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lazarus-ccr/components/rx/rxfileutils.pas

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{ rxFileUtils is part of RxFPC library
Copyright (C) 2005-2010 Lagunov Aleksey alexs@hotbox.ru and Lazarus team
original conception from rx library for Delphi (c)
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version with the following modification:
As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent modules,and
to copy and distribute the resulting executable under terms of your choice,
provided that you also meet, for each linked independent module, the terms
and conditions of the license of that module. An independent module is a
module which is not derived from or based on this library. If you modify
this library, you may extend this exception to your version of the library,
but you are not obligated to do so. If you do not wish to do so, delete this
exception statement from your version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
for more details.
You should have received a copy of the GNU Library General Public License
along with this library; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
}
unit rxFileUtils;
{$mode objfpc}{$H+}
interface
uses
SysUtils;
function GetFileOwnerUser(const SearchDomain, FileName:String):String;
procedure GetFileOwnerData(const SearchDomain, FileName:String;out UserName, DomainName:string);
function NormalizeDirectoryName(const DirName:string):string;
function GetUserName:string;
implementation
uses
{$IFDEF WINDOWS}
Windows,
{$ELSE}
{$ENDIF}
FileUtil;
{$IF DEFINED(WINDOWS) AND NOT DEFINED(WINCE)}
function LStrError(const Ernum: Longint; const UseUTF8: Boolean = False): string;
const
MAX_ERROR = 1024;
var
Tmp: string;
TmpW: widestring;
begin
Result := ' [' + IntToStr(Ernum) + ']: ';
if USEUtf8 then begin
SetLength(TmpW, MAX_ERROR);
SetLength(TmpW, FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM or
FORMAT_MESSAGE_IGNORE_INSERTS or
FORMAT_MESSAGE_ARGUMENT_ARRAY,
nil, Ernum, 0, @TmpW[1], MAX_ERROR, nil));
Tmp := UTF8Encode(TmpW);
end else begin
SetLength(Tmp, MAX_ERROR);
SetLength(Tmp, FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM or
FORMAT_MESSAGE_IGNORE_INSERTS or
FORMAT_MESSAGE_ARGUMENT_ARRAY,
nil, Ernum, 0, @Tmp[1], MAX_ERROR, nil));
end;
if Length(Tmp) > 2 then
Delete(Tmp, Length(Tmp)-1, 2);
Result := Result + Tmp;
end;
{ TODO -oalexs : In future need rewrite this code for fix mem leak }
procedure GetFileNameOwner(const SearchDomain, FileName: String; out UserName, DomainName: string);
var
RCode, RC1:WINBOOL;
SDSize:DWORD; // Size of security descriptor
FAccountName:PChar; // Account name
lngAccountLen:DWORD; // Length of account name
FDomainName:PChar; // Domain name
lngDomainLen:DWORD; // Length of domain name
ptrUse:SID_NAME_USE; // Pointer to SID_NAME_USE
ptrOwner:PSID;
P:PByteArray;
begin
ptrOwner:=nil;
SDSize:=0;
P:=nil;
UserName:='';
DomainName:='';
RCode := GetFileSecurity(PChar(FileName), OWNER_SECURITY_INFORMATION, nil, 0, @SDSize);
GetMem(P, SDSize);
FillChar(P^, SDSize, 0);
RCode := GetFileSecurity(PChar(FileName), OWNER_SECURITY_INFORMATION, Pointer(P), SDSize, @SDSize);
if not RCode then
raise Exception.Create(LStrError(GetLastError, true));
RCode := GetSecurityDescriptorOwner(Pointer(P), ptrOwner, @RC1);
if not RCode then
raise Exception.Create(LStrError(GetLastError, true));
lngAccountLen:=0;
lngDomainLen:=0;
RCode := LookupAccountSid(PChar(SearchDomain), ptrOwner, nil, lngAccountLen, nil, lngDomainLen, ptrUse);
//' Configure the strings' buffer sizes
GetMem(FAccountName, lngAccountLen);
FillChar(FAccountName^, lngAccountLen, 0);
GetMem(FDomainName, lngDomainLen);
FillChar(FDomainName^, lngDomainLen, 0);
RCode:=LookupAccountSid(PChar(SearchDomain), ptrOwner, FAccountName, lngAccountLen, FDomainName, lngDomainLen, ptrUse);
if not RCode then
raise Exception.Create(LStrError(GetLastError, true));
UserName:=FAccountName;
DomainName:=FDomainName;
Freemem(P, SDSize);
Freemem(FAccountName, lngAccountLen);
Freemem(FDomainName, lngDomainLen);
end;
{$ELSE}
{$ENDIF}
function GetFileOwnerUser(const SearchDomain, FileName: String): String;
var
S:string;
begin
{$IF DEFINED(WINDOWS) AND NOT DEFINED(WINCE)}
GetFileNameOwner(UTF8ToSys(SearchDomain), UTF8ToSys(FileName), Result, S);
Result:=UTF8Encode(Result);
{$ELSE}
Result:='';
{$ENDIF}
end;
procedure GetFileOwnerData(const SearchDomain, FileName: String; out UserName,
DomainName: string);
begin
{$IF DEFINED(WINDOWS) AND NOT DEFINED(WINCE)}
GetFileNameOwner(UTF8ToSys(SearchDomain), UTF8ToSys(FileName), UserName, DomainName);
UserName:=UTF8Encode(UserName);
DomainName:=UTF8Encode(DomainName);
{$ELSE}
UserName:='';
DomainName:='';
{$ENDIF}
end;
{replase any dir separators '\' or '/' to system directory separator }
function NormalizeDirectoryName(const DirName: string): string;
var
i:integer;
begin
Result:=DirName;
for i:=1 to Length(Result) do
if Result[i] in ['/', '\'] then
Result[i]:=DirectorySeparator;
end;
function GetUserName: string;
{$IF DEFINED(WINDOWS) AND NOT DEFINED(WINCE)}
var
A:array [0..256] of Char;
L:DWORD;
{$ENDIF}
begin
{$IF DEFINED(WINDOWS) AND NOT DEFINED(WINCE)}
FillChar(A, SizeOf(A), 0);
L:=SizeOf(A)-1;
if Windows.GetUserNameA(@A, L) then
begin
Result:=SysToUTF8(StrPas(@A));
end
else
Result:=GetEnvironmentVariableUTF8('USERNAME');
{$ELSE}
Result:=GetEnvironmentVariable('USER');
{$ENDIF}
end;
end.