注册 登陆 验证码
思路：
注册模块：
- 邮箱格式
- 邮箱是否存在
- 邮箱规定时间内注册次数
- 邮箱验证码验证
登陆：
- 登陆验证码验证
- 用户名与密码验证
- 邮箱与密码验证
注销：
- 清除session
from django.shortcuts import render,HttpResponse,redirect import io import json import datetime from chouti_test import models from statics import check_code as CheckCode from statics import commons from django import forms class StatusCodeEnum: Failed = 1000 AuthFailed = 1001 ArgsError = 1002 Success = 2000 FavorPlus = 2301 FavorMinus = 2302 class BaseResponse: def __init__(self): self.status = False self.code = StatusCodeEnum.Success self.data = None self.summary = None self.message = {} class SendMsgForm(forms.Form): email = forms.EmailField() class RegisterForm(forms.Form): username = forms.CharField() email = forms.EmailField() password = forms.CharField() email_code = forms.CharField() class LoginForm(forms.Form): user = forms.CharField() pwd = forms.CharField() code = forms.CharField()# 生成图片验证码 def check_code(request): stream = io.BytesIO() # 系统内一块内存 # 创建随机字符 code # 创建一张图片格式的字符串，将随机字符串写到图片上 img, code = CheckCode.create_validate_code() # 获取一张图片 一个验证码 img.save(stream, "PNG") # 在stream内存中保存img为PNG的图片 # 将字符串形式的验证码放在Session中 request.session["CheckCode"] = code # 验证码保存到session return HttpResponse(stream.getvalue()) # 保存的stream中的图片发送到前端 # -----------------------三个判断 1.格式是否合法 2.邮箱是否存在 3.1hours内是否，超过10次注册------------------------ def send_msg(request): rep = BaseResponse() form = SendMsgForm(request.POST) """ ----------------------- 判断邮箱格式 --------------------------""" if form.is_valid(): _value_dict = form.clean() # 获取正确的信息 email = _value_dict['email'] # 获取用户填的email has_exists_email = models.UserInfo.objects.filter(email=email).count() # 对比email是否已经存在 # ----------------------------------判断邮箱是否已经存在------------------------------------ if has_exists_email: # 为真表示已被注册 rep.summary = "此邮箱已经被注册" return HttpResponse(json.dumps(rep.__dict__)) # summary信息返回到前端 current_date = datetime.datetime.now() code = commons.random_code() count = models.SendMsg.objects.filter(email=email).count() if not count: # 信息不存在，正常注册用户 models.SendMsg.objects.create(code=code, email=email, ctime=current_date) rep.status = True else: # 信息不存在2次判断。判断是否在一个小时内注册超过10次 limit_day = current_date - datetime.timedelta(hours=1) # 判断是否存在，输入的email，大于limit_day的时间（时间越大越靠近current_time，说明在1hours内），times大于9次 times = models.SendMsg.objects.filter(email=email, ctime__gt=limit_day, times__gt=9).count() # --------------------------------判断一个小时内的验证码发送的次数------------------------------- if times: rep.summary = "'已超最大次数（1小时后重试）'" else: # 1.时间小于limit_day 2.时间大于limit_day，times小于10次的 # 时间小于limit_day unfreeze = models.SendMsg.objects.filter(email=email, ctime__lt=limit_day).count() if unfreeze: models.SendMsg.objects.filter(email=email).update(times=0) from django.db.models import F models.SendMsg.objects.filter(email=email).update(code=code, ctime=current_date, times=F('times') + 1) rep.status = True # -------------------------------------邮箱格式不正确---------------------------------------- else: # error_dict = json.loads(form.errors.as_json()) # rep.summary = error_dict['email'][0]['message'] rep.summary = form.errors['email'][0] return HttpResponse(json.dumps(rep.__dict__)) # 对于form的输入格式验证，验证码时间验证 def register(request): """ 注册 :param request: :return: """ rep = BaseResponse() form = RegisterForm(request.POST) if form.is_valid(): current_date = datetime.datetime.now() limit_day = current_date - datetime.timedelta(minutes=1) _value_dict = form.clean() is_valid_code = models.SendMsg.objects.filter(email=_value_dict['email'], code=_value_dict['email_code'], ctime__gt=limit_day).count() # 判断输入框 if not is_valid_code: rep.message['email_code'] = '邮箱验证码不正确或过期' return HttpResponse(json.dumps(rep.__dict__)) has_exists_email = models.UserInfo.objects.filter(email=_value_dict['email']).count() if has_exists_email: rep.message['email'] = '邮箱已经存在' return HttpResponse(json.dumps(rep.__dict__)) has_exists_username = models.UserInfo.objects.filter(username=_value_dict['username']).count() if has_exists_username: rep.message['email'] = '用户名已经存在' return HttpResponse(json.dumps(rep.