Lalita plugin for ddg definitions

ddg.py

# -*- coding: utf8 -*-

# Copyright 2009 laliputienses
# License: GPL v3
# For further info, see LICENSE file


import json
import urllib
from twisted.web import client
from lalita import Plugin


TRANSLATION_TABLE = {}


class Define(Plugin):

    url_template = "http://api.duckduckgo.com/?q=%s&format=json&t=lalita"

    def init(self, config):
        self.register_translation(self, TRANSLATION_TABLE)
        self.register(self.events.COMMAND, self.define_command, ['define'])

    def define_command(self, user, channel, command, *keywords):
        u"Search word definition in ddg"
        keyword = " ".join(keywords)
        return self._define(user, channel, keyword)

    def _define(self, user, channel, keyword):
        d = self._api_call(keyword)
        d.addCallback(self._answer, user, channel)
        return d

    def _api_call(self, keyword):
        keyword = keyword.encode("utf8")
        keyword = urllib.quote_plus(keyword)
        url = self.url_template % (keyword,)
        self.logger.debug("Downloading %s", url)
        d = client.getPage(url)
        return d

    def _answer(self, api_response, user, channel):
        d = json.loads(api_response)
        answer = d["Definition"]
        if not answer:
            answer = "Not found"
        self.say(channel, "%s: %s", user, answer)