GoaProvider

GoaProvider — Abstract base class for providers

Properties

GVariant * preseed-data Read / Write

Object Hierarchy

    GObject
    ╰── GoaProvider
        ├── GoaOAuthProvider
        ╰── GoaOAuth2Provider

Description

GoaProvider is the base type for all providers.

Functions

goa_provider_get_provider_type ()

const gchar *
goa_provider_get_provider_type (GoaProvider *self);

Gets the type of self .

This is a pure virtual method - a subclass must provide an implementation.

Parameters

self

A GoaProvider.

 

Returns

A string owned by self , do not free.

[transfer none]


goa_provider_get_provider_name ()

gchar *
goa_provider_get_provider_name (GoaProvider *self,
                                GoaObject *object);

Gets a name for self and object that is suitable for display in an user interface. The returned value may depend on object (if it's not NULL) - for example, hosted accounts might return a different name.

This is a pure virtual method - a subclass must provide an implementation.

Parameters

self

A GoaProvider.

 

object

A GoaObject for an account.

[allow-none]

Returns

A string that should be freed with g_free().

[transfer full]


goa_provider_get_provider_icon ()

GIcon *
goa_provider_get_provider_icon (GoaProvider *self,
                                GoaObject *object);

Gets an icon for self and object that is suitable for display in an user interface. The returned value may depend on object - for example, hosted accounts might return a different icon.

This is a virtual method with a default implementation that returns a GThemedIcon with fallbacks constructed from the name goa-account-TYPE where TYPE is the return value of goa_provider_get_provider_type().

Parameters

self

A GoaProvider.

 

object

A GoaObject for an account.

 

Returns

An icon that should be freed with g_object_unref().

[transfer full]


goa_provider_get_provider_group ()

GoaProviderGroup
goa_provider_get_provider_group (GoaProvider *self);

goa_provider_get_provider_group has been deprecated since version 3.10 and should not be used in newly-written code.

Use goa_provider_get_provider_features() instead.

Gets the group to which self belongs that is suitable for organizing the providers while displaying them in an user interface.

This is a pure virtual method - a subclass must provide an implementation.

Parameters

self

A GoaProvider.

 

Returns

A GoaProviderGroup.

Since: 3.8


goa_provider_get_provider_features ()

GoaProviderFeatures
goa_provider_get_provider_features (GoaProvider *self);

Get the features bitmask (eg. GOA_PROVIDER_FEATURE_CHAT|GOA_PROVIDER_FEATURE_CONTACTS) supported by the provider.

Parameters

self

A GoaProvider.

 

Returns

The GoaProviderFeatures bitmask with the provided features.

Since: 3.10


goa_provider_build_object ()

gboolean
goa_provider_build_object (GoaProvider *self,
                           GoaObjectSkeleton *object,
                           GKeyFile *key_file,
                           const gchar *group,
                           GDBusConnection *connection,
                           gboolean just_added,
                           GError **error);

This method is called when construction account GoaObject from configuration data - it basically provides a way to add provider-specific information.

The passed in object will have a GoaAccount interface set. Implementations should validate and use data from key_file to add more interfaces to object .

Note that this may be called on already exported objects - for example on configuration files reload.

This is a pure virtual method - a subclass must provide an implementation.

Parameters

self

A GoaProvider.

 

object

The GoaObjectSkeleton that is being built.

 

key_file

The GKeyFile with configuation data.

 

group

The group in key_file to get data from.

 

connection

The GDBusConnection used by the daemon to connect to the message bus.

 

just_added

Whether the account was newly created or being updated.

 

error

Return location for error or NULL.

 

Returns

TRUE if data was valid, FALSE if error is set.


goa_provider_add_account ()

GoaObject *
goa_provider_add_account (GoaProvider *self,
                          GoaClient *client,
                          GtkDialog *dialog,
                          GtkBox *vbox,
                          GError **error);

This method brings up the user interface necessary to create a new account on client of the type for self , interacts with the user to get all information needed and creates the account.

The passed in dialog widget is guaranteed to be visible with vbox being empty and the only visible widget in dialog 's content area. The dialog has exactly one action widget, a cancel button with response id GTK_RESPONSE_CANCEL. Implementations are free to add additional action widgets, as needed.

If an account was successfully created, a GoaObject for the created account is returned. If dialog is dismissed, NULL is returned and error is set to GOA_ERROR_DIALOG_DISMISSED. If an account couldn't be created then error is set. In some cases, for example, when the credentials could not be stored in the keyring, a GoaObject can be returned even if error is set.

The caller will always show an error dialog if error is set unless the error is GOA_ERROR_DIALOG_DISMISSED.

