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[glib] Adding GProxyAddressEnumerator class

commit a7e0e8fc0852255d430daa90e7345db67a2a9594
Author: Nicolas Dufresne <nicolas dufresne collabora co uk>
Date:   Tue Aug 10 15:25:11 2010 -0400

    Adding GProxyAddressEnumerator class
    
    An implementation of GSocketAddressEnumerator that handles proxy
    enumeration. This class is mainly usefull for Connectables implementation
    such as NetworkService, NetworkAddress and SocketAddress to handle proxies.
    
    Reviewed-by: Dan Winship <danw gnome org>

 docs/reference/gio/gio-sections.txt |   11 +
 docs/reference/gio/gio.types        |    1 +
 gio/Makefile.am                     |    2 +
 gio/gio.h                           |    1 +
 gio/gio.symbols                     |    6 +
 gio/giotypes.h                      |    1 +
 gio/gproxyaddressenumerator.c       |  728 +++++++++++++++++++++++++++++++++++
 gio/gproxyaddressenumerator.h       |   73 ++++
 8 files changed, 823 insertions(+), 0 deletions(-)
---
diff --git a/docs/reference/gio/gio-sections.txt b/docs/reference/gio/gio-sections.txt
index 9bcb5bd..e3740c5 100644
--- a/docs/reference/gio/gio-sections.txt
+++ b/docs/reference/gio/gio-sections.txt
@@ -1638,6 +1638,8 @@ GSocketAddressEnumerator
 g_socket_address_enumerator_next
 g_socket_address_enumerator_next_async
 g_socket_address_enumerator_next_finish
+<SUBSECTION>
+GProxyAddressEnumerator
 <SUBSECTION Standard>
 G_IS_SOCKET_CONNECTABLE
 G_SOCKET_CONNECTABLE
@@ -1650,7 +1652,16 @@ G_SOCKET_ADDRESS_ENUMERATOR
 G_SOCKET_ADDRESS_ENUMERATOR_CLASS
 G_SOCKET_ADDRESS_ENUMERATOR_GET_CLASS
 G_TYPE_SOCKET_ADDRESS_ENUMERATOR
-<SUBSECTION Private>
+GProxyAddressEnumeratorClass
+G_IS_PROXY_ADDRESS_ENUMERATOR
+G_IS_PROXY_ADDRESS_ENUMERATOR_CLASS
+G_PROXY_ADDRESS_ENUMERATOR
+G_PROXY_ADDRESS_ENUMERATOR_CLASS
+G_PROXY_ADDRESS_ENUMERATOR_GET_CLASS
+G_TYPE_PROXY_ADDRESS_ENUMERATOR
+<SUBSECTION Private>
+GProxyAddressEnumeratorPrivate
+g_proxy_address_enumerator_get_type
 g_socket_address_enumerator_get_type
 g_socket_connectable_get_type
 </SECTION>
diff --git a/docs/reference/gio/gio.types b/docs/reference/gio/gio.types
index 3ca12f2..1b0a4da 100644
--- a/docs/reference/gio/gio.types
+++ b/docs/reference/gio/gio.types
@@ -75,6 +75,7 @@ g_output_stream_get_type
 g_output_stream_splice_flags_get_type
 g_password_save_get_type
 g_permission_get_type
+g_proxy_address_enumerator_get_type
 g_proxy_address_get_type
 g_proxy_get_type
 g_proxy_resolver_get_type
diff --git a/gio/Makefile.am b/gio/Makefile.am
index 9774a12..30cce03 100644
--- a/gio/Makefile.am
+++ b/gio/Makefile.am
@@ -352,6 +352,7 @@ libgio_2_0_la_SOURCES =		\
 	gsocketoutputstream.h	\
 	gproxy.c		\
 	gproxyaddress.c         \
+	gproxyaddressenumerator.c \
 	gsocketservice.c	\
 	gsrvtarget.c		\
 	gtcpconnection.c	\
@@ -485,6 +486,7 @@ gio_headers =			\
 	gpermission.h 		\
 	gproxyaddress.h         \
 	gproxy.h		\
+	gproxyaddressenumerator.h \
 	gproxyresolver.h	\
 	gresolver.h		\
 	gseekable.h 		\
diff --git a/gio/gio.h b/gio/gio.h
index 1e265a2..ad16d90 100644
--- a/gio/gio.h
+++ b/gio/gio.h
@@ -94,6 +94,7 @@
 #include <gio/gpermission.h>
 #include <gio/gproxy.h>
 #include <gio/gproxyaddress.h>
+#include <gio/gproxyaddressenumerator.h>
 #include <gio/gproxyresolver.h>
 #include <gio/gresolver.h>
 #include <gio/gseekable.h>
diff --git a/gio/gio.symbols b/gio/gio.symbols
index 30a5a61..6b4e57a 100644
