[enh] add redis offline engine / https://redis.io/

Slightly modified merge of commit [97269be6], [01a8a5814a] and [c8d2b5eb] from
searx.

[97269be6] https://github.com/searx/searx/commit/97269be6
[01a8a581] https://github.com/searx/searx/commit/01a8a581
[c8d2b5eb] https://github.com/searx/searx/commit/c8d2b5eb

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
This commit is contained in:
Adam Tauber 2021-05-30 19:20:17 +02:00 committed by Markus Heiser
parent e33858d6ef
commit e4b6558339
2 changed files with 84 additions and 0 deletions

View file

@ -0,0 +1,75 @@
# SPDX-License-Identifier: AGPL-3.0-or-later
# lint: pylint
# pylint: disable=missing-function-docstring
"""Redis engine (offline)
"""
import redis # pylint: disable=import-error
engine_type = 'offline'
# redis connection variables
host = '127.0.0.1'
port = 6379
password = ''
db = 0
# engine specific variables
paging = False
result_template = 'key-value.html'
exact_match_only = True
redis_client = None
def init(_engine_settings):
# pylint: disable=global-statement
global redis_client
redis_client = redis.StrictRedis(
host = host,
port = port,
db = db,
password = password or None,
decode_responses = True,
)
def search(query, _params):
if not exact_match_only:
return search_keys(query)
ret = redis_client.hgetall(query)
if ret:
ret['template'] = result_template
return [ret]
if ' ' in query:
qset, rest = query.split(' ', 1)
ret = []
for res in redis_client.hscan_iter(
qset, match='*{}*'.format(rest)
):
ret.append({
res[0]: res[1],
'template': result_template,
})
return ret
return []
def search_keys(query):
ret = []
for key in redis_client.scan_iter(
match='*{}*'.format(query)
):
key_type = redis_client.type(key)
res = None
if key_type == 'hash':
res = redis_client.hgetall(key)
elif key_type == 'list':
res = dict(enumerate(redis_client.lrange(key, 0, -1)))
if res:
res['template'] = result_template
res['redis_key'] = key
ret.append(res)
return ret

View file

@ -960,6 +960,15 @@ engines:
timeout : 10.0 timeout : 10.0
disabled : True disabled : True
# Required dependency: redis
# - name: myredis
# engine: redis_server
# exact_match_only: False
# host: '127.0.0.1'
# port: 6379
# password: ''
# db: 0
# tmp suspended: bad certificate # tmp suspended: bad certificate
# - name : scanr structures # - name : scanr structures
# shortcut: scs # shortcut: scs