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/*
***** 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 Ola Bini
* Copyright (C) 2007 Thomas E Enebo
*
* 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
* under the terms of either the GPL or the LGPL, and not to allow others to
* 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 static com.kenai.constantine.platform.AddressFamily.*;
import java.io.IOException;
import java.net.ConnectException;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.NoRouteToHostException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.nio.channels.ClosedChannelException;
import java.nio.channels.SelectionKey;
import java.nio.channels.SocketChannel;
import org.jruby.Ruby;
import org.jruby.RubyClass;
import org.jruby.RubyNumeric;
import org.jruby.RubyString;
import org.jruby.anno.JRubyMethod;
import org.jruby.runtime.Arity;
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.io.ModeFlags;
import org.jruby.util.io.ChannelDescriptor;
import org.jruby.util.io.InvalidValueException;
public class RubyTCPSocket extends RubyIPSocket {
static void createTCPSocket(Ruby runtime) {
RubyClass rb_cTCPSocket = runtime.defineClass("TCPSocket", runtime.fastGetClass("IPSocket"), TCPSOCKET_ALLOCATOR);
rb_cTCPSocket.includeModule(runtime.fastGetClass("Socket").fastGetConstant("Constants"));
rb_cTCPSocket.defineAnnotatedMethods(RubyTCPSocket.class);
runtime.getObject().fastSetConstant("TCPsocket",rb_cTCPSocket);
}
private static ObjectAllocator TCPSOCKET_ALLOCATOR = new ObjectAllocator() {
public IRubyObject allocate(Ruby runtime, RubyClass klass) {
return new RubyTCPSocket(runtime, klass);
}
};
public RubyTCPSocket(Ruby runtime, RubyClass type) {
super(runtime, type);
}
private int getPortFrom(Ruby runtime, IRubyObject arg) {
if (arg instanceof RubyString) {
jnr.netdb.Service service = jnr.netdb.Service.getServiceByName(arg.asJavaString(), "tcp");
return service != null ?
service.getPort() : RubyNumeric.fix2int(RubyNumeric.str2inum(runtime, (RubyString) arg, 0, true));
}
return RubyNumeric.fix2int(arg);
}
@JRubyMethod(required = 2, optional = 2, visibility = Visibility.PRIVATE, backtrace = true)
public IRubyObject initialize(ThreadContext context, IRubyObject[] args) {
Arity.checkArgumentCount(context.getRuntime(), args, 2, 4);
String remoteHost = args[0].isNil()? "localhost" : args[0].convertToString().toString();
int remotePort = getPortFrom(context.getRuntime(), args[1]);
String localHost = args.length >= 3 && !args[2].isNil() ? args[2].convertToString().toString() : null;
int localPort = args.length == 4 && !args[3].isNil() ? getPortFrom(context.getRuntime(), args[3]) : 0;
try {
// This is a bit convoluted because (1) SocketChannel.bind is only in jdk 7 and
// (2) Socket.getChannel() seems to return null in some cases
final SocketChannel channel = SocketChannel.open();
final Socket socket = channel.socket();
if (localHost != null) {
socket.bind( new InetSocketAddress(InetAddress.getByName(localHost), localPort) );
}
boolean success = false;
try {
channel.configureBlocking(false);
channel.connect( new InetSocketAddress(InetAddress.getByName(remoteHost), remotePort) );
context.getThread().select(channel, this, SelectionKey.OP_CONNECT);
channel.finishConnect();
success = true;
} catch (NoRouteToHostException nrthe) {
throw context.getRuntime().newErrnoEHOSTUNREACHError("SocketChannel.connect");
} catch(ConnectException e) {
throw context.getRuntime().newErrnoECONNREFUSEDError();
} catch(UnknownHostException e) {
throw sockerr(context.getRuntime(), "initialize: name or service not known");
} finally {
// only try to set blocking back if we succeeded to finish connecting
if (success) channel.configureBlocking(true);
}
initSocket(context.getRuntime(), new ChannelDescriptor(channel, new ModeFlags(ModeFlags.RDWR)));
} catch (InvalidValueException ex) {
throw context.getRuntime().newErrnoEINVALError();
} catch (ClosedChannelException cce) {
throw context.getRuntime().newErrnoECONNREFUSEDError();
} catch(IOException e) {
throw sockerr(context.getRuntime(), e.getLocalizedMessage());
} catch (IllegalArgumentException iae) {
throw sockerr(context.getRuntime(), iae.getMessage());
}
return this;
}
@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) {
RubyTCPSocket sock = (RubyTCPSocket)recv.callMethod(context,"new",args);
if (!block.isGiven()) return sock;
try {
return block.yield(context, sock);
} finally {
if (sock.openFile.isOpen()) sock.close();
}
}
@Deprecated
public static IRubyObject gethostbyname(IRubyObject recv, IRubyObject hostname) {
return gethostbyname(recv.getRuntime().getCurrentContext(), recv, hostname);
}
@JRubyMethod(meta = true)
public static IRubyObject gethostbyname(ThreadContext context, IRubyObject recv, IRubyObject hostname) {
try {
IRubyObject[] ret = new IRubyObject[4];
Ruby r = context.getRuntime();
InetAddress addr;
String hostString = hostname.convertToString().toString();
addr = InetAddress.getByName(hostString);
ret[0] = r.newString(do_not_reverse_lookup(recv).isTrue() ? addr.getHostAddress() : addr.getCanonicalHostName());
ret[1] = r.newArray();
ret[3] = r.newString(addr.getHostAddress());
if (addr instanceof Inet4Address) {
Inet4Address addr4 = (Inet4Address)addr;
ret[2] = r.newFixnum(AF_INET); //AF_INET
} else if (addr instanceof Inet6Address) {
Inet6Address addr6 = (Inet6Address)addr;
ret[2] = r.newFixnum(AF_INET6); //AF_INET
}
return r.newArrayNoCopy(ret);
} catch(UnknownHostException e) {
throw sockerr(context.getRuntime(), "gethostbyname: name or service not known");
}
}
}
