BBS项目day02、注册、登录(登录之随机验证码)、退出登录、密码加密加盐、首页(导航条、模态框,修改密码)

一、注册

1.注册之前端页面

html 复制代码
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>

    <!--动态引入文件-->
    {% load static %}
    <script src="{% static 'js/jquery.min.js' %}"></script>
    <link href="{% static 'bootstrap/css/bootstrap.min.css' %}" rel="stylesheet">
    <script src="{% static 'bootstrap/js/bootstrap.min.js' %}"></script>
    <script src="{% static 'layer/layer.js' %}"></script>
    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-image: url('https://pegasus.epweike.com/Public/uploads/introduce/55dc0c8c010df.jpg');
            background-size: cover;
            background-repeat: no-repeat;
            background-position: center;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .container {
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 10px;
            box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
            padding: 20px;
            text-align: center;
            width: 100%;
            max-width: 600px;
        }
        h1 {
            margin-top: 0;
        }
        .form-group {
            margin-bottom: 20px;
        }
        label {
            display: block;
            font-weight: bold;
        }
        .form-control {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 5px;
        }
        .btn {
            background-color: #007bff;
            color: #fff;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            width: 100%;
        }
        .btn:hover {
            background-color: #0056b3;
        }
    </style>
</head>
<body>

<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <h1 class="text-center">注册页面</h1>
            <div class="form-group">
                <label for="username">用户姓名</label>
                <input type="text" id="username" class="form-control" msg="用户名必须填写">
            </div>
            <div class="form-group">
                <label for="username">用户密码</label>
                <input type="password" id="password" class="form-control" msg="密码必须填写">
            </div>
            <div class="form-group">
                <label for="username">确认密码</label>
                <input type="password" id="re_password" class="form-control" msg="确认密码必须填写">
            </div>
            <div class="form-group">
                <label for="username">邮箱</label>
                <input type="text" id="email" class="form-control" msg="邮箱必须填写">
            </div>
            <div class="form-group">
                <label for="myfile">上传头像:
                    <img src="/static/img/default.png" id="myImg" width="100" alt="">
                </label>
                <input type="file" id="myfile" style="display: none" class="form-control">
            </div>
            <div class="form-group">
                <input type="button" value="提交" class="btn btn-primary btn-block">
            </div>
        </div>
    </div>
</div>

{# 绑定点击事件 #}
<script>
    // 在页面显示图片
    $("#myfile").change(function () {
        // 1.需要借助于文件阅读器(JavaScript的)
        let myFileReaderObj = new FileReader();
        // 2.获取文件数据,在此处可以将#myfile改为this
        {#var myFileDataObj = $("#myfile")[0].files[0];#}
        var myFileDataObj = $(this)[0].files[0];
        // 3.把获取到的文件数据提交给阅读器来获取图片
        myFileReaderObj.readAsDataURL(myFileDataObj);  // 这是异步提交
        // 4.把它读取的文件数据放到img的src中
        // 由于异步提交的缘故,代码会一直往下走,从而导致图片不能加载出来,
        // 故而为了防止此类事件的发生,用onload等待文件或图片加载完再接着往下执行
        myFileReaderObj.onload = function () {
            $("#myImg").attr('src', myFileReaderObj.result);
        }
    });


    $(".btn").click(function () {
        // 1.获取表单数据
        let username = $("#username").val();
        let password = $("#password").val();
        let re_password = $("#re_password").val();
        let email = $("#email").val();

        // 获取头像数据
        let myImg = $("#myfile")[0].files[0];
        console.log(myImg)

        // 2.参数验证
        //方式2:在input中写入 msg="用户名必须填写"等,然后循环取值
        var ids = ['username', 'password', 're_password', 'email'];
        $.each(ids, function (index, value) {
            if (!$('#' + value).val()) {
                layer.msg($("#" + value).attr('msg'));
                return;
            }
        });

        if (re_password !== password) {
            layer.msg('两次密码不一致');
            return;
        }

