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http: verify method is a string #10111

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http: verify method is a string #10111

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242c5c9
http: verify method is a string
lucamaraschi Dec 4, 2016
c711ac7
http: added @cjihrig feedbacks
lucamaraschi Dec 6, 2016
29f78c1
http: renamed method for consistency
lucamaraschi Dec 7, 2016
7774c3a
http: variables rearrangement
lucamaraschi Dec 7, 2016
9561854
http: changed let to var
lucamaraschi Dec 7, 2016
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4 changes: 4 additions & 0 deletions lib/_http_client.js
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,10 @@ function ClientRequest(options, cb) {
self.socketPath = options.socketPath;
self.timeout = options.timeout;

const _method = options.method;
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Maybe we can just move the var method declaration up here and re-assign on line 75, that way we don't have a second variable for the same thing?

if (_method != null && typeof _method !== 'string') {
throw new TypeError('Method must be a string');
}
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@mscdex mscdex Dec 4, 2016 •
edited
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For the best backwards compatibility (and to emulate the method value selection behavior below the typeof check), I think the undefined/null check should be removed and just test for truthiness:

if (options.method && typeof options.method !== 'string') {
  throw new TypeError('Method must be a string');
}

The reason being that options.method could be one of several non-truthy values, such as 0 and false.

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@lucamaraschi lucamaraschi Dec 4, 2016 •
edited
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In this case if options.method is set to 0 results in a falsy value which is going to default the method to GET in the following check.

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@mscdex that would not fix the non-truthy values, confusing the defaulting of 0 values to GET.

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Well, it's a difference between semver-ness. This change is definitely going to be semver-major as-is, but it could be semver-patch with the check I suggested. It's up to you.

var method = self.method = (options.method || 'GET').toUpperCase();
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We should probably use options.method or _method consistently. Right now it's a mix.

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The common._checkIsHttpToken() check on line 77 already includes a test to ensure method is a string.

if (!common._checkIsHttpToken(method)) {
throw new TypeError('Method must be a valid HTTP token');
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40 changes: 40 additions & 0 deletions test/parallel/test-http-client-check-http-token.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,40 @@
'use strict';
const common = require('../common');
const assert = require('assert');
const http = require('http');

const expectedSuccesses = [undefined, null, 'GET', 'post'];
let requestCount = 0;

const server = http.createServer((req, res) => {
requestCount++;
res.end();

if (expectedSuccesses.length === requestCount) {
server.close();
}
}).listen(0, test);

function test() {
function fail(input) {
assert.throws(() => {
http.request({ method: input, path: '/' }, common.fail);
}, /^TypeError: Method must be a string$/);
}

fail(-1);
fail(1);
fail(0);
fail({});
fail(true);
fail(false);
fail([]);

function ok(method) {
http.request({ method: method, port: server.address().port }).end();
}

expectedSuccesses.forEach((method) => {
ok(method);
});
}