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                 SysSecureLogException(NID_IO, E_FILE_NOT_FOUND, "[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         char* pCopyBuf = null;
 221         result r = E_SUCCESS;
 222
 223         unique_ptr<char[]> pSrcpath(_StringConverter::CopyToCharArrayN(srcFilePath));
 224         SysTryReturn(NID_IO, pSrcpath != null, GetLastResult(), GetLastResult(),
 225                            "[%s] Invalid source file path.", GetErrorMessage(GetLastResult()));
 226
 227         unique_ptr<char[]> pDstpath(_StringConverter::CopyToCharArrayN(destFilePath));
 228         SysTryReturn(NID_IO, pDstpath != null, GetLastResult(), GetLastResult(),
 229                            "[%s] Invalid destination file path.", GetErrorMessage(GetLastResult()));
 230
 231         SysTryReturnResult(NID_IO, _FileUtil::IsFileExist(srcFilePath) == true, E_FILE_NOT_FOUND,
 232                            "Source file(%s) does not exist.", pSrcpath.get());
 233
 234         if ((_FileUtil::IsFileExist(destFilePath) == true) && (failIfExist == true))
 235         {
 236                 r = E_FILE_ALREADY_EXIST;
 237                 SysLog(NID_IO, "[E_FILE_ALREADY_EXIST] Destination file already exists.");
 238                 return r;
 239         }
 240
 241         srcFd = open64(pSrcpath.get(), O_RDONLY);
 242         if (srcFd == -1)
 243         {
 244                 r = __ConvertNativeErrorToResult(errno);
 245                 SysLogException(NID_IO, r, "[%s] Failed to open file (%s).", GetErrorMessage(r), pSrcpath.get());
 246                 return r;
 247         }
 248         dstFd = open64(pDstpath.get(), O_WRONLY | O_CREAT | O_TRUNC, 0644);
 249         if (dstFd == -1)
 250         {
 251                 r = __ConvertNativeErrorToResult(errno);
 252                 SysLogException(NID_IO, r, "[%s] Failed to open file (%s), errno: %d (%s)",
 253                                    GetErrorMessage(r), pDstpath.get(), errno, strerror(errno));
 254                 goto CATCH;
 255         }
 256
 257         pBuffer = new (std::nothrow) char[_MAX_COPY_BYTES];
 258         SysTryCatch(NID_IO, pBuffer != null, r = E_OUT_OF_MEMORY, E_OUT_OF_MEMORY, "[E_OUT_OF_MEMORY] The memory is insufficient.");
 259
 260         pCopyBuf = pBuffer;
 261         do
 262         {
 263                 do
 264                 {
 265                         readBytes = read(srcFd, pCopyBuf, _MAX_COPY_BYTES);
 266                 }
 267                 while (readBytes < 0 && errno == EINTR);
 268                 if (readBytes < 0)
 269                 {
 270                         r = __ConvertNativeErrorToResult(errno);
 271                         SysLogException(NID_IO, r, "[%s] Failed to read from source file (%s), errno: %d (%s)",
 272                                         GetErrorMessage(r), pSrcpath.get(), errno, strerror(errno));
 273                         goto CATCH;
 274                 }
 275                 else if (readBytes == 0)
 276                 {
 277                         break;
 278                 }
 279                 remainingBytes = readBytes;
 280 RETRY:
 281                 do
 282                 {
 283                         writtenBytes = write(dstFd, pCopyBuf, remainingBytes);
 284                 }
 285                 while (writtenBytes < 0 && errno == EINTR);
 286                 if (writtenBytes < 0)
 287                 {
 288                         r = __ConvertNativeErrorToResult(errno);
 289                         SysLogException(NID_IO, r, "[%s] Failed to write to destination file (%s), errno: %d (%s)",
 290                                         GetErrorMessage(r), pDstpath.get(), errno, strerror(errno));
 291                         goto CATCH;
 292                 }
 293                 else if (writtenBytes < remainingBytes)
 294                 {
 295                         remainingBytes = remainingBytes - writtenBytes;
 296                         pCopyBuf = const_cast< char* >(pCopyBuf) + writtenBytes;
