/// <summary>
/// Clones a HttpContent instance
/// </summary>
/// <param name="content">The HttpContent to clone</param>
/// <returns>A copy of the HttpContent</returns>
public static HttpContent Clone(this HttpContent content)
{
if (content == null)
{
return(null);
}
HttpContent clone;
switch (content)
{
case StringContent sc:
clone = new StringContent(sc.ReadAsStringAsync().Result);
break;
default:
throw new Exception($"{content.GetType()} Content type not implemented for HttpContent.Clone extension method.");
}
clone.Headers.Clear();
foreach (KeyValuePair <string, IEnumerable <string> > header in content.Headers)
{
clone.Headers.Add(header.Key, header.Value);
}
return(clone);
}
public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
{
long excuteTime = 0;
string inparam = "";
string outparam = "";
string func = actionExecutedContext.Request.RequestUri.AbsolutePath;
if (actionExecutedContext.Request.Properties.ContainsKey(key))
{
Stopwatch stopwatch = actionExecutedContext.Request.Properties[key] as Stopwatch;
if (stopwatch != null)
{
stopwatch.Stop();
excuteTime = stopwatch.ElapsedMilliseconds;
}
}
object obj;
if (actionExecutedContext.ActionContext.ActionArguments.TryGetValue(inparamName, out obj))
{
inparam = JsonConvert.SerializeObject(obj);
BasicModelRequest request = JsonConvert.DeserializeObject <BasicModelRequest>(inparam);
HttpContent responseContent = actionExecutedContext.Response.Content;
object responseObj =
responseContent.GetType().GetProperty("Value")?.GetValue(responseContent);
outparam = JsonConvert.SerializeObject(responseObj);
LogHelper.Current.WriteInfoLog(new LogEnt(func, request.user_id, inparam, outparam, excuteTime));
}
}
protected async Task <(bool result, dynamic contentValue)> HandleMessageContentAsync(HttpContent httpContent)
{
(bool result, dynamic contentValue) = await HttpContentReader.ReadAsync(httpContent);
if (!result)
{
Logger.ContentNotSupported(httpContent.GetType().FullName);
return(false, default);
/// <summary>
/// Serializes the specified content.
/// </summary>
/// <param name="bytes">The bytes.</param>
/// <param name="offset">The offset.</param>
/// <param name="content">The content.</param>
/// <returns></returns>
public static int Serialize(ref byte[] bytes, int offset, HttpContent content)
{
if (content is null)
{
return(MessagePackBinary.WriteNil(ref bytes, offset));
}
int startOffset = offset;
offset += MessagePackBinary.WriteFixedArrayHeaderUnsafe(ref bytes, offset, 3);
// If we know the type, store a byte to indicate which one it is
if (!_knownTypes.TryGetValue(content.GetType(), out byte type))
{
type = 0;
}
offset += MessagePackBinary.WriteByte(ref bytes, offset, type);
// Headers
if (content.Headers == null)
{
MessagePackBinary.WriteNil(ref bytes, offset);
offset++;
}
else
{
KeyValuePair <string, IEnumerable <string> >[] headers = content.Headers.ToArray();
offset += MessagePackBinary.WriteMapHeader(ref bytes, offset, headers.Length);
foreach (KeyValuePair <string, IEnumerable <string> > kvp in headers)
{
// See http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2 Header names are not case-sensitive
// so we normalize to lower case
offset += MessagePackBinary.WriteString(ref bytes, offset, kvp.Key.ToLowerInvariant());
string[] values = kvp.Value.ToArray();
offset += MessagePackBinary.WriteFixedArrayHeaderUnsafe(ref bytes, offset, values.Length);
foreach (string v in values)
{
offset += MessagePackBinary.WriteString(ref bytes, offset, v);
}
}
}
// All content is written out as a byte array
offset += MessagePackBinary.WriteBytes(ref bytes, offset,
content.ReadAsByteArrayAsync().Result);
return(offset - startOffset);
}
/// <summary>
/// Tests whether the content of the HTTP response message is of certain type.
