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tenpay.py
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tenpay.py
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#coding: utf-8
import hashlib
import urllib
from xml.dom import minidom
import pycurl
from cStringIO import StringIO
from random import randint
import datetime
from django.http import HttpResponseRedirect, HttpResponse
from django.conf import settings
from django.core.urlresolvers import reverse
from common import LOG
from payment.models import PayOrder
from user.models import Account
from tenant.models import Tenant
from tenant.utils import send_balance_increase_sms
partner = settings.TENPAY_PARTNER
key = settings.TENPAY_KEY
activate_host = settings.ACTIVATE_HOST
payment_order_gateurl = settings.TENPAY_PAYMENT_URL
recharge_exchange_rate = settings.RECHARGE_EXCHANGE_RATE
class ClientResponseHandler(object):
def __init__(self):
self._ClientResponseHandler()
def _ClientResponseHandler(self):
self.key = ""
self.parameters = dict()
self.debugInfo = ""
self.content = ""
def getKey(self):
return self.key
def setKey(self,key):
self.key = key
def setContent(self,content):
content = content.replace('<?xml version="1.0" encoding="GBK"?>','<?xml version="1.0" encoding="utf-8"?>')
doc = minidom.parseString(content)
dict1 = dict()
list1 = list()
root = doc.firstChild
for n in root.childNodes:
for i in n.childNodes:
dict1[i.parentNode.nodeName] = i.nodeValue
for n in root.childNodes:
if "text" not in n.nodeName:
list1.append(n.nodeName)
final_dict = {}.fromkeys(list1)
for item in dict1:
final_dict[item] = dict1[item]
for k,v in final_dict.items():
self.setParameter(k,v)
def getContent(self):
return self.content
def getParameter(self,parameter):
return self.parameters[parameter]
def setParameter(self,parameter,parameterValue):
self.parameters[parameter] = parameterValue if parameterValue == None else parameterValue.encode('utf-8')
def getALLParameters(self):
return self.parameters
def isTenpaySign(self):
signPars = ''
parms = self.parameters.keys()
parms.sort()
my_parms = [{key:self.parameters[key]} for key in parms]
for x in my_parms:
for k in x:
if x[k] and k != 'sign':
signPars += k + '=' + x[k] + '&'
signPars += 'key=' + self.key
sign = hashlib.md5(signPars.encode('utf-8')).hexdigest().lower()
tenpaySign = self.getParameter("sign").lower()
self._setDebugInfo(signPars + ' => sign:' + sign +
"tenpaySign: " + self.getParameter("sign"))
return sign == tenpaySign
def getDebugInfo(self):
return self.debugInfo
def getXmlEncode(self,xml):
pass
def _setDebugInfo(self,debugInfo):
self.debugInfo = debugInfo
class TenpayHttpClient(object):
def __init__(self):
self.TenpayHttpClient()
def TenpayHttpClient(self):
"""
init some variables
"""
self.reqContent = ""
self.resContent = ""
self.method = "POST"
self.certFile = ""
self.certPasswd = ""
self.certType = "PEM"
self.caFile = ""
self.errInfo = ""
self.timeOut = 120
self.responseCode = 0
def setReqContent(self,reqContent):
self.reqContent = reqContent
def getResContent(self):
return self.resContent
def setMethod(self,method):
self.method = method
def getErrInfo(self):
return self.errInfo
def setCertInfo(self,certFile,certPasswd,certType="PEM"):
self.certFile = certFile
self.certPasswd = certPasswd
self.certType = certType
def setCaInfo(self,caFile):
self.caFile = caFile
def setTimeOut(self,timeOut):
self.timeOut = timeOut
def call(self):
"""
perform curl call
"""
curl = pycurl.Curl()
# set timeout for curl
curl.setopt(pycurl.TIMEOUT,self.timeOut)
# verify ssl certificate for host
curl.setopt(pycurl.SSL_VERIFYHOST,1)
buff = StringIO()
# set output function for pycurl
curl.setopt(pycurl.WRITEFUNCTION,buff.write)
arr = self.reqContent.split('?')
