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Diffstat (limited to '')
| -rw-r--r-- | src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/THttpTransport.cs | 222 |
1 files changed, 222 insertions, 0 deletions
diff --git a/src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/THttpTransport.cs b/src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/THttpTransport.cs new file mode 100644 index 000000000..c84df83ae --- /dev/null +++ b/src/jaegertracing/thrift/lib/netstd/Thrift/Transport/Client/THttpTransport.cs @@ -0,0 +1,222 @@ +// Licensed to the Apache Software Foundation(ASF) under one +// or more contributor license agreements.See the NOTICE file +// distributed with this work for additional information +// regarding copyright ownership.The ASF licenses this file +// to you under the Apache License, Version 2.0 (the +// "License"); you may not use this file except in compliance +// with the License. You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, +// software distributed under the License is distributed on an +// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +// KIND, either express or implied. See the License for the +// specific language governing permissions and limitations +// under the License. + +using System; +using System.Collections.Generic; +using System.IO; +using System.Linq; +using System.Net.Http; +using System.Net.Http.Headers; +using System.Security.Cryptography.X509Certificates; +using System.Threading; +using System.Threading.Tasks; + +namespace Thrift.Transport.Client +{ + // ReSharper disable once InconsistentNaming + public class THttpTransport : TTransport + { + private readonly X509Certificate[] _certificates; + private readonly Uri _uri; + + private int _connectTimeout = 30000; // Timeouts in milliseconds + private HttpClient _httpClient; + private Stream _inputStream; + private MemoryStream _outputStream = new MemoryStream(); + private bool _isDisposed; + + public THttpTransport(Uri uri, IDictionary<string, string> customRequestHeaders = null, string userAgent = null) + : this(uri, Enumerable.Empty<X509Certificate>(), customRequestHeaders, userAgent) + { + } + + public THttpTransport(Uri uri, IEnumerable<X509Certificate> certificates, + IDictionary<string, string> customRequestHeaders, string userAgent = null) + { + _uri = uri; + _certificates = (certificates ?? Enumerable.Empty<X509Certificate>()).ToArray(); + + if (!string.IsNullOrEmpty(userAgent)) + UserAgent = userAgent; + + // due to current bug with performance of Dispose in netcore https://github.com/dotnet/corefx/issues/8809 + // this can be switched to default way (create client->use->dispose per flush) later + _httpClient = CreateClient(customRequestHeaders); + } + + // According to RFC 2616 section 3.8, the "User-Agent" header may not carry a version number + public readonly string UserAgent = "Thrift netstd THttpClient"; + + public override bool IsOpen => true; + + public HttpRequestHeaders RequestHeaders => _httpClient.DefaultRequestHeaders; + + public MediaTypeHeaderValue ContentType { get; set; } + + public override async Task OpenAsync(CancellationToken cancellationToken) + { + if (cancellationToken.IsCancellationRequested) + { + await Task.FromCanceled(cancellationToken); + } + } + + public override void Close() + { + if (_inputStream != null) + { + _inputStream.Dispose(); + _inputStream = null; + } + + if (_outputStream != null) + { + _outputStream.Dispose(); + _outputStream = null; + } + + if (_httpClient != null) + { + _httpClient.Dispose(); + _httpClient = null; + } + } + + public override async ValueTask<int> ReadAsync(byte[] buffer, int offset, int length, CancellationToken cancellationToken) + { + if (cancellationToken.IsCancellationRequested) + { + return await Task.FromCanceled<int>(cancellationToken); + } + + if (_inputStream == null) + { + throw new TTransportException(TTransportException.ExceptionType.NotOpen, "No request has been sent"); + } + + try + { + var ret = await _inputStream.ReadAsync(buffer, offset, length, cancellationToken); + + if (ret == -1) + { + throw new TTransportException(TTransportException.ExceptionType.EndOfFile, "No more data available"); + } + + return ret; + } + catch (IOException iox) + { + throw new TTransportException(TTransportException.ExceptionType.Unknown, iox.ToString()); + } + } + + public override async Task WriteAsync(byte[] buffer, int offset, int length, CancellationToken cancellationToken) + { + if (cancellationToken.IsCancellationRequested) + { + await Task.FromCanceled(cancellationToken); + } + + await _outputStream.WriteAsync(buffer, offset, length, cancellationToken); + } + + private HttpClient CreateClient(IDictionary<string, string> customRequestHeaders) + { + var handler = new HttpClientHandler(); + handler.ClientCertificates.AddRange(_certificates); + handler.AutomaticDecompression = System.Net.DecompressionMethods.Deflate | System.Net.DecompressionMethods.GZip; + + var httpClient = new HttpClient(handler); + + if (_connectTimeout > 0) + { + httpClient.Timeout = TimeSpan.FromMilliseconds(_connectTimeout); + } + + httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/x-thrift")); + httpClient.DefaultRequestHeaders.UserAgent.TryParseAdd(UserAgent); + + httpClient.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("deflate")); + httpClient.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("gzip")); + + if (customRequestHeaders != null) + { + foreach (var item in customRequestHeaders) + { + httpClient.DefaultRequestHeaders.Add(item.Key, item.Value); + } + } + + return httpClient; + } + + public override async Task FlushAsync(CancellationToken cancellationToken) + { + try + { + _outputStream.Seek(0, SeekOrigin.Begin); + + using (var contentStream = new StreamContent(_outputStream)) + { + contentStream.Headers.ContentType = ContentType ?? new MediaTypeHeaderValue(@"application/x-thrift"); + + var response = (await _httpClient.PostAsync(_uri, contentStream, cancellationToken)).EnsureSuccessStatusCode(); + + _inputStream?.Dispose(); + _inputStream = await response.Content.ReadAsStreamAsync(); + if (_inputStream.CanSeek) + { + _inputStream.Seek(0, SeekOrigin.Begin); + } + } + } + catch (IOException iox) + { + throw new TTransportException(TTransportException.ExceptionType.Unknown, iox.ToString()); + } + catch (HttpRequestException wx) + { + throw new TTransportException(TTransportException.ExceptionType.Unknown, + "Couldn't connect to server: " + wx); + } + catch (Exception ex) + { + throw new TTransportException(TTransportException.ExceptionType.Unknown, ex.Message); + } + finally + { + _outputStream = new MemoryStream(); + } + } + + // IDisposable + protected override void Dispose(bool disposing) + { + if (!_isDisposed) + { + if (disposing) + { + _inputStream?.Dispose(); + _outputStream?.Dispose(); + _httpClient?.Dispose(); + } + } + _isDisposed = true; + } + } +} |