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 "package-manager-types.h"
  28 #include "pkgmgr_client_debug.h"
  29 #include "pkgmgr_client_internal.h"
  30 #include "../../installer/pkgmgr_installer.h"
  31 #include "../../installer/pkgmgr_installer_config.h"
  32
  33 #define CONNECTION_RETRY_MAX 5
  34 #define CONNECTION_WAIT_USEC (1000000 / 2) /* 0.5 sec */
  35 #define CONNECTION_TIMEOUT_MSEC 5000 /* 5 sec */
  36 #define REGULAR_USER 5000
  37
  38 static int _is_system_user(void)
  39 {
  40         uid_t uid = getuid();
  41
  42         if (uid < REGULAR_USER)
  43                 return 1;
  44         else
  45                 return 0;
  46 }
  47
  48 static GBusType __get_bus_type(pkgmgr_client_type type)
  49 {
  50         if (type == PC_REQUEST || _is_system_user())
  51                 return G_BUS_TYPE_SYSTEM;
  52         else
  53                 return G_BUS_TYPE_SESSION;
  54 }
  55
  56 int pkgmgr_client_connection_connect(struct pkgmgr_client_t *pc)
  57 {
  58         GError *error = NULL;
  59         GBusType bus_type;
  60
  61 #if !GLIB_CHECK_VERSION(2, 35, 0)
  62         g_type_init();
  63 #endif
  64         bus_type = __get_bus_type(pc->pc_type);
  65         pc->conn = g_bus_get_sync(bus_type, NULL, &error);
  66         if (error) {
  67                 ERR("gdbus connection error (%s)", error->message);
  68                 g_error_free(error);
  69                 return PKGMGR_R_ECOMM;
  70         }
  71
  72         return PKGMGR_R_OK;
  73 }
  74
  75 void pkgmgr_client_connection_disconnect(struct pkgmgr_client_t *pc)
  76 {
  77         /* flush remaining buffer: blocking mode */
  78         g_dbus_connection_flush_sync(pc->conn, NULL, NULL);
  79         g_object_unref(pc->conn);
  80         pc->conn = NULL;
  81 }
  82
  83 struct signal_map {
  84         const char *signal_str;
  85         int signal_type;
  86 };
  87
  88 struct signal_map map[] = {
  89         {PKGMGR_INSTALLER_INSTALL_EVENT_STR, PKGMGR_CLIENT_STATUS_INSTALL},
  90         {PKGMGR_INSTALLER_UNINSTALL_EVENT_STR, PKGMGR_CLIENT_STATUS_UNINSTALL},
  91         {PKGMGR_INSTALLER_UPGRADE_EVENT_STR, PKGMGR_CLIENT_STATUS_UPGRADE},
  92         {PKGMGR_INSTALLER_CLEAR_EVENT_STR, PKGMGR_CLIENT_STATUS_CLEAR_DATA},
  93         {PKGMGR_INSTALLER_MOVE_EVENT_STR, PKGMGR_CLIENT_STATUS_MOVE},
  94         {PKGMGR_INSTALLER_INSTALL_PERCENT_KEY_STR,
  95                 PKGMGR_CLIENT_STATUS_INSTALL_PROGRESS},
  96         {PKGMGR_INSTALLER_GET_SIZE_KEY_STR, PKGMGR_CLIENT_STATUS_GET_SIZE},
  97         {PKGMGR_INSTALLER_CLEAR_CACHE_KEY_STR,
  98                 PKGMGR_CLIENT_STATUS_CLEAR_CACHE},
  99         {PKGMGR_INSTALLER_APP_ENABLE_EVENT_STR,
 100                 PKGMGR_CLIENT_STATUS_ENABLE_APP},
 101         {PKGMGR_INSTALLER_APP_DISABLE_EVENT_STR,
 102                 PKGMGR_CLIENT_STATUS_DISABLE_APP},
 103         {PKGMGR_INSTALLER_APP_ENABLE_SPLASH_SCREEN_EVENT_STR,
 104                 PKGMGR_CLIENT_STATUS_ENABLE_APP_SPLASH_SCREEN},
 105         {PKGMGR_INSTALLER_APP_DISABLE_SPLASH_SCREEN_EVENT_STR,
 106                 PKGMGR_CLIENT_STATUS_DISABLE_APP_SPLASH_SCREEN},
 107         {PKGMGR_INSTALLER_RES_COPY_EVENT_STR, PKGMGR_CLIENT_STATUS_RES_COPY},
 108         {PKGMGR_INSTALLER_RES_REMOVE_EVENT_STR,
 109                 PKGMGR_CLIENT_STATUS_RES_REMOVE},
 110         {PKGMGR_INSTALLER_RES_UNINSTALL_EVENT_STR,
 111                 PKGMGR_CLIENT_STATUS_RES_UNINSTALL},
 112         {NULL, -1}
 113 };
 114
 115 static int __get_signal_type(const char *name)
 116 {
 117         int i;
 118
 119         if (name == NULL)
 120                 return -1;
 121
 122         for (i = 0; map[i].signal_str != NULL; i++) {
 123                 if (strcmp(map[i].signal_str, name) == 0)
 124                         return map[i].signal_type;
 125         }
 126
 127         return -1;
 128 }
 129
 130 static void __handle_size_info_callback(struct cb_info *cb_info,
 131                 const char *pkgid, const char *val)
 132 {
 133         pkg_size_info_t size_info;
 134         char buf[BUFMAX];
 135         char *saveptr;
 136         char *token;
