Add resource list page.

web/src/Setting.js

@@ -274,6 +274,18 @@ export function getShortText(s, maxLength=35) {
   }
 }
 
+export function getFriendlyFileSize(size) {
+  if (size < 1024) {
+    return size + ' B';
+  }
+
+  let i = Math.floor(Math.log(size) / Math.log(1024));
+  let num = (size / Math.pow(1024, i));
+  let round = Math.round(num);
+  num = round < 10 ? num.toFixed(2) : round < 100 ? num.toFixed(1) : round;
+  return `${num} ${'KMGTPEZY'[i-1]}B`;
+}
+
 function getRandomInt(s) {
   let hash = 0;
   if (s.length !== 0) {