/// <summary>
/// Call method exposed to user
/// </summary>
/// <param name="apiCallHandler"></param>
/// <returns></returns>
public string Call(IAPICallPreHandler apiCallHandler)
{
APIService apiServ = new APIService(this.config);
this.lastRequest = apiCallHandler.GetPayLoad();
this.lastResponse = apiServ.MakeRequestUsing(apiCallHandler);
return this.lastResponse;
}
/// <summary>
/// Call method exposed to user
/// </summary>
/// <param name="apiCallHandler"></param>
/// <returns></returns>
public string Call(IAPICallPreHandler apiCallHandler)
{
APIService apiServ = new APIService(this.config);
this.lastRequest = apiCallHandler.GetPayLoad();
this.lastResponse = apiServ.MakeRequestUsing(apiCallHandler);
return(this.lastResponse);
}
/// <summary>
/// Appends SOAP Headers to payload
/// if the credentials mandate soap headers
/// </summary>
/// <returns></returns>
public string GetPayLoad()
{
if (payLoad == null)
{
payLoad = apiCallHandler.GetPayLoad();
string header = null;
if (credential is SignatureCredential)
{
SignatureCredential signCredential = (SignatureCredential)credential;
SignatureSOAPHeaderAuthStrategy signSoapHeaderAuthStrategy = new SignatureSOAPHeaderAuthStrategy();
signSoapHeaderAuthStrategy.ThirdPartyAuthorization = signCredential.ThirdPartyAuthorization;
header = signSoapHeaderAuthStrategy.GenerateHeaderStrategy(signCredential);
}
else if (credential is CertificateCredential)
{
CertificateCredential certCredential = (CertificateCredential)credential;
CertificateSOAPHeaderAuthStrategy certSoapHeaderAuthStrategy = new CertificateSOAPHeaderAuthStrategy();
certSoapHeaderAuthStrategy.ThirdPartyAuthorization = certCredential.ThirdPartyAuthorization;
header = certSoapHeaderAuthStrategy.GenerateHeaderStrategy(certCredential);
}
payLoad = GetPayLoadUsingSOAPHeader(payLoad, GetAttributeNamespace(), header);
}
return(payLoad);
}
/// <summary>
/// Makes a request to API service
/// </summary>
/// <param name="apiCallHandler"></param>
/// <returns></returns>
public string MakeRequestUsing(IAPICallPreHandler apiCallHandler)
{
string responseString = string.Empty;
string uri = apiCallHandler.GetEndPoint();
Dictionary<string, string> headers = apiCallHandler.GetHeaderMap();
string payLoad = apiCallHandler.GetPayLoad();
// Constructing HttpWebRequest object
ConnectionManager connMngr = ConnectionManager.Instance;
HttpWebRequest httpRequest = connMngr.GetConnection(this.config, uri);
httpRequest.Method = RequestMethod;
foreach (KeyValuePair<string, string> header in headers)
{
httpRequest.Headers.Add(header.Key, header.Value);
}
if (logger.IsDebugEnabled)
{
foreach (string headerName in httpRequest.Headers)
{
logger.Debug(headerName + ":" + httpRequest.Headers[headerName]);
}
}
// Adding payLoad to HttpWebRequest object
using (StreamWriter myWriter = new StreamWriter(httpRequest.GetRequestStream()))
{
myWriter.Write(payLoad);
logger.Debug(payLoad);
}
if (apiCallHandler.GetCredential() is CertificateCredential)
{
CertificateCredential certCredential = (CertificateCredential)apiCallHandler.GetCredential();
// Load the certificate into an X509Certificate2 object.
if (((CertificateCredential)certCredential).PrivateKeyPassword.Trim() == string.Empty)
{
x509 = new X509Certificate2(((CertificateCredential)certCredential).CertificateFile);
}
else
{
x509 = new X509Certificate2(((CertificateCredential)certCredential).CertificateFile, ((CertificateCredential)certCredential).PrivateKeyPassword);
}
httpRequest.ClientCertificates.Add(x509);
}
// Fire request. Retry if configured to do so
int numRetries = (this.config.ContainsKey(BaseConstants.HTTP_CONNECTION_RETRY_CONFIG)) ?
