GI.Gio.Objects.TlsConnection

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

For DTLS (Datagram TLS) support, see DtlsConnection.

Since: 2.28

Exported types

newtype TlsConnection

Memory-managed wrapper type.

Constructors

TlsConnection (ManagedPtr TlsConnection)

Instances

Eq TlsConnection

Defined in GI.Gio.Objects.TlsConnection

Methods

(==) :: TlsConnection -> TlsConnection -> Bool

(/=) :: TlsConnection -> TlsConnection -> Bool

GObject TlsConnection

Defined in GI.Gio.Objects.TlsConnection

Methods

gobjectType :: IO GType

IsGValue TlsConnection

Convert TlsConnection to and from GValue with toGValue and fromGValue.

Defined in GI.Gio.Objects.TlsConnection

Methods

toGValue :: TlsConnection -> IO GValue

fromGValue :: GValue -> IO TlsConnection

HasParentTypes TlsConnection

Defined in GI.Gio.Objects.TlsConnection

type ParentTypes TlsConnection

Defined in GI.Gio.Objects.TlsConnection

type ParentTypes TlsConnection = '[IOStream, Object]

class (GObject o, IsDescendantOf TlsConnection o) => IsTlsConnection o

Type class for types which can be safely cast to TlsConnection, for instance with toTlsConnection.

Instances

(GObject o, IsDescendantOf TlsConnection o) => IsTlsConnection o

Defined in GI.Gio.Objects.TlsConnection

toTlsConnection :: (MonadIO m, IsTlsConnection o) => o -> m TlsConnection

Cast to TlsConnection, for types for which this is known to be safe. For general casts, use castTo.

noTlsConnection :: Maybe TlsConnection

A convenience alias for Nothing :: Maybe TlsConnection.

Methods

Overloaded methods

emitAcceptCertificate

tlsConnectionEmitAcceptCertificate

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsTlsCertificate b)

=> a

conn: a TlsConnection

-> b

peerCert: the peer's TlsCertificate

-> [TlsCertificateFlags]

errors: the problems with peerCert

-> m Bool

Returns: True if one of the signal handlers has returned True to accept peerCert

Used by TlsConnection implementations to emit the acceptCertificate signal.

Since: 2.28

getCertificate

tlsConnectionGetCertificate

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m TlsCertificate

Returns: conn's certificate, or Nothing

Gets conn's certificate, as set by tlsConnectionSetCertificate.

Since: 2.28

getDatabase

tlsConnectionGetDatabase

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m TlsDatabase

Returns: the certificate database that conn uses or Nothing

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

Since: 2.30

getInteraction

tlsConnectionGetInteraction

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a connection

-> m TlsInteraction

Returns: The interaction object.

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 Nothing is returned, then no user interaction will occur for this connection.

Since: 2.30

getNegotiatedProtocol

tlsConnectionGetNegotiatedProtocol

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m (Maybe Text)

Returns: the negotiated protocol, or Nothing

Gets the name of the application-layer protocol negotiated during the handshake.

If the peer did not use the ALPN extension, or did not advertise a protocol that matched one of conn's protocols, or the TLS backend does not support ALPN, then this will be Nothing. See tlsConnectionSetAdvertisedProtocols.

Since: 2.60

getPeerCertificate

tlsConnectionGetPeerCertificate

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m TlsCertificate

Returns: conn's peer's certificate, or Nothing

Gets conn's peer's certificate after the handshake has completed. (It is not set during the emission of acceptCertificate.)

Since: 2.28

getPeerCertificateErrors

tlsConnectionGetPeerCertificateErrors

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m [TlsCertificateFlags]

Returns: conn's peer's certificate errors

Gets the errors associated with validating conn's peer's certificate, after the handshake has completed. (It is not set during the emission of acceptCertificate.)

Since: 2.28

getRehandshakeMode

tlsConnectionGetRehandshakeMode

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m TlsRehandshakeMode

Returns: conn's rehandshaking mode

Deprecated: (Since version 2.60.)Changing the rehandshake mode is no longer required for compatibility. Also, rehandshaking has been removed from the TLS protocol in TLS 1.3.

