feat(setting): Implemented the settings administrative menu

lib/boxstore/manifest.go

@@ -153,6 +153,43 @@ func RenewManifest(boxID string, seconds int64) (models.BoxManifest, error) {
 	manifest.ExpiresAt = time.Now().UTC().Add(time.Duration(seconds) * time.Second)
 	return manifest, writeManifestUnlocked(boxID, manifest)
 }
+
+func ExpireBox(boxID string) (models.BoxManifest, error) {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return manifest, err
+	}
+	manifest.ExpiresAt = time.Now().UTC().Add(-time.Second)
+	return manifest, writeManifestUnlocked(boxID, manifest)
+}
+
+func BumpBoxExpiry(boxID string, delta time.Duration) (models.BoxManifest, error) {
+	manifestMu.Lock()
+	defer manifestMu.Unlock()
+
+	manifest, err := readManifestUnlocked(boxID)
+	if err != nil {
+		return manifest, err
+	}
+	if delta <= 0 {
+		return manifest, fmt.Errorf("Invalid bump duration")
+	}
+	if manifest.OneTimeDownload {
+		return manifest, fmt.Errorf("One-time boxes cannot be extended")
+	}
+
+	base := manifest.ExpiresAt
+	now := time.Now().UTC()
+	if base.IsZero() || base.Before(now) {
+		base = now
+	}
+	manifest.ExpiresAt = base.Add(delta)
+	return manifest, writeManifestUnlocked(boxID, manifest)
+}
+
 func reconcileManifest(boxID string) (models.BoxManifest, error) {
 	manifestMu.Lock()
 	defer manifestMu.Unlock()