Example usage for io.netty.buffer ByteBuf setMedium

Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf setMedium.

Prototype

public abstract ByteBuf setMedium(int index, int value);

Source Link

Document

Sets the specified 24-bit medium integer at the specified absolute index in this buffer.

Usage

From source file:com.tesora.dve.db.mysql.portal.protocol.MSPAuthenticateV10MessageMessage.java

License:Open Source License

public static void write(ByteBuf out, String userName, String userPassword, String salt, Charset charset,
        int mysqlCharsetID, int capabilitiesFlag) {
    ByteBuf leBuf = out.order(ByteOrder.LITTLE_ENDIAN);

    int payloadSizeIndex = leBuf.writerIndex();
    leBuf.writeMedium(0);//from   w w  w  . ja v  a 2s  .c  o  m
    leBuf.writeByte(1);
    int payloadStartIndex = leBuf.writerIndex();
    leBuf.writeInt(capabilitiesFlag);
    leBuf.writeInt(MAX_PACKET_SIZE);
    //      leBuf.writeByte(serverGreeting.getServerCharsetId());
    leBuf.writeByte(mysqlCharsetID);
    leBuf.writeZero(23);
    leBuf.writeBytes(userName.getBytes(charset));
    leBuf.writeZero(1);

    if ((capabilitiesFlag & ClientCapabilities.CLIENT_SECURE_CONNECTION) > 0) {

        byte[] securePassword = computeSecurePassword(userPassword, salt);
        leBuf.writeByte(securePassword.length);
        leBuf.writeBytes(securePassword);
    } else {
        leBuf.writeBytes(userPassword.getBytes(charset));
        leBuf.writeZero(1);
    }

    leBuf.setMedium(payloadSizeIndex, leBuf.writerIndex() - payloadStartIndex);
}

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From source file:com.tesora.dve.db.mysql.portal.protocol.MSPServerGreetingRequestMessage.java

License:Open Source License

public static void write(ChannelHandlerContext ctx, int connectionId, String salt, int serverCapabilities,
        String serverVersion, byte serverCharSet, String pluginData) {
    ByteBuf out = ctx.channel().alloc().heapBuffer(50).order(ByteOrder.LITTLE_ENDIAN);

    String scrambleBuffer1st = salt.substring(0, 8);
    String scrambleBuffer2nd = salt.substring(8) + '\0';
    Integer scrambleBufferSize = scrambleBuffer1st.length() + scrambleBuffer2nd.length();

    ByteBuf serverCapabilitiesBuf = ctx.channel().alloc().heapBuffer(4).order(ByteOrder.LITTLE_ENDIAN);
    try {//from w  ww  .ja va 2 s  .c  o m
        serverCapabilitiesBuf.writeInt(serverCapabilities);
        out.writeMedium(0);
        out.writeByte(0);
        out.writeByte(MYSQL_PROTOCOL_VERSION);

        out.writeBytes(serverVersion.getBytes());
        out.writeZero(1);
        out.writeInt(connectionId);
        out.writeBytes(scrambleBuffer1st.getBytes()); // Salt
        out.writeZero(1);
        out.writeByte(serverCapabilitiesBuf.getByte(0));
        out.writeByte(serverCapabilitiesBuf.getByte(1));

        out.writeByte(serverCharSet);
        out.writeShort(MyProtocolDefs.SERVER_STATUS_AUTOCOMMIT);
        out.writeByte(serverCapabilitiesBuf.getByte(2));
        out.writeByte(serverCapabilitiesBuf.getByte(3));
        out.writeByte(scrambleBufferSize.byteValue());
        out.writeZero(10); // write 10 unused bytes
        out.writeBytes(scrambleBuffer2nd.getBytes()); // Salt

        out.writeBytes(pluginData.getBytes()); // payload
        out.writeZero(1);

        out.setMedium(0, out.writerIndex() - 4);

        ctx.channel().writeAndFlush(out);
    } finally {
        serverCapabilitiesBuf.release();
    }
}

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