cliamp playback was implemented entirely in officer: it located the cliamp binary,
validated the requested path against the owner's home, faked a PTY with `script`,
injected PULSE_SINK and an ALSA config shipped inside the API tree, spawned parec to
capture the sink, and set up the pulseaudio daemon and the virtual_out null sink at
every boot — about 356 lines of audio-pipeline knowledge in a process that is meant to
be a proxy, and none of it owned by the sidecar whose whole job is music.
all of it now lives in sidecar/music: cliamp-ws.ts serves both sockets (/cliamp/ws for
the player, /cliamp/audio/ws for the PCM capture) on the loopback server it already
runs, pulse-audio.ts does the daemon + sink setup at sidecar startup instead of at
officer's, and the asoundrc moved next to the code that passes it. officer keeps the
part that is actually its job — authenticating the browser — and relays frames both
ways without reading them (api/cliamp/relay.ts, same dumb-pipe shape as the vault
notifications relay). the browser's frame contract is unchanged, so the frontend is not
touched.
two things fixed on the way: the traversal check now requires a separator after the
home path, so a sibling directory whose name merely starts with it can no longer pass;
and the music proxy no longer special-cases /reindex and /reindex/stream by name to
extend the idle timeout — it extends the whole prefix, because a proxy should not know
which of the sidecar's routes are slow.
the music-specific `files` query param is out of the shared WS envelope too: upgradeWs
now carries the raw query string, which any relayed provider can use.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>