django之百度Ueditor富文本编辑器后台集成

Python3 + Django2.0 百度Ueditor 富文本编辑器的集成

百度富文本编辑器官网地址：http://fex.baidu.com/ueditor/

疑问：为什么要二次集成？

答案：因为百度富文本编辑器Ueditor没有对python的支持

步骤1：

　　在官网下载Ueditor的任意版本代码：http://ueditor.baidu.com/website/download.html#ueditor

步骤2：

　　将下载的代码放入到 django 项目中

步骤3：前端引用

　　在前端HTML代码中引用富文本编辑器【注意：此时因为还没有实例化富文本编辑器，所以暂时无效果！！！】

<!--  引用对应的js文件 -->
    <script type="text/javascript" charset="utf-8"
            src="{% static 'xxx/xxx/ueditor.config.js' %}"></script>
    <script type="text/javascript" charset="utf-8"
            src="{% static 'xxx/xxx/ueditor.all.min.js' %}"></script>

<!-- 富文本编辑器 -->

<div>
    <script id="uedit" type="text/plain></script>
</div>

步骤6：js代码

　　在前端引用之后，使用js实例化Ueditor，并且配置一些参数：

// 富文本编辑器处理方法
News.prototype.listenEditor = function () {
    // 实例化一个富文本编辑器
    window.ue = UE.getEditor('editor', {
        'initialFrameHeight': 400,//设置富文本编辑器的高度
        //'serverUrl': '/ueditor/upload/', //设置文件上传的视图函数（服务器路径）
/*
* initialFrameWidth:"100%"：设置富文本 编辑器自适应宽度
* 也可以在：ueditor.config.js中修改initialFrameWidth 达到同样的目的
*/
        initialFrameWidth:"100%"
    });
};    

步骤6：军事机密，django + python服务端的集成处理（直接复制就可以用了）

　　1> views.py 中逻辑代码，还需要在settings进行对应的配置

# encoding: utf-8

"""
百度富文本编辑器python版本服务端集成代码
"""

import json
import re
import string
import time
import hashlib
import random
import base64
import sys
import os
from urllib import parse
# from django.conf import settings
from django.conf import settings
from django.http import JsonResponse
from django.shortcuts import reverse
from django.views.decorators.csrf import csrf_exempt
from django.http import FileResponse
from django.views.generic import View
from django.utils.decorators import method_decorator
from django.views.decorators.http import require_http_methods

# 更改工作目录。这么做的目的是七牛qiniu的sdk
# 在设置缓存路径的时候默认会设置到C:/Windows/System32下面
# 会造成没有权限创建。
# os.chdir(os.path.dirname(__file__))   # 这个在我的项目中设置后，服务器启动回报：manage.py 文件不存在，注释后一切正常
try:
    import qiniu
except:
    raise RuntimeError("3333333333")
    # pass
from io import BytesIO

# 七牛相关配置
UEDITOR_QINIU_ACCESS_KEY = ""
UEDITOR_QINIU_SECRET_KEY = ""
UEDITOR_QINIU_BUCKET_NAME = ""
UEDITOR_QINIU_DOMAIN = ""

# ueditor 富文本编辑器的 config.json 配置文件路径
UEDITOR_CONFIG_PATH = ""
# 配置文件上传路径
UEDITOR_UPLOAD_PATH = ""
# 是否要将文件上传到七牛
UEDITOR_UPLOAD_TO_QINIU = False
# 是否要将文件上传到自己的服务器
UEDITOR_UPLOAD_TO_SERVER = False

# 用来判断是否要将文件上传到自己的服务器
try:
    UEDITOR_UPLOAD_TO_SERVER = settings.UEDITOR_UPLOAD_TO_SERVER
    if UEDITOR_UPLOAD_TO_SERVER:
        UEDITOR_UPLOAD_PATH = settings.UEDITOR_UPLOAD_PATH
        if not os.path.exists(UEDITOR_UPLOAD_PATH):
            os.mkdir(UEDITOR_UPLOAD_PATH)
except Exception as e:
    os.chdir(os.path.join('..', '..', os.path.dirname(__file__)))
    raise RuntimeError("123"+os.getcwd())
    # pass

# 用来判断是否要将文件上传到七牛
try:
    UEDITOR_UPLOAD_TO_QINIU = settings.UEDITOR_UPLOAD_TO_QINIU
except:
    raise RuntimeError("1111111111111111")
    # pass

# 如果既没有配置上传到本地，又没有配置上传到七牛，那么就抛出异常
if not UEDITOR_UPLOAD_PATH and not UEDITOR_UPLOAD_TO_QINIU:
    raise RuntimeError("UEditor的UEDITOR_UPLOAD_TO_SERVER或者UEDITOR_UPLOAD_TO_QINIU必须配置一项！")

# 判断是否配置了config.json文件的路径
try:
    UEDITOR_CONFIG_PATH = settings.UEDITOR_CONFIG_PATH
except:
    raise RuntimeError("请配置UEditor的配置文件的路径！")

