client/src/pkgmgr_client_connection.c

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd. All rights reserved.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <sys/types.h>
  21 #include <unistd.h>
  22
  23 #include <glib.h>
  24 #include <gio/gio.h>
  25
  26 #include "package-manager.h"
  27 #include "pkgmgr_client_debug.h"
  28 #include "pkgmgr_client_internal.h"
  29 #include "../../installer/pkgmgr_installer.h"
  30 #include "../../installer/pkgmgr_installer_config.h"
  31
  32 #define CONNECTION_RETRY_MAX 5
  33 #define CONNECTION_WAIT_USEC (1000000 / 2) /* 0.5 sec */
  34 #define REGULAR_USER 5000
  35
  36 static int _is_system_user(void)
  37 {
  38         uid_t uid = getuid();
  39
  40         if (uid < REGULAR_USER)
  41                 return 1;
  42         else
  43                 return 0;
  44 }
  45
  46 static GBusType __get_bus_type(pkgmgr_client_type type)
  47 {
  48         if (type == PC_REQUEST || _is_system_user())
  49                 return G_BUS_TYPE_SYSTEM;
  50         else
  51                 return G_BUS_TYPE_SESSION;
  52 }
  53
  54 int pkgmgr_client_connection_connect(struct pkgmgr_client_t *pc)
  55 {
  56         GError *error = NULL;
  57         GBusType bus_type;
  58
  59 #if !GLIB_CHECK_VERSION(2, 35, 0)
  60         g_type_init();
  61 #endif
  62         bus_type = __get_bus_type(pc->pc_type);
  63         pc->conn = g_bus_get_sync(bus_type, NULL, &error);
  64         if (error) {
  65                 ERR("gdbus connection error (%s)", error->message);
  66                 g_error_free(error);
  67                 return PKGMGR_R_ECOMM;
  68         }
  69
  70         return PKGMGR_R_OK;
  71 }
  72
  73 void pkgmgr_client_connection_disconnect(struct pkgmgr_client_t *pc)
  74 {
  75         /* flush remaining buffer: blocking mode */
  76         g_dbus_connection_flush_sync(pc->conn, NULL, NULL);
  77         g_object_unref(pc->conn);
  78         pc->conn = NULL;
  79 }
  80
  81 struct signal_map {
  82         const char *signal_str;
  83         int signal_type;
  84 };
  85
  86 struct signal_map map[] = {
  87         {PKGMGR_INSTALLER_INSTALL_EVENT_STR, PKGMGR_CLIENT_STATUS_INSTALL},
  88         {PKGMGR_INSTALLER_UNINSTALL_EVENT_STR, PKGMGR_CLIENT_STATUS_UNINSTALL},
  89         {PKGMGR_INSTALLER_UPGRADE_EVENT_STR, PKGMGR_CLIENT_STATUS_UPGRADE},
  90         {PKGMGR_INSTALLER_CLEAR_EVENT_STR, PKGMGR_CLIENT_STATUS_CLEAR_DATA},
  91         {PKGMGR_INSTALLER_MOVE_EVENT_STR, PKGMGR_CLIENT_STATUS_MOVE},
  92         {PKGMGR_INSTALLER_INSTALL_PERCENT_KEY_STR,
  93                 PKGMGR_CLIENT_STATUS_INSTALL_PROGRESS},
  94         {PKGMGR_INSTALLER_GET_SIZE_KEY_STR, PKGMGR_CLIENT_STATUS_GET_SIZE},
  95         {PKGMGR_INSTALLER_APP_ENABLE_EVENT_STR,
  96                 PKGMGR_CLIENT_STATUS_ENABLE_APP},
  97         {PKGMGR_INSTALLER_APP_DISABLE_EVENT_STR,
  98                 PKGMGR_CLIENT_STATUS_DISABLE_APP},
  99         {PKGMGR_INSTALLER_APP_ENABLE_SPLASH_SCREEN_EVENT_STR,
 100                 PKGMGR_CLIENT_STATUS_ENABLE_APP_SPLASH_SCREEN},
 101         {PKGMGR_INSTALLER_APP_DISABLE_SPLASH_SCREEN_EVENT_STR,
 102                 PKGMGR_CLIENT_STATUS_DISABLE_APP_SPLASH_SCREEN},
 103         {NULL, -1}
 104 };
 105
 106 static int __get_signal_type(const char *name)
 107 {
 108         int i;
 109
 110         if (name == NULL)
 111                 return -1;
 112
 113         for (i = 0; map[i].signal_str != NULL; i++) {
 114                 if (strcmp(map[i].signal_str, name) == 0)
 115                         return map[i].signal_type;
 116         }
 117
 118         return -1;
 119 }
 120
 121 static void __handle_size_info_callback(struct cb_info *cb_info,
 122                 const char *pkgid, const char *val)
 123 {
 124         pkg_size_info_t size_info;
 125         char buf[BUFMAX];
 126         char *saveptr;
 127         char *token;
 128         pkgmgr_total_pkg_size_info_receive_cb callback;
 129
 130         snprintf(buf, sizeof(buf), "%s", val);
 131
