reddit plugin for skybot

reddit.py

import locale
import re
import time
import datetime
from htmlentitydefs import name2codepoint

#Original from https://gist.github.com/1957440, by s_quark
#Changes by davidfg4

from util import hook, http

@hook.regex(r'(?i)http://(?:www\.)?(reddit.com/tb/|redd.it/)([A-Za-z0-9\-]+)')
def reddit(match):
    try:
        h = http.get_json("http://www.reddit.com/by_id/t3_" + match.group(2) + ".json")
        data = h["data"]["children"][0]["data"]
        age       = time_ago(data["created_utc"])
        title     = decode(data["title"].replace('\n',''))
        domain    = decode(data["domain"])
        author    = decode(data["author"])
        score     = data["score"]
        subreddit = decode(data["subreddit"])

        # the longest title allowed by reddit now is 300 characters, however
        # there are a few old posts with longer titles.
        if len(title) > 300:
            title = title[:297] + '...'
        ret = "%s (%s) - submitted %s by %s" % (title, domain, age, author)
        if not data["is_self"]:
            ret = ret + " to /r/%s" % (subreddit)

        ret = ret + " (%d points)" % (score)
        if data["over_18"]:
                if subreddit == "mylittlepony":
                        ret = ret + " \x034*SPOILERS*\x0f"
                else:  
                        ret = ret + " \x034*NSFW*\x0f"
        return ret
    except http.URLError, e:
        pass

def time_ago(timestamp):
    now = int(time.time())
    delta = datetime.timedelta(seconds=(now - timestamp))
    if delta.days > 0:
        return "%d days ago" % (delta.days)

    hours = delta.seconds // 3600
    if hours > 0:
        return "%d hours ago" % (hours)

    minutes = delta.seconds // 60
    if minutes > 0:
        return "%d minutes ago" % (minutes)
    else:
        return "%d seconds ago" % (delta.seconds)

#decoding stuff from https://github.com/sbp/phenny/blob/master/web.py
r_entity = re.compile(r'&([^;\s]+);')

def entity(match):
   value = match.group(1).lower()
   if value.startswith('#x'):
      return unichr(int(value[2:], 16))
   elif value.startswith('#'):
      return unichr(int(value[1:]))
   elif name2codepoint.has_key(value):
      return unichr(name2codepoint[value])
   return '[' + value + ']'

def decode(html):
   return r_entity.sub(entity, html)