/** Return the password associated with the given principal's user name. */
protected String getPassword(String username) {
GenericPrincipal principal = (GenericPrincipal) principals.get(username);
if (principal != null) {
return (principal.getPassword());
} else {
return (null);
}
}
/**
* Return the Principal associated with the specified username and credentials, if there is one;
* otherwise return <code>null</code>.
*
* @param username Username of the Principal to look up
* @param credentials Password or other credentials to use in authenticating this username
*/
public Principal authenticate(String username, String credentials) {
GenericPrincipal principal = (GenericPrincipal) principals.get(username);
boolean validated = false;
if (principal != null) {
if (hasMessageDigest()) {
// Hex hashes should be compared case-insensitive
validated = (digest(credentials).equalsIgnoreCase(principal.getPassword()));
} else {
validated = (digest(credentials).equals(principal.getPassword()));
}
}
if (validated) {
if (debug >= 2) log(sm.getString("memoryRealm.authenticateSuccess", username));
return (principal);
} else {
if (debug >= 2) log(sm.getString("memoryRealm.authenticateFailure", username));
return (null);
}
}