update electron to v43

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agent-base
==========
### Turn a function into an [`http.Agent`][http.Agent] instance
[![Build Status](https://github.com/TooTallNate/node-agent-base/workflows/Node%20CI/badge.svg)](https://github.com/TooTallNate/node-agent-base/actions?workflow=Node+CI)
This module provides an `http.Agent` generator. That is, you pass it an async
callback function, and it returns a new `http.Agent` instance that will invoke the
given callback function when sending outbound HTTP requests.
This module is a thin wrapper around the base `http.Agent` class.
It provides an abstract class that must define a `connect()` function,
which is responsible for creating the underlying socket that the HTTP
client requests will use.
The `connect()` function may return an arbitrary `Duplex` stream, or
another `http.Agent` instance to delegate the request to, and may be
asynchronous (by defining an `async` function).
Instances of this agent can be used with the `http` and `https`
modules. To differentiate, the options parameter in the `connect()`
function includes a `secureEndpoint` property, which can be checked
to determine what type of socket should be returned.
#### Some subclasses:
Here's some more interesting uses of `agent-base`.
Here are some more interesting uses of `agent-base`.
Send a pull request to list yours!
* [`http-proxy-agent`][http-proxy-agent]: An HTTP(s) proxy `http.Agent` implementation for HTTP endpoints
@ -17,129 +27,43 @@ Send a pull request to list yours!
* [`pac-proxy-agent`][pac-proxy-agent]: A PAC file proxy `http.Agent` implementation for HTTP and HTTPS
* [`socks-proxy-agent`][socks-proxy-agent]: A SOCKS proxy `http.Agent` implementation for HTTP and HTTPS
Installation
------------
Install with `npm`:
``` bash
$ npm install agent-base
```
Example
-------
Here's a minimal example that creates a new `net.Socket` connection to the server
for every HTTP request (i.e. the equivalent of `agent: false` option):
Here's a minimal example that creates a new `net.Socket` or `tls.Socket`
based on the `secureEndpoint` property. This agent can be used with both
the `http` and `https` modules.
```js
var net = require('net');
var tls = require('tls');
var url = require('url');
var http = require('http');
var agent = require('agent-base');
```ts
import * as net from 'net';
import * as tls from 'tls';
import * as http from 'http';
import { Agent } from 'agent-base';
var endpoint = 'http://nodejs.org/api/';
var parsed = url.parse(endpoint);
// This is the important part!
parsed.agent = agent(function (req, opts) {
var socket;
// `secureEndpoint` is true when using the https module
if (opts.secureEndpoint) {
socket = tls.connect(opts);
} else {
socket = net.connect(opts);
class MyAgent extends Agent {
connect(req, opts) {
// `secureEndpoint` is true when using the "https" module
if (opts.secureEndpoint) {
return tls.connect(opts);
} else {
return net.connect(opts);
}
}
return socket;
});
// Everything else works just like normal...
http.get(parsed, function (res) {
// Keep alive enabled means that `connect()` will only be
// invoked when a new connection needs to be created
const agent = new MyAgent({ keepAlive: true });
// Pass the `agent` option when creating the HTTP request
http.get('http://nodejs.org/api/', { agent }, (res) => {
console.log('"response" event!', res.headers);
res.pipe(process.stdout);
});
```
Returning a Promise or using an `async` function is also supported:
```js
agent(async function (req, opts) {
await sleep(1000);
// etc…
});
```
Return another `http.Agent` instance to "pass through" the responsibility
for that HTTP request to that agent:
```js
agent(function (req, opts) {
return opts.secureEndpoint ? https.globalAgent : http.globalAgent;
});
```
API
---
## Agent(Function callback[, Object options]) → [http.Agent][]
Creates a base `http.Agent` that will execute the callback function `callback`
for every HTTP request that it is used as the `agent` for. The callback function
is responsible for creating a `stream.Duplex` instance of some kind that will be
used as the underlying socket in the HTTP request.
The `options` object accepts the following properties:
* `timeout` - Number - Timeout for the `callback()` function in milliseconds. Defaults to Infinity (optional).
The callback function should have the following signature:
### callback(http.ClientRequest req, Object options, Function cb) → undefined
The ClientRequest `req` can be accessed to read request headers and
and the path, etc. The `options` object contains the options passed
to the `http.request()`/`https.request()` function call, and is formatted
to be directly passed to `net.connect()`/`tls.connect()`, or however
else you want a Socket to be created. Pass the created socket to
the callback function `cb` once created, and the HTTP request will
continue to proceed.
If the `https` module is used to invoke the HTTP request, then the
`secureEndpoint` property on `options` _will be set to `true`_.
License
-------
(The MIT License)
Copyright (c) 2013 Nathan Rajlich <nathan@tootallnate.net>
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.
[http-proxy-agent]: https://github.com/TooTallNate/node-http-proxy-agent
[https-proxy-agent]: https://github.com/TooTallNate/node-https-proxy-agent
[pac-proxy-agent]: https://github.com/TooTallNate/node-pac-proxy-agent
[socks-proxy-agent]: https://github.com/TooTallNate/node-socks-proxy-agent
[http-proxy-agent]: ../http-proxy-agent
[https-proxy-agent]: ../https-proxy-agent
[pac-proxy-agent]: ../pac-proxy-agent
[socks-proxy-agent]: ../socks-proxy-agent
[http.Agent]: https://nodejs.org/api/http.html#http_class_http_agent