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Copy pathCVMList.java
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82 lines (73 loc) · 2.65 KB
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/*
* Copyright 2010 sasc
*
* 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 sasc.emv;
import sasc.iso7816.SmartCardException;
import java.io.ByteArrayInputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import sasc.util.Log;
import sasc.util.Util;
/**
* Cardholder Verification Method (CVM) List
* The CVM list specifies acceptable types of cardholder verification
* EMV book 3 section 10.5 (page 119)
*
* @author sasc
*/
public class CVMList {
private LinkedList<CVRule> cvRules = new LinkedList<CVRule>();
private byte[] amountField;
private byte[] secondAmountField;
public CVMList(byte[] data){
if(data.length < 8 ){
throw new IllegalArgumentException("Length is less than 8. Length=" + data.length);
}
ByteArrayInputStream bis = new ByteArrayInputStream(data);
amountField = new byte[4];
secondAmountField = new byte[4];
bis.read(amountField, 0, amountField.length);
bis.read(secondAmountField, 0, secondAmountField.length);
if(bis.available() % 2 != 0 ){
throw new SmartCardException("CMVRules data is not a multiple of 2. Length=" + data.length);
}
while(bis.available() > 0){
byte[] tmp = new byte[2];
bis.read(tmp, 0, tmp.length);
cvRules.add(new CVRule(tmp[0], tmp[1], amountField, secondAmountField));
}
}
@Override
public String toString() {
StringWriter sw = new StringWriter();
dump(new PrintWriter(sw), 0);
return sw.toString();
}
public List<CVRule> getRules() {
return Collections.unmodifiableList(cvRules);
}
public void dump(PrintWriter pw, int indent) {
pw.println(Util.getSpaces(indent) + "Cardholder Verification Method (CVM) List:");
for(CVRule cvRule : cvRules){
cvRule.dump(pw, indent+Log.INDENT_SIZE);
}
}
public static void main(String[] args){
System.out.println(new CVMList(Util.fromHexString("00 00 00 00 00 00 00 00 44 03 41 03 42 03 5e 03 1f 00")).toString());
}
}