Flask实战第57天：UEditor编辑器集成以及配置上传文件到七牛

相关链接

UEditor:http://ueditor.baidu.com/website/​

下载地址:http://ueditor.baidu.com/website/download.html#ueditor​

文档:http://fex.baidu.com/ueditor/​

UEditor没有Python版本，所以这里下载一个最新php版本的utf-8包

解压软件包，把php目录里面的config.json复制出来，然后删除php目录（因为我们是Python）

在flask项目static目录下创建目录ueditor，把以上图中的目录文件拷贝到static/ueditor中

flask配置

编辑配置文件config.py，添加如下配置

#上传到本地
UEDITOR_UPLOAD_PATH = os.path.join(os.path.dirname(__file__),'images')

#上传到七牛
UEDITOR_UPLOAD_TO_QINIU = True  #如果上传到七牛这里设置为True，上传到本地则为False
UEDITOR_QINIU_ACCESS_KEY = "xxxxxxx"
UEDITOR_QINIU_SECRET_KEY = "xxxxxxx"
UEDITOR_QINIU_BUCKET_NAME = "xxxxxx"
UEDITOR_QINIU_DOMAIN = "xxxxxxx"

flask需要有一个视图路由来处理，这里我们来配置一个蓝图，创建ueditor.py

#encoding: utf-8

from flask import (
    Blueprint,
    request,
    jsonify,
    url_for,
    send_from_directory,
    current_app as app
)
import json
import re
import string
import time
import hashlib
import random
import base64
import sys
import os
from urllib import parse
# 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__))
try:
    import qiniu
except:
    pass
from io import BytesIO

bp = Blueprint('ueditor',__name__,url_prefix='/ueditor')

UEDITOR_UPLOAD_PATH = ""
UEDITOR_UPLOAD_TO_QINIU = False
UEDITOR_QINIU_ACCESS_KEY = ""
UEDITOR_QINIU_SECRET_KEY = ""
UEDITOR_QINIU_BUCKET_NAME = ""
UEDITOR_QINIU_DOMAIN = ""

@bp.before_app_first_request
def before_first_request():
    global UEDITOR_UPLOAD_PATH
    global UEDITOR_UPLOAD_TO_QINIU
    global UEDITOR_QINIU_ACCESS_KEY
    global UEDITOR_QINIU_SECRET_KEY
    global UEDITOR_QINIU_BUCKET_NAME
    global UEDITOR_QINIU_DOMAIN
    UEDITOR_UPLOAD_PATH = app.config.get('UEDITOR_UPLOAD_PATH')
    if UEDITOR_UPLOAD_PATH and not os.path.exists(UEDITOR_UPLOAD_PATH):
        os.mkdir(UEDITOR_UPLOAD_PATH)

    UEDITOR_UPLOAD_TO_QINIU = app.config.get("UEDITOR_UPLOAD_TO_QINIU")
    if UEDITOR_UPLOAD_TO_QINIU:
        try:
            UEDITOR_QINIU_ACCESS_KEY = app.config["UEDITOR_QINIU_ACCESS_KEY"]
            UEDITOR_QINIU_SECRET_KEY = app.config["UEDITOR_QINIU_SECRET_KEY"]
            UEDITOR_QINIU_BUCKET_NAME = app.config["UEDITOR_QINIU_BUCKET_NAME"]
            UEDITOR_QINIU_DOMAIN = app.config["UEDITOR_QINIU_DOMAIN"]
        except Exception as e:
            option = e.args[0]
            raise RuntimeError('请在app.config中配置%s！'%option)

    csrf = app.extensions.get('csrf')
    if csrf:
        csrf.exempt(upload)

def _random_filename(rawfilename):
    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

@bp.route('/upload/',methods=['GET','POST'])
def upload():
    action = request.args.get('action')
    result = {}
    if action == 'config':
        config_path = os.path.join(bp.static_folder or app.static_folder,'ueditor','config.json')
        with open(config_path,'r',encoding='utf-8') as fp:
            result = json.loads(re.sub(r'\/\*.*\*\/','',fp.read()))

    elif action in ['uploadimage','uploadvideo','uploadfile']:
        image = request.files.get("upfile")
        filename = image.filename
        save_filename = _random_filename(filename)
        result = {
            'state': '',
            'url': '',
            'title': '',
            'original': ''
        }
        if UEDITOR_UPLOAD_TO_QINIU:
            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()
            image.save(buffer)
            buffer.seek(0)
            ret,info = qiniu.put_data(token,save_filename,buffer.read())
            if info.ok:
                result['state'] = "SUCCESS"
                result['url'] = parse.urljoin(UEDITOR_QINIU_DOMAIN,ret['key'])
                result['title'] = ret['key']
                result['original'] = ret['key']
        else:
            image.save(os.path.join(UEDITOR_UPLOAD_PATH, save_filename))
            result['state'] = "SUCCESS"
            result['url'] = url_for('ueditor.files',filename=save_filename)
            result['title'] = save_filename,
            result['original'] = image.filename

    elif action == 'uploadscrawl':
        base64data = request.form.get("upfile")
        img = base64.b64decode(base64data)
        filename = _random_filename('xx.png')
        filepath = os.path.join(UEDITOR_UPLOAD_PATH,filename)
        with open(filepath,'wb') as fp:
            fp.write(img)
        result = {
            "state": "SUCCESS",
            "url": url_for('files',filename=filename),
            "title": filename,
            "original": filename
        }
    return jsonify(result)

@bp.route('/files/<filename>/')
def files(filename):
    return send_from_directory(UEDITOR_UPLOAD_PATH,filename)

在主程序中注册蓝图

from flask import Flask,render_template
from ueditor import bp
import config

app = Flask(__name__)
app.config.from_object(config)

app.register_blueprint(bp)

@app.route('/')
def hello_world():
    return render_template('index.html')

if __name__ == '__main__':
    app.run(port=9000,debug=True)

编辑index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <script src="{{ url_for('static',filename='ueditor/ueditor.config.js') }}"></script>
    <script src="{{ url_for('static',filename='ueditor/ueditor.all.min.js') }}"></script>
    <title>Title</title>
</head>
<body>
<script id="editor" type="text/plain">
</script>
<script>
    var ue = UE.getEditor("editor",{
        'serverUrl': '/ueditor/upload/'
    });
</script>
</body>
</html>