archivecommandline.cpp

一个7ZIP的解压源码。比较详细。里面含有四种语言的实现代码。

// ArchiveCommandLine.cpp

#include "StdAfx.h"

#ifdef _WIN32
#include <io.h>
#endif
#include <stdio.h>

#include "Common/ListFileUtils.h"
#include "Common/StringConvert.h"
#include "Common/StringToInt.h"

#include "Windows/FileName.h"
#include "Windows/FileDir.h"
#ifdef _WIN32
#include "Windows/FileMapping.h"
#include "Windows/Synchronization.h"
#endif

#include "ArchiveCommandLine.h"
#include "UpdateAction.h"
#include "Update.h"
#include "SortUtils.h"
#include "EnumDirItems.h"

extern bool g_CaseSensitive;

#if _MSC_VER >= 1400
#define MY_isatty_fileno(x) _isatty(_fileno(x))
#else
#define MY_isatty_fileno(x) isatty(fileno(x))
#endif

#define MY_IS_TERMINAL(x) (MY_isatty_fileno(x) != 0); 

using namespace NCommandLineParser;
using namespace NWindows;
using namespace NFile;

namespace NKey {
enum Enum
{
  kHelp1 = 0,
  kHelp2,
  kHelp3,
  kDisableHeaders,
  kDisablePercents,
  kArchiveType,
  kYes,
  kPassword,
  kProperty,
  kOutputDir,
  kWorkingDir,
  kInclude,
  kExclude,
  kArInclude,
  kArExclude,
  kNoArName,
  kUpdate,
  kVolume,
  kRecursed,
  kSfx,
  kStdIn,
  kStdOut,
  kOverwrite,
  kEmail,
  kShowDialog,
  kLargePages,
  kCharSet,
  kTechMode,
  kShareForWrite,
  kCaseSensitive
};

}


static const wchar_t kRecursedIDChar = 'R';
static const wchar_t *kRecursedPostCharSet = L"0-";

namespace NRecursedPostCharIndex {
  enum EEnum 
  {
    kWildCardRecursionOnly = 0, 
    kNoRecursion = 1
  };
}

static const char kImmediateNameID = '!';
static const char kMapNameID = '#';
static const char kFileListID = '@';

static const char kSomeCludePostStringMinSize = 2; // at least <@|!><N>ame must be
static const char kSomeCludeAfterRecursedPostStringMinSize = 2; // at least <@|!><N>ame must be

static const wchar_t *kOverwritePostCharSet = L"asut";

NExtract::NOverwriteMode::EEnum k_OverwriteModes[] =
{
  NExtract::NOverwriteMode::kWithoutPrompt,
  NExtract::NOverwriteMode::kSkipExisting,
  NExtract::NOverwriteMode::kAutoRename,
  NExtract::NOverwriteMode::kAutoRenameExisting
};