Convert.ToInt32(config[BaseConstants.HTTP_CONNECTION_RETRY_CONFIG]) : 0;
int retries = 0;
do
{
try
{
// Calling the plaftform API web service and getting the response
using (WebResponse response = httpRequest.GetResponse())
{
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
responseString = sr.ReadToEnd();
logger.Debug("Service response");
logger.Debug(responseString);
return responseString;
}
}
}
// Server responses in the range of 4xx and 5xx throw a WebException
catch (WebException we)
{
HttpStatusCode statusCode = ((HttpWebResponse)we.Response).StatusCode;
logger.Info("Got " + statusCode.ToString() + " response from server");
if (!RequiresRetry(we))
{
throw new ConnectionException("Invalid HTTP response " + we.Message);
}
}
catch(System.Exception ex)
{
throw ex;
}
} while (retries++ < numRetries);
throw new ConnectionException("Invalid HTTP response");
}
/// <summary>
/// Makes a request to API service
/// </summary>
/// <param name="apiCallHandler"></param>
/// <returns></returns>
public string MakeRequestUsing(IAPICallPreHandler apiCallHandler)
{
string responseString = string.Empty;
string uri = apiCallHandler.GetEndPoint();
Dictionary <string, string> headers = apiCallHandler.GetHeaderMap();
string payLoad = apiCallHandler.GetPayLoad();
// Constructing HttpWebRequest object
ConnectionManager connMngr = ConnectionManager.Instance;
HttpWebRequest httpRequest = connMngr.GetConnection(this.config, uri);
httpRequest.Method = RequestMethod;
foreach (KeyValuePair <string, string> header in headers)
{
httpRequest.Headers.Add(header.Key, header.Value);
}
if (logger.IsDebugEnabled)
{
foreach (string headerName in httpRequest.Headers)
{
logger.Debug(headerName + ":" + httpRequest.Headers[headerName]);
}
}
// Adding payLoad to HttpWebRequest object
using (StreamWriter myWriter = new StreamWriter(httpRequest.GetRequestStream()))
{
myWriter.Write(payLoad);
logger.Debug(payLoad);
}
if (apiCallHandler.GetCredential() is CertificateCredential)
{
CertificateCredential certCredential = (CertificateCredential)apiCallHandler.GetCredential();
// Load the certificate into an X509Certificate2 object.
if (((CertificateCredential)certCredential).PrivateKeyPassword.Trim() == string.Empty)
{
x509 = new X509Certificate2(((CertificateCredential)certCredential).CertificateFile);
}
else
{
x509 = new X509Certificate2(((CertificateCredential)certCredential).CertificateFile, ((CertificateCredential)certCredential).PrivateKeyPassword);
}
httpRequest.ClientCertificates.Add(x509);
}
// Fire request. Retry if configured to do so
int numRetries = (this.config.ContainsKey(BaseConstants.HTTP_CONNECTION_RETRY_CONFIG)) ?
Convert.ToInt32(config[BaseConstants.HTTP_CONNECTION_RETRY_CONFIG]) : 0;
int retries = 0;
do
{
try
{
// Calling the plaftform API web service and getting the response
using (WebResponse response = httpRequest.GetResponse())
{
using (StreamReader sr = new StreamReader(response.GetResponseStream()))
{
responseString = sr.ReadToEnd();
logger.Debug("Service response");
logger.Debug(responseString);
return(responseString);
}
}
}
// Server responses in the range of 4xx and 5xx throw a WebException
catch (WebException we)
{
HttpStatusCode statusCode = ((HttpWebResponse)we.Response).StatusCode;
logger.Info("Got " + statusCode.ToString() + " response from server");
if (!RequiresRetry(we))
{
throw new ConnectionException("Invalid HTTP response " + we.Message);
}
}
catch (System.Exception ex)
{
throw ex;
}
} while (retries++ < numRetries);
throw new ConnectionException("Invalid HTTP response");
}
