digestauth.cpp

linux下的一款播放器

/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: digestauth.cpp, 2004/27/07 
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
 * are subject to the current version of the RealNetworks Public
 * Source License (the "RPSL") available at
 * http://www.helixcommunity.org/content/rpsl unless you have licensed
 * the file under the current version of the RealNetworks Community
 * Source License (the "RCSL") available at
 * http://www.helixcommunity.org/content/rcsl, in which case the RCSL
 * will apply. You may also obtain the license terms directly from
 * RealNetworks.  You may not use this file except in compliance with
 * the RPSL or, if you have a valid RCSL with RealNetworks applicable
 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
 * contents of the file.
 * 
 * Alternatively, the contents of this file may be used under the
 * terms of the GNU General Public License Version 2 or later (the
 * "GPL") in which case the provisions of the GPL are applicable
 * instead of those above. If you wish to allow use of your version of
 * this file only under the terms of the GPL, and not to allow others
 * to use your version of this file under the terms of either the RPSL
 * or RCSL, indicate your decision by deleting the provisions above
 * and replace them with the notice and other provisions required by
 * the GPL. If you do not delete the provisions above, a recipient may
 * use your version of this file under the terms of any one of the
 * RPSL, the RCSL or the GPL.
 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
 * portions it created.
 * 
 * This file, and the files included with this file, is distributed
 * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
 * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
 * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
 * ENJOYMENT OR NON-INFRINGEMENT.
 * 
 * Technology Compatibility Kit Test Suite(s) Location:
 *    http://www.helixcommunity.org/content/tck
 * 
 * Contributor(s):
 * 
 * ***** END LICENSE BLOCK ***** */

#include "hxcom.h"
#include "hxplugn.h"
#include "hxplgns.h"
#include "hxfiles.h"
#include "hxauthn.h"
#include "hxdb.h"
#include "hxengin.h"

#include "md5.h"

#include "chxpckts.h"
#include "hashauthbase.h"
#include "digestauth.h"

#include "hxver.h"
#include "rn5auth.ver"

const char* CDigestAuthenticator::zm_pDescription = "RealNetworks Digest Authenticator";
const char* CDigestAuthenticator::zm_pCopyright	 = HXVER_COPYRIGHT;
const char* CDigestAuthenticator::zm_pMoreInfoURL = HXVER_MOREINFO;

HX_RESULT STDAPICALLTYPE CDigestAuthenticator::HXCreateInstance(IUnknown**  /*OUT*/	ppIUnknown)
{
    *ppIUnknown = (IUnknown*)(IHXPlugin*)new CDigestAuthenticator();
    if (*ppIUnknown)
    {
        (*ppIUnknown)->AddRef();
        return HXR_OK;
    }
    return HXR_OUTOFMEMORY;    
}

CDigestAuthenticator::CDigestAuthenticator():m_algorithm(ALGO_UNKNOWN)
{
}

CDigestAuthenticator::~CDigestAuthenticator()
{
}

// *** IUnknown methods ***

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::QueryInterface
//  Purpose:
//	Implement this to export the interfaces supported by your 
//	object.
//
STDMETHODIMP CDigestAuthenticator::QueryInterface(REFIID riid, void** ppvObj)
{
    if (IsEqualIID(riid, IID_IUnknown))
    {
        AddRef();
        *ppvObj = this;
        return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXPlugin))
    {
        AddRef();
        *ppvObj = (IHXPlugin*)this;
        return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXPluginProperties))
    {
        AddRef();
        *ppvObj = (IHXPluginProperties*)this;
        return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXServerAuthConversation))
    {
        AddRef();
        *ppvObj = (IHXServerAuthConversation*)this;
        return HXR_OK;
    }
    else if (IsEqualIID(riid, IID_IHXAuthenticationDBAccessResponse))
    {
        AddRef();
        *ppvObj = (IHXAuthenticationDBAccessResponse*)this;
        return HXR_OK;
    }

    if (HXR_OK == CHashAuthenticatorBase::QueryInterface(riid, ppvObj))
    {
        return HXR_OK;
    }

    *ppvObj = NULL;
    return HXR_NOINTERFACE;        
}

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::AddRef
//  Purpose:
//	Everyone usually implements this the same... feel free to use
//	this implementation.
//
STDMETHODIMP_(ULONG32) CDigestAuthenticator::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

