• django的form用户注册验证


    <!DOCTYPE html>
    <html lang="en">
    <head>
        <meta charset="UTF-8">
        <title>Title</title>
        <link rel="stylesheet" href="/static/plugins/bootstrap-3.3.7/css/bootstrap.min.css">
        <link rel="stylesheet" href="/static/css/edmure.css">
        <link rel="stylesheet" href="/static/css/account.css">
        <link rel="stylesheet" href="/static/css/commons.css">
    </head>
    <body>
    <div class="register">
        <div style="font-size: 25px; font-weight: bold; text-align: center">
            用户注册
        </div>
        <form id="fm" method="post" action="/register.html" novalidate>
            <div class="form-group">
                <label for="username">用户名:</label><span class="pull-right error text-danger">{{ errors.username.0 }}</span>
                {{ form.username }}
            </div>
            <div class="form-group">
                <label for="email">邮箱:</label><span class="pull-right error text-danger">{{ errors.email.0 }}</span>
                {{ form.email }}
            </div>
    
            <div class="form-group">
                <label for="password">密码:</label><span class="pull-right error text-danger">{{ errors.password.0 }}</span>
                {{ form.password }}
            </div>
            <div class="form-group">
                <label for="confirm">确认密码:</label><span class="pull-right error text-danger">{{ form.non_field_errors }}</span>
                {{ form.confirm }}
            </div>
    
            <div class="form-group">
                <label for="check_code">验证码:</label><span class="pull-right error text-danger">{{ result.message }}</span>
                <div class="row">
                    <div class="col-xs-7">
                        <input type="text" class="form-control" name="check_code" id="check_code" placeholder="请输入验证码">
                    </div>
                    <div class="col-xs-5">
                        <img id="check_code_img" src="/check_code.html" onclick="changeImg(this);">
                    </div>
                </div>
            </div>
    
            <div class="error btns login-form-tips" id="jsLoginTips">
                {% for key,error in errors.items %}
                    {{ error }}
                {% endfor %}
    
            </div>
    
            <div class="row">
                <div class="col-xs-3">
                    <input type="submit" id="register" class="btn btn-default" value="注 册" />
                </div>
                <div class="col-xs-9" style="padding-left: 0;">
                    <div class="alert alert-danger hide">
                        <span style="padding: 0 5px 0 5px;display: inline-block;font-size: 14px">
                            <i class="fa fa-minus-circle" aria-hidden="true"></i>
                        </span>
                        <span id="error_msg" style="font-size: 12px;"></span>
                    </div>
                </div>
            </div>
        </form>
    </div>
    <script src="/static/plugins/jquery-3.4.1.min.js"></script>
    <script src="/static/plugins/bootstrap-3.3.7/js/bootstrap.min.js"></script>
    
    <script>
        function changeImg(ths) {        
            ths.src += "?";       
        }
    
    </script>
    
    </body>
    </html>

    验证码模块  check_code.py

    #!/usr/bin/env python
    # -*- coding:utf-8 -*-
    
    import random
    from PIL import Image, ImageDraw, ImageFont, ImageFilter
    
    _letter_cases = "abcdefghjkmnpqrstuvwxy"  # 小写字母,去除可能干扰的i,l,o,z
    _upper_cases = _letter_cases.upper()  # 大写字母
    _numbers = ''.join(map(str, range(3, 10)))  # 数字
    init_chars = ''.join((_letter_cases, _upper_cases, _numbers))
    
    
    def create_validate_code(size=(120, 30),
                             chars=init_chars,
                             img_type="GIF",
                             mode="RGB",
                             bg_color=(255, 255, 255),
                             fg_color=(0, 0, 255),
                             font_size=18,
                             font_type="Monaco.ttf",
                             length=4,
                             draw_lines=True,
                             n_line=(1, 2),
                             draw_points=True,
                             point_chance=2):
        """
        @todo: 生成验证码图片
        @param size: 图片的大小,格式(宽,高),默认为(120, 30)
        @param chars: 允许的字符集合,格式字符串
        @param img_type: 图片保存的格式,默认为GIF,可选的为GIF,JPEG,TIFF,PNG
        @param mode: 图片模式,默认为RGB
        @param bg_color: 背景颜色,默认为白色
        @param fg_color: 前景色,验证码字符颜色,默认为蓝色#0000FF
        @param font_size: 验证码字体大小
        @param font_type: 验证码字体,默认为 ae_AlArabiya.ttf
        @param length: 验证码字符个数
        @param draw_lines: 是否划干扰线
        @param n_lines: 干扰线的条数范围,格式元组,默认为(1, 2),只有draw_lines为True时有效
        @param draw_points: 是否画干扰点
        @param point_chance: 干扰点出现的概率,大小范围[0, 100]
        @return: [0]: PIL Image实例
        @return: [1]: 验证码图片中的字符串
        """
    
        width, height = size  # 宽高
        # 创建图形
        img = Image.new(mode, size, bg_color)
        draw = ImageDraw.Draw(img)  # 创建画笔
    
        def get_chars():
            """生成给定长度的字符串,返回列表格式"""
            return random.sample(chars, length)
    
        def create_lines():
            """绘制干扰线"""
            line_num = random.randint(*n_line)  # 干扰线条数
    
            for i in range(line_num):
                # 起始点
                begin = (random.randint(0, size[0]), random.randint(0, size[1]))
                # 结束点
                end = (random.randint(0, size[0]), random.randint(0, size[1]))
                draw.line([begin, end], fill=(0, 0, 0))
    
