glibmm  2.42.0
Public Member Functions | Static Public Member Functions | Protected Member Functions | Related Functions | List of all members
Gio::TlsConnection Class Reference

TlsConnection - TLS connection type. More...

#include <giomm/tlsconnection.h>

Inheritance diagram for Gio::TlsConnection:
Inheritance graph
[legend]

Public Member Functions

virtual ~TlsConnection ()
 
GTlsConnection* gobj ()
 Provides access to the underlying C GObject. More...
 
const GTlsConnection* gobj () const
 Provides access to the underlying C GObject. More...
 
GTlsConnection* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
void set_certificate (const Glib::RefPtr< TlsCertificate >& certificate)
 This sets the certificate that conn will present to its peer during the TLS handshake. More...
 
Glib::RefPtr< TlsCertificateget_certificate ()
 Gets conn's certificate, as set by g_tls_connection_set_certificate(). More...
 
Glib::RefPtr< const
TlsCertificate
get_certificate () const
 Gets conn's certificate, as set by g_tls_connection_set_certificate(). More...
 
Glib::RefPtr< TlsCertificateget_peer_certificate ()
 Gets conn's peer's certificate after the handshake has completed. More...
 
Glib::RefPtr< const
TlsCertificate
get_peer_certificate () const
 Gets conn's peer's certificate after the handshake has completed. More...
 
TlsCertificateFlags get_peer_certificate_errors () const
 Gets the errors associated with validating conn's peer's certificate, after the handshake has completed. More...
 
void set_require_close_notify (bool require_close_notify=true)
 Sets whether or not conn expects a proper TLS close notification before the connection is closed. More...
 
bool get_require_close_notify () const
 Tests whether or not conn expects a proper TLS close notification when the connection is closed. More...
 
void set_rehandshake_mode (TlsRehandshakeMode mode)
 Sets how conn behaves with respect to rehandshaking requests. More...
 
TlsRehandshakeMode get_rehandshake_mode () const
 Gets conn rehandshaking mode. More...
 
void set_use_system_certdb (bool use_system_certdb=true)
 Sets whether conn uses the system certificate database to verify peer certificates. More...
 
bool get_use_system_certdb () const
 Gets whether conn uses the system certificate database to verify peer certificates. More...
 
Glib::RefPtr< TlsDatabaseget_database ()
 Gets the certificate database that conn uses to verify peer certificates. More...
 
Glib::RefPtr< const TlsDatabaseget_database () const
 Gets the certificate database that conn uses to verify peer certificates. More...
 
void set_database (const Glib::RefPtr< TlsDatabase >& database)
 Sets the certificate database that is used to verify peer certificates. More...
 
Glib::RefPtr< TlsInteractionget_interaction ()
 Get the object that will be used to interact with the user. More...
 
Glib::RefPtr< const
TlsInteraction
get_interaction () const
 Get the object that will be used to interact with the user. More...
 
void set_interaction (const Glib::RefPtr< TlsInteraction >& interaction)
 Set the object that will be used to interact with the user. More...
 
bool handshake (const Glib::RefPtr< Cancellable >& cancellable)
 Attempts a TLS handshake on conn. More...
 
bool handshake ()
 A handshake() convenience overload. More...
 
void handshake_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
 Asynchronously performs a TLS handshake on conn. More...
 
void handshake_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
 A handshake_async() convenience overload. More...
 
bool handshake_finish (const Glib::RefPtr< AsyncResult >& result)
 Finish an asynchronous TLS handshake operation. More...
 
bool emit_accept_certificate (const Glib::RefPtr< const TlsCertificate >& peer_cert, TlsCertificateFlags errors)
 Used by TlsConnection implementations to emit the TlsConnection::signal_accept_certificate() signal. More...
 
Glib::PropertyProxy_ReadOnly
< Glib::RefPtr< IOStream > > 
property_base_io_stream () const
 The GIOStream that the connection wraps. More...
 
Glib::PropertyProxy
< Glib::RefPtr< TlsCertificate > > 
property_certificate ()
 The connection's certificate. More...
 
Glib::PropertyProxy_ReadOnly
< Glib::RefPtr< TlsCertificate > > 
property_certificate () const
 The connection's certificate. More...
 