 297                         goto RETRY;
 298                 }
 299         }
 300         while (readBytes);
 301
 302         // fall through
 303 CATCH:
 304         if (srcFd != -1)
 305         {
 306                 close(srcFd);
 307         }
 308         if (dstFd != -1)
 309         {
 310                 fsync(dstFd);
 311                 close(dstFd);
 312         }
 313         delete[] pBuffer;
 314
 315         return r;
 316 }
 317
 318 result
 319 _FileUtil::GetAttributes(const String& filePath, FileAttributes& attribute)
 320 {
 321         DateTime dateTime;
 322         DateTime modifiedTime;
 323         off64_t fileSize = 0;
 324         unsigned long attr = 0;
 325         result r = E_SUCCESS;
 326         struct tm* pTm = null;
 327         String fileName = L"";
 328         bool hidden = false;
 329
 330         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 331         SysTryReturn(NID_IO, (pFilePath != null), GetLastResult(), GetLastResult(), "[%s] Invalid source file path.",
 332                            GetErrorMessage(GetLastResult()));
 333
 334         struct stat64 statbuf;
 335         if (int ret = stat64(pFilePath.get(), &statbuf) == -1)
 336         {
 337                 r = __ConvertNativeErrorToResult(errno);
 338                 SysLogException(NID_IO, r, "[%s] Failed to get file (%s) status.", GetErrorMessage(r), pFilePath.get());
 339                 return r;
 340         }
 341
 342         // size
 343         fileSize = statbuf.st_size;
 344
 345         // attributes
 346         attr = statbuf.st_mode;
 347
 348         pTm = localtime(&statbuf.st_mtime);
 349         SysTryReturnResult(NID_IO, pTm != null, E_SYSTEM, "Failed to call localtime() (%s).", strerror(errno));
 350         r = dateTime.SetValue(_BASE_YEAR + pTm->tm_year, 1 + pTm->tm_mon, pTm->tm_mday, pTm->tm_hour, pTm->tm_min, pTm->tm_sec);
 351         SysTryReturn(NID_IO, (!IsFailed(r)), r, r, "[%s] Failed to set DateTime.", GetErrorMessage(r));
 352
 353         pTm = localtime(&statbuf.st_mtime);
 354         SysTryReturnResult(NID_IO, pTm != null, E_SYSTEM, "Failed to call localtime() (%s).", strerror(errno));
 355         r = modifiedTime.SetValue(_BASE_YEAR + pTm->tm_year, 1 + pTm->tm_mon, pTm->tm_mday, pTm->tm_hour, pTm->tm_min, pTm->tm_sec);
 356         SysTryReturn(NID_IO, (!IsFailed(r)), r, r, "[%s] Failed to set DateTime.", GetErrorMessage(r));
 357
 358         fileName = _FileUtil::GetFileName(filePath);
 359         if (fileName.StartsWith(L".", 0)) // including . and ..
 360         {
 361                 hidden = true;
 362         }
 363
 364         _FileAttributesImpl::GetInstance(attribute)->Set(dateTime, modifiedTime, fileSize, attr, hidden);
 365
 366         return E_SUCCESS;
 367 }
 368
 369 String
 370 _FileUtil::GetFileName(const String& filePath)
 371 {
 372         String fileName;
 373         int pos = -1;
 374
 375         result r = filePath.LastIndexOf(L'/', filePath.GetLength() - 1, pos);
 376         SysTryReturn(NID_IO, !IsFailed(r), fileName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 377
 378         r = filePath.SubString(pos + 1, fileName);
 379         SysTryReturn(NID_IO, !IsFailed(r), fileName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 380         SysTryReturn(NID_IO, fileName.GetLength() > 0 && fileName.GetLength() <= NAME_MAX, fileName, E_INVALID_ARG,
 381                         "[E_INVALID_ARG] The length of file name is zero or exceeds system limitations.");
 382
 383         SetLastResult(E_SUCCESS);
 384         return fileName;
 385 }
 386
 387 String
 388 _FileUtil::GetFileExtension(const String& filePath)
 389 {
 390         String extName;
 391         int pos = -1;
 392
 393         result r = filePath.LastIndexOf(L'/', filePath.GetLength() - 1, pos);
 394         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 395
 396         String fileName;
 397         r = filePath.SubString(pos + 1, fileName);
