archivecommandline.cpp

由7-zip提供的压缩、解压缩程序

{
  for(int i = 0; i < command.Length();)
  {
    wchar_t c = MyCharUpper(command[i]);
    int statePos = kUpdatePairStateIDSet.Find(c);
    if (statePos < 0)
    {
      postString = command.Mid(i);
      return true;
    }
    i++;
    if (i >= command.Length())
      return false;
    int actionPos = kUpdatePairActionIDSet.Find(::MyCharUpper(command[i]));
    if (actionPos < 0)
      return false;
    actionSet.StateActions[statePos] = GetUpdatePairActionType(actionPos);
    if (kUpdatePairStateNotSupportedActions[statePos] == actionPos)
      return false;
    i++;
  }
  postString.Empty();
  return true;
}

static void ParseUpdateCommandString(CUpdateOptions &options, 
    const UStringVector &updatePostStrings, 
    const NUpdateArchive::CActionSet &defaultActionSet)
{
  for(int i = 0; i < updatePostStrings.Size(); i++)
  {
    const UString &updateString = updatePostStrings[i];
    if(updateString.CompareNoCase(kUpdateIgnoreItselfPostStringID) == 0)
    {
      if(options.UpdateArchiveItself)
      {
        options.UpdateArchiveItself = false;
        options.Commands.Delete(0);
      }
    }
    else
    {
      NUpdateArchive::CActionSet actionSet = defaultActionSet;

      UString postString;
      if (!ParseUpdateCommandString2(updateString, actionSet, postString))
        throw kUserErrorMessage;
      if(postString.IsEmpty())
      {
        if(options.UpdateArchiveItself)
          options.Commands[0].ActionSet = actionSet;
      }
      else
      {
        if(MyCharUpper(postString[0]) != kUpdateNewArchivePostCharID)
          throw kUserErrorMessage;
        CUpdateArchiveCommand uc;
        UString archivePath = postString.Mid(1);
        if (archivePath.IsEmpty())
          throw kUserErrorMessage;
        uc.ArchivePath.BaseExtension = options.ArchivePath.BaseExtension;
        uc.ArchivePath.VolExtension = options.ArchivePath.VolExtension;
        uc.ArchivePath.ParseFromPath(archivePath);
        uc.ActionSet = actionSet;
        options.Commands.Add(uc);
      }
    }
  }
}

static const char kByteSymbol = 'B';
static const char kKiloSymbol = 'K';
static const char kMegaSymbol = 'M';
static const char kGigaSymbol = 'G';

static bool ParseComplexSize(const UString &src, UInt64 &result)
{
  UString s = src;
  s.MakeUpper();

  const wchar_t *start = s;
  const wchar_t *end;
  UInt64 number = ConvertStringToUInt64(start, &end);
  int numDigits = (int)(end - start);
  if (numDigits == 0 || s.Length() > numDigits + 1)
    return false;
  if (s.Length() == numDigits)
  {
    result = number;
    return true;
  }
  int numBits;
  switch (s[numDigits])
  {
    case kByteSymbol:
      result = number;
      return true;
    case kKiloSymbol:
      numBits = 10;
      break;
    case kMegaSymbol:
      numBits = 20;
      break;
    case kGigaSymbol:
      numBits = 30;
      break;
    default:
      return false;
  }
  if (number >= ((UInt64)1 << (64 - numBits)))
    return false;
  result = number << numBits;
  return true;
}

static void SetAddCommandOptions(
    NCommandType::EEnum commandType, 
    const CParser &parser, 
    CUpdateOptions &options)
{
  NUpdateArchive::CActionSet defaultActionSet;
  switch(commandType)
  {
    case NCommandType::kAdd: 
      defaultActionSet = NUpdateArchive::kAddActionSet;
      break;
    case NCommandType::kDelete: 
      defaultActionSet = NUpdateArchive::kDeleteActionSet;
      break;
    default: 
      defaultActionSet = NUpdateArchive::kUpdateActionSet;
  }
  
  options.UpdateArchiveItself = true;
  
