From baec54c49295020bd925e34a705afca29d7458f3 Mon Sep 17 00:00:00 2001 From: Markus Heiser Date: Fri, 22 Jan 2021 18:49:45 +0100 Subject: [PATCH] [fix] revise of the google-news engine This revise is based on the methods developed in the revise of the google engine (see commit 410c2f9). Signed-off-by: Markus Heiser --- Makefile | 4 +- searx/engines/google.py | 17 ++- searx/engines/google_images.py | 12 +- searx/engines/google_news.py | 202 +++++++++++++++++++++++++-------- 4 files changed, 167 insertions(+), 68 deletions(-) diff --git a/Makefile b/Makefile index 9d8e3a19..350b2321 100644 --- a/Makefile +++ b/Makefile @@ -177,7 +177,9 @@ PYLINT_FILES=\ searx/testing.py \ searx/engines/gigablast.py \ searx/engines/deviantart.py \ - searx/engines/digg.py + searx/engines/digg.py \ + searx/engines/google.py \ + searx/engines/google_news.py test.pylint: pyenvinstall $(call cmd,pylint,$(PYLINT_FILES)) diff --git a/searx/engines/google.py b/searx/engines/google.py index 4198de64..fe9cd63e 100644 --- a/searx/engines/google.py +++ b/searx/engines/google.py @@ -155,6 +155,11 @@ def get_lang_country(params, lang_list, custom_aliases): return language, country, lang_country +def detect_google_sorry(resp): + resp_url = urlparse(resp.url) + if resp_url.netloc == 'sorry.google.com' or resp_url.path.startswith('/sorry'): + raise SearxEngineCaptchaException() + def request(query, params): """Google search request""" @@ -200,16 +205,10 @@ def request(query, params): def response(resp): """Get response from google's search request""" + + detect_google_sorry(resp) + results = [] - - # detect google sorry - resp_url = urlparse(resp.url) - if resp_url.netloc == 'sorry.google.com' or resp_url.path == '/sorry/IndexRedirect': - raise SearxEngineCaptchaException() - - if resp_url.path.startswith('/sorry'): - raise SearxEngineCaptchaException() - # which subdomain ? # subdomain = resp.search_params.get('google_subdomain') diff --git a/searx/engines/google_images.py b/searx/engines/google_images.py index 8c2cb9d2..612682c4 100644 --- a/searx/engines/google_images.py +++ b/searx/engines/google_images.py @@ -12,10 +12,9 @@ Definitions`_. Header set Content-Security-Policy "img-src 'self' data: ;" """ -from urllib.parse import urlencode, urlparse, unquote +from urllib.parse import urlencode, unquote from lxml import html from searx import logger -from searx.exceptions import SearxEngineCaptchaException from searx.utils import extract_text, eval_xpath from searx.engines.google import _fetch_supported_languages, supported_languages_url # NOQA # pylint: disable=unused-import @@ -23,6 +22,7 @@ from searx.engines.google import ( get_lang_country, google_domains, time_range_dict, + detect_google_sorry, ) logger = logger.getChild('google images') @@ -123,13 +123,7 @@ def response(resp): """Get response from google's search request""" results = [] - # detect google sorry - resp_url = urlparse(resp.url) - if resp_url.netloc == 'sorry.google.com' or resp_url.path == '/sorry/IndexRedirect': - raise SearxEngineCaptchaException() - - if resp_url.path.startswith('/sorry'): - raise SearxEngineCaptchaException() + detect_google_sorry(resp) # which subdomain ? # subdomain = resp.search_params.get('google_subdomain') diff --git a/searx/engines/google_news.py b/searx/engines/google_news.py index 63fef669..d04ff153 100644 --- a/searx/engines/google_news.py +++ b/searx/engines/google_news.py @@ -1,12 +1,45 @@ # SPDX-License-Identifier: AGPL-3.0-or-later -""" - Google (News) +"""Google (News) + +For detailed description of the *REST-full* API see: `Query Parameter +Definitions`_. Not all parameters can be appied, e.g. num_ (the number of +search results to return) is ignored. + +.. _Query Parameter Definitions: + https://developers.google.com/custom-search/docs/xml_results#WebSearch_Query_Parameter_Definitions + +.. _num: https://developers.google.com/custom-search/docs/xml_results#numsp + """ +# pylint: disable=invalid-name, missing-function-docstring + +import binascii +import re from urllib.parse import urlencode +from base64 import b64decode from lxml import html -from searx.utils import match_language -from searx.engines.google import _fetch_supported_languages, supported_languages_url # NOQA # pylint: disable=unused-import + +from searx import logger +from searx.utils import ( + eval_xpath, + eval_xpath_list, + eval_xpath_getindex, + extract_text, +) + +# pylint: disable=unused-import +from searx.engines.google import ( + supported_languages_url, + _fetch_supported_languages, + detect_google_sorry, +) +# pylint: enable=unused-import + +from searx.engines.google import ( + get_lang_country, + filter_mapping, +) # about about = { @@ -18,72 +51,143 @@ about = { "results": 'HTML', } -# search-url +logger = logger.getChild('google news') + +# compared to other google engines google-news has a different time range +# support. The time range is included in the search term. +time_range_dict = { + 'day': 'when:1d', + 'week': 'when:7d', + 'month': 'when:1m', + 'year': 'when:1y', +} + +# engine dependent config + categories = ['news'] -paging = True +paging = False language_support = True -safesearch = True +use_locale_domain = True time_range_support = True -number_of_results = 10 +safesearch = True # not really, but it is not generated by google -search_url = 'https://www.google.com/search'\ - '?