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leech/leech.py
2017-11-04 00:09:09 -05:00

91 lines
2.6 KiB
Python
Executable file

#!/usr/bin/env python
import argparse
import sys
import json
import http.cookiejar
import logging
import sites
import ebook
import requests
import requests_cache
__version__ = 1
USER_AGENT = 'Leech/%s +http://davidlynch.org' % __version__
logger = logging.getLogger(__name__)
def leech(url, session, filename=None, args=None):
# we have: a page, which could be absolutely any part of a story, or not a story at all
# check a bunch of things which are completely ff.n specific, to get text from it
site, url = sites.get(url)
if not site:
raise Exception("No site handler found")
logger.info("Handler: %s (%s)", site, url)
handler = site(session, args=args)
with open('leech.json') as config_file:
config = json.load(config_file)
login = config.get('logins', {}).get(site.__name__, False)
if login:
handler.login(login)
cover_options = config.get('cover', {})
story = handler.extract(url)
if not story:
raise Exception("Couldn't extract story")
return ebook.generate_epub(story, filename, cover_options=cover_options)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.add_argument('url', help="url of a story to fetch", nargs='?')
parser.add_argument('--filename', help="output filename (the title is used if this isn't provided)")
parser.add_argument('--no-cache', dest='cache', action='store_false')
parser.add_argument('--flush', dest='flush', action='store_true')
parser.add_argument('-v', '--verbose', help="verbose output", action='store_true', dest='verbose')
parser.set_defaults(cache=True, flush=False, verbose=False)
args, extra_args = parser.parse_known_args()
if args.verbose:
logging.basicConfig(level=logging.DEBUG)
else:
logging.basicConfig(
level=logging.INFO,
format="[%(name)s] %(message)s"
)
if args.flush:
requests_cache.install_cache('leech')
requests_cache.clear()
logger.info("Flushed cache")
sys.exit()
if not args.url:
sys.exit("URL is required")
if args.cache:
session = requests_cache.CachedSession('leech', expire_after=4 * 3600)
else:
session = requests.Session()
lwp_cookiejar = http.cookiejar.LWPCookieJar()
try:
lwp_cookiejar.load('leech.cookies', ignore_discard=True)
except Exception as e:
pass
session.cookies = lwp_cookiejar
session.headers.update({
'User-agent': USER_AGENT
})
filename = leech(args.url, filename=args.filename, session=session, args=extra_args)
logger.info("File created: %s", filename)