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'use strict';
const common = require('../common');
if (!common.hasCrypto)
common.skip('missing crypto');
const assert = require('assert');
const fixtures = require('../common/fixtures');
const fs = require('fs');
const http2 = require('http2');
const path = require('path');
const tmpdir = require('../common/tmpdir');
tmpdir.refresh();
// This test assesses whether long-running writes can complete
// or timeout because the session or stream are not aware that the
// backing stream is still writing.
// To simulate a slow client, we write a really large chunk and
// then proceed through the following cycle:
// 1) Receive first 'data' event and record currently written size
// 2) Once we've read up to currently written size recorded above,
// we pause the stream and wait longer than the server timeout
// 3) Socket.prototype._onTimeout triggers and should confirm
// that the backing stream is still active and writing
// 4) Our timer fires, we resume the socket and start at 1)
const writeSize = 3000000;
const minReadSize = 500000;
const serverTimeout = common.platformTimeout(500);
let offsetTimeout = common.platformTimeout(100);
let didReceiveData = false;
const content = Buffer.alloc(writeSize, 0x44);
const filepath = path.join(tmpdir.path, 'http2-large-write.tmp');
fs.writeFileSync(filepath, content, 'binary');
const fd = fs.openSync(filepath, 'r');
const server = http2.createSecureServer({
key: fixtures.readKey('agent1-key.pem'),
cert: fixtures.readKey('agent1-cert.pem')
});
server.on('stream', common.mustCall((stream) => {
stream.respondWithFD(fd, {
'Content-Type': 'application/octet-stream',
'Content-Length': content.length.toString(),
'Vary': 'Accept-Encoding'
});
stream.end();
}));
server.setTimeout(serverTimeout);
server.on('timeout', () => {
assert.ok(!didReceiveData, 'Should not timeout');
});
server.listen(0, common.mustCall(() => {
const client = http2.connect(`https://localhost:${server.address().port}`,
{ rejectUnauthorized: false });
const req = client.request({ ':path': '/' });
req.end();
const resume = () => req.resume();
let receivedBufferLength = 0;
let firstReceivedAt;
req.on('data', common.mustCallAtLeast((buf) => {
if (receivedBufferLength === 0) {
didReceiveData = false;
firstReceivedAt = Date.now();
}
receivedBufferLength += buf.length;
if (receivedBufferLength >= minReadSize &&
receivedBufferLength < writeSize) {
didReceiveData = true;
receivedBufferLength = 0;
req.pause();
setTimeout(
resume,
serverTimeout + offsetTimeout - (Date.now() - firstReceivedAt)
);
offsetTimeout = 0;
}
}, 1));
req.on('end', common.mustCall(() => {
client.close();
server.close();
}));
}));
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