DeployLX Software Protection System

LicenseServer..::..RecordDeactivation Method

Called by Deactivate(ServerRequestContext, ActivationLimit, DeactivationPhase, String) after the license has been deactivated. When overridden by a derived class, stores the deactivation information in a database or other persistent storage.

Syntax

Protected Overridable Sub RecordDeactivation ( _
	context As ServerRequestContext, _
	limit As ActivationLimit, _
	profile As ActivationProfile _
)
protected virtual void RecordDeactivation(
	ServerRequestContext context,
	ActivationLimit limit,
	ActivationProfile profile
)

Parameters

context
Reference to a ServerRequestContext for the current request.
limit
Reference to the context cast to an ActivationLimit
profile
The profile that was selected for deactivation.

Remarks

Note If you make changes to the original license that should be sent back to the client you must call NotifyModification(Limit) to ensure those changes are sent.

Values of the Properties Collection

VariableDescription
MachineProfile The client machine's profile hash. Same as passed in the machineProfileHash parameter.
MachineProfile.Absolute The client machine's profile hash. The actual profile of the machine if the MachineProfile entry was overridden.
LicensedType The full name of the Type being validated including namespace.
LicensedAssemblyThe full name of the assembly being validated.
LicensedAssemblyNameThe display (or short) name of the assembly being validated. Does not include the version or culture information.
LicensedAssemblyVersionThe version of the assembly being validated.
IsServiceRequestIndicates if the validating process is a Windows service or an ASP.NET XML Web Service.
IsWebRequestIndicates if the validating process is an ASP.NET application (but not an ASP.NET XML Web Service).
IsManagerRequestIndicates if the request originated from the DeployLX Manager and not from the client machine.
* Additional values may be included by the limit that initiated the request. Check the documentation of the limit to see if any other values can be included with the server request.

Examples

This sample demonstrates a very basic implementation of a license server's Deactivate method. For complete information on license servers see the License Servers in DeployLX Licensing topic.

Visual Basic
<%@ WebService Language="VB"  Class="MyLicenseServer" %>
Imports System
Imports System.IO
Imports System.Collections
Imports DeployLX.Licensing.v5
Imports DeployLX.Licensing.Management.v5

<System.Web.Services.WebService(Namespace:="http://www.xheo.com/licensing/v3_0")> _
Public Class MyLicenseServer
    Inherits DeployLX.Licensing.Management.v5.LicenseServer

...

    Protected Overrides Function CanDeactivate(ByVal context As ServerRequestContext, ByVal limit As ActivationLimit, ByVal phase As DeactivationPhase, ByRef suggestedProfile As ActivationProfile) As Boolean
        If FileContains("ActivatedSerials.dat", context.SerialNumber) Then
            Return True
        End If
        Return False
    End Function

    Protected Overrides Sub RecordDeactivation(ByVal context As ServerRequestContext, ByVal limit As ActivationLimit, ByVal profile As ActivationProfile)
        AddToFile("DeactivatedSerials.dat", context.SerialNumber)
    End Sub

...

    Private Shared Sub AddToFile(ByVal path As String, ByVal serialNumber As String)
        If FileContains(path, serialNumber) Then
            Return
        End If

        Using writer As New StreamWriter(path, True)
            writer.WriteLine(serialNumber)
        End Using
    End Sub

    Private Shared Function FileContains(ByVal path As String, ByVal serialNumber As String) As Boolean
        Using reader As New StreamReader(path)

            Dim line As String = reader.ReadLine()
            If line.Contains(serialNumber) Then
                Return True
            End If
        End Using

        Return False
    End Function
End Class
C#
<%@ WebService Language="C#"  Class="MyLicenseServer" %>
using System;
using System.IO;
using System.Collections;
using DeployLX.Licensing.v5;
using DeployLX.Licensing.Management.v5;

[System.Web.Services.WebService( Namespace="http://www.xheo.com/licensing/v3_0" ) ]
public class MyLicenseServer : DeployLX.Licensing.Management.v5.LicenseServer
{

...


    protected override bool CanDeactivate( ServerRequestContext context, ActivationLimit limit, DeactivationPhase phase, ref ActivationProfile suggestedProfile )
    {
        if( FileContains( "ActivatedSerials.dat", context.SerialNumber ) )
            return true;
        return false;
    }

    protected override void RecordDeactivation( ServerRequestContext context, ActivationLimit limit, ActivationProfile profile )
    {
        AddToFile( "DeactivatedSerials.dat", context.SerialNumber );
    }

...

    private static void AddToFile( string path, string serialNumber )
    {
        if( FileContains( path, serialNumber ) )
            return;

        using( StreamWriter writer = new StreamWriter( path, true ) )
            writer.WriteLine( serialNumber );
    }

    private static bool FileContains( string path, string serialNumber )
    {
        using( StreamReader reader = new StreamReader( path ) )
        {

            string line = reader.ReadLine();
            if( line.Contains( serialNumber ) )
                return true;
        }

        return false;
    }
}

Assembly:  DeployLX.Licensing.Management.v5 (in DeployLX.Licensing.Management.v5.dll)

See Also