private static RequestDelegate CreateRouteHandler(
string path, CarterModule module, IEnumerable <IStatusCodeHandler> statusCodeHandlers, ILogger logger)
{
return(async ctx =>
{
if (!module.Routes.TryGetValue((ctx.Request.Method, path), out var routeHandler))
{
// if the path was registered but a handler matching the
// current method was not found, return MethodNotFound
ctx.Response.StatusCode = StatusCodes.Status405MethodNotAllowed;
return;
}
// begin handling the request
if (HttpMethods.IsHead(ctx.Request.Method))
{
//Cannot read the default stream once WriteAsync has been called on it
ctx.Response.Body = new MemoryStream();
}
// run the module handlers
bool shouldContinue = true;
if (module.Before != null)
{
shouldContinue = await module.Before(ctx);
}
if (shouldContinue)
{
// run the route handler
logger.LogDebug("Executing module route handler for {Method} /{Path}", ctx.Request.Method, path);
await routeHandler(ctx);
// run after handler
if (module.After != null)
{
await module.After(ctx);
}
}
// run status code handler
var scHandler = statusCodeHandlers.FirstOrDefault(x => x.CanHandle(ctx.Response.StatusCode));
if (scHandler != null)
{
await scHandler.Handle(ctx);
}
if (HttpMethods.IsHead(ctx.Request.Method))
{
var length = ctx.Response.Body.Length;
ctx.Response.Body.SetLength(0);
ctx.Response.ContentLength = length;
}
});
}
/// <inheritdoc />
public void OnResourceExecuting(ResourceExecutingContext context)
{
if (context == null)
{
throw new System.ArgumentNullException(nameof(context));
}
var routeData = context.RouteData;
var request = context.HttpContext.Request;
if (routeData.TryGetWebHookReceiverName(out var receiverName) &&
(HttpMethods.IsGet(request.Method) || HttpMethods.IsHead(request.Method)))
{
var getHeadRequestMetadata = _getHeadRequestMetadata
.FirstOrDefault(metadata => metadata.IsApplicable(receiverName));
if (getHeadRequestMetadata != null)
{
// First verify that we have the secret key configuration value. This may be redundant if the
// receiver also implements IWebHookVerifyCodeMetadata in its metadata. However this verification
// is necessary for some receivers because signature verification (for example) is not possible
// without a body.
var secretKey = GetSecretKey(
receiverName,
routeData,
getHeadRequestMetadata.SecretKeyMinLength,
getHeadRequestMetadata.SecretKeyMaxLength);
if (secretKey == null)
{
context.Result = new NotFoundResult();
return;
}
if (HttpMethods.IsHead(request.Method))
{
if (getHeadRequestMetadata.AllowHeadRequests)
{
// Success #1
context.Result = new OkResult();
}
// Never respond to a HEAD request with a challenge response.
return;
}
if (getHeadRequestMetadata.ChallengeQueryParameterName == null)
{
// Success #2: Simple GET case. Have done all necessary verification.
context.Result = new OkResult();
return;
}
// Success #3 unless required query parameter is missing.
context.Result = GetChallengeResponse(getHeadRequestMetadata, receiverName, request, routeData);
}
}
}
private static bool ShouldValidate(HttpContext context)
{
// as seen on https://github.com/aspnet/AspNetCore/blob/release/3.0/src/Mvc/Mvc.ViewFeatures/src/Filters/AutoValidateAntiforgeryTokenAuthorizationFilter.cs
var method = context.Request.Method;
return(!(HttpMethods.IsGet(method) ||
HttpMethods.IsHead(method) ||
HttpMethods.IsTrace(method) ||
HttpMethods.IsOptions(method)));
}
public override bool AttemptResponseCaching(ResponseCachingContext context)
{
var request = context.HttpContext.Request;
if (!HttpMethods.IsGet(request.Method) && !HttpMethods.IsHead(request.Method))
{
context.Logger.LogRequestMethodNotCacheable(request.Method);
return(false);
}
return(true);
}
public async Task InvokeAsync(HttpContext context, RequestDelegate next)
{
if (HttpMethods.IsGet(context.Request.Method) || HttpMethods.IsHead(context.Request.Method))
{
context.Response.StatusCode = StatusCodes.Status200OK;
await context.Response.WriteAsync("I'm alive");
}
else
{
context.Response.StatusCode = StatusCodes.Status404NotFound;
}
}
private static HttpRequestMessage CreateProxiedHttpRequest(this HttpContext context, string uriString, bool shouldAddForwardedHeaders)
{
var uri = new Uri(uriString);
var request = context.Request;
var requestMessage = new HttpRequestMessage();
var requestMethod = request.Method;
var usesStreamContent = true; // When using other content types, they specify the Content-Type header, and may also change the Content-Length.
