Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 *   ownCloud Android client application
 *
 *   @author Bartek Przybylski
 *   @author David A. Velasco
 *   Copyright (C) 2011  Bartek Przybylski
 *   Copyright (C) 2015 ownCloud Inc.
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2,
 *   as published by the Free Software Foundation.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

import java.net.IDN;

import android.annotation.TargetApi;

import android.os.Build;

public class Main {
    /**
     * Converts an internationalized domain name (IDN) in an URL to and from ASCII/Unicode.
     * @param url the URL where the domain name should be converted
     * @param toASCII if true converts from Unicode to ASCII, if false converts from ASCII to Unicode
     * @return the URL containing the converted domain name
     */
    @TargetApi(Build.VERSION_CODES.GINGERBREAD)
    public static String convertIdn(String url, boolean toASCII) {

        String urlNoDots = url;
        String dots = "";
        while (urlNoDots.startsWith(".")) {
            urlNoDots = url.substring(1);
            dots = dots + ".";
        }

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD) {
            // Find host name after '//' or '@'
            int hostStart = 0;
            if (urlNoDots.indexOf("//") != -1) {
                hostStart = url.indexOf("//") + "//".length();
            } else if (url.indexOf("@") != -1) {
                hostStart = url.indexOf("@") + "@".length();
            }

            int hostEnd = url.substring(hostStart).indexOf("/");
            // Handle URL which doesn't have a path (path is implicitly '/')
            hostEnd = (hostEnd == -1 ? urlNoDots.length() : hostStart + hostEnd);

            String host = urlNoDots.substring(hostStart, hostEnd);
            host = (toASCII ? IDN.toASCII(host) : IDN.toUnicode(host));

            return dots + urlNoDots.substring(0, hostStart) + host + urlNoDots.substring(hostEnd);
        } else {
            return dots + url;
        }
    }
}