VendorCache.cpp

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//
// VendorCache.cpp
//
// Copyright (c) Shareaza Development Team, 2002-2005.
// This file is part of SHAREAZA (www.shareaza.com)
//
// Shareaza 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.
//
// Shareaza 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 Shareaza; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//

#include "StdAfx.h"
#include "Shareaza.h"
#include "Settings.h"
#include "VendorCache.h"
#include "XML.h"

#ifdef _DEBUG
#undef THIS_FILE
static char THIS_FILE[]=__FILE__;
#define new DEBUG_NEW
#endif

CVendorCache VendorCache;


// CVendorCache construction

CVendorCache::CVendorCache()
{
        m_pNull = new CVendor();
        m_pNull->m_bAuto = TRUE;
        
        m_pShareaza = m_pED2K = m_pNull;
}

CVendorCache::~CVendorCache()
{
        delete m_pNull;
        Clear();
}

// CVendorCache list access

POSITION CVendorCache::GetIterator() const
{
        return m_pMap.GetStartPosition();
}

CVendor* CVendorCache::GetNext(POSITION& pos) const
{
        CVendor* pItem = NULL;
        CString strCode;
        m_pMap.GetNextAssoc( pos, strCode, (void*&)pItem );
        return pItem;
}

int CVendorCache::GetCount() const
{
        return m_pMap.GetCount();
}

// CVendorCache lookup

CVendor* CVendorCache::Lookup(LPCSTR pszCode, BOOL bCreate)
{
        WCHAR szCode[5] = { pszCode[0], pszCode[1], pszCode[2], pszCode[3], 0 };
        return Lookup( szCode, bCreate );
}

CVendor* CVendorCache::Lookup(LPCWSTR pszCode, BOOL bCreate)

{
        CVendor* pVendor = NULL;

        if ( m_pMap.Lookup( pszCode, (void*&)pVendor ) ) return pVendor;
        if ( ! bCreate ) return NULL;

        if ( ! pszCode[0] || ! pszCode[1] || ! pszCode[2] || ! pszCode[3] ) return m_pNull;
        if ( ! _istalpha( pszCode[0] ) || ! _istalpha( pszCode[1] ) ) return m_pNull;
        if ( ! _istalpha( pszCode[2] ) || ! _istalpha( pszCode[3] ) ) return m_pNull;

        pVendor = new CVendor( pszCode );
        m_pMap.SetAt( pszCode, pVendor );

        return pVendor;
}

CVendor* CVendorCache::LookupByName(LPCTSTR pszName) const
{
        for ( POSITION pos = GetIterator() ; pos ; )
        {
                CVendor* pVendor = GetNext( pos );

                if ( _tcsstr( pszName, pVendor->m_sName ) != NULL ) return pVendor;
        }

        return NULL;
}

// CVendorCache clear

void CVendorCache::Clear()
{
        for ( POSITION pos = GetIterator() ; pos ; )
        {
                delete GetNext( pos );
        }
        m_pMap.RemoveAll();
        m_pShareaza = NULL;
}

// CVendorCache load

BOOL CVendorCache::Load()
{
        CString strPath = Settings.General.Path + _T("\\Data\\Vendors.xml");
        CXMLElement* pXML = CXMLElement::FromFile( strPath, TRUE );
        BOOL bSuccess = FALSE;
        
        if ( pXML != NULL )
        {
                bSuccess = LoadFrom( pXML );
                delete pXML;
        }
        
        return bSuccess;
}

// CVendorCache load internal

BOOL CVendorCache::LoadFrom(CXMLElement* pXML)
{
        if ( ! pXML->IsNamed( _T("vendorCache") ) ) return FALSE;

        for ( POSITION pos = pXML->GetElementIterator() ; pos ; )
        {
                CXMLElement* pKey = pXML->GetNextElement( pos );

                if ( pKey->IsNamed( _T("vendor") ) )
                {
                        CVendor* pVendor = new CVendor();
                        
                        if ( pVendor->LoadFrom( pKey ) )
                        {
                                CVendor* pOld = NULL;
                                
                                if ( m_pMap.Lookup( pVendor->m_sCode, (void*&)pOld ) )
                                {
                                        theApp.Message( MSG_ERROR, _T("Duplicate Vendors.xml key for \"%s\"."),
                                                (LPCTSTR)pVendor->m_sCode );
                                        delete pOld;
                                }
                                
                                m_pMap.SetAt( pVendor->m_sCode, pVendor );
                                
                                if ( pVendor->m_sCode == _T("RAZA") ) m_pShareaza = pVendor;
                                if ( pVendor->m_sCode == _T("ED2K") ) m_pED2K = pVendor;
                        }
                        else
                        {
                                delete pVendor;
                        }
                }
        }
        
        return GetCount() > 0;
}


// CVendor construciton

CVendor::CVendor(LPCTSTR pszCode)
{
        if ( m_bAuto = ( pszCode != NULL ) )
        {
                m_sCode = m_sName = pszCode;
                while ( m_sCode.GetLength() < 4 ) m_sCode += ' ';
                if ( m_sCode.GetLength() > 4 ) m_sCode = m_sCode.Left( 4 );
        }

        m_bChatFlag             = FALSE;
        m_bHTMLBrowse   = FALSE;
}

CVendor::~CVendor()
{
}

// CVendor load

BOOL CVendor::LoadFrom(CXMLElement* pXML)
{
        m_sCode = pXML->GetAttributeValue( _T("code") );
        if ( m_sCode.GetLength() != 4 ) return FALSE;

        for ( POSITION pos = pXML->GetElementIterator() ; pos ; )
        {
                CXMLElement* pKey = pXML->GetNextElement( pos );

                if ( pKey->IsNamed( _T("title") ) )
                {
                        if ( m_sName.GetLength() ) return FALSE;
                        m_sName = pKey->GetValue();
                }
                else if ( pKey->IsNamed( _T("link") ) )
                {
                        if ( m_sLink.GetLength() ) return FALSE;
                        m_sLink = pKey->GetValue();
                }
                else if ( pKey->IsNamed( _T("capability") ) )
                {
                        CString strCap = pKey->GetAttributeValue( _T("name") );
                        CharLower( strCap.GetBuffer() );
                        strCap.ReleaseBuffer(); 

                        BOOL bValue = TRUE;
                        
                        if ( strCap == _T("chatflag") )
                        {
                                m_bChatFlag = bValue;
                        }
                        else if ( strCap == _T("htmlhostbrowse") )
                        {
                                m_bHTMLBrowse = bValue;
                        }
                }
        }

        return m_sName.GetLength() > 0;
}

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