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https://github.com/fuckpiracyshield/data-storage.git
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78 lines
2.3 KiB
Python
78 lines
2.3 KiB
Python
from piracyshield_component.environment import Environment
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from piracyshield_component.log.logger import Logger
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import os
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# TODO: use custom exceptions.
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class CacheStorage:
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logger = None
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def __init__(self):
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self.logger = Logger('storage')
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if not os.path.exists(Environment.CACHE_PATH):
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raise FileNotFoundError(f'The specified folder `{Environment.CACHE_PATH}` does not exist')
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if not os.path.isdir(Environment.CACHE_PATH):
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raise NotADirectoryError(f'The specified path `{Environment.CACHE_PATH}` is not a directory')
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def write(self, filename: str, content: bytes) -> str | Exception:
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path = self._get_absolute_path(filename)
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try:
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with open(path, 'wb') as handle:
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handle.write(content)
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except IOError:
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raise IOError(f'Failed to write content to file `{filename}`')
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# return the absolute path
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return path
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def get(self, filename: str) -> str | Exception:
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return self._get_absolute_path(filename)
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def read(self, filename: str) -> bytes | Exception:
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path = self._get_absolute_path(filename)
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try:
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with open(path, 'r') as handle:
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return handle.read()
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except FileNotFoundError:
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raise FileNotFoundError(f'The specified file `{filename}` does not exist')
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except IOError:
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raise IOError(f'Failed to read content from file `{filename}`')
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def exists(self, filename: str) -> bool:
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path = self._get_absolute_path(filename)
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return os.path.exists(path)
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def get_all(self) -> list | Exception:
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try:
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return os.listdir(Environment.CACHE_PATH)
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except IOError:
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raise IOError(f'Failed to get files from folder `{Environment.CACHE_PATH}`')
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def remove(self, filename: str) -> bool | Exception:
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path = self._get_absolute_path(filename)
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try:
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os.remove(path)
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except FileNotFoundError:
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raise FileNotFoundError(f'The specified file `{filename}` does not exist')
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except IOError:
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raise IOError(f'Failed to remove file `{filename}`.')
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return True
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def _get_absolute_path(self, filename: str) -> str:
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return os.path.join(Environment.CACHE_PATH, filename)
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