Beesnest/DcFileAttrib.cpp

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/*
Copyright 2007 Erez Bibi (erezbibi@users.sourceforge.net)
This file is part of Beesnest.

Beesnest 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.

Beesnest 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 Beesnest; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

/**
 * CdcFileAttrib.cpp: implementation of the CdcFileAttrib class.
 * for documentation see the header file.
 */

#include "DcFileAttrib.h"

void CdcFileAttrib::Attach (const CdcFileAttrib& fa)
{
    /* Copy values. */
    pInnerData = fa.pInnerData;
    pRefCount = fa.pRefCount;
    /* Increase reference. */
    if (pRefCount != NULL)
        (*pRefCount)++;
}


void CdcFileAttrib::Detach ()
{
    /* Decrease reference counter and delete data if needed. */
    if (pRefCount != NULL && --(*pRefCount) == 0)
    {
        if (pInnerData != NULL)
        {
            delete pInnerData;
            pInnerData = NULL;
        }
        delete pRefCount;
        pRefCount = NULL;
    }
}


const CdcFileAttrib& CdcFileAttrib::operator = (const CdcFileAttrib& fa)
{
    if (pInnerData != fa.pInnerData)
    {
        Detach ();
        Attach (fa);
    }

    return *this;
}


CdcFileAttrib::CdcFileAttrib (const CdcString& url, const CdcString& host, bool inc)
{
    pRefCount = new int (1);
    pInnerData = new CdcFileAttribInnerData ();
    if (pInnerData == NULL)
        throw (CdcException ("Out of memory!"));

    pInnerData->isFound = false;
    pInnerData->isRedirect = false;

    /* Parse the url string. */
    pInnerData->sURL = url;
    /* Protect from going up the diractory tree. */
    if (pInnerData->sURL.Find ("../") != -1)
        return;
    /* Check file extension. */
    int dot = pInnerData->sURL.ReverseFind ('.');
    if (dot == -1 && pInnerData->sURL[pInnerData->sURL.GetLength () - 1] != '/')
    {   /* Need to redirect */
        pInnerData->isRedirect = true;
        pInnerData->sURL += '/';
    }
    else if (dot == -1)
    {    /* Default file (no file name). */
        pInnerData->sURL += CdcParameters::GetParam ("Server->Hosts->" +
            host + "->Default-File");
        dot = pInnerData->sURL.ReverseFind ('.');
    }
    if (dot == -1) return;
    pInnerData->sFileExtention = pInnerData->sURL.Mid (dot + 1);
    pInnerData->sFileExtention.MakeLower ();

    /* Check if host is in the allow list. */
    CdcString allow_host = CdcParameters::GetParam (
        "Server->File-Types->" + pInnerData->sFileExtention + "->Allow-Host");
     if (allow_host.Find ("all") != -1 || allow_host.Find (host) != -1 ||
        (inc == true && allow_host.Find ("inc") != -1))
     {
         CdcString host_root = CdcParameters::GetParam (
            "Server->Hosts->" + host + "->Root");
        pInnerData->sFullName = CdcFileUtil::GetWorkPath(host_root) + '/' +
            pInnerData->sURL;
        pInnerData->sFullName.Replace ('/', '\\');
        pInnerData->sFullName.Replace ("\\\\", '\\');
        pInnerData->isFound = pInnerData->oFileStatus.OpenFile (
            pInnerData->sFullName);
    }
}