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
  18 #include <dirent.h>
  19 #include <fcntl.h>
  20 #include <media_info_private.h>
  21 #include <storage.h>
  22 #include <system_info.h>
  23 #ifdef _USE_SENIOR_MODE
  24 #include <media_util_private.h>
  25 #endif
  26
  27 static int MEDIA_CONTENT_OTHER_SUPPORT = -1;
  28
  29 bool _media_util_check_support_media_type(const char *path)
  30 {
  31         int ret = SYSTEM_INFO_ERROR_NONE;
  32         int media_type = -1;
  33         bool is_supported = false;
  34
  35         media_content_retvm_if(!STRING_VALID(path), false, "path is empty");
  36
  37         if (MEDIA_CONTENT_OTHER_SUPPORT == -1) {
  38                 ret = system_info_get_platform_bool("http://tizen.org/feature/content.scanning.others", &is_supported);
  39                 if (ret != SYSTEM_INFO_ERROR_NONE) {
  40                         media_content_debug("SYSTEM_INFO_ERROR: content.scanning.others [%d]", ret);
  41                         return false;
  42                 }
  43
  44                 MEDIA_CONTENT_OTHER_SUPPORT = is_supported;
  45         }
  46
  47         /* If not, check media type */
  48         if (!MEDIA_CONTENT_OTHER_SUPPORT) {
  49                 ret = media_svc_get_media_type(path, &media_type);
  50                 media_content_retvm_if(ret != MS_MEDIA_ERR_NONE, false, "Failed to get media type");
  51
  52                 if (media_type == MEDIA_CONTENT_TYPE_OTHERS)
  53                         return false;
  54         }
  55
  56         return true;
  57 }
  58
  59 int _media_util_check_file_exist(const char *path)
  60 {
  61         int exist;
  62
  63         /* check the file exits actually */
  64         exist = open(path, O_RDONLY);
  65         if (exist < 0) {
  66                 media_content_sec_debug("path [%s]", path);
  67                 media_content_stderror("open file fail");
  68                 if (errno == EACCES || errno == EPERM)
  69                         return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
  70                 else
  71                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
  72         }
  73
  74         close(exist);
  75
  76         return MEDIA_CONTENT_ERROR_NONE;
  77 }
  78
  79 void _media_util_trim_path(const char *input_path, char **output_path)
  80 {
  81         char buf[4096] = {0,};
  82         char tmp[4096] = {0,};
  83         char *pos = NULL;
  84
  85         memset(buf, 0, sizeof(buf));
  86         if (!SAFE_STRLCPY(buf, input_path, sizeof(buf)))
  87                 media_content_sec_debug("Truncation occurred[%d]", strlen(input_path));
  88
  89         while ((pos = strstr(buf, "//")) != NULL) {
  90                 memset(tmp, 0, sizeof(tmp));
  91                 if (!SAFE_STRLCPY(tmp, buf, pos - buf + 1))
  92                         media_content_sec_debug("Truncation occurred");
  93                 SAFE_STRLCAT(tmp, pos + 1, sizeof(tmp));
  94
  95                 memset(buf, 0, sizeof(buf));
  96                 if (!SAFE_STRLCPY(buf, tmp, sizeof(buf)))
  97                         media_content_sec_debug("Truncation occurred[%d]", strlen(tmp));
  98         }
  99
 100         if (g_str_has_suffix(buf, "/"))
 101                 *output_path = g_strndup(buf, strlen(buf) - 1);
 102         else
 103                 *output_path = g_strdup(buf);
 104 }
 105
 106 int _media_util_check_ignore_file(const char *path, bool *ignore)
 107 {
 108         media_content_retvm_if(!STRING_VALID(path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid path");
 109
 110         *ignore = FALSE;
 111         char *tmp_path = NULL;
 112         char *org_path = NULL;
 113
 114 #ifndef _USE_TVPD_MODE
 115         char replace[MAX_PATH_LEN] = {0, };
 116 #endif
 117
 118         /* Check is exist (It may be the path to the deleted file) */
 119         if (!g_file_test(path, G_FILE_TEST_EXISTS)) {
 120                 media_content_sec_debug("removed path[%s]", path);
 121                 return MEDIA_CONTENT_ERROR_NONE;
 122         }
 123
 124         /* Check symbolic link file */
 125         if (g_file_test(path, G_FILE_TEST_IS_SYMLINK)) {
 126                 *ignore = TRUE;
 127                 media_content_error("symbolic link(file)");
 128                 media_content_sec_debug("path : %s", path);
 129                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 130         }
 131
 132         /* Check hidden path */
 133         if (strstr(path, "/.") != NULL) {
 134                 *ignore = TRUE;
 135                 media_content_error("hidden path");
