socket.io gangeerror:数组缓冲区分配失败

Question

通过socket.io craskes crashes服务器发送消息

server > RangeError: Array buffer allocation failed               │
server >     at Buffer.Uint8Array (native)                        │
server >     at FastBuffer (buffer.js:12:5)                       │
server >     at createUnsafeBuffer (buffer.js:39:12)              │
server >     at arrayBufferToBuffer (/home/htdocs/socket/server/  │
node_modules/engine.io-parser/lib/index.js:371:16)                │
server >     at Object.exports.decodePacket (/home/htdocs/socket  │
/server/node_modules/engine.io-parser/lib/index.js:159:12)        │
server >     at WebSocket.Transport.onData (/home/htdocs/socket/  │
server/node_modules/engine.io/lib/transport.js:116:24)            │
server >     at WebSocket.onData (/home/htdocs/socket/server/nod  │
e_modules/engine.io/lib/transports/websocket.js:79:30)            │
server >     at onServerMessage (/home/htdocs/socket/server/node  │
_modules/uws/uws.js:18:15)

因此，它是我的应用程序的"打开"漏洞，因为客户端写入JavaScript上的客户端，并且用户可以轻松地修改它，并且可以以某种方式禁用接受大型请求node.js是否可以轻松地修改它。/socket.io side？

nginx用于负载平衡，因此也许可以配置nginx以使大型请求无效

Answer 1

通过传递maxhttpbuffersize(WS中的maxpayload(参数(在字节中(

来解决

const io = require('socket.io')(port, {
    'maxHttpBufferSize': 1000000
});

如果DOS或太大文件，套接字将与服务器断开，服务器将继续工作正常。