(Classic ASP) Duo Auth API - Async Auth

See more Duo Auth MFA Examples

If you enable async, then your application will be able to retrieve real-time status updates from the authentication process, rather than receiving no information until the process is complete.

Note: This example requires Chilkat v9.5.0.89 or greater.

For more information, see https://duo.com/docs/authapi#/auth_status

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<%
' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

integrationKey = "DIMS3V5QDVG9J9ABRXC4"
secretKey = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Http")
set http = Server.CreateObject("Chilkat.Http")

http.Accept = "application/json"

' Use your own hostname here:
url = "https://api-a03782e1.duosecurity.com/auth/v2/auth"

' This example requires Chilkat v9.5.0.89 or greater because Chilkat will automatically
' generate and send the HMAC signature for the requires based on the integration key and secret key.
http.Login = integrationKey
http.Password = secretKey

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.HttpRequest")
set req = Server.CreateObject("Chilkat.HttpRequest")
req.AddParam "username","matt"
req.AddParam "factor","push"
' The device ID can be obtained from the preauth response.  See Duo Preauth Example
req.AddParam "device","DP6GYVTQ5NK82BMR851F"
' Add the async param to get an immediate response, then periodically check for updates to find out when the MFA authentication completes for fails.
req.AddParam "async","1"

' resp is a Chilkat.HttpResponse
Set resp = http.PostUrlEncoded(url,req)
If (http.LastMethodSuccess = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "status code = " & resp.StatusCode) & "</pre>"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set json = Server.CreateObject("Chilkat.JsonObject")
success = json.Load(resp.BodyStr)
json.EmitCompact = 0
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

If (resp.StatusCode <> 200) Then

    Response.End
End If

' Sample successful output:

' status code = 200

' {
'   "stat": "OK",
'   "response": {
'     "txid": "45f7c92b-f45f-4862-8545-e0f58e78075a"
'   }
' }

txid = json.StringOf("response.txid")

' Use your own hostname here:
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbUrl = Server.CreateObject("Chilkat.StringBuilder")
success = sbUrl.Append("https://api-a03782e1.duosecurity.com/auth/v2/auth_status?txid=")
success = sbUrl.Append(txid)

Response.Write "<pre>" & Server.HTMLEncode( "Auth status URL: " & sbUrl.GetAsString()) & "</pre>"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbResult = Server.CreateObject("Chilkat.StringBuilder")

' Wait for a response...
i = 0
maxWaitIterations = 100
Do While i < maxWaitIterations
    ' Wait 3 seconds.
    http.SleepMs 3000

    Response.Write "<pre>" & Server.HTMLEncode( "Polling...") & "</pre>"

    ' resp is a Chilkat.HttpResponse
    Set resp = http.QuickRequest("GET",sbUrl.GetAsString())
    If (http.LastMethodSuccess = 0) Then
        Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
        Response.End
    End If

    If (resp.StatusCode <> 200) Then
        Response.Write "<pre>" & Server.HTMLEncode( "error status code = " & resp.StatusCode) & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( resp.BodyStr) & "</pre>"
        Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"

        Response.End
    End If

    ' Sample response:

    ' 	{
    ' 	  "stat": "OK",
    ' 	  "response": {
    ' 	    "result": "waiting",
    ' 	    "status": "pushed",
    ' 	    "status_msg": "Pushed a login request to your phone..."
    ' 	  }
    ' 	}

    success = json.Load(resp.BodyStr)

    ' The responseResult can be "allow", "deny", or "waiting"
    sbResult.Clear 
    success = json.StringOfSb("response.result",sbResult)
    responseStatus = json.StringOf("response.status")
    responseStatus_msg = json.StringOf("response.status_msg")

    Response.Write "<pre>" & Server.HTMLEncode( sbResult.GetAsString()) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( responseStatus) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( responseStatus_msg) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "") & "</pre>"

    If (sbResult.ContentsEqual("waiting",1) = 1) Then
        i = i + 1
    Else
        ' Force loop exit..
        i = maxWaitIterations
    End If

Loop

Response.Write "<pre>" & Server.HTMLEncode( "Finished.") & "</pre>"

%>
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