WebDAV sync support, access tokens, REST control endpoints (#10)

Implement complete WebDAV file serving compatible with various clients from Windows File Explorer to more specialized sync tools. The old control WebSocket has been updated to part-DAV, part REST API instead. Implemented user:pass BASIC auth. Added UI and backend for creating tokens that avoid the need to use actual username and password for requests from CLI or DAV.

cista/protocol.py

@@ -1,125 +1,10 @@
 from __future__ import annotations
 
-import shutil
-from pathlib import PurePosixPath
 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
-
-    def affected_paths(self) -> list[str]:
-        """Return list of paths affected by this operation for change notification."""
-        return []
-
-
-class MkDir(ControlBase):
-    path: str
-
-    def __call__(self):
-        path = config.config.path / filename.sanitize(self.path)
-        path.mkdir(parents=True, exist_ok=False)
-
-    def affected_paths(self) -> list[str]:
-        return [filename.sanitize(self.path)]
-
-
-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))
-
-    def affected_paths(self) -> list[str]:
-        sanitized = filename.sanitize(self.path)
-        new_path = str(PurePosixPath(sanitized).with_name(filename.sanitize(self.to)))
-        return [sanitized, new_path]
-
-
-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()
-
-    def affected_paths(self) -> list[str]:
-        return [filename.sanitize(p) for p in self.sel]
-
-
-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)
-
-    def affected_paths(self) -> list[str]:
-        dst = filename.sanitize(self.dst)
-        paths = [filename.sanitize(p) for p in self.sel]
-        # Include new locations in dst
-        paths.extend(f"{dst}/{PurePosixPath(p).name}" for p in self.sel)
-        return paths
-
-
-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)
-
-    def affected_paths(self) -> list[str]:
-        dst = filename.sanitize(self.dst)
-        # Only destinations are new (sources unchanged)
-        return [f"{dst}/{PurePosixPath(filename.sanitize(p)).name}" for p in self.sel]
-
-
-ControlTypes = MkDir | Rename | Rm | Mv | Cp
-
-
-class StatusMsg(msgspec.Struct):
-    status: str
-    req: Any
 
 
 class ErrorMsg(msgspec.Struct):