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59448e9283
* feat(agents): retry-later error type with optional server delay
Add agents.ErrRetryLater and agents.RetryLaterError, which carries the
delay requested by an external service (e.g. ListenBrainz's
X-RateLimit-Reset-In). scrobbler.ErrRetryLater becomes an alias of the new
sentinel, so existing errors.Is checks and the plugin error-string protocol
keep working unchanged. Groundwork for honoring server-requested retry
delays across scrobbling, metadata agents and artwork.
Song.Equals tests moved to song_test.go to enable external test package.
* fix(scrobbler): honor backoff window and server-requested retry delay
ListenBrainz 429s were decoded into a typed error that classified as
unrecoverable, silently discarding the scrobble (a JSON-bodied 429 was
measured live). The client now maps any 429 to agents.RetryLaterError,
carrying X-RateLimit-Reset-In when present (capped at 1h). Last.fm error 29
(rate limit) is now retryable like 11/16. The buffer's drain loop no longer
lets wake signals bypass an active backoff window - new plays enqueue but
drain only when the window closes - and the wait honors the server delay
via max(backoff, retryIn).
* feat(agents): skip cooling-down agents in aggregate calls
When an agent reports retry-later, remember a per-agent cooldown deadline
(the server-requested delay, or 1 minute when unspecified) and skip that
agent in all aggregate metadata calls until it passes. A round that found
no data but skipped or saw a throttled agent returns ErrRetryLater instead
of ErrNotFound, so callers cannot mistake rate limiting for a definitive
'no data' answer.
* feat(artwork): honor server-requested retry delay when rescheduling
When an external image lookup fails with a retry-later error carrying a
delay (e.g. a 429 with X-RateLimit-Reset-In), the chain trace carries the
largest such hint back to the worker, which reschedules the item at
max(exponential backoff, server delay) instead of backoff alone.
* feat(plugins): retry-later with optional delay for scrobbler and agent plugins
Scrobbler plugins can now return scrobbler(retry_later:N) to request a
retry in N seconds (capped at 1h); the bare token keeps its old meaning.
Metadata-agent plugins, which had no error vocabulary at all, gain the
parallel agent(retry_later[:N]) token, mapped to agents.RetryLaterError so
the aggregate's cooldown and the artwork worker honor plugin throttling
the same way as built-in agents.
* fix: address whole-branch review findings for retry-later handling
Narrow the aggregate's throttled rule to the spec sentence: core.Agents returns
ErrRetryLater only when no agent answered at all (all skipped-cooling or
retry-later). An agent that does not implement the called method now returns an
internal errUnsupported instead of ErrNotFound, so it counts as "did not run" —
without that, the always-appended local agent would answer for biography, URL
and images and make ErrRetryLater unreachable.
Wire the consequence in core/external: a throttled round no longer stamps
ExternalInfoUpdatedAt (artist and album), so the empty result is not cached for
the TTL, and TopSongs maps ErrRetryLater to the same empty-200 the not-found
path already produced instead of a new client-facing error.
Move the Last.fm code-29 mapping into the client's central error construction so
every metadata path produces RetryLaterError, and map ListenBrainz's body-level
code 429 (sent with a non-429 HTTP status) the same way.
Clamp server- and plugin-requested delays in seconds before scaling to a
Duration, in all three parse sites: a header of 18446744074 wrapped past 2^64 and
came out as a 0.29s delay.
Also: extract the artwork worker's reschedule computation into retryDelay() and
cover both it and the trace RetryIn wiring with tests; collapse the double regex
call in mapScrobblerError; drop capabilities.ScrobblerErrorRetryLaterIn (ndpgen
never emits funcs, so plugin authors could not reach it); regenerate the PDKs so
MetadataAgentError reaches the Go and Rust SDKs; de-flake the cooldown tests
(long RetryIn for the skip case, separate expiry spec); and cover the max()
retry-delay aggregation across users in the scrobble buffer.
* refactor: dedupe retry-later parsing and simplify error collection
- Add agents.NewRetryLater and agents.RetryLaterFromSeconds, with a single
1h cap, replacing the parse+clamp+multiply logic and the maxRetryInSeconds
constant duplicated across listenbrainz, plugins and the agent adapter.
- Move HTTP header parsing to httpclient.RetryAfter, so the transport layer
owns it and stays domain-agnostic; drop retryInFromHeaders from the
ListenBrainz client. Covered by a new Ginkgo table in that package.
- Collapse the two near-identical plugin retry_later regexes into one
parseRetryLater(prefix, msg) shared by the agent and scrobbler adapters.
- Fold the duplicated noteRetryIn snippet from fetchArtistImage and
fetchAlbumImage into recordAgent, which already branched on the same
isTransientExternal condition.
- Replace the atomic.Bool + note() closure in populateArtistInfo with
errgroup's own error collection; the group carries no context, so a
returned error does not cancel its siblings.
- Reuse recoveringScrobbler for the per-user delay test instead of a third
double, and switch fakeScrobbler's mutex-guarded error to the
atomic.Pointer idiom already used in the same package.
* refactor(listenbrainz): keep rate-limit header parsing in the adapter
The X-RateLimit-Reset-In header is ListenBrainz's own convention, not a
shared one: Last.fm sends no rate-limit headers at all and reports its
limit as a body code, and no other integration in tree sends Retry-After.