 136                 media_content_sec_debug("path : %s", path);
 137                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 138         }
 139
 140         /* Check symbolic directory */
 141         tmp_path = realpath(path, NULL);
 142         /* Get trimmed path */
 143         _media_util_trim_path(path, &org_path);
 144
 145 #ifdef _USE_TVPD_MODE
 146         if (g_strcmp0(tmp_path, org_path) != 0) {
 147                 *ignore = TRUE;
 148                 media_content_error("symbolic link(directory)");
 149                 media_content_sec_debug("path[%s] real[%s]", org_path, tmp_path);
 150                 SAFE_FREE(tmp_path);
 151                 SAFE_FREE(org_path);
 152                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 153         }
 154 #else
 155         if (g_str_has_prefix(tmp_path, MEDIA_SHARE_PATH)) {
 156                 /* If shared dirctory, it should be change path to TZ_USER_SHARE from realpath */
 157                 snprintf(replace, MAX_PATH_LEN, "%s%s", tzplatform_getenv(TZ_USER_MEDIASHARED), tmp_path + strlen(MEDIA_SHARE_PATH));
 158                 if (g_strcmp0(replace, org_path) != 0) {
 159                         *ignore = TRUE;
 160                         media_content_error("symbolic link(directory)");
 161                         media_content_sec_debug("path[%s] real[%s]", org_path, tmp_path);
 162                         SAFE_FREE(tmp_path);
 163                         SAFE_FREE(org_path);
 164                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 165                 }
 166         } else {
 167                 if (g_strcmp0(tmp_path, org_path) != 0) {
 168                         *ignore = TRUE;
 169                         media_content_error("symbolic link(directory)");
 170                         media_content_sec_debug("path[%s] real[%s]", org_path, tmp_path);
 171                         SAFE_FREE(tmp_path);
 172                         SAFE_FREE(org_path);
 173                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 174                 }
 175         }
 176 #endif
 177         SAFE_FREE(tmp_path);
 178         SAFE_FREE(org_path);
 179
 180         return MEDIA_CONTENT_ERROR_NONE;
 181 }
 182
 183 int _media_util_check_ignore_dir(const char *dir_path, bool *ignore)
 184 {
 185         int ret = MEDIA_CONTENT_ERROR_NONE;
 186         media_svc_storage_type_e storage_type = 0;
 187         const char *scan_ignore = ".scan_ignore";
 188         bool find = false;
 189         GDir *dir = NULL;
 190         GError *error = NULL;
 191         const char *name;
 192
 193         media_content_sec_debug("dir_path : %s", dir_path);
 194
 195         media_content_retvm_if(!STRING_VALID(dir_path), MEDIA_CONTENT_ERROR_INVALID_PARAMETER, "invalid dir_path");
 196
 197         *ignore = FALSE;
 198         /*1. Check Hidden Directory*/
 199         if (strstr(dir_path, "/.") != NULL) {
 200                 *ignore = TRUE;
 201                 media_content_error("hidden path");
 202                 return MEDIA_CONTENT_ERROR_NONE;
 203         }
 204
 205         /*2. Check Scan Ignore Directory*/
 206         ret = media_svc_get_storage_type(dir_path, &storage_type, _content_get_uid());
 207         if (ret != MS_MEDIA_ERR_NONE) {
 208                 media_content_error("media_svc_get_storage_type failed : %d", ret);
 209                 return _content_error_capi(MEDIA_CONTENT_TYPE, ret);
 210         }
 211
 212         char *leaf_path = NULL;
 213         char search_path[MAX_PATH_LEN] = {0, };
 214
 215         memset(search_path, 0, sizeof(search_path));
 216         if (!SAFE_STRLCPY(search_path, dir_path, sizeof(search_path))) {
 217                 media_content_error("MEDIA_CONTENT_ERROR_INVALID_OPERATION(0x%08x)", MEDIA_CONTENT_ERROR_INVALID_OPERATION);
 218                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 219         }
 220
 221         while (STRING_VALID(search_path)) {
 222                 dir = g_dir_open(search_path, 0, &error);
 223                 if (dir != NULL && error == NULL) {
 224                         while ((name = g_dir_read_name(dir))) {
 225                                 if (g_strcmp0(name, scan_ignore) == 0) {
 226                                         media_content_sec_debug("Ignore path[%s]", search_path);
 227                                         find = TRUE;
 228                                         break;
 229                                 }
 230                         }
 231                 } else {