// Write to request content, when necessary.
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
if (request.HasFormContentType)
{
usesStreamContent = false;
requestMessage.Content = request.Form.ToHttpContent(request.ContentType);
}
else
{
requestMessage.Content = new StreamContent(request.Body);
}
}
// Copy the request headers.
foreach (var header in request.Headers)
{
if (!usesStreamContent && (header.Key.Equals("Content-Type", StringComparison.OrdinalIgnoreCase) || header.Key.Equals("Content-Length", StringComparison.OrdinalIgnoreCase)))
{
continue;
}
if (!requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray()))
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
// Add forwarded headers.
if (shouldAddForwardedHeaders)
{
AddForwardedHeadersToHttpRequest(context, requestMessage);
}
// Set destination and method.
requestMessage.Headers.Host = uri.Authority;
requestMessage.RequestUri = uri;
requestMessage.Method = new HttpMethod(requestMethod);
return(requestMessage);
}
static bool SetupMethodAndContent(HttpRequest request, HttpRequestMessage proxiedMessage)
{
var hasContent = false;
var requestMethod = request.Method;
// Try to use the static HttpMethods rather than creating a new one.
if (HttpMethods.IsGet(requestMethod))
{
proxiedMessage.Method = HttpMethod.Get;
}
else if (HttpMethods.IsHead(requestMethod))
{
proxiedMessage.Method = HttpMethod.Head;
}
else if (HttpMethods.IsDelete(requestMethod))
{
proxiedMessage.Method = HttpMethod.Delete;
}
else if (HttpMethods.IsTrace(requestMethod))
{
proxiedMessage.Method = HttpMethod.Trace;
}
else
{
hasContent = true;
if (HttpMethods.IsPost(requestMethod))
{
proxiedMessage.Method = HttpMethod.Post;
}
else if (HttpMethods.IsOptions(requestMethod))
{
proxiedMessage.Method = HttpMethod.Options;
}
else if (HttpMethods.IsPut(requestMethod))
{
proxiedMessage.Method = HttpMethod.Put;
}
else if (HttpMethods.IsPatch(requestMethod))
{
proxiedMessage.Method = HttpMethod.Patch;
}
else
{
proxiedMessage.Method = new HttpMethod(request.Method);
}
proxiedMessage.Content = new StreamContent(request.Body);
}
return(hasContent);
}
private static void SetProxyRequestBody(HttpRequestMessage requestMessage, HttpContext context)
{
var requestMethod = context.Request.Method;
//previously had DELETE as a part of this but we were actually passing up body content as part of our delete wallet calls :-|
if (HttpMethods.IsGet(requestMethod) ||
HttpMethods.IsHead(requestMethod) ||
HttpMethods.IsTrace(requestMethod))
{
return;
}
requestMessage.Content = new StreamContent(context.Request.Body);
}
public async void HealthCheck_Get_Status200(string method)
{
var response = await _client.SendAsync(new HttpRequestMessage(new HttpMethod(method), "api/_system/healthcheck"));
if (!HttpMethods.IsHead(method) &&
!HttpMethods.IsDelete(method) &&
!HttpMethods.IsTrace(method))
{
Assert.Equal("system_ok", await response.Content.ReadAsStringAsync());
}
Assert.Equal(HttpStatusCode.OK, response.StatusCode);
}
private static void SetProxyRequestBody(HttpRequestMessage requestMessage, HttpContext context)
{
var requestMethod = context.Request.Method;
if (HttpMethods.IsGet(requestMethod) ||
HttpMethods.IsHead(requestMethod) ||
HttpMethods.IsDelete(requestMethod) ||
HttpMethods.IsTrace(requestMethod))
{
return;
}
requestMessage.Content = new StreamContent(context.Request.Body);
}
/// <summary>
/// Creates an HttpRequestMessage from the given context and assign the
/// returned HttpRequestMessage to the given destination.
