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 #include <storage.h>
  26 #ifdef _USE_TV_PROFILE
  27 #include <system_info.h>
  28 #endif
  29
  30 static char *g_old_path = NULL;
  31
  32 int _media_util_check_file_exist(const char *path)
  33 {
  34         int exist;
  35
  36         /* check the file exits actually */
  37         exist = open(path, O_RDONLY);
  38         if (exist < 0) {
  39                 media_content_sec_debug("path [%s]", path);
  40                 media_content_stderror("open file fail");
  41                 if (errno == EACCES || errno == EPERM)
  42                         return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
  43                 else
  44                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
  45         }
  46
  47         close(exist);
  48
  49         return MEDIA_CONTENT_ERROR_NONE;
  50 }
  51
  52 int _media_util_check_ignore_file(const char *path, bool *ignore)
  53 {
  54         media_content_retvm_if(!STRING_VALID(path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid path");
  55
  56         *ignore = FALSE;
  57
  58         if (strstr(path, "/.") != NULL) {
  59                 *ignore = TRUE;
  60                 media_content_error("hidden path");
  61                 media_content_sec_debug("path : %s", path);
  62         }
  63
  64         return MEDIA_CONTENT_ERROR_NONE;
  65 }
  66
  67 int _media_util_check_ignore_dir(const char *dir_path, bool *ignore)
  68 {
  69         int ret = MEDIA_CONTENT_ERROR_NONE;
  70         media_svc_storage_type_e storage_type = 0;
  71         const char *scan_ignore = ".scan_ignore";
  72         bool find = false;
  73
  74         media_content_sec_debug("dir_path : %s", dir_path);
  75
  76         media_content_retvm_if(!STRING_VALID(dir_path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid dir_path");
  77
  78         *ignore = FALSE;
  79         /*1. Check Hidden Directory*/
  80         if (strstr(dir_path, "/.") != NULL) {
  81                 *ignore = TRUE;
  82                 media_content_error("hidden path");
  83                 return MEDIA_CONTENT_ERROR_NONE;
  84         }
  85
  86         /*2. Check Scan Ignore Directory*/
  87         ret = media_svc_get_storage_type(dir_path, &storage_type, tzplatform_getuid(TZ_USER_NAME));
  88         if (ret != MS_MEDIA_ERR_NONE) {
  89                 media_content_error("media_svc_get_storage_type failed : %d", ret);
  90                 return _content_error_capi(MEDIA_CONTENT_TYPE, ret);
  91         }
  92
  93         DIR *dp = NULL;
  94         struct dirent entry;
  95         struct dirent *result = NULL;
  96
  97         char *leaf_path = NULL;
  98         char search_path[4096] = {0, };
  99
 100         strncpy(search_path, dir_path, strlen(dir_path));
 101         while (STRING_VALID(search_path)) {
 102                 dp = opendir(search_path);
 103                 if (dp == NULL) {
 104                         *ignore = TRUE;
 105                         media_content_error("Open Directory fail");
 106                         media_content_sec_debug("Open fail path[%s]", search_path);
 107                         if (errno == EACCES || errno == EPERM)
 108                                 return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
 109                         else
 110                                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 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                         if (result == NULL)
 117                                 break;
 118
 119                         if (STRING_VALID(entry.d_name) && (strcmp(entry.d_name, scan_ignore) == 0)) {
 120                                 media_content_error("Find Ignore path");
 121                                 media_content_sec_debug("Ignore path[%s]", search_path);
 122                                 find = TRUE;
 123                                 break;
 124                         } else {
 125                                 /*media_content_sec_debug("entry.d_name[%s]", entry.d_name);*/
 126                                 continue;
 127                         }
 128                 }
 129
 130                 if (dp) closedir(dp);
 131                 dp = NULL;
 132
 133                 if (find) {
 134                         *ignore = TRUE;
 135                         break;
 136                 } else {
 137                         /*If root path, Stop Scanning*/
 138                         if ((storage_type == MEDIA_SVC_STORAGE_INTERNAL) && (STRING_VALID(MEDIA_ROOT_PATH_INTERNAL) && strcmp(search_path, MEDIA_ROOT_PATH_INTERNAL) == 0)) {
 139                                 break;
 140                         } else if ((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (STRING_VALID(MEDIA_ROOT_PATH_SDCARD)) && (strcmp(search_path, MEDIA_ROOT_PATH_SDCARD) == 0)) {
 141                                 break;
 142                         } else if (storage_type == MEDIA_SVC_STORAGE_EXTERNAL_USB) {