Glib::PropertyProxy
< Glib::RefPtr< TlsDatabase > > 
property_database ()
 Certificate database to use for looking up or verifying certificates. More...
 
Glib::PropertyProxy_ReadOnly
< Glib::RefPtr< TlsDatabase > > 
property_database () const
 Certificate database to use for looking up or verifying certificates. More...
 
Glib::PropertyProxy
< Glib::RefPtr< TlsInteraction > > 
property_interaction ()
 Optional object for user interaction. More...
 
Glib::PropertyProxy_ReadOnly
< Glib::RefPtr< TlsInteraction > > 
property_interaction () const
 Optional object for user interaction. More...
 
Glib::PropertyProxy_ReadOnly
< Glib::RefPtr< TlsCertificate > > 
property_peer_certificate () const
 The connection's peer's certificate. More...
 
Glib::PropertyProxy_ReadOnly
< TlsCertificateFlags
property_peer_certificate_errors () const
 Errors found with the peer's certificate. More...
 
Glib::PropertyProxy
< TlsRehandshakeMode
property_rehandshake_mode ()
 When to allow rehandshaking. More...
 
Glib::PropertyProxy_ReadOnly
< TlsRehandshakeMode
property_rehandshake_mode () const
 When to allow rehandshaking. More...
 
Glib::PropertyProxy< bool > property_require_close_notify ()
 Whether to require proper TLS close notification. More...
 
Glib::PropertyProxy_ReadOnly
< bool > 
property_require_close_notify () const
 Whether to require proper TLS close notification. More...
 
Glib::PropertyProxy< bool > property_use_system_certdb ()
 Whether to verify peer certificates against the system certificate database. More...
 
Glib::PropertyProxy_ReadOnly
< bool > 
property_use_system_certdb () const
 Whether to verify peer certificates against the system certificate database. More...
 
Glib::SignalProxy2< bool,
const Glib::RefPtr< const
TlsCertificate >
&, TlsCertificateFlags
signal_accept_certificate ()
 
virtual bool handshake_vfunc (const Glib::RefPtr< Cancellable >& cancellable)
 
virtual void handshake_async_vfunc (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority)
 
virtual bool handshake_finish_vfunc (const Glib::RefPtr< AsyncResult >& result)
 
- Public Member Functions inherited from Gio::IOStream
virtual ~IOStream ()
 
GIOStream* gobj ()
 Provides access to the underlying C GObject. More...
 
const GIOStream* gobj () const
 Provides access to the underlying C GObject. More...
 
GIOStream* gobj_copy ()
 Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs. More...
 
void splice_async (const Glib::RefPtr< IOStream >& stream2, const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, IOStreamSpliceFlags flags=Gio::IO_STREAM_SPLICE_NONE, int io_priority=Glib::PRIORITY_DEFAULT)
 Asyncronously splice the output stream to the input stream of stream2, and splice the output stream of stream2 to the input stream of this stream. More...
 
void splice_async (const Glib::RefPtr< IOStream >& stream2, const SlotAsyncReady& slot, IOStreamSpliceFlags flags=Gio::IO_STREAM_SPLICE_NONE, int io_priority=Glib::PRIORITY_DEFAULT)
 A non-cancellable version of splice_async(). More...
 
Glib::RefPtr< InputStreamget_input_stream ()
 Gets the input stream for this object. More...
 
Glib::RefPtr< OutputStreamget_output_stream ()
 Gets the output stream for this object. More...
 
bool close (const Glib::RefPtr< Cancellable >& cancellable)
 Closes the stream, releasing resources related to it. More...
 
bool close ()
 A close() convenience overload. More...
 
void close_async (const SlotAsyncReady& slot, const Glib::RefPtr< Cancellable >& cancellable, int io_priority=Glib::PRIORITY_DEFAULT)
 
void close_async (const SlotAsyncReady& slot, int io_priority=Glib::PRIORITY_DEFAULT)
 
bool close_finish (const Glib::RefPtr< AsyncResult >& result)
 Closes a stream. More...
 
bool is_closed () const
 Checks if a stream is closed. More...
 
bool has_pending () const
 Checks if a stream has pending actions. More...
 
bool set_pending ()
 Sets stream to have actions pending. More...
 
void clear_pending ()
 Clears the pending flag on stream. More...
 
