← Back to branch summary

~ubuntu-branches/ubuntu/trusty/monodevelop/trusty-proposed

« back to all changes in this revision

Viewing changes to external/monomac/samples/CFNetwork/AsyncTests.HttpClientTests/Test/HttpClientTests.cs

  • Committer: Package Import Robot
  • Author(s): Jo Shields
  • Date: 2013-05-12 09:46:03 UTC
  • mto: This revision was merged to the branch mainline in revision 29.
  • Revision ID: package-import@ubuntu.com-20130512094603-mad323bzcxvmcam0
Tags: upstream-4.0.5+dfsg
Import upstream version 4.0.5+dfsg

Show diffs side-by-side

added added

removed removed

Lines of Context:
external/monomac/samples/CFNetwork/AsyncTests.HttpClientTests/Test/HttpClientTests.cs
 
1
//
 
2
// AsyncTests.HttpClientTests.Test.HttpClientTests
 
3
//
 
4
// Authors:
 
5
//      Martin Baulig (martin.baulig@gmail.com)
 
6
//
 
7
// Copyright 2012 Xamarin Inc. (http://www.xamarin.com)
 
8
//
 
9
//
 
10
// Permission is hereby granted, free of charge, to any person obtaining
 
11
// a copy of this software and associated documentation files (the
 
12
// "Software"), to deal in the Software without restriction, including
 
13
// without limitation the rights to use, copy, modify, merge, publish,
 
14
// distribute, sublicense, and/or sell copies of the Software, and to
 
15
// permit persons to whom the Software is furnished to do so, subject to
 
16
// the following conditions:
 
17
// 
 
18
// The above copyright notice and this permission notice shall be
 
19
// included in all copies or substantial portions of the Software.
 
20
// 
 
21
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 
22
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 
23
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 
24
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 
25
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 
26
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 
27
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
28
//
 
29
 
 
30
using System;
 
31
using System.Net;
 
32
using System.Linq;
 
33
using System.Collections.Generic;
 
34
using System.Threading;
 
35
using System.Threading.Tasks;
 
36
using System.Net.Http;
 
37
using System.Net.Http.Headers;
 
38
using NUnit.Framework;
 
39
using NUnit.Framework.Constraints;
 
40
using NUnit.Framework.SyntaxHelpers;
 
41
 
 
42
/*
 
43
 * Copied from System.Net.Http.Tests/HttpClientTests.cs
 
44
 * 
 
45
 */
 
46
namespace AsyncTests.HttpClientTests.Test {
 
47
        using Framework;
 
48
        using Addin;
 
49
 
 
50
        [HttpClientTestFixture (ReuseContext = false)]
 
51
        public class HttpClientTests {
 
52
                #region Default Settings
 
53
 
 
54
                [RequestHandler]
 
55
                public static void DefaultHandler (ServerContext ctx)
 
56
                {
 
57
                        var request = ctx.Request;
 
58
 
 
59
                        ctx.Expect (request.AcceptTypes, Is.Null, "#1");
 
60
                        ctx.Expect (request.ContentLength64, Is.EqualTo (0), "#2");
 
61
                        ctx.Expect (request.ContentType, Is.Null, "#3");
 
62
                        ctx.Expect (request.Cookies.Count, Is.EqualTo (0), "#4");
 
63
                        ctx.Expect (request.HasEntityBody, Is.False, "#5");
 
64
                        ctx.Expect (request.Headers ["Host"], Is.EqualTo (Server.Host), "#6b");
 
65
                        ctx.Expect (request.HttpMethod, Is.EqualTo ("GET"), "#7");
 
66
                        ctx.Expect (request.IsAuthenticated, Is.False, "#8");
 
67
                        ctx.Expect (request.IsLocal, Is.EqualTo (Server.IsLocal), "#9");
 
68
                        ctx.Expect (request.IsSecureConnection, Is.False, "#10");
 
69
                        ctx.Expect (request.IsWebSocketRequest, Is.False, "#11");
 
70
                        ctx.Expect (request.KeepAlive, Is.True, "#12");
 
71
                        ctx.Expect (request.ProtocolVersion, Is.EqualTo (HttpVersion.Version11), "#13");
 
72
                        ctx.Expect (request.ServiceName, Is.Null, "#14");
 
73
                        ctx.Expect (request.UrlReferrer, Is.Null, "#15");
 
74
                        // FIXME: CFNetwork seems to set the UserAgent automatically.
 
