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/* -*- mode: C; c-file-style: "gnu" -*- */
/* activation.c Activation of services
*
* Copyright (C) 2003 CodeFactory AB
*
* Licensed under the Academic Free License version 1.2
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include "activation.h"
#include "desktop-file.h"
#include "utils.h"
#include <dbus/dbus-internals.h>
#include <dbus/dbus-hash.h>
#include <sys/types.h>
#include <dirent.h>
#include <errno.h>
#define DBUS_SERVICE_SECTION "D-BUS Service"
#define DBUS_SERVICE_NAME "Name"
#define DBUS_SERVICE_EXEC "Exec"
static DBusHashTable *activation_entries = NULL;
static char *server_address = NULL;
typedef struct
{
char *name;
char *exec;
} BusActivationEntry;
static DBusHashTable *pending_activations = NULL;
typedef struct
{
char *service;
} BusPendingActivation;
static void
bus_activation_entry_free (BusActivationEntry *entry)
{
if (!entry)
return;
dbus_free (entry->name);
dbus_free (entry->exec);
}
static dbus_bool_t
add_desktop_file_entry (BusDesktopFile *desktop_file)
{
char *name, *exec;
BusActivationEntry *entry;
if (!bus_desktop_file_get_string (desktop_file,
DBUS_SERVICE_SECTION,
DBUS_SERVICE_NAME,
&name))
{
_dbus_verbose ("No \""DBUS_SERVICE_NAME"\" key in .service file\n");
return FALSE;
}
if (!bus_desktop_file_get_string (desktop_file,
DBUS_SERVICE_SECTION,
DBUS_SERVICE_EXEC,
&exec))
{
_dbus_verbose ("No \""DBUS_SERVICE_EXEC"\" key in .service file\n");
dbus_free (name);
return FALSE;
}
if (_dbus_hash_table_lookup_string (activation_entries, name))
{
_dbus_verbose ("Service %s already exists in activation entry list\n", name);
dbus_free (name);
dbus_free (exec);
return FALSE;
}
BUS_HANDLE_OOM (entry = dbus_malloc0 (sizeof (BusActivationEntry)));
entry->name = name;
entry->exec = exec;
BUS_HANDLE_OOM (_dbus_hash_table_insert_string (activation_entries, entry->name, entry));
_dbus_verbose ("Added \"%s\" to list of services\n", entry->name);
return TRUE;
}
static void
load_directory (const char *directory)
{
DBusDirIter *iter;
DBusString dir, filename;
DBusResultCode result;
_dbus_string_init_const (&dir, directory);
iter = _dbus_directory_open (&dir, &result);
if (iter == NULL)
{
_dbus_verbose ("Failed to open directory %s: &s\n", directory,
result);
return;
}
BUS_HANDLE_OOM (_dbus_string_init (&filename, _DBUS_INT_MAX));
/* Now read the files */
while (_dbus_directory_get_next_file (iter, &filename, &result))
{
DBusString full_path;
BusDesktopFile *desktop_file;
DBusError error;
if (!_dbus_string_ends_with_c_str (&filename, ".service"))
{
const char *filename_c;
_dbus_string_get_const_data (&filename, &filename_c);
_dbus_verbose ("Skipping non-.service file %s\n",
filename_c);
continue;
}
BUS_HANDLE_OOM (_dbus_string_init (&full_path, _DBUS_INT_MAX));
BUS_HANDLE_OOM (_dbus_string_append (&full_path, directory));
BUS_HANDLE_OOM (_dbus_concat_dir_and_file (&full_path, &filename));
desktop_file = bus_desktop_file_load (&full_path, &error);
if (!desktop_file)
{
const char *full_path_c;
_dbus_string_get_const_data (&full_path, &full_path_c);
_dbus_verbose ("Could not load %s: %s\n", full_path_c,
error.message);
dbus_error_free (&error);
_dbus_string_free (&full_path);
continue;
}
if (!add_desktop_file_entry (desktop_file))
{
const char *full_path_c;
_dbus_string_get_const_data (&full_path, &full_path_c);
_dbus_verbose ("Could not add %s to activation entry list.\n", full_path_c);
}
bus_desktop_file_free (desktop_file);
_dbus_string_free (&full_path);
}
}
void
bus_activation_init (const char *address,
const char **directories)
{
int i;
/* FIXME: We should split up the server addresses. */
BUS_HANDLE_OOM (server_address = _dbus_strdup (address));
BUS_HANDLE_OOM (activation_entries = _dbus_hash_table_new (DBUS_HASH_STRING, NULL,
(DBusFreeFunction)bus_activation_entry_free));
i = 0;
/* Load service files */
while (directories[i] != NULL)
{
load_directory (directories[i]);
i++;
}
}
static void
child_setup (void *data)
{
/* FIXME: Check return value in case of OOM */
_dbus_setenv ("DBUS_ADDRESS", server_address);
}
dbus_bool_t
bus_activation_activate_service (const char *service_name,
DBusError *error)
{
BusActivationEntry *entry;
char *argv[2];
entry = _dbus_hash_table_lookup_string (activation_entries, service_name);
if (!entry)
{
dbus_set_error (error, DBUS_ERROR_ACTIVATE_SERVICE_NOT_FOUND,
"The service %s was not found in the activation entry list",
service_name);
return FALSE;
}
/* Now try to spawn the process */
argv[0] = entry->exec;
argv[1] = NULL;
if (!_dbus_spawn_async (argv,
child_setup, NULL,
error))
return FALSE;
return TRUE;
}
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