A parser in utils/httpclient implied a uniformity across services that
does not exist, so it moves back next to the only client that can know
which header its service sends.
* refactor(agents): collapse the retry-later sentinel and error into one type
ErrRetryLater is now the zero-delay RetryLaterError rather than a separate
errors.New value, so errors.Is and errors.AsType both match the sentinel and
every delay-carrying variant. That removes the trap where a bare sentinel
silently skipped the AsType path, and lets every consumer read the delay off
the error directly: the RetryIn accessor and the two constructors are gone,
with the policy cap applied where untrusted input is parsed.
* refactor(agents): split the cooldown store from the per-dispatch tally
The cooldown map and mutex become a cooldowns value with active/park, holding
no knowledge of errors; agentAttempts records one dispatch's outcomes and owns
the classification that noteAgentError used to hide behind a bool. The three
dispatch loops now touch a single object: skip folds the cooldown check and the
throttled flag into one call, so the store never appears in the loops.
* refactor(agents): share one dispatch loop between the agent call helpers
callAgentMethod and callAgentSliceMethod ran identical loops, differing only in
how they test a result for emptiness: a slice cannot be compared against its
zero value, so the two could not share a constraint. Both now delegate to
callAgent, which takes that test as a parameter. Keeping the loop in one place
matters more than the lines saved: it holds the cooldown skip, the attempt
recording and the empty-dispatch verdict, and a fix applied to one copy but not
the other would be silent.
* test: cover the two retry-later paths a mutation could break silently
Both gaps were proven, not guessed: making the artwork worker pass 0 instead
of the collected hint left all 386 specs green, and replacing the default
agent cooldown with 0 left the agents suite green. The worker test drives a
throttled image agent through drain and asserts the persisted retry_at, and
the cooldown test parks an agent that asked to be retried without naming a
delay, which is what Last.fm does on every rate limit.
* refactor(artwork): carry the external failure as an error, not a flag plus a trace field
The retry delay was riding on ChainTrace, a diagnostic that gets persisted, while
the very same signal — an external source faulted — already travelled by value as
resolution.extError. That was two mechanisms for one idea, and it put control-flow
state inside a serializable trace.
resolution.extError and chainState.extErr become the error itself, so a caller
checks err != nil for the fault and errors.AsType for the delay the provider asked
for. The agent loops return that error last, per convention, and longerRetry keeps
whichever failure wants the longer wait. ChainTrace goes back to holding only steps
and no longer imports core/agents.
* fix(artwork): check the resolve error before reading its resolution
Reading res.extError before the err check was safe only because every error path
in resolve returns a bare resolution{}; a future path returning a partly-filled
one would have been read silently. The failure path now returns no delay
explicitly.
* test(artwork): assert the delay acquire reports, not just its downstream effect
acquire's retry delay was only covered through the worker's persisted retry_at,
one layer away from where the value is computed. Both outcomes are now pinned at
the processor: a plain failure asks for nothing, a throttled provider's delay is
passed through.
* refactor: share the retry-seconds parse and drop the backoff deadline arithmetic
The clamp-before-scaling invariant lived in two parsers and was independently
re-tested in three files with the same magic number; a fix applied to one copy
would have left the others wrapping a huge value down to a fraction of a second.
It moves to agents.ParseRetryIn.
The buffer tracked an absolute retryDeadline only to re-arm a timer that was
already armed for the same instant; a backingOff flag says the same thing without
the arithmetic. The plugin token regex now carries its capability in the pattern
instead of capturing and comparing, so another capability's token in the same
message cannot mask it. resolution.extError becomes extErr, matching its
chainState counterpart.
* fix(agents): keep the longer cooldown when parks overlap
Calls to one agent overlap, so a short cooldown could land after a long one
started and cut it short. park now keeps whichever deadline is later, matching
the rule longerRetry already applies on the artwork side. No in-tree provider
can currently produce two different delays for the same agent, so this is
hardening rather than a fix for observed behaviour.
* fix(agents): parse the retry delay at a fixed width
strconv.Atoi parses into the native int, so on the 32-bit targets we ship
(linux/386, windows/386, three ARM variants) a delay above MaxInt32 seconds
overflowed and became unspecified instead of being capped. No provider sends a
68-year delay, so this is not user-visible, but the overflow tests asserted the
cap and would have failed on those architectures, where tests never run.
* fix(plugins): anchor the retry_later regex to a word boundary
Prevents a superstring like useragent(retry_later) from matching the
agent capability token.
