xmlconfig.h

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/* ***** BEGIN LICENSE BLOCK *****
 * Source last modified: $Id: xmlconfig.h,v 1.3.36.1 2004/07/19 21:04:07 hubbe Exp $
 * 
 * Portions Copyright (c) 1995-2004 RealNetworks, Inc. All Rights Reserved.
 * 
 * The contents of this file, and the files included with this file,
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 * Source License (the "RPSL") available at
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 * 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
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 * to this file, the RCSL.  Please see the applicable RPSL or RCSL for
 * the rights, obligations and limitations governing use of the
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 * "GPL") in which case the provisions of the GPL are applicable
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 * 
 * This file is part of the Helix DNA Technology. RealNetworks is the
 * developer of the Original Code and owns the copyrights in the
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 * 
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 * ***** END LICENSE BLOCK ***** */
//   $Id: xmlconfig.h,v 1.3.36.1 2004/07/19 21:04:07 hubbe Exp $

#ifndef _XMLCONFIG_H_
#define _XMLCONFIG_H_

#include "hxslist.h"
#include "hxstack.h"
#include "dict.h"
#include "hxcfg.h"
#include "hxmon.h"
#include "hxcomm.h"
#include "hxstrutl.h"

class XMLTag;
class Process;
class ServerRegistry;
class HXRegistry;
class CBigByteQueue;

#define AL_TAGIFY 1

typedef enum
{
    CfgList,
    CfgVar
} XMLConfigType;

typedef enum
{
    CfgVarInt,
    CfgVarString,
    CfgVarBool
} XMLConfigVarType;

struct XMLConfigAlias
{
    const char* from;
    const char* to;
    const char* attr1;
    const char* attr2;
    const char* attr3;
    UINT32 flags;
};

class XMLConfigString
{
    char* m_pData;
    int len;
 
public:
    XMLConfigString(XMLConfigString& Old)
    {
	m_pData = new char[256];
	len = Old.len;
        memcpy(m_pData, Old.m_pData, (len + 1 <= 256 ? len + 1 : 256)); /* Flawfinder: ignore */
    }
    XMLConfigString()
    {
	m_pData = new char[256];
	len = 0;
	m_pData[0] = 0;
    }
    ~XMLConfigString()
    {
	delete[] m_pData;
    }
    const char* CharStar()
    {
	return m_pData;
    }
    const char* Top()
    {
	int i = len;
	while (i && m_pData[i] != '.')
	{
	    i--;
	}
	if (m_pData[i] == '.')
	{
	    i++;
	}
	return &(m_pData[i]);
    }
    void AddLevel(const char* pNew)
    {
	if (len)
	{
	    len += SafeSprintf(&(m_pData[len]), 256 - len,
		".%s", pNew);
	}
	else
	{
	    len = SafeSprintf(m_pData, 256,
		"%s", pNew);
	}
    }
    void RemoveLevel()
    {
	int i = len;
	while (i > 0 && m_pData[i] != '.')
	{
	    i--;
	}
	m_pData[i] = 0;
	len = i;
    }   
};

class XMLPropInfo
{
public:
    char* m_pName;
    HXPropType m_Type;

    XMLPropInfo()
	: m_pName(0)
    {
    }

    ~XMLPropInfo()
    {
	if (m_pName)
	{
	    delete[] m_pName;
	}
    }
};

class XMLConfig : public IHXRegConfig,
                  public IHXActivePropUserResponse
{
public:
    XMLConfig(IHXRegistry2* pRegistry, IHXErrorMessages* pMessages, const char* szserverversion,
                     UINT32 dwMajor, UINT32 dwMinor);
    virtual ~XMLConfig();

    /*
     * Com stuff.
     */
    STDMETHOD(QueryInterface) (REFIID riid, void** ppvObj);
    STDMETHOD_(ULONG32,AddRef)  (THIS);
    STDMETHOD_(ULONG32,Release) (THIS);

    /*
     * IHXRegConfig stuff.
     */
    STDMETHOD(WriteKey)	(THIS_
			const char* pKeyName);


    /************************************************************************
    * Called with status result on completion of set request.
    */
    STDMETHOD(SetActiveIntDone)   (THIS_
				    HX_RESULT res,
				    const char* pName,
				    UINT32 ul,
				    IHXBuffer* pInfo[],
				    UINT32 ulNumInfo);

    STDMETHOD(SetActiveStrDone)	  (THIS_
				    HX_RESULT res,
				    const char* pName,
				    IHXBuffer* pBuffer,
				    IHXBuffer* pInfo[],
				    UINT32 ulNumInfo);

