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https: make opts optional & immutable when create #13599

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https: make opts optional & immutable when create #13599

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26d4efb
https: make opts optional & immutable when create
XadillaX Jun 10, 2017
2c7ff7b
use Object.assign to instead of util._extend
XadillaX Jun 10, 2017
b3a1ac6
use the default message in common.mustNotCall
XadillaX Jun 10, 2017
9414765
update after reviewing
XadillaX Jun 10, 2017
c798af8
add test case for no argument
XadillaX Jun 10, 2017
5de8cf2
use blocks to instead of server1, server2, ...
XadillaX Jun 10, 2017
dc2291c
add test skip
XadillaX Jun 11, 2017
2232fad
delete default param to prevent some breaking changes
XadillaX Jun 13, 2017
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2 changes: 1 addition & 1 deletion doc/api/https.md
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Expand Up @@ -46,7 +46,7 @@ added: v8.0.0

See [`http.Server#keepAliveTimeout`][].

## https.createServer(options[, requestListener])
## https.createServer([options][, requestListener])
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@mscdex mscdex Jun 10, 2017 •
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I don't think we have to change this in the documentation, since tls.Server() will still require a configuration (a certificate and key at minimum). The benefit of guarding early before tls.Server() is called is to avoid strange JavaScript runtime errors. Huh... I take that back, it doesn't seem to enforce a minimum configuration...

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But a test in either way should be added.

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@refack the test is in test/parallel/test-https-immutable-options.js, which tested in server2.

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Need a test like

// validate that `createServer` can work with no arguments
const server2 = https.createServer();
assert.ok(server2);
assert.strictEqual(server1.NPNProtocols.compare(dftProtocol.NPNProtocols), 0);

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@refack done.

<!-- YAML
added: v0.3.4
-->
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8 changes: 7 additions & 1 deletion lib/https.js
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Expand Up @@ -31,9 +31,15 @@ const inherits = util.inherits;
const debug = util.debuglog('https');
const { urlToOptions, searchParamsSymbol } = require('internal/url');

function Server(opts, requestListener) {
function Server(opts = {}, requestListener) {
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Note that using default values is potentially a breaking change given that it changes the value of Server.length

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Shall I delete the default value?

if (!(this instanceof Server)) return new Server(opts, requestListener);

if (typeof opts === 'function') {
requestListener = opts;
opts = undefined;
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Minor nit: The optional value is an object, but here reset to undefined, this does not appear consistent :)

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@XadillaX XadillaX Jun 12, 2017 •
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@yorkie, Because I think util._extend({}, undefined) performance is better than util._extend({}, {})

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@yorkie yorkie Jun 13, 2017 •
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Then I think you would make the opts default be unset as well for performance. BTW perf is not that crucial here than consistence and readability, this constructor needn't be called too much times in any of applications :)

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The problem is opts = util._extend({}, opts); shows it's not a consistent.

Do you mean that?

...

const realOpts = util._extend({}, opts);

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The mean problem is the default value, removing that like https://github.com/nodejs/node/pull/13599/files#r121620077 works for me :)

}
opts = opts ? Object.assign({}, opts) : {};
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I think you can change this to

opts = Object.assign({}, opts);


if (process.features.tls_npn && !opts.NPNProtocols) {
opts.NPNProtocols = ['http/1.1', 'http/1.0'];
}
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22 changes: 22 additions & 0 deletions test/parallel/test-https-immutable-options.js
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@@ -0,0 +1,22 @@
'use strict';

const common = require('../common');

const assert = require('assert');
const https = require('https');
const tls = require('tls');

const dftProtocol = {};
tls.convertNPNProtocols([ 'http/1.1', 'http/1.0' ], dftProtocol);

const opts = { foo: 'bar' };
const server1 = https.createServer(opts);

assert.deepStrictEqual(opts, { foo: 'bar' });
assert.strictEqual(server1.NPNProtocols.compare(dftProtocol.NPNProtocols), 0);
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@mscdex mscdex Jun 10, 2017 •
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I think it should suffice to just compare the NPNProtocols references. That way we know for sure that our options weren't overridden:

assert.strictEqual(server1.NPNProtocols, dftProtocol.NPNProtocols);

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@mscdex I think we can't, because NPNProtocols hasn't been cached yet. 2 calls to tls.convertNPNProtocols won't return the same reference.

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@mscdex mscdex Jun 10, 2017 •
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Ah ok I see it now. Perhaps we should at least choose a different set of protocols then, so as to differentiate from the default NPN protocols (perhaps just use one protocol?).


const mustNotCall = common.mustNotCall();
const server2 = https.createServer(mustNotCall);
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@mscdex mscdex Jun 10, 2017 •
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The comment below doesn't match the behavior of this line. If we're testing no arguments, it should just be https.createServer().

Otherwise we could add a separate test below for no arguments.


assert.strictEqual(server2.NPNProtocols.compare(dftProtocol.NPNProtocols), 0);
assert.strictEqual(mustNotCall, server2._events.request);
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Can we replace this with

assert.strictEqual(server2.listeners('request'), 1);
assert.strictEqual(server2.listeners('request')[0], mustNotCall);