136 lines
3.2 KiB
C++
136 lines
3.2 KiB
C++
static void SetACLPrivileges();
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static bool ReadSacl=false;
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#ifndef SFX_MODULE
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void ExtractACL20(Archive &Arc,const wchar *FileName)
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{
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SetACLPrivileges();
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if (Arc.BrokenHeader)
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{
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uiMsg(UIERROR_ACLBROKEN,Arc.FileName,FileName);
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ErrHandler.SetErrorCode(RARX_CRC);
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return;
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}
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if (Arc.EAHead.Method<0x31 || Arc.EAHead.Method>0x35 || Arc.EAHead.UnpVer>VER_PACK)
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{
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uiMsg(UIERROR_ACLUNKNOWN,Arc.FileName,FileName);
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ErrHandler.SetErrorCode(RARX_WARNING);
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return;
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}
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ComprDataIO DataIO;
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Unpack Unpack(&DataIO);
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Unpack.Init(0x10000,false);
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Array<byte> UnpData(Arc.EAHead.UnpSize);
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DataIO.SetUnpackToMemory(&UnpData[0],Arc.EAHead.UnpSize);
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DataIO.SetPackedSizeToRead(Arc.EAHead.DataSize);
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DataIO.EnableShowProgress(false);
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DataIO.SetFiles(&Arc,NULL);
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DataIO.UnpHash.Init(HASH_CRC32,1);
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Unpack.SetDestSize(Arc.EAHead.UnpSize);
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Unpack.DoUnpack(Arc.EAHead.UnpVer,false);
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if (Arc.EAHead.EACRC!=DataIO.UnpHash.GetCRC32())
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{
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uiMsg(UIERROR_ACLBROKEN,Arc.FileName,FileName);
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ErrHandler.SetErrorCode(RARX_CRC);
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return;
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}
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SECURITY_INFORMATION si=OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|
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DACL_SECURITY_INFORMATION;
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if (ReadSacl)
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si|=SACL_SECURITY_INFORMATION;
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SECURITY_DESCRIPTOR *sd=(SECURITY_DESCRIPTOR *)&UnpData[0];
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int SetCode=SetFileSecurity(FileName,si,sd);
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if (!SetCode)
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{
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uiMsg(UIERROR_ACLSET,Arc.FileName,FileName);
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DWORD LastError=GetLastError();
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ErrHandler.SysErrMsg();
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if (LastError==ERROR_ACCESS_DENIED && !IsUserAdmin())
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uiMsg(UIERROR_NEEDADMIN);
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ErrHandler.SetErrorCode(RARX_WARNING);
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}
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}
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#endif
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void ExtractACL(Archive &Arc,const wchar *FileName)
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{
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Array<byte> SubData;
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if (!Arc.ReadSubData(&SubData,NULL,false))
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return;
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SetACLPrivileges();
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SECURITY_INFORMATION si=OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION|
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DACL_SECURITY_INFORMATION;
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if (ReadSacl)
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si|=SACL_SECURITY_INFORMATION;
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SECURITY_DESCRIPTOR *sd=(SECURITY_DESCRIPTOR *)&SubData[0];
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int SetCode=SetFileSecurity(FileName,si,sd);
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if (!SetCode)
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{
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wchar LongName[NM];
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if (GetWinLongPath(FileName,LongName,ASIZE(LongName)))
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SetCode=SetFileSecurity(LongName,si,sd);
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}
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if (!SetCode)
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{
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uiMsg(UIERROR_ACLSET,Arc.FileName,FileName);
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DWORD LastError=GetLastError();
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ErrHandler.SysErrMsg();
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if (LastError==ERROR_ACCESS_DENIED && !IsUserAdmin())
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uiMsg(UIERROR_NEEDADMIN);
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ErrHandler.SetErrorCode(RARX_WARNING);
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}
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}
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void SetACLPrivileges()
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{
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static bool InitDone=false;
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if (InitDone)
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return;
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if (SetPrivilege(SE_SECURITY_NAME))
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ReadSacl=true;
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SetPrivilege(SE_RESTORE_NAME);
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InitDone=true;
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}
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bool SetPrivilege(LPCTSTR PrivName)
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{
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bool Success=false;
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HANDLE hToken;
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if (OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES, &hToken))
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{
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TOKEN_PRIVILEGES tp;
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tp.PrivilegeCount = 1;
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tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
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if (LookupPrivilegeValue(NULL,PrivName,&tp.Privileges[0].Luid) &&
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AdjustTokenPrivileges(hToken, FALSE, &tp, 0, NULL, NULL) &&
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GetLastError() == ERROR_SUCCESS)
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Success=true;
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CloseHandle(hToken);
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}
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return Success;
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}
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