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(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_dir(const char *dir_path, bool *ignore)
  48 {
  49         int ret = MEDIA_CONTENT_ERROR_NONE;
  50         media_svc_storage_type_e storage_type = 0;
  51         const char *scan_ignore = ".scan_ignore";
  52         bool find = false;
  53
  54         media_content_sec_debug("dir_path : %s", dir_path);
  55
  56         media_content_retvm_if(!STRING_VALID(dir_path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid dir_path");
  57
  58         *ignore = FALSE;
  59         /*1. Check Hidden Directory*/
  60         if(strstr(dir_path, "/."))
  61         {
  62                 *ignore = TRUE;
  63                 media_content_debug("hidden path");
  64                 return MEDIA_CONTENT_ERROR_NONE;
  65         }
  66
  67         /*2. Check Scan Ignore Directory*/
  68         ret = media_svc_get_storage_type(dir_path, &storage_type, tzplatform_getuid(TZ_USER_NAME));
  69         if(ret != MS_MEDIA_ERR_NONE)
  70         {
  71                 media_content_error("media_svc_get_storage_type failed : %d", ret);
  72                 return _content_error_capi(MEDIA_CONTENT_TYPE, ret);
  73         }
  74
  75         DIR *dp = NULL;
  76         struct dirent entry;
  77         struct dirent *result = NULL;
  78
  79         char *leaf_path = NULL;
  80         char search_path[4096] = {0, };
  81
  82         strncpy(search_path, dir_path, strlen(dir_path));
  83         while(STRING_VALID(search_path))
  84         {
  85                 dp = opendir(search_path);
  86                 media_content_retvm_if(dp == NULL, MEDIA_CONTENT_ERROR_INVALID_OPERATION, "Open Directory fail");
  87
  88                 while (!readdir_r(dp, &entry, &result))
  89                 {
  90                         if (result == NULL)
  91                                 break;
  92
  93                         if(STRING_VALID(entry.d_name) && (strcmp(entry.d_name, scan_ignore) == 0))
  94                         {
  95                                 media_content_info("Find Ignore path");
  96                                 media_content_sec_debug("Ignore path[%s]", search_path);
  97                                 find = TRUE;
  98                                 break;
  99                         }
 100                         else
 101                         {
 102                                 //media_content_sec_debug("entry.d_name[%s]", entry.d_name);
 103                                 continue;
 104                         }
 105                 }
 106
 107                 if (dp) closedir(dp);
 108                 dp = NULL;
 109
 110                 if(find)
 111                 {
 112                         *ignore = TRUE;
 113                         break;
 114                 }
 115                 else
 116                 {
 117                         /*If root path, Stop Scanning*/
 118                         if((storage_type == MEDIA_SVC_STORAGE_INTERNAL) && (strcmp(search_path, tzplatform_getenv(TZ_USER_CONTENT)) == 0))
 119                         {
 120                                 //media_content_debug("Internal root path. Stop Scanning. Not found Ignore information");
 121                                 break;
 122                         }
 123                         else if((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (strcmp(search_path, MEDIA_ROOT_PATH_SDCARD) == 0))
 124                         {
 125                                 //media_content_debug("Enternal root path. Stop Scanning. Not found Ignore information");
 126                                 break;
 127                         }
 128
 129                         leaf_path = strrchr(search_path, '/');
 130                         if(leaf_path != NULL)
 131                         {
 132                                 int seek_len = leaf_path -search_path;
 133                                 search_path[seek_len] = '\0';
 134                                 //media_content_sec_debug("go to other dir [%s]", search_path);
 135                         }
 136                         else
 137                         {
 138                                 media_content_debug("Fail to find leaf path");
 139                                 break;
 140                         }
 141                 }
 142         }
 143
 144         return MEDIA_CONTENT_ERROR_NONE;
 145 }