com.njlabs.amrita.aid.util.Identifier.java Source code

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Here is the source code for com.njlabs.amrita.aid.util.Identifier.java

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/*
 * MIT License
 *
 * Copyright (c) 2016 Niranjan Rajendran
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */

package com.njlabs.amrita.aid.util;

import android.annotation.SuppressLint;
import android.content.Context;
import android.net.wifi.WifiManager;
import android.telephony.TelephonyManager;

import org.json.JSONException;
import org.json.JSONObject;

import java.util.UUID;

public class Identifier {

    @SuppressLint("HardwareIds")
    public static String identify(Context context) {
        final TelephonyManager tm = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);

        final String tmDevice, tmSerial, androidId;
        tmDevice = "" + tm.getDeviceId();
        tmSerial = "" + tm.getSimSerialNumber();
        androidId = "" + android.provider.Settings.Secure.getString(context.getContentResolver(),
                android.provider.Settings.Secure.ANDROID_ID);

        UUID deviceUuid = new UUID(androidId.hashCode(), ((long) tmDevice.hashCode() << 32) | tmSerial.hashCode());
        return deviceUuid.toString();
    }

    public static String[] getWifiInfo(Context context) {
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        int RSSI = wifiManager.getConnectionInfo().getRssi();
        String SSID = wifiManager.getConnectionInfo().getSSID().replace("\"", "");
        int level = WifiManager.calculateSignalLevel(RSSI, 5);
        return new String[] { SSID, String.valueOf(level) };
    }

    public static boolean isConnectedToAmrita(Context context) {
        WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
        if (wifiManager != null) {
            String SSID = wifiManager.getConnectionInfo().getSSID().replace("\"", "").trim();
            return SSID.contentEquals("Amrita");
        }
        return false;
    }

    public static String getJsonIdentifier(Context context) {
        try {
            JSONObject jsonObject = new JSONObject();
            jsonObject.put("identifier", Identifier.identify(context));
            jsonObject.put("action", "set_identifier");
            return jsonObject.toString();
        } catch (JSONException e) {
            return "{}";
        }
    }

}