fix(server): fail closed on unregistered model IDs - #1696
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Request model/draft_model/adapters values were treated as Hub or local paths when absent from the alias maps, so a client could force arbitrary downloads. Accept only registered aliases and resolve the CLI adapter against the request model id.
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Summary
ModelProvider.loadtreated unknown requestmodel/draft_model/adaptersvalues as Hub or local paths (dict.get(key, key)), so a client could force arbitrarysnapshot_download/ path loads against a runningmlx_lm.server.--adapter-pathagainst the request model id (fixes the silent drop that open Fix mlx_lm.server --adapter-path silently ignored at startup #1249 also targets; this PR additionally rejects free-form adapter paths).Test plan
pytest tests/test_server.py::TestModelProviderFailClosed(4 passed)254d153Commit is SSH-signed.
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