C++ xfile::CFile类代码示例

// This test will fail until ActionDeleteFolder has a proper implementation
TEST(TestFileOperationJob, ActionDeleteFolder)
{
    XFILE::CFile *tmpfile;
    CStdString tmpfilepath, destpath;
    CFileItemList items;
    CFileOperationJob job;

    ASSERT_TRUE((tmpfile = XBMC_CREATETEMPFILE("")));
    tmpfilepath = XBMC_TEMPFILEPATH(tmpfile);
    tmpfile->Close();

    destpath = tmpfilepath;
    destpath += ".deletefolder";
    ASSERT_FALSE(XFILE::CFile::Exists(destpath));

    CFileItemPtr item(new CFileItem(destpath));
    item->SetPath(destpath);
    item->m_bIsFolder = true;
    item->Select(true);
    items.Add(item);

    job.SetFileOperation(CFileOperationJob::ActionCreateFolder, items, destpath);
    EXPECT_EQ(CFileOperationJob::ActionCreateFolder, job.GetAction());

    EXPECT_TRUE(job.DoWork());
    EXPECT_TRUE(XFILE::CDirectory::Exists(destpath));

    job.SetFileOperation(CFileOperationJob::ActionDeleteFolder, items, destpath);
    EXPECT_EQ(CFileOperationJob::ActionDeleteFolder, job.GetAction());

    EXPECT_TRUE(job.DoWork());
    EXPECT_FALSE(XFILE::CDirectory::Exists(destpath));

    EXPECT_TRUE(XBMC_DELETETEMPFILE(tmpfile));
}

void CKaraokeLyricsText::saveLyrics()
{
  XFILE::CFile file;

  CStdString out;

  for ( unsigned int i = 0; i < m_lyrics.size(); i++ )
  {
    CStdString timing;
    timing.Format( "%02d:%02d.%d", m_lyrics[i].timing / 600, (m_lyrics[i].timing % 600) / 10, (m_lyrics[i].timing % 10) );

    if ( (m_lyrics[i].flags & LYRICS_NEW_PARAGRAPH) != 0 )
      out += "\n\n";

    if ( (m_lyrics[i].flags & LYRICS_NEW_LINE) != 0 )
      out += "\n";

    out += "[" + timing + "]" + m_lyrics[i].text;
  }

  out += "\n";

  if ( !file.OpenForWrite( "special://temp/tmp.lrc", true ) )
    return;

  file.Write( out, out.size() );
}

HRESULT CD3DEffect::Open(D3D_INCLUDE_TYPE IncludeType, LPCSTR pFileName, LPCVOID pParentData, LPCVOID* ppData, UINT* pBytes)
{
  XFILE::CFile includeFile;

  std::string fileName("special://xbmc/system/shaders/");
  fileName.append(pFileName);

  if (!includeFile.Open(fileName))
  {
    CLog::Log(LOGERROR, "%s: Could not open 3DLUT file: %s", __FUNCTION__, fileName.c_str());
    return E_FAIL;
  }

  int64_t length = includeFile.GetLength();
  void *pData = malloc(length);
  if (includeFile.Read(pData, length) != length)
  {
    free(pData);
    return E_FAIL;
  }
  *ppData = pData;
  *pBytes = length;

  return S_OK;
}

bool CXBMCTinyXML::LoadFile(const std::string& _filename, TiXmlEncoding encoding)
{
  value = _filename.c_str();

  XFILE::CFile file;
  XFILE::auto_buffer buffer;

  if (file.LoadFile(value, buffer) <= 0)
  {
    SetError(TIXML_ERROR_OPENING_FILE, NULL, NULL, TIXML_ENCODING_UNKNOWN);
    return false;
  }

  // Delete the existing data:
  Clear();
  location.Clear();

  std::string data(buffer.get(), buffer.length());
  buffer.clear(); // free memory early

  if (encoding == TIXML_ENCODING_UNKNOWN)
    Parse(data, file.GetContentCharset());
  else
    Parse(data, encoding);

  if (Error())
    return false;
  return true;
}

bool CBaseTexture::LoadFromFileInternal(const std::string& texturePath, unsigned int maxWidth, unsigned int maxHeight, bool autoRotate, bool requirePixels, const std::string& strMimeType)
{
  if (URIUtils::HasExtension(texturePath, ".dds"))
  { // special case for DDS images
    CDDSImage image;
    if (image.ReadFile(texturePath))
    {
      Update(image.GetWidth(), image.GetHeight(), 0, image.GetFormat(), image.GetData(), false);
      return true;
    }
    return false;
  }

  unsigned int width = maxWidth ? std::min(maxWidth, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();
  unsigned int height = maxHeight ? std::min(maxHeight, g_Windowing.GetMaxTextureSize()) : g_Windowing.GetMaxTextureSize();

  // Read image into memory to use our vfs
  XFILE::CFile file;
  XFILE::auto_buffer buf;

  if (file.LoadFile(texturePath, buf) <= 0)
    return false;

  CURL url(texturePath);
  // make sure resource:// paths are properly resolved
  if (url.IsProtocol("resource"))
  {
    std::string translatedPath;
    if (XFILE::CResourceFile::TranslatePath(url, translatedPath))
      url.Parse(translatedPath);
  }

