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presets/mux: check hostname and port of CMD_NEW_CONN frame

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This commit is contained in:
Micooz 2018-01-18 18:03:01 +08:00
parent e288d6fc40
commit d2cefa4756
1 changed files with 5 additions and 2 deletions
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7
src/presets/mux.js
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@ -1,4 +1,4 @@
import {AdvancedBuffer, dumpHex, getRandomChunks, numberToBuffer as ntb} from '../utils';
import {AdvancedBuffer, dumpHex, getRandomChunks, isValidHostname, isValidPort, numberToBuffer as ntb} from '../utils';
import {IPresetAddressing, MUX_CLOSE_CONN, MUX_DATA_FRAME, MUX_NEW_CONN} from './defs';
const CMD_NEW_CONN = 0x00;
@ -75,13 +75,16 @@ export default class MuxPreset extends IPresetAddressing {
}
}
onChunkReceived(chunk, {broadcast}) {
onChunkReceived(chunk, {broadcast, fail}) {
const cmd = chunk[0];
const cid = chunk[1];
switch (cmd) {
case CMD_NEW_CONN: {
const host = chunk.slice(3, -2).toString();
const port = chunk.readUInt16BE(3 + chunk[2]);
if (!isValidHostname(host) || !isValidPort(port)) {
return fail(`invalid host or port, host=${host} port=${port}`);
}
return broadcast({
type: MUX_NEW_CONN,
payload: {