From a18760b322ba0006672b3d8f09362b407b39b4c1 Mon Sep 17 00:00:00 2001 From: Markus Heiser Date: Thu, 28 May 2020 19:24:03 +0200 Subject: [PATCH] [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 --- searx/engines/gigablast.py | 127 +++++++++++++++++-------------------- 1 file changed, 59 insertions(+), 68 deletions(-) diff --git a/searx/engines/gigablast.py b/searx/engines/gigablast.py index a71dd1161..37221c556 100644 --- a/searx/engines/gigablast.py +++ b/searx/engines/gigablast.py @@ -9,14 +9,11 @@ @stable yes @parse url, title, content """ +# pylint: disable=missing-function-docstring, invalid-name -import random -from json import loads from time import time -from lxml.html import fromstring -from searx.poolrequests import get +from json import loads from searx.url_utils import urlencode -from searx.utils import eval_xpath # engine dependent config categories = ['general'] @@ -26,83 +23,77 @@ language_support = True safesearch = True # search-url + base_url = 'https://gigablast.com/' -search_string = 'search?{query}'\ - '&n={number_of_results}'\ - '&c=main'\ - '&s={offset}'\ - '&format=json'\ - '&langcountry={lang}'\ - '&ff={safesearch}'\ - '&rand={rxikd}' -# specific xpath variables -results_xpath = '//response//result' -url_xpath = './/url' -title_xpath = './/title' -content_xpath = './/sum' - -extra_param = '' # gigablast requires a random extra parameter -# which can be extracted from the source code of the search page - - -def parse_extra_param(text): - global extra_param - param_lines = [x for x in text.splitlines() if x.startswith('var url=') or x.startswith('url=url+')] - extra_param = '' - for l in param_lines: - extra_param += l.split("'")[1] - extra_param = extra_param.split('&')[-1] - - -def init(engine_settings=None): - parse_extra_param(get('http://gigablast.com/search?c=main&qlangcountry=en-us&q=south&s=10').text) - # do search-request -def request(query, params): - offset = (params['pageno'] - 1) * number_of_results +def request(query, params): # pylint: disable=unused-argument - if params['language'] == 'all': - language = 'xx' - else: - language = params['language'].replace('-', '_').lower() - if language.split('-')[0] != 'zh': - language = language.split('-')[0] + # see API http://www.gigablast.com/api.html#/search + # Take into account, that the API has some quirks .. + + query_args = dict( + c = 'main' + , n = number_of_results + , format = 'json' + , q = query + # The gigablast HTTP client sends a random number and a nsga argument + # (the values don't seem to matter) + , rand = int(time() * 1000) + , nsga = int(time() * 1000) + ) + + page_no = (params['pageno'] - 1) + if page_no: + # API quirk; adds +2 to the number_of_results + offset = (params['pageno'] - 1) * number_of_results + query_args['s'] = offset + + if params['language'] and params['language'] != 'all': + query_args['qlangcountry'] = params['language'] + query_args['qlang'] = params['language'].split('-')[0] if params['safesearch'] >= 1: - safesearch = 1 - else: - safesearch = 0 + query_args['ff'] = 1 - # rxieu is some kind of hash from the search query, but accepts random atm - search_path = search_string.format(query=urlencode({'q': query}), - offset=offset, - number_of_results=number_of_results, - lang=language, - rxikd=int(time() * 1000), - safesearch=safesearch) - - params['url'] = base_url + search_path + '&' + extra_param + search_url = 'search?' + urlencode(query_args) + params['url'] = base_url + search_url return params - # get response from search-request def response(resp): results = [] - # parse results - try: - response_json = loads(resp.text) - except: - parse_extra_param(resp.text) - raise Exception('extra param expired, please reload') - + response_json = loads(resp.text) for result in response_json['results']: - # append result - results.append({'url': result['url'], - 'title': result['title'], - 'content': result['sum']}) + # see "Example JSON Output (&format=json)" + # at http://www.gigablast.com/api.html#/search + + # sort out meaningless result + + title = result.get('title') + if len(title) < 2: + continue + + url = result.get('url') + if len(url) < 9: + continue + + content = result.get('sum') + if len(content) < 5: + continue + + # extend fields + + subtitle = result.get('title') + if len(subtitle) > 3: + title += " - " + subtitle + + results.append(dict( + url = url + , title = title + , content = content + )) - # return results return results