/// </summary>
/// <param name="context">HttpContext to get HttpRequest from.</param>
/// <param name="destination">Destination of the HttpRequestMessage.</param>
/// <returns></returns>
public static HttpRequestMessage CreateProxyHttpRequest(HttpContext context, Uri destination)
{
/*
* Code copied an modified a little from AspNetCore Proxy middleware.
* https://github.com/aspnet/Proxy/blob/dev/src/Microsoft.AspNetCore.Proxy/ProxyAdvancedExtensions.cs
*/
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (destination == null)
{
throw new ArgumentNullException(nameof(destination));
}
// Get the request from the HttpContext.
var request = context.Request;
// Create an HttpRequestMessage.
var requestMessage = new HttpRequestMessage();
// Get request method from the HttpContext.
var requestMethod = request.Method;
// Copy content of the request body, if neccesary.
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
var streamContent = new StreamContent(request.Body);
requestMessage.Content = streamContent;
}
// Copy the request headers.
foreach (var header in request.Headers)
{
if (!requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray()))
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
// Copy host, request an so on from HttpContext request.
requestMessage.Headers.Host = destination.Authority;
requestMessage.RequestUri = destination;
requestMessage.Method = new HttpMethod(request.Method);
return(requestMessage);
}
public async Task Invoke(HttpContext context, IRedisManager redisManager)
{
try
{
var requestMessage = new HttpRequestMessage();
var requestMethod = context.Request.Method;
if (!HttpMethods.IsGet(requestMethod) && !HttpMethods.IsHead(requestMethod) && !HttpMethods.IsDelete(requestMethod) && !HttpMethods.IsTrace(requestMethod))
{
var streamContent = new StreamContent(context.Request.Body);
requestMessage.Content = streamContent;
}
// All request headers and cookies must be transferend to remote server. Some headers will be skipped
foreach (var header in context.Request.Headers)
{
if (!requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray()) && requestMessage.Content != null)
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
string uriString = GetUri(context, redisManager);
//recreate remote url
requestMessage.RequestUri = new Uri(uriString);
requestMessage.Method = new HttpMethod(context.Request.Method);
var responseMessage = await redisManager.GetConnection().SendAsync(requestMessage);
context.Response.StatusCode = (int)responseMessage.StatusCode;
foreach (var header in responseMessage.Headers)
{
context.Response.Headers[header.Key] = header.Value.ToArray();
}
foreach (var header in responseMessage.Content.Headers)
{
context.Response.Headers[header.Key] = header.Value.ToArray();
}
//tell to the browser that response is not chunked
//context.Response.Headers.Remove("transfer-encoding");
await responseMessage.Content.CopyToAsync(context.Response.Body);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
}
/// <summary>
/// Return a corresponding VerbsHttpMethod with the verb used in the request.
/// </summary>
/// <param name="context">ActionExecutingContext</param>
/// <returns>Return VerbsHttpMethod corresponding to the request.</returns>
public static VerbsHttpMethod GetVerbs(this ActionExecutingContext context)
{
var method = context.HttpContext.Request.Method;
if (HttpMethods.IsGet(method))
{
return(VerbsHttpMethod.Get);
}
if (HttpMethods.IsPost(method))
{
return(VerbsHttpMethod.Post);
}
if (HttpMethods.IsDelete(method))
{
return(VerbsHttpMethod.Delete);
}
if (HttpMethods.IsPut(method))
{
return(VerbsHttpMethod.Put);
}
if (HttpMethods.IsHead(method))
{
return(VerbsHttpMethod.Head);
}
if (HttpMethods.IsOptions(method))
{
return(VerbsHttpMethod.Options);
}
if (HttpMethods.IsPatch(method))
{
return(VerbsHttpMethod.Patch);
}
if (HttpMethods.IsTrace(method))
{
return(VerbsHttpMethod.Trace);
}
if (HttpMethods.IsConnect(method))
{
return(VerbsHttpMethod.Connect);
}
throw new HttpMethodNotFoundException($"Could not find the HttpMethod '{method}'");
}
