364 lines
13 KiB
Python
364 lines
13 KiB
Python
# coding=UTF-8
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from importlib.resources import path
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import os, sys
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import requests
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import json
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import pdfkit
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import codecs
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import subprocess
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import re
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from bs4 import BeautifulSoup
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from datetime import datetime, timedelta
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from time import sleep
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"""
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本项目开源地址 https://github.com/LeLe86/vWeChatCrawl
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讨论QQ群 703431832 加群暗号:不止技术流
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"""
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# 保存文件
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def SaveFile(fpath, fileContent):
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with open(fpath, 'w', encoding='utf-8') as f:
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f.write(fileContent)
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# 读取文件
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def ReadFile(filepath):
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with open(filepath, 'r', encoding='utf-8') as f:
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all_the_text = f.read()
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return all_the_text
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# 时间戳转日期
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def Timestamp2Datetime(stampstr):
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dt = datetime.utcfromtimestamp(stampstr)
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dt = dt + timedelta(hours=8)
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newtimestr = dt.strftime("%Y%m%d_%H%M%S")
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return newtimestr
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# 初始化环境
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def GetJson():
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jstxt = ReadFile("config.json")
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jstxt = jstxt.replace("\\\\", "/").replace("\\", "/") # 防止json中有 / 导致无法识别
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jsbd = json.loads(jstxt)
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if jsbd["htmlDir"][-1] == "/":
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jsbd["htmlDir"] = jsbd["htmlDir"][:-1]
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if jsbd["jsonDir"][-1] == "/":
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jsbd["jsonDir"] = jsbd["jsonDir"][:-1]
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if jsbd["usefulDir"][-1] == "/":
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jsbd["usefulDir"] = jsbd["usefulDir"][:-1]
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return jsbd
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# 下载url网页
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def DownLoadHtml(url):
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# 构造请求头
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headers = {
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'User-Agent': 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36',
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'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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'Connection': 'keep-alive',
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'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3'
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}
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session = requests.Session()
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session.trust_env = False
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response = session.get(url, headers=headers)
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if response.status_code == 200:
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htmltxt = response.text # 返回的网页正文
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return htmltxt
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else:
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return None
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# 将图片从远程下载保存到本地
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def DownImg(url, savepath):
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# 构造请求头
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headers = {
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'User-Agent': 'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36',
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'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
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'Connection': 'keep-alive',
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'Accept-Language': 'zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3'
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}
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session = requests.Session()
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session.trust_env = False
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response = session.get(url, headers=headers)
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with open(savepath, 'wb') as f:
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f.write(response.content)
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# 修改网页中图片的src，使图片能正常显示
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def ChangeImgSrc(htmltxt, saveimgdir, htmlname):
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bs = BeautifulSoup(htmltxt, "lxml") # 由网页源代码生成BeautifulSoup对象，第二个参数固定为lxml
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imgList = bs.findAll("img")
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imgindex = 0
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for img in imgList:
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imgindex += 1
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originalURL = "" # 图片真实url
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if "data-src" in img.attrs: # 有的<img 标签中可能没有data-src
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originalURL = img.attrs['data-src']
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elif "src" in img.attrs: # 如果有src则提取出来
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originalURL = img.attrs['src']
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else:
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originalURL = ""
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if originalURL.startswith("//"): # 如果url以//开头，则需要添加http：
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originalURL = "http:" + originalURL
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if len(originalURL) > 20:
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print("\r down imgs " + "▇" * imgindex + " " + str(imgindex), end="")
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if "data-type" in img.attrs:
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imgtype = img.attrs["data-type"]
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else:
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imgtype = "png"
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imgname = htmlname + "_" + str(imgindex) + "." + imgtype # 形如 1.png的图片名
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imgsavepath = os.path.join(saveimgdir, imgname) # 图片保存目录
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DownImg(originalURL, imgsavepath)
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img.attrs["src"] = "images/" + imgname # 网页中图片的相对路径
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else:
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img.attrs["src"] = ""
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ChangeCssSrc(bs) # 修改link标签
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ChangeContent(bs) # 修改js_content的style，使正文能正常显示
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allscript = bs.findAll("script")
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for script in allscript:
