异步发送短信验证与 注册接口完善

1.celery配置与基本使用

1.1 安装celery

pip install celery==5.0.0

1.2 新建celery/main.py配置celery

# celery_task/main.py
import os
from celery import Celery

# 定义celery实例, 需要的参数, 1, 实例名, 2, 任务发布位置, 3, 结果保存位置
app = Celery('mycelery',
             broker='redis://127.0.0.1:6379/14',  # 任务存放的地方 
             backend='redis://127.0.0.1:6379/15')  # 结果存放的地方


@app.task
def add(x, y):
    return x + y

2.测试celery

2.1 启动celery

'''1.启动celery'''
#1.1 单进程启动celery
celery -A main worker -l INFO
#1.2 celery管理
celery  multi start celery_test -A celery_test -l debug --autoscale=50,5        # celery并发数：最多50个，最少5个
ps auxww|grep "celery worker"|grep -v grep|awk '{print $2}'|xargs kill -9       # 关闭所有celery进程

3.使用celery异步发送短信

3.1 在celery_task/mian.py中添加发送短信函数

# celery_task/main.py
import os
import sys
import time
from celery import Celery

# 定义celery实例, 需要的参数, 1, 实例名, 2, 任务发布位置, 3, 结果保存位置

app = Celery('mycelery',
             broker='redis://127.0.0.1:6379/14',  # 任务存放的地方
             backend='redis://127.0.0.1:6379/15')  # 结果存放的地方


@app.task
def add(x, y):
    return x + y


"""
'''1.启动celery'''
#1.1 单进程启动celery
celery -A main worker -l INFO
#1.2 celery管理
celery  multi start celery_test -A celery_test -l debug --autoscale=50,5        # celery并发数：最多50个，最少5个
ps auxww|grep "celery worker"|grep -v grep|awk '{print $2}'|xargs kill -9       # 关闭所有celery进程
"""

# celery项目中的所有导包地址, 都是以CELERY_BASE_DIR为基准设定.
# 执行celery命令时, 也需要进入CELERY_BASE_DIR目录执行.
CELERY_BASE_DIR = os.path.dirname(os.path.abspath(__file__))
print(sys.path.insert(0, os.path.join(CELERY_BASE_DIR, '../syl')))

try:
    @app.task(bind=True)
    def send_sms_code(self, mobile, datas):
        sys.path.insert(0, os.path.join(CELERY_BASE_DIR, '../syl'))

        # 在方法中导包
        from libs.rl_sms import send_message

        time.sleep(5)
        try:
            # 用 res 接收发送结果, 成功是:０，　失败是：－１
            res = send_message(mobile, datas)
        except Exception as e:
            print(e)
            res = '-1'

        if res == '-1':
            # 如果发送结果是 -1  就重试.
            self.retry(countdown=5, max_retries=3, exc=Exception('短信发送失败'))
except Exception  as e:
    print(e)

3.2 在verifications/views.py中添加celery发送短信试图函数

import os
import random
import re
import sys
from django.shortcuts import render
# Create your views here.
from django.http import HttpResponse, HttpResponseForbidden
from django.views import View
from django_redis import get_redis_connection
from libs.captcha.captcha import captcha
from rest_framework.permissions import AllowAny
from rest_framework.views import APIView
from rest_framework.response import Response



#图片验证码接口
class ImageCodeView(View):
    def get(self, request):
        # 1.接收数据
        uuid = request.GET.get('uuid')
        # 2.校验数据
        if not uuid:
            return HttpResponseForbidden('uuid无效')
        # 3.处理业务
        # 获取图片文本内容和图片二进制代码
        text, image = captcha.generate_captcha()
        # 4.把uuid和图片文本存入redis
        redis_client = get_redis_connection('img_code')  # 获取redis客户端
        # 5.写入redis(是字符串)
        redis_client.setex(uuid, 60 * 5, text)
        # 6.返回响应图片
        return HttpResponse(image, content_type='image/jpg')


class SmsCodeView(APIView):
    """使用apiview的限流"""
    # 1. 所有人可以访问
    permission_classes = (AllowAny,)

    def post(self, request):
        # 1. 获取参数
        phone = request.data.get('phone')  # 手机号
        image_code = request.data.get('image_code')  # 图片验证码
        image_code_uuid = request.data.get('image_code_uuid')  # 前端生成的uuid
        print(phone, image_code)
        # 2. 检查参数
        if not all([phone, image_code, image_code_uuid]):
            return Response({"code": 999, "msg": "参数不全"})
        if not re.match(r'^1[3456789]\d{9}$', phone):
            return Response({"code": 999, "msg": "手机号码不正确"})

        # 3. 检查是否发送
        redis_client = get_redis_connection('img_code')
        phone_exists = redis_client.get(phone)
        if phone_exists:
            return Response({"code": 999, "msg": "频繁发送, 请稍后再试"})

        # 验证图形验证码
        redis_image_code = redis_client.get(image_code_uuid)  # bytes
        if redis_image_code:
            # bytes 转成 string
            redis_image_code = redis_image_code.decode()

