На основе примера "Learner Proxy", сделал проксю под себя, все нормально до тех пор, пока известен размер получаемых данных, как только сервер отправляет данные, которые формируется динамически, то все, пусто.. как быть?
| Код |
Server.CreateSocket;
Server.Connect('127.0.0.1', '8080');
FContentType := '';
FContentLength := -1;
Headers.Clear;
repeat
s := Client.RecvString(TimeOut);
su := UpperCase(s);
Headers.Add(s);
Server.SendString(s + CRLF);
if (Pos('CONTENT-LENGTH:', su) <> 0)
then FContentLength := StrToIntDef(SeparateRight(su, ' '), -1);
if (Pos('CONTENT-TYPE:', su) <> 0)
then FContentType := SeparateRight(s, ' ');
until (s = '') or (Client.LastError <> 0);
WriteHeaders(0);
if (FContentLength <> -1) then
begin
Stream.Clear;
Stream.SetSize(FContentLength);
Client.RecvBufferEx(Stream.Memory, FContentLength, TimeOut);
Stream.Seek(0, soFromBeginning);
Server.SendBuffer(Stream.Memory, FContentLength);
Stream.Seek(0, soFromBeginning);
WriteContent(0);
end;
// Read From Server
Chunked := False;
FContentType := '';
FContentLength := -1;
Headers.Clear;
if Server.CanRead(TimeOut) then
begin
repeat
s := Server.RecvString(TimeOut);
Headers.Add(s);
Client.SendString(s + CRLF);
su := UpperCase(s);
if (Pos('CONTENT-LENGTH:', su) <> 0)
then FContentLength := StrToIntDef(SeparateRight(su, ' '), -1);
if (Pos('CONTENT-TYPE:', su) <> 0)
then FContentType := SeparateRight(s, ' ');
if (su = 'TRANSFER-ENCODING: CHUNKED')
then Chunked := True;
until (s = '') or (Server.LastError <> 0);
WriteHeaders(1);
if Chunked then
begin
repeat
s := Server.RecvString(TimeOut);
Client.SendString(s + CRLF);
ToWriteLn := s;
DoWriteLn(1);
if (s = '0') then Break;
FContentLength := StrToInt('$' + Trim(s)); // Trim. Trim. Trim. Why they send trailing spaces?
Stream.Clear;
Stream.SetSize(FContentLength);
Server.RecvBufferEx(Stream.Memory, FContentLength, TimeOut);
Stream.Seek(0, soFromBeginning);
Client.SendBuffer(Stream.Memory, FContentLength);
Stream.Seek(0, soFromBeginning);
WriteContent(1);
s := Server.RecvString(TimeOut);
Client.SendString(s + CRLF);
until False;
end else
begin
if (FContentLength <> -1) then
begin
Stream.Clear;
Stream.SetSize(FContentLength);
Server.RecvBufferEx(Stream.Memory, FContentLength, TimeOut);
Stream.Seek(0, soFromBeginning);
Client.SendBuffer(Stream.Memory, FContentLength);
Stream.Seek(0, soFromBeginning);
WriteContent(1);
end;
end;
end else
begin
Client.SendString('HTTP/1.1 200 OK' + CRLF);
Client.SendString('Content-Type: text/html' + CRLF);
Client.SendString('Transfer-Encoding: chunked' + CRLF);
Client.SendString('Connection: close' + CRLF);
Client.SendString(CRLF);
s := '<html><body>Response Error from HTTP Server (Timed Out))</body></html>';
Client.SendString(IntToHex(Length(s), 2) + CRLF);
Client.SendString(s + CRLF);
end;
Synchronize(LogAll);
Client.CloseSocket;
Server.CloseSocket;
|
особенно это касается строчки if (FContentLength <> -1) then |