refactor: lock related code(wip); fix a litmus warning, pass a litmus warning

Author: rexzhang

asgi_webdav/constants.py

@@ -374,10 +374,11 @@ def __repr__(self) -> str:
 
 
 # Lock ---
-# --- lock:request
+# --- lock:request:header
 class DAVRequestIfConditionType(IntEnum):
     TOKEN = auto()
     ETAG = auto()
+    NO_LOCK = auto()  # for: Not <DAV:no-lock>
 
 
 @dataclass(slots=True)
@@ -398,6 +399,13 @@ class DAVRequestIf:
     conditions: list[list[DAVRequestIfCondition]]
 
 
+# --- lock:request:body
+@dataclass(slots=True)
+class DAVRequestBodyLock:
+    scope: DAVLockScope
+    owner: str
+
+
 # --- lock:locker
 DAVLockTimeoutMaxValue = 2 ^ 32 - 1  # TODO: move into config
 

asgi_webdav/lock.py

@@ -157,9 +157,6 @@ async def is_valid_lock_token(self, token: UUID, path: DAVPath) -> bool:
     async def get_info_by_path(self, path: DAVPath) -> list[DAVLockInfo]:
         """获取指定路径的所有锁信息"""
         async with self.lock:
-            if path not in self.path2token_map:
-                return []
-
             result: list[DAVLockInfo] = list()
             for token in self.path2token_map.get_tokens(path):
                 info = self._get_lock_info(token)
@@ -199,6 +196,6 @@ async def _release_by_path(self, path: DAVPath) -> None:
 
     def __repr__(self) -> str:
         s = "{}\n{}".format(
-            pprint.pformat(self.path2token_map), pprint.pformat(self.lock_map)
+            pprint.pformat(self.path2token_map.data), pprint.pformat(self.lock_map)
         )
         return s