# if post set postfields
if len(arr) >=2 and self.method == "post":
curl.setopt(pycurl.POST,1)
curl.setopt(pycurl.URL,arr[0])
curl.setopt(pycurl.POSTFIELDS,arr[1])
else:
curl.setopt(pycurl.URL,self.reqContent)
# if has ca will verify ssl certificate host
if self.caFile:
curl.setopt(pycurl.SSL_VERIFYHOST,1)
curl.setopt(pycurl.CAINFO,self.caFile)
else:
curl.setopt(pycurl.SSL_VERIFYHOST,0)
# perform curl request and get value from write buff(stringIO)
curl.perform()
res = buff.getvalue()
self.responseCode = curl.getinfo(pycurl.HTTP_CODE)
# if curl performed failed, get error information
if not res:
self.errInfo = "call http err :" + curl.errstr()
curl.close()
return False
# else if response code not equal 200
elif self.responseCode != 200:
self.errInfo = "call http err httpcode=" + str(self.responseCode)
curl.close()
return False
curl.close()
self.resContent = res
return True
def getResponseCode(self):
return self.responseCode()
class RequestHandler(object):
def __init__(self):
self.RequestHandler()
def RequestHandler(self):
self.gateUrl = 'https://www.tenpay.com/cgi-bin/v1.0/service_gate.cgi'
self.key = ''
self.parameters = dict()
self.debuginfo = ''
def init(self):
pass
def getGateURL(self):
return self.gateUrl
def setGateURL(self,gateUrl):
self.gateUrl = gateUrl
def getKey(self):
return self.key
def setKey(self,key):
self.key = key
def getParameter(self,parameter):
return self.parameters[parameter]
def setParameter(self,parameter,parameterValue):
self.parameters[parameter] = parameterValue if parameterValue == None else parameterValue.encode('utf-8')
def getAllParameters(self):
return self.parameters
def getRequestURL(self):
self.createSign()
parms = self.parameters.items()
parms.sort()
reqPar = urllib.urlencode(parms)
requestURL = self.getGateURL() + '?' + reqPar
return requestURL
def getDebugInfo(self):
return self.debuginfo
def doSend(self):
return HttpResponseRedirect(self.getRequestURL())
def createSign(self):
signPars = ''
parms = self.parameters.keys()
parms.sort()
my_parms = [{key:self.parameters[key]} for key in parms]
for x in my_parms:
for k in x:
if x[k] != '' and k != 'sign':
signPars += k + '=' + x[k] + '&'
signPars += 'key=' + self.key
sign = hashlib.md5(signPars).hexdigest().lower()
self.setParameter('sign',sign)
self._setDebugInfo(signPars + ' => sign:' + sign)
def _setDebugInfo(self,debugInfo):
self.debuginfo=debugInfo
class ResponseHandler(object):
def __init__(self,request):
self.request = request
self.ResponseHandler()
def ResponseHandler(self):
self.key = ""
self.parameters = dict()
self.debugInfo = ""
#GET
gets = self.request.GET
for k in gets:
self.parameters[k] = gets[k]
#POST
posts = self.request.POST
for k in posts:
self.parameters[k] = posts[k]
def getKey(self):
return self.key
def setKey(self,key):
self.key = key
def getParameter(self,parameter):
return self.parameters[parameter]
def setParameter(self,parameter,parameterValue):
self.parameters[parameter] = parameterValue if parameterValue == None else parameterValue.encode('utf-8')
def getALLParameters(self):
return self.parameters
def isTenpaySign(self):
signPars = ''
parms = self.parameters.keys()
parms.sort()
my_parms = [{key:self.parameters[key]} for key in parms]
for x in my_parms:
for k in x:
if x[k] != '' and k != 'sign':
signPars += k + '=' + x[k] + '&'
signPars += 'key=' + self.key
sign = hashlib.md5(signPars.encode('utf-8')).hexdigest().lower()
tenpaySign = self.getParameter("sign").lower()
self._setDebugInfo(signPars + "<br />" +" => sign: " + sign + "<br />" +\
"tenpaySign: " + self.getParameter("sign"))
return ( sign == tenpaySign )
def getDebugInfo(self):
return self.debugInfo
def _setDebugInfo(self,debugInfo):
self.debugInfo = debugInfo
def gen_order(goods_name,total_fee,bank_type,send_sms,request):
randNum = randint(1000,9999)
out_trade_no = datetime.datetime.now().strftime('%Y%m%d%H%M%S') + str(randNum)
reqHandler = RequestHandler()
reqHandler.init()
reqHandler.setKey(key)
reqHandler.setGateURL(payment_order_gateurl)
reqHandler.setParameter("total_fee",total_fee)
reqHandler.setParameter("spbill_create_ip",request.META["REMOTE_ADDR"])
reqHandler.setParameter("return_url",activate_host + reverse('order-return'))
reqHandler.setParameter("partner",partner)
reqHandler.setParameter("out_trade_no",out_trade_no)
reqHandler.setParameter("notify_url",activate_host + reverse('order-notify'))
reqHandler.setParameter("body",goods_name)
reqHandler.setParameter("bank_type",bank_type)
reqHandler.setParameter("fee_type","1")
#可选参数
