public String executeHTTPMethod(GatewayApiRequest gatewayApiRequest)
{
string body = String.Empty;
GatewayApiConfig GatewayApiConfig = gatewayApiRequest.GatewayApiConfig;
//proxy settings
if (GatewayApiConfig.UseProxy)
{
WebProxy proxy = new WebProxy(GatewayApiConfig.ProxyHost, true);
if (!String.IsNullOrEmpty(GatewayApiConfig.ProxyUser))
{
if (String.IsNullOrEmpty(GatewayApiConfig.ProxyDomain))
{
proxy.Credentials = new NetworkCredential(GatewayApiConfig.ProxyUser, GatewayApiConfig.ProxyPassword);
}
else
{
proxy.Credentials = new NetworkCredential(GatewayApiConfig.ProxyUser, GatewayApiConfig.ProxyPassword, GatewayApiConfig.ProxyDomain);
}
}
WebRequest.DefaultWebProxy = proxy;
}
// Create the web request
HttpWebRequest request = WebRequest.Create(gatewayApiRequest.RequestUrl) as HttpWebRequest;
//http verb
request.Method = gatewayApiRequest.ApiMethod;
//content type, json, form, etc
request.ContentType = gatewayApiRequest.ContentType;
LogInfo.Information($@"HttpWebRequest url {gatewayApiRequest.RequestUrl} method {request.Method}");
//Authentication setting
if (GatewayApiConfig.AuthenticationByCertificate)
{
//custom implementation fo SSL certificate validation callback
request.ServerCertificateValidationCallback +=
(sender, cert, chain, error) =>
{
return(error == SslPolicyErrors.None || (error != SslPolicyErrors.None && GatewayApiConfig.IgnoreSslErrors));
};
//create a new certificate collection
X509Certificate2Collection certificates = new X509Certificate2Collection();
//load and add a new certificate loaded from file (p12)
certificates.Add(new X509Certificate2(new X509Certificate(GatewayApiConfig.CertificateLocation, GatewayApiConfig.CertificatePassword)));
//attach certificate to request
request.ClientCertificates = certificates;
}
else
{
string credentials = Convert.ToBase64String(ASCIIEncoding.ASCII.GetBytes(GatewayApiConfig.Username + ":" + GatewayApiConfig.Password));
request.Headers.Add("Authorization", "Basic " + credentials);
}
//buuld the request
try
{
if ((gatewayApiRequest.ApiMethod == "PUT" || gatewayApiRequest.ApiMethod == "POST") &&
!String.IsNullOrEmpty(gatewayApiRequest.Payload))
{
LogInfo.Information($@"HttpWebRequest payload {gatewayApiRequest.Payload}");
// Create a byte array of the data we want to send
byte[] utf8bytes = Encoding.UTF8.GetBytes(gatewayApiRequest.Payload);
byte[] iso8859bytes = Encoding.Convert(Encoding.UTF8, Encoding.GetEncoding("iso-8859-1"), utf8bytes);
// Set the content length in the request headers
request.ContentLength = iso8859bytes.Length;
// Write request data
using (Stream postStream = request.GetRequestStream())
{
postStream.Write(iso8859bytes, 0, iso8859bytes.Length);
}
}
// Get response
try
{
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
// Get the response stream
StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("iso-8859-1"));
body = reader.ReadToEnd();
}
}
catch (WebException wex)
{
LogInfo.Debug($@"Response debug : {wex.Response.Headers}");
StreamReader reader = new StreamReader(wex.Response.GetResponseStream(), Encoding.GetEncoding("iso-8859-1"));
body = reader.ReadToEnd();
}
LogInfo.Information($@"HttpWebResponse response {body}");
return(body);
}
catch (Exception ex)
{
return(ex.Message + "\n\naddress:\n" + request.Address.ToString() + "\n\nheader:\n" + request.Headers.ToString() + "data submitted:\n" + gatewayApiRequest.Payload);
}
}
/// <summary>
/// Sends the transaction.
/// </summary>
/// <returns>The transaction.</returns>
/// <param name="gatewayApiRequest">Gateway API request.</param>
public override string SendTransaction(GatewayApiRequest gatewayApiRequest)
{
return(this.executeHTTPMethod(gatewayApiRequest));
}
/// <summary> /// Abstract method reesponsible to prepare the request to be sent /// </summary> /// <returns>The transaction.</returns> /// <param name="gatewayApiRequest">Gateway API request.</param> public abstract string SendTransaction(GatewayApiRequest gatewayApiRequest);