Initial Release

routes/GET_Assets_{filename}.go

@@ -0,0 +1,65 @@
+package routes
+
+import (
+	"io"
+	"log"
+	"mime"
+	"net/http"
+	"os"
+	"path"
+	"time"
+
+	"bakonpancakz/stickerboard/env"
+)
+
+var pathPublic = path.Join("resources", "public")
+
+// Serve Static File from Resource Directory
+func serveStaticFilename(w http.ResponseWriter, filepath string) {
+
+	// Read File from Disk
+	f, err := os.Open(filepath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			w.WriteHeader(http.StatusNotFound)
+			return
+		}
+		log.Println("[http] Read Asset Error:", err)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+	defer f.Close()
+
+	// Determine Content-Type and Stream Contents
+	w.Header().Add("Content-Type", mime.TypeByExtension(path.Ext(filepath)))
+	io.Copy(w, f)
+}
+
+func GET_Assets_Filename(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		w.WriteHeader(http.StatusMethodNotAllowed)
+		return
+	}
+	f := path.Clean(r.PathValue("filename"))
+
+	if f == env.STICKERBOARD_FILENAME {
+		// Wait Until Stickerboard is Ready, this should only occur on startup!
+		if !env.StickerboardReady.Load() {
+			for {
+				if env.StickerboardReady.Load() {
+					break
+				}
+				time.Sleep(time.Second)
+			}
+		}
+		// Serve Stickerboard from Memory
+		env.StickerboardMtx.RLock()
+		w.Header().Add("Content-Type", "image/webp")
+		w.Write(env.Stickerboard)
+		env.StickerboardMtx.RUnlock()
+		return
+	}
+
+	// Serve Asset from Disk
+	serveStaticFilename(w, path.Join(pathPublic, f))
+}