update shell
ds19991999
parent
f8a47d20c1
commit
521ae25c1b
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from .csdn import run
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from .csdn import CSDN
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#!/usr/bin/env python
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# coding: utf-8
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import os, time, re
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import requests
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import threading
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from bs4 import BeautifulSoup, Comment
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from .tomd import Tomd
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def result_file(folder_name, file_name, article_name):
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folder = os.path.join(os.path.dirname(os.path.realpath(__file__)), "../"+article_name, folder_name)
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if not os.path.exists(folder):
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os.makedirs(folder)
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path = os.path.join(folder, file_name)
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file = open(path,"w")
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file.close()
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else:
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path = os.path.join(folder, file_name)
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return path
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def delete_ele(soup:BeautifulSoup, tags:list):
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for ele in tags:
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for useless_tag in soup.select(ele):
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useless_tag.decompose()
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def delete_ele_attr(soup:BeautifulSoup, attrs:list):
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for attr in attrs:
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for useless_attr in soup.find_all():
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del useless_attr[attr]
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def delete_blank_ele(soup:BeautifulSoup, eles_except:list):
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for useless_attr in soup.find_all():
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try:
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if useless_attr.name not in eles_except and useless_attr.text == "":
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useless_attr.decompose()
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except Exception:
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pass
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class TaskQueue(object):
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def __init__(self):
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self.VisitedList = []
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self.UnVisitedList = []
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def getVisitedList(self):
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return self.VisitedList
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def getUnVisitedList(self):
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return self.UnVisitedList
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def InsertVisitedList(self, url):
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if url not in self.VisitedList:
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self.VisitedList.append(url)
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def InsertUnVisitedList(self, url):
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if url not in self.UnVisitedList:
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self.UnVisitedList.append(url)
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def RemoveVisitedList(self, url):
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self.VisitedList.remove(url)
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def PopUnVisitedList(self,index=0):
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url = []
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if index and self.UnVisitedList:
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url = self.UnVisitedList[index]
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del self.UnVisitedList[:index]
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elif self.UnVisitedList:
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url = self.UnVisitedList.pop()
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return url
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def getUnVisitedListLength(self):
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return len(self.UnVisitedList)
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class CSDN(object):
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def __init__(self, username, article__folder_name):
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self.headers = {
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"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.70 Safari/537.36"
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}
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self.username = username
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self.TaskQueue = TaskQueue()
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self.article__folder_name = article__folder_name
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self.url_num = 1
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def start(self):
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"""获取文章标题和链接"""
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num = 0
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while True:
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num += 1
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url = u'https://blog.csdn.net/' + self.username + '/article/list/' + str(num)
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response = requests.get(url=url, headers=self.headers)
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html = response.text
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soup = BeautifulSoup(html, "html.parser")
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articles = soup.find_all('div', attrs={"class":"article-item-box csdn-tracking-statistics"})
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if len(articles) > 0:
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for article in articles:
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article_title = article.a.text.strip().replace(' ',': ')
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article_href = article.a['href']
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self.TaskQueue.InsertUnVisitedList([article_title, article_href])
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else:
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break
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def get_md(self, url):
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"""爬取文章"""
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response = requests.get(url=url, headers=self.headers)
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html = response.text
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soup = BeautifulSoup(html, 'lxml')
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content = soup.select_one("#content_views")
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# 删除注释
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for useless_tag in content(text=lambda text: isinstance(text, Comment)):
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useless_tag.extract()
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# 删除无用标签
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tags = ["svg", "ul", ".hljs-button.signin"]
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delete_ele(content, tags)
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# 删除标签属性
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attrs = ["class", "name", "id", "onclick", "style", "data-token", "rel"]
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delete_ele_attr(content,attrs)
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# 删除空白标签
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eles_except = ["img", "br", "hr"]
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delete_blank_ele(content, eles_except)
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# 转换为markdown
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md = Tomd(str(content)).markdown
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return md
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def write_readme(self):
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"""生成readme"""
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print("[++] 正在爬取 {} 的博文 ......".format(self.username))
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reademe_path = result_file(self.username,file_name="README.md",article_name=self.article__folder_name)
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with open(reademe_path,'w', encoding='utf-8') as reademe_file:
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readme_head = "# " + self.username + " 的博文\n"
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reademe_file.write(readme_head)
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for [article_title,article_href] in self.TaskQueue.UnVisitedList[::-1]:
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text = str(self.url_num) + '. [' + article_title + ']('+ article_href +')\n'
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reademe_file.write(text)
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self.url_num += 1
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self.url_num = 1
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def spider(self):
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"""爬取所有文章"""
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try:
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while True:
