[glib] Implemented SOCKSv5 proxy support
- From: Nicolas Dufresne <nicolasd src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [glib] Implemented SOCKSv5 proxy support
- Date: Thu, 19 Aug 2010 21:05:30 +0000 (UTC)
commit 6fa113660057e0e6592b180d1a2aead617e71dec
Author: Nicolas Dufresne <nicolas dufresne collabora co uk>
Date: Thu Apr 29 15:22:55 2010 -0400
Implemented SOCKSv5 proxy support
gio/Makefile.am | 2 +
gio/giomodule.c | 2 +
gio/gsocks5proxy.c | 1053 ++++++++++++++++++++++++++++++++++++++++++++++++++++
gio/gsocks5proxy.h | 48 +++
po/POTFILES.in | 1 +
5 files changed, 1106 insertions(+), 0 deletions(-)
---
diff --git a/gio/Makefile.am b/gio/Makefile.am
index 30cce03..20d10c4 100644
--- a/gio/Makefile.am
+++ b/gio/Makefile.am
@@ -160,6 +160,8 @@ local_sources = \
glocalfileiostream.h \
glocalvfs.c \
glocalvfs.h \
+ gsocks5proxy.c \
+ gsocks5proxy.h \
$(NULL)
platform_libadd =
diff --git a/gio/giomodule.c b/gio/giomodule.c
index ee5c3f0..e0abf2f 100644
--- a/gio/giomodule.c
+++ b/gio/giomodule.c
@@ -32,6 +32,7 @@
#include "gnativevolumemonitor.h"
#include "gproxyresolver.h"
#include "gproxy.h"
+#include "gsocks5proxy.h"
#include "gvfs.h"
#ifdef G_OS_UNIX
#include "gdesktopappinfo.h"
@@ -602,6 +603,7 @@ _g_io_modules_ensure_loaded (void)
#endif
_g_local_vfs_get_type ();
_g_dummy_proxy_resolver_get_type ();
+ _g_socks5_proxy_get_type ();
}
G_UNLOCK (loaded_dirs);
diff --git a/gio/gsocks5proxy.c b/gio/gsocks5proxy.c
new file mode 100644
index 0000000..3da829e
--- /dev/null
+++ b/gio/gsocks5proxy.c
@@ -0,0 +1,1053 @@
+ /* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright (C) 2008, 2010 Collabora, Ltd.
+ * Copyright (C) 2008 Nokia Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * Author: Youness Alaoui <youness alaoui collabora co uk
+ *
+ * Contributors:
+ * Nicolas Dufresne <nicolas dufresne collabora co uk>
+ */
+
+#include "config.h"
+
+#include "gsocks5proxy.h"
+
+#include <string.h>
+
+#include "giomodule.h"
+#include "giomodule-priv.h"
+#include "giostream.h"
+#include "ginetaddress.h"
+#include "ginputstream.h"
+#include "glibintl.h"
+#include "goutputstream.h"
+#include "gproxy.h"
+#include "gproxyaddress.h"
+#include "gsimpleasyncresult.h"
+
+#define SOCKS5_VERSION 0x05
+
+#define SOCKS5_CMD_CONNECT 0x01
+#define SOCKS5_CMD_BIND 0x02
+#define SOCKS5_CMD_UDP_ASSOCIATE 0x03
+
+#define SOCKS5_ATYP_IPV4 0x01
+#define SOCKS5_ATYP_DOMAINNAME 0x03
+#define SOCKS5_ATYP_IPV6 0x04
+
+#define SOCKS5_AUTH_VERSION 0x01
+
+#define SOCKS5_AUTH_NONE 0x00
+#define SOCKS5_AUTH_GSSAPI 0x01
+#define SOCKS5_AUTH_USR_PASS 0x02
+#define SOCKS5_AUTH_NO_ACCEPT 0xff
+
+#define SOCKS5_MAX_LEN 255
+#define SOCKS5_RESERVED 0x00
+
+#define SOCKS5_REP_SUCCEEDED 0x00
+#define SOCKS5_REP_SRV_FAILURE 0x01
+#define SOCKS5_REP_NOT_ALLOWED 0x02
+#define SOCKS5_REP_NET_UNREACH 0x03
