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/*
 * Copyright (C) 2001-2012 Jacek Sieka, arnetheduck on gmail point com
 *
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#pragma once

#include "BufferedSocket.h"
#include "noexcept.h"

namespace dcpp {

class HttpConnection;

class HttpConnectionListener {
public:
    virtual ~HttpConnectionListener() { }
    template<int I> struct X { enum { TYPE = I }; };

    typedef X<0> Data;
    typedef X<1> Failed;
    typedef X<2> Complete;
    typedef X<3> Redirected;
    typedef X<4> TypeNormal;
    typedef X<5> TypeBZ2;
    typedef X<6> Retried;

    virtual void on(Data, HttpConnection*, const uint8_t*, size_t) noexcept =0;
    virtual void on(Failed, HttpConnection*, const string&) noexcept { }
    virtual void on(Complete, HttpConnection*, const string&, bool) noexcept { }
    virtual void on(Redirected, HttpConnection*, const string&) noexcept { }
    virtual void on(TypeNormal, HttpConnection*) noexcept { }
    virtual void on(TypeBZ2, HttpConnection*) noexcept { }
    virtual void on(Retried, HttpConnection*, const bool) noexcept { }
};

class HttpConnection : BufferedSocketListener, public Speaker<HttpConnectionListener>
{
public:
    void downloadFile(const string& aUrl);
    HttpConnection() : ok(false), port(80), size(-1), moved302(false), coralizeState(CST_DEFAULT), socket(NULL) { }
    virtual ~HttpConnection() noexcept {
        if(socket) {
            socket->removeListener(this);
            BufferedSocket::putSocket(socket);
        }
    }

    enum CoralizeStates {CST_DEFAULT, CST_CONNECTED, CST_NOCORALIZE};
    void setCoralizeState(CoralizeStates _cor) { coralizeState = _cor; }

private:

    HttpConnection(const HttpConnection&);
    HttpConnection& operator=(const HttpConnection&);

    string currentUrl;
    string file;
    string server;
    bool ok;
    uint16_t port;
    int64_t size;
    bool moved302;

    CoralizeStates coralizeState;

    BufferedSocket* socket;

    // BufferedSocketListener
    virtual void on(Connected) noexcept;
    virtual void on(Line, const string&) noexcept;
    virtual void on(Data, uint8_t*, size_t) noexcept;
    virtual void on(ModeChange) noexcept;
    virtual void on(Failed, const string&) noexcept;

    void onConnected();
    void onLine(const string& aLine);

};

} // namespace dcpp