Add more things for file handling

web/public/media.go

@@ -0,0 +1,44 @@
+package webpublic
+
+import (
+	"io"
+	"net/http"
+
+	webutils "git.mstar.dev/mstar/goutils/http"
+	"github.com/rs/zerolog/hlog"
+
+	"git.mstar.dev/mstar/linstrom/media"
+	"git.mstar.dev/mstar/linstrom/storage-new/dbgen"
+)
+
+func downloadMediaHander(w http.ResponseWriter, r *http.Request) {
+	mediaId := r.PathValue("id")
+	log := hlog.FromRequest(r)
+	mm := dbgen.MediaMetadata
+	fileReader, err := media.GlobalServer.ReadFileId(mediaId)
+	switch err {
+	case nil:
+	case media.ErrFileNotFound:
+		_ = webutils.ProblemDetailsStatusOnly(w, http.StatusNotFound)
+		return
+	default:
+		log.Error().Err(err).Str("file-id", mediaId).Msg("Failed to get file")
+		_ = webutils.ProblemDetailsStatusOnly(w, http.StatusInternalServerError)
+		return
+	}
+	defer func() { _ = fileReader.Close() }()
+	meta, err := mm.Where(mm.ID.Eq(mediaId)).Select(mm.Type).First()
+	if err != nil {
+		log.Error().
+			Err(err).
+			Str("file-id", mediaId).
+			Msg("Failed to get file metadata after already getting file")
+		_ = webutils.ProblemDetailsStatusOnly(w, http.StatusInternalServerError)
+		return
+	}
+	w.Header().Add("Content-Type", meta.Type)
+	_, err = io.Copy(w, fileReader)
+	if err != nil {
+		log.Error().Err(err).Msg("Failed to copy file to request")
+	}
+}