private StreamContent GetStreamContent(HttpContext context)
{
var requestMethod = context.Request.Method;
if (HttpMethods.IsGet(requestMethod) ||
HttpMethods.IsHead(requestMethod) ||
HttpMethods.IsDelete(requestMethod) ||
HttpMethods.IsTrace(requestMethod))
{
return(null);
}
return(new StreamContent(context.Request.Body));
}
public async Task <HttpResponseMessage> Send(HttpContext httpContext, string url)
{
var requestMessage = new HttpRequestMessage();
var requestMethod = httpContext.Request.Method;
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
var streamContent = new StreamContent(httpContext.Request.Body);
requestMessage.Content = streamContent;
}
_httpClient.DefaultRequestHeaders.Clear();
CopyRequestHeaders(
httpContext.Request.Headers,
requestMessage.Headers,
requestMessage.Content?.Headers,
new HashSet <string>(StringComparer.OrdinalIgnoreCase)
{
"host"
} // Use HOST header for backend: it might use it for routing
);
requestMessage.RequestUri = new Uri(url);
requestMessage.Method = new HttpMethod(requestMethod);
try
{
Console.WriteLine("CALLING: " + url);
return(await _httpClient.SendAsync(
requestMessage,
HttpCompletionOption.ResponseHeadersRead,
httpContext.RequestAborted));
}
catch (HttpRequestException ex)
{
if (ex.InnerException?.GetType().Name == "CurlException")
{
var newEx = new HttpRequestException("Error requesting backend URL: " + url, ex);
newEx.Data.Add("url", url);
throw newEx;
}
throw;
}
}
/// <summary>
/// Converts the given HTTP method (usually obtained from <see cref="HttpRequest.Method"/>)
/// into the corresponding <see cref="HttpMethod"/> static instance.
/// </summary>
public static HttpMethod GetHttpMethod(string method)
{
if (HttpMethods.IsGet(method))
{
return(HttpMethod.Get);
}
if (HttpMethods.IsPost(method))
{
return(HttpMethod.Post);
}
if (HttpMethods.IsPut(method))
{
return(HttpMethod.Put);
}
if (HttpMethods.IsDelete(method))
{
return(HttpMethod.Delete);
}
if (HttpMethods.IsOptions(method))
{
return(HttpMethod.Options);
}
if (HttpMethods.IsHead(method))
{
return(HttpMethod.Head);
}
if (HttpMethods.IsPatch(method))
{
return(HttpMethod.Patch);
}
if (HttpMethods.IsTrace(method))
{
return(HttpMethod.Trace);
}
// NOTE: Proxying "CONNECT" is not supported (by design!)
//if (HttpMethods.IsConnect(method))
//{
// return new HttpMethod("CONNECT");
//}
throw new InvalidOperationException($"Unsupported request method '{method}'.");
}
private static void SetRequestBody(HttpRequestMessage message, HttpContext ctx)
{
var method = ctx.Request.Method;
if (HttpMethods.IsGet(method) || HttpMethods.IsDelete(method) || HttpMethods.IsHead(method) ||
HttpMethods.IsOptions(method))
{
return;
}
var content = new StreamContent(ctx.Request.Body);
message.Content = content;
}
private async Task HandleHttpRequest(HttpContext context)
{
var requestMessage = new HttpRequestMessage();
var requestMethod = context.Request.Method;
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
requestMessage.Content = new StreamContent(context.Request.Body);
}
foreach (var header in context.Request.Headers)
{
if (!requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray()) && requestMessage.Content != null)
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
requestMessage.Headers.Host = this.options.Host + ":" + this.options.Port;
var uriString = $"{this.options.Scheme}://{this.options.Host}:{this.options.Port}{context.Request.PathBase}{context.Request.Path}{context.Request.QueryString}";
requestMessage.RequestUri = new Uri(uriString);
requestMessage.Method = new HttpMethod(context.Request.Method);
var responseMessage = await this.httpClient.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead, context.RequestAborted);
using (responseMessage)
{
context.Response.StatusCode = (int)responseMessage.StatusCode;
var responseHeaders = responseMessage.Headers.Concat(responseMessage.Content.Headers);
foreach (var header in responseHeaders)
{
context.Response.Headers[header.Key] = header.Value.ToArray();
}
// SendAsync removes chunking from the response. This removes the header so it doesn't expect a chunked response.