 232                         *ignore = TRUE;
 233                         media_content_error("Open Directory fail");
 234                         if (error->code == G_FILE_ERROR_ACCES) {
 235                                 g_error_free(error);
 236                                 return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
 237                         } else {
 238                                 g_error_free(error);
 239                                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 240                         }
 241                 }
 242
 243                 if (dir)
 244                         g_dir_close(dir);
 245
 246                 if (find) {
 247                         *ignore = TRUE;
 248                         break;
 249                 } else {
 250                         /*If root path, Stop Scanning*/
 251                         if ((storage_type == MEDIA_SVC_STORAGE_INTERNAL) && (STRING_VALID(MEDIA_ROOT_PATH_INTERNAL) && g_strcmp0(search_path, MEDIA_ROOT_PATH_INTERNAL) == 0)) {
 252                                 break;
 253                         } else if ((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (STRING_VALID(MEDIA_ROOT_PATH_SDCARD)) && (g_strcmp0(search_path, MEDIA_ROOT_PATH_SDCARD) == 0)) {
 254                                 break;
 255                         } else if ((storage_type == MEDIA_SVC_STORAGE_EXTERNAL_USB) && (STRING_VALID(MEDIA_ROOT_PATH_DISC)) && (g_strcmp0(search_path, MEDIA_ROOT_PATH_DISC) == 0)) {
 256                                 break;
 257                         } else if (storage_type == MEDIA_SVC_STORAGE_EXTERNAL_USB) {
 258                                 char *parent_folder_path = NULL;
 259                                 bool is_root = FALSE;
 260
 261                                 parent_folder_path = g_path_get_dirname(search_path);
 262                                 if (STRING_VALID(MEDIA_ROOT_PATH_USB) && STRING_VALID(parent_folder_path) && (g_strcmp0(parent_folder_path, MEDIA_ROOT_PATH_USB) == 0))
 263                                         is_root = TRUE;
 264
 265                                 SAFE_FREE(parent_folder_path);
 266
 267                                 if (is_root == TRUE)
 268                                         break;
 269                         }
 270 #ifdef _USE_SENIOR_MODE
 271                         if (_media_content_is_support_senior_mode()) {
 272                                 if ((storage_type == MEDIA_SVC_STORAGE_EXTERNAL) && (g_strcmp0(search_path, MEDIA_ROOT_PATH_SENIOR_MODE) == 0))
 273                                         break;
 274                         }
 275 #endif
 276
 277                         leaf_path = strrchr(search_path, '/');
 278                         if (leaf_path != NULL) {
 279                                 int seek_len = leaf_path -search_path;
 280                                 search_path[seek_len] = '\0';
 281                                 /*media_content_sec_debug("go to other dir [%s]", search_path);*/
 282                         } else {
 283                                 media_content_debug("Fail to find leaf path");
 284                                 break;
 285                         }
 286                 }
 287         }
 288
 289         return MEDIA_CONTENT_ERROR_NONE;
 290 }
 291
 292 int _media_content_check_dir(const char *path)
 293 {
 294         DIR *dp = NULL;
 295         char *real = NULL;
 296         char *origin = NULL;
 297 #ifndef _USE_TVPD_MODE
 298         char result_path[MAX_PATH_LEN] = {0, };
 299 #endif
 300         dp = opendir(path);
 301         if (dp == NULL) {
 302                 media_content_sec_error("path [%s]", path);
 303                 media_content_stderror("open dir fail");
 304
 305                 if (errno == EACCES || errno == EPERM)
 306                         return MEDIA_CONTENT_ERROR_PERMISSION_DENIED;
 307                 else
 308                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 309         }
 310
 311         closedir(dp);
 312
 313         /* Check symbolic link directory */
 314         real = realpath(path, NULL);
 315         /* Get trimmed path */
 316         _media_util_trim_path(path, &origin);
 317
 318 #ifdef _USE_TVPD_MODE
 319         if (g_strcmp0(real, origin) != 0) {
 320                 media_content_error("symbolic link(directory)");
 321                 media_content_sec_debug("path[%s] real[%s]", origin, real);
 322                 SAFE_FREE(real);
 323                 SAFE_FREE(origin);
