https://git.reactos.org/?p=reactos.git;a=commitdiff;h=8c4b0c91428025b179196030a677c512f0af7428
commit 8c4b0c91428025b179196030a677c512f0af7428 Author: Eric Kohl <[email protected]> AuthorDate: Fri May 1 22:34:01 2020 +0200 Commit: Eric Kohl <[email protected]> CommitDate: Fri May 1 22:34:01 2020 +0200 [NETID] Disable the 'Network ID' and 'Change' buttons and show the admin note when the current user is not an administrator --- dll/win32/netid/netid.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) diff --git a/dll/win32/netid/netid.c b/dll/win32/netid/netid.c index 4d87a7a6cc7..2e2a1294525 100644 --- a/dll/win32/netid/netid.c +++ b/dll/win32/netid/netid.c @@ -159,6 +159,68 @@ GetComputerNames( return TRUE; } +static BOOL +IsUserAdmin(VOID) +{ + SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY}; + PSID pAdminsSid = NULL; + HANDLE hToken = NULL; + PTOKEN_GROUPS pGroups = NULL; + BOOL bIsAdmin = FALSE; + DWORD dwSize, i; + + if (!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID, + DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0, + &pAdminsSid)) + return FALSE; + + if (!OpenProcessToken(GetCurrentProcess(), + TOKEN_QUERY, + &hToken)) + goto done; + + dwSize = 0; + GetTokenInformation(hToken, + TokenGroups, + NULL, + 0, + &dwSize); + if (dwSize == 0) + goto done; + + pGroups = HeapAlloc(GetProcessHeap(), 0, dwSize); + if (pGroups == NULL) + goto done; + + if (!GetTokenInformation(hToken, + TokenGroups, + pGroups, + dwSize, + &dwSize)) + goto done; + + for (i = 0; i < pGroups->GroupCount; i++) + { + if (EqualSid(pGroups->Groups[i].Sid, pAdminsSid)) + { + bIsAdmin = TRUE; + break; + } + } + +done: + if (pGroups != NULL) + HeapFree(GetProcessHeap(), 0, pGroups); + + if (hToken != NULL) + CloseHandle(hToken); + + if (pAdminsSid != NULL) + FreeSid(pAdminsSid); + + return bIsAdmin; +} + static BOOL IsValidDomainName( @@ -611,6 +673,16 @@ NetIDPage_OnInitDialog( LoadStringW(hDllInstance, (pNetIdData->JoinStatus == NetSetupDomainName)? 6 : 5, szBuffer, ARRAYSIZE(szBuffer)); SetDlgItemText(hwndDlg, IDC_WORKGROUPDOMAIN, szBuffer); SetDlgItemText(hwndDlg, IDC_WORKGROUPDOMAIN_NAME, pNetIdData->JoinName); + + /* Show the administrator note and disable controls when the user is not an administator */ + if (!IsUserAdmin()) + { + LoadStringW(hDllInstance, 1021, szBuffer, ARRAYSIZE(szBuffer)); + SetDlgItemText(hwndDlg, IDC_MESSAGETEXT, szBuffer); + + EnableWindow(GetDlgItem(hwndDlg, IDC_NETWORK_ID), FALSE); + EnableWindow(GetDlgItem(hwndDlg, IDC_NETWORK_PROPERTY), FALSE); + } } static
