src/io/FIo_FileUtil.cpp

   1 //
   2 // Open Service Platform
   3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the License);
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 //     http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16 //
  17
  18 /**
  19  * @file        FIo_FileUtil.cpp
  20  * @brief       This is the implementation file for _FileUtil class.
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <sys/mman.h>
  27 #include <sys/types.h>
  28 #include <sys/stat.h>
  29 #include <fcntl.h>
  30 #include <time.h>
  31 #include <limits.h>
  32 #include <errno.h>
  33 #include <new>
  34 #include <unique_ptr.h>
  35
  36 #include <FIoFile.h>
  37 #include <FIoDirectory.h>
  38 #include <FBaseResult.h>
  39 #include <FBaseSysLog.h>
  40
  41 #include <FBase_StringConverter.h>
  42 #include <FBase_NativeError.h>
  43 #include <FApp_AppInfo.h>
  44 #include <FIo_FileAttributesImpl.h>
  45 #include <FIo_SecureIoUtil.h>
  46 #include <FIo_FileImpl.h>
  47 #include <FIo_FileUtil.h>
  48
  49 using namespace std;
  50 using namespace Tizen::Base;
  51 using namespace Tizen::App;
  52
  53 namespace Tizen { namespace Io
  54 {
  55
  56 static const int _BASE_YEAR = 1900;
  57 static const int _MAX_COPY_BYTES = 4096;
  58 static const int _MAX_OPENMODE_LENGTH = 3;
  59
  60 //Holds app path prefixes
  61 static const char* filePathAppPrefix[] =
  62 {
  63         "/Home",
  64         "/Res",
  65         "/Share",
  66         "/Share2",
  67         "/HomeExt",
  68         "/ShareExt",
  69         "/Share2Ext",
  70         "/Clipboard",
  71         "/NPKI",
  72         "/Storagecard/NPKI",
  73         "/system/Document",
  74         "/system/Data/FWeb",
  75         "/Storagecard/DownloadedAppPackages",
  76         "/system/Media",
  77         "/system/Ringtones",
  78         "/system/Wallpapers",
  79         "/EmailBox",
  80         "/MmsBox"
  81 };
  82
  83 //Holds Media path prefixes
  84 static const char* filePathMediaPrefix[] =
  85 {
  86         "/Media",
  87         "/Storagecard/Media"
  88 };
  89
  90 //Holds system path prefixes
  91 static const char* filePathSystemPrefix[] =
  92 {
  93         "/system/configuration",
  94         "/SystemRw"
  95 };
  96
  97 result
  98 _FileUtil::Remove(const String& filePath)
  99 {
 100         result r = E_SUCCESS;
 101         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 102         SysTryReturn(NID_IO, (pFilePath != null), GetLastResult(), GetLastResult(), ("[%s] Invalid file path."),
 103                                 GetErrorMessage(GetLastResult()));
 104
 105         if (_FileUtil::IsFileExist(pFilePath.get()) == false)
 106         {
 107                 SysLog(NID_IO, "[E_FILE_NOT_FOUND] File(%s) does not exist.", pFilePath.get());
 108                 return E_FILE_NOT_FOUND;
 109         }
 110
 111         char resolvedPath[PATH_MAX] = {0,};
 112         if (realpath(pFilePath.get(), resolvedPath) == null)
 113         {
 114                 switch (errno)
 115                 {
 116                 case EACCES:
 117                         r = E_ILLEGAL_ACCESS;
 118                         break;
 119                 case EINVAL:
 120                         // fall through
 121                 case ELOOP:
 122                         // fall through
 123                 case ENAMETOOLONG:
 124                         // fall through
 125                 case ENOTDIR:
 126                         r = E_INVALID_ARG;
 127                         break;
 128                 case EIO:
 129                         r = E_IO;
 130                         break;
 131                 case ENOENT:
 132                         r = E_FILE_NOT_FOUND;
 133                         break;
 134                 default:
 135                         r = E_SYSTEM;
 136                         break;
 137                 }
