front: finish docx & back: init

backend/file/provider.go

@@ -0,0 +1,26 @@
+package file
+
+import (
+	"net/http"
+	"strings"
+
+	"github.com/fumiama/paper-manager/backend/global"
+	"github.com/fumiama/paper-manager/backend/utils"
+	"github.com/sirupsen/logrus"
+)
+
+// Handler serves contents in global.FileFolder
+func Handler(w http.ResponseWriter, r *http.Request) {
+	if !utils.IsMethod("GET", w, r) {
+		return
+	}
+	i := strings.LastIndex(r.URL.Path, "/")
+	fn := r.URL.Path[i+1:]
+	if fn == "" {
+		http.Error(w, "400 Bad Request: empty path", http.StatusBadRequest)
+		return
+	}
+	name := global.FileFolder + fn
+	logrus.Infoln("[file.Handler]\t serve", name)
+	http.ServeFile(w, r, name)
+}