@keys) {
        delete $self->{$key};
    }
    return 1;
}

sub set {
    my ($self, @pairs) = @_;
    while (@pairs) {
        my ($key, $value) = splice(@pairs, 0, 2);
        $self->{$key} = $value;
    }
    return 1;
}

sub unset {
    my ($self, @keys) = @_;
    foreach my $key (@keys) {
        delete $self->{$key};
    }
    return 1;
}

sub add {
    # TODO: When implemented properly, this should allow duplicate keys.
    my ($self, $key, $value) = @_;
    $self->{$key} = $value;
    return 1;
}