src/eventsystem.c

   1 /**
   2  * event system low-level API
   3  */
   4 #include <stdio.h>
   5 #include <string.h>
   6 #include <stdlib.h>
   7 #include <dlog.h>
   8 #include <bundle.h>
   9 #include <bundle_internal.h>
  10 #include <glib.h>
  11 #include <gio/gio.h>
  12 #include <eventsystem.h>
  13 #include <fcntl.h>
  14
  15 #undef LOG_TAG
  16 #define LOG_TAG "eventsystem"
  17
  18 #define SYS_EVENT_NAME_PREFIX "tizen.system.event"
  19 #define EVENT_SYSTEM_PREFIX "eventsystem.id_"
  20 #define EVENT_SYSTEM_PREFIX_LEN 15
  21 #define EVENT_SYSTEM_MEMBER "eventsystem"
  22 #define VALID_COUNT_OF_EVENTNAME_TOKEN 3
  23 #define VALID_LAST_COUNT_FOR_EVENTNAME (VALID_COUNT_OF_EVENTNAME_TOKEN + 1)
  24 #define MAX_COUNT_FOR_EVENTNAME_CHECK (VALID_LAST_COUNT_FOR_EVENTNAME + 1)
  25
  26 #define FREE_AND_NULL(ptr) do { \
  27         if (ptr) { \
  28                 free((void *)ptr); \
  29                 ptr = NULL; \
  30         } \
  31 } while (0)
  32
  33 #define _E(fmt, arg...) LOGE(fmt, ##arg)
  34 #define _D(fmt, arg...) LOGD(fmt, ##arg)
  35 #define _W(fmt, arg...) LOGW(fmt, ##arg)
  36 #define _I(fmt, arg...) LOGI(fmt, ##arg)
  37
  38 #define retvm_if(expr, val, fmt, arg...) do { \
  39         if (expr) { \
  40                 _E(fmt, ##arg); \
  41                 _E("(%s) -> %s() return", #expr, __func__); \
  42                 return val; \
  43         } \
  44 } while (0)
  45
  46 #define retv_if(expr, val) do { \
  47         if (expr) { \
  48                 _E("(%s) -> %s() return", #expr, __func__); \
  49                 return val; \
  50         } \
  51 } while (0)
  52
  53 #define tryvm_if(expr, val, fmt, arg...) do { \
  54          if (expr) { \
  55                 _E("(%s) "fmt, #expr, ##arg); \
  56                 val; \
  57                 goto catch; \
  58         } \
  59 } while (0)
  60
  61 pthread_mutex_t send_sync_lock = PTHREAD_MUTEX_INITIALIZER;
  62
  63 static GList *system_event_list;
  64 static int _initialized;
  65 static GHashTable *check_tbl;
  66 static GHashTable *filter_tbl;
  67 static GHashTable *last_data_tbl;
  68
  69 struct last_data_item {
  70         char *event_name;
  71         GVariant *param;
  72         GVariant *trusted_param;
  73 };
  74
  75 typedef struct eventmap {
  76         char *event_name;
  77         char *interface_name;
  78         char *member_name;
  79         guint reg_id;
  80         GBusType bus_type;
  81         int event_type;
  82         union {
  83                 eventsystem_cb es_cb;
  84                 eventsystem_handler ep_cb;
  85         };
  86 } eventmap_s;
  87
  88 typedef struct eventinfo {
  89         char *event_name;
  90         char *destination_name;
  91         char *interface_name;
  92         char *object_path;
  93         char *member_name;
  94         bool is_user_event;
  95         bool is_trusted;
  96         bundle *event_data;
  97 } eventinfo_s;
  98
  99 typedef struct sysevent_info {
 100         guint owner_id;
 101         guint owner_id_session;
 102         char *own_name_system_bus;
 103         char *own_name_session_bus;
 104 } sysevent_info_s;
 105 static sysevent_info_s s_info;
 106
 107 static int __eventsystem_check_user_send_validation(const char *event_name);
 108 static int __eventsystem_requet_destination_list(const char *event_name, GList **dest_list);
 109 static int __eventsystem_check_sender_validation(int sender_pid,
 110                 const char *event_name, char **sender);
 111
 112 static int __event_compare_name_cb(gconstpointer a, gconstpointer b)
 113 {
 114         eventmap_s *key1 = (eventmap_s *)a;
 115         eventmap_s *key2 = (eventmap_s *)b;
 116         return strcmp(key1->interface_name, key2->interface_name) |
 117                         strcmp(key1->member_name, key2->member_name);
 118 }
 119
 120 static int __event_compare_reg_id_cb(gconstpointer a, gconstpointer b)
 121 {
 122         eventmap_s *key1 = (eventmap_s *)a;
 123         eventmap_s *key2 = (eventmap_s *)b;
 124         return !(key1->reg_id == key2->reg_id);
 125 }
 126
 127 static void __initialize(void)
 128 {
 129 #if (GLIB_MAJOR_VERSION <= 2 && GLIB_MINOR_VERSION < 36)
 130         g_type_init();
 131 #endif
 132
 133         _initialized = 1;
 134 }
 135
 136 static int __eventsystem_get_sender_pid(GDBusConnection *conn, const char *sender_name)
 137 {
 138         GDBusMessage *msg = NULL;
 139         GDBusMessage *reply = NULL;
 140         GError *err = NULL;
 141         GVariant *body;
 142         int pid = 0;
 143
 144         msg = g_dbus_message_new_method_call("org.freedesktop.DBus", "/org/freedesktop/DBus",
 145                 "org.freedesktop.DBus", "GetConnectionUnixProcessID");
 146         if (!msg) {
 147                 _E("Can't allocate new method call");
 148                 goto out;
 149         }
 150
 151         g_dbus_message_set_body(msg, g_variant_new("(s)", sender_name));
 152         reply = g_dbus_connection_send_message_with_reply_sync(conn, msg,
 153                 G_DBUS_SEND_MESSAGE_FLAGS_NONE, -1, NULL, NULL, &err);
 154
 155         if (!reply) {
 156                 if (err != NULL) {
 157                         _E("Failed to get pid [%s]", err->message);
 158                         g_error_free(err);
 159                 }
 160                 goto out;
 161         }
 162
 163         body = g_dbus_message_get_body(reply);
 164         g_variant_get(body, "(u)", &pid);
 165
 166 out:
 167         if (msg)
 168                 g_object_unref(msg);
 169         if (reply)
 170                 g_object_unref(reply);
 171
 172         return pid;
 173 }
 174
 175 static char *__get_object_path(char *interface_name)
 176 {
 177         int i;
 178         char *object_path = (char *)calloc(strlen(interface_name), sizeof(char) + 2);
 179
 180         if (object_path == NULL) {
 181                 _E("failed to allocate memory");
 182                 return NULL;
 183         }
 184
 185         object_path[0] = '/';
 186
 187         for (i = 0; interface_name[i]; i++) {
 188                 if (interface_name[i] == '.')
