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nodejs/lib/http.js
Roy Sommer 5774688e26
lib: support overriding http\s.globalAgent
Overriding `require('http[s]').globalAgent` is now respected by
consequent requests.

In order to achieve that, the following changes were made:

1. Implmentation in `http`: `module.exports.globalAgent` is now defined
through `Object.defineProperty`. Its getter and setter return \ set
`require('_http_agent').globalAgent`.

2. Implementation in `https`: the https `globalAgent` is not the same
as `_http_agent`, and is defined in `https` module itself. Therefore,
the fix here was to simply use `module.exports.globalAgent` to support
mutation.

3. According tests were added for both `http` and `https`, where in
both we create a server, set the default agent to a newly created
instance and make a request to that server. We then assert that the
given instance was actually used by inspecting its sockets property.

Fixes: https://github.com/nodejs/node/issues/23281

PR-URL: https://github.com/nodejs/node/pull/25170
Reviewed-By: James M Snell <jasnell@gmail.com>
2019-01-08 00:10:36 +01:00

89 lines
2.5 KiB
JavaScript

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const httpAgent = require('_http_agent');
const { ClientRequest } = require('_http_client');
const { methods } = require('_http_common');
const { IncomingMessage } = require('_http_incoming');
const { OutgoingMessage } = require('_http_outgoing');
const {
_connectionListener,
STATUS_CODES,
Server,
ServerResponse
} = require('_http_server');
let maxHeaderSize;
function createServer(opts, requestListener) {
return new Server(opts, requestListener);
}
function request(url, options, cb) {
return new ClientRequest(url, options, cb);
}
function get(url, options, cb) {
var req = request(url, options, cb);
req.end();
return req;
}
module.exports = {
_connectionListener,
METHODS: methods.slice().sort(),
STATUS_CODES,
Agent: httpAgent.Agent,
ClientRequest,
IncomingMessage,
OutgoingMessage,
Server,
ServerResponse,
createServer,
get,
request
};
Object.defineProperty(module.exports, 'maxHeaderSize', {
configurable: true,
enumerable: true,
get() {
if (maxHeaderSize === undefined) {
const { getOptionValue } = require('internal/options');
maxHeaderSize = getOptionValue('--max-http-header-size');
}
return maxHeaderSize;
}
});
Object.defineProperty(module.exports, 'globalAgent', {
configurable: true,
enumerable: true,
get() {
return httpAgent.globalAgent;
},
set(value) {
httpAgent.globalAgent = value;
}
});