def __init__(self, root, opts):
MetaFs.__init__(self, root, opts)
self.encryption_key = retrieve_key(
opts['enc_pass'], self._full_path(self.enc_keymatter_file))
self.signing_key = retrieve_key(
opts['sign_pass'], self._full_path(self.sign_keymatter_file))
self.cipher = BlockCipher(self.encryption_key, self.signing_key)
#todo: securely delete passwords
enc_pass = ''
sign_pass = ''
def __init__(self, root, opts):
MetaFs.__init__(self, root, opts)
self.encryption_key = retrieve_key(opts['enc_pass'], self._full_path(self.enc_keymatter_file))
self.signing_key = retrieve_key(opts['sign_pass'], self._full_path(self.sign_keymatter_file))
self.cipher = BlockCipher(self.encryption_key, self.signing_key)
#todo: securely delete passwords
enc_pass = ''
sign_pass = ''
class EncFs(MetaFs):
enc_keymatter_file = '.enc_keymatter'
sign_keymatter_file = '.sign_keymatter'
def __init__(self, root, opts):
MetaFs.__init__(self, root, opts)
self.encryption_key = retrieve_key(
opts['enc_pass'], self._full_path(self.enc_keymatter_file))
self.signing_key = retrieve_key(
opts['sign_pass'], self._full_path(self.sign_keymatter_file))
self.cipher = BlockCipher(self.encryption_key, self.signing_key)
#todo: securely delete passwords
enc_pass = ''
sign_pass = ''
def set_empty_meta(self, path, clear_meta=False):
m_data = {'empty': True}
if not clear_meta:
m_data = merge_dict(m_data, self.read_metadata_file(path))
self.write_metadata_file(path, m_data)
def is_key_file(self, partial):
partial = self._without_leading_slash(partial)
return partial == self.enc_keymatter_file or partial == self.sign_keymatter_file
def is_blacklisted_file(self, partial):
return self.is_key_file(partial) or super(
EncFs, self).is_blacklisted_file(partial)
# ============
# File methods
# ============
def create(self, path, mode, fi=None):
f = super(EncFs, self).create(path, mode, fi)
# Write meta here for consistency
self.set_empty_meta(path)
return f
def truncate(self, path, length, fh=None):
super(EncFs, self).truncate(path, length, fh)
self.set_empty_meta(path, True)
def read(self, path, length, offset, fh):
if self.is_blacklisted_file(path):
raise IOError()
metadata = self.read_metadata_file(path)
return self.cipher.read_file(path, length, offset, fh, metadata)
def write(self, path, buf, offset, fh):
if self.is_blacklisted_file(path):
raise IOError
print("write %s len: %s offset: %s" % (path, len(buf), offset))
old_metadata = self.read_metadata_file(path)
res = self.cipher.write_file(self._full_path(path), buf, offset,
old_metadata)
new_meta = res[1]
self.write_metadata_file(path, new_meta)
num_written = res[0]
return num_written
class EncFs(MetaFs):
enc_keymatter_file = '.enc_keymatter'
sign_keymatter_file = '.sign_keymatter'
def __init__(self, root, opts):
MetaFs.__init__(self, root, opts)
self.encryption_key = retrieve_key(opts['enc_pass'], self._full_path(self.enc_keymatter_file))
self.signing_key = retrieve_key(opts['sign_pass'], self._full_path(self.sign_keymatter_file))
self.cipher = BlockCipher(self.encryption_key, self.signing_key)
#todo: securely delete passwords
enc_pass = ''
sign_pass = ''
def set_empty_meta(self, path, clear_meta=False):
m_data = {
'empty': True
}
if not clear_meta:
m_data = merge_dict(m_data, self.read_metadata_file(path))
self.write_metadata_file(path, m_data)
def is_key_file(self, partial):
partial = self._without_leading_slash(partial)
return partial == self.enc_keymatter_file or partial == self.sign_keymatter_file
def is_blacklisted_file(self, partial):
return self.is_key_file(partial) or super(EncFs, self).is_blacklisted_file(partial)
# ============
# File methods
# ============
def create(self, path, mode, fi=None):
f = super(EncFs, self).create(path, mode, fi)
# Write meta here for consistency
self.set_empty_meta(path)
return f
def truncate(self, path, length, fh=None):
super(EncFs, self).truncate(path, length, fh)
self.set_empty_meta(path, True)
def read(self, path, length, offset, fh):
if self.is_blacklisted_file(path):
raise IOError()
metadata = self.read_metadata_file(path)
return self.cipher.read_file(path, length, offset, fh, metadata)
def write(self, path, buf, offset, fh):
if self.is_blacklisted_file(path):
raise IOError
print("write %s len: %s offset: %s" % (path, len(buf), offset))
old_metadata = self.read_metadata_file(path)
res = self.cipher.write_file(self._full_path(path), buf, offset, old_metadata)
new_meta = res[1]
self.write_metadata_file(path, new_meta)
num_written = res[0]
return num_written
