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// Flags: --expose-internals
'use strict';
const { expectsError, mustCall } = require('../common');
const assert = require('assert');
const { createServer, maxHeaderSize } = require('http');
const { createConnection } = require('net');
const { getOptionValue } = require('internal/options');
const CRLF = '\r\n';
const DUMMY_HEADER_NAME = 'Cookie: ';
const DUMMY_HEADER_VALUE = 'a'.repeat(
// Plus one is to make it 1 byte too big
maxHeaderSize - DUMMY_HEADER_NAME.length - (2 * CRLF.length) + 1
);
const PAYLOAD_GET = 'GET /blah HTTP/1.1';
const PAYLOAD = PAYLOAD_GET + CRLF +
DUMMY_HEADER_NAME + DUMMY_HEADER_VALUE + CRLF.repeat(2);
const server = createServer();
server.on('connection', mustCall((socket) => {
// Legacy parser gives sligthly different response.
// This discripancy is not fixed on purpose.
const legacy = getOptionValue('--http-parser') === 'legacy';
socket.on('error', expectsError({
type: Error,
message: 'Parse Error: Header overflow',
code: 'HPE_HEADER_OVERFLOW',
bytesParsed: maxHeaderSize + PAYLOAD_GET.length - (legacy ? -1 : 0),
rawPacket: Buffer.from(PAYLOAD)
}));
}));
server.listen(0, mustCall(() => {
const c = createConnection(server.address().port);
let received = '';
c.on('connect', mustCall(() => {
c.write(PAYLOAD);
}));
c.on('data', mustCall((data) => {
received += data.toString();
}));
c.on('end', mustCall(() => {
assert.strictEqual(
received,
'HTTP/1.1 431 Request Header Fields Too Large\r\n' +
'Connection: close\r\n\r\n'
);
c.end();
}));
c.on('close', mustCall(() => server.close()));
}));
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