private PGStream enableSSL(PGStream pgStream, boolean requireSSL, Properties info, Logger logger)
throws IOException, SQLException {
if (logger.logDebug()) logger.debug(" FE=> SSLRequest");
// Send SSL request packet
pgStream.SendInteger4(8);
pgStream.SendInteger2(1234);
pgStream.SendInteger2(5679);
pgStream.flush();
// Now get the response from the backend, one of N, E, S.
int beresp = pgStream.ReceiveChar();
switch (beresp) {
case 'E':
if (logger.logDebug()) logger.debug(" <=BE SSLError");
// Server doesn't even know about the SSL handshake protocol
if (requireSSL)
throw new PSQLException(
GT.tr("The server does not support SSL."), PSQLState.CONNECTION_FAILURE);
// We have to reconnect to continue.
pgStream.close();
return new PGStream(pgStream.getHost(), pgStream.getPort());
case 'N':
if (logger.logDebug()) logger.debug(" <=BE SSLRefused");
// Server does not support ssl
if (requireSSL)
throw new PSQLException(
GT.tr("The server does not support SSL."), PSQLState.CONNECTION_FAILURE);
return pgStream;
case 'S':
if (logger.logDebug()) logger.debug(" <=BE SSLOk");
// Server supports ssl
Driver.makeSSL(pgStream, info, logger);
return pgStream;
default:
throw new PSQLException(
GT.tr("An error occured while setting up the SSL connection."),
PSQLState.CONNECTION_FAILURE);
}
}
private void sendStartupPacket(PGStream pgStream, String[][] params, Logger logger)
throws IOException {
if (logger.logDebug()) {
String details = "";
for (int i = 0; i < params.length; ++i) {
if (i != 0) details += ", ";
details += params[i][0] + "=" + params[i][1];
}
logger.debug(" FE=> StartupPacket(" + details + ")");
}
/*
* Precalculate message length and encode params.
*/
int length = 4 + 4;
byte[][] encodedParams = new byte[params.length * 2][];
for (int i = 0; i < params.length; ++i) {
encodedParams[i * 2] = params[i][0].getBytes("US-ASCII");
encodedParams[i * 2 + 1] = params[i][1].getBytes("US-ASCII");
length += encodedParams[i * 2].length + 1 + encodedParams[i * 2 + 1].length + 1;
}
length += 1; // Terminating \0
/*
* Send the startup message.
*/
pgStream.SendInteger4(length);
pgStream.SendInteger2(3); // protocol major
pgStream.SendInteger2(0); // protocol minor
for (int i = 0; i < encodedParams.length; ++i) {
pgStream.Send(encodedParams[i]);
pgStream.SendChar(0);
}
pgStream.SendChar(0);
pgStream.flush();
}