client/ctsvc_client_noti.c

   1 /*
   2  * Contacts Service
   3  *
   4  * Copyright (c) 2010 - 2012 Samsung Electronics Co., Ltd. All rights reserved.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  * http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *
  18  */
  19
  20 #include <pims-ipc.h>
  21 #include <pims-ipc-svc.h>
  22 #include <pims-ipc-data.h>
  23
  24 #include "contacts.h"
  25 #include "ctsvc_internal.h"
  26 #include "ctsvc_ipc_define.h"
  27 #include "ctsvc_mutex.h"
  28 #include "ctsvc_client_ipc.h"
  29 #include "contacts_extension.h"
  30
  31 typedef struct
  32 {
  33         contacts_db_change_cb_with_info cb;
  34         void *user_data;
  35 }db_callback_info_s;
  36
  37 typedef struct
  38 {
  39         char *view_uri;
  40         GSList *callbacks;
  41 }subscribe_info_s;
  42
  43 static int __ipc_pubsub_ref = 0;
  44 static pims_ipc_h __ipc = NULL;
  45 static GSList *__db_change_subscribe_list = NULL;
  46
  47 static void __ctsvc_db_subscriber_callback(pims_ipc_h ipc, pims_ipc_data_h data, void *user_data)
  48 {
  49         unsigned int size = 0;
  50         char *str = NULL;
  51         subscribe_info_s *info = user_data;
  52
  53         if (data)
  54                 str = (char*)pims_ipc_data_get(data, &size);
  55
  56         if (!str) {
  57                 CTS_ERR("There is no changed data");
  58                 return;
  59         }
  60
  61         if (info) {
  62                 GSList *l;
  63                 for (l = info->callbacks;l;l=l->next) {
  64                         db_callback_info_s *cb_info = l->data;
  65                         if (cb_info->cb) {
  66                                 cb_info->cb(info->view_uri, str, cb_info->user_data);
  67                         }
  68                 }
  69         }
  70 }
  71
  72 // This API should be called in CTS_MUTEX_PIMS_IPC_PUBSUB mutex
  73 pims_ipc_h ctsvc_ipc_get_handle_for_change_subsciption()
  74 {
  75         return __ipc;
  76 }
  77
  78 int ctsvc_ipc_create_for_change_subscription()
  79 {
  80         ctsvc_mutex_lock(CTS_MUTEX_PIMS_IPC_PUBSUB);
  81
  82         if (0 < __ipc_pubsub_ref) {
  83                 __ipc_pubsub_ref++;
  84                 ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
  85                 return CONTACTS_ERROR_NONE;
  86         }
  87
  88         if (!__ipc) {
  89                 __ipc = pims_ipc_create_for_subscribe(CTSVC_IPC_SOCKET_PATH_FOR_CHANGE_SUBSCRIPTION);
  90                 if (!__ipc) {
  91                         CTS_ERR("pims_ipc_create_for_subscribe error\n");
  92                         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
  93                         return CONTACTS_ERROR_IPC;
  94                 }
  95         }
  96         __ipc_pubsub_ref++;
  97         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
  98         return CONTACTS_ERROR_NONE;
  99 }
 100
 101 int ctsvc_ipc_destroy_for_change_subscription()
 102 {
 103         ctsvc_mutex_lock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 104
 105         if (1 == __ipc_pubsub_ref) {
 106                 pims_ipc_destroy_for_subscribe(__ipc);
 107                 __ipc = NULL;
 108         }
 109         else if (1 < __ipc_pubsub_ref) {
 110                 CTS_DBG("ctsvc pubsub ipc ref count : %d", __ipc_pubsub_ref);
 111         }
 112         else {
 113                 CTS_DBG("System : please call connection APIs, connection count is (%d)", __ipc_pubsub_ref);
 114                 ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 115                 return CONTACTS_ERROR_INVALID_PARAMETER;
 116         }
 117
 118         __ipc_pubsub_ref--;
 119
 120         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 121         return CONTACTS_ERROR_NONE;
 122 }
 123
 124 API int contacts_db_add_changed_cb_with_info(const char* view_uri,
 125                 contacts_db_change_cb_with_info cb, void* user_data)
 126 {
 127         GSList *it = NULL;
 128         subscribe_info_s *info = NULL;
 129         db_callback_info_s *cb_info;
 130         bool result = false;
 131         int ret;
 132
 133         RETVM_IF(view_uri == NULL, CONTACTS_ERROR_INVALID_PARAMETER, "view_uri is NULL");
 134         RETVM_IF(cb == NULL, CONTACTS_ERROR_INVALID_PARAMETER, "cb is NULL");
 135
 136         if (strncmp(view_uri, CTSVC_VIEW_URI_PHONELOG, strlen(CTSVC_VIEW_URI_PHONELOG)) == 0) {
 137                 ret = ctsvc_ipc_client_check_permission(CTSVC_PERMISSION_PHONELOG_READ, &result);
 138                 RETVM_IF(ret != CONTACTS_ERROR_NONE, ret, "ctsvc_ipc_client_check_permission fail (%d)", ret);
 139                 RETVM_IF(result == false, CONTACTS_ERROR_PERMISSION_DENIED, "Permission denied (phonelog read)");
 140         }
 141         else if (strncmp(view_uri, CTSVC_VIEW_URI_PERSON, strlen(CTSVC_VIEW_URI_PERSON)) == 0) {
 142                 ret = ctsvc_ipc_client_check_permission(CTSVC_PERMISSION_CONTACT_READ, &result);
