WatiN LogonDialogHandlers 在 Windows 7 中无法正常工作

Question

我最近更新到了Windows 7、VS2010和IE8。我们有一个自动化套件，使用 WatiN 对 IE 运行测试。这些测试需要使用登录对话框处理程序，以便将不同的 AD 用户登录到 IE 浏览器中。

这在使用 Windows XP 和 IE8 时效果很好，但现在使用 Windows 7 导致 Windows 安全对话框不再被识别，该对话框只是被忽略。这是用于启动浏览器的方法：

        public static Browser StartBrowser(string url, string username, string password)
        {
            Browser browser = new IE();
            WatiN.Core.DialogHandlers.LogonDialogHandler ldh = new WatiN.Core.DialogHandlers.LogonDialogHandler(username, password);
            browser.DialogWatcher.Add(ldh);
            browser.GoTo(url);
            return browser;
        }

任何建议或帮助将不胜感激......

Answer 1

无论出于何种原因，克林特发布的代码都有注释，而不是输入用户名、密码和提交，并引用了未定义的方法，但其他方面都正常。这是一些已完成（且有效）的代码：

    public static Browser Win7Login(string username, string password, string URL) {
        Process ieProcess = Process.Start("iexplore.exe", URL);
        ieProcess.WaitForInputIdle();

        Thread.Sleep(2000);

        AutomationElement ieWindow = AutomationElement.FromHandle(ieProcess.MainWindowHandle);
        string t = ieWindow.Current.ClassName.ToString();

        Condition conditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                   new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Window));
        Condition List_condition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                        new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ListItem));
        Condition Edit_condition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                    new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));
        Condition button_conditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                     new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button));

        AutomationElementCollection c = ieWindow.FindAll(TreeScope.Children, conditions);
        foreach (AutomationElement child in c) {
            if (child.Current.ClassName.ToString() == "#32770") {
                // find the list
                AutomationElementCollection lists = child.FindAll(TreeScope.Children, List_condition);
                // find the buttons
                AutomationElementCollection buttons = child.FindAll(TreeScope.Children, button_conditions);

                foreach (AutomationElement list in lists) {
                    if (list.Current.ClassName.ToString() == "UserTile") {
                        AutomationElementCollection edits = list.FindAll(TreeScope.Children, Edit_condition);
                        foreach (AutomationElement edit in edits) {
                            if (edit.Current.Name.Contains("User name")) {
                                edit.SetFocus();
                                ValuePattern usernamePattern = edit.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
                                usernamePattern.SetValue(username);
                            }
                            if (edit.Current.Name.Contains("Password")) {
                                edit.SetFocus();
                                ValuePattern passwordPattern = edit.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
                                passwordPattern.SetValue(password);
                            }
                        }
                    }
                }
                foreach (AutomationElement button in buttons) {
                    if (button.Current.AutomationId == "SubmitButton") {
                        InvokePattern submitPattern = button.GetCurrentPattern(InvokePattern.Pattern) as InvokePattern;
                        submitPattern.Invoke();
                        break;
                    }
                }
            }
        }
        return IE.AttachTo<IE>(Find.By("hwnd", ieWindow.Current.NativeWindowHandle.ToString()), 30);
    }

Answer 2

这也可以重构为 DialogHandler，如下所示：

public class Windows7LogonDialogHandler : BaseDialogHandler
{
    private readonly string _username;
    private readonly string _password;
    AndCondition _conditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                   new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Window));

    readonly AndCondition _listCondition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                    new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ListItem));

    readonly AndCondition _editCondition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));

    readonly AndCondition _buttonConditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                 new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button));

    public Windows7LogonDialogHandler(string username, string password)
    {
        _username = username;
        _password = password;
    }

