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/***************************************************************************
titleproxy.h - description
-------------------
begin : Nov 20 14:35:18 CEST 2003
copyright : (C) 2003 by Mark Kretschmann
email :
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef AMAROK_TITLEPROXY_H
#define AMAROK_TITLEPROXY_H
#include <kurl.h> //stack allocated
#include <tqobject.h>
#include <tqserversocket.h> //baseclass
#include <tqsocket.h> //stack allocated
class QString;
namespace TitleProxy
{
/**
* Proxy Concept:
* 1. Connect to streamserver
* 2. Listen on localhost, let aRts connect to proxyserver
* 3. Write GET request to streamserver, containing Icy-MetaData:1 token
* 4. Read MetaInt token from streamserver (==metadata offset)
*
* 5. Read stream data (mp3 + metadata) from streamserver
* 6. Filter out metadata, send to app
* 7. Write mp3 data to proxyserver
* 8. Goto 5
*
* Some info on the shoutcast metadata protocol can be found at:
* @see http://www.smackfu.com/stuff/programming/shoutcast.html
*
* @short A proxy server for extracting metadata from Shoutcast streams.
*/
class Proxy : public QObject
{
Q_OBJECT
public:
Proxy( KURL url );
~Proxy();
bool initSuccess() { return m_initSuccess; }
KURL proxyUrl();
signals:
void metaData(
const TQString &streamName,
const TQString &streamGenre,
const TQString &streamUrl,
const TQString &streamBitrate,
const TQString &trackTitle,
const TQString &trackUrl);
void proxyError();
private slots:
void accept( int socket );
void connectToHost();
void sendRequest();
void readRemote();
void connectError();
private:
bool processHeader( Q_LONG &index, Q_LONG bytesRead );
void transmitData( const TQString &data );
void error();
TQString extractStr( const TQString &str, const TQString &key );
//ATTRIBUTES:
KURL m_url;
int m_streamingMode;
bool m_initSuccess;
bool m_connectSuccess;
int m_metaInt;
TQString m_bitRate;
int m_byteCount;
uint m_metaLen;
TQString m_metaData;
bool m_headerFinished;
TQString m_headerStr;
int m_usedPort;
TQString m_lastMetadata;
bool m_icyMode;
TQString m_streamName;
TQString m_streamGenre;
TQString m_streamUrl;
char *m_pBuf;
TQSocket m_sockRemote;
TQSocket m_sockProxy;
};
class Server : public QServerSocket
{
Q_OBJECT
public:
Server( Q_UINT16 port, TQObject* parent )
: TQServerSocket( port, 1, parent, "TitleProxyServer" ) {};
signals:
void connected( int socket );
private:
void newConnection( int socket ) { emit connected( socket ); }
};
} //namespace TitleProxy
#endif /*AMAROK_TITLEPROXY_H*/
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