PluginTerminal samle: seperation of code for terminal and mock card

samples/PluginTerminal/src/org/simalliance/openmobileapi/service/terminals/SamplePluginTerminal/DummyTerminal.java

@@ -1,34 +1,67 @@
 package org.simalliance.openmobileapi.service.terminals.SamplePluginTerminal;
 
-import java.util.Arrays;
-import java.util.NoSuchElementException;
-
 import android.content.Context;
 import android.util.Log;
-
+import java.util.MissingResourceException;
+import java.util.NoSuchElementException;
 
 public class DummyTerminal {
 
-    private static final String LOG_TAG = "SamplePluginTerminal";
-
-	static final byte[] AID_ACA = {(byte)0xd2, (byte)0x76, (byte)0x00, (byte)0x01, (byte)0x18, (byte)0xaa, (byte)0xff, (byte)0xff, (byte)0x49, (byte)0x10, (byte)0x48, (byte)0x89, (byte)0x01};
-
-    private int channelNr = 0x00;
-
-
-	private static String bytesToString(byte[] bytes) {
-		StringBuffer sb = new StringBuffer();
-		for (byte b : bytes) {
-			sb.append(String.format("%02x ", b & 0xFF));
-		}
-		return sb.toString();
-	}
+    private static final String LOG_TAG = DummyTerminal.class.getSimpleName();
+
+	/**
+     * constructs byte array for C-APDU "MANAGE_CHANNEL (open)"
+     * @return C-APDU
+     */
+    static byte[] commandManageChannel_open() {
+    	return new byte[]{(byte)0x00, (byte)0x70, (byte)0x00, (byte)0x00, (byte)0x01};
+    }
+
+    /**
+     * constructs byte array for C-APDU "MANNAGE_CHANNEL (close)"
+     * @param iChannel
+     * @return C-APDU
+     */
+    static byte[] commandManageChannel_close(int iChannel) {
+    	byte cla = (byte)((iChannel < 4) ? iChannel : 0x40 | (iChannel - 4));
+    	return new byte[]{cla, (byte)0x70, (byte)0x80, (byte)iChannel, (byte)0x00};
+    }
 
+    /**
+     * constructs byte array for C-APDU "SELECT"
+     * @param iChannel
+     * @param aid
+     * @return C-APDU
+     */
+    static byte[] commandSelect(int iChannel, byte[] aid) {
+    	byte cla = (byte)((iChannel < 4) ? iChannel : 0x40 | (iChannel - 4));
+    	byte[] command = new byte[5 + aid.length];
+    	System.arraycopy(new byte[]{cla, (byte)0xa4, (byte)0x04, (byte)0x00, (byte)aid.length}, 0, command, 0, 5);
+    	System.arraycopy(aid, 0, command, 5, aid.length);
+    	return command;
+    }
+
+	MockCard mockCard;
+
+	/**
+	 * @param context
+	 */
     public DummyTerminal(Context context) {
+    	// DummyTerminal contains a MockCard, that simulates a smart card:
+    	mockCard = new MockCard();
+    	// MockCard contains following applet: 
+   	    mockCard.installApplet(new byte[]{(byte)0xA0, (byte)0x00, (byte)0x00, (byte)0x00, (byte)0x03, (byte)0x00, (byte)0x00, (byte)0x00}, 
+    			new Applet(){
+    				@Override
+    				public byte[] process(byte[] command) throws Throwable {
+    					// all this applet does is answer any C-APDU with this R-APDU:
+    					return new byte[] { (byte)0xDE, (byte)0xAD, (byte)0xC0, (byte)0xDE, (byte)(command[0] & 0x03)};
+    				}
+    	});
 	}
 
 	public byte[] getAtr() {
-		return new byte[] { 0x3B, 0x00 };
+		return mockCard.getATR(); 
 	}
 
 	public String getName() {
@@ -47,30 +80,43 @@ public void internalDisconnect() {
 		Log.v(LOG_TAG, "internalDisconnect");
 	}
 
+	byte[] selectResponse;
+
 	public byte[] getSelectResponse() {
-		return new byte[] { 0x01, 0x03, 0x03, 0x07 };
+		return selectResponse;
 	}
 
 	public byte[] internalTransmit(byte[] command) {
-		Log.v(LOG_TAG, "internalTransmit: " + bytesToString(command));
-		return new byte[] { (byte)0xDE, (byte)0xAD, (byte)0xC0, (byte)0xDE, (byte)(command[0] & 0x03), (byte)0x90, (byte)0x00 };
+		Log.v(LOG_TAG, "internalTransmit: " + MockCard.bytesToHexString(command));
+		return mockCard.process(command);
 	}
 
 	public int internalOpenLogicalChannel() {
 		Log.v(LOG_TAG, "internalOpenLogicalChannel: default applet");
-		return ++channelNr;
+		byte[] response = mockCard.process(commandManageChannel_open());
+		if (response.length != 3 || response[1] != (byte)0x90 || response[2] != (byte)0x00) {
+			throw new MissingResourceException("Failed to open channel", "", "");
+		}
+		return response[0];
 	}
 
 	public int internalOpenLogicalChannel(byte[] aid) {
-		Log.v(LOG_TAG, "internalOpenLogicalChannel: " + bytesToString(aid));
-		if (Arrays.equals(aid, AID_ACA))
-			throw new NoSuchElementException("ACA not available");
-		return ++channelNr;
+		Log.v(LOG_TAG, "internalOpenLogicalChannel: AID = " + MockCard.bytesToHexString(aid));
+		int iChannel;
+		iChannel = internalOpenLogicalChannel();
+		byte[] response = mockCard.process(commandSelect(iChannel, aid));
+		selectResponse = response;
+		if (response.length < 2 || response[response.length - 2] != (byte)0x90 || response[response.length - 1] != (byte)0x00) {
+			mockCard.process(commandManageChannel_close(iChannel));
+			throw new NoSuchElementException("Failed to select AID");
+		}
+		return iChannel;
 	}
 
 	public void internalCloseLogicalChannel(int iChannel) {
 		Log.v(LOG_TAG, "internalCloseLogicalChannel: " + iChannel);
-		if (iChannel > 0)
-			--channelNr;
+		if (iChannel < 0) return;
+		mockCard.process(commandManageChannel_close(iChannel));
 	}
+
 }