#!/usr/bin/env python
# encoding: utf-8
'''
Created on 2011-1-5
@author: codeback@gmail.com
'''
import hashlib
import urllib2verfyURL={"https":"https://www.alipay.com/cooperate/gateway.do?service=notify_verify","http" :"http://notify.alipay.com/trade/notify_query.do?",}
gateway="https://www.alipay.com/cooperate/gateway.do"class alipay:def __init__(self,partner="您的淘宝身份",key="您的淘宝Key",sellermail="卖家邮箱",notifyurl="异步通知回调URL",returnurl="跳转回调URL",showurl="产品页面"):self.key=key;self.conf={'partner'         :   partner,'service'         :   "create_direct_pay_by_user",'payment_type'    :   "1",'seller_email'    :   sellermail,'notify_url'      :   notifyurl,'return_url'      :   returnurl,'show_url'        :   showurl,'_input_charset'  :   "UTF-8",'sign_type'       :   "MD5",#其他参数，如果有默认值定义在下面：'paymethod'       :   "",'mainname'        :   "",}def populateURLStr(self,params):ks=params.keys()ks.sort()rlt=''for k in ks:if params[k]==None or len(params[k])==0 \or k=="sign" or k=="sign_type" or k=="key":continuerlt=rlt+"&%s=%s"%(k,params[k])print "URL:"+rlt[1:]return rlt[1:]def buildSign(self,params):sign=hashlib.md5(self.populateURLStr(params)+self.key).hexdigest()print "md5 sign is %s" % sign;return sign'''校验支付宝返回的参数，交易成功的通知回调.校验分为两个步骤：检查签名是否正确、访问支付宝确认当前数据是由支付宝返回。params为支付宝传回的数据。'''def notifiyCall(self,params,verify=True,transport="http"):sign=Noneif params.has_key('sign'):sign=params['sign']locSign=self.buildSign(params)if sign==None or locSign!=sign:print "sign error."return "fail"if params['trade_status']!='TRADE_FINISHED' and  params['trade_status']!='TRADE_SUCCESS':return "fail"if not verify:return "success"else:print "Verify the request is call by alipay.com...."url = verfyURL[transport] + "&partner=%s&notify_id=%s"%(self.conf['partner'],params['notify_id'])response=urllib2.urlopen(url)html=response.read()print "aliypay.com return: %s" % htmlif html=='true':return "success"return "fail"'''生成提交到支付宝的表单，用户通过此表单将订单信息提交到支付宝。由params参数提供订单信息，必须包含以下几项内容：out_trade_no：订单号subject     :订单名称、或商品名称body        :订单备注、描述total_fee   :总额'''def createPayForm(self,params,method="POST",title="确认，支付宝付款"):params.update(self.conf)sign=self.buildSign(params)params['sign']=signele=""for nm in params:print "key in params : %s"%nmif params[nm]==None or len(params[nm])==0 or nm=='_input_charset':continueele = ele + " <input type='hidden' name='%s' value='%s' />" % (nm,params[nm])html='''<form name='alipaysubmit' action='%s?_input_charset=%s' method='%s' target='_blank'>%s<input type="submit" value="%s" /></form>''' % (gateway,params['_input_charset'],method,ele,title)return html