--- a/gio/gio.symbols
+++ b/gio/gio.symbols
@@ -1162,6 +1162,12 @@ g_proxy_address_get_password
 #endif
 #endif
 
+#if IN_HEADER(__G_PROXY_ADDRESS_ENUMERATOR_H__)
+#if IN_FILE(__G_PROXY_ADDRESS_ENUMERATOR_C__)
+g_proxy_address_enumerator_get_type
+#endif
+#endif
+
 #if IN_HEADER(__G_RESOLVER_H__)
 #if IN_FILE(__G_RESOLVER_C__)
 g_resolver_error_quark
diff --git a/gio/giotypes.h b/gio/giotypes.h
index 2240b8f..65788e3 100644
--- a/gio/giotypes.h
+++ b/gio/giotypes.h
@@ -208,6 +208,7 @@ typedef struct _GVfs                          GVfs; /* Dummy typedef */
 typedef struct _GProxyResolver                GProxyResolver;
 typedef struct _GProxy			      GProxy;
 typedef struct _GProxyAddress		      GProxyAddress;
+typedef struct _GProxyAddressEnumerator	      GProxyAddressEnumerator;
 
 /**
  * GVolume:
diff --git a/gio/gproxyaddressenumerator.c b/gio/gproxyaddressenumerator.c
new file mode 100644
index 0000000..7630897
--- /dev/null
+++ b/gio/gproxyaddressenumerator.c
@@ -0,0 +1,728 @@
+/* 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 "gproxyaddressenumerator.h"
+
+#include <string.h>
+
+#include "gasyncresult.h"
+#include "ginetaddress.h"
+#include "glibintl.h"
+#include "gnetworkaddress.h"
+#include "gnetworkingprivate.h"
+#include "gproxy.h"
+#include "gproxyaddress.h"
+#include "gproxyresolver.h"
+#include "gsimpleasyncresult.h"
+#include "gresolver.h"
+#include "gsocketaddress.h"
+#include "gsocketaddressenumerator.h"
+#include "gsocketconnectable.h"
+
+G_DEFINE_TYPE (GProxyAddressEnumerator, g_proxy_address_enumerator, G_TYPE_SOCKET_ADDRESS_ENUMERATOR);
+
+#define GET_PRIVATE(o) (G_PROXY_ADDRESS_ENUMERATOR (o)->priv)
+
+enum
+{
+  PROP_0,
+  PROP_URI,
+  PROP_CONNECTABLE
+};
+
+struct _GProxyAddressEnumeratorPrivate
+{
+  /* Destination address */
+  GSocketConnectable *connectable;
+  gchar		     *dest_uri;
+  gchar		     *dest_hostname;
+  guint16	      dest_port;
+  GList              *dest_ips;
+
+  /* Proxy enumeration */
+  gchar			  **proxies;
+  gchar			  **next_proxy;
+  GSocketAddressEnumerator *addr_enum;
+  GSocketAddress           *proxy_address;
+  gchar			   *proxy_type;
+  gchar			   *proxy_username;
+  gchar			   *proxy_password;
+  gboolean                  supports_hostname;
+  GList			   *next_dest_ip;
+
+  /* Async attributes */
+  GSimpleAsyncResult *simple;
+  GCancellable       *cancellable;
+};
+
+static void
+save_userinfo (GProxyAddressEnumeratorPrivate *priv,
+	       const gchar *proxy)
+{
+  gchar *userinfo;
+
+  if (priv->proxy_username)
+    {
+      g_free (priv->proxy_username);
+      priv->proxy_username = NULL;
+    }
+
+  if (priv->proxy_password)
+    {
+      g_free (priv->proxy_password);
+      priv->proxy_password = NULL;
+    }
+  
+  if (_g_uri_parse_authority (proxy, NULL, NULL, &userinfo))
+    {
+      if (userinfo)
+	{
+	  gchar **split = g_strsplit (userinfo, ":", 2);
+
+	  if (split[0] != NULL)
+	    {
+	      priv->proxy_username = g_uri_unescape_string (split[0], NULL);
+	      if (split[1] != NULL)
+		priv->proxy_password = g_uri_unescape_string (split[1], NULL);
+	    }
+
+	  g_strfreev (split);
+	  g_free (userinfo);
+	}
+    }
+}
+
+static void
+next_enumerator (GProxyAddressEnumeratorPrivate *priv)
+{
+  if (priv->proxy_address)
+    return;
+
+  while (priv->addr_enum == NULL && *priv->next_proxy)
+    {
+      GSocketConnectable *connectable = NULL;
+      const gchar *proxy_uri;
