86 lines
2.5 KiB
Go
86 lines
2.5 KiB
Go
// Package playback manages video playback, including episode sources and subtitle management.
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package playback
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import (
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"context"
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"fmt"
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"mal/integrations/jikan"
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"mal/internal/domain"
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"mal/internal/observability"
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errlog "mal/pkg"
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netutil "mal/pkg/net"
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"net/http"
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"time"
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)
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type playbackService struct {
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repo domain.PlaybackRepository
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providers []domain.Provider
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jikan *jikan.Client
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episodes domain.EpisodeService
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httpClient *http.Client
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proxyTokenKey string
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proxyTokens *proxyTokenStore
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auditSvc domain.AuditService
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}
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type ProxyTokenKey string
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func NewPlaybackService(repo domain.PlaybackRepository, providers []domain.Provider, jikan *jikan.Client, episodes domain.EpisodeService, auditSvc domain.AuditService, proxyTokenKey ProxyTokenKey) domain.PlaybackService {
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return &playbackService{
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repo: repo,
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providers: providers,
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jikan: jikan,
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episodes: episodes,
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auditSvc: auditSvc,
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httpClient: netutil.NewClient(),
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proxyTokenKey: string(proxyTokenKey),
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proxyTokens: newProxyTokenStore(),
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}
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}
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func (s *playbackService) SignProxyToken(targetURL, referer, scope string) (string, error) {
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if s.proxyTokenKey == "" {
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return "", nil
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}
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return s.proxyTokens.create(targetURL, referer, scope, 2*time.Hour, time.Now())
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}
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func (s *playbackService) ResolveProxyToken(token string, scope string) (string, string, error) {
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if s.proxyTokenKey == "" {
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return "", "", fmt.Errorf("proxy token key not configured")
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}
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target, err := s.proxyTokens.resolve(token, time.Now())
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if err != nil {
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return "", "", err
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}
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if target.scope != scope {
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return "", "", fmt.Errorf("invalid proxy token scope")
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}
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return target.targetURL, target.referer, nil
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}
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func (s *playbackService) warmStreamURL(targetURL, referer string) {
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ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
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defer cancel()
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, targetURL, nil)
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if err != nil {
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return
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}
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if referer != "" {
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req.Header.Set("Referer", referer)
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}
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req.Header.Set("User-Agent", netutil.Firefox121)
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resp, err := s.httpClient.Do(req)
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if err != nil {
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if resp != nil {
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errlog.Close(resp.Body, "failed to close warm stream error response body")
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}
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observability.LogJSON(observability.LogLevelWarn, "warm_stream_failed", "playback", err.Error(), map[string]any{"url": targetURL}, nil)
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return
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}
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errlog.Log("failed to close warm stream response body", resp.Body.Close())
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}
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