+#define SOCKS5_REP_HOST_UNREACH 0x04
+#define SOCKS5_REP_REFUSED 0x05
+#define SOCKS5_REP_TTL_EXPIRED 0x06
+#define SOCKS5_REP_CMD_NOT_SUP 0x07
+#define SOCKS5_REP_ATYPE_NOT_SUP 0x08
+
+
+struct _GSocks5Proxy
+{
+ GObject parent;
+};
+
+struct _GSocks5ProxyClass
+{
+ GObjectClass parent_class;
+};
+
+static void g_socks5_proxy_iface_init (GProxyInterface *proxy_iface);
+
+#define g_socks5_proxy_get_type _g_socks5_proxy_get_type
+G_DEFINE_TYPE_WITH_CODE (GSocks5Proxy, g_socks5_proxy, G_TYPE_OBJECT,
+ G_IMPLEMENT_INTERFACE (G_TYPE_PROXY,
+ g_socks5_proxy_iface_init)
+ _g_io_modules_ensure_extension_points_registered ();
+ g_io_extension_point_implement (G_PROXY_EXTENSION_POINT_NAME,
+ g_define_type_id,
+ "socks5",
+ 0))
+
+static void
+g_socks5_proxy_finalize (GObject *object)
+{
+ /* must chain up */
+ G_OBJECT_CLASS (g_socks5_proxy_parent_class)->finalize (object);
+}
+
+static void
+g_socks5_proxy_init (GSocks5Proxy *proxy)
+{
+}
+
+/*
+ * +----+----------+----------+
+ * |VER | NMETHODS | METHODS |
+ * +----+----------+----------+
+ * | 1 | 1 | 1 to 255 |
+ * +----+----------+----------+
+ */
+#define SOCKS5_NEGO_MSG_LEN 4
+static gint
+set_nego_msg (guint8 *msg, gboolean has_auth)
+{
+ gint len = 3;
+
+ msg[0] = SOCKS5_VERSION;
+ msg[1] = 0x01; /* number of methods supported */
+ msg[2] = SOCKS5_AUTH_NONE;
+
+ /* add support for authentication method */
+ if (has_auth)
+ {
+ msg[1] = 0x02; /* number of methods supported */
+ msg[3] = SOCKS5_AUTH_USR_PASS;
+ len++;
+ }
+
+ return len;
+}
+
+
+/*
+ * +----+--------+
+ * |VER | METHOD |
+ * +----+--------+
+ * | 1 | 1 |
+ * +----+--------+
+ */
+#define SOCKS5_NEGO_REP_LEN 2
+static gboolean
+parse_nego_reply (const guint8 *data,
+ gboolean has_auth,
+ gboolean *must_auth,
+ GError **error)
+{
+ if (data[0] != SOCKS5_VERSION)
+ {
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("The server is not a SOCKSv5 proxy server."));
+ return FALSE;
+ }
+
+ switch (data[1])
+ {
+ case SOCKS5_AUTH_NONE:
+ *must_auth = FALSE;
+ break;
+
+ case SOCKS5_AUTH_USR_PASS:
+ if (!has_auth)
+ {
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_NEED_AUTH,
+ _("The SOCKSv5 proxy requires authentication."));
+ return FALSE;
+ }
+ *must_auth = TRUE;
+ break;
+
+ case SOCKS5_AUTH_GSSAPI:
+ case SOCKS5_AUTH_NO_ACCEPT:
+ default:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_AUTH_FAILED,
+ _("The SOCKSv5 require an authentication method that is not "
+ "supported by GLib."));
+ return FALSE;
+ break;
+ }
+
+ return TRUE;
+}
+
+#define SOCKS5_AUTH_MSG_LEN 515
+static gint
+set_auth_msg (guint8 *msg,
+ const gchar *username,
+ const gchar *password,
+ GError **error)
+{
+ gint len = 0;
+ gint ulen = 0; /* username length */
+ gint plen = 0; /* Password length */
+
+ if (username)
+ ulen = strlen (username);
+
+ if (password)
+ plen = strlen (password);
