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test: add regression tests for HTTP parser crash #34250

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53 changes: 53 additions & 0 deletions test/parallel/test-http-sync-write-error-during-continue.js
Original file line number Diff line number Diff line change
@@ -0,0 +1,53 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const http = require('http');
const MakeDuplexPair = require('../common/duplexpair');

// Regression test for the crash reported in
// https://github.com/nodejs/node/issues/15102 (httpParser.finish() is called
// during httpParser.execute()):

{
const { clientSide, serverSide } = MakeDuplexPair();

serverSide.on('data', common.mustCall((data) => {
assert.strictEqual(data.toString('utf8'), `\
GET / HTTP/1.1
Expect: 100-continue
Host: localhost:80
Connection: close

`.replace(/\n/g, '\r\n'));

setImmediate(() => {
serverSide.write('HTTP/1.1 100 Continue\r\n\r\n');
});
}));

const req = http.request({
createConnection: common.mustCall(() => clientSide),
headers: {
'Expect': '100-continue'
}
});
req.on('continue', common.mustCall((res) => {
let sync = true;

clientSide._writev = null;
clientSide._write = common.mustCall((chunk, enc, cb) => {
assert(sync);
// On affected versions of Node.js, the error would be emitted on `req`
// synchronously (i.e. before commit f663b31cc2aec), which would cause
// parser.finish() to be called while we are here in the 'continue'
// callback, which is inside a parser.execute() call.

assert.strictEqual(chunk.length, 0);
clientSide.destroy(new Error('sometimes the code just doesn’t work'), cb);
});
req.on('error', common.mustCall());
req.end();

sync = false;
}));
}