/// <summary>
///
/// </summary>
/// <param name="request"></param>
/// <param name="service"></param>
/// <returns></returns>
public virtual IOResponse InvokeService (IORequest request, IOService service)
{
IOResponse response = new IOResponse ();
if (service != null) {
if (service.Endpoint == null) {
SystemLogger.Log (SystemLogger.Module .CORE, "No endpoint configured for this service name: " + service.Name);
return response;
}
SystemLogger.Log(SystemLogger.Module.CORE, "Endpoint: " + service.Endpoint.Host+service.Endpoint.Path);
SystemLogger.Log (SystemLogger.Module .CORE, "Request content: " + request.Content);
byte[] requestData = request.GetRawContent ();
String reqMethod = service.RequestMethod.ToString(); // default is POST
if (request.Method != null && request.Method != String.Empty) reqMethod = request.Method.ToUpper();
String requestUriString = this.FormatRequestUriString(request, service, reqMethod);
Thread timeoutThread = null;
try {
// Security - VALIDATIONS
ServicePointManager.ServerCertificateValidationCallback = ValidateWebCertificates;
// Building Web Request to send
HttpWebRequest webReq = this.BuildWebRequest(request, service, requestUriString, reqMethod);
// Throw a new Thread to check absolute timeout
timeoutThread = new Thread(CheckInvokeTimeout);
timeoutThread.Start(webReq);
// POSTING DATA using timeout
if (!reqMethod.Equals(RequestMethod.GET.ToString()) && requestData != null && !ServiceType.MULTIPART_FORM_DATA.Equals(service.Type))
{
// send data only for POST method.
SystemLogger.Log (SystemLogger.Module.CORE, "Sending data on the request stream... (POST)");
SystemLogger.Log (SystemLogger.Module.CORE, "request data length: " + requestData.Length);
using (Stream requestStream = webReq.GetRequestStream()) {
SystemLogger.Log (SystemLogger.Module.CORE, "request stream: " + requestStream);
requestStream.Write (requestData, 0, requestData.Length);
}
}
using (HttpWebResponse webResp = (HttpWebResponse)webReq.GetResponse())
{
SystemLogger.Log(SystemLogger.Module.CORE, "getting response...");
response = this.ReadWebResponse(webReq, webResp, service);
}
} catch (WebException ex) {
SystemLogger.Log (SystemLogger.Module .CORE, "WebException requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "WebException Requesting Service: " + requestUriString + ". Message: " + ex.Message;
} catch (Exception ex) {
SystemLogger.Log (SystemLogger.Module .CORE, "Unnandled Exception requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "Unhandled Exception Requesting Service: " + requestUriString + ". Message: " + ex.Message;
} finally {
// abort any previous timeout checking thread
if(timeoutThread!=null && timeoutThread.IsAlive) {
timeoutThread.Abort();
}
}
} else {
SystemLogger.Log (SystemLogger.Module .CORE, "Null service received for invoking.");
}
return response;
}
/// <summary>
///
/// </summary>
/// <param name="request"></param>
/// <param name="service"></param>
/// <returns></returns>
public virtual IOResponse InvokeService(IORequest request, IOService service)
{
IOResponse response = new IOResponse();
if (service != null)
{
SystemLogger.Log(SystemLogger.Module.CORE, "Request content: " + request.Content);
byte[] requestData = request.GetRawContent();
if (service.Endpoint == null)
{
SystemLogger.Log(SystemLogger.Module.CORE, "No endpoint configured for this service name: " + service.Name);
return(response);
}
string requestUriString = String.Format("{0}:{1}{2}", service.Endpoint.Host, service.Endpoint.Port, service.Endpoint.Path);
if (service.Endpoint.Port == 0)
{
requestUriString = String.Format("{0}{1}", service.Endpoint.Host, service.Endpoint.Path);
}
if (service.RequestMethod == RequestMethod.GET && request.Content != null)
{
// add request content to the URI string when GET method.
requestUriString += request.Content;
}
SystemLogger.Log(SystemLogger.Module.CORE, "Requesting service: " + requestUriString);
try {
ServicePointManager.ServerCertificateValidationCallback += delegate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) {
SystemLogger.Log(SystemLogger.Module.CORE, "*************** On ServerCertificateValidationCallback: accept all certificates");
return(true);
};
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(requestUriString);
req.Method = service.RequestMethod.ToString(); // default is POST
req.ContentType = contentTypes [service.Type];
// check specific request ContentType defined, and override service type in that case
if (request.ContentType != null && request.ContentType.Length > 0)
{
req.ContentType = request.ContentType;
}
SystemLogger.Log(SystemLogger.Module.CORE, "Request content type: " + req.ContentType);
SystemLogger.Log(SystemLogger.Module.CORE, "Request method: " + req.Method);
req.Accept = req.ContentType; // setting "Accept" header with the same value as "Content Type" header, it is needed to be defined for some services.
