ASJServer/Controller/FAQController.py

#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import json
import os
import shutil
import time
import traceback

from django.http import HttpResponse
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
from django.views.generic.base import View

from Ansjer.config import BASE_DIR, SERVER_TYPE
from Ansjer.config_formal import SERVER_DOMAIN
from Ansjer.config_test import SERVER_DOMAIN
from Model.models import FAQModel
from Object.RedisObject import RedisObject
from Object.ResponseObject import ResponseObject
from Object.TokenObject import TokenObject
from var_dump import var_dump

from Service.ModelService import ModelService


class FAQUploadView(View):
    @method_decorator(csrf_exempt)
    def dispatch(self, request, *args, **kwargs):
        return super(FAQUploadView, self).dispatch(request, *args, **kwargs)

    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.GET
        fileName = request.FILES.get('fileName', None)
        return self.validate(fileName, request_dict)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.POST
        fileName = request.FILES.get('fileName', None)
        return self.validate(fileName, request_dict)

    def validate(self, fileName, request_dict):

        token = TokenObject(request_dict.get('token', None))

        response = ResponseObject()
        if token.code != 0:
            return response.json(token.code)

        own_permission = ModelService.check_perm(userID=token.userID, permID=120)
        if own_permission is not True:
            return response.json(404)

        try:
            redisObject = RedisObject()
            path = '/'.join((BASE_DIR, 'static/FAQImages/tmp')).replace('\\', '/') + '/'
            # path = '/'.join((BASE_DIR, 'static/{user}/FAQImages'.format(user=token.userID))).replace('\\', '/') + '/'
            if not os.path.exists(path):
                os.makedirs(path)

            # 先从redis中取出token对应的图片信息
            images = redisObject.get_data(key=token.token)
            if images is not False:
                images = json.loads(images)
                # 判断此次编辑是否已经存在对应的图片
                if images.__contains__(str(fileName)):
                    file_name = images[str(fileName)]
                    index = file_name.find('static/')
                    filePath = file_name[index:]
                    filePath = SERVER_DOMAIN + 'faq/image/' + filePath
                    # filePath = "http://192.168.136.35:8000/" + 'faq/image/' + filePath
                    return response.json(0, {'filePath': filePath})

            # redis中没有对应的图片信息
            tmp_name = str(fileName)
            suffix = tmp_name[tmp_name.find('.'):]
            tmp_file_name = int(time.time())
            tmp_file_name = '{file_name}{suffix}'.format(file_name=tmp_file_name, suffix=suffix)

            file_name = path + str(tmp_file_name)
            if os.path.exists(file_name):
                os.remove(file_name)

            destination = open(file_name, 'wb+')
            for chunk in fileName.chunks():
                destination.write(chunk)
            destination.close()

            # 把图片信息保存到redis中
            images = redisObject.get_data(token.token)
            if images is False:
                images = json.dumps({})

            images = json.loads(images)
            images[tmp_name] = file_name
            redisObject.set_data(key=token.token, val=json.dumps(images), expire=3600)

        except Exception as e:
            errorInfo = traceback.format_exc()
            print('上传文件错误: %s' % errorInfo)
            return response.json(700, {'details': repr(e)})
        else:
            index = file_name.find('static/')
            filePath = file_name[index:]
            filePath = SERVER_DOMAIN + 'faq/image/' + filePath
            # filePath = "http://192.168.136.35:8000/" + 'faq/image/' + filePath
            return response.json(0, {'filePath': filePath})


class getFAQImage(View):
    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        filePath = kwargs.get('filePath', None)
        filePath.encode(encoding='utf-8', errors='strict')
        response = ResponseObject()
        return self.getFile(filePath, response)

    def get(self, request, *args, **kwargs):
        request.encoding = 'gb2312'
        filePath = kwargs.get('filePath', None)
        response = ResponseObject()
        filePath.encode(encoding='gb2312', errors='strict')
        return self.getFile(filePath, response)

    def getFile(self, filePath, response):
        if filePath:
            pass
        else:
            return response.json(800)
        fullPath = os.path.join(BASE_DIR, filePath).replace('\\', '/')

        var_dump(fullPath)
        if os.path.isfile(fullPath):
            try:
                Imagedata = open(fullPath, 'rb').read()
            except Exception as e:
                return response.json(906, repr(e))
            else:
                return HttpResponse(Imagedata, content_type="image/jpeg")
        else:
            return response.json(907)


class FAQView(View):
    @method_decorator(csrf_exempt)
    def dispatch(self, *args, **kwargs):
        return super(FAQView, self).dispatch(*args, **kwargs)

    def post(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.POST
        operation = kwargs.get('operation', None)
        return self.validate(request_dict, operation)

