Python备份博客
lyshark 人气:0鉴于有些小伙伴在寻找博客园迁移到个人博客的方案,本人针对博客园实现了一个自动备份脚本,可以快速将博客园中自己的文章备份成Markdown格式的独立文件,备份后的md文件可以直接放入到hexo博客中,快速生成自己的站点,而不需要自己逐篇文章迁移,提高了备份文章的效率。
首先第一步将博客园主题替换为codinglife
默认主题,第二步登录到自己的博客园后台,然后选择博客备份
,备份所有的随笔文章,如下所示:
备份出来以后将其命名为backup.xml
,然后新建一个main.py
脚本,以及一个blog
目录,代码实现的原理是,解析xml格式并依次提取出文档内容,然后分别保存为markdown文件。
转存文章到MD
写入备份脚本,代码如下所示,运行后即可自动转存文件到blog目录
下,当运行结束后备份也就结束了。
# powerby: LyShark # blog: www.cnblogs.com/lyshark from bs4 import BeautifulSoup import requests, os,re header = {"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) By LyShark CnblogsBlog Backup Script"} # 获取文章,并转成markdown # blog: www.lyshark.com def GetMarkDown(xml_file): con = open(xml_file, 'r', encoding='utf8').read() # 每篇文章都在 <item> 标签里 items = re.findall("<item>.*?</item>", con, re.I | re.M | re.S) ele2 = ['<title>(.+?)</title>', '<link>(.+?)</link>', '<description>(.+?)</description>'] # md_name = xml_file.split('.xml')[0] + '.md' for item in items: try: title = re.findall(ele2[0], item, re.I | re.S | re.M)[0] link = re.findall(ele2[1], item, re.I | re.S | re.M)[0] des = re.findall(ele2[2], item, re.I | re.S | re.M)[0] des = re.findall('<!\[CDATA\[(.+?)\]\]>', des, re.I | re.S | re.M)[0] # CDATA 里面放的是文章的内容 des = des.replace('~~~', "```") lines = des.split('\n') with open("./blog/" + title.replace("/","") + ".md", mode='w+', encoding='utf8') as f: f.write("---\n") f.write("title: '{}'\n".format(title.replace("##","").replace("###","").replace("-","").replace("*","").replace("<br>","").replace(":","").replace(":","").replace(" ","").replace(" ","").replace("`",""))) f.write("copyright: true\n") setdate = "2018-12-27 00:00:00" try: # 读取时间 response = requests.get(url=link, headers=header) print("读取状态: {}".format(response.status_code)) if response.status_code == 200: bs = BeautifulSoup(response.text, "html.parser") ret = bs.select('span[id="post-date"]')[0] setdate = str(ret.text) pass else: f.write("date: '2018-12-27 00:00:00'\n") except Exception: f.write("date: '2018-12-27 00:00:00'\n") pass f.write("date: '{}'\n".format(setdate)) # description检测 description_check = lines[0].replace("##","").replace("###","").replace("-","").replace("*","").replace("<br>","").replace(":","").replace(":","").replace(" ","").replace(" ","") if description_check == "": f.write("description: '{}'\n".format("该文章暂无概述")) elif description_check == "```C": f.write("description: '{}'\n".format("该文章暂无概述")) elif description_check == "```Python": f.write("description: '{}'\n".format("该文章暂无概述")) else: f.write("description: '{}'\n".format(description_check)) print("[*] 时间: {} --> 标题: {}".format(setdate, title)) f.write("tags: '{}'\n".format("tags10245")) f.write("categories: '{}'\n".format("categories10245")) f.write("---\n\n") f.write('%s' %des) f.close() except Exception: pass if __name__ == "__main__": GetMarkDown("backup.xml")
备份后的效果如下所示:
打开Markdown格式看一下,此处的标签和分类使用了一个别名,在备份下来以后,你可以逐个区域进行替换,将其替换成自己需要的分类类型即可。
转存图片到本地
接着就是继续循环将博客中所有图片备份下来,同样新建一个image文件夹,并运行如下代码实现备份。
# powerby: LyShark # blog: www.cnblogs.com/lyshark from bs4 import BeautifulSoup import requests, os,re header = {"User-Agent": "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) By LyShark CnblogsBlog Backup Script"} # 从备份XML中找到URL # blog: www.cnblogs.com/lyshark def GetURL(xml_file): blog_url = [] con = open(xml_file, 'r', encoding='utf8').read() items = re.findall("<item>.*?</item>", con, re.I | re.M | re.S) ele2 = ['<title>(.+?)</title>', '<link>(.+?)</link>', '<description>(.+?)</description>'] for item in items: title = re.findall(ele2[0], item, re.I | re.S | re.M)[0] link = re.findall(ele2[1], item, re.I | re.S | re.M)[0] print("标题: {} --> URL: {} ".format(title,link)) blog_url.append(link) return blog_url # 下载所有图片 # blog: www.lyshark.com def DownloadURLPicture(url): params = {"encode": "utf-8"} response = requests.get(url=url, params=params, headers=header) # print("网页编码方式: {} -> {}".format(response.encoding,response.apparent_encoding)) context = response.text.encode(response.encoding).decode(response.apparent_encoding, "ignore") try: bs = BeautifulSoup(context, "html.parser") ret = bs.select('div[id="cnblogs_post_body"] p img') for item in ret: try: img_src_path = item.get("src") img_src_name = img_src_path.split("/")[-1] print("[+] 下载图片: {} ".format(img_src_name)) img_download = requests.get(url=img_src_path, headers=header, stream=True) with open("./image/" + img_src_name, "wb") as fp: for chunk in img_download.iter_content(chunk_size=1024): fp.write(chunk) except Exception: print("下载图片失败: {}".format(img_src_name)) pass except Exception: pass if __name__ == "__main__": url = GetURL("backup.xml") for u in url: DownloadURLPicture(u)
备份后的效果如下:
替换文章内的图片链接地址,可以使用编辑器,启用正则批量替换。
当把博客备份下来以后你就可以把这些文章拷贝到hexo
博客_post
目录下面,然后hexo
命令快速渲染生成博客园的镜像站点,这样也算是增加双保险了。
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