static const CSwitchForm kSwitchForms[] = 
  {
    { L"?",  NSwitchType::kSimple, false },
    { L"H",  NSwitchType::kSimple, false },
    { L"-HELP",  NSwitchType::kSimple, false },
    { L"BA", NSwitchType::kSimple, false },
    { L"BD", NSwitchType::kSimple, false },
    { L"T",  NSwitchType::kUnLimitedPostString, false, 1 },
    { L"Y",  NSwitchType::kSimple, false },
    { L"P",  NSwitchType::kUnLimitedPostString, false, 0 },
    { L"M",  NSwitchType::kUnLimitedPostString, true, 1 },
    { L"O",  NSwitchType::kUnLimitedPostString, false, 1 },
    { L"W",  NSwitchType::kUnLimitedPostString, false, 0 },
    { L"I",  NSwitchType::kUnLimitedPostString, true, kSomeCludePostStringMinSize},
    { L"X",  NSwitchType::kUnLimitedPostString, true, kSomeCludePostStringMinSize},
    { L"AI", NSwitchType::kUnLimitedPostString, true, kSomeCludePostStringMinSize},
    { L"AX", NSwitchType::kUnLimitedPostString, true, kSomeCludePostStringMinSize},
    { L"AN", NSwitchType::kSimple, false },
    { L"U",  NSwitchType::kUnLimitedPostString, true, 1},
    { L"V",  NSwitchType::kUnLimitedPostString, true, 1},
    { L"R",  NSwitchType::kPostChar, false, 0, 0, kRecursedPostCharSet },
    { L"SFX", NSwitchType::kUnLimitedPostString, false, 0 },
    { L"SI", NSwitchType::kUnLimitedPostString, false, 0 },
    { L"SO", NSwitchType::kSimple, false, 0 },
    { L"AO", NSwitchType::kPostChar, false, 1, 1, kOverwritePostCharSet},
    { L"SEML", NSwitchType::kUnLimitedPostString, false, 0},
    { L"AD",  NSwitchType::kSimple, false },
    { L"SLP", NSwitchType::kUnLimitedPostString, false, 0},
    { L"SCS", NSwitchType::kUnLimitedPostString, false, 0},
    { L"SLT", NSwitchType::kSimple, false },
    { L"SSW", NSwitchType::kSimple, false },
    { L"SSC", NSwitchType::kPostChar, false, 0, 0, L"-" }
  };

static const CCommandForm g_CommandForms[] = 
{
  { L"A", false },
  { L"U", false },
  { L"D", false },
  { L"T", false },
  { L"E", false },
  { L"X", false },
  { L"L", false },
  { L"B", false },
  { L"I", false }
};

static const int kNumCommandForms = sizeof(g_CommandForms) /  sizeof(g_CommandForms[0]);

static const wchar_t *kUniversalWildcard = L"*";
static const int kMinNonSwitchWords = 1;
static const int kCommandIndex = 0;

// ---------------------------
// exception messages

static const char *kUserErrorMessage  = "Incorrect command line";
static const char *kIncorrectListFile = "Incorrect item in listfile.\nCheck charset encoding and -scs switch.";
static const char *kIncorrectWildCardInListFile = "Incorrect wildcard in listfile";
static const char *kIncorrectWildCardInCommandLine  = "Incorrect wildcard in command line";
static const char *kTerminalOutError = "I won't write compressed data to a terminal";
static const char *kSameTerminalError = "I won't write data and program's messages to same terminal";

static void ThrowException(const char *errorMessage)
{
  throw CArchiveCommandLineException(errorMessage);
};

static void ThrowUserErrorException()
{
  ThrowException(kUserErrorMessage);
};

// ---------------------------

bool CArchiveCommand::IsFromExtractGroup() const
{
  switch(CommandType)
  {
    case NCommandType::kTest:
    case NCommandType::kExtract:
    case NCommandType::kFullExtract:
      return true;
    default:
      return false;
  }
}

NExtract::NPathMode::EEnum CArchiveCommand::GetPathMode() const
{
  switch(CommandType)
  {
    case NCommandType::kTest:
    case NCommandType::kFullExtract:
      return NExtract::NPathMode::kFullPathnames;
    default:
      return NExtract::NPathMode::kNoPathnames;
  }
}

bool CArchiveCommand::IsFromUpdateGroup() const
{
  return (CommandType == NCommandType::kAdd || 
    CommandType == NCommandType::kUpdate ||
    CommandType == NCommandType::kDelete);
}

static NRecursedType::EEnum GetRecursedTypeFromIndex(int index)
{
  switch (index)
  {
    case NRecursedPostCharIndex::kWildCardRecursionOnly: 
      return NRecursedType::kWildCardOnlyRecursed;
    case NRecursedPostCharIndex::kNoRecursion: 
      return NRecursedType::kNonRecursed;
    default:
      return NRecursedType::kRecursed;
  }
}

static bool ParseArchiveCommand(const UString &commandString, CArchiveCommand &command)
{
  UString commandStringUpper = commandString;
  commandStringUpper.MakeUpper();
  UString postString;
  int commandIndex = ParseCommand(kNumCommandForms, g_CommandForms, commandStringUpper, 
      postString) ;
  if (commandIndex < 0)
    return false;
  command.CommandType = (NCommandType::EEnum)commandIndex;
  return true;
}

