49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
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# -*- coding: utf-8 -*-
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# This file is part of the Calibre-Web (https://github.com/janeczku/calibre-web)
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# Copyright (C) 2022 OzzieIsaacs
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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try:
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from wand.image import Image
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use_IM = True
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except (ImportError, RuntimeError) as e:
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use_IM = False
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NO_JPEG_EXTENSIONS = ['.png', '.webp', '.bmp']
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COVER_EXTENSIONS = ['.png', '.webp', '.bmp', '.jpg', '.jpeg']
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def cover_processing(tmp_file_name, img, extension):
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tmp_cover_name = os.path.join(os.path.dirname(tmp_file_name), 'cover.jpg')
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if extension in NO_JPEG_EXTENSIONS:
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if use_IM:
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with Image(blob=img) as imgc:
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imgc.format = 'jpeg'
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imgc.transform_colorspace('rgb')
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imgc.save(filename=tmp_cover_name)
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return tmp_cover_name
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else:
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return None
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if img:
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with open(tmp_cover_name, 'wb') as f:
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f.write(img)
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return tmp_cover_name
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else:
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return None
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