def __init__(self, file_name, uid=0):
self._file = open(file_name, 'rb+')
self._superblock = SuperBlock.read(self._file)
self._fat = FAT.read(self._superblock.cluster_num,
self._superblock.fat_offset, self._file,
self._superblock)
self._inode_map = InodeMap.read(self._superblock.cluster_num,
self._superblock.inode_map_offset,
self._file)
self._root = Root(self._superblock, self._fat, self._file)
self._uid = uid
def __init__(self, file_name, uid=0):
self._file = open(file_name, 'rb+')
self._superblock = SuperBlock.read(self._file)
self._fat = FAT.read(self._superblock.cluster_num,
self._superblock.fat_offset, self._file,
self._superblock)
self._inode_map = InodeMap.read(self._superblock.cluster_num,
self._superblock.inode_map_offset,
self._file)
self._root = Root(self._superblock, self._fat, self._file)
self._uid = uid
def format(file_name, password='******', size=50 * 1024 * 1024):
file = open(file_name, 'wb')
file.seek(size - 1)
file.write(b'\0')
superblock = SuperBlock.default(size)
file.seek(superblock.inode_array_offset)
inode_table = [Inode(id) for id in range(superblock.cluster_num)]
for inode in inode_table:
file.write(inode.pack())
cluster_size = superblock.cluster_size
offset = cluster_size - file.tell() % cluster_size
superblock.first_cluster_offset = file.tell() + offset
superblock.free_cluster_num = (
superblock.cluster_num - superblock.first_cluster_offset //
cluster_size)
fat = FAT.empty(superblock.free_cluster_num, superblock)
inode_map = InodeMap.empty(superblock.free_cluster_num)
Root.write(superblock, fat, inode_map, file)
superblock.write(file)
fat.write(superblock.fat_offset, file)
inode_map.write(superblock.inode_map_offset, file)
file.close()
fs = FileSystem(file_name, 0)
fs.create('users')
hash = bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode()
fs.write('users', '0 admin %s' % hash)
def format(file_name, password='******', size=50 * 1024 * 1024):
file = open(file_name, 'wb')
file.seek(size - 1)
file.write(b'\0')
superblock = SuperBlock.default(size)
file.seek(superblock.inode_array_offset)
inode_table = [Inode(id) for id in range(superblock.cluster_num)]
for inode in inode_table:
file.write(inode.pack())
cluster_size = superblock.cluster_size
offset = cluster_size - file.tell() % cluster_size
superblock.first_cluster_offset = file.tell() + offset
superblock.free_cluster_num = (
superblock.cluster_num -
superblock.first_cluster_offset // cluster_size)
fat = FAT.empty(superblock.free_cluster_num, superblock)
inode_map = InodeMap.empty(superblock.free_cluster_num)
Root.write(superblock, fat, inode_map, file)
superblock.write(file)
fat.write(superblock.fat_offset, file)
inode_map.write(superblock.inode_map_offset, file)
file.close()
fs = FileSystem(file_name, 0)
fs.create('users')
hash = bcrypt.hashpw(password.encode(), bcrypt.gensalt()).decode()
fs.write('users', '0 admin %s' % hash)