1 files changed, 183 insertions, 0 deletions
diff --git a/main.cpp b/main.cpp
new file mode 100644
index 0000000..322626c
--- /dev/null
+++ b/main.cpp
@@ -0,0 +1,183 @@
+#include "error.h"
+#include "os.h"
+#include "process.h"
+#include "resource_ids.h"
+#include "sid.h"
+#include "token.h"
+
+#include <Windows.h>
+#include <CommCtrl.h>
+#include <windowsx.h>
+
+#include <string>
+
+#pragma comment(linker, "/manifestdependency:\"type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
+
+bool is_user_in_administrators()
+{
+    const auto token = token::impersonate(
+        token::get_linked(
+            token::open_for_current_process(token::permissions::query() | token::permissions::duplicate())));
+
+    return token::belongs(token, sid::builtin_administrators());
+}
+
+bool is_run_as_administrator()
+{
+    return token::belongs(token::dumb(), sid::builtin_administrators());
+}
+
+bool is_elevated()
+{
+    return token::is_elevated(token::open_for_current_process());
+}
+
+void set_label(HWND root, int id, bool val)
+{
+    const auto label = GetDlgItem(root, id);
+    SetWindowTextW(label, val ? L"True" : L"False");
+}
+
+void set_label(HWND root, int id, const std::wstring& s)
+{
+    const auto label = GetDlgItem(root, id);
+    SetWindowTextW(label, s.c_str());
+}
+
+BOOL on_init_dialog(HWND wnd, HWND, LPARAM)
+{
+    try
+    {
+        set_label(wnd, IDC_STATIC_IS_ADMIN, is_user_in_administrators());
+    }
+    catch (const Error& e)
+    {
+        set_label(wnd, IDC_STATIC_IS_ADMIN, L"N/A");
+        error::report(e);
+    }
+
+    try
+    {
+        set_label(wnd, IDC_STATIC_IS_RUN_AS_ADMIN, is_run_as_administrator());
+    }
+    catch (const Error& e)
+    {
+        set_label(wnd, IDC_STATIC_IS_RUN_AS_ADMIN, L"N/A");
+        error::report(e);
+    }
+
+    if (os::is_vista_or_later())
+    {
+        try
+        {
+            const auto elevated = is_elevated();
+            set_label(wnd, IDC_STATIC_IS_ELEVATED, elevated);
+
+            const auto elevate_button = GetDlgItem(wnd, IDC_BUTTON_ELEVATE);
+            Button_SetElevationRequiredState(elevate_button, !elevated);
+        }
+        catch (const Error& e)
+        {
+            set_label(wnd, IDC_STATIC_IS_ELEVATED, L"N/A");
+            error::report(e);
+        }
+
+        try
+        {
+            set_label(wnd, IDC_STATIC_INTEGRITY_LEVEL, token::integrity_level_to_string(
+                token::query_integrity_level(token::open_for_current_process())));
+        }
+        catch (const Error& e)
+        {
+            set_label(wnd, IDC_STATIC_INTEGRITY_LEVEL, L"N/A");
+            error::report(e);
+        }
+    }
+    else
+    {
+        set_label(wnd, IDC_STATIC_IS_ELEVATED, L"N/A");
+        set_label(wnd, IDC_STATIC_INTEGRITY_LEVEL, L"N/A");
+    }
+
+    return TRUE;
+}
+
+void on_command(HWND wnd, int id, HWND, unsigned int)
+{
+    switch (id)
+    {
+        case IDC_BUTTON_ELEVATE:
+        {
+            bool as_admin = false;
+            try
+            {
+                as_admin = is_run_as_administrator();
+            }
+            catch (const Error& e)
+            {
+                error::report(e);
+                break;
+            }
+
+            if (as_admin)
+            {
+                MessageBoxW(wnd, L"Already elevated!", L"Elevation", MB_OK);
+                break;
+            }
+
+            try
+            {
+                process::runas(process::get_executable_path());
+            }
+            catch (const Error& e)
+            {
+                if (error::get_code(e) != ERROR_CANCELLED)
+                    error::report(e);
+                break;
+            }
+
+            EndDialog(wnd, 1);
+            break;
+        }
+
+        case IDOK:
+        case IDCANCEL:
+            EndDialog(wnd, 0);
+            break;
+    }
+}
+
+void on_close(HWND wnd)
+{
+    EndDialog(wnd, 0);
+}
+
+INT_PTR CALLBACK dialog_main(
+    HWND wnd,
+    UINT msg,
+    WPARAM wParam,
+    LPARAM lParam)
+{
+    switch (msg)
+    {
+        HANDLE_MSG(wnd, WM_INITDIALOG, on_init_dialog);
+        HANDLE_MSG(wnd, WM_COMMAND, on_command);
+        HANDLE_MSG(wnd, WM_CLOSE, on_close);
+
+        default:
+            return FALSE;
+    }
+}
+
+int APIENTRY wWinMain(
+    HINSTANCE instance,
+    HINSTANCE,
+    wchar_t*,
+    int)
+{
+    return static_cast<int>(DialogBox(
+        instance,
+        MAKEINTRESOURCE(IDD_MAINDIALOG),
+        NULL,
+        dialog_main));
+}