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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "remoting/host/verify_config_window_win.h"
#include <atlbase.h>
#include <atlwin.h>
#include <windows.h>
#include "base/base64.h"
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/utf_string_conversions.h"
#include "remoting/host/pin_hash.h"
#include "remoting/host/win/core_resource.h"
#include "remoting/protocol/authentication_method.h"
namespace remoting {
VerifyConfigWindowWin::VerifyConfigWindowWin(const std::string& email,
const std::string& host_id, const std::string& host_secret_hash)
: email_(email),
host_id_(host_id),
host_secret_hash_(host_secret_hash) {
}
void VerifyConfigWindowWin::OnCancel(UINT code, int id, HWND control) {
EndDialog(ERROR_CANCELLED);
}
void VerifyConfigWindowWin::OnClose() {
EndDialog(ERROR_CANCELLED);
}
LRESULT VerifyConfigWindowWin::OnInitDialog(HWND wparam, LPARAM lparam) {
// Set the small window icon.
if (icon_.LoadIcon(IDD, ::GetSystemMetrics(SM_CXSMICON),
::GetSystemMetrics(SM_CYSMICON)) != NULL) {
SetIcon(icon_, FALSE);
}
CenterWindow();
// TODO(simonmorris): l10n.
SetWindowText(L"Chrome Remote Desktop");
CWindow email_label(GetDlgItem(IDC_EMAIL_LABEL));
email_label.SetWindowText(L"Account:");
CWindow pin_label(GetDlgItem(IDC_PIN_LABEL));
pin_label.SetWindowText(L"PIN:");
CWindow ok_button(GetDlgItem(IDOK));
ok_button.SetWindowText(L"Confirm");
CWindow cancel_button(GetDlgItem(IDCANCEL));
cancel_button.SetWindowText(L"Cancel");
CWindow message_text(GetDlgItem(IDC_MESSAGE));
message_text.SetWindowText(L"Please confirm your account and PIN below to "
L"allow access by Chrome Remote Desktop.");
CWindow email_text(GetDlgItem(IDC_EMAIL));
email_text.SetWindowText(UTF8ToUTF16(email_).c_str());
return TRUE;
}
void VerifyConfigWindowWin::OnOk(UINT code, int id, HWND control) {
if (VerifyHostSecretHash()) {
EndDialog(ERROR_SUCCESS);
} else {
EndDialog(ERROR_LOGON_FAILURE);
}
}
void VerifyConfigWindowWin::CenterWindow() {
// Get the window dimensions.
RECT rect;
if (!GetWindowRect(&rect)) {
return;
}
// Center against the owner window unless it is minimized or invisible.
HWND owner = ::GetWindow(m_hWnd, GW_OWNER);
if (owner != NULL) {
DWORD style = ::GetWindowLong(owner, GWL_STYLE);
if ((style & WS_MINIMIZE) != 0 || (style & WS_VISIBLE) == 0) {
owner = NULL;
}
}
// Make sure that the window will not end up split by a monitor's boundary.
RECT area_rect;
if (!::SystemParametersInfo(SPI_GETWORKAREA, NULL, &area_rect, NULL)) {
return;
}
// On a multi-monitor system use the monitor where the owner window is shown.
RECT owner_rect = area_rect;
if (owner != NULL && ::GetWindowRect(owner, &owner_rect)) {
HMONITOR monitor = ::MonitorFromRect(&owner_rect, MONITOR_DEFAULTTONEAREST);
if (monitor != NULL) {
MONITORINFO monitor_info = {0};
monitor_info.cbSize = sizeof(monitor_info);
if (::GetMonitorInfo(monitor, &monitor_info)) {
area_rect = monitor_info.rcWork;
}
}
}
LONG width = rect.right - rect.left;
LONG height = rect.bottom - rect.top;
LONG x = (owner_rect.left + owner_rect.right - width) / 2;
LONG y = (owner_rect.top + owner_rect.bottom - height) / 2;
x = std::max(x, area_rect.left);
x = std::min(x, area_rect.right - width);
y = std::max(y, area_rect.top);
y = std::min(y, area_rect.bottom - width);
SetWindowPos(NULL, x, y, -1, -1, SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);
}
bool VerifyConfigWindowWin::VerifyHostSecretHash() {
CWindow pin_edit(GetDlgItem(IDC_PIN));
// Get the PIN length.
int pin_length = pin_edit.GetWindowTextLength();
scoped_array<char16> pin(new char16[pin_length + 1]);
// Get the PIN making sure it is NULL terminated even if an error occurs.
int result = pin_edit.GetWindowText(pin.get(), pin_length + 1);
pin[std::min(result, pin_length)] = 0;
return VerifyHostPinHash(host_secret_hash_, host_id_, UTF16ToUTF8(pin.get()));
}
} // namespace remoting
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