crawlab_feader/NoteWork/details/details.py

# -*- coding: utf-8 -*-
"""
Created on 2021-12-13 13:25:15
---------
@summary:
---------
@author: 马国鹏
"""
import json
import sys
sys.path.append('/app/spiders/sword_feapder/FworkSpider')
import time
from urllib.parse import urljoin

import feapder
from feapder.utils.tools import wechat_warning
import execjs
from items.spider_item import DataBakItem, MgpListItem
from feapder.db.mongodb import MongoDB
from untils.attachment import AttachmentDownloader


class Details(feapder.Spider):
    _to_db = None
    db_name = 'mgp_list'
    send_list = []
    # 定义mongo链接
    @property
    def to_db(self):
        if not self._to_db:
            self._to_db = MongoDB()
        return self._to_db

    def start_requests(self):
        while True:
            data_lsit = self.to_db.find(self.db_name,{"parser_name":"details"},sort={"item.publishtime":-1},limit=50)
            for item in data_lsit:
                print(11111)
                request_params = item.get("request_params")
                if item.get("js"):
                    eval(item.get("js"))
                if item.get("ex_python"):
                    exec(item.get("ex_python"))
                if item.get("proxies"):

                    yield feapder.Request(url=item.get("parse_url"),item=item.get("item"),files=item.get("files"),
                                          deal_detail=item.get("deal_detail"),
                                          callback=eval(item.get("parse")),base_info=item,**request_params)
                else:
                    yield feapder.Request(url=item.get("parse_url"), item=item.get("item"), files=item.get("files"),
                                          deal_detail=item.get("deal_detail"),
                                          callback=eval(item.get("parse")), base_info=item,proxies=False,**request_params)

                self.to_db.delete(self.db_name,item)
            break

    def detail_get(self,request,response):
        items = request.item
        list_item = DataBakItem()
        for key in items:
            list_item.__setitem__(key,items[key])
        html = ''
        for xpath in request.deal_detail:
            html = response.xpath(xpath).extract_first()  # 标书详细内容
            if html is not None:
                break

        list_item.contenthtml = html
        if request.files:
            files_info = request.files
            files =  response.xpath(files_info.get("list_xpath"))
            if request.files_info:
                files_info = request.files_info
                files = response.xpath(files_info.get("list_xpath"))
                if request.files_info:
                    files_info = request.files_info
                    files = response.xpath(files_info.get("list_xpath"))
                    if len(files) > 0:
                        attachments = {}
                        for index, info in enumerate(files):
                            file_url = info.xpath(files_info.get("url_xpath")).extract_first()
                            file_name = info.xpath(files_info.get("name_xpath")).extract_first()
                            if files_info.get("host"):
                                file_url = urljoin(files_info.get("host"), file_url)
                            if not files_info.get("file_type"):
                                file_type = file_url.split("?")[0].split(".")[-1].lower()
                            else:
                                file_type = files_info.get("file_type")
                            if file_type in files_info.get("files_type") and files_info.get("url_key") in file_url:
                                attachment = AttachmentDownloader().fetch_attachment(
                                    file_name=file_name, file_type=file_type, download_url=file_url,
                                    enable_proxy=False)
                                attachments[len(attachments) + 1] = attachment
                        if len(attachments) == 0:
                            pass
                        else:
                            list_item.projectinfo = {"attachment": attachments}


        yield list_item

    def detail_json(self,request,response):
        items = request.item
        list_item = DataBakItem()
        for key in items:
            list_item.__setitem__(key,items[key])
        exec(request.deal_detail)

        yield list_item
    def detail_post(self,request,response):
        items = request.item
        list_item = DataBakItem()
        for key in items:
            list_item.__setitem__(key,items[key])
        exec(request.deal_detail)

        yield list_item

    def failed_request(self, request, response):
        '''请求、解析次数超过上限后，将原信息重新保存至mongo，并修改failed字段'''
        if response is None:
            code = 0
        else:
            code = response.status_code
        err_dic = {"200":"analysis","400":"download","500":"servers","300":"download"}
        if 200<=code<300:
            err = 'analysis'
        elif 300<=code<400:
            err = 'download'
        elif 400<=code<500:
            err = 'download'
        elif 500<=code:
            err = "servers"
        else:
            err = "timeout"
        mgp = MgpListItem()
        mgp.code=code
        mgp.error=err
        items = request.base_info
        for key in items:
            mgp.__setitem__(key,items[key])
        mgp.failed +=1
        if mgp.pri is None:
            mgp.pri = 0

        if mgp.pri > 5:
            if mgp.failed in(10,30,50,100,200)or mgp.failed>200:
                if self.send_list.count(mgp.item.get("site")) == mgp.pri - 5:
                    '''
                    根据爬虫优先级报警'''
                    info= f'''`
        您的爬虫出现超<font color="#FF0000">{mgp.failed}</font>次请求、解析失败的任务。
        > **爬虫名称:** {mgp.item.get("site")}
        > **栏目名称:** {mgp.item.get("channel")}
        > **爬虫代码:** {mgp.item.get("spidercode")}
        > **爬虫等级:** {mgp.pri}
        > **所属管理人员:** {mgp.author}
        请登录剑鱼爬虫管理平台查看详情。
        `'''
                    wechat_warning(info)
                    self.send_list.append(mgp.item.get("site"))
        yield mgp

    def end_callback(self):
        print("爬虫结束")



if __name__ == "__main__":
    Details(redis_key="magp:details1").start()