  // handle xbt:// paths differently because it allows loading the texture directly from memory
  if (url.IsProtocol("xbt"))
  {
    XFILE::CXbtFile xbtFile;
    if (!xbtFile.Open(url))
      return false;

    return LoadFromMemory(xbtFile.GetImageWidth(), xbtFile.GetImageHeight(), 0, xbtFile.GetImageFormat(),
                          xbtFile.HasImageAlpha(), reinterpret_cast<unsigned char*>(buf.get()));
  }

  IImage* pImage;

  if(strMimeType.empty())
    pImage = ImageFactory::CreateLoader(texturePath);
  else
    pImage = ImageFactory::CreateLoaderFromMimeType(strMimeType);

  if (!LoadIImage(pImage, (unsigned char *)buf.get(), buf.size(), width, height, autoRotate))
  {
    CLog::Log(LOGDEBUG, "%s - Load of %s failed.", __FUNCTION__, texturePath.c_str());
    delete pImage;
    return false;
  }
  delete pImage;

  return true;
}

bool Gif::IsAnimated(const char* file)
{
  if (!m_dll.IsLoaded())
    return false;

  if (m_isAnimated < 0)
  {
    m_filename = file;
    m_isAnimated = 0;

    GifFileType* gif = nullptr;
    XFILE::CFile gifFile;

    if (!gifFile.Open(file) || !Open(gif, &gifFile, ReadFromVfs))
      return false;

    if (gif)
    {
      if (Slurp(gif) && gif->ImageCount > 1)
        m_isAnimated = 1;

      Close(gif);
      gifFile.Close();
    }
  }
  return m_isAnimated > 0;
}

bool COMXImage::CreateThumbnailFromSurface(unsigned char* buffer, unsigned int width, unsigned int height, 
    unsigned int format, unsigned int pitch, const CStdString& destFile)
{
  if(format != XB_FMT_A8R8G8B8 || !buffer) {
    CLog::Log(LOGDEBUG, "%s::%s : %s failed format=0x%x\n", CLASSNAME, __func__, destFile.c_str(), format);
    return false;
  }

  if(!Encode(buffer, height * pitch, width, height, pitch)) {
    CLog::Log(LOGDEBUG, "%s::%s : %s encode failed\n", CLASSNAME, __func__, destFile.c_str());
    return false;
  }

  XFILE::CFile file;
  if (file.OpenForWrite(destFile, true))
  {
    CLog::Log(LOGDEBUG, "%s::%s : %s width %d height %d\n", CLASSNAME, __func__, destFile.c_str(), width, height);

    file.Write(GetEncodedData(), GetEncodedSize());
    file.Close();
    return true;
  }

  return false;
}

bool CJpegIO::Open(const CStdString &texturePath, unsigned int minx, unsigned int miny, bool read)
{
  m_texturePath = texturePath;
  unsigned int imgsize = 0;

  XFILE::CFile file;
  if (file.Open(m_texturePath.c_str(), 0))
  {
    imgsize = (unsigned int)file.GetLength();
    m_inputBuff = new unsigned char[imgsize];
    m_inputBuffSize = file.Read(m_inputBuff, imgsize);
    file.Close();

    if ((imgsize != m_inputBuffSize) || (m_inputBuffSize == 0))
      return false;
  }
  else
    return false;

  if (!read)
    return true;

  if (Read(m_inputBuff, m_inputBuffSize, minx, miny))
    return true;
  return false;
}

//========================================================================
int CFileURLProtocol::Open(URLContext *h, const char *filename, int flags)
{
  if (flags != URL_RDONLY)
  {
    CLog::Log(LOGDEBUG, "CFileURLProtocol::Open: Only read-only is supported");
    return -EINVAL;
  }

  CStdString url = filename;
  if (url.Left(strlen("xb-http://")).Equals("xb-http://"))
  {
    url = url.Right(url.size() - strlen("xb-"));
  }
  CLog::Log(LOGDEBUG, "CFileURLProtocol::Open filename2(%s)", url.c_str());
  // open the file, always in read mode, calc bitrate
  unsigned int cflags = READ_BITRATE;
  XFILE::CFile *cfile = new XFILE::CFile();

  if (CFileItem(url, false).IsInternetStream())
    cflags |= READ_CACHED;

  // open file in binary mode
  if (!cfile->Open(url, cflags))
  {
    delete cfile;
    return -EIO;
  }

  h->priv_data = (void *)cfile;

  return 0;
}

bool CPODocument::LoadFile(const std::string &pofilename)
{
  CURL poFileUrl(pofilename);
  if (!XFILE::CFile::Exists(poFileUrl))
    return false;

  XFILE::CFile file;
  XFILE::auto_buffer buf;
  if (file.LoadFile(poFileUrl, buf) < 18) // at least a size of a minimalistic header
  {
    CLog::Log(LOGERROR, "%s: can't load file \"%s\" or file is too small", __FUNCTION__,  pofilename.c_str());
    return false;
  }
  
  m_strBuffer = '\n';
  m_strBuffer.append(buf.get(), buf.size());
  buf.clear();

