Implement reusable upload platform

upload/frontend/upload/put_to_vm.js

@@ -0,0 +1,19 @@
+export function putToVm(file, url, options = {}) {
+  return new Promise((resolve, reject) => {
+    const xhr = new XMLHttpRequest();
+    xhr.open('PUT', url);
+    xhr.timeout = options.timeoutMs || 300000;
+    xhr.upload.onprogress = (event) => {
+      if (event.lengthComputable && options.onProgress) {
+        options.onProgress(Math.round(event.loaded / event.total * 100));
+      }
+    };
+    xhr.onload = () => {
+      if (xhr.status >= 200 && xhr.status < 300) resolve();
+      else reject(new Error(`ВМ: HTTP ${xhr.status}`));
+    };
+    xhr.onerror = () => reject(new Error('Сеть (ВМ)'));
+    xhr.ontimeout = () => reject(new Error('Таймаут загрузки на ВМ'));
+    xhr.send(file);
+  });
+}