 143                 RETVM_IF(ret != CONTACTS_ERROR_NONE, ret, "ctsvc_ipc_client_check_permission fail (%d)", ret);
 144                 RETVM_IF(result == false, CONTACTS_ERROR_PERMISSION_DENIED, "Permission denied (contact read)");
 145         }
 146         else {
 147                 CTS_ERR("We support this API for only %s and %s", CTSVC_VIEW_URI_PERSON, CTSVC_VIEW_URI_PHONELOG);
 148                 return CONTACTS_ERROR_INVALID_PARAMETER;
 149         }
 150
 151         ctsvc_mutex_lock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 152
 153         for (it=__db_change_subscribe_list;it;it=it->next) {
 154                 if (!it->data) continue;
 155
 156                 info = it->data;
 157                 if (strcmp(info->view_uri, view_uri) == 0)
 158                         break;
 159                 else
 160                         info = NULL;
 161         }
 162
 163         if (!info) {
 164                 info = calloc(1, sizeof(subscribe_info_s));
 165                 if (NULL == info) {
 166                         CTS_ERR("calloc() Failed");
 167                         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 168                         return CONTACTS_ERROR_OUT_OF_MEMORY;
 169                 }
 170
 171                 if (pims_ipc_subscribe(__ipc, CTSVC_IPC_SUBSCRIBE_MODULE, (char*)view_uri,
 172                                         __ctsvc_db_subscriber_callback, (void*)info) != 0) {
 173                         CTS_ERR("pims_ipc_subscribe error\n");
 174                         free(info);
 175                         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 176                         return CONTACTS_ERROR_IPC;
 177                 }
 178                 info->view_uri = strdup(view_uri);
 179                 __db_change_subscribe_list = g_slist_append(__db_change_subscribe_list, info);
 180         }
 181         else {
 182                 GSList *l;
 183                 for (l = info->callbacks;l;l=l->next) {
 184                         db_callback_info_s *cb_info = l->data;
 185                         if (cb_info->cb == cb && cb_info->user_data == user_data) {
 186                                 CTS_ERR("The same callback(%s) is already exist", view_uri);
 187                                 ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 188                                 return CONTACTS_ERROR_INVALID_PARAMETER;
 189                         }
 190                 }
 191         }
 192
 193         cb_info = calloc(1, sizeof(db_callback_info_s));
 194         cb_info->user_data = user_data;
 195         cb_info->cb = cb;
 196         info->callbacks = g_slist_append(info->callbacks, cb_info);
 197
 198         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 199         return CONTACTS_ERROR_NONE;
 200 }
 201
 202 API int contacts_db_remove_changed_cb_with_info(const char* view_uri,
 203                 contacts_db_change_cb_with_info cb, void* user_data)
 204 {
 205         GSList *it = NULL;
 206         subscribe_info_s *info = NULL;
 207
 208         RETVM_IF(view_uri == NULL, CONTACTS_ERROR_INVALID_PARAMETER, "view_uri is NULL");
 209         RETVM_IF(cb == NULL, CONTACTS_ERROR_INVALID_PARAMETER, "cb is NULL");
 210
 211         if (strcmp(view_uri, CTSVC_VIEW_URI_PHONELOG) != 0 &&
 212                         strcmp(view_uri, CTSVC_VIEW_URI_PERSON) != 0) {
 213                 CTS_ERR("We support this API for only %s and %s", CTSVC_VIEW_URI_PERSON, CTSVC_VIEW_URI_PHONELOG);
 214                 return CONTACTS_ERROR_INVALID_PARAMETER;
 215         }
 216
 217         ctsvc_mutex_lock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 218
 219         for (it=__db_change_subscribe_list;it;it=it->next) {
 220                 if (!it->data) continue;
 221
 222                 info = it->data;
 223                 if (strcmp(info->view_uri, view_uri) == 0)
 224                         break;
 225                 else
 226                         info = NULL;
 227         }
 228
 229         if (info) {
 230                 GSList *l;
 231                 for(l = info->callbacks;l;l=l->next) {
 232                         db_callback_info_s *cb_info = l->data;
 233                         if (cb == cb_info->cb && user_data == cb_info->user_data) {
 234                                 info->callbacks = g_slist_remove(info->callbacks, cb_info);
 235                                 free(cb_info);
 236                                 break;
 237                         }
 238                 }
 239                 if (g_slist_length(info->callbacks) == 0) {
 240                         pims_ipc_unsubscribe(__ipc, CTSVC_IPC_SUBSCRIBE_MODULE, info->view_uri);
 241                         __db_change_subscribe_list = g_slist_remove(__db_change_subscribe_list, info);
 242                         free(info->view_uri);
 243                         free(info);
 244                 }
 245         }
 246
 247         ctsvc_mutex_unlock(CTS_MUTEX_PIMS_IPC_PUBSUB);
 248         return CONTACTS_ERROR_NONE;
 249 }