709 lines
29 KiB
Go
709 lines
29 KiB
Go
package lastfm
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import (
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"bytes"
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"context"
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"errors"
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"io"
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"net/http"
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"net/url"
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"os"
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"strconv"
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"time"
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"github.com/navidrome/navidrome/conf"
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"github.com/navidrome/navidrome/conf/configtest"
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"github.com/navidrome/navidrome/core/agents"
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"github.com/navidrome/navidrome/core/scrobbler"
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"github.com/navidrome/navidrome/model"
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"github.com/navidrome/navidrome/tests"
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. "github.com/onsi/ginkgo/v2"
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. "github.com/onsi/gomega"
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)
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const (
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lastfmError3 = `{"error":3,"message":"Invalid Method - No method with that name in this package","links":[]}`
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lastfmError6 = `{"error":6,"message":"The artist you supplied could not be found","links":[]}`
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)
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var _ = Describe("lastfmAgent", func() {
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var ds model.DataStore
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var ctx context.Context
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BeforeEach(func() {
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ds = &tests.MockDataStore{}
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ctx = context.Background()
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DeferCleanup(configtest.SetupConfig())
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conf.Server.LastFM.Enabled = true
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conf.Server.LastFM.ApiKey = "123"
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conf.Server.LastFM.Secret = "secret"
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})
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Describe("lastFMConstructor", func() {
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When("Agent is properly configured", func() {
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It("uses configured api key and languages", func() {
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conf.Server.LastFM.Languages = []string{"pt", "en"}
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agent := lastFMConstructor(ds)
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Expect(agent.apiKey).To(Equal("123"))
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Expect(agent.secret).To(Equal("secret"))
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Expect(agent.languages).To(Equal([]string{"pt", "en"}))
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})
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})
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When("Agent is disabled", func() {
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It("returns nil", func() {
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conf.Server.LastFM.Enabled = false
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Expect(lastFMConstructor(ds)).To(BeNil())
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})
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})
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When("ApiKey is empty", func() {
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It("returns nil", func() {
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conf.Server.LastFM.ApiKey = ""
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Expect(lastFMConstructor(ds)).To(BeNil())
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})
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})
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When("Secret is empty", func() {
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It("returns nil", func() {
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conf.Server.LastFM.Secret = ""
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Expect(lastFMConstructor(ds)).To(BeNil())
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})
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})
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})
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Describe("GetArtistBiography", func() {
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var agent *lastfmAgent
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var httpClient *tests.FakeHttpClient
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BeforeEach(func() {
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httpClient = &tests.FakeHttpClient{}
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client := newClient("API_KEY", "SECRET", httpClient)
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agent = lastFMConstructor(ds)
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agent.client = client
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})
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It("returns the biography", func() {
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f, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
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httpClient.Res = http.Response{Body: f, StatusCode: 200}
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Expect(agent.GetArtistBiography(ctx, "123", "U2", "")).To(Equal("U2 é uma das mais importantes bandas de rock de todos os tempos. Formada em 1976 em Dublin, composta por Bono (vocalista e guitarrista), The Edge (guitarrista, pianista e backing vocal), Adam Clayton (baixista), Larry Mullen, Jr. (baterista e percussionista).\n\nDesde a década de 80, U2 é uma das bandas mais populares no mundo. Seus shows são únicos e um verdadeiro festival de efeitos especiais, além de serem um dos que mais arrecadam anualmente."))
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Expect(httpClient.RequestCount).To(Equal(1))
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Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
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})
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It("returns an error if Last.fm call fails", func() {
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httpClient.Err = errors.New("error")
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_, err := agent.GetArtistBiography(ctx, "123", "U2", "")