  ConvertLineEnds(pofilename);

  // we make sure, to have an LF at the end of buffer
  if (*m_strBuffer.rbegin() != '\n')
  {
    m_strBuffer += "\n";
  }

  m_POfilelength = m_strBuffer.size();

  if (GetNextEntry() && m_Entry.Type == MSGID_FOUND)
    return true;

  CLog::Log(LOGERROR, "POParser: unable to read PO file header from file: %s", pofilename.c_str());
  return false;
}

bool CPicture::CreateThumbnailFromSurface(const unsigned char *buffer, int width, int height, int stride, const std::string &thumbFile)
{
  CLog::Log(LOGDEBUG, "cached image '%s' size %dx%d", CURL::GetRedacted(thumbFile).c_str(), width, height);
  if (URIUtils::HasExtension(thumbFile, ".jpg"))
  {
#if defined(HAS_OMXPLAYER)
    if (COMXImage::CreateThumbnailFromSurface((BYTE *)buffer, width, height, XB_FMT_A8R8G8B8, stride, thumbFile.c_str()))
      return true;
#endif
  }

  unsigned char *thumb = NULL;
  unsigned int thumbsize=0;
  IImage* pImage = ImageFactory::CreateLoader(thumbFile);
  if(pImage == NULL || !pImage->CreateThumbnailFromSurface((BYTE *)buffer, width, height, XB_FMT_A8R8G8B8, stride, thumbFile.c_str(), thumb, thumbsize))
  {
    CLog::Log(LOGERROR, "Failed to CreateThumbnailFromSurface for %s", CURL::GetRedacted(thumbFile).c_str());
    delete pImage;
    return false;
  }

  XFILE::CFile file;
  const bool ret = file.OpenForWrite(thumbFile, true) && file.Write(thumb, thumbsize) == thumbsize;
  pImage->ReleaseThumbnailBuffer();
  delete pImage;

  return ret;
}

bool CCurlFile::Download(const CStdString& strURL, const CStdString& strFileName, LPDWORD pdwSize)
{
  CLog::Log(LOGINFO, "Download: %s->%s", strURL.c_str(), strFileName.c_str());

  CStdString strData;
  if (!Get(strURL, strData))
    return false;

  XFILE::CFile file;
  if (!file.OpenForWrite(strFileName, true))
  {
    CLog::Log(LOGERROR, "Unable to open file %s: %u",
    strFileName.c_str(), GetLastError());
    return false;
  }
  if (strData.size())
    file.Write(strData.c_str(), strData.size());
  file.Close();

  if (pdwSize != NULL)
  {
    *pdwSize = strData.size();
  }

  return true;
}

bool CKaraokeLyricsTextKAR::Load()
{
  XFILE::CFile file;
  bool succeed = true;
  m_reportedInvalidVarField = false;

  // Clear the lyrics array
  clearLyrics();

  if (file.LoadFile(m_midiFile, m_midiData) <= 0)
    return false;

  file.Close();

  // Parse MIDI
  try
  {
    parseMIDI();
  }
  catch ( const char * p )
  {
    CLog::Log( LOGERROR, "KAR lyrics loader: cannot load file: %s", p );
    succeed = false;
  }

  m_midiData.clear();
  return succeed;
}

TEST_F(TestRegExpLog, DumpOvector)
{
  CRegExp regex;
  CStdString logfile, logstring;
  char buf[100];
  unsigned int bytesread;
  XFILE::CFile file;

  logfile = CSpecialProtocol::TranslatePath("special://temp/") + "xbmc.log";
  EXPECT_TRUE(CLog::Init(CSpecialProtocol::TranslatePath("special://temp/")));
  EXPECT_TRUE(XFILE::CFile::Exists(logfile));

  EXPECT_TRUE(regex.RegComp("^(?<first>Test)\\s*(?<second>.*)\\."));
  EXPECT_EQ(0, regex.RegFind("Test string."));
  regex.DumpOvector(LOGDEBUG);
  CLog::Close();

  EXPECT_TRUE(file.Open(logfile));
  while ((bytesread = file.Read(buf, sizeof(buf) - 1)) > 0)
  {
    buf[bytesread] = '\0';
    logstring.append(buf);
  }
  file.Close();
  EXPECT_FALSE(logstring.empty());

  EXPECT_STREQ("\xEF\xBB\xBF", logstring.substr(0, 3).c_str());

  EXPECT_TRUE(regex.RegComp(".*DEBUG: regexp ovector=\\{\\[0,12\\],\\[0,4\\],"
                            "\\[5,11\\]\\}.*"));
  EXPECT_GE(regex.RegFind(logstring), 0);

  EXPECT_TRUE(XFILE::CFile::Delete(logfile));
}

TEST(TestFileUtils, DeleteItemString)
{
  XFILE::CFile *tmpfile;

  ASSERT_NE(nullptr, (tmpfile = XBMC_CREATETEMPFILE("")));
  tmpfile->Close();  //Close tmpfile before we try to delete it
  EXPECT_TRUE(CFileUtils::DeleteItem(XBMC_TEMPFILEPATH(tmpfile)));
}