75
                        // context.Expect (request.UserAgent, Is.Null, "#16");
 
76
                        ctx.Expect (request.UserLanguages, Is.Null, "#17");
 
77
 
 
78
                        ctx.Response.StatusCode = 200;
 
79
                }
 
80
 
 
81
                [HttpClientTest]
 
82
                public async Task Default (HttpClientTestContext ctx,
 
83
                                           CancellationToken cancellationToken)
 
84
                {
 
85
                        var uri = Server.GetUri (DefaultHandler);
 
86
 
 
87
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
88
                        var response = await ctx.Client.SendAsync (
 
89
                                request, HttpCompletionOption.ResponseHeadersRead,
 
90
                                cancellationToken).ConfigureAwait (false);
 
91
 
 
92
                        ctx.AutoDispose (response);
 
93
                        Server.CheckException (response);
 
94
 
 
95
                        ctx.Assert (response.StatusCode, Is.EqualTo (HttpStatusCode.OK), "#100");
 
96
                        ctx.Assert (await response.Content.ReadAsStringAsync (), Is.Empty, "#101");
 
97
                }
 
98
 
 
99
                [RequestHandler]
 
100
                public static void DefaultHandler_Version_1_0 (ServerContext ctx)
 
101
                {
 
102
                        var request = ctx.Request;
 
103
 
 
104
                        ctx.Expect (request.AcceptTypes, Is.Null, "#1");
 
105
                        ctx.Expect (request.ContentLength64, Is.EqualTo (0), "#2");
 
106
                        ctx.Expect (request.ContentType, Is.Null, "#3");
 
107
                        ctx.Expect (request.Cookies.Count, Is.EqualTo (0), "#4");
 
108
                        ctx.Expect (request.HasEntityBody, Is.False, "#5");
 
109
 
 
110
                        /*
 
111
                         * CFNetwork seems to always send 'Connection' and 'User-Agent'.
 
112
                         */
 
113
                        foreach (var obj in request.Headers) {
 
114
                                if (obj.Equals ("Host"))
 
115
                                        continue;
 
116
                                else if (obj.Equals ("Connection"))
 
117
                                        continue;
 
118
                                else if (obj.Equals ("User-Agent"))
 
119
                                        continue;
 
120
                                ctx.Expect (false, "#6");
 
121
                        }
 
122
                        ctx.Expect (request.Headers ["Host"], Is.EqualTo (Server.Host), "#6a");
 
123
                        ctx.Expect (request.HttpMethod, Is.EqualTo ("GET"), "#7");
 
124
                        ctx.Expect (request.IsAuthenticated, Is.False, "#8");
 
125
                        ctx.Expect (request.IsLocal, Is.EqualTo (Server.IsLocal), "#9");
 
126
                        ctx.Expect (request.IsSecureConnection, Is.False, "#10");
 
127
                        ctx.Expect (request.IsWebSocketRequest, Is.False, "#11");
 
128
                        ctx.Expect (request.KeepAlive, Is.False, "#12");
 
129
                        ctx.Expect (request.ProtocolVersion, Is.EqualTo (HttpVersion.Version10), "#13");
 
130
                        ctx.Expect (request.ServiceName, Is.Null, "#14");
 
131
                        ctx.Expect (request.UrlReferrer, Is.Null, "#15");
 
132
                        // FIXME: CFNetwork seems to set the UserAgent automatically.
 