+
+ if (ulen > SOCKS5_MAX_LEN || plen > SOCKS5_MAX_LEN)
+ {
+ g_set_error (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("Username or password is too long for SOCKSv5 "
+ "protocol (max. is %i)."),
+ SOCKS5_MAX_LEN);
+ return FALSE;
+ }
+
+ msg[len++] = SOCKS5_AUTH_VERSION;
+ msg[len++] = ulen;
+
+ if (ulen > 0)
+ memcpy (msg + len, username, ulen);
+
+ len += ulen;
+ msg[len++] = plen;
+
+ if (plen > 0)
+ memcpy (msg + len, password, plen);
+
+ len += plen;
+
+ return len;
+}
+
+
+static gboolean
+check_auth_status (const guint8 *data, GError **error)
+{
+ if (data[0] != SOCKS5_VERSION
+ || data[1] != SOCKS5_REP_SUCCEEDED)
+ {
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_AUTH_FAILED,
+ _("SOCKSv5 authentication failed due to wrong "
+ "username or password."));
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/*
+ * +----+-----+-------+------+----------+----------+
+ * |VER | CMD | RSV | ATYP | DST.ADDR | DST.PORT |
+ * +----+-----+-------+------+----------+----------+
+ * | 1 | 1 | X'00' | 1 | Variable | 2 |
+ * +----+-----+-------+------+----------+----------+
+ * DST.ADDR is a string with first byte being the size. So DST.ADDR may not be
+ * longer then 256 bytes.
+ */
+#define SOCKS5_CONN_MSG_LEN 262
+static gint
+set_connect_msg (guint8 *msg,
+ const gchar *hostname,
+ guint16 port,
+ GError **error)
+{
+ guint len = 0;
+
+ msg[len++] = SOCKS5_VERSION;
+ msg[len++] = SOCKS5_CMD_CONNECT;
+ msg[len++] = SOCKS5_RESERVED;
+
+ if (g_hostname_is_ip_address (hostname))
+ {
+ GInetAddress *addr = g_inet_address_new_from_string (hostname);
+ gsize addr_len = g_inet_address_get_native_size (addr);
+
+ /* We are cheating for simplicity, here's the logic:
+ * 1 = IPV4 = 4 bytes / 4
+ * 4 = IPV6 = 16 bytes / 4 */
+ msg[len++] = addr_len / 4;
+ memcpy (msg + len, g_inet_address_to_bytes (addr), addr_len);
+ len += addr_len;
+
+ g_object_unref (addr);
+ }
+ else
+ {
+ gsize host_len = strlen (hostname);
+
+ if (host_len > SOCKS5_MAX_LEN)
+ {
+ g_set_error (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("Hostname '%s' too long for SOCKSv5 protocol "
+ "(maximum is %i bytes)"),
+ hostname, SOCKS5_MAX_LEN);
+ return -1;
+ }
+
+ msg[len++] = SOCKS5_ATYP_DOMAINNAME;
+ msg[len++] = (guint8) host_len;
+ memcpy (msg + len, hostname, host_len);
+ len += host_len;
+ }
+
+ {
+ guint16 hp = g_htons (port);
+ memcpy (msg + len, &hp, 2);
+ len += 2;
+ }
+
+ return len;
+}
+
+/*
+ * +----+-----+-------+------+----------+----------+
+ * |VER | REP | RSV | ATYP | BND.ADDR | BND.PORT |
+ * +----+-----+-------+------+----------+----------+
+ * | 1 | 1 | X'00' | 1 | Variable | 2 |
+ * +----+-----+-------+------+----------+----------+
+ * This reply need to be read by small part to determin size. Buffer
+ * size is determined in function of the biggest part to read.
