com.mysql.cj.protocol.SocketMetadata Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2020, Oracle and/or its affiliates.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 2.0, as published by the
* Free Software Foundation.
*
* This program is also distributed with certain software (including but not
* limited to OpenSSL) that is licensed under separate terms, as designated in a
* particular file or component or in included license documentation. The
* authors of MySQL hereby grant you an additional permission to link the
* program and your derivative works with the separately licensed software that
* they have included with MySQL.
*
* Without limiting anything contained in the foregoing, this file, which is
* part of MySQL Connector/J, is also subject to the Universal FOSS Exception,
* version 1.0, a copy of which can be found at
* http://oss.oracle.com/licenses/universal-foss-exception.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License, version 2.0,
* for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.mysql.cj.protocol;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
import java.net.UnknownHostException;
import com.mysql.cj.Messages;
import com.mysql.cj.Session;
public interface SocketMetadata {
default boolean isLocallyConnected(Session sess) {
String processHost = sess.getProcessHost();
return isLocallyConnected(sess, processHost);
}
default boolean isLocallyConnected(Session sess, String processHost) {
if (processHost != null) {
sess.getLog().logDebug(Messages.getString("SocketMetadata.0", new Object[] { processHost }));
int endIndex = processHost.lastIndexOf(":");
if (endIndex != -1) {
processHost = processHost.substring(0, endIndex);
}
try {
InetAddress[] whereMysqlThinksIConnectedFrom = InetAddress.getAllByName(processHost);
SocketAddress remoteSocketAddr = sess.getRemoteSocketAddress();
if (remoteSocketAddr instanceof InetSocketAddress) {
InetAddress whereIConnectedTo = ((InetSocketAddress) remoteSocketAddr).getAddress();
for (InetAddress hostAddr : whereMysqlThinksIConnectedFrom) {
if (hostAddr.equals(whereIConnectedTo)) {
sess.getLog().logDebug(Messages.getString("SocketMetadata.1", new Object[] { hostAddr, whereIConnectedTo }));
return true;
}
sess.getLog().logDebug(Messages.getString("SocketMetadata.2", new Object[] { hostAddr, whereIConnectedTo }));
}
} else {
sess.getLog().logDebug(Messages.getString("SocketMetadata.3", new Object[] { remoteSocketAddr }));
}
return false;
} catch (UnknownHostException e) {
sess.getLog().logWarn(Messages.getString("Connection.CantDetectLocalConnect", new Object[] { processHost }), e);
return false;
}
}
return false;
}
}