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
|
# SPDX-License-Identifier: AGPL-3.0-or-later
"""
Elasticsearch
"""
from json import loads, dumps
from searx.exceptions import SearxEngineAPIException
base_url = 'http://localhost:9200'
username = ''
password = ''
index = ''
search_url = base_url + '/' + index + '/_search'
query_type = 'match'
custom_query_json = {}
show_metadata = False
categories = ['general']
def init(engine_settings):
if 'query_type' in engine_settings and engine_settings['query_type'] not in _available_query_types:
raise ValueError('unsupported query type', engine_settings['query_type'])
if index == '':
raise ValueError('index cannot be empty')
def request(query, params):
if query_type not in _available_query_types:
return params
if username and password:
params['auth'] = (username, password)
params['url'] = search_url
params['method'] = 'GET'
params['data'] = dumps(_available_query_types[query_type](query))
params['headers']['Content-Type'] = 'application/json'
return params
def _match_query(query):
"""
The standard for full text queries.
searx format: "key:value" e.g. city:berlin
REF: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-query.html
"""
try:
key, value = query.split(':')
except Exception as e:
raise ValueError('query format must be "key:value"') from e
return {"query": {"match": {key: {'query': value}}}}
def _simple_query_string_query(query):
"""
Accepts query strings, but it is less strict than query_string
The field used can be specified in index.query.default_field in Elasticsearch.
REF: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-simple-query-string-query.html
"""
return {'query': {'simple_query_string': {'query': query}}}
def _term_query(query):
"""
Accepts one term and the name of the field.
searx format: "key:value" e.g. city:berlin
REF: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-term-query.html
"""
try:
key, value = query.split(':')
except Exception as e:
raise ValueError('query format must be key:value') from e
return {'query': {'term': {key: value}}}
def _terms_query(query):
"""
Accepts multiple terms and the name of the field.
searx format: "key:value1,value2" e.g. city:berlin,paris
REF: https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-terms-query.html
"""
try:
key, values = query.split(':')
except Exception as e:
raise ValueError('query format must be key:value1,value2') from e
return {'query': {'terms': {key: values.split(',')}}}
def _custom_query(query):
key, value = query.split(':')
custom_query = custom_query_json
for query_key, query_value in custom_query.items():
if query_key == '{{KEY}}':
custom_query[key] = custom_query.pop(query_key)
if query_value == '{{VALUE}}':
custom_query[query_key] = value
return custom_query
def response(resp):
results = []
resp_json = loads(resp.text)
if 'error' in resp_json:
raise SearxEngineAPIException(resp_json['error'])
for result in resp_json['hits']['hits']:
r = {key: str(value) if not key.startswith('_') else value for key, value in result['_source'].items()}
r['template'] = 'key-value.html'
if show_metadata:
r['metadata'] = {'index': result['_index'], 'id': result['_id'], 'score': result['_score']}
results.append(r)
return results
_available_query_types = {
# Full text queries
# https://www.elastic.co/guide/en/elasticsearch/reference/current/full-text-queries.html
'match': _match_query,
'simple_query_string': _simple_query_string_query,
# Term-level queries
# https://www.elastic.co/guide/en/elasticsearch/reference/current/term-level-queries.html
'term': _term_query,
'terms': _terms_query,
# Query JSON defined by the instance administrator.
'custom': _custom_query,
}
|
