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<?php |
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/** |
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* Apple Sign In https://developer.apple.com/sign-in-with-apple/ |
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*/ |
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namespace tinymeng\OAuth2\Gateways; |
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use tinymeng\OAuth2\Connector\Gateway; |
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use tinymeng\OAuth2\Exception\OAuthException; |
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use tinymeng\OAuth2\Helper\ConstCode; |
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class Apple extends Gateway |
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{ |
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const API_BASE = 'https://appleid.apple.com/'; |
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protected $AuthorizeURL = 'https://appleid.apple.com/auth/authorize'; |
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protected $AccessTokenURL = 'https://appleid.apple.com/auth/token'; |
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/** |
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* 得到跳转地址 |
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*/ |
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public function getRedirectUrl() |
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{ |
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$this->saveState(); |
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$params = [ |
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'client_id' => $this->config['app_id'], |
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'redirect_uri' => $this->config['callback'], |
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'response_type' => $this->config['response_type'], |
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'scope' => $this->config['scope'] ?: 'name email', |
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'response_mode' => 'form_post', |
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'state' => $this->config['state'], |
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]; |
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return $this->AuthorizeURL . '?' . http_build_query($params); |
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} |
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/** |
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* 获取当前授权用户的openid标识 |
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*/ |
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public function openid() |
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{ |
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$this->getToken(); |
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return $this->token['sub'] ?? ''; |
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} |
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/** |
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* 获取格式化后的用户信息 |
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*/ |
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public function userInfo() |
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{ |
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$userInfo = [ |
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'open_id' => $this->openid(), |
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'union_id' => $this->token['sub'] ?? '', |
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'channel' => ConstCode::TYPE_APPLE, |
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'nickname' => $this->token['email'] ?? '', |
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'gender' => ConstCode::GENDER, |
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'avatar' => '', |
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'access_token' => $this->token['access_token'] ?? '', |
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'native' => $this->token |
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]; |
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return $userInfo; |
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} |
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/** |
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* 获取access_token |
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*/ |
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protected function getToken() |
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{ |
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if (empty($this->token)) { |
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$this->checkState(); |
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// 生成客户端密钥 |
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$clientSecret = $this->generateClientSecret(); |
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$params = [ |
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'client_id' => $this->config['app_id'], |
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'client_secret' => $clientSecret, |
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'code' => isset($_REQUEST['code']) ? $_REQUEST['code'] : '', |
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'grant_type' => $this->config['grant_type'], |
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'redirect_uri' => $this->config['callback'], |
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]; |
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$response = $this->post($this->AccessTokenURL, $params); |
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$this->token = $this->parseToken($response); |
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// 解析 ID Token |
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$this->token = array_merge($this->token, $this->parseIdToken($this->token['id_token'])); |
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} |
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} |
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/** |
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* 生成客户端密钥 |
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*/ |
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protected function generateClientSecret() |
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{ |
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$key = openssl_pkey_get_private($this->config['private_key']); |
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if (!$key) { |
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throw new OAuthException('私钥无效'); |
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} |
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$headers = [ |
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'kid' => $this->config['key_id'], |
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'alg' => 'ES256' |
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]; |
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$claims = [ |
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'iss' => $this->config['team_id'], |
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'iat' => time(), |
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'exp' => time() + 86400 * 180, |
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'aud' => 'https://appleid.apple.com', |
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'sub' => $this->config['app_id'], |
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]; |
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$payload = $this->base64UrlEncode(json_encode($headers)) . '.' . |
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$this->base64UrlEncode(json_encode($claims)); |
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openssl_sign($payload, $signature, $key, OPENSSL_ALGO_SHA256); |
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return $payload . '.' . $this->base64UrlEncode($signature); |
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} |
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/** |
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* Base64Url 编码 |
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*/ |
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protected function base64UrlEncode($data) |
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{ |
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return rtrim(strtr(base64_encode($data), '+/', '-_'), '='); |
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} |
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/** |
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* 解析 ID Token |
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*/ |
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protected function parseIdToken($idToken) |
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{ |
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$tokens = explode('.', $idToken); |
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if (count($tokens) != 3) { |
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throw new OAuthException('无效的 ID Token'); |
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} |
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$payload = json_decode(base64_decode($tokens[1]), true); |
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if (!$payload) { |
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throw new OAuthException('无效的 Token Payload'); |
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} |
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return $payload; |
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} |
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/** |
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* 解析access_token方法请求后的返回值 |
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*/ |
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protected function parseToken($token) |
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{ |
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$data = json_decode($token, true); |
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if (isset($data['access_token'])) { |
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return $data; |
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} |
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throw new OAuthException('获取Apple access_token 出错：' . json_encode($data)); |
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} |
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} |
majiameng /
OAuth2
