src/media_util_private.c

   1 /*
   2 * Copyright (c) 2011 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 #include <dirent.h>
  18 #include <string.h>
  19 #include <sys/stat.h>
  20 #include <sys/types.h>
  21 #include <fcntl.h>
  22 #include <media_util_private.h>
  23 #include <media_info_private.h>
  24 #include <media_content_type.h>
  25
  26 int _media_util_check_file_exist(const char *path)
  27 {
  28         int exist;
  29
  30         /* check the file exits actually */
  31         exist = open(path, O_RDONLY);
  32         if(exist < 0) {
  33                 media_content_sec_debug("path [%s]", path);
  34                 media_content_stderror("open file fail");
  35                 if (errno == EACCES || errno == EPERM) {
  36                         return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
  37                 } else {
  38                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
  39                 }
  40         }
  41
  42         close(exist);
  43
  44         return MEDIA_CONTENT_ERROR_NONE;
  45 }
  46
  47 int _media_util_check_ignore_file(const char *path, bool *ignore)
  48 {
  49         media_content_retvm_if(!STRING_VALID(path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid path");
  50
  51         *ignore = FALSE;
  52
  53         if(strstr(path, "/.") != NULL)
  54         {
  55                 *ignore = TRUE;
  56                 media_content_error("hidden path");
  57                 media_content_sec_debug("path : %s", path);
  58         }
  59
  60         return MEDIA_CONTENT_ERROR_NONE;
  61 }
  62
  63 int _media_util_check_ignore_dir(const char *dir_path, bool *ignore)
  64 {
  65         int ret = MEDIA_CONTENT_ERROR_NONE;
  66         media_svc_storage_type_e storage_type = 0;
  67         const char *scan_ignore = ".scan_ignore";
  68         bool find = false;
  69
  70         media_content_sec_debug("dir_path : %s", dir_path);
  71
  72         media_content_retvm_if(!STRING_VALID(dir_path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid dir_path");
  73
  74         *ignore = FALSE;
  75         /*1. Check Hidden Directory*/
  76         if(strstr(dir_path, "/.") != NULL)
  77         {
  78                 *ignore = TRUE;
  79                 media_content_error("hidden path");
  80                 return MEDIA_CONTENT_ERROR_NONE;
  81         }
  82
  83         /*2. Check Scan Ignore Directory*/
  84         ret = media_svc_get_storage_type(dir_path, &storage_type);
  85         if(ret != MS_MEDIA_ERR_NONE)
  86         {
  87                 media_content_error("media_svc_get_storage_type failed : %d", ret);
  88                 return _content_error_capi(MEDIA_CONTENT_TYPE, ret);
  89         }
  90
  91         DIR *dp = NULL;
  92         struct dirent entry;
  93         struct dirent *result = NULL;
  94
  95         char *leaf_path = NULL;
  96         char search_path[4096] = {0, };
  97
  98         strncpy(search_path, dir_path, strlen(dir_path));
  99         while(STRING_VALID(search_path))
 100         {
 101                 dp = opendir(search_path);
 102                 if (dp == NULL) {
 103                         *ignore = TRUE;
 104                         media_content_error("Open Directory fail");
 105                         media_content_sec_debug("Open fail path[%s]", search_path);
 106                         if (errno == EACCES || errno == EPERM) {
 107                                 return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
 108                         } else {
 109                                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 110                         }
 111                 }
 112
 113                 media_content_retvm_if(dp == NULL, MEDIA_CONTENT_ERROR_INVALID_OPERATION, "Open Directory fail");
 114
 115                 while (!readdir_r(dp, &entry, &result))
 116                 {
 117                         if (result == NULL)
 118                                 break;
 119
 120                         if(STRING_VALID(entry.d_name) && (strcmp(entry.d_name, scan_ignore) == 0))
 121                         {
 122                                 media_content_error("Find Ignore path");
 123                                 media_content_sec_debug("Ignore path[%s]", search_path);
 124                                 find = TRUE;
 125                                 break;
 126                         }
 127                         else
 128                         {
 129                                 //media_content_sec_debug("entry.d_name[%s]", entry.d_name);
 130                                 continue;
 131                         }
 132                 }
 133
 134                 if (dp) closedir(dp);
 135                 dp = NULL;
 136
 137                 if(find)
 138                 {
 139                         *ignore = TRUE;
 140                         break;
 141                 }
 142                 else
 143                 {
 144                         /*If root path, Stop Scanning*/
 145                         if((storage_type == MEDIA_SVC_STORAGE_INTERNAL) && (strcmp(search_path, MEDIA_ROOT_PATH_INTERNAL) == 0))
 146                         {
 147                                 break;
 148                         }
 149                         else if((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (strcmp(search_path, MEDIA_ROOT_PATH_SDCARD) == 0))
 150                         {
 151                                 break;
 152                         }
 153                         else if(storage_type == MEDIA_SVC_STORAGE_EXTERNAL_USB)
 154                         {
 155                                 char *parent_folder_path = NULL;
 156                                 bool is_root = FALSE;
 157
 158                                 parent_folder_path = g_path_get_dirname(search_path);
 159                                 if (strcmp(search_path, MEDIA_ROOT_PATH_USB) == 0)
 160                                         is_root = TRUE;
 161
 162                                 SAFE_FREE(parent_folder_path);
 163
 164                                 if (is_root == TRUE)
 165                                         break;
 166                         }
 167
 168                         leaf_path = strrchr(search_path, '/');
 169                         if(leaf_path != NULL)
 170                         {
 171                                 int seek_len = leaf_path -search_path;
 172                                 search_path[seek_len] = '\0';
 173                                 //media_content_sec_debug("go to other dir [%s]", search_path);
 174                         }
 175                         else
 176                         {
 177                                 media_content_debug("Fail to find leaf path");
 178                                 break;
 179                         }
 180                 }
 181         }
 182
 183         return MEDIA_CONTENT_ERROR_NONE;
 184 }