libsecret/libsecret/secret-retrievable.c
Daiki Ueno 938640ae52 secret-retrievable: New interface to represent read-only item
This is a ground work for adding a local storage backend.  As
SecretItem is derived from GDBusProxy, it cannot be simply exposed to
the application through the secret_password_search() if the item is
not backed by the DBus API.  This adds an abstract interface
representing a read-only view of a secret item for that purpose.
2019-07-18 13:54:12 +00:00

308 lines
8.3 KiB
C

/* libsecret - GLib wrapper for Secret Service
*
* Copyright 2019 Red Hat, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation; either version 2.1 of the licence or (at
* your option) any later version.
*
* See the included COPYING file for more information.
*
* Author: Daiki Ueno
*/
#include "config.h"
#include "secret-retrievable.h"
#include "secret-private.h"
/**
* SECTION:secret-retrievable
* @title: SecretRetrievable
* @short_description: A read-only secret item
*
* #SecretRetrievable provides a read-only view of a secret item
* stored in the Secret Service.
*
* Each item has a value, represented by a #SecretValue, which can be
* retrieved by secret_retrievable_retrieve_secret() and
* secret_retrievable_retrieve_secret_finish().
*
* Stability: Stable
*/
/**
* SecretRetrievable:
*
* An object representing a read-only view of a secret item in the
* Secret Service.
*
* Since: 0.19.0
*/
/**
* SecretRetrievableInterface:
* @parent_iface: the parent interface
* @retrieve_secret: implementation of secret_retrievable_retrieve_secret(),
* required
* @retrieve_secret_finish: implementation of
* secret_retrievable_retrieve_secret_finish(), required
*
* The interface for #SecretRetrievable.
*
* Since: 0.19.0
*/
G_DEFINE_INTERFACE (SecretRetrievable, secret_retrievable, G_TYPE_OBJECT);
static void
secret_retrievable_default_init (SecretRetrievableInterface *iface)
{
/**
* SecretRetrievable:attributes: (type GLib.HashTable(utf8,utf8)) (transfer full)
*
* The attributes set on this item. Attributes are used to locate an
* item. They are not guaranteed to be stored or transferred securely.
*
* Since: 0.19.0
*/
g_object_interface_install_property (iface,
g_param_spec_boxed ("attributes", "Attributes", "Item attributes",
G_TYPE_HASH_TABLE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* SecretRetrievable:label:
*
* The human readable label for the item.
*
* Since: 0.19.0
*/
g_object_interface_install_property (iface,
g_param_spec_string ("label", "Label", "Item label",
NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* SecretRetrievable:created:
*
* The date and time (in seconds since the UNIX epoch) that this
* item was created.
*
* Since: 0.19.0
*/
g_object_interface_install_property (iface,
g_param_spec_uint64 ("created", "Created", "Item creation date",
0UL, G_MAXUINT64, 0UL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* SecretRetrievable:modified:
*
* The date and time (in seconds since the UNIX epoch) that this
* item was last modified.
*
* Since: 0.19.0
*/
g_object_interface_install_property (iface,
g_param_spec_uint64 ("modified", "Modified", "Item modified date",
0UL, G_MAXUINT64, 0UL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
/**
* secret_retrievable_retrieve_secret:
* @self: a retrievable object
* @cancellable: (nullable): optional cancellation object
* @callback: called when the operation completes
* @user_data: data to pass to the callback
*
* Retrieve the secret value of this object.
*
* Each retrievable object has a single secret which might be a
* password or some other secret binary value.
*
* This function returns immediately and completes asynchronously.
*
* Since: 0.19.0
*/
void
secret_retrievable_retrieve_secret (SecretRetrievable *self,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data)
{
SecretRetrievableInterface *iface;
g_return_if_fail (SECRET_IS_RETRIEVABLE (self));
iface = SECRET_RETRIEVABLE_GET_IFACE (self);
g_return_if_fail (iface->retrieve_secret != NULL);
iface->retrieve_secret (self, cancellable, callback, user_data);
}
/**
* secret_retrievable_retrieve_secret_finish:
* @self: a retrievable object
* @result: asynchronous result passed to callback
* @error: location to place error on failure
*
* Complete asynchronous operation to retrieve the secret value of this object.
