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http2: make HTTP2ServerResponse more streams compliant
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HTTP2ServerResponse.write would behave differently than
both http1 and streams. This PR makes it more compliant
with stream.Writable behaviour.

PR-URL: nodejs#30964
Refs: nodejs#29529
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ronag authored and Stewart Addison committed Jan 21, 2020
1 parent 09e4182 commit 3ddda06
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Showing 2 changed files with 74 additions and 40 deletions.
29 changes: 21 additions & 8 deletions lib/internal/http2/compat.js
Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,8 @@ const {
ERR_HTTP2_STATUS_INVALID,
ERR_INVALID_ARG_VALUE,
ERR_INVALID_CALLBACK,
ERR_INVALID_HTTP_TOKEN
ERR_INVALID_HTTP_TOKEN,
ERR_STREAM_WRITE_AFTER_END
},
hideStackFrames
} = require('internal/errors');
Expand Down Expand Up @@ -439,6 +440,7 @@ class Http2ServerResponse extends Stream {
this[kState] = {
closed: false,
ending: false,
destroyed: false,
headRequest: false,
sendDate: true,
statusCode: HTTP_STATUS_OK,
Expand Down Expand Up @@ -649,23 +651,32 @@ class Http2ServerResponse extends Stream {
}

write(chunk, encoding, cb) {
const state = this[kState];

if (typeof encoding === 'function') {
cb = encoding;
encoding = 'utf8';
}

if (this[kState].closed) {
const err = new ERR_HTTP2_INVALID_STREAM();
let err;
if (state.ending) {
err = new ERR_STREAM_WRITE_AFTER_END();
} else if (state.closed) {
err = new ERR_HTTP2_INVALID_STREAM();
} else if (state.destroyed) {
return false;
}

if (err) {
if (typeof cb === 'function')
process.nextTick(cb, err);
else
throw err;
return;
this.destroy(err);
return false;
}

const stream = this[kStream];
if (!stream.headersSent)
this.writeHead(this[kState].statusCode);
this.writeHead(state.statusCode);
return stream.write(chunk, encoding, cb);
}

Expand Down Expand Up @@ -712,8 +723,10 @@ class Http2ServerResponse extends Stream {
}

destroy(err) {
if (this[kState].closed)
if (this[kState].destroyed)
return;

this[kState].destroyed = true;
this[kStream].destroy(err);
}

Expand Down
85 changes: 53 additions & 32 deletions test/parallel/test-http2-compat-serverresponse-write.js
Original file line number Diff line number Diff line change
Expand Up @@ -3,50 +3,71 @@
const {
mustCall,
mustNotCall,
expectsError,
hasCrypto,
skip
} = require('../common');
if (!hasCrypto)
skip('missing crypto');
const { createServer, connect } = require('http2');
const assert = require('assert');

const server = createServer();
server.listen(0, mustCall(() => {
const port = server.address().port;
const url = `http://localhost:${port}`;
const client = connect(url, mustCall(() => {
const request = client.request();
request.resume();
request.on('end', mustCall());
request.on('close', mustCall(() => {
client.close();
{
const server = createServer();
server.listen(0, mustCall(() => {
const port = server.address().port;
const url = `http://localhost:${port}`;
const client = connect(url, mustCall(() => {
const request = client.request();
request.resume();
request.on('end', mustCall());
request.on('close', mustCall(() => {
client.close();
}));
}));
}));

server.once('request', mustCall((request, response) => {
// response.write() returns true
assert(response.write('muahaha', 'utf8', mustCall()));
server.once('request', mustCall((request, response) => {
// response.write() returns true
assert(response.write('muahaha', 'utf8', mustCall()));

response.stream.close(0, mustCall(() => {
response.on('error', mustNotCall());
response.stream.close(0, mustCall(() => {
response.on('error', mustNotCall());

// response.write() without cb returns error
expectsError(
() => { response.write('muahaha'); },
{
type: Error,
code: 'ERR_HTTP2_INVALID_STREAM',
message: 'The stream has been destroyed'
}
);
// response.write() without cb returns error
response.write('muahaha', mustCall((err) => {
assert.strictEqual(err.code, 'ERR_HTTP2_INVALID_STREAM');

// response.write() with cb returns falsy value
assert(!response.write('muahaha', mustCall()));
// response.write() with cb returns falsy value
assert(!response.write('muahaha', mustCall()));

client.destroy();
server.close();
}));
}));
}));
}));
}

{
// Http2ServerResponse.write ERR_STREAM_WRITE_AFTER_END
const server = createServer();
server.listen(0, mustCall(() => {
const port = server.address().port;
const url = `http://localhost:${port}`;
const client = connect(url, mustCall(() => {
const request = client.request();
request.resume();
request.on('end', mustCall());
request.on('close', mustCall(() => {
client.close();
}));
}));

client.destroy();
server.close();
server.once('request', mustCall((request, response) => {
response.end();
response.write('asd', mustCall((err) => {
assert.strictEqual(err.code, 'ERR_STREAM_WRITE_AFTER_END');
client.destroy();
server.close();
}));
}));
}));
}));
}

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