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examples/helloworld/app/lib/Dwarf/Module/SocialMedia/Rakuten.pm  view on Meta::CPAN

package Dwarf::Module::SocialMedia::Rakuten;
use Dwarf::Pragma;
use parent 'Dwarf::Module';
use Dwarf::HTTP::Async;
use HTTP::Request::Common ();
use JSON;
use LWP::UserAgent;
use MIME::Base64 qw/decode_base64 encode_base64url/;
use Dwarf::Util qw/safe_decode_json encode_utf8/;
use Digest::SHA qw/hmac_sha256_base64/;
use URI::Escape;

use Dwarf::Accessor qw/
	ua urls
	key secret
	access_token
	user_id name profile_image
	on_error
/;

sub init {
	my $self = shift;

	$self->{ua}       ||= LWP::UserAgent->new;

	$self->{urls} ||= {
		api           => 'https://app.rakuten.co.jp/engine/api/MemberInformation/GetOpenIdUserInfo/20160715',
		access_token  => 'https://app.rakuten.co.jp/engine/idtoken',
	};

	$self->{on_error} ||= sub { die @_ };
}

sub show_user {
	my $self = shift;

	die 'access token must be specified.' unless defined $self->access_token;

	my $params = {};
	$params->{access_token} = $self->access_token;

	my $uri = URI->new($self->urls->{api});
	$uri->query_form(%$params);

	my $res = $self->ua->post($uri);

	my $content = eval { safe_decode_json(encode_utf8 $res->decoded_content) };
	if ($@) {
		warn "Couldn't decode JSON: $@";
		$content = $res->decoded_content;
	}

	return $content;
}

sub request_access_token {
	my ($self, %params) = @_;

	die 'key must be specified.' unless defined $self->key;
	die 'secret must be specified.' unless defined $self->secret;
	die "redirect_uri must be specified." unless defined $params{redirect_uri};
	die "code must be specified." unless defined $params{code};

	$params{grant_type}      = "authorization_code";
	$params{client_id}     ||= $self->key;