--- /dev/null
+/* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright (C) 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.
+ *
+ * Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
+ */
+
+#include "config.h"
+
+#include "gproxy.h"
+
+#include "giomodule.h"
+#include "giomodule-priv.h"
+#include "glibintl.h"
+
+/**
+ * SECTION:gproxy
+ * @short_description: Interface for proxy handling
+ *
+ * A #GProxy handles connecting to a remote host via a given type of
+ * proxy server. It is implemented by the 'gio-proxy' extension point.
+ * The extensions are named after their proxy protocol name. As an
+ * example, a SOCKS5 proxy implementation can be retrieved with the
+ * name 'socks5' using the function
+ * g_io_extension_point_get_extension_by_name().
+ *
+ * Since: 2.26
+ **/
+
+G_DEFINE_INTERFACE (GProxy, g_proxy, G_TYPE_OBJECT)
+
+static void
+g_proxy_default_init (GProxyInterface *iface)
+{
+}
+
+/**
+ * g_proxy_get_default_for_protocol:
+ * @protocol: the proxy protocol name (e.g. http, socks, etc)
+ *
+ * Lookup "gio-proxy" extension point for a proxy implementation that supports
+ * specified protocol.
+ *
+ * Return value: return a #GProxy or NULL if protocol is not supported.
+ *
+ * Since: 2.26
+ **/
+GProxy *
+g_proxy_get_default_for_protocol (const gchar *protocol)
+{
+ GIOExtensionPoint *ep;
+ GIOExtension *extension;
+
+ /* Ensure proxy modules loaded */
+ _g_io_modules_ensure_loaded ();
+
+ ep = g_io_extension_point_lookup (G_PROXY_EXTENSION_POINT_NAME);
+
+ extension = g_io_extension_point_get_extension_by_name (ep, protocol);
+
+ if (extension)
+ return g_object_new (g_io_extension_get_type (extension), NULL);
+
+ return NULL;
+}
+
+/**
+ * g_proxy_connect:
+ * @proxy: a #GProxy
+ * @io_stream: a #GIOStream
+ * @proxy_address: a #GProxyAddress
+ * @cancellable: a #GCancellable
+ * @error: return #GError
+ *
+ * Given @io_stream to communicate with a proxy (eg, a
+ * #GSocketConnection that is connected to the proxy server), this
+ * does the necessary handshake to connect to @proxy_address, and if
+ * required, wraps the #GIOStream to handle proxy payload.
+ *
+ * Return value: a #GIOStream that will replace @io_stream. This might
+ * be the same as @io_stream, in which case a reference
+ * will be added.
+ *
+ * Since: 2.26
+ */
+GIOStream *
+g_proxy_connect (GProxy *proxy,
+ GIOStream *io_stream,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GError **error)
+{
+ GProxyInterface *iface;
+
+ g_return_val_if_fail (G_IS_PROXY (proxy), NULL);
+
+ iface = G_PROXY_GET_IFACE (proxy);
+
+ return (* iface->connect) (proxy,
+ io_stream,
+ proxy_address,
+ cancellable,
+ error);
+}
+
+/**
+ * g_proxy_connect_async:
+ * @proxy: a #GProxy
+ * @io-stream: a #GIOStream
+ * @proxy_address: a #GProxyAddress
+ * @cancellable: a #GCancellable
+ * @callback: a #GAsyncReadyCallback
+ * @user_data: callback data
+ *
+ * Asynchronous version of g_proxy_connect().
+ *
+ * Since: 2.26
+ */
+void
+g_proxy_connect_async (GProxy *proxy,
+ GIOStream *io_stream,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data)
+{
+ GProxyInterface *iface;
+
+ g_return_if_fail (G_IS_PROXY (proxy));
+
+ iface = G_PROXY_GET_IFACE (proxy);
+
+ (* iface->connect_async) (proxy,
+ io_stream,
+ proxy_address,
+ cancellable,
+ callback,
+ user_data);
+}
+
+/**
+ * g_proxy_connect_finish:
+ * @proxy: a #GProxy
+ * @result: a #GAsyncRetult
+ * @error: return #GError
+ *
+ * See g_proxy_connect().
+ *
+ * Return value: a #GIOStream.
