mirror of https://github.com/jkjoy/sunpeiwen.git
258 lines
7.6 KiB
Markdown
258 lines
7.6 KiB
Markdown
# socks examples
|
|
|
|
## Example for SOCKS 'connect' command
|
|
|
|
The connect command is the most common use-case for a SOCKS proxy. This establishes a direct connection to a destination host through a proxy server. The destination host only has knowledge of the proxy server connecting to it and does not know about the origin client (you).
|
|
|
|
**Origin Client (you) <-> Proxy Server <-> Destination Server**
|
|
|
|
In this example, we are connecting to a web server on port 80, and sending a very basic HTTP request to receive a response. It's worth noting that there are many socks-http-agents that can be used with the node http module (and libraries such as request.js) to make this easier. This HTTP request is used as a simple example.
|
|
|
|
The 'connect' command can be used via the SocksClient.createConnection() factory function as well as by creating a SocksClient instance and using event handlers.
|
|
|
|
### Using createConnection with async/await
|
|
|
|
Since SocksClient.createConnection returns a Promise, we can easily use async/await for flow control.
|
|
|
|
```typescript
|
|
const SocksClient = require('socks').SocksClient;
|
|
|
|
const options = {
|
|
proxy: {
|
|
host: '104.131.124.203',
|
|
port: 1081,
|
|
type: 5
|
|
},
|
|
|
|
destination: {
|
|
host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
|
|
port: 80
|
|
},
|
|
|
|
command: 'connect'
|
|
};
|
|
|
|
async function start() {
|
|
try {
|
|
const info = await SocksClient.createConnection(options);
|
|
|
|
console.log(info.socket);
|
|
// <Socket ...> (this is a raw net.Socket that is established to the destination host through the given proxy servers)
|
|
|
|
info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
|
|
info.socket.on('data', (data) => {
|
|
console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
|
|
/*
|
|
HTTP/1.1 200 OK
|
|
Access-Control-Allow-Origin: *
|
|
Content-Type: application/json; charset=utf-8
|
|
Date: Sun, 24 Dec 2017 03:47:51 GMT
|
|
Content-Length: 300
|
|
|
|
{
|
|
"as":"AS14061 Digital Ocean, Inc.",
|
|
"city":"Clifton",
|
|
"country":"United States",
|
|
"countryCode":"US",
|
|
"isp":"Digital Ocean",
|
|
"lat":40.8326,
|
|
"lon":-74.1307,
|
|
"org":"Digital Ocean",
|
|
"query":"104.131.124.203",
|
|
"region":"NJ",
|
|
"regionName":"New Jersey",
|
|
"status":"success",
|
|
"timezone":"America/New_York",
|
|
"zip":"07014"
|
|
}
|
|
*/
|
|
} catch (err) {
|
|
// Handle errors
|
|
}
|
|
}
|
|
|
|
start();
|
|
```
|
|
|
|
### Using createConnection with Promises
|
|
|
|
```typescript
|
|
const SocksClient = require('socks').SocksClient;
|
|
|
|
const options = {
|
|
proxy: {
|
|
ipaddress: '104.131.124.203',
|
|
port: 1081,
|
|
type: 5
|
|
},
|
|
|
|
destination: {
|
|
host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
|
|
port: 80
|
|
},
|
|
|
|
command: 'connect'
|
|
};
|
|
|
|
SocksClient.createConnection(options)
|
|
.then(info => {
|
|
console.log(info.socket);
|
|
// <Socket ...> (this is a raw net.Socket that is established to the destination host through the given proxy servers)
|
|
|
|
info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
|
|
info.socket.on('data', (data) => {
|
|
console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
|
|
/*
|
|
HTTP/1.1 200 OK
|
|
Access-Control-Allow-Origin: *
|
|
Content-Type: application/json; charset=utf-8
|
|
Date: Sun, 24 Dec 2017 03:47:51 GMT
|
|
Content-Length: 300
|
|
|
|
{
|
|
"as":"AS14061 Digital Ocean, Inc.",
|
|
"city":"Clifton",
|
|
"country":"United States",
|
|
"countryCode":"US",
|
|
"isp":"Digital Ocean",
|
|
"lat":40.8326,
|
|
"lon":-74.1307,
|
|
"org":"Digital Ocean",
|
|
"query":"104.131.124.203",
|
|
"region":"NJ",
|
|
"regionName":"New Jersey",
|
|
"status":"success",
|
|
"timezone":"America/New_York",
|
|
"zip":"07014"
|
|
}
|
|
*/
|
|
})
|
|
.catch(err => {
|
|
// handle errors
|
|
});
|
|
```
|
|
|
|
### Using createConnection with callbacks
|
|
|
|
SocksClient.createConnection() optionally accepts a callback function as a second parameter.