+      GProxy *proxy;
+
+      proxy_uri = *priv->next_proxy++;
+      g_free (priv->proxy_type);
+      priv->proxy_type = g_uri_parse_scheme (proxy_uri);
+
+      if (priv->proxy_type == NULL)
+	continue;
+
+      /* Assumes hostnames are supported for unkown protocols */
+      priv->supports_hostname = TRUE;
+      proxy = g_proxy_get_default_for_protocol (priv->proxy_type);
+      if (proxy)
+        {
+	  priv->supports_hostname = g_proxy_supports_hostname (proxy);
+	  g_object_unref (proxy);
+        }
+
+      if (strcmp ("direct", priv->proxy_type) == 0)
+	{
+	  if (priv->connectable)
+	    connectable = g_object_ref (priv->connectable);
+	  else
+	    connectable = g_network_address_new (priv->dest_hostname,
+						 priv->dest_port);
+	}
+      else
+	{
+	  GError *error = NULL;
+
+	  connectable = g_network_address_parse_uri (proxy_uri, 0, &error);
+
+	  if (error)
+	    {
+	      g_warning ("Invalid proxy URI '%s': %s",
+			 proxy_uri, error->message);
+	      g_error_free (error);
+	    }
+
+	  save_userinfo (priv, proxy_uri);
+	}
+
+      if (connectable)
+	{
+	  priv->addr_enum = g_socket_connectable_enumerate (connectable);
+	  g_object_unref (connectable);
+	}
+    }
+}
+
+static GSocketAddress *
+g_proxy_address_enumerator_next (GSocketAddressEnumerator  *enumerator,
+				 GCancellable              *cancellable,
+				 GError                   **error)
+{
+  GProxyAddressEnumeratorPrivate *priv = GET_PRIVATE (enumerator);
+  GSocketAddress *result = NULL;
+  GError *first_error = NULL;
+
+  if (priv->proxies == NULL)
+    {
+      GProxyResolver *resolver = g_proxy_resolver_get_default ();
+      priv->proxies = g_proxy_resolver_lookup (resolver,
+					       priv->dest_uri,
+					       cancellable,
+					       error);
+      priv->next_proxy = priv->proxies;
+
+      if (priv->proxies == NULL)
+	return NULL;
+    }
+
+  while (result == NULL && (*priv->next_proxy || priv->addr_enum))
+    {
+      gchar *dest_hostname;
+      GInetSocketAddress *inetsaddr;
+      GInetAddress *inetaddr;
+      guint16 port;
+
+      next_enumerator (priv);
+
+      if (!priv->addr_enum)
+	continue;
+
+      if (priv->proxy_address == NULL)
+	{
+	  priv->proxy_address = g_socket_address_enumerator_next (
+				    priv->addr_enum,
+				    cancellable,
+				    first_error ? NULL : &first_error);
+	}
+
+      if (priv->proxy_address == NULL)
+	{
+	  g_object_unref (priv->addr_enum);
+	  priv->addr_enum = NULL;
+
+	  if (priv->dest_ips)
+	    {
+	      g_resolver_free_addresses (priv->dest_ips);
+	      priv->dest_ips = NULL;
+	    }
+
+	  continue;
+	}
+
+      if (strcmp ("direct", priv->proxy_type) == 0)
+	{
+	  result = priv->proxy_address;
+	  priv->proxy_address = NULL;
+	  continue;
+	}
+
+      if (!priv->supports_hostname)
+	{
+	  GInetAddress *dest_ip;
+
+	  if (!priv->dest_ips)
+	    {
+	      GResolver *resolver;
+
+	      resolver = g_resolver_get_default();
+	      priv->dest_ips = g_resolver_lookup_by_name (resolver,
+							  priv->dest_hostname,
+							  cancellable,
+							  first_error ? NULL : &first_error);
+	      g_object_unref (resolver);
+
+	      if (!priv->dest_ips)
+		{
+		  g_object_unref (priv->proxy_address);
+		  priv->proxy_address = NULL;
+		  continue;
+		}
+	    }
+
+	  if (!priv->next_dest_ip)
+	    priv->next_dest_ip = priv->dest_ips;
+	
+	  dest_ip = G_INET_ADDRESS (priv->next_dest_ip->data);
+	  dest_hostname = g_inet_address_to_string (dest_ip);
