view pui-get-updates.c @ 58:9cbb0f8a66c4

Add setting to disable preferences widgets This just makes the widgets in the preferences application insensitive, settings can still be changed by directly editing the configuration file.
author Guido Berhoerster <guido+pui@berhoerster.name>
date Tue, 06 Sep 2022 19:11:21 +0200
parents 6884bb8130ca
children
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/*
 * Copyright (C) 2018 Guido Berhoerster <guido+pui@berhoerster.name>
 *
 * Permission is hereby granted, free of charge, to any person obtaining
 * a copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice shall be included
 * in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

#include "pui-get-updates.h"

typedef struct {
	PkControl	*pk_control;
	PkTask		*pk_task;
	guint		refresh_interval;
} PuiGetUpdates;

GQuark
pui_get_updates_error_quark(void)
{
	return (g_quark_from_static_string("pui-get-updates-error-quark"));
}

static void
on_get_updates_finished(GObject *source_object, GAsyncResult *async_result,
    gpointer user_data)
{
	GTask		*task = user_data;
	PuiGetUpdates *get_updates;
	PkResults	*results = NULL;
	PkError		*pk_error = NULL;
	GError		*error = NULL;
	gint		error_code;
	GPtrArray	*package_list;

	get_updates = g_task_get_task_data(task);

	g_debug("get updates transaction finished");
	results = pk_client_generic_finish(PK_CLIENT(get_updates->pk_task),
	    async_result, &error);
	if (results == NULL) {
		/* pass the error on */
		g_task_return_error(task, error);
		goto out;
	}

	pk_error = pk_results_get_error_code(results);
	if (pk_error != NULL) {
		/* transaction failed, return error */
		g_debug("failed to refresh the cache: %s",
		    pk_error_get_details(pk_error));
		if (pk_error_get_code(pk_error) ==
		    PK_ERROR_ENUM_TRANSACTION_CANCELLED) {
			error_code = PUI_GET_UPDATES_ERROR_CANCELLED;
		} else {
			error_code =
			    PUI_GET_UPDATES_ERROR_GET_UPDATES_FAILED;
		}
		error = g_error_new(PUI_GET_UPDATES_ERROR, error_code,
		    "Failed to get package updates: %s",
		    pk_error_get_details(pk_error));
		g_task_return_error(task, error);
		g_object_unref(pk_error);
		goto out;
	}

	/* return results */
	package_list = pk_results_get_package_array(results);
	g_assert(package_list != NULL);
	g_task_return_pointer(task, package_list,
	    (GDestroyNotify)g_ptr_array_unref);

out:
	if (results != NULL) {
		g_object_unref(results);
	}
	g_object_unref(task);
}

static void
on_refresh_cache_finished(GObject *source_object, GAsyncResult *async_result,
    gpointer user_data)
{
	GTask		*task = user_data;
	PuiGetUpdates *get_updates;
	PkResults	*results = NULL;
	PkClient	*pk_client;
	GError		*error = NULL;
	PkError		*pk_error = NULL;
	gint		error_code;

	get_updates = g_task_get_task_data(task);
	pk_client = PK_CLIENT(get_updates->pk_task);

	g_debug("refresh cache transaction finished");
	results = pk_client_generic_finish(pk_client, async_result, &error);
	if (results == NULL) {
		g_task_return_error(task, error);
		goto out;
	}

	pk_error = pk_results_get_error_code(results);
	if (pk_error != NULL) {
		/* transaction failed, return error */
		g_debug("failed to refresh the cache: %s",
		    pk_error_get_details(pk_error));
		if (pk_error_get_code(pk_error) ==
		    PK_ERROR_ENUM_TRANSACTION_CANCELLED) {
			error_code = PUI_GET_UPDATES_ERROR_CANCELLED;
		} else {
			error_code = PUI_GET_UPDATES_ERROR_REFRESH_FAILED;
		}
		error = g_error_new(PUI_GET_UPDATES_ERROR, error_code,
		    "Failed to refresh the cache: %s",
		    pk_error_get_details(pk_error));
		g_task_return_error(task, error);
		g_object_unref(pk_error);
		goto out;
	}

	/* cache is up to date, get updates */
	pk_client_get_updates_async(pk_client,
	    pk_bitfield_value(PK_FILTER_ENUM_NONE),
	    g_task_get_cancellable(task), NULL, NULL, on_get_updates_finished,
	    task);

out:
	if (results != NULL) {
		g_object_unref(results);
	}
}

static void
on_get_time_since_refresh_finished(GObject *source_object,
    GAsyncResult *async_result, gpointer user_data)
{
	GTask		*task = user_data;
	PuiGetUpdates *get_updates;
	guint		last_refresh;
	GError		*error = NULL;
	PkClient	*pk_client;

	get_updates = g_task_get_task_data(task);
	pk_client = PK_CLIENT(get_updates->pk_task);

	last_refresh =
	    pk_control_get_time_since_action_finish(get_updates->pk_control,
	    async_result, &error);
	if (last_refresh == 0) {
		g_task_return_error(task, error);
		g_object_unref(task);
		return;
	}
	g_debug("time since last cache refresh: %us", last_refresh);

	if (last_refresh > get_updates->refresh_interval) {
		/* cache is out of date, refresh first */
		g_debug("refreshing the cache");
		pk_client_refresh_cache_async(pk_client, FALSE,
		    g_task_get_cancellable(task), NULL, NULL,
		    on_refresh_cache_finished, task);
	} else {
		/* cache is up to date, get updates */
		g_debug("getting updates");
		pk_client_get_updates_async(pk_client,
		    pk_bitfield_value(PK_FILTER_ENUM_NONE),
		    g_task_get_cancellable(task), NULL, NULL,
		    on_get_updates_finished, task);
	}
}

static void
pui_get_updates_free(gpointer data)
{
	PuiGetUpdates *get_updates = data;

	g_object_unref(get_updates->pk_control);
	g_object_unref(get_updates->pk_task);
	g_slice_free(PuiGetUpdates, data);
}

void
pui_get_updates_async(PkControl *pk_control, guint refresh_interval,
    GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data)
{
	PuiGetUpdates *get_updates;
	GTask		*task;
	PkClient	*pk_client;

	get_updates = g_slice_new0(PuiGetUpdates);
	get_updates->pk_control = g_object_ref(pk_control);
	get_updates->pk_task = pk_task_new();
	get_updates->refresh_interval = refresh_interval;

	pk_client = PK_CLIENT(get_updates->pk_task);
	pk_client_set_cache_age(pk_client, refresh_interval);
	pk_client_set_background(pk_client, TRUE);

	task = g_task_new(NULL, cancellable, callback, user_data);
	g_task_set_task_data(task, get_updates, pui_get_updates_free);

	/* check whether to refresh the cache before checking for updates */
	g_debug("getting the time since the cache was last refreshed");
	pk_control_get_time_since_action_async(pk_control,
	    PK_ROLE_ENUM_REFRESH_CACHE, cancellable,
	    on_get_time_since_refresh_finished, task);
}

GPtrArray *
pui_get_updates_finish(GAsyncResult *result, GError **errorp)
{
	return (g_task_propagate_pointer(G_TASK(result), errorp));
}