91 lines
2.5 KiB
Python
91 lines
2.5 KiB
Python
import json
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import requests
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import urllib.parse as urlparse
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DDG_BANGS = 'https://duckduckgo.com/bang.js'
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def gen_bangs_json(bangs_file: str) -> None:
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"""Generates a json file from the DDG bangs list
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Args:
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bangs_file: The str path to the new DDG bangs json file
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Returns:
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None
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"""
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try:
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# Request full list from DDG
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r = requests.get(DDG_BANGS)
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r.raise_for_status()
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except requests.exceptions.HTTPError as err:
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raise SystemExit(err)
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# Convert to json
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data = json.loads(r.text)
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# Set up a json object (with better formatting) for all available bangs
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bangs_data = {}
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for row in data:
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bang_command = '!' + row['t']
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bangs_data[bang_command] = {
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'url': row['u'].replace('{{{s}}}', '{}'),
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'suggestion': bang_command + ' (' + row['s'] + ')'
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}
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json.dump(bangs_data, open(bangs_file, 'w'))
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print('* Finished creating ddg bangs json')
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def resolve_bang(query: str, bangs_dict: dict) -> str:
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"""Transform's a user's query to a bang search, if an operator is found
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Args:
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query: The search query
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bangs_dict: The dict of available bang operators, with corresponding
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format string search URLs
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(i.e. "!w": "https://en.wikipedia.org...?search={}")
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Returns:
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str: A formatted redirect for a bang search, or an empty str if there
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wasn't a match or didn't contain a bang operator
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"""
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#if ! not in query simply return (speed up processing)
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if '!' not in query:
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return ''
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split_query = query.strip().split(' ')
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# look for operator in query if one is found, list operator should be of
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# length 1, operator should not be case-sensitive here to remove it later
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operator = [
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word
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for word in split_query
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if word.lower() in bangs_dict
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]
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if len(operator) == 1:
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# get operator
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operator = operator[0]
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# removes operator from query
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split_query.remove(operator)
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# rebuild the query string
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bang_query = ' '.join(split_query).strip()
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# Check if operator is a key in bangs and get bang if exists
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bang = bangs_dict.get(operator.lower(), None)
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if bang:
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bang_url = bang['url']
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if bang_query:
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return bang_url.replace('{}', bang_query, 1)
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else:
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parsed_url = urlparse.urlparse(bang_url)
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return f'{parsed_url.scheme}://{parsed_url.netloc}'
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return ''
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