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