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Expect(err).To(HaveOccurred())
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Expect(httpClient.RequestCount).To(Equal(1))
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Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
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})
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It("returns an error if Last.fm call returns an error", func() {
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httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError3)), StatusCode: 200}
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_, err := agent.GetArtistBiography(ctx, "123", "U2", "")
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Expect(err).To(HaveOccurred())
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Expect(httpClient.RequestCount).To(Equal(1))
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Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
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})
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It("returns ErrRetryLater on error 29 (rate limit exceeded)", func() {
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httpClient.Res = http.Response{
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Body: io.NopCloser(bytes.NewBufferString(`{"error":29,"message":"Rate limit exceeded"}`)),
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StatusCode: 200,
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}
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_, err := agent.GetArtistBiography(ctx, "123", "U2", "")
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Expect(errors.Is(err, agents.ErrRetryLater)).To(BeTrue())
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})
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})
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Describe("Language Fallback", func() {
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Describe("GetArtistBiography", func() {
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var agent *lastfmAgent
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var httpClient *langAwareHttpClient
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BeforeEach(func() {
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httpClient = newLangAwareHttpClient()
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})
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It("returns content in first language when available (1 API call)", func() {
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conf.Server.LastFM.Languages = []string{"pt", "en"}
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agent = lastFMConstructor(ds)
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agent.client = newClient("API_KEY", "SECRET", httpClient)
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// Portuguese biography available
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f, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
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httpClient.responses["pt"] = http.Response{Body: f, StatusCode: 200}
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bio, err := agent.GetArtistBiography(ctx, "123", "U2", "")
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Expect(err).ToNot(HaveOccurred())
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Expect(bio).To(ContainSubstring("U2 é uma das mais importantes bandas de rock"))
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Expect(httpClient.requestCount).To(Equal(1))
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Expect(httpClient.requests[0].URL.Query().Get("lang")).To(Equal("pt"))
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})
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It("falls back to second language when first returns empty (2 API calls)", func() {
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conf.Server.LastFM.Languages = []string{"ja", "en"}
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agent = lastFMConstructor(ds)
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agent.client = newClient("API_KEY", "SECRET", httpClient)
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// Japanese returns empty/ignored biography (actual Last.fm response with just "Read more" link)
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fJa, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.empty.json")
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httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
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// English returns full biography
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fEn, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.en.json")
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httpClient.responses["en"] = http.Response{Body: fEn, StatusCode: 200}
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bio, err := agent.GetArtistBiography(ctx, "123", "Legião Urbana", "")
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Expect(err).ToNot(HaveOccurred())
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Expect(bio).To(ContainSubstring("Legião Urbana was a Brazilian post-punk band"))
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Expect(httpClient.requestCount).To(Equal(2))
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Expect(httpClient.requests[0].URL.Query().Get("lang")).To(Equal("ja"))
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Expect(httpClient.requests[1].URL.Query().Get("lang")).To(Equal("en"))
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})
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It("returns ErrNotFound when all languages return empty", func() {
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conf.Server.LastFM.Languages = []string{"ja", "xx"}
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agent = lastFMConstructor(ds)
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agent.client = newClient("API_KEY", "SECRET", httpClient)
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// Both languages return empty/ignored biography (using actual Last.fm response format)
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fJa, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.empty.json")
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httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
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// Second language also returns empty
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fXx, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.empty.json")
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httpClient.responses["xx"] = http.Response{Body: fXx, StatusCode: 200}
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_, err := agent.GetArtistBiography(ctx, "123", "Legião Urbana", "")
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Expect(err).To(MatchError(agents.ErrNotFound))
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Expect(httpClient.requestCount).To(Equal(2))
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})
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})
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Describe("GetAlbumInfo", func() {
