django搭建BBS 登入&驗證碼的生成文件結構 app 介面 migrations _\_inint\_\_.py admin.py apps.py bbsform.py models.py tests.py views.py avatar BBS \_\_inint\_\_.py setti ...

django搭建BBS-登入&驗證碼的生成

基於註冊完成後

文件結構

app 介面
- migrations
- __inint__.py
- admin.py 管理員頁面註冊表單用
- apps.py
- bbsform.py form組件相關設置
- models.py 模型存放
- tests.py
- views.py 業務邏輯
avatar 圖片文件存儲
BBS 項目名稱以及路由存放
- __inint__.py
- settings.py
- urls.py
- wsgi.py
static
- bootstrap-3.3.7-dist bootstrap文件網上下載的
- jquery-3.4.1.min.js jq文件
templates 頁面文件存放

一.創建圖片驗證

1.路由

urls.py

from django.conf.urls import url
from django.contrib import admin
#主路由導入視圖內函數
from app import views
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^register/', views.register),
    url(r'^login/', views.login),
    url(r'^get_code/', views.get_code),
]

2.邏輯業務

views.py

from django.shortcuts import render,HttpResponse,redirect
from django.http import JsonResponse
#Image導入
#ImageDraw在圖片上寫字
#ImageFont 寫字的格式
from PIL import Image,ImageDraw,ImageFont
import random
# 相當於把文件以byte格式存到記憶體中
from io import BytesIO

from django.contrib import auth

from app.bbsforms import Register
from app import models

from django.db.models import Count
from django.db.models.functions import TruncMonth
from django.db.models import F





# Create your views here.
def register(request):
    if request.method=='GET':
        form=Register()
        return render(request,'register.html',{'form':form})
    elif request.is_ajax():
        response={'code':100,'msg':None}
        form = Register(request.POST)
        if form.is_valid():
            #校驗通過的數據
            clean_data=form.cleaned_data
            #把re_pwd剔除
            clean_data.pop('re_pwd')
            #取出頭像
            avatar=request.FILES.get('avatar')
            if avatar:
                #因為用的是FileField，只需要把文件對象賦值給avatar欄位，自動做保存
                clean_data['avatar']=avatar
            user=models.UserInfo.objects.create_user(**clean_data)
            if user:
                response['msg'] = '創建成功'
            else:
                response['code'] = 103
                # 把校驗不通過的數據返回
                response['msg'] = '創建失敗'
        else:
            response['code']=101
            #把校驗不通過的數據返回
            response['msg']=form.errors
            print(type(form.errors))
        return JsonResponse(response,safe=False)


def login(request):
    if request.method=='GET':
        return render(request,'login.html')


def get_code(request):
    if request.method == 'GET':
        img = Image.new('RGB', (350, 40), (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
        # 寫文字
        # 生成一個字體對象
        font = ImageFont.truetype('/static/Gabriola.ttf', 34)
        # 調用方法，返回一個畫板對象
        draw = ImageDraw.Draw(img)

        new_text =''
        # 生成隨機8位數字
        for x_index in range(1, 8):
            num = chr(random.randint(48, 57))
            word = chr(random.randint(65, 90))
            word_1 = chr(random.randint(97, 122))
            text =random.choice((num, word, word_1))
            draw.text((x_index * 32, 0),text, font=font)
            new_text +=text

        # 加點線
        width = 320
        height = 35
        for i in range(5):
            x1 = random.randint(0, width)
            x2 = random.randint(0, width)
            y1 = random.randint(0, height)
            y2 = random.randint(0, height)
            # 在圖片上畫線
            draw.line((x1, y1, x2, y2), fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))

        for i in range(33):
            # 畫點
            draw.point([random.randint(0, width), random.randint(0, height)], fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
            x = random.randint(0, width)
            y = random.randint(0, height)
            # 畫弧形
            draw.arc((x, y, x + 4, y + 4), 0, 90, fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
        print(new_text)
        #存在session中
        request.session['code']=new_text
        #存記憶體
        f = BytesIO()
        img.save(f, 'png')
        return HttpResponse(f.getvalue())

3.網頁

login.html

<!DOCTYPE html>
<html lang="en">
<head>
    {% include 'bootstrap.html' %}<--載入bootstrap-->
    <meta charset="UTF-8">
    <title>登入</title>
</head>
<body>
<div class="container-fluid center-block">
    <div class="row">
        <div class="col-md-6 col-md-offset-3">
            <h1>登陸</h1>
            <form action="">
                <div class="form-group">
                    <label for="id_name">用戶名</label>
                    <input type="text" name="name" id="id_name" class="form-control">
                </div>
                <div class="form-group">
                    <label for="pwd">密碼</label>
                    <input type="password" name="pwd" id="pwd" class="form-control">
                </div>
                <div class="form-group">
                    <label for="id_code">驗證碼</label>
                    <div class="row">
                        <div class="col-md-6">
                            <input type="text" name="code" id="id_code" class="form-control">
                        </div>
                        <div class="col-md-6" id="img">
                            <img src="/get_code/" height="40" width="350" class="img-code">
                        </div>
                    </div>
                </div>
                <input type="submit" value="提交" class="btn-success">
            </form>
        </div>
    </div>
</div>
</body>
{% include 'jq.html' %} <--載入jq-->
<script>  <--利用img標標簽屬性src發送改變後會自己去找-->
    $('.img-code').click(function () {
        var img_code_src = $(this).attr('src');
        img_code_src += '1';
        console.log(img_code_src);
        $(this).attr('src',img_code_src)
    })
</script>
</html>

