47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
# Copy from https://github.com/silentsokolov/flask-thumbnails/blob/master/flask_thumbnails/storage_backends.py
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import errno
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import os
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from abc import ABC, abstractmethod
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class BaseStorageBackend(ABC):
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def __init__(self, app=None):
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self.app = app
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@abstractmethod
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def read(self, filepath, mode="rb", **kwargs):
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raise NotImplementedError
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@abstractmethod
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def exists(self, filepath):
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raise NotImplementedError
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@abstractmethod
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def save(self, filepath, data):
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raise NotImplementedError
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class FilesystemStorageBackend(BaseStorageBackend):
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def read(self, filepath, mode="rb", **kwargs):
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with open(filepath, mode) as f: # pylint: disable=unspecified-encoding
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return f.read()
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def exists(self, filepath):
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return os.path.exists(filepath)
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def save(self, filepath, data):
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directory = os.path.dirname(filepath)
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if not os.path.exists(directory):
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try:
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os.makedirs(directory)
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except OSError as e:
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if e.errno != errno.EEXIST:
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raise
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if not os.path.isdir(directory):
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raise IOError("{} is not a directory".format(directory))
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with open(filepath, "wb") as f:
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f.write(data)
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