C++ CFileCurl::Read方法代码示例

bool CDirectoryTuxBox::GetDirectory(const CStdString& strPath, CFileItemList &items)
{
  // so we know that we have enigma2
  static bool enigma2 = false;
  // Detect and delete slash at end
  CStdString strRoot = strPath;
  if (CUtil::HasSlashAtEnd(strRoot))
  strRoot.Delete(strRoot.size() - 1);

  //Get the request strings
  CStdString strBQRequest;
  CStdString strXMLRootString;
  CStdString strXMLChildString;
  if(!GetRootAndChildString(strRoot, strBQRequest, strXMLRootString, strXMLChildString))
    return false;

  //Set url Protocol
  CURL url(strRoot);
  CStdString strFilter;
  CStdString protocol = url.GetProtocol();
  CStdString strOptions = url.GetOptions();
  url.SetProtocol("http");
  bool bIsBouquet=false;

  int ipoint = strOptions.Find("?path=");
  if (ipoint >=0)
  {
    // send Zap!
    return g_tuxbox.ZapToUrl(url, strOptions, ipoint);
  }
  else
  {
    ipoint = strOptions.Find("&reference=");
    if (ipoint >=0 || enigma2)
    {
      //List reference
      strFilter = strOptions.Right((strOptions.size()-(ipoint+11)));
      bIsBouquet = false; //On Empty is Bouquet
      if (enigma2)
      {
        CStdString strPort;
        strPort.Format(":%i",url.GetPort());
        if (strRoot.Right(strPort.GetLength()) != strPort) // If not root dir, enable Channels
          strFilter = "e2"; // Disable Bouquets for Enigma2

        GetRootAndChildStringEnigma2(strBQRequest, strXMLRootString, strXMLChildString);
        url.SetOptions("");
        url.SetFileName(strBQRequest);
      }
    }
  }
  if(strFilter.IsEmpty())
  {
    url.SetOptions(strBQRequest);
    bIsBouquet = true;
  }
  //Open
  CFileCurl http;
  int iTryConnect = 0;
  int iWaitTimer = 20;
  bool result = false;

  while (iTryConnect < 4)
  {
    http.SetTimeout(iWaitTimer);
    if(http.Open(url))
    {
      //We are connected!
      iTryConnect = 4;

      // restore protocol
      url.SetProtocol(protocol);

      int size_read = 0;
      int size_total = (int)http.GetLength();
      int data_size = 0;
      CStdString data;
      data.reserve(size_total);

      // read response from server into string buffer
      char buffer[16384];
      while ((size_read = http.Read(buffer, sizeof(buffer)-1)) > 0)
      {
        buffer[size_read] = 0;
        data += buffer;
        data_size += size_read;
      }
      http.Close();

      // parse returned xml
      TiXmlDocument doc;
      data.Replace("></",">-</"); //FILL EMPTY ELEMENTS WITH "-"!
      doc.Parse(data.c_str());
      TiXmlElement *root = doc.RootElement();
      if(root == NULL)
      {
        CLog::Log(LOGERROR, "%s - Unable to parse xml", __FUNCTION__);
        CLog::Log(LOGERROR, "%s - Sample follows...\n%s", __FUNCTION__, data.c_str());
        return false;
      }
//.........这里部分代码省略.........

bool CShoutcastDirectory::GetDirectory(const CStdString& strPath, CFileItemList &items)
{

  CStdString strRoot = strPath;
  if (CUtil::HasSlashAtEnd(strRoot))
    strRoot.Delete(strRoot.size() - 1);

  /* for old users wich doesn't have the full url */
  if( strRoot.Equals("shout://www.shoutcast.com") )
    strRoot = "shout://www.shoutcast.com/sbin/newxml.phtml";

  if (g_directoryCache.GetDirectory(strRoot, items))
    return true;

  CGUIDialogProgress* dlgProgress = (CGUIDialogProgress*)m_gWindowManager.GetWindow(WINDOW_DIALOG_PROGRESS);
  if (dlgProgress)
  {
    dlgProgress->ShowProgressBar(false);
    dlgProgress->SetHeading(260);
    dlgProgress->SetLine(0, 14003);
    dlgProgress->SetLine(1, "");
    dlgProgress->SetLine(2, "");
    dlgProgress->StartModal();
  }

  CURL url(strRoot);
  CStdString protocol = url.GetProtocol();
  url.SetProtocol("http");

  CFileCurl http;

  //CURL doesn't seem to understand that data is encoded.. odd
  // opening as text for now
  //http.SetContentEncoding("deflate");

  if( !http.Open(url, false) ) 
  {
    CLog::Log(LOGERROR, "%s - Unable to get shoutcast dir", __FUNCTION__);
    if (dlgProgress) dlgProgress->Close();
    return false;
  }

  /* restore protocol */
  url.SetProtocol(protocol);

  CStdString content = http.GetContent();
  if( !(content.Equals("text/html") || content.Equals("text/xml") 
	  || content.Equals("text/html;charset=utf-8") || content.Equals("text/xml;charset=utf-8") ))
  {
    CLog::Log(LOGERROR, "%s - Invalid content type %s", __FUNCTION__, content.c_str());
    if (dlgProgress) dlgProgress->Close();
    return false;
  }
  
  
  int size_read = 0;  
  int size_total = (int)http.GetLength();
  int data_size = 0;

  CStdString data;
  data.reserve(size_total);
  
  /* read response from server into string buffer */
  char buffer[16384];
  while( (size_read = http.Read(buffer, sizeof(buffer)-1)) > 0 )
  {
    buffer[size_read] = 0;
    data += buffer;
    data_size += size_read;

    dlgProgress->Progress();

    if (dlgProgress->IsCanceled())
    {
      dlgProgress->Close();
      return false;
    }
  }

  /* parse returned xml */
  TiXmlDocument doc;
  doc.Parse(data.c_str());

  TiXmlElement *root = doc.RootElement();
  if(root == NULL)
  {
    CLog::Log(LOGERROR, "%s - Unable to parse xml", __FUNCTION__);
    CLog::Log(LOGDEBUG, "%s - Sample follows...\n%s", __FUNCTION__, data.c_str());

    dlgProgress->Close();
    return false;
  }

  /* clear data to keep memusage down, not needed anymore */
  data.Empty();

  bool result = false;
  if( strcmp(root->Value(), "genrelist") == 0 )
    result = ParseGenres(root, items, url);
  else if( strcmp(root->Value(), "stationlist") == 0 )
//.........这里部分代码省略.........