req.ContentLength = request.GetContentLength();
SystemLogger.Log(SystemLogger.Module.CORE, "Request content length: " + req.ContentLength);
req.Timeout = DEFAULT_RESPONSE_TIMEOUT; // in millisecods (default is 10 seconds)
req.KeepAlive = false;
// user agent needs to be informed - some servers check this parameter and send 500 errors when not informed.
req.UserAgent = this.IOUserAgent;
SystemLogger.Log(SystemLogger.Module.CORE, "Request UserAgent : " + req.UserAgent);
// add specific headers to the request
if (request.Headers != null && request.Headers.Length > 0)
{
foreach (IOHeader header in request.Headers)
{
req.Headers.Add(header.Name, header.Value);
SystemLogger.Log(SystemLogger.Module.CORE, "Added request header: " + header.Name + "=" + req.Headers.Get(header.Name));
}
}
// Assign the cookie container on the request to hold cookie objects that are sent on the response.
// Required even though you no cookies are send.
req.CookieContainer = this.cookieContainer;
// add cookies to the request cookie container
if (request.Session != null && request.Session.Cookies != null && request.Session.Cookies.Length > 0)
{
foreach (IOCookie cookie in request.Session.Cookies)
{
req.CookieContainer.Add(req.RequestUri, new Cookie(cookie.Name, cookie.Value));
SystemLogger.Log(SystemLogger.Module.CORE, "Added cookie [" + cookie.Name + "] to request.");
}
}
SystemLogger.Log(SystemLogger.Module.CORE, "HTTP Request cookies: " + req.CookieContainer.GetCookieHeader(req.RequestUri));
if (service.Endpoint.ProxyUrl != null)
{
WebProxy myProxy = new WebProxy();
Uri proxyUri = new Uri(service.Endpoint.ProxyUrl);
myProxy.Address = proxyUri;
req.Proxy = myProxy;
}
if (req.Method == RequestMethod.POST.ToString())
{
// send data only for POST method.
SystemLogger.Log(SystemLogger.Module.CORE, "Sending data on the request stream... (POST)");
SystemLogger.Log(SystemLogger.Module.CORE, "request data length: " + requestData.Length);
using (Stream requestStream = req.GetRequestStream()) {
SystemLogger.Log(SystemLogger.Module.CORE, "request stream: " + requestStream);
requestStream.Write(requestData, 0, requestData.Length);
}
}
string result = null;
byte[] resultBinary = null;
string responseMimeTypeOverride = null;
using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse()) {
SystemLogger.Log(SystemLogger.Module.CORE, "getting response...");
using (Stream stream = resp.GetResponseStream()) {
SystemLogger.Log(SystemLogger.Module.CORE, "getting response stream...");
if (ServiceType.OCTET_BINARY.Equals(service.Type))
{
// TODO workaround to avoid problems when serving binary content (corrupted content)
Thread.Sleep(500);
int lengthContent = 0;
if (resp.GetResponseHeader("Content-Length") != null && resp.GetResponseHeader("Content-Length") != "")
{
lengthContent = Int32.Parse(resp.GetResponseHeader("Content-Length"));
}
if (lengthContent > 0)
{
// Read in block
resultBinary = new byte[lengthContent];
stream.Read(resultBinary, 0, lengthContent);
}
else
{
// Read to end of stream
MemoryStream memBuffer = new MemoryStream();
byte[] readBuffer = new byte[256];
int readLen = 0;
do
{
readLen = stream.Read(readBuffer, 0, readBuffer.Length);
memBuffer.Write(readBuffer, 0, readLen);
} while (readLen > 0);
resultBinary = memBuffer.ToArray();
memBuffer.Close();
memBuffer = null;
}
}
else
{
SystemLogger.Log(SystemLogger.Module.CORE, "reading response content...");
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8)) {
result = reader.ReadToEnd();
}
}
}
responseMimeTypeOverride = resp.GetResponseHeader("Content-Type");
// get response cookies (stored on cookiecontainer)
if (response.Session == null)
{
response.Session = new IOSessionContext();
}
response.Session.Cookies = new IOCookie[this.cookieContainer.Count];
IEnumerator enumerator = this.cookieContainer.GetCookies(req.RequestUri).GetEnumerator();
int i = 0;
while (enumerator.MoveNext())
{
Cookie cookieFound = (Cookie)enumerator.Current;
SystemLogger.Log(SystemLogger.Module.CORE, "Found cookie on response: " + cookieFound.Name + "=" + cookieFound.Value);
IOCookie cookie = new IOCookie();
cookie.Name = cookieFound.Name;
cookie.Value = cookieFound.Value;
response.Session.Cookies [i] = cookie;
i++;
}
}
if (ServiceType.OCTET_BINARY.Equals(service.Type))
{