  options.Commands.Clear();
  CUpdateArchiveCommand updateMainCommand;
  updateMainCommand.ActionSet = defaultActionSet;
  options.Commands.Add(updateMainCommand);
  if(parser[NKey::kUpdate].ThereIs)
    ParseUpdateCommandString(options, parser[NKey::kUpdate].PostStrings, 
        defaultActionSet);
  if(parser[NKey::kWorkingDir].ThereIs)
  {
    const UString &postString = parser[NKey::kWorkingDir].PostStrings[0];
    if (postString.IsEmpty())
      NDirectory::MyGetTempPath(options.WorkingDir);
    else
      options.WorkingDir = postString;
  }
  if(options.SfxMode = parser[NKey::kSfx].ThereIs)
    options.SfxModule = parser[NKey::kSfx].PostStrings[0];

  if (parser[NKey::kVolume].ThereIs)
  {
    const UStringVector &sv = parser[NKey::kVolume].PostStrings;
    for (int i = 0; i < sv.Size(); i++)
    {
      UInt64 size;
      if (!ParseComplexSize(sv[i], size))
        throw "incorrect volume size";
      options.VolumesSizes.Add(size);
    }
  }
}

static void SetMethodOptions(const CParser &parser, CObjectVector<CProperty> &properties)
{
  if (parser[NKey::kProperty].ThereIs)
  {
    // options.MethodMode.Properties.Clear();
    for(int i = 0; i < parser[NKey::kProperty].PostStrings.Size(); i++)
    {
      CProperty property;
      const UString &postString = parser[NKey::kProperty].PostStrings[i];
      int index = postString.Find(L'=');
      if (index < 0)
        property.Name = postString;
      else
      {
        property.Name = postString.Left(index);
        property.Value = postString.Mid(index + 1);
      }
      properties.Add(property);
    }
  }
}


static void SetArchiveType(const UString &archiveType, 
#ifndef EXCLUDE_COM
    UString &filePath, CLSID &classID, 
#else
    UString &formatName, 
#endif
    UString &archiveExtension)
{
  CObjectVector<CArchiverInfo> archiverInfoVector;
  ReadArchiverInfoList(archiverInfoVector);
  if (archiverInfoVector.Size() == 0)
    throw "There are no installed archive handlers";
  if (archiveType.IsEmpty())
    throw "Incorrect archive type was assigned";
  for (int i = 0; i < archiverInfoVector.Size(); i++)
  {
    const CArchiverInfo &archiverInfo = archiverInfoVector[i];
    if (archiverInfo.Name.CompareNoCase(archiveType) == 0)
    {
      #ifndef EXCLUDE_COM
      classID = archiverInfo.ClassID;
      filePath = archiverInfo.FilePath;
      #else
      formatName = archiverInfo.Name;
        
      #endif

      archiveExtension = archiverInfo.GetMainExtension();
      return;
    }
  }
  throw "Incorrect archive type was assigned";
}


CArchiveCommandLineParser::CArchiveCommandLineParser(): parser(kNumSwitches) {}

void CArchiveCommandLineParser::Parse1(const UStringVector &commandStrings,
    CArchiveCommandLineOptions &options)
{
  try
  {
    parser.ParseStrings(kSwitchForms, commandStrings);
  }
  catch(...) 
  {
    throw kUserErrorMessage;
  }

  options.IsInTerminal = (isatty(fileno(stdin)) != 0);
  options.IsStdOutTerminal = (isatty(fileno(stdout)) != 0);
  options.IsStdErrTerminal = (isatty(fileno(stderr)) != 0);
  options.StdOutMode = parser[NKey::kStdOut].ThereIs;
  options.EnableHeaders = !parser[NKey::kDisableHeaders].ThereIs;
  options.HelpMode = parser[NKey::kHelp1].ThereIs || parser[NKey::kHelp2].ThereIs  || parser[NKey::kHelp3].ThereIs;

  #ifdef _WIN32
  options.LargePages = false;
  if (parser[NKey::kLargePages].ThereIs)
  {
    const UString &postString = parser[NKey::kLargePages].PostStrings.Front();
    if (postString.IsEmpty())
      options.LargePages = true;
  }
  #endif
}

void CArchiveCommandLineParser::Parse2(CArchiveCommandLineOptions &options)
{
  const UStringVector &nonSwitchStrings = parser.NonSwitchStrings;
  int numNonSwitchStrings = nonSwitchStrings.Size();
  if(numNonSwitchStrings < kMinNonSwitchWords)  
    throw kUserErrorMessage;

  if (!ParseArchiveCommand(nonSwitchStrings[kCommandIndex], options.Command))
    throw kUserErrorMessage;

  options.TechMode = parser[NKey::kTechMode].ThereIs;

