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d0a14469d0
Things compile and the test-suite passes. Still need to hook up gio.symbols and docs. There are still a bunch of TODOs left in the sources that needs to be addressed. Signed-off-by: David Zeuthen <davidz@redhat.com>
319 lines
11 KiB
C
319 lines
11 KiB
C
/*
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* Copyright © 2010 Red Hat, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2 of the licence or (at
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* your option) any later version.
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*
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* See the included COPYING file for more information.
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*
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* Author: David Zeuthen <davidz@redhat.com>
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*/
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/*
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Usage examples (modulo addresses / credentials).
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UNIX domain socket transport:
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Server:
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$ ./gdbus-example-peer --server --address unix:abstract=myaddr
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Server is listening at: unix:abstract=myaddr
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Client connected.
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Peer credentials: GCredentials:unix-user=500,unix-group=500,unix-process=13378
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Negotiated capabilities: unix-fd-passing=1
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Client said: Hey, it's 1273093080 already!
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Client:
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$ ./gdbus-example-peer --address unix:abstract=myaddr
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Connected.
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Negotiated capabilities: unix-fd-passing=1
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Server said: You said 'Hey, it's 1273093080 already!'. KTHXBYE!
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Nonce-secured TCP transport on the same host:
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Server:
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$ ./gdbus-example-peer --server --address nonce-tcp:
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Server is listening at: nonce-tcp:host=localhost,port=43077,noncefile=/tmp/gdbus-nonce-file-X1ZNCV
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Client connected.
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Peer credentials: (no credentials received)
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Negotiated capabilities: unix-fd-passing=0
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Client said: Hey, it's 1273093206 already!
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Client:
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$ ./gdbus-example-peer -address nonce-tcp:host=localhost,port=43077,noncefile=/tmp/gdbus-nonce-file-X1ZNCV
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Connected.
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Negotiated capabilities: unix-fd-passing=0
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Server said: You said 'Hey, it's 1273093206 already!'. KTHXBYE!
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TCP transport on two different hosts with a shared home directory:
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Server:
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host1 $ ./gdbus-example-peer --server --address tcp:host=0.0.0.0
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Server is listening at: tcp:host=0.0.0.0,port=46314
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Client connected.
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Peer credentials: (no credentials received)
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Negotiated capabilities: unix-fd-passing=0
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Client said: Hey, it's 1273093337 already!
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Client:
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host2 $ ./gdbus-example-peer -a tcp:host=host1,port=46314
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Connected.
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Negotiated capabilities: unix-fd-passing=0
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Server said: You said 'Hey, it's 1273093337 already!'. KTHXBYE!
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TCP transport on two different hosts without authentication:
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Server:
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host1 $ ./gdbus-example-peer --server --address tcp:host=0.0.0.0 --allow-anonymous
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Server is listening at: tcp:host=0.0.0.0,port=59556
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Client connected.
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Peer credentials: (no credentials received)
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Negotiated capabilities: unix-fd-passing=0
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Client said: Hey, it's 1273093652 already!
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Client:
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host2 $ ./gdbus-example-peer -a tcp:host=host1,port=59556
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Connected.
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Negotiated capabilities: unix-fd-passing=0
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Server said: You said 'Hey, it's 1273093652 already!'. KTHXBYE!
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*/
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#include <gio/gio.h>
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#include <stdlib.h>
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/* ---------------------------------------------------------------------------------------------------- */
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static GDBusNodeInfo *introspection_data = NULL;
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/* Introspection data for the service we are exporting */
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static const gchar introspection_xml[] =
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"<node>"
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" <interface name='org.gtk.GDBus.TestPeerInterface'>"
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" <method name='HelloWorld'>"
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" <arg type='s' name='greeting' direction='in'/>"
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" <arg type='s' name='response' direction='out'/>"
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" </method>"
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" </interface>"
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"</node>";
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/* ---------------------------------------------------------------------------------------------------- */
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static void
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handle_method_call (GDBusConnection *connection,
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const gchar *sender,
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const gchar *object_path,
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const gchar *interface_name,
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const gchar *method_name,
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GVariant *parameters,
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GDBusMethodInvocation *invocation,
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gpointer user_data)
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{
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if (g_strcmp0 (method_name, "HelloWorld") == 0)
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{
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const gchar *greeting;
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gchar *response;
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g_variant_get (parameters, "(s)", &greeting);
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response = g_strdup_printf ("You said '%s'. KTHXBYE!", greeting);
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g_dbus_method_invocation_return_value (invocation,
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g_variant_new ("(s)", response));
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g_free (response);
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g_print ("Client said: %s\n", greeting);
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}
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}
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static const GDBusInterfaceVTable interface_vtable =
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{
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handle_method_call,
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NULL,
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NULL,
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};
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/* ---------------------------------------------------------------------------------------------------- */
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static void
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on_new_connection (GDBusServer *server,
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GDBusConnection *connection,
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gpointer user_data)
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{
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guint registration_id;
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GCredentials *credentials;
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gchar *s;
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credentials = g_dbus_connection_get_peer_credentials (connection);
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if (credentials == NULL)
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s = g_strdup ("(no credentials received)");
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else
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s = g_credentials_to_string (credentials);
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g_print ("Client connected.\n"
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"Peer credentials: %s\n"
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"Negotiated capabilities: unix-fd-passing=%d\n",
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s,
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g_dbus_connection_get_capabilities (connection) & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING);
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g_object_ref (connection);