- Public Member Functions inherited from Glib::Object
void* get_data (const QueryQuark& key)
 
void set_data (const Quark& key, void* data)
 
void set_data (const Quark& key, void* data, DestroyNotify notify)
 
void remove_data (const QueryQuark& quark)
 
void* steal_data (const QueryQuark& quark)
 
- Public Member Functions inherited from Glib::ObjectBase
void set_property_value (const Glib::ustring& property_name, const Glib::ValueBase& value)
 You probably want to use a specific property_*() accessor method instead. More...
 
void get_property_value (const Glib::ustring& property_name, Glib::ValueBase& value) const
 You probably want to use a specific property_*() accessor method instead. More...
 
template<class PropertyType >
void set_property (const Glib::ustring& property_name, const PropertyType& value)
 You probably want to use a specific property_*() accessor method instead. More...
 
template<class PropertyType >
void get_property (const Glib::ustring& property_name, PropertyType& value) const
 You probably want to use a specific property_*() accessor method instead. More...
 
void connect_property_changed (const Glib::ustring& property_name, const sigc::slot< void >& slot)
 You can use the signal_changed() signal of the property proxy instead, but this is necessary when using the reduced API. More...
 
sigc::connection connect_property_changed_with_return (const Glib::ustring& property_name, const sigc::slot< void >& slot)
 You can use the signal_changed() signal of the property proxy instead, but this is necessary when using the reduced API. More...
 
void freeze_notify ()
 Increases the freeze count on object. More...
 
void thaw_notify ()
 Reverts the effect of a previous call to freeze_notify(). More...
 
virtual void reference () const
 Increment the reference count for this object. More...
 
virtual void unreference () const
 Decrement the reference count for this object. More...
 
GObject* gobj ()
 Provides access to the underlying C GObject. More...
 
const GObject* gobj () const
 Provides access to the underlying C GObject. More...
 
GObject* gobj_copy () const
 Give a ref-ed copy to someone. Use for direct struct access. More...
 

Static Public Member Functions

static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...
 
- Static Public Member Functions inherited from Gio::IOStream
static GType get_type ()
 Get the GType for this class, for use with the underlying GObject type system. More...
 
static bool splice_finish (const Glib::RefPtr< AsyncResult >& result)
 Finishes an asynchronous io stream splice operation. More...
 

Protected Member Functions

 TlsConnection ()
 
virtual bool on_accept_certificate (const Glib::RefPtr< const TlsCertificate >& peer_cert, TlsCertificateFlags errors)
 This is a default handler for the signal signal_accept_certificate(). More...
 
- Protected Member Functions inherited from Glib::Object
 Object ()
 
 Object (const Glib::ConstructParams& construct_params)
 
 Object (GObject* castitem)
 
virtual ~Object ()
 
- Protected Member Functions inherited from Glib::ObjectBase
 ObjectBase ()
 This default constructor is called implicitly from the constructor of user-derived classes, even if, for instance, Gtk::Button calls a different ObjectBase constructor. More...
 
 ObjectBase (const char* custom_type_name)
 A derived constructor always overrides this choice. More...
 
 ObjectBase (const std::type_info& custom_type_info)
 This constructor is a special feature to allow creation of derived types on the fly, without having to use g_object_new() manually. More...
 
virtual ~ObjectBase ()=0
 
void initialize (GObject* castitem)
 

Related Functions

(Note that these are not member functions.)

Glib::RefPtr< Gio::TlsConnectionwrap (GTlsConnection* object, bool take_copy=false)
 A Glib::wrap() method for this object. More...
 

Additional Inherited Members

- Public Types inherited from Glib::Object
typedef void(* DestroyNotify )(gpointer data)
 

Detailed Description

TlsConnection - TLS connection type.

TlsConnection is the base TLS connection class type, which wraps an IOStream and provides TLS encryption on top of it. Its subclasses, TlsClientConnection and TlsServerConnection, implement client-side and server-side TLS, respectively.