+ *
+ * The parser only requires 4 bytes.
+ */
+#define SOCKS5_CONN_REP_LEN 255
+static gboolean
+parse_connect_reply (const guint8 *data, gint *atype, GError **error)
+{
+ if (data[0] != SOCKS5_VERSION)
+ {
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("The server is not a SOCKSv5 proxy server."));
+ return FALSE;
+ }
+
+ switch (data[1])
+ {
+ case SOCKS5_REP_SUCCEEDED:
+ if (data[2] != SOCKS5_RESERVED)
+ {
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("The server is not a SOCKSv5 proxy server."));
+ return FALSE;
+ }
+
+ switch (data[3])
+ {
+ case SOCKS5_ATYP_IPV4:
+ case SOCKS5_ATYP_IPV6:
+ case SOCKS5_ATYP_DOMAINNAME:
+ *atype = data[3];
+ break;
+
+ default:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("The SOCKSv5 proxy server uses unkown address type."));
+ return FALSE;
+ }
+ break;
+
+ case SOCKS5_REP_SRV_FAILURE:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("Internal SOCKSv5 proxy server error."));
+ return FALSE;
+ break;
+
+ case SOCKS5_REP_NOT_ALLOWED:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_NOT_ALLOWED,
+ _("SOCKSv5 connection not allowed by ruleset."));
+ return FALSE;
+ break;
+
+ case SOCKS5_REP_TTL_EXPIRED:
+ case SOCKS5_REP_HOST_UNREACH:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_HOST_UNREACHABLE,
+ _("Host unreachable through SOCKSv5 server."));
+ return FALSE;
+ break;
+
+ case SOCKS5_REP_NET_UNREACH:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_NETWORK_UNREACHABLE,
+ _("Network unreachable through SOCKSv5 proxy."));
+ return FALSE;
+ break;
+
+ case SOCKS5_REP_REFUSED:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_CONNECTION_REFUSED,
+ _("Connection refused through SOCKSv5 proxy."));
+ return FALSE;
+ break;
+
+ case SOCKS5_REP_CMD_NOT_SUP:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("SOCKSv5 proxy does not support 'connect' command."));
+ return FALSE;
+ break;
+
+ case SOCKS5_REP_ATYPE_NOT_SUP:
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("SOCKSv5 proxy does not support provided address type."));
+ return FALSE;
+ break;
+
+ default: /* Unknown error */
+ g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_PROXY_FAILED,
+ _("Unkown SOCKSv5 proxy error."));
+ return FALSE;
+ break;
+ }
+
+ return TRUE;
+}
+
+static GIOStream *
+g_socks5_proxy_connect (GProxy *proxy,
+ GIOStream *io_stream,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GError **error)
+{
+ gboolean has_auth;
+ GInputStream *in;
+ GOutputStream *out;
+ const gchar *hostname;
+ guint16 port;
+ const gchar *username;
+ const gchar *password;
+
+ hostname = g_proxy_address_get_destination_hostname (proxy_address);
+ port = g_proxy_address_get_destination_port (proxy_address);
+ username = g_proxy_address_get_username (proxy_address);
+ password = g_proxy_address_get_password (proxy_address);
+
+ has_auth = username || password;
+
+ in = g_io_stream_get_input_stream (io_stream);
+ out = g_io_stream_get_output_stream (io_stream);
+
+ /* Send SOCKS5 handshake */
+ {
+ guint8 msg[SOCKS5_NEGO_MSG_LEN];
+ gint len;
+
+ len = set_nego_msg (msg, has_auth);
+
+ if (!g_output_stream_write_all (out, msg, len, NULL,
+ cancellable, error))
+ goto error;
+ }
+
+ /* Recieve SOCKS5 response and reply with authentication if required */
+ {
+ guint8 data[SOCKS5_NEGO_REP_LEN];
