cista-storage/cista/protocol.py

152 lines
3.1 KiB
Python

from __future__ import annotations
import shutil
from typing import Any
import msgspec
from sanic import BadRequest
from cista import config
from cista.util import filename
## Control commands
class ControlBase(msgspec.Struct, tag_field="op", tag=str.lower):
def __call__(self):
raise NotImplementedError
class MkDir(ControlBase):
path: str
def __call__(self):
path = config.config.path / filename.sanitize(self.path)
path.mkdir(parents=True, exist_ok=False)
class Rename(ControlBase):
path: str
to: str
def __call__(self):
to = filename.sanitize(self.to)
if "/" in to:
raise BadRequest("Rename 'to' name should only contain filename, not path")
path = config.config.path / filename.sanitize(self.path)
path.rename(path.with_name(to))
class Rm(ControlBase):
sel: list[str]
def __call__(self):
root = config.config.path
sel = [root / filename.sanitize(p) for p in self.sel]
for p in sel:
if p.is_dir():
shutil.rmtree(p)
else:
p.unlink()
class Mv(ControlBase):
sel: list[str]
dst: str
def __call__(self):
root = config.config.path
sel = [root / filename.sanitize(p) for p in self.sel]
dst = root / filename.sanitize(self.dst)
if not dst.is_dir():
raise BadRequest("The destination must be a directory")
for p in sel:
shutil.move(p, dst)
class Cp(ControlBase):
sel: list[str]
dst: str
def __call__(self):
root = config.config.path
sel = [root / filename.sanitize(p) for p in self.sel]
dst = root / filename.sanitize(self.dst)
if not dst.is_dir():
raise BadRequest("The destination must be a directory")
for p in sel:
if p.is_dir():
# Note: copies as dst rather than in dst unless name is appended.
shutil.copytree(
p,
dst / p.name,
dirs_exist_ok=True,
ignore_dangling_symlinks=True,
)
else:
shutil.copy2(p, dst)
ControlTypes = MkDir | Rename | Rm | Mv | Cp
## File uploads and downloads
class FileRange(msgspec.Struct):
name: str
size: int
start: int
end: int
class StatusMsg(msgspec.Struct):
status: str
req: FileRange
class ErrorMsg(msgspec.Struct):
error: dict[str, Any]
## Directory listings
class FileEntry(msgspec.Struct, array_like=True, frozen=True):
level: int
name: str
key: str
mtime: int
size: int
isfile: int
def __repr__(self):
return self.key or "FileEntry()"
class Update(msgspec.Struct, array_like=True):
...
class UpdKeep(Update, tag="k"):
count: int
class UpdDel(Update, tag="d"):
count: int
class UpdIns(Update, tag="i"):
items: list[FileEntry]
class UpdateMessage(msgspec.Struct):
update: list[UpdKeep | UpdDel | UpdIns]
class Space(msgspec.Struct):
disk: int
free: int
usage: int
storage: int