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<?php |
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namespace anerg\OAuth2\Gateways; |
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use anerg\OAuth2\Connector\Gateway; |
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use anerg\OAuth2\Helper\Str; |
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class Alipay extends Gateway |
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{ |
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const RSA_PRIVATE = 1; |
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const RSA_PUBLIC = 2; |
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const API_BASE = 'https://openapi.alipay.com/gateway.do'; |
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protected $AuthorizeURL = 'https://openauth.alipay.com/oauth2/publicAppAuthorize.htm'; |
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protected $AccessTokenURL = 'https://openapi.alipay.com/gateway.do'; |
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/** |
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* 得到跳转地址 |
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*/ |
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public function getRedirectUrl() |
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{ |
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$params = [ |
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'app_id' => $this->config['app_id'], |
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'redirect_uri' => $this->config['callback'], |
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'scope' => $this->config['scope'], |
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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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$this->getToken(); |
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if (isset($this->token['openid'])) { |
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return $this->token['openid']; |
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} else { |
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throw new \Exception('没有获取到支付宝用户ID!'); |
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} |
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} |
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/** |
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* 获取格式化后的用户信息 |
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*/ |
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public function userinfo() |
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{ |
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$rsp = $this->userinfoRaw(); |
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$userinfo = [ |
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'openid' => $this->token['openid'], |
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'channel' => 'alipay', |
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'nick' => $rsp['nick_name'], |
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'gender' => strtolower($rsp['gender']), |
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'avatar' => $rsp['avatar'], |
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]; |
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return $userinfo; |
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} |
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/** |
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* 获取原始接口返回的用户信息 |
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*/ |
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public function userinfoRaw() |
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{ |
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$this->getToken(); |
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$rsp = $this->call('alipay.user.info.share'); |
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return $rsp['alipay_user_info_share_response']; |
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} |
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/** |
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* 发起请求 |
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* |
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* @param string $api |
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* @param array $params |
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* @param string $method |
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* @return array |
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*/ |
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private function call($api, $params = [], $method = 'POST') |
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{ |
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$method = strtoupper($method); |
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$_params = [ |
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'app_id' => $this->config['app_id'], |
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'method' => $api, |
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'charset' => 'UTF-8', |
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'sign_type' => 'RSA2', |
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'timestamp' => date("Y-m-d H:i:s"), |
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'version' => '1.0', |
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'auth_token' => $this->token['access_token'], |
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]; |
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$params = array_merge($_params, $params); |
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$params['sign'] = $this->signature($params); |
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$data = $this->$method(self::API_BASE, $params); |
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$data = mb_convert_encoding($data, 'utf-8', 'gbk'); |
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return json_decode($data, true); |
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} |
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/** |
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* 默认的AccessToken请求参数 |
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* @return array |
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*/ |
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protected function accessTokenParams() |
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{ |
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$params = [ |
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'app_id' => $this->config['app_id'], |
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'method' => 'alipay.system.oauth.token', |
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'charset' => 'UTF-8', |
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'sign_type' => 'RSA2', |
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'timestamp' => date("Y-m-d H:i:s"), |
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'version' => '1.0', |
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'grant_type' => $this->config['grant_type'], |
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'code' => isset($_GET['auth_code']) ? $_GET['auth_code'] : '', |
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]; |
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$params['sign'] = $this->signature($params); |
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return $params; |
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} |
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/** |
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* 支付宝签名 |
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*/ |
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private function signature($data = []) |
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{ |
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ksort($data); |
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$str = Str::buildParams($data); |
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$rsaKey = $this->getRsaKeyVal(self::RSA_PRIVATE); |
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$res = openssl_get_privatekey($rsaKey); |
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if ($res !== false) { |
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$sign = ''; |
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openssl_sign($str, $sign, $res, OPENSSL_ALGO_SHA256); |
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openssl_free_key($res); |
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return base64_encode($sign); |
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} |
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throw new \Exception('支付宝RSA私钥不正确'); |
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} |
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/** |
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* 获取密钥 |
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* |
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* @param int $type |
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* @return string |
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*/ |
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private function getRsaKeyVal($type = self::RSA_PUBLIC) |
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{ |
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if ($type === self::RSA_PUBLIC) { |
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$keyname = 'pem_public'; |
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$header = '-----BEGIN PUBLIC KEY-----'; |
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$footer = '-----END PUBLIC KEY-----'; |
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} else { |
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$keyname = 'pem_private'; |
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$header = '-----BEGIN RSA PRIVATE KEY-----'; |
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$footer = '-----END RSA PRIVATE KEY-----'; |
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} |
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$rsa = $this->config[$keyname]; |
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if (is_file($rsa)) { |
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$rsa = file_get_contents($rsa); |
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} |
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if (empty($rsa)) { |
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throw new \Exception('支付宝RSA密钥未配置'); |
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} |
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$rsa = str_replace([PHP_EOL, $header, $footer], '', $rsa); |
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$rsaVal = $header . PHP_EOL . chunk_split($rsa, 64, PHP_EOL) . $footer; |
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return $rsaVal; |
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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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* @param string $token 获取access_token的方法的返回值 |
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*/ |
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protected function parseToken($token) |
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{ |
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$token = mb_convert_encoding($token, 'utf-8', 'gbk'); |
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$data = json_decode($token, true); |
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if (isset($data['alipay_system_oauth_token_response'])) { |
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$data = $data['alipay_system_oauth_token_response']; |
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$data['openid'] = $data['user_id']; |
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return $data; |
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} else { |
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throw new \Exception("获取支付宝 ACCESS_TOKEN 出错:{$token}"); |
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} |
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} |
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} |
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