+
+	  priv->next_dest_ip = g_list_next (priv->next_dest_ip);
+	}
+      else
+	{
+	  dest_hostname = g_strdup (priv->dest_hostname);
+	}
+	
+		 		  
+      g_return_val_if_fail (G_IS_INET_SOCKET_ADDRESS (priv->proxy_address),
+			    NULL);
+
+      inetsaddr = G_INET_SOCKET_ADDRESS (priv->proxy_address);
+      inetaddr = g_inet_socket_address_get_address (inetsaddr);
+      port = g_inet_socket_address_get_port (inetsaddr);
+
+      result = g_proxy_address_new (inetaddr, port,
+				    priv->proxy_type,
+				    dest_hostname, priv->dest_port,
+				    priv->proxy_username,
+				    priv->proxy_password);
+
+      g_free (dest_hostname);
+
+      if (priv->supports_hostname || priv->next_dest_ip == NULL)
+	{
+	  g_object_unref (priv->proxy_address);
+	  priv->proxy_address = NULL;
+	}
+    }
+
+  if (result == NULL && first_error)
+    g_propagate_error (error, first_error);
+  else if (first_error)
+    g_error_free (first_error);
+
+  return result;
+}
+
+
+
+static void
+complete_async (GProxyAddressEnumeratorPrivate *priv)
+{
+  GSimpleAsyncResult *simple = priv->simple;
+
+  if (priv->cancellable)
+    {
+      g_object_unref (priv->cancellable);
+      priv->cancellable = NULL;
+    }
+
+  priv->simple = NULL;
+  g_simple_async_result_complete (simple);
+  g_object_unref (simple);
+}
+
+static void
+save_result (GProxyAddressEnumeratorPrivate *priv)
+{
+  GSocketAddress *result;
+
+  if (strcmp ("direct", priv->proxy_type) == 0)
+    {
+      result = priv->proxy_address;
+      priv->proxy_address = NULL;
+    }
+  else
+    {
+      gchar *dest_hostname;
+      GInetSocketAddress *inetsaddr;
+      GInetAddress *inetaddr;
+      guint16 port;
+
+      if (!priv->supports_hostname)
+	{
+	  GInetAddress *dest_ip;
+
+	  if (!priv->next_dest_ip)
+	    priv->next_dest_ip = priv->dest_ips;
+
+	  dest_ip = G_INET_ADDRESS (priv->next_dest_ip->data);
+	  dest_hostname = g_inet_address_to_string (dest_ip);
+
+	  priv->next_dest_ip = g_list_next (priv->next_dest_ip);
+	}
+      else
+	{
+	  dest_hostname = g_strdup (priv->dest_hostname);
+	}
+
+      g_return_if_fail (G_IS_INET_SOCKET_ADDRESS (priv->proxy_address));
+
+      inetsaddr = G_INET_SOCKET_ADDRESS (priv->proxy_address);
+      inetaddr = g_inet_socket_address_get_address (inetsaddr);
+      port = g_inet_socket_address_get_port (inetsaddr);
+
+      result = g_proxy_address_new (inetaddr, port,
+				    priv->proxy_type,
+				    dest_hostname, priv->dest_port,
+				    priv->proxy_username,
+				    priv->proxy_password);
+
+      g_free (dest_hostname);
+
+      if (priv->supports_hostname || priv->next_dest_ip == NULL)
+	{
+	  g_object_unref (priv->proxy_address);
+	  priv->proxy_address = NULL;
+	}
+    }
+
+  g_simple_async_result_set_op_res_gpointer (priv->simple,
+					     result,
+					     g_object_unref);
+}
+
+static void
+dest_hostname_lookup_cb (GObject           *object,
+			 GAsyncResult      *result,
+			 gpointer           user_data)
+{
+  GError *error = NULL;
+  GProxyAddressEnumeratorPrivate *priv = user_data;
+  GSimpleAsyncResult *simple = priv->simple;
+
+  priv->dest_ips = g_resolver_lookup_by_name_finish (G_RESOLVER (object),
+						     result,
+						     &error);
+  if (priv->dest_ips)
+    {
+      save_result (priv);
+    }
+  else
+    {
+      g_simple_async_result_set_from_error (simple, error);
+      g_error_free (error);
+    }
+