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if "src" in script.attrs: # 解决远程加载js失败导致打开网页很慢的问题
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script["src"] = ""
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return str(bs) # 将BeautifulSoup对象再转换为字符串，用于保存
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def ChangeCssSrc(bs):
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linkList = bs.findAll("link")
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for link in linkList:
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href = link.attrs["href"]
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if href.startswith("//"):
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newhref = "http:" + href
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link.attrs["href"] = newhref
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def ChangeContent(bs):
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jscontent = bs.find(id="js_content")
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if jscontent:
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jscontent.attrs["style"] = ""
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else:
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print("-----可能文章被删了-----")
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# 文章类
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class Article():
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def __init__(self, url, pubdate, idx, title):
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self.url = url
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self.pubdate = pubdate
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self.idx = idx
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self.title = title
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# 从fiddler保存的json文件中提取文章url等信息
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def GetArticleList(jsondir):
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filelist = os.listdir(jsondir)
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ArtList = []
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for file in filelist:
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try:
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filepath = os.path.join(jsondir, file)
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filetxt = ReadFile(filepath)
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jsbody = json.loads(filetxt)
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general_msg_list = jsbody["general_msg_list"]
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jsbd2 = json.loads(general_msg_list)
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list = jsbd2["list"]
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for item in list: # 一个item里可能有多篇文章
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artidx = 1 # 请注意这里的编号只是为了保存html方便，并不对应于真实的文章发文位置(比如头条、次条、3条)
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comm_msg_info = item["comm_msg_info"]
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pubstamp = comm_msg_info["datetime"]
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pubdate = Timestamp2Datetime(pubstamp)
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if comm_msg_info["type"] == 49: # 49为普通图文类型，还有其他类型，暂不考虑
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app_msg_ext_info = item["app_msg_ext_info"]
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url = app_msg_ext_info["content_url"] # 文章链接
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idx = artidx
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title = app_msg_ext_info["title"]
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art = Article(url, pubdate, idx, title)
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if len(url) > 3: # url不完整则跳过
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ArtList.append(art)
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print(len(ArtList), pubdate, idx, title)
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if app_msg_ext_info["is_multi"] == 1: # 一次发多篇
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artidx += 1
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multi_app_msg_item_list = app_msg_ext_info["multi_app_msg_item_list"]
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for subArt in multi_app_msg_item_list:
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url = subArt["content_url"]
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idx = artidx
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title = subArt["title"]
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art = Article(url, pubdate, idx, title)
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if len(url) > 3:
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ArtList.append(art)
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print(len(ArtList), pubdate, idx, title)
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except:
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print("跳过，可不用管", file)
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return ArtList
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def DownHtmlMain(jsonDir, saveHtmlDir):
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saveHtmlDir = jsbd["htmlDir"]
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if not os.path.exists(saveHtmlDir):
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os.makedirs(saveHtmlDir)
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saveImgDir = saveHtmlDir + "/images"
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if not os.path.exists(saveImgDir):
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os.makedirs(saveImgDir)
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ArtList = GetArticleList(jsonDir)
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ArtList.sort(key=lambda x: x.pubdate, reverse=True) # 按日期倒序排列
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totalCount = len(ArtList)
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idx = 0
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for art in ArtList:
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idx += 1
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artname = art.pubdate + "_" + str(art.idx)
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arthtmlname = artname + ".html"
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arthtmlsavepath = saveHtmlDir + "/" + arthtmlname
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print(idx, "of", totalCount, artname, art.title)
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# 如果已经有了则跳过，便于暂停后续传
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if os.path.exists(arthtmlsavepath):
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print("exists", arthtmlsavepath)
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continue
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arthtmlstr = DownLoadHtml(art.url)
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arthtmlstr = ChangeImgSrc(arthtmlstr, saveImgDir, artname)
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print("\r", end="")
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SaveFile(arthtmlsavepath, arthtmlstr)
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sleep(0) # 防止下载过快被微信屏蔽，间隔3秒下载一篇
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# 把一个文件夹下的html文件都转为pdf
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def PDFDir(htmldir, pdfdir):
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if not os.path.exists(pdfdir):
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os.makedirs(pdfdir)
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flist = os.listdir(htmldir)
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for f in flist:
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if (not f[-5:] == ".html") or ("tmp" in f): # 不是html文件的不转换，含有tmp的不转换
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continue
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htmlpath = htmldir + "/" + f
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tmppath = htmlpath[:-5] + "_tmp.html" # 生成临时文件，供转pdf用
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htmlstr = ReadFile(htmlpath)
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bs = BeautifulSoup(htmlstr, "lxml")
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title = ""
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# pdf文件名中包含文章标题，但如果标题中有不能出现在文件名中的符号则会转换失败
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titleTag = bs.find(id="activity-name")
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if titleTag is not None:
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title = "_" + titleTag.get_text().replace(" ", "").replace(" ", "").replace("\n", "").replace("|", "").replace(":", "")
