bug fixes

src/utils/upload.ts

+import axios from 'axios'
 import md5 from 'blueimp-md5'
 import { getSignature, uploadFile } from '@/api/base'
 
 export async function upload(blob: Blob) {
-  const key = 'upload/resource-center/' + md5(new Date().getTime() + Math.random().toString(36).slice(-8)) + '.png'
+  const fileType = blob.type.split('/').pop() || 'png'
+  const key = 'upload/resource-center/' + md5(new Date().getTime() + Math.random().toString(36).slice(-8)) + '.' + fileType
   const response: any = await getSignature()
   const params = {
     key,
@@ -17,3 +19,8 @@ export async function upload(blob: Blob) {
   await uploadFile(params)
   return params.url
 }
+
+export async function uploadFileByUrl(url: string) {
+  const res = await axios.get(url, { responseType: 'blob' })
+  return upload(res.data)
+}