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