SSH-Shortcut-Script

script.php

<?php
/**
 * @author: James Dryden <james@jdrydn.com>
 * @license: MIT
 * @link: http://jdrydn.com
 */
namespace SSH_Server;

/** @noinspection SpellCheckingInspection */
define("FAIL", " \033[0;31;49m[==]\033[0m");
/** @noinspection SpellCheckingInspection */
define("GOOD", " \033[0;32;49m[==]\033[0m");
/** @noinspection SpellCheckingInspection */
define("WARN", " \033[0;33;49m[==]\033[0m");
/** @noinspection SpellCheckingInspection */
define("TASK", " \033[0;34;49m[==]\033[0m");
/** @noinspection SpellCheckingInspection */
define("USER", " \033[1;1;49m[==]\033[0m");

function stdout()
{
	fwrite(STDOUT, implode(" ", array_map(function ($v) { return print_r($v, true); }, func_get_args())) . PHP_EOL);
}

function stderr()
{
	fwrite(STDERR, implode(" ", array_map(function ($v) { return print_r($v, true); }, func_get_args())) . PHP_EOL);
}

try
{
	if (empty($argv[1]))
	{
		stderr(FAIL, "No PWD detected.");
		exit(0);
	}

	/** @noinspection SpellCheckingInspection */
	define("PWD", $argv[1]);
	define("SSH_SERVER_INI", PWD . "/ssh-servers.ini");

	if (!file_exists(SSH_SERVER_INI))
	{
		stderr(FAIL, "No ssh-servers.ini file at", PWD . ". Bye.");
		exit(0);
	}

	if (empty($argv[2]))
	{
		stdout(GOOD, "ssh-servers.ini located at", PWD);
	}

	$servers = parse_ini_file(SSH_SERVER_INI, true);
	$newServers = array(null);
	foreach($servers as $name => $details)
	{
		$server = array_merge(
			array(
				"name" => $name,
				"host" => null,
				"user" => null,
				"pass" => null,
				"key" => null
			),
			$details
		);

		if (empty($server["host"]))
		{
			throw new \Exception("No host for '{$name}'.");
		}
		elseif (empty($server["user"]))
		{
			throw new \Exception("No user for '{$name}'.");
		}
		elseif (empty($server["key"]) && empty($server["pass"]))
		{
			throw new \Exception("No password / key for '{$name}'.");
		}

		if (!empty($server["key"]) && (substr($server["key"], 0, 1) !== "/") && (substr($server["key"], 0, 1) !== "~"))
		{
			$server["key"] = PWD . "/" . $server["key"];
		}

		$newServers[] = $server;
	}
	$servers = $newServers;
	unset($newServers, $server, $name, $details);

	// stdout(GOOD, PWD, $servers);

	if (empty($argv[2]))
	{
		if (count($servers) === 2)
		{
			$server = $servers[1];
			stdout(
				GOOD, "Connecting to", $server["user"] . "@" . $server["host"], "with",
				(!empty($server["key"]) ? "key located at " . $server["key"] : "password '" . $server["pass"] . "'")
			);
			exit(1);
		}

		stdout(PHP_EOL . "  Where would you like to go?");

		for($i = 1; $i < count($servers); $i++)
		{
			$padding = ((count($servers) > 10) && ($i < 10) ? " " : "");
			$server = $servers[$i];

			stdout(
				" \033[1;1;49m[{$i}]\033[0m{$padding}",
				$server["name"] . " (" . $server["user"] . "@" . $server["host"],
				"with a " . (!empty($server["key"]) ? "key" : "password") . ")"
			);
		}

		fwrite(STDOUT, PHP_EOL . "Please choose [1.." . (count($servers) - 1) . "]: ");
		$selection = intval(trim(fgets(STDIN)));

		if (empty($selection))
		{
			stderr(FAIL, "No server selected. Bye.");
			exit(0);
		}
		elseif (($selection <= 0) || ($selection > (count($servers) - 1)))
		{
			stderr(FAIL, "Invalid number entered. Bye.");
			exit(0);
		}