__dict__)) _value_dict['ctime'] = current_date _value_dict.pop('email_code') # 当前用户的所有信息 obj = models.UserInfo.objects.create(**_value_dict) user_info_dict = {'nid': obj.nid, 'email': obj.email, 'username': obj.username} models.SendMsg.objects.filter(email=_value_dict['email']).delete() request.session['is_login'] = True request.session['user_info'] = user_info_dict rep.status = True else: error_msg = form.errors.as_json() rep.message = json.loads(error_msg) return HttpResponse(json.dumps(rep.__dict__)) # ----------------------------------------登陆------------------------------------- def login(request): """ 用户登陆 :param request: :return: """ rep = BaseResponse() form = LoginForm(request.POST) # 登陆验证码判断 if form.is_valid(): _value_dict = form.clean() if _value_dict['code'].lower() != request.session["CheckCode"].lower(): rep.message = {'code': [{'message': '验证码错误'}]} return HttpResponse(json.dumps(rep.__dict__)) # 验证码正确 from django.db.models import Q con = Q() q1 = Q() q1.connector = 'AND' q1.children.append(('email', _value_dict['user'])) q1.children.append(('password', _value_dict['pwd'])) q2 = Q() q2.connector = 'AND' q2.children.append(('username', _value_dict['user'])) q2.children.append(('password', _value_dict['pwd'])) con.add(q1, 'OR') con.add(q2, 'OR') obj = models.UserInfo.objects.filter(con).first() if not obj: rep.message = {'user': [{'message': '用户名邮箱或密码错误'}]} return HttpResponse(json.dumps(rep.__dict__)) request.session['is_login'] = True request.session['user_info'] = {'nid': obj.nid, 'email': obj.email, 'username': obj.username} rep.status = True else: error_msg = form.errors.as_json() rep.message = json.loads(error_msg) return HttpResponse(json.dumps(rep.__dict__)) # --------------------------------------------注销-------------------------------------------- def logout(request): """ 用户注销 :param request: :return: """ request.session.clear() return redirect('/index/')
---------------------------------------------models.py-------------------------------------
from django.db import models
class SendMsg(models.Model):
nid = models.AutoField(primary_key=True)
code = models.CharField(max_length=6)
email = models.CharField(max_length=32, db_index=True)
times = models.IntegerField(default=0)
ctime = models.DateTimeField()
class UserInfo(models.Model):
nid = models.AutoField(primary_key=True)
username = models.CharField(max_length=32, unique=True)
password = models.CharField(max_length=32)
email = models.CharField(max_length=32, unique=True)
ctime = models.DateTimeField()
一、安装依赖
CentOS
第一步：
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yum install python-devel |
第二步： yum install freetype-devel libjpeg-devel libpng-devel
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sudo yum install libtiff-devel libjpeg-devel libzip-devel freetype-devel \ lcms2-devel libwebp-devel tcl-devel tk-devel |
第三步：RPM包安装PIL
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下载安装：ftp://rpmfind.net/linux/atrpms/f20-x86_64/atrpms/stable/PIL-1.1.7-10.1.fc20.x86_64.rpm更多版本：http://rpmfind.net/linux/rpm2html/search.php?query=PIL&submit=Search+...&system=&arch= |
Windows
第一步：
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下载安装pipa. 下载地址：https://pypi.python.org/packages/source/p/pip/pip-7.1.2.tar.gz#md5=3823d2343d9f3aaab21cf9c917710196b. 解压，进入目录c. 安装，Python setup.py install注：安装过程中可能依赖setuptools，安装过程如下：下载文件：https://bootstrap.pypa.io/ez_setup.py执行文件：Python ez_setup.py |
第二步：
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pip install Pillow |
更多安装文档：http://pillow.readthedocs.org/en/latest/installation.html
二、下载源码执行
第一步：
源码下载：https://files.cnblogs.com/files/wupeiqi/CheckCode.zip
第二步：
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a. 解压b. 运行：Python manage.py runserver 127.0.0.1:8000 |
第三步：
浏览器访问：http://127.0.0.1:8000/login/
三、原理
1、当用户访问 http://127.0.0.1:8000/login/ 时，Python自动生成一张图片输入到页面（即：验证码），并且将图片上的文字内容保存在 Session中（即：request.session["CheckCode"] = '验证码的文字内容'）。
2、用户输入用户名密码，点击登陆时：
- 首先，检查用户输入的 验证码 是否和Session中保存的验证码相同
- 然后，检查用户输入的 用户名 和 密码是否正确
参考：https://www.cnblogs.com/wupeiqi/articles/4786251.html
