The DLNA UDN from discovery carries a "uuid:" prefix (e.g.
uuid:fa095ecc-...), but a SoundTouch STORED_MUSIC account is the bare UUID
plus /0 (the speaker's /sources reports the bare form). The mismatch made
the player Library tab show an "Add" button for an already-registered
server, and an Add via the UI would have registered a wrong "uuid:.../0"
account. Normalize (strip "uuid:") when mapping discovery results to the DTO
and when building the account in HandleAddLibraryServer, so the LAN list and
the registered list agree and Add builds the correct account. Verified live:
discover now returns the bare UDN, matching /sources.
Also populate the previously-unset MediaServer.Address from the
ContentDirectory control URL host.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Foundation for browsing DLNA media servers and playing tracks on a
SoundTouch speaker (https://github.com/gesellix/Bose-SoundTouch/discussions/213).
- pkg/discovery/ssdp.go: a target-agnostic UPnP SSDP core. SearchSSDP sweeps
multiple targets (a typed device URN plus ssdp:all, since some servers only
answer one), fans out across all routable IPv4 interfaces, and sends each
batch in two rounds spaced 80ms apart so slower NAS/router boxes that drop
back-to-back bursts still answer. FetchDescription parses a UPnP device
description into a generic device tree with FindService/FirstIcon that
recurse through sub-devices. The XML parse is a pure function for offline
unit testing.
- pkg/discovery/mediaserver.go: DiscoverMediaServers rides the core, keeps
only devices exposing a ContentDirectory service, and dedupes by UDN. The
description->MediaServer mapping is a pure, tested function.
- pkg/dlna: a ContentDirectory browse client (Browse + DIDL-Lite parse +
IsAudioItem), consuming discovery.MediaServer. Kept separate from discovery,
mirroring how pkg/client is separate from pkg/discovery. Track metadata maps
upnp:artist / upnp:album; the audio filter accepts audio/* MIME or an
audioItem/musicTrack class.
Existing SoundTouch speaker discovery (pkg/discovery/upnp.go) is untouched;
migrating it onto the shared core is a later, de-risked step. Tests cover the
description/DIDL parsers and run the browse client against an in-process
ContentDirectory server; the parse was checked against real minidlna and
FRITZ!Box output.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Tobias GesellchenandClaude Opus 4.8