how to use ssh as sock5 with curl in php? - php

Question

$connection = ssh2_connect($ip_ssh, 22);
if (ssh2_auth_password($connection,$username, $password)) {
if ($tunnel = ssh2_tunnel($connection, '127.0.0.1', 443)) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_URL, "http://ipinfo.io");
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, true);
curl_setopt($ch, CURLOPT_PROXY, "127.0.0.1:443");
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5);
$result = curl_exec($ch);
echo $result;
} else {
echo "Tunnel creation failed.\n";
}
} else {
echo "failed;
}
I tried but it did not work. Thank you for your interest .......................................................................................

Answer 1

You can't use the SSH tunnel as a SOCKS proxy with cURL since the tunnel doesn't represent a SOCKS connection.
The resource returned by ssh2_tunnel is a socket stream (like the one returned by fsockopen).
Even with a SOCKS proxy on the remote SSH server (e.g. Tor), I don't think there is a way to get cURL on the local server to go through the SOCKS proxy on the remote server over the tunnel with any combination of cURL proxy options.
Here is an example of using the tunnel:
<?php
$ip_ssh = 'ssh_host';
$username = 'user';
$password = 'password';
$remote_host = 'ipinfo.io';
$connection = ssh2_connect($ip_ssh, 22);
$addr = gethostbyname($remote_host);
if (ssh2_auth_password($connection,$username, $password)) {
if ($tunnel = ssh2_tunnel($connection, $addr, 80)) {
$request = "GET / HTTP/1.0\r\n" .
"Host: $remote_host\r\n" .
"Connection: close\r\n\r\n";
fwrite($tunnel, $request);
$result = '';
while (!feof($tunnel)) {
$result .= fgets($tunnel);
}
echo $result;
} else {
echo "Tunnel creation failed.\n";
}
} else {
echo "failed";
}