        // 由于是文件类型,所以data还要接收forData对象,接收了forData对象,
        // contentType参数和processData参数则要设置为false
        let formData = new FormData();
        formData.append('username', username);
        formData.append('password', password);
        formData.append('re_password', re_password);
        formData.append('email', email);
        formData.append('myfile', myImg);
        formData.append('csrfmiddlewaretoken', '{{ csrf_token }}');
        // 3.发起Ajax请求
        $.ajax({
            url: '',
            type: 'post',
            data: formData,
            contentType: false,
            processData: false,
            success: function (res) {
                if (res.code === 200) {
                    {#layer.msg(res.msg, {'icon': 1}, function () {#}
                    layer.msg(res.msg, {}, function () {
                        location.href = res.url;
                    });
                } else {
                    layer.msg(res.msg);
                }
            },
        });

        // 参数验证方式1:
        /*
        if (!username) {
            layer.msg('用户名必须填写');
            return;
        }
        if (!password) {
            layer.msg('密码必须填写');
            return;
        }
        if (!re_password) {
            layer.msg('确认必须填写');
            return;
        }
        if (!email) {
            layer.msg('邮箱必须填写');
            return;
        }*/

    });
</script>

</body>
</html>

2.注册之后台功能

python 复制代码
def register(request):
    # auth_user表扩展之后auth模块依然是可以使用的,在这使用最原生的
    # 判断是否为Ajax提交
    # print(request.is_ajax())
    if request.method == 'POST':
        # 1.定义返回前端的json数据格式
        back_dict = {'code': 200, 'msg': '注册成功', 'data': []}

        # 2.接收前端提交过来的参数
        username = request.POST.get('username')
        password = request.POST.get('password')
        re_password = request.POST.get('re_password')
        email = request.POST.get('email')
        myfile = request.FILES.get('myfile')

        # 3.验证参数:尽量是先验证不合法性,即反着过来验证,
        # 正向验证也可以,只是会嵌套很多的elif语句
        if not username:
            # 1xx 2xx 3xx 4xx 5xx等一般是响应状态码,而我们下面写的业务状态码(人为规定的)
            back_dict['code'] = 1001
            back_dict['msg'] = '用户名必填'
            return JsonResponse(back_dict)
        if not password:
            back_dict['code'] = 1003
            back_dict['msg'] = '密码必填'
            return JsonResponse(back_dict)
        if not re_password:
            back_dict['code'] = 1004
            back_dict['msg'] = '确认密码必填'
            return JsonResponse(back_dict)
        if password != re_password:
            back_dict['code'] = 1002
            back_dict['msg'] = '两次密码不一致'
            return JsonResponse(back_dict)
        if not email:
            back_dict['code'] = 1005
            back_dict['msg'] = '邮箱必填'
            return JsonResponse(back_dict)

        # if len(password) >= 6 and len(password) <=20:
        #     back_dict['code'] = 1000
        #     back_dict['msg'] = '密码必须是6-20位的'
        #     return JsonResponse(back_dict)

        # 4.开设处理正常的业务逻辑
        new_pwd = get_md5(password)

        data_dict = {}
        data_dict['username'] = username
        data_dict['password'] = new_pwd[: 16]
        data_dict['email'] = email

        if myfile:
            data_dict['avatar'] = myfile

        # models.UserInfo.objects.create(username=username, password=new_pwd, email=email, avatar=myfile)
        # 改为下述
        models.UserInfo.objects.create(**data_dict)

        # 5.返回前端数据
        back_dict['url'] = '/login/'
        return JsonResponse(back_dict)

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

3.密码加密加盐

python 复制代码
# auth模块自带的
from django.conf import settings

# 密码加盐
import hashlib


def get_md5(password):
    m = hashlib.md5()
    pwd = password + settings.SECRET_KEY
    m.update(pwd.encode('utf8'))
    return m.hexdigest()
    

二、登录

1.登录之前端页面

html 复制代码
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>注册页面</title>

    <!--动态引入文件-->
    {% load static %}
    <script src="{% static 'js/jquery.min.js' %}"></script>
    <link href="{% static 'bootstrap/css/bootstrap.min.css' %}" rel="stylesheet">
    <script src="{% static 'bootstrap/js/bootstrap.min.js' %}"></script>
    <script src="{% static 'layer/layer.js' %}"></script>

