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Gracefully handling non-existing fork room #420

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merged 4 commits into from
Dec 18, 2024
Merged

Gracefully handling non-existing fork room #420

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6f73427
Gracefully handling non-existing fork room
trungleduc Dec 17, 2024
8012a81
Handle RoomNotFound error on fork creation
trungleduc Dec 18, 2024
587a496
Missing return
trungleduc Dec 18, 2024
31679b6
Apply suggestions from code review
trungleduc Dec 18, 2024
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12 changes: 10 additions & 2 deletions projects/jupyter-server-ydoc/jupyter_server_ydoc/handlers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -642,7 +642,12 @@ async def put(self, root_roomid):
Optionally keeps the fork in sync with the root.
"""
fork_roomid = uuid4().hex
root_room = await self._websocket_server.get_room(root_roomid)
try:
root_room = await self._websocket_server.get_room(root_roomid)
except RoomNotFound:
self.set_status(404)
return self.finish({"code": 404, "error": "Room not found"})
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update = root_room.ydoc.get_update()
fork_ydoc = Doc()
fork_ydoc.apply_update(update)
Expand Down Expand Up @@ -676,7 +681,10 @@ async def delete(self, fork_roomid):
"""
Deletes a forked document, and optionally merges it back in the root document.
"""
fork_info = FORK_ROOMS[fork_roomid]
fork_info = FORK_ROOMS.get(fork_roomid, None)
if fork_info is None:
self.set_status(404)
return self.finish({"code": 404, "error": "Fork room does not exist"})
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root_roomid = fork_info["root_roomid"]
del FORK_ROOMS[fork_roomid]
if self.get_query_argument("merge") == "true":
Expand Down
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