post.py

from ConfigParser import SafeConfigParser
import HTMLParser
import logging
import os
import praw
import re
import sys
import time


# Load config file
containing_dir = os.path.abspath(os.path.dirname(sys.argv[0]))
cfg_file = SafeConfigParser()
path_to_cfg = os.path.join(containing_dir, 'config.cfg')
cfg_file.read(path_to_cfg)
username = cfg_file.get('reddit', 'username')
password = cfg_file.get('reddit', 'password')
subreddit = cfg_file.get('reddit', 'subreddit')
multiprocess = cfg_file.get('reddit', 'multiprocess')
start = cfg_file.get('post', 'start')
end = cfg_file.get('post', 'end')
text = cfg_file.get('post', 'text')
name = cfg_file.get('post', 'name')
msg_title = cfg_file.get('post', 'msg_title')
message = cfg_file.get('post', 'message')

# Configure logging
logging.basicConfig(level=logging.INFO, filename='post.log')
requests_log = logging.getLogger("requests")
requests_log.setLevel(logging.WARNING)

def main():
    month = time.strftime('%B')
    title = month + ' Confirmed Trade Thread'
    
    logging.info('Logging in as /u/' + username)
    if multiprocess == 'true':
        from praw.handlers import MultiprocessHandler
        handler = MultiprocessHandler()
        r = praw.Reddit(user_agent=username, handler=handler)
    else:
        r = praw.Reddit(user_agent=username)
    r.login(username, password)

    sub = r.get_subreddit(subreddit)
    submission = r.submit(subreddit, title, text=text)
    
    # Get Sidebar Content and Sanitize it
    current_sidebar = sub.get_settings()['description']
    current_sidebar = HTMLParser.HTMLParser().unescape(current_sidebar)

    # Regex work
    replace_pattern = re.compile('%s.*?%s' % (re.escape(start), re.escape(end)),
                                              re.IGNORECASE | re.DOTALL | re.UNICODE)
    new_sidebar = re.sub(replace_pattern,
                        '%s\n%s\n%s' % (start,
                                        '[' + name + '](http://redd.it/' + submission.id + ')',
                                        end),
                        current_sidebar)
    
    # Update the Sidebar
    sub.update_settings(description=new_sidebar)

    # Update link ID in config for flair script
    cfg_file.set('trade', 'link_id', submission.id)
    cfg_file.write(open(path_to_cfg, 'w'))

    # Notify Moderators
    r.send_message('/r/' + subreddit, msg_title, message)

if __name__ == '__main__':
    main()