// ------------------------------------------------------------------
// filenames functions

static bool AddNameToCensor(NWildcard::CCensor &wildcardCensor, 
    const UString &name, bool include, NRecursedType::EEnum type)
{
  bool isWildCard = DoesNameContainWildCard(name);
  bool recursed = false;

  switch (type)
  {
    case NRecursedType::kWildCardOnlyRecursed:
      recursed = isWildCard;
      break;
    case NRecursedType::kRecursed:
      recursed = true;
      break;
    case NRecursedType::kNonRecursed:
      recursed = false;
      break;
  }
  wildcardCensor.AddItem(include, name, recursed);
  return true;
}

static void AddToCensorFromListFile(NWildcard::CCensor &wildcardCensor, 
    LPCWSTR fileName, bool include, NRecursedType::EEnum type, UINT codePage)
{
  UStringVector names;
  if (!ReadNamesFromListFile(fileName, names, codePage))
    throw kIncorrectListFile;
  for (int i = 0; i < names.Size(); i++)
    if (!AddNameToCensor(wildcardCensor, names[i], include, type))
      throw kIncorrectWildCardInListFile;
}

static void AddCommandLineWildCardToCensr(NWildcard::CCensor &wildcardCensor, 
    const UString &name, bool include, NRecursedType::EEnum recursedType)
{
  if (!AddNameToCensor(wildcardCensor, name, include, recursedType))
    throw kIncorrectWildCardInCommandLine;
}

static void AddToCensorFromNonSwitchesStrings(
    int startIndex,
    NWildcard::CCensor &wildcardCensor, 
    const UStringVector &nonSwitchStrings, NRecursedType::EEnum type, 
    bool thereAreSwitchIncludes, UINT codePage)
{
  if(nonSwitchStrings.Size() == startIndex && (!thereAreSwitchIncludes)) 
    AddCommandLineWildCardToCensr(wildcardCensor, kUniversalWildcard, true, type);
  for(int i = startIndex; i < nonSwitchStrings.Size(); i++)
  {
    const UString &s = nonSwitchStrings[i];
    if (s[0] == kFileListID)
      AddToCensorFromListFile(wildcardCensor, s.Mid(1), true, type, codePage);
    else
      AddCommandLineWildCardToCensr(wildcardCensor, s, true, type);
  }
}

#ifdef _WIN32
static void ParseMapWithPaths(NWildcard::CCensor &wildcardCensor, 
    const UString &switchParam, bool include, 
    NRecursedType::EEnum commonRecursedType)
{
  int splitPos = switchParam.Find(L':');
  if (splitPos < 0)
    ThrowUserErrorException();
  UString mappingName = switchParam.Left(splitPos);
  
  UString switchParam2 = switchParam.Mid(splitPos + 1);
  splitPos = switchParam2.Find(L':');
  if (splitPos < 0)
    ThrowUserErrorException();
  
  UString mappingSize = switchParam2.Left(splitPos);
  UString eventName = switchParam2.Mid(splitPos + 1);
  
  UInt64 dataSize64 = ConvertStringToUInt64(mappingSize, NULL);
  UInt32 dataSize = (UInt32)dataSize64;
  {
    CFileMapping fileMapping;
    if (!fileMapping.Open(FILE_MAP_READ, false, GetSystemString(mappingName)))
      ThrowException("Can not open mapping");
    LPVOID data = fileMapping.MapViewOfFile(FILE_MAP_READ, 0, dataSize);
    if (data == NULL)
      ThrowException("MapViewOfFile error");
    try
    {
      const wchar_t *curData = (const wchar_t *)data;
      if (*curData != 0)
        ThrowException("Incorrect mapping data");
      UInt32 numChars = dataSize / sizeof(wchar_t);
      UString name;
      for (UInt32 i = 1; i < numChars; i++)