/
THttpTransport.cs
297 lines (254 loc) · 11.3 KB
/
THttpTransport.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
// 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;
#pragma warning disable IDE0079 // unneeded suppression -> all except net8
#pragma warning disable IDE0301 // simplify collection init -> net8 only
namespace Thrift.Transport.Client
{
// ReSharper disable once InconsistentNaming
public class THttpTransport : TEndpointTransport
{
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, TConfiguration config, IDictionary<string, string> customRequestHeaders = null, string userAgent = null)
: this(uri, config, Enumerable.Empty<X509Certificate>(), customRequestHeaders, userAgent)
{
}
public THttpTransport(Uri uri, TConfiguration config, IEnumerable<X509Certificate> certificates,
IDictionary<string, string> customRequestHeaders, string userAgent = null)
: base(config)
{
_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);
ConfigureClient(_httpClient);
}
/// <summary>
/// Constructor that takes a <c>HttpClient</c> instance to support using <c>IHttpClientFactory</c>.
/// </summary>
/// <remarks>As the <c>HttpMessageHandler</c> of the client must be configured at the time of creation, it
/// is assumed that the consumer has already added any certificates and configured decompression methods. The
/// consumer can use the <c>CreateHttpClientHandler</c> method to get a handler with these set.</remarks>
/// <param name="httpClient">Client configured with the desired message handler, user agent, and URI if not
/// specified in the <c>uri</c> parameter. A default user agent will be used if not set.</param>
/// <param name="config">Thrift configuration object</param>
/// <param name="uri">Optional URI to use for requests, if not specified the base address of <c>httpClient</c>
/// is used.</param>
public THttpTransport(HttpClient httpClient, TConfiguration config, Uri uri = null)
: base(config)
{
_httpClient = httpClient;
_uri = uri ?? httpClient.BaseAddress;
httpClient.BaseAddress = _uri;
var userAgent = _httpClient.DefaultRequestHeaders.UserAgent.ToString();
if (!string.IsNullOrEmpty(userAgent))
UserAgent = userAgent;
ConfigureClient(_httpClient);
}
// 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 int ConnectTimeout
{
set
{
_connectTimeout = value;
if(_httpClient != null)
_httpClient.Timeout = TimeSpan.FromMilliseconds(_connectTimeout);
}
get
{
if (_httpClient == null)
return _connectTimeout;
return (int)_httpClient.Timeout.TotalMilliseconds;
}
}
public override bool IsOpen => true;
public HttpRequestHeaders RequestHeaders => _httpClient.DefaultRequestHeaders;
public MediaTypeHeaderValue ContentType { get; set; }
public override Task OpenAsync(CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
return Task.CompletedTask;
}
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)
{
cancellationToken.ThrowIfCancellationRequested();
if (_inputStream == null)
throw new TTransportException(TTransportException.ExceptionType.NotOpen, "No request has been sent");
CheckReadBytesAvailable(length);
try
{
#if NET5_0_OR_GREATER
var ret = await _inputStream.ReadAsync(new Memory<byte>(buffer, offset, length), cancellationToken);
#else
var ret = await _inputStream.ReadAsync(buffer, offset, length, cancellationToken);
#endif
if (ret == -1)
{
throw new TTransportException(TTransportException.ExceptionType.EndOfFile, "No more data available");
}
CountConsumedMessageBytes(ret);
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)
{
cancellationToken.ThrowIfCancellationRequested();
#if NET5_0_OR_GREATER
await _outputStream.WriteAsync(buffer.AsMemory(offset, length), cancellationToken);
#else
await _outputStream.WriteAsync(buffer, offset, length, cancellationToken);
#endif
}
/// <summary>
/// Get a client handler configured with recommended properties to use with the <c>HttpClient</c> constructor
/// and an <c>IHttpClientFactory</c>.
/// </summary>
/// <param name="certificates">An optional array of client certificates to associate with the handler.</param>
/// <returns>
/// A client handler with deflate and gZip compression-decompression algorithms and any client
/// certificates passed in via <c>certificates</c>.
/// </returns>
public virtual HttpClientHandler CreateHttpClientHandler(X509Certificate[] certificates = null)
{
var handler = new HttpClientHandler();
if (certificates != null)
handler.ClientCertificates.AddRange(certificates);
handler.AutomaticDecompression = System.Net.DecompressionMethods.Deflate | System.Net.DecompressionMethods.GZip;
return handler;
}
private HttpClient CreateClient(IDictionary<string, string> customRequestHeaders)
{
var handler = CreateHttpClientHandler(_certificates);
var httpClient = new HttpClient(handler);
if (customRequestHeaders != null)
{
foreach (var item in customRequestHeaders)
{
httpClient.DefaultRequestHeaders.Add(item.Key, item.Value);
}
}
return httpClient;
}
private void ConfigureClient(HttpClient httpClient)
{
if (_connectTimeout > 0)
{
httpClient.Timeout = TimeSpan.FromMilliseconds(_connectTimeout);
}
httpClient.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/x-thrift"));
// Clear any user agent values to avoid drift with the field value
httpClient.DefaultRequestHeaders.UserAgent.Clear();
httpClient.DefaultRequestHeaders.UserAgent.TryParseAdd(UserAgent);
httpClient.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("deflate"));
httpClient.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("gzip"));
}
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();
#if NET5_0_OR_GREATER
_inputStream = await response.Content.ReadAsStreamAsync(cancellationToken);
#else
_inputStream = await response.Content.ReadAsStreamAsync();
#endif
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();
ResetConsumedMessageSize();
}
}
// IDisposable
protected override void Dispose(bool disposing)
{
if (!_isDisposed)
{
if (disposing)
{
_inputStream?.Dispose();
_outputStream?.Dispose();
_httpClient?.Dispose();
}
}
_isDisposed = true;
}
}
}