 143                                 char *parent_folder_path = NULL;
 144                                 bool is_root = FALSE;
 145
 146                                 parent_folder_path = g_path_get_dirname(search_path);
 147                                 if (STRING_VALID(MEDIA_ROOT_PATH_USB) && (strcmp(parent_folder_path, MEDIA_ROOT_PATH_USB) == 0))
 148                                         is_root = TRUE;
 149
 150                                 SAFE_FREE(parent_folder_path);
 151
 152                                 if (is_root == TRUE)
 153                                         break;
 154                         }
 155 #ifdef _USE_SENIOR_MODE
 156                         if (_media_content_is_support_senior_mode()) {
 157                                 if ((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (strcmp(search_path, MEDIA_ROOT_PATH_SENIOR_MODE) == 0))
 158                                         break;
 159                         }
 160 #endif
 161
 162                         leaf_path = strrchr(search_path, '/');
 163                         if (leaf_path != NULL) {
 164                                 int seek_len = leaf_path -search_path;
 165                                 search_path[seek_len] = '\0';
 166                                 /*media_content_sec_debug("go to other dir [%s]", search_path);*/
 167                         } else {
 168                                 media_content_debug("Fail to find leaf path");
 169                                 break;
 170                         }
 171                 }
 172         }
 173
 174         return MEDIA_CONTENT_ERROR_NONE;
 175 }
 176
 177 int _media_content_replace_path_in_condition(const char *condition, char *replace_condition)
 178 {
 179         int ret = MEDIA_CONTENT_ERROR_NONE;
 180
 181         if (!STRING_VALID(g_old_path)) {
 182                 ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &g_old_path);
 183                 if (ret != STORAGE_ERROR_NONE) {
 184                         media_content_error("storage_get_directory failed");
 185                         return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 186                 }
 187         }
 188
 189         media_content_sec_debug("Old condition[%s]", condition);
 190         if (((strstr(condition, "PATH") != NULL) || (strstr(condition, "path") != NULL)) && (strstr(condition, g_old_path) != NULL)) {
 191                 char *cond = strdup(condition);
 192                 char *repl_cond_ptr = replace_condition;
 193                 char *cond_ptr = cond;
 194
 195                 if (cond_ptr == NULL) {
 196                         media_content_error("memory allocation failed");
 197                         return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 198                 }
 199                 while (*cond_ptr != '\0') {
 200                         if (strlen(cond_ptr) < strlen(g_old_path)) {
 201                                 memcpy(repl_cond_ptr, cond_ptr, strlen(cond_ptr));
 202                                 break;
 203                         }
 204                         /* replace path only and keep other condition */
 205                         if (memcmp(cond_ptr, g_old_path, strlen(g_old_path)) == 0) {
 206                                 memcpy(repl_cond_ptr, tzplatform_getenv(TZ_USER_CONTENT), strlen(tzplatform_getenv(TZ_USER_CONTENT)));
 207                                 cond_ptr += strlen(g_old_path);
 208                                 repl_cond_ptr += strlen(tzplatform_getenv(TZ_USER_CONTENT));
 209                         } else {
 210                                 *repl_cond_ptr = *cond_ptr;
 211                                 cond_ptr++;
 212                                 repl_cond_ptr++;
 213                         }
 214                 }
 215                 SAFE_FREE(cond);
 216         } else {
 217                 snprintf(replace_condition, MAX_QUERY_SIZE, "%s", condition);
 218         }
 219
 220         if (!STRING_VALID(replace_condition)) {
 221                 media_content_error("replace failed");
 222                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 223         }
 224
 225         media_content_sec_debug("repl cond[%s]", replace_condition);
 226
 227         return MEDIA_CONTENT_ERROR_NONE;
 228 }
 229
 230 int _media_content_rollback_path_in_condition(const char *condition, char *replace_condition)
 231 {
 232         int ret = MEDIA_CONTENT_ERROR_NONE;
 233
 234         if (!STRING_VALID(g_old_path)) {
 235                 ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &g_old_path);
 236                 if (ret != STORAGE_ERROR_NONE) {
 237                         media_content_error("storage_get_directory failed");
 238                         return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 239                 }
 240         }
 241
 242         media_content_sec_debug("Old condition[%s]", condition);
