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