//
// System.Windows.Browser.Net.BrowserHttpWebRequest class
//
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//
// Copyright (C) 2007,2009-2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
#if NET_2_1
using System.IO;
using System.Net.Policy;
namespace System.Net.Browser{
// This class maps with Silverlight exposed behavior for the browser http stack.
// One request can represent multiple connections with a server.
// e.g. requesting a policy for cross-domain requests
// e.g. http redirection
sealed class BrowserHttpWebRequest : PolicyBasedWebRequest {
internal InternalWebRequestStreamWrapper request;
public BrowserHttpWebRequest (Uri uri)
: base (uri)
{
}
public override IWebRequestCreate CreatorInstance {
get { return WebRequestCreator.BrowserHttp; }
}
public override void Abort ()
{
BrowserHttpWebResponse wresp = (response as BrowserHttpWebResponse);
if (wresp != null)
wresp.Abort ();
base.Abort ();
}
public override IAsyncResult BeginGetRequestStream (AsyncCallback callback, object state)
{
HttpWebAsyncResult result = new HttpWebAsyncResult (callback, state);
result.SetComplete ();
return result;
}
public override Stream EndGetRequestStream (IAsyncResult asyncResult)
{
if (request == null)
request = new InternalWebRequestStreamWrapper (new MemoryStream ());
return request;
}
public override bool HaveResponse {
get {
if (response != null)
return true;
return ((async_result != null && async_result.Response != null));
}
}
public override bool UseDefaultCredentials {
get { return true; }
set {
// this is the default (and unchangeable) behavior of the browser stack
if (!value)
throw new NotSupportedException ();
}
}
protected override HttpWebRequest GetHttpWebRequest (Uri uri)
{
return new BrowserHttpWebRequestInternal (this, uri);
}
protected override void CheckMethod (string method)
{
if (method == null)
throw new NotSupportedException ("method");
switch (method.ToLowerInvariant ()) {
case "get":
case "post":
break;
default:
throw new NotSupportedException ();
}
}
static string[] bad_get_headers = { "Content-Encoding", "Content-Language", "Content-MD5", "Expires", "Content-Type" };
protected override void CheckProtocolViolation ()
{
if (String.Compare (Method, "GET", StringComparison.OrdinalIgnoreCase) != 0)
return;
if (Headers.ContainsKey ("Cache-Control"))
throw new NotSupportedException ();
// most headers are checked when set, but some are checked much later
foreach (string header in bad_get_headers) {
// case insensitive check to internal Headers dictionary
if (Headers.ContainsKey (header))
throw new ProtocolViolationException ();
}
}
}
}
#endif
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