Gets conn rehandshaking mode. See tlsConnectionSetRehandshakeMode for details.

Since: 2.28

getRequireCloseNotify

tlsConnectionGetRequireCloseNotify

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m Bool

Returns: True if conn requires a proper TLS close notification.

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

Since: 2.28

getUseSystemCertdb

tlsConnectionGetUseSystemCertdb

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> m Bool

Returns: whether conn uses the system certificate database

Deprecated: (Since version 2.30)Use tlsConnectionGetDatabase instead

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

handshake

tlsConnectionHandshake

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsCancellable b)

=> a

conn: a TlsConnection

-> Maybe b

cancellable: a Cancellable, or Nothing

-> m ()

(Can throw GError)

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 tlsConnectionHandshake 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.

If TLS 1.2 or older is in use, you may call tlsConnectionHandshake after the initial handshake to rehandshake; however, this usage is deprecated because rehandshaking is no longer part of the TLS protocol in TLS 1.3. Accordingly, the behavior of calling this function after the initial handshake is now undefined, except it is guaranteed to be reasonable and nondestructive so as to preserve compatibility with code written for older versions of GLib.

TlsConnection::accept_certificate may be emitted during the handshake.

Since: 2.28

handshakeAsync

tlsConnectionHandshakeAsync

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsCancellable b)

=> a

conn: a TlsConnection

-> Int32

ioPriority: the [I/O priority][io-priority] of the request

-> Maybe b

cancellable: a Cancellable, or Nothing

-> Maybe AsyncReadyCallback

callback: callback to call when the handshake is complete

-> m ()

Asynchronously performs a TLS handshake on conn. See tlsConnectionHandshake for more information.

Since: 2.28

handshakeFinish

tlsConnectionHandshakeFinish

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsAsyncResult b)

=> a

conn: a TlsConnection

-> b

result: a AsyncResult.

-> m ()

(Can throw GError)

Finish an asynchronous TLS handshake operation. See tlsConnectionHandshake for more information.

Since: 2.28

setAdvertisedProtocols

tlsConnectionSetAdvertisedProtocols

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> Maybe [Text]

protocols: a Nothing-terminated array of ALPN protocol names (eg, "http/1.1", "h2"), or Nothing

-> m ()

Sets the list of application-layer protocols to advertise that the caller is willing to speak on this connection. The Application-Layer Protocol Negotiation (ALPN) extension will be used to negotiate a compatible protocol with the peer; use tlsConnectionGetNegotiatedProtocol to find the negotiated protocol after the handshake. Specifying Nothing for the the value of protocols will disable ALPN negotiation.

See IANA TLS ALPN Protocol IDs for a list of registered protocol IDs.

Since: 2.60

setCertificate

tlsConnectionSetCertificate

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsTlsCertificate b)

=> a

conn: a TlsConnection

-> b

certificate: the certificate to use for conn

-> m ()

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 TlsErrorCertificateRequired, that means that the server requires a certificate, and if you try connecting again, you should call this method first. You can call tlsClientConnectionGetAcceptedCas 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 tlsClientConnectionGetAcceptedCas will return non-Nothing.)

Since: 2.28

setDatabase

tlsConnectionSetDatabase

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsTlsDatabase b)

=> a

conn: a TlsConnection

-> b

database: a TlsDatabase

-> m ()

Sets the certificate database that is used to verify peer certificates. This is set to the default database by default. See tlsBackendGetDefaultDatabase. If set to Nothing, then peer certificate validation will always set the TlsCertificateFlagsUnknownCa error (meaning acceptCertificate will always be emitted on client-side connections, unless that bit is not set in TlsClientConnection:validation-flags).

Since: 2.30

setInteraction

tlsConnectionSetInteraction

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a, IsTlsInteraction b)

=> a

conn: a connection

-> Maybe b

interaction: an interaction object, or Nothing

-> m ()

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. Nothing can also be provided if no user interaction should occur for this connection.