/// </summary>
/// <typeparam name="TContentType">Type of expected HTTP content.</typeparam>
/// <param name="content">Actual HTTP content.</param>
/// <param name="failedValidationAction">Action to call in case of failed validation.</param>
public static void WithContentOfType <TContentType>(
HttpContent content,
Action <string, string, string> failedValidationAction)
where TContentType : HttpContent
{
var expectedType = typeof(TContentType);
var actualType = content.GetType();
if (Reflection.AreNotAssignable(actualType, expectedType))
{
failedValidationAction(
"content",
string.Format("to be {0}", expectedType.ToFriendlyTypeName()),
string.Format("was in fact {0}", actualType.ToFriendlyTypeName()));
}
}
public static async Task <PreventDisposeContentWrapper> CreateWrapperAsync(HttpContent wrappedContent)
{
if (wrappedContent == null)
{
return(new PreventDisposeContentWrapper(new byte[0], null));
}
var bytes = await wrappedContent.ReadAsByteArrayAsync();
var wrapper = new PreventDisposeContentWrapper(bytes, wrappedContent.GetType());
foreach (var header in wrappedContent.Headers)
{
wrapper.Headers.Add(header.Key, header.Value);
}
return(wrapper);
}
public static object HttpContentToByteArray(HttpContent httpContent)
{
if (httpContent is HttpContent content)
{
return(content.ReadAsByteArrayAsync().Result);
}
else
{
throw new ArgumentException($"Argument type is not equal, {nameof(httpContent)} :{httpContent?.GetType().FullName}");
}
}
internal static Task CreateErrorResponseAsync(HttpContextBase httpContextBase, HttpContent responseContent, HttpRequestMessage request, Exception exception)
{
Contract.Assert(httpContextBase != null);
Contract.Assert(responseContent != null);
Contract.Assert(exception != null);
Contract.Assert(request != null);
HttpResponseBase httpResponseBase = httpContextBase.Response;
HttpResponseMessage errorResponse = null;
HttpResponseException responseException = exception as HttpResponseException;
// Ensure all headers and content are cleared to eliminate any partial results.
ClearContentAndHeaders(httpResponseBase);
// If the exception we are handling is HttpResponseException,
// that becomes the error response.
if (responseException != null)
{
errorResponse = responseException.Response;
}
else
{
// The exception is not HttpResponseException.
// Create a 500 response with content containing an explanatory message and
// stack trace, subject to content negotiation and policy for error details.
try
{
MediaTypeHeaderValue mediaType = responseContent.Headers.ContentType;
string messageDetails = (mediaType != null)
? Error.Format(
SRResources.Serialize_Response_Failed_MediaType,
responseContent.GetType().Name,
mediaType)
: Error.Format(
SRResources.Serialize_Response_Failed,
responseContent.GetType().Name);
errorResponse = request.CreateErrorResponse(
HttpStatusCode.InternalServerError,
new InvalidOperationException(messageDetails, exception));
// CreateErrorResponse will choose 406 if it cannot find a formatter,
// but we want our default error response to be 500 always
errorResponse.StatusCode = HttpStatusCode.InternalServerError;
}
catch
{
// Failed creating an HttpResponseMessage for the error response.
// This can happen for missing config, missing conneg service, etc.
// Create an empty error response and return a non-faulted task.
CreateEmptyErrorResponse(httpResponseBase);
return(TaskHelpers.Completed());
}
}
Contract.Assert(errorResponse != null);
CopyResponseStatusAndHeaders(httpContextBase, errorResponse);
// The error response may return a null content if content negotiation
// fails to find a formatter, or this may be an HttpResponseException without
// content. In either case, cleanup and return a completed task.
if (errorResponse.Content == null)
{
errorResponse.Dispose();
return(TaskHelpers.Completed());
}
// Copy the headers from the newly generated HttpResponseMessage.
// We must ask the content for its content length because Content-Length
// is lazily computed and added to the headers.
var unused = errorResponse.Content.Headers.ContentLength;
CopyHeaders(errorResponse.Content.Headers, httpContextBase);
return(CreateErrorResponseAsyncCore(errorResponse, httpResponseBase));
}
// Send HttpContent, used by all above methods, accept any of the HttpContent sub-classes
// FormUrlEncodedContent: A container for name/value tuples encoded using application/x-www-form-urlencoded MIME type.
// MultipartContent: Provides a collection of HttpContent objects that get serialized using the multipart/* content type specification.
// MultipartFormDataContent: Provides a container for content encoded using multipart/form-data MIME type. (Use this format if you are uploading a file to a server)
// StreamContent: Provides HTTP content based on a stream.
// StringContent: Provides HTTP content based on a string.
// ObjectContent: Contains a value as well as an associated MediaTypeFormatter that will be used to serialize the value when writing this content.
