switched from sharp to jimp for img processing

package.json

@@ -32,16 +32,15 @@
   "dependencies": {
     "curve25519-js": "0.0.4",
     "futoin-hkdf": "^1.3.2",
+    "jimp": "^0.14.0",
     "node-fetch": "^2.6.0",
     "protobufjs": "^6.9.0",
     "qrcode-terminal": "^0.12.0",
-    "sharp": "^0.25.4",
     "ws": "^7.3.0"
   },
   "devDependencies": {
     "@types/mocha": "^7.0.2",
     "@types/node": "^14.0.14",
-    "@types/sharp": "^0.25.0",
     "@types/ws": "^7.2.6",
     "@typescript-eslint/eslint-plugin": "^3.5.0",
     "@typescript-eslint/parser": "^3.5.0",

src/WAClient/Utils.ts

@@ -1,5 +1,5 @@
 import { MessageType, HKDFInfoKeys, MessageOptions, WAMessageType } from './Constants'
-import sharp from 'sharp'
+import Jimp from 'jimp'
 import * as fs from 'fs'
 import fetch from 'node-fetch'
 import { WAMessage, WAMessageContent } from '../WAConnection/Constants'
@@ -60,8 +60,10 @@ const extractVideoThumb = async (
         })
     }) as Promise<void>
 
-export const compressImage = async (buffer: Buffer) => sharp(buffer).resize(48, 48).jpeg().toBuffer()
-
+export const compressImage = async (buffer: Buffer) => {
+    const jimp = await Jimp.read (buffer)
+    return jimp.resize(48, 48).getBufferAsync (Jimp.MIME_JPEG)
+}
 /** generates a thumbnail for a given media, if required */
 export async function generateThumbnail(buffer: Buffer, mediaType: MessageType, info: MessageOptions) {
     if (info.thumbnail === null || info.thumbnail) {