package io.undertow.attribute;
import io.undertow.security.api.SecurityContext;
import io.undertow.server.HttpServerExchange;
public class AuthenticationTypeExchangeAttribute implements ExchangeAttribute {
public static final String TOKEN = "%{AUTHENTICATION_TYPE}";
public static final ExchangeAttribute INSTANCE = new AuthenticationTypeExchangeAttribute();
@Override
public String readAttribute(HttpServerExchange exchange) {
SecurityContext sc = exchange.getSecurityContext();
if(sc == null) {
return null;
}
return sc.getMechanismName();
}
@Override
public void writeAttribute(HttpServerExchange exchange, String newValue) throws ReadOnlyAttributeException {
throw new ReadOnlyAttributeException("Authentication Type", newValue);
}
public static final class Builder implements ExchangeAttributeBuilder {
@Override
public String name() {
return "Authentication Type";
}
@Override
public ExchangeAttribute build(final String token) {
if (token.equals(TOKEN)) {
return INSTANCE;
}
return null;
}
@Override
public int priority() {
return 0;
}
}
}