tools/polkit-test.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdio.h>
  27 #include <errno.h>
  28
  29 #include <string.h>
  30 #include <signal.h>
  31
  32 #include <dbus/dbus.h>
  33
  34 static volatile sig_atomic_t __io_terminate = 0;
  35
  36 static void sig_term(int sig)
  37 {
  38         __io_terminate = 1;
  39 }
  40
  41 static void add_dict_with_string_value(DBusMessageIter *iter,
  42                                         const char *key, const char *str)
  43 {
  44         DBusMessageIter dict, entry, value;
  45
  46         dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
  47                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
  48                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
  49                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
  50         dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
  51                                                                 NULL, &entry);
  52
  53         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
  54
  55         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
  56                                         DBUS_TYPE_STRING_AS_STRING, &value);
  57         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &str);
  58         dbus_message_iter_close_container(&entry, &value);
  59
  60         dbus_message_iter_close_container(&dict, &entry);
  61         dbus_message_iter_close_container(iter, &dict);
  62 }
  63
  64 static void add_empty_string_dict(DBusMessageIter *iter)
  65 {
  66         DBusMessageIter dict;
  67
  68         dbus_message_iter_open_container(iter, DBUS_TYPE_ARRAY,
  69                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
  70                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_STRING_AS_STRING
  71                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
  72
  73         dbus_message_iter_close_container(iter, &dict);
  74 }
  75
  76 static void add_arguments(DBusConnection *conn, DBusMessageIter *iter)
  77 {
  78         const char *busname = dbus_bus_get_unique_name(conn);
  79         const char *kind = "system-bus-name";
  80         const char *action = "org.freedesktop.policykit.exec";
  81         const char *cancel = "";
  82         dbus_uint32_t flags = 0x00000001;
  83         DBusMessageIter subject;
  84
  85         dbus_message_iter_open_container(iter, DBUS_TYPE_STRUCT,
  86                                                         NULL, &subject);
  87         dbus_message_iter_append_basic(&subject, DBUS_TYPE_STRING, &kind);
  88         add_dict_with_string_value(&subject, "name", busname);
  89         dbus_message_iter_close_container(iter, &subject);
  90
  91         dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &action);
  92         add_empty_string_dict(iter);
  93         dbus_message_iter_append_basic(iter, DBUS_TYPE_UINT32, &flags);
  94         dbus_message_iter_append_basic(iter, DBUS_TYPE_STRING, &cancel);
  95 }
  96
  97 static void print_arguments(DBusMessageIter *iter)
  98 {
  99         DBusMessageIter result;
 100         dbus_bool_t authorized, challenge;
 101
 102         dbus_message_iter_recurse(iter, &result);
 103
 104         dbus_message_iter_get_basic(&result, &authorized);
 105         dbus_message_iter_get_basic(&result, &challenge);
 106
 107         printf("Authorized %d (Challenge %d)\n", authorized, challenge);
 108 }
 109
 110 #define AUTHORITY_DBUS  "org.freedesktop.PolicyKit1"
 111 #define AUTHORITY_INTF  "org.freedesktop.PolicyKit1.Authority"
 112 #define AUTHORITY_PATH  "/org/freedesktop/PolicyKit1/Authority"
 113
 114 static int check_authorization(DBusConnection *conn)
 115 {
 116         DBusMessage *msg, *reply;
 117         DBusMessageIter iter;
 118         DBusError err;
 119
 120         msg = dbus_message_new_method_call(AUTHORITY_DBUS, AUTHORITY_PATH,
 121                                 AUTHORITY_INTF, "CheckAuthorization");
 122         if (!msg) {
 123                 fprintf(stderr, "Can't allocate new method call\n");
 124                 return -ENOMEM;
 125         }
 126
 127         dbus_message_iter_init_append(msg, &iter);
 128         add_arguments(conn, &iter);
 129
 130         dbus_error_init(&err);
 131
 132         reply = dbus_connection_send_with_reply_and_block(conn, msg, -1, &err);
 133
 134         dbus_message_unref(msg);
 135
 136         if (!reply) {
 137                 if (dbus_error_is_set(&err)) {
 138                         fprintf(stderr, "%s\n", err.message);
 139                         dbus_error_free(&err);
 140                 } else
 141                         fprintf(stderr, "Can't check authorization\n");
 142                 return -EIO;
 143         }
 144
 145         if (dbus_message_has_signature(reply, "(bba{ss})") == TRUE) {
 146                 dbus_message_iter_init(reply, &iter);
 147                 print_arguments(&iter);
 148         }
 149
 150         dbus_message_unref(reply);
 151
 152         return 0;
 153 }
 154
 155 int main(int argc, char *argv[])
 156 {
 157         DBusConnection *conn;
 158         struct sigaction sa;
 159
 160         conn = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
 161         if (!conn) {
 162                 fprintf(stderr, "Can't get on system bus");
 163                 return 1;
 164         }
 165
 166         check_authorization(conn);
 167
 168         memset(&sa, 0, sizeof(sa));
 169         sa.sa_flags   = SA_NOCLDSTOP;
 170         sa.sa_handler = sig_term;
 171         sigaction(SIGTERM, &sa, NULL);
 172         sigaction(SIGINT,  &sa, NULL);
 173
 174 #if 0
 175         while (!__io_terminate) {
 176                 if (dbus_connection_read_write_dispatch(conn, 500) == FALSE)
 177                         break;
 178         }
 179 #endif
 180
 181         dbus_connection_unref(conn);
 182
 183         return 0;
 184 }