+  complete_async (priv); 
+}
+
+static void
+address_enumerate_cb (GObject	   *object,
+		      GAsyncResult *result,
+		      gpointer	    user_data)
+{
+  GError *error = NULL;
+  GProxyAddressEnumeratorPrivate *priv = user_data;
+  GSimpleAsyncResult *simple = priv->simple;
+
+  priv->proxy_address =
+    g_socket_address_enumerator_next_finish (priv->addr_enum,
+					     result,
+					     &error);
+  if (priv->proxy_address)
+    {
+      if (!priv->supports_hostname && !priv->dest_ips)
+	{
+	  GResolver *resolver;
+	  resolver = g_resolver_get_default();
+	  g_resolver_lookup_by_name_async (resolver,
+					   priv->dest_hostname,
+					   priv->cancellable,
+					   dest_hostname_lookup_cb,
+					   priv);
+	  g_object_unref (resolver);
+	  return;
+	}
+
+      save_result (priv);
+    }
+  else if (*priv->next_proxy)
+    {
+      g_object_unref (priv->addr_enum);
+      priv->addr_enum = NULL;
+
+      if (priv->dest_ips)
+	{
+	  g_resolver_free_addresses (priv->dest_ips);
+	  priv->dest_ips = NULL;
+	}
+
+      next_enumerator (priv);
+
+      if (priv->addr_enum)
+	{
+	  g_socket_address_enumerator_next_async (priv->addr_enum,
+						  priv->cancellable,
+						  address_enumerate_cb,
+						  priv);
+	  return;
+	}
+    }
+
+  if (error)
+    {
+      g_simple_async_result_set_from_error (simple, error);
+      g_error_free (error);
+    }
+
+  complete_async (priv); 
+}
+
+static void
+proxy_lookup_cb (GObject      *object,
+		 GAsyncResult *result,
+		 gpointer      user_data)
+{
+  GError *error = NULL;
+  GProxyAddressEnumeratorPrivate *priv = user_data;
+  GSimpleAsyncResult *simple = priv->simple;
+
+  priv->proxies = g_proxy_resolver_lookup_finish (G_PROXY_RESOLVER (object),
+						  result,
+						  &error);
+  priv->next_proxy = priv->proxies;
+
+  if (error)
+    {
+      g_simple_async_result_set_from_error (simple, error);
+      g_error_free (error);
+    }
+  else
+    {
+      next_enumerator (priv);
+      if (priv->addr_enum)
+	{
+	  g_socket_address_enumerator_next_async (priv->addr_enum,
+						  priv->cancellable,
+						  address_enumerate_cb,
+						  priv);
+	  return;
+	}
+    }
+
+  complete_async (priv); 
+}
+
+static void
+g_proxy_address_enumerator_next_async (GSocketAddressEnumerator *enumerator,
+				       GCancellable             *cancellable,
+				       GAsyncReadyCallback       callback,
+				       gpointer                  user_data)
+{
+  GProxyAddressEnumeratorPrivate *priv = GET_PRIVATE (enumerator);
+
+  g_return_if_fail (priv->simple == NULL);
+  g_return_if_fail (priv->cancellable == NULL);
+
+  priv->simple = g_simple_async_result_new (G_OBJECT (enumerator),
+					    callback, user_data,
+					    g_proxy_address_enumerator_next_async);
+
+  priv->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
+
+  if (priv->proxies == NULL)
+    {
+      GProxyResolver *resolver = g_proxy_resolver_get_default ();
+      g_proxy_resolver_lookup_async (resolver,
+				     priv->dest_uri,
+				     cancellable,
+				     proxy_lookup_cb,
+				     priv);
+      return;
+    }
+
+  if (priv->addr_enum)
+    {
+      if (priv->proxy_address)
+	{
+	  save_result (priv);
+	}
+      else
+	{
+	  g_socket_address_enumerator_next_async (priv->addr_enum,
+						  cancellable,
+						  address_enumerate_cb,
+						  priv);
+	  return;
+	}
+    }
+
+  g_simple_async_result_complete_in_idle (priv->simple);
+
+  g_object_unref (priv->simple);