 137         pkgmgr_total_pkg_size_info_receive_cb callback;
 138
 139         snprintf(buf, sizeof(buf), "%s", val);
 140
 141         DBG("%s, %s", pkgid, val);
 142
 143         token = strtok_r(buf, ":", &saveptr);
 144         if (token == NULL) {
 145                 ERR("failed to parse size info");
 146                 return;
 147         }
 148         size_info.data_size = atoll(token);
 149         token = strtok_r(NULL, ":", &saveptr);
 150         if (token == NULL) {
 151                 ERR("failed to parse size info");
 152                 return;
 153         }
 154         size_info.cache_size = atoll(token);
 155         token = strtok_r(NULL, ":", &saveptr);
 156         if (token == NULL) {
 157                 ERR("failed to parse size info");
 158                 return;
 159         }
 160         size_info.app_size = atoll(token);
 161         token = strtok_r(NULL, ":", &saveptr);
 162         if (token == NULL) {
 163                 ERR("failed to parse size info");
 164                 return;
 165         }
 166         size_info.ext_data_size = atoll(token);
 167         token = strtok_r(NULL, ":", &saveptr);
 168         if (token == NULL) {
 169                 ERR("failed to parse size info");
 170                 return;
 171         }
 172         size_info.ext_cache_size = atoll(token);
 173         token = strtok_r(NULL, ":", &saveptr);
 174         if (token == NULL) {
 175                 ERR("failed to parse size info");
 176                 return;
 177         }
 178         size_info.ext_app_size = atoll(token);
 179
 180         DBG("data: %lld, cache: %lld, app: %lld, ext_data: %lld, "
 181                         "ext_cache: %lld, ext_app: %lld",
 182                         size_info.data_size, size_info.cache_size,
 183                         size_info.app_size, size_info.ext_data_size,
 184                         size_info.ext_cache_size, size_info.ext_app_size);
 185
 186         if (strcmp(pkgid, PKG_SIZE_INFO_TOTAL) == 0) {
 187                 callback = (pkgmgr_total_pkg_size_info_receive_cb)
 188                         cb_info->size_info_cb;
 189                 callback(cb_info->client, &size_info, cb_info->data);
 190         } else {
 191                 cb_info->size_info_cb(cb_info->client, pkgid, &size_info,
 192                                 cb_info->data);
 193         }
 194 }
 195
 196 static void __handle_pkg_signal(const gchar *signal_name,
 197                 GVariant *parameters, gpointer user_data)
 198 {
 199         uid_t target_uid;
 200         char *req_id;
 201         char *pkg_type = NULL;
 202         char *appid = NULL;
 203         char *pkgid = NULL;
 204         char *key = NULL;
 205         char *val = NULL;
 206         struct cb_info *cb_info = (struct cb_info *)user_data;
 207         GVariantIter *iter = NULL;
 208         int signal_type;
 209
 210         g_variant_get(parameters, "(u&sa(sss)&s&s)", &target_uid, &req_id, &iter,
 211                         &key, &val);
 212         while (g_variant_iter_loop(iter, "(&s&s&s)", &pkgid, &appid, &pkg_type)) {
 213                 if (cb_info->req_key) {
 214                         if (strcmp(cb_info->req_key, req_id) != 0)
 215                                 continue;
 216                 } else {
 217                         signal_type = __get_signal_type(signal_name);
 218                         if (signal_type < 0 || !(cb_info->status_type & signal_type)) {
 219                                 g_variant_iter_free(iter);
 220                                 return;
 221                         }
 222                 }
 223
 224                 /* each cb_data can only has one callback */
 225                 if (cb_info->event_cb) {
 226                         cb_info->event_cb(target_uid, cb_info->req_id,
 227                                         pkg_type, pkgid, key, val, NULL, cb_info->data);
 228                 } else if (cb_info->app_event_cb && strcmp(appid, "") != 0) {
 229                         cb_info->app_event_cb(target_uid, cb_info->req_id,