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var agent *lastfmAgent
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var httpClient *langAwareHttpClient
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BeforeEach(func() {
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httpClient = newLangAwareHttpClient()
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})
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It("falls back to second language when first returns empty description (2 API calls)", func() {
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conf.Server.LastFM.Languages = []string{"ja", "en"}
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agent = lastFMConstructor(ds)
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agent.client = newClient("API_KEY", "SECRET", httpClient)
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// Japanese returns album without wiki/description (actual Last.fm response)
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fJa, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty.json")
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httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
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// English returns album with description
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fEn, _ := os.Open("tests/fixtures/lastfm.album.getinfo.en.json")
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httpClient.responses["en"] = http.Response{Body: fEn, StatusCode: 200}
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albumInfo, err := agent.GetAlbumInfo(ctx, "Dois", "Legião Urbana", "")
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Expect(err).ToNot(HaveOccurred())
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Expect(albumInfo.Name).To(Equal("Dois"))
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Expect(albumInfo.Description).To(ContainSubstring("segundo álbum de estúdio"))
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Expect(httpClient.requestCount).To(Equal(2))
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Expect(httpClient.requests[0].URL.Query().Get("lang")).To(Equal("ja"))
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Expect(httpClient.requests[1].URL.Query().Get("lang")).To(Equal("en"))
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})
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It("returns album without description when all languages return empty", func() {
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conf.Server.LastFM.Languages = []string{"ja", "xx"}
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agent = lastFMConstructor(ds)
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agent.client = newClient("API_KEY", "SECRET", httpClient)
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// Both languages return album without description
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fJa, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty.json")
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httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
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fXx, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty.json")
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httpClient.responses["xx"] = http.Response{Body: fXx, StatusCode: 200}
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albumInfo, err := agent.GetAlbumInfo(ctx, "Dois", "Legião Urbana", "")
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Expect(err).ToNot(HaveOccurred())
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Expect(albumInfo.Name).To(Equal("Dois"))
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Expect(albumInfo.Description).To(BeEmpty())
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Expect(httpClient.requestCount).To(Equal(2))
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})
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})
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})
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Describe("GetSimilarArtists", func() {
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var agent *lastfmAgent
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var httpClient *tests.FakeHttpClient
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BeforeEach(func() {
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httpClient = &tests.FakeHttpClient{}
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client := newClient("API_KEY", "SECRET", httpClient)
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agent = lastFMConstructor(ds)
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agent.client = client
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})
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It("returns similar artists", func() {
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f, _ := os.Open("tests/fixtures/lastfm.artist.getsimilar.json")
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httpClient.Res = http.Response{Body: f, StatusCode: 200}
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Expect(agent.GetSimilarArtists(ctx, "123", "U2", "", 2)).To(Equal([]agents.Artist{
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{Name: "Passengers", MBID: "e110c11f-1c94-4471-a350-c38f46b29389"},
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{Name: "INXS", MBID: "481bf5f9-2e7c-4c44-b08a-05b32bc7c00d"},
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}))
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Expect(httpClient.RequestCount).To(Equal(1))
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Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
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})
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It("returns an error if Last.fm call fails", func() {
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httpClient.Err = errors.New("error")
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_, err := agent.GetSimilarArtists(ctx, "123", "U2", "", 2)
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Expect(err).To(HaveOccurred())
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Expect(httpClient.RequestCount).To(Equal(1))
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Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
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})
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It("returns an error if Last.fm call returns an error", func() {
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httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError3)), StatusCode: 200}
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_, err := agent.GetSimilarArtists(ctx, "123", "U2", "", 2)
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Expect(err).To(HaveOccurred())
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Expect(httpClient.RequestCount).To(Equal(1))
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Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
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})
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})
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Describe("GetArtistTopSongs", func() {