    {#            background: url('https://img0.baidu.com/it/u=741268616,1401664941&fm=253&app=138&size=w931&n=0&f=JPEG&fmt=auto?sec=1691859600&t=5c5bee3052ecec363c1ecc2eea9ac3f7') no-repeat; background-size: 100% 130%;#}

    <style>
        body {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            background-image: url('https://pegasus.epweike.com/Public/uploads/introduce/55dc0c8c010df.jpg');
            background-size: cover;
            background-repeat: no-repeat;
            background-position: center;
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .container {
            background-color: rgba(255, 255, 255, 0.9);
            border-radius: 10px;
            box-shadow: 0px 0px 10px rgba(0, 0, 0, 0.1);
            padding: 20px;
            text-align: center;
            width: 100%;
            max-width: 600px;
        }

        h1 {
            margin-top: 0;
        }

        .form-group {
            margin-bottom: 20px;
        }

        label {
            display: block;
            font-weight: bold;
        }

        .form-control {
            width: 100%;
            padding: 10px;
            border: 1px solid #ccc;
            border-radius: 5px;
        }

        .btn {
            background-color: #007bff;
            color: #fff;
            padding: 10px 20px;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            width: 100%;
        }

        .btn:hover {
            background-color: #0056b3;
        }

    </style>

</head>

<body>

<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <h1 class="text-center">登录页面</h1>
            <div class="form-group">
                <label for="username">用户姓名</label>
                <input type="text" id="username" class="form-control" msg="用户名必须填写">
            </div>
            <div class="form-group">
                <label for="username">用户密码</label>
                <input type="password" id="password" class="form-control" msg="密码必须填写">
            </div>
            <div class="form-group">
                <label for="username">验证码</label>
                <div class="row">
                    <div class="col-md-6">
                        <input type="text" id="code" class="form-control" msg="验证码必须填写">
                    </div>
                    <div class="col-md-6">
                        <img src="/get_code/" style=" width: 160px; height: 35px;" alt="">
                    </div>
                </div>

            </div>
            <div class="form-group">
                <input type="button" value="提交" class="btn btn-primary btn-block">
            </div>
        </div>
    </div>
</div>

<script>
    $(".btn").click(function () {
        // 1.获取表单数据
        let username = $("#username").val();
        let password = $("#password").val();
        let code = $("#code").val();

        // 2.参数验证
        //方式2:在input中写入 msg="用户名必须填写"等,然后循环取值
        var ids = ['username', 'password', 'code'];
        $.each(ids, function (index, value) {
            if (!$('#' + value).val()) {
                layer.msg($("#" + value).attr('msg'));
                return;
            }
        });

        if (code.length !== 5) {
            layer.msg('验证码输入不正确');
            return;
        }

        // 3.发起Ajax请求
        $.ajax({
            url: '',
            type: 'post',
            data: {username: username, password: password, code: code, csrfmiddlewaretoken: '{{ csrf_token }}'},
            success: function (res) {
                if (res.code === 200) {
                    {#layer.msg(res.msg, {'icon': 1}, function () {#}
                    layer.msg(res.msg, {}, function () {
                        location.href = res.url;
                    });
                } else {
                    layer.msg(res.msg, {});
                }
            },
        });
    });
</script>

</body>
</html>

2.登录之后端

python 复制代码
def login(request):
    '''
    验证码:一般是图片验证码,
    短信验证码(平台)
    滑动验证码(平台)
    验证码的作用:人机识别,防止爬虫------->一般都需要登录之后才能访问
    :param request:
    :return:
    '''
    if request.method == 'POST':

        # 1.返回json的数据格式
        back_dict = {'code': 200, 'msg': '登录成功,3s之后自动跳转', 'data': []}

        username = request.POST.get('username')
        password = request.POST.get('password')
        code = request.POST.get('code')

        # 2.验证参数
        if not username:
            back_dict['code'] = 1006
            back_dict['msg'] = '用户名必填'
            return JsonResponse(back_dict)
        if not password:
            back_dict['code'] = 1007
            back_dict['msg'] = '密码必填'
            return JsonResponse(back_dict)
        # 由于验证码可能有大小写组成,所以,需要全部设置为大写或者小写
        if code.upper() != request.session.get('code').upper():
            back_dict['code'] = 1008
            back_dict['msg'] = '验证码必填'
            return JsonResponse(back_dict)