 189                         object_path[i + 1] = '/';
 190                 else
 191                         object_path[i + 1] = interface_name[i];
 192         }
 193
 194         return object_path;
 195 }
 196
 197 static char *__get_encoded_interface_name(char *interface_name)
 198 {
 199         char *evtid = NULL;
 200         int evtid_len = 0;
 201         gchar *encoded_value;
 202
 203         encoded_value = g_compute_checksum_for_string(G_CHECKSUM_MD5,
 204                 interface_name, strlen(interface_name));
 205
 206         evtid_len = EVENT_SYSTEM_PREFIX_LEN + strlen(encoded_value) + 1;
 207
 208         evtid = (char *)calloc(evtid_len, sizeof(char));
 209         if (evtid == NULL) {
 210                 _D("memory alloc failed");
 211                 g_free(encoded_value);
 212                 return NULL;
 213         }
 214
 215         snprintf(evtid, evtid_len, "%s%s", EVENT_SYSTEM_PREFIX, (char *)encoded_value);
 216
 217         g_free(encoded_value);
 218
 219         return evtid;
 220 }
 221
 222 static char *__get_member_name_from_eventname(char *event_name)
 223 {
 224         char *ptr = NULL;
 225         char *ptr_last = NULL;
 226         char *temp_name = NULL;
 227         char *member_name = NULL;
 228         char *save_ptr = NULL;
 229         int count = 0;
 230
 231         temp_name = strdup(event_name);
 232         if (temp_name == NULL) {
 233                 _E("out of memory");
 234                 return NULL;
 235         }
 236
 237         ptr = strtok_r(temp_name, ".", &save_ptr);
 238         if (ptr == NULL) {
 239                 _E("invalid event_name(%s), count(%d)", event_name, count);
 240                 FREE_AND_NULL(temp_name);
 241                 return NULL;
 242         }
 243         count++;
 244
 245         while (count < MAX_COUNT_FOR_EVENTNAME_CHECK) {
 246                 ptr = strtok_r(NULL, ".", &save_ptr);
 247                 if (ptr == NULL)
 248                         break;
 249                 /* _D("(%d)ptr(%s)(%d)", count, ptr, strlen(ptr)); */
 250                 ptr_last = ptr;
 251                 count++;
 252         }
 253
 254         if (count != VALID_LAST_COUNT_FOR_EVENTNAME) {
 255                 _E("invalid event_name(%s), count(%d)", event_name, count);
 256                 FREE_AND_NULL(temp_name);
 257                 return NULL;
 258         }
 259
 260         if (ptr_last) {
 261                 /* _D("new member_name(%s)(%d)", ptr_last, strlen(ptr_last)); */
 262                 member_name = strdup(ptr_last);
 263                 if (!member_name) {
 264                         _E("out_of_memory");
 265                         FREE_AND_NULL(temp_name);
 266                         return NULL;
 267                 }
 268         } else {
 269                 _E("ptr_last is NULL");
 270                 FREE_AND_NULL(temp_name);
 271                 return NULL;
 272         }
 273
 274         _D("member_name(%s)", member_name);
 275
 276         FREE_AND_NULL(temp_name);
 277         return member_name;
 278 }
 279
 280 static int __check_validation_usrevent_sender(int sender_pid,
 281                 const char *interface_name, const char *event_name)
 282 {
 283         char *sender_id = NULL;
 284         char *key = NULL;
 285         char *val = NULL;
 286
 287         if (__eventsystem_check_sender_validation(sender_pid,
 288                 event_name, &sender_id) < 0) {
 289                 _E("invalid user-event sender");
 290                 return ES_R_EINVAL;
 291         }
 292
 293         if (sender_id == NULL) {
 294                 _E("sender_id is null");
 295                 return ES_R_EINVAL;
 296         }
 297
 298         key = strdup(interface_name);
 299         if (key == NULL) {
 300                 _E("out of memory");
 301                 g_free(sender_id);
 302                 return ES_R_ENOMEM;
 303         }
 304
 305         val = strdup(sender_id);
 306         if (val == NULL) {
 307                 _E("out of memory");
 308                 free(key);
 309                 g_free(sender_id);
 310                 return ES_R_ENOMEM;
 311         }
 312
 313         g_hash_table_insert(filter_tbl, key, val);
 314         g_free(sender_id);
 315
 316         return ES_R_OK;
 317 }
 318
 319 static int __check_validation_user_defined_name(const char *event_name)
 320 {
 321         char *event_id = NULL;
 322         char *key = NULL;
 323         int ret = 1;
 324
 325         if (check_tbl == NULL)
 326                 check_tbl = g_hash_table_new(g_str_hash, g_str_equal);
 327
 328         event_id = (char *)g_hash_table_lookup(check_tbl, event_name);
 329         if (event_id == NULL) {
 330                 if (__eventsystem_check_user_send_validation(event_name) < 0) {
 331                         _E("invalid user-event name");
 332                         ret = 0;
 333                 } else {
 334                         key = strdup(event_name);
 335                         if (key == NULL) {
 336                                 _E("out_of_memory");
 337                                 ret = 0;
 338                         } else {
 339                                 g_hash_table_insert(check_tbl, key, key);
 340                         }
 341                 }
 342         }
 343
 344         return ret;
 345 }
 346
 347 static int __check_interface_validation_user(char *interface_name)
 348 {
 349         int len = strlen(EVENT_SYSTEM_PREFIX);
 350
 351         if (strncmp(interface_name, EVENT_SYSTEM_PREFIX, len) != 0)
 352                 return 0;
 353
 354         return 1;
 355 }
 356
 357 static int __check_eventname_validation_user(char *event_name)
 358 {
 359         int len = strlen(USER_EVENT_NAME_PREFIX);
 360
 361         if (strncmp(event_name, USER_EVENT_NAME_PREFIX, len) != 0)
 362                 return 0;
 363
 364         return 1;
 365 }
 366
 367 static int __check_eventname_validation_system(char *event_name)
 368 {
 369         int len = strlen(SYS_EVENT_NAME_PREFIX);
 370
 371         if (strncmp(event_name, SYS_EVENT_NAME_PREFIX, len) != 0)
 372                 return 0;
 373
 374         return 1;
 375 }
 376
 377 static int __get_gdbus_shared_connection(GDBusConnection **connection, GBusType bus_type,
 378                 eventsystem_event_type event_type)
 379 {
 380         GError *error = NULL;
 381         guint owner_id = 0;
 382         gchar *guid = NULL;
 383         char own_name[128] = {0, };
 384         GDBusConnection *conn_system = NULL;
 385
 386         if (!_initialized)
 387                 __initialize();
 388
 389         *connection = g_bus_get_sync(bus_type, NULL, &error);
 390         if (*connection == NULL) {
 391                 if (error != NULL) {
 392                         _E("Failed to get dbus [%s], bus_type [%d]",
 393                                 error->message, bus_type);
 394                         g_error_free(error);
 395                 }
 396                 return ES_R_ERROR;
 397         }
 398
 399         if (((bus_type == G_BUS_TYPE_SYSTEM && !s_info.owner_id) ||
 400                 (bus_type == G_BUS_TYPE_SESSION && !s_info.owner_id_session))) {
 401                 guid = g_dbus_generate_guid();
 402                 if (guid == NULL) {
 403                         _E("failed to get guid");
 404                         return ES_R_ERROR;
 405                 }
 406                 snprintf(own_name, 128, "%s.%s.id%s_%d_%d", "event.busname",
 407                         (bus_type == G_BUS_TYPE_SESSION ? "session" : "system"),
 408                         guid, getuid(), getpid());
 409                 g_free(guid);
 410
 411                 _D("bus_name is [%s]", own_name);
 412                 owner_id = g_bus_own_name_on_connection(*connection, own_name,
 413                         G_BUS_NAME_OWNER_FLAGS_NONE,
 414                         NULL, NULL, NULL, NULL);
 415                 if (!owner_id) {
 416                         _E("g_bus_own_name_on_connection, error");
 417                         return ES_R_ERROR;
 418                 }
 419
 420                 if (bus_type == G_BUS_TYPE_SESSION && event_type == ES_TYPE_USER) {
 421                         /* set same name on system-bus */
 422                         error = NULL;
 423                         conn_system = g_bus_get_sync(G_BUS_TYPE_SYSTEM, NULL, &error);
 424                         if (conn_system == NULL) {
 425                                 _E("failed to get system connection");
 426                                 if (error != NULL) {
 427                                         _E("error(%s)", error->message);
 428                                         g_error_free(error);
 429                                 }
 430                                 return ES_R_ERROR;
 431                         } else {
 432                                 owner_id = g_bus_own_name_on_connection(conn_system,
 433                                         own_name, G_BUS_NAME_OWNER_FLAGS_NONE,
 434                                         NULL, NULL, NULL, NULL);
 435                                 if (!owner_id) {
 436                                         _E("g_bus_own_name_on_connection(for system), error");
 437                                         g_object_unref(conn_system);
 438                                         return ES_R_ERROR;
 439                                 }
 440
 441                                 g_object_unref(conn_system);
 442                         }
 443                 }
 444
 445                 if (bus_type == G_BUS_TYPE_SESSION) {
 446                         s_info.owner_id_session = owner_id;
 447                         s_info.own_name_session_bus = strdup(own_name);
 448                         if (s_info.own_name_session_bus == NULL) {
 449                                 _E("out of memory");
 450                                 return ES_R_ERROR;
 451                         }