Since glibmm 2.36:

Constructor & Destructor Documentation

virtual Gio::TlsConnection::~TlsConnection ( )
virtual
Gio::TlsConnection::TlsConnection ( )
protected

Member Function Documentation

bool Gio::TlsConnection::emit_accept_certificate ( const Glib::RefPtr< const TlsCertificate >&  peer_cert,
TlsCertificateFlags  errors 
)

Used by TlsConnection implementations to emit the TlsConnection::signal_accept_certificate() signal.

Since glibmm 2.28:
Parameters
peer_certThe peer's TlsCertificate.
errorsThe problems with peer_cert.
Returns
true if one of the signal handlers has returned true to accept peer_cert.
Glib::RefPtr<TlsCertificate> Gio::TlsConnection::get_certificate ( )

Gets conn's certificate, as set by g_tls_connection_set_certificate().

Since glibmm 2.28:
Returns
conn's certificate, or 0.
Glib::RefPtr<const TlsCertificate> Gio::TlsConnection::get_certificate ( ) const

Gets conn's certificate, as set by g_tls_connection_set_certificate().

Since glibmm 2.28:
Returns
conn's certificate, or 0.
Glib::RefPtr<TlsDatabase> Gio::TlsConnection::get_database ( )

Gets the certificate database that conn uses to verify peer certificates.

See g_tls_connection_set_database().

Since glibmm 2.30:
Returns
The certificate database that conn uses or 0.
Glib::RefPtr<const TlsDatabase> Gio::TlsConnection::get_database ( ) const

Gets the certificate database that conn uses to verify peer certificates.

See g_tls_connection_set_database().

Since glibmm 2.30:
Returns
The certificate database that conn uses or 0.
Glib::RefPtr<TlsInteraction> Gio::TlsConnection::get_interaction ( )

Get the object that will be used to interact with the user.

It will be used for things like prompting the user for passwords. If 0 is returned, then no user interaction will occur for this connection.

Since glibmm 2.30:
Returns
The interaction object.
Glib::RefPtr<const TlsInteraction> Gio::TlsConnection::get_interaction ( ) const

Get the object that will be used to interact with the user.

It will be used for things like prompting the user for passwords. If 0 is returned, then no user interaction will occur for this connection.

Since glibmm 2.30:
Returns
The interaction object.
Glib::RefPtr<TlsCertificate> Gio::TlsConnection::get_peer_certificate ( )

Gets conn's peer's certificate after the handshake has completed.

(It is not set during the emission of TlsConnection::signal_accept_certificate().)

Since glibmm 2.28:
Returns
conn's peer's certificate, or 0.
Glib::RefPtr<const TlsCertificate> Gio::TlsConnection::get_peer_certificate ( ) const

Gets conn's peer's certificate after the handshake has completed.

(It is not set during the emission of TlsConnection::signal_accept_certificate().)

Since glibmm 2.28:
Returns
conn's peer's certificate, or 0.
TlsCertificateFlags Gio::TlsConnection::get_peer_certificate_errors ( ) const

Gets the errors associated with validating conn's peer's certificate, after the handshake has completed.

(It is not set during the emission of TlsConnection::signal_accept_certificate().)

Since glibmm 2.28:
Returns
conn's peer's certificate errors.
TlsRehandshakeMode Gio::TlsConnection::get_rehandshake_mode ( ) const

Gets conn rehandshaking mode.

See g_tls_connection_set_rehandshake_mode() for details.

Since glibmm 2.28:
Returns
conn's rehandshaking mode.
bool Gio::TlsConnection::get_require_close_notify ( ) const

Tests whether or not conn expects a proper TLS close notification when the connection is closed.

See g_tls_connection_set_require_close_notify() for details.

Since glibmm 2.28:
Returns
true if conn requires a proper TLS close notification.
static GType Gio::TlsConnection::get_type ( )
static

Get the GType for this class, for use with the underlying GObject type system.

bool Gio::TlsConnection::get_use_system_certdb ( ) const

Gets whether conn uses the system certificate database to verify peer certificates.

See g_tls_connection_set_use_system_certdb().

Deprecated: 2.30: Use g_tls_connection_get_database() instead

Deprecated:
Use get_database() instead.
Returns
Whether conn uses the system certificate database.
GTlsConnection* Gio::TlsConnection::gobj ( )
inline

Provides access to the underlying C GObject.

const GTlsConnection* Gio::TlsConnection::gobj ( ) const
inline

Provides access to the underlying C GObject.