context.Response.Headers.Remove(HeaderNames.TransferEncoding);
if (context.Response.StatusCode != StatusCodes.Status304NotModified)
{
await responseMessage.Content.CopyToAsync(context.Response.Body);
}
}
}
public async Task Invoke(HttpContext context)
{
if (!HttpMethods.IsHead(context.Request.Method))
{
await _next.Invoke(context);
return;
}
context.Request.Method = HttpMethods.Get;
context.Response.Body = Stream.Null;
await _next.Invoke(context);
context.Request.Method = HttpMethods.Head;
}
private static bool ValidateMethod(HttpContext context)
{
var method = context.Request.Method;
var isValid = false;
if (HttpMethods.IsGet(method))
{
isValid = true;
}
else if (HttpMethods.IsHead(method))
{
isValid = true;
}
return(isValid);
}
private static (RangeItemHeaderValue?range, long rangeLength, bool serveBody) SetRangeHeaders(
HttpContext httpContext,
RequestHeaders httpRequestHeaders,
long fileLength,
ILogger logger)
{
var response = httpContext.Response;
var httpResponseHeaders = response.GetTypedHeaders();
var serveBody = !HttpMethods.IsHead(httpContext.Request.Method);
// Range may be null for empty range header, invalid ranges, parsing errors, multiple ranges
// and when the file length is zero.
var(isRangeRequest, range) = RangeHelper.ParseRange(
httpContext,
httpRequestHeaders,
fileLength,
logger);
if (!isRangeRequest)
{
return(range : null, rangeLength : 0, serveBody);
}
// Requested range is not satisfiable
if (range == null)
{
// 14.16 Content-Range - A server sending a response with status code 416 (Requested range not satisfiable)
// SHOULD include a Content-Range field with a byte-range-resp-spec of "*". The instance-length specifies
// the current length of the selected resource. e.g. */length
response.StatusCode = StatusCodes.Status416RangeNotSatisfiable;
httpResponseHeaders.ContentRange = new ContentRangeHeaderValue(fileLength);
response.ContentLength = 0;
return(range : null, rangeLength : 0, serveBody : false);
}
response.StatusCode = StatusCodes.Status206PartialContent;
httpResponseHeaders.ContentRange = new ContentRangeHeaderValue(
range.From !.Value,
range.To !.Value,
fileLength);
// Overwrite the Content-Length header for valid range requests with the range length.
var rangeLength = SetContentLength(response, range);
return(range, rangeLength, serveBody);
}
/// <summary>
/// This middleware transforms incoming Http HEAD request
/// internally to Http GET and ensures that a null stream is
/// being sent back.
/// </summary>
public async Task Invoke(HttpContext context)
{
var isHead = HttpMethods.IsHead(context.Request.Method);
if (isHead)
{
context.Request.Method = HttpMethods.Get;
context.Response.Body = Stream.Null;
}
await _next(context);
if (isHead)
{
context.Request.Method = HttpMethods.Head;
}
}
private static bool ValidateMethod(HttpContext context)
{
string method = context.Request.Method;
bool flag = false;
if (HttpMethods.IsGet(method))
{
flag = true;
}
else if (HttpMethods.IsHead(method))
{
flag = true;
}
return(flag);
}
public static async Task HandleHttpRequestX(HttpContext context, string uriString)
{
var _httpClient = new HttpClient(new HttpClientHandler());
var requestMessage = new HttpRequestMessage();
var requestMethod = context.Request.Method;
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
var streamContent = new StreamContent(context.Request.Body);
requestMessage.Content = streamContent;
}
// Copy the request headers
foreach (var header in context.Request.Headers)
{
if (!requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray()) && requestMessage.Content != null)
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
requestMessage.RequestUri = new Uri(uriString);
requestMessage.Headers.Host = $"{requestMessage.RequestUri.Host}:{requestMessage.RequestUri.Port}";
requestMessage.Method = new HttpMethod(context.Request.Method);
using (var responseMessage = await _httpClient.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead, context.RequestAborted))
{
context.Response.StatusCode = (int)responseMessage.StatusCode;
foreach (var header in responseMessage.Headers)
{
context.Response.Headers[header.Key] = header.Value.ToArray();
}
foreach (var header in responseMessage.Content.Headers)
{
context.Response.Headers[header.Key] = header.Value.ToArray();
}
// SendAsync removes chunking from the response. This removes the header so it doesn't expect a chunked response.
