1、后台管理页面之文本编辑
# 后台管理url
re_path(r'^cn_backend/$', views.cn_backend, name='cn_backend'),
re_path(r'^cn_backend/add_article/$', views.add_article, name='add_articles'),
view视图
from django.shortcuts import render, HttpResponse, redirect
from blog import models
from django.contrib.auth.decorators import login_required # 用户登录证装饰器 @login_required
def cn_backend(request):
"""后台管理页面"""
article_list = models.Article.objects.filter(user=request.user) return render(request, "backend/backend.html", locals()) @login_required
def add_article(request): if request.method == "POST":
title = request.POST.get('title')
content = request.POST.get('content') models.Article.objects.create(title=title,content=content, user=request.user)
return redirect("/cn_backend/")
return render(request, "backend/add_article.html", locals())
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="/static/bootstrap3/css/bootstrap.css">
<style type="text/css">
.glyphicon-comment {
vertical-align: -1px;
}
</style>
</head>
<body>
<div class="site-header">
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">
后台管理
</a>
</div>
</div>
</nav>
</div>
<div class="site-body">
<div class="container-fluid">
<div class="row">
<div class="col-md-2 col-lg-offset-1">
<div class="panel panel-default">
<div class="panel-heading">操作</div>
<div class="panel-body">
<a href="/cn_backend/add_article/">添加文章</a>
</div>
</div> </div>
<div class="col-md-8">
<div>
<ul class="nav nav-tabs">
<li role="presentation" class="active"><a href="#">文章</a></li>
<li role="presentation"><a href="#">日记</a></li>
<li role="presentation"><a href="#">随笔</a></li>
<li role="presentation"><a href="#">相册</a></li>
</ul>
</div> <div class="tab-content">
<div class="article_list small">
<table class="table table-hover table-striped">
<thead>
<th>标题</th>
<th>评论数</th>
<th>点赞数</th>
<th>操作</th>
<th>操作</th>
</thead> <tbody>
{% for article in article_list %}
<tr>
<td>{{ article.title }}</td>
<td>{{ article.comment_count }}</td>
<td>{{ article.up_count }}</td>
<td><a href="">编辑</a></td>
<td><a href="">删除</a></td>
</tr>
{% endfor %}
</tbody> </table>
</div> </div> </div>
</div>
</div>
</div>
</body>
</html>
backend.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="/static/bootstrap3/css/bootstrap.css">
<style type="text/css">
.glyphicon-comment {
vertical-align: -1px;
}
</style>
</head>
<body>
<div class="site-header">
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="/cn_backend/">
后台管理
</a>
</div>
</div>
</nav>
</div>
<div class="site-body">
<div class="container-fluid">
<div class="row">
<div class="col-md-2 col-lg-offset-1">
<div class="panel panel-default">
<div class="panel-heading">操作</div>
<div class="panel-body">
<a href="/cn_backend/add_article/">添加文章</a>
</div>
</div> </div>
<div class="col-md-8">
<div>
<ul class="nav nav-tabs">
<li role="presentation" class="active"><a href="#">文章</a></li>
<li role="presentation"><a href="#">日记</a></li>
<li role="presentation"><a href="#">随笔</a></li>
<li role="presentation"><a href="#">相册</a></li>
</ul>
</div> <div>
<form action="" method="post">
{% csrf_token %}
<div class="add_article">
<div class="alert-danger text-center">添加文章</div>
<div class="add_article_region">
<div class="title form-group">
<label for="">标题</label>
<div>
<input type="text" name="title">
</div>
</div> <div class="content form-group">
<label for="">内容(Kindeditor编辑器，不支持拖放/粘贴上传图片) </label>
<div>
<textarea name="content" id="article_content" cols="30" rows="10"></textarea>
</div>
</div> <input type="submit" class="btn btn-default"> </div>
</div>
</form>
</div> </div>
</div>
</div>
</div>
</body>
</html>
add article.html
2、富文本编辑框KindEditor
1、编辑器的引入
官网 http://kindeditor.net/demo.php
在需要显示编辑器的位置添加textarea输入框。
<textarea id="editor_id" name="content" style="width:700px;height:300px;">
