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支付宝简单使用

news 来源：原创 2024/5/4 11:02:25

支付宝沙箱测试使用

调用alipay接口

            # 4 调用alipay接口
            import time
            alipay = self.get_alipay()
            # 生成支付的url
            query_params = alipay.direct_pay(
                subject="xxxx",  # 商品简单描述
                out_trade_no="x345" + str(time.time()),  # 商户订单号
                total_amount=pay_money,  # 交易金额(单位: 元 保留俩位小数)
            )

            pay_url = "https://openapi.alipaydev.com/gateway.do?{}".format(query_params)

            res.data={
                "url":pay_url
            }

self.get_alipay.py

    def get_alipay(self):
        # 沙箱环境地址：https://openhome.alipay.com/platform/appDaily.htm?tab=info
        app_id = "2016091100486897"
        # POST请求，用于最后的检测
        notify_url = "http://47.94.172.250:8804/page2/"
        # notify_url = "http://www.wupeiqi.com:8804/page2/"
        # GET请求，用于页面的跳转展示
        return_url = "http://47.94.172.250:8804/page2/"
        # return_url = "http://www.wupeiqi.com:8804/page2/"
        merchant_private_key_path = "keys/app_private_2048.txt"
        alipay_public_key_path = "keys/alipay_public_2048.txt"

        alipay = AliPay(
            appid=app_id,
            app_notify_url=notify_url,
            return_url=return_url,
            app_private_key_path=merchant_private_key_path,
            alipay_public_key_path=alipay_public_key_path,  # 支付宝的公钥，验证支付宝回传消息使用，不是你自己的公钥
            debug=True,  # 默认False,
        )
        return alipay

引用的from api.utils.pay import AliPay

  1 from datetime import datetime
  2 from Crypto.PublicKey import RSA
  3 from Crypto.Signature import PKCS1_v1_5
  4 from Crypto.Hash import SHA256
  5 from urllib.parse import quote_plus
  6 from urllib.parse import urlparse, parse_qs
  7 from base64 import decodebytes, encodebytes
  8 import json
  9 
 10 
 11 class AliPay(object):
 12     """
 13     支付宝支付接口(PC端支付接口)
 14     """
 15 
 16     def __init__(self, appid, app_notify_url, app_private_key_path,
 17                  alipay_public_key_path, return_url, debug=False):
 18         self.appid = appid
 19         self.app_notify_url = app_notify_url
 20         self.app_private_key_path = app_private_key_path
 21         self.app_private_key = None
 22         self.return_url = return_url
 23         with open(self.app_private_key_path) as fp:
 24             self.app_private_key = RSA.importKey(fp.read())
 25         self.alipay_public_key_path = alipay_public_key_path
 26         with open(self.alipay_public_key_path) as fp:
 27             self.alipay_public_key = RSA.importKey(fp.read())
 28 
 29         if debug is True:
 30             self.__gateway = "https://openapi.alipaydev.com/gateway.do"
 31         else:
 32             self.__gateway = "https://openapi.alipay.com/gateway.do"
 33 
 34     def direct_pay(self, subject, out_trade_no, total_amount, return_url=None, **kwargs):
 35         biz_content = {
 36             "subject": subject,
 37             "out_trade_no": out_trade_no,
 38             "total_amount": total_amount,
 39             "product_code": "FAST_INSTANT_TRADE_PAY",
 40             # "qr_pay_mode":4
 41         }
 42 
 43         biz_content.update(kwargs)
 44         data = self.build_body("alipay.trade.page.pay", biz_content, self.return_url)
 45         return self.sign_data(data)
 46 
 47     def build_body(self, method, biz_content, return_url=None):
 48         data = {
 49             "app_id": self.appid,
 50             "method": method,
 51             "charset": "utf-8",
 52             "sign_type": "RSA2",
 53             "timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
 54             "version": "1.0",
 55             "biz_content": biz_content
 56         }
 57 
 58         if return_url is not None:
 59             data["notify_url"] = self.app_notify_url
 60             data["return_url"] = self.return_url
 61 
 62         return data
 63 
 64     def sign_data(self, data):
 65         data.pop("sign", None)
 66         # 排序后的字符串
 67         unsigned_items = self.ordered_data(data)
 68         unsigned_string = "&".join("{0}={1}".format(k, v) for k, v in unsigned_items)
 69         sign = self.sign(unsigned_string.encode("utf-8"))
 70         # ordered_items = self.ordered_data(data)
 71         quoted_string = "&".join("{0}={1}".format(k, quote_plus(v)) for k, v in unsigned_items)
 72 
 73         # 获得最终的订单信息字符串
 74         signed_string = quoted_string + "&sign=" + quote_plus(sign)
 75         return signed_string
 76 
 77     def ordered_data(self, data):
 78         complex_keys = []
 79         for key, value in data.items():
 80             if isinstance(value, dict):
 81                 complex_keys.append(key)
 82 
 83         # 将字典类型的数据dump出来
 84         for key in complex_keys:
 85             data[key] = json.dumps(data[key], separators=(',', ':'))
 86 
 87         return sorted([(k, v) for k, v in data.items()])
 88 
 89     def sign(self, unsigned_string):
 90         # 开始计算签名
 91         key = self.app_private_key
 92         signer = PKCS1_v1_5.new(key)
 93         signature = signer.sign(SHA256.new(unsigned_string))
 94         # base64 编码，转换为unicode表示并移除回车
 95         sign = encodebytes(signature).decode("utf8").replace("\n", "")
 96         return sign
 97 
 98     def _verify(self, raw_content, signature):
 99         # 开始计算签名
100         key = self.alipay_public_key
101         signer = PKCS1_v1_5.new(key)
102         digest = SHA256.new()
103         digest.update(raw_content.encode("utf8"))
104         if signer.verify(digest, decodebytes(signature.encode("utf8"))):
105             return True
106         return False
107 
108     def verify(self, data, signature):
109         if "sign_type" in data:
110             sign_type = data.pop("sign_type")
111         # 排序后的字符串
112         unsigned_items = self.ordered_data(data)
113         message = "&".join(u"{}={}".format(k, v) for k, v in unsigned_items)
114         return self._verify(message, signature)
115 
116 pay.py