 230                                         pkg_type, pkgid, appid, key, val, NULL,
 231                                         cb_info->data);
 232                 } else if (cb_info->size_info_cb) {
 233                         __handle_size_info_callback(cb_info, pkgid, val);
 234                 }
 235
 236                 /* TODO: unsubscribe request callback */
 237         }
 238         g_variant_iter_free(iter);
 239 }
 240
 241 static void __handle_res_copy_event_signal(const gchar *signal_name,
 242                 GVariant *parameters, gpointer user_data)
 243 {
 244         uid_t target_uid;
 245         char *req_id;
 246         char *pkgid = NULL;
 247         char *status = NULL;
 248         struct cb_info *cb_info = (struct cb_info *)user_data;
 249         int signal_type;
 250         GVariant *extra_param = NULL;
 251         pkgmgr_res_event_info_t event_info;
 252
 253         if (!cb_info->res_copy_event_cb)
 254                 return;
 255
 256         g_variant_get(parameters, "(u&s&s&sv)", &target_uid, &req_id, &pkgid, &status, &extra_param);
 257         if (!g_variant_type_equal(G_VARIANT_TYPE("(i)"),
 258                         g_variant_get_type(extra_param))) {
 259                 ERR("invalid extra parameter");
 260                 g_variant_unref(extra_param);
 261                 return;
 262         }
 263         if (cb_info->req_key) {
 264                 if (strcmp(cb_info->req_key, req_id) != 0) {
 265                         g_variant_unref(extra_param);
 266                         return;
 267                 }
 268         } else {
 269                 signal_type = __get_signal_type(signal_name);
 270                 if (signal_type < 0 || !(cb_info->status_type & signal_type)) {
 271                         g_variant_unref(extra_param);
 272                         return;
 273                 }
 274         }
 275
 276         g_variant_get(extra_param, "(i)", &event_info.error_code);
 277         cb_info->res_copy_event_cb(target_uid, cb_info->req_id, pkgid, signal_name,
 278                         status, &event_info, cb_info->data);
 279         g_variant_unref(extra_param);
 280 }
 281
 282 static void __signal_handler(GDBusConnection *conn, const gchar *sender_name,
 283                 const gchar *object_path, const gchar *interface_name,
 284                 const gchar *signal_name, GVariant *parameters,
 285                 gpointer user_data)
 286 {
 287         if (g_variant_type_equal(G_VARIANT_TYPE("(usa(sss)ss)"),
 288                         g_variant_get_type(parameters))) {
 289                 __handle_pkg_signal(signal_name, parameters, user_data);
 290         } else if (!strcmp(signal_name, PKGMGR_INSTALLER_RES_COPY_EVENT_STR) ||
 291                         !strcmp(signal_name, PKGMGR_INSTALLER_RES_REMOVE_EVENT_STR) ||
 292                         !strcmp(signal_name, PKGMGR_INSTALLER_RES_UNINSTALL_EVENT_STR)) {
 293                 __handle_res_copy_event_signal(signal_name, parameters, user_data);
 294         }
 295 }
 296
 297 static void __set_signal_list(int event, GList **signal_list)
 298 {
 299         int i;
 300         if (event == PKGMGR_CLIENT_STATUS_ALL)
 301                 return;
 302
 303         for (i = 0; map[i].signal_str != NULL; i++) {
 304                 if (event & map[i].signal_type)
 305                         *signal_list = g_list_append(*signal_list,
 306                                         (char *)map[i].signal_str);
 307         }
 308 }
 309
 310 static int __subscribe_signal(struct pkgmgr_client_t *pc,
 311                 struct cb_info *cb_info, const char *signal)
 312 {
 313         guint sid = g_dbus_connection_signal_subscribe(pc->conn, NULL,
 314                         PKGMGR_INSTALLER_DBUS_INTERFACE, signal,
 315                         PKGMGR_INSTALLER_DBUS_OBJECT_PATH, NULL,
 316                         G_DBUS_SIGNAL_FLAGS_NONE, __signal_handler,
 317                         (gpointer)cb_info, NULL);
 318         if (!sid) {
 319                 ERR("failed to subscribe singal");
 320                 return PKGMGR_R_ERROR;
 321         }
