Files
minstrel/internal/api/api.go
T
bvandeusen d86af7397d
test-go / test (push) Successful in 55s
test-go / integration (push) Successful in 4m53s
feat(auth): active sessions API with origin/current IP — #370
Server half of the active-sessions surface. Web UI follows.

The operator wants this specifically to notice a compromised account, which
sets the bar: the addresses have to be trustworthy, or the feature is worse
than absent because it looks like evidence.

Migration 0052 adds created_ip + last_ip. Two columns, not one, and the pair
is the signal: a session issued at home and now being used from elsewhere is
the shape of a stolen token, and neither column alone can show that. Typed
text, matching the user_agent column beside it — these are displayed, never
queried by subnet, and inet round-trips through pgx as a netip.Prefix that
renders "1.2.3.4/32".

The rest of the schema was already waiting. Migration 0004 anticipated this
exactly: "last_seen_at enables an 'active sessions' UI later (not wired in
this plan) without schema churn." last_seen_at is live data — the auth
middleware already touches it per request — so last_ip rides that same
UPDATE for free.

Getting the address right is the substance here. Nothing extracted a client
IP anywhere before, and both obvious approaches are wrong:

- RemoteAddr alone shows the reverse proxy on every session, which is the
  normal self-hosted deployment. Noise shaped like data.
- Trusting X-Forwarded-For lets any client choose what its victim sees. A
  security surface an attacker can write to is worse than none.

So auth.ClientIP trusts the header only when the request actually arrived
from a proxy range. Public RemoteAddr means a direct connection, so XFF is
attacker-controlled and ignored outright. Private RemoteAddr means we walk
XFF right-to-left — proxies append, so the right end is what our own
infrastructure wrote — and take the first non-proxy address. A forged XFF
only prepends to the left end, which that walk never reaches. Unit-tested,
including both spoofing shapes.

Fails closed on a public-addressed proxy (separate host, CDN): we report the
proxy rather than trusting a forgeable header. Documented at the function.

Endpoints, all scoped by user_id per rule #47:

  GET    /api/me/sessions                → list, flagging the current row
  DELETE /api/me/sessions/{id}           → 204, or 404 if not yours
  POST   /api/me/sessions/logout-others  → {"revoked": n}

Keyed on session id alone, any household member could revoke another's
session by guessing a uuid, so the delete carries user_id in its WHERE and
:execrows distinguishes "not yours" (404) from a false 204. There's a test
that asserts the row actually survives, not merely that we returned 404.

The middleware now also puts the session id in context. logout-others is
defined by exclusion, and without knowing which session is ours the
safe-looking action deletes everything including the caller's — so it
refuses rather than guesses when the id is absent, and that refusal is
tested for non-deletion too.

audit_log.action is plain text with no CHECK, so the two new actions need no
migration (rule #36 checked, not assumed).

Codegen is real sqlc 1.31.1 via the container in `make generate` — docker is
present on this workstation even though Go and sqlc aren't — rather than the
hand-written .sql.go shortcut used in milestone #268.
2026-08-05 09:17:40 -04:00

