package ca.carleton.gcrc.couch.user.token;
import java.util.Date;
import ca.carleton.gcrc.security.ber.BerConstructed;
import ca.carleton.gcrc.security.ber.BerFactory;
import ca.carleton.gcrc.security.ber.BerImplementation;
import ca.carleton.gcrc.security.ber.BerInteger;
import ca.carleton.gcrc.security.ber.BerObject;
import ca.carleton.gcrc.security.ber.BerString;
import ca.carleton.gcrc.security.ber.encoding.BerEncoder;
public class CreationToken implements Token {
static public CreationToken decode(BerConstructed outer) throws Exception {
try {
// Check that we have enough members
if( outer.size() < 2 ){
throw new Exception("Not enough components");
}
CreationToken token = new CreationToken();
// Get email address
{
BerObject emailObj = outer.get(0);
if( false == (emailObj instanceof BerString) ){
throw new Exception("Invalid email address");
}
String email = ((BerString)emailObj).getValue();
token.setEmailAddress(email);
}
// Get expiry
{
BerObject expiryObj = outer.get(1);
if( false == (expiryObj instanceof BerInteger) ){
throw new Exception("Invalid expiry date");
}
long expiry = ((BerInteger)expiryObj).getValue();
Date expiryDate = new Date(expiry);
token.setExpiry(expiryDate);
}
return token;
} catch(Exception e) {
throw new Exception("Error while decoding user creation token", e);
}
}
private String emailAddress;
private Date expiry;
public CreationToken(){
}
public String getEmailAddress() {
return emailAddress;
}
public void setEmailAddress(String emailAddress) {
this.emailAddress = emailAddress;
}
public Date getExpiry() {
return expiry;
}
public void setExpiry(Date expiry) {
this.expiry = expiry;
}
@Override
public byte[] encode() throws Exception {
BerFactory factory = new BerImplementation();
BerConstructed outer = factory.createConstructed(
BerObject.TypeClass.APPLICATION
,Token.APPLICATION_TYPE_CREATION
);
BerString email = factory.createUTF8String();
email.setValue(emailAddress);
outer.add(email);
long expiryMs = expiry.getTime();
Long expiryLong = new Long(expiryMs);
BerInteger date = factory.createInteger();
date.setValue( expiryLong );
outer.add(date);
byte[] result = BerEncoder.encode(outer);
return result;
}
}