71 lines
2.4 KiB
Java
71 lines
2.4 KiB
Java
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package org.toorcamp.HelloSTK;
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import javacard.framework.APDU;
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import javacard.framework.Applet;
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import javacard.framework.ISOException;
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import sim.toolkit.EnvelopeHandler;
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import sim.toolkit.ProactiveHandler;
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import sim.toolkit.ToolkitConstants;
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import sim.toolkit.ToolkitException;
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import sim.toolkit.ToolkitInterface;
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import sim.toolkit.ToolkitRegistry;
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public class HelloSTK extends Applet implements ToolkitInterface, ToolkitConstants {
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// DON'T DECLARE USELESS INSTANCE VARIABLES! They get saved to the EEPROM,
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// which has a limited number of write cycles.
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private byte helloMenuItem;
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static byte[] welcomeMsg = new byte[] { 'W', 'e', 'l', 'c', 'o', 'm', 'e', ' ',
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't', 'o', ' ', 'T', 'o', 'o', 'r', 'C',
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'a', 'm', 'p', ' ', '2', '0', '1', '2' };
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static byte[] menuItemText = new byte[] { 'H', 'e', 'l', 'l', 'o', ',', ' ', 'S', 'T', 'K'};
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private HelloSTK() {
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// This is the interface to the STK applet registry (which is separate
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// from the JavaCard applet registry!)
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ToolkitRegistry reg = ToolkitRegistry.getEntry();
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// Define the applet Menu Entry
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helloMenuItem = reg.initMenuEntry(menuItemText, (short)0, (short)menuItemText.length,
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PRO_CMD_SELECT_ITEM, false, (byte)0, (short)0);
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}
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// This method is called by the card when the applet is installed. You must
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// instantiate your applet and register it here.
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public static void install(byte[] bArray, short bOffset, byte bLength) {
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HelloSTK applet = new HelloSTK();
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applet.register();
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}
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// This processes APDUs sent directly to the applet. For STK applets, this
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// interface isn't really used.
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public void process(APDU arg0) throws ISOException {
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// ignore the applet select command dispached to the process
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if (selectingApplet())
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return;
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}
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// This processes STK events.
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public void processToolkit(byte event) throws ToolkitException {
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EnvelopeHandler envHdlr = EnvelopeHandler.getTheHandler();
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if (event == EVENT_MENU_SELECTION) {
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byte selectedItemId = envHdlr.getItemIdentifier();
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if (selectedItemId == helloMenuItem) {
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showHello();
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}
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}
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}
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private void showHello() {
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ProactiveHandler proHdlr = ProactiveHandler.getTheHandler();
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proHdlr.initDisplayText((byte)0, DCS_8_BIT_DATA, welcomeMsg, (short)0,
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(short)(welcomeMsg.length));
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proHdlr.send();
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return;
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}
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}
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