1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
# SPDX-License-Identifier: AGPL-3.0-or-later
"""Google (News)
For detailed description of the *REST-full* API see: `Query Parameter
Definitions`_. Not all parameters can be appied:
- num_ : the number of search results is ignored
- save_ : is ignored / Google-News results are always *SafeSearch*
.. _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
.. _save: https://developers.google.com/custom-search/docs/xml_results#safesp
"""
# 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 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,
)
# pylint: enable=unused-import
from searx.engines.google import (
get_lang_info,
detect_google_sorry,
)
# about
about = {
"website": 'https://news.google.com',
"wikidata_id": 'Q12020',
"official_api_documentation": 'https://developers.google.com/custom-search',
"use_official_api": False,
"require_api_key": False,
"results": 'HTML',
}
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 = False
use_locale_domain = True
time_range_support = True
# Google-News results are always *SafeSearch*. Option 'safesearch' is set to
# False here, otherwise checker will report safesearch-errors::
#
# safesearch : results are identitical for safesearch=0 and safesearch=2
safesearch = False
def request(query, params):
"""Google-News search request"""
lang_info = get_lang_info(
# pylint: disable=undefined-variable
params, supported_languages, language_aliases
)
# google news has only one domain
lang_info['subdomain'] = 'news.google.com'
ceid = "%s:%s" % (lang_info['country'], lang_info['language'])
# google news redirects en to en-US
if lang_info['hl'] == 'en':
lang_info['hl'] = 'en-US'
# Very special to google-news compared to other google engines, the time
# range is included in the search term.
if params['time_range']:
query += ' ' + time_range_dict[params['time_range']]
query_url = 'https://' + lang_info['subdomain'] + '/search' + "?" + urlencode({
'q': query,
'hl': lang_info['hl'],
'lr': lang_info['lr'],
'ie': "utf8",
'oe': "utf8",
'gl': lang_info['country'],
}) + ('&ceid=%s' % ceid) # ceid includes a ':' character which must not be urlencoded
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']
params['headers']['Accept'] = (
'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8'
)
return params
def response(resp):
"""Get response from google's search request"""
results = []
detect_google_sorry(resp)
# convert the text to dom
dom = html.fromstring(resp.text)
for result in eval_xpath_list(dom, '//div[@class="xrnccd"]'):
# The first <a> tag in the <article> contains the link to the
# article The href attribute of the <a> is a google internal link,
# we can't use. The real link is hidden in the jslog attribute:
#
# <a ...
# jslog="95014; 4:https://www.cnn.com/.../index.html; track:click"
# href="./articles/CAIiENu3nGS...?hl=en-US&gl=US&ceid=US%3Aen"
# ... />
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 <h3> tag in the <article> contains the title of the link
title = extract_text(eval_xpath(result, './article/h3[1]'))
# the first <div> tag in the <article> contains the content of the link
content = extract_text(eval_xpath(result, './article/div[1]'))
# the second <div> 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 <img> 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
|
