Integrating Security Roles into Microsoft Silverlight Applications 11/27/2018 1:45 AM DEV356 Integrating Security Roles into Microsoft Silverlight Applications Dan Wahlin Wahlin Consulting © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Agenda Silverlight Security Options 11/27/2018 1:45 AM Agenda Silverlight Security Options Accessing User Identity Information Accessing User Roles Creating a SecurityManager class © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Silverlight Security Options 11/27/2018 1:45 AM Silverlight Security Options Silverlight Authentication: Windows Forms Custom Silverlight Authorization: Active Directory Groups Forms Roles Custom Roles © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Windows Authentication Options 11/27/2018 1:45 AM Windows Authentication Options Option 1: Secure page hosting Silverlight control Easiest User prompted Silverlight app secured Option 2: Secure backend services Silverlight app is anonymous Calls to service require credentials Client HTTP stack can be used © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Using the Client HTTP Stack //Set once in App.xaml.cs HttpWebRequest.RegisterPrefix("https://", WebRequestCreator.ClientHttp); .... WebClient wc = new WebClient(); wc.UseDefaultCredentials = false; wc.Credentials = new NetworkCredential("username", "password", "domain");

Agenda Securing Silverlight Applications 11/27/2018 1:45 AM Agenda Securing Silverlight Applications Accessing User Identity Information Accessing User Roles Creating a SecurityManager class © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Accessing a User's Credentials 11/27/2018 1:45 AM Accessing a User's Credentials Silverlight does not support accessing the User object directly User.Identity.Name Options for accessing the user name: initParams (be careful!) Use a service WCF RIA Services © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Passing the User Name with initParams User Name can be passed dynamically into Silverlight using initParams Be Careful! © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Using initParams <param name="initParams" value="UserName=<%=User.Identity.Name%>" /> … private void Application_Startup(object sender, StartupEventArgs e) { ProcessInitParams(e.InitParams); this.RootVisual = new MainPage(); } void ProcessInitParams(IDictionary<string, string> initParams) { if (initParams != null) { foreach (var item in initParams) { this.Resources.Add(item.Key, item.Value);

Creating a User Credentials Service 11/27/2018 1:45 AM Creating a User Credentials Service Create a User Credentials WCF/ASMX service: Service handles returning authenticated user's information No risk of a spoofed User Name as with initParams Service can return additional information such as roles WCF RIA Services does this out-of-the-box © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Returning a User Name from a Service [OperationContract] public string GetLoggedInUserName() { return new SecurityRepository() .GetUserName(OperationContext.Current); } public class SecurityRepository { public string GetUserName(OperationContext opContext) { return (opContext.ServiceSecurityContext != null && opContext.ServiceSecurityContext.WindowsIdentity != null) ? opContext.ServiceSecurityContext.WindowsIdentity.Name : null;

Accessing an Authenticated User's User Name demo © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Agenda Silverlight Security Options 11/27/2018 1:45 AM Agenda Silverlight Security Options Accessing User Identity Information Accessing User Roles Creating a SecurityManager class © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Be Careful! Accessing User Roles Options: 11/27/2018 1:45 AM Accessing User Roles Options: Pass user roles into application using initParams Create a security service operation that returns roles Be Careful! © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Returning Roles from a Service [OperationContract] public List<Role> GetRoles() { return new SecurityRepository().GetRoles(OperationContext.Current); } public class SecurityRepository { public List<Role> GetRoles(OperationContext opContext) var userName = GetUserName(opContext); //Get roles from Active Directory, Database, or elsewhere

demo Accessing User Roles 11/27/2018 1:45 AM © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Agenda Silverlight Security Options 11/27/2018 1:45 AM Agenda Silverlight Security Options Accessing User Identity Information Accessing User Roles Creating a SecurityManager class © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

11/27/2018 1:45 AM How do you access and manage user names and roles in a Silverlight application? © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Creating a SecurityManager Class 11/27/2018 1:45 AM Creating a SecurityManager Class SecurityManager class can act as client-side gateway to user credentials: Accesses user credentials asynchronously Determine user role(s) Determine access to view MVVM compliant Add to ViewModel base class through aggregation © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

The SecurityManager Class [Export(typeof(ISecurityManager))] [PartCreationPolicy(CreationPolicy.Shared)] public class SecurityManager : ISecurityManager { public event EventHandler UserSecurityLoaded; public bool IsUserSecurityLoadComplete { get; set; } public ObservableCollection<Role> UserRoles { get; set; } public string UserName { get; set; } public bool IsAdmin { get; } public bool IsInUserRole { get; } public bool IsValidUser { get; } private void GetUserSecurityDetails() {} public bool CheckUserAccessToUri(Uri uri) {} public bool UserIsInRole(string role) {} public bool UserIsInAnyRole(params string[] roles) {} }

Using the SecurityManager Class public class ViewModelBase: INotifyPropertyChanged { [Import] public ISecurityManager SecurityManager { get; set; } } public class MainPageViewModel : ViewModelBase { public MainPageViewModel() { if (!IsDesignTime) SecurityManager.UserSecurityLoaded += SecurityManagerUserSecurityLoaded; void SecurityManagerUserSecurityLoaded(object sender, EventArgs e) { IsAdmin = SecurityManager.IsAdmin; //Set INPC property UserName = SecurityManager.UserName; //Set INPC property

Creating and using a SecurityManager Class 11/27/2018 1:45 AM Creating and using a SecurityManager Class demo © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Summary Silverlight doesn’t provide direct access to user credentials 11/27/2018 1:45 AM Summary Silverlight doesn’t provide direct access to user credentials Different techniques can be used to access a user name and roles: Pass into initParams (be careful!) Access data through a security service Use WCF RIA Service's WebContext class The SecurityManager class can simplify the process of working with user credentials Handles async calls to security service Stores user credentials and provides security logic Integrates well with MVVM © 2007 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Related Content DEV209: From Zero to Silverlight in 75 Minutes Required Slide Speakers, please list the Breakout Sessions, Interactive Discussions, Labs, Demo Stations and Certification Exam that relate to your session. Also indicate when they can find you staffing in the TLC. Tech Ed North America 2010 11/27/2018 1:45 AM Related Content DEV209: From Zero to Silverlight in 75 Minutes DEV210: Microsoft Silverlight, WCF RIA Services and Your Business Objects DEV331: A Lap around Microsoft Silverlight 5 DEV386HOL: Microsoft Silverlight Data Binding DEV388HOL: Web Services and Microsoft Silverlight DEV390HOL: Using the MVVM Pattern in Microsoft Silverlight Applications © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

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Complete an evaluation on CommNet and enter to win! Tech Ed North America 2010 11/27/2018 1:45 AM Complete an evaluation on CommNet and enter to win! © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.

Tech Ed North America 2010 11/27/2018 1:45 AM © 2010 Microsoft Corporation. All rights reserved. Microsoft, Windows, Windows Vista and other product names are or may be registered trademarks and/or trademarks in the U.S. and/or other countries. The information herein is for informational purposes only and represents the current view of Microsoft Corporation as of the date of this presentation. Because Microsoft must respond to changing market conditions, it should not be interpreted to be a commitment on the part of Microsoft, and Microsoft cannot guarantee the accuracy of any information provided after the date of this presentation. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.