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requests by BeautifulSoup
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import re | |
import sqlite3 | |
import uuid | |
import requests | |
from bs4 import BeautifulSoup | |
MAX_PAGE = 10000 | |
COOKIES = { | |
'over18': '1' | |
} | |
con = sqlite3.connect('ptt.sqlite') | |
cur = con.cursor() | |
cur.execute("create table if not exists post (id, author, title)") | |
root_url = 'https://www.ptt.cc/bbs' | |
root_page = f'{root_url}/Gossiping' | |
def get_post_urls(page): | |
page_url = f'{root_page}/index{page}.html' | |
res = requests.get(page_url, cookies=COOKIES) | |
text = res.content | |
urls = re.findall(r'/bbs/Gossiping/M[\w+\.]*.html', text.decode('utf-8')) | |
return urls | |
def save_meta_to_sql(post_id, title, author): | |
cur.execute('INSERT INTO post (id, author, title) VALUES (?, ?, ?)', [post_id, title, author]) | |
con.commit() | |
def save_content_as_file(post_id, post): | |
with open(post_id, 'w') as fd: | |
fd.write(post) | |
def parse_author_and_title(post): | |
parsed_post = BeautifulSoup(post) | |
post_meta = parsed_post.find_all(class_='article-meta-value') | |
post_meta = [meta.text for meta in post_meta] | |
author , _, title, __ = post_meta | |
return author, title | |
def save_post(text): | |
post_id = str(uuid.uuid1()) | |
author, title = parse_author_and_title(text) | |
save_content_as_file(post_id, text) | |
save_meta_to_sql(post_id, author, title) | |
def craw_post_content(post_url): | |
full_url = f'{root_url}{post_url[4:]}' | |
res = requests.get(full_url, cookies=COOKIES) | |
text = res.content | |
save_post(text.decode('utf-8')) | |
def main(): | |
for page in range(MAX_PAGE): | |
urls = get_post_urls(page) | |
for url in urls: | |
craw_post_content(url) | |
if __name__ == '__main__': | |
main() |
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