Implementations should run the default main loop while interacting with the user and may do so using e.g. gtk_dialog_run() on dialog .

This is a pure virtual method - a subclass must provide an implementation.

Parameters

self

A GoaProvider.

 

client

A GoaClient.

 

dialog

A GtkDialog.

 

vbox

A vertically oriented GtkBox to put content in.

 

error

Return location for error or NULL.

 

Returns

The GoaObject for the created account (must be relased with g_object_unref()) or NULL if error is set.


goa_provider_set_preseed_data ()

void
goa_provider_set_preseed_data (GoaProvider *self,
                               GVariant *preseed_data);

Sets the “preseed-data” property to feed any information already collected that can be useful when creating a new account.

If the preseed_data GVariant is floating, it is consumed to allow 'inline' use of the g_variant_new() family of functions.

Parameters

self

The GoaProvider

 

preseed_data

A GVariant of type a{sv}

 

goa_provider_get_preseed_data ()

GVariant *
goa_provider_get_preseed_data (GoaProvider *self);

Gets the GVariant set through the “preseed-data” property.

Parameters

self

The GoaProvider

 

Returns

A GVariant that is known to be valid until the property is overridden or the provider freed.

[transfer none]


goa_provider_refresh_account ()

gboolean
goa_provider_refresh_account (GoaProvider *self,
                              GoaClient *client,
                              GoaObject *object,
                              GtkWindow *parent,
                              GError **error);

This method brings up the user interface necessary for refreshing the credentials for the account specified by object . This typically involves having the user log in to the account again.

Implementations should use parent (unless NULL) as the transient parent of any created windows/dialogs.

Implementations should run the default main loop while interacting with the user.

This is a pure virtual method - a subclass must provide an implementation.

Parameters

self

A GoaProvider.

 

client

A GoaClient.

 

object

A GoaObject with a GoaAccount interface.

 

parent

Transient parent of dialogs or NULL.

[allow-none]

error

Return location for error or NULL.

 

Returns

TRUE if the account has been refreshed, FALSE if error is set.


goa_provider_show_account ()

void
goa_provider_show_account (GoaProvider *self,
                           GoaClient *client,
                           GoaObject *object,
                           GtkBox *vbox,
                           GtkGrid *dummy1,
                           GtkGrid *dummy2);

Method used to add widgets in the control panel for the account represented by object .

This is a virtual method where the default implementation adds one GtkSwitch per service supported by the provider (as reported by goa_provider_get_provider_features()).

Parameters

self

A GoaProvider.

 

client

A GoaClient.

 

object

A GoaObject with a GoaAccount interface.

 

vbox

A vertically oriented GtkBox to put content in.

 

grid

A GtkGrid to put content in.

 

dummy

Unused.

 

goa_provider_ensure_credentials ()

void
goa_provider_ensure_credentials (GoaProvider *self,
                                 GoaObject *object,
                                 GCancellable *cancellable,
                                 GAsyncReadyCallback callback,
                                 gpointer user_data);

Ensures that credentials for object are still valid.

When the result is ready, callback will be called in the the thread-default main loop this function was called from. You can then call goa_provider_ensure_credentials_finish() to get the result of the operation.

This is a virtual method where the default implementation simply throws the GOA_ERROR_NOT_SUPPORTED error. A subclass may provide another implementation.

Parameters

self

A GoaProvider.

 

object

A GoaObject with a GoaAccount interface.

 

cancellable

A GCancellable or NULL.

[allow-none]

callback

The function to call when the request is satisfied.

 

user_data

Pointer to pass to callback .

 

goa_provider_ensure_credentials_finish ()

gboolean
goa_provider_ensure_credentials_finish
                               (GoaProvider *self,
                                gint *out_expires_in,
                                GAsyncResult *res,
                                GError **error);

Finishes an operation started with goa_provider_ensure_credentials().

Parameters

self

A GoaProvider.

 

out_expires_in

Return location for how long the expired credentials are good for (0 if unknown) or NULL.

[out]

res

A GAsyncResult obtained from the GAsyncReadyCallback passed to goa_provider_ensure_credentials().

 

error

Return location for error or NULL.

 

Returns

TRUE if the credentials for the passed GoaObject are valid, FALSE if error is set.


goa_provider_ensure_credentials_sync ()

gboolean
goa_provider_ensure_credentials_sync (GoaProvider *self,
                                      GoaObject *object,
                                      gint *out_expires_in,
                                      GCancellable *cancellable,
                                      GError **error);

Like goa_provider_ensure_credentials() but blocks the calling thread until an answer is received.

