/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsFtpProtocolHandler_h__

#define nsFtpProtocolHandler_h__

#include "nsFtpControlConnection.h"

#include "nsIProxiedProtocolHandler.h"

#include "nsTArray.h"

#include "nsITimer.h"

#include "nsIObserver.h"

#include "nsWeakReference.h"

//-----------------------------------------------------------------------------

class nsFtpProtocolHandler final : public nsIProxiedProtocolHandler

                                 , public nsIObserver

                                 , public nsSupportsWeakReference

{

public:

    NS_DECL_THREADSAFE_ISUPPORTS

    NS_DECL_NSIPROTOCOLHANDLER

    NS_DECL_NSIPROXIEDPROTOCOLHANDLER

    NS_DECL_NSIOBSERVER

    nsFtpProtocolHandler();

    nsresult Init();

    // FTP Connection list access

    nsresult InsertConnection(nsIURI *aKey, nsFtpControlConnection *aConn);

    nsresult RemoveConnection(nsIURI *aKey, nsFtpControlConnection **aConn);

    uint32_t GetSessionId() { return mSessionId; }

    uint8_t GetDataQoSBits() { return mDataQoSBits; }

    uint8_t GetControlQoSBits() { return mControlQoSBits; }

private:

    virtual ~nsFtpProtocolHandler();

    // Stuff for the timer callback function

    struct timerStruct {

        nsCOMPtr<nsITimer> timer;

        RefPtr<nsFtpControlConnection> conn;

        char *key;

        timerStruct() : key(nullptr) {}

        ~timerStruct() {

            if (timer)

                timer->Cancel();

            if (key)

                free(key);

            if (conn) {

                conn->Disconnect(NS_ERROR_ABORT);

            }

        }

    };

    static void Timeout(nsITimer *aTimer, void *aClosure);

    void ClearAllConnections();

    nsTArray<timerStruct*> mRootConnectionList;

    int32_t mIdleTimeout;

    bool mEnabled;

    // When "clear active logins" is performed, all idle connection are dropped

    // and mSessionId is incremented. When nsFtpState wants to insert idle

    // connection we refuse to cache if its mSessionId is different (i.e.

    // control connection had been created before last "clear active logins" was

    // performed.

    uint32_t mSessionId;

    uint8_t mControlQoSBits;

    uint8_t mDataQoSBits;

};

//-----------------------------------------------------------------------------

extern nsFtpProtocolHandler *gFtpHandler;

#include "mozilla/Logging.h"

extern mozilla::LazyLogModule gFTPLog;

#endif // !nsFtpProtocolHandler_h__