api: use DjangoQL for searches

Signed-off-by: Jens Langhammer <jens@goauthentik.io>
This commit is contained in:
Jens Langhammer 2023-11-18 22:18:01 +01:00
parent 0797dec46b
commit 8937c0b63b
No known key found for this signature in database
4 changed files with 112 additions and 24 deletions

84
authentik/api/search.py Normal file
View File

@ -0,0 +1,84 @@
"""DjangoQL search"""
from django.db import models
from django.db.models import QuerySet
from djangoql.ast import Name
from djangoql.exceptions import DjangoQLError
from djangoql.queryset import apply_search
from djangoql.schema import DjangoQLSchema, StrField
from rest_framework.fields import JSONField
from rest_framework.filters import SearchFilter
from rest_framework.request import Request
from rest_framework.serializers import ModelSerializer
from structlog.stdlib import get_logger
LOGGER = get_logger()
class JSONSearchField(StrField):
"""JSON field for DjangoQL"""
def get_lookup(self, path, operator, value):
search = "__".join(path)
op, invert = self.get_operator(operator)
q = models.Q(**{"%s%s" % (search, op): self.get_lookup_value(value)})
return ~q if invert else q
class BaseSchema(DjangoQLSchema):
"""Base Schema which deals with JSON Fields"""
def resolve_name(self, name: Name):
model = self.model_label(self.current_model)
root_field = name.parts[0]
field = self.models[model].get(root_field)
# If the query goes into a JSON field, return the root
# field as the JSON field will do the rest
if isinstance(field, JSONSearchField):
# This is a workaround; build_filter will remove the right-most
# entry in the path as that is intended to be the same as the field
# however for JSON that is not the case
if name.parts[-1] != root_field:
name.parts.append(root_field)
return field
return super().resolve_name(name)
class QLSearch(SearchFilter):
"""rest_framework search filter which uses DjangoQL"""
def get_search_terms(self, request) -> str:
"""
Search terms are set by a ?search=... query parameter,
and may be comma and/or whitespace delimited.
"""
params = request.query_params.get(self.search_param, "")
params = params.replace("\x00", "") # strip null characters
return params
def filter_queryset(self, request: Request, queryset: QuerySet, view) -> QuerySet:
search_fields = self.get_search_fields(view, request)
search_query = self.get_search_terms(request)
serializer: ModelSerializer = view.get_serializer()
class InlineSchema(BaseSchema):
def get_fields(self, model):
fields = []
for field in search_fields:
field_name = field.split("__")[0]
serializer_field = serializer.fields.get(field_name)
if isinstance(serializer_field, JSONField):
fields.append(
JSONSearchField(
model=model,
name=field_name,
)
)
else:
fields.append(field)
return fields
try:
return apply_search(queryset, search_query, schema=InlineSchema)
except DjangoQLError as exc:
LOGGER.warning(exc)
return SearchFilter().filter_queryset(request, queryset, view)

View File

@ -159,7 +159,7 @@ REST_FRAMEWORK = {
"authentik.rbac.filters.ObjectFilter",
"django_filters.rest_framework.DjangoFilterBackend",
"rest_framework.filters.OrderingFilter",
"rest_framework.filters.SearchFilter",
"authentik.api.search.QLSearch",
],
"DEFAULT_PARSER_CLASSES": [
"rest_framework.parsers.JSONParser",
@ -411,7 +411,6 @@ if DEBUG:
CELERY["task_always_eager"] = True
os.environ[ENV_GIT_HASH_KEY] = "dev"
INSTALLED_APPS.append("silk")
SILKY_PYTHON_PROFILER = True
MIDDLEWARE = ["silk.middleware.SilkyMiddleware"] + MIDDLEWARE
REST_FRAMEWORK["DEFAULT_RENDERER_CLASSES"].append(
"rest_framework.renderers.BrowsableAPIRenderer"

48
poetry.lock generated
View File

@ -1,4 +1,4 @@
# This file is automatically @generated by Poetry 1.6.1 and should not be changed by hand.
# This file is automatically @generated by Poetry 1.7.0 and should not be changed by hand.
[[package]]
name = "aiohttp"
@ -1207,6 +1207,19 @@ Django = ">=3.2"
gprof2dot = ">=2017.09.19"
sqlparse = "*"
[[package]]
name = "djangoql"
version = "0.17.1"
description = "DjangoQL: Advanced search language for Django"
optional = false
python-versions = "*"
files = [
{file = "djangoql-0.17.1.tar.gz", hash = "sha256:4f053d0128e28f412926e2da902735f4bdcbab5c08d43be4dfefd747fca2e96e"},
]
[package.dependencies]
ply = ">=3.8"
[[package]]
name = "djangorestframework"
version = "3.14.0"
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@ -2500,6 +2503,17 @@ files = [
dev = ["pre-commit", "tox"]
testing = ["pytest", "pytest-benchmark"]
[[package]]
name = "ply"
version = "3.11"
description = "Python Lex & Yacc"
optional = false
python-versions = "*"
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{file = "ply-3.11.tar.gz", hash = "sha256:00c7c1aaa88358b9c765b6d3000c6eec0ba42abca5351b095321aef446081da3"},
]
[[package]]
name = "prometheus-client"
version = "0.18.0"
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@ -4394,4 +4398,4 @@ files = [
[metadata]
lock-version = "2.0"
python-versions = "~3.12"
content-hash = "d0fe6ae1be389f8a5ca5112aa90555e2ce0a4f336f07a1da9c43dd521e9d9340"
content-hash = "d5fa43e62d0eeb62e501d6e5fb9f41b063451391c2841691c68a10326cdefb55"

View File

@ -133,6 +133,7 @@ django-guardian = "*"
django-model-utils = "*"
django-prometheus = "*"
django-redis = "*"
djangoql = "*"
djangorestframework = "*"
djangorestframework-guardian = "*"
docker = "*"