109 lines
3.7 KiB
Python
109 lines
3.7 KiB
Python
from django.conf import settings
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from opensearchpy import OpenSearch
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from opensearchpy.exceptions import RequestError
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def initialise_opensearch():
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auth = (settings.OPENSEARCH_USERNAME, settings.OPENSEARCH_PASSWORD)
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client = OpenSearch(
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# fmt: off
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hosts=[{"host": settings.OPENSEARCH_URL,
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"port": settings.OPENSEARCH_PORT}],
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http_compress=False, # enables gzip compression for request bodies
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http_auth=auth,
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# client_cert = client_cert_path,
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# client_key = client_key_path,
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use_ssl=settings.OPENSEARCH_TLS,
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verify_certs=False,
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ssl_assert_hostname=False,
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ssl_show_warn=False,
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# a_certs=ca_certs_path,
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)
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return client
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def construct_query(query, fields, size):
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if not fields:
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fields = settings.OPENSEARCH_MAIN_SEARCH_FIELDS
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if not size:
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size = 5
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query = {
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"size": size,
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"query": {
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"query_string": {
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"query": query,
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"fields": fields,
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# "default_field": "msg",
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# "type": "best_fields",
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"fuzziness": "AUTO",
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"fuzzy_transpositions": True,
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"fuzzy_max_expansions": 50,
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"fuzzy_prefix_length": 0,
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# "minimum_should_match": 1,
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"default_operator": "or",
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"analyzer": "standard",
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"lenient": True,
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"boost": 1,
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"allow_leading_wildcard": True,
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# "enable_position_increments": False,
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"phrase_slop": 3,
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# "max_determinized_states": 10000,
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"quote_field_suffix": "",
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"quote_analyzer": "standard",
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"analyze_wildcard": False,
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"auto_generate_synonyms_phrase_query": True,
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}
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},
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"sort": [
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{
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"ts": {
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"order": "desc",
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}
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}
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],
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}
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return query
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def filter_blacklisted(user, response):
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response["redacted"] = 0
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response["exemption"] = None
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# For every hit from ES
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for item in list(response["hits"]["hits"]):
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# For every blacklisted type
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for blacklisted_type in settings.OPENSEARCH_BLACKLISTED.keys():
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# Check this field we are matching exists
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if blacklisted_type in item["_source"].keys():
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content = item["_source"][blacklisted_type]
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# For every item in the blacklisted array for the type
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for blacklisted_item in settings.OPENSEARCH_BLACKLISTED[
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blacklisted_type
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]:
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if blacklisted_item in str(content):
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# Remove the item
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if item in response["hits"]["hits"]:
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if not user.is_superuser:
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response["hits"]["hits"].remove(item)
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# Let the UI know something was redacted
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response["redacted"] += 1
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response["exemption"] = True
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def run_main_query(client, user, query, fields=None, size=None):
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if fields:
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for field in fields:
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if field not in settings.OPENSEARCH_MAIN_SEARCH_FIELDS:
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return False
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if size:
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if size not in settings.OPENSEARCH_MAIN_SIZES:
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return False
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search_query = construct_query(query, fields, size)
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# fmt: off
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try:
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response = client.search(body=search_query,
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index=settings.OPENSEARCH_INDEX_MAIN)
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except RequestError:
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return False
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filter_blacklisted(user, response)
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return response
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