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// Copyright (C) 2011 Red Hat, Inc.
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, see <http://www.gnu.org/licenses/>.
using GLib;
using Custom;
using Win32;
using Spice;
using SpiceProtocol;
namespace SpiceCtrl {
public errordomain Error {
VALUE,
}
public class Controller: Object {
public string host { private set; get; }
public uint32 port { private set; get; }
public uint32 sport { private set; get; }
public string password { private set; get; }
public SpiceProtocol.Controller.Display display_flags { private set; get; }
public string tls_ciphers { private set; get; }
public string host_subject { private set; get; }
public string ca_file { private set; get; }
public string title { private set; get; }
public string hotkeys { private set; get; }
public string[] secure_channels { private set; get; }
public string[] disable_channels { private set; get; }
public SpiceCtrl.Menu? menu { private set; get; }
public bool enable_smartcard { private set; get; }
public bool send_cad { private set; get; }
public string[] disable_effects {private set; get; }
public uint32 color_depth {private set; get; }
public bool enable_usbredir { private set; get; }
public bool enable_usb_autoshare { private set; get; }
public string usb_filter { private set; get; }
public string proxy { private set; get; }
public signal void do_connect ();
public signal void show ();
public signal void hide ();
public signal void client_connected ();
public void menu_item_click_msg (int32 item_id) {
var msg = SpiceProtocol.Controller.MsgValue ();
msg.base.size = (uint32)sizeof (SpiceProtocol.Controller.MsgValue);
msg.base.id = SpiceProtocol.Controller.MsgId.MENU_ITEM_CLICK;
msg.value = item_id;
unowned uint8[] p = ((uint8[])(&msg))[0:msg.base.size];
send_msg.begin (p);
}
public async bool send_msg (uint8[] p) throws GLib.Error {
// vala FIXME: pass Controller.Msg instead
// vala doesn't keep reference on the struct in async methods
// it copies only base, which is not enough to transmit the whole
// message.
try {
if (excl_connection != null) {
yield output_stream_write (excl_connection.output_stream, p);
} else {
foreach (var c in clients)
yield output_stream_write (c.output_stream, p);
}
} catch (GLib.Error e) {
warning (e.message);
}
return true;
}
private GLib.IOStream? excl_connection;
private int nclients;
List<IOStream> clients;
private bool handle_message (SpiceProtocol.Controller.Msg* msg) {
var v = (SpiceProtocol.Controller.MsgValue*)(msg);
var d = (SpiceProtocol.Controller.MsgData*)(msg);
unowned string str = (string)(&d.data);
switch (msg.id) {
case SpiceProtocol.Controller.MsgId.HOST:
host = str;
debug ("got HOST: %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.PORT:
port = v.value;
debug ("got PORT: %u".printf (port));
break;
case SpiceProtocol.Controller.MsgId.SPORT:
sport = v.value;
debug ("got SPORT: %u".printf (sport));
break;
case SpiceProtocol.Controller.MsgId.PASSWORD:
password = str;
debug ("got PASSWORD");
break;
case SpiceProtocol.Controller.MsgId.SECURE_CHANNELS:
secure_channels = str.split(",");
debug ("got SECURE_CHANNELS %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.DISABLE_CHANNELS:
disable_channels = str.split(",");
debug ("got DISABLE_CHANNELS %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.TLS_CIPHERS:
tls_ciphers = str;
debug ("got TLS_CIPHERS %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.CA_FILE:
ca_file = str;
debug ("got CA_FILE %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.HOST_SUBJECT:
host_subject = str;
debug ("got HOST_SUBJECT %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.FULL_SCREEN:
display_flags = (SpiceProtocol.Controller.Display)v.value;
debug ("got FULL_SCREEN 0x%x".printf (v.value));
