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gabneo

Registriert seit: 15. Okt 2006
Ort: Deutsche Toskana :)
93 Beiträge
 
Delphi 10.2 Tokyo Professional
 
#6

AW: TFilestream in Schleife funktioniert nur einmalig

  Alt 2. Aug 2016, 16:26
Reportmemoryleaks ist gecheckt und es gibt keine Lecks.
Dasselbe Problem taucht auch auf wenn man mit idHTTP auf einer Form einen Responsestream über .Post mit angibt.

Hier ist die Unit...

Delphi-Quellcode:
unit httpThread;

interface

uses
  Classes, SysUtils, Dialogs, Forms, Controls, ShellAPI, Windows,
  IdComponent, IdTCPConnection, IdTCPClient, IdHTTP, IdURI, IdCookieManager,
  IdIOHandler, IdIOHandlerSocket, IdIOHandlerStack, IdSSL, IdSSLOpenSSL, IdCoder,
  xmldom, XMLIntf, msxmldom, XMLDoc;

type
  http = class(TThread)
  private
    { Private-Deklarationen }
    fhttp: TIdHttp;
    fUser, fPass, fHardwarekennung, fURL, fcfg, fsrc, fsalt: string;
  protected
    procedure Execute; override;
  public
    constructor Create(User, Pass, Hardwarekennung, URL, cfg, src, salt:widestring);
  end;

implementation

uses main, downloadForm, languageStrings, passwordForm, functions, debug;

constructor http.Create(User, Pass, Hardwarekennung, URL, cfg, src, salt:widestring);
begin
  inherited Create(False);
  FreeOnTerminate := true;
  fUser := User;
  fPass := Pass;
  fHardwarekennung := Hardwarekennung;
  fURL := url;
  fcfg := cfg;
  fsrc := src;
  fsalt := salt;
  Self.Execute;
end;

procedure http.Execute;
var s,sFilename,pfad,s1:string; nlist,flist:iXMLNodeList; cfgdata: tstringlist; PHPXML: IXMLDOCUMENT; sFile: TStream; fparams, currentList:tstringlist; i:integer; Handle1:THandle; fileStream:THandleStream;
begin
  phpxml := NewXMLDocument;
  fhttp := TIdHTTP.Create(nil);
  try
    fhttp.HandleRedirects := True;
    fhttp.AllowCookies := True;
    fhttp.ReadTimeout := 15000; //Sonst Timeouts auf > Windows 8 BSystemen
    fhttp.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(fhttp);

    fparams:=tstringlist.Create;
    fparams.Add('RPC=login');
    fparams.Add('username='+fUser);
    fparams.Add('password='+fPass);
    fparams.Add('hardware='+fHardwarekennung);
    s := fhttp.Post(TIdURI.URLEncode(fURL), fparams);

    try PHPXML.LoadFromXML(s); phpxml.Active := true; except end;

    if not PHPXML.IsEmptyDoc then
    begin
      if (phpxml.DocumentElement.HasChildNodes) then
        begin
          nlist := phpxml.DocumentElement.ChildNodes;
          if (nlist.FindNode('problem') <> nil) then
          begin
            if (((nlist.FindNode('blocked') <> nil)) and (nlist.FindNode('blocked').Text>'0000-00-00 00:00:00')) or (((nlist.FindNode('removed') <> nil)) and (nlist.FindNode('removed').Text>'0000-00-00 00:00:00')) then begin try DeleteFile(PChar(fcfg)); except end; Application.Terminate; end;
             Queue( procedure begin showmessage(language.Label1.Caption) end ); //'Username or password not valid. Please check your input.'
            exit;
          end;
          //setIniFile;

          //Neues Password TODO
          //if (((nlist.FindNode('newpassword') <> nil)) and (nlist.FindNode('newpassword').Text='1')) then Form12.ShowModal;

          //XML Verschlüsseln und Speichern
          try DeleteFile(PChar(fcfg)) except end;
          try Queue( procedure begin Form1.xml.LoadFromXML(Form1.IdDecoderMIME1.DecodeString(nlist.FindNode('cfg').Text, SysUtils.TUTF8Encoding.UTF8));
              cfgdata := tstringlist.Create; try cfgdata.Text := functions.Encrypt(Form1.xml.XML.Text, fsalt + fUser + fPass + fHardwarekennung); cfgdata.SaveToFile(fcfg); finally cfgdata.Free; end; end );
          except end;