 398         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 399         SysTryReturn(NID_IO, fileName.GetLength() > 0 && fileName.GetLength() <= NAME_MAX, extName, E_INVALID_ARG,
 400                         "[E_INVALID_ARG] The length of file name is zero or exceeds system limitations.");
 401
 402         r = fileName.LastIndexOf(L'.', fileName.GetLength() - 1, pos);
 403         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 404
 405         r = fileName.SubString(pos + 1, extName);
 406         SysTryReturn(NID_IO, !IsFailed(r), extName, E_INVALID_ARG, "[E_INVALID_ARG] The file path is invalid.");
 407
 408         SetLastResult(E_SUCCESS);
 409         return extName;
 410 }
 411
 412 bool
 413 _FileUtil::IsFileExist(const String& filePath)
 414 {
 415         int ret = 0;
 416         result r = E_SUCCESS;
 417
 418         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 419         SysTryReturn(NID_IO, (pFilePath != null), false, GetLastResult(), ("[%s] Invalid file path."),
 420                            GetErrorMessage(GetLastResult()));
 421
 422         ret = access(pFilePath.get(), F_OK);
 423         if (ret != 0)
 424         {
 425                 switch (errno)
 426                 {
 427                 case ENAMETOOLONG:
 428                         r = E_INVALID_ARG;
 429                         break;
 430                 case ENOENT:
 431                         r = E_SUCCESS;
 432                         break;
 433                 default:
 434                         r = __ConvertNativeErrorToResult(errno);
 435                         break;
 436                 }
 437         }
 438
 439         SetLastResult(r);
 440         return (ret == 0) ? true : false;
 441 }
 442
 443 #if 0
 444 bool
 445 _FileUtil::IsEncrypted(const String& filePath)
 446 {
 447         result  r = E_SUCCESS;
 448         // TODO: int    pathKind;
 449         int     readItems = 0;
 450         int     fileLength = 0;
 451         bool    encrypted = false;
 452         // TODO: bool   checkPrivilege = false;
 453         byte    secureHeader[SECURE_FILE_HEADER_SIZE_V1 + SECURE_IO_LOF_SIZE];
 454         byte    reservedValue[SECURE_IO_STATIC_BIN_LEN] = {0xCA, 0xFE, 0xBE, 0xBE, 0xDA, 0xEF, 0xEB, 0xEB};
 455         char    magicNum1[SECURE_IO_MAGIC_NUMBER_SIZE] = {0xCA, 0xFE, 0xBE, 0xBE};
 456         char    magicNum2[SECURE_IO_MAGIC_NUMBER_SIZE] = {0xDA, 0xEF, 0xEF, 0xEB};
 457         FILE*   pFile = null;
 458
 459         unique_ptr<char[]> pFilePath(_StringConverter::CopyToCharArrayN(filePath));
 460         SysTryReturn(NID_IO, pFilePath != null, false, E_INVALID_ARG, "[E_INVALID_ARG] CopyToCharArrayN failed!");
 461
 462         fileLength = strlen(pFilePath.get());
 463         SysTryReturn(NID_IO, fileLength > 0, false, E_INVALID_ARG, "[E_INVALID_ARG] CopyToCharArrayN failed!");
 464
 465         if (pFilePath[fileLength - 1] == ('/'))
 466         {
 467                 pFilePath[fileLength - 1] = ('\0'); // remove last '/' character if exists.
 468         }
 469
 470 //      // TODO: check accessibility to path
 471 //      r = CheckAccessibilityToPath(pFilePath, &pathKind, 0);
 472 //      if(IsFailed(r))
 473 //              goto CATCH;
 474 //
 475 //      if(pathKind == __PATH_KIND_AUTHORIZED_MMC)
 476 //      {
 477 //              __CheckPrivilege(PRV_INSTALLATION, checkPrivilege);
 478 //              if(!checkPrivilege)
 479 //              {
 480 //                      r = E_ILLEGAL_ACCESS;
 481 //                      goto CATCH;
 482 //              }
 483 //      }
 484 //      else if(pathKind == __PATH_KIND_AUTHORIZED_LINK || pathKind == __PATH_KIND_AUTHORIZED_NPKI ||
 485 //                      pathKind == __PATH_KIND_AUTHORIZED_PRELOADED_MEDIA)
 486 //      {
 487 //              __CheckPrivilege(PRV_PRIVILEGED_IO, checkPrivilege);
 488 //              if(!checkPrivilege)
 489 //              {
 490 //                      r = E_ILLEGAL_ACCESS;
 491 //                      goto CATCH;
 492 //              }
 493 //      }
 494 //      else if (pathKind == __PATH_KIND_APP_DENY)
