baseimage-tutorial-framework/tfw/components/ide/file_manager/file_manager.py
2019-08-07 09:44:03 +02:00

57 lines
1.6 KiB
Python

from functools import wraps
from glob import glob
from fnmatch import fnmatchcase
from os.path import dirname, isdir, isfile, realpath
def _with_is_allowed(func):
@wraps(func)
def wrapper(self, *args, **kwargs):
if self._is_allowed(args[0]): # pylint: disable=protected-access
return func(self, *args, **kwargs)
raise ValueError('Forbidden path.')
return wrapper
class FileManager: # pylint: disable=too-many-instance-attributes
def __init__(self, patterns):
self.patterns = patterns
@property
def files(self):
return list(set(
path
for pattern in self.patterns
for path in glob(pattern, recursive=True)
if isfile(path) and self._is_allowed(path)
))
@property
def parents(self):
return list(set(
self._find_directory(pattern)
for pattern in self.patterns
))
@staticmethod
def _find_directory(pattern):
while pattern and not isdir(pattern):
pattern = dirname(pattern)
return pattern
def _is_allowed(self, filepath):
return any(
fnmatchcase(realpath(filepath), pattern)
for pattern in self.patterns
)
@_with_is_allowed
def read_file(self, filepath): # pylint: disable=no-self-use
with open(filepath, 'rb', buffering=0) as ifile:
return ifile.read().decode(errors='surrogateescape')
@_with_is_allowed
def write_file(self, filepath, contents): # pylint: disable=no-self-use
with open(filepath, 'wb', buffering=0) as ofile:
ofile.write(contents.encode())