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var agent *lastfmAgent
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var httpClient *tests.FakeHttpClient
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BeforeEach(func() {
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httpClient = &tests.FakeHttpClient{}
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client := newClient("API_KEY", "SECRET", httpClient)
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|
agent = lastFMConstructor(ds)
|
|
agent.client = client
|
|
})
|
|
|
|
It("returns top songs", func() {
|
|
f, _ := os.Open("tests/fixtures/lastfm.artist.gettoptracks.json")
|
|
httpClient.Res = http.Response{Body: f, StatusCode: 200}
|
|
Expect(agent.GetArtistTopSongs(ctx, "123", "U2", "", 2)).To(Equal([]agents.Song{
|
|
{Name: "Beautiful Day", MBID: "f7f264d0-a89b-4682-9cd7-a4e7c37637af"},
|
|
{Name: "With or Without You", MBID: "6b9a509f-6907-4a6e-9345-2f12da09ba4b"},
|
|
}))
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
|
|
})
|
|
|
|
It("returns an error if Last.fm call fails", func() {
|
|
httpClient.Err = errors.New("error")
|
|
_, err := agent.GetArtistTopSongs(ctx, "123", "U2", "", 2)
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
|
|
})
|
|
|
|
It("returns an error if Last.fm call returns an error", func() {
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError3)), StatusCode: 200}
|
|
_, err := agent.GetArtistTopSongs(ctx, "123", "U2", "", 2)
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
|
|
})
|
|
})
|
|
|
|
Describe("GetSimilarSongsByTrack", func() {
|
|
var agent *lastfmAgent
|
|
var httpClient *tests.FakeHttpClient
|
|
BeforeEach(func() {
|
|
httpClient = &tests.FakeHttpClient{}
|
|
client := newClient("API_KEY", "SECRET", httpClient)
|
|
agent = lastFMConstructor(ds)
|
|
agent.client = client
|
|
})
|
|
|
|
It("returns similar songs", func() {
|
|
f, _ := os.Open("tests/fixtures/lastfm.track.getsimilar.json")
|
|
httpClient.Res = http.Response{Body: f, StatusCode: 200}
|
|
Expect(agent.GetSimilarSongsByTrack(ctx, "123", "Just Can't Get Enough", "Depeche Mode", "", 5)).To(Equal([]agents.Song{
|
|
{Name: "Dreaming of Me", MBID: "027b553e-7c74-3ed4-a95e-1d4fea51f174", Artists: []agents.Artist{{Name: "Depeche Mode", MBID: "8538e728-ca0b-4321-b7e5-cff6565dd4c0"}}},
|
|
{Name: "Everything Counts", MBID: "5a5a3ca4-bdb8-4641-a674-9b54b9b319a6", Artists: []agents.Artist{{Name: "Depeche Mode", MBID: "8538e728-ca0b-4321-b7e5-cff6565dd4c0"}}},
|
|
{Name: "Don't You Want Me", MBID: "", Artists: []agents.Artist{{Name: "The Human League", MBID: "7adaabfb-acfb-47bc-8c7c-59471c2f0db8"}}},
|
|
{Name: "Tainted Love", MBID: "", Artists: []agents.Artist{{Name: "Soft Cell", MBID: "7fb50287-029d-47cc-825a-235ca28024b2"}}},
|
|
{Name: "Blue Monday", MBID: "727e84c6-1b56-31dd-a958-a5f46305cec0", Artists: []agents.Artist{{Name: "New Order", MBID: "f1106b17-dcbb-45f6-b938-199ccfab50cc"}}},
|
|
}))
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("track")).To(Equal("Just Can't Get Enough"))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("Depeche Mode"))
|
|
})
|
|
|
|
It("returns ErrNotFound when no similar songs found", func() {
|
|
f, _ := os.Open("tests/fixtures/lastfm.track.getsimilar.unknown.json")
|
|
httpClient.Res = http.Response{Body: f, StatusCode: 200}
|
|
_, err := agent.GetSimilarSongsByTrack(ctx, "123", "UnknownTrack", "UnknownArtist", "", 3)
|
|
Expect(err).To(MatchError(agents.ErrNotFound))
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
})
|
|
|
|
It("returns an error if Last.fm call fails", func() {
|
|
httpClient.Err = errors.New("error")
|
|
_, err := agent.GetSimilarSongsByTrack(ctx, "123", "Believe", "Cher", "", 3)
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
})
|
|
|
|
It("returns an error if Last.fm call returns an error", func() {
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError3)), StatusCode: 200}
|
|
_, err := agent.GetSimilarSongsByTrack(ctx, "123", "Believe", "Cher", "", 3)
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
})
|
|
})
|
|
|
|
Describe("Scrobbling", func() {
|
|
var agent *lastfmAgent
|
|
var httpClient *tests.FakeHttpClient
|
|
var track *model.MediaFile
|
|
BeforeEach(func() {
|
|
_ = ds.UserProps(ctx).Put("user-1", sessionKeyProperty, "SK-1")
|
|
httpClient = &tests.FakeHttpClient{}
|
|
client := newClient("API_KEY", "SECRET", httpClient)
|
|
agent = lastFMConstructor(ds)
|
|
agent.client = client
|
|
track = &model.MediaFile{
|
|
ID: "123",
|
|
Title: "Track Title",
|
|
Album: "Track Album",
|
|
Artist: "Track Artist",
|
|
AlbumArtist: "Track AlbumArtist",
|
|
TrackNumber: 1,
|
|
Duration: 180,
|
|
MbzRecordingID: "mbz-123",
|
|
Participants: map[model.Role]model.ParticipantList{
|
|
model.RoleArtist: []model.Participant{
|
|
{Artist: model.Artist{ID: "ar-1", Name: "First Artist"}},
|
|
{Artist: model.Artist{ID: "ar-2", Name: "Second Artist"}},
|
|
},
|
|
model.RoleAlbumArtist: []model.Participant{
|
|
{Artist: model.Artist{ID: "ar-1", Name: "First Album Artist"}},
|
|
{Artist: model.Artist{ID: "ar-2", Name: "Second Album Artist"}},
|
|
},
|
|
},
|
|
}
|
|
})
|
|
|
|
Describe("NowPlaying", func() {
|
|
It("calls Last.fm with correct params", func() {
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString("{}")), StatusCode: 200}
|
|
|
|
err := agent.NowPlaying(ctx, "user-1", track, 0)
|
|
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(httpClient.SavedRequest.Method).To(Equal(http.MethodPost))
|
|
body, _ := io.ReadAll(httpClient.SavedRequest.Body)
|
|
sentParams, _ := url.ParseQuery(string(body))
|
|
Expect(sentParams.Get("method")).To(Equal("track.updateNowPlaying"))
|
|
Expect(sentParams.Get("sk")).To(Equal("SK-1"))
|
|
Expect(sentParams.Get("track")).To(Equal(track.Title))
|
|
Expect(sentParams.Get("album")).To(Equal(track.Album))
|
|
Expect(sentParams.Get("artist")).To(Equal(track.Artist))
|
|
Expect(sentParams.Get("albumArtist")).To(Equal(track.AlbumArtist))
|
|
Expect(sentParams.Get("trackNumber")).To(Equal(strconv.Itoa(track.TrackNumber)))
|
|
Expect(sentParams.Get("duration")).To(Equal(strconv.FormatFloat(float64(track.Duration), 'G', -1, 32)))
|
|
Expect(sentParams.Get("mbid")).To(Equal(track.MbzRecordingID))
|
|
})
|
|
|
|
It("returns ErrNotAuthorized if user is not linked", func() {
|
|
err := agent.NowPlaying(ctx, "user-2", track, 0)
|
|
Expect(err).To(MatchError(scrobbler.ErrNotAuthorized))
|
|
})
|
|
|
|
When("ScrobbleFirstArtistOnly is true", func() {
|
|
BeforeEach(func() {
|
|
conf.Server.LastFM.ScrobbleFirstArtistOnly = true
|
|
})
|
|
|
|
It("uses only the first artist", func() {
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString("{}")), StatusCode: 200}
|
|
|
|
err := agent.NowPlaying(ctx, "user-1", track, 0)
|
|
|
|
Expect(err).ToNot(HaveOccurred())
|
|
body, _ := io.ReadAll(httpClient.SavedRequest.Body)
|
|
sentParams, _ := url.ParseQuery(string(body))
|
|
Expect(sentParams.Get("artist")).To(Equal("First Artist"))
|
|
Expect(sentParams.Get("albumArtist")).To(Equal("First Album Artist"))
|
|
})
|
|
})
|
|
})
|
|
|
|
Describe("scrobble", func() {
|
|
It("calls Last.fm with correct params", func() {
|
|
ts := time.Now()
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString("{}")), StatusCode: 200}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: ts})