Parameters

self

A GoaProvider.

 

object

A GoaObject with a GoaAccount interface.

 

out_expires_in

Return location for how long the expired credentials are good for (0 if unknown) or NULL.

[out]

cancellable

A GCancellable or NULL.

[allow-none]

error

Return location for error or NULL.

 

Returns

TRUE if the credentials for the passed GoaObject are valid, FALSE if error is set.


goa_provider_get_credentials_generation ()

guint
goa_provider_get_credentials_generation
                               (GoaProvider *self);

Gets the generation of credentials being used for the provider.

Implementations should bump this number when changes are introduced that may render existing credentials unusable.

For example, if an additional scope is requested (e.g. access to contacts data) while obtaining credentials, then this number needs to be bumped since existing credentials are not good for the added scope.

This is a virtual method where the default implementation returns 0.

Parameters

self

A GoaProvider.

 

Returns

The current generation of credentials.


goa_provider_get_all ()

void
goa_provider_get_all (GAsyncReadyCallback callback,
                      gpointer user_data);

Creates a list of all the available GoaProvider instances.

When the result is ready, callback will be called in the the thread-default main loop this function was called from. You can then call goa_provider_get_all_finish() to get the result of the operation.

See goa_provider_get_for_provider_type() for details on how the providers are found.

Parameters

callback

The function to call when the request is satisfied.

 

user_data

Pointer to pass to callback .

 

goa_provider_get_for_provider_type ()

GoaProvider *
goa_provider_get_for_provider_type (const gchar *provider_type);

Returns a GoaProvider for provider_type (if available).

If provider_type doesn't contain any "/", a GOA_PROVIDER_EXTENSION_POINT_NAME extension for provider_type is looked up and the newly created GoaProvider, if any, is returned.

If provider_type contains a "/", a GOA_PROVIDER_FACTORY_EXTENSION_POINT_NAME extension for the first part of provider_type is looked up. If found, the GoaProviderFactory is used to create a dynamic GoaProvider matching the second part of provider_type .

Parameters

provider_type

A provider type.

 

Returns

A GoaProvider (that must be freed with g_object_unref()) or NULL if not found.

[transfer full]

Types and Values

GoaProvider

typedef struct _GoaProvider GoaProvider;

The GoaProvider structure contains only private data and should only be accessed using the provided API.


GoaProviderClass

typedef struct {
  GObjectClass parent_class;

  /* pure virtual */
  GoaObject              *(*add_account)                  (GoaProvider            *self,
                                                           GoaClient              *client,
                                                           GtkDialog              *dialog,
                                                           GtkBox                 *vbox,
                                                           GError                **error);
  GoaProviderFeatures     (*get_provider_features)        (GoaProvider            *self);
  GoaProviderGroup        (*get_provider_group)           (GoaProvider            *self);
  gchar                  *(*get_provider_name)            (GoaProvider            *self,
                                                           GoaObject              *object);
  const gchar            *(*get_provider_type)            (GoaProvider            *self);
  gboolean                (*refresh_account)              (GoaProvider            *self,
                                                           GoaClient              *client,
                                                           GoaObject              *object,
                                                           GtkWindow              *parent,
                                                           GError                **error);

  /* virtual but with default implementation */
  gboolean                (*build_object)                 (GoaProvider            *self,
                                                           GoaObjectSkeleton      *object,
                                                           GKeyFile               *key_file,
                                                           const gchar            *group,
                                                           GDBusConnection        *connection,
                                                           gboolean                just_added,
                                                           GError                **error);
  gboolean                (*ensure_credentials_sync)      (GoaProvider            *self,
                                                           GoaObject              *object,
                                                           gint                   *out_expires_in,
                                                           GCancellable           *cancellable,
                                                           GError                **error);
  guint                   (*get_credentials_generation)   (GoaProvider            *self);
  GIcon                  *(*get_provider_icon)            (GoaProvider            *self,
                                                           GoaObject              *object);
  void                    (*initialize)                   (GoaProvider            *self);
  void                    (*remove_account)               (GoaProvider            *self,
                                                           GoaObject              *object,
                                                           GCancellable           *cancellable,
                                                           GAsyncReadyCallback     callback,
                                                           gpointer                user_data);
  gboolean                (*remove_account_finish)        (GoaProvider            *self,
                                                           GAsyncResult           *res,
                                                           GError                **error);
  void                    (*show_account)                 (GoaProvider            *self,
                                                           GoaClient              *client,
                                                           GoaObject              *object,
                                                           GtkBox                 *vbox,
                                                           GtkGrid                *dummy1,
                                                           GtkGrid                *dummy2);
} GoaProviderClass;

Class structure for GoaProvider.

