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 * Copyright (C) 1990-2007, Condor Team, Computer Sciences Department,
 * University of Wisconsin-Madison, WI.
 * Licensed under the Apache License, Version 2.0 (the "License"); you
 * may not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 *    http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.

#ifndef LSA_MGR_H
#define LSA_MGR_H

#include "condor_common.h"

#ifdef WIN32

#include <ntsecapi.h>

#define CC_DATA_DELIM L'|'          // separates data members in a record
#define CC_RECORD_DELIM L'\n' // separates different records

// Registry key name to store passwords under
// L$ makes it local, M$ makes it machine, G$ makes it global
#define CONDOR_PASSWORD_KEYNAME L"L$Condor_pw655321" 

int interactive(void); // forward decl

class lsa_mgr {

            lsa_mgr(); // constructor
            ~lsa_mgr(); // destructor

            // management methods

            // add new password to registry
            // returns true on successful add
            // fails if Owner:Login already exists
            bool add( const LPWSTR Login, const LPWSTR Passwd );

            // remove passwd, assuming what is passed matches what is to be removed.
            // returns true on successful remove
            bool remove( const LPWSTR Login );

            // returns true if we have a password stored for login
            bool isStored( const LPWSTR Login );

            // return user's password or NULL if no
            // matching record exists
            // You MUST delete the result!
            LPWSTR query( const LPWSTR Login );

            // convenience methods

            // prints all entries to stdout
            void printAllData();

            // Blows away everything...be careful!
            bool purgeAllData();
            // convert char to unicode string
            LPWSTR charToUnicode( char* str ); 
            // basically a wide-char strstr that's case insensitive
            wchar_t* wcsstri(wchar_t* haystack, wchar_t* needle);


            // convert unicode to LSA_UNICODE_STRING object
            void InitLsaString( PLSA_UNICODE_STRING LsaString, const LPWSTR String );

            // load all password data from registry
            bool loadDataFromRegistry();
            // store password data from registry
            bool storeDataToRegistry( PLSA_UNICODE_STRING lsaString );

            // copies DataBuffer into a new, null-terminated buffer at Data_string
            void extractDataString();

            // returns a pointer to the location in Data_string that matches the
            // given Owner, Login pair or null if no match
            LPWSTR findInDataString( const LPWSTR Login, bool case_sense=false );

            // cleans up buffers used by this class to store password info
            void freeBuffers() { 
                  if ( DataBuffer ) {
                        DataBuffer = NULL;
                  if ( Data_string ) {
                        if ( wcslen(Data_string) > 0 ) {
                              SecureZeroMemory(Data_string, sizeof(WCHAR)*wcslen(Data_string));
                        delete[] Data_string;
                        Data_string = NULL;

            // data members
            PLSA_UNICODE_STRING DataBuffer; // ptr to buffer as returned by win32 LSA call
            LPWSTR Data_string;     // ptr to raw string that contains the data from reg.

#endif // WIN32
#endif // LSA_MGR_H

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