David Truxall, Ph.D. Principal Consultant NuSoft Solutions

WCF Basics Create A Basic Service Error Handling Security Reliability

WCF Basics

Create A Basic Service

Error Handling

Security

Reliability

The next-generation platform for distributed systems A pillar of the Microsoft.NET Framework 3.0 Build WCF services in Visual Studio 2005 using any .NET Language Intelligent code editing, IDE Extensions for WCF, debugging, re-factoring, code snippets, etc. Runs on Microsoft Windows Vista Microsoft Windows XP Microsoft Windows Server 2003 Codename “Indigo”

The next-generation platform for distributed systems

A pillar of the Microsoft.NET Framework 3.0

Build WCF services in Visual Studio 2005 using any .NET Language

Intelligent code editing, IDE Extensions for WCF, debugging, re-factoring, code snippets, etc.

Runs on

Microsoft Windows Vista

Microsoft Windows XP

Microsoft Windows Server 2003

Codename “Indigo”

Unification of Technologies Abstraction of service code from the transport layer Interoperability WS-* specification support Service-Oriented Development Loose Coupling Developer efficiency Configuration file based Attribute based

Unification of Technologies

Abstraction of service code from the transport layer

Interoperability

WS-* specification support

Service-Oriented Development

Loose Coupling

Developer efficiency

Configuration file based

Attribute based

.asmx web services are still there Only Http

.asmx web services are still there

Only Http

Client Service Message Endpoint Endpoint Endpoint

Client Service Message Address Binding Contract (Where) (How) (What) A B C A B C A B C

Three levels of abstraction expressed in WSDL Address – Location of the service Uri Can be dynamic Binding – How to talk to the service Programmatic or config file based Contract – What the service does Interface based

Three levels of abstraction expressed in WSDL

Address – Location of the service

Uri

Can be dynamic

Binding – How to talk to the service

Programmatic or config file based

Contract – What the service does

Interface based

Consists of: Protocol Server Name Port Path Logical address does not have map to a physical file, except in IIS

Consists of:

Protocol

Server Name

Port

Path

Logical address does not have map to a physical file, except in IIS

A collection of operations that specifies what the Endpoint communicates to the outside world Identified by Name and Namespace Duplex Contracts Server can call client WSDualHttpBinding Data and Service components

A collection of operations that specifies what the Endpoint communicates to the outside world

Identified by Name and Namespace

Duplex Contracts

Server can call client

WSDualHttpBinding

Data and Service components

Specification of how the client and server will communicate Multiple endpoints possible for a service Predefined Bindings Configuration file based Custom Bindings

Specification of how the client and server will communicate

Multiple endpoints possible for a service

Predefined Bindings

Configuration file based

Custom Bindings

BasicHttpBinding WSHttpBinding WSDualHttpBinding WSFederationBinding NetTCPBinding NetPeerTCPBinding NetNamedPipeBinding NetMsmqBinding MsmqIntegrationBinding

BasicHttpBinding

WSHttpBinding

WSDualHttpBinding

WSFederationBinding

NetTCPBinding

NetPeerTCPBinding

NetNamedPipeBinding

NetMsmqBinding

MsmqIntegrationBinding

Create the contract Interfaces and implementations Data Contracts Service Contracts Host the service Configure bindings Create a client

Create the contract

Interfaces and implementations

Data Contracts

Service Contracts

Host the service

Configure bindings

Create a client

SOAP Faults CLR Exceptions converted to FaultException Strongly-typed FaultException Part of Contract Unexpected Messages UnknownMessageReceived event Attacks/Probes Out-of-date proxy

SOAP Faults

CLR Exceptions converted to FaultException

Strongly-typed FaultException

Part of Contract

Unexpected Messages

UnknownMessageReceived event

Attacks/Probes

Out-of-date proxy

Transport Level Security Message Level Security Authentication and Authorization

Transport Level Security

Message Level Security

Authentication and Authorization

Secure Sockets Layer (SSL) More efficient More configuration Interoperable with ASP.Net Web Services

Secure Sockets Layer (SSL)

More efficient

More configuration

Interoperable with ASP.Net Web Services

Certificates X.509 SOAP Message Security

Certificates

X.509

SOAP Message Security

Enterprise Active Directory Windows Authentication Windows Token Role Provider Basic Authentication Impersonation Internet SqlMembershipProvider SqlRoleProvider Windows Cardspace Authorization via Attributes [PrincipalPermission(SecurityAction.Demand, Role=&quot;WarehouseStaff&quot;)] public List<string> ListProducts() {…}

Enterprise

Active Directory

Windows Authentication

Windows Token Role Provider

Basic Authentication

Impersonation

Internet

SqlMembershipProvider

SqlRoleProvider

Windows Cardspace

Authorization via Attributes

WS-ReliableMessaging Specification No duplication Resend lost messages Sequencing Buffers and re-orders received messages Replay Detection Nonces

WS-ReliableMessaging Specification

No duplication

Resend lost messages

Sequencing

Buffers and re-orders received messages

Replay Detection

Nonces

Postings at my blog: http://dotnetjunkies.com/WebLog/davetrux/ Aaron Skonnard WCF Wiki http://pluralsight.com/wiki/default.aspx/Aaron/WindowsCommunicationFoundationWiki.html Link aggregation on TheServerSide.Net http://www.theserverside.net/tt/articles/showarticle.tss?id=WCFSpecial&asrc=EM_NLN_1081699&uid=2446223

Postings at my blog:

http://dotnetjunkies.com/WebLog/davetrux/

Aaron Skonnard WCF Wiki

http://pluralsight.com/wiki/default.aspx/Aaron/WindowsCommunicationFoundationWiki.html

Link aggregation on TheServerSide.Net

http://www.theserverside.net/tt/articles/showarticle.tss?id=WCFSpecial&asrc=EM_NLN_1081699&uid=2446223

WCF Basics Create A Basic Service Error Handling Security Reliability

WCF Basics

Create A Basic Service

Error Handling

Security

Reliability