break;
case SpiceProtocol.Controller.MsgId.SET_TITLE:
title = str;
debug ("got TITLE %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.ENABLE_SMARTCARD:
enable_smartcard = (bool)v.value;
debug ("got ENABLE_SMARTCARD 0x%x".printf (v.value));
break;
case SpiceProtocol.Controller.MsgId.CREATE_MENU:
menu = new SpiceCtrl.Menu.from_string (str);
debug ("got CREATE_MENU %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.DELETE_MENU:
menu = null;
debug ("got DELETE_MENU request");
break;
case SpiceProtocol.Controller.MsgId.SEND_CAD:
send_cad = (bool)v.value;
debug ("got SEND_CAD %u".printf (v.value));
break;
case SpiceProtocol.Controller.MsgId.HOTKEYS:
hotkeys = str;
debug ("got HOTKEYS %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.COLOR_DEPTH:
color_depth = v.value;
debug ("got COLOR_DEPTH %u".printf (v.value));
break;
case SpiceProtocol.Controller.MsgId.DISABLE_EFFECTS:
disable_effects = str.split(",");
debug ("got DISABLE_EFFECTS %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.CONNECT:
do_connect ();
debug ("got CONNECT request");
break;
case SpiceProtocol.Controller.MsgId.SHOW:
show ();
debug ("got SHOW request");
break;
case SpiceProtocol.Controller.MsgId.HIDE:
hide ();
debug ("got HIDE request");
break;
case SpiceProtocol.Controller.MsgId.ENABLE_USB:
enable_usbredir = (bool)v.value;
debug ("got ENABLE_USB %u".printf (v.value));
break;
case SpiceProtocol.Controller.MsgId.ENABLE_USB_AUTOSHARE:
enable_usb_autoshare = (bool)v.value;
debug ("got ENABLE_USB_AUTOSHARE %u".printf (v.value));
break;
case SpiceProtocol.Controller.MsgId.USB_FILTER:
usb_filter = str;
debug ("got USB_FILTER %s".printf (str));
break;
case SpiceProtocol.Controller.MsgId.PROXY:
proxy = str;
debug ("got PROXY %s".printf (str));
break;
default:
debug ("got unknown msg.id %u".printf (msg.id));
warn_if_reached ();
return false;
}
return true;
}
private async void handle_client (IOStream c) throws GLib.Error {
var excl = false;
debug ("new socket client, reading init header");
var p = new uint8[sizeof(SpiceProtocol.Controller.Init)];
var init = (SpiceProtocol.Controller.Init*)p;
yield input_stream_read (c.input_stream, p);
if (warn_if (init.base.magic != SpiceProtocol.Controller.MAGIC))
return;
if (warn_if (init.base.version != SpiceProtocol.Controller.VERSION))
return;
if (warn_if (init.base.size < sizeof (SpiceProtocol.Controller.Init)))
return;
if (warn_if (init.credentials != 0))
return;
if (warn_if (excl_connection != null))
return;
excl = (bool)(init.flags & SpiceProtocol.Controller.Flag.EXCLUSIVE);
if (excl) {
if (nclients > 1) {
warning (@"Can't make the client exclusive, there is already $nclients connected clients");
return;
}
excl_connection = c;
}
client_connected ();
for (;;) {
var t = new uint8[sizeof(SpiceProtocol.Controller.Msg)];
yield input_stream_read (c.input_stream, t);
var msg = (SpiceProtocol.Controller.Msg*)t;
debug ("new message " + msg.id.to_string () + "size " + msg.size.to_string ());
if (warn_if (msg.size < sizeof (SpiceProtocol.Controller.Msg)))
break;
if (msg.size > sizeof (SpiceProtocol.Controller.Msg)) {
t.resize ((int)msg.size);
msg = (SpiceProtocol.Controller.Msg*)t;
yield input_stream_read (c.input_stream, t[sizeof(SpiceProtocol.Controller.Msg):msg.size]);
}
handle_message (msg);
}
if (excl)
excl_connection = null;
}
public Controller() {
}
public async void listen (string? addr = null) throws GLib.Error, SpiceCtrl.Error
{
var listener = ControllerListener.new_listener (addr);
for (;;) {
var c = yield listener.accept_async ();
nclients += 1;
clients.append (c);
try {
yield handle_client (c);
} catch (GLib.Error e) {
warning (e.message);
}
c.close ();
clients.remove (c);
nclients -= 1;
}
}
}
} // SpiceCtrl
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