  NRecursedType::EEnum recursedType;
  if (parser[NKey::kRecursed].ThereIs)
    recursedType = GetRecursedTypeFromIndex(parser[NKey::kRecursed].PostCharIndex);
  else
    recursedType = NRecursedType::kNonRecursed;

   UINT codePage = CP_ACP;

  bool thereAreSwitchIncludes = false;
  if (parser[NKey::kInclude].ThereIs)
  {
    thereAreSwitchIncludes = true;
    AddSwitchWildCardsToCensor(options.WildcardCensor, 
        parser[NKey::kInclude].PostStrings, true, recursedType, codePage);
  }
  if (parser[NKey::kExclude].ThereIs)
    AddSwitchWildCardsToCensor(options.WildcardCensor, 
        parser[NKey::kExclude].PostStrings, false, recursedType, codePage);
 
  int curCommandIndex = kCommandIndex + 1;
  bool thereIsArchiveName = !parser[NKey::kNoArName].ThereIs;
  if (thereIsArchiveName)
  {
    if(curCommandIndex >= numNonSwitchStrings)  
      throw kUserErrorMessage;
    options.ArchiveName = nonSwitchStrings[curCommandIndex++];
  }

  AddToCensorFromNonSwitchesStrings(
      curCommandIndex, options.WildcardCensor, 
      nonSwitchStrings, recursedType, thereAreSwitchIncludes, codePage);

  options.YesToAll = parser[NKey::kYes].ThereIs;

#ifdef HAVE_LSTAT
  global_use_lstat = !parser[NKey::kUseLStat].ThereIs;
#endif

  bool isExtractGroupCommand = options.Command.IsFromExtractGroup();

  options.PasswordEnabled = parser[NKey::kPassword].ThereIs;

  if(options.PasswordEnabled)
    options.Password = parser[NKey::kPassword].PostStrings[0];

  options.StdInMode = parser[NKey::kStdIn].ThereIs;
  options.ShowDialog = parser[NKey::kShowDialog].ThereIs;

  if(isExtractGroupCommand || options.Command.CommandType == NCommandType::kList)
  {
    if (options.StdInMode)
      throw "reading archives from stdin is not implemented";
    if (!options.WildcardCensor.AllAreRelative())
      throw "cannot use absolute pathnames for this command";

    NWildcard::CCensor archiveWildcardCensor;

    if (parser[NKey::kArInclude].ThereIs)
    {
      AddSwitchWildCardsToCensor(archiveWildcardCensor, 
        parser[NKey::kArInclude].PostStrings, true, NRecursedType::kNonRecursed, codePage);
    }
    if (parser[NKey::kArExclude].ThereIs)
      AddSwitchWildCardsToCensor(archiveWildcardCensor, 
      parser[NKey::kArExclude].PostStrings, false, NRecursedType::kNonRecursed, codePage);

    bool directlyAddArchiveName = false;
    if (thereIsArchiveName) {
      if ((options.ArchiveName.Find(kUniversalWildcard) == -1) && (options.ArchiveName.Find(L"?") == -1)) {
        // no wildcard => no need to scan
        directlyAddArchiveName = true;
      } else {
        AddCommandLineWildCardToCensr(archiveWildcardCensor, options.ArchiveName, true, NRecursedType::kNonRecursed);
      }
    }

    #ifdef _WIN32
    ConvertToLongNames(archiveWildcardCensor);
    #endif

    archiveWildcardCensor.ExtendExclude();

    CObjectVector<CDirItem> dirItems;
    {
      UStringVector errorPaths;
      CRecordVector<DWORD> errorCodes;
      HRESULT res = EnumerateItems(archiveWildcardCensor, dirItems, NULL, errorPaths, errorCodes);
      if (res != S_OK || errorPaths.Size() > 0)
        throw "cannot find archive";
    }
    UStringVector archivePaths;
    int i;
    for (i = 0; i < dirItems.Size(); i++)
      archivePaths.Add(dirItems[i].FullPath);

    // Because the pathname of archive can be a symbolic link
    // do not use "AddCommandLineWildCardToCensr(archiveWildcardCensor, options.ArchiveName"
    if (directlyAddArchiveName)
      archivePaths.Add(options.ArchiveName);

    if (archivePaths.Size() == 0)
      throw "there is no such archive";

