141 lines
4.2 KiB
Python
141 lines
4.2 KiB
Python
#!/usr/bin/env python
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# coding: utf-8
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import os, re
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import requests
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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_username, file_name, folder_name):
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folder = os.path.join(os.path.dirname(os.path.realpath(__file__)), "..", folder_name, folder_username)
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if not os.path.exists(folder):
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try:
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os.makedirs(folder)
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except Exception:
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pass
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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 CSDN(object):
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def __init__(self, username, folder_name, cookie_path):
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self.headers = get_headers(cookie_path)
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self.s = requests.Session()
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self.username = username
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self.TaskQueue = list()
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self.folder_name = folder_name
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self.url_num = 1
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def start(self):
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num = 0
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articles = [None]
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while len(articles) > 0:
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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 = self.s.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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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.append((article_title, article_href))
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def get_md(self, url):
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response = self.s.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("#mainBox > main > div.blog-content-box")
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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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print("+"*100)
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print("[++] 开始爬取 {} 的博文 ......".format(self.username))
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print("+"*100)
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reademe_path = result_file(self.username,file_name="README.md",folder_name=self.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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self.TaskQueue.reverse()
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for (article_title,article_href) in self.TaskQueue:
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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 get_all_articles(self):
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while len(self.TaskQueue) > 0:
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(article_title,article_href) = self.TaskQueue.pop()
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file_name = re.sub(r'[\/:：*?"<>|\n]','-', article_title) + ".md"
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artical_path = result_file(folder_username=self.username, file_name=file_name, folder_name=self.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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print("[++++] 正在处理URL：{}".format(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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self.url_num += 1
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def spider(username: str, cookie_path:str, folder_name: str = "blog"):
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if not os.path.exists(folder_name):
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os.makedirs(folder_name)
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csdn = CSDN(username, folder_name, cookie_path)
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csdn.start()
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csdn.write_readme()
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csdn.get_all_articles()
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