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# -----------------------------------------------------------------------------
# File Name: wx_app_pay.py
# Author: X. Peng
# -----------------------------------------------------------------------------
# -----------------------------------------------------------------------------
# Imports
# -----------------------------------------------------------------------------
# -----------------------------------------------------------------------------
# Constants
# -----------------------------------------------------------------------------
# -----------------------------------------------------------------------------
# Functions
# -----------------------------------------------------------------------------
# -----------------------------------------------------------------------------
# Classes
# -----------------------------------------------------------------------------
import requests
import hashlib
import time
from xml.etree import cElementTree as etree
import random
from urllib import parse
from app.api.engine import config, env
def genNonce_str():
"""."""
sss = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
s = ''
for i in range(32):
s = s + random.choice(sss)
return s
class WXPay(object):
"""微信H5支付."""
def __init__(self, out_trade_no, body, total_fee, remote_addr, notify_url):
"""线上：tamper.tanpuyun.com
测试：testtamper.tanpuyun.com"""
self.timeStamp = int(time.time())
self.req_url = 'https://api.mch.weixin.qq.com/pay/unifiedorder'
self.appid = 'wx3ad4c5856975a2c4'
self.mch_id = '1515329071'
self.nonce_str = genNonce_str()
self.sign = None
self.sign_type = 'MD5'
self.body = body
self.out_trade_no = out_trade_no
self.total_fee = total_fee
self.spbill_create_ip = remote_addr
self.notify_url = notify_url
self.trade_type = 'APP'
self.key = 'eqwor3wquevncz9384ssp438oarefskl'
self.getStringSign()
self.getData()
self.getPrepayId()
self.getPaySign()
def getStringSign(self):
"""."""
self.string_sign_temp = 'appid={0}&body={1}&mch_id={2}&nonce_str={3}¬ify_url={4}&out_trade_no={5}&sign_type={6}&spbill_create_ip={7}&total_fee={8}&trade_type={9}&key={10}'.format(
self.appid,
self.body,
self.mch_id,
self.nonce_str,
self.notify_url,
self.out_trade_no,
self.sign_type,
self.spbill_create_ip,
self.total_fee,
self.trade_type,
self.key
)
def getData(self):
"""."""
self.sign = hashlib.md5(self.string_sign_temp.encode("utf-8")).hexdigest().upper()
self.data = {
'appid': self.appid,
'body': self.body,
'mch_id': self.mch_id,
'nonce_str': self.nonce_str,
'notify_url': self.notify_url,
'out_trade_no': self.out_trade_no,
'sign_type': self.sign_type,
'spbill_create_ip': self.spbill_create_ip,
'total_fee': self.total_fee,
'trade_type': self.trade_type,
'sign': self.sign
}
def dict2xml(self, dict_):
"""将dict转为要发送到微信服务器的xml格式."""
s = ""
for k, v in dict_.items():
s += "<{0}>{1}</{0}>".format(k, v)
s = "<xml>{0}</xml>".format(s)
return s.encode("utf-8")
def xml2dict(self, content):
"""将从微信服务器接收到的xml转为dict."""
raw = {}
root = etree.fromstring(content)
for child in root:
raw[child.tag] = child.text
return raw
def getPrepayId(self):
"""."""
res = requests.post(self.req_url, data=self.dict2xml(self.data))
res = self.xml2dict(res.content)
self.prepay_id = res['prepay_id']
def getPaySign(self):
"""."""
sign_string = 'appid={0}&noncestr={1}&package={2}&partnerid={3}&prepayid={4}×tamp={5}&key={6}'.format(
self.appid, self.nonce_str, 'Sign=WXPay', self.mch_id, self.prepay_id, self.timeStamp, self.key)
self.paySign = hashlib.md5(sign_string.encode("utf-8")).hexdigest().upper()
def getReturnParams(self):
"""."""
params = {'appid': self.appid, 'noncestr': self.nonce_str, 'package': 'Sign=WXPay', 'partnerid': self.mch_id, 'prepayid': self.prepay_id,
'timestamp': self.timeStamp, 'sign': self.paySign}
return params
if __name__ == '__main__':
out_trade_no = '201812102324324134112'
body = 'APP支付测试'
total_fee = 0.01
remote_addr = '101.95.188.178'
wx = WXPay(out_trade_no, body, total_fee, remote_addr)
print(wx.getReturnParams())