    def get(self, request, *args, **kwargs):
        request.encoding = 'utf-8'
        request_dict = request.GET
        operation = kwargs.get('operation', None)
        return self.validate(request_dict, operation)

    def validate(self, request_dict, operation):
        token = TokenObject(request_dict.get('token', None))
        response = ResponseObject()
        if token.code != 0:
            return response.json(token.code)

        if operation == 'add':
            return self.do_add(token, request_dict, response)
        elif operation == 'query':
            return self.do_query(token.userID, request_dict, response)
        elif operation == 'update':
            return self.do_update(token, request_dict, response)
        elif operation == 'delete':
            return self.do_delete(token.userID, request_dict, response)
        else:
            return response.json(404)

    def do_add(self, token, request_dict, response):

        own_permission = ModelService.check_perm(userID=token.userID, permID=120)
        if own_permission is not True:
            return response.json(404)

        title = request_dict.get('title', None)
        content = request_dict.get('content', None)

        if title and content:
            try:
                # 对content中的图片路径进行修改
                content = str(content)
                content = content.replace('faq/image/static/FAQImages/tmp', 'faq/image/static/FAQImages')

                # 取出redis中保存的此次上传的图片信息
                redisObject = RedisObject()
                images = redisObject.get_data(key=token.token)
                if images is not False:
                    images = json.loads(images)

                    # 把图片从临时文件移动到FAQ资源文件夹下
                    for k, v in images.items():
                        start_index1 = v.find('tmp/')
                        start_index2 = start_index1 + 4
                        new_path = v[0:start_index1] + v[start_index2:]
                        shutil.move(v, new_path)
                now_time = int(time.time())
                FAQModel.objects.create(**{
                    'title': title,
                    'content': content,
                    'add_time': now_time,
                    'update_time': now_time

                })

                # 删除redis中token对应的信息
                redisObject.del_data(key=token.token)
            except Exception as e:
                print(e)
                return response.json(174)

            return response.json(0)
        else:
            return response.json(444)

    def do_query(self, userID, request_dict, response):

        page = request_dict.get('page', None)
        line = request_dict.get('line', None)
        search_key = request_dict.get('search_key', None)
        if page and line:
            if search_key:
                own_permission = ModelService.check_perm(userID=userID, permID=110)
                if own_permission is not True:
                    return response.json(404)
                faq_qs = FAQModel.objects.filter(title__contains=search_key)
            else:
                own_permission = ModelService.check_perm(userID=userID, permID=100)
                if own_permission is not True:
                    return response.json(404)

                faq_qs = FAQModel.objects.filter()

            if not faq_qs.exists():
                return response.json(0, {'count': 0, 'data': []})
            count = faq_qs.count()
            page = int(page)
            line = int(line)
            start = (page - 1) * line
            end = start + line
            faq_qs = faq_qs.values()[start:end]

            return response.json(0, {'count': count, 'data': list(faq_qs)})
        else:
            return response.json(444)

    def do_update(self, token, request_dict, response):
        own_permission = ModelService.check_perm(userID=token.userID, permID=130)
        if own_permission is not True:
            return response.json(404)

        id = request_dict.get('id', None)
        title = request_dict.get('title', None)
        content = request_dict.get('content', None)

        if id:
            now_time = int(time.time())
            data = {
                'update_time': now_time
            }

            if title:
                data['title'] = title

            if content:
                content = str(content)
                content = content.replace('faq/image/static/FAQImages/tmp', 'faq/image/static/FAQImages')

                # 取出redis中保存的此次上传的图片信息
                redisObject = RedisObject()
                images = redisObject.get_data(key=token.token)
                if images is not False:
                    images = json.loads(images)

                    # 把图片从临时文件移动到FAQ资源文件夹下
                    for k, v in images.items():
                        start_index1 = v.find('tmp/')
                        start_index2 = start_index1 + 4
                        new_path = v[0:start_index1] + v[start_index2:]
                        shutil.move(v, new_path)
                # 删除redis中token对应的信息
                redisObject.del_data(key=token.token)

                data['content'] = content

            FAQModel.objects.filter(id=id).update(**data)

            return response.json(0)
        else:
            return response.json(444)

    def do_delete(self, userID, request_dict, response):

        own_permission = ModelService.check_perm(userID=userID, permID=140)
        if own_permission is not True:
            return response.json(404)

        id = request_dict.get('id', None)
        if id:
            try:
                faq_qs = FAQModel.objects.filter(id=id)
                faq_qs.delete()
            except Exception as e:
                print(e)
                return response.json(173)
            else:
                return response.json(0)
        else:
            return response.json(444)