{query}'\ - '&tbm=nws'\ - '&gws_rd=cr'\ - '&{search_options}' -time_range_attr = "qdr:{range}" -time_range_dict = {'day': 'd', - 'week': 'w', - 'month': 'm', - 'year': 'y'} - - -# do search-request def request(query, params): + """Google-News search request""" - search_options = { - 'start': (params['pageno'] - 1) * number_of_results - } + language, country, lang_country = get_lang_country( + # pylint: disable=undefined-variable + params, supported_languages, language_aliases + ) + subdomain = 'news.google.com' - if params['time_range'] in time_range_dict: - search_options['tbs'] = time_range_attr.format(range=time_range_dict[params['time_range']]) + if params['time_range']: # in time_range_dict: + query += ' ' + time_range_dict[params['time_range']] - if safesearch and params['safesearch']: - search_options['safe'] = 'on' + query_url = 'https://'+ subdomain + '/search' + "?" + urlencode({ + 'q': query, + 'hl': language, + 'lr': "lang_" + language, + 'ie': "utf8", + 'oe': "utf8", + 'ceid' : "%s:%s" % (country, language), + 'gl' : country, + }) - params['url'] = search_url.format(query=urlencode({'q': query}), - search_options=urlencode(search_options)) + if params['safesearch']: + query_url += '&' + urlencode({'safe': filter_mapping[params['safesearch']]}) - if params['language'] != 'all': - language = match_language(params['language'], supported_languages, language_aliases).split('-')[0] - if language: - params['url'] += '&hl=' + language + params['url'] = query_url + logger.debug("query_url --> %s", query_url) + + # en-US,en;q=0.8,en;q=0.5 + params['headers']['Accept-Language'] = ( + lang_country + ',' + language + ';q=0.8,' + language + ';q=0.5' + ) + logger.debug("HTTP header Accept-Language --> %s", + params['headers']['Accept-Language']) + params['headers']['Accept'] = ( + 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8' + ) + #params['google_subdomain'] = subdomain return params -# get response from search-request def response(resp): + """Get response from google's search request""" results = [] + detect_google_sorry(resp) + + # which subdomain ? + # subdomain = resp.search_params.get('google_subdomain') + + # convert the text to dom dom = html.fromstring(resp.text) - # parse results - for result in dom.xpath('//div[@class="g"]|//div[@class="g _cy"]'): - try: - r = { - 'url': result.xpath('.//a[@class="l lLrAF"]')[0].attrib.get("href"), - 'title': ''.join(result.xpath('.//a[@class="l lLrAF"]//text()')), - 'content': ''.join(result.xpath('.//div[@class="st"]//text()')), - } - except: - continue + for result in eval_xpath_list(dom, '//div[@class="xrnccd"]'): - imgs = result.xpath('.//img/@src') - if len(imgs) and not imgs[0].startswith('data'): - r['img_src'] = imgs[0] + # The first tag in the
contains the link to the + # article The href attribute of the is a google internal link, + # we can't use. The real link is hidden in the jslog attribute: + # + # - results.append(r) + jslog = eval_xpath_getindex(result, './article/a/@jslog', 0) + url = re.findall('http[^;]*', jslog) + if url: + url = url[0] + else: + # The real URL is base64 encoded in the json attribute: + # jslog="95014; 5:W251bGwsbnVsbCxudW...giXQ==; track:click" + jslog = jslog.split(";")[1].split(':')[1].strip() + try: + padding = (4 -(len(jslog) % 4)) * "=" + jslog = b64decode(jslog + padding) + except binascii.Error: + # URL cant be read, skip this result + continue + + # now we have : b'[null, ... null,"https://www.cnn.com/.../index.html"]' + url = re.findall('http[^;"]*', str(jslog))[0] + + # the first

tag in the
contains the title of the link + title = extract_text(eval_xpath(result, './article/h3[1]')) + + # the first
tag in the
contains the content of the link + content = extract_text(eval_xpath(result, './article/div[1]')) + + # the second
tag contains origin publisher and the publishing date + + pub_date = extract_text(eval_xpath(result, './article/div[2]//time')) + pub_origin = extract_text(eval_xpath(result, './article/div[2]//a')) + + pub_info = [] + if pub_origin: + pub_info.append(pub_origin) + if pub_date: + # The pub_date is mostly a string like 'yesertday', not a real + # timezone date or time. Therefore we can't use publishedDate. + pub_info.append(pub_date) + pub_info = ', '.join(pub_info) + if pub_info: + content = pub_info + ': ' + content + + # The image URL is located in a preceding sibling tag, e.g.: + # "https://lh3.googleusercontent.com/DjhQh7DMszk.....z=-p-h100-w100" + # These URL are long but not personalized (double checked via tor). + + img_src = extract_text(result.xpath('preceding-sibling::a/figure/img/@src')) + + results.append({ + 'url': url, + 'title': title, + 'content': content, + 'img_src': img_src, + }) # return results return results