if (responseMimeTypeOverride != null && !responseMimeTypeOverride.Equals(contentTypes [service.Type]))
{
response.ContentType = responseMimeTypeOverride;
}
else
{
response.ContentType = contentTypes [service.Type];
}
response.ContentBinary = resultBinary; // Assign binary content here
}
else
{
response.ContentType = contentTypes [service.Type];
response.Content = result;
}
} catch (WebException ex) {
SystemLogger.Log(SystemLogger.Module.CORE, "WebException requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "WebException Requesting Service: " + requestUriString + ". Message: " + ex.Message;
} catch (Exception ex) {
SystemLogger.Log(SystemLogger.Module.CORE, "Unnandled Exception requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "Unhandled Exception Requesting Service: " + requestUriString + ". Message: " + ex.Message;
}
}
else
{
SystemLogger.Log(SystemLogger.Module.CORE, "Null service received for invoking.");
}
return(response);
}
/*
private static Stream GetStreamForResponse(HttpWebResponse webResponse)
{
Stream stream;
switch (webResponse.ContentEncoding.ToUpperInvariant())
{
case "GZIP":
stream = new GZipStream(webResponse.GetResponseStream(), CompressionMode.Decompress);
break;
case "DEFLATE":
stream = new DeflateStream(webResponse.GetResponseStream(), CompressionMode.Decompress);
break;
default:
stream = webResponse.GetResponseStream();
//stream.ReadTimeout = readTimeOut;
break;
}
return stream;
}
*/
private IOResponse ReadWebResponse(HttpWebRequest webRequest, HttpWebResponse webResponse, IOService service) {
IOResponse response = new IOResponse ();
// result types (string or byte array)
byte[] resultBinary = null;
string result = null;
string responseMimeTypeOverride = webResponse.GetResponseHeader ("Content-Type");
using (Stream stream = webResponse.GetResponseStream()) {
SystemLogger.Log (SystemLogger.Module.CORE, "getting response stream...");
if (ServiceType.OCTET_BINARY.Equals (service.Type)) {
int lengthContent = -1;
if (webResponse.GetResponseHeader ("Content-Length") != null && webResponse.GetResponseHeader ("Content-Length") != "") {
lengthContent = Int32.Parse (webResponse.GetResponseHeader ("Content-Length"));
}
// testing log line
// SystemLogger.Log (SystemLogger.Module.CORE, "content-length header: " + lengthContent +", max file size: " + MAX_BINARY_SIZE);
int bufferReadSize = DEFAULT_BUFFER_READ_SIZE;
if (lengthContent >= 0 && lengthContent<=bufferReadSize) {
bufferReadSize = lengthContent;
}
if(lengthContent>MAX_BINARY_SIZE) {
SystemLogger.Log (SystemLogger.Module.CORE,
"WARNING! - file exceeds the maximum size defined in platform (" + MAX_BINARY_SIZE+ " bytes)");
} else {
// Read to end of stream in blocks
SystemLogger.Log (SystemLogger.Module.CORE, "buffer read: " + bufferReadSize + " bytes");
MemoryStream memBuffer = new MemoryStream ();
byte[] readBuffer = new byte[bufferReadSize];
int readLen = 0;
do {
readLen = stream.Read (readBuffer, 0, readBuffer.Length);
memBuffer.Write (readBuffer, 0, readLen);
} while (readLen >0);
resultBinary = memBuffer.ToArray ();
memBuffer.Close ();
memBuffer = null;
}
} else {
SystemLogger.Log (SystemLogger.Module.CORE, "reading response content...");
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8)) {
result = reader.ReadToEnd ();
}
}
}
/*************
* CACHE
*************/
// preserve cache-control header from remote server, if any
/*
string cacheControlHeader = webResponse.GetResponseHeader ("Cache-Control");
if (cacheControlHeader != null && cacheControlHeader != "") {
SystemLogger.Log (SystemLogger.Module.CORE, "Found Cache-Control header on response: " + cacheControlHeader + ", using it on internal response...");
if(response.Headers == null) {
response.Headers = new IOHeader[1];
}
IOHeader cacheHeader = new IOHeader();
cacheHeader.Name = "Cache-Control";
cacheHeader.Value = cacheControlHeader;
response.Headers[0] = cacheHeader;
}
*/
/*************
* HEADERS HANDLING
*************/
if (webResponse.Headers != null)
{
response.Headers = new IOHeader[webResponse.Headers.Count];
int size = 0;
foreach(string headerKey in webResponse.Headers.AllKeys) {
string headerValue = webResponse.GetResponseHeader(headerKey);
IOHeader objHeader = new IOHeader();
objHeader.Name = headerKey;
objHeader.Value = headerValue;