 138
 139                 SysLog(NID_IO, "[%s] Failed to produce canonical absolute path (%ls). errno: %d (%s)",
 140                                 GetErrorMessage(r), filePath.GetPointer(), errno, strerror(errno));
 141
 142                 return r;
 143         }
 144
 145         int ret = unlink(resolvedPath);
 146         if (ret != 0)
 147         {
 148                 if (errno == EISDIR)
 149                 {
 150                         r = E_INVALID_ARG;
 151                 }
 152                 else
 153                 {
 154                         r = __ConvertNativeErrorToResult(errno);
 155                         SysLog(NID_IO, "[%s] Failed to unlink(), errno: %d (%s)", GetErrorMessage(r), errno, strerror(errno));
 156                 }
 157         }
 158
 159         return r;
 160 }
 161
 162 result
 163 _FileUtil::Move(const String& oldFilePath, const String& newFilePath)
 164 {
 165         result r = E_SUCCESS;
 166         struct stat64 statBuf;
 167
 168         unique_ptr<char[]> pOldPath(_StringConverter::CopyToCharArrayN(oldFilePath));
 169         SysTryReturn(NID_IO, pOldPath != null, GetLastResult(), GetLastResult(),
 170                            "[%s] Invalid old file path.", GetErrorMessage(GetLastResult()));
 171
 172         unique_ptr<char[]> pNewPath(_StringConverter::CopyToCharArrayN(newFilePath));
 173         SysTryReturn(NID_IO, pNewPath != null, GetLastResult(), GetLastResult(),
 174                            "[%s] Invalid new file path.", GetErrorMessage(GetLastResult()));
 175
 176         SysTryReturnResult(NID_IO, _FileUtil::IsFileExist(newFilePath) == false, E_FILE_ALREADY_EXIST,
 177                            "New file already exists.");
 178
 179         SysTryReturnResult(NID_IO, _FileUtil::IsFileExist(oldFilePath) == true, E_FILE_NOT_FOUND,
 180                            "Old filepath not found.");
 181
 182         if (stat64(pOldPath.get(), &statBuf) < 0)
 183         {
 184                 r = __ConvertNativeErrorToResult(errno);
 185                 SysLogException(NID_IO, r, "[%s] stat64() failed, path: %s, errno: %d (%s)",
 186                                 GetErrorMessage(r), pOldPath.get(), errno, strerror(errno));
 187                 return r;
 188         }
 189         SysTryReturnResult(NID_IO, S_ISDIR(statBuf.st_mode) == false, E_INVALID_ARG,
 190                            "The old path is a directory.");
 191
 192         int ret = rename(pOldPath.get(), pNewPath.get());
 193         if (ret != 0 && errno != EXDEV)
 194         {
 195                 r = __ConvertNativeErrorToResult(errno);
 196                 SysLog(NID_IO, "[%s] rename() failed, errno: %d (%s)", GetErrorMessage(r), errno, strerror(errno));
 197                 return r;
 198         }
 199         else if (errno == EXDEV)
 200         {
 201                 r = File::Copy(oldFilePath, newFilePath, true);
 202                 SysTryReturn(NID_IO, !IsFailed(r), r, r, "[%s] Propagating to caller...", GetErrorMessage(r));
 203
 204                 r = File::Remove(oldFilePath);
 205                 SysTryReturn(NID_IO, !IsFailed(r), r, r, "[%s] Propagating to caller...", GetErrorMessage(r));
 206         }
 207
 208         return E_SUCCESS;
 209 }
 210
 211 result
 212 _FileUtil::Copy(const String& srcFilePath, const String& destFilePath, bool failIfExist)
 213 {
 214         int srcFd = -1;
 215         int dstFd = -1;
 216         ssize_t readBytes = -1;
 217         ssize_t writtenBytes = -1;
 218         ssize_t remainingBytes = -1;
 219         char* pBuffer = null;
 220         result r = E_SUCCESS;
 221
 222         unique_ptr<char[]> pSrcpath(_StringConverter::CopyToCharArrayN(srcFilePath));
 223         SysTryReturn(NID_IO, pSrcpath != null, GetLastResult(), GetLastResult(),
 224                            "[%s] Invalid source file path.", GetErrorMessage(GetLastResult()));
