-
-
Notifications
You must be signed in to change notification settings - Fork 3k
Expand file tree
/
Copy pathWebRequestResourceHandler.cs
More file actions
79 lines (65 loc) · 3.1 KB
/
WebRequestResourceHandler.cs
File metadata and controls
79 lines (65 loc) · 3.1 KB
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
// Copyright © 2016 The CefSharp Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
using System.Collections.Specialized;
using System.IO;
using System.Net;
using System.Net.Mime;
using System.Threading.Tasks;
namespace CefSharp.Example
{
/// <summary>
/// A simple <see cref="ResourceHandler"/> that uses <see cref="WebRequest.Create(string)"/> to fulfill requests.
/// </summary>
/// <remarks>
/// This example doesn't cover all cases, for example POST requests, if you'd like to see the example
/// expanded then please subit a Pull Request.
/// </remarks>
public class WebRequestResourceHandler : ResourceHandler
{
public override CefReturnValue ProcessRequestAsync(IRequest request, ICallback callback)
{
//Spawn a Task and immediately return CefReturnValue.ContinueAsync
Task.Run(async () =>
{
using (callback)
{
//Create a clone of the headers so we can modify it
var headers = new NameValueCollection(request.Headers);
var httpWebRequest = (HttpWebRequest)WebRequest.Create(request.Url);
httpWebRequest.UserAgent = headers["User-Agent"];
httpWebRequest.Accept = headers["Accept"];
httpWebRequest.Method = request.Method;
httpWebRequest.Referer = request.ReferrerUrl;
//These headers must be set via the appropriate properties.
headers.Remove("User-Agent");
headers.Remove("Accept");
httpWebRequest.Headers.Add(headers);
//TODO: Deal with post data
var postData = request.PostData;
var httpWebResponse = await httpWebRequest.GetResponseAsync() as HttpWebResponse;
// Get the stream associated with the response.
var receiveStream = httpWebResponse.GetResponseStream();
var contentType = new ContentType(httpWebResponse.ContentType);
var mimeType = contentType.MediaType;
var charSet = contentType.CharSet;
var statusCode = httpWebResponse.StatusCode;
var memoryStream = new MemoryStream();
receiveStream.CopyTo(memoryStream);
receiveStream.Dispose();
httpWebResponse.Dispose();
//Reset the stream position to 0 so the stream can be copied into the underlying unmanaged buffer
memoryStream.Position = 0;
ResponseLength = memoryStream.Length;
MimeType = mimeType;
Charset = charSet ?? "UTF-8";
StatusCode = (int)statusCode;
Stream = memoryStream;
AutoDisposeStream = true;
callback.Continue();
}
});
return CefReturnValue.ContinueAsync;
}
}
}