SystemLogger.Log(SystemLogger.Module.CORE, "Found Header on response: " + headerKey + "=" + headerValue);
response.Headers[size++] = objHeader;
}
}
/*************
* COOKIES HANDLING
*************/
// get response cookies (stored on cookiecontainer)
if (response.Session == null) {
response.Session = new IOSessionContext ();
}
response.Session.Cookies = new IOCookie[this.cookieContainer.Count];
IEnumerator enumerator = this.cookieContainer.GetCookies (webRequest.RequestUri).GetEnumerator ();
int i = 0;
while (enumerator.MoveNext()) {
Cookie cookieFound = (Cookie)enumerator.Current;
SystemLogger.Log (SystemLogger.Module.CORE, "Found cookie on response: " + cookieFound.Name + "=" + cookieFound.Value);
IOCookie cookie = new IOCookie ();
cookie.Name = cookieFound.Name;
cookie.Value = cookieFound.Value;
response.Session.Cookies [i] = cookie;
i++;
}
if (ServiceType.OCTET_BINARY.Equals (service.Type)) {
if (responseMimeTypeOverride != null && !responseMimeTypeOverride.Equals (contentTypes [service.Type])) {
response.ContentType = responseMimeTypeOverride;
} else {
response.ContentType = contentTypes [service.Type];
}
response.ContentBinary = resultBinary; // Assign binary content here
} else {
response.ContentType = contentTypes [service.Type];
response.Content = result;
}
return response;
}
/// <summary>
///
/// </summary>
/// <param name="request"></param>
/// <param name="service"></param>
/// <returns></returns>
public virtual IOResponse InvokeService(IORequest request, IOService service)
{
IOResponse response = new IOResponse();
if (service != null)
{
if (service.Endpoint == null)
{
SystemLogger.Log(SystemLogger.Module.CORE, "No endpoint configured for this service name: " + service.Name);
return(response);
}
SystemLogger.Log(SystemLogger.Module.CORE, "Request content: " + request.Content);
byte[] requestData = request.GetRawContent();
String reqMethod = service.RequestMethod.ToString(); // default is POST
if (request.Method != null && request.Method != String.Empty)
{
reqMethod = request.Method.ToUpper();
}
String requestUriString = this.FormatRequestUriString(request, service, reqMethod);
Thread timeoutThread = null;
try {
// Security - VALIDATIONS
ServicePointManager.ServerCertificateValidationCallback = ValidateWebCertificates;
// Building Web Request to send
HttpWebRequest webReq = this.BuildWebRequest(request, service, requestUriString, reqMethod);
// Throw a new Thread to check absolute timeout
timeoutThread = new Thread(CheckInvokeTimeout);
timeoutThread.Start(webReq);
// POSTING DATA using timeout
if (!reqMethod.Equals(RequestMethod.GET.ToString()) && requestData != null)
{
// send data only for POST method.
SystemLogger.Log(SystemLogger.Module.CORE, "Sending data on the request stream... (POST)");
SystemLogger.Log(SystemLogger.Module.CORE, "request data length: " + requestData.Length);
using (Stream requestStream = webReq.GetRequestStream()) {
SystemLogger.Log(SystemLogger.Module.CORE, "request stream: " + requestStream);
requestStream.Write(requestData, 0, requestData.Length);
}
}
using (HttpWebResponse webResp = (HttpWebResponse)webReq.GetResponse()) {
SystemLogger.Log(SystemLogger.Module.CORE, "getting response...");
response = this.ReadWebResponse(webReq, webResp, service);
}
} catch (WebException ex) {
SystemLogger.Log(SystemLogger.Module.CORE, "WebException requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "WebException Requesting Service: " + requestUriString + ". Message: " + ex.Message;
} catch (Exception ex) {
SystemLogger.Log(SystemLogger.Module.CORE, "Unnandled Exception requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "Unhandled Exception Requesting Service: " + requestUriString + ". Message: " + ex.Message;
} finally {
// abort any previous timeout checking thread
if (timeoutThread != null && timeoutThread.IsAlive)
{
timeoutThread.Abort();
}
}
}
else
{
SystemLogger.Log(SystemLogger.Module.CORE, "Null service received for invoking.");
}
return(response);
}
/*
* private static Stream GetStreamForResponse(HttpWebResponse webResponse)
* {
* Stream stream;
* switch (webResponse.ContentEncoding.ToUpperInvariant())
* {
* case "GZIP":
* stream = new GZipStream(webResponse.GetResponseStream(), CompressionMode.Decompress);
* break;
* case "DEFLATE":
