From 8937c0b63b2bcabc22e6742da437466474bbf883 Mon Sep 17 00:00:00 2001 From: Jens Langhammer Date: Sat, 18 Nov 2023 22:18:01 +0100 Subject: [PATCH] api: use DjangoQL for searches Signed-off-by: Jens Langhammer --- authentik/api/search.py | 84 ++++++++++++++++++++++++++++++++++++++ authentik/root/settings.py | 3 +- poetry.lock | 48 ++++++++++++---------- pyproject.toml | 1 + 4 files changed, 112 insertions(+), 24 deletions(-) create mode 100644 authentik/api/search.py diff --git a/authentik/api/search.py b/authentik/api/search.py new file mode 100644 index 000000000..e19c78394 --- /dev/null +++ b/authentik/api/search.py @@ -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) diff --git a/authentik/root/settings.py b/authentik/root/settings.py index 5c9e5bf45..ab2c8dfbf 100644 --- a/authentik/root/settings.py +++ b/authentik/root/settings.py @@ -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" diff --git a/poetry.lock b/poetry.lock index fe90220ed..7ccc3ec2b 100644 --- a/poetry.lock +++ b/poetry.lock @@ -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. 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