+  priv->simple = NULL;
+
+  if (priv->cancellable)
+    {
+      g_object_unref (priv->cancellable);
+      priv->cancellable = NULL;
+    }
+}
+
+static GSocketAddress *
+g_proxy_address_enumerator_next_finish (GSocketAddressEnumerator  *enumerator,
+					GAsyncResult              *result,
+					GError                   **error)
+{
+  GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (result);
+  GSocketAddress *address;
+
+  if (g_simple_async_result_propagate_error (simple, error))
+    return NULL;
+
+  address = g_simple_async_result_get_op_res_gpointer (simple);
+  if (address)
+    g_object_ref (address);
+
+  return address;
+}
+
+static void
+g_proxy_address_enumerator_get_property (GObject        *object,
+					 guint           property_id,
+					 GValue         *value,
+					 GParamSpec     *pspec)
+{
+  GProxyAddressEnumeratorPrivate *priv = GET_PRIVATE (object);
+  switch (property_id)
+    {
+      case PROP_URI:
+	g_value_set_string (value, priv->dest_uri);
+	break;
+
+      case PROP_CONNECTABLE:
+	g_value_set_object (value, priv->connectable);
+	break;
+
+      default:
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+g_proxy_address_enumerator_set_property (GObject        *object,
+					 guint           property_id,
+					 const GValue   *value,
+					 GParamSpec     *pspec)
+{
+  GProxyAddressEnumeratorPrivate *priv = GET_PRIVATE (object);
+  switch (property_id)
+    {
+      case PROP_URI:
+	  {
+	    const gchar *uri;
+
+	    g_free (priv->dest_hostname);
+	    priv->dest_hostname = NULL;
+	    priv->dest_port = 0;
+
+	    g_free (priv->dest_uri);
+	    priv->dest_uri = NULL;
+
+	    uri = g_value_get_string (value);
+
+	    if (uri)
+	      {
+		GSocketConnectable *conn;
+
+		conn = g_network_address_parse_uri (uri, 0, NULL);
+		if (conn)
+		  {
+		    priv->dest_uri = g_strdup (uri);
+		    
+		    g_object_get (conn,
+				  "hostname", &priv->dest_hostname,
+				  "port", &priv->dest_port,
+				  NULL);
+
+		    g_object_unref (conn);
+		  }
+		else
+		  g_warning ("Invalid URI '%s'", uri);
+	      }
+
+	    break;
+	  }
+
+      case PROP_CONNECTABLE:
+	  priv->connectable = g_value_dup_object (value);
+	  break;
+
+      default:
+	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+    }
+}
+
+static void
+g_proxy_address_enumerator_finalize (GObject *object)
+{
+  GProxyAddressEnumeratorPrivate *priv = GET_PRIVATE (object);
+
+  if (priv->connectable)
+    g_object_unref (priv->connectable);
+
+  g_free (priv->dest_uri);
+  g_free (priv->dest_hostname);
+
+  if (priv->dest_ips)
+    g_resolver_free_addresses (priv->dest_ips);
+
+  g_strfreev (priv->proxies);
+
+  if (priv->addr_enum)
+    g_object_unref (priv->addr_enum);
+
+  g_free (priv->proxy_type);
+  g_free (priv->proxy_username);
+  g_free (priv->proxy_password);
+
+  if (priv->cancellable)
+    g_object_unref (priv->cancellable);
+
+  G_OBJECT_CLASS (g_proxy_address_enumerator_parent_class)->finalize (object);
+}
+
+static void
+g_proxy_address_enumerator_init (GProxyAddressEnumerator *self)
+{
+  self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self,
+					    G_TYPE_PROXY_ADDRESS_ENUMERATOR,
+					    GProxyAddressEnumeratorPrivate);
+}
+
+static void
+g_proxy_address_enumerator_class_init (GProxyAddressEnumeratorClass *proxy_enumerator_class)
+{
+  GObjectClass *object_class = G_OBJECT_CLASS (proxy_enumerator_class);
