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<?php namespace Arcanedev\Socialite\OAuth\Two; |
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use Arcanedev\Socialite\Base\OAuthTwoProvider; |
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/** |
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* Class FacebookProvider |
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* |
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* @package Arcanedev\Socialite\OAuth\Two |
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* @author ARCANEDEV <[email protected]> |
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*/ |
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class FacebookProvider extends OAuthTwoProvider |
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{ |
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/* ------------------------------------------------------------------------------------------------ |
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| Properties |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* The base Facebook Graph URL. |
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* |
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* @var string |
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*/ |
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protected $graphUrl = 'https://graph.facebook.com'; |
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/** |
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* The Graph API version for the request. |
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* |
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* @var string |
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*/ |
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protected $version = 'v2.5'; |
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/** |
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* The user fields being requested. |
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* |
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* @var array |
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*/ |
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protected $fields = ['name', 'email', 'gender', 'verified']; |
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/** |
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* The scopes being requested. |
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* |
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* @var array |
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*/ |
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protected $scopes = ['email']; |
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/** |
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* Display the dialog in a popup view. |
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* |
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* @var bool |
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*/ |
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protected $popup = false; |
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/* ------------------------------------------------------------------------------------------------ |
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| Main Functions |
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| ------------------------------------------------------------------------------------------------ |
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*/ |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function getAuthUrl($state) |
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{ |
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return $this->buildAuthUrlFromBase( |
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"https://www.facebook.com/{$this->version}/dialog/oauth", $state |
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); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function getTokenUrl() |
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{ |
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return "{$this->graphUrl}/oauth/access_token"; |
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} |
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/** |
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* Get the access token for the given code. |
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* |
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* @param string $code |
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* |
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* @return string |
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*/ |
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public function getAccessToken($code) |
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{ |
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$response = $this->getHttpClient()->get($this->getTokenUrl(), [ |
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'query' => $this->getTokenFields($code), |
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]); |
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return $this->parseAccessToken($response->getBody()); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function parseAccessToken($body) |
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{ |
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parse_str($body); |
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return $access_token; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function getUserByToken($token) |
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{ |
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$appSecretProof = hash_hmac('sha256', $token, $this->clientSecret); |
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$response = $this->getHttpClient()->get("{$this->graphUrl}/{$this->version}/me?access_token={$token}&appsecret_proof={$appSecretProof}&fields=" . implode(',', $this->fields), [ |
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'headers' => [ |
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'Accept' => 'application/json', |
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], |
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]); |
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return json_decode($response->getBody(), true); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function mapUserToObject(array $user) |
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{ |
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$avatarUrl = "{$this->graphUrl}/{$this->version}/{$user['id']}/picture"; |
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return (new User)->setRaw($user)->map([ |
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'id' => $user['id'], |
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'nickname' => null, |
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'name' => isset($user['name']) ? $user['name'] : null, |
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'email' => isset($user['email']) ? $user['email'] : null, |
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'avatar' => $avatarUrl . '?type=normal', |
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'avatar_original' => $avatarUrl . '?width=1920', |
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]); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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protected function getCodeFields($state = null) |
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{ |
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$fields = parent::getCodeFields($state); |
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if ($this->popup) { |
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$fields['display'] = 'popup'; |
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} |
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return $fields; |
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} |
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/** |
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* Set the user fields to request from Facebook. |
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* |
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* @param array $fields |
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* |
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* @return self |
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*/ |
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public function fields(array $fields) |
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{ |
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$this->fields = $fields; |
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return $this; |
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} |
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/** |
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* Set the dialog to be displayed as a popup. |
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* |
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* @return self |
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*/ |
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public function asPopup() |
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{ |
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$this->popup = true; |
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return $this; |
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} |
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} |
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.