public async Task <HttpResponseMessage> DeserializeResponseAsync(HttpBufferedStream bufferedStream, CancellationToken cancellationToken) { var httpResponse = new HttpResponseMessage(); await SetResponseStatusLineAsync(httpResponse, bufferedStream, cancellationToken); await SetHeadersAndContentAsync(httpResponse, bufferedStream, cancellationToken); return(httpResponse); }
protected override async Task <HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken) { Validate.ArgumentNotNull(request, nameof(request)); using (Socket socket = await this.GetConnectedSocketAsync()) { using (var stream = new HttpBufferedStream(new NetworkStream(socket, true))) { var serializer = new HttpRequestResponseSerializer(); byte[] requestBytes = serializer.SerializeRequest(request); await stream.WriteAsync(requestBytes, 0, requestBytes.Length, cancellationToken); if (request.Content != null) { await request.Content.CopyToAsync(stream); } return(await serializer.DeserializeResponseAsync(stream, cancellationToken)); } } }
private static async Task SetHeadersAndContentAsync(HttpResponseMessage httpResponse, HttpBufferedStream bufferedStream, CancellationToken cancellationToken) { IList <string> headers = new List <string>(); string line = await bufferedStream.ReadLineAsync(cancellationToken); while (!string.IsNullOrWhiteSpace(line)) { headers.Add(line); line = await bufferedStream.ReadLineAsync(cancellationToken); } httpResponse.Content = new StreamContent(bufferedStream); foreach (string header in headers) { if (string.IsNullOrWhiteSpace(header)) { // headers end break; } int headerSeparatorPosition = header.IndexOf(HeaderSeparator, StringComparison.OrdinalIgnoreCase); if (headerSeparatorPosition <= 0) { throw new HttpRequestException($"Header is invalid {header}."); } string headerName = header.Substring(0, headerSeparatorPosition).Trim(); string headerValue = header.Substring(headerSeparatorPosition + 1).Trim(); bool headerAdded = httpResponse.Headers.TryAddWithoutValidation(headerName, headerValue); if (!headerAdded) { if (string.Equals(headerName, ContentLengthHeaderName, StringComparison.InvariantCultureIgnoreCase)) { if (!long.TryParse(headerValue, out long contentLength)) { throw new HttpRequestException($"Header value is invalid for {headerName}."); } await httpResponse.Content.LoadIntoBufferAsync(contentLength); } httpResponse.Content.Headers.TryAddWithoutValidation(headerName, headerValue); } } }
private static async Task SetResponseStatusLineAsync(HttpResponseMessage httpResponse, HttpBufferedStream bufferedStream, CancellationToken cancellationToken) { string statusLine = await bufferedStream.ReadLineAsync(cancellationToken); if (string.IsNullOrWhiteSpace(statusLine)) { throw new HttpRequestException("Response is empty."); } string[] statusLineParts = statusLine.Split(new[] { SP }, 3); if (statusLineParts.Length < 3) { throw new HttpRequestException("Status line is not valid."); } string[] httpVersion = statusLineParts[0].Split(new[] { ProtocolVersionSeparator }, 2); if (httpVersion.Length < 2 || !Version.TryParse(httpVersion[1], out Version versionNumber)) { throw new HttpRequestException($"Version is not valid {statusLineParts[0]}."); } httpResponse.Version = versionNumber; if (!Enum.TryParse(statusLineParts[1], out HttpStatusCode statusCode)) { throw new HttpRequestException($"StatusCode is not valid {statusLineParts[1]}."); } httpResponse.StatusCode = statusCode; httpResponse.ReasonPhrase = statusLineParts[2]; }