+ gboolean must_auth = FALSE;
+
+ if (!g_input_stream_read_all (in, data, sizeof (data), NULL,
+ cancellable, error))
+ goto error;
+
+ if (!parse_nego_reply (data, has_auth, &must_auth, error))
+ goto error;
+
+ if (must_auth)
+ {
+ guint8 msg[SOCKS5_AUTH_MSG_LEN];
+ gint len;
+
+ len = set_auth_msg (msg, username, password, error);
+
+ if (len < 0)
+ goto error;
+
+ if (!g_output_stream_write_all (out, msg, len, NULL,
+ cancellable, error))
+ goto error;
+
+ if (!g_input_stream_read_all (in, data, sizeof (data), NULL,
+ cancellable, error))
+ goto error;
+
+ if (!check_auth_status (data, error))
+ goto error;
+ }
+ }
+
+ /* Send SOCKS5 connection request */
+ {
+ guint8 msg[SOCKS5_CONN_MSG_LEN];
+ gint len;
+
+ len = set_connect_msg (msg, hostname, port, error);
+
+ if (len < 0)
+ goto error;
+
+ if (!g_output_stream_write_all (out, msg, len, NULL,
+ cancellable, error))
+ goto error;
+ }
+
+ /* Read SOCKS5 response */
+ {
+ guint8 data[SOCKS5_CONN_REP_LEN];
+ gint atype;
+
+ if (!g_input_stream_read_all (in, data, 4, NULL,
+ cancellable, error))
+ goto error;
+
+ if (!parse_connect_reply (data, &atype, error))
+ goto error;
+
+ switch (atype)
+ {
+ case SOCKS5_ATYP_IPV4:
+ if (!g_input_stream_read_all (in, data, 6, NULL,
+ cancellable, error))
+ goto error;
+ break;
+
+ case SOCKS5_ATYP_IPV6:
+ if (!g_input_stream_read_all (in, data, 18, NULL,
+ cancellable, error))
+ goto error;
+ break;
+
+ case SOCKS5_ATYP_DOMAINNAME:
+ if (!g_input_stream_read_all (in, data, 1, NULL,
+ cancellable, error))
+ goto error;
+ if (!g_input_stream_read_all (in, data, data[0] + 2, NULL,
+ cancellable, error))
+ goto error;
+ break;
+ }
+ }
+
+ return g_object_ref (io_stream);
+
+error:
+ return NULL;
+}
+
+
+typedef struct
+{
+ GSimpleAsyncResult *simple;
+ GIOStream *io_stream;
+ gchar *hostname;
+ guint16 port;
+ gchar *username;
+ gchar *password;
+ guint8 *buffer;
+ gssize length;
+ gssize offset;
+ GCancellable *cancellable;
+} ConnectAsyncData;
+
+static void nego_msg_write_cb (GObject *source,
+ GAsyncResult *res,
+ gpointer user_data);
+static void nego_reply_read_cb (GObject *source,
+ GAsyncResult *res,
+ gpointer user_data);
+static void auth_msg_write_cb (GObject *source,
+ GAsyncResult *res,
+ gpointer user_data);
+static void auth_reply_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data);
+static void send_connect_msg (ConnectAsyncData *data);
+static void connect_msg_write_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data);
+static void connect_reply_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data);
+static void connect_addr_len_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data);
+static void connect_addr_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data);
+
+static void
+free_connect_data (ConnectAsyncData *data)
+{
+ if (data->io_stream)
+ g_object_unref (data->io_stream);
+
+ g_free (data->hostname);
+ g_free (data->username);
+ g_free (data->password);
+
+ if (data->cancellable)
+ g_object_unref (data->cancellable);
+
+ g_slice_free (ConnectAsyncData, data);
+}
+
+static void
+complete_async_from_error (ConnectAsyncData *data, GError *error)
+{
+ GSimpleAsyncResult *simple = data->simple;
+ g_simple_async_result_set_from_error (data->simple,
+ error);
+ g_error_free (error);