context.Response.Headers.Remove("transfer-encoding");
await responseMessage.Content.CopyToAsync(context.Response.Body);
}
}
public static string ReadRequestBodyAsString(this HttpRequest request)
{
string requestBodyAsText = "";
if (!HttpMethods.IsGet(request.Method) &&
!HttpMethods.IsHead(request.Method) &&
!HttpMethods.IsDelete(request.Method) &&
!HttpMethods.IsTrace(request.Method) &&
request.ContentLength > 0)
{
using (var reader = new StreamReader(request.Body))
{
requestBodyAsText = reader.ReadToEnd();
}
}
return(requestBodyAsText);
}
private void CopyOriginalReqContent(HttpRequest req, HttpRequestMessage requestMessage)
{
if (!HttpMethods.IsGet(req.Method) &&
!HttpMethods.IsHead(req.Method) &&
!HttpMethods.IsDelete(req.Method))
{
// here is is a method with a BODY
var streamContent = new StreamContent(req.Body);
requestMessage.Content = streamContent;
}
// copy headers
foreach (var header in req.Headers)
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
private bool SetupContent(object content, string contentMediaType, bool contentAsJson, bool contentUseCamelCase, HttpRequest request, HttpRequestMessage requestMessage, string requestMethod)
{
if (!HttpMethods.IsGet(requestMethod) && !HttpMethods.IsHead(requestMethod) && !HttpMethods.IsDelete(requestMethod) && !HttpMethods.IsTrace(requestMethod))
{
if (request.HasFormContentType)
{
var dataToSend = content != null ? content as IFormCollection : request.Form;
requestMessage.Content = ToHttpContent(dataToSend, request.ContentType);
return(false);
}
else
{
requestMessage.Content = content != null?CreateHttpContent(content, contentMediaType, contentAsJson, contentUseCamelCase) : new StreamContent(request.Body);
}
}
return(true);
}
private static void SetProxyRequestBody(HttpRequestMessage requestMessage, HttpContext context)
{
var requestMethod = context.Request.Method;
if (HttpMethods.IsGet(requestMethod) ||
HttpMethods.IsHead(requestMethod) ||
HttpMethods.IsDelete(requestMethod) ||
HttpMethods.IsTrace(requestMethod))
{
return;
}
// We need to copy the stream to not get exceptions
var memStr = new System.IO.MemoryStream();
context.Request.Body.CopyTo(memStr);
memStr.Position = 0;
requestMessage.Content = new StreamContent(memStr);
}
private void CopyFromOriginalRequestContentAndHeaders(HttpContext context, HttpRequestMessage requestMessage)
{
var requestMethod = context.Request.Method;
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
var streamContent = new StreamContent(context.Request.Body);
requestMessage.Content = streamContent;
}
foreach (var header in context.Request.Headers)
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
private static HttpRequestMessage CreateProxyHttpRequest(this HttpRequest request)
{
var requestMessage = new HttpRequestMessage();
var requestMethod = request.Method;
if (!HttpMethods.IsGet(requestMethod) &&
!HttpMethods.IsHead(requestMethod) &&
!HttpMethods.IsDelete(requestMethod) &&
!HttpMethods.IsTrace(requestMethod))
{
var streamContent = new StreamContent(request.Body);
requestMessage.Content = streamContent;
}
// Copy the request headers *except* x-forwarded-* headers.
foreach (var header in request.Headers)
{
if (header.Key.StartsWith("X-Forwarded-", StringComparison.OrdinalIgnoreCase))
{
continue;
}
if (!requestMessage.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray()))
{
requestMessage.Content?.Headers.TryAddWithoutValidation(header.Key, header.Value.ToArray());
}
}
// HACK: Attempting to send a malformed User-Agent will throw from with HttpClient
// Remove when .net core 3 is released. Consider supporting netcoreapp2.x with #ifdef
// https://github.com/damianh/ProxyKit/issues/53
// https://github.com/dotnet/corefx/issues/34933
try
{
requestMessage.Headers.TryGetValues("User-Agent", out var _);
}
catch (IndexOutOfRangeException)
{
requestMessage.Headers.Remove("User-Agent");
}
requestMessage.Method = new HttpMethod(request.Method);
return(requestMessage);
}
