Si vous effectuez des portages d’applications .NET vers Silverlight ou Windows Phone 7, cette classe pourrait bien vous \u00eatre utile.
\nEn effet, dans Silverlight, les WebRequests sont asynchrones (c’est tr\u00e8s bien !), seulement ce changement d’API peut causer de nombreuses modifications de code. C’est dans cette optique que j’ai cr\u00e9e cette classe C# : HttpWebRequestSync qui propose une interface au plus proche de ce qui existait avant.<\/p>\n
Attention, pour le coup vous perdrez l’avantage des requ\u00eates asynchrones et votre thread appelant sera bloqu\u00e9 pendant le d\u00e9roulement de la requ\u00eate, comme au bon vieux temps !
\nTout retour de bug ou message de remerciement est le bienvenu, ce code est disponible sous licence LGPL.<\/p>\n
If you’re looking forward to port .NET applications to Silverlight\/Windows Phone 7, the following might interest you. Note that you’ll lose the advantage of asynchronous requests and that you’re thread will be locked waiting for the request to complete, ol’school style. <\/p>\n Si vous effectuez des portages d’applications .NET vers Silverlight ou Windows Phone 7, cette classe pourrait bien vous \u00eatre utile. En effet, dans Silverlight, les WebRequests sont asynchrones (c’est tr\u00e8s bien !), seulement ce changement d’API peut causer de nombreuses modifications de code. C’est dans cette optique que j’ai cr\u00e9e cette classe C# : HttpWebRequestSync […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","enabled":false}}},"categories":[18],"tags":[52,22,21,19,20],"jetpack_publicize_connections":[],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/p19lzH-m","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/posts\/22"}],"collection":[{"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/comments?post=22"}],"version-history":[{"count":0,"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/posts\/22\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/media?parent=22"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/categories?post=22"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ree7.fr\/blog\/wp-json\/wp\/v2\/tags?post=22"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nIn Silverlight, the WebRequests are asynchronous (and that’s a good thing), but this change in the API can cause numerous changes in your code. That’s what lead me to write this C# class : HttpWebRequestSync featuring an interface as close as possible as what was there before.<\/em><\/p>\n
\nIf you find any bug or just want to leave a ‘thank you’ not you’re welcome. This code is available under the LGPL license.<\/em><\/p>\n\/**********************************************************\r\n * HttpWebRequestSync.cs\r\n * Provides an implementation close to the .NET CF (3.5)\r\n * synchronous HttpWebRequest with Windows Phone 7's\r\n * asynchronous implementation.\r\n * TL;DR : Abstract the dev from all the async callback.\r\n *\r\n * Written by : Pierre BELIN <pierre.belin@inbox.com>\r\n *\r\n * This program is free software: you can redistribute it and\/or modify\r\n * it under the terms of the Lesser GNU General Public License as published by\r\n * the Free Software Foundation, either version 3 of the License, or\r\n * (at your option) any later version.\r\n *\r\n * This program is distributed in the hope that it will be useful,\r\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\r\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\u00a0 See the\r\n * GNU General Public License for more details.\r\n *\r\n * You should have received a copy of the Lesser GNU General Public License\r\n * along with this program.\u00a0 If not, see <http:\/\/www.gnu.org\/licenses\/>.\r\n *\r\n **********************************************************\/\r\nusing System;\r\nusing System.Net;\r\nusing System.Threading;\r\nusing System.IO;\r\n\r\nnamespace Ree7.Utils.Net\r\n{\r\n public class HttpWebRequestSync\r\n {\r\n private ManualResetEvent getRequestDone = new ManualResetEvent(false);\r\n private ManualResetEvent getResponseDone = new ManualResetEvent(false);\r\n private HttpWebRequest request;\r\n\r\n private HttpWebResponse response;\r\n private Stream requestStream;\r\n\r\n \/\/\/ <summary>\r\n \/\/\/ Private ctor, to get an HttpWebRequestSync you shall use Create()\r\n \/\/\/ <\/summary>\r\n private HttpWebRequestSync()\r\n {\r\n\r\n }\r\n\r\n \/\/\/ <summary>\r\n \/\/\/ Initializes a new HttpWebRequestSync for the specified URI scheme\r\n \/\/\/ <\/summary>\r\n public static HttpWebRequestSync Create(string url)\r\n {\r\n return Create(new Uri(url));\r\n }\r\n\r\n \/\/\/ <summary>\r\n \/\/\/ Initializes a new HttpWebRequestSync for the specified URI scheme\r\n \/\/\/ <\/summary>\r\n public static HttpWebRequestSync Create(Uri uri)\r\n {\r\n HttpWebRequestSync wrs = new HttpWebRequestSync();\r\n wrs.request = (HttpWebRequest)WebRequest.Create(uri);\r\n\r\n return wrs;\r\n }\r\n\r\n #region HttpWebRequest Interface\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Gets or sets the value of the Accept HTTP header.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 The value of the Accept HTTP header. The default value is null.\r\n \/\/\/ <\/summary>\r\n public string Accept\r\n {\r\n get\r\n {\r\n return request.Accept;\r\n }\r\n set\r\n {\r\n request.Accept = value;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Not Implemented Yet\r\n \/\/\/ <\/summary>\r\n public int ContentLength\r\n {\r\n get\r\n {\r\n return 0;\r\n }\r\n set\r\n {\r\n return;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Gets or sets the value of the Content-type HTTP header.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 The value of the Content-type HTTP header. The default value is null.