build: easier selection of session tracking

Using --with-session-tracking=xxx you can select the backend
you want from among CK, systemd, or none.

1 files changed, 0 insertions, 537 deletions

diff --git a/src/nm-session-monitor.c b/src/nm-session-monitor.c
deleted file mode 100644
index 9f05b99d7f..0000000000
--- a/src/nm-session-monitor.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
-/* This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * (C) Copyright 2008 - 2010 Red Hat, Inc.
- * Author: David Zeuthen <davidz@redhat.com>
- * Author: Dan Williams <dcbw@redhat.com>
- */
-
-#include "config.h"
-#include <errno.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <gio/gio.h>
-#include "nm-logging.h"
-
-#include "nm-session-utils.h"
-#include "nm-session-monitor.h"
-
-#define CKDB_PATH "/var/run/ConsoleKit/database"
-
-/* <internal>
- * SECTION:nm-session-monitor
- * @title: NMSessionMonitor
- * @short_description: Monitor sessions
- *
- * The #NMSessionMonitor class is a utility class to track and monitor sessions.
- */
-
-struct _NMSessionMonitor {
-	GObject parent_instance;
-
-	GKeyFile *database;
-	GFileMonitor *database_monitor;
-	time_t database_mtime;
-	GHashTable *sessions_by_uid;
-	GHashTable *sessions_by_user;
-};
-
-struct _NMSessionMonitorClass {
-	GObjectClass parent_class;
-
-	void (*changed) (NMSessionMonitor *monitor);
-};
-
-
-enum {
-	CHANGED,
-	LAST_SIGNAL,
-};
-static guint signals[LAST_SIGNAL] = {0};
-
-G_DEFINE_TYPE (NMSessionMonitor, nm_session_monitor, G_TYPE_OBJECT);
-
-/********************************************************************/
-
-typedef struct {
-	char *user;
-	uid_t uid;
-	gboolean local;
-	gboolean active;
-} Session;
-
-static void
-session_free (Session *s)
-{
-	g_free (s->user);
-	memset (s, 0, sizeof (Session));
-	g_free (s);
-}
-
-static gboolean
-check_key (GKeyFile *keyfile, const char *group, const char *key, GError **error)
-{
-	if (g_key_file_has_key (keyfile, group, key, error))
-		return TRUE;
-
-	if (!error) {
-		g_set_error (error,
-			         NM_SESSION_MONITOR_ERROR,
-			         NM_SESSION_MONITOR_ERROR_MALFORMED_DATABASE,
-			         "ConsoleKit database " CKDB_PATH " group '%s' had no '%s' key",
-			         group, key);
-	}
-	return FALSE;
-}
-
-static Session *
-session_new (GKeyFile *keyfile, const char *group, GError **error)
-{
-	GError *local = NULL;
-	Session *s;
-	const char *uname = NULL;
-
-	s = g_new0 (Session, 1);
-	g_assert (s);
-
-	s->uid = G_MAXUINT; /* paranoia */
-	if (!check_key (keyfile, group, "uid", &local))
-		goto error;
-	s->uid = (uid_t) g_key_file_get_integer (keyfile, group, "uid", &local);
-	if (local)
-		goto error;
-
-	if (!check_key (keyfile, group, "is_active", &local))
-		goto error;
-	s->active = g_key_file_get_boolean (keyfile, group, "is_active", &local);
-	if (local)
-		goto error;
-
-	if (!check_key (keyfile, group, "is_local", &local))
-		goto error;
-	s->local = g_key_file_get_boolean (keyfile, group, "is_local", &local);
-	if (local)
-		goto error;
-
-	if (!nm_session_uid_to_user (s->uid, &uname, error))
-		return FALSE;
-	s->user = g_strdup (uname);
-
-	return s;
-
-error:
-	session_free (s);
-	g_propagate_error (error, local);
-	return NULL;
-}
-
-static void
-session_merge (Session *src, Session *dest)
-{
-	g_return_if_fail (src != NULL);
-	g_return_if_fail (dest != NULL);
-
