Merge pull request #1079 from pyrrh0n1c/master

Fixed the currency_convert engine.

searx/engines/currency_convert.py

     unicode = str
 
 categories = []
-url = 'https://download.finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s={query}=X'
+url = 'https://finance.google.com/finance/converter?a=1&from={0}&to={1}'
 weight = 100
 
 parser_re = re.compile(b'.*?(\\d+(?:\\.\\d+)?) ([^.0-9]+) (?:in|to) ([^.0-9]+)', re.I)
         # wrong query
         return params
 
-    ammount, from_currency, to_currency = m.groups()
-    ammount = float(ammount)
+    amount, from_currency, to_currency = m.groups()
+    amount = float(amount)
     from_currency = name_to_iso4217(from_currency.strip())
     to_currency = name_to_iso4217(to_currency.strip())
 
     q = (from_currency + to_currency).upper()
 
-    params['url'] = url.format(query=q)
-    params['ammount'] = ammount
+    params['url'] = url.format(from_currency, to_currency)
+    params['amount'] = amount
     params['from'] = from_currency
     params['to'] = to_currency
     params['from_name'] = iso4217_to_name(from_currency, 'en')
 
 def response(resp):
     results = []
+    pat = '<span class=bld>(.+) {0}</span>'.format(
+        resp.search_params['to'].upper())
+
     try:
-        _, conversion_rate, _ = resp.text.split(',', 2)
+        conversion_rate = re.findall(pat, resp.text)[0]
         conversion_rate = float(conversion_rate)
     except:
         return results
 
     answer = '{0} {1} = {2} {3}, 1 {1} ({5}) = {4} {3} ({6})'.format(
-        resp.search_params['ammount'],
+        resp.search_params['amount'],
         resp.search_params['from'],
-        resp.search_params['ammount'] * conversion_rate,
+        resp.search_params['amount'] * conversion_rate,
         resp.search_params['to'],
         conversion_rate,
         resp.search_params['from_name'],
         resp.search_params['to_name'],
     )
 
-    now_date = datetime.now().strftime('%Y%m%d')
-    url = 'https://finance.yahoo.com/currency/converter-results/{0}/{1}-{2}-to-{3}.html'  # noqa
-    url = url.format(
-        now_date,
-        resp.search_params['ammount'],
-        resp.search_params['from'].lower(),
-        resp.search_params['to'].lower()
-    )
+    url = 'https://finance.google.com/finance?q={0}{1}'.format(
+        resp.search_params['from'].upper(), resp.search_params['to'])
 
     results.append({'answer': answer, 'url': url})
 

tests/unit/engines/test_currency_convert.py

         query = b'convert 10 Pound Sterlings to United States Dollars'
         params = currency_convert.request(query, dicto)
         self.assertIn('url', params)
-        self.assertIn('finance.yahoo.com', params['url'])
+        self.assertIn('finance.google.com', params['url'])
         self.assertIn('GBP', params['url'])
         self.assertIn('USD', params['url'])
 
     def test_response(self):
         dicto = defaultdict(dict)
-        dicto['ammount'] = float(10)
+        dicto['amount'] = float(10)
         dicto['from'] = "GBP"
         dicto['to'] = "USD"
         dicto['from_name'] = "pound sterling"
         response = mock.Mock(text='a,b,c,d', search_params=dicto)
         self.assertEqual(currency_convert.response(response), [])
 
-        csv = "2,0.5,1"
-        response = mock.Mock(text=csv, search_params=dicto)
+        body = "<span class=bld>0.5 {}</span>".format(dicto['to'])
+        response = mock.Mock(text=body, search_params=dicto)
         results = currency_convert.response(response)
         self.assertEqual(type(results), list)
         self.assertEqual(len(results), 1)
         self.assertEqual(results[0]['answer'], '10.0 GBP = 5.0 USD, 1 GBP (pound sterling)' +
                          ' = 0.5 USD (United States dollar)')
-        now_date = datetime.now().strftime('%Y%m%d')
-        self.assertEqual(results[0]['url'], 'https://finance.yahoo.com/currency/converter-results/' +
-                                            now_date + '/10.0-gbp-to-usd.html')
+
+        target_url = 'https://finance.google.com/finance?q={}{}'.format(
+            dicto['from'], dicto['to'])
+        self.assertEqual(results[0]['url'], target_url)