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# Copyright (c) 2018, George Tokmaji
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
import os, errno, stat
import llfuse
class LCOperations(llfuse.Operations):
_inode_list = None
def __init__(self):
super().__init__()
self._inode_list = [None, None]
def _add_entry(self, parent_inode, entry, is_dir=False):
entry["parent_inode"] = parent_inode
entry["inode"] = len(self._inode_list)
entry["stat"] = stat.S_IFDIR if is_dir else stat.S_IFREG
entry["title"] = entry["title"].replace("/", chr(8260)) #⁄
self._inode_list.append(entry)
def _get_inode_by_parent(self, inode_p):
return [i["inode"] for i in self._inode_list if i and i["parent_inode"] == inode_p][0]
def _is_dir(self, inode):
return inode == llfuse.ROOT_INODE
def lookup(self, inode_p, name, ctx=None):
if name == ".":
inode = inode_p
elif name == "..":
inode = [i["inode"] for i in self._inode_list if i and i["inode"] == inode_p][0]
else:
for i in filter(None, self._inode_list):
if i["title"] == os.fsdecode(name) and i["parent_inode"] == inode_p:
inode = i["inode"]
break
else:
raise llfuse.FUSEError(errno.ENOENT)
return self.getattr(inode, ctx)
def getattr(self, inode, ctx=None):
attr = llfuse.EntryAttributes()
attr.st_ino = inode
attr.st_mode = stat.S_IFDIR if self._is_dir(inode) else stat.S_IFREG
attr.st_nlink = 1
attr.st_uid = os.getuid()
attr.st_gid = os.getgid()
attr.st_rdev = 0
attr.st_size = 0
attr.st_blksize = 1
attr.st_blocks = 1
attr.generation = 0
attr.attr_timeout = 1
attr.entry_timeout = 1
attr.st_atime_ns = 0
attr.st_ctime_ns = 0
attr.st_mtime_ns = 0
return attr
def readdir(self, inode, off):
entries = [i for i in self._inode_list if i and i["parent_inode"] == inode]
for i in range(off, len(entries)):
yield (os.fsencode(entries[i]["title"]), self.getattr(entries[i]["inode"]), i + 1)
def opendir(self, inode, ctx=None):
return inode
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