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[article_title,article_href] = self.TaskQueue.PopUnVisitedList()
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try:
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print("[++++] 正在处理URL：{}".format(article_href))
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file_name = re.sub(r'[\/:：*?"<>|]','-', article_title) + ".md"
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artical_path = result_file(folder_name=self.username, file_name=file_name, article_name=self.article__folder_name)
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md_head = "# " + article_title + "\n"
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md = md_head + self.get_md(article_href)
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with open(artical_path, "w", encoding="utf-8") as artical_file:
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artical_file.write(md)
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except Exception:
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print("[----] 处理URL异常：{}".format(article_href))
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self.url_num += 1
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except Exception:
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pass
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def muti_spider(self, thread_num):
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while True:
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if self.TaskQueue.getUnVisitedListLength() < 1:
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break
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thread_list = []
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for i in range(thread_num):
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th = threading.Thread(target=self.spider)
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thread_list.append(th)
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for th in thread_list:
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th.start()
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def run(username: str = "ds19991999", thread_num: int = 10, article__folder_name: str = "articles"):
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if not os.path.exists(article__folder_name):
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os.makedirs(article__folder_name)
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csdn = CSDN(username,article__folder_name)
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csdn.start()
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csdn.write_readme()
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csdn.muti_spider(thread_num)
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if __name__ == "__main__":
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run("ds19991999", 10, "articles")
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62
README.md
62
README.md
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@ -1,59 +1,25 @@
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# CSDN 爬虫脚本
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# CSDN 爬虫
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主要功能：爬取 `csdn` 博客指定用户的所有博文并转换为 `markdown` 格式保存到本地。
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> 主要功能：爬取 csdn 博客指定用户的所有博文并转换为 markdown 格式保存到本地。
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## 一、运行环境
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需要安装`WebDriver`驱动，https://chromedriver.chromium.org/downloads ，下载与本地对应的`chrome`驱动后，将其添加至环境变量`$PATH`
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```shell
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python3
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## 下载脚本
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```
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git clone https://github.com/ds19991999/csdn-spider.git
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cd csdn-spider
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python3 -m pip install -r requirements.txt
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```
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## 二、获取脚本
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## 爬取用户全部博文
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```python
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#!/usr/bin/env python
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# coding: utf-8
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```shell
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git clone https://github.com/ds19991999/csdn-spider.git
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if __name__ == "__main__":
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import CSDN
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CSDN.run("ds19991999")
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```
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## 三、用法
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### 1.获取cookie
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登录 `csdn` 账号，进入：https://blog.csdn.net ，按 `F12` 调试网页，复制所有的 `Request Headers`，保存到`cookie.txt`文件中
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### 2.添加需要爬取的 `csdn` 用户
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在`username.txt`中添加用户名，一行一个
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### 3.运行脚本
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```shell
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python3 csdn.py
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```
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## 四、效果
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**运行过程**
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**文章列表建立**：`./articles/username/README.md`
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**爬取的博文**：`./articles/username/`
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**博文转换效果**：
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## 五、LICENSE
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## LICENSE
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<a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-nc-sa/4.0/88x31.png" /></a>
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210
csdn.py
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csdn.py
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@ -1,210 +0,0 @@
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#!/usr/bin/env python
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# coding: utf-8
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import os, time, re
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import requests
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import threading
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from bs4 import BeautifulSoup, Comment
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from selenium import webdriver
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from tomd import Tomd
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def result_file(folder_name, file_name):
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folder = os.path.join(os.path.dirname(os.path.realpath(__file__)), "articles", folder_name)
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if not os.path.exists(folder):
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os.makedirs(folder)
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path = os.path.join(folder, file_name)
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file = open(path,"w")
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file.close()
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else:
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path = os.path.join(folder, file_name)
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return path
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def get_headers(cookie_path:str):
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cookies = {}
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with open(cookie_path, "r", encoding="utf-8") as f:
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cookie_list = f.readlines()
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for line in cookie_list:
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cookie = line.split(":")
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cookies[cookie[0]] = str(cookie[1]).strip()
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return cookies
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def delete_ele(soup:BeautifulSoup, tags:list):
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for ele in tags:
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for useless_tag in soup.select(ele):
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useless_tag.decompose()
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def delete_ele_attr(soup:BeautifulSoup, attrs:list):
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for attr in attrs:
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for useless_attr in soup.find_all():
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del useless_attr[attr]
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def delete_blank_ele(soup:BeautifulSoup, eles_except:list):
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for useless_attr in soup.find_all():
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try:
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if useless_attr.name not in eles_except and useless_attr.text == "":
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useless_attr.decompose()
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except Exception:
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pass
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class TaskQueue(object):
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def __init__(self):
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self.VisitedList = []
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self.UnVisitedList = []
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def getVisitedList(self):
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return self.VisitedList
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def getUnVisitedList(self):