 225
 226         unique_ptr<char[]> pDstpath(_StringConverter::CopyToCharArrayN(destFilePath));
 227         SysTryReturn(NID_IO, pDstpath != null, GetLastResult(), GetLastResult(),
 228                            "[%s] Invalid destination file path.", GetErrorMessage(GetLastResult()));
 229
 230         SysTryReturnResult(NID_IO, _FileUtil::IsFileExist(srcFilePath) == true, E_FILE_NOT_FOUND,
 231                            "Source file(%s) does not exist.", pSrcpath.get());
 232
 233         if ((_FileUtil::IsFileExist(destFilePath) == true) && (failIfExist == true))
 234         {
 235                 r = E_FILE_ALREADY_EXIST;
 236                 SysLog(NID_IO, "[E_FILE_ALREADY_EXIST] Destination file already exists.");
 237                 return r;
 238         }
 239
 240         srcFd = open64(pSrcpath.get(), O_RDONLY);
 241         if (srcFd == -1)
 242         {
 243                 r = __ConvertNativeErrorToResult(errno);
 244                 SysLogException(NID_IO, r, "[%s] Failed to open file (%s).", GetErrorMessage(r), pSrcpath.get());
 245                 return r;
 246         }
 247         dstFd = open64(pDstpath.get(), O_WRONLY | O_CREAT | O_TRUNC, 0644);
 248         if (dstFd == -1)
 249         {
 250                 r = __ConvertNativeErrorToResult(errno);
 251                 SysLogException(NID_IO, r, "[%s] Failed to open file (%s), errno: %d (%s)",
 252                                    GetErrorMessage(r), pDstpath.get(), errno, strerror(errno));
 253                 goto CATCH;
 254         }
 255
 256         pBuffer = new (std::nothrow) char[_MAX_COPY_BYTES];
 257         SysTryCatch(NID_IO, pBuffer != null, r = E_OUT_OF_MEMORY, E_OUT_OF_MEMORY, "[E_OUT_OF_MEMORY] The memory is insufficient.");
 258
 259         do
 260         {
 261                 do
 262                 {
 263                         readBytes = read(srcFd, pBuffer, _MAX_COPY_BYTES);
 264                 }
 265                 while (readBytes < 0 && errno == EINTR);
 266                 if (readBytes < 0)
 267                 {
 268                         r = __ConvertNativeErrorToResult(errno);
 269                         SysLogException(NID_IO, r, "[%s] Failed to read from source file (%s), errno: %d (%s)",
 270                                         GetErrorMessage(r), pSrcpath.get(), errno, strerror(errno));
 271                         goto CATCH;
 272                 }
 273                 else if (readBytes == 0)
 274                 {
 275                         break;
 276                 }
 277                 remainingBytes = readBytes;
 278 RETRY:
 279                 do
 280                 {
 281                         writtenBytes = write(dstFd, pBuffer, remainingBytes);
 282                 }
 283                 while (writtenBytes < 0 && errno == EINTR);
 284                 if (writtenBytes < 0)
 285                 {
 286                         r = __ConvertNativeErrorToResult(errno);
 287                         SysLogException(NID_IO, r, "[%s] Failed to write to destination file (%s), errno: %d (%s)",
 288                                         GetErrorMessage(r), pDstpath.get(), errno, strerror(errno));
 289                         goto CATCH;
 290                 }
 291                 else if (writtenBytes < remainingBytes)
 292                 {
 293                         remainingBytes = remainingBytes - writtenBytes;
 294                         pBuffer = const_cast< char* >(pBuffer) + writtenBytes;
 295                         goto RETRY;
 296                 }
 297         }
 298         while (readBytes);
 299
 300         // fall through
 301 CATCH:
 302         if (srcFd != -1)
 303         {
 304                 close(srcFd);
 305         }
 306         if (dstFd != -1)
 307         {
 308                 fsync(dstFd);
 309                 close(dstFd);
 310         }