		$server = $servers[$selection];
		stdout(
			GOOD, "Connecting to", $server["user"] . "@" . $server["host"], "with",
			(!empty($server["key"]) ? "key located at " . $server["key"] : "password '" . $server["pass"] . "'")
		);
		exit($selection);
	}
	else
	{
		if (empty($servers[$argv[2]]))
		{
			stderr(FAIL, "Unknown server to connect to.");
			exit(1);
		}

		$server = $servers[$argv[2]];
		stdout(
			"ssh", $server["user"] . "@" . $server["host"] . (!empty($server["key"]) ? " -i '" . $server["key"] . "'" : "")
		);
	}
}
catch (ConfigException $e)
{
	stderr(FAIL, "Invalid ssh-servers.ini:", $e->getMessage());
}
catch (\Exception $e)
{
	stderr(FAIL, (string)$e);
}
exit(0);

script.sh

#!/bin/bash
BASE_PATH=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )

php $BASE_PATH/script.php "$(pwd)"
CODE=$?
if [ $CODE -ne 0 ]; then
	CMD=$(php $BASE_PATH/script.php "$(pwd)" "$CODE")
	exec $CMD
	exit $?
fi
exit 1

SSH-Shortcut-Script.md

SSH-Server

(Migrated from jdrydn/dotfiles)

A simple script to allow me to have multiple SSH server listings without clouding up my SSH config.

Example usage:

$ cd /path/to/a/working/directory
$ sshserver
 [==] ssh-servers.ini located at /Users/James/Documents/KentProjects

  Where would you like to go?
 [1]  name-of-server (root@some.ip.of.that.server with a password)
 [2]  name-of-other-server (some_user@some.ip.of.this.server with a key)
 [3]  name-of-yet-another-server (ubuntu@some.ip.of.the.server with a key)

  Please choose [1..3]: 1
 [==] Connecting to root@some.ip.of.that.server with password 'a1b2c3d4e5f6'
root@12.345.678.9's password:
Welcome to Ubuntu 14.04.1 LTS (GNU/Linux 3.13.0-37-generic x86_64)
# root at name-of-server in ~ [20:14:23]

This requires a specific ini file named ssh-servers.ini in any generic folder containing the following:

[name-of-server]
host = some.ip.of.that.server
user = root
pass = a1b2c3d4e5f6

[name-of-other-server]
host = some.ip.of.this.server
user = some_user
key = other_server_rsa

[name-of-yet-another-server]
host = some.ip.of.the.server
user = ubuntu
key = ~/.ssh/id_rsa

There must be a host, a user field and either a pass (password) or key field, containing a password or a path to a file (respectively). If the key is missing a prefix (either ~/ or /) then the key file is relative to the current working directory.

---

Updates

Due to the difficulties I've been having with trying to get auto-competition working in bash and zsh, this script's usage has had to change. Because typing long names of servers (like name-of-yet-another-server) sucks.

It used to be like:

$ cd /path/to/a/working/directory
$ ssh-server live

$ cd /path/to/another/working/directory
$ ssh-server rs-web1

$ cd /path/to/yet/another/working/directory
$ ssh-server aws-database2

It's now been rewritten to be a welcoming screen. Taken from the welcome screen, obviously.

$ sshserver
 [==] ssh-servers.ini located at /Users/James/Documents/KentProjects

  Where would you like to go?
 [1]  name-of-server (root@some.ip.of.that.server with a password)
 [2]  name-of-other-server (some_user@some.ip.of.this.server with a key)
 [3]  name-of-yet-another-server (ubuntu@some.ip.of.the.server with a key)

  Please choose [1..3]:

And when you select a number, it doesn't run the ssh process under a php process. Instead, the script continues to execute the ssh command so that when ssh exits (for whatever reason) you are returned to the shell.