/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* 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.android.tests.bandwidthenforcement;
import android.app.IntentService;
import android.content.Intent;
import android.net.SntpClient;
import android.os.Environment;
import android.util.Log;
import java.io.BufferedWriter;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.HttpURLConnection;
import java.net.InetAddress;
import java.net.URL;
import java.util.Random;
import libcore.io.Streams;
/*
* Test Service that tries to connect to the web via different methods and outputs the results to
* the log and a output file.
*/
public class BandwidthEnforcementTestService extends IntentService {
private static final String TAG = "BandwidthEnforcementTestService";
private static final String OUTPUT_FILE = "BandwidthEnforcementTestServiceOutputFile";
public BandwidthEnforcementTestService() {
super(TAG);
}
@Override
protected void onHandleIntent(Intent intent) {
Log.d(TAG, "Trying to establish a connection.");
// Read output file path from intent.
String outputFile = intent.getStringExtra(OUTPUT_FILE);
dumpResult("testUrlConnection", testUrlConnection(), outputFile);
dumpResult("testUrlConnectionv6", testUrlConnectionv6(), outputFile);
dumpResult("testSntp", testSntp(), outputFile);
dumpResult("testDns", testDns(), outputFile);
}
public static void dumpResult(String tag, boolean result, String outputFile) {
Log.d(TAG, "Test output file: " + outputFile);
try {
if (outputFile != null){
File extStorage = Environment.getExternalStorageDirectory();
File outFile = new File(extStorage, outputFile);
FileWriter writer = new FileWriter(outFile, true);
BufferedWriter out = new BufferedWriter(writer);
if (result) {
out.append(tag + ":fail\n");
} else {
out.append(tag + ":pass\n");
}
out.close();
}
if (result) {
Log.e(TAG, tag + " FAILURE ====================");
Log.e(TAG, tag + " FAILURE was able to use data");
Log.e(TAG, tag + " FAILURE ====================");
} else {
Log.d(TAG, tag + " success; unable to use data");
}
} catch (IOException e) {
Log.e(TAG, "Could not write file " + e.getMessage());
}
}
/**
* Tests a normal http url connection.
* @return true if it was able to connect, false otherwise.
*/
public static boolean testUrlConnection() {
try {
final HttpURLConnection conn = (HttpURLConnection) new URL("http://www.google.com/")
.openConnection();
try {
conn.connect();
final String content = Streams.readFully(
new InputStreamReader(conn.getInputStream()));
if (content.contains("Google")) {
return true;
}
} finally {
conn.disconnect();
}
} catch (IOException e) {
Log.d(TAG, "error: " + e);
}
return false;
}
/**
* Tests a ipv6 http url connection.
* @return true if it was able to connect, false otherwise.
*/
public static boolean testUrlConnectionv6() {
try {
final HttpURLConnection conn = (HttpURLConnection) new URL("http://ipv6.google.com/")
.openConnection();
try {
conn.connect();
final String content = Streams.readFully(
new InputStreamReader(conn.getInputStream()));
if (content.contains("Google")) {
return true;
}
} finally {
conn.disconnect();
}
} catch (IOException e) {
Log.d(TAG, "error: " + e);
}
return false;
}
/**
* Tests to connect via sntp.
* @return true if it was able to connect, false otherwise.
*/
public static boolean testSntp() {
final SntpClient client = new SntpClient();
if (client.requestTime("0.pool.ntp.org", 10000)) {
return true;
}
return false;
}
/**
* Tests dns query.
* @return true if it was able to connect, false otherwise.
*/
public static boolean testDns() {
try {
final DatagramSocket socket = new DatagramSocket();
try {
socket.setSoTimeout(10000);
final byte[] query = buildDnsQuery("www", "android", "com");
final DatagramPacket queryPacket = new DatagramPacket(
query, query.length, InetAddress.parseNumericAddress("8.8.8.8"), 53);
socket.send(queryPacket);
final byte[] reply = new byte[query.length];
final DatagramPacket replyPacket = new DatagramPacket(reply, reply.length);
socket.receive(replyPacket);
return true;
} finally {
socket.close();
}
} catch (IOException e) {
Log.d(TAG, "error: " + e);
}
return false;
}
/**
* Helper method to build a dns query
* @param query the dns strings of the server
* @return the byte array of the dns query to send
* @throws IOException
*/
private static byte[] buildDnsQuery(String... query) throws IOException {
final Random random = new Random();
final ByteArrayOutputStream out = new ByteArrayOutputStream();
final byte[] id = new byte[2];
random.nextBytes(id);
out.write(id);
out.write(new byte[] { 0x01, 0x00 });
out.write(new byte[] { 0x00, 0x01 });
out.write(new byte[] { 0x00, 0x00 });
out.write(new byte[] { 0x00, 0x00 });
out.write(new byte[] { 0x00, 0x00 });
for (String phrase : query) {
final byte[] bytes = phrase.getBytes("US-ASCII");
out.write(bytes.length);
out.write(bytes);
}
out.write(0x00);
out.write(new byte[] { 0x00, 0x01 });
out.write(new byte[] { 0x00, 0x01 });
return out.toByteArray();
}
}
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