 495 //      {
 496 //              r = E_ILLEGAL_ACCESS;
 497 //              goto CATCH;
 498 //      }
 499
 500         pFile = fopen(pFilePath.get(), "r");
 501         if (pFile == null)
 502         {
 503                 r = __ConvertNativeErrorToResult(errno);
 504                 SysLog(NID_IO, "[%s] Failed to open file (%s) in openMode (%s), (errno: %d).", GetErrorMessage(r), pFilePath.get(), "r", errno);
 505                 goto CATCH;
 506         }
 507
 508         readItems = fread(secureHeader, 1, SECURE_FILE_HEADER_SIZE_V1 + SECURE_IO_LOF_SIZE, pFile);
 509
 510         if (readItems < (SECURE_FILE_HEADER_SIZE_V1 + SECURE_IO_LOF_SIZE))
 511         {
 512                 int eof = feof((FILE*)pFile);
 513                 if (eof)
 514                 {
 515                         //No error;
 516                         encrypted = false;
 517                         goto CATCH;
 518                 }
 519
 520                 r = __ConvertNativeErrorToResult(errno);
 521                 SysLog(NID_IO, "[%s] Failed to open file (%s) in openMode (%s), (errno: %d).", GetErrorMessage(r), pFilePath.get(), "r", errno);
 522                 goto CATCH;
 523         }
 524
 525         if (memcmp(secureHeader, SECURE_FILE_HEADER_STRING, SECURE_FILE_HEADER_STRING_SIZE) == 0 && \
 526                 memcmp(secureHeader + SECURE_FILE_HEADER_STRING_SIZE, reservedValue, SECURE_IO_STATIC_BIN_LEN) == 0)
 527         {
 528                 encrypted = true;
 529         }
 530         else if (memcmp(secureHeader, SECURE_REG_HEADER_STRING, SECURE_REG_HEADER_STRING_SIZE) == 0 && \
 531                 memcmp(secureHeader + SECURE_REG_HEADER_STRING_SIZE, reservedValue, SECURE_IO_STATIC_BIN_LEN) == 0)
 532         {
 533                 encrypted = true;
 534         }
 535         else if ((memcmp(secureHeader, magicNum1, SECURE_IO_MAGIC_NUMBER_SIZE) == 0) &&
 536                         (memcmp(secureHeader + SECURE_IO_STATIC_BIN_LEN, magicNum2, SECURE_IO_MAGIC_NUMBER_SIZE) == 0))
 537
 538         {
 539                 encrypted = true;
 540         }
 541         else
 542         {
 543                 encrypted = false;
 544         }
 545
 546         // fall thru
 547 CATCH:
 548
 549         if (pFile)
 550         {
 551                 fclose(pFile);
 552         }
 553
 554         SetLastResult(r);
 555         return encrypted;
 556 }
 557 #endif
 558
 559 bool
 560 _FileUtil::IsAppPath(const String& filePath)
 561 {
 562         result r = E_SUCCESS;
 563
 564         if (VerifyFilePath(filePath, FILEPATH_TYPE_APP))
 565         {
 566                 SetLastResult(E_SUCCESS);
 567                 return true;
 568         }
 569         r = GetLastResult();
 570
 571         SetLastResult(r);
 572         return false;
 573 }
 574
 575 bool
 576 _FileUtil::IsMediaPath(const String& filePath)
 577 {
 578         result r = E_SUCCESS;
 579
 580         if (VerifyFilePath(filePath, FILEPATH_TYPE_MEDIA))
 581         {
 582                 SetLastResult(E_SUCCESS);
 583                 return true;
 584         }
 585         r = GetLastResult();
 586
 587         SetLastResult(r);
 588         return false;
 589 }
 590
 591 bool
 592 _FileUtil::IsSystemPath(const String& filePath)
 593 {
 594         result r = E_SUCCESS;
 595
 596         if (VerifyFilePath(filePath, FILEPATH_TYPE_SYSTEM))
 597         {
 598                 SetLastResult(E_SUCCESS);
 599                 return true;
 600         }
 601         r = GetLastResult();
 602
 603         SetLastResult(r);
 604         return false;
 605 }
 606
 607 bool
 608 _FileUtil::VerifyFilePath(const String& filePath, _FilePathType pathType)
 609 {
 610         result r = E_SUCCESS;
 611         String tmpStr("");
 612         String absolutePath("");
 613         int i = 0;
 614         int index = 0;
 615         int pathCount = 0;
 616         char** ppPathList = null;
 617         bool candidateFound = false;
 618         wchar_t ch = L'\0';
 619
 620         //TODO Apply realpath after data caging.
