com.ihelpoo.app.common.DeviceUtil.java Source code

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Here is the source code for com.ihelpoo.app.common.DeviceUtil.java

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/*
 * Copyright (c) 2013 Wobang Network.
 *
 * Licensed under the GNU General Public License, version 2 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 *
 * http://www.gnu.org/licenses/gpl-2.0.html
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.ihelpoo.app.common;

import android.annotation.TargetApi;
import android.os.Build;

import org.apache.http.conn.util.InetAddressUtils;

import java.net.InetAddress;
import java.net.NetworkInterface;
import java.util.Collections;
import java.util.List;

public final class DeviceUtil {

    /**
     * Returns MAC address of the given interface name.
     *
     * @param interfaceName eth0, wlan0 or NULL=use first interface
     * @return mac address or empty string
     */
    @TargetApi(Build.VERSION_CODES.GINGERBREAD)
    public static String getMACAddress(String interfaceName) {
        try {
            List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
            for (NetworkInterface intf : interfaces) {
                if (interfaceName != null) {
                    if (!intf.getName().equalsIgnoreCase(interfaceName))
                        continue;
                }
                byte[] mac = intf.getHardwareAddress();
                if (mac == null)
                    return "";
                StringBuilder buf = new StringBuilder();
                for (int idx = 0; idx < mac.length; idx++)
                    buf.append(String.format("%02X:", mac[idx]));
                if (buf.length() > 0)
                    buf.deleteCharAt(buf.length() - 1);
                return buf.toString();
            }
        } catch (Exception ex) {
        } // for now eat exceptions
        return "";
        /*try {
        // this is so Linux hack
        return loadFileAsString("/sys/class/net/" +interfaceName + "/address").toUpperCase().trim();
        } catch (IOException ex) {
        return null;
        }*/
    }

    /**
     * Get IP address from first non-localhost interface
     *
     * @param useIPv4 true=return ipv4, false=return ipv6
     * @return address or empty string
     */
    public static String getIPAddress(boolean useIPv4) {
        try {
            List<NetworkInterface> interfaces = Collections.list(NetworkInterface.getNetworkInterfaces());
            for (NetworkInterface intf : interfaces) {
                List<InetAddress> addrs = Collections.list(intf.getInetAddresses());
                for (InetAddress addr : addrs) {
                    if (!addr.isLoopbackAddress()) {
                        String sAddr = addr.getHostAddress().toUpperCase();
                        boolean isIPv4 = InetAddressUtils.isIPv4Address(sAddr);
                        if (useIPv4) {
                            if (isIPv4)
                                return sAddr;
                        } else {
                            if (!isIPv4) {
                                int delim = sAddr.indexOf('%'); // drop ip6 port suffix
                                return delim < 0 ? sAddr : sAddr.substring(0, delim);
                            }
                        }
                    }
                }
            }
        } catch (Exception ex) {
        } // for now eat exceptions
        return "";
    }
}