mirror of
https://github.com/wassname/arXiv_abstract_bot.git
synced 2026-06-27 18:03:34 +08:00
Sreenivas V Rao
99 lines
3.1 KiB
Python
99 lines
3.1 KiB
Python
import praw
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import requests
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import bs4
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import html2text
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import time, os
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import bmemcached
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def get_bot():
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PRAW_CLIENT_ID = os.environ.get('PRAW_CLIENT_ID')
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PRAW_CLIENT_SECRET = os.environ.get('PRAW_CLIENT_SECRET')
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PRAW_PASSWORD = os.environ.get('PRAW_PASSWORD')
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PRAW_USERNAME = os.environ.get('PRAW_USERNAME')
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PRAW_USERAGENT = os.environ.get('PRAW_USERAGENT')
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print PRAW_USERAGENT, PRAW_CLIENT_SECRET, PRAW_CLIENT_ID, PRAW_PASSWORD, PRAW_USERNAME
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return praw.Reddit(
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username=PRAW_USERNAME,
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password=PRAW_PASSWORD,
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client_id=PRAW_CLIENT_ID,
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client_secret=PRAW_CLIENT_SECRET,
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user_agent=PRAW_USERAGENT
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)
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r = get_bot()
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subreddit = r.subreddit('pythonforengineers')
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# alreadydone = set()
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def scrape_arxiv(url):
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r = requests.get(url)
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soup = bs4.BeautifulSoup(r.text)
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abstract = soup.select('.abstract')[0]
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abstract = html2text.html2text(abstract.decode()).replace('\n', ' ')
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authors = soup.select('.authors')[0]
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authors = html2text.html2text(authors.decode()).replace('\n', ' ')
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authors = authors.replace('(/', '(http://arxiv.org/')
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title = soup.select('.title')[0]
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title = html2text.html2text(title.decode()).replace('\n', ' ')[2:]
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abs_link = u'[Landing page]({})'.format(url)
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pdf_url = url.replace('/abs/', '/pdf/')
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pdf_link = u'[PDF link]({})'.format(pdf_url)
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links = u'{} {}'.format(pdf_link, abs_link)
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response = '\n\n'.join([title, authors, abstract, links])
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return response
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def comment(cache):
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print(time.asctime(), "searching")
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try:
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all_posts = subreddit.new(limit=100)
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for post in all_posts:
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if 'arxiv.org' in post.url:
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if cache.get(post.id) is None:
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print "Parsed this post already: %s"%(post.url)
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continue
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for comment in post.comments:
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if str(comment.author) == 'arxiv_abstract_bot':
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break
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else:
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landing_url = post.url
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if '.pdf' in landing_url:
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landing_url = post.url.replace('.pdf', '')
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landing_url = landing_url.replace('/pdf/', '/abs/')
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response = scrape_arxiv(landing_url)
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post.reply(response)
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cache.set(post.id, 'T')
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print "Parsed post: %s"%(post.url)
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print(landing_url, response)
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time.sleep(10)
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except Exception as error:
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print(error)
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def get_memcache_client():
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# Store IDs of comments that the bot has already replied to.
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# Read local cache by default
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MEMCACHEDCLOUD_SERVERS = os.environ.get('MEMCACHEDCLOUD_SERVERS')
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MEMCACHEDCLOUD_USERNAME = os.environ.get('MEMCACHEDCLOUD_USERNAME')
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MEMCACHEDCLOUD_PASSWORD = os.environ.get('MEMCACHEDCLOUD_PASSWORD')
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client = bmemcached.Client((MEMCACHEDCLOUD_SERVERS,), MEMCACHEDCLOUD_USERNAME,
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MEMCACHEDCLOUD_PASSWORD)
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return client
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if __name__ == "__main__":
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cache = get_memcache_client()
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while True:
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comment(cache)
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time.sleep(30)
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