277 lines
14 KiB
Go

// Package api implements Minstrel's native JSON surface under /api. It is
// consumed by the built-in web SPA and (eventually) the Flutter client.
// Subsonic-compatible endpoints under /rest are intentionally separate —
// see internal/subsonic — and the two packages must not depend on each other.
package api
import (
"log/slog"
"math/rand"
"github.com/go-chi/chi/v5"
"github.com/jackc/pgx/v5/pgxpool"
"git.fabledsword.com/bvandeusen/minstrel/internal/auth"
"git.fabledsword.com/bvandeusen/minstrel/internal/config"
"git.fabledsword.com/bvandeusen/minstrel/internal/coverart"
"git.fabledsword.com/bvandeusen/minstrel/internal/eventbus"
"git.fabledsword.com/bvandeusen/minstrel/internal/library"
"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrconfig"
"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrquarantine"
"git.fabledsword.com/bvandeusen/minstrel/internal/lidarrrequests"
"git.fabledsword.com/bvandeusen/minstrel/internal/mailer"
"git.fabledsword.com/bvandeusen/minstrel/internal/playevents"
"git.fabledsword.com/bvandeusen/minstrel/internal/playlists"
"git.fabledsword.com/bvandeusen/minstrel/internal/recsettings"
"git.fabledsword.com/bvandeusen/minstrel/internal/tags"
"git.fabledsword.com/bvandeusen/minstrel/internal/tracks"
)
// Mount attaches /api/* handlers to r. Public endpoints (login) are outside
// RequireUser; everything else is gated by the middleware. The events writer
// is shared with the Subsonic mount so /rest/scrobble feeds the same store.
func Mount(r chi.Router, pool *pgxpool.Pool, logger *slog.Logger, events *playevents.Writer, recCfg config.RecommendationConfig, recSettings *recsettings.Service, lidarrCfg *lidarrconfig.Service, lidarrReqs *lidarrrequests.Service, lidarrQuar *lidarrquarantine.Service, tracksSvc *tracks.Service, playlistsSvc *playlists.Service, coverEnricher *coverart.Enricher, coverSettings *coverart.SettingsService, tagSettings *tags.SettingsService, scanner *library.Scanner, scanCfg library.RunScanConfig, dataDir string, sender mailer.Sender, bus *eventbus.Bus, playlistScheduler *playlists.Scheduler, streamSecret []byte) {
rng := rand.New(rand.NewSource(rand.Int63()))
h := &handlers{
pool: pool, logger: logger, events: events, recCfg: recCfg,
recSettings: recSettings,
rng: rng.Float64,
lidarrCfg: lidarrCfg,
lidarrRequests: lidarrReqs,
lidarrQuarantine: lidarrQuar,
tracks: tracksSvc,
playlists: playlistsSvc,
coverart: coverEnricher,
coverSettings: coverSettings,
tagSettings: tagSettings,
scanner: scanner,
scanCfg: scanCfg,
dataDir: dataDir,
mailer: sender,
eventbus: bus,
playlistScheduler: playlistScheduler,
streamSecret: streamSecret,
}
r.Route("/api", func(api chi.Router) {
api.Post("/auth/login", h.handleLogin)
api.Post("/auth/register", h.handleRegister)
api.Post("/auth/forgot-password", h.handleForgotPassword)
api.Post("/auth/reset-password", h.handleResetPassword)
// Stream lives outside authed.Group so it can accept EITHER a
// session (resolved by the OptionalUser middleware) OR a signed
// query token (UPnP / Sonos path; see streamAuthOk). The
// middleware attaches user to context when a valid cookie /
// bearer is present but does NOT 401 on absence; the handler's
// own streamAuthOk performs the actual auth check. See the
// design at
// docs/superpowers/specs/2026-06-03-android-output-picker-upnp-design.md.
api.With(auth.OptionalUser(pool, logger)).Get("/tracks/{id}/stream", h.handleGetStream)
// Extension-bearing alias so Sonos's URL probe can identify the
// audio format from the path. The {ext} param is consumed by chi
// and ignored by the handler (which keys off {id}). See task #610.
api.With(auth.OptionalUser(pool, logger)).Get("/tracks/{id}/stream.{ext}", h.handleGetStream)
api.Group(func(authed chi.Router) {
authed.Use(auth.RequireUser(pool))
authed.Post("/auth/logout", h.handleLogout)
authed.Get("/me", h.handleGetMe)
authed.Get("/me/system-playlists-status", h.handleGetSystemPlaylistsStatus)
authed.Get("/me/recommendation-metrics", h.handleGetRecommendationMetrics)
authed.Get("/me/listenbrainz", h.handleGetListenBrainz)
authed.Put("/me/listenbrainz", h.handlePutListenBrainz)
authed.Get("/me/history", h.handleGetMyHistory)
authed.Put("/me/password", h.handleChangePassword)
authed.Put("/me/profile", h.handleUpdateMyProfile)
authed.Put("/me/timezone", h.handlePutTimezone)