 621         //
 622         //char resolved_path[1024];
 623         //char* pFilePath = _StringConverter::CopyToCharArrayN(filePath);
 624         //
 625         //r = GetLastResult();
 626         //
 627         //SysTryCatch(NID_IO, pFilePath != null,
 628         //        r, r, "[%s] Failed to get file path", GetErrorMessage(r));
 629
 630
 631         //SysLog(NID_IO, "convert: %s", pFilePath);
 632         //if (realpath(pFilePath, resolved_path) !=0)
 633         //{
 634         //      r = __ConvertNativeErrorToResult(errno);
 635         //      SysLog(NID_IO, "convert Error!!! [%s] %s", resolved_path, GetErrorMessage(r));
 636         //      delete[] pFilePath;
 637         //      return false;
 638         //      }
 639         //
 640         //SysLog(NID_IO, "convert result: %s", resolved_path);
 641         //absolutePath.Append(resolved_path);
 642         //delete[] pFilePath;
 643
 644         absolutePath.Append(filePath);
 645         // This code does not handle paths without prefix '/' ex: "Home/myfile"
 646         // since it depends on cwd.
 647         switch (pathType)
 648         {
 649         case FILEPATH_TYPE_APP:
 650                 pathCount = MAX_FILEPATH_APP;
 651                 ppPathList = const_cast <char**>(filePathAppPrefix);
 652                 break;
 653
 654         case FILEPATH_TYPE_MEDIA:
 655                 pathCount = MAX_FILEPATH_MEDIA;
 656                 ppPathList = const_cast <char**>(filePathMediaPrefix);
 657                 break;
 658
 659         case FILEPATH_TYPE_SYSTEM:
 660                 pathCount = MAX_FILEPATH_SYSTEM;
 661                 ppPathList = const_cast <char**>(filePathSystemPrefix);
 662                 break;
 663
 664         default:
 665                 r = E_INVALID_ARG;
 666                 goto CATCH;
 667         }
 668
 669         absolutePath.GetCharAt(absolutePath.GetLength() - 1, ch);
 670         if (ch != L'/') // if last char of absolutePath is not '/' then append it to make path parsing easier
 671         {
 672                 absolutePath.Append(L'/');
 673         }
 674
 675         for (i = 0; i < pathCount; i++)
 676         {
 677                 tmpStr.Clear();
 678                 tmpStr.Append(ppPathList[i]);
 679
 680                 if (absolutePath.IndexOf(tmpStr, 0, index) == E_SUCCESS)
 681                 {
 682                         if (index == 0)
 683                         {
 684                                 ch = L'\0';
 685                                 if (absolutePath.GetCharAt(tmpStr.GetLength(), ch) == E_SUCCESS)
 686                                 {
 687                                         if (ch == L'/') // validate exact path. paths like /Home123/file.txt is not supported.
 688                                         {
 689                                                 candidateFound = true;
 690                                                 break;
 691                                         }
 692                                 }
 693                         }
 694                 }
 695         }
 696
 697         if (candidateFound == true)
 698         {
 699                 r = E_SUCCESS;
 700         }
 701         else
 702         {
 703                 r = E_INVALID_ARG;
 704         }
 705
 706         // fall thru
 707 CATCH:
 708         SetLastResult(r);
 709
 710         if (r == E_SUCCESS)
 711         {
 712                 return true;
 713         }
 714
 715         return false;
 716 }
 717
 718 result
 719 _FileUtil::ConvertToSecureFile(const String& plainFilePath, const String& secureFilePath, const ByteBuffer* pKey)
 720 {
 721         SysTryReturnResult(NID_IO, plainFilePath.GetLength() > 0 && plainFilePath.GetLength() <= PATH_MAX, E_INVALID_ARG,
 722                            "Invalid argument was passed. Given file name length is not correct!");
 723         SysTryReturnResult(NID_IO, plainFilePath.EndsWith(L"/") == false, E_INVALID_ARG,
 724                            "Invalid argument was passed. Given file name is not correct! - ends with '/'");
 725
 726         SysTryReturnResult(NID_IO, secureFilePath.GetLength() > 0 && secureFilePath.GetLength() <= PATH_MAX, E_INVALID_ARG,
 727                            "Invalid argument was passed. Given file name length is not correct!");
 728         SysTryReturnResult(NID_IO, secureFilePath.EndsWith(L"/") == false, E_INVALID_ARG,