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return self.UnVisitedList
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def InsertVisitedList(self, url):
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if url not in self.VisitedList:
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self.VisitedList.append(url)
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def InsertUnVisitedList(self, url):
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if url not in self.UnVisitedList:
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self.UnVisitedList.append(url)
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def RemoveVisitedList(self, url):
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self.VisitedList.remove(url)
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def PopUnVisitedList(self,index=0):
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url = ""
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if index and self.UnVisitedList:
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url = self.UnVisitedList[index]
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del self.UnVisitedList[:index]
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elif self.UnVisitedList:
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url = self.UnVisitedList.pop()
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return url
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def getUnVisitedListLength(self):
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return len(self.UnVisitedList)
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class Article(object):
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def __init__(self):
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self.options = webdriver.ChromeOptions()
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self.options.add_experimental_option('excludeSwitches', ['enable-logging'])
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self.options.add_argument('headless')
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self.browser = webdriver.Chrome(options=self.options)
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# 设置全局智能等待时间
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self.browser.implicitly_wait(30)
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def get_content(self, url):
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self.browser.get(url)
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try:
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self.browser.find_element_by_xpath('//a[@class="btn-readmore"]').click()
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except Exception:
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pass
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content = self.browser.find_element_by_xpath('//div[@id="content_views"]').get_attribute("innerHTML")
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return content
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def get_md(self, url):
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"""
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转换为markdown格式
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"""
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content = self.get_content(url)
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soup = BeautifulSoup(content, 'lxml')
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# 删除注释
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for useless_tag in soup(text=lambda text: isinstance(text, Comment)):
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useless_tag.extract()
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# 删除无用标签
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tags = ["svg", "ul", ".hljs-button.signin"]
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delete_ele(soup, tags)
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# 删除标签属性
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attrs = ["class", "name", "id", "onclick", "style", "data-token", "rel"]
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delete_ele_attr(soup,attrs)
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# 删除空白标签
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eles_except = ["img", "br", "hr"]
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delete_blank_ele(soup, eles_except)
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# 转换为markdown
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md = Tomd(str(soup)).markdown
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return md
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class CSDN(object):
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def __init__(self, cookie_path):
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self.headers = get_headers(cookie_path)
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self.TaskQueue = TaskQueue()
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def get_articles(self, username:str):
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"""获取文章标题和链接"""
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num = 0
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while True:
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num += 1
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url = u'https://blog.csdn.net/' + username + '/article/list/' + str(num)
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response = requests.get(url=url, headers=self.headers)
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html = response.text
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soup = BeautifulSoup(html, "html.parser")
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articles = soup.find_all('div', attrs={"class":"article-item-box csdn-tracking-statistics"})
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if len(articles) > 0:
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for article in articles:
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article_title = article.a.text.strip().replace(' ','：')
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article_href = article.a['href']
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yield article_title,article_href
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else:
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break
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def write_articals(self, username:str):
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"""将博文写入本地"""
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print("[++] 正在爬取 {} 的博文 ......".format(username))
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artical = Article()
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reademe_path = result_file(username,file_name="README.md")
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with open(reademe_path,'w', encoding='utf-8') as reademe_file:
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i = 1
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readme_head = "# " + username + " 的博文\n"
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reademe_file.write(readme_head)
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for article_title,article_href in self.get_articles(username):
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print("[++++] {}. 正在处理URL：{}".format(str(i), article_href))
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text = str(i) + '. [' + article_title + ']('+ article_href +')\n'
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reademe_file.write(text)
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file_name = str(i) + "." + re.sub(r'[\/:：*?"<>|]','-', article_title) + ".md"
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artical_path = result_file(folder_name=username, file_name=file_name)
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try:
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md_content = artical.get_md(article_href)
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md_head = "# " + str(i) + "." + article_title + "\n"
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md = md_head + md_content
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with open(artical_path, "w", encoding="utf-8") as artical_file:
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artical_file.write(md)
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except Exception:
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print("[----] {}. 处理URL异常：{}".format(str(i), article_href))
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i += 1
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# time.sleep(2)
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def spider(self):
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"""将爬取到的文章保存到本地"""
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while True:
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if self.TaskQueue.getUnVisitedListLength():
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username = self.TaskQueue.PopUnVisitedList()
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self.write_articals(username)
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def check_user(self, user_path:str):
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with open(user_path, 'r', encoding='utf-8') as f:
|
||||
users = f.readlines()
|
||||
for user in users:
|
||||
self.TaskQueue.InsertUnVisitedList(user.strip())
|
||||
|
||||
def run(self, user_path):
|
||||
UserThread = threading.Thread(target=self.check_user, args=(user_path,))
|
||||
SpiderThread = threading.Thread(target=self.spider, args=())
|
||||
UserThread.start()
|
||||
SpiderThread.start()
|
||||
UserThread.join()
|
||||
SpiderThread.join()
|
||||
|
||||
|
||||
def main():
|
||||
user_path = 'username.txt'
|
||||
csdn = CSDN('cookie.txt')
|
||||
csdn.run(user_path)
|
||||
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
||||
|
|
@ -1,3 +1,2 @@
|
|||
bs4==0.0.1
|
||||
selenium==3.141.0
|
||||
requests==2.22.0
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
#!/usr/bin/env python
|
||||
# coding: utf-8
|
||||
|
||||
if __name__ == "__main__":
|
||||
import CSDN
|
||||
CSDN.run("ds19991999")
|
||||
|
|
@ -1 +0,0 @@
|
|||
ds19991999
|
||||
Loading…
Reference in New Issue