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ridx = htmlpath.rindex("/") + 1
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pdfname = htmlpath[ridx:-5] + title
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pdfpath = pdfdir + "/" + pdfname + ".pdf"
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"""
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把js等去掉，减少转PDF时的加载项，
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注意此处去掉了css(link），如果发现pdf格式乱了可以不去掉css
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"""
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[s.extract() for s in bs(["script", "iframe", "link"])]
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SaveFile(tmppath, str(bs))
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try:
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PDFOne(tmppath, pdfpath)
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except:
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print("转pdf失败，可能是因为标题中有特殊字符", f)
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# 把一个Html文件转为pdf
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def PDFOne(htmlpath, pdfpath, skipExists=True, removehtml=True):
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print(htmlpath, pdfpath)
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options = {
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'page-size': 'Letter',
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'margin-top': '0.75in',
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'margin-right': '0.75in',
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'margin-bottom': '0.75in',
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'margin-left': '0.75in',
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'encoding': "UTF-8",
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'custom-header': [
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('Accept-Encoding', 'gzip')
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],
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# 'cookie': [
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# ('cookie-empty-value', '""')
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# ('cookie-name1', 'cookie-value1'),
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# ('cookie-name2', 'cookie-value2'),
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# ],
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'no-outline': None,
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'enable-local-file-access': None
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}
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pdfkit.from_file(htmlpath, pdfpath, options=options, verbose=True)
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# if skipExists and os.path.exists(pdfpath):
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# print("pdf exists", pdfpath)
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# if removehtml:
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# os.remove(htmlpath)
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# return
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# exepath = "wkhtmltopdf.exe" # 把wkhtmltopdf.exe文件保存到与本py文件相同的目录下
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# cmdlist = []
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# cmdlist.append(" --load-error-handling ignore ")
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# cmdlist.append(" --page-height 200 ") # 数字可以自己调节，也可以不加这两行
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# cmdlist.append(" --page-width 140 ")
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# cmdlist.append(" " + htmlpath + " ")
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# cmdlist.append(" " + pdfpath + " ")
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# cmdstr = exepath + "".join(cmdlist)
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# print(cmdstr)
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# result = subprocess.check_call(cmdstr, shell=False)
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# stdout,stderr = result.communicate()
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# result.wait() #等待转换完一个再转下一个
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if removehtml:
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os.remove(htmlpath)
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"""
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1.设置：
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先去config.json文件中设置
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jsonDir：Fiddler生成的文件
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htmlDir：保存html的目录，路径中不能有空格
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pdfDir：保存pdf的目录，路径中不能有空格
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2.使用方法：
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运行 python start.py #开始下载html
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运行 python start.py pdf #把下载的html转pdf
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"""
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# 搜索关键字找到对应html并归类
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def SearchDir(htmldir, savedir):
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recordFile = 'execute-records'
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if not os.path.exists(savedir):
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os.makedirs(savedir)
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flist = os.listdir(htmldir)
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for f in flist:
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if (not f[-5:] == ".html") or ("tmp" in f): # 不是html文件的不转换，含有tmp的不转换
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continue
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FoundFlag = False
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htmlpath = htmldir + "/" + f
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tmppath = htmlpath[:-5] + ".html" # 生成临时文件，供转pdf用
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htmlstr = ReadFile(htmlpath)
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bs = BeautifulSoup(htmlstr, "lxml")
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# pdf文件名中包含文章标题，但如果标题中有不能出现在文件名中的符号则会转换失败
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keyWord = bs.find_all(text=re.compile("养老"))
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print(keyWord)
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if (keyWord):
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"""
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把js等去掉，减少转PDF时的加载项，
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注意此处去掉了css(link），如果发现pdf格式乱了可以不去掉css
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"""
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[s.extract() for s in bs(["script", "iframe"])]
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# , "link"
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SaveFile(savedir + '/' +f, str(bs))
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if __name__ == "__main__":
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if len(sys.argv) == 1:
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arg = None
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else:
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arg = sys.argv[1]
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if arg is None or arg == "html":
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jsbd = GetJson()
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saveHtmlDir = jsbd["htmlDir"]
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jsdir = jsbd["jsonDir"]
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DownHtmlMain(jsdir, saveHtmlDir)
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elif arg == "pdf":
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jsbd = GetJson()
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saveHtmlDir = jsbd["htmlDir"]
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savePdfDir = jsbd["pdfDir"]
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PDFDir(saveHtmlDir, savePdfDir)
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elif arg == "search":
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jsbd = GetJson()
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htmlDir = jsbd["htmlDir"]
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saveDir = jsbd["usefulDir"]
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SearchDir(htmlDir, saveDir)
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