some transfer fixes

src/background/p2p.js

@@ -8,6 +8,7 @@ const isPortReachable = require('./isPortReachable')
 const EventEmitter = require('events');
 const _ = require('lodash')
 const fs = require('fs')
+const path = require('path')
 
 class p2p {
 	constructor(send = () => {})
@@ -133,14 +134,35 @@ class p2p {
 		});
 
 		this.on('file', ({path}, callback) => {
-			const readable = new fs.ReadStream(path)
+			if(!this.dataDirectory)
+			{
+				logTE('transfer', 'no data directory')
+				return
+			}
+
+			const filePath = path.resolve(this.dataDirectory + '/' + path)
+			if(!filePath.includes(this.dataDirectory))
+			{
+				logTE('transfer', 'file get must be from data dir')
+				return
+			}
+
+			if(!fs.existsSync(filePath))
+			{
+				logTE('transfer', 'no such file or directory', filePath)
+				return
+			}
+
+			let readable = new fs.ReadStream(filePath)
 			logT('transfer', 'server transfer file', path)
 			readable.on('data', (chunk) => {
+				console.log('chunk', chunk.length)
 				callback({data: chunk})
 			});
 			readable.on('end', () => {
 				logT('transfer', 'server finish transfer file', path)
 				callback(undefined)
+				readable = null
 			});
 		})
 	}
@@ -370,19 +392,34 @@ class p2p {
 		socket.connect(address.port, address.address);
 	}
 
-	emit(type, data, callback)
+	emit(type, data, callback, callbackPermanent)
 	{
+		const callbacks = []
 		for(const peer of this.peers)
 		{
 			if(peer.emit)
-				peer.emit(type, data, callback)
+				callbacks.push(peer.emit(type, data, callback, callbackPermanent))
 		}
+		return () => callbacks.forEach(callback => callback())
 	}
 
-	file(peer, path)
+	file(path, targetPath, remotePeer)
 	{
-		const fileStream = fs.createWriteStream(path)
-		let deleteCallback = peer.emit('file', {path}, (chunk) => {
+		if(!this.dataDirectory)
+		{
+			logTE('transfer', 'no data directory')
+			return
+		}
+
+		const fileStream = fs.createWriteStream(this.dataDirectory + '/' + (targetPath || path.basename(path)))
+		let peer = null
+		let deleteCallback = (remotePeer || this).emit('file', {path}, (chunk, nil, addr) => {
+			if(peer && addr !== peer)
+			{
+				logT('transfer', 'ignore other peers responce', addr.peerId)
+				return
+			}
+
 			if(!chunk)
 			{
 				logT('transfer', 'closing transfering file stream', path)
@@ -392,7 +429,7 @@ class p2p {
 			}
 
 			const {data} = chunk
-			if(!data)
+			if(!data || data.type !== 'Buffer')
 			{
 				logTE('transfer', 'error on file transfer', path)
 				deleteCallback()
@@ -400,7 +437,11 @@ class p2p {
 				return
 			}
 
-			fileStream.write(data)
+			// make sure no othe peer will recive data
+			peer = addr
+			
+			const buffer = Buffer.from(data.data)
+			fileStream.write(buffer)
 		}, true) // dont clear callback
 	}
 

src/background/spider.js

@@ -66,6 +66,7 @@ module.exports = function (send, recive, dataDirectory, version, env)
 		const p2p = new P2PServer(send)
 		p2p.version = version
 		p2p.encryptor = encryptor
+		p2p.dataDirectory = dataDirectory // make file transfer work
 		p2p.listen()
 		const p2pStore = new P2PStore(p2p, sphinx)