133
                        // Assert.IsNull (request.UserAgent, "#16");
 
134
                        ctx.Expect (request.UserLanguages, Is.Null, "#17");
 
135
 
 
136
                        ctx.Response.StatusCode = 200;
 
137
                }
 
138
 
 
139
                [HttpClientTest]
 
140
                public async Task Default_Version_1_0 (HttpClientTestContext ctx,
 
141
                                                       CancellationToken cancellationToken)
 
142
                {
 
143
                        var uri = Server.GetUri (DefaultHandler_Version_1_0);
 
144
 
 
145
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
146
                        request.Version = HttpVersion.Version10;
 
147
 
 
148
                        var response = await ctx.Client.SendAsync (
 
149
                                request, HttpCompletionOption.ResponseHeadersRead,
 
150
                                cancellationToken).ConfigureAwait (false);
 
151
 
 
152
                        ctx.AutoDispose (response);
 
153
                        Server.CheckException (response);
 
154
 
 
155
                        ctx.Assert (response.StatusCode, Is.EqualTo (HttpStatusCode.OK), "#100");
 
156
                        ctx.Assert (await response.Content.ReadAsStringAsync (), Is.Empty, "#101");
 
157
                }
 
158
 
 
159
                #endregion
 
160
 
 
161
                #region Keep-Alive
 
162
 
 
163
                [RequestHandler]
 
164
                public static void KeepAlive_Version1_0_Handler (ServerContext ctx)
 
165
                {
 
166
                        var request = ctx.Request;
 
167
 
 
168
                        var keepalive = request.Headers ["Keep-Alive"];
 
169
                        var connection = request.Headers ["Connection"];
 
170
 
 
171
                        ctx.Expect (keepalive, Is.Not.Null, "#1");
 
172
                        ctx.Expect ((connection == null) ||
 
173
                                    connection.Equals ("keep-alive", StringComparison.OrdinalIgnoreCase), "#2");
 
174
                        ctx.Expect (request.KeepAlive, Is.True, "#3");
 
175
                }
 
176
 
 
177
                [HttpClientTest]
 
178
                public async Task KeepAlive_Version1_0 (HttpClientTestContext ctx,
 
179
                                                        CancellationToken cancellationToken)
 
180
                {
 
181
                        var uri = Server.GetUri (KeepAlive_Version1_0_Handler);
 
182
 
 
183
                        var req = new HttpRequestMessage (HttpMethod.Get, uri);
 
184
                        req.Version = HttpVersion.Version10;
 
185
                        req.Headers.Add ("Keep-Alive", "false");
 
186
 
 
187
                        var response = await ctx.Client.SendAsync (
 
188
                                req, HttpCompletionOption.ResponseHeadersRead,
 
189
                                cancellationToken).ConfigureAwait (false);
 
190
 
 
191
                        ctx.AutoDispose (response);
 
192
                        Server.CheckException (response);
 
193
                }
 
194
 
 
195
                #endregion
 
196
 
 
197
 
 
198
                [RequestHandler]
 
199
                public static void ClientHandlerSettings_Handler (ServerContext ctx)
 
200
                {
 
201
                        var request = ctx.Request;
 
202
 
 
203
                        ctx.Expect (request.AcceptTypes, Is.Null, "#1");
 
204
                        ctx.Expect (request.ContentLength64, Is.EqualTo (0), "#2");
 
205
                        ctx.Expect (request.ContentType, Is.Null, "#3");
 
206
                        if (ctx.Expect (request.Cookies.Count, Is.EqualTo (1), "#4"))
 
207
                                ctx.Expect (request.Cookies [0], Is.EqualTo (new Cookie ("mycookie", "vv")), "#4a");
 
208
                        ctx.Expect (request.HasEntityBody, Is.False, "#5");
 
209
 
 
210
                        /*
 
211
                         * CFNetwork seems to always send 'Connection' and 'User-Agent'.
 
212
                         */
 
213
                        var allowed = new string[] {
 
214
                                "Host", "Connection", "User-Agent", "Keep-Alive", "Cookie",
 
215
                                "Accept-Encoding"
 
216
                        };
 
217
 
 
218
                        foreach (var obj in request.Headers) {
 
219
                                var header = (string)obj;
 
220
                                if (allowed.Contains (header))
 
221
                                        continue;
 
222
                                ctx.Expect (false, "#6: unexpected header: {0}", header);
 
223
                        }
 
224
 
 
225
                        ctx.Expect (request.Headers ["Host"], Is.EqualTo (Server.Host), "#6a");
 