|
|
|
|
**Note:** If a callback function is provided, a Promise is still returned from the function, but the promise will always resolve regardless of if there was en error. (tldr: Do not mix callbacks and Promises).
|
|
|
|
```typescript
|
|
const SocksClient = require('socks').SocksClient;
|
|
|
|
const options = {
|
|
proxy: {
|
|
ipaddress: '104.131.124.203',
|
|
port: 1081,
|
|
type: 5
|
|
},
|
|
|
|
destination: {
|
|
host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
|
|
port: 80
|
|
},
|
|
|
|
command: 'connect'
|
|
};
|
|
|
|
SocksClient.createConnection(options, (err, info) => {
|
|
if (err) {
|
|
// handle errors
|
|
} else {
|
|
console.log(info.socket);
|
|
// <Socket ...> (this is a raw net.Socket that is established to the destination host through the given proxy servers)
|
|
|
|
info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
|
|
info.socket.on('data', (data) => {
|
|
console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
|
|
/*
|
|
HTTP/1.1 200 OK
|
|
Access-Control-Allow-Origin: *
|
|
Content-Type: application/json; charset=utf-8
|
|
Date: Sun, 24 Dec 2017 03:47:51 GMT
|
|
Content-Length: 300
|
|
|
|
{
|
|
"as":"AS14061 Digital Ocean, Inc.",
|
|
"city":"Clifton",
|
|
"country":"United States",
|
|
"countryCode":"US",
|
|
"isp":"Digital Ocean",
|
|
"lat":40.8326,
|
|
"lon":-74.1307,
|
|
"org":"Digital Ocean",
|
|
"query":"104.131.124.203",
|
|
"region":"NJ",
|
|
"regionName":"New Jersey",
|
|
"status":"success",
|
|
"timezone":"America/New_York",
|
|
"zip":"07014"
|
|
}
|
|
*/
|
|
}
|
|
})
|
|
```
|
|
|
|
### Using event handlers
|
|
|
|
SocksClient also supports instance creation of a SocksClient. This allows for event based flow control.
|
|
|
|
```typescript
|
|
const SocksClient = require('socks').SocksClient;
|
|
|
|
const options = {
|
|
proxy: {
|
|
ipaddress: '104.131.124.203',
|
|
port: 1081,
|
|
type: 5
|
|
},
|
|
|
|
destination: {
|
|
host: 'ip-api.com', // host names are supported with SOCKS v4a and SOCKS v5.
|
|
port: 80
|
|
},
|
|
|
|
command: 'connect'
|
|
};
|
|
|
|
const client = new SocksClient(options);
|
|
|
|
client.on('established', (info) => {
|
|
console.log(info.socket);
|
|
// <Socket ...> (this is a raw net.Socket that is established to the destination host through the given proxy servers)
|
|
|
|
info.socket.write('GET /json HTTP/1.1\nHost: ip-api.com\n\n');
|
|
info.socket.on('data', (data) => {
|
|
console.log(data.toString()); // ip-api.com sees that the last proxy (104.131.124.203) is connected to it and not the origin client (you).
|
|
/*
|
|
HTTP/1.1 200 OK
|
|
Access-Control-Allow-Origin: *
|
|
Content-Type: application/json; charset=utf-8
|
|
Date: Sun, 24 Dec 2017 03:47:51 GMT
|
|
Content-Length: 300
|
|
|
|
{
|
|
"as":"AS14061 Digital Ocean, Inc.",
|
|
"city":"Clifton",
|
|
"country":"United States",
|
|
"countryCode":"US",
|
|
"isp":"Digital Ocean",
|
|
"lat":40.8326,
|
|
"lon":-74.1307,
|
|
"org":"Digital Ocean",
|
|
"query":"104.131.124.203",
|
|
"region":"NJ",
|
|
"regionName":"New Jersey",
|
|
"status":"success",
|
|
"timezone":"America/New_York",
|
|
"zip":"07014"
|
|
}
|
|
*/
|
|
});
|
|
|
|
// Failed to establish proxy connection to destination.
|
|
client.on('error', () => {
|
|
// Handle errors
|
|
});
|
|
``` |