    STDMETHOD(SetActiveBufDone)	  (THIS_
				    HX_RESULT res,
				    const char* pName,
				    IHXBuffer* pBuffer,
				    IHXBuffer* pInfo[],
				    UINT32 ulNumInfo);

    STDMETHOD(DeleteActivePropDone) (THIS_
				    HX_RESULT res,
				    const char* pName,
				    IHXBuffer* pInfo[],
				    UINT32 ulNumInfo);

    /*
     * Uber reconfigure the server.
     */
    HX_RESULT Reconfigure(IHXReconfigServerResponse* pResp);

    /*
     * Reconfigure from file.
     */
    HX_RESULT Reconfigure(const char* pFilename);

    /*
     * Reconfigure from registry.
     */
    HX_RESULT ReconfigureFromReg(const char* pKeyname);

    IHXReconfigServerResponse* m_pReconfigureResponse;

    class XMLConfigListNode;

    class XMLConfigList : public CHXSimpleList
    {
    public:
	~XMLConfigList();
	XMLConfigListNode* m_parentnode;
	friend class XMLConfig;
    };

    class XMLConfigListNode
    {
    public:
	XMLConfigListNode() : m_pList(NULL), m_name(NULL), m_value(NULL),
	                      m_vserver(-1) {};
	XMLConfigList* m_pList;
	char* m_name;
	char* m_value;
	XMLConfigType m_type;
	UINT32 m_num;
	XMLConfigListNode* m_parent;
	UINT32 m_int;
	BOOL   m_bool;
	INT32  m_vserver;

	char* get_registry_name(INT32 vserver = -1);
	~XMLConfigListNode();
	friend class XMLConfig;
    };
	
    CHXStack m_pListStack;
    XMLConfigList* m_pList;

    HX_RESULT Write(const char* name, const char* filename);
    HX_RESULT Read(char* filename, char* pServRegKey, BOOL bIncludedFile = FALSE);
//    STDMETHOD(Read) (THIS_ char* filename, char* pServRegKey, BOOL bIncludedFile = FALSE);
    HX_RESULT WriteToFile(const char* pKeyName, const char* pFilename);
    void _AddPropsToList(CHXSimpleList* pList, const char* pRoot, IHXRegistry2* pReg);
    void _RemovePropFromList(CHXSimpleList* pList, const char* pName);
    char* _GetPropValueString(const char* pName, IHXRegistry2* pReg);
    void _CleanList(CHXSimpleList* pList);
    void AppendPropsToFile(FILE* fp, XMLConfigString level,
	CHXSimpleList* pList, int indent_per_level,
	IHXRegistry2* hxreg,
	const char* pBase);
    void _AppendPropToFile(FILE* fp, XMLConfigString level,
			     int indent_per_level,
			     IHXRegistry2* hxreg,
			     const char* pBase);
    void _IndentFile(FILE* fp, int indent_per_level,
			 XMLConfigString level,
			 const char* pBase);
    int _PropExists(XMLConfigString* p, IHXRegistry2* preg);
    HX_RESULT _ResetProp(XMLConfigString*, const char*,
	IHXRegistry2*);
    void MaybeSendReconfigResponse();
    void _HandlePropsRemovedFromFile(
	XMLConfigString*, CHXSimpleList*,
	IHXRegistry2*);
    IHXBuffer* _GetDefaultValString(
	const char*, IHXRegistry2*);
    int _GetDefaultValInt(
	const char*, INT32*, IHXRegistry2*);

protected:
//Default Constructor
    XMLConfig();

    HX_RESULT init(IHXRegistry2* pRegistry, IHXErrorMessages* pMessages, const char* szserverversion,
                   UINT32 dwMajor, UINT32 dwMinor);

//Properties
    char* m_filename;


private:
    INT32 m_lRefCount;
    IHXRegistry2* m_pRegistry;
    IHXErrorMessages* m_pMessages;
    char* m_szServerversion;
    UINT32 m_ulMajor;
    UINT32 m_ulMinor;

    UINT32 m_ActiveSetsOutstanding;
    Dict m_alias_dict;

    INT32 m_vserver;
    
    HX_RESULT DumpConfig(const char* name, int indent, FILE* outfile,
			 IHXRegistry2* hxreg);
    BOOL Expand(XMLTag*, CBigByteQueue* queue);
    void ExpandAttribute(XMLTag*, const char* attribute);
    void DumpList(XMLConfigList* list, int indent);
    void StuffRegistry(XMLConfigList* list);
    XMLConfigVarType GetVarType(XMLConfigListNode* node);
};

#endif