Members

add_account ()

Virtual function for goa_provider_add_account().

 

get_provider_features ()

Virtual function for goa_provider_get_provider_features().

 

get_provider_group ()

Virtual function for goa_provider_get_provider_group().

 

get_provider_name ()

Virtual function for goa_provider_get_provider_name().

 

get_provider_type ()

Virtual function for goa_provider_get_provider_type().

 

refresh_account ()

Virtual function for goa_provider_refresh_account().

 

build_object ()

Virtual function for goa_provider_build_object().

 

ensure_credentials_sync ()

Virtual function for goa_provider_ensure_credentials_sync().

 

get_credentials_generation ()

Virtual function for goa_provider_get_credentials_generation().

 

get_provider_icon ()

Virtual function for goa_provider_get_provider_icon().

 

initialize ()

Virtual function for goa_provider_initialize().

 

remove_account ()

   

remove_account_finish ()

   

show_account ()

Virtual function for goa_provider_show_account().

 

enum GoaProviderGroup

An enum for specifying which group a provider belongs to. This is can be used to organize the providers while displaying them in an user interface.

Members

GOA_PROVIDER_GROUP_BRANDED

Providers with a well-known brand. For example, Google and Facebook.

 

GOA_PROVIDER_GROUP_CONTACTS

Providers that offer address book services. For example, CardDAV.

 

GOA_PROVIDER_GROUP_MAIL

Providers that offer email-like messaging services. For example, IMAP and SMTP.

 

GOA_PROVIDER_GROUP_TICKETING

Providers with ticketing capabilities. For example, Kerberos.

 

GOA_PROVIDER_GROUP_CHAT

Providers that offer chat-like messaging capabilities. For example, XMPP, IRC.

 

GOA_PROVIDER_GROUP_INVALID

Used for error handling. No provider should belong to this group.

 

enum GoaProviderFeatures

These flags specify the features exported by each provider. They can be expecially useful to restrict the list of available providers when requesting the creation of an account for a specific purpose (eg. from a chat program).

Members

GOA_PROVIDER_FEATURE_BRANDED

Common providers to be highlighted (ie. Google, OwnCloud).

 

GOA_PROVIDER_FEATURE_MAIL

Mail services (ie. SMTP, IMAP).

 

GOA_PROVIDER_FEATURE_CALENDAR

Calendaring services (ie. CalDAV).

 

GOA_PROVIDER_FEATURE_CONTACTS

Addressbook services (ie. CardDAV).

 

GOA_PROVIDER_FEATURE_CHAT

Instant messaging services (ie. XMPP, IRC).

 

GOA_PROVIDER_FEATURE_DOCUMENTS

Documents storage services (ie. Google Documents).

 

GOA_PROVIDER_FEATURE_PHOTOS

Photos storage services (ie. Flickr).

 

GOA_PROVIDER_FEATURE_FILES

Files storage services (ie. WebDAV).

 

GOA_PROVIDER_FEATURE_TICKETING

Ticketing services (ie. Kerberos).

 

GOA_PROVIDER_FEATURE_READ_LATER

Read later services (eg. Pocket).

 

GOA_PROVIDER_FEATURE_PRINTERS

Network printing services (e.g. Google Cloud Print).

 

GOA_PROVIDER_FEATURE_MAPS

Maps related services (e.g. Foursquare, Facebook).

 

GOA_PROVIDER_FEATURE_MUSIC

Music related services (e.g. Vkontakte).

 

GOA_PROVIDER_FEATURE_TODO

   

GOA_PROVIDER_FEATURE_INVALID

Used for error handling. No provider should provide this feature.

 

Since: 3.10


GOA_PROVIDER_EXTENSION_POINT_NAME

#define GOA_PROVIDER_EXTENSION_POINT_NAME "goa-backend-provider"

Extension point for GoaProvider implementations.

Property Details

The “preseed-data” property

  “preseed-data”             GVariant *

An GVariant of type a{sv} storing any information already collected that can be useful when creating a new account. For instance, this can be useful to reuse the HTTP cookies from an existing browser session to skip the prompt for username and password in the OAuth2-based providers by passing a GVariant with the following contents:

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{
  "cookies": [
    {
      "domain": "example.com",
      "name": "LSID",
      "value": "asdfasdfasdf"
    },
    {
      "domain": "accounts.example.com",
      "name": "SSID",
      "value": "asdfasdfasdf"
    }
  ]
}

Unknown or unsupported keys will be ignored by providers.

Flags: Read / Write

Allowed values: GVariant<a{sv}>

Default value: NULL