CODEWITHSUNDEEP
asp.netvb.netopeniddotnetopenauth
Adeel Aslam
Adeel Aslam

Reputation: 1294

How to get email from Google OpenID Provider (in VB)

Salam to all
I am using the DotNetOpenAuth control for authentication from google. This is the code that I am using.

<rp:OpenIdLogin ID="OID" runat=server Identifier="https://www.google.com/accounts/o8/id" RequestEmail="Require" ></rp:OpenIdLogin>

To get the response from the provider for the email ID I am using this code in the page load event of default.aspx

 Public Email As String = "N/A"

    Public FullName As String = "N/A"

    Public Country As String = "N/A"

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load

        Dim openid As OpenIdRelyingParty = New OpenIdRelyingParty
        Dim response = openid.GetResponse
        If (Not (response) Is Nothing) Then
            Select Case (response.Status)
                Case AuthenticationStatus.Authenticated
                    Dim fetch = response.GetExtension
                    Dim email As String = String.Empty
                    If (Not (fetch) Is Nothing) Then
                        email = fetch.GetAttributeValue(WellKnownAttributes.Contact.Email)
                    End If
                    FormsAuthentication.RedirectFromLoginPage(response.ClaimedIdentifier, False)
            End Select
        End If


    End Sub

I am able be authenticated with google, but there is no response of the email id from google.
Please tell me what exactly I am missing that is causing this problem.

Update

  <configSections>
    <section name="dotNetOpenAuth" type="DotNetOpenAuth.Configuration.DotNetOpenAuthSection" requirePermission="false" allowLocation="true"/>
  </configSections>
  <dotNetOpenAuth>
    <openid>
      <relyingParty>
        <behaviors>
          <!-- The following OPTIONAL behavior allows RPs to use SREG only, but be compatible
                    with OPs that use Attribute Exchange (in various formats). -->
          <add type="DotNetOpenAuth.OpenId.Behaviors.AXFetchAsSregTransform, DotNetOpenAuth" />
        </behaviors>
      </relyingParty>
    </openid>
  </dotNetOpenAuth>

Upvotes: 2

Views: 1448

Answers (1)

Andrew Arnott
Andrew Arnott

Reputation: 81801

You're likely missing the appropriate "behavior" in your web.config file. Please study this page and apply it to your site: https://github.com/DotNetOpenAuth/DotNetOpenAuth/wiki/Enhancements

Also, when using this behavior, you should be looking for the ClaimsResponse extension in the positive authentication response rather than FetchResponse.

As a side note, you have a lot of boilerplate code in your code-behind's Page_Load method that you don't need. The OpenIdControl you're using has a LoggedIn method that does most of what you're doing here (it gets you all the way to the body of your Case block.

Upvotes: 2

Related Questions