Since: 2.30

setRehandshakeMode

tlsConnectionSetRehandshakeMode

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> TlsRehandshakeMode

mode: the rehandshaking mode

-> m ()

Deprecated: (Since version 2.60.)Changing the rehandshake mode is no longer required for compatibility. Also, rehandshaking has been removed from the TLS protocol in TLS 1.3.

Sets how conn behaves with respect to rehandshaking requests, when TLS 1.2 or older is in use.

TlsRehandshakeModeNever 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.)

TlsRehandshakeModeSafely 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.

TlsRehandshakeModeUnsafely 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: 2.28

setRequireCloseNotify

tlsConnectionSetRequireCloseNotify

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> Bool

requireCloseNotify: whether or not to require close notification

-> m ()

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 TlsErrorEof 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 tlsConnectionSetRequireCloseNotify 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 iOStreamClose 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:base-io-stream rather than closing conn itself, but note that this may only be done when no other operations are pending on conn or the base I/O stream.

Since: 2.28

setUseSystemCertdb

tlsConnectionSetUseSystemCertdb

Arguments

:: (HasCallStack, MonadIO m, IsTlsConnection a)

=> a

conn: a TlsConnection

-> Bool

useSystemCertdb: whether to use the system certificate database

-> m ()

Deprecated: (Since version 2.30)Use tlsConnectionSetDatabase instead

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 TlsCertificateFlagsUnknownCa error (meaning acceptCertificate will always be emitted on client-side connections, unless that bit is not set in TlsClientConnection:validation-flags).

Properties

advertisedProtocols

The list of application-layer protocols that the connection advertises that it is willing to speak. See tlsConnectionSetAdvertisedProtocols.

Since: 2.60

clearTlsConnectionAdvertisedProtocols :: (MonadIO m, IsTlsConnection o) => o -> m ()

Set the value of the “advertised-protocols” property to Nothing. When overloading is enabled, this is equivalent to

clear #advertisedProtocols

constructTlsConnectionAdvertisedProtocols :: IsTlsConnection o => [Text] -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “advertised-protocols” property. This is rarely needed directly, but it is used by new.

getTlsConnectionAdvertisedProtocols :: (MonadIO m, IsTlsConnection o) => o -> m (Maybe [Text])

Get the value of the “advertised-protocols” property. When overloading is enabled, this is equivalent to

get tlsConnection #advertisedProtocols

setTlsConnectionAdvertisedProtocols :: (MonadIO m, IsTlsConnection o) => o -> [Text] -> m ()

Set the value of the “advertised-protocols” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #advertisedProtocols := value ]

baseIoStream

The IOStream that the connection wraps. The connection holds a reference to this stream, and may run operations on the stream from other threads throughout its lifetime. Consequently, after the IOStream has been constructed, application code may only run its own operations on this stream when no IOStream operations are running.

Since: 2.28

constructTlsConnectionBaseIoStream :: (IsTlsConnection o, IsIOStream a) => a -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “base-io-stream” property. This is rarely needed directly, but it is used by new.

getTlsConnectionBaseIoStream :: (MonadIO m, IsTlsConnection o) => o -> m (Maybe IOStream)

Get the value of the “base-io-stream” property. When overloading is enabled, this is equivalent to

get tlsConnection #baseIoStream

certificate

The connection's certificate; see tlsConnectionSetCertificate.

Since: 2.28

constructTlsConnectionCertificate :: (IsTlsConnection o, IsTlsCertificate a) => a -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “certificate” property. This is rarely needed directly, but it is used by new.

getTlsConnectionCertificate :: (MonadIO m, IsTlsConnection o) => o -> m TlsCertificate

Get the value of the “certificate” property. When overloading is enabled, this is equivalent to

get tlsConnection #certificate

setTlsConnectionCertificate :: (MonadIO m, IsTlsConnection o, IsTlsCertificate a) => o -> a -> m ()

Set the value of the “certificate” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #certificate := value ]

database

The certificate database to use when verifying this TLS connection. If no certificate database is set, then the default database will be used. See tlsBackendGetDefaultDatabase.