<strong>HTML内容</strong>
</textarea>
在该HTML页面添加以下脚本。
2、参数设置
<script>
KindEditor.ready(function (K) {
window.editor = K.create('#editor_id', {
width: "800",
height: "600",
items: ['source', '|', 'undo', 'redo', '|', 'preview', 'print', 'template', 'code', 'cut', 'copy', 'paste',
'plainpaste', 'wordpaste', '|', 'justifyleft', 'justifycenter', 'justifyright',
'justifyfull', 'insertorderedlist', 'insertunorderedlist', 'indent', 'outdent', 'subscript',
'superscript', 'clearhtml', 'quickformat', 'selectall', '|', 'fullscreen', '/',
'formatblock', 'fontname', 'fontsize'
],
resizeType:1
});
});
</script>
3、上传功能
1）如何上传
2）csrf
3）指定上传的文件名称
4) 文件存入服务端
5)图片预览功能
4、富文本框代码
url
# 富文本编辑框 图片上传
re_path(r'^upload/$', views.upload, name='upload'),
views视图
def upload(request):
"""上传文件"""
print(request.FILES) # 获取文件name
img = request.FILES.get("upload_img")
print(img.name) # 文件存取路径
import os
from cnblog import settings
img_path = os.path.join(settings.MEDIA_ROOT, "add_article_img", img.name) # 图片读取，写入到服务端
with open(img_path, "wb") as f:
for line in img:
f.write(line) # 文件预览功能
response = {
"error":0,
"url":"/media/add_article_img/%s" % img.name
}
import json
return HttpResponse(json.dumps(response))
模板层的富文本编辑框
<div class="content form-group">
<label for="">内容(Kindeditor编辑器，不支持拖放/粘贴上传图片) </label>
<div>
<textarea id="editor_id" name="content"
style="width:700px;height:300px;"></textarea>
</div>
</div>
JavaScript代码
<script charset="utf-8" src="/static/kindeditor/kindeditor-all-min.js"></script>
<script src="/static/js/jquery-3.2.1.min.js"></script>
<script>
KindEditor.ready(function (K) {
window.editor = K.create('#editor_id', {
width: "800",
height: "600", // 自定制
items: ['source', '|', 'undo', 'redo', '|', 'preview', 'print', 'template', 'code', 'cut', 'copy', 'paste',
'plainpaste', 'wordpaste', '|', 'justifyleft', 'justifycenter', 'justifyright',
'justifyfull', 'insertorderedlist', 'insertunorderedlist', 'indent', 'outdent', 'subscript',
'superscript', 'clearhtml', 'quickformat', 'selectall', '|', 'fullscreen', '/',
'formatblock', 'fontname', 'fontsize', '|', 'forecolor', 'hilitecolor', 'bold',
'italic', 'underline', 'strikethrough', 'lineheight', 'removeformat', '|', 'image', 'multiimage',
'flash', 'media', 'insertfile', 'table', 'hr', 'emoticons', 'baidumap', 'pagebreak',
'anchor', 'link', 'unlink', '|', 'about'
], // textarea可以拉伸
resizeType: 1, //文件上传的处理视图
uploadJson: "/upload/", //文件上传的参数
extraFileUploadParams: {
"csrfmiddlewaretoken": $("[name='csrfmiddlewaretoken']").val(),
}, // 文件上传的name
filePostName:"upload_img", });
});
</script>
3、文章摘要的保存
1、只去前150个字符，{{ article.desc|safe }}
2、未闭合的标签
4、bs的简单应用,xss攻击
1、BeautifulSoup
对于HTML/XML数据的筛选，BeautifulSoup也是比较常用且使用简单的技术，
BeautifulSoup是一种非常优雅的专门用于进行HTML/XML数据解析的一种描述语言，可以很好的分析和筛选HTML/XML这样的标记文档中的指定规则数据
在数据筛选过程中其基础技术是通过封装HTML DOM树实现的一种DOM操作，通过加载网页文档对象的形式，从文档对象树模型中获取目标数据
from bs4 import BeautifulSoup s = "<h1>hello</h1> <span>world</sapn> <script>alert(1111)</script>" soup = BeautifulSoup(s, "html.parser") # 按照html格式过滤 print(soup.text) # 过滤掉标签，只剩下text文本 print(soup.find_all()) # 按标签进行截断 for tag in soup.find_all():
print(tag.name) # 打印标签的name if tag.name == "script":
tag.decompose() # Recursively destroys the contents of this tree. print(str(soup))
2、bs4模块预防xss攻击
@login_required
def add_article(request): if request.method == "POST":
title = request.POST.get('title')
content = request.POST.get('content') # 过滤
from bs4 import BeautifulSoup
soup = BeautifulSoup(content, "html.parser")
for tag in soup.find_all():
if tag.name == "script":
tag.decompose() # 获取文本，进行截取，赋值给desc
desc = soup.text[0:150] models.Article.objects.create(title=title,content=str(soup),desc=desc, user=request.user)
return redirect("/cn_backend/")
return render(request, "backend/add_article.html", locals())