+ g_simple_async_result_set_op_res_gpointer (simple, NULL, NULL);
+ g_simple_async_result_complete (simple);
+ g_object_unref (simple);
+}
+
+static void
+do_read (GAsyncReadyCallback callback, ConnectAsyncData *data)
+{
+ GInputStream *in;
+ in = g_io_stream_get_input_stream (data->io_stream);
+ g_input_stream_read_async (in,
+ data->buffer + data->offset,
+ data->length - data->offset,
+ G_PRIORITY_DEFAULT, data->cancellable,
+ callback, data);
+}
+
+static void
+do_write (GAsyncReadyCallback callback, ConnectAsyncData *data)
+{
+ GOutputStream *out;
+ out = g_io_stream_get_output_stream (data->io_stream);
+ g_output_stream_write_async (out,
+ data->buffer + data->offset,
+ data->length - data->offset,
+ G_PRIORITY_DEFAULT, data->cancellable,
+ callback, data);
+}
+
+static void
+g_socks5_proxy_connect_async (GProxy *proxy,
+ GIOStream *io_stream,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GSimpleAsyncResult *simple;
+ ConnectAsyncData *data;
+
+ simple = g_simple_async_result_new (G_OBJECT (proxy),
+ callback, user_data,
+ g_socks5_proxy_connect_async);
+
+ data = g_slice_new0 (ConnectAsyncData);
+
+ data->simple = simple;
+ data->io_stream = g_object_ref (io_stream);
+
+ if (cancellable)
+ data->cancellable = g_object_ref (cancellable);
+
+ g_object_get (G_OBJECT (proxy_address),
+ "destination-hostname", &data->hostname,
+ "destination-port", &data->port,
+ "username", &data->username,
+ "password", &data->password,
+ NULL);
+
+ g_simple_async_result_set_op_res_gpointer (simple, data,
+ (GDestroyNotify) free_connect_data);
+
+ data->buffer = g_malloc0 (SOCKS5_NEGO_MSG_LEN);
+ data->length = set_nego_msg (data->buffer,
+ data->username || data->password);
+ data->offset = 0;
+
+ do_write (nego_msg_write_cb, data);
+}
+
+
+static void
+nego_msg_write_cb (GObject *source,
+ GAsyncResult *res,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize written;
+
+ written = g_output_stream_write_finish (G_OUTPUT_STREAM (source),
+ res, &error);
+
+ if (written < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += written;
+
+ if (data->offset == data->length)
+ {
+ g_free (data->buffer);
+
+ data->buffer = g_malloc0 (SOCKS5_NEGO_REP_LEN);
+ data->length = SOCKS5_NEGO_REP_LEN;
+ data->offset = 0;
+
+ do_read (nego_reply_read_cb, data);
+ }
+ else
+ {
+ do_write (nego_msg_write_cb, data);
+ }
+}
+
+static void
+nego_reply_read_cb (GObject *source,
+ GAsyncResult *res,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize read;
+
+ read = g_input_stream_read_finish (G_INPUT_STREAM (source),
+ res, &error);
+
+ if (read < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += read;
+
+ if (data->offset == data->length)
+ {
+ GError *error;
+ gboolean must_auth = FALSE;
+ gboolean has_auth = data->username || data->password;
+
+ if (!parse_nego_reply (data->buffer, has_auth, &must_auth, &error))
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ if (must_auth)
+ {
+ g_free (data->buffer);
+
+ data->buffer = g_malloc0 (SOCKS5_AUTH_MSG_LEN);
+ data->length = set_auth_msg (data->buffer,
+ data->username,
+ data->password,
+ &error);
+ data->offset = 0;
+
+ if (data->length < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ do_write (auth_msg_write_cb, data);
+ }
+ else
+ {
+ send_connect_msg (data);
+ }
+ }
+ else
+ {
+ do_read (nego_reply_read_cb, data);