 311         delete pBuffer;
 312
 313         return r;
 314 }
 315
 316 result
 317 _FileUtil::GetAttributes(const String& filePath, FileAttributes& attribute)
 318 {
 319         DateTime dateTime;
 320         DateTime modifiedTime;
 321         off64_t fileSize = 0;
 322         unsigned long attr = 0;
 323         result r = E_SUCCESS;
 324         struct tm* pTm = null;
 325         String fileName = L"";
 326         bool hidden = false;
 327
 328         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 329         SysTryReturn(NID_IO, (pFilePath != null), GetLastResult(), GetLastResult(), "[%s] Invalid source file path.",
 330                            GetErrorMessage(GetLastResult()));
 331
 332         struct stat64 statbuf;
 333         if (int ret = stat64(pFilePath.get(), &statbuf) == -1)
 334         {
 335                 r = __ConvertNativeErrorToResult(errno);
 336                 SysLogException(NID_IO, r, "[%s] Failed to get file (%s) status.", GetErrorMessage(r), pFilePath.get());
 337                 return r;
 338         }
 339
 340         // size
 341         fileSize = statbuf.st_size;
 342
 343         // attributes
 344         attr = statbuf.st_mode;
 345
 346         pTm = localtime(&statbuf.st_mtime);
 347         SysTryReturnResult(NID_IO, pTm != null, E_SYSTEM, "Failed to call localtime() (%s).", strerror(errno));
 348         r = dateTime.SetValue(_BASE_YEAR + pTm->tm_year, 1 + pTm->tm_mon, pTm->tm_mday, pTm->tm_hour, pTm->tm_min, pTm->tm_sec);
 349         SysTryReturn(NID_IO, (!IsFailed(r)), r, r, "[%s] Failed to set DateTime.", GetErrorMessage(r));
 350
 351         pTm = localtime(&statbuf.st_mtime);
 352         SysTryReturnResult(NID_IO, pTm != null, E_SYSTEM, "Failed to call localtime() (%s).", strerror(errno));
 353         r = modifiedTime.SetValue(_BASE_YEAR + pTm->tm_year, 1 + pTm->tm_mon, pTm->tm_mday, pTm->tm_hour, pTm->tm_min, pTm->tm_sec);
 354         SysTryReturn(NID_IO, (!IsFailed(r)), r, r, "[%s] Failed to set DateTime.", GetErrorMessage(r));
 355
 356         fileName = _FileUtil::GetFileName(filePath);
 357         if (fileName.StartsWith(L".", 0)) // including . and ..
 358         {
 359                 hidden = true;
 360         }
 361
 362         _FileAttributesImpl::GetInstance(attribute)->Set(dateTime, modifiedTime, fileSize, attr, hidden);
 363
 364         return E_SUCCESS;
 365 }
 366
 367 String
 368 _FileUtil::GetFileName(const String& filePath)
 369 {
 370         String fileName;
 371         int pos = -1;
 372
 373         result r = filePath.LastIndexOf(L'/', filePath.GetLength() - 1, pos);
 374         SysTryReturn(NID_IO, !IsFailed(r), fileName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 375
 376         r = filePath.SubString(pos + 1, fileName);
 377         SysTryReturn(NID_IO, !IsFailed(r), fileName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 378         SysTryReturn(NID_IO, fileName.GetLength() > 0 && fileName.GetLength() <= NAME_MAX, fileName, E_INVALID_ARG,
 379                         "[E_INVALID_ARG] The length of file name is zero or exceeds system limitations.");
 380
 381         SetLastResult(E_SUCCESS);
 382         return fileName;
 383 }
 384
 385 String
 386 _FileUtil::GetFileExtension(const String& filePath)
 387 {
 388         String extName;
 389         int pos = -1;
 390
 391         result r = filePath.LastIndexOf(L'/', filePath.GetLength() - 1, pos);
 392         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 393
 394         String fileName;
 395         r = filePath.SubString(pos + 1, fileName);
 396         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 397         SysTryReturn(NID_IO, fileName.GetLength() > 0 && fileName.GetLength() <= NAME_MAX, extName, E_INVALID_ARG,
 398                         "[E_INVALID_ARG] The length of file name is zero or exceeds system limitations.");
