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