 729                            "Invalid argument was passed. Given file name is not correct! - ends with '/'");
 730
 731         int     fileSize = 0;
 732         int     readSize = 0;
 733         int lastBlockSize = 0;
 734         int bufferSize = 0;
 735         int blockCount = 0;
 736         int count = 0;
 737         unique_ptr<byte[]> pBuffer(null);
 738         result  r = E_SUCCESS;
 739
 740         if (File::IsFileExist(secureFilePath))
 741         {
 742                 r = GetLastResult();
 743                 if (!IsFailed(r))
 744                 {
 745                         r = E_FILE_ALREADY_EXIST;
 746                         SysLog(NID_IO, "[E_FILE_ALREADY_EXIST] The secure file already exist.");
 747                 }
 748                 else
 749                 {
 750                         SysLog(NID_IO, "[%s] Propagated.", GetErrorMessage(r));
 751                 }
 752                 return r;
 753         }
 754
 755         unique_ptr<File> pFile(new (std::nothrow) File());
 756         SysTryReturnResult(NID_IO, pFile != null, E_OUT_OF_MEMORY, "Unable to create Io::File");
 757
 758         r = pFile->Construct(plainFilePath, L"r", false);
 759         if (IsFailed(r))
 760         {
 761                 if (r == E_MAX_EXCEEDED)
 762                 {
 763                         r = E_IO;
 764                 }
 765                 SysLog(NID_IO, "[%s] Propagated.", GetErrorMessage(r));
 766                 return r;
 767         }
 768
 769         r = pFile->Seek(FILESEEKPOSITION_END, 0);
 770         SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 771
 772         fileSize = pFile->Tell();
 773
 774         r = pFile->Seek(FILESEEKPOSITION_BEGIN, 0);
 775         SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 776
 777         unique_ptr<File> pSecureFile(new (std::nothrow) File());
 778         SysTryReturnResult(NID_IO, pSecureFile != null, E_OUT_OF_MEMORY,
 779                         "Unable to create Io::File");
 780
 781         r = pSecureFile->Construct(secureFilePath, "w", *pKey);
 782         SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 783
 784         if (fileSize == 0)
 785         {
 786                 return r;
 787         }
 788
 789         lastBlockSize = fileSize % CIPHER_BLOCK_SIZE;
 790         if (lastBlockSize == 0)
 791         {
 792                 blockCount = fileSize / CIPHER_BLOCK_SIZE;
 793                 lastBlockSize = CIPHER_BLOCK_SIZE;
 794         }
 795         else
 796         {
 797                 blockCount = fileSize / CIPHER_BLOCK_SIZE + 1;
 798         }
 799
 800         for(count = 0; count < blockCount; count++)
 801         {
 802                 if (pBuffer != null)
 803                 {
 804                         memset(pBuffer.get(), 0, CIPHER_BLOCK_SIZE);
 805                 }
 806
 807                 if ((count + 1) == blockCount && pBuffer == null)
 808                 {
 809                         pBuffer.reset(new (std::nothrow) byte[lastBlockSize]);
 810                         SysTryReturnResult(NID_IO, pBuffer != null, E_OUT_OF_MEMORY, "The memory is insufficient.");
 811                         memset(pBuffer.get(), 0, lastBlockSize);
 812                         bufferSize = lastBlockSize;
 813                 }
 814
 815                 else if ((count + 1) != blockCount && pBuffer == null)
 816                 {
 817                         pBuffer.reset(new (std::nothrow) byte[CIPHER_BLOCK_SIZE]);
 818                         SysTryReturnResult(NID_IO, pBuffer != null, E_OUT_OF_MEMORY, "The memory is insufficient.");
 819                         memset(pBuffer.get(), 0, CIPHER_BLOCK_SIZE);
 820                         bufferSize = CIPHER_BLOCK_SIZE;
 821                 }
 822
 823                 readSize = pFile->Read(pBuffer.get(), bufferSize);
 824                 r = GetLastResult();
 825                 if (IsFailed(r))
 826                 {
 827                         if (r == E_END_OF_FILE)
 828                         {
 829                                 r = E_IO;
 830                         }
 831                         SysLog(NID_IO, "[%s] Propagated.", GetErrorMessage(r));
 832                         return r;
 833                 }
 834
 835                 r = pSecureFile->Write(pBuffer.get(), readSize);
 836                 SysTryReturn(NID_IO, r == E_SUCCESS , r, r, "[%s] Propagated", GetErrorMessage(r));
 837         }
 838
 839         return E_SUCCESS;
 840 }
 841
 842 }} // Tizen::Io
 843