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http: remove 'data' and 'end' listener if client parser error
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There might be the case of some more data coming through after
the parser has returned an error and we have destroyed the socket.
We should also be removing the 'data' event handler.

Fixes: #40242

PR-URL: #40244
Reviewed-By: Robert Nagy <ronagy@icloud.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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mcollina authored and targos committed Oct 4, 2021
1 parent 383dbe9 commit 555af5b
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Showing 2 changed files with 6 additions and 1 deletion.
2 changes: 2 additions & 0 deletions lib/_http_client.js
Original file line number Diff line number Diff line change
Expand Up @@ -489,6 +489,8 @@ function socketOnData(d) {
prepareError(ret, parser, d);
debug('parse error', ret);
freeParser(parser, req, socket);
socket.removeListener('data', socketOnData);
socket.removeListener('end', socketOnEnd);
socket.destroy();
req.socket._hadError = true;
req.emit('error', ret);
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5 changes: 4 additions & 1 deletion test/parallel/test-http-client-parse-error.js
Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,7 @@
const common = require('../common');
const http = require('http');
const net = require('net');
const assert = require('assert');
const Countdown = require('../common/countdown');

const countdown = new Countdown(2, () => server.close());
Expand All @@ -38,10 +39,12 @@ const server =

server.listen(0, common.mustCall(() => {
for (let i = 0; i < 2; i++) {
http.get({
const req = http.get({
port: server.address().port,
path: '/'
}).on('error', common.mustCall((e) => {
assert.strictEqual(req.socket.listenerCount('data'), 0);
assert.strictEqual(req.socket.listenerCount('end'), 1);
common.expectsError({
code: 'HPE_INVALID_CONSTANT',
message: 'Parse Error: Expected HTTP/'
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