    public override bool HandleDialog(Window window)
    {
        if(CanHandleDialog(window))
        {
            var win = AutomationElement.FromHandle(window.Hwnd);
            var lists = win.FindAll(TreeScope.Children, _listCondition);
            var buttons = win.FindAll(TreeScope.Children, _buttonConditions);
            var another = (from AutomationElement list in lists
                           where list.Current.ClassName == "UserTile"
                           where list.Current.Name == "Use another account"
                           select list).First();
            another.SetFocus();

            foreach (var edit in from AutomationElement list in lists
                                 where list.Current.ClassName == "UserTile"
                                 select list.FindAll(TreeScope.Children, _editCondition)
                                     into edits
                                     from AutomationElement edit in edits
                                     select edit)
            {
                if (edit.Current.Name.Contains("User name"))
                {
                    edit.SetFocus();
                    var usernamePattern = edit.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
                    if (usernamePattern != null) usernamePattern.SetValue(_username);
                }
                if (edit.Current.Name.Contains("Password"))
                {
                    edit.SetFocus();
                    var passwordPattern = edit.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
                    if (passwordPattern != null) passwordPattern.SetValue(_password);
                }
            }
            foreach (var submitPattern in from AutomationElement button in buttons
                                          where button.Current.AutomationId == "SubmitButton"
                                          select button.GetCurrentPattern(InvokePattern.Pattern) as InvokePattern)
            {
                submitPattern.Invoke();
                break;
            }
            return true;
        }
        return false;
    }

    public override bool CanHandleDialog(Window window)
    {
        return window.ClassName == "#32770";
    }
}

这更好一点。然后你可以像这样使用它：

using(var ie = new IE())
        {
            ie.DialogWatcher.Add(new Windows7LogonDialogHandler(@"domain\user", "password"));
            ie.GoTo("http://mysecuredwebsite");
        }

Answer 3

我们最终通过使用 Windows Automation 3.0 API 来拾取对话框并处理登录来解决了这个问题。具体操作如下：

1. 启动 IE 进程并将其分配给 AutomationElement
2. 您现在可以遍历IEFrame 的子元素，选取用户名和密码编辑字段。
3. 然后发送用户名和密码

浏览器经过身份验证后，我们将其附加到 WatiN IE 浏览器对象。代码如下：

        public static Browser LoginToBrowser(string UserName, string Password, string URL)
    {

        AutomationElement element = StartApplication("IEXPLORE.EXE", URL);
        Thread.Sleep(2000);
        string t = element.Current.ClassName.ToString();

             Condition conditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                        new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Window));
            Condition List_condition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                            new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ListItem));
            Condition Edit_condition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                        new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));
            Condition button_conditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                         new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button));

        AutomationElementCollection c = element.FindAll(TreeScope.Children, conditions);
        foreach (AutomationElement child in c)
        {
            if (child.Current.ClassName.ToString() == "#32770")
            {
                //find the list
                AutomationElementCollection lists = child.FindAll(TreeScope.Children, List_condition);
                // find the buttons
                AutomationElementCollection buttons = child.FindAll(TreeScope.Children, button_conditions);

                foreach (AutomationElement list in lists)
                {
                    if (list.Current.ClassName.ToString() == "UserTile")
                    {
                        AutomationElementCollection edits = list.FindAll(TreeScope.Children, Edit_condition);
                        foreach (AutomationElement edit in edits)
                        {
                            if (edit.Current.Name.Contains("User name"))
                            {
                                edit.SetFocus();
                                //send the user name
                            }
                            if (edit.Current.Name.Contains("Password"))
                            {
                                edit.SetFocus();
                                //send the password
                            }
                        }
                    }
                }
                foreach (AutomationElement button in buttons)
                {
                    if (button.Current.AutomationId == "SubmitButton")
                    {
                        //click the button 
                        break;
                    }
                }
            }            
        }
        return IE.AttachToIE(Find.By("hwnd", element.Current.NativeWindowHandle.ToString()), 30) ;
    }

我们确实使用了一个名为 UI Spy 的工具来检查 Windows UI。如果您针对 XP 和 Win7 运行它，您可以清楚地看到 Windows 安全对话框的结构在这 2 个操作系统之间发生了怎样的变化。