 452                 } else {
 453                         s_info.owner_id = owner_id;
 454                         s_info.own_name_system_bus = strdup(own_name);
 455                         if (s_info.own_name_system_bus == NULL) {
 456                                 _E("out of memory");
 457                                 return ES_R_ERROR;
 458                         }
 459                 }
 460         }
 461
 462         return ES_R_OK;
 463 }
 464
 465 static void __eventsystem_event_handler(GDBusConnection *connection,
 466                 const gchar *sender_name, const gchar *object_path,
 467                 const gchar *interface_name, const gchar *signal_name,
 468                 GVariant *parameters, gpointer user_data)
 469 {
 470         int len;
 471         eventmap_s em;
 472         GList *cb_list = NULL;
 473         bundle *buf = NULL;
 474         bundle_raw *raw = NULL;
 475
 476         em.interface_name = (char *)interface_name;
 477         em.member_name = (char *)signal_name;
 478
 479         _D("sender_name(%s), interface_name(%s), signal_name(%s)",
 480                 sender_name, interface_name, signal_name);
 481
 482         cb_list = g_list_find_custom(system_event_list, &em,
 483                 (GCompareFunc)__event_compare_name_cb);
 484         if (cb_list == NULL)
 485                 return;
 486
 487         g_variant_get(parameters, "(us)", &len, &raw);
 488
 489         buf = bundle_decode((bundle_raw *)raw, len);
 490
 491         em.event_name = ((eventmap_s *)cb_list->data)->event_name;
 492         em.ep_cb = ((eventmap_s *)cb_list->data)->ep_cb;
 493         if (em.ep_cb)
 494                 em.ep_cb(em.event_name, buf, user_data);
 495
 496         bundle_free_encoded_rawdata(&raw);
 497         bundle_free(buf);
 498 }
 499
 500 static void __eventsystem_application_event_handler(int sender_pid,
 501                 const gchar *interface_name, const gchar *signal_name,
 502                 GVariant *parameters, gpointer user_data)
 503 {
 504         GList *cb_list = NULL;
 505         eventmap_s em;
 506         bundle_raw *raw = NULL;
 507         int len;
 508
 509         em.interface_name = (char *)interface_name;
 510         em.member_name = (char *)signal_name;
 511
 512         cb_list = g_list_find_custom(system_event_list, &em,
 513                 (GCompareFunc)__event_compare_name_cb);
 514
 515         if (cb_list == NULL) {
 516                 _E("not interested event");
 517                 return;
 518         }
 519
 520         em.event_name = ((eventmap_s *)cb_list->data)->event_name;
 521
 522         if (sender_pid > 0 && __check_interface_validation_user((char *)interface_name)) {
 523                 if (__check_validation_usrevent_sender(sender_pid,
 524                         (const char *)interface_name, em.event_name) < 0) {
 525                         _E("invalid sender");
 526                         return;
 527                 }
 528         }
 529
 530         g_variant_get(parameters, "(us)", &len, &raw);
 531         em.es_cb = ((eventmap_s *)cb_list->data)->es_cb;
 532         if (em.es_cb)
 533                 em.es_cb(em.event_name, raw, len, user_data);
 534
 535         bundle_free_encoded_rawdata(&raw);
 536 }
 537
 538 /**
 539  * application-use filter for user-event
 540  */
 541 static void __eventsystem_filter_userevent_for_application(GDBusConnection *connection,
 542                 const gchar *sender_name, const gchar *object_path,
 543                 const gchar *interface_name, const gchar *signal_name,
 544                 GVariant *parameters, gpointer user_data)
 545 {
 546         char *sender_id = NULL;
 547         int sender_pid = -1;
 548
 549         _D("sender_name(%s), interface_name(%s)", sender_name, interface_name);
 550
 551         if (filter_tbl == NULL)
 552                 filter_tbl = g_hash_table_new(g_str_hash, g_str_equal);
 553
 554         sender_id = (char *)g_hash_table_lookup(filter_tbl, interface_name);
 555         if (sender_id == NULL) {
 556                 sender_pid = __eventsystem_get_sender_pid(connection, sender_name);
 557                 if (sender_pid <= 0) {
 558                         _E("failed to get pid of sender(%s)", sender_name);
 559                         return;
 560                 }
 561                 _D("sender_pid(%d)", sender_pid);
 562         }
 563
 564         __eventsystem_application_event_handler(sender_pid, interface_name,
 565                 signal_name, parameters, user_data);
 566 }
 567
 568 /**
 569  * application-use filter for system-event
 570  */
 571 static void __eventsystem_filter_sysevent_for_application(GDBusConnection *connection,
 572                 const gchar *sender_name, const gchar *object_path,
 573                 const gchar *interface_name, const gchar *signal_name,
 574                 GVariant *parameters, gpointer user_data)
 575 {
 576         _D("sender_name(%s), interface_name(%s)", sender_name, interface_name);
 577
 578         __eventsystem_application_event_handler(-1, interface_name,
 579                 signal_name, parameters, user_data);
 580 }
 581
 582 /**
 583  * internal-use filter for user-event
 584  */
 585 static void __eventsystem_filter_userevent_for_internal(GDBusConnection *connection,
 586                 const gchar *sender_name, const gchar *object_path,
 587                 const gchar *interface_name, const gchar *signal_name,
 588                 GVariant *parameters, gpointer user_data)
 589 {
 590         _D("sender_name(%s), interface_name(%s), signal_name(%s)",
 591                 sender_name, interface_name, signal_name);
 592
 593         __eventsystem_event_handler(connection, sender_name,
 594                 object_path, interface_name, signal_name, parameters, user_data);
 595 }
 596
 597 /**
 598  * internal-use filter for system-event
 599  */
 600 static void __eventsystem_filter_sysevent_for_internal(GDBusConnection *connection,
 601                 const gchar *sender_name, const gchar *object_path,
 602                 const gchar *interface_name, const gchar *signal_name,
 603                 GVariant *parameters, gpointer user_data)
 604 {
 605         _D("sender_name(%s), interface_name(%s), signal_name(%s)",
 606                 sender_name, interface_name, signal_name);
 607
 608         __eventsystem_event_handler(connection, sender_name,
 609                 object_path, interface_name, signal_name, parameters, user_data);
 610 }
 611
 612 static int __eventsystem_register_event_internal(const char *event_name,
 613                 eventmap_s **em_s, void *user_data)
 614 {
 615         eventmap_s *em = NULL;
 616         char *interface_name = NULL;
 617         char *object_path = NULL;
 618         char *member_name = NULL;
 619         char *sender_name = NULL;
 620         GDBusSignalCallback filter;
 621         GBusType bus_type;
 622         guint subscription_id = 0;
 623         int ret = 0;
 624         int evt_type = ES_TYPE_UNKNOWN;
 625         GDBusConnection *conn = NULL;
 626
 627         if (__check_eventname_validation_system((char *)event_name)) {
 628                 evt_type = ES_TYPE_SYSTEM;
 629         } else if (__check_eventname_validation_user((char *)event_name)) {
 630                 evt_type = ES_TYPE_USER;
 631         } else {
 632                 evt_type = ES_TYPE_UNKNOWN;
 633                 _E("unknown type event(%s)", event_name);
 634                 return ES_R_EINVAL;
 635         }
 636
 637         if (evt_type == ES_TYPE_SYSTEM) {
 638                 interface_name = strdup(SYS_EVENT_NAME_PREFIX);
 639                 if (interface_name == NULL) {
 640                         _E("out of memory");
 641                         ret = ES_R_ENOMEM;
 642                         goto out_1;
 643                 }
 644
 645                 member_name = __get_member_name_from_eventname((char *)event_name);
 646                 if (member_name == NULL) {
 647                         _E("invalid member_name");
 648                         ret = ES_R_ERROR;
 649                         goto out_2;
 650                 }
 651
 652                 if (!g_dbus_is_member_name(member_name)) {
 653                         _E("invalid member name");
 654                         ret = ES_R_EINVAL;
 655                         goto out_3;
 656                 }
 657                 filter = __eventsystem_filter_sysevent_for_internal;
 658         } else {
 659                 interface_name = __get_encoded_interface_name((char *)event_name);
 660                 if (!interface_name) {
 661                         _E("interface_name is NULL");
 662                         ret = ES_R_ERROR;
 663                         goto out_1;
 664                 }
 665                 if (!g_dbus_is_interface_name(interface_name)) {
 666                         _E("invalid interface_name(%s)", interface_name);
 667                         ret = ES_R_EINVAL;
 668                         goto out_2;
 669                 }
 670                 member_name = strdup(EVENT_SYSTEM_MEMBER);
 671                 if (!member_name) {
 672                         _E("out_of_memory");
 673                         ret = ES_R_ERROR;
 674                         goto out_2;
 675                 }
 676                 filter = __eventsystem_filter_userevent_for_internal;
 677         }
 678
 679         object_path = __get_object_path(interface_name);
 680         if (!object_path) {
 681                 _E("object_path is NULL");
 682                 ret = ES_R_ERROR;
 683                 goto out_3;
 684         }
 685         sender_name = NULL;
 686
 687         bus_type = G_BUS_TYPE_SYSTEM;
 688
 689         if (__get_gdbus_shared_connection(&conn, bus_type, evt_type) < 0) {
 690                 _E("getting gdbus-connetion error");
 691                 goto out_4;
 692         }
 693
 694         subscription_id = g_dbus_connection_signal_subscribe(conn,
 695                 sender_name, /* sender */
