Implement GProxyConnection a GIOStream+GTcpConn wrapper

This class inherit from GTcpConnection by refing the socket of
an existing GTcpConnection and wraps a custom GIOStream into itself. This
is to allow implementing proxies that alters data stream, like when using
GSSAPI privacy inside SOCKS5.
This commit is contained in:
Nicolas Dufresne 2010-07-22 20:51:23 -04:00
parent 6fa1136600
commit ee3dbf747e
3 changed files with 226 additions and 0 deletions

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@ -355,6 +355,8 @@ libgio_2_0_la_SOURCES = \
gproxy.c \
gproxyaddress.c \
gproxyaddressenumerator.c \
gproxyconnection.c \
gproxyconnection.h \
gsocketservice.c \
gsrvtarget.c \
gtcpconnection.c \

155
gio/gproxyconnection.c Normal file
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@ -0,0 +1,155 @@
/* GIO - GLib Input, Output and Streaming Library
*
* Copyright © 2010 Collabora Ltd.
*
* 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 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, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors: Nicolas Dufresne <nicolas.dufresne@colllabora.co.uk>
*/
#include "config.h"
#include "gproxyconnection.h"
#include "gtcpconnection.h"
#include "glibintl.h"
#define g_proxy_connection_get_type _g_proxy_connection_get_type
G_DEFINE_TYPE (GProxyConnection,
g_proxy_connection, G_TYPE_TCP_CONNECTION);
enum
{
PROP_NONE,
PROP_IO_STREAM
};
struct _GProxyConnectionPrivate
{
GIOStream *io_stream;
};
static GInputStream *
g_proxy_connection_get_input_stream (GIOStream *io_stream)
{
GProxyConnection *connection;
connection = G_PROXY_PROXY_CONNECTION (io_stream);
return g_io_stream_get_input_stream (connection->priv->io_stream);
}
static GOutputStream *
g_proxy_connection_get_output_stream (GIOStream *io_stream)
{
GProxyConnection *connection;
connection = G_PROXY_PROXY_CONNECTION (io_stream);
return g_io_stream_get_output_stream (connection->priv->io_stream);
}
static void
g_proxy_connection_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GProxyConnection *connection = G_PROXY_PROXY_CONNECTION (object);
switch (prop_id)
{
case PROP_IO_STREAM:
g_value_set_object (value, connection->priv->io_stream);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
g_proxy_connection_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GProxyConnection *connection = G_PROXY_PROXY_CONNECTION (object);
switch (prop_id)
{
case PROP_IO_STREAM:
connection->priv->io_stream = G_IO_STREAM (g_value_dup_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static void
g_proxy_connection_finalize (GObject *object)
{
GProxyConnection *connection = G_PROXY_PROXY_CONNECTION (object);
g_object_unref (connection->priv->io_stream);
G_OBJECT_CLASS (g_proxy_connection_parent_class)->finalize (object);
}
static void
g_proxy_connection_class_init (GProxyConnectionClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GIOStreamClass *stream_class = G_IO_STREAM_CLASS (klass);
g_type_class_add_private (klass, sizeof (GProxyConnectionPrivate));
gobject_class->set_property = g_proxy_connection_set_property;
gobject_class->get_property = g_proxy_connection_get_property;
gobject_class->finalize = g_proxy_connection_finalize;
stream_class->get_input_stream = g_proxy_connection_get_input_stream;
stream_class->get_output_stream = g_proxy_connection_get_output_stream;
g_object_class_install_property (gobject_class,
PROP_IO_STREAM,
g_param_spec_object ("io-stream",
P_("IO Stream"),
P_("The altered streams"),
G_TYPE_SOCKET_CONNECTION,
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_READWRITE |
G_PARAM_STATIC_STRINGS));
}
static void
g_proxy_connection_init (GProxyConnection *connection)
{
connection->priv = G_TYPE_INSTANCE_GET_PRIVATE (connection,
G_TYPE_PROXY_CONNECTION,
GProxyConnectionPrivate);
}
GSocketConnection *
_g_proxy_connection_new (GTcpConnection *connection,
GIOStream *io_stream)
{
GSocket *socket;
socket = g_socket_connection_get_socket (G_SOCKET_CONNECTION (connection));
return G_SOCKET_CONNECTION (g_object_new (G_TYPE_PROXY_CONNECTION,
"io-stream", io_stream,
"socket", socket,
NULL));
}

69
gio/gproxyconnection.h Normal file
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@ -0,0 +1,69 @@
/* GIO - GLib Input, Output and Streaming Library
* Copyright © 2010 Collabora Ltd.
*
* This program 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 of the licence 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, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*
*/
#if !defined (__GIO_GIO_H_INSIDE__) && !defined (GIO_COMPILATION)
#error "Only <gio/gio.h> can be included directly."
#endif
#ifndef __G_PROXY_PROXY_CONNECTION_H__
#define __G_PROXY_PROXY_CONNECTION_H__
#include <glib-object.h>
#include <gio/gtcpconnection.h>
G_BEGIN_DECLS
#define G_TYPE_PROXY_CONNECTION (_g_proxy_connection_get_type ())
#define G_PROXY_PROXY_CONNECTION(inst) (G_TYPE_CHECK_INSTANCE_CAST ((inst), \
G_TYPE_PROXY_CONNECTION, GProxyConnection))
#define G_PROXY_PROXY_CONNECTION_CLASS(class) (G_TYPE_CHECK_CLASS_CAST ((class), \
G_TYPE_PROXY_CONNECTION, GProxyConnectionClass))
#define G_IS_PROXY_CONNECTION(inst) (G_TYPE_CHECK_INSTANCE_TYPE ((inst), \
G_TYPE_PROXY_CONNECTION))
#define G_IS_PROXY_CONNECTION_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), \
G_TYPE_PROXY_CONNECTION))
#define G_PROXY_PROXY_CONNECTION_GET_CLASS(inst) (G_TYPE_INSTANCE_GET_CLASS ((inst), \
G_TYPE_PROXY_CONNECTION, GProxyConnectionClass))
typedef struct _GProxyConnection GProxyConnection;
typedef struct _GProxyConnectionPrivate GProxyConnectionPrivate;
typedef struct _GProxyConnectionClass GProxyConnectionClass;
struct _GProxyConnectionClass
{
GTcpConnectionClass parent_class;
};
struct _GProxyConnection
{
GTcpConnection parent_instance;
GProxyConnectionPrivate *priv;
};
GType _g_proxy_connection_get_type (void) G_GNUC_CONST;
GSocketConnection *_g_proxy_connection_new (GTcpConnection *connection,
GIOStream *io_stream);
G_END_DECLS
#endif /* __G_PROXY_PROXY_CONNECTION_H__ */