# 如果配置了七牛的配置信息
if UEDITOR_UPLOAD_TO_QINIU:
    try:
        UEDITOR_QINIU_ACCESS_KEY = settings.UEDITOR_QINIU_ACCESS_KEY
        UEDITOR_QINIU_SECRET_KEY = settings.UEDITOR_QINIU_SECRET_KEY
        UEDITOR_QINIU_BUCKET_NAME = settings.UEDITOR_QINIU_BUCKET_NAME
        UEDITOR_QINIU_DOMAIN = settings.UEDITOR_QINIU_DOMAIN
    except Exception as e:
        option = e.args[0]
        raise RuntimeError('请在app.config中配置%s！' % option)
#
# @method_decorator(decorator,name=''):将函数装饰器转换为类装饰器
# @csrf_exempt：csrftoken装饰器
# @require_http_methods(['GET','POST']):请求装饰器，只允许 get 、 post 请求
#
@method_decorator([csrf_exempt, require_http_methods(['GET', 'POST'])], name='dispatch')
class UploadView(View):
    # 构造函数
    def __init__(self):
        super(UploadView, self).__init__()

    def _random_filename(self, rawfilename):
        """
        随机的文件名，保证文件名称不会冲突
        """
        letters = string.ascii_letters
        random_filename = str(time.time()) + "".join(random.sample(letters, 5))
        filename = hashlib.md5(random_filename.encode('utf-8')).hexdigest()
        subffix = os.path.splitext(rawfilename)[-1]
        return filename + subffix

    def _json_result(self, state='', url='', title='', original=''):
        """
        返回指定格式的json数据的
        """
        result = {
            'state': state,
            'url': url,
            'title': title,
            'original': original
        }
        return JsonResponse(result)

    def _upload_to_qiniu(self, upfile, filename):
        """
        上传文件到七牛
        """
        if not sys.modules.get('qiniu'):
            raise RuntimeError('没有导入qiniu模块！')
        q = qiniu.Auth(UEDITOR_QINIU_ACCESS_KEY, UEDITOR_QINIU_SECRET_KEY)
        token = q.upload_token(UEDITOR_QINIU_BUCKET_NAME)
        buffer = BytesIO()
        for chunk in upfile.chunks():
            buffer.write(chunk)
        buffer.seek(0)
        ret, info = qiniu.put_data(token, filename, buffer.read())
        if info.ok:
            url = parse.urljoin(UEDITOR_QINIU_DOMAIN, ret['key'])
            return 'SUCCESS', url, ret['key'], ret['key']
        else:
            return 'FAIL', None, None, None

    def _upload_to_server(self, upfile, filename):
        """
        上传文件到自己的服务器
        """
        with open(os.path.join(UEDITOR_UPLOAD_PATH, filename), 'wb') as fp:
            for chunk in upfile.chunks():
                fp.write(chunk)
        url = reverse("ueditor:send_file", kwargs={"filename": filename})
        return 'SUCCESS', url, filename, filename

    def _action_config(self):
        """
        处理configl类型的响应
        将配置文件以 json 格式返回给前端
        """
        config_path = UEDITOR_CONFIG_PATH
        with open(config_path, 'r', encoding='utf-8') as fp:
            result = json.loads(re.sub(r'\/\*.*\*\/', '', fp.read()))
            return JsonResponse(result)

    def _action_upload(self, request):
        """
        处理文件（图片，视频，普通文件）上传
        """
        upfile = request.FILES.get("upfile")
        filename = self._random_filename(upfile.name)

        qiniu_result = None
        server_result = None

        if UEDITOR_UPLOAD_TO_QINIU:
            qiniu_result = self._upload_to_qiniu(upfile, filename)

        if UEDITOR_UPLOAD_TO_SERVER:
            server_result = self._upload_to_server(upfile, filename)

        if qiniu_result and qiniu_result[0] == 'SUCCESS':
            return self._json_result(*qiniu_result)
        elif server_result and server_result[0] == 'SUCCESS':
            return self._json_result(*server_result)
        else:
            return self._json_result()

    def _action_scrawl(self, request):
        base64data = request.form.get("upfile")
        img = base64.b64decode(base64data)
        filename = self._random_filename('xx.png')
        with open(os.path.join(UEDITOR_UPLOAD_PATH, filename), 'wb') as fp:
            fp.write(img)
        url = reverse('ueditor:send_file', kwargs={"filename": filename})
        return self._json_result('SUCCESS', url, filename, filename)

    # 类视图入口函数
    # 当请求该类视图时，会优先执行此函数
    # activate：文件类型
    def dispatch(self, request, *args, **kwargs):
        super(UploadView, self).dispatch(request, *args, **kwargs)
        action = request.GET.get('action')
        if action == 'config':
            return self._action_config()
        elif action in ['uploadimage', 'uploadvideo', 'uploadfile']:
            return self._action_upload(request)
        elif action == 'uploadscrawl':
            return self._action_scrawl(request)
        else:
            return self._json_result()

def send_file(request, filename):
    fp = open(os.path.join(UEDITOR_UPLOAD_PATH, filename), 'rb')
    response = FileResponse(fp)
    response['Content-Type'] = "application/octet-stream"
    return response

　　2> settings.py 中的配置

# """
#     百度UEditor富文本编辑配置
# """
# 是否要将文件上传到七牛（必须）
UEDITOR_UPLOAD_TO_QINIU = True
# 是否要将文件上传到自己的服务器(必须)
UEDITOR_UPLOAD_TO_SERVER = False

# 七牛相关配置（UEDITOR_UPLOAD_TO_QINIU:True:则必须进行配置，否则无须配置）
UEDITOR_QINIU_ACCESS_KEY = "自己的ACCESS_KEY"
UEDITOR_QINIU_SECRET_KEY = "自己的SECRET_KEY "
UEDITOR_QINIU_BUCKET_NAME = "对象存储空间名称"
# 域名 http://域名/
UEDITOR_QINIU_DOMAIN = "http://域名/"

# config.json 配置文件路径
# php版本的Ueditor config.json 路径为：ueditor\utf8-php\php\config.json
UEDITOR_CONFIG_PATH = os.path.join(BASE_DIR, 'front', 'dist', 'ueditor', 'utf8-php', 'php', 'config.json')

# 配置文件上传路径（UEDITOR_UPLOAD_TO_SERVER:True：则必须进行配置，否则无须配置）
# UEDITOR_UPLOAD_PATH = MEDIA_ROOT