 399
 400         r = fileName.LastIndexOf(L'.', fileName.GetLength() - 1, pos);
 401         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 402
 403         r = fileName.SubString(pos + 1, extName);
 404         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 405
 406         SetLastResult(E_SUCCESS);
 407         return extName;
 408 }
 409
 410 bool
 411 _FileUtil::IsFileExist(const String& filePath)
 412 {
 413         int ret = 0;
 414         result r = E_SUCCESS;
 415
 416         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 417         SysTryReturn(NID_IO, (pFilePath != null), false, GetLastResult(), ("[%s] Invalid file path."),
 418                            GetErrorMessage(GetLastResult()));
 419
 420         ret = access(pFilePath.get(), F_OK);
 421         if (ret != 0)
 422         {
 423                 switch (errno)
 424                 {
 425                 case ENAMETOOLONG:
 426                         r = E_INVALID_ARG;
 427                         break;
 428                 case ENOENT:
 429                         r = E_SUCCESS;
 430                         break;
 431                 default:
 432                         r = __ConvertNativeErrorToResult(errno);
 433                         break;
 434                 }
 435         }
 436
 437         SetLastResult(r);
 438         return (ret == 0) ? true : false;
 439 }
 440
 441 #if 0
 442 bool
 443 _FileUtil::IsEncrypted(const String& filePath)
 444 {
 445         result  r = E_SUCCESS;
 446         // TODO: int    pathKind;
 447         int     readItems = 0;
 448         int     fileLength = 0;
 449         bool    encrypted = false;
 450         // TODO: bool   checkPrivilege = false;
 451         byte    secureHeader[SECURE_FILE_HEADER_SIZE_V1 + SECURE_IO_LOF_SIZE];
 452         byte    reservedValue[SECURE_IO_STATIC_BIN_LEN] = {0xCA, 0xFE, 0xBE, 0xBE, 0xDA, 0xEF, 0xEB, 0xEB};
 453         char    magicNum1[SECURE_IO_MAGIC_NUMBER_SIZE] = {0xCA, 0xFE, 0xBE, 0xBE};
 454         char    magicNum2[SECURE_IO_MAGIC_NUMBER_SIZE] = {0xDA, 0xEF, 0xEF, 0xEB};
 455         FILE*   pFile = null;
 456
 457         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 458         SysTryReturn(NID_IO, pFilePath != null, false, E_INVALID_ARG, "[E_INVALID_ARG] CopyToCharArrayN failed!");
 459
 460         fileLength = strlen(pFilePath.get());
 461         SysTryReturn(NID_IO, fileLength > 0, false, E_INVALID_ARG, "[E_INVALID_ARG] CopyToCharArrayN failed!");
 462
 463         if (pFilePath[fileLength - 1] == ('/'))
 464         {
 465                 pFilePath[fileLength - 1] = ('\0'); // remove last '/' character if exists.
 466         }
 467
 468 //      // TODO: check accessibility to path
 469 //      r = CheckAccessibilityToPath(pFilePath, &pathKind, 0);
 470 //      if(IsFailed(r))
 471 //              goto CATCH;
 472 //
 473 //      if(pathKind == __PATH_KIND_AUTHORIZED_MMC)
 474 //      {
 475 //              __CheckPrivilege(PRV_INSTALLATION, checkPrivilege);
 476 //              if(!checkPrivilege)
 477 //              {
 478 //                      r = E_ILLEGAL_ACCESS;
 479 //                      goto CATCH;
 480 //              }
 481 //      }
 482 //      else if(pathKind == __PATH_KIND_AUTHORIZED_LINK || pathKind == __PATH_KIND_AUTHORIZED_NPKI ||
 483 //                      pathKind == __PATH_KIND_AUTHORIZED_PRELOADED_MEDIA)
 484 //      {
 485 //              __CheckPrivilege(PRV_PRIVILEGED_IO, checkPrivilege);
 486 //              if(!checkPrivilege)
 487 //              {
 488 //                      r = E_ILLEGAL_ACCESS;
 489 //                      goto CATCH;
 490 //              }
 491 //      }
 492 //      else if (pathKind == __PATH_KIND_APP_DENY)
 493 //      {
 494 //              r = E_ILLEGAL_ACCESS;
 495 //              goto CATCH;
 496 //      }
 497
 498         pFile = fopen(pFilePath.get(), "r");