 696                 interface_name,
 697                 member_name, /* member */
 698                 object_path, /* object_path */
 699                 NULL, /* arg0 */
 700                 G_DBUS_SIGNAL_FLAGS_NONE,
 701                 filter,
 702                 user_data,
 703                 NULL); /* user_data_free_func */
 704
 705         _D("event_name(%s), interface_name(%s)", event_name, interface_name);
 706         _D("member_name(%s), subscription_id(%d), bus_type(%d)",
 707                 member_name, subscription_id, bus_type);
 708
 709         if (subscription_id != 0) {
 710                 em = calloc(1, sizeof(eventmap_s));
 711                 if (!em) {
 712                         _E("memory alloc failed");
 713                         ret = ES_R_ENOMEM;
 714                 } else {
 715                         em->interface_name = strdup(interface_name);
 716                         em->member_name = strdup(member_name);
 717                         em->event_name = strdup(event_name);
 718                         em->bus_type = bus_type;
 719                         em->reg_id = subscription_id;
 720                         em->event_type = evt_type;
 721
 722                         if (!em->interface_name || !em->member_name || !em->event_name) {
 723                                 _E("out_of_memory");
 724                                 FREE_AND_NULL(em->interface_name);
 725                                 FREE_AND_NULL(em->member_name);
 726                                 FREE_AND_NULL(em->event_name);
 727                                 FREE_AND_NULL(em);
 728                                 ret = ES_R_ENOMEM;
 729                                 goto out_4;
 730                         }
 731
 732                         *em_s = em;
 733                         ret = ES_R_OK;
 734                 }
 735         } else {
 736                 _D("dbus subscribe: error(%d), event(%s)", subscription_id, event_name);
 737                 ret = ES_R_ERROR;
 738         }
 739
 740 out_4:
 741         FREE_AND_NULL(object_path);
 742 out_3:
 743         FREE_AND_NULL(member_name);
 744 out_2:
 745         FREE_AND_NULL(interface_name);
 746 out_1:
 747         if (conn)
 748                 g_object_unref(conn);
 749
 750         return ret;
 751 }
 752
 753 /**
 754  * function : register the event
 755  */
 756 int eventsystem_register_event(const char *event_name, unsigned int *reg_id,
 757                 eventsystem_handler callback, void *user_data)
 758 {
 759         eventmap_s *em = NULL;
 760         int ret = ES_R_ERROR;
 761
 762         retvm_if(!g_dbus_is_interface_name(event_name), ES_R_EINVAL,
 763                 "Invalid argument : event_name(%s)", event_name);
 764         retvm_if(!reg_id, ES_R_EINVAL, "Invalid argument : reg_id");
 765         retvm_if(!callback, ES_R_EINVAL, "Invalid argument : callback");
 766
 767         if (!_initialized)
 768                 __initialize();
 769
 770         ret = __eventsystem_register_event_internal(event_name, &em, user_data);
 771         if (ret == ES_R_OK && em) {
 772                 em->ep_cb = callback;
 773                 system_event_list = g_list_append(system_event_list, em);
 774                 *reg_id = em->reg_id;
 775                 ret = ES_R_OK;
 776         } else {
 777                 _E("error, ret(%d), em(%s)", ret, em);
 778         }
 779
 780         return ret;
 781 }
 782
 783 /**
 784  * function : unregister the event
 785  */
 786 int eventsystem_unregister_event(unsigned int reg_id)
 787 {
 788         eventmap_s em;
 789         eventmap_s *em_data = NULL;
 790         GBusType bus_type;
 791         GList *cb_list = NULL;
 792         GDBusConnection *conn = NULL;
 793         eventsystem_event_type evt_type;
 794
 795         retvm_if(reg_id == 0, ES_R_EINVAL, "Invalid argument : reg_id");
 796
 797         if (!_initialized)
 798                 __initialize();
 799
 800         em.reg_id = reg_id;
 801         cb_list = g_list_find_custom(system_event_list, &em,
 802                 (GCompareFunc)__event_compare_reg_id_cb);
 803         if (cb_list) {
 804                 em_data = (eventmap_s *)cb_list->data;
 805
 806                 bus_type = em_data->bus_type;
 807                 evt_type = em_data->event_type;
 808
 809                 _D("unsubscribe: reg_id(%d), bus_type(%d)", reg_id, bus_type);
 810
 811                 if (__get_gdbus_shared_connection(&conn, bus_type, evt_type) < 0) {
 812                         _E("getting gdbus-connetion error");
 813                         return ES_R_ERROR;
 814                 }
 815                 g_dbus_connection_signal_unsubscribe(conn, reg_id);
 816
 817                 system_event_list = g_list_remove(system_event_list, cb_list->data);
 818
 819                 FREE_AND_NULL(em_data->interface_name);
 820                 FREE_AND_NULL(em_data->member_name);
 821                 FREE_AND_NULL(em_data->event_name);
 822                 FREE_AND_NULL(em_data);
 823                 g_object_unref(conn);
 824         }
 825
 826         return ES_R_OK;
 827 }
 828
 829 static int __eventsystem_send_event(GDBusConnection *conn, eventinfo_s *evti, bundle *data)
 830 {
 831         GError *error = NULL;
 832         GVariant *param = NULL;
 833         gboolean ret;
 834
 835         bundle_raw *raw = NULL;
 836         bundle *buf = data;
 837         int len;
 838
 839         bundle_encode(buf, &raw, &len);
 840
 841         param = g_variant_new("(us)", len, raw);
 842         ret = g_dbus_connection_emit_signal(conn,
 843                 evti->destination_name,
 844                 evti->object_path,
 845                 evti->interface_name,
 846                 evti->member_name,
 847                 param,
 848                 &error);
 849
 850         _D("interface_name(%s)", evti->interface_name);
 851         _D("object_path(%s)", evti->object_path);
 852         _D("member_name(%s)", evti->member_name);
 853
 854         if (ret == FALSE) {
 855                 _E("Unable to connect to dbus: %s", error->message);
 856                 g_error_free(error);
 857                 return ES_R_ERROR;
 858         }
 859
 860         bundle_free_encoded_rawdata(&raw);
 861
 862         return ES_R_OK;
 863 }
 864
 865 static void __eventsystem_free_trusted_list(gpointer data)
 866 {
 867         char *name = (char *)data;
 868
 869         FREE_AND_NULL(name);
 870 }
 871
 872 static int __eventsystem_send_trusted_event(GDBusConnection *conn, eventinfo_s *evti,
 873                 bundle *data, GList *dest_list)
 874 {
 875         GList *tmp_list = NULL;
 876         int ret = 0;
 877         char *dest_name;
 878
 879         if (dest_list) {
 880                 tmp_list = g_list_first(dest_list);
 881
 882                 while (tmp_list != NULL) {
 883                         dest_name = (char *)tmp_list->data;
 884                         if (dest_name && dest_name[0] != '\0') {
 885                                 _D("dest_name(%s)", dest_name);
 886                                 evti->destination_name = dest_name;
 887                                 ret = __eventsystem_send_event(conn, evti, data);
 888                                 if (ret != ES_R_OK) {
 889                                         _E("send error");
 890                                         ret = ES_R_ERROR;
 891                                         break;
 892                                 }
 893                         }
 894                         tmp_list = g_list_next(tmp_list);
 895                 }
 896                 g_list_free_full(dest_list, __eventsystem_free_trusted_list);
 897         } else {
 898                 _E("dest_list is null");
 899         }
 900
 901         return ES_R_OK;
 902 }
 903
 904 /**
 905  * function : send the user-event
 906  */
 907 int eventsystem_send_user_event(const char *event_name, bundle *data, bool is_trusted)
 908 {
 909         int ret = 0;
 910         eventinfo_s *evti = NULL;
 911         struct last_data_item *item;
 912         bundle_raw *raw = NULL;
 913         int len;
 914
 915         /* check validation */
 916         retvm_if(!event_name, ES_R_EINVAL, "Invalid argument : event_name is NULL");
 917         retvm_if(!data, ES_R_EINVAL, "Invalid argument : data is NULL");
 918         retvm_if(!__check_eventname_validation_user((char *)event_name), ES_R_EINVAL,
 919                 "Invalid argument : event_name(%s)", event_name);
 920
 921         if (!__check_validation_user_defined_name(event_name)) {
 922                 _E("Invalid event name(%s)", event_name);
 923                 return ES_R_EINVAL;
 924         }
 925
 926         evti = calloc(1, sizeof(eventinfo_s));
 927         if (!evti) {
 928                 _E("memory alloc failed");
 929                 return ES_R_ENOMEM;
 930         }
 931         evti->event_name = strdup(event_name);
 932         if (!evti->event_name) {
 933                 _E("memory alloc failed");
 934                 ret = ES_R_ENOMEM;
 935                 goto out_1;
 936         }
 937
 938         evti->interface_name = __get_encoded_interface_name(evti->event_name);
 939         if (!evti->interface_name) {
 940                 _E("interface_name is NULL");
 941                 ret = ES_R_ERROR;
 942                 goto out_2;
 943         }
 944         evti->member_name = strdup(EVENT_SYSTEM_MEMBER);
 945         if (!evti->member_name) {
 946                 _E("memory alloc failed");
 947                 ret = ES_R_ENOMEM;
 948                 goto out_3;
 949         }
 950
 951         evti->object_path = __get_object_path(evti->interface_name);
 952         if (!evti->object_path) {
 953                 _E("object_path is NULL");
 954                 ret = ES_R_ERROR;
 955                 goto out_4;
 956         }
 957
 958         evti->destination_name = NULL;
 959         evti->is_user_event = true;
