Raven.Client.Connection.HttpJsonRequest.WriteMetadata C# (CSharp) Method

		private void WriteMetadata(RavenJObject metadata)
		{
			if (metadata == null || metadata.Count == 0)
			{
				webRequest.ContentLength = 0;
				return;
			}

			foreach (var prop in metadata)
			{
				if (prop.Value == null)
					continue;

				if (prop.Value.Type == JTokenType.Object ||
					prop.Value.Type == JTokenType.Array)
					continue;

				var headerName = prop.Key;
				if (headerName == "ETag")
					headerName = "If-Match";
				var value = prop.Value.Value<object>().ToString();

				// Restricted headers require their own special treatment, otherwise an exception will
				// be thrown.
				// See http://msdn.microsoft.com/en-us/library/78h415ay.aspx
				if (WebHeaderCollection.IsRestricted(headerName))
				{
					switch (headerName)
					{
						/*case "Date":
						case "Referer":
						case "Content-Length":
						case "Expect":
						case "Range":
						case "Transfer-Encoding":
						case "User-Agent":
						case "Proxy-Connection":
						case "Host": // Host property is not supported by 3.5
							break;*/
						case "Content-Type":
							webRequest.ContentType = value;
							break;
						case "If-Modified-Since":
							DateTime tmp;
							DateTime.TryParse(value, out tmp);
							webRequest.IfModifiedSince = tmp;
							break;
						case "Accept":
							webRequest.Accept = value;
							break;
						case "Connection":
							webRequest.Connection = value;
							break;
					}
				} 
				else 
				{
					webRequest.Headers[headerName] = value;
				}
			}
		}