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/*
* Copyright 2006-2008 Sxip Identity Corporation
*/
package org.openid4java.consumer;
import com.google.inject.ImplementedBy;
/**
* @author Marius Scurtescu, Johnny Bufu
*/
@ImplementedBy(InMemoryNonceVerifier.class)
public interface NonceVerifier
{
/**
* This noce is valid and it was not seen before. Nonce should be accepted.
*/
public static final int OK = 0;
/**
* The nonce was seen before. Nonce should be rejected.
*/
public static final int SEEN = 1;
/**
* The timestamp of the nonce is invalid, it cannot be parsed. Nonce should be rejected.
*/
public static final int INVALID_TIMESTAMP = 2;
/**
* The timestamp of the nonce is too old and it is not tracked anymore. Nonce should be rejected.
*/
public static final int TOO_OLD = 3;
/**
* Checks if a nonce was seen before. It also checks if the time stamp at the beginning of the noce is valid.
* Also, if old nonces are discarded the it should check if the time stamp for this noce is still valid.
*
* @return {@link #OK} only if this nonce has a valid time stamp, the time stamp did not age and the nonce was not
* seen before.
*/
public int seen(String opUrl, String nonce);
/**
* Returns the expiration timeout for nonces, in seconds.
*/
public int getMaxAge();
/**
* Sets the expiration timeout for nonces, in seconds.
*/
public void setMaxAge(int ageSeconds);
}