auth组件的使用

from django.contrib import auth
from django.contrib.auth.models import User
from django.contrib.auth.decorators import login_required


# Create your views here.
def reg(request):
    form_obj = MyRegForm()
    if request.method == 'POST':
        # 调用父类初始化
        form_obj = MyRegForm(request.POST)
        if form_obj.is_valid():
            dic = request.POST.dict()
            q = dic.pop('csrfmiddlewaretoken')
            print(q)
            q = dic.pop('confirm_password')
            #不pop应该也没有什么问题，因为打散后就是key=valued
            User.objects.create_user(**dic)
            return HttpResponse("OK")

    return render(request, 'reg.html', locals())


def login(request):
    lon_obj = MyloginForm()
    if request.method == 'POST':
        #调用父类初始化
        lon_obj = MyloginForm(request.POST)
        if lon_obj.is_valid():
            username = request.POST.get('username')
            password = request.POST.get('password')
            #需要用加密的方式存入auth表中 才可以使用authenticate 不然一直返回None
            user_obj = auth.authenticate(username=username, password=password)
            if not user_obj:
                return render(request, 'login.html', locals())
            else:
                request.session['password'] = password
                request.session['is_login'] = True
                auth.login(request, user_obj)
                #在没有登录的情况下，如果访问了某个需要权限页面，那么就要跳转到登录页面，但需要保存那个页面，登录后应该返回来
                path = request.GET.get("next") or "/index/"
                print(path)
                return redirect(path)
    return render(request, 'login.html', locals())

#没有登陆时 访问的那个页面会当成参数 添加到后面
#默认是跳转到/accounts/login/ 需要配置LOGIN_URL = '/login/'
@login_required
def index(request):
    a = request.session.values()
    #哪怕你拿到了session值 我还要判断下在登录的时候 我设置的值是否正确，如果密码正确，session正确那就不能怪我了
    is_login = request.session.get('is_login')
    if not is_login:
        return HttpResponse("用户未登录")

    session_key = request.session.session_key

    obj = render(request, 'index.html')
    obj.headers['cacao'] = 111
    a = HttpResponse("index页面。。。")
    a.headers['papa'] = 222
    return a