fix: memory blow on large files sending through URL

src/Utils/messages.ts

@@ -1,7 +1,7 @@
 import { Boom } from '@hapi/boom'
 import axios from 'axios'
 import { randomBytes } from 'crypto'
-import { promises as fs } from 'fs'
+import { createReadStream, promises as fs } from 'fs'
 import { type Transform } from 'stream'
 import { proto } from '../../WAProto'
 import { MEDIA_KEYS, URL_REGEX, WA_DEFAULT_EPHEMERAL } from '../Defaults'
@@ -155,15 +155,14 @@ export const prepareWAMessageMedia = async(
 										(typeof uploadData['jpegThumbnail'] === 'undefined')
 	const requiresWaveformProcessing = mediaType === 'audio' && uploadData.ptt === true
 	const requiresAudioBackground = options.backgroundColor && mediaType === 'audio' && uploadData.ptt === true
-	const requiresOriginalForSomeProcessing = requiresDurationComputation || requiresThumbnailComputation
+  const requiresOriginalForSomeProcessing = requiresDurationComputation || requiresThumbnailComputation
 	const {
 		mediaKey,
-		encWriteStream,
-		bodyPath,
+		encFilePath,
+		originalFilePath,
 		fileEncSha256,
 		fileSha256,
-		fileLength,
-		didSaveToTmpPath
+		fileLength	
 	} = await encryptedStream(
 		uploadData.media,
 		options.mediaTypeOverride || mediaType,
@@ -178,7 +177,7 @@ export const prepareWAMessageMedia = async(
 	const [{ mediaUrl, directPath }] = await Promise.all([
 		(async() => {
 			const result = await options.upload(
-				encWriteStream,
+				createReadStream(encFilePath),
 				{ fileEncSha256B64, mediaType, timeoutMs: options.mediaUploadTimeoutMs }
 			)
 			logger?.debug({ mediaType, cacheableKey }, 'uploaded media')
@@ -190,7 +189,7 @@ export const prepareWAMessageMedia = async(
 					const {
 						thumbnail,
 						originalImageDimensions
-					} = await generateThumbnail(bodyPath!, mediaType as 'image' | 'video', options)
+					} = await generateThumbnail(originalFilePath!, mediaType as 'image' | 'video', options)
 					uploadData.jpegThumbnail = thumbnail
 					if(!uploadData.width && originalImageDimensions) {
 						uploadData.width = originalImageDimensions.width
@@ -202,12 +201,12 @@ export const prepareWAMessageMedia = async(
 				}
 
 				if(requiresDurationComputation) {
-					uploadData.seconds = await getAudioDuration(bodyPath!)
+					uploadData.seconds = await getAudioDuration(originalFilePath!)
 					logger?.debug('computed audio duration')
 				}
 
 				if(requiresWaveformProcessing) {
-					uploadData.waveform = await getAudioWaveform(bodyPath!, logger)
+					uploadData.waveform = await getAudioWaveform(originalFilePath!, logger)
 					logger?.debug('processed waveform')
 				}
 
@@ -222,17 +221,13 @@ export const prepareWAMessageMedia = async(
 	])
 		.finally(
 			async() => {
-				encWriteStream.destroy()
-				// remove tmp files
-				if(didSaveToTmpPath && bodyPath) {
-					try {
-						await fs.access(bodyPath)
-						await fs.unlink(bodyPath)
-						logger?.debug('removed tmp file')
-					} catch(error) {
-						logger?.warn('failed to remove tmp file')
-					}
-				}
+        try {
+          await fs.unlink(encFilePath)
+          if (originalFilePath) await fs.unlink(originalFilePath)
+          logger?.debug('removed tmp files')
+        } catch(error) {
+          logger?.warn('failed to remove tmp file')
+        }
 			}
 		)