[Decaldev-cvscommit] source: encrypted messages support

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

Log Message:
-----------
encrypted messages support

Modified Files:
--------------
    /cvsroot/decaldev/source/DecalNet:
        Message.cpp
        Message.h
        StdAfx.h

Revision Data
-------------
Index: Message.cpp
===================================================================
RCS file: /cvsroot/decaldev/source/DecalNet/Message.cpp,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -d -r1.5 -r1.6
--- Message.cpp	19 Nov 2002 02:25:02 -0000	1.5
+++ Message.cpp	15 Oct 2003 20:10:03 -0000	1.6
@@ -44,11 +44,76 @@
    m_pService->m_pDecal->MapPath( strTemplate, &strPath );
 
    g_pXML.CreateInstance( __uuidof( MSXML::DOMDocument ) );
-   g_pXML->load( strPath.m_str );
+   BOOL bSuccess = g_pXML->load( strPath.m_str );
+
+   if( ! bSuccess )
+   {
+	   USES_CONVERSION;
+		std::string szXML;
+		DecryptXML( OLE2A( strPath.m_str ), szXML );
+
+		if( szXML != "" )
+			bSuccess = g_pXML->loadXML( _bstr_t( szXML.c_str() ) );
+   }
 
    // Initialize our schema helper objects
    cFieldLoader::init();
    cElementParser::init();
+}
+
+void cMessage::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 );
 }
 
 void cMessage::term()
Index: Message.h
===================================================================
RCS file: /cvsroot/decaldev/source/DecalNet/Message.h,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -d -r1.3 -r1.4
--- Message.h	12 Apr 2002 01:07:34 -0000	1.3
+++ Message.h	15 Oct 2003 20:10:03 -0000	1.4
@@ -8,6 +8,9 @@
 class cNetService;
 class cMessageRoot;
 
+// the public key to unencrypt xmls
+#include "..\include\DecalKey.h"
+
 /////////////////////////////////////////////////////////////////////////////
 // cMessage
 class ATL_NO_VTABLE cMessage : 
@@ -15,7 +18,9 @@
 	public IDispatchImpl< IMessage2, &IID_IMessage2, &LIBID_DecalNet >
 {
 public:
-   class cMessageElement;
+	void DecryptXML( const char *szFilename, std::string &szXML );
+	
+	class cMessageElement;
 
    class cField
    {
Index: StdAfx.h
===================================================================
RCS file: /cvsroot/decaldev/source/DecalNet/StdAfx.h,v
retrieving revision 1.6
retrieving revision 1.7
diff -u -d -r1.6 -r1.7
--- StdAfx.h	11 Oct 2003 01:45:21 -0000	1.6
+++ StdAfx.h	15 Oct 2003 20:10:03 -0000	1.7
@@ -20,6 +20,8 @@
 #include <stdlib.h>
 
 #include <atlbase.h>
+#include <atlcrypt.h>
+
 //You may derive a class from CComModule and use it if you want to override
 //something, but do not change the name of _Module
 extern CComModule _Module;
@@ -29,6 +31,7 @@
 #include <time.h>
 
 #include <list>
+#include <string>
 #include <map>
 #include <deque>
 #include <vector>