 960         evti->is_trusted = is_trusted;
 961
 962         GDBusConnection *conn = NULL;
 963         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SESSION, ES_TYPE_USER) == ES_R_OK) {
 964                 if (is_trusted) {
 965                         GList *dest_list = NULL;
 966                         ret = __eventsystem_requet_destination_list(evti->event_name, &dest_list);
 967                         if (ret < 0) {
 968                                 _E("failed to get dest list");
 969                                 ret = ES_R_ERROR;
 970                         } else {
 971                                 ret = __eventsystem_send_trusted_event(conn, evti,
 972                                         data, dest_list);
 973                         }
 974                 } else {
 975                         ret = __eventsystem_send_event(conn, evti, data);
 976                 }
 977
 978                 if (bundle_encode(data, &raw, &len)) {
 979                         _E("Unable to encode bundle");
 980                         ret = ES_R_ERROR;
 981                         goto out_5;
 982                 }
 983
 984                 item = (struct last_data_item *)g_hash_table_lookup(last_data_tbl,
 985                                 evti->event_name);
 986                 if (item) {
 987                         if (!evti->is_trusted) {
 988                                 if (item->param)
 989                                         g_variant_unref(item->param);
 990                                 item->param = g_variant_new("(us)", len, raw);
 991                         }
 992                         if (item->trusted_param)
 993                                 g_variant_unref(item->trusted_param);
 994                         item->trusted_param = g_variant_new("(us)", len, raw);
 995                 }
 996
 997                 bundle_free_encoded_rawdata(&raw);
 998         } else {
 999                 _E("getting gdbus-connetion error");
1000                 ret = ES_R_ERROR;
1001         }
1002
1003         if (conn)
1004                 g_object_unref(conn);
1005
1006 out_5:
1007         FREE_AND_NULL(evti->object_path);
1008 out_4:
1009         FREE_AND_NULL(evti->member_name);
1010 out_3:
1011         FREE_AND_NULL(evti->interface_name);
1012 out_2:
1013         FREE_AND_NULL(evti->event_name);
1014 out_1:
1015         FREE_AND_NULL(evti);
1016
1017         return ret;
1018 }
1019
1020 /**
1021  * function : send the system-event
1022  */
1023 int eventsystem_send_system_event(const char *event_name, bundle *data)
1024 {
1025         int ret = 0;
1026         eventinfo_s *evti = NULL;
1027         GDBusConnection *conn = NULL;
1028
1029         pthread_mutex_lock(&send_sync_lock);
1030
1031         /* check validation */
1032         tryvm_if(!event_name, ret = ES_R_EINVAL, "Invalid argument : event_name is NULL");
1033         tryvm_if(!data, ret = ES_R_EINVAL, "Invalid argument : data is NULL");
1034         tryvm_if(!__check_eventname_validation_system((char *)event_name), ret = ES_R_EINVAL,
1035                 "Invalid argument : event_name(%s)", event_name);
1036         tryvm_if(!g_dbus_is_interface_name(event_name), ret = ES_R_EINVAL,
1037                 "Invalid argument : event_name(%s)", event_name);
1038
1039         _D("event_name(%s)", event_name);
1040
1041         evti = calloc(1, sizeof(eventinfo_s));
1042         if (!evti) {
1043                 _E("memory alloc failed");
1044                 pthread_mutex_unlock(&send_sync_lock);
1045                 return ES_R_ENOMEM;
1046         }
1047         evti->event_name = strdup(event_name);
1048         if (!evti->event_name) {
1049                 _E("out_of_memory");
1050                 ret = ES_R_ENOMEM;
1051                 goto out_1;
1052         }
1053         evti->interface_name = strdup(SYS_EVENT_NAME_PREFIX);
1054         if (!evti->interface_name) {
1055                 _E("out of memory");
1056                 ret = ES_R_ENOMEM;
1057                 goto out_2;
1058         }
1059         evti->member_name = __get_member_name_from_eventname(evti->event_name);
1060         if (!evti->member_name) {
1061                 _E("member_name is NULL");
1062                 ret = ES_R_ERROR;
1063                 goto out_3;
1064         }
1065         if (!g_dbus_is_member_name(evti->member_name)) {
1066                 _E("Invalid member_name(%s)", evti->member_name);
1067                 ret = ES_R_EINVAL;
1068                 goto out_4;
1069         }
1070         evti->object_path = __get_object_path(evti->interface_name);
1071         if (!evti->object_path) {
1072                 _E("object_path is NULL");
1073                 ret = ES_R_ERROR;
1074                 goto out_4;
1075         }
1076         evti->destination_name = NULL;
1077         evti->is_user_event = false;
1078
1079         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) == ES_R_OK) {
1080                 ret = __eventsystem_send_event(conn, evti, data);
1081         } else {
1082                 _E("getting gdbus-connection error");
1083                 ret = ES_R_ERROR;
1084         }
1085
1086         if (conn)
1087                 g_object_unref(conn);
1088
1089         FREE_AND_NULL(evti->object_path);
1090 out_4:
1091         FREE_AND_NULL(evti->member_name);
1092 out_3:
1093         FREE_AND_NULL(evti->interface_name);
1094 out_2:
1095         FREE_AND_NULL(evti->event_name);
1096 out_1:
1097         FREE_AND_NULL(evti);
1098
1099 catch:
1100         pthread_mutex_unlock(&send_sync_lock);
1101
1102         return ret;
1103 }
1104
1105 /**
1106  * function : request sending the event
1107  */
1108 int eventsystem_request_sending_system_event(const char *event_name, bundle *data)
1109 {
1110         int ret = 0;
1111         GDBusConnection *conn = NULL;
1112         GError *error = NULL;
1113         GDBusProxy *proxy = NULL;
1114         GVariant *param = NULL;
1115         GVariant *value = NULL;
1116         gint result = 0;
1117         bundle_raw *raw = NULL;
1118         int len = 0;
1119
1120         _D("event_name(%s)", event_name);
1121
1122         if (!_initialized)
1123                 __initialize();
1124
1125         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1126                 _E("getting gdbus-connetion error");
1127                 ret = ES_R_ERROR;
1128                 goto out_1;
1129         }
1130
1131         proxy = g_dbus_proxy_new_sync(conn,
1132                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1133                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1134                 NULL, &error);
1135         if (proxy == NULL) {
1136                 _E("failed to create new proxy, error(%s)", error->message);
1137                 g_error_free(error);
1138                 ret = ES_R_ERROR;
1139                 goto out_1;
1140         }
1141
1142         bundle_encode(data, &raw, &len);
1143
1144         param = g_variant_new("(ssi)", event_name, raw, len);
1145         value = g_dbus_proxy_call_sync(proxy, "RequestSendingEvent", param,
1146                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1147         if (error != NULL) {
1148                 _E("proxy call sync error(%s)", error->message);
1149                 g_error_free(error);
1150                 ret = ES_R_ERROR;
1151                 goto out_2;
1152         }
1153
1154         g_variant_get(value, "(i)", &result);
1155
1156         _D("result(%d)", result);
1157
1158         ret = ES_R_OK;
1159
1160 out_2:
1161         g_variant_unref(value);
1162 out_1:
1163         if (conn)
1164                 g_object_unref(conn);
1165
1166         return ret;
1167 }
1168
1169 static int __eventsystem_check_sender_validation(int sender_pid, const char *event_name,
1170                 char **sender_id)
1171 {
1172         int ret = ES_R_EINVAL;
1173         GDBusConnection *conn = NULL;
1174         GError *error = NULL;
1175         GDBusProxy *proxy = NULL;
1176         GVariant *param = NULL;
1177         GVariant *value = NULL;
1178         gint result = 0;
1179
1180         if (!_initialized)
1181                 __initialize();
1182
1183         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1184                 _E("getting gdbus-connetion error");
1185                 ret = ES_R_ERROR;
1186                 goto out_1;
1187         }
1188
1189         proxy = g_dbus_proxy_new_sync(conn,
1190                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1191                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1192                 NULL, &error);
1193         if (proxy == NULL) {
1194                 _E("failed to create new proxy, error(%s)", error->message);
1195                 g_error_free(error);
1196                 ret = ES_R_ERROR;
1197                 goto out_1;
1198         }
1199
1200         param = g_variant_new("(is)", sender_pid, event_name);
1201         value = g_dbus_proxy_call_sync(proxy, "CheckSenderValidation", param,
1202                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1203         if (error != NULL) {
1204                 _E("proxy call sync error(%s)", error->message);
1205                 g_error_free(error);
1206                 ret = ES_R_ERROR;
1207                 goto out_2;
1208         }
1209
1210         g_variant_get(value, "(is)", &result, sender_id);
1211
1212         _D("result(%d)", result);
1213
1214         if (result == 1)
1215                 ret = ES_R_OK;
1216 out_2:
1217         g_variant_unref(value);
1218 out_1:
1219         if (conn)
1220                 g_object_unref(conn);
1221
1222         return ret;
1223 }
1224
1225 static int __eventsystem_check_user_send_validation(const char *event_name)
1226 {
1227         int ret = ES_R_EINVAL;
1228         GDBusConnection *conn = NULL;
1229         GError *error = NULL;
1230         GDBusProxy *proxy = NULL;
1231         GVariant *param = NULL;
1232         GVariant *value = NULL;