GTlsConnection* Gio::TlsConnection::gobj_copy ( )

Provides access to the underlying C instance. The caller is responsible for unrefing it. Use when directly setting fields in structs.

bool Gio::TlsConnection::handshake ( const Glib::RefPtr< Cancellable >&  cancellable)

Attempts a TLS handshake on conn.

On the client side, it is never necessary to call this method; although the connection needs to perform a handshake after connecting (or after sending a "STARTTLS"-type command) and may need to rehandshake later if the server requests it, TlsConnection will handle this for you automatically when you try to send or receive data on the connection. However, you can call g_tls_connection_handshake() manually if you want to know for sure whether the initial handshake succeeded or failed (as opposed to just immediately trying to write to conn's output stream, in which case if it fails, it may not be possible to tell if it failed before or after completing the handshake).

Likewise, on the server side, although a handshake is necessary at the beginning of the communication, you do not need to call this function explicitly unless you want clearer error reporting. However, you may call g_tls_connection_handshake() later on to renegotiate parameters (encryption methods, etc) with the client.

TlsConnection::accept_certificate may be emitted during the handshake.

Since glibmm 2.28:
Parameters
cancellableA Cancellable, or 0.
Returns
Success or failure.
bool Gio::TlsConnection::handshake ( )

A handshake() convenience overload.

void Gio::TlsConnection::handshake_async ( const SlotAsyncReady slot,
const Glib::RefPtr< Cancellable >&  cancellable,
int  io_priority = Glib::PRIORITY_DEFAULT 
)

Asynchronously performs a TLS handshake on conn.

See g_tls_connection_handshake() for more information.

Since glibmm 2.28:
Parameters
io_priorityThe [I/O priority][io-priority] of the request.
cancellableA Cancellable, or 0.
slotCallback to call when the handshake is complete.
void Gio::TlsConnection::handshake_async ( const SlotAsyncReady slot,
int  io_priority = Glib::PRIORITY_DEFAULT 
)

A handshake_async() convenience overload.

virtual void Gio::TlsConnection::handshake_async_vfunc ( const SlotAsyncReady slot,
const Glib::RefPtr< Cancellable >&  cancellable,
int  io_priority 
)
virtual
bool Gio::TlsConnection::handshake_finish ( const Glib::RefPtr< AsyncResult >&  result)

Finish an asynchronous TLS handshake operation.

See g_tls_connection_handshake() for more information.

Since glibmm 2.28:
Parameters
resultA AsyncResult.
Returns
true on success, false on failure, in which case error will be set.
virtual bool Gio::TlsConnection::handshake_finish_vfunc ( const Glib::RefPtr< AsyncResult >&  result)
virtual
Exceptions
Glib::Error.
virtual bool Gio::TlsConnection::handshake_vfunc ( const Glib::RefPtr< Cancellable >&  cancellable)
virtual
Exceptions
Glib::Error.
virtual bool Gio::TlsConnection::on_accept_certificate ( const Glib::RefPtr< const TlsCertificate >&  peer_cert,
TlsCertificateFlags  errors 
)
protectedvirtual

This is a default handler for the signal signal_accept_certificate().

Glib::PropertyProxy_ReadOnly< Glib::RefPtr<IOStream> > Gio::TlsConnection::property_base_io_stream ( ) const

The GIOStream that the connection wraps.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::RefPtr<TlsCertificate> > Gio::TlsConnection::property_certificate ( )

The connection's certificate.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::RefPtr<TlsCertificate> > Gio::TlsConnection::property_certificate ( ) const

The connection's certificate.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::RefPtr<TlsDatabase> > Gio::TlsConnection::property_database ( )

Certificate database to use for looking up or verifying certificates.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::RefPtr<TlsDatabase> > Gio::TlsConnection::property_database ( ) const

Certificate database to use for looking up or verifying certificates.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< Glib::RefPtr<TlsInteraction> > Gio::TlsConnection::property_interaction ( )

Optional object for user interaction.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::RefPtr<TlsInteraction> > Gio::TlsConnection::property_interaction ( ) const

