GTlsInteraction

## GTlsInteraction GTlsInteraction — Interaction with the user during TLS operations. |

## Synopsis

    #include <gio/gio.h>

                        GTlsInteraction;
    enum                GTlsInteractionResult;
    GTlsInteractionResult g_tls_interaction_ask_password    (GTlsInteraction *interaction,
                                                             GTlsPassword *password,
                                                             GCancellable *cancellable,
                                                             GError **error);
    void                g_tls_interaction_ask_password_async
                                                            (GTlsInteraction *interaction,
                                                             GTlsPassword *password,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);
    GTlsInteractionResult g_tls_interaction_ask_password_finish
                                                            (GTlsInteraction *interaction,
                                                             GAsyncResult *result,
                                                             GError **error);

## Object Hierarchy

      GObject
       +----GTlsInteraction

## Description

GTlsInteraction provides a mechanism for the TLS connection and database code to interact with the user. It can be used to ask the user for passwords.

To use a GTlsInteraction with a TLS connection use `g_tls_connection_set_interaction()`.

Callers should instantiate a subclass of this that implements all the various callbacks to show the required dialogs, such as GtkTlsInteraction. If no interaction is desired, usually `NULL` can be passed, see each method taking a GTlsInteraction for details.

## Details

### GTlsInteraction

    typedef struct _GTlsInteraction GTlsInteraction;

An object representing interaction that the TLS connection and database might have with the user.

Since 2.30

### enum GTlsInteractionResult

    typedef enum {
      G_TLS_INTERACTION_UNHANDLED,
      G_TLS_INTERACTION_HANDLED,
      G_TLS_INTERACTION_FAILED
    } GTlsInteractionResult;

GTlsInteractionResult is returned by various functions in GTlsInteraction when finishing an interaction request.

`G_TLS_INTERACTION_UNHANDLED` | The interaction was unhandled (i.e. not implemented).
`G_TLS_INTERACTION_HANDLED` | The interaction completed, and resulting data is available.
`G_TLS_INTERACTION_FAILED` | The interaction has failed, or was cancelled. and the operation should be aborted.

Since 2.30

### g_tls_interaction_ask_password ()

    GTlsInteractionResult g_tls_interaction_ask_password    (GTlsInteraction *interaction,
                                                             GTlsPassword *password,
                                                             GCancellable *cancellable,
                                                             GError **error);

This function is normally called by GTlsConnection or GTlsDatabase to ask the user for a password.

Derived subclasses usually implement a password prompt, although they may also choose to provide a password from elsewhere. The `password` value will be filled in and then `callback` will be called. Alternatively the user may abort this password request, which will usually abort the TLS connection.

If the interaction is cancelled by the cancellation object, or by the user then `G_TLS_INTERACTION_ABORTED` will be returned. Certain implementations may not support immediate cancellation.

`interaction` : | a GTlsInteraction object
`password` : | a GTlsPassword object
`cancellable` : | an optional GCancellable cancellation object
`error` : | an optional location to place an error on failure
Returns : | The status of the ask password interaction.

Since 2.30

### g_tls_interaction_ask_password_async ()

    void                g_tls_interaction_ask_password_async
                                                            (GTlsInteraction *interaction,
                                                             GTlsPassword *password,
                                                             GCancellable *cancellable,
                                                             GAsyncReadyCallback callback,
                                                             gpointer user_data);

This function is normally called by GTlsConnection or GTlsDatabase to ask the user for a password.

Derived subclasses usually implement a password prompt, although they may also choose to provide a password from elsewhere. The `password` value will be filled in and then `callback` will be called. Alternatively the user may abort this password request, which will usually abort the TLS connection.

The `callback` will be invoked on thread-default main context of the thread that called this function. The `callback` should call `g_tls_interaction_ask_password_finish()` to get the status of the user interaction.

Certain implementations may not support immediate cancellation.

`interaction` : | a GTlsInteraction object
`password` : | a GTlsPassword object
`cancellable` : | an optional GCancellable cancellation object
`callback` : | will be called when the interaction completes. [allow-none]
`user_data` : | data to pass to the `callback`. [allow-none]

Since 2.30

### g_tls_interaction_ask_password_finish ()

    GTlsInteractionResult g_tls_interaction_ask_password_finish
                                                            (GTlsInteraction *interaction,
                                                             GAsyncResult *result,
                                                             GError **error);

Complete an ask password user interaction request. This should be once the `g_tls_interaction_ask_password()` completion callback is called.

If `G_TLS_INTERACTION_HANDLED` is returned, then the GTlsPassword passed to `g_tls_interaction_ask_password()` will have its password filled in.

If the interaction is cancelled by the cancellation object, or by the user then `G_TLS_INTERACTION_ABORTED` will be returned.

`interaction` : | a GTlsInteraction object
`result` : | the result passed to the callback
`error` : | an optional location to place an error on failure
Returns : | The status of the ask password interaction.

Since 2.30