Gio.DBusServer¶

Subclasses:: None

Methods¶

Inherited:: GObject.Object (37), Gio.Initable (2)
Structs:: GObject.ObjectClass (5)

class	`new_sync` (address, flags, guid, observer, cancellable)
	`get_client_address` ()
	`get_flags` ()
	`get_guid` ()
	`is_active` ()
	`start` ()
	`stop` ()

Virtual Methods¶

Inherited:: GObject.Object (7), Gio.Initable (1)

Properties¶

Name	Type	Flags
`active`	`bool`	r
`address`	`str`	r/w/co
`authentication-observer`	`Gio.DBusAuthObserver`	r/w/co
`client-address`	`str`	r
`flags`	`Gio.DBusServerFlags`	r/w/co
`guid`	`str`	r/w/co

Signals¶

Inherited:: GObject.Object (1)

Name	Short Description
`new-connection`	Emitted when a new authenticated connection has been made.

Fields¶

Inherited:: GObject.Object (1)

Class Details¶

class Gio.DBusServer(**kwargs)¶

Bases:: GObject.Object, Gio.Initable
Abstract:: No

GDBusServer is a helper for listening to and accepting D-Bus connections. This can be used to create a new D-Bus server, allowing two peers to use the D-Bus protocol for their own specialized communication. A server instance provided in this way will not perform message routing or implement the org.freedesktop.DBus interface.

To just export an object on a well-known name on a message bus, such as the session or system bus, you should instead use [func`Gio`.bus_own_name].

An example of peer-to-peer communication with GDBus can be found in gdbus-example-peer.c.

Note that a minimal GDBusServer will accept connections from any peer. In many use-cases it will be necessary to add a [class`Gio`.DBusAuthObserver] that only accepts connections that have successfully authenticated as the same user that is running the GDBusServer. Since GLib 2.68 this can be achieved more simply by passing the G_DBUS_SERVER_FLAGS_AUTHENTICATION_REQUIRE_SAME_USER flag to the server.

New in version 2.26.

classmethod new_sync(address, flags, guid, observer, cancellable)[source]¶

Parameters:

address (str) – A D-Bus address.
flags (Gio.DBusServerFlags) – Flags from the Gio.DBusServerFlags enumeration.
guid (str) – A D-Bus GUID.
observer (Gio.DBusAuthObserver or None) – A Gio.DBusAuthObserver or None.
cancellable (Gio.Cancellable or None) – A Gio.Cancellable or None.

Raises:

GLib.Error

Returns:

A Gio.DBusServer or None if error is set. Free with GObject.Object.unref().

Return type:

Gio.DBusServer

Creates a new D-Bus server that listens on the first address in address that works.

Once constructed, you can use Gio.DBusServer.get_client_address() to get a D-Bus address string that clients can use to connect.

To have control over the available authentication mechanisms and the users that are authorized to connect, it is strongly recommended to provide a non-None Gio.DBusAuthObserver.

Connect to the Gio.DBusServer ::new-connection signal to handle incoming connections.

The returned Gio.DBusServer isn’t active - you have to start it with Gio.DBusServer.start().

Gio.DBusServer is used in this ‘example [gdbus-peer-to-peer]’.

This is a synchronous failable constructor. There is currently no asynchronous version.

New in version 2.26.

get_client_address()[source]¶

Returns:: A D-Bus address string. Do not free, the string is owned by self.
Return type:: str

Gets a D-Bus address string that can be used by clients to connect to self.

This is valid and non-empty if initializing the Gio.DBusServer succeeded.

New in version 2.26.

get_flags()[source]¶

Returns:: A set of flags from the Gio.DBusServerFlags enumeration.
Return type:: Gio.DBusServerFlags

Gets the flags for self.

New in version 2.26.

get_guid()[source]¶

Returns:: A D-Bus GUID. Do not free this string, it is owned by self.
Return type:: str

Gets the GUID for self, as provided to Gio.DBusServer.new_sync().

New in version 2.26.

is_active()[source]¶

Returns:: True if server is active, False otherwise.
Return type:: bool

Gets whether self is active.

New in version 2.26.

start()[source]¶: Starts self.

New in version 2.26.

stop()[source]¶: Stops self.

New in version 2.26.

Signal Details¶

Gio.DBusServer.signals.new_connection(d_bus_server, connection)¶

Signal Name:

new-connection

Flags:

RUN_LAST

Parameters:

d_bus_server (Gio.DBusServer) – The object which received the signal
connection (Gio.DBusConnection) – A Gio.DBusConnection for the new connection.

Returns:

True to claim connection, False to let other handlers run.

Return type:

bool

Emitted when a new authenticated connection has been made. Use Gio.DBusConnection.get_peer_credentials() to figure out what identity (if any), was authenticated.

If you want to accept the connection, take a reference to the connection object and return True. When you are done with the connection call Gio.DBusConnection.close() and give up your reference. Note that the other peer may disconnect at any time - a typical thing to do when accepting a connection is to listen to the Gio.DBusConnection ::closed signal.

If Gio.DBusServer :flags contains Gio.DBusServerFlags.RUN_IN_THREAD then the signal is emitted in a new thread dedicated to the connection. Otherwise the signal is emitted in the thread-default main context of the thread that server was constructed in.

You are guaranteed that signal handlers for this signal runs before incoming messages on connection are processed. This means that it’s suitable to call Gio.DBusConnection.register_object() or similar from the signal handler.

New in version 2.26.

Property Details¶

Gio.DBusServer.props.active¶

Name:: active
Type:: bool
Default Value:: False
Flags:: READABLE

Whether the server is currently active.

New in version 2.26.

Gio.DBusServer.props.address¶

Name:: address
Type:: str
Default Value:: None
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

The D-Bus address to listen on.

New in version 2.26.

Gio.DBusServer.props.authentication_observer¶

Name:: authentication-observer
Type:: Gio.DBusAuthObserver
Default Value:: None
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

A Gio.DBusAuthObserver object to assist in the authentication process or None.

New in version 2.26.

Gio.DBusServer.props.client_address¶

Name:: client-address
Type:: str
Default Value:: None
Flags:: READABLE

The D-Bus address that clients can use.

New in version 2.26.

Gio.DBusServer.props.flags¶

Name:: flags
Type:: Gio.DBusServerFlags
Default Value:: Gio.DBusServerFlags.NONE
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

Flags from the Gio.DBusServerFlags enumeration.

New in version 2.26.

Gio.DBusServer.props.guid¶

Name:: guid
Type:: str
Default Value:: None
Flags:: READABLE, WRITABLE, CONSTRUCT_ONLY

The GUID of the server.

See Gio.DBusConnection :guid for more details.

New in version 2.26.