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      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  */
     16 
     17 package com.android.nfc.snep;
     18 
     19 import java.io.IOException;
     20 
     21 import com.android.nfc.snep.SnepClient;
     22 import com.android.nfc.snep.SnepMessage;
     23 import com.android.nfc.snep.SnepServer;
     24 
     25 import android.nfc.NdefMessage;
     26 import android.nfc.NdefRecord;
     27 import android.test.AndroidTestCase;
     28 import android.util.Log;
     29 
     30 import java.lang.StringBuffer;
     31 import java.util.Arrays;
     32 import java.util.HashMap;
     33 import java.util.Map;
     34 
     35 /**
     36  * Uses the Android testing instrumentation framework to run a listening SNEP
     37  * server.
     38  */
     39 public class SnepValidationServerTests extends AndroidTestCase implements SnepServer.Callback {
     40     static final int SERVICE_SAP = 0x11;
     41     static final String SERVICE_NAME = "urn:nfc:xsn:nfc-forum.org:snep-validation";
     42     private static final String TAG = "nfcTest";
     43 
     44     private Map<ByteArrayWrapper, NdefMessage> mStoredNdef =
     45         new HashMap<ByteArrayWrapper, NdefMessage>();
     46     private static final ByteArrayWrapper DEFAULT_NDEF = new ByteArrayWrapper(new byte[] {});
     47 
     48     public void setUp() {
     49         Log.d(TAG, "Waiting for service to restart...");
     50         try {
     51             Thread.sleep(6000);
     52         } catch (InterruptedException e) {
     53         }
     54         Log.d(TAG, "Running test.");
     55     }
     56 
     57     public void testStartSnepServer() throws IOException {
     58         SnepServer server = new SnepServer(SERVICE_NAME, SERVICE_SAP, this);
     59         server.start();
     60 
     61         try {
     62             Thread.sleep(24 * 60 * 60 * 1000);
     63         } catch (InterruptedException e) {
     64 
     65         }
     66     }
     67 
     68     private NdefMessage getSmallNdef() {
     69         NdefRecord rec = new NdefRecord(NdefRecord.TNF_ABSOLUTE_URI, NdefRecord.RTD_URI,
     70                 new byte[0], "http://android.com".getBytes());
     71         return new NdefMessage(new NdefRecord[] { rec });
     72     }
     73 
     74     private NdefMessage getLargeNdef() {
     75         int size = 3000;
     76         StringBuffer string = new StringBuffer(size);
     77         for (int i = 0; i < size; i++) {
     78             string.append('A' + (i % 26));
     79         }
     80         NdefRecord rec = new NdefRecord(NdefRecord.TNF_MIME_MEDIA, "text/plain".getBytes(),
     81                 new byte[0], string.toString().getBytes());
     82         return new NdefMessage(new NdefRecord[] { rec });
     83     }
     84 
     85     static class ByteArrayWrapper {
     86         private final byte[] data;
     87 
     88         public ByteArrayWrapper(byte[] data) {
     89             if (data == null) {
     90                 throw new NullPointerException();
     91             }
     92             this.data = data;
     93         }
     94 
     95         @Override
     96         public boolean equals(Object other) {
     97             if (!(other instanceof ByteArrayWrapper)) {
     98                 return false;
     99             }
    100             return Arrays.equals(data, ((ByteArrayWrapper) other).data);
    101         }
    102 
    103         @Override
    104         public int hashCode() {
    105             return Arrays.hashCode(data);
    106         }
    107     }
    108 
    109     @Override
    110     public SnepMessage doPut(NdefMessage msg) {
    111         Log.d(TAG, "doPut()");
    112         NdefRecord record = msg.getRecords()[0];
    113         ByteArrayWrapper id = (record.getId().length > 0) ?
    114                 new ByteArrayWrapper(record.getId()) : DEFAULT_NDEF;
    115         mStoredNdef.put(id, msg);
    116         return SnepMessage.getMessage(SnepMessage.RESPONSE_SUCCESS);
    117     }
    118 
    119     @Override
    120     public SnepMessage doGet(int acceptableLength, NdefMessage msg) {
    121         Log.d(TAG, "doGet()");
    122         NdefRecord record = msg.getRecords()[0];
    123         ByteArrayWrapper id = (record.getId().length > 0) ?
    124                 new ByteArrayWrapper(record.getId()) : DEFAULT_NDEF;
    125         NdefMessage result = mStoredNdef.get(id);
    126 
    127         if (result == null) {
    128             return SnepMessage.getMessage(SnepMessage.RESPONSE_NOT_FOUND);
    129         }
    130         if (acceptableLength < result.toByteArray().length) {
    131             return SnepMessage.getMessage(SnepMessage.RESPONSE_EXCESS_DATA);
    132         }
    133         return SnepMessage.getSuccessResponse(result);
    134     }
    135 }
    136