/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.eclipse.org/legal/cpl-v10.html
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* Copyright (C) 2007 Damian Steer <pldms@mac.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
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* use your version of this file under the terms of the CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.ext.socket;
import java.io.IOException;
import java.net.ConnectException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.PortUnreachableException;
import java.net.SocketException;
import java.net.MulticastSocket;
import java.net.UnknownHostException;
import java.net.DatagramPacket;
import java.nio.ByteBuffer;
import java.nio.channels.DatagramChannel;
import java.nio.channels.SelectionKey;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyFixnum;
import org.jruby.RubyModule;
import org.jruby.RubyNumeric;
import org.jruby.RubyString;
import org.jruby.anno.JRubyClass;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Block;
import org.jruby.runtime.ObjectAllocator;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.Visibility;
import org.jruby.runtime.builtin.IRubyObject;
import org.jruby.util.ByteList;
import org.jruby.util.io.ModeFlags;
import org.jruby.util.io.ChannelDescriptor;
/**
* @author <a href="mailto:pldms@mac.com">Damian Steer</a>
*/
@JRubyClass(name="UDPSocket", parent="IPSocket")
public class RubyUDPSocket extends RubyIPSocket {
static void createUDPSocket(Ruby runtime) {
RubyClass rb_cUDPSocket = runtime.defineClass("UDPSocket", runtime.fastGetClass("IPSocket"), UDPSOCKET_ALLOCATOR);
rb_cUDPSocket.includeModule(runtime.fastGetClass("Socket").fastGetConstant("Constants"));
rb_cUDPSocket.defineAnnotatedMethods(RubyUDPSocket.class);
runtime.getObject().fastSetConstant("UDPsocket", rb_cUDPSocket);
}
private static ObjectAllocator UDPSOCKET_ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klass) {
return new RubyUDPSocket(runtime, klass);
}
};
public RubyUDPSocket(Ruby runtime, RubyClass type) {
super(runtime, type);
}
@JRubyMethod(visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context) {
try {
DatagramChannel channel = DatagramChannel.open();
initSocket(context.getRuntime(), new ChannelDescriptor(channel, new ModeFlags(ModeFlags.RDWR)));
} catch (org.jruby.util.io.InvalidValueException ex) {
throw context.getRuntime().newErrnoEINVALError();
} catch (ConnectException e) {
throw context.getRuntime().newErrnoECONNREFUSEDError();
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "initialize: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "initialize: name or service not known");
}
return this;
}
@JRubyMethod(visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context, IRubyObject protocol) {
// we basically ignore protocol. let someone report it...
return initialize(context);
}
@Deprecated
public IRubyObject bind(IRubyObject host, IRubyObject port) {
return bind(getRuntime().getCurrentContext(), host, port);
}
@JRubyMethod
public IRubyObject bind(ThreadContext context, IRubyObject host, IRubyObject port) {
InetSocketAddress addr = null;
try {
if (host.isNil()
|| ((host instanceof RubyString)
&& ((RubyString) host).isEmpty())) {
// host is nil or the empty string, bind to INADDR_ANY
addr = new InetSocketAddress(RubyNumeric.fix2int(port));
} else if (host instanceof RubyFixnum) {
// passing in something like INADDR_ANY
int intAddr = RubyNumeric.fix2int(host);
RubyModule socketMod = context.getRuntime().getModule("Socket");
if (intAddr == RubyNumeric.fix2int(socketMod.fastGetConstant("INADDR_ANY"))) {
addr = new InetSocketAddress(InetAddress.getByName("0.0.0.0"), RubyNumeric.fix2int(port));
}
} else {
// passing in something like INADDR_ANY
addr = new InetSocketAddress(InetAddress.getByName(host.convertToString().toString()), RubyNumeric.fix2int(port));
}
if (this.multicastStateManager == null) {
((DatagramChannel) this.getChannel()).socket().bind(addr);
} else {
this.multicastStateManager.rebindToPort(RubyNumeric.fix2int(port));
}
return RubyFixnum.zero(context.getRuntime());
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} catch (SocketException e) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} catch (Error e) {
// Workaround for a bug in Sun's JDK 1.5.x, see
// http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6303753
if (e.getCause() instanceof SocketException) {
throw sockerr(context.getRuntime(), "bind: name or service not known");
} else {
throw e;
}
}
}
@Deprecated
public IRubyObject connect(IRubyObject host, IRubyObject port) {
return connect(getRuntime().getCurrentContext(), host, port);
}
@JRubyMethod
public IRubyObject connect(ThreadContext context, IRubyObject host, IRubyObject port) {
try {
InetSocketAddress addr;
addr = new InetSocketAddress(InetAddress.getByName(host.convertToString().toString()), RubyNumeric.fix2int(port));
((DatagramChannel) this.getChannel()).connect(addr);
return RubyFixnum.zero(context.getRuntime());
