/**
* Returns true if the nonce was generated usig <code>generateNonce</code> and if this is the
* first check for that nonce.
*
* @param nonce the nonce to be checked
* @return true if the nonce if the nonce was generated and this is the first check for that nonce
*/
public boolean isValidNonce(String nonce) {
Long time = nonceCache.remove(nonce);
if (time == null) {
return false;
}
return System.currentTimeMillis() - time < JiveConstants.MINUTE;
}
/**
* Generates a new nonce. The <code>isValidNonce</code> method will return true when using nonces
* generated by this method.
*
* @return a unique nonce
*/
public String generateNonce() {
String nonce = String.valueOf(nonceGenerator.nextLong());
nonceCache.put(nonce, System.currentTimeMillis());
return nonce;
}