139 lines
4.4 KiB
Python
139 lines
4.4 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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from __future__ import annotations
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import logging
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from typing import TYPE_CHECKING
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from flask import current_app
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from superset import security_manager
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from superset.tasks.exceptions import ExecutorNotFoundError
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from superset.tasks.types import ExecutorType
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from superset.tasks.utils import get_current_user, get_executor
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from superset.utils.core import override_user
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from superset.utils.hashing import md5_sha_from_str
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if TYPE_CHECKING:
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from superset.connectors.sqla.models import BaseDatasource, SqlaTable
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from superset.models.dashboard import Dashboard
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from superset.models.slice import Slice
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logger = logging.getLogger(__name__)
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def _adjust_string_for_executor(
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unique_string: str,
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executor_type: ExecutorType,
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executor: str,
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) -> str:
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"""
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Add the executor to the unique string if the thumbnail is
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user-specific.
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"""
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if executor_type == ExecutorType.CURRENT_USER:
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# add the user id to the string to make it unique
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unique_string = f"{unique_string}\n{executor}"
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return unique_string
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def _adjust_string_with_rls(
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unique_string: str,
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datasources: list[SqlaTable | None] | set[BaseDatasource],
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executor: str,
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) -> str:
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"""
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Add the RLS filters to the unique string based on current executor.
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"""
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user = (
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security_manager.find_user(executor)
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or security_manager.get_current_guest_user_if_guest()
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)
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if user:
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stringified_rls = ""
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with override_user(user):
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for datasource in datasources:
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if (
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datasource
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and hasattr(datasource, "is_rls_supported")
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and datasource.is_rls_supported
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):
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rls_filters = datasource.get_sqla_row_level_filters()
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if len(rls_filters) > 0:
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stringified_rls += (
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f"{str(datasource.id)}\t"
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+ "\t".join([str(f) for f in rls_filters])
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+ "\n"
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)
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if stringified_rls:
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unique_string = f"{unique_string}\n{stringified_rls}"
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return unique_string
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def get_dashboard_digest(dashboard: Dashboard) -> str | None:
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config = current_app.config
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try:
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executor_type, executor = get_executor(
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executors=config["THUMBNAIL_EXECUTORS"],
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model=dashboard,
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current_user=get_current_user(),
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)
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except ExecutorNotFoundError:
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return None
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if func := config["THUMBNAIL_DASHBOARD_DIGEST_FUNC"]:
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return func(dashboard, executor_type, executor)
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unique_string = (
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f"{dashboard.id}\n{dashboard.charts}\n{dashboard.position_json}\n"
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f"{dashboard.css}\n{dashboard.json_metadata}"
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)
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unique_string = _adjust_string_for_executor(unique_string, executor_type, executor)
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unique_string = _adjust_string_with_rls(
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unique_string, dashboard.datasources, executor
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)
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return md5_sha_from_str(unique_string)
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def get_chart_digest(chart: Slice) -> str | None:
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config = current_app.config
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try:
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executor_type, executor = get_executor(
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executors=config["THUMBNAIL_EXECUTORS"],
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model=chart,
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current_user=get_current_user(),
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)
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except ExecutorNotFoundError:
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return None
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if func := config["THUMBNAIL_CHART_DIGEST_FUNC"]:
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return func(chart, executor_type, executor)
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unique_string = f"{chart.params or ''}.{executor}"
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unique_string = _adjust_string_for_executor(unique_string, executor_type, executor)
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unique_string = _adjust_string_with_rls(unique_string, [chart.datasource], executor)
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return md5_sha_from_str(unique_string)
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