-	g_warn_if_fail (g_strcmp0 (src->user, dest->user) == 0);
-	g_warn_if_fail (src->uid == dest->uid);
-
-	dest->local = (dest->local || src->local);
-	dest->active = (dest->active || src->active);
-}
-
-/********************************************************************/
-
-static void
-free_database (NMSessionMonitor *self)
-{
-	if (self->database != NULL) {
-		g_key_file_free (self->database);
-		self->database = NULL;
-	}
-
-	g_hash_table_remove_all (self->sessions_by_uid);
-	g_hash_table_remove_all (self->sessions_by_user);
-}
-
-static gboolean
-reload_database (NMSessionMonitor *self, GError **error)
-{
-	struct stat statbuf;
-	char **groups = NULL;
-	gsize len = 0, i;
-	Session *s;
-
-	free_database (self);
-
-	errno = 0;
-	if (stat (CKDB_PATH, &statbuf) != 0) {
-		g_set_error (error,
-		             NM_SESSION_MONITOR_ERROR,
-		             errno == ENOENT ? NM_SESSION_MONITOR_ERROR_NO_DATABASE : NM_SESSION_MONITOR_ERROR_IO_ERROR,
-		             "Error statting file " CKDB_PATH ": %s",
-		             strerror (errno));
-		goto error;
-	}
-	self->database_mtime = statbuf.st_mtime;
-
-	self->database = g_key_file_new ();
-	if (!g_key_file_load_from_file (self->database, CKDB_PATH, G_KEY_FILE_NONE, error))
-		goto error;
-
-	groups = g_key_file_get_groups (self->database, &len);
-	if (!groups) {
-		g_set_error_literal (error,
-		                     NM_SESSION_MONITOR_ERROR,
-		                     NM_SESSION_MONITOR_ERROR_IO_ERROR,
-		                     "Could not load groups from " CKDB_PATH "");
-		goto error;
-	}
-
-	for (i = 0; i < len; i++) {
-		Session *found;
-
-		if (!g_str_has_prefix (groups[i], "Session "))
-			continue;
-
-		s = session_new (self->database, groups[i], error);
-		if (!s)
-			goto error;
-
-		found = g_hash_table_lookup (self->sessions_by_user, (gpointer) s->user);
-		if (found) {
-			session_merge (s, found);
-			session_free (s);
-		} else {
-			/* Entirely new user */
-			g_hash_table_insert (self->sessions_by_user, (gpointer) s->user, s);
-			g_hash_table_insert (self->sessions_by_uid, GUINT_TO_POINTER (s->uid), s);
-		}
-	}
-
-	g_strfreev (groups);
-	return TRUE;
-
-error:
-	if (groups)
-		g_strfreev (groups);
-	free_database (self);
-	return FALSE;
-}
-
-static gboolean
-ensure_database (NMSessionMonitor *self, GError **error)
-{
-	gboolean ret = FALSE;
-
-#if NO_CONSOLEKIT
-	return TRUE;
-#endif
-
-	if (self->database != NULL) {
-		struct stat statbuf;
-
-		errno = 0;
-		if (stat (CKDB_PATH, &statbuf) != 0) {
-			g_set_error (error,
-			             NM_SESSION_MONITOR_ERROR,
-			             errno == ENOENT ? NM_SESSION_MONITOR_ERROR_NO_DATABASE : NM_SESSION_MONITOR_ERROR_IO_ERROR,
-			             "Error statting file " CKDB_PATH " to check timestamp: %s",
-			             strerror (errno));
-			goto out;
-		}
-
-		if (statbuf.st_mtime == self->database_mtime) {
-			ret = TRUE;
-			goto out;
-		}
-	}
-
-	ret = reload_database (self, error);
-
-out:
-	return ret;
-}
-
-static void
-on_file_monitor_changed (GFileMonitor *    file_monitor,
-                         GFile *           file,
-                         GFile *           other_file,
-                         GFileMonitorEvent event_type,
-                         gpointer          user_data)
-{
-	NMSessionMonitor *self = NM_SESSION_MONITOR (user_data);
-
-	/* throw away cache */
-	free_database (self);
