详解PHP实现支付宝小程序用户授权的工具类

<?php/** * Created by PhpStorm. * User: My * Date: 2018/8/16 * Time: 17:45 */namespace App/Http/Helper;use App/Http/Helper/Sys/BusinessHelper;use Illuminate/Support/Facades/Log;class AmpHelper{  const API_DOMAIN = "https://openapi.alipay.com/gateway.do?";  const API_METHOD_GENERATE_QR = 'alipay.open.app.qrcode.create';  const API_METHOD_AUTH_TOKEN = 'alipay.system.oauth.token';  const API_METHOD_GET_USER_INFO = 'alipay.user.info.share';  const SIGN_TYPE_RSA2 = 'RSA2';  const VERSION = '1.0';  const FILE_CHARSET_UTF8 = "UTF-8";  const FILE_CHARSET_GBK = "GBK";  const RESPONSE_OUTER_NODE_QR = 'alipay_open_app_qrcode_create_response';  const RESPONSE_OUTER_NODE_AUTH_TOKEN = 'alipay_system_oauth_token_response';  const RESPONSE_OUTER_NODE_USER_INFO = 'alipay_user_info_share_response';  const RESPONSE_OUTER_NODE_ERROR_RESPONSE = 'error_response';  const STATUS_CODE_SUCCESS = 10000;  const STATUS_CODE_EXCEPT = 20000;  /**   * 获取用户信息接口，根据token   * @param $code 授权码   * 通过授权码获取用户的信息   */  public static function getAmpUserInfoByAuthCode($code){    $aliUserInfo = [];    $tokenData = AmpHelper::getAmpToken($code);    //如果token不存在，这种主要是为了处理支付宝的异常记录    if(isset($tokenData['code'])){      return $tokenData;    }    $token = formatArrValue($tokenData,'access_token');    if($token){      $userBusiParam = self::getAmpUserBaseParam($token);      $url = self::buildRequestUrl($userBusiParam);      $resonse = self::getResponse($url,self::RESPONSE_OUTER_NODE_USER_INFO);      if($resonse['code'] == self::STATUS_CODE_SUCCESS){        //有效的字段列        $userInfoColumn = ['user_id','avatar','province','city','nick_name','is_student_certified','user_type','user_status','is_certified','gender'];        foreach ($userInfoColumn as $column){          $aliUserInfo[$column] = formatArrValue($resonse,$column,'');        }      }else{        $exceptColumns = ['code','msg','sub_code','sub_msg'];        foreach ($exceptColumns as $column){          $aliUserInfo[$column] = formatArrValue($resonse,$column,'');        }      }    }    return $aliUserInfo;  }  /**   * 获取小程序token接口   */  public static function getAmpToken($code){    $param = self::getAuthBaseParam($code);    $url = self::buildRequestUrl($param);    $response = self::getResponse($url,self::RESPONSE_OUTER_NODE_AUTH_TOKEN);    $tokenResult = [];    if(isset($response['code']) && $response['code'] != self::STATUS_CODE_SUCCESS){      $exceptColumns = ['code','msg','sub_code','sub_msg'];      foreach ($exceptColumns as $column){        $tokenResult[$column] = formatArrValue($response,$column,'');      }    }else{      $tokenResult = $response;    }    return $tokenResult;  }  /**   * 获取二维码链接接口   * 433ac5ea4c044378826afe1532bcVX78   * https://openapi.alipay.com/gateway.do?timestamp=2013-01-01 08:08:08&method=alipay.open.app.qrcode.create&app_id=2893&sign_type=RSA2&sign=ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE&version=1.0&biz_content=  {"url_param":"/index.html?name=ali&loc=hz", "query_param":"name=1&age=2", "describe":"二维码描述"}  */  public static function generateQrCode($mpPage = 'pages/index',$queryParam = [],$describe){    $param = self::getQrcodeBaseParam($mpPage,$queryParam,$describe );    $url = self::buildRequestUrl($param);    $response = self::getResponse($url,self::RESPONSE_OUTER_NODE_QR);    return $response;  }  /**   * 获取返回的数据，对返回的结果做进一步的封装和解析,因为支付宝的每个接口的返回都是由一个特定的     * key组成的，因此这里直接封装了而一个通用的方法，对于不同的接口只需要更改相应的node节点就可以了   */  public static function getResponse($url,$responseNode){    $json = curlRequest($url);    $response = json_decode($json,true);    $responseContent = formatArrValue($response,$responseNode,[]);    $errResponse = formatArrValue($response,self::RESPONSE_OUTER_NODE_ERROR_RESPONSE,[]);    