(Xojo Plugin) Duo Auth API - Preauth

See more Duo Auth MFA Examples

The /preauth endpoint determines whether a user is authorized to log in, and (if so) returns the user's available authentication factors.

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

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

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim integrationKey As String
integrationKey = "DIMS3V5QDVG9J9ABRXC4"
Dim secretKey As String
secretKey = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

Dim http As New Chilkat.Http

http.Accept = "application/json"

// Use your own hostname here:
Dim url As String
url = "https://api-a03782e1.duosecurity.com/auth/v2/preauth"

// 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

Dim req As New Chilkat.HttpRequest
req.AddParam "username","matt"

Dim resp As Chilkat.HttpResponse
resp = http.PostUrlEncoded(url,req)
If (http.LastMethodSuccess = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

System.DebugLog("status code = " + Str(resp.StatusCode))

Dim json As New Chilkat.JsonObject
Dim success As Boolean
success = json.Load(resp.BodyStr)
json.EmitCompact = False
System.DebugLog(json.Emit())

// Sample successful output:

// status code = 200

// {
//   "response": {
//     "devices": [
//       {
//         "capabilities": [
//           "auto",
//           "push",
//           "sms",
//           "mobile_otp"
//         ],
//         "device": "DP6GYVTQ5NK82BMR851F",
//         "display_name": "iOS (XXX-XXX-1871)",
//         "name": "",
//         "number": "XXX-XXX-1871",
//         "type": "phone"
//       }
//     ],
//     "result": "auth",
//     "status_msg": "Account is active"
//   },
//   "stat": "OK"
// }

// Sample code to parse the above JSON response..

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

Dim device As String
Dim display_name As String
Dim name As String
Dim number As String
Dim v_type As String
Dim j As Int32
Dim count_j As Int32
Dim strVal As String

Dim responseResult As String
responseResult = json.StringOf("response.result")
Dim responseStatus_msg As String
responseStatus_msg = json.StringOf("response.status_msg")
Dim stat As String
stat = json.StringOf("stat")
Dim i As Int32
i = 0
Dim count_i As Int32
count_i = json.SizeOfArray("response.devices")
While i < count_i
    json.I = i
    device = json.StringOf("response.devices[i].device")
    display_name = json.StringOf("response.devices[i].display_name")
    name = json.StringOf("response.devices[i].name")
    number = json.StringOf("response.devices[i].number")
    v_type = json.StringOf("response.devices[i].type")
    j = 0
    count_j = json.SizeOfArray("response.devices[i].capabilities")
    While j < count_j
        json.J = j
        strVal = json.StringOf("response.devices[i].capabilities[j]")
        j = j + 1
    Wend
    i = i + 1
Wend