+ }
+}
+
+static void
+auth_msg_write_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize written;
+
+ written = g_output_stream_write_finish (G_OUTPUT_STREAM (source),
+ result, &error);
+
+ if (written < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += written;
+
+ if (data->offset == data->length)
+ {
+ g_free (data->buffer);
+
+ data->buffer = g_malloc0 (SOCKS5_NEGO_REP_LEN);
+ data->length = SOCKS5_NEGO_REP_LEN;
+ data->offset = 0;
+
+ do_read (auth_reply_read_cb, data);
+ }
+ else
+ {
+ do_write (auth_msg_write_cb, data);
+ }
+}
+
+static void
+auth_reply_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize read;
+
+ read = g_input_stream_read_finish (G_INPUT_STREAM (source),
+ result, &error);
+
+ if (read < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += read;
+
+ if (data->offset == data->length)
+ {
+ if (!check_auth_status (data->buffer, &error))
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ send_connect_msg (data);
+ }
+ else
+ {
+ do_read (auth_reply_read_cb, data);
+ }
+}
+
+static void
+send_connect_msg (ConnectAsyncData *data)
+{
+ GError *error = NULL;
+
+ g_free (data->buffer);
+
+ data->buffer = g_malloc0 (SOCKS5_CONN_MSG_LEN);
+ data->length = set_connect_msg (data->buffer,
+ data->hostname,
+ data->port,
+ &error);
+ data->offset = 0;
+
+ if (data->length < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ do_write (connect_msg_write_cb, data);
+}
+
+static void
+connect_msg_write_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize written;
+
+ written = g_output_stream_write_finish (G_OUTPUT_STREAM (source),
+ result, &error);
+
+ if (written < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += written;
+
+ if (data->offset == data->length)
+ {
+ g_free (data->buffer);
+
+ data->buffer = g_malloc0 (SOCKS5_CONN_REP_LEN);
+ data->length = 4;
+ data->offset = 0;
+
+ do_read (connect_reply_read_cb, data);
+ }
+ else
+ {
+ do_write (connect_msg_write_cb, data);
+ }
+}
+
+static void
+connect_reply_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize read;
+
+ read = g_input_stream_read_finish (G_INPUT_STREAM (source),
+ result, &error);
+
+ if (read < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += read;
+
+ if (data->offset == data->length)
+ {
+ gint atype;
+
+ if (!parse_connect_reply (data->buffer, &atype, &error))
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ switch (atype)
+ {
+ case SOCKS5_ATYP_IPV4:
+ data->length = 6;
+ data->offset = 0;
+ do_read (connect_addr_read_cb, data);
+ break;
+
+ case SOCKS5_ATYP_IPV6:
+ data->length = 18;
+ data->offset = 0;
+ do_read (connect_addr_read_cb, data);
+ break;
+
+ case SOCKS5_ATYP_DOMAINNAME:
+ data->length = 1;
+ data->offset = 0;
+ do_read (connect_addr_len_read_cb, data);
+ break;
+ }
+ }
+ else
+ {
+ do_read (connect_reply_read_cb, data);
+ }
+}
+
+static void
+connect_addr_len_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize read;
+
+ read = g_input_stream_read_finish (G_INPUT_STREAM (source),
+ result, &error);
+
+ if (read < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->length = data->buffer[0] + 2;
+ data->offset = 0;
+
+ do_read (connect_addr_read_cb, data);
+}
+
+static void
+connect_addr_read_cb (GObject *source,
+ GAsyncResult *result,
+ gpointer user_data)
+{
+ GError *error = NULL;
