package lastfm
import (
"bytes"
"context"
"errors"
"io"
"net/http"
"net/url"
"os"
"strconv"
"time"
"github.com/navidrome/navidrome/conf"
"github.com/navidrome/navidrome/conf/configtest"
"github.com/navidrome/navidrome/core/agents"
"github.com/navidrome/navidrome/core/scrobbler"
"github.com/navidrome/navidrome/model"
"github.com/navidrome/navidrome/tests"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
const (
lastfmError3 = `{"error":3,"message":"Invalid Method - No method with that name in this package","links":[]}`
lastfmError6 = `{"error":6,"message":"The artist you supplied could not be found","links":[]}`
)
var _ = Describe("lastfmAgent", func() {
var ds model.DataStore
var ctx context.Context
BeforeEach(func() {
ds = &tests.MockDataStore{}
ctx = context.Background()
DeferCleanup(configtest.SetupConfig())
conf.Server.LastFM.Enabled = true
conf.Server.LastFM.ApiKey = "123"
conf.Server.LastFM.Secret = "secret"
})
Describe("lastFMConstructor", func() {
When("Agent is properly configured", func() {
It("uses configured api key and languages", func() {
conf.Server.LastFM.Languages = []string{"pt", "en"}
agent := lastFMConstructor(ds)
Expect(agent.apiKey).To(Equal("123"))
Expect(agent.secret).To(Equal("secret"))
Expect(agent.languages).To(Equal([]string{"pt", "en"}))
})
})
When("Agent is disabled", func() {
It("returns nil", func() {
conf.Server.LastFM.Enabled = false
Expect(lastFMConstructor(ds)).To(BeNil())
})
})
When("ApiKey is empty", func() {
It("returns nil", func() {
conf.Server.LastFM.ApiKey = ""
Expect(lastFMConstructor(ds)).To(BeNil())
})
})
When("Secret is empty", func() {
It("returns nil", func() {
conf.Server.LastFM.Secret = ""
Expect(lastFMConstructor(ds)).To(BeNil())
})
})
})
Describe("GetArtistBiography", 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.artist.getinfo.json")
httpClient.Res = http.Response{Body: f, StatusCode: 200}
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."))
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.GetArtistBiography(ctx, "123", "U2", "")
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.GetArtistBiography(ctx, "123", "U2", "")
Expect(err).To(HaveOccurred())
Expect(httpClient.RequestCount).To(Equal(1))
Expect(httpClient.SavedRequest.URL.Query().Get("artist")).To(Equal("U2"))
})
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.GetArtistBiography(ctx, "123", "U2", "")
Expect(errors.Is(err, agents.ErrRetryLater)).To(BeTrue())
})
})
Describe("Language Fallback", func() {
Describe("GetArtistBiography", func() {
var agent *lastfmAgent
var httpClient *langAwareHttpClient
BeforeEach(func() {
httpClient = newLangAwareHttpClient()
})
It("returns content in first language when available (1 API call)", func() {
conf.Server.LastFM.Languages = []string{"pt", "en"}
agent = lastFMConstructor(ds)
agent.client = newClient("API_KEY", "SECRET", httpClient)
f, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.json")
httpClient.responses["pt"] = http.Response{Body: f, StatusCode: 200}
bio, err := agent.GetArtistBiography(ctx, "123", "U2", "")
Expect(err).ToNot(HaveOccurred())
Expect(bio).To(ContainSubstring("U2 é uma das mais importantes bandas de rock"))
Expect(httpClient.requestCount).To(Equal(1))
Expect(httpClient.requests[0].URL.Query().Get("lang")).To(Equal("pt"))
})
It("falls back to second language when first returns empty (2 API calls)", func() {
conf.Server.LastFM.Languages = []string{"ja", "en"}
agent = lastFMConstructor(ds)
agent.client = newClient("API_KEY", "SECRET", httpClient)
fJa, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.empty.json")
httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
fEn, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.en.json")
httpClient.responses["en"] = http.Response{Body: fEn, StatusCode: 200}
bio, err := agent.GetArtistBiography(ctx, "123", "Legião Urbana", "")
Expect(err).ToNot(HaveOccurred())
Expect(bio).To(ContainSubstring("Legião Urbana was a Brazilian post-punk band"))
Expect(httpClient.requestCount).To(Equal(2))
Expect(httpClient.requests[0].URL.Query().Get("lang")).To(Equal("ja"))
Expect(httpClient.requests[1].URL.Query().Get("lang")).To(Equal("en"))
})
It("returns ErrNotFound when all languages return empty", func() {
conf.Server.LastFM.Languages = []string{"ja", "xx"}
agent = lastFMConstructor(ds)