 132         DBG("%s, %s", pkgid, val);
 133
 134         token = strtok_r(buf, ":", &saveptr);
 135         if (token == NULL) {
 136                 ERR("failed to parse size info");
 137                 return;
 138         }
 139         size_info.data_size = atoll(token);
 140         token = strtok_r(NULL, ":", &saveptr);
 141         if (token == NULL) {
 142                 ERR("failed to parse size info");
 143                 return;
 144         }
 145         size_info.cache_size = atoll(token);
 146         token = strtok_r(NULL, ":", &saveptr);
 147         if (token == NULL) {
 148                 ERR("failed to parse size info");
 149                 return;
 150         }
 151         size_info.app_size = atoll(token);
 152         token = strtok_r(NULL, ":", &saveptr);
 153         if (token == NULL) {
 154                 ERR("failed to parse size info");
 155                 return;
 156         }
 157         size_info.ext_data_size = atoll(token);
 158         token = strtok_r(NULL, ":", &saveptr);
 159         if (token == NULL) {
 160                 ERR("failed to parse size info");
 161                 return;
 162         }
 163         size_info.ext_cache_size = atoll(token);
 164         token = strtok_r(NULL, ":", &saveptr);
 165         if (token == NULL) {
 166                 ERR("failed to parse size info");
 167                 return;
 168         }
 169         size_info.ext_app_size = atoll(token);
 170
 171         DBG("data: %lld, cache: %lld, app: %lld, ext_data: %lld, "
 172                         "ext_cache: %lld, ext_app: %lld",
 173                         size_info.data_size, size_info.cache_size,
 174                         size_info.app_size, size_info.ext_data_size,
 175                         size_info.ext_cache_size, size_info.ext_app_size);
 176
 177         if (strcmp(pkgid, PKG_SIZE_INFO_TOTAL) == 0) {
 178                 callback = (pkgmgr_total_pkg_size_info_receive_cb)
 179                         cb_info->size_info_cb;
 180                 callback(cb_info->client, &size_info, cb_info->data);
 181         } else {
 182                 cb_info->size_info_cb(cb_info->client, pkgid, &size_info,
 183                                 cb_info->data);
 184         }
 185 }
 186
 187 static void __signal_handler(GDBusConnection *conn, const gchar *sender_name,
 188                 const gchar *object_path, const gchar *interface_name,
 189                 const gchar *signal_name, GVariant *parameters,
 190                 gpointer user_data)
 191 {
 192         uid_t target_uid;
 193         char *req_id;
 194         char *pkg_type = NULL;
 195         char *pkgid = NULL;
 196         char *key = NULL;
 197         char *val = NULL;
 198         char *appid = NULL;
 199         int signal_type;
 200         struct cb_info *cb_info = (struct cb_info *)user_data;
 201
 202         g_variant_get(parameters, "(u&s&s&s&s&s&s)",
 203                         &target_uid, &req_id, &pkg_type,
 204                         &pkgid, &appid, &key, &val);
 205
 206         /* in case of request, check reqkey */
 207         if (cb_info->req_key) {
 208                 if (strcmp(cb_info->req_key, req_id) != 0)
 209                         return;
 210         } else {
 211                 signal_type = __get_signal_type(signal_name);
 212                 if (signal_type < 0 || !(cb_info->status_type & signal_type))
 213                         return;
 214         }
 215
 216         /* each cb_data can only has one callback */
 217         if (cb_info->event_cb)
 218                 cb_info->event_cb(target_uid, cb_info->req_id,
 219                                 pkg_type, pkgid, key, val, NULL, cb_info->data);
 220         else if (cb_info->app_event_cb)
 221                 cb_info->app_event_cb(target_uid, cb_info->req_id,
 222                                 pkg_type, pkgid, appid, key, val, NULL,
 223                                 cb_info->data);
 224         else if (cb_info->size_info_cb)