    UStringVector archivePathsFull;

    for (i = 0; i < archivePaths.Size(); i++)
    {
      UString fullPath;
      NFile::NDirectory::MyGetFullPathName(archivePaths[i], fullPath);
      archivePathsFull.Add(fullPath);
    }
    CIntVector indices;
    SortStringsToIndices(archivePathsFull, indices);
    options.ArchivePathsSorted.Reserve(indices.Size());
    options.ArchivePathsFullSorted.Reserve(indices.Size());
    for (i = 0; i < indices.Size(); i++)
    {
      options.ArchivePathsSorted.Add(archivePaths[indices[i]]);
      options.ArchivePathsFullSorted.Add(archivePathsFull[indices[i]]);
    }

    if(isExtractGroupCommand)
    {
      SetMethodOptions(parser, options.ExtractProperties); 
      if (options.StdOutMode && options.IsStdOutTerminal)
        throw kTerminalOutError;
      if(parser[NKey::kOutputDir].ThereIs)
      {
        options.OutputDir = parser[NKey::kOutputDir].PostStrings[0];
        NFile::NName::NormalizeDirPathPrefix(options.OutputDir);
      }

      options.OverwriteMode = NExtract::NOverwriteMode::kAskBefore;
      if(parser[NKey::kOverwrite].ThereIs)
        options.OverwriteMode = 
            k_OverwriteModes[parser[NKey::kOverwrite].PostCharIndex];
      else if (options.YesToAll)
        options.OverwriteMode = NExtract::NOverwriteMode::kWithoutPrompt;
    }
  }
  else if(options.Command.IsFromUpdateGroup())
  {
    CUpdateOptions &updateOptions = options.UpdateOptions;

    UString archiveType;
    if(parser[NKey::kArchiveType].ThereIs)
      archiveType = parser[NKey::kArchiveType].PostStrings[0];
    else
      archiveType = kDefaultArchiveType;

    UString typeExtension;
    if (!archiveType.IsEmpty())
    {
      #ifndef EXCLUDE_COM
      SetArchiveType(archiveType, updateOptions.MethodMode.FilePath, 
          updateOptions.MethodMode.ClassID, typeExtension);
      #else
      SetArchiveType(archiveType, updateOptions.MethodMode.Name, typeExtension);
      #endif
    }
    UString extension = typeExtension;
    if(parser[NKey::kSfx].ThereIs)
      extension = kSFXExtension;
    updateOptions.ArchivePath.BaseExtension = extension;
    updateOptions.ArchivePath.VolExtension = typeExtension;
    updateOptions.ArchivePath.ParseFromPath(options.ArchiveName);
    SetAddCommandOptions(options.Command.CommandType, parser, updateOptions); 
    
    SetMethodOptions(parser, updateOptions.MethodMode.Properties); 

    options.EnablePercents = !parser[NKey::kDisablePercents].ThereIs;

    if (options.EnablePercents)
    {
      if ((options.StdOutMode && !options.IsStdErrTerminal) || 
         (!options.StdOutMode && !options.IsStdOutTerminal))  
        options.EnablePercents = false;
    }

    if (updateOptions.EMailMode = parser[NKey::kEmail].ThereIs)
    {
      updateOptions.EMailAddress = parser[NKey::kEmail].PostStrings.Front();
      if (updateOptions.EMailAddress.Length() > 0)
        if (updateOptions.EMailAddress[0] == L'.')
        {
          updateOptions.EMailRemoveAfter = true;
          updateOptions.EMailAddress.Delete(0);
        }
    }

    updateOptions.StdOutMode = options.StdOutMode;
    updateOptions.StdInMode = options.StdInMode;

    if (updateOptions.StdOutMode && updateOptions.EMailMode)
      throw "stdout mode and email mode cannot be combined";
    if (updateOptions.StdOutMode && options.IsStdOutTerminal)
      throw kTerminalOutError;
    if(updateOptions.StdInMode)
      updateOptions.StdInFileName = parser[NKey::kStdIn].PostStrings.Front();

    #ifdef _WIN32
    ConvertToLongNames(options.WildcardCensor);
    #endif
  }
  else 
    throw kUserErrorMessage;
  options.WildcardCensor.ExtendExclude();
}