// ObjectContent comes from the System.Net.Http.Formatting assembly provided by package Microsoft.AspNet.WebApi.Client
// HttpContent: A base class representing an HTTP entity body and content headers.
public virtual async Task <ApiResponse> SendAsync(HttpMethod method, string resourcePath, HttpContent content = null)
{
// Create the context here so we have access to it in the catch block
Polly.Context context = new Polly.Context();
//Create the Request
HttpRequestMessage request = new HttpRequestMessage(method, resourcePath);
if (content != null)
{
request.Content = content;
}
else
{
// content is normally provided for post and put methods
if (method == HttpMethod.Post || method == HttpMethod.Put)
{
_logger.LogDebug($"{DateTime.Now.ToString()} : SendAsync: The HttpContent is null for POST or PUT request!");
}
}
// Set the PolicyExecutionContext so that it is available after execution of the request
// https://github.com/App-vNext/Polly/issues/505
request.SetPolicyExecutionContext(context);
request.SetResourcePath(resourcePath);
// Make the request
RequestCount++;
PendingRequestCount++;
LastRequestTimeStamp = DateTime.UtcNow;
var requestTimer = new Stopwatch();
try {
if (content == null)
{
_logger.LogDebug($"{DateTime.Now.ToString()} : SendAsync: Sending request with Method: {method?.ToString()} HttpContent is null, RequestUri: {request.RequestUri}");
}
else
{
_logger.LogDebug($"{DateTime.Now.ToString()} : SendAsync: Sending request with Method: {method?.ToString()} HttpContent Type: \"{content?.GetType()?.Name?.ToString()}\" RequestUri: {request.RequestUri}");
}
requestTimer.Start();
using (var response = await _client.SendAsync(request, CancellationTokenSource.Token)) {
requestTimer.Stop();
TransferRetryInfo(response.RequestMessage, context);
return(await _apiResponseBuilder.GetApiResponse(response, resourcePath, requestTimer));
}
} catch (Exception exception) {
// Handles communication errors such as "Connection Refused" etc.
// Network failures (System.Net.Http.HttpRequestException)
// Timeouts (System.IO.IOException)
requestTimer.Stop();
TransferRetryInfo(exception, context);
return(_apiResponseBuilder.GetApiResponseForException(exception, request, resourcePath, requestTimer));
} finally {
PendingRequestCount--;
}
}
/// <summary> /// Returns true if the content is filled. /// </summary> /// <param name="content">The content to check..</param> /// <returns><c>true</c> if there is content; <c>false</c> otherwise.</returns> internal static bool HasContent(this HttpContent content) => content != null && content.GetType().Name != "EmptyContent";
private static void HandleWebHostBufferedContentException(ExceptionHandlerContext context)
{
Contract.Assert(context != null);
ExceptionContext exceptionContext = context.ExceptionContext;
Contract.Assert(exceptionContext != null);
Exception exception = exceptionContext.Exception;
Contract.Assert(exception != null);
HttpRequestMessage request = exceptionContext.Request;
if (request == null)
{
throw new ArgumentException(Error.Format(SRResources.TypePropertyMustNotBeNull,
typeof(ExceptionContext).Name, "Request"), "context");
}
HttpResponseMessage response = exceptionContext.Response;
if (response == null)
{
throw new ArgumentException(Error.Format(SRResources.TypePropertyMustNotBeNull,
typeof(ExceptionContext).Name, "Response"), "context");
}
HttpContent responseContent = response.Content;
if (responseContent == null)
{
throw new ArgumentException(Error.Format(SRResources.TypePropertyMustNotBeNull,
typeof(HttpResponseMessage).Name, "Content"), "context");
}
HttpResponseMessage errorResponse;
// Create a 500 response with content containing an explanatory message and
// stack trace, subject to content negotiation and policy for error details.
try
{
MediaTypeHeaderValue mediaType = responseContent.Headers.ContentType;
string messageDetails = (mediaType != null)
? Error.Format(
SRResources.Serialize_Response_Failed_MediaType,
responseContent.GetType().Name,
mediaType)
: Error.Format(
SRResources.Serialize_Response_Failed,
responseContent.GetType().Name);
errorResponse = request.CreateErrorResponse(
HttpStatusCode.InternalServerError,
new InvalidOperationException(messageDetails, exception));
// CreateErrorResponse will choose 406 if it cannot find a formatter,
// but we want our default error response to be 500 always
errorResponse.StatusCode = HttpStatusCode.InternalServerError;
}
catch
{
// Failed creating an HttpResponseMessage for the error response.
// This can happen for missing config, missing conneg service, etc.
// Create an empty error response and return a non-faulted task.
errorResponse = request.CreateResponse(HttpStatusCode.InternalServerError);
}
context.Result = new ResponseMessageResult(errorResponse);
}
