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main.py
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#############################
# CopyRight ~~~~~~ ##########
# Author: allenmirac ########
# Date: 2023-06-18 ##########
#############################
import os
import sys
import shutil
from os.path import join, exists
import urllib.request
import requests
import httpx
import argparse
import glob
from bs4 import BeautifulSoup, NavigableString
from utils import Parser
import time as tm
import re
from download_img_queue import Download_img_queue
from queue import Queue
# 使用argparse库创建了一个命令行参数解析器，并定义了多个命令行参数
parser = argparse.ArgumentParser('CSDN Blog Exporter: To Markdown or To PDF')
group = parser.add_mutually_exclusive_group()
group.add_argument('--category_url', type=str,
help='CSDN Category Url, e.g., https://blog.csdn.net/m0_67623521/category_11879868.html')
group.add_argument('--article_url', type=str,
help='CSDN Article Url, e.g., https://blog.csdn.net/m0_67623521/article/details/129597894')
parser.add_argument('--start_page', type=int, default=1,
help='Start Page of CSDN Category')
parser.add_argument('--page_num', type=int, default=100,
help='Page Number of CSDN Category.'
' If you set this to a large number, all articles in all pages of this category will be downloaded')
parser.add_argument('--markdown_dir', type=str, default='markdown',
help='Markdown Directory')
parser.add_argument('--pdf_dir', type=str, default='pdf',
help='PDF Directory')
# parser.add_argument('--figure_dir', type=str, default='figures',
# help='Figures Directory')
parser.add_argument('--with_title', action='store_true')
parser.add_argument('--to_pdf', action='store_true')
parser.add_argument('--rm_cache', action='store_true',
help='remove cached file')
parser.add_argument('--is_win',
choices=[1, 0], default=0, type=int,
help='platform: windows-1, Linux-0')
parser.add_argument('--combine_together', action='store_true',
help='Combine all markdown file in markdown_dir to a single file.'
' And if to_pdf, the single file will be converted pdf format')
args = parser.parse_args() # 保存命令行参数
# 图片下载队列
download_img_queue = Queue()
num_workers=5
img_queue_downloader = Download_img_queue(download_img_queue, True, num_workers)
def html2md(url, md_file, with_title=False, is_win=True):
response = httpx.get(url)
soup = BeautifulSoup(response.content, 'html.parser', from_encoding="utf-8")
title = soup.find_all('h1', {'class': 'title-article'})[0].string
title = '_'.join(title.replace('*', '').strip().split()) # 使用下划线连接单词
category = ''
if soup.find_all('span', {'class': 'tit'}): # 文章归类
category = soup.find_all('span', {'class': 'tit'})[0].string
time = soup.find_all('span', {'class': 'time'})[0].string
match = re.search(r'\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}', time)
time = match.group()
html = ""
for child in soup.find_all('svg'):
child.extract()
if with_title:
for c in soup.find_all('div', {'class': 'article-title-box'}):
html += str(c)
for c in soup.find_all('div', {'id': 'content_views'}):
html += str(c)
global img_queue_downloader
parser = Parser(html, title, img_queue_downloader, is_win)
# print(md_file)
# tm.sleep(10)
with open(md_file, 'w', encoding="utf-8") as f:
f.write('---\n')
f.write('title: ' + title + '\n')
f.write('data: ' + time + '\n')
if category != '':
f.write('tags: ' + category + '\n')
f.write('---\n')
f.write('\n'+ '<meta name="referrer" content="no-referrer" />'+'\n')
with open(md_file, 'a', encoding="utf-8") as f:
f.write('{}\n'.format(''.join(parser.outputs)))
def generate_pdf(input_md_file, pdf_dir, is_win=True):
if not exists(pdf_dir):
os.makedirs(pdf_dir)
md_name = os.path.basename(input_md_file)
pdf_name = md_name.replace('.md', '.pdf')
pdf_file = join(pdf_dir, pdf_name)
if is_win:
cmd = ['pandoc',
'--toc',
'--pdf-engine=xelatex',
'-V mainfont="Source Code Pro"',
'-V monofont="Source Code Pro"',
'-V documentclass="ctexbook"',
'-V geometry:"top=2cm, bottom=1cm, left=1.5cm, right=1.5cm"',
'-V pagestyle=plain',
'-V fontsize=11pt',
'-V colorlinks=blue',
'-s {}'.format(input_md_file),
'-o {}'.format(pdf_file),
]
else:
cmd = ["pandoc",
"--toc",
"--pdf-engine=xelatex",
"-V mainfont='Source Code Pro'",
"-V monofont='Source Code Pro'",
"-V documentclass='ctexart'",
"-V geometry:'top=2cm, bottom=1cm, left=1.5cm, right=1.5cm'",
"-V pagestyle=plain",
