[SSR] Icefox

package icefox;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.Scanner;

public class Icefox {
    public static void main(String[] args) throws IOException {
        String[] codigo = new String[525];
        Arrays.fill(codigo, "");
        // CODIGOS 1XX - Informacion
        codigo[100] = "Continue";
        codigo[101] = "Switching Protocols";
        codigo[102] = "Processing";
        codigo[103] = "Early Hints";
        // CODIGOS 2XX - Correcto
        codigo[200] = "OK";
        codigo[201] = "Created";
        codigo[202] = "Accepted";
        codigo[203] = "Non-Authoritative Information";
        codigo[204] = "No Content";
        codigo[205] = "Reset Content";
        codigo[206] = "Partial Content";
        // CODIGOS 3XX - Redireccion
        codigo[300] = "Multiple Choices";
        codigo[301] = "Moved Permanently";
        codigo[302] = "Found";
        codigo[303] = "See Other";
        codigo[304] = "Not Modified";
        codigo[305] = "Use Proxy";
        codigo[306] = "Unused";
        codigo[307] = "Temporary Redirect";
        codigo[308] = "Permanent Redirect";
        // CODIGOS 4XX - Errores del cliente
        codigo[400] = "Bad Request";
        codigo[401] = "Unauthorized";
        codigo[402] = "Payment Required";
        codigo[403] = "Forbidden";
        codigo[404] = "Not Found";
        codigo[405] = "Method Not Allowed";
        codigo[406] = "Not Acceptable";
        codigo[407] = "Proxy Authentication Required";
        codigo[408] = "Request Timeout";
        codigo[409] = "Conflict";
        codigo[410] = "Gone";
        codigo[411] = "Length Required";
        codigo[412] = "Precondition Failed";
        codigo[413] = "Request Entity Too Large";
        codigo[414] = "Request-URI Too Long";
        codigo[415] = "Unsupported Media Type";
        codigo[416] = "Requested Range Not Satisfiable";
        codigo[417] = "Expectation Failed";
        codigo[418] = "I'm a teapot";
        codigo[421] = "Misdirected Request";
        codigo[422] = "Unprocessable Entity";
        codigo[423] = "Locked";
        codigo[425] = "Too Early";
        codigo[426] = "Upgrade Required";
        codigo[428] = "Precondition Required";
        codigo[429] = "Too Many Requests";
        codigo[431] = "Request Header Fields Too Large";
        codigo[451] = "Unavailable For Legal Reasons";
        // CODIGOS 5XX - Errores del servidor
        codigo[500] = "Internal Server Error";
        codigo[501] = "Not Implemented";
        codigo[502] = "Bad Gateway";
        codigo[503] = "Service Unavailable";
        codigo[504] = "Gateway Timeout";
        codigo[505] = "HTTP Version Not Supported";
        codigo[506] = "Variant Also Negotiates";
        codigo[507] = "Insufficient Storage";
        codigo[511] = "Network Authentication Required";
        codigo[520] = "Web server is returning an unknown error";
        codigo[522] = "Connection timed out";
        codigo[524] = "A timeout occurred";

        System.out.println(
                "WWWNNNWWNWWWWNWWWWWWWWWWNKkOXWWWNWWNWWWW\nWWNWWNNNWNWWX0kdoollloodxxodx0XXXWWWWWWW\nWWNWNkxXNKxc,..........,coooodxdxXWWWWWN\nWNWNOc:dd:''';cc;.....',ldoooooooxKNWNWW\nWWWXd:clllooodo,.......'cddoooooood0NWNN\nNNXxccllloooodl;,;;'....,ldoooooodod0NNN\nWXxccclllooodollool,.....,:ooooooddod0NW\nNOl:ccllloooddo:,'.........,:odddooddkXW\nNxccccclllllc::'.............:ooddooddkX\nXd:ccccllc:c,................;oloddddoo0\nNxcccccccccll:'....','.......;dolodooodX\nW0lcccccccllloollloddoc,.....cxoooodooON\nWXxccccccclllc:::::,''......cddooooookXW\nWWKoccccccccll:,.........,:lddoooooodKWN\nWWNKdccccccccclllc:::::clooooooooollkNWW\nWWNWXklcccccccccllllllllloooooollldONWNW\nWWNWNNKkocccccccccccccllllllllldx0XNWNWW\nWWNWNNWNXOxocc::ccccccccccc:coOXNWWWNNWN\nNNWWNWWNNWNX0Okddolllllooddk0XWWNWWNWWWW\nWNWWWWWWNNWNWWWNNXKKKKKXXNNWWWWWNNWWNWWW");

