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  • 支付宝支付模板

    Url

    from django.contrib import admin
    from django.urls import path
    from app01 import views
    
    urlpatterns = [
        path('admin/', admin.site.urls),
        path('/update_order/', views.update_order),
        path('/pay_result/', views.pay_result),
        path('test/', views.TestView.as_view()),
    ]

    View

    from django.shortcuts import render, redirect, HttpResponse
    from rest_framework.views import APIView
    from django.views.decorators.csrf import csrf_exempt
    from rest_framework.response import Response
    import time
    from utils.pay import AliPay
    
    
    # Create your views here.
    
    def aliPay():
        obj = AliPay(
            appid="2016101600700776",
            app_notify_url="http://127.0.0.1:8000/update_order/",  # 如果支付成功,支付宝会向这个地址发送POST请求(校验是否支付已经完成)
            return_url="http://127.0.0.1:8000/pay_result/",  # 如果支付成功,重定向回到你的网站的地址。
            alipay_public_key_path="keys/alipay_public_2048.txt",  # 支付宝公钥
            app_private_key_path="keys/app_private_2048.txt",  # 应用私钥
            debug=True,  # 默认False,
        )
        return obj
    
    
    class TestView(APIView):
        def get(self, request, *args, **kwargs):
            return render(request, 'test.html')
    
        def post(self, request, *args, **kwargs):
            # 价格、购买的商品加密
            # 拼接成url
    
            alipay = aliPay()
    
            # 对购买的数据进行加密
            money = float(request.POST.get('price'))
            out_trade_no = "x2" + str(time.time())
            # 1. 在数据库创建一条数据:状态(待支付)
    
            query_params = alipay.direct_pay(
                subject="Mark疯狂英语",  # 商品简单描述
                out_trade_no=out_trade_no,  # 商户订单号
                total_amount=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)
    
            return redirect(pay_url)
    
    
    def pay_result(request):
        """
        支付完成后,跳转回的地址
        :param request:
        :return:
        """
        params = request.GET.dict()
        sign = params.pop('sign', None)
    
        alipay = aliPay()
    
        status = alipay.verify(params, sign)
    
        if status:
            return HttpResponse('支付成功')
        return HttpResponse('支付失败')
    
    
    # csrf_exempt = 注解来标识一个视图可以被跨域访问.
    @csrf_exempt
    def update_order(request):
        """
        支付成功后,支付宝向该地址发送的POST请求(用于修改订单状态)
        :param request:
        :return:
        """
        if request.method == 'POST':
            from urllib.parse import parse_qs
    
            body_str = request.body.decode('utf-8')
            post_data = parse_qs(body_str)
    
            post_dict = {}
            for k, v in post_data.items():
                post_dict[k] = v[0]
    
            alipay = aliPay()
    
            sign = post_dict.pop('sign', None)
            status = alipay.verify(post_dict, sign)
            if status:
                # 修改订单状态
                out_trade_no = post_dict.get('out_trade_no')
                print(out_trade_no)
                # 2. 根据订单号将数据库中的数据进行更新
                return HttpResponse('支付成功')
            else:
                return HttpResponse('支付失败')
        return HttpResponse('')

     Pay

    from datetime import datetime
    from Crypto.PublicKey import RSA
    from Crypto.Signature import PKCS1_v1_5
    from Crypto.Hash import SHA256
    from urllib.parse import quote_plus
    from urllib.parse import urlparse, parse_qs
    from base64 import decodebytes, encodebytes
    import json
    
    
    class AliPay(object):
        """
        支付宝支付接口(PC端支付接口)
        """
    
        def __init__(self, appid, app_notify_url, app_private_key_path,
                     alipay_public_key_path, return_url, debug=False):
            self.appid = appid
            self.app_notify_url = app_notify_url
            self.app_private_key_path = app_private_key_path
            self.app_private_key = None
            self.return_url = return_url
            with open(self.app_private_key_path) as fp:
                self.app_private_key = RSA.importKey(fp.read())
            self.alipay_public_key_path = alipay_public_key_path
            with open(self.alipay_public_key_path) as fp:
                self.alipay_public_key = RSA.importKey(fp.read())
    
            if debug is True:
                self.__gateway = "https://openapi.alipaydev.com/gateway.do"
            else:
                self.__gateway = "https://openapi.alipay.com/gateway.do"
    
        def direct_pay(self, subject, out_trade_no, total_amount, return_url=None, **kwargs):
            biz_content = {
                "subject": subject,
                "out_trade_no": out_trade_no,
                "total_amount": total_amount,
                "product_code": "FAST_INSTANT_TRADE_PAY",
                # "qr_pay_mode":4
            }
    
            biz_content.update(kwargs)
            data = self.build_body("alipay.trade.page.pay", biz_content, self.return_url)
            return self.sign_data(data)
    
        def build_body(self, method, biz_content, return_url=None):
            data = {
                "app_id": self.appid,
                "method": method,
                "charset": "utf-8",
                "sign_type": "RSA2",
                "timestamp": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
                "version": "1.0",
                "biz_content": biz_content
            }
    
            if return_url is not None:
                data["notify_url"] = self.app_notify_url
                data["return_url"] = self.return_url
    
            return data
    
        def sign_data(self, data):
            data.pop("sign", None)
            # 排序后的字符串
            unsigned_items = self.ordered_data(data)
            unsigned_string = "&".join("{0}={1}".format(k, v) for k, v in unsigned_items)
            sign = self.sign(unsigned_string.encode("utf-8"))
            # ordered_items = self.ordered_data(data)
            quoted_string = "&".join("{0}={1}".format(k, quote_plus(v)) for k, v in unsigned_items)
    
            # 获得最终的订单信息字符串
            signed_string = quoted_string + "&sign=" + quote_plus(sign)
            return signed_string
    
        def ordered_data(self, data):
            complex_keys = []
            for key, value in data.items():
                if isinstance(value, dict):
                    complex_keys.append(key)
    
            # 将字典类型的数据dump出来
            for key in complex_keys:
                data[key] = json.dumps(data[key], separators=(',', ':'))
    
            return sorted([(k, v) for k, v in data.items()])
    
        def sign(self, unsigned_string):
            # 开始计算签名
            key = self.app_private_key
            signer = PKCS1_v1_5.new(key)
            signature = signer.sign(SHA256.new(unsigned_string))
            # base64 编码,转换为unicode表示并移除回车
            sign = encodebytes(signature).decode("utf8").replace("
    ", "")
            return sign
    
        def _verify(self, raw_content, signature):
            # 开始计算签名
            key = self.alipay_public_key
            signer = PKCS1_v1_5.new(key)
            digest = SHA256.new()
            digest.update(raw_content.encode("utf8"))
            if signer.verify(digest, decodebytes(signature.encode("utf8"))):
                return True
            return False
    
        def verify(self, data, signature):
            if "sign_type" in data:
                sign_type = data.pop("sign_type")
            # 排序后的字符串
            unsigned_items = self.ordered_data(data)
            message = "&".join(u"{}={}".format(k, v) for k, v in unsigned_items)
            return self._verify(message, signature)

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  • 原文地址:https://www.cnblogs.com/Rivend/p/12000643.html
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