 324                 return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 325         }
 326 #else
 327         if (g_str_has_prefix(real, MEDIA_SHARE_PATH)) {
 328                 /* If shared dirctory, it should be change path to TZ_USER_SHARE from realpath */
 329                 snprintf(result_path, MAX_PATH_LEN, "%s%s", tzplatform_getenv(TZ_USER_MEDIASHARED), real + strlen(MEDIA_SHARE_PATH));
 330                 if (g_strcmp0(result_path, origin) != 0) {
 331                         media_content_error("symbolic link(directory)");
 332                         media_content_sec_debug("path[%s] real[%s]", origin, real);
 333                         SAFE_FREE(real);
 334                         SAFE_FREE(origin);
 335                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 336                 }
 337         } else {
 338                 if (g_strcmp0(real, origin) != 0) {
 339                         media_content_error("symbolic link(directory)");
 340                         media_content_sec_debug("path[%s] real[%s]", origin, real);
 341                         SAFE_FREE(real);
 342                         SAFE_FREE(origin);
 343                         return MEDIA_CONTENT_ERROR_INVALID_PARAMETER;
 344                 }
 345         }
 346 #endif
 347
 348         SAFE_FREE(real);
 349         SAFE_FREE(origin);
 350
 351         return MEDIA_CONTENT_ERROR_NONE;
 352 }
 353
 354
 355 int _media_content_replace_path_in_condition(const char *condition, char *replace_condition, bool replace)
 356 {
 357         int ret = MEDIA_CONTENT_ERROR_NONE;
 358
 359 #ifdef _USE_TVPD_MODE
 360         snprintf(replace_condition, MAX_QUERY_SIZE, "%s", condition);
 361 #else
 362         char old_condition[MAX_QUERY_SIZE] = {0, };
 363         char new_condition[MAX_QUERY_SIZE] = {0, };
 364         char *find = NULL;
 365         unsigned int str_len = 0;
 366
 367         char *find_str = NULL;
 368         char *to_replace_str = NULL;
 369
 370         if (replace == TRUE) {  //change User session path to System session path
 371                 ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &find_str);
 372                 if (ret != STORAGE_ERROR_NONE) {
 373                         media_content_error("storage_get_directory failed");
 374                         ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 375                         goto ERROR;
 376                 }
 377
 378                 to_replace_str = g_strdup(MEDIA_ROOT_PATH_INTERNAL);
 379                 if (!STRING_VALID(to_replace_str)) {
 380                         media_content_error("Get TZ_USER_CONTENT failed");
 381                         ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 382                         goto ERROR;
 383                 }
 384         } else {
 385                 find_str = g_strdup(MEDIA_ROOT_PATH_INTERNAL);
 386                 if (!STRING_VALID(find_str)) {
 387                         media_content_error("Get TZ_USER_CONTENT failed");
 388                         ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 389                         goto ERROR;
 390                 }
 391
 392                 ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &to_replace_str);
 393                 if (ret != STORAGE_ERROR_NONE) {
 394                         media_content_error("storage_get_directory failed");
 395                         ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 396                         goto ERROR;
 397                 }
 398         }
 399
 400         memset(old_condition, 0, sizeof(old_condition));
 401         memset(new_condition, 0, sizeof(new_condition));
 402
 403         media_content_sec_debug("Old condition[%s]", condition);
 404
 405         if (!SAFE_STRLCPY(new_condition, condition, sizeof(new_condition))) {
 406                 media_content_error("MEDIA_CONTENT_ERROR_INVALID_OPERATION(0x%08x)", MEDIA_CONTENT_ERROR_INVALID_OPERATION);
 407                 ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 408                 goto ERROR;
 409         }
 410
 411         if (g_strcmp0(find_str, to_replace_str))
 412                 find = strstr(new_condition, find_str);
 413
 414         while (find != NULL) {
 415                 str_len = find - new_condition;
 416
 417                 memset(old_condition, 0, sizeof(old_condition));
 418                 if (!SAFE_STRLCPY(old_condition, new_condition, sizeof(old_condition))) {
 419                         media_content_error("MEDIA_CONTENT_ERROR_INVALID_OPERATION(0x%08x)", MEDIA_CONTENT_ERROR_INVALID_OPERATION);