          //APPLICATION UPDATE
          //Versionscheck und ggf. Download der aktuellen Version
          if (nlist.FindNode('version') <> nil) then if (phpxml.DocumentElement.ChildNodes.FindNode('version').Text <> GetVersion) then if (MessageDlg(language.Label4.caption + phpxml.DocumentElement.ChildNodes.FindNode('version').Text + '!' + #13#10 + language.label5.caption, mtConfirmation, mbYesNo, 0) = mrYes) then
          begin
            //download.Show;
            sFilename := extractfilepath(paramstr(0)) + 'update.exe';
            try deletefile(PChar(sFilename)) except; end;
            sFile := TFileStream.Create(sFilename, fmCreate);
            try
              fparams.text := 'RPC=update';
              fhttp.Post(TIdURI.URLEncode(fURL), fparams, sFile);
            finally
              sFile.Free;
            end;
            ShellExecute(handle,'open',PChar(sFilename), PChar(''),'',SW_SHOWNORMAL); ///SP- /VERYSILENT
            application.Terminate;
          end;

          //CONTENT UPDATE
          currentList := tstringlist.Create;
          try
            currentList.Sorted:=true;
            functions.FindAllFilesUnix(currentList,fsrc,'*',true,false,true,true); //Dateiliste erstellen

            pfad:=extractfilepath(paramstr(0));
            s1 := phpxml.DocumentElement.ChildNodes.FindNode('filelist').XML;

            for i := currentList.Count-1 downto 0 do
            begin
              s := copy(currentList[i], length(fsrc) + 1);
              s := copy(s, 0, pos(#255, s)-1);
              if (pos('\', s) < 1) and ((extractfileext(s) = '') or (lowercase(extractfileext(s)) = '.xml')) then continue; //APPDATEN: Übergehen - Dateien ohne Endung, Dateien mit Endung XML

              s := copy(currentList[i], length(pfad) + 1);
              s := copy(s, 0, pos(#255, s)-1);
              if (pos('>' + s + '</file>', s1) < 1) then Deletefile(PChar(s)); //löschen
            end;

            flist := phpxml.DocumentElement.ChildNodes.FindNode('filelist').ChildNodes;

            Queue ( procedure begin Form2.log('flist.count: ' + inttostr(flist.Count)); end);
            for i := flist.Count-1 downto 0 do
            begin
              if (pos(flist[i].NodeValue + #255 + flist[i].Attributes['timestamp'], currentList.Text) > 0) then continue; //Datumsvergleich
              Queue ( procedure begin Form2.log('entry ' + inttostr(i) + ': ' + flist[i].NodeValue + #255 + flist[i].Attributes['timestamp']); end);
              //Download
              sFilename := extractfilepath(paramstr(0)) + flist[i].NodeValue;
              sFile := TFileStream.Create(sFilename, fmCreate);
              //Handle1 := CreateFile(PChar(sFilename), GENERIC_WRITE, FILE_SHARE_WRITE, nil, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
              //fileStream := THandleStream.Create(Handle1);
              try
                fparams.Text := 'RPC=download';
                fparams.Add('file=' + flist[i].NodeValue);
                fhttp.Post(TIdURI.URLEncode(fURL), fparams, sFile); //sFile fileStream
              finally
                //fhttp.Disconnect;
                //fhttp.Response.Clear;
                sFile.Free;
                //fileStream.Free;
                //CloseHandle(Handle1);
                SetFileDate(sFilename, UnixToDateTime(flist[i].Attributes['timestamp']));
              end;
            end;
          finally
            currentList.Free;
          end;

        //Applikation laden
      end;
    end else Queue( procedure begin showmessage(language.Label2.Caption); {problem connecting server} {TODO Offline Modus starten}  end );
  finally
    try fparams.text := 'RPC=logout'; fhttp.Post(TIdURI.URLEncode(fURL), fparams); except end;
    fhttp.Free;
    fparams.Free;
  end;
  Self.Terminate;
end;

end.
LG
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