226
                        ctx.Expect (request.Headers ["Accept-Encoding"], Is.EqualTo ("gzip"), "#6b");
 
227
                        ctx.Expect (request.Headers ["Cookie"], Is.EqualTo ("mycookie=vv"), "#6c");
 
228
                        ctx.Expect (request.HttpMethod, Is.EqualTo ("GET"), "#7");
 
229
                        ctx.Expect (request.IsAuthenticated, Is.False, "#8");
 
230
                        ctx.Expect (Server.IsLocal, request.IsLocal, Is.EqualTo (Server.IsLocal), "#9");
 
231
                        ctx.Expect (request.IsSecureConnection, Is.False, "#10");
 
232
                        ctx.Expect (request.IsWebSocketRequest, Is.False, "#11");
 
233
                        ctx.Expect (request.KeepAlive, Is.True, "#12");
 
234
                        ctx.Expect (request.ProtocolVersion, Is.EqualTo (HttpVersion.Version10), "#13");
 
235
                        ctx.Expect (request.ServiceName, Is.Null, "#14");
 
236
                        ctx.Expect (request.UrlReferrer, Is.Null, "#15");
 
237
                        // ctx.Expect (request.UserAgent, Is.Null, "#16");
 
238
                        ctx.Expect (request.UserLanguages, Is.Null, "#17");
 
239
 
 
240
                        ctx.Response.StatusCode = 200;
 
241
                }
 
242
 
 
243
                [HttpClientTest]
 
244
                public async Task ClientHandlerSettings (HttpClientTestContext ctx,
 
245
                                                         CancellationToken cancellationToken)
 
246
                {
 
247
                        var uri = Server.GetUri (ClientHandlerSettings_Handler);
 
248
 
 
249
                        ctx.Handler.AllowAutoRedirect = true;
 
250
                        ctx.Handler.AutomaticDecompression = DecompressionMethods.GZip;
 
251
                        ctx.Handler.MaxAutomaticRedirections = 33;
 
252
                        ctx.Handler.MaxRequestContentBufferSize = 5555;
 
253
                        ctx.Handler.PreAuthenticate = true;
 
254
                        ctx.Handler.CookieContainer.Add (uri, new Cookie ("mycookie", "vv"));
 
255
                        ctx.Handler.UseCookies = true;
 
256
                        ctx.Handler.UseDefaultCredentials = true;
 
257
 
 
258
                        if (Server.IsLocal) {
 
259
                                ctx.Handler.Proxy = new WebProxy ("ee");
 
260
                                ctx.Handler.UseProxy = true;
 
261
                        }
 
262
 
 
263
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
264
                        request.Version = HttpVersion.Version10;
 
265
                        request.Headers.Add ("Keep-Alive", "false");
 
266
 
 
267
                        var response = await ctx.Client.SendAsync (
 
268
                                request, HttpCompletionOption.ResponseHeadersRead,
 
269
                                cancellationToken).ConfigureAwait (false);
 
270
 
 
271
                        ctx.AutoDispose (response);
 
272
                        Server.CheckException (response);
 
273
 
 
274
                        ctx.Assert (response.StatusCode, Is.EqualTo (HttpStatusCode.OK), "#100");
 
275
                        ctx.Assert (await response.Content.ReadAsStringAsync (), Is.Empty, "#101");
 
276
                }
 
277
 
 
278
                [RequestHandler]
 
279
                public static void CustomHeaders_Handler (ServerContext ctx)
 
280
                {
 
281
                        var request = ctx.Request;
 
282
                        ctx.Expect (request.Headers ["aa"], Is.EqualTo ("vv"), "#1");
 
283
        
 
284
                        var response = ctx.Response;
 
285
                        response.Headers.Add ("rsp", "rrr");
 
286
                        response.Headers.Add ("upgrade", "vvvvaa");
 
287
                        response.Headers.Add ("Date", "aa");
 
288
                        response.Headers.Add ("cache-control", "audio");
 
289
        
 
290
                        response.StatusDescription = "test description";
 
291
                        response.ProtocolVersion = HttpVersion.Version10;
 