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registration_id = g_dbus_connection_register_object (connection,
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"/org/gtk/GDBus/TestObject",
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"org.gtk.GDBus.TestPeerInterface",
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introspection_data->interfaces[0],
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&interface_vtable,
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NULL, /* user_data */
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NULL, /* user_data_free_func */
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NULL); /* GError** */
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g_assert (registration_id > 0);
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}
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/* ---------------------------------------------------------------------------------------------------- */
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int
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main (int argc, char *argv[])
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{
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gint ret;
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gboolean opt_server;
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gchar *opt_address;
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GOptionContext *opt_context;
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gboolean opt_allow_anonymous;
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GError *error;
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GOptionEntry opt_entries[] =
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{
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{ "server", 's', 0, G_OPTION_ARG_NONE, &opt_server, "Start a server instead of a client", NULL },
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{ "address", 'a', 0, G_OPTION_ARG_STRING, &opt_address, "D-Bus address to use", NULL },
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{ "allow-anonymous", 'n', 0, G_OPTION_ARG_NONE, &opt_allow_anonymous, "Allow anonymous authentication", NULL },
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{ NULL}
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};
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ret = 1;
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g_type_init ();
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opt_address = NULL;
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opt_server = FALSE;
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opt_allow_anonymous = FALSE;
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opt_context = g_option_context_new ("peer-to-peer example");
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error = NULL;
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g_option_context_add_main_entries (opt_context, opt_entries, NULL);
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if (!g_option_context_parse (opt_context, &argc, &argv, &error))
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{
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g_printerr ("Error parsing options: %s\n", error->message);
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g_error_free (error);
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goto out;
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}
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if (opt_address == NULL)
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{
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g_printerr ("Incorrect usage, try --help.\n");
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goto out;
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}
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if (!opt_server && opt_allow_anonymous)
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{
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g_printerr ("The --allow-anonymous option only makes sense when used with --server.\n");
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goto out;
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}
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/* We are lazy here - we don't want to manually provide
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* the introspection data structures - so we just build
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* them from XML.
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*/
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introspection_data = g_dbus_node_info_new_for_xml (introspection_xml, NULL);
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g_assert (introspection_data != NULL);
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if (opt_server)
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{
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GDBusServer *server;
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gchar *guid;
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GMainLoop *loop;
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GDBusServerFlags server_flags;
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guid = g_dbus_generate_guid ();
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server_flags = G_DBUS_SERVER_FLAGS_NONE;
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if (opt_allow_anonymous)
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server_flags |= G_DBUS_SERVER_FLAGS_AUTHENTICATION_ALLOW_ANONYMOUS;
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error = NULL;
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server = g_dbus_server_new_sync (opt_address,
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server_flags,
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guid,
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NULL, /* GDBusAuthObserver */
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NULL, /* GCancellable */
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&error);
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g_dbus_server_start (server);
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g_free (guid);
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if (server == NULL)
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{
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g_printerr ("Error creating server at address %s: %s\n", opt_address, error->message);
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g_error_free (error);
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goto out;
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}
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g_print ("Server is listening at: %s\n", g_dbus_server_get_client_address (server));
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g_signal_connect (server,
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"new-connection",
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G_CALLBACK (on_new_connection),
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NULL);
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loop = g_main_loop_new (NULL, FALSE);
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g_main_loop_run (loop);
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g_object_unref (server);
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g_main_loop_unref (loop);
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}
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else
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{
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GDBusConnection *connection;
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const gchar *greeting_response;
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GVariant *value;
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gchar *greeting;
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error = NULL;
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connection = g_dbus_connection_new_for_address_sync (opt_address,
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G_DBUS_CONNECTION_FLAGS_AUTHENTICATION_CLIENT,
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NULL, /* GCancellable */
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&error);
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if (connection == NULL)
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{
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g_printerr ("Error connecting to D-Bus address %s: %s\n", opt_address, error->message);
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g_error_free (error);
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goto out;
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}
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g_print ("Connected.\n"
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"Negotiated capabilities: unix-fd-passing=%d\n",
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g_dbus_connection_get_capabilities (connection) & G_DBUS_CAPABILITY_FLAGS_UNIX_FD_PASSING);
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greeting = g_strdup_printf ("Hey, it's %" G_GUINT64_FORMAT " already!", (guint64) time (NULL));
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value = g_dbus_connection_invoke_method_sync (connection,
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NULL, /* bus_name */
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"/org/gtk/GDBus/TestObject",
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"org.gtk.GDBus.TestPeerInterface",
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"HelloWorld",
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g_variant_new ("(s)", greeting),
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G_DBUS_INVOKE_METHOD_FLAGS_NONE,
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-1,
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NULL,
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&error);
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if (value == NULL)
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{
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g_printerr ("Error invoking HelloWorld(): %s\n", error->message);
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g_error_free (error);
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goto out;
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}
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g_variant_get (value, "(s)", &greeting_response);
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g_print ("Server said: %s\n", greeting_response);
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g_variant_unref (value);
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g_object_unref (connection);
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}
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g_dbus_node_info_unref (introspection_data);
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ret = 0;
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out:
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return ret;
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}
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