python采用django框架实现支付宝即时到帐接口

import types 
from urllib import urlencode, urlopen 
from hashcompat import md5_constructor as md5<span style="white-space:pre">  </span>#见hashcompact.py 
from config import settings<span style="white-space:pre">     </span>#见config.py 
 
#字符串编解码处理 
def smart_str(s, encoding='utf-8', strings_only=False, errors='strict'): 
  if strings_only and isinstance(s, (types.NoneType, int)): 
    return s 
  if not isinstance(s, basestring): 
    try: 
      return str(s) 
    except UnicodeEncodeError: 
      if isinstance(s, Exception): 
        return ' '.join([smart_str(arg, encoding, strings_only, 
            errors) for arg in s]) 
      return unicode(s).encode(encoding, errors) 
  elif isinstance(s, unicode): 
    return s.encode(encoding, errors) 
  elif s and encoding != 'utf-8': 
    return s.decode('utf-8', errors).encode(encoding, errors) 
  else: 
    return s 
 
# 网关地址 
_GATEWAY = 'https://mapi.alipay.com/gateway.do"htmlcode">

""" 
The md5 and sha modules are deprecated since Python 2.5, replaced by the 
hashlib module containing both hash algorithms. Here, we provide a common 
interface to the md5 and sha constructors, preferring the hashlib module when 
available. 
""" 
 
try: 
  import hashlib 
  md5_constructor = hashlib.md5 
  md5_hmac = md5_constructor 
  sha_constructor = hashlib.sha1 
  sha_hmac = sha_constructor 
except ImportError: 
  import md5 
  md5_constructor = md5.new 
  md5_hmac = md5 
  import sha 
  sha_constructor = sha.new 
  sha_hmac = sha 



config.py




#-*- coding:utf-8 -*- 
 
class settings: 
 # 安全检验码，以数字和字母组成的32位字符 
 ALIPAY_KEY = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx' 
 
 ALIPAY_INPUT_CHARSET = 'utf-8' 
 
 # 合作身份者ID，以2088开头的16位纯数字 
 ALIPAY_PARTNER = 'xxxxxxxxxxxxxxxx' 
 
 # 签约支付宝账号或卖家支付宝帐户 
 ALIPAY_SELLER_EMAIL = 'ls@abc.com' 
 
 ALIPAY_SIGN_TYPE = 'MD5' 
 
 # 付完款后跳转的页面（同步通知） 要用 http://格式的完整路径，不允许加"htmlcode">

#确认支付 
def pay(request): 
  cbid=request.POST.get('id') 
  try: 
    cb=cBill.objects.get(id=cbid) 
  except ObjectDoesNotExist: 
    return HttpResponseRedirect("/err/no_object") 
   
  #如果网关是支付宝 
  if cb.cbank.gateway=='alipay': 
      tn=cb.id 
      subject='' 
      body='' 
      bank=cb.cbank.id 
      tf='%.2f' % cb.amount 
      url=create_direct_pay_by_user (tn,subject,body,bank,tf) 
 
  #如果网关是财付通 
  elif cb.cbank.gateway=='tenpay': 
    pass 
   
  #去支付页面 
  return HttpResponseRedirect (url) 
 
#alipay异步通知 
 
@csrf_exempt 
def alipay_notify_url (request): 
  if request.method == 'POST': 
    if notify_verify (request.POST): 
      #商户网站订单号 
      tn = request.POST.get('out_trade_no') 
      #支付宝单号 
      trade_no=request.POST.get('trade_no') 
      #返回支付状态 
      trade_status = request.POST.get('trade_status') 
      cb = cBill.objects.get(pk=tn) 
       
      if trade_status == 'TRADE_SUCCESS': 
        cb.exe() 
        log=Log(operation='notify1_'+trade_status+'_'+trade_no) 
        log.save() 
        return HttpResponse("success") 
      else: 
        #写入日志 
        log=Log(operation='notify2_'+trade_status+'_'+trade_no) 
        log.save() 
        return HttpResponse ("success") 
    else: 
      #黑客攻击 
      log=Log(operation='hack_notify_'+trade_status+'_'+trade_no+'_'+'out_trade_no') 
      log.save() 
  return HttpResponse ("fail") 
 
#同步通知 
 
def alipay_return_url (request): 
  if notify_verify (request.GET): 
    tn = request.GET.get('out_trade_no') 
    trade_no = request.GET.get('trade_no') 
    trade_status = request.GET.get('trade_status') 
      
    cb = cBill.objects.get(pk=tn) 
    log=Log(operation='return_'+trade_status+'_'+trade_no) 
    log.save() 
    return HttpResponseRedirect ("/public/verify/"+tn) 
  else: 
    #错误或者黑客攻击 
    log=Log(operation='err_return_'+trade_status+'_'+trade_no) 
    log.save() 
    return HttpResponseRedirect ("/") 
 
 
#外部跳转回来的链接session可能丢失，无法再进入系统。 
#客户可能通过xxx.com操作，但是支付宝只能返回www.xxx.com，域名不同，session丢失。 
def verify(request,cbid): 
  try: 
    cb=cBill.objects.get(id=cbid) 
    #如果订单时间距现在超过1天，跳转到错误页面！ 
    #避免网站信息流失 
     
    return render_to_response('public_verify.html',{'cb':cb},RequestContext(request)) 
  except ObjectDoesNotExist: 
    return HttpResponseRedirect("/err/no_object") 



view.py中的代码仅供参考！
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