*
* Returns: (transfer full) (nullable): the secret value which should be
* released with secret_value_unref(), or %NULL
*
* Since: 0.19.0
*/
SecretValue *
secret_retrievable_retrieve_secret_finish (SecretRetrievable *self,
GAsyncResult *result,
GError **error)
{
SecretRetrievableInterface *iface;
g_return_val_if_fail (SECRET_IS_RETRIEVABLE (self), NULL);
iface = SECRET_RETRIEVABLE_GET_IFACE (self);
g_return_val_if_fail (iface->retrieve_secret_finish != NULL, NULL);
return iface->retrieve_secret_finish (self, result, error);
}
/**
* secret_retrievable_retrieve_secret_sync:
* @self: a retrievable object
* @cancellable: (nullable): optional cancellation object
* @error: location to place error on failure
*
* Retrieve the secret value of this object synchronously.
*
* Each retrievable object has a single secret which might be a
* password or some other secret binary value.
*
* This method may block indefinitely and should not be used in user interface
* threads.
*
* Returns: (transfer full) (nullable): the secret value which should be
* released with secret_value_unref(), or %NULL
*
* Since: 0.19.0
*/
SecretValue *
secret_retrievable_retrieve_secret_sync (SecretRetrievable *self,
GCancellable *cancellable,
GError **error)
{
SecretSync *sync;
SecretValue *value;
g_return_val_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable), FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
sync = _secret_sync_new ();
g_main_context_push_thread_default (sync->context);
secret_retrievable_retrieve_secret (self,
cancellable,
_secret_sync_on_result, sync);
g_main_loop_run (sync->loop);
value = secret_retrievable_retrieve_secret_finish (self,
sync->result,
error);
g_main_context_pop_thread_default (sync->context);
_secret_sync_free (sync);
return value;
}
/**
* secret_retrievable_get_attributes:
* @self: a retrievable object
*
* Get the attributes of this object.
*
* The attributes are a mapping of string keys to string values.
* Attributes are used to search for items. Attributes are not stored
* or transferred securely by the secret service.
*
* Do not modify the attribute returned by this method.
*
* Returns: (transfer full) (element-type utf8 utf8): a new reference
* to the attributes, which should not be modified, and
* released with g_hash_table_unref()
*
* Since: 0.19.0
*/
GHashTable *
secret_retrievable_get_attributes (SecretRetrievable *self)
{
GHashTable *value;
g_return_val_if_fail (SECRET_IS_RETRIEVABLE (self), NULL);
g_object_get (G_OBJECT (self), "attributes", &value, NULL);
return value;
}
/**
* secret_retrievable_get_label:
* @self: a retrievable object
*
* Get the label of this item.
*
* Returns: (transfer full): the label, which should be freed with g_free()
*
* Since: 0.19.0
*/
gchar *
secret_retrievable_get_label (SecretRetrievable *self)
{
gchar *value;
g_return_val_if_fail (SECRET_IS_RETRIEVABLE (self), NULL);
g_object_get (G_OBJECT (self), "label", &value, NULL);
return value;
}
/**
* secret_retrievable_get_created:
* @self: a retrievable object
*
* Get the created date and time of the object. The return value is
* the number of seconds since the unix epoch, January 1st 1970.
*
* Returns: the created date and time
*
* Since: 0.19.0
*/
guint64
secret_retrievable_get_created (SecretRetrievable *self)
{
guint64 value;
g_return_val_if_fail (SECRET_IS_RETRIEVABLE (self), 0);
g_object_get (G_OBJECT (self), "created", &value, NULL);
return value;
}
/**
* secret_retrievable_get_modified:
* @self: a retrievable object
*
* Get the modified date and time of the object. The return value is
* the number of seconds since the unix epoch, January 1st 1970.
*
* Returns: the modified date and time
*
* Since: 0.19.0
*/
guint64
secret_retrievable_get_modified (SecretRetrievable *self)
{
guint64 value;
g_return_val_if_fail (SECRET_IS_RETRIEVABLE (self), 0);
g_object_get (G_OBJECT (self), "modified", &value, NULL);
return value;
}