/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionClosed(org.apache
* .mina.core.session.IoSession)
*/
public void sessionClosed(IoSession session) throws Exception {
log.info("closed stub: " + session.getRemoteAddress());
TConn d = (TConn) session.getAttribute("conn");
if (d != null) {
d.close();
session.removeAttribute("conn");
}
}
/**
* Instantiates a new MDC server.
*
* @param host the host
* @param port the port
*/
protected MDCServer(String host, int port) {
_conf = Config.getConfig();
address = (host == null) ? new InetSocketAddress(port) : new InetSocketAddress(host, port);
/** initialize app command */
Command.init();
/** initialize the connection center */
TConnCenter.init(_conf, port);
synchronized (_conf) {
/** load public key from database */
TConn.pub_key = SystemConfig.s("pub_key", null);
TConn.pri_key = SystemConfig.s("pri_key", null);
/** initialize the RSA key, hardcode 2048 bits */
if (TConn.pub_key == null
|| TConn.pri_key == null
|| "".equals(TConn.pub_key)
|| "".equals(TConn.pri_key)) {
/** print out the old state */
log.warn(
"the pub_key or pri_key missed, the old state are pub_key:["
+ TConn.pub_key
+ "], pri_key:["
+ TConn.pri_key
+ "]");
Key k = RSA.generate(2048);
TConn.pri_key = k.pri_key;
TConn.pub_key = k.pub_key;
/** print out the new public key */
log.warn("create new RSA key pair, pub_key:[" + TConn.pub_key + ']');
/** set back in database */
SystemConfig.setConfig("pri_key", TConn.pri_key);
SystemConfig.setConfig("pub_key", TConn.pub_key);
}
MAX_SIZE = SystemConfig.i("mdc.max_size", MAX_SIZE);
}
}
/*
* (non-Javadoc)
*
* @see
* org.apache.mina.core.service.IoHandlerAdapter#sessionCreated(org.apache
* .mina.core.session.IoSession)
*/
public void sessionCreated(IoSession session) throws Exception {
log.info("stub created:" + session.getRemoteAddress());
Counter.add("mdc", "connection", 1);
TConn d = new TConn(session);
d.set("x-forwarded-for", session.getRemoteAddress().toString());
session.setAttribute("conn", d);
}
/** Close. */
public void close() {
if (selector != null) {
selector.wakeup();
try {
selector.close();
} catch (IOException e1) {
log.warn("close selector fails", e1);
} finally {
selector = null;
}
}
if (server != null) {
try {
server.socket().close();
server.close();
} catch (IOException e) {
log.warn("close socket server fails", e);
} finally {
server = null;
}
}
}
/**
* Service.
*
* @param o the o
* @param session the session
*/
void service(IoBuffer o, IoSession session) {
try {
// System.out.println(o.remaining() + "/" + o.capacity());
session.setAttribute("last", System.currentTimeMillis());
SimpleIoBuffer in = (SimpleIoBuffer) session.getAttribute("buf");
if (in == null) {
in = SimpleIoBuffer.create(4096);
session.setAttribute("buf", in);
}
byte[] data = new byte[o.remaining()];
o.get(data);
in.append(data);
// log.debug("recv: " + data.length + ", " +
// session.getRemoteAddress());
while (in.length() > 5) {
in.mark();
/**
* Byte 1: head of the package<br>
* bit 7-6: "01", indicator of MDC<br>
* bit 5: encrypt indicator, "0": no; "1": encrypted<br>
* bit 4: zip indicator, "0": no, "1": ziped<br>
* bit 0-3: reserved<br>
* Byte 2-5: length of data<br>
* Byte[…]: data array<br>
*/
byte head = in.read();
/** test the head indicator, if not correct close it */
if ((head & 0xC0) != 0x40) {
log.info("flag is not correct! flag:" + head + ",from: " + session.getRemoteAddress());
session.write("error.head");
session.close(true);
return;
}
int len = in.getInt();
if (len <= 0 || len > MAX_SIZE) {
log.error(
"mdcserver.Wrong lendth: "
+ len
+ "/"
+ MAX_SIZE
+ " - "
+ session.getRemoteAddress());
session.write("error.packet.size");
session.close(true);
break;
}
// log.info("packet.len:" + len + ", len in buffer:" +
// in.length());
if (in.length() < len) {
in.reset();
break;
} else {
// do it
byte[] b = new byte[len];
in.read(b);
// log.info("stub.package.size: " + len + ", head:" + head +
// ", cmd:" + Bean.toString(b));
// log.info("stub.package.size: " + len + ", head:" + head);
/** test the zip flag */
if ((head & 0x10) != 0) {
b = Zip.unzip(b);
}
final TConn d = (TConn) session.getAttribute("conn");
if (d != null) {
/** test the encrypted flag */
if ((head & 0x20) != 0) {
b = DES.decode(b, d.deskey);
}
final byte[] bb = b;
/** test if the packet is for mdc or app */
new WorkerTask() {
@Override
public void onExecute() {
d.process(bb);
}
}.schedule(0);
session.setAttribute("last", System.currentTimeMillis());
} else {
session.write("error.getconnection");
log.error("error to get connection: " + session.getRemoteAddress());
session.close(true);
}
}
}
} catch (Throwable e) {
log.error("closing stub: " + session.getRemoteAddress(), e);
session.write("exception." + e.getMessage());
session.close(true);
}
}
