forked from zaclys/searxng
[fix] revise of the gigablast engine (WIP)
The gigablast API has changed and seems to have some quirks, this is the first revise. More work (hacks) are needed. Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
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Markus Heiser
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a18760b322
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@ -9,14 +9,11 @@
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@stable yes
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@parse url, title, content
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"""
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# pylint: disable=missing-function-docstring, invalid-name
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import random
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from json import loads
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from time import time
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from lxml.html import fromstring
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from searx.poolrequests import get
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from json import loads
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from searx.url_utils import urlencode
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from searx.utils import eval_xpath
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# engine dependent config
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categories = ['general']
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@ -26,83 +23,77 @@ language_support = True
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safesearch = True
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# search-url
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base_url = 'https://gigablast.com/'
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search_string = 'search?{query}'\
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'&n={number_of_results}'\
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'&c=main'\
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'&s={offset}'\
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'&format=json'\
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'&langcountry={lang}'\
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'&ff={safesearch}'\
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'&rand={rxikd}'
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# specific xpath variables
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results_xpath = '//response//result'
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url_xpath = './/url'
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title_xpath = './/title'
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content_xpath = './/sum'
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extra_param = '' # gigablast requires a random extra parameter
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# which can be extracted from the source code of the search page
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def parse_extra_param(text):
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global extra_param
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param_lines = [x for x in text.splitlines() if x.startswith('var url=') or x.startswith('url=url+')]
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extra_param = ''
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for l in param_lines:
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extra_param += l.split("'")[1]
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extra_param = extra_param.split('&')[-1]
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def init(engine_settings=None):
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parse_extra_param(get('http://gigablast.com/search?c=main&qlangcountry=en-us&q=south&s=10').text)
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# do search-request
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def request(query, params):
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offset = (params['pageno'] - 1) * number_of_results
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def request(query, params): # pylint: disable=unused-argument
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if params['language'] == 'all':
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language = 'xx'
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else:
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language = params['language'].replace('-', '_').lower()
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if language.split('-')[0] != 'zh':
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language = language.split('-')[0]
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# see API http://www.gigablast.com/api.html#/search
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# Take into account, that the API has some quirks ..
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query_args = dict(
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c = 'main'
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, n = number_of_results
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, format = 'json'
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, q = query
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# The gigablast HTTP client sends a random number and a nsga argument
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# (the values don't seem to matter)
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, rand = int(time() * 1000)
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, nsga = int(time() * 1000)
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)
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page_no = (params['pageno'] - 1)
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if page_no:
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# API quirk; adds +2 to the number_of_results
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offset = (params['pageno'] - 1) * number_of_results
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query_args['s'] = offset
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if params['language'] and params['language'] != 'all':
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query_args['qlangcountry'] = params['language']
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query_args['qlang'] = params['language'].split('-')[0]
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if params['safesearch'] >= 1:
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safesearch = 1
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else:
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safesearch = 0
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query_args['ff'] = 1
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# rxieu is some kind of hash from the search query, but accepts random atm
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search_path = search_string.format(query=urlencode({'q': query}),
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offset=offset,
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number_of_results=number_of_results,
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lang=language,
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rxikd=int(time() * 1000),
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safesearch=safesearch)
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params['url'] = base_url + search_path + '&' + extra_param
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search_url = 'search?' + urlencode(query_args)
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params['url'] = base_url + search_url
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return params
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# get response from search-request
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def response(resp):
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results = []
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# parse results
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try:
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response_json = loads(resp.text)
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except:
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parse_extra_param(resp.text)
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raise Exception('extra param expired, please reload')
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response_json = loads(resp.text)
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for result in response_json['results']:
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# append result
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results.append({'url': result['url'],
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'title': result['title'],
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'content': result['sum']})
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# see "Example JSON Output (&format=json)"
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# at http://www.gigablast.com/api.html#/search
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# sort out meaningless result
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title = result.get('title')
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if len(title) < 2:
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continue
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url = result.get('url')
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if len(url) < 9:
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continue
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content = result.get('sum')
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if len(content) < 5:
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continue
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# extend fields
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subtitle = result.get('title')
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if len(subtitle) > 3:
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title += " - " + subtitle
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results.append(dict(
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url = url
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, title = title
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, content = content
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))
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# return results
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return results
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