10-支付功能
一、支付功能
1、Pycharm远程代码调试
通过设置Pycharm来调试远端的服务器，为啥要用Pycharm调试远端服务器的代码？是因为关于第三方支付以及第三方登录，都是有一个回调的URL，这个URL一般指向的是服务器的IP地址，如何将本地代码上传到服务器中？
在windows下如何连接远程服务器呢？下载一个轻量级的连接远程服务器的客户端secureCRT。（下载注册机注册）
在这里面指明远程服务器的Hsotname与Username就可以连接远程服务器啦。连接远程服务器，过一段时间会自动退出来，怎么防止它退出来呢？安装一个工具可以防止它退出来：
yum install tmux #centos 7 屏幕管理里面很好用的
直接命令tmux就可以进入屏幕管理，这样客户端就不会关闭掉。创建一个文件夹mkdir projects,新建其他用户，最好不要用root用户。进入新建的目录继续新建目录mkdir MxShop，建好之后就可以去Pycharm配置啦
tmux
这样做的目的，就是在本地写的代码会映射到阿里云服务器上。接下来就可以将本地代码上传到云服务器啦。仔细看也可以将服务器的代码下载下来，甚至也可以同步。
上传之后，不代表可以调试远程服务器的代码，必须还需要在远程服务器上创建虚拟环境，还需要在虚拟服务器上安装python版本与项目python版本一致。同时在本地将数据库传输到阿里云服务器的数据库上，需要进行相关设置，否则数据库端口不对外开放。
2、支付宝公钥、私钥和沙箱环境的配置
为了测试支付环境，支付宝必须需要企业账号，我们个人开发者测试没有企业账号，因此支付宝提供了沙箱环境供给个人测试支付。
在接口文档中，有很多支付接口。
这样就完成沙箱环境的配置。
3、支付宝支付源码解读
虚拟环境安装支付宝源码所需要的包：然后utils下面建立alipay.py文件，将下面代码复制进去
pip3 install -i https//pypi.douban.com/simple pycryptodome
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from datetime import datetime
from Crypto.PublicKey import RSA
from Crypto.Signature import PKCS1_v1_5
from Crypto.Hash import SHA256
from base64 import b64encode, b64decode
from urllib.parse import quote_plus
from urllib.parse import urlparse, parse_qs
from urllib.request import urlopen
from base64 import decodebytes, encodebytes
import json
class AliPay(object):
"""
支付宝支付接口
"""
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.import_key(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("\n", "")
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)
if __name__ == "__main__":
return_url = 'http://127.0.0.1:8000/?total_amount=100.00×tamp=2017-08-15+23%3A53%3A34&sign=e9E9UE0AxR84NK8TP1CicX6aZL8VQj68ylugWGHnM79zA7BKTIuxxkf%2FvhdDYz4XOLzNf9pTJxTDt8tTAAx%2FfUAJln4WAeZbacf1Gp4IzodcqU%2FsIc4z93xlfIZ7OLBoWW0kpKQ8AdOxrWBMXZck%2F1cffy4Ya2dWOYM6Pcdpd94CLNRPlH6kFsMCJCbhqvyJTflxdpVQ9kpH%2B%2Fhpqrqvm678vLwM%2B29LgqsLq0lojFWLe5ZGS1iFBdKiQI6wZiisBff%2BdAKT9Wcao3XeBUGigzUmVyEoVIcWJBH0Q8KTwz6IRC0S74FtfDWTafplUHlL%2Fnf6j%2FQd1y6Wcr2A5Kl6BQ%3D%3D&trade_no=2017081521001004340200204115&sign_type=RSA2&auth_app_id=2016080600180695&charset=utf-8&seller_id=2088102170208070&method=alipay.trade.page.pay.return&app_id=2016080600180695&out_trade_no=20170202185&version=1.0'
o = urlparse(return_url)
query = parse_qs(o.query)
processed_query = {}
ali_sign = query.pop("sign")[0]
alipay = AliPay(
appid="xxxxxxxxx", #支付宝沙盒环境中的appID
app_notify_url="http://127.0.0.1:8000/alipay/return/",
app_private_key_path="../trade/keys/private_2048.txt",
alipay_public_key_path="../trade/keys/alipay_key_2048.txt", # 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, 路径是相对路径
debug=True, # 默认False,
return_url="http://127.0.0.1:8000/alipay/return/"
)
for key, value in query.items():
processed_query[key] = value[0]
print (alipay.verify(processed_query, ali_sign))
url = alipay.direct_pay(
subject="测试订单2",
out_trade_no="20170202sss",
total_amount=100,
return_url="http://127.0.0.1:8000/alipay/return/"
)
re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url)
print(re_url)
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将打印的路由拿到浏览器中访问。利用沙盒环境中测试账号登录支付查看是否正常。
4、django集成支付宝notify_url和return_url接口
MxShop/settings.py:
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#支付宝相关设置
private_key_path = os.path.join(BASE_DIR, 'apps/trade/keys/private_2048.txt')
ali_pub_key_path = os.path.join(BASE_DIR, 'apps/trade/keys/alipay_key_2048.txt')
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trade/views.py:
将noyify_url以及return_url都改成服务器地址，如果是远程服务就改成远程服务器地址。
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from django.shortcuts import redirect
from rest_framework.views import APIView
from utils.alipay import AliPay
from MxShop.settings import ali_pub_key_path, private_key_path
from rest_framework.response import Response
class AliPayview(APIView):
def get(self, request):
"""
处理支付宝的return_url返回
:param request:
:return:
"""
processed_dict = {}
for key, value in request.GET.items():
processed_dict[key] = value
sign = processed_dict.pop("sign", None)
alipay = AliPay(
appid="xxxxxxxxx",
app_notify_url="http://127.0.0.1:8000/alipay/return/",
app_private_key_path=private_key_path,
alipay_public_key_path=ali_pub_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_url="http://127.0.0.1:8000/alipay/return/"
)
verify_re = alipay.verify(processed_dict, sign)
if verify_re is True:
