[Decaldev-cvscommit] source: Encrypted memloc support

[Jeffrey D. <ha...@us...>]

Log Message:
-----------
Encrypted memloc support

Modified Files:
--------------
    /cvsroot/decaldev/source/Decal:
        ACHooks.cpp
        ACHooks.h
        Decal.vcproj
        StdAfx.h

Revision Data
-------------
Index: ACHooks.cpp
===================================================================
RCS file: /cvsroot/decaldev/source/Decal/ACHooks.cpp,v
retrieving revision 1.67
retrieving revision 1.68
diff -u -d -r1.67 -r1.68
--- ACHooks.cpp	8 Oct 2003 20:56:10 -0000	1.67
+++ ACHooks.cpp	15 Oct 2003 19:45:48 -0000	1.68
@@ -20,8 +20,6 @@
 */
 #define BSTRT(x) (_Unnamed = L##x, _Unnamed)
 
-
-
 /////////////////////////////////////////////////////////////////////////////
 cACHooks* cACHooks::s_pACHooks = NULL;
 long g_lObjectDestroyedProc = 0;
@@ -178,6 +176,15 @@
 	pMemLocDoc->async = false;
 
 	VARIANT_BOOL bSuccess = pMemLocDoc->load( szPath );
+	if( ! bSuccess )
+	{
+		std::string szXML;
+		DecryptXML( szPath, szXML );
+
+		if( szXML != "" )
+			bSuccess = pMemLocDoc->loadXML( _bstr_t( szXML.c_str() ) );
+	}
+
 	if( bSuccess )
 	{
 		MSXML::IXMLDOMElementPtr pNode = pMemLocDoc->selectSingleNode( BSTRT( "locations" ) );
@@ -860,6 +867,61 @@
 
 	if( m_bIdQueueRef )
 		m_pIdQueue.Release();
+}
+
+void cACHooks::DecryptXML( const char *szPath, std::string &szXML )
+{
+	if( szPath == NULL )
+	{
+		szXML = "";
+		return;
+	}
+
+	FILE *f = fopen( szPath, "rb" );
+	if( f == NULL )
+	{
+		szXML = "";
+		return;
+	}
+
+	szXML.clear();
+	unsigned char szBuffer[1025];
+
+	try
+	{
+		CCryptProv crypt;
+		if( crypt.Initialize( PROV_RSA_FULL, "Decal_Memlocs", MS_DEF_PROV ) == NTE_BAD_KEYSET )
+			crypt.Initialize( PROV_RSA_FULL, "Decal_Memlocs", MS_DEF_PROV, CRYPT_NEWKEYSET );
+
+		CCryptMD5Hash hash;
+		hash.Initialize( crypt );
+		hash.AddString( DECAL_KEY );
+
+		CCryptDerivedKey key;
+		key.Initialize( crypt, hash );
+
+		DWORD dwDecLen = 0;
+
+		while( ! feof(f) )
+		{
+			memset( szBuffer, 0, sizeof( szBuffer ) );
+			dwDecLen = fread( szBuffer, 1, 1024, f );
+			key.Decrypt( feof(f), (BYTE *) szBuffer, &dwDecLen );
+			szXML += (char *)szBuffer;
+		}
+
+		key.Destroy();
+		hash.Destroy();
+		crypt.Release();
+	}
+
+	catch( ... )
+	{
+		// crap...
+		szXML = "";
+	}
+
+	fclose( f );
 }
 
 STDMETHODIMP cACHooks::SetDecal( IUnknown *pDecal )
Index: ACHooks.h
===================================================================
RCS file: /cvsroot/decaldev/source/Decal/ACHooks.h,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -d -r1.47 -r1.48
--- ACHooks.h	9 Sep 2003 03:08:32 -0000	1.47
+++ ACHooks.h	15 Oct 2003 19:45:48 -0000	1.48
@@ -9,6 +9,9 @@
 #include "DecalManager.h"
 #include "DecalCP.h"
 
+// the public key to unencrypt memlocs.xml
+#include "..\include\DecalKey.h"
+
 // .NET vs VC6.0 Compiler Config 
 #if _MSC_VER > 1200 // .NET 
 #import "..\Include\Inject.tlb" 
@@ -95,6 +98,7 @@
 
 private:
 	long*	GetCs(long offs=0) ;
+	void	DecryptXML( const char *szPath, std::string &szXML );
 
 	long	m_Hooks ;
 	typedef std::map< std::string, sMemoryLocation > LocMap;
@@ -342,4 +346,4 @@
 	STDMETHOD(SendMessageByMask)(LONG lMask, BSTR szMessage);
 };
 
-#endif // __ACHOOKS_H_
\ No newline at end of file
+#endif // __ACHOOKS_H_
Index: Decal.vcproj
===================================================================
RCS file: /cvsroot/decaldev/source/Decal/Decal.vcproj,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- Decal.vcproj	19 Jun 2003 22:04:03 -0000	1.3
+++ Decal.vcproj	15 Oct 2003 19:45:48 -0000	1.4
@@ -932,6 +932,9 @@
 				RelativePath="..\Include\DecalImpl.h">
 			</File>
 			<File
+				RelativePath="..\Include\DecalKey.h">
+			</File>
+			<File
 				RelativePath="DecalManager.h">
 			</File>
 			<File
Index: StdAfx.h
===================================================================
RCS file: /cvsroot/decaldev/source/Decal/StdAfx.h,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -d -r1.6 -r1.7
--- StdAfx.h	29 May 2003 20:50:36 -0000	1.6
+++ StdAfx.h	15 Oct 2003 19:45:48 -0000	1.7
@@ -23,6 +23,8 @@
 #include <atlcom.h>
 #include <comdef.h>
 
+#include <atlcrypt.h>
+
 #include <ddraw.h>
 #include <d3d.h>