/*
* Copyright 2008 Federal Chancellery Austria and
* Graz University of Technology
*
* 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 at.gv.egiz.smcc.acos;

import java.io.UnsupportedEncodingException;
import java.util.Arrays;
import java.util.Iterator;

import javax.smartcardio.CardException;
import javax.smartcardio.CommandAPDU;
import javax.smartcardio.ResponseAPDU;

import at.gv.egiz.smcc.AbstractAppl;
import at.gv.egiz.smcc.CardAppl;
import at.gv.egiz.smcc.CardChannelEmul;
import at.gv.egiz.smcc.PIN;

public abstract class ACOSAppl extends AbstractAppl implements CardAppl {

  protected byte[] securityEnv;

  protected byte[] hash;

  @Override
  public ResponseAPDU cmdINTERNAL_AUTHENTICATE(CommandAPDU command, CardChannelEmul channel) throws CardException {
    return new ResponseAPDU(new byte[] {(byte) 0x6D, (byte) 0x00});
  }

  @Override
  public void leaveApplContext() {
    Iterator<PIN> pin = pins.values().iterator();
    while (pin.hasNext()) {
      pin.next().state = PIN.STATE_RESET;
    }
  }
  
  public void setPin(int kid, char[] value) {
    try {
      PIN pin = pins.get(kid);
      if (pin != null) {
        if (value == null) {
          Arrays.fill(pin.pin, (byte) 0x00);
          pin.state = PIN.STATE_PIN_BLOCKED;
        } else {
          int l = pin.pin.length;
          pin.pin = Arrays.copyOf(new String(value).getBytes("ASCII"), l);
        }
      }
    } catch (UnsupportedEncodingException e) {
      throw new RuntimeException(e);
    }
  }

}