* stream = new DeflateStream(webResponse.GetResponseStream(), CompressionMode.Decompress);
* break;
*
* default:
* stream = webResponse.GetResponseStream();
* //stream.ReadTimeout = readTimeOut;
* break;
* }
* return stream;
* }
*/
private IOResponse ReadWebResponse(HttpWebRequest webRequest, HttpWebResponse webResponse, IOService service)
{
IOResponse response = new IOResponse();
// result types (string or byte array)
byte[] resultBinary = null;
string result = null;
string responseMimeTypeOverride = webResponse.GetResponseHeader("Content-Type");
using (Stream stream = webResponse.GetResponseStream()) {
SystemLogger.Log(SystemLogger.Module.CORE, "getting response stream...");
if (ServiceType.OCTET_BINARY.Equals(service.Type))
{
int lengthContent = -1;
if (webResponse.GetResponseHeader("Content-Length") != null && webResponse.GetResponseHeader("Content-Length") != "")
{
lengthContent = Int32.Parse(webResponse.GetResponseHeader("Content-Length"));
}
// testing log line
// SystemLogger.Log (SystemLogger.Module.CORE, "content-length header: " + lengthContent +", max file size: " + MAX_BINARY_SIZE);
int bufferReadSize = DEFAULT_BUFFER_READ_SIZE;
if (lengthContent >= 0 && lengthContent <= bufferReadSize)
{
bufferReadSize = lengthContent;
}
if (lengthContent > MAX_BINARY_SIZE)
{
SystemLogger.Log(SystemLogger.Module.CORE,
"WARNING! - file exceeds the maximum size defined in platform (" + MAX_BINARY_SIZE + " bytes)");
}
else
{
// Read to end of stream in blocks
SystemLogger.Log(SystemLogger.Module.CORE, "buffer read: " + bufferReadSize + " bytes");
MemoryStream memBuffer = new MemoryStream();
byte[] readBuffer = new byte[bufferReadSize];
int readLen = 0;
do
{
readLen = stream.Read(readBuffer, 0, readBuffer.Length);
memBuffer.Write(readBuffer, 0, readLen);
} while (readLen > 0);
resultBinary = memBuffer.ToArray();
memBuffer.Close();
memBuffer = null;
}
}
else
{
SystemLogger.Log(SystemLogger.Module.CORE, "reading response content...");
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8)) {
result = reader.ReadToEnd();
}
}
}
/*************
* CACHE
*************/
// preserve cache-control header from remote server, if any
string cacheControlHeader = webResponse.GetResponseHeader("Cache-Control");
if (cacheControlHeader != null && cacheControlHeader != "")
{
SystemLogger.Log(SystemLogger.Module.CORE, "Found Cache-Control header on response: " + cacheControlHeader + ", using it on internal response...");
if (response.Headers == null)
{
response.Headers = new IOHeader[1];
}
IOHeader cacheHeader = new IOHeader();
cacheHeader.Name = "Cache-Control";
cacheHeader.Value = cacheControlHeader;
response.Headers[0] = cacheHeader;
}
/*************
* COOKIES HANDLING
*************/
// get response cookies (stored on cookiecontainer)
if (response.Session == null)
{
response.Session = new IOSessionContext();
}
response.Session.Cookies = new IOCookie[this.cookieContainer.Count];
IEnumerator enumerator = this.cookieContainer.GetCookies(webRequest.RequestUri).GetEnumerator();
int i = 0;
while (enumerator.MoveNext())
{
Cookie cookieFound = (Cookie)enumerator.Current;
SystemLogger.Log(SystemLogger.Module.CORE, "Found cookie on response: " + cookieFound.Name + "=" + cookieFound.Value);
IOCookie cookie = new IOCookie();
cookie.Name = cookieFound.Name;
cookie.Value = cookieFound.Value;
response.Session.Cookies [i] = cookie;
i++;
}
if (ServiceType.OCTET_BINARY.Equals(service.Type))
{
if (responseMimeTypeOverride != null && !responseMimeTypeOverride.Equals(contentTypes [service.Type]))
{
response.ContentType = responseMimeTypeOverride;
}
else
{
response.ContentType = contentTypes [service.Type];
}
response.ContentBinary = resultBinary; // Assign binary content here
}
else
{
response.ContentType = contentTypes [service.Type];
response.Content = result;
}
return(response);
}
private async Task<IOResponse> ReadWebResponse(HttpRequestMessage webRequest, HttpResponseMessage webResponse, IOService service)
{
var response = new IOResponse();
// result types (string or byte array)
byte[] resultBinary = null;
string result = null;
var responseMimeTypeOverride = webResponse.Content.Headers.ContentType.MediaType;
using (var stream = (await webResponse.Content.ReadAsInputStreamAsync()).AsStreamForRead())
{
WindowsPhoneUtils.Log("getting response stream...");