reqHandler.setParameter("sign_type","MD5")
reqHandler.setParameter("service_version","1.0")
reqHandler.setParameter("input_charset","utf-8")
reqHandler.setParameter("sign_key_index","1")
#业务可选参数
reqHandler.setParameter("attach","")
reqHandler.setParameter("product_fee","")
reqHandler.setParameter("transport_fee","")
reqHandler.setParameter("time_start",datetime.datetime.now().strftime('%Y%m%d%H%M%S'))
reqHandler.setParameter("time_expire","")
reqHandler.setParameter("buyer_id","")
reqHandler.setParameter("goods_tag","")
reqUrl = reqHandler.getRequestURL()
allParameter = reqHandler.getAllParameters()
pay_order = PayOrder(
username = request.session['user_name'],
user_id = request.session['user_id'],
tenant_id = request.session['tenant_id'],
#username = 'lmh2506@163.com',
#user_id = '123',
#tenant_id = '123',
goods_name = goods_name,
trade_no = out_trade_no,
total_fee = total_fee,
send_sms = send_sms,
payment_info = 0,
requrl = reqUrl
)
pay_order.save()
return reqUrl,allParameter
def return_url(request):
#得到财付通的payreturn
resHandler = ResponseHandler(request)
resHandler.setKey(key)
#验证财付通返回的URL中的信息
if resHandler.isTenpaySign():
notify_id = resHandler.getParameter("notify_id")
out_trade_no = resHandler.getParameter("out_trade_no")
transaction_id = resHandler.getParameter("transaction_id")
total_fee = resHandler.getParameter("total_fee")
discount = resHandler.getParameter("discount")
trade_state = resHandler.getParameter("trade_state")
trade_mode = resHandler.getParameter("trade_mode")
#验证返回的URL中的trade_state 和 trade_mode
if trade_state == "0" and trade_mode == "1":
# 此处记录不可靠
#p = PayOrder.objects.get(trade_no=out_trade_no)
#p.transaction_id = transaction_id
#p.trade_state = trade_state
#p.trade_mode = trade_mode
#p.payment_info = 1
#p.save()
return resHandler.getALLParameters()
else:
return False
#return resHandler.getDebugInfo()
def notify_url(request):
#首先得到财付通的发来的GET请求
resHandler = ResponseHandler(request)
resHandler.setKey(key)
if resHandler.isTenpaySign():
#得到notify_id
notify_id = resHandler.getParameter("notify_id")
LOG.debug("got notify_id: %s" % notify_id)
queryReq = RequestHandler()
queryReq.init()
queryReq.setKey(key)
queryReq.setGateURL("https://gw.tenpay.com/gateway/verifynotifyid.xml")
queryReq.setParameter("partner",partner)
queryReq.setParameter("notify_id",notify_id)
httpClient = TenpayHttpClient()
httpClient.setTimeOut(5)
httpClient.setReqContent(queryReq.getRequestURL())
LOG.debug("queryReq.getRequestURL() : %s" % queryReq.getRequestURL())
#根据得到的notify_id再次到财付通查询验证订单消息
if httpClient.call():
#负责解析httpClient从财付通得到的xml格式中的内容
queryRes = ClientResponseHandler()
#加载由httpClient返回的内容
queryRes.setContent(httpClient.getResContent())
LOG.debug("queryRes.getALLParameters(): %s" % queryRes.getALLParameters())
LOG.debug("httpClient.getResContent() : %s" % httpClient.getResContent())
queryRes.setKey(key)
if queryRes.isTenpaySign() and queryRes.getParameter("retcode") == "0" and queryRes.getParameter("trade_state") == "0" and queryRes.getParameter("trade_mode") == "1":
out_trade_no = queryRes.getParameter("out_trade_no")
transaction_id = queryRes.getParameter("transaction_id")
trade_state = queryRes.getParameter("trade_state")
trade_mode = queryRes.getParameter("trade_mode")
total_fee = queryRes.getParameter("total_fee")
discount = queryRes.getParameter("discount")
#开始处理业务
#注意验证订单不要重复
#注意判断返回金额
p = PayOrder.objects.get(trade_no=out_trade_no)
if p.total_fee == int(total_fee) and p.payment_info != '2':
p.transaction_id = transaction_id
p.trade_state = trade_state
p.trade_mode = trade_mode
p.ret_code = queryRes.getParameter("retcode")
p.ret_msg = queryRes.getParameter("retmsg")
p.payment_info = 2
p.save()
try:
tenant_id = p.tenant_id
tenant = Tenant.objects.get(tenant_id=tenant_id)
increase = (int(total_fee) * int(recharge_exchange_rate))
tenant.balance += increase
tenant.save()
if p.send_sms:
send_balance_increase_sms(p, tenant, increase)
except Exception,e:
LOG.error(e)
raise e
else:
pass
#处理完毕
LOG.debug("Trade completed processed: out_trade_no: %s\n total_fee:%s\n transaction_id:%s\n" % (out_trade_no,total_fee,transaction_id))
return "success"
else:
LOG.debug("Check sign failed or trade err: trade_state=%s\n retcode=%s\n retmsg=%s\n" % (queryRes.getParameter("trade_state"),
queryRes.getParameter("ret_code"),
queryRes.getParameter("retmsg")))
return "fail"
else:
LOG.debug("Communication with tenpay failed: responsecode=%s\n error_info=%s\n" % (httpClient.getResponseCode(),httpClient.getErrInfo()))
return "fail"
return "fail"