GuildWars2 OAuth2 serviceclass for https://github.com/Lusitanian/PHPoAuthLib

GuildWarsOAuth2Service.php

<?php

namespace GW2Treasures\GW2Api\OAuth;

use OAuth\Common\Http\Exception\TokenResponseException;
use OAuth\Common\Http\Uri\Uri;
use OAuth\OAuth2\Service\AbstractService;
use OAuth\OAuth2\Token\StdOAuth2Token;

class GuildWarsOAuth2Service extends AbstractService {

    const SCOPE_ACCOUNT = 'account';
    const SCOPE_OFFLINE = 'offline';

    /**
     * {@inheritdoc}
     */
    protected function parseAccessTokenResponse( $responseBody ) {
        // example valid response: {"access_token":"xxx","token_type":"Bearer","scope":"account","refresh_token":"xxx"}
        // example error response: {"error":"invalid_grant","error_description":"Grant not found, revoked, or already consumed","text":"ErrSessionNotFound"}

        $data = json_decode( $responseBody, true );

        if( is_null( $data ) || !is_array( $data )) {
            throw new TokenResponseException( 'Unable to parse response.' );
        } elseif( isset( $data['error_description'] )) {
            throw new TokenResponseException('Error in retrieving token: "' . $data['error_description'] . '"');
        } elseif( isset( $data['error'] )) {
            throw new TokenResponseException('Error in retrieving token: "' . $data['error'] . '"');
        }

        $token = new StdOAuth2Token();
        $token->setAccessToken($data['access_token']);

        // TODO: not supported by guildwars2 yet
        // $token->setLifeTime($data['expires_in']);

        if( isset( $data['refresh_token'] )) {
            $token->setRefreshToken( $data['refresh_token'] );
            unset( $data['refresh_token'] );
        }

        unset( $data['access_token'] );
        unset( $data['expires_in'] );

        $token->setExtraParams( $data );

        return $token;
    }

    /**
     * {@inheritdoc}
     */
    public function getAuthorizationEndpoint() {
        return new Uri('https://account.guildwars2.com/oauth2/authorization');
    }

    /**
     * {@inheritdoc}
     */
    public function getAccessTokenEndpoint() {
        return new Uri('https://account.guildwars2.com/oauth2/token');
    }

    /**
     * {@inheritdoc}
     */
    protected function getAuthorizationMethod() {
        return static::AUTHORIZATION_METHOD_HEADER_BEARER;
    }
}