if (ServiceType.OCTET_BINARY.Equals(service.Type))
{
var lengthContent = (int)webResponse.Content.Headers.ContentLength;
// testing log line
// SystemLogger.Log (SystemLogger.Module.CORE, "content-length header: " + lengthContent +", max file size: " + MAX_BINARY_SIZE);
var bufferReadSize = DEFAULT_BUFFER_READ_SIZE;
if (lengthContent >= 0 && lengthContent <= bufferReadSize)
{
bufferReadSize = lengthContent;
}
if (lengthContent > MAX_BINARY_SIZE)
{
WindowsPhoneUtils.Log("WARNING! - file exceeds the maximum size defined in platform (" + MAX_BINARY_SIZE + " bytes)");
}
else
{
// Read to end of stream in blocks
WindowsPhoneUtils.Log("buffer read: " + bufferReadSize + " bytes");
var memBuffer = new MemoryStream();
var readBuffer = new byte[bufferReadSize];
int readLen;
do
{
//readLen = stream.Read(readBuffer, 0, readBuffer.Length);
readLen = await stream.ReadAsync(readBuffer, 0, readBuffer.Length);
memBuffer.Write(readBuffer, 0, readLen);
} while (readLen > 0);
resultBinary = memBuffer.ToArray();
memBuffer.Flush();
}
}
else
{
WindowsPhoneUtils.Log("reading response content...");
using (var reader = new StreamReader(stream, Encoding.UTF8))
{
result = reader.ReadToEnd();
WindowsPhoneUtils.Log("Response Content: " + result);
}
}
}
/*************
* CACHE
************
// preserve cache-control header from remote server, if any
var cacheControlHeader = (webResponse.Headers.CacheControl != null) ? webResponse.Headers.CacheControl.ToString() : String.Empty;
if (!String.IsNullOrWhiteSpace(cacheControlHeader))
{
WindowsPhoneUtils.Log("Found Cache-Control header on response: " + cacheControlHeader + ", using it on internal response...");
if (response.Headers == null)
{
response.Headers = new IOHeader[1];
}
var cacheHeader = new IOHeader { Name = "Cache-Control", Value = cacheControlHeader };
response.Headers[0] = cacheHeader;
}
*/
/*************
* HEADERS HANDLING
*************/
if (webResponse.Headers != null)
{
response.Headers = new IOHeader[webResponse.Headers.Count];
var size = 0;
foreach (var headerKey in webResponse.Headers.Keys)
{
string headerValue;
webResponse.Headers.TryGetValue(headerKey, out headerValue);
var objHeader = new IOHeader { Name = headerKey, Value = headerValue };
response.Headers[size++] = objHeader;
}
}
/*************
* COOKIES HANDLING
*************/
// get response cookies (stored on cookiecontainer)
if (response.Session == null)
{
response.Session = new IOSessionContext();
}
var filter = new HttpBaseProtocolFilter();
var cookieCollection = filter.CookieManager.GetCookies(webRequest.RequestUri);
var myCookies = new List<IOCookie>();
foreach (var cookieFound in cookieCollection)
{
var value = cookieFound.ToString().Replace(String.Concat(cookieFound.Name, "="), String.Empty);
WindowsPhoneUtils.Log("Found cookie on response: " + cookieFound.Name + "=" + value);
if (cookieFound.ToString().Split(new string[] { "Path=" }, StringSplitOptions.None).Length > 2 || cookieFound.ToString().Split(new string[] { "Domain=" }, StringSplitOptions.None).Length > 2) continue;
WindowsPhoneUtils.Log("Added cookie to response: " + cookieFound.Name + "=" + value);
var cookie = new IOCookie { Name = cookieFound.Name, Value = value };
myCookies.Add(cookie);
}
response.Session.Cookies = myCookies.ToArray();
if (ServiceType.OCTET_BINARY.Equals(service.Type))
{
if (responseMimeTypeOverride != null && !responseMimeTypeOverride.Equals(ContentTypes[service.Type]))
{
response.ContentType = responseMimeTypeOverride;
}
else
{
response.ContentType = ContentTypes[service.Type];
}
response.ContentBinary = resultBinary; // Assign binary content here
}
else
{
response.ContentType = ContentTypes[service.Type];
response.Content = result;
}
return response;
}
public override async Task<IOResponse> InvokeService(IORequest request, IOService service)
{
var response = new IOResponse();
var clientBaseConfig = WindowsPhoneUtils.CreateHttpClientOptions(!request.StopAutoRedirect);
if (service != null)
{
if (service.Endpoint == null)
{
WindowsPhoneUtils.Log("No endpoint configured for this service name: " + service.Name);
return null;
}
WindowsPhoneUtils.Log("Request content: " + request.Content);
var reqMethod = service.RequestMethod.ToString(); // default is POST
