asp-classic.md

title	name	image	tags	snippets
ASP Classic Tutorial	ASP Classic	/media/platforms/asp-classic.jpg	quickstart	setup use server-platforms/asp-classic/setup server-platforms/asp-classic/use

ASP Classic Tutorial

Please follow the steps below to configure your existing ASP.Net Classic WebApp to use it with Auth0.

1. Showing the Login Widget

First, we need to create the default.asp which will show the Login Widget from Auth0.

${snippet(meta.snippets.setup)}

After logging in with any provider, Auth0 will redirect the user to /callback.asp.

2. Processing the callback response

We need to add the handler for the Auth0 callback so that we can authenticate the user and get his information. For that, we'll create the callback.asp file.

It will implement the basic OAuth 2 flow:

1. Exchanges the code for an access_token
2. Calls the Userinfo endpoint to get the current logged in user profile using the access_token as credentials.

${snippet(meta.snippets.use)}

Function GetUserProfile(access_token)

  Set http = Server.CreateObject("MSXML2.ServerXMLHTTP")

  http.open "GET", "https://eugeniop.auth0.com/userinfo?access_token=" & access_token, False

  http.send

  profile = http.responseText

  Set GetUserProfile = JSON.parse(profile)

  Set http = Nothing

End Function


Function GetAccessToken(client_id, client_secret, redirect_uri, authorization_code)

  Set http = Server.CreateObject("MSXML2.ServerXMLHTTP")

  http.open "POST", "https://eugeniop.auth0.com/oauth/token", False

  http.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"

  http.send "client_id=" & client_id & "&client_secret=" & client_secret & "&redirect_uri=" & server.UrlEncode(redirect_uri) & "&code=" & authorization_code & "&grant_type=authorization_code"

  result = http.responseText

  Set http = Nothing

  set jsonResult = JSON.parse(result)

  GetAccessToken = jsonresult.access_token

End Function

<%= '%\>' %>

3. You're done!

You have configured your ASP.Net Classic Webapp to use Auth0. Congrats, you're awesome!