        # 4.业务逻辑处理
        new_pwd = get_md5(password)
        user_obj = models.UserInfo.objects.filter(username=username, password=new_pwd[: 16]).first()
        if not user_obj:
            back_dict['code'] = 1009
            back_dict['msg'] = '用户名或者密码错误'
            return JsonResponse(back_dict)
        # 安全相关:密码加密,sql注入,xss攻击,csrf,撞库等

        # 登录成功,保存用户状态
        request.session['username'] = user_obj.username
        request.session['id'] = user_obj.pk

        back_dict['url'] = '/home/'
        return JsonResponse(back_dict)

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

2.登录之随机验证码

python 复制代码
"""
图片相关的模块
    pip3 install pillow
"""
from PIL import Image, ImageDraw, ImageFont

"""
Image:生成图片
ImageDraw:能够在图片上乱涂乱画
ImageFont:控制字体样式
"""
from io import BytesIO, StringIO

"""
内存管理器模块
BytesIO:临时帮你存储数据 返回的时候数据是二进制
StringIO:临时帮你存储数据 返回的时候数据是字符串
"""
import random


def get_random():
    return random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)


def get_code(request):
    # 最终步骤4:写图片验证码
    img_obj = Image.new('RGB', (430, 35), get_random())
    img_draw = ImageDraw.Draw(img_obj)  # 产生一个画笔对象
    # 字体地址下载 https://www.zhaozi.cn/s/all/freebusiness/
    img_font = ImageFont.truetype('static/font/yun.ttf', 30)  # 字体样式 大小

    # 随机验证码  五位数的随机验证码  数字 小写字母 大写字母
    code = ''
    for i in range(5):
        random_upper = chr(random.randint(65, 90))
        random_lower = chr(random.randint(97, 122))
        random_int = str(random.randint(0, 9))
        # 从上面三个里面随机选择一个
        tmp = random.choice([random_lower, random_upper, random_int])
        # 将产生的随机字符串写入到图片上
        """
        为什么一个个写而不是生成好了之后再写
        因为一个个写能够控制每个字体的间隙 而生成好之后再写的话
        间隙就没法控制了
        """
        img_draw.text((i * 60 + 60, -2), tmp, get_random(), img_font)
        # 拼接随机字符串
        code += tmp
    print(code)
    # 随机验证码在登陆的视图函数里面需要用到 要比对 所以要找地方存起来并且其他视图函数也能拿到
    request.session['code'] = code
    io_obj = BytesIO()
    img_obj.save(io_obj, 'png')
    return HttpResponse(io_obj.getvalue())

三、首页

1.首页之前端(导航条和模态框)

html 复制代码
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    {% load static %}
    <script src="{% static 'js/jquery.min.js' %}"></script>
    <link href="{% static 'bootstrap/css/bootstrap.min.css' %}" rel="stylesheet">
    <script src="{% static 'bootstrap/js/bootstrap.min.js' %}"></script>
    <script src="{% static 'layer/layer.js' %}"></script>

</head>
<body>

<nav class="navbar navbar-inverse">
    <div class="container-fluid">
        <!-- Brand and toggle get grouped for better mobile display -->
        <div class="navbar-header">
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                    data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
            <a class="navbar-brand" href="#">全球最大的博客网站</a>
        </div>

