/*
***** BEGIN LICENSE BLOCK *****
* Version: EPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Eclipse 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/epl-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 <ola@ologix.com>
* Copyright (C) 2007 Thomas E Enebo <enebo@acm.org>
*
* 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 EPL, 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 EPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
package org.jruby.ext.socket;
import static jnr.constants.platform.AddressFamily.*;
import java.io.IOException;
import java.net.BindException;
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.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;
public class RubyTCPSocket extends RubyIPSocket {
static void createTCPSocket(Ruby runtime) {
RubyClass rb_cTCPSocket = runtime.defineClass("TCPSocket", runtime.getClass("IPSocket"), TCPSOCKET_ALLOCATOR);
rb_cTCPSocket.defineAnnotatedMethods(RubyTCPSocket.class);
runtime.getObject().setConstant("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);
}
@JRubyMethod(required = 2, optional = 2, visibility = Visibility.PRIVATE)
public IRubyObject initialize(ThreadContext context, IRubyObject[] args) {
Ruby runtime = context.runtime;
IRubyObject _host = args[0];
IRubyObject _port = args[1];
String remoteHost = _host.isNil()? "localhost" : _host.convertToString().toString();
int remotePort = SocketUtils.getPortFrom(context, _port);
String localHost = (args.length >= 3 && !args[2].isNil()) ? args[2].convertToString().toString() : null;
int localPort = (args.length == 4 && !args[3].isNil()) ? SocketUtils.getPortFrom(context, args[3]) : 0;
// try to ensure the socket closes if it doesn't succeed
boolean success = false;
SocketChannel channel = null;
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
channel = SocketChannel.open();
Socket socket = channel.socket();
if (localHost != null) {
socket.setReuseAddress(true);
socket.bind( new InetSocketAddress(InetAddress.getByName(localHost), localPort) );
}
try {
// Do this nonblocking so we can be interrupted
channel.configureBlocking(false);
channel.connect( new InetSocketAddress(InetAddress.getByName(remoteHost), remotePort) );
context.getThread().select(channel, this, SelectionKey.OP_CONNECT);
channel.finishConnect();
// only try to set blocking back if we succeeded to finish connecting
channel.configureBlocking(true);
initSocket(newChannelFD(runtime, channel));
success = true;
} catch(BindException e) {
throw runtime.newErrnoEADDRFromBindException(e, " to: " + remoteHost + ":" + String.valueOf(remotePort));
} catch (NoRouteToHostException nrthe) {
throw runtime.newErrnoEHOSTUNREACHError("SocketChannel.connect");
} catch(ConnectException e) {
throw runtime.newErrnoECONNREFUSEDError();
} catch(UnknownHostException e) {
throw SocketUtils.sockerr(runtime, "initialize: name or service not known");
}
} catch (ClosedChannelException cce) {
throw runtime.newErrnoECONNREFUSEDError();
} catch(BindException e) {
throw runtime.newErrnoEADDRFromBindException(e, " on: " + localHost + ":" + String.valueOf(localPort));
} catch(IOException e) {
throw SocketUtils.sockerr(runtime, e.getLocalizedMessage());
} catch (IllegalArgumentException iae) {
throw SocketUtils.sockerr(runtime, iae.getMessage());
} finally {
if (!success && channel != null) {
try {channel.close();} catch (IOException ioe) {}
}
}
return context.nil;
}
@JRubyMethod(meta = true)
public static IRubyObject gethostbyname(ThreadContext context, IRubyObject recv, IRubyObject hostname) {
Ruby runtime = context.runtime;
IRubyObject[] ret = new IRubyObject[4];
String hostString = hostname.convertToString().toString();
try {
InetAddress addr = InetAddress.getByName(hostString);
ret[0] = runtime.newString(do_not_reverse_lookup(context, recv).isTrue() ? addr.getHostAddress() : addr.getCanonicalHostName());
ret[1] = runtime.newArray();
if (addr instanceof Inet4Address) {
ret[2] = runtime.newFixnum(AF_INET);
} else if (addr instanceof Inet6Address) {
ret[2] = runtime.newFixnum(AF_INET6);
}
ret[3] = runtime.newString(addr.getHostAddress());
return runtime.newArrayNoCopy(ret);
} catch(UnknownHostException e) {
throw SocketUtils.sockerr(runtime, "gethostbyname: name or service not known");
}
}
@Deprecated
public static IRubyObject open(IRubyObject recv, IRubyObject[] args, Block block) {
return open(recv.getRuntime().getCurrentContext(), recv, args, block);
}
@Deprecated
public static IRubyObject gethostbyname(IRubyObject recv, IRubyObject hostname) {
return gethostbyname(recv.getRuntime().getCurrentContext(), recv, hostname);
}
}