Imports System.IO
Imports System.Net
Imports Newtonsoft.Json
Imports Newtonsoft.Json.Linq
Public Class _Default
    Inherits System.Web.UI.Page
 
    Public Class JsnRPCclient
        Private id As Integer = 0
        Public Property URL As String
        Public Property Method As String
        Public Property Parameters As JObject
        Public Property Response1 As JsonRPCresponse
 
        Public Sub New()
            Parameters = New JObject()
            Response1 = Nothing
        End Sub
 
        Public Sub New(ByVal URL As String)
            Me.URL = URL
            Parameters = New JObject()
            Response1 = Nothing
        End Sub
 
        Public Function Post() As String
 
            Dim jobject As JObject = New JObject()
            jobject.Add(New JProperty("jsonrpc", "2.0"))
            jobject.Add(New JProperty("id", System.Threading.Interlocked.Increment(id)))
            jobject.Add(New JProperty("method", Method))
            jobject.Add(New JProperty("params", Parameters))
            Dim PostData As String = JsonConvert.SerializeObject(jobject)
            Dim encoding As UTF8Encoding = New UTF8Encoding()
            Dim bytes As Byte() = encoding.GetBytes(PostData)
            Dim requestn As HttpWebRequest = CType(WebRequest.Create(URL), HttpWebRequest)
            requestn.Method = "POST"
            requestn.ContentType = "application/json"
            requestn.KeepAlive = True
            requestn.ContentLength = bytes.Length
            Dim writeStream As Stream = requestn.GetRequestStream()
            writeStream.Write(bytes, 0, bytes.Length)
            writeStream.Close()
            Dim response As HttpWebResponse = CType(requestn.GetResponse(), HttpWebResponse)
            Dim responseStream As Stream = response.GetResponseStream()
            Dim readStream As StreamReader = New StreamReader(responseStream, encoding.UTF8)
            Response1 = New JsonRPCresponse()
            Response1 = JsonConvert.DeserializeObject(Of JsonRPCresponse)(readStream.ReadToEnd())
            Response1.StatusCode = response.StatusCode
            Return Response1.ToString()
 
        End Function
 
        Public Sub ClearParameters()
            Me.Parameters = New JObject()
        End Sub
    End Class
 
    Public Class JsonRPCresponse
        Public Property id As Integer
        Public Property result As Object
        Public Property [error] As String
        Public Property StatusCode As HttpStatusCode
 
        Public Sub New()
        End Sub
 
        Public Overrides Function ToString() As String
            Return "{""id"":" & id.ToString() & ",""result"":""" & result.ToString() & """,""error"":" & [error] & (If((String.IsNullOrEmpty([error])), "null", """" & [error] & """")) & "}"
        End Function
    End Class
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 
    End Sub
 
    Protected Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
 
        'Configure SSL/TLS settings
        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 Or SecurityProtocolType.Tls11 Or SecurityProtocolType.Tls
        ServicePointManager.ServerCertificateValidationCallback = Function(sender2, certificate, chain, sslPolicyErrors) True
 
 
 
 
        Dim Baseurl As String = "https://www.dcsmanagement.com.au/evf/admin/remotecontrol/"
        Dim client As JsnRPCclient = New JsnRPCclient(Baseurl)
        client.Method = "get_session_key"
        client.Parameters.Add("username", "admin")
        client.Parameters.Add("password", "123456")
        client.Post()
 
 
 
        Dim SessionKey As String = client.Response1.result.ToString()
        'Console.WriteLine(SessionKey.ToString)
        TextBox1.Text += SessionKey
        client.ClearParameters()
 
 
        If (client.Response1.StatusCode = System.Net.HttpStatusCode.OK) Then
            client.Method = "list_surveys"
            client.Parameters.Add("sSessionKey", SessionKey)
            client.Post()
        End If
 
        client.ClearParameters()
 
        Dim content As String = client.Response1.result.ToString()
 
        ' Read the response content as a string
 
        ' Dim jsonObject As JObject = JObject.Parse(content)
        Dim jsonArray As JArray = JArray.Parse(content)
        Dim t, i, d As String
 
        For Each item As JObject In jsonArray
            t = item.SelectToken("surveyls_title").ToString
            i = item.SelectToken("sid").ToString
            d = ""
            If t.Contains("<br>") Then
                Dim StringParts() As String = Split(t, "<br>", 3)
                d = StringParts(2).ToString
                t = t.Replace("<br>", " ")
                Literal1.Text += "<tr><td>" &amp; i.ToString &amp; "</td><td>" &amp; t.ToString &amp; "</td><td>" &amp; d.ToString &amp; "</td><tr>"
            ElseIf Not t.Contains("<br>") Then
                d = "---"
                t = t.Replace("<br>", " ")
                Literal1.Text += "<tr><td>" &amp; i.ToString &amp; "</td><td>" &amp; t.ToString &amp; "</td><td>" &amp; d.ToString &amp; "</td><tr>"
            End If
 
        Next
 
        TextBox1.Text += content
    End Sub
End Class