Facebook Social

FacebookService.php

<?php

namespace App\Services\Social;

use App\Exceptions\FurusatoException;
use GuzzleHttp\Client;
use GuzzleHttp\Exception\ClientException;

class FacebookService extends AbstractSocial
{
    /**
     * The base Facebook Graph URL.
     *
     * @var string
     */
    protected $graphUrl = 'https://graph.facebook.com';

    /**
     * @var string
     */
    protected $graphVideoUrl = 'https://graph-video.facebook.com';

    /**
     * The Graph API version for the request.
     *
     * @var string
     */
    protected $version = 'v2.8';

    /**
     * The user fields being requested.
     *
     * @var array
     */
    protected $fields = ['name', 'email', 'gender', 'verified', 'link'];

    /**
     * Get user data from facebook
     *
     * @param $token
     * @return mixed
     * @throws FurusatoException
     */
    protected function getUserByToken($token)
    {
        $meUrl = $this->graphUrl.'/'.$this->version.'/me?access_token='.$token.'&fields='.implode(',', $this->fields);

        if (! empty($this->clientSecret)) {
            $appSecretProof = hash_hmac('sha256', $token, $this->clientSecret);

            $meUrl .= '&appsecret_proof='.$appSecretProof;
        }

        $http = new Client();
        try {
            $response = $http->get($meUrl, [
                'headers' => [
                    'Accept' => 'application/json',
                ],
            ]);
        } catch (ClientException $e) {
            throw new FurusatoException($e->getMessage(), config('error.social.invalid_params'));
        }

        return json_decode($response->getBody(), true);
    }

    /**
     * Post to Newsfeed
     *
     * @param $accessToken
     * @param array $params
     * @return mixed
     */
    public function post($accessToken, array $params)
    {
        $http = new Client();
        $user = $this->getUserByToken($accessToken);
        $response = $http->post($this->graphUrl.'/'.$this->version.'/'.$user['id'].'/feed', [
            'json' => [
               /* 'access_token' => $accessToken,
                'message' => str_random(40),
                'privacy' => [
                    'value' => 'EVERYONE',
                ],
                'link' => 'http://www.youtube.com/watch?v=3aICB2mUu2k',
                'source' => 'http://www.youtube.com/v/3aICB2mUu2k',
                'picture' => 'http://img.youtube.com/vi/3aICB2mUu2k/0.jpg',
                'properties' => [
                    'name' => 'test video',
                    'text' => 'The text video',
                    'href' => 'http://clips.vorwaerts-gmbh.de/VfE_html5.mp4'
                ]*/
            ]
        ]);

        return json_decode($response->getBody(), true);
    }

    /**
     * Convert data
     *
     * @param array $user
     * @return array
     */
    protected function mapUserToObject(array $user)
    {
        $avatarUrl = $this->graphUrl.'/'.$this->version.'/'.$user['id'].'/picture';

        return [
            'id' => $user['id'],
            'nickname' => isset($user['name']) ? $user['name'] : null,
            'name' => isset($user['name']) ? $user['name'] : null,
            'email' => isset($user['email']) ? $user['email'] : null,
            'images' => [
                'origin' => $avatarUrl.'?width=1920',
                'thumb' => $avatarUrl.'?width=normal',
            ]
        ];
    }
}