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Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| package youtube | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "context" | ||
| "encoding/json" | ||
| "errors" | ||
| "net/http" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/Chatterino/api/internal/logger" | ||
| "github.com/Chatterino/api/internal/staticresponse" | ||
| "github.com/Chatterino/api/pkg/cache" | ||
| "github.com/Chatterino/api/pkg/humanize" | ||
| "github.com/Chatterino/api/pkg/resolver" | ||
| youtubeAPI "google.golang.org/api/youtube/v3" | ||
| ) | ||
|
|
||
| type youtubePlaylistTooltipData struct { | ||
| Title string | ||
| Description string | ||
| Channel string | ||
| VideoCount string | ||
| PublishedAt string | ||
| } | ||
|
|
||
| type YouTubePlaylistLoader struct { | ||
| youtubeClient *youtubeAPI.Service | ||
| } | ||
|
|
||
| func getThumbnailUrl(thumbnailDetails *youtubeAPI.ThumbnailDetails) string { | ||
| if thumbnailDetails.Maxres != nil { | ||
| return thumbnailDetails.Maxres.Url | ||
| } | ||
| if thumbnailDetails.Default != nil { | ||
| return thumbnailDetails.Default.Url | ||
| } | ||
| return "" | ||
| } | ||
|
|
||
| func (r *YouTubePlaylistLoader) Load(ctx context.Context, playlistCacheKey string, req *http.Request) ([]byte, *int, *string, time.Duration, error) { | ||
| log := logger.FromContext(ctx) | ||
| log.Debugw("[YouTube] GET playlist", | ||
| "cacheKey", playlistCacheKey, | ||
| ) | ||
|
|
||
| playlistId, err := getPlaylistFromCacheKey(playlistCacheKey) | ||
| if err != nil { | ||
| return resolver.InternalServerErrorf("YouTube API playlist is invalid for key: %s", playlistCacheKey) | ||
| } | ||
|
|
||
| youtubePlaylistParts := []string{ | ||
| "snippet", | ||
| "contentDetails", | ||
| } | ||
|
|
||
| youtubeResponse, err := r.youtubeClient.Playlists.List(youtubePlaylistParts).Id(playlistId).Do() | ||
| if err != nil { | ||
| return resolver.InternalServerErrorf("YouTube API error: %s", err) | ||
| } | ||
|
|
||
| if len(youtubeResponse.Items) == 0 { | ||
| return staticresponse.NotFoundf("No YouTube playlist with the ID %s found", playlistId). | ||
| WithCacheDuration(24 * time.Hour). | ||
| Return() | ||
| } | ||
|
|
||
| if len(youtubeResponse.Items) > 1 { | ||
| return resolver.InternalServerErrorf("YouTube playlist response contained %d items", len(youtubeResponse.Items)) | ||
| } | ||
|
|
||
| youtubePlaylist := youtubeResponse.Items[0] | ||
|
|
||
| data := youtubePlaylistTooltipData{ | ||
| Title: youtubePlaylist.Snippet.Title, | ||
| Description: youtubePlaylist.Snippet.Description, | ||
| Channel: youtubePlaylist.Snippet.ChannelTitle, | ||
| VideoCount: humanize.NumberInt64(youtubePlaylist.ContentDetails.ItemCount), | ||
| PublishedAt: humanize.CreationDateRFC3339(youtubePlaylist.Snippet.PublishedAt), | ||
| } | ||
|
|
||
| var tooltip bytes.Buffer | ||
| if err := youtubePlaylistTooltipTemplate.Execute(&tooltip, data); err != nil { | ||
| return resolver.InternalServerErrorf("YouTube template error: %s", err.Error()) | ||
| } | ||
|
|
||
| statusCode := http.StatusOK | ||
| contentType := "application/json" | ||
|
|
||