Since: 2.30

constructTlsConnectionDatabase :: (IsTlsConnection o, IsTlsDatabase a) => a -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “database” property. This is rarely needed directly, but it is used by new.

getTlsConnectionDatabase :: (MonadIO m, IsTlsConnection o) => o -> m TlsDatabase

Get the value of the “database” property. When overloading is enabled, this is equivalent to

get tlsConnection #database

setTlsConnectionDatabase :: (MonadIO m, IsTlsConnection o, IsTlsDatabase a) => o -> a -> m ()

Set the value of the “database” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #database := value ]

interaction

A TlsInteraction object to be used when the connection or certificate database need to interact with the user. This will be used to prompt the user for passwords where necessary.

Since: 2.30

clearTlsConnectionInteraction :: (MonadIO m, IsTlsConnection o) => o -> m ()

Set the value of the “interaction” property to Nothing. When overloading is enabled, this is equivalent to

clear #interaction

constructTlsConnectionInteraction :: (IsTlsConnection o, IsTlsInteraction a) => a -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “interaction” property. This is rarely needed directly, but it is used by new.

getTlsConnectionInteraction :: (MonadIO m, IsTlsConnection o) => o -> m TlsInteraction

Get the value of the “interaction” property. When overloading is enabled, this is equivalent to

get tlsConnection #interaction

setTlsConnectionInteraction :: (MonadIO m, IsTlsConnection o, IsTlsInteraction a) => o -> a -> m ()

Set the value of the “interaction” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #interaction := value ]

negotiatedProtocol

The application-layer protocol negotiated during the TLS handshake. See tlsConnectionGetNegotiatedProtocol.

Since: 2.60

getTlsConnectionNegotiatedProtocol :: (MonadIO m, IsTlsConnection o) => o -> m (Maybe Text)

Get the value of the “negotiated-protocol” property. When overloading is enabled, this is equivalent to

get tlsConnection #negotiatedProtocol

peerCertificate

The connection's peer's certificate, after the TLS handshake has completed and the certificate has been accepted. Note in particular that this is not yet set during the emission of acceptCertificate.

(You can watch for a notify signal on this property to detect when a handshake has occurred.)

Since: 2.28

getTlsConnectionPeerCertificate :: (MonadIO m, IsTlsConnection o) => o -> m TlsCertificate

Get the value of the “peer-certificate” property. When overloading is enabled, this is equivalent to

get tlsConnection #peerCertificate

peerCertificateErrors

The errors noticed-and-ignored while verifying TlsConnection:peer-certificate. Normally this should be 0, but it may not be if TlsClientConnection:validation-flags is not TlsCertificateFlagsValidateAll, or if acceptCertificate overrode the default behavior.

Since: 2.28

getTlsConnectionPeerCertificateErrors :: (MonadIO m, IsTlsConnection o) => o -> m [TlsCertificateFlags]

Get the value of the “peer-certificate-errors” property. When overloading is enabled, this is equivalent to

get tlsConnection #peerCertificateErrors

rehandshakeMode

The rehandshaking mode. See tlsConnectionSetRehandshakeMode.

Since: 2.28

constructTlsConnectionRehandshakeMode :: IsTlsConnection o => TlsRehandshakeMode -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “rehandshake-mode” property. This is rarely needed directly, but it is used by new.

getTlsConnectionRehandshakeMode :: (MonadIO m, IsTlsConnection o) => o -> m TlsRehandshakeMode

Get the value of the “rehandshake-mode” property. When overloading is enabled, this is equivalent to

get tlsConnection #rehandshakeMode

setTlsConnectionRehandshakeMode :: (MonadIO m, IsTlsConnection o) => o -> TlsRehandshakeMode -> m ()

Set the value of the “rehandshake-mode” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #rehandshakeMode := value ]

requireCloseNotify

Whether or not proper TLS close notification is required. See tlsConnectionSetRequireCloseNotify.