\r\n \/\/\/ <\/summary>\r\n public string ContentType\r\n {\r\n get\r\n {\r\n return request.ContentType;\r\n }\r\n set\r\n {\r\n request.ContentType = value;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Specifies the collection of System.Net.CookieCollection objects associated\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 with the HTTP request.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 A System.Net.CookieContainer that contains a collection of System.Net.CookieCollection\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 objects associated with the HTTP request.\r\n \/\/\/\r\n \/\/\/ Exceptions:\r\n \/\/\/\u00a0\u00a0 System.NotImplementedException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 This property is not implemented.\r\n \/\/\/ <\/summary>\r\n public CookieContainer CookieContainer\r\n {\r\n get\r\n {\r\n return request.CookieContainer;\r\n }\r\n set\r\n {\r\n request.CookieContainer = value;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Gets a value that indicates whether a response has been received from an\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Internet resource.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 true if a response has been received; otherwise, false.\r\n \/\/\/\r\n \/\/\/ Exceptions:\r\n \/\/\/\u00a0\u00a0 System.NotImplementedException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 This property is not implemented.\r\n \/\/\/ <\/summary>\r\n public bool HaveResponse\r\n {\r\n get\r\n {\r\n return request.HaveResponse;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Returns the underlying HttpWebRequest (handle it with care)\r\n \/\/\/ <\/summary>\r\n public HttpWebRequest HttpWebRequest\r\n {\r\n get\r\n {\r\n return request;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Specifies a collection of the name\/value pairs that make up the HTTP headers.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 A System.Net.WebHeaderCollection that contains the name\/value pairs that\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 make up the headers for the HTTP request.\r\n \/\/\/\r\n \/\/\/ Exceptions:\r\n \/\/\/\u00a0\u00a0 System.InvalidOperationException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 The request has been started by calling the System.Net.HttpWebRequest.BeginGetRequestStream\r\n\r\n(System.AsyncCallback,System.Object)\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 or System.Net.HttpWebRequest.BeginGetResponse(System.AsyncCallback,System.Object)\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 method.\r\n \/\/\/ <\/summary>\r\n public WebHeaderCollection Headers\r\n {\r\n get\r\n {\r\n return request.Headers;\r\n }\r\n set\r\n {\r\n request.Headers = value;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Gets or sets the method for the request.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 The request method to use to contact the Internet resource. The default value\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 is GET.\r\n \/\/\/\r\n \/\/\/ Exceptions:\r\n \/\/\/\u00a0\u00a0 System.ArgumentException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 No method is supplied.-or- The method string contains invalid characters.\r\n \/\/\/\r\n \/\/\/\u00a0\u00a0 System.NotImplementedException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 This property is not implemented.\r\n \/\/\/\r\n \/\/\/\u00a0\u00a0 System.NotSupportedException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 The System.Net.HttpWebRequest.Method property is not GET or POST.\r\n \/\/\/ <\/summary>\r\n public string Method\r\n {\r\n get\r\n {\r\n return request.Method;\r\n }\r\n set\r\n {\r\n request.Method = value;\r\n }\r\n }\r\n \/\/\/ <summary>\r\n \/\/\/ Summary:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 Gets the original Uniform Resource Identifier (URI) of the request.\r\n \/\/\/\r\n \/\/\/ Returns:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 A System.Uri that contains the URI of the Internet resource passed to the\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 System.Net.WebRequest.Create(System.Uri) method.\r\n \/\/\/\r\n \/\/\/ Exceptions:\r\n \/\/\/\u00a0\u00a0 System.NotImplementedException:\r\n \/\/\/\u00a0\u00a0\u00a0\u00a0 This property is not implemented.\r\n \/\/\/ <\/summary>\r\n public Uri RequestUri\r\n {\r\n get\r\n {\r\n return request.RequestUri;\r\n }\r\n }\r\n #endregion\r\n\r\n public Stream GetRequestStream()\r\n {\r\n \/\/ start the asynchronous operation\r\n request.AllowReadStreamBuffering = false;\r\n request.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback), request);\r\n\r\n \/\/ Keep the main thread from continuing while the asynchronous\r\n \/\/ operation completes. A real world application\r\n \/\/ could do something useful such as updating its user interface.\r\n getRequestDone.WaitOne();\r\n\r\n Stream result = requestStream;\r\n\r\n \/\/ Avoid keeping an unnecessary ref on the stream in this object\r\n requestStream = null;\r\n\r\n return result;\r\n }\r\n\r\n private void GetRequestStreamCallback(IAsyncResult asynchronousResult)\r\n {\r\n request = (HttpWebRequest)asynchronousResult.AsyncState;\r\n requestStream = request.EndGetRequestStream(asynchronousResult);\r\n\r\n getRequestDone.Set();\r\n }\r\n\r\n public HttpWebResponse GetResponse()\r\n {\r\n \/\/ Start the asynchronous operation to get the response\r\n request.BeginGetResponse(new AsyncCallback(GetResponseCallback), request);\r\n\r\n getResponseDone.WaitOne();\r\n\r\n HttpWebResponse result = response;\r\n\r\n \/\/ Avoid keeping an unnecessary ref on the response in this object\r\n response = null;\r\n\r\n return result;\r\n }\r\n\r\n private void GetResponseCallback(IAsyncResult asynchronousResult)\r\n {\r\n request = (HttpWebRequest)asynchronousResult.AsyncState;\r\n\r\n \/\/ End the operation\r\n response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);\r\n\r\n getResponseDone.Set();\r\n }\r\n\r\n }\r\n}<\/pre>\n","protected":false},"excerpt":{"rendered":"