 499         if (pFile == null)
 500         {
 501                 r = __ConvertNativeErrorToResult(errno);
 502                 SysLog(NID_IO, "[%s] Failed to open file (%s) in openMode (%s), (errno: %d).", GetErrorMessage(r), pFilePath.get(), "r", errno);
 503                 goto CATCH;
 504         }
 505
 506         readItems = fread(secureHeader, 1, SECURE_FILE_HEADER_SIZE_V1 + SECURE_IO_LOF_SIZE, pFile);
 507
 508         if (readItems < (SECURE_FILE_HEADER_SIZE_V1 + SECURE_IO_LOF_SIZE))
 509         {
 510                 int eof = feof((FILE*)pFile);
 511                 if (eof)
 512                 {
 513                         //No error;
 514                         encrypted = false;
 515                         goto CATCH;
 516                 }
 517
 518                 r = __ConvertNativeErrorToResult(errno);
 519                 SysLog(NID_IO, "[%s] Failed to open file (%s) in openMode (%s), (errno: %d).", GetErrorMessage(r), pFilePath.get(), "r", errno);
 520                 goto CATCH;
 521         }
 522
 523         if (memcmp(secureHeader, SECURE_FILE_HEADER_STRING, SECURE_FILE_HEADER_STRING_SIZE) == 0 && \
 524                 memcmp(secureHeader + SECURE_FILE_HEADER_STRING_SIZE, reservedValue, SECURE_IO_STATIC_BIN_LEN) == 0)
 525         {
 526                 encrypted = true;
 527         }
 528         else if (memcmp(secureHeader, SECURE_REG_HEADER_STRING, SECURE_REG_HEADER_STRING_SIZE) == 0 && \
 529                 memcmp(secureHeader + SECURE_REG_HEADER_STRING_SIZE, reservedValue, SECURE_IO_STATIC_BIN_LEN) == 0)
 530         {
 531                 encrypted = true;
 532         }
 533         else if ((memcmp(secureHeader, magicNum1, SECURE_IO_MAGIC_NUMBER_SIZE) == 0) &&
 534                         (memcmp(secureHeader + SECURE_IO_STATIC_BIN_LEN, magicNum2, SECURE_IO_MAGIC_NUMBER_SIZE) == 0))
 535
 536         {
 537                 encrypted = true;
 538         }
 539         else
 540         {
 541                 encrypted = false;
 542         }
 543
 544         // fall thru
 545 CATCH:
 546
 547         if (pFile)
 548         {
 549                 fclose(pFile);
 550         }
 551
 552         SetLastResult(r);
 553         return encrypted;
 554 }
 555 #endif
 556
 557 bool
 558 _FileUtil::IsAppPath(const String& filePath)
 559 {
 560         result r = E_SUCCESS;
 561
 562         if (VerifyFilePath(filePath, FILEPATH_TYPE_APP))
 563         {
 564                 SetLastResult(E_SUCCESS);
 565                 return true;
 566         }
 567         r = GetLastResult();
 568
 569         SetLastResult(r);
 570         return false;
 571 }
 572
 573 bool
 574 _FileUtil::IsMediaPath(const String& filePath)
 575 {
 576         result r = E_SUCCESS;
 577
 578         if (VerifyFilePath(filePath, FILEPATH_TYPE_MEDIA))
 579         {
 580                 SetLastResult(E_SUCCESS);
 581                 return true;
 582         }
 583         r = GetLastResult();
 584
 585         SetLastResult(r);
 586         return false;
 587 }
 588
 589 bool
 590 _FileUtil::IsSystemPath(const String& filePath)
 591 {
 592         result r = E_SUCCESS;
 593
 594         if (VerifyFilePath(filePath, FILEPATH_TYPE_SYSTEM))
 595         {
 596                 SetLastResult(E_SUCCESS);
 597                 return true;
 598         }
 599         r = GetLastResult();
 600
 601         SetLastResult(r);
 602         return false;
 603 }
 604
 605 bool
 606 _FileUtil::VerifyFilePath(const String& filePath, _FilePathType pathType)
 607 {
 608         result r = E_SUCCESS;
 609         String tmpStr("");
 610         String absolutePath("");
 611         int i = 0;
 612         int index = 0;
 613         int pathCount = 0;
 614         char** ppPathList = null;
 615         bool candidateFound = false;
 616         wchar_t ch = L'\0';
 617
 618         //TODO Apply realpath after data caging.