1233         gint result = 0;
1234
1235         if (!_initialized)
1236                 __initialize();
1237
1238         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1239                 _E("getting gdbus-connetion error");
1240                 ret = ES_R_ERROR;
1241                 goto out_1;
1242         }
1243
1244         proxy = g_dbus_proxy_new_sync(conn,
1245                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1246                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1247                 NULL, &error);
1248         if (proxy == NULL) {
1249                 _E("failed to create new proxy, error(%s)", error->message);
1250                 g_error_free(error);
1251                 ret = ES_R_ERROR;
1252                 goto out_1;
1253         }
1254
1255         param = g_variant_new("(s)", event_name);
1256         value = g_dbus_proxy_call_sync(proxy, "CheckUserSendValidation", param,
1257                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1258         if (error != NULL) {
1259                 _E("proxy call sync error(%s)", error->message);
1260                 g_error_free(error);
1261                 ret = ES_R_ERROR;
1262                 goto out_2;
1263         }
1264
1265         g_variant_get(value, "(i)", &result);
1266
1267         _D("result(%d)", result);
1268
1269         if (result == 1)
1270                 ret = ES_R_OK;
1271 out_2:
1272         g_variant_unref(value);
1273 out_1:
1274         if (conn)
1275                 g_object_unref(conn);
1276
1277         return ret;
1278 }
1279
1280 static int __eventsystem_check_privilege_validation(const char *event_name)
1281 {
1282         int ret = ES_R_ENOTPERMITTED;
1283         GDBusConnection *conn = NULL;
1284         GError *error = NULL;
1285         GDBusProxy *proxy = NULL;
1286         GVariant *param = NULL;
1287         GVariant *value = NULL;
1288         gint result = 0;
1289
1290         if (!_initialized)
1291                 __initialize();
1292
1293         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1294                 _E("getting gdbus-connetion error");
1295                 ret = ES_R_ERROR;
1296                 goto out_1;
1297         }
1298
1299         proxy = g_dbus_proxy_new_sync(conn,
1300                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1301                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1302                 NULL, &error);
1303         if (proxy == NULL) {
1304                 _E("failed to create new proxy, error(%s)", error->message);
1305                 g_error_free(error);
1306                 ret = ES_R_ERROR;
1307                 goto out_1;
1308         }
1309
1310         param = g_variant_new("(s)", event_name);
1311         value = g_dbus_proxy_call_sync(proxy, "CheckPrivilegeValidation", param,
1312                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1313         if (error != NULL) {
1314                 _E("proxy call sync error(%s)", error->message);
1315                 g_error_free(error);
1316                 ret = ES_R_ERROR;
1317                 goto out_2;
1318         }
1319
1320         g_variant_get(value, "(i)", &result);
1321
1322         _D("result(%d)", result);
1323
1324         if (result == 1)
1325                 ret = ES_R_OK;
1326 out_2:
1327         g_variant_unref(value);
1328 out_1:
1329         if (conn)
1330                 g_object_unref(conn);
1331
1332         return ret;
1333 }
1334
1335 static int __eventsystem_setup_trusted_peer(const char *event_name, const char *dest_bus_name)
1336 {
1337         int ret = ES_R_ERROR;
1338         GDBusConnection *conn = NULL;
1339         GError *error = NULL;
1340         GDBusProxy *proxy = NULL;
1341         GVariant *param = NULL;
1342         GVariant *value = NULL;
1343         gint result = 0;
1344
1345         if (!_initialized)
1346                 __initialize();
1347
1348         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1349                 _E("getting gdbus-connetion error");
1350                 ret = ES_R_ERROR;
1351                 goto out_1;
1352         }
1353
1354         proxy = g_dbus_proxy_new_sync(conn,
1355                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1356                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1357                 NULL, &error);
1358         if (proxy == NULL) {
1359                 _E("failed to create new proxy, error(%s)", error->message);
1360                 g_error_free(error);
1361                 ret = ES_R_ERROR;
1362                 goto out_1;
1363         }
1364
1365         param = g_variant_new("(ss)", event_name, dest_bus_name);
1366         value = g_dbus_proxy_call_sync(proxy, "SetupTrustedPeer", param,
1367                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1368         if (error != NULL) {
1369                 _E("proxy call sync error(%s)", error->message);
1370                 g_error_free(error);
1371                 ret = ES_R_ERROR;
1372                 goto out_2;
1373         }
1374
1375         g_variant_get(value, "(i)", &result);
1376
1377         _D("result(%d)", result);
1378
1379         if (result == 1)
1380                 ret = ES_R_OK;
1381 out_2:
1382         g_variant_unref(value);
1383 out_1:
1384         if (conn)
1385                 g_object_unref(conn);
1386
1387         return ret;
1388 }
1389
1390 static int __eventsystem_requet_destination_list(const char *event_name, GList **dest_list)
1391 {
1392         int ret = ES_R_ERROR;
1393         GDBusConnection *conn = NULL;
1394         GError *error = NULL;
1395         GDBusProxy *proxy = NULL;
1396         GVariant *param = NULL;
1397         GVariant *value = NULL;
1398         GVariantIter *iter;
1399         gchar *str;
1400         char *dest_name = NULL;
1401         gint result = 0;
1402
1403         if (!_initialized)
1404                 __initialize();
1405
1406         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1407                 _E("getting gdbus-connetion error");
1408                 ret = ES_R_ERROR;
1409                 goto out_1;
1410         }
1411
1412         proxy = g_dbus_proxy_new_sync(conn,
1413                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1414                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1415                 NULL, &error);
1416         if (proxy == NULL) {
1417                 _E("failed to create new proxy, error(%s)", error->message);
1418                 g_error_free(error);
1419                 ret = ES_R_ERROR;
1420                 goto out_1;
1421         }
1422
1423         param = g_variant_new("(s)", event_name);
1424         value = g_dbus_proxy_call_sync(proxy, "GetTrustedPeerList", param,
1425                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1426         if (error != NULL) {
1427                 _E("proxy call sync error(%s)", error->message);
1428                 g_error_free(error);
1429                 ret = ES_R_ERROR;
1430                 goto out_2;
1431         }
1432
1433         g_variant_get(value, "(ias)", &result, &iter);
1434
1435         _D("result(%d)", result);
1436
1437         if (result == 1) {
1438                 ret = ES_R_OK;
1439                 while (g_variant_iter_loop(iter, "s", &str)) {
1440                         dest_name = strdup((char *)str);
1441                         if (dest_name) {
1442                                 _D("dest name(%s)", str);
1443                                 *dest_list = g_list_append(*dest_list, dest_name);
1444                         } else {
1445                                 _E("out of memory");
1446                                 ret = ES_R_ENOMEM;
1447                                 break;
1448                         }
1449                 }
1450         }
1451         g_variant_iter_free(iter);
1452
1453 out_2:
1454         g_variant_unref(value);
1455 out_1:
1456         if (conn)
1457                 g_object_unref(conn);
1458
1459         return ret;
1460 }
1461
1462 #ifdef APPFW_EVENT_SYSTEM_EARLIER_FEATURE
1463 static int __eventsystem_request_earlier_data(const char *event_name,
1464                 eventsystem_cb callback, void *user_data)
1465 {
1466         int ret = 0;
1467         GDBusConnection *conn = NULL;
1468         GError *error = NULL;
1469         GDBusProxy *proxy = NULL;
1470         GVariant *param = NULL;
1471         GVariant *value = NULL;
1472         gint result = 0;
1473         bundle_raw *raw = NULL;
1474         int len = 0;
1475
1476         if (!_initialized)
1477                 __initialize();
1478
1479         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM, ES_TYPE_SYSTEM) < 0) {
1480                 _E("getting gdbus-connetion error");
1481                 ret = ES_R_ERROR;
1482                 goto out_1;
1483         }
1484
1485         proxy = g_dbus_proxy_new_sync(conn,
1486                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1487                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1488                 NULL, &error);
1489
1490         if (proxy == NULL) {
1491                 _E("failed to create new proxy, error(%s)", error->message);
1492                 g_error_free(error);
1493                 ret = ES_R_ERROR;
1494                 goto out_1;
1495         }
1496
1497         param = g_variant_new("(s)", event_name);
1498         value = g_dbus_proxy_call_sync(proxy, "GetEarlierData", param,
1499                 G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1500         if (error != NULL) {
1501                 _E("proxy call sync error(%s)", error->message);
1502                 g_error_free(error);
1503                 ret = ES_R_ERROR;
1504                 goto out_2;
1505         }
1506
1507         g_variant_get(value, "(iis)", &result, &len, &raw);
1508         g_variant_unref(value);
1509
1510         _D("result(%d), len(%d)", result, len);
1511