-
-	g_signal_emit (self, signals[CHANGED], 0);
-}
-
-static void
-nm_session_monitor_init (NMSessionMonitor *self)
-{
-	GError *error = NULL;
-	GFile *file;
-
-#if NO_CONSOLEKIT
-	return;
-#endif
-
-	/* Sessions-by-user is responsible for destroying the Session objects */
-	self->sessions_by_user = g_hash_table_new_full (g_str_hash, g_str_equal,
-	                                                NULL, (GDestroyNotify) session_free);
-	self->sessions_by_uid = g_hash_table_new (g_direct_hash, g_direct_equal);
-
-
-	error = NULL;
-	if (!ensure_database (self, &error)) {
-		/* Ignore the first error if the CK database isn't found yet */
-		if (g_error_matches (error,
-		                     NM_SESSION_MONITOR_ERROR,
-		                     NM_SESSION_MONITOR_ERROR_NO_DATABASE) == FALSE) {
-			nm_log_err (LOGD_CORE, "Error loading " CKDB_PATH ": %s", error->message);
-		}
-		g_error_free (error);
-	}
-
-	error = NULL;
-	file = g_file_new_for_path (CKDB_PATH);
-	self->database_monitor = g_file_monitor_file (file, G_FILE_MONITOR_NONE, NULL, &error);
-	g_object_unref (file);
-	if (self->database_monitor == NULL) {
-		nm_log_err (LOGD_CORE, "Error monitoring " CKDB_PATH ": %s", error->message);
-		g_error_free (error);
-	} else {
-		g_signal_connect (self->database_monitor,
-		                  "changed",
-		                  G_CALLBACK (on_file_monitor_changed),
-		                  self);
-	}
-}
-
-static void
-finalize (GObject *object)
-{
-	NMSessionMonitor *self = NM_SESSION_MONITOR (object);
-
-	if (self->database_monitor != NULL)
-		g_object_unref (self->database_monitor);
-
-	free_database (self);
-
-	if (G_OBJECT_CLASS (nm_session_monitor_parent_class)->finalize != NULL)
-		G_OBJECT_CLASS (nm_session_monitor_parent_class)->finalize (object);
-}
-
-static void
-nm_session_monitor_class_init (NMSessionMonitorClass *klass)
-{
-	GObjectClass *gobject_class;
-
-	gobject_class = G_OBJECT_CLASS (klass);
-
-	gobject_class->finalize = finalize;
-
-	/**
-	 * NMSessionMonitor::changed:
-	 * @monitor: A #NMSessionMonitor
-	 *
-	 * Emitted when something changes.
-	 */
-	signals[CHANGED] = g_signal_new (NM_SESSION_MONITOR_CHANGED,
-	                                 NM_TYPE_SESSION_MONITOR,
-	                                 G_SIGNAL_RUN_LAST,
-	                                 G_STRUCT_OFFSET (NMSessionMonitorClass, changed),
-	                                 NULL,                   /* accumulator      */
-	                                 NULL,                   /* accumulator data */
-	                                 g_cclosure_marshal_VOID__VOID,
-	                                 G_TYPE_NONE, 0);
-}
-
-NMSessionMonitor *
-nm_session_monitor_get (void)
-{
-	static NMSessionMonitor *singleton = NULL;
-
-	if (singleton)
-		return g_object_ref (singleton);
-
-	singleton = NM_SESSION_MONITOR (g_object_new (NM_TYPE_SESSION_MONITOR, NULL));
-	return singleton;
-}
-
-/* ---------------------------------------------------------------------------------------------------- */
-
-/**
- * nm_session_monitor_user_has_session:
- * @monitor: A #NMSessionMonitor.
- * @username: A username.
- * @error: Return location for error.
- *
- * Checks whether the given @username is logged into a session or not.
- *
- * Returns: %FALSE if @error is set otherwise %TRUE if the given @username is
- * currently logged into a session.