 619         //
 620         //char resolved_path[1024];
 621         //char* pFilePath = _StringConverter::CopyToCharArrayN(filePath);
 622         //
 623         //r = GetLastResult();
 624         //
 625         //SysTryCatch(NID_IO, pFilePath != null,
 626         //        r, r, "[%s] Failed to get file path", GetErrorMessage(r));
 627
 628
 629         //SysLog(NID_IO, "convert: %s", pFilePath);
 630         //if (realpath(pFilePath, resolved_path) !=0)
 631         //{
 632         //      r = __ConvertNativeErrorToResult(errno);
 633         //      SysLog(NID_IO, "convert Error!!! [%s] %s", resolved_path, GetErrorMessage(r));
 634         //      delete[] pFilePath;
 635         //      return false;
 636         //      }
 637         //
 638         //SysLog(NID_IO, "convert result: %s", resolved_path);
 639         //absolutePath.Append(resolved_path);
 640         //delete[] pFilePath;
 641
 642         absolutePath.Append(filePath);
 643         // This code does not handle paths without prefix '/' ex: "Home/myfile"
 644         // since it depends on cwd.
 645         switch (pathType)
 646         {
 647         case FILEPATH_TYPE_APP:
 648                 pathCount = MAX_FILEPATH_APP;
 649                 ppPathList = const_cast <char**>(filePathAppPrefix);
 650                 break;
 651
 652         case FILEPATH_TYPE_MEDIA:
 653                 pathCount = MAX_FILEPATH_MEDIA;
 654                 ppPathList = const_cast <char**>(filePathMediaPrefix);
 655                 break;
 656
 657         case FILEPATH_TYPE_SYSTEM:
 658                 pathCount = MAX_FILEPATH_SYSTEM;
 659                 ppPathList = const_cast <char**>(filePathSystemPrefix);
 660                 break;
 661
 662         default:
 663                 r = E_INVALID_ARG;
 664                 goto CATCH;
 665         }
 666
 667         absolutePath.GetCharAt(absolutePath.GetLength() - 1, ch);
 668         if (ch != L'/') // if last char of absolutePath is not '/' then append it to make path parsing easier
 669         {
 670                 absolutePath.Append(L'/');
 671         }
 672
 673         for (i = 0; i < pathCount; i++)
 674         {
 675                 tmpStr.Clear();
 676                 tmpStr.Append(ppPathList[i]);
 677
 678                 if (absolutePath.IndexOf(tmpStr, 0, index) == E_SUCCESS)
 679                 {
 680                         if (index == 0)
 681                         {
 682                                 ch = L'\0';
 683                                 if (absolutePath.GetCharAt(tmpStr.GetLength(), ch) == E_SUCCESS)
 684                                 {
 685                                         if (ch == L'/') // validate exact path. paths like /Home123/file.txt is not supported.
 686                                         {
 687                                                 candidateFound = true;
 688                                                 break;
 689                                         }
 690                                 }
 691                         }
 692                 }
 693         }
 694
 695         if (candidateFound == true)
 696         {
 697                 r = E_SUCCESS;
 698         }
 699         else
 700         {
 701                 r = E_INVALID_ARG;
 702         }
 703
 704         // fall thru
 705 CATCH:
 706         SetLastResult(r);
 707
 708         if (r == E_SUCCESS)
 709         {
 710                 return true;
 711         }
 712
 713         return false;
 714 }
 715
 716 result
 717 _FileUtil::ConvertToSecureFile(const String& plainFilePath, const String& secureFilePath, const ByteBuffer* pKey)
 718 {
 719         SysTryReturnResult(NID_IO, plainFilePath.GetLength() > 0 && plainFilePath.GetLength() <= PATH_MAX, E_INVALID_ARG,
 720                            "Invalid argument was passed. Given file name length is not correct!");
 721         SysTryReturnResult(NID_IO, plainFilePath.EndsWith(L"/") == false, E_INVALID_ARG,
 722                            "Invalid argument was passed. Given file name is not correct! - ends with '/'");
 723
 724         SysTryReturnResult(NID_IO, secureFilePath.GetLength() > 0 && secureFilePath.GetLength() <= PATH_MAX, E_INVALID_ARG,
 725                            "Invalid argument was passed. Given file name length is not correct!");
 726         SysTryReturnResult(NID_IO, secureFilePath.EndsWith(L"/") == false, E_INVALID_ARG,