if (!string.IsNullOrEmpty(request.Method)) reqMethod = request.Method.ToUpper();
var requestUriString = FormatRequestUriString(request, service, reqMethod);
HttpRequestMessage webReq = null;
try
{
webReq = await BuildWebRequest(request, service, requestUriString, reqMethod);
using (var client = new HttpClient(clientBaseConfig))
{
//ONLY DEFINE PROPERTIES ONCE, IF A REQUEST HAS BEEN SENT, HTTPCLIENT CANNOT MODIFY PROPERTIES
client.DefaultRequestHeaders.TryAppendWithoutValidation("User-Agent", IOUserAgent);
var cts = new CancellationTokenSource(new TimeSpan(0, 0, DEFAULT_RESPONSE_TIMEOUT));
var webResp = await client.SendRequestAsync(webReq).AsTask(cts.Token);
WindowsPhoneUtils.Log("getting response... ");
response = await ReadWebResponse(webReq, webResp, service);
}
}
catch (Exception ex)
{
//Certificate errors
if ((ex.HResult & 65535) == 12045)
{
if (webReq != null)
{
var certErrors = webReq.TransportInformation.ServerCertificateErrors;
}
}
WindowsPhoneUtils.Log("Exception requesting service: " + requestUriString + "." + ex.Message);
response.ContentType = ContentTypes[ServiceType.REST_JSON];
response.Content = "Exception Requesting Service: " + requestUriString + ". Message: " + ex.Message;
}
}
else
{
WindowsPhoneUtils.Log("Null service received for invoking.");
}
return response;
}
/// <summary>
///
/// </summary>
/// <param name="request"></param>
/// <param name="service"></param>
/// <returns></returns>
public virtual IOResponse InvokeService(IORequest request, IOService service)
{
IOResponse response = new IOResponse ();
if (service != null) {
SystemLogger.Log (SystemLogger.Module .CORE, "Request content: " + request.Content);
byte[] requestData = request.GetRawContent ();
if (service.Endpoint == null) {
SystemLogger.Log (SystemLogger.Module .CORE, "No endpoint configured for this service name: " + service.Name);
return response;
}
string requestUriString = String.Format ("{0}:{1}{2}", service.Endpoint.Host, service.Endpoint.Port, service.Endpoint.Path);
if (service.Endpoint.Port == 0) {
requestUriString = String.Format ("{0}{1}", service.Endpoint.Host, service.Endpoint.Path);
}
if (service.RequestMethod == RequestMethod.GET && request.Content != null) {
// add request content to the URI string when GET method.
requestUriString += request.Content;
}
SystemLogger.Log (SystemLogger.Module .CORE, "Requesting service: " + requestUriString);
try {
ServicePointManager.ServerCertificateValidationCallback += delegate(object sender,X509Certificate certificate, X509Chain chain, SslPolicyErrors sslPolicyErrors) {
SystemLogger.Log (SystemLogger.Module .CORE, "*************** On ServerCertificateValidationCallback: accept all certificates");
return true;
};
HttpWebRequest req = (HttpWebRequest)WebRequest.Create (requestUriString);
req.Method = service.RequestMethod.ToString (); // default is POST
req.ContentType = contentTypes [service.Type];
// check specific request ContentType defined, and override service type in that case
if (request.ContentType != null && request.ContentType.Length > 0) {
req.ContentType = request.ContentType;
}
SystemLogger.Log (SystemLogger.Module.CORE, "Request content type: " + req.ContentType);
SystemLogger.Log (SystemLogger.Module.CORE, "Request method: " + req.Method);
req.Accept = req.ContentType; // setting "Accept" header with the same value as "Content Type" header, it is needed to be defined for some services.
req.ContentLength = request.GetContentLength ();
SystemLogger.Log (SystemLogger.Module.CORE, "Request content length: " + req.ContentLength);
req.Timeout = DEFAULT_RESPONSE_TIMEOUT; // in millisecods (default is 10 seconds)
req.KeepAlive = false;
// user agent needs to be informed - some servers check this parameter and send 500 errors when not informed.
req.UserAgent = this.IOUserAgent;
SystemLogger.Log (SystemLogger.Module.CORE, "Request UserAgent : " + req.UserAgent);
// add specific headers to the request
if (request.Headers != null && request.Headers.Length > 0) {
foreach (IOHeader header in request.Headers) {
req.Headers.Add (header.Name, header.Value);
SystemLogger.Log (SystemLogger.Module.CORE, "Added request header: " + header.Name + "=" + req.Headers.Get (header.Name));
}
}
// Assign the cookie container on the request to hold cookie objects that are sent on the response.
