File Coverage

blib/lib/AnyEvent/UserAgent.pm

Criterion	Covered	Total	%
statement	97	113	85.8
branch	29	38	76.3
condition	18	36	50.0
subroutine	18	22	81.8
pod	6	6	100.0
total	168	215	78.1

package AnyEvent::UserAgent;

# This module based on original AnyEvent::HTTP::Simple module by punytan
# ([e-mail]): http://github.com/punytan/AnyEvent-HTTP-Simple

use Moo;

use AnyEvent::HTTP ();
use HTTP::Cookies ();
use HTTP::Request ();
use HTTP::Request::Common ();
use HTTP::Response ();

use namespace::clean;

our $VERSION = '0.06';


has agent              => (is => 'rw', default => sub { $AnyEvent::HTTP::USERAGENT . ' AnyEvent-UserAgent/' . $VERSION });

has cookie_jar         => (is => 'rw', default => sub { HTTP::Cookies->new });

has max_redirects      => (is => 'rw', default => sub { 5 });

has inactivity_timeout => (is => 'rw', default => sub { 20 });

has request_timeout    => (is => 'rw', default => sub { 0 });

sub request {
	my $cb = pop();
	my ($self, $req, %opts) = @_;

	$self->_request($req, \%opts, sub {
		$self->_response($req, @_, $cb);
	});
}

sub get    { _make_request(GET    => @_) }
sub head   { _make_request(HEAD   => @_) }
sub put    { _make_request(PUT    => @_) }
sub delete { _make_request(DELETE => @_) }
sub post   { _make_request(POST   => @_) }

sub _make_request {
	my $cb   = pop();
	my $meth = shift();
	my $self = shift();

	no strict 'refs';
	$self->request(&{'HTTP::Request::Common::' . $meth}(@_), $cb);
}

sub _request {
	my ($self, $req, $opts, $cb) = @_;

	my $uri  = $req->uri;
	my $hdrs = $req->headers;

	unless ($hdrs->user_agent) {
		$hdrs->user_agent($self->agent);
	}

	if ($uri->can('userinfo') && $uri->userinfo && !$hdrs->authorization) {
		$hdrs->authorization_basic(split(':', $uri->userinfo, 2));
	}
	if ($uri->scheme) {
		$self->cookie_jar->add_cookie_header($req);
	}

	for (qw(max_redirects inactivity_timeout request_timeout)) {
		$opts->{$_} = $self->$_() unless exists($opts->{$_});
	}

	my ($grd, $tmr);

	if ($opts->{request_timeout}) {
		$tmr = AE::timer $opts->{request_timeout}, 0, sub {
			undef($grd);
			$cb->($opts, undef, {Status => 597, Reason => 'Request timeout'});
		};
	}
	$grd = AnyEvent::HTTP::http_request(
		$req->method,
		$req->uri,
		headers => {map { $_ => $hdrs->header($_) } $hdrs->header_field_names},
		body    => $req->content,
		recurse => 0,
		timeout => $opts->{inactivity_timeout},
		(map { $_ => $opts->{$_} } grep { exists($opts->{$_}) }
			qw(proxy tls_ctx session timeout on_prepare tcp_connect on_header
			   on_body want_body_handle persistent keepalive handle_params)),
		sub {
			undef($grd);
			undef($tmr);
			$cb->($opts, @_);
		}
	);
}

sub _response {
	my $cb = pop();
	my ($self, $req, $opts, $body, $hdrs, $prev, $count) = @_;

	my $res = HTTP::Response->new(delete($hdrs->{Status}), delete($hdrs->{Reason}));

	$res->request($req);
	$res->previous($prev) if $prev;

	delete($hdrs->{URL});
	if (defined($hdrs->{HTTPVersion})) {
		$res->protocol('HTTP/' . delete($hdrs->{HTTPVersion}));
	}
	if (my $cookies = $hdrs->{'set-cookie'}) {
		local @_ = split(/,(\w+=)/, ',' . $cookies);
		shift();
		my @val;
		push(@val, join('', shift(), shift())) while @_;
		$hdrs->{'set-cookie'} = \@val;
	}
	if (keys(%$hdrs)) {
		$res->header(%$hdrs);
	}
	if ($res->code >= 590 && $res->code <= 599 && $res->message) {
		if ($res->message eq 'Connection timed out') {
			$res->message('Inactivity timeout');
		}
		unless ($res->header('client-warning')) {
			$res->header('client-warning' => $res->message);
		}
	}
	if (defined($body)) {
		$res->content_ref(\$body);
	}
	$self->cookie_jar->extract_cookies($res);

	my $code = $res->code;

	if ($code == 301 || $code == 302 || $code == 303 || $code == 307 || $code == 308) {
		$self->_redirect($req, $opts, $code, $res, $count, $cb);
	}
	else {
		$cb->($res);
	}
}

sub _redirect {
	my ($self, $req, $opts, $code, $prev, $count, $cb) = @_;

	unless (defined($count) ? $count : ($count = $opts->{max_redirects})) {
		$prev->header('client-warning' => 'Redirect loop detected (max_redirects = ' . $opts->{max_redirects} . ')');
		$cb->($prev);
		return;
	}

	my $meth  = $req->method;
	my $proto = $req->uri->scheme;
	my $uri   = $prev->header('location');

	$req = $req->clone();
	$req->remove_header('cookie');
	if (($code == 302 || $code == 303) && !($meth eq 'GET' || $meth eq 'HEAD')) {
		$req->method('GET');
		$req->content('');
		$req->remove_content_headers();
	}
	{
		# Support for relative URL for redirect.
		# Not correspond to RFC.
		local $URI::ABS_ALLOW_RELATIVE_SCHEME = 1;
		my $base = $prev->base;
		$uri = $HTTP::URI_CLASS->new(defined($uri) ? $uri : '', $base)->abs($base);
	}
	$req->uri($uri);
	if ($proto eq 'https' && $uri->scheme eq 'http') {
		# Suppress 'Referer' header for HTTPS to HTTP redirect.
		# RFC 2616, section 15.1.3.
		$req->remove_header('referer');
	}

	$self->_request($req, $opts, sub {
		$self->_response($req, @_, $prev, $count - 1, sub { return $cb->(@_); });
	});
}


1;


__END__