- */
-gboolean
-nm_session_monitor_user_has_session (NMSessionMonitor *monitor,
-                                     const char *username,
-                                     uid_t *out_uid,
-                                     GError **error)
-{
-	Session *s;
-
-#if NO_CONSOLEKIT
-	if (!user_to_uid (username, out_uid, error))
-		return FALSE;
-	return TRUE;
-#endif
-
-	if (!ensure_database (monitor, error))
-		return FALSE;
-
-	s = g_hash_table_lookup (monitor->sessions_by_user, (gpointer) username);
-	if (!s) {
-		g_set_error (error,
-		             NM_SESSION_MONITOR_ERROR,
-		             NM_SESSION_MONITOR_ERROR_UNKNOWN_USER,
-		             "No session found for user '%s'",
-		             username);
-		return FALSE;
-	}
-
-	if (out_uid)
-		*out_uid = s->uid;
-	return TRUE;
-}
-
-/**
- * nm_session_monitor_uid_has_session:
- * @monitor: A #NMSessionMonitor.
- * @uid: A user ID.
- * @error: Return location for error.
- *
- * Checks whether the given @uid is logged into a session or not.
- *
- * Returns: %FALSE if @error is set otherwise %TRUE if the given @uid is
- * currently logged into a session.
- */
-gboolean
-nm_session_monitor_uid_has_session (NMSessionMonitor *monitor,
-                                    uid_t uid,
-                                    const char **out_user,
-                                    GError **error)
-{
-	Session *s;
-
-#if NO_CONSOLEKIT
-	if (!uid_to_user (uid, out_user, error))
-		return FALSE;
-	return TRUE;
-#endif
-
-	if (!ensure_database (monitor, error))
-		return FALSE;
-
-	s = g_hash_table_lookup (monitor->sessions_by_uid, GUINT_TO_POINTER (uid));
-	if (!s) {
-		g_set_error (error,
-		             NM_SESSION_MONITOR_ERROR,
-		             NM_SESSION_MONITOR_ERROR_UNKNOWN_USER,
-		             "No session found for uid %d",
-		             uid);
-		return FALSE;
-	}
-
-	if (out_user)
-		*out_user = s->user;
-	return TRUE;
-}
-
-/**
- * nm_session_monitor_user_active:
- * @monitor: A #NMSessionMonitor.
- * @username: A username.
- * @error: Return location for error.
- *
- * Checks whether the given @username is logged into a active session or not.
- *
- * Returns: %FALSE if @error is set otherwise %TRUE if the given @username is
- * logged into an active session.
- */
-gboolean
-nm_session_monitor_user_active (NMSessionMonitor *monitor,
-                                const char *username,
-                                GError **error)
-{
-	Session *s;
-
-#if NO_CONSOLEKIT
-	return TRUE;
-#endif
-
-	if (!ensure_database (monitor, error))
-		return FALSE;
-
-	s = g_hash_table_lookup (monitor->sessions_by_user, (gpointer) username);
-	if (!s) {
-		g_set_error (error,
-		             NM_SESSION_MONITOR_ERROR,
-		             NM_SESSION_MONITOR_ERROR_UNKNOWN_USER,
-		             "No session found for user '%s'",
-		             username);
-		return FALSE;
-	}
-
-	return s->active;
-}
-
-/**
- * nm_session_monitor_uid_active:
- * @monitor: A #NMSessionMonitor.
- * @uid: A user ID.
- * @error: Return location for error.
- *
- * Checks whether the given @uid is logged into a active session or not.
- *
- * Returns: %FALSE if @error is set otherwise %TRUE if the given @uid is
- * logged into an active session.
- */
-gboolean
-nm_session_monitor_uid_active (NMSessionMonitor *monitor,
-                               uid_t uid,
-                               GError **error)
-{
-	Session *s;
-
-#if NO_CONSOLEKIT
-	return TRUE;
-#endif
-
-	if (!ensure_database (monitor, error))
-		return FALSE;
-
-	s = g_hash_table_lookup (monitor->sessions_by_uid, GUINT_TO_POINTER (uid));
-	if (!s) {
-		g_set_error (error,
-		             NM_SESSION_MONITOR_ERROR,
-		             NM_SESSION_MONITOR_ERROR_UNKNOWN_USER,
-		             "No session found for uid '%d'",
-		             uid);
-		return FALSE;
-	}
-
-	return s->active;
-}
-