mirror of https://github.com/searx/searx
78 lines
2.2 KiB
Python
78 lines
2.2 KiB
Python
import json
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import re
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import unicodedata
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from searx.data import CURRENCIES # NOQA
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categories = []
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url = 'https://duckduckgo.com/js/spice/currency/1/{0}/{1}'
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weight = 100
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parser_re = re.compile('.*?(\\d+(?:\\.\\d+)?) ([^.0-9]+) (?:in|to) ([^.0-9]+)', re.I)
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def normalize_name(name):
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name = name.lower().replace('-', ' ').rstrip('s')
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name = re.sub(' +', ' ', name)
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return unicodedata.normalize('NFKD', name).lower()
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def name_to_iso4217(name):
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global CURRENCIES
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name = normalize_name(name)
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currency = CURRENCIES['names'].get(name, [name])
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return currency[0]
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def iso4217_to_name(iso4217, language):
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global CURRENCIES
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return CURRENCIES['iso4217'].get(iso4217, {}).get(language, iso4217)
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def request(query, params):
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m = parser_re.match(query)
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if not m:
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# wrong query
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return params
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amount, from_currency, to_currency = m.groups()
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amount = float(amount)
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from_currency = name_to_iso4217(from_currency.strip())
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to_currency = name_to_iso4217(to_currency.strip())
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params['url'] = url.format(from_currency, to_currency)
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params['amount'] = amount
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params['from'] = from_currency
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params['to'] = to_currency
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params['from_name'] = iso4217_to_name(from_currency, 'en')
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params['to_name'] = iso4217_to_name(to_currency, 'en')
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return params
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def response(resp):
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"""remove first and last lines to get only json"""
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json_resp = resp.text[resp.text.find('\n') + 1:resp.text.rfind('\n') - 2]
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results = []
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try:
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conversion_rate = float(json.loads(json_resp)['conversion']['converted-amount'])
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except:
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return results
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answer = '{0} {1} = {2} {3}, 1 {1} ({5}) = {4} {3} ({6})'.format(
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resp.search_params['amount'],
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resp.search_params['from'],
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resp.search_params['amount'] * conversion_rate,
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resp.search_params['to'],
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conversion_rate,
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resp.search_params['from_name'],
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resp.search_params['to_name'],
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)
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url = 'https://duckduckgo.com/js/spice/currency/1/{0}/{1}'.format(
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resp.search_params['from'].upper(), resp.search_params['to'])
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results.append({'answer': answer, 'url': url})
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return results
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