Answer 4

Nicholas Riley 的帖子很有魅力，但是使用 System.Windows.Automation 可能有点棘手。我以为微软会把这个放在 GAC 中，但他们没有，至少对我运行 Windows 7 专业版来说是这样。我什至从 这里。

事实证明，这里有一个关于堆栈溢出的主题，它显示了 dll 的位置，您可以浏览这些 dll 以将其作为引用包含在项目中。其链接位于此处。

本质上，您只需要引用两个 dll 即可。 UIAutomationClient.dll 和 UIAutomationTypes.dll（均位于同一目录中）。

Answer 5

既然没有人回答你的问题，我会的，但不幸的是没有现成的解决方案。

我目前没有 Windows 7 可以尝试，但似乎 WatiN 的 LogonDialogHandler 与 Windows 7 不兼容，所以你必须编写自己的 DialogHandler。最简单的方法是继承BaseDialogHandler。您可以查看 WatiN 中现有对话框处理程序的源代码。我让自己变得非常简单，而不是通用的处理 证书对话框。 WinSpy++ 在实施过程中非常有用。

Answer 6

如果您将运行您的 watin 的任何进程设置为在 Windows 7 中以管理员身份运行，则 DialogHandler 可以正常工作。

Answer 7

我尝试使用上面的两个自动化示例，发现它们无法处理记住其他凭据的情况，在这种情况下，您只能在框中看到密码。在这种情况下，您需要以编程方式单击“使用其他帐户”部分。因此，我修改了提供的代码来执行此操作，现在工作正常。这是修改后的代码：

public static Browser Win7Login(string username, string password, string url)
    {
        var ieProcess = Process.Start("iexplore.exe", url);
        ieProcess.WaitForInputIdle();

        Thread.Sleep(2000);

        var ieWindow = AutomationElement.FromHandle(ieProcess.MainWindowHandle);

        var conditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                   new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Window));
        var listCondition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                        new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.ListItem));
        var editCondition = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                    new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));
        var buttonConditions = new AndCondition(new PropertyCondition(AutomationElement.IsEnabledProperty, true),
                                     new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button));

        var c = ieWindow.FindAll(TreeScope.Children, conditions);

        foreach (AutomationElement child in c)
        {
            if (child.Current.ClassName == "#32770")
            {
                // find the list
                var lists = child.FindAll(TreeScope.Children, listCondition);
                // find the buttons
                var buttons = child.FindAll(TreeScope.Children, buttonConditions);

                var another = (from AutomationElement list in lists
                              where list.Current.ClassName == "UserTile"
                              where list.Current.Name == "Use another account"
                              select list).First();

                another.SetFocus();

                foreach (var edit in from AutomationElement list in lists
                                                   where list.Current.ClassName == "UserTile"
                                                   select list.FindAll(TreeScope.Children, editCondition)
                                                   into edits from AutomationElement edit in edits select edit)
                {
                    if (edit.Current.Name.Contains("User name"))
                    {
                        edit.SetFocus();
                        var usernamePattern = edit.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
                        if (usernamePattern != null) usernamePattern.SetValue(username);
                    }
                    if (edit.Current.Name.Contains("Password"))
                    {
                        edit.SetFocus();
                        var passwordPattern = edit.GetCurrentPattern(ValuePattern.Pattern) as ValuePattern;
                        if (passwordPattern != null) passwordPattern.SetValue(password);
                    }
                }
                foreach (var submitPattern in from AutomationElement button in buttons
                                                        where button.Current.AutomationId == "SubmitButton"
                                                        select button.GetCurrentPattern(InvokePattern.Pattern) as InvokePattern)
                {
                    submitPattern.Invoke();
                    break;
                }
            }
        }
        return IE.AttachTo<IE>(Find.By("hwnd", ieWindow.Current.NativeWindowHandle.ToString()), 30);
    }

感谢其他人帮助我完成了大部分工作。