(PureBasic) Duplicate TLS 1.2 SOAP Request that uses .NET HttpWebRequest

This example shows how to duplicate a SOAP request that uses .NET's HttpWebRequest and requires TLS 1.2.

        string xmlRequest = "...envelope..."

        System.Net.ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;

        string url = "https://www3.gsis.gr/webtax2/wsgsis/RgWsPublic/RgWsPublicPort?WSDL";
        HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
        req.Method = "POST";
        req.ContentType = "text/xml;charset=UTF-8";

        byte[] reqBytes = new System.Text.UTF8Encoding().GetBytes(xmlRequest);

        req.ContentLength = reqBytes.Length;

        try {
            using (System.IO.Stream reqStream = req.GetRequestStream()) {
                reqStream.Write(reqBytes, 0, reqBytes.Length);
                reqStream.Flush();
                reqStream.Close();
            }

        } catch (Exception ex) {
            actionLogger.AddError(ex.Message, null);
            actionLogger.Validate();
        }

        string xmlResponse = null;
        using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse()) {
            try {
                using (System.IO.StreamReader sr = new System.IO.StreamReader(resp.GetResponseStream())) {
                    xmlResponse = sr.ReadToEnd();
                    sr.Close();
                }
            } catch (Exception ex) {
                actionLogger.AddError(ex.Message, null);
                actionLogger.Validate();
            } finally {
                resp.Close();
            }
        }

Chilkat PureBasic Module Download Chilkat PureBasic Module

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

Procedure ChilkatExample()

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

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

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

    CkHttpRequest::setCkHttpVerb(req, "POST")
    CkHttpRequest::setCkContentType(req, "text/xml")
    CkHttpRequest::setCkSendCharset(req, 1)
    CkHttpRequest::setCkCharset(req, "utf-8")
    CkHttpRequest::setCkPath(req, "/webtax2/wsgsis/RgWsPublic/RgWsPublicPort?WSDL")

    xmlRequest.s = "...SOAP envelope..."
    CkHttpRequest::ckLoadBodyFromString(req,xmlRequest)

    CkHttp::setCkFollowRedirects(http, 1)

    ; Chilkat will automatically offer TLS 1.2.  It is the server that
    ; chooses the TLS protocol version.  Assuming the server wishes to use
    ; TLS 1.2, then that is what will be used.
    resp.i = CkHttp::ckSynchronousRequest(http,"www3.gsis.gr",443,1,req)
    If CkHttp::ckLastMethodSuccess(http) <> 1
        Debug CkHttp::ckLastErrorText(http)
        CkHttp::ckDispose(http)
        CkHttpRequest::ckDispose(req)
        ProcedureReturn
    EndIf

    xmlResponse.s = CkHttpResponse::ckBodyStr(resp)
    Debug xmlResponse

    CkHttpResponse::ckDispose(resp)



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


    ProcedureReturn
EndProcedure