| response := &resolver.Response{ | ||
| Status: statusCode, | ||
| Tooltip: tooltip.String(), | ||
| Thumbnail: getThumbnailUrl(youtubePlaylist.Snippet.Thumbnails), | ||
| } | ||
|
|
||
| payload, err := json.Marshal(response) | ||
| if err != nil { | ||
| return resolver.InternalServerErrorf("YouTube marshaling error: %s", err.Error()) | ||
| } | ||
|
|
||
| return payload, &statusCode, &contentType, cache.NoSpecialDur, nil | ||
| } | ||
|
|
||
| func getPlaylistFromCacheKey(cacheKey string) (string, error) { | ||
| splitKey := strings.Split(cacheKey, ":") | ||
|
|
||
| if len(splitKey) < 2 { | ||
| return "", errors.New("invalid playlist") | ||
| } | ||
|
|
||
| return splitKey[1], nil | ||
| } | ||
|
|
||
| func NewYouTubePlaylistLoader(youtubeClient *youtubeAPI.Service) *YouTubePlaylistLoader { | ||
| loader := &YouTubePlaylistLoader{ | ||
| youtubeClient: youtubeClient, | ||
| } | ||
|
|
||
| return loader | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| package youtube | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
| "net/url" | ||
| "regexp" | ||
|
|
||
| "github.com/Chatterino/api/internal/db" | ||
| "github.com/Chatterino/api/internal/logger" | ||
| "github.com/Chatterino/api/internal/staticresponse" | ||
| "github.com/Chatterino/api/pkg/cache" | ||
| "github.com/Chatterino/api/pkg/config" | ||
| "github.com/Chatterino/api/pkg/utils" | ||
| youtubeAPI "google.golang.org/api/youtube/v3" | ||
| ) | ||
|
|
||
| var youtubePlaylistRegex = regexp.MustCompile(`^/playlist$`) | ||
|
|
||
| type YouTubePlaylistResolver struct { | ||
| playlistCache cache.Cache | ||
| } | ||
|
|
||
| func (r *YouTubePlaylistResolver) Check(ctx context.Context, url *url.URL) (context.Context, bool) { | ||
| if !utils.IsSubdomainOf(url, "youtube.com") { | ||
| return ctx, false | ||
| } | ||
|
|
||
| q := url.Query() | ||
| if !q.Has("list") { | ||
| return ctx, false | ||
| } | ||
|
|
||
| matches := youtubePlaylistRegex.MatchString(url.Path) | ||
| return ctx, matches | ||
| } | ||
|
|
||
| func (r *YouTubePlaylistResolver) Run(ctx context.Context, url *url.URL, req *http.Request) (*cache.Response, error) { | ||
| log := logger.FromContext(ctx) | ||
|
|
||
| q := url.Query() | ||
|
|
||
| playlistId := q.Get("list") | ||
| if playlistId == "" { | ||
| log.Warnw("[YouTube] Failed to get playlist ID from url", | ||
| "url", url, | ||
| ) | ||
|
|
||
| return &staticresponse.RNoLinkInfoFound, nil | ||
| } | ||
|
|
||
| return r.playlistCache.Get(ctx, fmt.Sprintf("playlist:%s", playlistId), req) | ||
| } | ||
|
|
||
| func (r *YouTubePlaylistResolver) Name() string { | ||
| return "youtube:playlist" | ||
| } | ||
|
|
||
| func NewYouTubePlaylistResolver(ctx context.Context, cfg config.APIConfig, pool db.Pool, youtubeClient *youtubeAPI.Service) *YouTubePlaylistResolver { | ||
| loader := NewYouTubePlaylistLoader(youtubeClient) | ||
|
|
||
| r := &YouTubePlaylistResolver{ | ||
| playlistCache: cache.NewPostgreSQLCache( | ||
| ctx, cfg, pool, cache.NewPrefixKeyProvider("youtube:playlist"), loader, cfg.YoutubeChannelCacheDuration, | ||
| ), | ||
| } | ||
|
|
||
| return r | ||
| } |
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