port_connection_check

#!/usr/bin/env php
<?php

require_once("classes/CLI.php");

use App\Cli;

execute($argv);

function execute($arguments)
{
    if (count($arguments) < 2) {
        Cli::print_error("invalid command!\n");
        cli_help();
        die;
    }

    if (count($arguments) == 2 && in_array("--help", $arguments)) {
        cli_help();
        die;
    }

    if (count($arguments) == 2) {
        print("Port 80 status : ");
        check_port($arguments[1], 80) ? Cli::print_success("open") : Cli::print_error("close");
        print("\n");
        die;
    }

    if ((count($arguments) == 3) && (in_array("-s", $arguments))) {
        print("Port 443 status : ");
        check_port($arguments[1], 443) ? Cli::print_success("open") : Cli::print_error("close");
        print("\n");
        die;
    }

    if (count($arguments) == 3) {
        print("Port " . $arguments[2] . " status : ");
        check_port($arguments[1], $arguments[2]) ? Cli::print_success("open") : Cli::print_error("close");
        print("\n");
        die;
    }

    if (count($arguments) == 4) {
        for ($port = $arguments[2]; $port <= $arguments[3]; $port++) {
            print("# " . $port . " : ");
            check_port($arguments[1], $port) ? Cli::print_success("open") : Cli::print_error("close");
            print("\n");
        }
        die;
    }

    if (count($arguments) == 5 && in_array("-o", $arguments)) {
        print("- open ports");
        print("\n");
        for ($port = $arguments[2]; $port <= $arguments[3]; $port++) {
            if (check_port($arguments[1], $port)) {
                Cli::print_success("# " . $port);
                print("\n");
            }
        }
        die;
    }

    if (count($arguments) == 5 && in_array("-c", $arguments)) {
        print("- close ports");
        print("\n");
        for ($port = $arguments[2]; $port <= $arguments[3]; $port++) {
            if (!check_port($arguments[1], $port)) {
                Cli::print_error("# " . $port);
                print("\n");
            }
        }
        die;
    }
}

function cli_help()
{
    print("[domain] [option]\n");
    print("\tdefault port : 80\n");
    print("\t-s domain with ssl , port 443\n");

    print("[domain] [port]\n");

    print("[domain] [start_port] [end_port]\n");
    print("\tdefault get all ports with status\n");
    print("\t-o get opened ports\n");
    print("\t-c get closed ports\n");
}

function check_port($domain, $port, $timeout = 1)
{
    $fp = @fsockopen($domain, $port, $errno, $errstr, $timeout);

    if ($fp) {
        fclose($fp);
        return true;
    }

    return false;
}