        def create_points():
            """绘制干扰点"""
            chance = min(100, max(0, int(point_chance)))  # 大小限制在[0, 100]
    
            for w in range(width):
                for h in range(height):
                    tmp = random.randint(0, 100)
                    if tmp > 100 - chance:
                        draw.point((w, h), fill=(0, 0, 0))
    
        def create_strs():
            """绘制验证码字符"""
            c_chars = get_chars()
            strs = ' %s ' % ' '.join(c_chars)  # 每个字符前后以空格隔开
    
            font = ImageFont.truetype(font_type, font_size)
            font_width, font_height = font.getsize(strs)
    
            draw.text(((width - font_width) / 3, (height - font_height) / 3),
                      strs, font=font, fill=fg_color)
    
            return ''.join(c_chars)
    
        if draw_lines:
            create_lines()
        if draw_points:
            create_points()
        strs = create_strs()
    
        # 图形扭曲参数
        params = [1 - float(random.randint(1, 2)) / 100,
                  0,
                  0,
                  0,
                  1 - float(random.randint(1, 10)) / 100,
                  float(random.randint(1, 2)) / 500,
                  0.001,
                  float(random.randint(1, 2)) / 500
                  ]
        img = img.transform(size, Image.PERSPECTIVE, params)  # 创建扭曲
    
        img = img.filter(ImageFilter.EDGE_ENHANCE_MORE)  # 滤镜,边界加强(阈值更大)
    
        return img, strs

    views.py

    from django.shortcuts import render, redirect, HttpResponse
    from io import BytesIO
    from check_code import create_validate_code
    from registerForm import  RegisterForm
    from app01 import models
    from django.http import JsonResponse
    
    
    def check_code(request):
        """
        验证码
        :param request:
        :return:
        """
        stream = BytesIO()
        img, code = create_validate_code()
        img.save(stream, 'PNG')
        request.session['check_code'] = code
        return HttpResponse(stream.getvalue())
    
    
    def register(request):
        if request.method == "POST":
            form = RegisterForm(request.POST)
    
            input_code = request.POST.get('check_code')
            check_cd = request.session['check_code']
            if input_code.upper() == check_cd.upper():
                if form.is_valid():
                    print('a', form.cleaned_data)
                    username = form.cleaned_data.get('username')
                    email = form.cleaned_data.get('email')
                    password = form.cleaned_data.get('password')
                    models.UserInfo.objects.create(username=username, email=email, password=password)
                    return redirect('/')
                else:
                    errors = form.errors
                    print('b', form.errors)
                    return render(request, 'register.html', {'errors': errors, 'form': form})
            else:
                print(form.errors)
                result = {}
                if not input_code:
                    result['message'] = '验证码不能为空'
                else:
                    result['message'] = '验证码输入错误'
                return render(request, 'register.html', {'form': form, 'result': result})
        form = RegisterForm()
        return render(request, 'register.html', {'form': form})
    registerForm.py
    from django import forms 
    from django.core.exceptions import ValidationError
    from app01 import models
    
    
    
    class RegisterForm(forms.Form):
        username = forms.CharField(
            min_length=3,
            max_length=20,
            error_messages={
                'required': '用户名不能为空',
                'min_length': '用户名不能小于6位',
                'max_length': '用户名不能超过20个字'
            },
            widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': '请输入用户名', 'id':'username'}),
        )
        password = forms.RegexField(
            '^(?=.*[0-9])(?=.*[a-zA-Z])[0-9a-zA-Z~!@#$%^&*.,]{8,18}$',
            min_length=8,
            max_length=18,
            error_messages={
                'required': '密码不能为空',
                'invalid': '密码为8-18位,必须包含数字和字母,可以包含~!@#$%^&*.,字符',
                'min_length': '密码不能小于8位',
                'max_length': '密码不能多于18位',
            },
            widget=forms.PasswordInput(attrs={'class': 'form-control', 'placeholder': '请输入密码', 'id':'password'}),
        )
        confirm = forms.RegexField(
            '^(?=.*[0-9])(?=.*[a-zA-Z])[0-9a-zA-Z~!@#$%^&*.,]{8,18}$',
            min_length=8,
            max_length=18,
            error_messages={
                'required': '密码不能为空',
                'invalid': '密码为8-18位,必须包含数字和字母,可以包含~!@#$%^&*.,字符',
                'min_length': '密码不能小于8位',
                'max_length': '密码不能多于18位',
            },
            widget = forms.PasswordInput(attrs={'class': 'form-control', 'placeholder': '请确认密码', 'id':'confirm'}),
        )
        email = forms.EmailField(
           error_messages={
               'required': '邮箱不能为空',
               'invalid': '邮箱格式错误',
           },
           widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': '请输入邮箱', 'id':'email'}),
        )
    
        def clean_username(self):
            username = self.cleaned_data.get('username')
            if models.UserInfo.objects.filter(username=username).count():
                raise ValidationError('用户名已存在')
            return username
    
        def clean_email(self):
            email = self.cleaned_data.get('email')
            if models.UserInfo.objects.filter(email=email).count():
                raise ValidationError('邮箱已经被注册')
            return email
    
        def clean(self):
            if self.cleaned_data.get('password') != self.cleaned_data.get('confirm'):
                raise ValidationError('两次密码输入不一致')
            return self.cleaned_data
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  • 原文地址:https://www.cnblogs.com/zzl2019/p/11923956.html
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