+  GSocketAddressEnumeratorClass *enumerator_class = G_SOCKET_ADDRESS_ENUMERATOR_CLASS (proxy_enumerator_class);
+
+  g_type_class_add_private (enumerator_class,
+			    sizeof (GProxyAddressEnumeratorPrivate));
+
+  object_class->set_property = g_proxy_address_enumerator_set_property;
+  object_class->get_property = g_proxy_address_enumerator_get_property;
+  object_class->finalize = g_proxy_address_enumerator_finalize;
+
+  enumerator_class->next = g_proxy_address_enumerator_next;
+  enumerator_class->next_async = g_proxy_address_enumerator_next_async;
+  enumerator_class->next_finish = g_proxy_address_enumerator_next_finish;
+
+  g_object_class_install_property (object_class,
+				   PROP_URI,
+				   g_param_spec_string ("uri",
+							P_("URI"),
+							P_("The destination URI, use none:// for generic socket"),
+							NULL,
+							G_PARAM_READWRITE |
+							G_PARAM_CONSTRUCT_ONLY |
+							G_PARAM_STATIC_STRINGS));
+
+  g_object_class_install_property (object_class,
+				   PROP_CONNECTABLE,
+				   g_param_spec_object ("connectable",
+							P_("Connectable"),
+							P_("The connectable being enumerated."),
+							G_TYPE_SOCKET_CONNECTABLE,
+							G_PARAM_READWRITE |
+							G_PARAM_CONSTRUCT_ONLY |
+							G_PARAM_STATIC_STRINGS));
+}
diff --git a/gio/gproxyaddressenumerator.h b/gio/gproxyaddressenumerator.h
new file mode 100644
index 0000000..2fb1104
--- /dev/null
+++ b/gio/gproxyaddressenumerator.h
@@ -0,0 +1,73 @@
+/* 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_ADDRESS_ENUMERATOR_H__
+#define __G_PROXY_ADDRESS_ENUMERATOR_H__
+
+#include <gio/gsocketaddressenumerator.h>
+
+G_BEGIN_DECLS
+
+#define G_TYPE_PROXY_ADDRESS_ENUMERATOR         (g_proxy_address_enumerator_get_type ())
+#define G_PROXY_ADDRESS_ENUMERATOR(o)           (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_PROXY_ADDRESS_ENUMERATOR, GProxyAddressEnumerator))
+#define G_PROXY_ADDRESS_ENUMERATOR_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_PROXY_ADDRESS_ENUMERATOR, GProxyAddressEnumeratorClass))
+#define G_IS_PROXY_ADDRESS_ENUMERATOR(o)        (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_PROXY_ADDRESS_ENUMERATOR))
+#define G_IS_PROXY_ADDRESS_ENUMERATOR_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_PROXY_ADDRESS_ENUMERATOR))
+#define G_PROXY_ADDRESS_ENUMERATOR_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_PROXY_ADDRESS_ENUMERATOR, GProxyAddressEnumeratorClass))
+
+/**
+ * GProxyAddressEnumerator:
+ *
+ * A subclass of #GSocketAddressEnumerator that takes another address
+ * enumerator and wraps its results in #GProxyAddress<!-- -->es as
+ * directed by the default #GProxyResolver.
+ */
+
+typedef struct _GProxyAddressEnumeratorClass GProxyAddressEnumeratorClass;
+typedef struct _GProxyAddressEnumeratorPrivate GProxyAddressEnumeratorPrivate;
+
+struct _GProxyAddressEnumerator
+{
+  GSocketAddressEnumerator parent_instance;
+  GProxyAddressEnumeratorPrivate *priv;
+};
+
+struct _GProxyAddressEnumeratorClass
+{
+  GSocketAddressEnumeratorClass parent_class;
+
+  void (*_g_reserved1) (void);
+  void (*_g_reserved2) (void);
+  void (*_g_reserved3) (void);
+  void (*_g_reserved4) (void);
+  void (*_g_reserved5) (void);
+  void (*_g_reserved6) (void);
+  void (*_g_reserved7) (void);
+};
+
+GType           g_proxy_address_enumerator_get_type    (void) G_GNUC_CONST;
+
+#endif /* __G_PROXY_ADDRESS_ENUMERATOR_H__ */
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