"-V fontsize=11pt",
"-V colorlinks=blue",
"-s {}".format(input_md_file),
"-o {}".format(pdf_file),
]
cmd = ' '.join(cmd)
print('Generate PDF File: {}'.format(pdf_file))
os.system(cmd)
def get_category_article_info(soup):
url = soup.find_all('a')[0].attrs['href']
h2_tag = soup.find_all('h2', {'class': 'title'})[0]
for child in h2_tag.children:
if isinstance(child, NavigableString):
title = '_'.join(child.replace('*', '').strip().split())
break
return url, title
def download_csdn_category_url(category_url, md_dir, start_page=1, page_num=100, pdf_dir='pdf', to_pdf=False, is_win=True):
"""
如果想下载某个 category 下的所有页面, 那么 page_num 设置大一些
"""
if not exists(md_dir):
os.makedirs(md_dir)
article_url = []
article_title = []
for page in range(start_page, page_num + 1):
suffix = '.html' if page == 1 else '_{}.html'.format(page)
category_url_new = category_url.rstrip('.html') + suffix
print('Getting Response From {}'.format(category_url_new))
response = httpx.get(category_url_new)
soup = BeautifulSoup(response.content, 'html.parser', from_encoding="utf-8")
article_list = soup.find_all('ul', {'class': 'column_article_list'})[0]
p = article_list.find_all('p')
if p and p[0].string == '空空如也':
print('No Content in {}, I Will Skip It!'.format(category_url_new))
break
for child in article_list.children:
# if child.name == 'div': # and child.attrs['class'] == 'pagination-box': print(child)
if child.name == 'li':
url, title = get_category_article_info(child)
title = re.compile(u"([^\u4e00-\u9fa5\u0030-\u0039\u0041-\u005a\u0061-\u007a])").sub('', title)
article_url.append(url)
article_title.append(title)
for idx, (url, title) in enumerate(zip(article_url, article_title), 1):
md_file = join(md_dir, title + '.md')
print('BlogNum: {}, Exporting Markdown File To {}'.format(idx, md_file))
if not exists(md_file):
html2md(url, md_file)
if to_pdf:
generate_pdf(md_file, pdf_dir, is_win)
def download_csdn_single_page(details_url, md_dir, with_title=True, pdf_dir='pdf', to_pdf=False, is_win=True):
print(md_dir)
if not exists(md_dir):
os.makedirs(md_dir)
response = httpx.get(details_url)
soup = BeautifulSoup(response.content, 'html.parser', from_encoding="utf-8")
title = soup.find_all('h1', {'class': 'title-article'})[0].string ## 使用 html 的 title 作为 md 文件名
title = '_'.join(title.replace('*', '').strip().split())
title = title.replace('/',"或")
# print(title)
md_file = join(md_dir, title + '.md')
print('Export Markdown File To {}'.format(md_file))
html2md(details_url, md_file, with_title=with_title, is_win=is_win)
if to_pdf:
generate_pdf(md_file, pdf_dir, is_win)
if __name__ == '__main__':
time_start = tm.time()
if not args.category_url and not args.article_url:
raise Exception('Option category_url or article_url is not specified!')
if exists(args.markdown_dir) and args.rm_cache:
shutil.rmtree(args.markdown_dir)
if exists('./figures') and args.rm_cache:
shutil.rmtree('./figures')
if exists(args.pdf_dir) and args.rm_cache:
shutil.rmtree(args.pdf_dir)
if args.category_url:
download_csdn_category_url(args.category_url,
args.markdown_dir,
start_page=args.start_page,
page_num=args.page_num)
# pdf_dir=args.pdf_dir,
# to_pdf=args.to_pdf)
# download_csdn_category_url(args.category_url,
# args.markdown_dir,
# start_page=args.start_page,
# page_num=args.page_num,
# pdf_dir=args.pdf_dir,
# to_pdf=args.to_pdf)
else:
download_csdn_single_page(args.article_url,
args.markdown_dir,
with_title=args.with_title)
# pdf_dir=args.pdf_dir,
# to_pdf=args.to_pdf)
# download_csdn_single_page(args.article_url,
# args.markdown_dir,
# with_title=args.with_title,
# pdf_dir=args.pdf_dir,
# to_pdf=args.to_pdf)
is_win = args.is_win == "1"
if args.combine_together:
source_files = join(args.markdown_dir, '*.md')
md_file = 'my_together_all_file.md'
if is_win:
cmd_line = f"type {source_files} > {md_file}"
else:
cmd_line = 'cat {} > {}'.format(source_files, md_file)
os.system(cmd_line)
if args.to_pdf:
generate_pdf(md_file, args.pdf_dir, is_win)
# 启用多线程下载文件
print("开始多线程下载文件.....")
# print("img_queue_downloader.task_queue: ") # 不能取消注释，否则队列里面的东西会全部拿出来
# while not img_queue_downloader.task_queue.empty():
# item = img_queue_downloader.task_queue.get()
# print(item)
img_queue_downloader.start()
img_queue_downloader.task_queue.join()
img_queue_downloader.stop()
print("下载文件结束!!!")
time_end = tm.time()
print("Time consume: ", time_end-time_start)