 243         if (((strstr(condition, "PATH") != NULL) || (strstr(condition, "path") != NULL)) && (strstr(condition, tzplatform_getenv(TZ_USER_CONTENT)) != NULL)) {
 244                 char *cond = strdup(condition);
 245                 char *repl_cond_ptr = replace_condition;
 246                 char *cond_ptr = cond;
 247
 248                 if (cond_ptr == NULL) {
 249                         media_content_error("memory allocation failed");
 250                         return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 251                 }
 252                 while (*cond_ptr != '\0') {
 253                         if (strlen(cond_ptr) < strlen(tzplatform_getenv(TZ_USER_CONTENT))) {
 254                                 memcpy(repl_cond_ptr, cond_ptr, strlen(cond_ptr));
 255                                 break;
 256                         }
 257                         /* replace path only and keep other condition */
 258                         if (memcmp(cond_ptr, tzplatform_getenv(TZ_USER_CONTENT), strlen(tzplatform_getenv(TZ_USER_CONTENT))) == 0) {
 259                                 memcpy(repl_cond_ptr, g_old_path, strlen(g_old_path));
 260                                 cond_ptr += strlen(tzplatform_getenv(TZ_USER_CONTENT));
 261                                 repl_cond_ptr += strlen(g_old_path);
 262                         } else {
 263                                 *repl_cond_ptr = *cond_ptr;
 264                                 cond_ptr++;
 265                                 repl_cond_ptr++;
 266                         }
 267                 }
 268                 SAFE_FREE(cond);
 269         } else {
 270                 snprintf(replace_condition, MAX_QUERY_SIZE, "%s", condition);
 271         }
 272
 273         if (!STRING_VALID(replace_condition)) {
 274                 media_content_error("replace failed");
 275                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 276         }
 277
 278         media_content_sec_debug("repl cond[%s]", replace_condition);
 279
 280         return MEDIA_CONTENT_ERROR_NONE;
 281 }
 282
 283 int _media_content_replace_path(const char *path, char *replace_path)
 284 {
 285         int ret = MEDIA_CONTENT_ERROR_NONE;
 286
 287         if (!STRING_VALID(g_old_path)) {
 288                 ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &g_old_path);
 289                 if (ret != STORAGE_ERROR_NONE) {
 290                         media_content_error("storage_get_directory failed");
 291                         return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 292                 }
 293         }
 294
 295         if (strncmp(path, g_old_path, strlen(g_old_path)) == 0) {
 296                 media_content_sec_debug("Old path[%s]", path);
 297                 snprintf(replace_path, MAX_QUERY_SIZE, "%s%s", tzplatform_getenv(TZ_USER_CONTENT), path + strlen(g_old_path));
 298         } else {
 299                 snprintf(replace_path, MAX_QUERY_SIZE, "%s", path);
 300         }
 301
 302         if (!STRING_VALID(replace_path)) {
 303                 media_content_error("replace failed");
 304                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 305         }
 306
 307         return MEDIA_CONTENT_ERROR_NONE;
 308 }
 309
 310 int _media_content_rollback_path(const char *path, char *replace_path)
 311 {
 312         int ret = MEDIA_CONTENT_ERROR_NONE;
 313
 314         if (!STRING_VALID(g_old_path)) {
 315                 ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &g_old_path);
 316                 if (ret != STORAGE_ERROR_NONE) {
 317                         media_content_error("storage_get_directory failed");
 318                         return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 319                 }
 320         }
 321
 322         if (strncmp(path, tzplatform_getenv(TZ_USER_CONTENT), strlen(tzplatform_getenv(TZ_USER_CONTENT))) == 0) {
 323                 media_content_sec_debug("new path[%s]", path);
 324                 snprintf(replace_path, MAX_QUERY_SIZE, "%s%s", g_old_path, path + strlen(tzplatform_getenv(TZ_USER_CONTENT)));
 325         } else {
 326                 snprintf(replace_path, MAX_QUERY_SIZE, "%s", path);
 327         }
 328
 329         if (!STRING_VALID(replace_path)) {
 330                 media_content_error("replace failed");
 331                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 332         }
 333
 334         return MEDIA_CONTENT_ERROR_NONE;
 335 }
 336
 337 #ifdef _USE_SENIOR_MODE
 338 bool _media_content_is_support_senior_mode()
 339 {
 340         bool bSupportSeniorMode = false;
 341
 342         if (system_info_get_value_bool(SYSTEM_INFO_KEY_GET_SENIOR_MODE_SUPPORTED, &bSupportSeniorMode) != SYSTEM_INFO_ERROR_NONE) {
 343                 media_content_debug("Get senior mode support failed");
 344                 return false;
 345         }
 346         /* media_content_debug("Senior mode Support : [%d]", bSupportSeniorMode); */
 347         return bSupportSeniorMode;
 348 }
 349 #endif
 350