 322         cb_info->sid_list = g_list_append(cb_info->sid_list,
 323                         GUINT_TO_POINTER(sid));
 324
 325         return PKGMGR_R_OK;
 326 }
 327
 328 int pkgmgr_client_connection_set_callback(struct pkgmgr_client_t *pc,
 329                 struct cb_info *cb_info)
 330 {
 331         GList *signal_list = NULL;
 332         GList *tmp_list = NULL;
 333         int ret;
 334         char *signal_type;
 335         __set_signal_list(pc->status_type, &signal_list);
 336
 337         if (g_list_length(signal_list) == 0)
 338                 return __subscribe_signal(pc, cb_info, NULL);
 339
 340         for (tmp_list = signal_list; tmp_list != NULL;
 341                         tmp_list = g_list_next(tmp_list)) {
 342                 signal_type = (char *)tmp_list->data;
 343                 ret = __subscribe_signal(pc, cb_info, signal_type);
 344                 if (ret != 0) {
 345                         g_list_free(signal_list);
 346                         return PKGMGR_R_ERROR;
 347                 }
 348         }
 349
 350         g_list_free(signal_list);
 351         return PKGMGR_R_OK;
 352 }
 353
 354 void pkgmgr_client_connection_unset_callback(struct pkgmgr_client_t *pc,
 355                 struct cb_info *cb_info)
 356 {
 357         GList *tmp = NULL;
 358         guint tmp_sid;
 359         for (tmp = cb_info->sid_list; tmp != NULL; tmp = g_list_next(tmp)) {
 360                 tmp_sid = GPOINTER_TO_UINT(tmp->data);
 361                 g_dbus_connection_signal_unsubscribe(pc->conn, tmp_sid);
 362         }
 363 }
 364
 365 int pkgmgr_client_connection_send_request(struct pkgmgr_client_t *pc,
 366                 const char *method, GVariant *params, GVariant **result)
 367 {
 368         GError *error = NULL;
 369         GDBusProxy *proxy;
 370         GVariant *r = NULL;
 371         int retry_cnt = 0;
 372         int ret = PKGMGR_R_ECOMM;
 373
 374         /* convert floating ref into normal ref */
 375         g_variant_ref_sink(params);
 376
 377         do {
 378                 proxy = g_dbus_proxy_new_sync(pc->conn,
 379                                 G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
 380                                 NULL, PKGMGR_DBUS_SERVICE,
 381                                 PKGMGR_DBUS_OBJECT_PATH,
 382                                 PKGMGR_DBUS_INTERFACE, NULL, &error);
 383                 if (proxy == NULL) {
 384                         ERR("failed to get proxy object, sleep and retry[%s]",
 385                                         error->message);
 386                         g_error_free(error);
 387                         error = NULL;
 388                         usleep(CONNECTION_WAIT_USEC);
 389                         retry_cnt++;
 390                         continue;
 391                 }
 392
 393                 r = g_dbus_proxy_call_sync(proxy, method, params,
 394                                 G_DBUS_CALL_FLAGS_NONE,
 395                                 CONNECTION_TIMEOUT_MSEC, NULL, &error);
 396                 g_object_unref(proxy);
 397                 if (error && error->code == G_DBUS_ERROR_ACCESS_DENIED) {
 398                         ERR("failed to send request, privilege denied[%s]",
 399                                         error->message);
 400                         g_error_free(error);
 401                         ret = PKGMGR_R_EPRIV;
 402                         break;
 403                 }
 404                 if (r) {
 405                         *result = r;
 406                         ret = PKGMGR_R_OK;
 407                         break;
 408                 }
 409
 410                 ERR("failed to send request, sleep and retry[%s]",
 411                                 error->message);
 412                 g_error_free(error);
 413                 error = NULL;
 414                 usleep(CONNECTION_WAIT_USEC);
 415                 retry_cnt++;
 416         } while (retry_cnt <= CONNECTION_RETRY_MAX);
 417
 418         /* decrease ref count to 0 to free resource */
 419         g_variant_unref(params);
 420
 421         return ret;
 422 }