        System.out.println("  _____ _____ ______ ______ ______   __");
        System.out.println(" |_   _/ ____|  ____|  ____/ __ \\ \\ / /");
        System.out.println("   | || |    | |__  | |__ | |  | \\ V / ");
        System.out.println("   | || |    |  __| |  __|| |  | |> <  ");
        System.out.println("  _| || |____| |____| |   | |__| / . \\ ");
        System.out.println(" |_____\\_____|______|_|    \\____/_/ \\_\\ ©\n");

        System.out.println("Bienvenido a Icefox 1.0");

        Scanner sc = new Scanner(System.in);
        System.out.print("Introduzca una URL (o salir): ");
        String dir = sc.nextLine();
        int status;

        while (!dir.equals("salir")) {
            if (dir.equals("icefox")) { // Modo debugging codigos HTTP
                for (int i = 200; i < codigo.length; i++) {
                    if (!codigo[i].equals("")) {
                        try {
                            dir = "https://httpstat.us/" + i;
                            System.out.println("Probando " + dir);
                            URL url = new URL(dir);
                            HttpURLConnection con = (HttpURLConnection) url.openConnection();
                            con.setRequestMethod("GET");
                            status = con.getResponseCode();
                            System.out.println("El servidor a devuelto el codigo " + status + ": " + codigo[status]);
                            BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
                            String inputLine;
                            StringBuffer contenido = new StringBuffer();
                            while ((inputLine = in.readLine()) != null) {
                                contenido.append(inputLine);
                            }
                            in.close();
                            con.disconnect();
                            System.out.println(contenido);
                        } catch (Exception e) {
                            System.out.println("Error: " + e);
                        }
                    }
                }
            } else { // Si se introduce una URL
                try {
                    URL url = new URL(dir);
                    HttpURLConnection con = (HttpURLConnection) url.openConnection();
                    con.setRequestMethod("GET"); // Le hace un HTTP GET
                    status = con.getResponseCode();
                    System.out.println("El servidor a devuelto el codigo " + status + ": " + codigo[status]);

                    if (status == 200) { // Si el servidor da el OK
                        System.out.println("Descargando archivo html");

                        // Empieza a descargar el html
                        BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
                        String inputLine;
                        StringBuffer contenido = new StringBuffer();
                        while ((inputLine = in.readLine()) != null) {
                            contenido.append(inputLine);
                        }
                        in.close(); // Cierra el buffer
                        con.disconnect(); // Cierra la conexión

                        String res = contenido.toString().replace("><", ">\n<"); // Saltos de linea

                        System.out.print("¿Cuanto quiere ver del html(0=todo)? ");
                        try{
                            int t = Integer.parseInt(sc.nextLine());
                            if (t <= 0) {
                                System.out.println(res);
                            } else {
                                System.out.println(res.substring(0, t));
                            }
                        } catch( NumberFormatException e ){
                            System.out.println("Eso no es un numero");
                        }

                    }
                } catch (MalformedURLException e) { // Captura URLs mal escritas
                    System.out.println("Revisa la URL");
                }
            }
            System.out.print("Introduzca una URL (o salir): ");
            dir = sc.nextLine();
        }
        sc.close();
    }
}