authed.Get("/me/api-token", h.handleGetMyAPIToken)
authed.Post("/me/api-token", h.handleRegenerateMyAPIToken)
authed.Get("/me/sessions", h.handleListMySessions)
authed.Delete("/me/sessions/{id}", h.handleRevokeMySession)
authed.Post("/me/sessions/logout-others", h.handleRevokeMyOtherSessions)
authed.Get("/artists", h.handleListArtists)
authed.Get("/artists/{id}", h.handleGetArtist)
authed.Get("/artists/{id}/tracks", h.handleGetArtistTracks)
authed.Get("/artists/{id}/similar", h.handleGetSimilarArtists)
authed.Get("/artists/{id}/top-tracks", h.handleGetArtistTopTracks)
authed.Get("/albums/{id}", h.handleGetAlbum)
authed.Get("/albums/{id}/cover", h.handleGetCover)
authed.Get("/library/shuffle", h.handleLibraryShuffle)
authed.Get("/library/albums", h.handleListLibraryAlbums)
authed.Get("/library/sync", h.handleLibrarySync)
authed.Get("/tracks/{id}", h.handleGetTrack)
// /tracks/{id}/stream is mounted above with OptionalUser so
// it can accept either a session or a signed token.
authed.Get("/search", h.handleSearch)
authed.Get("/radio", h.handleRadio)
authed.Get("/discover/suggestions", h.handleListSuggestions)
// Snooze = "not right now", time-boxed and self-expiring
// (#2374). Not a dislike — see the migration for why.
authed.Post("/discover/suggestions/{mbid}/snooze", h.handleSnoozeSuggestion)
authed.Delete("/discover/suggestions/{mbid}/snooze", h.handleUnsnoozeSuggestion)
authed.Get("/discover/snoozes", h.handleListSuggestionSnoozes)
authed.Get("/home", h.handleGetHome)
authed.Get("/home/index", h.handleGetHomeIndex)
authed.Post("/events", h.handleEvents)
authed.Get("/events/stream", h.handleEventsStream)
// UPnP / Sonos cast slice: issue a short-lived HMAC stream URL
// the speaker can fetch without the user's session. See the
// design at
// docs/superpowers/specs/2026-06-03-android-output-picker-upnp-design.md.
authed.Post("/cast/stream-token", h.handleCastStreamToken)
authed.Post("/likes/tracks/{id}", h.handleLikeTrack)
authed.Delete("/likes/tracks/{id}", h.handleUnlikeTrack)
authed.Post("/likes/albums/{id}", h.handleLikeAlbum)
authed.Delete("/likes/albums/{id}", h.handleUnlikeAlbum)
authed.Post("/likes/artists/{id}", h.handleLikeArtist)
authed.Delete("/likes/artists/{id}", h.handleUnlikeArtist)
authed.Get("/likes/tracks", h.handleListLikedTracks)
authed.Get("/likes/albums", h.handleListLikedAlbums)
authed.Get("/likes/artists", h.handleListLikedArtists)
authed.Get("/likes/ids", h.handleGetLikedIDs)
authed.Get("/lidarr/search", h.handleLidarrSearch)
authed.Post("/requests", h.handleCreateRequest)
authed.Get("/requests", h.handleListRequests)
authed.Get("/requests/{id}", h.handleGetRequest)
authed.Delete("/requests/{id}", h.handleCancelRequest)
authed.Post("/quarantine", h.handleFlag)
authed.Delete("/quarantine/{track_id}", h.handleUnflag)
authed.Get("/quarantine/mine", h.handleListMyQuarantine)
// Client-reported playback errors (zero-duration tracks,
// load failures). Admin-only inbox; any user can report.
authed.Post("/playback-errors", h.handleReportPlaybackError)
// Device diagnostics ingest (M9). Any signed-in user can
// POST a batch, but events are only stored when the
// account's debug_mode_enabled flag is on (handler no-ops
// otherwise). Admin views live under /admin/diagnostics.
authed.Post("/diagnostics", h.handleReportDiagnostics)
// Self-hosted in-app update channel (#397). Auth-gated to
// prevent anonymous bandwidth abuse on the APK stream;
// /apk additionally per-user rate-limited.
authed.Get("/client/version", h.handleClientVersion)
authed.Get("/client/apk", h.handleClientAPK)
authed.Route("/admin", func(admin chi.Router) {
admin.Use(auth.RequireAdmin())
admin.Get("/lidarr/config", h.handleGetLidarrConfig)
admin.Put("/lidarr/config", h.handlePutLidarrConfig)
admin.Post("/lidarr/test", h.handleTestLidarrConnection)
admin.Get("/lidarr/quality-profiles", h.handleListQualityProfiles)
admin.Get("/lidarr/metadata-profiles", h.handleListMetadataProfiles)
admin.Get("/lidarr/root-folders", h.handleListRootFolders)
admin.Get("/requests", h.handleListAdminRequests)
admin.Post("/requests/{id}/approve", h.handleApproveRequest)
admin.Post("/requests/{id}/reject", h.handleRejectRequest)
admin.Get("/quarantine", h.handleListAdminQuarantine)
admin.Post("/quarantine/{track_id}/resolve", h.handleResolveQuarantine)
admin.Get("/playback-errors", h.handleListAdminPlaybackErrors)
