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/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* 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 2.1 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/>.
*
* Author: Nicolas Dufresne <nicolas.dufresne@collabora.co.uk>
*/
#include "config.h"
#include <proxy.h>
#include <stdlib.h>
#include <string.h>
#include "glibproxyresolver.h"
#include <glib.h>
#include <glib/gi18n-lib.h>
struct _GLibproxyResolver {
GObject parent_instance;
pxProxyFactory *factory;
};
static void g_libproxy_resolver_iface_init (GProxyResolverInterface *iface);
#ifdef GLIBPROXY_MODULE
static void
g_libproxy_resolver_class_finalize (GLibproxyResolverClass *klass)
{
}
G_DEFINE_DYNAMIC_TYPE_EXTENDED (GLibproxyResolver,
g_libproxy_resolver,
G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE_DYNAMIC (G_TYPE_PROXY_RESOLVER,
g_libproxy_resolver_iface_init))
#else
G_DEFINE_TYPE_EXTENDED (GLibproxyResolver,
g_libproxy_resolver,
G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (G_TYPE_PROXY_RESOLVER,
g_libproxy_resolver_iface_init))
#endif
static void
g_libproxy_resolver_finalize (GObject *object)
{
GLibproxyResolver *resolver = G_LIBPROXY_RESOLVER (object);
if (resolver->factory)
{
px_proxy_factory_free (resolver->factory);
resolver->factory = NULL;
}
/* must chain up */
G_OBJECT_CLASS (g_libproxy_resolver_parent_class)->finalize (object);
}
static gboolean
is_running_environment_proxy_test (void)
{
return g_strcmp0 (g_getenv ("GIO_PROXY_TEST_NAME"), "environment") == 0;
}
static void
g_libproxy_resolver_init (GLibproxyResolver *resolver)
{
if (!is_running_environment_proxy_test ())
resolver->factory = px_proxy_factory_new ();
}
static gboolean
g_libproxy_resolver_is_supported (GProxyResolver *object)
{
GLibproxyResolver *resolver = G_LIBPROXY_RESOLVER (object);
return resolver->factory != NULL;
}
static gchar **
copy_proxies (gchar **proxies)
{
gchar **copy;
int len = 0;
int i, j;
GError *error = NULL;
for (i = 0; proxies[i]; i++)
{
if (!strncmp ("socks://", proxies[i], 8))
len += 3;
else
len++;
}
copy = g_new (gchar *, len + 1);
for (i = j = 0; proxies[i]; i++, j++)
{
if (!g_uri_is_valid (proxies[i], G_URI_FLAGS_NONE, &error))
{
g_warning ("Received invalid URI %s from libproxy: %s", proxies[i], error->message);
g_clear_error (&error);
j--;
continue;
}
if (!strncmp ("socks://", proxies[i], 8))
{
copy[j++] = g_strdup_printf ("socks5://%s", proxies[i] + 8);
copy[j++] = g_strdup_printf ("socks4a://%s", proxies[i] + 8);
copy[j] = g_strdup_printf ("socks4://%s", proxies[i] + 8);
}
else
{
copy[j] = g_strdup (proxies[i]);
}
}
copy[j] = NULL;
return copy;
}
static void
get_libproxy_proxies (GTask *task,
gpointer source_object,
gpointer task_data,
GCancellable *cancellable)
{
GLibproxyResolver *resolver = source_object;
const gchar *uri = task_data;
GError *error = NULL;
gchar **proxies;
if (g_task_return_error_if_cancelled (task))
return;
proxies = px_proxy_factory_get_proxies (resolver->factory, uri);
if (proxies)
{
/* We always copy to be able to translate "socks" entry into
* three entries ("socks5", "socks4a", "socks4").
*/
g_task_return_pointer (task, copy_proxies (proxies), (GDestroyNotify) g_strfreev);
px_proxy_factory_free_proxies (proxies);
}
else
{
g_set_error_literal (&error, G_IO_ERROR, G_IO_ERROR_FAILED,
_("Proxy resolver internal error."));
g_task_return_error (task, error);
}
}
static gchar **
g_libproxy_resolver_lookup (GProxyResolver *iresolver,
const gchar *uri,
GCancellable *cancellable,
GError **error)
{
GLibproxyResolver *resolver = G_LIBPROXY_RESOLVER (iresolver);
GTask *task;
gchar **proxies;
task = g_task_new (resolver, cancellable, NULL, NULL);
g_task_set_name (task, "[glib-networking] g_libproxy_resolver_lookup");
g_task_set_task_data (task, g_strdup (uri), g_free);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread_sync (task, get_libproxy_proxies);
proxies = g_task_propagate_pointer (task, error);
g_object_unref (task);
return proxies;
}
static void
g_libproxy_resolver_lookup_async (GProxyResolver *resolver,
const gchar *uri,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
GTask *task;
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, g_libproxy_resolver_lookup_async);
g_task_set_name (task, "[glib-networking] g_libproxy_resolver_lookup_async");
g_task_set_task_data (task, g_strdup (uri), g_free);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread (task, get_libproxy_proxies);
g_object_unref (task);
}
static gchar **
g_libproxy_resolver_lookup_finish (GProxyResolver *resolver,
GAsyncResult *result,
GError **error)
{
g_return_val_if_fail (g_task_is_valid (result, resolver), NULL);
g_return_val_if_fail (g_task_get_source_tag (G_TASK (result)) == g_libproxy_resolver_lookup_async, NULL);
return g_task_propagate_pointer (G_TASK (result), error);
}
static void
g_libproxy_resolver_class_init (GLibproxyResolverClass *resolver_class)
{
GObjectClass *object_class;
object_class = G_OBJECT_CLASS (resolver_class);
object_class->finalize = g_libproxy_resolver_finalize;
}
static void
g_libproxy_resolver_iface_init (GProxyResolverInterface *iface)
{
iface->is_supported = g_libproxy_resolver_is_supported;
iface->lookup = g_libproxy_resolver_lookup;
iface->lookup_async = g_libproxy_resolver_lookup_async;
iface->lookup_finish = g_libproxy_resolver_lookup_finish;
}
#ifdef GLIBPROXY_MODULE
void
g_libproxy_resolver_register (GIOModule *module)
{
g_libproxy_resolver_register_type (G_TYPE_MODULE (module));
if (!module)
g_io_extension_point_register (G_PROXY_RESOLVER_EXTENSION_POINT_NAME);
g_io_extension_point_implement (G_PROXY_RESOLVER_EXTENSION_POINT_NAME,
g_libproxy_resolver_get_type(),
"libproxy",
10);
}
#endif
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