// Required even though you no cookies are send.
req.CookieContainer = this.cookieContainer;
// add cookies to the request cookie container
if (request.Session != null && request.Session.Cookies != null && request.Session.Cookies.Length > 0) {
foreach (IOCookie cookie in request.Session.Cookies) {
req.CookieContainer.Add (req.RequestUri, new Cookie (cookie.Name, cookie.Value));
SystemLogger.Log (SystemLogger.Module.CORE, "Added cookie [" + cookie.Name + "] to request.");
}
}
SystemLogger.Log (SystemLogger.Module.CORE, "HTTP Request cookies: " + req.CookieContainer.GetCookieHeader (req.RequestUri));
if (service.Endpoint.ProxyUrl != null) {
WebProxy myProxy = new WebProxy ();
Uri proxyUri = new Uri (service.Endpoint.ProxyUrl);
myProxy.Address = proxyUri;
req.Proxy = myProxy;
}
if (req.Method == RequestMethod.POST.ToString ()) {
// send data only for POST method.
SystemLogger.Log (SystemLogger.Module.CORE, "Sending data on the request stream... (POST)");
SystemLogger.Log (SystemLogger.Module.CORE, "request data length: " + requestData.Length);
using (Stream requestStream = req.GetRequestStream()) {
SystemLogger.Log (SystemLogger.Module.CORE, "request stream: " + requestStream);
requestStream.Write (requestData, 0, requestData.Length);
}
}
string result = null;
byte[] resultBinary = null;
string responseMimeTypeOverride = null;
using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse()) {
SystemLogger.Log (SystemLogger.Module.CORE, "getting response...");
using (Stream stream = resp.GetResponseStream()) {
SystemLogger.Log (SystemLogger.Module.CORE, "getting response stream...");
if (ServiceType.OCTET_BINARY.Equals (service.Type)) {
// TODO workaround to avoid problems when serving binary content (corrupted content)
Thread.Sleep (500);
int lengthContent = 0;
if (resp.GetResponseHeader ("Content-Length") != null && resp.GetResponseHeader ("Content-Length") != "") {
lengthContent = Int32.Parse (resp.GetResponseHeader ("Content-Length"));
}
if (lengthContent > 0) {
// Read in block
resultBinary = new byte[lengthContent];
stream.Read (resultBinary, 0, lengthContent);
} else {
// Read to end of stream
MemoryStream memBuffer = new MemoryStream ();
byte[] readBuffer = new byte[256];
int readLen = 0;
do {
readLen = stream.Read (readBuffer, 0, readBuffer.Length);
memBuffer.Write (readBuffer, 0, readLen);
} while (readLen >0);
resultBinary = memBuffer.ToArray ();
memBuffer.Close ();
memBuffer = null;
}
} else {
SystemLogger.Log (SystemLogger.Module.CORE, "reading response content...");
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8)) {
result = reader.ReadToEnd ();
}
}
}
responseMimeTypeOverride = resp.GetResponseHeader ("Content-Type");
// get response cookies (stored on cookiecontainer)
if (response.Session == null) {
response.Session = new IOSessionContext ();
}
response.Session.Cookies = new IOCookie[this.cookieContainer.Count];
IEnumerator enumerator = this.cookieContainer.GetCookies (req.RequestUri).GetEnumerator ();
int i = 0;
while (enumerator.MoveNext()) {
Cookie cookieFound = (Cookie)enumerator.Current;
SystemLogger.Log (SystemLogger.Module.CORE, "Found cookie on response: " + cookieFound.Name + "=" + cookieFound.Value);
IOCookie cookie = new IOCookie ();
cookie.Name = cookieFound.Name;
cookie.Value = cookieFound.Value;
response.Session.Cookies [i] = cookie;
i++;
}
}
if (ServiceType.OCTET_BINARY.Equals (service.Type)) {
if (responseMimeTypeOverride != null && !responseMimeTypeOverride.Equals (contentTypes [service.Type])) {
response.ContentType = responseMimeTypeOverride;
} else {
response.ContentType = contentTypes [service.Type];
}
response.ContentBinary = resultBinary; // Assign binary content here
} else {
response.ContentType = contentTypes [service.Type];
response.Content = result;
}
} catch (WebException ex) {
SystemLogger.Log (SystemLogger.Module .CORE, "WebException requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "WebException Requesting Service: " + requestUriString + ". Message: " + ex.Message;
} catch (Exception ex) {
SystemLogger.Log (SystemLogger.Module .CORE, "Unnandled Exception requesting service: " + requestUriString + ".", ex);
response.ContentType = contentTypes [ServiceType.REST_JSON];
response.Content = "Unhandled Exception Requesting Service: " + requestUriString + ". Message: " + ex.Message;
}
} else {
SystemLogger.Log (SystemLogger.Module .CORE, "Null service received for invoking.");
}
return response;
}