+ *
+ * Since: 2.26
+ */
+GIOStream *
+g_proxy_connect_finish (GProxy *proxy,
+ GAsyncResult *result,
+ GError **error)
+{
+ GProxyInterface *iface;
+
+ g_return_val_if_fail (G_IS_PROXY (proxy), NULL);
+
+ iface = G_PROXY_GET_IFACE (proxy);
+
+ return (* iface->connect_finish) (proxy, result, error);
+}
+
+/**
+ * g_proxy_supports_hostname:
+ * @proxy: a #GProxy
+ *
+ * Some proxy protocols expect to be passed a hostname, which they
+ * will resolve to an IP address themselves. Others, like SOCKS4, do
+ * not allow this. This function will return %FALSE if @proxy is
+ * implementing such a protocol. When %FALSE is returned, the caller
+ * should resolve the destination hostname first, and then pass a
+ * #GProxyAddress containing the stringified IP address to
+ * g_proxy_connect() or g_proxy_connect_async().
+ *
+ * Return value: %TRUE if hostname resolution is supported.
+ *
+ * Since: 2.26
+ */
+gboolean
+g_proxy_supports_hostname (GProxy *proxy)
+{
+ GProxyInterface *iface;
+
+ g_return_val_if_fail (G_IS_PROXY (proxy), NULL);
+
+ iface = G_PROXY_GET_IFACE (proxy);
+
+ return (* iface->supports_hostname) (proxy);
+}
--- /dev/null
+/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
+
+/* GIO - GLib Input, Output and Streaming Library
+ *
+ * Copyright (C) 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.
+ *
+ * Author: 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_H__
+#define __G_PROXY_H__
+
+#include <gio/giotypes.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_PROXY (g_proxy_get_type ())
+#define G_PROXY(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_PROXY, GProxy))
+#define G_IS_PROXY(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_PROXY))
+#define G_PROXY_GET_IFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), G_TYPE_PROXY, GProxyInterface))
+
+/**
+ * G_PROXY_EXTENSION_POINT_NAME:
+ *
+ * Extension point for proxy functionality.
+ * See <link linkend="extending-gio">Extending GIO</link>.
+ *
+ * Since: 2.26
+ */
+#define G_PROXY_EXTENSION_POINT_NAME "gio-proxy"
+
+/**
+ * GProxy:
+ *
+ * Interface that handles proxy connection and payload.
+ *
+ * Since: 2.26
+ */
+typedef struct _GProxyInterface GProxyInterface;
+
+/**
+ * GProxyInterface:
+ * @g_iface: The parent interface.
+ * @connect: Connect to proxy server and wrap (if required) the #connection
+ * to handle payload.
+ * @connect_async: Same has connect() but asynchronous.
+ * @connect_finish: Returns the result of connect_async()
+ *
+ * Provides an interface for handling proxy connection and payload.
+ *
+ * Since: 2.26
+ */
+struct _GProxyInterface
+{
+ GTypeInterface g_iface;
+
+ /* Virtual Table */
+
+ GIOStream * (* connect) (GProxy *proxy,
+ GIOStream *connection,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GError **error);
+
+ void (* connect_async) (GProxy *proxy,
+ GIOStream *connection,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+
+ GIOStream * (* connect_finish) (GProxy *proxy,
+ GAsyncResult *result,
+ GError **error);
+
+ gboolean (* supports_hostname) (GProxy *proxy);
+};
+
+GType g_proxy_get_type (void) G_GNUC_CONST;
+
+GProxy *g_proxy_get_default_for_protocol (const gchar *protocol);
+
+GIOStream *g_proxy_connect (GProxy *proxy,
+ GIOStream *connection,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GError **error);
+
+void g_proxy_connect_async (GProxy *proxy,
+ GIOStream *connection,
+ GProxyAddress *proxy_address,
+ GCancellable *cancellable,
+ GAsyncReadyCallback callback,
+ gpointer user_data);
+
+GIOStream *g_proxy_connect_finish (GProxy *proxy,
+ GAsyncResult *result,
+ GError **error);
+
+gboolean g_proxy_supports_hostname (GProxy *proxy);
+
+G_END_DECLS
+
+#endif /* __G_PROXY_H__ */