if($errResponse){      return $errResponse;    }    return $responseContent;  }  /**   * 获取请求的链接   */  public static function buildQrRequestUrl($mpPage = 'pages/index',$queryParam = []){    $paramStr = http_build_query(self::getQrBaseParam($mpPage,$queryParam));    return self::API_DOMAIN . $paramStr;  }  /**   * 构建请求链接   */  public static function buildRequestUrl($param){    $paramStr = http_build_query($param);    return self::API_DOMAIN . $paramStr;  }  /**   * 获取用户的基础信息接口   */  public static function getAmpUserBaseParam($token){    $busiParam = [      'auth_token' => $token,    ];    $param = self::buildApiBuisinessParam($busiParam,self::API_METHOD_GET_USER_INFO);    return $param;  }  /**   *获取二维码的基础参数   */  public static function getQrcodeBaseParam($page= 'pages/index/index',$queryParam = [],$describe = ''){    $busiParam = [      'biz_content' => self::getQrBizContent($page,$queryParam,$describe)    ];    $param = self::buildApiBuisinessParam($busiParam,self::API_METHOD_GENERATE_QR);    return $param;  }  /**   *获取授权的基础参数   */  public static function getAuthBaseParam($code,$refreshToken = ''){    $busiParam = [      'grant_type' => 'authorization_code',      'code' => $code,      'refresh_token' => $refreshToken,    ];    $param = self::buildApiBuisinessParam($busiParam,self::API_METHOD_AUTH_TOKEN);    return $param;  }  /**   * 构建业务参数   */  public static function buildApiBuisinessParam($businessParam,$apiMethod){    $pubParam = self::getApiPubParam($apiMethod);    $businessParam = array_merge($pubParam,$businessParam);    $signContent = self::getSignContent($businessParam);    error_log('sign_content ===========>'.$signContent);    $rsaHelper = new RsaHelper();    $sign = $rsaHelper->createSign($signContent);    error_log('sign ===========>'.$sign);    $businessParam['sign'] = $sign;    return $businessParam;  }  /**   * 公共参数   *   */  public static function getApiPubParam($apiMethod){    $ampBaseInfo = BusinessHelper::getAmpBaseInfo();    $param = [      'timestamp' => date('Y-m-d H:i:s') ,      'method' => $apiMethod,      'app_id' => formatArrValue($ampBaseInfo,'appid',config('param.amp.appid')),      'sign_type' =>self::SIGN_TYPE_RSA2,      'charset' =>self::FILE_CHARSET_UTF8,      'version' =>self::VERSION,    ];    return $param;  }  /**   * 获取签名的内容   */  public static function getSignContent($params) {    ksort($params);    $stringToBeSigned = "";    $i = 0;    foreach ($params as $k => $v) {      if (!empty($v) && "@" != substr($v, 0, 1)) {        if ($i == 0) {          $stringToBeSigned .= "$k" . "=" . "$v";        } else {          $stringToBeSigned .= "&" . "$k" . "=" . "$v";        }        $i++;      }    }    unset ($k, $v);    return $stringToBeSigned;  }  public static function convertArrToQueryParam($param){    $queryParam = [];    foreach ($param as $key => $val){      $obj = $key.'='.$val;      array_push($queryParam,$obj);    }    $queryStr = implode('&',$queryParam);    return $queryStr;  }  /**   * 转换字符集编码   * @param $data   * @param $targetCharset   * @return string   */  public static function characet($data, $targetCharset) {    if (!empty($data)) {      $fileType = self::FILE_CHARSET_UTF8;      if (strcasecmp($fileType, $targetCharset) != 0) {        $data = mb_convert_encoding($data, $targetCharset, $fileType);      }    }    return $data;  }  /**   * 获取业务参数内容   */  public static function getQrBizContent($page, $queryParam = [],$describe = ''){    if(is_array($queryParam)){      $queryParam = http_build_query($queryParam);    }    $obj = [      'url_param' => $page,      'query_param' => $queryParam,      'describe' => $describe    ];    $bizContent = json_encode($obj,JSON_UNESCAPED_UNICODE);    return $bizContent;  }}

