Python版支付宝集成插件源代码

czhtr

之前在做一项目的时候需要集成支付宝功能，网站是用python做的，参照支付宝的官方文档，写了以下代码（调试通过，能正常工作）:

# -*- coding: utf-8 -*-
#!/usr/bin/env python
# author: Robin Huang
# time  : 2009-03-30
import md5
class Alipay(object):
def __init__(self):
self.params = {}
# 支付宝gateway
self.pay_gate_way = 'https://www.alipay.com/cooperate/gateway.do'
# 安全码 ***处请填具体安全码
self.security_code = '***'
#---------------------------------------------------------------------------
# 根据订单生成支付宝接口URL
# <<<<< Protocol Param >>>>>
# @ input_charset: 编码方式
# @ service: 接口名称, 有两种方式 =>
#            1. trade_create_by_buyer (担保付款)
#            2. create_direct_pay_by_user (直接付款)
# @ partner : 商户在支付宝的用户ID
# @ show_url: 商品展示网址
# @ return_url: 交易付款成功后，显示给客户的页面
# @ sign_type: 签名方式
#
# <<<<< Business Param >>>>>
# @ subject: 商品标题
# @ body: 商品描述
# @ out_trade_no: 交易号（确保在本系统中唯一）
# @ price: 商品单价
# @ discount: 折扣 -**表示抵扣**元
# @ quantity: 购买数量
# @ payment_type: 支付类型
# @ logistics_type: 物流类型 => 1. POST (平邮) 2. EMS 3. EXPRESS (其他快递)
# @ logistics_fee: 物流费
# @ logistics_payment: 物流支付类型 =>
#                      1. SELLER_PAY (卖家支付) 2. BUYER_PAY (买家支付)
# @ seller_email: 卖家支付宝帐户email
#
# @return
#---------------------------------------------------------------------------
def create_order_alipay_url(self,
input_charset,
service,
partner,
show_url,
return_url,
sign_type,
subject,
body,
out_trade_no,
price,
discount,
quantity,
payment_type,
logistics_type,
logistics_fee,
logistics_payment,
seller_email
):
self.params['_input_charset'] = input_charset
self.params['service'] = service
self.params['partner'] = partner
self.params['show_url'] = show_url
self.params['return_url'] = return_url
self.params['subject'] = subject
self.params['body'] = body
self.params['out_trade_no'] = out_trade_no
self.params['price'] = price
self.params['discount'] = discount
self.params['quantity'] = quantity
self.params['payment_type'] = payment_type
self.params['logistics_type'] = logistics_type
self.params['logistics_fee'] = logistics_fee
self.params['logistics_payment'] = logistics_payment
self.params['seller_email'] = seller_email
# 返回结果
return self._create_url(self.params, sign_type)
def _create_url(self, params, sign_type='MD5'):
param_keys = params.keys()
# 支付宝参数要求按照字母顺序排序
param_keys.sort()
# 初始化待签名的数据
unsigned_data = ''
# 生成待签名数据
for key in param_keys:
unsigned_data += key + '=' + params[key]
if key != param_keys[-1]:
unsigned_data += '&'
# 添加签名密钥
unsigned_data += self.security_code
# 计算sign值
if sign_type == 'MD5':
M = md5.new()
M.update(unsigned_data)
sign = M.hexdigest()
else:
sign = ''
request_data = self.pay_gate_way + '?'
for key in param_keys:
request_data += key + '=' + params[key].decode('utf8').encode(params['_input_charset'])
request_data += '&'
request_data += 'sign=' + sign + '&sign_type=' + sign_type
# 返回结果
return request_data


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