(PureBasic) 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 PureBasic Module Download Chilkat PureBasic Module

IncludeFile "CkHttpResponse.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkJsonObject.pb"
IncludeFile "CkHttpRequest.pb"

Procedure ChilkatExample()

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

    integrationKey.s = "DIMS3V5QDVG9J9ABRXC4"
    secretKey.s = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttp::setCkAccept(http, "application/json")

    ; Use your own hostname here:
    url.s = "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.
    CkHttp::setCkLogin(http, integrationKey)
    CkHttp::setCkPassword(http, secretKey)

    req.i = CkHttpRequest::ckCreate()
    If req.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttpRequest::ckAddParam(req,"username","matt")

    resp.i = CkHttp::ckPostUrlEncoded(http,url,req)
    If CkHttp::ckLastMethodSuccess(http) = 0
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkHttpRequest::ckDispose(req)
        ProcedureReturn
    EndIf

    Debug "status code = " + Str(CkHttpResponse::ckStatusCode(resp))

    json.i = CkJsonObject::ckCreate()
    If json.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success.i = CkJsonObject::ckLoad(json,CkHttpResponse::ckBodyStr(resp))
    CkJsonObject::setCkEmitCompact(json, 0)
    Debug CkJsonObject::ckEmit(json)

    CkHttpResponse::ckDispose(resp)

    ; 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

    device.s
    display_name.s
    name.s
    number.s
    v_type.s
    j.i
    count_j.i
    strVal.s

    responseResult.s = CkJsonObject::ckStringOf(json,"response.result")
    responseStatus_msg.s = CkJsonObject::ckStringOf(json,"response.status_msg")
    stat.s = CkJsonObject::ckStringOf(json,"stat")
    i.i = 0
    count_i.i = CkJsonObject::ckSizeOfArray(json,"response.devices")
    While i < count_i
        CkJsonObject::setCkI(json, i)
        device = CkJsonObject::ckStringOf(json,"response.devices[i].device")
        display_name = CkJsonObject::ckStringOf(json,"response.devices[i].display_name")
        name = CkJsonObject::ckStringOf(json,"response.devices[i].name")
        number = CkJsonObject::ckStringOf(json,"response.devices[i].number")
        v_type = CkJsonObject::ckStringOf(json,"response.devices[i].type")
        j = 0
        count_j = CkJsonObject::ckSizeOfArray(json,"response.devices[i].capabilities")
        While j < count_j
            CkJsonObject::setCkJ(json, j)
            strVal = CkJsonObject::ckStringOf(json,"response.devices[i].capabilities[j]")
            j = j + 1
        Wend
        i = i + 1
    Wend


    CkHttp::ckDispose(http)
    CkHttpRequest::ckDispose(req)
    CkJsonObject::ckDispose(json)


    ProcedureReturn
EndProcedure