//支付宝的api接口地址const API_DOMAIN = "https://openapi.alipay.com/gateway.do?";//获取支付宝二维码的接口方法const API_METHOD_GENERATE_QR = 'alipay.open.app.qrcode.create';//获取token的接口方法const API_METHOD_AUTH_TOKEN = 'alipay.system.oauth.token';//获取用户信息的接口方法const API_METHOD_GET_USER_INFO = 'alipay.user.info.share';//支付宝的签名方式，由RSA2和RSA两种const SIGN_TYPE_RSA2 = 'RSA2';//版本号，此处固定挑那些就可以了const VERSION = '1.0';//UTF8编码const FILE_CHARSET_UTF8 = "UTF-8";//GBK编码const FILE_CHARSET_GBK = "GBK";//二维码接口调用成功的 返回节点const RESPONSE_OUTER_NODE_QR = 'alipay_open_app_qrcode_create_response';//token接口调用成功的 返回节点const RESPONSE_OUTER_NODE_AUTH_TOKEN = 'alipay_system_oauth_token_response';//用户信息接口调用成功的 返回节点const RESPONSE_OUTER_NODE_USER_INFO = 'alipay_user_info_share_response';//错误的返回的时候的节点const RESPONSE_OUTER_NODE_ERROR_RESPONSE = 'error_response';const STATUS_CODE_SUCCESS = 10000;const STATUS_CODE_EXCEPT = 20000;

<?php/** * Created by PhpStorm. * User: Auser * Date: 2018/12/4 * Time: 15:37 */namespace App/Http/Helper;/** *$rsa2 = new Rsa2(); *$data = 'mydata'; //待签名字符串 *$strSign = $rsa2->createSign($data);   //生成签名 *$is_ok = $rsa2->verifySign($data, $strSign); //验证签名 */class RsaHelper{  private static $PRIVATE_KEY;  private static $PUBLIC_KEY;  function __construct(){    self::$PRIVATE_KEY = config('param.amp.private_key');    self::$PUBLIC_KEY = config('param.amp.public_key');  }  /**   * 获取私钥   * @return bool|resource   */  private static function getPrivateKey()  {    $privKey = self::$PRIVATE_KEY;    $privKey = "-----BEGIN RSA PRIVATE KEY-----".PHP_EOL.wordwrap($privKey, 64, PHP_EOL, true).PHP_EOL."-----END RSA PRIVATE KEY-----";    ($privKey) or die('您使用的私钥格式错误，请检查RSA私钥配置');    error_log('private_key is ===========>: '.$privKey);    return openssl_pkey_get_private($privKey);  }  /**   * 获取公钥   * @return bool|resource   */  private static function getPublicKey()  {    $publicKey = self::$PUBLIC_KEY;    $publicKey = "-----BEGIN RSA PRIVATE KEY-----".PHP_EOL.wordwrap($publicKey, 64, PHP_EOL, true).PHP_EOL."-----END RSA PRIVATE KEY-----";    error_log('public key is : ===========>'.$publicKey);    return openssl_pkey_get_public($publicKey);  }  /**   * 创建签名   * @param string $data 数据   * @return null|string   */  public function createSign($data = '')  {    // var_dump(self::getPrivateKey());die;    if (!is_string($data)) {      return null;    }    return openssl_sign($data, $sign, self::getPrivateKey(),OPENSSL_ALGO_SHA256 ) ? base64_encode($sign) : null;  }  /**   * 验证签名   * @param string $data 数据   * @param string $sign 签名   * @return bool   */  public function verifySign($data = '', $sign = '')  {    if (!is_string($sign) || !is_string($sign)) {      return false;    }    return (bool)openssl_verify(      $data,      base64_decode($sign),      self::getPublicKey(),      OPENSSL_ALGO_SHA256    );  }}

$originUserData = AmpHelper::getAmpUserInfoByAuthCode($code);echo $originUserData;

{  "alipay_user_info_share_response": {    "code": "10000",    "msg": "Success",    "user_id": "2088102104794936",    "avatar": "http://tfsimg.alipay.com/images/partner/T1uIxXXbpXXXXXXXX",    "province": "安徽省",    "city": "安庆",    "nick_name": "支付宝小二",    "is_student_certified": "T",    "user_type": "1",    "user_status": "T",    "is_certified": "T",    "gender": "F"  },  "sign": "ERITJKEIJKJHKKKKKKKHJEREEEEEEEEEEE"}