From 1c67b6aecea8d9c7276fc1d7bef585bc4118f255 Mon Sep 17 00:00:00 2001 From: Alexandre Flament Date: Sun, 6 Jun 2021 08:18:07 +0200 Subject: [PATCH] [enh] google engine: supports "default language" Same behaviour behaviour than Whoogle [1]. Only the google engine with the "Default language" choice "(all)"" is changed by this patch. When searching for a locate place, the result are in the expect language, without missing results [2]: > When a language is not specified, the language interpretation is left up to > Google to decide how the search results should be delivered. The query parameters are copied from Whoogle. With the ``all`` language: - add parameter ``source=lnt`` - don't use parameter ``lr`` - don't add a ``Accept-Language`` HTTP header. The new signature of function ``get_lang_info()`` is: lang_info = get_lang_info(params, lang_list, custom_aliases, supported_any_language) Argument ``supported_any_language`` is True for google.py and False for the other google engines. With this patch the function now returns: - query parameters: ``lang_info['params']`` - HTTP headers: ``lang_info['headers']`` - and as before this patch: - ``lang_info['subdomain']`` - ``lang_info['country']`` - ``lang_info['language']`` [1] https://github.com/benbusby/whoogle-search [2] https://github.com/benbusby/whoogle-search/releases/tag/v0.5.4 --- searx/engines/google.py | 55 ++++++++++++++++++--------------- searx/engines/google_images.py | 9 +++--- searx/engines/google_news.py | 9 +++--- searx/engines/google_scholar.py | 9 +++--- searx/engines/google_videos.py | 9 +++--- 5 files changed, 46 insertions(+), 45 deletions(-) diff --git a/searx/engines/google.py b/searx/engines/google.py index 92c9e1399..1659a9a40 100644 --- a/searx/engines/google.py +++ b/searx/engines/google.py @@ -133,11 +133,12 @@ suggestion_xpath = '//div[contains(@class, "card-section")]//a' spelling_suggestion_xpath = '//div[@class="med"]/p/a' -def get_lang_info(params, lang_list, custom_aliases): +def get_lang_info(params, lang_list, custom_aliases, supported_any_language): ret_val = {} _lang = params['language'] - if _lang.lower() == 'all': + _any_language = _lang.lower() == 'all' + if _any_language: _lang = 'en-US' language = match_language(_lang, lang_list, custom_aliases) @@ -159,31 +160,36 @@ def get_lang_info(params, lang_list, custom_aliases): # the combination (en-US, en-EN, de-DE, de-AU, fr-FR, fr-FR) lang_country = '%s-%s' % (language, country) - # Accept-Language: fr-CH, fr;q=0.8, en;q=0.6, *;q=0.5 - ret_val['Accept-Language'] = ','.join([ - lang_country, - language + ';q=0.8,', - 'en;q=0.6', - '*;q=0.5', - ]) - # subdomain ret_val['subdomain'] = 'www.' + google_domains.get(country.upper(), 'google.com') + ret_val['params'] = {} + ret_val['headers'] = {} + + if _any_language and supported_any_language: + # based on whoogle + ret_val['params']['source'] = 'lnt' + else: + # Accept-Language: fr-CH, fr;q=0.8, en;q=0.6, *;q=0.5 + ret_val['headers']['Accept-Language'] = ','.join([ + lang_country, + language + ';q=0.8,', + 'en;q=0.6', + '*;q=0.5', + ]) + + # lr parameter: + # https://developers.google.com/custom-search/docs/xml_results#lrsp + # Language Collection Values: + # https://developers.google.com/custom-search/docs/xml_results_appendices#languageCollections + ret_val['params']['lr'] = "lang_" + lang_list.get(lang_country, language) + + ret_val['params']['hl'] = lang_list.get(lang_country, language) + # hl parameter: # https://developers.google.com/custom-search/docs/xml_results#hlsp The # Interface Language: # https://developers.google.com/custom-search/docs/xml_results_appendices#interfaceLanguages - - ret_val['hl'] = lang_list.get(lang_country, language) - - # lr parameter: - # https://developers.google.com/custom-search/docs/xml_results#lrsp - # Language Collection Values: - # https://developers.google.com/custom-search/docs/xml_results_appendices#languageCollections - - ret_val['lr'] = "lang_" + lang_list.get(lang_country, language) - return ret_val def detect_google_sorry(resp): @@ -198,14 +204,13 @@ def request(query, params): lang_info = get_lang_info( # pylint: disable=undefined-variable - params, supported_languages, language_aliases + params, supported_languages, language_aliases, True ) # https://www.google.de/search?q=corona&hl=de&lr=lang_de&start=0&tbs=qdr%3Ad&safe=medium query_url = 'https://' + lang_info['subdomain'] + '/search' + "?" + urlencode({ 'q': query, - 'hl': lang_info['hl'], - 'lr': lang_info['lr'], + **lang_info['params'], 'ie': "utf8", 'oe': "utf8", 'start': offset, @@ -219,8 +224,8 @@ def request(query, params): logger.debug("query_url --> %s", query_url) params['url'] = query_url - logger.debug("HTTP header Accept-Language --> %s", lang_info['Accept-Language']) - params['headers']['Accept-Language'] = lang_info['Accept-Language'] + logger.debug("HTTP