292
                        response.SendChunked = true;
 
293
                        response.RedirectLocation = "w3.org";
 
294
                }
 
295
 
 
296
                [HttpClientTest]
 
297
                public async Task CustomHeaders (HttpClientTestContext ctx,
 
298
                                                 CancellationToken cancellationToken)
 
299
                {
 
300
                        var uri = Server.GetUri (CustomHeaders_Handler);
 
301
 
 
302
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
303
                        ctx.Expect (request.Headers.TryAddWithoutValidation ("aa", "vv"), Is.True, "#0");
 
304
 
 
305
                        var response = await ctx.Client.SendAsync (
 
306
                                request, HttpCompletionOption.ResponseHeadersRead,
 
307
                                cancellationToken).ConfigureAwait (false);
 
308
 
 
309
                        ctx.AutoDispose (response);
 
310
                        Server.CheckException (response);
 
311
 
 
312
                        ctx.Assert (response.StatusCode, Is.EqualTo (HttpStatusCode.OK), "#101");
 
313
                        ctx.Assert (await response.Content.ReadAsStringAsync (), Is.Empty, "#100");
 
314
 
 
315
                        var headers = response.Headers;
 
316
                                
 
317
                        IEnumerable<string> values;
 
318
                        if (ctx.Expect (headers.TryGetValues ("rsp", out values), Is.True, "#102"))
 
319
                                ctx.Expect (values.First (), Is.EqualTo ("rrr"), "#102a");
 
320
 
 
321
                        if (ctx.Expect (headers.TryGetValues ("Transfer-Encoding", out values), Is.True, "#103")) {
 
322
                                // CFNetwork automatically combines all chunks.
 
323
                                if (ctx.IsDefaultHandler) {
 
324
                                        ctx.Expect (values.First (), Is.EqualTo ("chunked"), "#103a");
 
325
                                        ctx.Expect (headers.TransferEncodingChunked, Is.True, "#103b");
 
326
                                } else {
 
327
                                        ctx.Expect (values.First (), Is.EqualTo ("Identity"), "#103c");
 
328
                                        ctx.Expect (headers.TransferEncodingChunked, Is.Null, "#103d");
 
329
                                }
 
330
                        }
 
331
 
 
332
                        if (ctx.Expect (headers.TryGetValues ("Date", out values), Is.True, "#104")) {
 
333
                                ctx.Expect (values.Count (), Is.EqualTo (1), "#104b");
 
334
                                // .NET overwrites Date, Mono does not
 
335
                                if (!ctx.IsDefaultHandler)
 
336
                                        ctx.Expect (headers.Date, Is.Not.Null, "#104c");
 
337
                        }
 
338
 
 
339
                        ctx.Expect (headers.Upgrade.First (), Is.EqualTo (new ProductHeaderValue ("vvvvaa")), "#105");
 
340
 
 
341
                        ctx.Expect (headers.CacheControl.Extensions.First ().Name, Is.EqualTo ("audio"), "#106");
 
342
 
 
343
                        ctx.Expect (headers.Location.OriginalString, Is.EqualTo ("w3.org"), "#107");
 
344
                        ctx.Expect (response.ReasonPhrase, Is.EqualTo ("test description"), "#110");
 
345
                        // FIXME: .NET also returns 1.1 - bug ?
 
346
                        if (ctx.IsDefaultHandler)
 
347
                                ctx.Expect (response.Version, Is.EqualTo (HttpVersion.Version11), "#111");
 
348
                }
 
349
 
 
350
                [RequestHandler]
 
351
                public static void ContentHandler (ServerContext ctx)
 
352
                {
 
353
                        ctx.Response.OutputStream.WriteByte (55);
 
354
                        ctx.Response.OutputStream.WriteByte (75);
 
355
                }
 
356
 
 
357
                [HttpClientTest]
 
358
                public async Task Content (HttpClientTestContext ctx,
 
359
                                           CancellationToken cancellationToken)
 
360
                {
 
361
                        var uri = Server.GetUri (ContentHandler);
 
362
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
363
                        ctx.Assert (request.Headers.TryAddWithoutValidation ("aa", "vv"), Is.True, "#0");
 