order_sn = processed_dict.get('out_trade_no', None)
trade_no = processed_dict.get('trade_no', None)
trade_status = processed_dict.get('trade_status', None)
existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
for existed_order in existed_orders:
existed_order.pay_status = trade_status
existed_order.trade_no = trade_no
existed_order.pay_time = datetime.now()
existed_order.save()
response = redirect("index")
response.set_cookie("nextPath", "pay", max_age=3)
return response
else:
response = redirect("index")
return response
def post(self, request):
"""
处理支付宝的notify_url
:param request:
:return:
"""
processed_dict = {}
for key, value in request.POST.items():
processed_dict[key] = value
sign = processed_dict.pop("sign", None)
alipay = AliPay(
appid="",
app_notify_url="http://127.0.0.1:8000/alipay/return/",
app_private_key_path=private_key_path,
alipay_public_key_path=ali_pub_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_url="http://127.0.0.1:8000/alipay/return/"
)
verify_re = alipay.verify(processed_dict, sign)
if verify_re is True:
order_sn = processed_dict.get('out_trade_no', None)
trade_no = processed_dict.get('trade_no', None)
trade_status = processed_dict.get('trade_status', None)
existed_orders = OrderInfo.objects.filter(order_sn=order_sn)
for existed_order in existed_orders:
order_goods = existed_order.goods.all()
for order_good in order_goods:
goods = order_good.goods
goods.sold_num += order_good.goods_num
goods.save()
existed_order.pay_status = trade_status
existed_order.trade_no = trade_no
existed_order.pay_time = datetime.now()
existed_order.save()
return Response("success")
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MxShop/settings.py:
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from trade.views import AliPayview
urlpatterns = [
path('alipay/return/',AliPayview.as_view(),name="alipay"),
]
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trade/serializers.py:
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class OrderDetailSerializer(serializers.ModelSerializer):
#OrderInfo中的外键order需要设置relate_name
goods = OrderGoodsSerializer(many=True)
alipay_url = serializers.SerializerMethodField(read_only=True)
def get_alipay_url(self, obj):
alipay = AliPay(
appid="xxxxxx",
app_notify_url="http://127.0.0.1:8000/alipay/return/",
app_private_key_path=private_key_path,
alipay_public_key_path=ali_pub_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_url="http://127.0.0.1:8000/alipay/return/"
)
url = alipay.direct_pay(
subject=obj.order_sn,
out_trade_no=obj.order_sn,
total_amount=obj.order_amount,
return_url="http://127.0.0.1:8000/alipay/return/"
)
re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url)
return re_url
class Meta:
model = OrderInfo
fields = "__all__"
class OrderSerializer(serializers.ModelSerializer):
user = serializers.HiddenField(
default=serializers.CurrentUserDefault()
)
pay_status = serializers.CharField(read_only=True)
order_sn = serializers.CharField(read_only=True)
trade_no = serializers.CharField(read_only=True)
pay_time = serializers.CharField(read_only=True)
alipay_url = serializers.SerializerMethodField(read_only=True)
def get_alipay_url(self,obj):
alipay = AliPay(
appid="xxxxxxxx",
app_notify_url="http://127.0.0.1:8000/alipay/return/",
app_private_key_path=private_key_path,
alipay_public_key_path=ali_pub_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_url="http://127.0.0.1:8000/alipay/return/"
)
url = alipay.direct_pay(
subject=obj.order_sn,
out_trade_no=obj.order_sn,
total_amount=obj.order_amount,
return_url="http://127.0.0.1:8000/alipay/return/"
)
re_url = "https://openapi.alipaydev.com/gateway.do?{data}".format(data=url)
return re_url
def generate_order_sn(self):
#当前时间+userID+随机数
from random import Random
random_int = Random()
order_sn = "{time_str}{userid}{ranstr}".format(time_str=time.strftime("%Y%m%d%H%M%S"),
userid=self.context["request"].user.id,ranstr=random_int.randint(10,99))
return order_sn
def validate(self, attrs):
attrs["order_sn"] = self.generate_order_sn()
return attrs
class Meta:
model = OrderInfo
fields = "__all__"
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为了让支付宝支付后能将网页跳转到网购页面，因此需要将前端vue的用django控制，django控制需要将前端的静态文件以及首页放在django项目文件下，在dos命令中的前端项目路径下运行这个，将vue的打包成静态文件。
cnpm run build
文件中将index.html放在template下面，其他文件全部放在static文件下，然后去项