header Accept-Language --> %s", lang_info.get('Accept-Language')) + params['headers'].update(lang_info['headers']) params['headers']['Accept'] = ( 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' ) diff --git a/searx/engines/google_images.py b/searx/engines/google_images.py index 919c99c63..0f8f1c73e 100644 --- a/searx/engines/google_images.py +++ b/searx/engines/google_images.py @@ -101,14 +101,13 @@ def request(query, params): lang_info = get_lang_info( # pylint: disable=undefined-variable - params, supported_languages, language_aliases + params, supported_languages, language_aliases, False ) query_url = 'https://' + lang_info['subdomain'] + '/search' + "?" + urlencode({ 'q': query, 'tbm': "isch", - 'hl': lang_info['hl'], - 'lr': lang_info['lr'], + **lang_info['params'], 'ie': "utf8", 'oe': "utf8", 'num': 30, @@ -122,8 +121,8 @@ def request(query, params): logger.debug("query_url --> %s", query_url) params['url'] = query_url - logger.debug("HTTP header Accept-Language --> %s", lang_info['Accept-Language']) - params['headers']['Accept-Language'] = lang_info['Accept-Language'] + logger.debug("HTTP header Accept-Language --> %s", lang_info.get('Accept-Language')) + params['headers'].update(lang_info['headers']) params['headers']['Accept'] = ( 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' ) diff --git a/searx/engines/google_news.py b/searx/engines/google_news.py index 355155de8..71b6093d3 100644 --- a/searx/engines/google_news.py +++ b/searx/engines/google_news.py @@ -83,7 +83,7 @@ def request(query, params): lang_info = get_lang_info( # pylint: disable=undefined-variable - params, supported_languages, language_aliases + params, supported_languages, language_aliases, False ) # google news has only one domain @@ -102,8 +102,7 @@ def request(query, params): query_url = 'https://' + lang_info['subdomain'] + '/search' + "?" + urlencode({ 'q': query, - 'hl': lang_info['hl'], - 'lr': lang_info['lr'], + **lang_info['params'], 'ie': "utf8", 'oe': "utf8", 'gl': lang_info['country'], @@ -112,8 +111,8 @@ def request(query, params): logger.debug("query_url --> %s", query_url) params['url'] = query_url - logger.debug("HTTP header Accept-Language --> %s", lang_info['Accept-Language']) - params['headers']['Accept-Language'] = lang_info['Accept-Language'] + logger.debug("HTTP header Accept-Language --> %s", lang_info.get('Accept-Language')) + params['headers'].update(lang_info['headers']) params['headers']['Accept'] = ( 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' ) diff --git a/searx/engines/google_scholar.py b/searx/engines/google_scholar.py index a0ca70e53..fbf443e2e 100644 --- a/searx/engines/google_scholar.py +++ b/searx/engines/google_scholar.py @@ -81,15 +81,14 @@ def request(query, params): # params, {}, language_aliases - params, supported_languages, language_aliases + params, supported_languages, language_aliases, False ) # subdomain is: scholar.google.xy lang_info['subdomain'] = lang_info['subdomain'].replace("www.", "scholar.") query_url = 'https://'+ lang_info['subdomain'] + '/scholar' + "?" + urlencode({ 'q': query, - 'hl': lang_info['hl'], - 'lr': lang_info['lr'], + **lang_info['params'], 'ie': "utf8", 'oe': "utf8", 'start' : offset, @@ -100,8 +99,8 @@ def request(query, params): logger.debug("query_url --> %s", query_url) params['url'] = query_url - logger.debug("HTTP header Accept-Language --> %s", lang_info['Accept-Language']) - params['headers']['Accept-Language'] = lang_info['Accept-Language'] + logger.debug("HTTP header Accept-Language --> %s", lang_info.get('Accept-Language')) + params['headers'].update(lang_info['headers']) params['headers']['Accept'] = ( 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' ) diff --git a/searx/engines/google_videos.py b/searx/engines/google_videos.py index 3e3f5d6f1..81e0a8473 100644 --- a/searx/engines/google_videos.py +++ b/searx/engines/google_videos.py @@ -119,14 +119,13 @@ def request(query, params): lang_info = get_lang_info( # pylint: disable=undefined-variable - params, supported_languages, language_aliases + params, supported_languages, language_aliases, False ) query_url = 'https://' + lang_info['subdomain'] + '/search' + "?" + urlencode({ 'q': query, 'tbm': "vid", - 'hl': lang_info['hl'], - 'lr': lang_info['lr'], + **lang_info['params'], 'ie': "utf8", 'oe': "utf8", }) @@ -139,8 +138,8 @@ def request(query, params): logger.debug("query_url --> %s", query_url) params['url'] = query_url - logger.debug("HTTP header Accept-Language --> %s", lang_info['Accept-Language']) - params['headers']['Accept-Language'] = lang_info['Accept-Language'] + logger.debug("HTTP header Accept-Language --> %s", lang_info.get('Accept-Language')) + params['headers'].update(lang_info['headers']) params['headers']['Accept'] = ( 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' )