|
|
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(httpClient.SavedRequest.Method).To(Equal(http.MethodPost))
|
|
body, _ := io.ReadAll(httpClient.SavedRequest.Body)
|
|
sentParams, _ := url.ParseQuery(string(body))
|
|
Expect(sentParams.Get("method")).To(Equal("track.scrobble"))
|
|
Expect(sentParams.Get("sk")).To(Equal("SK-1"))
|
|
Expect(sentParams.Get("track")).To(Equal(track.Title))
|
|
Expect(sentParams.Get("album")).To(Equal(track.Album))
|
|
Expect(sentParams.Get("artist")).To(Equal(track.Artist))
|
|
Expect(sentParams.Get("albumArtist")).To(Equal(track.AlbumArtist))
|
|
Expect(sentParams.Get("trackNumber")).To(Equal(strconv.Itoa(track.TrackNumber)))
|
|
Expect(sentParams.Get("duration")).To(Equal(strconv.FormatFloat(float64(track.Duration), 'G', -1, 32)))
|
|
Expect(sentParams.Get("mbid")).To(Equal(track.MbzRecordingID))
|
|
Expect(sentParams.Get("timestamp")).To(Equal(strconv.FormatInt(ts.Unix(), 10)))
|
|
})
|
|
|
|
When("ScrobbleFirstArtistOnly is true", func() {
|
|
BeforeEach(func() {
|
|
conf.Server.LastFM.ScrobbleFirstArtistOnly = true
|
|
})
|
|
|
|
It("uses only the first artist", func() {
|
|
ts := time.Now()
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString("{}")), StatusCode: 200}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: ts})
|
|
|
|
Expect(err).ToNot(HaveOccurred())
|
|
body, _ := io.ReadAll(httpClient.SavedRequest.Body)
|
|
sentParams, _ := url.ParseQuery(string(body))
|
|
Expect(sentParams.Get("artist")).To(Equal("First Artist"))
|
|
Expect(sentParams.Get("albumArtist")).To(Equal("First Album Artist"))
|
|
})
|
|
})
|
|
|
|
It("skips songs with less than 31 seconds", func() {
|
|
track.Duration = 29
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString("{}")), StatusCode: 200}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(httpClient.SavedRequest).To(BeNil())
|
|
})
|
|
|
|
It("returns ErrNotAuthorized if user is not linked", func() {
|
|
err := agent.Scrobble(ctx, "user-2", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
Expect(err).To(MatchError(scrobbler.ErrNotAuthorized))
|
|
})
|
|
|
|
It("returns ErrRetryLater on error 11", func() {
|
|
httpClient.Res = http.Response{
|
|
Body: io.NopCloser(bytes.NewBufferString(`{"error":11,"message":"Service Offline - This service is temporarily offline. Try again later."}`)),
|
|
StatusCode: 400,
|
|
}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
Expect(err).To(MatchError(scrobbler.ErrRetryLater))
|
|
})
|
|
|
|
It("returns ErrRetryLater on error 16", func() {
|
|
httpClient.Res = http.Response{
|
|
Body: io.NopCloser(bytes.NewBufferString(`{"error":16,"message":"There was a temporary error processing your request. Please try again"}`)),
|
|
StatusCode: 400,
|
|
}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
Expect(err).To(MatchError(scrobbler.ErrRetryLater))
|
|
})
|
|
|
|
It("returns ErrRetryLater on error 29 (rate limit exceeded)", func() {
|
|
httpClient.Res = http.Response{
|
|
Body: io.NopCloser(bytes.NewBufferString(`{"error":29,"message":"Rate limit exceeded"}`)),
|
|
StatusCode: 200,
|
|
}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
Expect(errors.Is(err, scrobbler.ErrRetryLater)).To(BeTrue())
|
|
})
|
|
|
|
It("returns ErrRetryLater on http errors", func() {
|
|
httpClient.Res = http.Response{
|
|
Body: io.NopCloser(bytes.NewBufferString(`internal server error`)),
|
|
StatusCode: 500,
|
|
}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
Expect(err).To(MatchError(scrobbler.ErrRetryLater))
|
|
})
|
|
|
|
It("returns ErrUnrecoverable on other errors", func() {
|
|
httpClient.Res = http.Response{
|
|
Body: io.NopCloser(bytes.NewBufferString(`{"error":8,"message":"Operation failed - Something else went wrong"}`)),
|
|
StatusCode: 400,
|
|
}
|
|
|
|
err := agent.Scrobble(ctx, "user-1", scrobbler.Scrobble{MediaFile: *track, TimeStamp: time.Now()})
|
|
Expect(err).To(MatchError(scrobbler.ErrUnrecoverable))
|
|
})
|
|
})
|
|
})
|
|
|
|
Describe("GetAlbumInfo", func() {
|
|
var agent *lastfmAgent
|
|
var httpClient *tests.FakeHttpClient
|
|
BeforeEach(func() {
|
|
httpClient = &tests.FakeHttpClient{}
|
|
client := newClient("API_KEY", "SECRET", httpClient)
|
|
agent = lastFMConstructor(ds)
|
|
agent.client = client
|
|
})
|
|
|
|
It("returns the biography", func() {
|
|
f, _ := os.Open("tests/fixtures/lastfm.album.getinfo.json")
|
|
httpClient.Res = http.Response{Body: f, StatusCode: 200}
|
|
Expect(agent.GetAlbumInfo(ctx, "Believe", "Cher", "03c91c40-49a6-44a7-90e7-a700edf97a62")).To(Equal(&agents.AlbumInfo{
|
|
Name: "Believe",
|
|
MBID: "03c91c40-49a6-44a7-90e7-a700edf97a62",
|
|
Description: "Believe is the twenty-third studio album by American singer-actress Cher, released on November 10, 1998 by Warner Bros. Records. The RIAA certified it Quadruple Platinum on December 23, 1999, recognizing four million shipments in the United States; Worldwide, the album has sold more than 20 million copies, making it the biggest-selling album of her career. In 1999 the album received three Grammy Awards nominations including \"Record of the Year\", \"Best Pop Album\" and winning \"Best Dance Recording\" for the single \"Believe\". It was released by Warner Bros. Records at the end of 1998. The album was executive produced by Rob",
|
|
URL: "https://www.last.fm/music/Cher/Believe",
|
|
}))
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
// MBID is deliberately not sent — album.getInfo matches on name+artist only.
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("mbid")).To(BeEmpty())
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("album")).To(Equal("Believe"))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("Cher"))
|
|
})
|
|
|
|
It("returns empty images if no images are available", func() {
|
|
f, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty_urls.json")
|
|
httpClient.Res = http.Response{Body: f, StatusCode: 200}
|
|
Expect(agent.GetAlbumInfo(ctx, "The Definitive Less Damage And More Joy", "The Jesus and Mary Chain", "")).To(Equal(&agents.AlbumInfo{
|
|
Name: "The Definitive Less Damage And More Joy",
|
|
URL: "https://www.last.fm/music/The+Jesus+and+Mary+Chain/The+Definitive+Less+Damage+And+More+Joy",
|
|
}))
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("album")).To(Equal("The Definitive Less Damage And More Joy"))
|
|
})
|
|
|
|
It("returns an error if Last.fm call fails", func() {
|
|
httpClient.Err = errors.New("error")
|
|
_, err := agent.GetAlbumInfo(ctx, "123", "U2", "mbid-1234")
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("mbid")).To(BeEmpty())
|
|
})
|
|
|
|
It("returns an error if Last.fm call returns an error", func() {
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError3)), StatusCode: 200}
|
|
_, err := agent.GetAlbumInfo(ctx, "123", "U2", "mbid-1234")
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("mbid")).To(BeEmpty())
|
|
})
|
|
|
|
It("returns an error when Last.fm returns an error 6 (album not found)", func() {
|
|
httpClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError6)), StatusCode: 200}
|
|
_, err := agent.GetAlbumInfo(ctx, "123", "U2", "mbid-1234")
|
|
Expect(err).To(HaveOccurred())
|
|
// A definitive not-found must satisfy the sentinel, or the artwork worker retries it.