Optional object for user interaction.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< Glib::RefPtr<TlsCertificate> > Gio::TlsConnection::property_peer_certificate ( ) const

The connection's peer's certificate.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< TlsCertificateFlags > Gio::TlsConnection::property_peer_certificate_errors ( ) const

Errors found with the peer's certificate.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< TlsRehandshakeMode > Gio::TlsConnection::property_rehandshake_mode ( )

When to allow rehandshaking.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< TlsRehandshakeMode > Gio::TlsConnection::property_rehandshake_mode ( ) const

When to allow rehandshaking.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gio::TlsConnection::property_require_close_notify ( )

Whether to require proper TLS close notification.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gio::TlsConnection::property_require_close_notify ( ) const

Whether to require proper TLS close notification.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy< bool > Gio::TlsConnection::property_use_system_certdb ( )

Whether to verify peer certificates against the system certificate database.

Deprecated:
Use property_database() instead.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy that allows you to get or set the value of the property, or receive notification when the value of the property changes.
Glib::PropertyProxy_ReadOnly< bool > Gio::TlsConnection::property_use_system_certdb ( ) const

Whether to verify peer certificates against the system certificate database.

Deprecated:
Use property_database() instead.

You rarely need to use properties because there are get_ and set_ methods for almost all of them.

Returns
A PropertyProxy_ReadOnly that allows you to get the value of the property, or receive notification when the value of the property changes.
void Gio::TlsConnection::set_certificate ( const Glib::RefPtr< TlsCertificate >&  certificate)

This sets the certificate that conn will present to its peer during the TLS handshake.

For a TlsServerConnection, it is mandatory to set this, and that will normally be done at construct time.

For a TlsClientConnection, this is optional. If a handshake fails with TLS_ERROR_CERTIFICATE_REQUIRED, that means that the server requires a certificate, and if you try connecting again, you should call this method first. You can call g_tls_client_connection_get_accepted_cas() on the failed connection to get a list of Certificate Authorities that the server will accept certificates from.

(It is also possible that a server will allow the connection with or without a certificate; in that case, if you don't provide a certificate, you can tell that the server requested one by the fact that g_tls_client_connection_get_accepted_cas() will return non-0.)

Since glibmm 2.28:
Parameters
certificateThe certificate to use for conn.
void Gio::TlsConnection::set_database ( const Glib::RefPtr< TlsDatabase >&  database)

Sets the certificate database that is used to verify peer certificates.

This is set to the default database by default. See g_tls_backend_get_default_database(). If set to 0, then peer certificate validation will always set the TLS_CERTIFICATE_UNKNOWN_CA error (meaning TlsConnection::signal_accept_certificate() will always be emitted on client-side connections, unless that bit is not set in TlsClientConnection::property_validation_flags()).

Since glibmm 2.30:
Parameters
databaseA TlsDatabase.
void Gio::TlsConnection::set_interaction ( const Glib::RefPtr< TlsInteraction >&  interaction)

Set the object that will be used to interact with the user.

It will be used for things like prompting the user for passwords.

The interaction argument will normally be a derived subclass of TlsInteraction. 0 can also be provided if no user interaction should occur for this connection.

Since glibmm 2.30:
Parameters
interactionAn interaction object, or 0.
void Gio::TlsConnection::set_rehandshake_mode ( TlsRehandshakeMode  mode)

Sets how conn behaves with respect to rehandshaking requests.

TLS_REHANDSHAKE_NEVER means that it will never agree to rehandshake after the initial handshake is complete. (For a client, this means it will refuse rehandshake requests from the server, and for a server, this means it will close the connection with an error if the client attempts to rehandshake.)

TLS_REHANDSHAKE_SAFELY means that the connection will allow a rehandshake only if the other end of the connection supports the TLS renegotiation_info extension. This is the default behavior, but means that rehandshaking will not work against older implementations that do not support that extension.

TLS_REHANDSHAKE_UNSAFELY means that the connection will allow rehandshaking even without the renegotiation_info extension. On the server side in particular, this is not recommended, since it leaves the server open to certain attacks. However, this mode is necessary if you need to allow renegotiation with older client software.