 727                            "Invalid argument was passed. Given file name is not correct! - ends with '/'");
 728
 729         int     fileSize = 0;
 730         int     readSize = 0;
 731         int lastBlockSize = 0;
 732         int bufferSize = 0;
 733         int blockCount = 0;
 734         int count = 0;
 735         unique_ptr<byte[]> pBuffer(null);
 736         result  r = E_SUCCESS;
 737
 738         if (File::IsFileExist(secureFilePath))
 739         {
 740                 r = GetLastResult();
 741                 if (!IsFailed(r))
 742                 {
 743                         r = E_FILE_ALREADY_EXIST;
 744                         SysLog(NID_IO, "[E_FILE_ALREADY_EXIST] The secure file already exist.");
 745                 }
 746                 else
 747                 {
 748                         SysLog(NID_IO, "[%s] Propagated.", GetErrorMessage(r));
 749                 }
 750                 return r;
 751         }
 752
 753         unique_ptr<File> pFile(new (std::nothrow) File());
 754         SysTryReturnResult(NID_IO, pFile != null, E_OUT_OF_MEMORY, "Unable to create Io::File");
 755
 756         r = pFile->Construct(plainFilePath, L"r", false);
 757         if (IsFailed(r))
 758         {
 759                 if (r == E_MAX_EXCEEDED)
 760                 {
 761                         r = E_IO;
 762                 }
 763                 SysLog(NID_IO, "[%s] Propagated.", GetErrorMessage(r));
 764                 return r;
 765         }
 766
 767         r = pFile->Seek(FILESEEKPOSITION_END, 0);
 768         SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 769
 770         fileSize = pFile->Tell();
 771
 772         r = pFile->Seek(FILESEEKPOSITION_BEGIN, 0);
 773         SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 774
 775         unique_ptr<File> pSecureFile(new (std::nothrow) File());
 776         SysTryReturnResult(NID_IO, pSecureFile != null, E_OUT_OF_MEMORY,
 777                         "Unable to create Io::File");
 778
 779         r = pSecureFile->Construct(secureFilePath, "w", *pKey);
 780         SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 781
 782         if (fileSize == 0)
 783         {
 784                 return r;
 785         }
 786
 787         lastBlockSize = fileSize % CIPHER_BLOCK_SIZE;
 788         if (lastBlockSize == 0)
 789         {
 790                 blockCount = fileSize / CIPHER_BLOCK_SIZE;
 791                 lastBlockSize = CIPHER_BLOCK_SIZE;
 792         }
 793         else
 794         {
 795                 blockCount = fileSize / CIPHER_BLOCK_SIZE + 1;
 796         }
 797
 798         for(count = 0; count < blockCount; count++)
 799         {
 800                 if (pBuffer != null)
 801                 {
 802                         memset(pBuffer.get(), 0, CIPHER_BLOCK_SIZE);
 803                 }
 804
 805                 if ((count + 1) == blockCount && pBuffer == null)
 806                 {
 807                         pBuffer.reset(new (std::nothrow) byte[lastBlockSize]);
 808                         SysTryReturnResult(NID_IO, pBuffer != null, E_OUT_OF_MEMORY, "The memory is insufficient.");
 809                         memset(pBuffer.get(), 0, lastBlockSize);
 810                         bufferSize = lastBlockSize;
 811                 }
 812
 813                 else if ((count + 1) != blockCount && pBuffer == null)
 814                 {
 815                         pBuffer.reset(new (std::nothrow) byte[CIPHER_BLOCK_SIZE]);
 816                         SysTryReturnResult(NID_IO, pBuffer != null, E_OUT_OF_MEMORY, "The memory is insufficient.");
 817                         memset(pBuffer.get(), 0, CIPHER_BLOCK_SIZE);
 818                         bufferSize = CIPHER_BLOCK_SIZE;
 819                 }
 820
 821                 readSize = pFile->Read(pBuffer.get(), bufferSize);
 822                 r = GetLastResult();
 823                 if (IsFailed(r))
 824                 {
 825                         if (r == E_END_OF_FILE)
 826                         {
 827                                 r = E_IO;
 828                         }
 829                         SysLog(NID_IO, "[%s] Propagated.", GetErrorMessage(r));
 830                         return r;
 831                 }
 832
 833                 r = pSecureFile->Write(pBuffer.get(), readSize);
 834                 SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 835         }
 836
 837         return E_SUCCESS;
 838 }
 839
 840 }} // Tizen::Io
 841