        # 比较用户提供的图片内容是否和redis中保存的一致
        if image_code.upper() != redis_image_code:
            return Response({'code': 999, 'msg': '图片验证码不正确'})

        # 4. 发送
        code = '%06d' % random.randint(0, 999999)  # 随机6位验证码

        from syl.settings import BASE_DIR
        sys.path.insert(0, os.path.join(BASE_DIR, '../celery_task'))
        from main import send_sms_code  # 必须这么写, 从main中导包

        send_sms_code.delay(phone, (code, "5"))

        # send_message(phone, (code, "5"))
        print(code)

        # 5.使用 pipeline 批量操作
        pl = redis_client.pipeline()  # 实例化pipeline对象
        pl.setex(phone, 60 * 5, code)  # 存储phone:code, 5分钟有效期
        pl.delete(image_code_uuid)  # 从redis中删除这个图片验证码, 以防再次被使用
        pl.execute()

        # 6. 返回结果
        return Response({"code": 0, "msg": "短信发送成功"})

3.3 添加路由verifications/urls

from django.urls import path
from . import views

urlpatterns = [
    path('image_codes/', views.ImageCodeView.as_view()),
    path('sms_codes/', views.SmsCodeView.as_view()),

]

3.4.测试接口

http://192.168.56.100:8888/verify/sms_codes/

请求携带参数

{
    "phone": 18538752511,
    "image_code":"aed3",                                         # 前端生成的 图形验证码
    "image_code_uuid":"de8edce2-fc9f-11ea-9325-005056c00008"     # 前端生成的uuid
}

4.0 django添加检查用户名和手机号是否存在接口和注册

4.1在user/urls.py中添加

urlpatterns = [
    path('count/', views.RegCountView.as_view()),  # 查询用户名手机号使用量的视图,  /user/count/
    path('register/', views.RegisterView.as_view()),  # 注册视图, /user/register/

]

4.2 在user/views.py中添加检查视图函数

import datetime
import random

from django.http import HttpResponse
from django.views import View
from django_filters.rest_framework import DjangoFilterBackend
from rest_framework import viewsets
from rest_framework.authentication import BasicAuthentication, SessionAuthentication
from rest_framework.decorators import action
from rest_framework.filters import OrderingFilter
from rest_framework.permissions import AllowAny, IsAdminUser, IsAuthenticated, IsAuthenticatedOrReadOnly
from rest_framework.response import Response
from rest_framework.throttling import UserRateThrottle
from rest_framework.pagination import PageNumberPagination
from rest_framework.views import APIView
from rest_framework.permissions import BasePermission, SAFE_METHODS
from .models import User
from .serializers import UserSerializer, UserUnActiveSerializer, UserInfoSerializer
import redis

redis_client = redis.Redis(db=2)
# 查询用户数量接口
class RegCountView(APIView):
    # 注册时需要验证的用户名和手机号是否使用

    # 自定义权限类
    permission_classes = (AllowAny,)

    def post(self, request):
        # 接收参数:  验证的内容type: username/phone,  data: '用户名' 或者 '手机号',
        datatype = request.data.get('type')
        data = request.data.get('data')
        if not all([data, datatype]):
            return Response({'code': 999, 'msg': '参数不完整'})
        if datatype == 'username':
            count = User.objects.filter(username=data).count()
        if datatype == 'phone':
            count = User.objects.filter(phone=data).count()

        return Response({'code': 0, 'msg': '查询成功', 'data': {'type': datatype, 'count': count}})

4.2 在user/views.py中添注册查视图函数

# 注册接口
class RegisterView(APIView):
    """
    用户注册, 权限是: 匿名用户可访问
    """
    # 自定义权限类
    permission_classes = (AllowAny,)

    def post(self, request):
        """
        接收用户名,密码,手机号和验证码, 前端校验两遍一致性, 注册成功后返回成功, 然后用户自行登录获取token
        1. 用户名
        2. 密码
        3. 手机号
        4. 验证码
        :param request:
        :return:  {'code':0,'msg':'注册成功'}
        code: "260361"
        password: "123123"
        phone: "13303479527"
        username: "liangxuepeng"
        """
        username = request.data.get('username')
        phone = request.data.get('phone')
        code = request.data.get('code')
        passwrod = request.data.get('password')

        if all([username, passwrod, phone, code]):
            print(username, passwrod, phone, code)
        else:
            return Response({'code': 999, 'msg': '参数不全'})

        # rand_name = self.randomUsername()
        # 验证手机验证码
        # redis_client = get_redis_connection('verify_code')
        code_redis = redis_client.get(phone)
        if code_redis:
            code_redis = code_redis.decode()

        if not code == code_redis:
            return Response({'code': 999, 'msg': '手机验证码错误'})

        user = User(username=username, phone=phone)
        user.set_password(passwrod)
        user.save()

        return Response({'code': 0, 'msg': '注册成功'})

4.3测试检查接口

http://192.168.56.100:8888/user/count/