package io.undertow.attribute;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.SSLSessionInfo;
import io.undertow.util.FlexBase64;
/**
* @author Stuart Douglas
*/
public class SslSessionIdAttribute implements ExchangeAttribute {
public static final SslSessionIdAttribute INSTANCE = new SslSessionIdAttribute();
@Override
public String readAttribute(HttpServerExchange exchange) {
SSLSessionInfo ssl = exchange.getConnection().getSslSessionInfo();
if(ssl == null || ssl.getSessionId() == null) {
return null;
}
return FlexBase64.encodeString(ssl.getSessionId(), false);
}
@Override
public void writeAttribute(HttpServerExchange exchange, String newValue) throws ReadOnlyAttributeException {
throw new ReadOnlyAttributeException("SSL Session ID", newValue);
}
public static final class Builder implements ExchangeAttributeBuilder {
@Override
public String name() {
return "SSL Session ID";
}
@Override
public ExchangeAttribute build(final String token) {
if (token.equals("%{SSL_SESSION_ID}")) {
return INSTANCE;
}
return null;
}
}
}