+ ConnectAsyncData *data = user_data;
+ gssize read;
+
+ read = g_input_stream_read_finish (G_INPUT_STREAM (source),
+ result, &error);
+
+ if (read < 0)
+ {
+ complete_async_from_error (data, error);
+ return;
+ }
+
+ data->offset += read;
+
+ if (data->offset == data->length)
+ {
+ GSimpleAsyncResult *simple = data->simple;
+ g_simple_async_result_complete (simple);
+ g_object_unref (simple);
+ }
+ else
+ {
+ do_read (connect_reply_read_cb, data);
+ }
+}
+
+static GIOStream *
+g_socks5_proxy_connect_finish (GProxy *proxy,
+ GAsyncResult *result,
+ GError **error)
+{
+ GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
+ ConnectAsyncData *data = g_simple_async_result_get_op_res_gpointer (simple);
+
+ if (g_simple_async_result_propagate_error (simple, error))
+ return NULL;
+
+ return g_object_ref (data->io_stream);
+}
+
+static gboolean
+g_socks5_proxy_supports_hostname (GProxy *proxy)
+{
+ return TRUE;
+}
+
+static void
+g_socks5_proxy_class_init (GSocks5ProxyClass *class)
+{
+ GObjectClass *object_class;
+
+ object_class = (GObjectClass *) class;
+ object_class->finalize = g_socks5_proxy_finalize;
+}
+
+static void
+g_socks5_proxy_iface_init (GProxyInterface *proxy_iface)
+{
+ proxy_iface->connect = g_socks5_proxy_connect;
+ proxy_iface->connect_async = g_socks5_proxy_connect_async;
+ proxy_iface->connect_finish = g_socks5_proxy_connect_finish;
+ proxy_iface->supports_hostname = g_socks5_proxy_supports_hostname;
+}
diff --git a/gio/gsocks5proxy.h b/gio/gsocks5proxy.h
new file mode 100644
index 0000000..c55d603
--- /dev/null
+++ b/gio/gsocks5proxy.h
@@ -0,0 +1,48 @@
+ /* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright (C) 2008, 2010 Collabora, Ltd.
+ * Copyright (C) 2008 Nokia Corporation. All rights reserved.
+ *
+ * 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.
+ *
+ * Author: Youness Alaoui <youness alaoui collabora co uk
+ *
+ * Contributors:
+ * Nicolas Dufresne <nicolas dufresne collabora co uk>
+ */
+
+#ifndef __G_SOCKS5_PROXY_H__
+#define __G_SOCKS5_PROXY_H__
+
+#include <gio/giotypes.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_SOCKS5_PROXY (_g_socks5_proxy_get_type ())
+#define G_SOCKS5_PROXY(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_SOCKS5_PROXY, GSocks5Proxy))
+#define G_SOCKS5_PROXY_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_SOCKS5_PROXY, GSocks5ProxyClass))
+#define G_IS_SOCKS5_PROXY(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_SOCKS5_PROXY))
+#define G_IS_SOCKS5_PROXY_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_SOCKS5_PROXY))
+#define G_SOCKS5_PROXY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_SOCKS5_PROXY, GSocks5ProxyClass))
+
+typedef struct _GSocks5Proxy GSocks5Proxy;
+typedef struct _GSocks5ProxyClass GSocks5ProxyClass;
+
+GType _g_socks5_proxy_get_type (void);
+
+G_END_DECLS
+
+#endif /* __SOCKS5_PROXY_H__ */
diff --git a/po/POTFILES.in b/po/POTFILES.in
index 060f122..1861177 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -102,6 +102,7 @@ gio/gsocketconnection.c
gio/gsocketinputstream.c
gio/gsocketlistener.c
gio/gsocketoutputstream.c
+gio/gsocks5proxy.c
gio/gtcpconnection.c
gio/gthemedicon.c
gio/gthreadedsocketservice.c
[
Date Prev][
Date Next] [
Thread Prev][
Thread Next]
[
Thread Index]
[
Date Index]
[
Author Index]