Since glibmm 2.28:
Parameters
modeThe rehandshaking mode.
void Gio::TlsConnection::set_require_close_notify ( bool  require_close_notify = true)

Sets whether or not conn expects a proper TLS close notification before the connection is closed.

If this is true (the default), then conn will expect to receive a TLS close notification from its peer before the connection is closed, and will return a TLS_ERROR_EOF error if the connection is closed without proper notification (since this may indicate a network error, or man-in-the-middle attack).

In some protocols, the application will know whether or not the connection was closed cleanly based on application-level data (because the application-level data includes a length field, or is somehow self-delimiting); in this case, the close notify is redundant and sometimes omitted. (TLS 1.1 explicitly allows this; in TLS 1.0 it is technically an error, but often done anyway.) You can use g_tls_connection_set_require_close_notify() to tell conn to allow an "unannounced" connection close, in which case the close will show up as a 0-length read, as in a non-TLS SocketConnection, and it is up to the application to check that the data has been fully received.

Note that this only affects the behavior when the peer closes the connection; when the application calls g_io_stream_close() itself on conn, this will send a close notification regardless of the setting of this property. If you explicitly want to do an unclean close, you can close conn's TlsConnection::property_base_io_stream() rather than closing conn itself.

Since glibmm 2.28:
Parameters
require_close_notifyWhether or not to require close notification.
void Gio::TlsConnection::set_use_system_certdb ( bool  use_system_certdb = true)

Sets whether conn uses the system certificate database to verify peer certificates.

This is true by default. If set to false, then peer certificate validation will always set the TLS_CERTIFICATE_UNKNOWN_CA error (meaning TlsConnection::signal_accept_certificate() will always be emitted on client-side connections, unless that bit is not set in TlsClientConnection::property_validation_flags()).

Deprecated: 2.30: Use g_tls_connection_set_database() instead

Deprecated:
Use set_database() instead.
Parameters
use_system_certdbWhether to use the system certificate database.
Glib::SignalProxy2< bool,const Glib::RefPtr<const TlsCertificate>&,TlsCertificateFlags > Gio::TlsConnection::signal_accept_certificate ( )
Slot Prototype:
bool on_my_accept_certificate(const Glib::RefPtr<const TlsCertificate>& peer_cert, TlsCertificateFlags errors)

Emitted during the TLS handshake after the peer certificate has been received. You can examine peer_cert's certification path by calling g_tls_certificate_get_issuer() on it.

For a client-side connection, peer_cert is the server's certificate, and the signal will only be emitted if the certificate was not acceptable according to conn's TlsClientConnection::property_validation()_flags. If you would like the certificate to be accepted despite errors, return true from the signal handler. Otherwise, if no handler accepts the certificate, the handshake will fail with TLS_ERROR_BAD_CERTIFICATE.

For a server-side connection, peer_cert is the certificate presented by the client, if this was requested via the server's TlsServerConnection::property_authentication()_mode. On the server side, the signal is always emitted when the client presents a certificate, and the certificate will only be accepted if a handler returns true.

Note that if this signal is emitted as part of asynchronous I/O in the main thread, then you should not attempt to interact with the user before returning from the signal handler. If you want to let the user decide whether or not to accept the certificate, you would have to return false from the signal handler on the first attempt, and then after the connection attempt returns a TLS_ERROR_HANDSHAKE, you can interact with the user, and if the user decides to accept the certificate, remember that fact, create a new connection, and return true from the signal handler the next time.

If you are doing I/O in another thread, you do not need to worry about this, and can simply block in the signal handler until the UI thread returns an answer.

Since glibmm 2.28:
Parameters
peer_certThe peer's TlsCertificate.
errorsThe problems with peer_cert.
Returns
true to accept peer_cert (which will also immediately end the signal emission). false to allow the signal emission to continue, which will cause the handshake to fail if no one else overrides it.

Friends And Related Function Documentation

Glib::RefPtr< Gio::TlsConnection > wrap ( GTlsConnection *  object,
bool  take_copy = false 
)
related

A Glib::wrap() method for this object.

Parameters
objectThe C instance.
take_copyFalse if the result should take ownership of the C instance. True if it should take a new copy or ref.
Returns
A C++ instance that wraps this C instance.