|
|
Expect(errors.Is(err, agents.ErrNotFound)).To(BeTrue())
|
|
Expect(httpClient.RequestCount).To(Equal(1))
|
|
Expect(httpClient.SavedRequest.URL.Query().Get("mbid")).To(BeEmpty())
|
|
})
|
|
})
|
|
|
|
Describe("GetArtistImages", func() {
|
|
var agent *lastfmAgent
|
|
var apiClient *tests.FakeHttpClient
|
|
var httpClient *tests.FakeHttpClient
|
|
|
|
BeforeEach(func() {
|
|
apiClient = &tests.FakeHttpClient{}
|
|
httpClient = &tests.FakeHttpClient{}
|
|
client := newClient("API_KEY", "SECRET", apiClient)
|
|
agent = lastFMConstructor(ds)
|
|
agent.client = client
|
|
agent.httpClient = httpClient
|
|
})
|
|
|
|
It("returns the artist image from the page", func() {
|
|
fApi, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
|
|
apiClient.Res = http.Response{Body: fApi, StatusCode: 200}
|
|
|
|
fScraper, _ := os.Open("tests/fixtures/lastfm.artist.page.html")
|
|
httpClient.Res = http.Response{Body: fScraper, StatusCode: 200}
|
|
|
|
images, err := agent.GetArtistImages(ctx, "123", "U2", "")
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(images).To(HaveLen(1))
|
|
Expect(images[0].URL).To(Equal("https://lastfm.freetls.fastly.net/i/u/ar0/818148bf682d429dc21b59a73ef6f68e.png"))
|
|
})
|
|
|
|
It("maps a Last.fm error 6 (artist not found) to the shared not-found sentinel", func() {
|
|
apiClient.Res = http.Response{Body: io.NopCloser(bytes.NewBufferString(lastfmError6)), StatusCode: 200}
|
|
_, err := agent.GetArtistImages(ctx, "123", "Nonexistent Artist", "")
|
|
// Not a fault: runs of missing artists must not trip the worker's circuit breaker.
|
|
Expect(errors.Is(err, agents.ErrNotFound)).To(BeTrue())
|
|
})
|
|
|
|
It("returns empty list if image is the ignored default image", func() {
|
|
fApi, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
|
|
apiClient.Res = http.Response{Body: fApi, StatusCode: 200}
|
|
|
|
fScraper, _ := os.Open("tests/fixtures/lastfm.artist.page.ignored.html")
|
|
httpClient.Res = http.Response{Body: fScraper, StatusCode: 200}
|
|
|
|
images, err := agent.GetArtistImages(ctx, "123", "U2", "")
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(images).To(BeEmpty())
|
|
})
|
|
|
|
It("returns empty list if page has no meta tags", func() {
|
|
fApi, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
|
|
apiClient.Res = http.Response{Body: fApi, StatusCode: 200}
|
|
|
|
fScraper, _ := os.Open("tests/fixtures/lastfm.artist.page.no_meta.html")
|
|
httpClient.Res = http.Response{Body: fScraper, StatusCode: 200}
|
|
|
|
images, err := agent.GetArtistImages(ctx, "123", "U2", "")
|
|
Expect(err).ToNot(HaveOccurred())
|
|
Expect(images).To(BeEmpty())
|
|
})
|
|
|
|
It("returns error if API call fails", func() {
|
|
apiClient.Err = errors.New("api error")
|
|
_, err := agent.GetArtistImages(ctx, "123", "U2", "")
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.Error()).To(ContainSubstring("get artist info"))
|
|
})
|
|
|
|
It("returns error if scraper call fails", func() {
|
|
fApi, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
|
|
apiClient.Res = http.Response{Body: fApi, StatusCode: 200}
|
|
|
|
httpClient.Err = errors.New("scraper error")
|
|
_, err := agent.GetArtistImages(ctx, "123", "U2", "")
|
|
Expect(err).To(HaveOccurred())
|
|
Expect(err.Error()).To(ContainSubstring("get artist url"))
|
|
})
|
|
})
|
|
})
|
|
|
|
// langAwareHttpClient is a mock HTTP client that returns different responses based on the lang parameter
|
|
type langAwareHttpClient struct {
|
|
responses map[string]http.Response
|
|
requests []*http.Request
|
|
requestCount int
|
|
}
|
|
|
|
func newLangAwareHttpClient() *langAwareHttpClient {
|
|
return &langAwareHttpClient{
|
|
responses: make(map[string]http.Response),
|
|
requests: make([]*http.Request, 0),
|
|
}
|
|
}
|
|
|
|
func (c *langAwareHttpClient) Do(req *http.Request) (*http.Response, error) {
|
|
c.requestCount++
|
|
c.requests = append(c.requests, req)
|
|
lang := req.URL.Query().Get("lang")
|
|
if resp, ok := c.responses[lang]; ok {
|
|
return &resp, nil
|
|
}
|
|
// Return default empty response if no specific response is configured
|
|
return &http.Response{
|
|
StatusCode: 200,
|
|
Body: io.NopCloser(bytes.NewBufferString(`{}`)),
|
|
}, nil
|
|
}
|