Since: 2.28

constructTlsConnectionRequireCloseNotify :: IsTlsConnection o => Bool -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “require-close-notify” property. This is rarely needed directly, but it is used by new.

getTlsConnectionRequireCloseNotify :: (MonadIO m, IsTlsConnection o) => o -> m Bool

Get the value of the “require-close-notify” property. When overloading is enabled, this is equivalent to

get tlsConnection #requireCloseNotify

setTlsConnectionRequireCloseNotify :: (MonadIO m, IsTlsConnection o) => o -> Bool -> m ()

Set the value of the “require-close-notify” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #requireCloseNotify := value ]

useSystemCertdb

Whether or not the system certificate database will be used to verify peer certificates. See tlsConnectionSetUseSystemCertdb.

constructTlsConnectionUseSystemCertdb :: IsTlsConnection o => Bool -> IO (GValueConstruct o)

Construct a GValueConstruct with valid value for the “use-system-certdb” property. This is rarely needed directly, but it is used by new.

getTlsConnectionUseSystemCertdb :: (MonadIO m, IsTlsConnection o) => o -> m Bool

Get the value of the “use-system-certdb” property. When overloading is enabled, this is equivalent to

get tlsConnection #useSystemCertdb

setTlsConnectionUseSystemCertdb :: (MonadIO m, IsTlsConnection o) => o -> Bool -> m ()

Set the value of the “use-system-certdb” property. When overloading is enabled, this is equivalent to

set tlsConnection [ #useSystemCertdb := value ]

Signals

acceptCertificate

type C_TlsConnectionAcceptCertificateCallback = Ptr () -> Ptr TlsCertificate -> CUInt -> Ptr () -> IO CInt

Type for the callback on the (unwrapped) C side.

type TlsConnectionAcceptCertificateCallback

Arguments

 = TlsCertificate

peerCert: the peer's TlsCertificate

-> [TlsCertificateFlags]

errors: the problems with peerCert.

-> IO Bool

Returns: True to accept peerCert (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.

Emitted during the TLS handshake after the peer certificate has been received. You can examine peerCert's certification path by calling tlsCertificateGetIssuer on it.

For a client-side connection, peerCert is the server's certificate, and the signal will only be emitted if the certificate was not acceptable according to conn's TlsClientConnection: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 TlsErrorBadCertificate.

For a server-side connection, peerCert is the certificate presented by the client, if this was requested via the server's TlsServerConnection: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 TlsErrorBadCertificate, 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: 2.28

afterTlsConnectionAcceptCertificate :: (IsTlsConnection a, MonadIO m) => a -> TlsConnectionAcceptCertificateCallback -> m SignalHandlerId

Connect a signal handler for the acceptCertificate signal, to be run after the default handler. When overloading is enabled, this is equivalent to

after tlsConnection #acceptCertificate callback

genClosure_TlsConnectionAcceptCertificate :: MonadIO m => TlsConnectionAcceptCertificateCallback -> m (GClosure C_TlsConnectionAcceptCertificateCallback)

Wrap the callback into a GClosure.

mk_TlsConnectionAcceptCertificateCallback :: C_TlsConnectionAcceptCertificateCallback -> IO (FunPtr C_TlsConnectionAcceptCertificateCallback)

Generate a function pointer callable from C code, from a C_TlsConnectionAcceptCertificateCallback.

noTlsConnectionAcceptCertificateCallback :: Maybe TlsConnectionAcceptCertificateCallback

A convenience synonym for Nothing :: Maybe TlsConnectionAcceptCertificateCallback.

onTlsConnectionAcceptCertificate :: (IsTlsConnection a, MonadIO m) => a -> TlsConnectionAcceptCertificateCallback -> m SignalHandlerId

Connect a signal handler for the acceptCertificate signal, to be run before the default handler. When overloading is enabled, this is equivalent to

on tlsConnection #acceptCertificate callback

wrap_TlsConnectionAcceptCertificateCallback :: TlsConnectionAcceptCertificateCallback -> C_TlsConnectionAcceptCertificateCallback

Wrap a TlsConnectionAcceptCertificateCallback into a C_TlsConnectionAcceptCertificateCallback.