说明

上一次搬家是十一年前从MSN搬到CSDN，那时候MSN博客即将关闭。
这一次是由CSDN搬到本地，改用Obsidian的Markdown管理文档。
毕竟时代不同了，咱也得与时俱进，话不多说，上代码。

技术

具体用到了以下技术：

bs4：xml解析
html2text：从html中提取文本
urllib：下载网页

代码

本代码在2021-12-18日能正常使用，考虑到网站常常改版本，未来使用时可能需要做一些调整。代码可在Python3环境运行。

# coding=utf-8

from bs4 import BeautifulSoup
import urllib.request as request
import codecs
import re
import os
import html2text

class Analyzer(object):
    def __init__(self):
        super(Analyzer, self).__init__()
    
    def get(self, url):
        headers = {'User-Agent': 'User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.118 Safari/537.36'}
        req = request.Request(url, headers=headers)
        html_doc = request.urlopen(req).read()
        return html_doc

    def getContent(self, soup):
        return soup.find('body').find('main')

class Exporter(Analyzer):
    def __init__(self):
        super(Exporter, self).__init__()

    def export(self, link, path):
        html_doc = self.get(link)
        soup = BeautifulSoup(html_doc)
        detail = self.getContent(soup)
        
        title = html2text.html2text(detail.find(class_='title-article').prettify())
        content = html2text.html2text(detail.find(class_='article_content').prettify())
        
        # 生成标签
        tags = html2text.html2text(detail.find(class_='blog-tags-box').prettify())
        tags = re.sub('[\n ]', '', tags)
        tags = re.findall(re.compile(r'[[](.*?)[]]', re.S), tags)        
        name = title.strip()
        name = re.sub('[# /]', '', name)
        date = html2text.html2text(detail.find(class_='time').prettify())
        date = date.strip()
        
        filename = os.path.join(path, f"{name}.md")
        f = codecs.open(filename, 'w', encoding='utf-8')
        
        # 生成元数据，以便后序索引
        info = f"""---
title: {name}
date: {date}
tags: {tags}
addr: {link}
---

"""     
        f.write(info)
        f.write(title)
        for tag in tags:
            f.write(f"#{tag} ")
        f.write("\n\n")
        f.write(content)
        f.close()

    def run(self, link, path):
        self.export(link, path)

class Parser(Analyzer):
    def __init__(self):
        super(Parser, self).__init__()
        self.article_list = []
        self.page = -1

    def parse(self, html_doc):
        soup = BeautifulSoup(html_doc)
        res = self.getContent(soup).find(class_="article-list").find_all(class_='article-item-box')
        i = 0
        for ele in res:
            self.article_list.append(ele.h4.a['href'])

    def getAllArticleLink(self, url):
        self.page = 10 # 我的列表只有10页
        for i in range(4, self.page + 1): # for test
            print("work page", i, len(self.article_list))
            self.parse(self.get(url + '/article/list/' + str(i)))

    def export(self, path):
        print("article count", len(self.article_list))
        for link in self.article_list:
            print("link", link)
            exporter = Exporter()
            exporter.run(link, path)

    def run(self, url, path):
        self.page = -1
        self.article_list = []
        print("getting-link")
        self.getAllArticleLink(url)
        print("now export")
        self.export(path)
        print("finished")

username = 'xxxxxx'
url = 'http://blog.csdn.net/' + username
parser = Parser()
parser.run(url, 'tmp')