364
 
 
365
                        var response = await ctx.Client.SendAsync (
 
366
                                request, HttpCompletionOption.ResponseHeadersRead,
 
367
                                cancellationToken).ConfigureAwait (false);
 
368
 
 
369
                        ctx.AutoDispose (response);
 
370
                        Server.CheckException (response);
 
371
 
 
372
                        ctx.Assert (response.StatusCode, Is.EqualTo (HttpStatusCode.OK), "#101");
 
373
                        ctx.Expect (await response.Content.ReadAsStringAsync (), Is.EqualTo ("7K"), "#100");
 
374
 
 
375
                        var headers = response.Headers;
 
376
 
 
377
                        IEnumerable<string> values;
 
378
                        if (ctx.Expect (headers.TryGetValues ("Transfer-Encoding", out values), Is.True, "#102")) {
 
379
                                // CFNetwork automatically combines all chunks.
 
380
                                if (ctx.IsDefaultHandler) {
 
381
                                        ctx.Expect (values.First (), Is.EqualTo ("chunked"), "#102a");
 
382
                                        ctx.Expect (headers.TransferEncodingChunked, Is.True, "#102b");
 
383
                                } else {
 
384
                                        ctx.Expect (values.First (), Is.EqualTo ("Identity"), "#102c");
 
385
                                        ctx.Expect (headers.TransferEncodingChunked, Is.Null, "#102d");
 
386
                                }
 
387
                        }
 
388
                }
 
389
 
 
390
                const int MaxResponseContentBufferSize_size = 8000;
 
391
 
 
392
                [RequestHandler]
 
393
                public static void MaxResponseContentBufferSize_Handler (ServerContext ctx)
 
394
                {
 
395
                        var b = new byte[MaxResponseContentBufferSize_size];
 
396
                        ctx.Response.OutputStream.Write (b, 0, b.Length);
 
397
                }
 
398
 
 
399
                [HttpClientTest]
 
400
                public async Task MaxResponseContentBufferSize (HttpClientTestContext ctx,
 
401
                                                                CancellationToken cancellationToken)
 
402
                {
 
403
                        var uri = Server.GetUri (MaxResponseContentBufferSize_Handler);
 
404
                        ctx.Client.MaxResponseContentBufferSize = 1000;
 
405
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
406
 
 
407
                        var response = await ctx.Client.SendAsync (
 
408
                                request, HttpCompletionOption.ResponseHeadersRead,
 
409
                                cancellationToken).ConfigureAwait (false);
 
410
 
 
411
                        ctx.AutoDispose (response);
 
412
                        Server.CheckException (response);
 
413
 
 
414
                        ctx.Assert (response.StatusCode, Is.EqualTo (HttpStatusCode.OK), "#101");
 
415
                        var result = await response.Content.ReadAsStringAsync ();
 
416
                        ctx.Expect (result.Length, Is.EqualTo (MaxResponseContentBufferSize_size), "#100");
 
417
                }
 
418
 
 
419
                [HttpClientTest]
 
420
                public async Task MaxResponseContentBufferSize_Error (HttpClientTestContext ctx,
 
421
                                                                      CancellationToken cancellationToken)
 
422
                {
 
423
                        var uri = Server.GetUri (MaxResponseContentBufferSize_Handler);
 
424
                        ctx.Client.MaxResponseContentBufferSize = 1000;
 
425
                        var request = new HttpRequestMessage (HttpMethod.Get, uri);
 
426
 
 
427
                        try {
 
428
                                var response = await ctx.Client.SendAsync (
 
429
                                        request, HttpCompletionOption.ResponseContentRead,
 
430
                                        cancellationToken).ConfigureAwait (false);
 
431
                                ctx.AutoDispose (response);
 
432
                                ctx.Assert (false, "#2");
 
433
                        } catch (AggregateException e) {
 
434
                                ctx.Assert (e.InnerException, Is.InstanceOfType (typeof(HttpRequestException)), "#3");
 
435
                        } catch (HttpRequestException) {
 
436
                                ;
 
437
                        }
 
438
                }
 
439
        }
 
440
}