二.賬號信息進行驗證

login.html

<!DOCTYPE html>
<html lang="en">
<head>
    {% include 'bootstrap.html' %}
    <meta charset="UTF-8">
    <title>登入</title>
</head>
<body>
<div class="container-fluid center-block">
    <div class="row">
        <div class="col-md-6 col-md-offset-3">
            {% csrf_token %}
            <h1>登陸</h1>
            <form action="">
                <div class="form-group">
                    <label for="id_name">用戶名</label>
                    <input type="text" name="name" id="id_name" class="form-control">
                </div>
                <div class="form-group">
                    <label for="pwd">密碼</label>
                    <input type="password" name="pwd" id="pwd" class="form-control">
                </div>
                <div class="form-group">
                    <label for="id_code">驗證碼</label>
                    <div class="row">
                        <div class="col-md-6">
                            <input type="text" name="code" id="id_code" class="form-control">
                        </div>
                        <div class="col-md-6" id="img">
                            <img src="/get_code/" height="40" width="350" class="img-code">
                        </div>
                    </div>
                </div>
                <input type="button" value="提交" class="btn-success" id="up_data">
                <span style="color: red" id="msg"></span>
            </form>
        </div>
    </div>
</div>
</body>
{% include 'jq.html' %}
<script>
    $('.img-code').click(function () {
        var img_code_src = $(this).attr('src');
        img_code_src += '1';
        console.log(img_code_src);
        $(this).attr('src',img_code_src)
    })
</script>


<script>
    $('#up_data').click(function () {
        $.ajax({
            type:'post',
            url:'/login/',
            data:{'name':$('#id_name').val(),
                'pwd':$('#pwd').val(),
                'code':$('#id_code').val(),
                'csrfmiddlewaretoken':'{{csrf_token}}'
            },
            success:function (msg) {
                console.log(msg);
                $('#msg').text(msg);
                if (msg =='登入成功'){
                    console.log('sb');
                    window.location.replace('http://www.baidu.com');<--暫時先放百度-->
                }
            }
        })
    })
</script>
</html>

views.py

from django.shortcuts import render,HttpResponse,redirect
from django.http import JsonResponse
#Image導入
#ImageDraw在圖片上寫字
#ImageFont 寫字的格式
from PIL import Image,ImageDraw,ImageFont
import random
# 相當於把文件以byte格式存到記憶體中
from io import BytesIO

from django.contrib import auth

from app.bbsforms import Register
from app import models

from django.db.models import Count
from django.db.models.functions import TruncMonth
from django.db.models import F





# Create your views here.
def register(request):
    if request.method=='GET':
        form=Register()
        return render(request,'register.html',{'form':form})
    elif request.is_ajax():
        response={'code':100,'msg':None}
        form = Register(request.POST)
        if form.is_valid():
            #校驗通過的數據
            clean_data=form.cleaned_data
            #把re_pwd剔除
            clean_data.pop('re_pwd')
            #取出頭像
            avatar=request.FILES.get('avatar')
            if avatar:
                #因為用的是FileField，只需要把文件對象賦值給avatar欄位，自動做保存
                clean_data['avatar']=avatar
            user=models.UserInfo.objects.create_user(**clean_data)
            if user:
                response['msg'] = '創建成功'
            else:
                response['code'] = 103
                # 把校驗不通過的數據返回
                response['msg'] = '創建失敗'
        else:
            response['code']=101
            #把校驗不通過的數據返回
            response['msg']=form.errors
            print(type(form.errors))
        return JsonResponse(response,safe=False)


def login(request):
    if request.method=='GET':
        return render(request,'login.html')
    else:
        print(request.POST)
        user_name=request.POST.get('name')
        pwd=request.POST.get('pwd')
        code=request.POST.get('code')

        user=auth.authenticate(username=user_name,password=pwd)
        print(user)
        if request.session.get('code').upper() !=code.upper(): #忽略大小寫
            return HttpResponse('驗證碼錯誤')
        elif not user:
            return HttpResponse('賬號密碼錯誤')
        else:
            return HttpResponse('登入成功')



def get_code(request):
    if request.method == 'GET':
        img = Image.new('RGB', (350, 40), (random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
        # 寫文字
        # 生成一個字體對象
        font = ImageFont.truetype('/static/Gabriola.ttf', 34)
        # 調用方法，返回一個畫板對象
        draw = ImageDraw.Draw(img)

        new_text =''
        # 生成隨機8位數字
        for x_index in range(1, 8):
            num = chr(random.randint(48, 57))
            word = chr(random.randint(65, 90))
            word_1 = chr(random.randint(97, 122))
            text =random.choice((num, word, word_1))
            draw.text((x_index * 32, 0),text, font=font)
            new_text +=text

        # 加點線
        width = 320
        height = 35
        for i in range(5):
            x1 = random.randint(0, width)
            x2 = random.randint(0, width)
            y1 = random.randint(0, height)
            y2 = random.randint(0, height)
            # 在圖片上畫線
            draw.line((x1, y1, x2, y2), fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))

        for i in range(33):
            # 畫點
            draw.point([random.randint(0, width), random.randint(0, height)], fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
            x = random.randint(0, width)
            y = random.randint(0, height)
            # 畫弧形
            draw.arc((x, y, x + 4, y + 4), 0, 90, fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
        print(new_text)
        #存在session中
        request.session['code']=new_text
        #存記憶體
        f = BytesIO()
        img.save(f, 'png')
        return HttpResponse(f.getvalue())