admin.Post("/playback-errors/{id}/resolve", h.handleResolvePlaybackError)
admin.Post("/quarantine/{track_id}/delete-file", h.handleDeleteQuarantineFile)
admin.Post("/quarantine/{track_id}/delete-via-lidarr", h.handleDeleteQuarantineViaLidarr)
admin.Get("/quarantine/actions", h.handleListQuarantineActions)
admin.Delete("/tracks/{id}", h.handleRemoveTrack)
admin.Post("/albums/{id}/cover/refetch", h.handleAdminAlbumRefetchCover)
admin.Post("/covers/refetch-missing", h.handleAdminBulkRefetchCovers)
admin.Get("/scan/status", h.handleGetScanStatus)
admin.Post("/scan/run", h.handleTriggerScan)
admin.Get("/library/coverage", h.handleGetLibraryCoverage)
admin.Get("/invites", h.handleListInvites)
admin.Post("/invites", h.handleCreateInvite)
admin.Delete("/invites/{token}", h.handleDeleteInvite)
admin.Get("/users", h.handleAdminListUsers)
admin.Put("/users/{id}/admin", h.handleUpdateUserAdmin)
admin.Post("/users", h.handleAdminCreateUser)
admin.Delete("/users/{id}", h.handleAdminDeleteUser)
admin.Post("/users/{id}/reset-password", h.handleAdminResetPassword)
admin.Put("/users/{id}/auto-approve", h.handleAdminAutoApproveToggle)
admin.Put("/users/{id}/debug-mode", h.handleAdminDebugModeToggle)
// Device diagnostics timeline + device overview (M9).
admin.Get("/diagnostics", h.handleListAdminDiagnostics)
admin.Get("/diagnostics/devices", h.handleListAdminDiagnosticDevices)
admin.Get("/cover-sources", h.handleListCoverSources)
admin.Patch("/cover-sources/{provider_id}", h.handleUpdateCoverSource)
admin.Post("/cover-sources/{provider_id}/test", h.handleTestCoverSource)
admin.Post("/cover-sources/research", h.handleResearchMissingArt)
admin.Get("/tag-sources", h.handleListTagSources)
admin.Patch("/tag-sources/{provider_id}", h.handleUpdateTagSource)
admin.Post("/tag-sources/{provider_id}/test", h.handleTestTagSource)
admin.Post("/tag-sources/research", h.handleResearchTags)
admin.Get("/smtp-config", h.handleGetSMTPConfig)
admin.Put("/smtp-config", h.handleUpdateSMTPConfig)
admin.Post("/smtp-config/test", h.handleTestSMTPConfig)
// Recommendation tuning lab (#1250): scoring-weight
// profiles + taste-build knobs, DB-backed, live effect.
admin.Get("/recommendation-tuning", h.handleGetRecommendationTuning)
admin.Patch("/recommendation-tuning/{scope}", h.handlePatchRecommendationTuning)
admin.Post("/recommendation-tuning/{scope}/reset", h.handleResetRecommendationTuning)
// Weekly outcome trends + knob-turn markers (#1251).
admin.Get("/recommendation-trends", h.handleGetRecommendationTrends)
})
authed.Get("/playlists", h.handleListPlaylists)
authed.Post("/playlists", h.handleCreatePlaylist)
authed.Get("/playlists/{id}", h.handleGetPlaylist)
authed.Patch("/playlists/{id}", h.handleUpdatePlaylist)
authed.Delete("/playlists/{id}", h.handleDeletePlaylist)
authed.Post("/playlists/{id}/tracks", h.handleAppendTracks)
authed.Delete("/playlists/{id}/tracks/{position}", h.handleRemovePlaylistTrack)
authed.Put("/playlists/{id}/tracks", h.handleReorderPlaylist)
authed.Get("/playlists/{id}/cover", h.handleGetPlaylistCover)
authed.Post("/playlists/system/{kind}/refresh", h.handleSystemPlaylistRefresh)
authed.Get("/playlists/system/{kind}/shuffle", h.handleSystemPlaylistShuffle)
})
})
}
type handlers struct {
pool *pgxpool.Pool
logger *slog.Logger
events *playevents.Writer
recCfg config.RecommendationConfig
recSettings *recsettings.Service
rng func() float64
lidarrCfg *lidarrconfig.Service
lidarrRequests *lidarrrequests.Service
lidarrQuarantine *lidarrquarantine.Service
tracks *tracks.Service
playlists *playlists.Service
coverart *coverart.Enricher
coverSettings *coverart.SettingsService
tagSettings *tags.SettingsService
scanner *library.Scanner
scanCfg library.RunScanConfig
dataDir string
mailer mailer.Sender
eventbus *eventbus.Bus
playlistScheduler *playlists.Scheduler
// streamSecret is the HMAC key used by SignStreamToken /
// VerifyStreamToken to authenticate the UPnP-speaker stream path
// (see internal/api/stream_token.go and the design at
// docs/superpowers/specs/2026-06-03-android-output-picker-upnp-design.md).
// nil in slice 1; slice 2 wires the env-var-with-app_preferences-
// fallback loader. A nil secret leaves the cookie path intact and
// makes the token path unreachable (HMAC of empty key won't match
// anything a client mints), which is the desired slice-1 default.
streamSecret []byte
}