agent.client = newClient("API_KEY", "SECRET", httpClient)
fJa, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.empty.json")
httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
fXx, _ := os.Open("tests/fixtures/lastfm.artist.getinfo.empty.json")
httpClient.responses["xx"] = http.Response{Body: fXx, StatusCode: 200}
_, err := agent.GetArtistBiography(ctx, "123", "Legião Urbana", "")
Expect(err).To(MatchError(agents.ErrNotFound))
Expect(httpClient.requestCount).To(Equal(2))
})
})
Describe("GetAlbumInfo", func() {
var agent *lastfmAgent
var httpClient *langAwareHttpClient
BeforeEach(func() {
httpClient = newLangAwareHttpClient()
})
It("falls back to second language when first returns empty description (2 API calls)", func() {
conf.Server.LastFM.Languages = []string{"ja", "en"}
agent = lastFMConstructor(ds)
agent.client = newClient("API_KEY", "SECRET", httpClient)
fJa, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty.json")
httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
fEn, _ := os.Open("tests/fixtures/lastfm.album.getinfo.en.json")
httpClient.responses["en"] = http.Response{Body: fEn, StatusCode: 200}
albumInfo, err := agent.GetAlbumInfo(ctx, "Dois", "Legião Urbana", "")
Expect(err).ToNot(HaveOccurred())
Expect(albumInfo.Name).To(Equal("Dois"))
Expect(albumInfo.Description).To(ContainSubstring("segundo álbum de estúdio"))
Expect(httpClient.requestCount).To(Equal(2))
Expect(httpClient.requests[0].URL.Query().Get("lang")).To(Equal("ja"))
Expect(httpClient.requests[1].URL.Query().Get("lang")).To(Equal("en"))
})
It("returns album without description when all languages return empty", func() {
conf.Server.LastFM.Languages = []string{"ja", "xx"}
agent = lastFMConstructor(ds)
agent.client = newClient("API_KEY", "SECRET", httpClient)
fJa, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty.json")
httpClient.responses["ja"] = http.Response{Body: fJa, StatusCode: 200}
fXx, _ := os.Open("tests/fixtures/lastfm.album.getinfo.empty.json")
httpClient.responses["xx"] = http.Response{Body: fXx, StatusCode: 200}
albumInfo, err := agent.GetAlbumInfo(ctx, "Dois", "Legião Urbana", "")
Expect(err).ToNot(HaveOccurred())
Expect(albumInfo.Name).To(Equal("Dois"))
Expect(albumInfo.Description).To(BeEmpty())
Expect(httpClient.requestCount).To(Equal(2))
})
})
})
Describe("GetSimilarArtists", 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 artists", func() {
f, _ := os.Open("tests/fixtures/lastfm.artist.getsimilar.json")
httpClient.Res = http.Response{Body: f, StatusCode: 200}
Expect(agent.GetSimilarArtists(ctx, "123", "U2", "", 2)).To(Equal([]agents.Artist{
{Name: "Passengers", MBID: "e110c11f-1c94-4471-a350-c38f46b29389"},
{Name: "INXS", MBID: "481bf5f9-2e7c-4c44-b08a-05b32bc7c00d"},
}))
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.GetSimilarArtists(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.GetSimilarArtists(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("GetArtistTopSongs", 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 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().Put(ctx, "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))
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())
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", "")
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("errors when the 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}
_, err := agent.GetArtistImages(ctx, "123", "U2", "")
Expect(err).To(MatchError(errNoArtistPage))
})
It("errors when Last.fm serves a bot challenge 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.challenge.html")
httpClient.Res = http.Response{Body: fScraper, StatusCode: 200}
images, err := agent.GetArtistImages(ctx, "123", "U2", "")
Expect(err).To(MatchError(errNoArtistPage))
Expect(images).To(BeEmpty())
})
It("does not park the agent: the failure is not a retry-later", 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.challenge.html")
httpClient.Res = http.Response{Body: fScraper, StatusCode: 200}
_, err := agent.GetArtistImages(ctx, "123", "U2", "")
Expect(errors.Is(err, agents.ErrRetryLater)).To(BeFalse())
})
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"))
})
})
})
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 &http.Response{
StatusCode: 200,
Body: io.NopCloser(bytes.NewBufferString(`{}`)),
}, nil
}
