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Public Class CustomSecurityAssertion
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Inherits SecurityPolicyAssertion
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Private usn As String = Nothing
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Private pwd As String = Nothing
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Public Sub New()
MyBase.New()
End Sub
Public Sub New(ByVal userName As String, ByVal password As String)
10
WSE Security
MyBase.New() Me.usn = userName
Me.pwd = password
End Sub Public ReadOnly Property UserName() As String Get Return Me.usn End Get End Property Public ReadOnly Property Password() As String Get Return Me.pwd End Get End Property Public Overrides Function CreateClientInputFilter(ByVal context As _ Microsoft.Web.Services3.Design.FilterCreationContext) As _ Microsoft.Web.Services3.SoapFilter Return New ClientFilterIn(Me) End Function Public Overrides Function CreateClientOutputFilter(ByVal context As _ Microsoft.Web.Services3.Design.FilterCreationContext) As _ Microsoft.Web.Services3.SoapFilter Return New ClientFilterOut(Me) End Function Public Overrides Function CreateServiceInputFilter(ByVal context As _ Microsoft.Web.Services3.Design.FilterCreationContext) As _ Microsoft.Web.Services3.SoapFilter Return New ServiceFilterIn(Me) End Function Public Overrides Function CreateServiceOutputFilter(ByVal context As _ Microsoft.Web.Services3.Design.FilterCreationContext) As _ Microsoft.Web.Services3.SoapFilter Return Nothing
End Function
Public Overrides Sub ReadXml(ByVal reader As XmlReader, _ ByVal extensions As IDictionary(Of String, Type)) ' Was an XmlReader object passed If reader Is Nothing Then Throw New ArgumentNullException( _ "XmlReader parameter cannot be null")
Lesson 2: Custom Policies
End If ' Was an IDictionary object passed If extensions Is Nothing Then Throw New ArgumentNullException( _ "IDictionary parameter cannot be null") End If Dim elementName As String = Nothing ' Loop through extensions For Each extensionName As String In extensions.Keys ' Our extension If extensions(extensionName) Is _ GetType(CustomSecurityAssertion) Then ' Save the extension name elementName = extensionName Exit For
End If
Next
' Read the start element
reader.ReadStartElement(elementName)
' Do all other processing here, including retrieving ' custom elements and attributes if needed End Sub End Class Public Class ServiceFilterIn Inherits ReceiveSecurityFilter Private parentAssertion As CustomSecurityAssertion = Nothing Public Sub New(ByVal parentAssertion As CustomSecurityAssertion) MyBase.New(parentAssertion.ServiceActor, False) Me.parentAssertion = parentAssertion
End Sub
Public Overrides Sub ValidateMessageSecurity(ByVal envelope As _ Microsoft.Web.Services3.SoapEnvelope, _ ByVal security As Microsoft.Web.Services3.Security.Security) Dim signed As Boolean = False
Dim encrypted As Boolean = False
If Not security Is Nothing Then ' Loop through collection of signatures and encryption keys For Each element As ISecurityElement In security.Elements ' Is this an XML signature
10
WSE Security
If TypeOf element Is MessageSignature Then ' Cast to XML Signature element Dim signature As MessageSignature = _ CType(element, MessageSignature) ' Is body signed If ((SignatureOptions.IncludeSoapBody And _ signature.SignatureOptions) = _ SignatureOptions.IncludeSoapBody) Then ' Is message signed with UsernameToken If (TypeOf signature.SigningToken _ Is UsernameToken) Then signed = True End If End If End If ' Is this encrypted data If TypeOf element Is EncryptedData Then Dim encData As EncryptedData = _ CType(element, EncryptedData) encrypted = True End If Next End If If Not signed OrElse Not encrypted Then Throw New SecurityFault("Message does not contain " & _ UsernameToken and/or message isn't encrypted") End If End Sub End Class Public Class ServiceFilterOut
Inherits SendSecurityFilter
Public Sub New(ByVal parentAssertion As CustomSecurityAssertion) MyBase.New(parentAssertion.ServiceActor, False) End Sub Public Overrides Sub SecureMessage(ByVal envelope As _ Microsoft.Web.Services3.SoapEnvelope, _ ByVal security As Microsoft.Web.Services3.Security.Security) End Sub
End Class
Public Class ClientFilterIn
Inherits ReceiveSecurityFilter
Public Sub New(ByVal parentAssertion As CustomSecurityAssertion)
Lesson 2: Custom Policies
MyBase.New(parentAssertion.ServiceActor, True)
End Sub
Public Overrides Sub ValidateMessageSecurity(ByVal envelope As _
Microsoft.Web.Services3.SoapEnvelope, _
ByVal security As Microsoft.Web.Services3.Security.Security)
End Sub End Class Public Class ClientFilterOut Inherits SendSecurityFilter Private parentAssertion As CustomSecurityAssertion = Nothing Public Sub New(ByVal parentAssertion As CustomSecurityAssertion)
MyBase.New(parentAssertion.ServiceActor, True)
Me.parentAssertion = parentAssertion
End Sub
Public Overrides Sub SecureMessage(ByVal envelope As _
Microsoft.Web.Services3.SoapEnvelope, _
ByVal security As Microsoft.Web.Services3.Security.Security)
' Create token for signing and encryption
Dim userToken As New UsernameToken(parentAssertion.UserName, _
parentAssertion.Password, PasswordOption.SendPlainText)
' Add token to SOAP security header
security.Tokens.Add(userToken)
' Sign SOAP message using an XML signature object
Dim mesSignature As New MessageSignature(userToken)
security.Elements.Add(mesSignature)
' Encrypt message body
Dim encData As New EncryptedData(userToken)
' Add encrypted data to collection of signatures and
' encryption keys
security.Elements.Add(encData)
End Sub End Class //C# using using using using using using using
System;
System.Data;
System.Configuration;
System.Collections.Generic;
System.Web;
System.Xml;
Microsoft.Web.Services3;
10
WSE Security
using Microsoft.Web.Services3.Design; using Microsoft.Web.Services3.Security; using Microsoft.Web.Services3.Security.Tokens; namespace MSLearning.TK70_529.10.Lesson2 { /// <summary> /// Summary description for CustomSecurityAssertion /// </summary> public class CustomSecurityAssertion : SecurityPolicyAssertion { private string usn = null; private string pwd = null; public CustomSecurityAssertion() : base()
public CustomSecurityAssertion(string userName, string password) : base() { this.usn = userName; this.pwd = password; } public string UserName {
return this.usn; } } public string Password {
return this.pwd; } } public override SoapFilter CreateClientInputFilter(FilterCreationContext context) { return new ClientFilterIn(this); } public override SoapFilter CreateClientOutputFilter(FilterCreationContext context) { return new ClientFilterOut(this);
Lesson 2: Custom Policies
} public override SoapFilter CreateServiceInputFilter(FilterCreationContext context) { return new ServiceFilterIn(this); } public override SoapFilter CreateServiceOutputFilter(FilterCreationContext context) { return null; } public override void ReadXml(XmlReader reader,
IDictionary<string, Type> extensions)
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