        <!-- Collect the nav links, forms, and other content for toggling -->
        <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
                <li class="active"><a href="#">文章 <span class="sr-only">(current)</span></a></li>
                <li><a href="#">分类</a></li>
                <li class="dropdown">
                    <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                       aria-expanded="false">点我看更多美女哦 <span class="caret"></span></a>
                    <ul class="dropdown-menu">
                        <li><a href="#">Action</a></li>
                        <li><a href="#">Another action</a></li>
                        <li><a href="#">Something else here</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">Separated link</a></li>
                        <li role="separator" class="divider"></li>
                        <li><a href="#">One more separated link</a></li>
                    </ul>
                </li>
            </ul>
            <form class="navbar-form navbar-left">
                <div class="form-group">
                    <input type="text" class="form-control" placeholder="Search">
                </div>
                <button type="submit" class="btn btn-default">搜索</button>
            </form>
            <!-- 模态框 -->
            <ul class="nav navbar-nav navbar-right">
                {% if request.session.username %}
                    <li><a href="#">{{ request.session.username }}</a></li>
                    <li class="dropdown">
                        <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true"
                           aria-expanded="false">更多操作 <span class="caret"></span></a>
                        <ul class="dropdown-menu">
                            <li><a href="#" data-toggle="modal" data-target=".bs-example-modal-lg">修改密码</a></li>
                            <li><a href="#">更改头像</a></li>
                            <li><a href="/logout/">退出登录</a></li>
                            <li><a href="#">后台管理</a></li>
                        </ul>
                    </li>
                {% else %}
                    <li><a href="/login/">登录</a></li>
                    <li><a href="/register/">注册</a></li>
                {% endif %}
            </ul>
            <div class="modal fade bs-example-modal-lg" tabindex="-1" role="dialog" aria-labelledby="myLargeModalLabel">
                <div class="modal-dialog modal-lg" role="document">
                    <div class="modal-content">
                        <div class="row">
                            <h1 class="text-center">修改密码</h1>
                            <div class="col-md-8 col-md-offset-2">
                                <div class="form-group">
                                    用户名:<input type="text" readonly value="{{ request.session.username }}" class="form-control">
                                </div>
                                <div class="form-group">
                                    原密码:<input type="password" id="old_password" class="form-control" msg="原密码必须输入">
                                </div>
                                <div class="form-group">
                                    新密码:<input type="password" id="new_password" class="form-control" msg="原密码必须输入">
                                </div>
                                <div class="form-group">
                                    确认密码:<input type="password" id="re_password" class="form-control" msg="原密码必须输入">
                                </div>
                                <div class="form-group">
                                    <input type="button" value="修改密码" class="btn btn-primary btn-block">
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </div><!-- /.navbar-collapse -->
    </div><!-- /.container-fluid -->
</nav>

<script>
    $(".btn").click(function () {
        // 1.获取参数
        let old_password = $("#old_password").val();
        let new_password = $("#new_password").val();
        let re_password = $("#re_password").val();

        // 2.参数验证
        let ids = ['old_password', 'new_password', 're_password'];
        $.each(ids, function (index, value) {
            if (!$('#' + value).val()) {
                layer.msg($('#' + value).attr('msg'));
                return;
            }
        });

        // 3.发起Ajax请求
        $.ajax({
            url: '/set_password/',
            type: 'post',
            data: {old_password:old_password, new_password:new_password, re_password:re_password, csrfmiddlewaretoken:'{{ csrf_token }}'},
            success: function (res) {
                if (res.code == 200) {
                    layer.msg(res.msg, {}, function () {
                        location.reload();
                    });
                } else {
                    layer.msg(res.msg, {});
                }
            }
        });

    });
</script>

</body>
</html>

2.首页之后端(修改密码)

python 复制代码
def set_password(request):
    if request.method == 'POST':
        # 1.先设定给前端返回的json格式的数据
        back_dict = {'code': 200, 'msg': '修改密码成功,3s后自动跳转', 'data': []}

        # 2.接收前端提交过来的参数
        old_password = request.POST.get('old_password')
        new_password = request.POST.get('new_password')
        re_password = request.POST.get('re_password')

        # 3.验证参数
        if new_password != re_password:
            back_dict['code'] = 1200
            back_dict['msg'] = '两次密码输入不一致'
            return JsonResponse(back_dict)
        # 验证老密码是否正确
        old_pwd = get_md5(old_password)
        user_obj = models.UserInfo.objects.filter(username=request.session.get('username'), password=old_pwd[: 16]).first()
        if not user_obj:
            back_dict['code'] = 1201
            back_dict['msg'] = '原密码不正确'
            return JsonResponse(back_dict)

        # 4.修改新密码
        new_pwd = get_md5(new_password)
        print(new_pwd)
        models.UserInfo.objects.filter(pk=request.session.get('id')).update(password=new_pwd[: 16])
        return JsonResponse(back_dict)
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