1/* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package com.android.tests.bandwidthenforcement; 17 18import android.app.IntentService; 19import android.content.Intent; 20import android.net.SntpClient; 21import android.os.Environment; 22import android.util.Log; 23 24import java.io.BufferedWriter; 25import java.io.ByteArrayOutputStream; 26import java.io.File; 27import java.io.FileWriter; 28import java.io.IOException; 29import java.io.InputStreamReader; 30import java.net.DatagramPacket; 31import java.net.DatagramSocket; 32import java.net.HttpURLConnection; 33import java.net.InetAddress; 34import java.net.URL; 35import java.util.Random; 36 37import libcore.io.Streams; 38 39/* 40 * Test Service that tries to connect to the web via different methods and outputs the results to 41 * the log and a output file. 42 */ 43public class BandwidthEnforcementTestService extends IntentService { 44 private static final String TAG = "BandwidthEnforcementTestService"; 45 private static final String OUTPUT_FILE = "BandwidthEnforcementTestServiceOutputFile"; 46 47 public BandwidthEnforcementTestService() { 48 super(TAG); 49 } 50 51 @Override 52 protected void onHandleIntent(Intent intent) { 53 Log.d(TAG, "Trying to establish a connection."); 54 // Read output file path from intent. 55 String outputFile = intent.getStringExtra(OUTPUT_FILE); 56 dumpResult("testUrlConnection", testUrlConnection(), outputFile); 57 dumpResult("testUrlConnectionv6", testUrlConnectionv6(), outputFile); 58 dumpResult("testSntp", testSntp(), outputFile); 59 dumpResult("testDns", testDns(), outputFile); 60 } 61 62 public static void dumpResult(String tag, boolean result, String outputFile) { 63 Log.d(TAG, "Test output file: " + outputFile); 64 try { 65 if (outputFile != null){ 66 File extStorage = Environment.getExternalStorageDirectory(); 67 File outFile = new File(extStorage, outputFile); 68 FileWriter writer = new FileWriter(outFile, true); 69 BufferedWriter out = new BufferedWriter(writer); 70 if (result) { 71 out.append(tag + ":fail\n"); 72 } else { 73 out.append(tag + ":pass\n"); 74 } 75 out.close(); 76 } 77 if (result) { 78 Log.e(TAG, tag + " FAILURE ===================="); 79 Log.e(TAG, tag + " FAILURE was able to use data"); 80 Log.e(TAG, tag + " FAILURE ===================="); 81 } else { 82 Log.d(TAG, tag + " success; unable to use data"); 83 } 84 } catch (IOException e) { 85 Log.e(TAG, "Could not write file " + e.getMessage()); 86 } 87 } 88 89 /** 90 * Tests a normal http url connection. 91 * @return true if it was able to connect, false otherwise. 92 */ 93 public static boolean testUrlConnection() { 94 try { 95 final HttpURLConnection conn = (HttpURLConnection) new URL("http://www.google.com/") 96 .openConnection(); 97 try { 98 conn.connect(); 99 final String content = Streams.readFully( 100 new InputStreamReader(conn.getInputStream())); 101 if (content.contains("Google")) { 102 return true; 103 } 104 } finally { 105 conn.disconnect(); 106 } 107 } catch (IOException e) { 108 Log.d(TAG, "error: " + e); 109 } 110 return false; 111 } 112 113 /** 114 * Tests a ipv6 http url connection. 115 * @return true if it was able to connect, false otherwise. 116 */ 117 public static boolean testUrlConnectionv6() { 118 try { 119 final HttpURLConnection conn = (HttpURLConnection) new URL("http://ipv6.google.com/") 120 .openConnection(); 121 try { 122 conn.connect(); 123 final String content = Streams.readFully( 124 new InputStreamReader(conn.getInputStream())); 125 if (content.contains("Google")) { 126 return true; 127 } 128 } finally { 129 conn.disconnect(); 130 } 131 } catch (IOException e) { 132 Log.d(TAG, "error: " + e); 133 } 134 return false; 135 } 136 137 /** 138 * Tests to connect via sntp. 139 * @return true if it was able to connect, false otherwise. 140 */ 141 public static boolean testSntp() { 142 final SntpClient client = new SntpClient(); 143 if (client.requestTime("0.pool.ntp.org", 10000)) { 144 return true; 145 } 146 return false; 147 } 148 149 /** 150 * Tests dns query. 151 * @return true if it was able to connect, false otherwise. 152 */ 153 public static boolean testDns() { 154 try { 155 final DatagramSocket socket = new DatagramSocket(); 156 try { 157 socket.setSoTimeout(10000); 158 159 final byte[] query = buildDnsQuery("www", "android", "com"); 160 final DatagramPacket queryPacket = new DatagramPacket( 161 query, query.length, InetAddress.parseNumericAddress("8.8.8.8"), 53); 162 socket.send(queryPacket); 163 164 final byte[] reply = new byte[query.length]; 165 final DatagramPacket replyPacket = new DatagramPacket(reply, reply.length); 166 socket.receive(replyPacket); 167 return true; 168 169 } finally { 170 socket.close(); 171 } 172 } catch (IOException e) { 173 Log.d(TAG, "error: " + e); 174 } 175 return false; 176 } 177 178 /** 179 * Helper method to build a dns query 180 * @param query the dns strings of the server 181 * @return the byte array of the dns query to send 182 * @throws IOException 183 */ 184 private static byte[] buildDnsQuery(String... query) throws IOException { 185 final Random random = new Random(); 186 final ByteArrayOutputStream out = new ByteArrayOutputStream(); 187 188 final byte[] id = new byte[2]; 189 random.nextBytes(id); 190 191 out.write(id); 192 out.write(new byte[] { 0x01, 0x00 }); 193 out.write(new byte[] { 0x00, 0x01 }); 194 out.write(new byte[] { 0x00, 0x00 }); 195 out.write(new byte[] { 0x00, 0x00 }); 196 out.write(new byte[] { 0x00, 0x00 }); 197 198 for (String phrase : query) { 199 final byte[] bytes = phrase.getBytes("US-ASCII"); 200 out.write(bytes.length); 201 out.write(bytes); 202 } 203 out.write(0x00); 204 205 out.write(new byte[] { 0x00, 0x01 }); 206 out.write(new byte[] { 0x00, 0x01 }); 207 208 return out.toByteArray(); 209 } 210} 211