((Django)Http POST请求不断返回错误请求。我没有关于如何调试此功能的想法

问题描述 投票:0回答:1

我一直在尝试模拟使用“用户名”,“全名”或“电子邮件”之一的Instagram登录。

以下是我创建的“帐户” Django应用的文件:

account / urls.py

from django.urls    import path
from .views         import SignInView, SignUpView

urlpatterns = [
        path('signup', SignUpView.as_view()),
        path('signin', SignInView.as_view()),
]

account / models.py

from django.db import models

class Account(models.Model):
    email       = models.CharField(max_length=200)
    password    = models.CharField(max_length=700)
    fullname    = models.CharField(max_length=200)
    username    = models.CharField(max_length=200)
    created_at  = models.DateTimeField(auto_now_add=True)
    updated_at  = models.DateTimeField(auto_now=True)

    class Meta:
        db_table = 'accounts'

account / views.py

import json
import bcrypt
import jwt

from django.views       import View
from django.http        import HttpResponse, JsonResponse
from django.db.models   import Q

from .models    import Account

class SignUpView(View):
    def post(self, request):
        data = json.loads(request.body)
        try:
            if Account.objects.filter(email=data['email']).exists():
                return JsonResponse({"message": "ALREADY EXIST"}, status=409)

            hashed_pw = bcrypt.hashpw(data['password'].encode('utf-8'),bcrypt.gensalt()).decode()
            Account.objects.create(
                    email       = data['email'],
                    password    = hashed_pw,
                    fullname    = data['fullname'],
                    username    = data['username'],

            )
            return JsonResponse({"message": "SUCCESS"}, status=200)

        except KeyError:
            return JsonResponse({"message": "INVALID_KEYS"}, status=400)

class SignInView(View):
    def post(self, request):
        data = json.loads(request.body)

        try:
            if Account.objects.filter(Q(email=data['email']) | Q(username=data['username']) | Q(fullname=data['fullname'])).exists():
                account = Account.objects.get(Q(email=data['email']) | Q(username=data['username']) | Q(fullname=data['fullname']))

                encoded_pw = account.password.encode('utf-8')
                encoded_input = data['password'].encode('utf-8')
                if bcrypt.checkpw(encoded_input, encoded_pw):
                    token = jwt.encode({ 'email' : account.email }, 'secret', algorithm='HS256').decode('utf-8')
                    return JsonResponse({ 'access_token' : token }, status=200)
                return HttpResponse(status=403)

            return HttpResponse(status=402)

        except KeyError:
            return JsonResponse({"message": "INVALID_KEYS"}, status=400)

而且我一直在使用Httpie这样发送Post请求:

http -v http://127.0.0.1:8000/account/signin username='aaron' password='1234'

但是错误的请求会像这样继续出现:

Bad Request: /account/signin
[19/May/2020 22:20:33] "POST /account/signin HTTP/1.1" 400 27

我已经成功登录。我通过Httpie使用POST请求创建了一个帐户(用户名= aaron全名= Aaron密码= 1234电子邮件[email protected])。但是,我一直在努力找出登录功能出了什么问题。

除了过分地使用pdb和print()之外,我如何进行调试?当错误请求消息显示在终端上时,我什至不能使用pdb的p方法。

python django debugging post httpie
1个回答
0
投票

我想问题出在这一行:

if Account.objects.filter(Q(email=data['email']) | Q(username=data['username']) | Q(fullname=data['fullname'])).exists():

这是一个问题,因为除非email中存在usernamefullnamedata,否则它将始终抛出被您捕获的KeyError并返回400 = BadRequest

您应该在数据上使用get(key,default=None)方法。

然后,只有在键存在的情况下,才需要一些逻辑来组合Q对象。

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