/////////////////////////////////////////////////////////////////////////
//  Method:
//	IUnknown::Release
//  Purpose:
//	Everyone usually implements this the same... feel free to use
//	this implementation.
//
STDMETHODIMP_(ULONG32) CDigestAuthenticator::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}

/************************************************************************
 *  Method:
 *    IHXPlugin::InitPlugin
 *  Purpose:
 *    Initializes the plugin for use. This interface must always be
 *    called before any other method is called. This is primarily needed
 *    so that the plugin can have access to the context for creation of
 *    IHXBuffers and IMalloc.
 */
STDMETHODIMP CDigestAuthenticator::InitPlugin(IUnknown* /*IN*/ pContext)
{
    m_pContext = pContext;

    if (m_pContext)
    {
	m_pContext->AddRef();
    }


    return HXR_OK;
}

/************************************************************************
 *  Method:
 *    IHXPlugin::GetPluginInfo
 *  Purpose:
 *    Returns the RN5 information about this plugin. Including:
 *
 *    bLoadMultiple	whether or not this plugin DLL can be loaded
 *			multiple times. All File Formats must set
 *			this value to TRUE.
 *    pDescription	which is used in about UIs (can be NULL)
 *    pCopyright	which is used in about UIs (can be NULL)
 *    pMoreInfoURL	which is used in about UIs (can be NULL)
 */
STDMETHODIMP 
CDigestAuthenticator::GetPluginInfo
(
    REF(BOOL)        /*OUT*/ bLoadMultiple,
    REF(const char*) /*OUT*/ pDescription,
    REF(const char*) /*OUT*/ pCopyright,
    REF(const char*) /*OUT*/ pMoreInfoURL,
    REF(ULONG32)     /*OUT*/ ulVersionNumber
)
{
    bLoadMultiple = TRUE;   // Must be true for file formats.

    pDescription    = zm_pDescription;
    pCopyright	    = zm_pCopyright;
    pMoreInfoURL    = zm_pMoreInfoURL;
    ulVersionNumber = TARVER_ULONG32_VERSION;

    return HXR_OK;
}

// IHXPluginProperties
STDMETHODIMP
CDigestAuthenticator::GetProperties(REF(IHXValues*) pOptions)
{
    pOptions = new CHXHeader();

    if (pOptions)
    {
	    pOptions->AddRef();

	    _SetPropertyFromCharArray(pOptions, "PluginType", "Authenticator");
	    _SetPropertyFromCharArray(pOptions, "PluginID", "rn-auth-digest");
	    _SetPropertyFromCharArray(pOptions, "AuthenticationProtocolID", "Digest");
    }
    else
    {
	return HXR_OUTOFMEMORY;
    }
    return HXR_OK;
}

// IHXServerAuthConversation
STDMETHODIMP 
CDigestAuthenticator::MakeChallenge(IHXServerAuthResponse* pServerRespondee,
    IHXRequest*            pServerRequest)
{
    if(!pServerRespondee || !pServerRequest)
    {
	    HX_ASSERT(0);
	    return HXR_UNEXPECTED;
    }

    HX_RELEASE(m_pServerRequest);
    HX_RELEASE(m_pRequestContext);

    m_pServerRequest = pServerRequest;
    m_pServerRequest->AddRef();
    m_pServerRequest->QueryInterface(IID_IHXRequestContext, (void **)&m_pRequestContext);

    HX_RELEASE(m_pServerRespondee);
    m_pServerRespondee = pServerRespondee;
    m_pServerRespondee->AddRef();

    if(!m_pRequestContext)
    {
	    m_pServerRespondee->ChallengeReady(HXR_UNEXPECTED, pServerRequest);
	    HX_ASSERT(0);
	    HX_RELEASE(m_pServerRequest);
	    HX_RELEASE(m_pServerRespondee);
	    return HXR_UNEXPECTED;
    }

    IHXValues* pResponseHeaders = NULL;

    pServerRequest->GetRequestHeaders(pResponseHeaders);

    if(!pResponseHeaders)
    {
	    m_pServerRespondee->ChallengeReady(HXR_UNEXPECTED, pServerRequest);
	    HX_ASSERT(0);
	    HX_RELEASE(m_pServerRequest);
	    HX_RELEASE(m_pRequestContext);
	    HX_RELEASE(m_pServerRespondee);
	    return HXR_UNEXPECTED;
    }

    IHXBuffer* pAuthBuf = NULL;

    pResponseHeaders->GetPropertyCString("Authorization", pAuthBuf);

    HX_RELEASE(pResponseHeaders);