 420                         ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 421                         goto ERROR;
 422                 }
 423                 memset(new_condition, 0, sizeof(new_condition));
 424
 425                 snprintf(new_condition, str_len + 1, "%s", old_condition);
 426
 427                 SAFE_STRLCAT(new_condition, to_replace_str, sizeof(new_condition));
 428                 SAFE_STRLCAT(new_condition, old_condition + str_len + strlen(find_str), sizeof(new_condition));
 429
 430                 find = strstr(new_condition, find_str);
 431         }
 432
 433         if (!SAFE_STRLCPY(replace_condition, new_condition, MAX_QUERY_SIZE)) {
 434                 media_content_error("MEDIA_CONTENT_ERROR_INVALID_OPERATION(0x%08x)", MEDIA_CONTENT_ERROR_INVALID_OPERATION);
 435                 ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 436                 goto ERROR;
 437         }
 438
 439         media_content_sec_debug("repl cond[%s]", replace_condition);
 440
 441         if (!STRING_VALID(replace_condition)) {
 442                 media_content_error("replace failed");
 443                 ret = MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 444                 goto ERROR;
 445         }
 446
 447 ERROR:
 448         SAFE_FREE(find_str);
 449         SAFE_FREE(to_replace_str);
 450 #endif
 451
 452         return ret;
 453 }
 454
 455 int _media_content_replace_path(const char *path, char *replace_path)
 456 {
 457 #ifdef _USE_TVPD_MODE
 458         snprintf(replace_path, MAX_PATH_LEN, "%s", path);
 459 #else
 460
 461         int ret = MEDIA_CONTENT_ERROR_NONE;
 462         char *old_internal_path =  NULL;
 463
 464         ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &old_internal_path);
 465         if (ret != STORAGE_ERROR_NONE) {
 466                 media_content_error("storage_get_directory failed");
 467                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 468         }
 469
 470         if (strncmp(path, old_internal_path, strlen(old_internal_path)) == 0) {
 471                 media_content_sec_debug("Old path[%s]", path);
 472                 snprintf(replace_path, MAX_PATH_LEN, "%s%s", MEDIA_ROOT_PATH_INTERNAL, path + strlen(old_internal_path));
 473         } else {
 474                 snprintf(replace_path, MAX_PATH_LEN, "%s", path);
 475         }
 476
 477         SAFE_FREE(old_internal_path);
 478 #endif
 479
 480         if (!STRING_VALID(replace_path)) {
 481                 media_content_error("replace failed");
 482                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 483         }
 484
 485         return MEDIA_CONTENT_ERROR_NONE;
 486 }
 487
 488 int _media_content_rollback_path(const char *path, char *replace_path)
 489 {
 490 #ifdef _USE_TVPD_MODE
 491                 snprintf(replace_path, MAX_PATH_LEN, "%s", path);
 492 #else
 493
 494         int ret = MEDIA_CONTENT_ERROR_NONE;
 495         char *old_internal_path =  NULL;
 496
 497         ret = storage_get_root_directory(STORAGE_TYPE_INTERNAL, &old_internal_path);
 498         if (ret != STORAGE_ERROR_NONE) {
 499                 media_content_error("storage_get_directory failed");
 500                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 501         }
 502
 503         if (strncmp(path, MEDIA_ROOT_PATH_INTERNAL, strlen(MEDIA_ROOT_PATH_INTERNAL)) == 0) {
 504                 media_content_sec_debug("new path[%s]", path);
 505                 snprintf(replace_path, MAX_PATH_LEN, "%s%s", old_internal_path, path + strlen(MEDIA_ROOT_PATH_INTERNAL));
 506         } else {
 507                 snprintf(replace_path, MAX_PATH_LEN, "%s", path);
 508         }
 509
 510         SAFE_FREE(old_internal_path);
 511 #endif
 512
 513         if (!STRING_VALID(replace_path)) {
 514                 media_content_error("replace failed");
 515                 return MEDIA_CONTENT_ERROR_INVALID_OPERATION;
 516         }
 517
 518         return MEDIA_CONTENT_ERROR_NONE;
 519 }
 520
 521 #ifdef _USE_SENIOR_MODE
 522 bool _media_content_is_support_senior_mode()
 523 {
 524         bool bSupportSeniorMode = false;
 525
 526         if (system_info_get_value_bool(SYSTEM_INFO_KEY_GET_SENIOR_MODE_SUPPORTED, &bSupportSeniorMode) != SYSTEM_INFO_ERROR_NONE) {
 527                 media_content_debug("Get senior mode support failed");
 528                 return false;
 529         }
 530         /* media_content_debug("Senior mode Support : [%d]", bSupportSeniorMode); */
 531         return bSupportSeniorMode;
 532 }
 533 #endif
 534