1512         if (!result && raw && len > 0) {
1513                 callback(event_name, raw, len, user_data);
1514                 bundle_free_encoded_rawdata(&raw);
1515         }
1516
1517         ret = ES_R_OK;
1518
1519 out_2:
1520         g_variant_unref(value);
1521 out_1:
1522         if (conn)
1523                 g_object_unref(conn);
1524
1525         return ret;
1526 }
1527 #endif
1528
1529 static int __request_esd_for_last_data(const char *event_name, bool check)
1530 {
1531         int ret = 0;
1532         GDBusConnection *conn = NULL;
1533         GError *error = NULL;
1534         GDBusProxy *proxy = NULL;
1535         GVariant *param = NULL;
1536         GVariant *value = NULL;
1537         gint result = 0;
1538
1539         if (!_initialized)
1540                 __initialize();
1541
1542         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SYSTEM,
1543                                 ES_TYPE_SYSTEM) < 0) {
1544                 _E("getting gdbus-connetion error");
1545                 ret = ES_R_ERROR;
1546                 goto out_1;
1547         }
1548
1549         proxy = g_dbus_proxy_new_sync(conn,
1550                 G_DBUS_PROXY_FLAGS_NONE, NULL,
1551                 ESD_BUS_NAME, ESD_OBJECT_PATH, ESD_INTERFACE_NAME,
1552                 NULL, &error);
1553
1554         if (proxy == NULL) {
1555                 _E("failed to create new proxy, error(%s)", error->message);
1556                 g_error_free(error);
1557                 ret = ES_R_ERROR;
1558                 goto out_1;
1559         }
1560
1561         param = g_variant_new("(ss)", event_name,
1562                         check ? s_info.own_name_session_bus :
1563                         s_info.own_name_system_bus);
1564         value = g_dbus_proxy_call_sync(proxy,
1565                         check ? "CheckLastData" : "KeepLastData", param,
1566                         G_DBUS_CALL_FLAGS_NONE, -1, NULL, &error);
1567
1568         if (error != NULL) {
1569                 _E("proxy call sync error(%s)", error->message);
1570                 g_error_free(error);
1571                 ret = ES_R_ERROR;
1572                 goto out_2;
1573         }
1574
1575         g_variant_get(value, "(i)", &result);
1576
1577         _D("result(%d)", result);
1578
1579         ret = result;
1580
1581 out_2:
1582         g_variant_unref(value);
1583 out_1:
1584         if (conn)
1585                 g_object_unref(conn);
1586
1587         return ret;
1588 }
1589
1590 static void _send_last_user_event(const char *event_name,
1591                 bundle *data, void *user_data)
1592 {
1593         GDBusConnection *conn = NULL;
1594         GError *error = NULL;
1595         eventinfo_s *evti = NULL;
1596         int ret;
1597         struct last_data_item *item;
1598         const char *is_trusted;
1599
1600         _D("send last data");
1601
1602         if (g_strcmp0(event_name, SYS_EVENT_REQUEST_LAST_DATA) != 0)
1603                 return;
1604
1605         evti = calloc(1, sizeof(eventinfo_s));
1606         if (!evti) {
1607                 _E("memory alloc failed");
1608                 return;
1609         }
1610
1611         evti->event_name = (char *)bundle_get_val(data,
1612                         EVT_KEY_KEPT_EVENT_NAME);
1613         if (!evti->event_name) {
1614                 _E("memory alloc failed");
1615                 goto out_1;
1616         }
1617
1618         item = (struct last_data_item *)g_hash_table_lookup(last_data_tbl,
1619                         evti->event_name);
1620         if (!item)
1621                 goto out_1;
1622
1623         evti->interface_name = __get_encoded_interface_name(evti->event_name);
1624         if (!evti->interface_name) {
1625                 _E("interface_name is NULL");
1626                 goto out_1;
1627         }
1628
1629         evti->member_name = strdup(EVENT_SYSTEM_MEMBER);
1630         if (!evti->member_name) {
1631                 _E("memory alloc failed");
1632                 goto out_2;
1633         }
1634
1635         evti->object_path = __get_object_path(evti->interface_name);
1636         if (!evti->object_path) {
1637                 _E("object_path is NULL");
1638                 goto out_3;
1639         }
1640
1641         evti->destination_name = (char *)bundle_get_val(data,
1642                         EVT_KEY_KEPT_OWN_NAME);
1643         if (!evti->destination_name) {
1644                 _E("object_path is NULL");
1645                 goto out_4;
1646         }
1647
1648         is_trusted = bundle_get_val(data, EVT_KEY_KEPT_IS_TRUSTED);
1649         if (!is_trusted) {
1650                 _E("object_path is NULL");
1651                 goto out_4;
1652         }
1653
1654         if (strncmp("true", is_trusted, sizeof("true")) != 0) {
1655                         if (!item->trusted_param)
1656                                 goto out_4;
1657                         evti->is_trusted = true;
1658         } else {
1659                         if (!item->param)
1660                                 goto out_4;
1661                         evti->is_trusted = false;
1662         }
1663
1664         if (__get_gdbus_shared_connection(&conn, G_BUS_TYPE_SESSION,
1665                                 ES_TYPE_USER) == ES_R_OK) {
1666                 ret = g_dbus_connection_emit_signal(conn,
1667                                 evti->destination_name,
1668                                 evti->object_path,
1669                                 evti->interface_name,
1670                                 evti->member_name,
1671                                 evti->is_trusted ? item->trusted_param : item->param,
1672                                 &error);
1673                 if (ret == FALSE) {
1674                         _E("Unable to connect to dbus: %s", error->message);
1675                         g_error_free(error);
1676                 }
1677         }
1678
1679         if (conn)
1680                 g_object_unref(conn);
1681
1682 out_4:
1683         FREE_AND_NULL(evti->object_path);
1684 out_3:
1685         FREE_AND_NULL(evti->member_name);
1686 out_2:
1687         FREE_AND_NULL(evti->interface_name);
1688 out_1:
1689         FREE_AND_NULL(evti);
1690 }
1691
1692 int eventsystem_keep_last_event_data(const char *event_name)
1693 {
1694         int ret = 0;
1695         unsigned int reg_id;
1696         struct last_data_item *item;
1697
1698         if (last_data_tbl == NULL)
1699                 last_data_tbl = g_hash_table_new(g_str_hash, g_str_equal);
1700
1701         ret = __request_esd_for_last_data(event_name, false);
1702         if (ret != ES_R_OK)
1703                 return ret;
1704
1705         item = calloc(1, sizeof(*item));
1706         if (!item)
1707                 return ES_R_ENOMEM;
1708
1709         item->event_name = strdup(event_name);
1710         item->param = NULL;
1711         item->trusted_param = NULL;
1712
1713         g_hash_table_insert(last_data_tbl, (char *)event_name, item);
1714
1715         ret = eventsystem_register_event(SYS_EVENT_REQUEST_LAST_DATA,
1716                         &reg_id, _send_last_user_event, NULL);
1717
1718         return ret;
1719 }
1720
1721 int eventsystem_register_application_event(const char *event_name, unsigned int *reg_id,
1722                 int *event_type, eventsystem_cb callback, void *user_data)
1723 {
1724         eventmap_s *em;
1725         char *interface_name = NULL;
1726         char *object_path = NULL;
1727         char *member_name = NULL;
1728         char *sender_name = NULL;
1729         GDBusSignalCallback filter;
1730         GBusType bus_type;
1731         guint  subscription_id  = 0;
1732         int ret = 0;
1733         GDBusConnection *conn = NULL;
1734
1735         if (!_initialized)
1736                 __initialize();
1737
1738         if (__check_eventname_validation_system((char *)event_name)) {
1739                 if (__eventsystem_check_privilege_validation(event_name) != ES_R_OK) {
1740                         _E("invalid privilege(%s)", event_name);
1741                         return ES_R_ENOTPERMITTED;
1742                 }
1743                 *event_type = ES_TYPE_SYSTEM;
1744         } else if (__check_eventname_validation_user((char *)event_name)) {
1745                 *event_type = ES_TYPE_USER;
1746         } else {
1747                 *event_type = ES_TYPE_UNKNOWN;
1748                 _E("unknown type event(%s)", event_name);
1749                 return ES_R_EINVAL;
1750         }
1751
1752         if (*event_type == ES_TYPE_SYSTEM) {
1753                 interface_name = strdup(SYS_EVENT_NAME_PREFIX);
1754                 if (interface_name == NULL) {
1755                         _E("out of memory");
1756                         return ES_R_ENOMEM;
1757                 }
1758                 if (!g_dbus_is_interface_name(interface_name)) {
1759                         _E("invalid interface_name(%s)", interface_name);
1760                         FREE_AND_NULL(interface_name);
1761                         return ES_R_EINVAL;
1762                 }
1763                 member_name = __get_member_name_from_eventname((char *)event_name);
1764                 if (member_name == NULL) {
1765                         _E("member_name is NULL(%s)", event_name);
1766                         FREE_AND_NULL(interface_name);
1767                         return ES_R_ERROR;
1768                 }
1769                 if (!g_dbus_is_member_name(member_name)) {
1770                         _E("Invalid member_name(%s)", member_name);
1771                         FREE_AND_NULL(interface_name);
1772                         FREE_AND_NULL(member_name);
1773                         return ES_R_ERROR;
1774                 }
1775                 filter = __eventsystem_filter_sysevent_for_application;
1776                 bus_type = G_BUS_TYPE_SYSTEM;
1777         } else {
1778                 interface_name = __get_encoded_interface_name((char *)event_name);
1779                 if (!interface_name) {
