Django实现登录随机验证码,Python学习(二)

    /    2019-03-18

3.代码实现

login视图

def acc_login(request):
    err_msg = {}
    today_str = datetime.date.today().strftime("%Y%m%d")
    verify_code_img_path = "%s/%s" %(settings.VERIFICATION_CODE_IMGS_DIR,
                                     today_str)
    if not os.path.isdir(verify_code_img_path):
        os.makedirs(verify_code_img_path,exist_ok=True)
    print("session:",request.session.session_key)
    #print("session:",request.META.items())
    random_filename = "".join(random.sample(string.ascii_lowercase,4))
    random_code = verify_code.gene_code(verify_code_img_path,random_filename)
    cache.set(random_filename, random_code,30)

    if request.method == "POST":

        username = request.POST.get('username')
        password = request.POST.get('password')
        _verify_code = request.POST.get('verify_code')
        _verify_code_key  = request.POST.get('verify_code_key')

        print("verify_code_key:",_verify_code_key)
        print("verify_code:",_verify_code)
        if cache.get(_verify_code_key) == _verify_code:
            print("code verification pass!")

            user = authenticate(username=username,password=password)
            if user is not None:
                login(request,user)
                request.session.set_expiry(60*60)
                return HttpResponseRedirect(request.GET.get("next"if request.GET.get("next"else "/")

            else:
                err_msg["error"] = 'Wrong username or password!'

        else:
            err_msg['error'] = "验证码错误!"

    return render(request,'login.html',{"filename":random_filename, "today_str":today_str, "error":err_msg})

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