python-zulip-api/contrib_bots/bots/wikipedia/wikipedia.py
Abhijeet Kaur 2282000d78 bug fix: Fix wikipedia bot in case no results are found.
Incorrect Index access in wikipedia.py resulted in IndexError and
wikipedia bot to crash for few queries. This causes the bug to be fixed.
Replaced url to avoid 2 redirects and enhance performance.
Fixes: #3508.
2017-02-09 12:20:51 -08:00

79 lines
2.7 KiB
Python

from __future__ import absolute_import
from __future__ import print_function
import requests
import logging
# See readme.md for instructions on running this code.
class WikipediaHandler(object):
'''
This plugin facilitates searching Wikipedia for a
specific key term and returns the top article from the
search. It looks for messages starting with '@wikipedia'
or '@wiki'.
In this example, we write all Wikipedia searches into
the same stream that it was called from, but this code
could be adapted to write Wikipedia searches to some
kind of external issue tracker as well.
'''
def usage(self):
return '''
This plugin will allow users to directly search
Wikipedia for a specific key term and get the top
article that is returned from the search. Users
should preface searches with "@wikipedia" or
"@wiki".
'''
def triage_message(self, message, client):
original_content = message['content']
# This next line of code is defensive, as we
# never want to get into an infinite loop of posting Wikipedia
# searches for own Wikipedia searches!
if message['sender_full_name'] == 'wikipedia-bot':
return False
is_wikipedia = (original_content.startswith('@wiki') or
original_content.startswith('@wikipedia'))
return is_wikipedia
def handle_message(self, message, client, state_handler):
query = message['content']
for prefix in ['@wikipedia', '@wiki']:
if query.startswith(prefix):
query = query[len(prefix)+1:]
break
query_wiki_link = ('https://en.wikipedia.org/w/api.php?action=query&'
'list=search&srsearch=%s&format=json' % (query,))
try:
data = requests.get(query_wiki_link)
except requests.exceptions.RequestException:
logging.error('broken link')
return
if data.status_code != 200:
logging.error('unsuccessful data')
return
new_content = 'For search term "' + query
if len(data.json()['query']['search']) == 0:
new_content = 'I am sorry. The search term you provided is not found :slightly_frowning_face:'
else:
search_string = data.json()['query']['search'][0]['title'].replace(' ', '_')
url = 'https://en.wikipedia.org/wiki/' + search_string
new_content = new_content + '", ' + url
client.send_message(dict(
type=message['type'],
to=message['display_recipient'],
subject=message['subject'],
content=new_content,
))
handler_class = WikipediaHandler