1780                         _E("interface_name is NULL");
1781                         return ES_R_ERROR;
1782                 }
1783                 if (!g_dbus_is_interface_name(interface_name)) {
1784                         _E("invalid interface_name(%s)", interface_name);
1785                         FREE_AND_NULL(interface_name);
1786                         return ES_R_EINVAL;
1787                 }
1788                 member_name = strdup(EVENT_SYSTEM_MEMBER);
1789                 if (!member_name) {
1790                         _E("out_of_memory");
1791                         FREE_AND_NULL(interface_name);
1792                         return ES_R_ERROR;
1793                 }
1794                 filter = __eventsystem_filter_userevent_for_application;
1795                 bus_type = G_BUS_TYPE_SESSION;
1796         }
1797
1798         object_path = __get_object_path(interface_name);
1799         if (!object_path) {
1800                 _E("failed get object_path");
1801                 FREE_AND_NULL(interface_name);
1802                 FREE_AND_NULL(member_name);
1803                 return ES_R_ERROR;
1804         }
1805         sender_name = NULL;
1806
1807         _D("interface_name(%s), object_path(%s)", interface_name, object_path);
1808         _D(" member_name(%s), sender_name(%s), type(%d), bus_type(%d)",
1809                 member_name, sender_name, *event_type, bus_type);
1810
1811         if (__get_gdbus_shared_connection(&conn, bus_type, *event_type) < 0) {
1812                 _E("getting gdbus-connetion error");
1813                 FREE_AND_NULL(interface_name);
1814                 FREE_AND_NULL(object_path);
1815                 FREE_AND_NULL(member_name);
1816                 return ES_R_ERROR;
1817         }
1818
1819 #ifdef APPFW_EVENT_SYSTEM_EARLIER_FEATURE
1820         __eventsystem_request_earlier_data(event_name, callback, user_data);
1821 #endif
1822
1823         subscription_id = g_dbus_connection_signal_subscribe(conn,
1824                 sender_name, /* sender */
1825                 interface_name,
1826                 member_name, /* member */
1827                 object_path, /* object_path */
1828                 NULL, /* arg0 */
1829                 G_DBUS_SIGNAL_FLAGS_NONE,
1830                 filter,
1831                 user_data,
1832                 NULL); /* user_data_free_func */
1833
1834         _D("event_name(%s), subscription_id(%d)", event_name, subscription_id);
1835
1836         if (subscription_id != 0) {
1837                 em = calloc(1, sizeof(eventmap_s));
1838                 if (!em) {
1839                         _E("memory alloc failed");
1840                         ret = ES_R_ENOMEM;
1841                 } else {
1842                         em->interface_name = strdup(interface_name);
1843                         em->member_name = strdup(member_name);
1844                         em->event_name = strdup(event_name);
1845                         em->es_cb = callback;
1846                         em->bus_type = bus_type;
1847                         em->reg_id = subscription_id;
1848                         em->event_type = *event_type;
1849
1850                         if (!em->interface_name || !em->member_name ||
1851                                 !em->event_name) {
1852                                 _E("out_of_memory");
1853                                 FREE_AND_NULL(em->interface_name);
1854                                 FREE_AND_NULL(em->member_name);
1855                                 FREE_AND_NULL(em->event_name);
1856                                 FREE_AND_NULL(em);
1857                                 ret = ES_R_ENOMEM;
1858                         } else {
1859                                 system_event_list =
1860                                         g_list_append(system_event_list, em);
1861                                 *reg_id = subscription_id;
1862
1863                                 ret = ES_R_OK;
1864
1865                                 if (em->bus_type == G_BUS_TYPE_SESSION &&
1866                                          em->event_type == ES_TYPE_USER) {
1867                                         if (s_info.own_name_session_bus == NULL) {
1868                                                 _E("session bus is not ready");
1869                                                 ret = ES_R_ERROR;
1870                                         } else {
1871                                                 if (__eventsystem_setup_trusted_peer(event_name,
1872                                                         s_info.own_name_session_bus) < 0) {
1873                                                         _E("failed to setup trusted peer");
1874                                                         ret = ES_R_ERROR;
1875                                                 }
1876                                         }
1877                                 }
1878                         }
1879                 }
1880         } else {
1881                 _E("dbus subscribe: error(%d)", subscription_id);
1882                 ret = ES_R_ERROR;
1883         }
1884
1885         FREE_AND_NULL(interface_name);
1886         FREE_AND_NULL(object_path);
1887         FREE_AND_NULL(member_name);
1888         if (conn)
1889                 g_object_unref(conn);
1890
1891         __request_esd_for_last_data(event_name, true);
1892
1893         return ret;
1894 }
1895
1896 int eventsystem_unregister_application_event(unsigned int reg_id)
1897 {
1898         eventmap_s em;
1899         eventmap_s *em_data = NULL;
1900         GBusType bus_type;
1901         GList *cb_list = NULL;
1902         GDBusConnection *conn = NULL;
1903         eventsystem_event_type evt_type;
1904
1905         retvm_if(reg_id == 0, ES_R_EINVAL, "Invalid argument : reg_id");
1906
1907         if (!_initialized)
1908                 __initialize();
1909
1910         em.reg_id = reg_id;
1911         cb_list = g_list_find_custom(system_event_list, &em,
1912                 (GCompareFunc)__event_compare_reg_id_cb);
1913         if (cb_list) {
1914                 em_data = (eventmap_s *)cb_list->data;
1915
1916                 bus_type = em_data->bus_type;
1917                 evt_type = em_data->event_type;
1918
1919                 _D("unsubscribe: reg_id(%d), bus_type(%d)", reg_id, bus_type);
1920
1921                 if (__get_gdbus_shared_connection(&conn, bus_type, evt_type) < 0) {
1922                         _E("getting gdbus-connetion error");
1923                         return ES_R_ERROR;
1924                 }
1925                 g_dbus_connection_signal_unsubscribe(conn, reg_id);
1926
1927                 system_event_list = g_list_remove(system_event_list, cb_list->data);
1928
1929                 FREE_AND_NULL(em_data->interface_name);
1930                 FREE_AND_NULL(em_data->member_name);
1931                 FREE_AND_NULL(em_data->event_name);
1932                 FREE_AND_NULL(em_data);
1933                 g_object_unref(conn);
1934         } else {
1935                 _E("not found matched item");
1936                 return ES_R_ERROR;
1937         }
1938
1939         return ES_R_OK;
1940 }
1941
1942 int eventsystem_application_finalize(void)
1943 {
1944         gpointer key;
1945         gpointer value;
1946         GHashTableIter iter;
1947         char *key_item;
1948         char *val_item;
1949
1950         _D("release all resouces");
1951
1952         if (system_event_list)
1953                 g_list_free(system_event_list);
1954
1955         if (check_tbl) {
1956                 g_hash_table_iter_init(&iter, check_tbl);
1957
1958                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1959                         val_item = (char *)value;
1960                         if (val_item)
1961                                 free(val_item);
1962                         else
1963                                 _E("check_tbl, val_item is NULL");
1964                         g_hash_table_iter_remove(&iter);
1965                 }
1966                 g_hash_table_unref(check_tbl);
1967         }
1968
1969         if (filter_tbl) {
1970                 g_hash_table_iter_init(&iter, filter_tbl);
1971
1972                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1973                         key_item = (char *)key;
1974                         if (key_item)
1975                                 free(key_item);
1976                         else
1977                                 _E("filter_tbl, key_item is NULL");
1978
1979                         val_item = (char *)value;
1980                         if (val_item)
1981                                 free(val_item);
1982                         else
1983                                 _E("filter_tbl, val_item is NULL");
1984
1985                         g_hash_table_iter_remove(&iter);
1986                 }
1987                 g_hash_table_unref(filter_tbl);
1988         }
1989
1990         if (last_data_tbl) {
1991                 g_hash_table_iter_init(&iter, last_data_tbl);
1992
1993                 while (g_hash_table_iter_next(&iter, &key, &value)) {
1994                         key_item = (char *)key;
1995                         if (key_item)
1996                                 free(key_item);
1997                         else
1998                                 _E("last_data_tbl, val_item is NULL");
1999
2000                         val_item = (char *)value;
2001                         if (val_item)
2002                                 free(val_item);
2003                         else
2004                                 _E("last_data_tbl, val_item is NULL");
2005                         g_hash_table_iter_remove(&iter);
2006                 }
2007                 g_hash_table_unref(check_tbl);
2008         }
2009
2010         FREE_AND_NULL(s_info.own_name_system_bus);
2011         FREE_AND_NULL(s_info.own_name_session_bus);
2012
2013         return 0;
2014 }