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         close(exist);
  42
  43         return MEDIA_CONTENT_ERROR_NONE;
  44 }
  45
  46 int _media_util_check_ignore_file(const char *path, bool *ignore)
  47 {
  48         media_content_retvm_if(!STRING_VALID(path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid path");
  49
  50         *ignore = FALSE;
  51
  52         if (strstr(path, "/.") != NULL) {
  53                 *ignore = TRUE;
  54                 media_content_error("hidden path");
  55                 media_content_sec_debug("path : %s", path);
  56         }
  57
  58         return MEDIA_CONTENT_ERROR_NONE;
  59 }
  60
  61 int _media_util_check_ignore_dir(const char *dir_path, bool *ignore)
  62 {
  63         int ret = MEDIA_CONTENT_ERROR_NONE;
  64         media_svc_storage_type_e storage_type = 0;
  65         const char *scan_ignore = ".scan_ignore";
  66         bool find = false;
  67
  68         media_content_sec_debug("dir_path : %s", dir_path);
  69
  70         media_content_retvm_if(!STRING_VALID(dir_path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid dir_path");
  71
  72         *ignore = FALSE;
  73         /*1. Check Hidden Directory*/
  74         if (strstr(dir_path, "/.") != NULL) {
  75                 *ignore = TRUE;
  76                 media_content_error("hidden path");
  77                 return MEDIA_CONTENT_ERROR_NONE;
  78         }
  79
  80         /*2. Check Scan Ignore Directory*/
  81         ret = media_svc_get_storage_type(dir_path, &storage_type, tzplatform_getuid(TZ_USER_NAME));
  82         if (ret != MS_MEDIA_ERR_NONE) {
  83                 media_content_error("media_svc_get_storage_type failed : %d", ret);
  84                 return _content_error_capi(MEDIA_CONTENT_TYPE, ret);
  85         }
  86
  87         DIR *dp = NULL;
  88         struct dirent entry;
  89         struct dirent *result = NULL;
  90
  91         char *leaf_path = NULL;
  92         char search_path[4096] = {0, };
  93
  94         strncpy(search_path, dir_path, strlen(dir_path));
  95         while (STRING_VALID(search_path)) {
  96                 dp = opendir(search_path);
  97                 if (dp == NULL) {
  98                         *ignore = TRUE;
  99                         media_content_error("Open Directory fail");
 100                         media_content_sec_debug("Open fail path[%s]", search_path);
 101                         if (errno == EACCES || errno == EPERM)
 102                                 return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
 103                         else
 104                                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 105                 }
 106
 107                 media_content_retvm_if(dp == NULL, MEDIA_CONTENT_ERROR_INVALID_OPERATION, "Open Directory fail");
 108
 109                 while (!readdir_r(dp, &entry, &result)) {
 110                         if (result == NULL)
 111                                 break;
 112
 113                         if (STRING_VALID(entry.d_name) && (strcmp(entry.d_name, scan_ignore) == 0)) {
 114                                 media_content_error("Find Ignore path");
 115                                 media_content_sec_debug("Ignore path[%s]", search_path);
 116                                 find = TRUE;
 117                                 break;
 118                         } else {
 119                                 /*media_content_sec_debug("entry.d_name[%s]", entry.d_name);*/
 120                                 continue;
 121                         }
 122                 }
 123
 124                 if (dp) closedir(dp);
 125                 dp = NULL;
 126
 127                 if (find) {
 128                         *ignore = TRUE;
 129                         break;
 130                 } else {
 131                         /*If root path, Stop Scanning*/
 132                         if ((storage_type == MEDIA_SVC_STORAGE_INTERNAL) && (STRING_VALID(MEDIA_ROOT_PATH_INTERNAL) && strcmp(search_path, MEDIA_ROOT_PATH_INTERNAL) == 0)) {
 133                                 break;
 134                         } else if ((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (STRING_VALID(MEDIA_ROOT_PATH_SDCARD)) && (strcmp(search_path, MEDIA_ROOT_PATH_SDCARD) == 0)) {
 135                                 break;
 136                         } else if (storage_type == MEDIA_SVC_STORAGE_EXTERNAL_USB) {
 137                                 char *parent_folder_path = NULL;
 138                                 bool is_root = FALSE;
 139
 140                                 parent_folder_path = g_path_get_dirname(search_path);
 141                                 if (STRING_VALID(MEDIA_ROOT_PATH_USB) && (strcmp(parent_folder_path, MEDIA_ROOT_PATH_USB) == 0))
 142                                         is_root = TRUE;
 143
 144                                 SAFE_FREE(parent_folder_path);
 145
 146                                 if (is_root == TRUE)
 147                                         break;
 148                         }
 149
 150                         leaf_path = strrchr(search_path, '/');
 151                         if (leaf_path != NULL) {
 152                                 int seek_len = leaf_path -search_path;
 153                                 search_path[seek_len] = '\0';
 154                                 /*media_content_sec_debug("go to other dir [%s]", search_path);*/
 155                         } else {
 156                                 media_content_debug("Fail to find leaf path");
 157                                 break;
 158                         }
 159                 }
 160         }
 161
 162         return MEDIA_CONTENT_ERROR_NONE;
 163 }