73 lines
2.6 KiB
Python
73 lines
2.6 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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"""Utility functions used across Superset"""
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import logging
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from typing import Optional, Tuple
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from flask import current_app
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from superset import app, security_manager, thumbnail_cache
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from superset.extensions import celery_app
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from superset.utils.screenshots import ChartScreenshot, DashboardScreenshot
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logger = logging.getLogger(__name__)
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WindowSize = Tuple[int, int]
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@celery_app.task(name="cache_chart_thumbnail", soft_time_limit=300)
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def cache_chart_thumbnail(
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url: str,
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digest: str,
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force: bool = False,
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window_size: Optional[WindowSize] = None,
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thumb_size: Optional[WindowSize] = None,
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) -> None:
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with app.app_context(): # type: ignore
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if not thumbnail_cache:
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logger.warning("No cache set, refusing to compute")
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return None
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logging.info("Caching chart at {url}")
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screenshot = ChartScreenshot(url, digest)
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user = security_manager.find_user(current_app.config["THUMBNAIL_SELENIUM_USER"])
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screenshot.compute_and_cache(
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user=user,
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cache=thumbnail_cache,
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force=force,
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window_size=window_size,
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thumb_size=thumb_size,
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)
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return None
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@celery_app.task(name="cache_dashboard_thumbnail", soft_time_limit=300)
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def cache_dashboard_thumbnail(
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url: str, digest: str, force: bool = False, thumb_size: Optional[WindowSize] = None
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) -> None:
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with app.app_context(): # type: ignore
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if not thumbnail_cache:
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logging.warning("No cache set, refusing to compute")
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return
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logger.info("Caching dashboard: %s", url)
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screenshot = DashboardScreenshot(url, digest)
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user = security_manager.find_user(current_app.config["THUMBNAIL_SELENIUM_USER"])
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screenshot.compute_and_cache(
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user=user, cache=thumbnail_cache, force=force, thumb_size=thumb_size,
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)
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