(DataFlex) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    String sIntegrationKey
    String sSecretKey
    Handle hoHttp
    String sUrl
    Variant vReq
    Handle hoReq
    Variant vResp
    Handle hoResp
    Handle hoJson
    Boolean iSuccess
    String sDevice
    String sDisplay_name
    String sName
    String sNumber
    String sV_type
    Integer j
    Integer iCount_j
    String sStrVal
    String sResponseResult
    String sResponseStatus_msg
    String sStat
    Integer i
    Integer iCount_i
    String sTemp1
    Integer iTemp1
    Boolean bTemp1

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

    Move "DIMS3V5QDVG9J9ABRXC4" To sIntegrationKey
    Move "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab" To sSecretKey

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    Set ComAccept Of hoHttp To "application/json"

    // Use your own hostname here:
    Move "https://api-a03782e1.duosecurity.com/auth/v2/preauth" To sUrl

    // 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.
    Set ComLogin Of hoHttp To sIntegrationKey
    Set ComPassword Of hoHttp To sSecretKey

    Get Create (RefClass(cComChilkatHttpRequest)) To hoReq
    If (Not(IsComObjectCreated(hoReq))) Begin
        Send CreateComObject of hoReq
    End
    Send ComAddParam To hoReq "username" "matt"

    Get pvComObject of hoReq to vReq
    Get ComPostUrlEncoded Of hoHttp sUrl vReq To vResp
    If (IsComObject(vResp)) Begin
        Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
        Set pvComObject Of hoResp To vResp
    End
    Get ComLastMethodSuccess Of hoHttp To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComStatusCode Of hoResp To iTemp1
    Showln "status code = " iTemp1

    Get Create (RefClass(cComChilkatJsonObject)) To hoJson
    If (Not(IsComObjectCreated(hoJson))) Begin
        Send CreateComObject of hoJson
    End
    Get ComBodyStr Of hoResp To sTemp1
    Get ComLoad Of hoJson sTemp1 To iSuccess
    Set ComEmitCompact Of hoJson To False
    Get ComEmit Of hoJson To sTemp1
    Showln sTemp1

    Send Destroy of hoResp

    // 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

    Get ComStringOf Of hoJson "response.result" To sResponseResult
    Get ComStringOf Of hoJson "response.status_msg" To sResponseStatus_msg
    Get ComStringOf Of hoJson "stat" To sStat
    Move 0 To i
    Get ComSizeOfArray Of hoJson "response.devices" To iCount_i
    While (i < iCount_i)
        Set ComI Of hoJson To i
        Get ComStringOf Of hoJson "response.devices[i].device" To sDevice
        Get ComStringOf Of hoJson "response.devices[i].display_name" To sDisplay_name
        Get ComStringOf Of hoJson "response.devices[i].name" To sName
        Get ComStringOf Of hoJson "response.devices[i].number" To sNumber
        Get ComStringOf Of hoJson "response.devices[i].type" To sV_type
        Move 0 To j
        Get ComSizeOfArray Of hoJson "response.devices[i].capabilities" To iCount_j
        While (j < iCount_j)
            Set ComJ Of hoJson To j
            Get ComStringOf Of hoJson "response.devices[i].capabilities[j]" To sStrVal
            Move (j + 1) To j
        Loop

        Move (i + 1) To i
    Loop



End_Procedure