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "connect: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "connect: name or service not known");
}
}
@Deprecated
public IRubyObject recvfrom(IRubyObject[] args) {
return recvfrom(getRuntime().getCurrentContext(), args);
}
@JRubyMethod(required = 1, rest = true)
public IRubyObject recvfrom(ThreadContext context, IRubyObject[] args) {
try {
InetSocketAddress sender = null;
int length = RubyNumeric.fix2int(args[0]);
ByteBuffer buf = ByteBuffer.allocate(length);
byte[] buf2 = new byte[length];
DatagramPacket recv = new DatagramPacket(buf2, buf2.length);
if (this.multicastStateManager == null) {
((DatagramChannel) this.getChannel()).configureBlocking(false);
context.getThread().select(this, SelectionKey.OP_READ);
sender = (InetSocketAddress) ((DatagramChannel) this.getChannel()).receive(buf);
} else {
MulticastSocket ms = this.multicastStateManager.getMulticastSocket();
ms.receive(recv);
sender = (InetSocketAddress) recv.getSocketAddress();
}
// see JRUBY-4678
if (sender == null) {
throw context.getRuntime().newErrnoECONNRESETError();
}
IRubyObject addressArray = context.getRuntime().newArray(new IRubyObject[]{
context.getRuntime().newString("AF_INET"),
context.getRuntime().newFixnum(sender.getPort()),
context.getRuntime().newString(sender.getHostName()),
context.getRuntime().newString(sender.getAddress().getHostAddress())
});
IRubyObject result = null;
if (this.multicastStateManager == null) {
result = context.getRuntime().newString(new ByteList(buf.array(), 0, buf.position()));
} else {
result = context.getRuntime().newString(new ByteList(recv.getData(), 0, recv.getLength()));
}
return context.getRuntime().newArray(new IRubyObject[]{result, addressArray});
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "recvfrom: name or service not known");
} catch (PortUnreachableException e) {
throw context.getRuntime().newErrnoECONNREFUSEDError();
} catch (IOException e) {
throw sockerr(context.getRuntime(), "recvfrom: name or service not known");
}
}
@Override
public IRubyObject recv(ThreadContext context, IRubyObject[] args) {
try {
int length = RubyNumeric.fix2int(args[0]);
ByteBuffer buf = ByteBuffer.allocate(length);
((DatagramChannel) this.getChannel()).configureBlocking(false);
context.getThread().select(this, SelectionKey.OP_READ);
InetSocketAddress sender = (InetSocketAddress) ((DatagramChannel) this.getChannel()).receive(buf);
// see JRUBY-4678
if (sender == null) {
throw context.getRuntime().newErrnoECONNRESETError();
}
return context.getRuntime().newString(new ByteList(buf.array(), 0, buf.position()));
} catch (IOException e) {
throw sockerr(context.getRuntime(), "recv: name or service not known");
}
}
@Deprecated
public IRubyObject send(IRubyObject[] args) {
return send(getRuntime().getCurrentContext(), args);
}
@JRubyMethod(required = 1, rest = true)
public IRubyObject send(ThreadContext context, IRubyObject[] args) {
try {
int written;
if (args.length >= 3) { // host and port given
RubyString nameStr = args[2].convertToString();
RubyString data = args[0].convertToString();
ByteBuffer buf = ByteBuffer.wrap(data.getBytes());
byte [] buf2 = data.getBytes();
DatagramPacket sendDP = null;
int port;
if (args[3] instanceof RubyString) {
jnr.netdb.Service service = jnr.netdb.Service.getServiceByName(args[3].asJavaString(), "udp");
if (service != null) {
port = service.getPort();
} else {
port = (int)args[3].convertToInteger("to_i").getLongValue();
}
} else {
port = (int)args[3].convertToInteger().getLongValue();
}
InetAddress address = RubySocket.getRubyInetAddress(nameStr.getByteList());
InetSocketAddress addr =
new InetSocketAddress(address, port);
if (this.multicastStateManager == null) {
written = ((DatagramChannel) this.getChannel()).send(buf, addr);
}
else {
sendDP = new DatagramPacket(buf2, buf2.length, address, port);
MulticastSocket ms = this.multicastStateManager.getMulticastSocket();
ms.send(sendDP);
written = sendDP.getLength();
}
} else {
RubyString data = args[0].convertToString();
ByteBuffer buf = ByteBuffer.wrap(data.getBytes());
written = ((DatagramChannel) this.getChannel()).write(buf);
}
return context.getRuntime().newFixnum(written);
} catch (UnknownHostException e) {
throw sockerr(context.getRuntime(), "send: name or service not known");
} catch (IOException e) {
throw sockerr(context.getRuntime(), "send: name or service not known");
}
}
@Deprecated
public static IRubyObject open(IRubyObject recv, IRubyObject[] args, Block block) {
return open(recv.getRuntime().getCurrentContext(), recv, args, block);
}
@JRubyMethod(rest = true, meta = true)
public static IRubyObject open(ThreadContext context, IRubyObject recv, IRubyObject[] args, Block block) {
RubyUDPSocket sock = (RubyUDPSocket) recv.callMethod(context, "new", args);
if (!block.isGiven()) {
return sock;
}
try {
return block.yield(context, sock);
} finally {
if (sock.openFile.isOpen()) {
sock.close();
}
}
}
}// RubyUDPSocket