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49 lines
1.6 KiB
Python
49 lines
1.6 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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import logging
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from io import BytesIO
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from superset.commands.report.exceptions import ReportSchedulePdfFailedError
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logger = logging.getLogger(__name__)
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try:
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from PIL import Image
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except ModuleNotFoundError:
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logger.info("No PIL installation found")
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def build_pdf_from_screenshots(snapshots: list[bytes]) -> bytes:
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images = []
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for snap in snapshots:
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img = Image.open(BytesIO(snap))
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if img.mode == "RGBA":
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img = img.convert("RGB")
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images.append(img)
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logger.info("building pdf")
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try:
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new_pdf = BytesIO()
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images[0].save(new_pdf, "PDF", save_all=True, append_images=images[1:])
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new_pdf.seek(0)
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except Exception as ex:
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raise ReportSchedulePdfFailedError(
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f"Failed converting screenshots to pdf {str(ex)}"
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) from ex
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return new_pdf.read()
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