 225                 __handle_size_info_callback(cb_info, pkgid, val);
 226
 227         /* for request, unsubscribe if end signal received */
 228         if (cb_info->req_key &&
 229                         (strcmp(key, "end") == 0 || strcmp(val, "end") == 0)) {
 230                 g_dbus_connection_signal_unsubscribe(cb_info->client->conn,
 231                                 cb_info->sid);
 232                 cb_info->client->cb_info_list = g_list_remove(
 233                                 cb_info->client->cb_info_list,
 234                                 cb_info);
 235                 free(cb_info->req_key);
 236                 free(cb_info);
 237         }
 238 }
 239
 240 int pkgmgr_client_connection_set_callback(struct pkgmgr_client_t *pc,
 241                 struct cb_info *cb_info)
 242 {
 243         cb_info->sid = g_dbus_connection_signal_subscribe(pc->conn, NULL,
 244                         PKGMGR_INSTALLER_DBUS_INTERFACE, NULL,
 245                         PKGMGR_INSTALLER_DBUS_OBJECT_PATH, NULL,
 246                         G_DBUS_SIGNAL_FLAGS_NONE, __signal_handler,
 247                         (gpointer)cb_info, NULL);
 248         if (!cb_info->sid) {
 249                 ERR("failed to subscribe singal");
 250                 return PKGMGR_R_ERROR;
 251         }
 252
 253         return PKGMGR_R_OK;
 254 }
 255
 256 void pkgmgr_client_connection_unset_callback(struct pkgmgr_client_t *pc,
 257                 struct cb_info *cb_info)
 258 {
 259         g_dbus_connection_signal_unsubscribe(pc->conn, cb_info->sid);
 260 }
 261
 262 int pkgmgr_client_connection_send_request(struct pkgmgr_client_t *pc,
 263                 const char *method, GVariant *params, GVariant **result)
 264 {
 265         GError *error = NULL;
 266         GDBusProxy *proxy;
 267         GVariant *r = NULL;
 268         int retry_cnt = 0;
 269         int ret = PKGMGR_R_ECOMM;
 270
 271         /* convert floating ref into normal ref */
 272         g_variant_ref_sink(params);
 273
 274         do {
 275                 proxy = g_dbus_proxy_new_sync(pc->conn, G_DBUS_PROXY_FLAGS_NONE,
 276                                 NULL, PKGMGR_DBUS_SERVICE,
 277                                 PKGMGR_DBUS_OBJECT_PATH,
 278                                 PKGMGR_DBUS_INTERFACE, NULL, &error);
 279                 if (proxy == NULL) {
 280                         ERR("failed to get proxy object, sleep and retry[%s]",
 281                                         error->message);
 282                         g_error_free(error);
 283                         error = NULL;
 284                         usleep(CONNECTION_WAIT_USEC);
 285                         retry_cnt++;
 286                         continue;
 287                 }
 288
 289                 r = g_dbus_proxy_call_sync(proxy, method, params,
 290                                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
 291                 g_object_unref(proxy);
 292                 if (error && error->code == G_DBUS_ERROR_ACCESS_DENIED) {
 293                         ERR("failed to send request, privilege denied[%s]",
 294                                         error->message);
 295                         g_error_free(error);
 296                         ret = PKGMGR_R_EPRIV;
 297                         break;
 298                 }
 299                 if (r) {
 300                         *result = r;
 301                         ret = PKGMGR_R_OK;
 302                         break;
 303                 }
 304
 305                 ERR("failed to send request, sleep and retry[%s]",
 306                                 error->message);
 307                 g_error_free(error);
 308                 error = NULL;
 309                 usleep(CONNECTION_WAIT_USEC);
 310                 retry_cnt++;
 311         } while (retry_cnt <= CONNECTION_RETRY_MAX);
 312
 313         /* decrease ref count to 0 to free resource */
 314         g_variant_unref(params);
 315
 316         return ret;
 317 }