System.Net.HttpWebRequest.HttpWebRequest.Redirect C# (CSharp) Method

		bool Redirect (WebAsyncResult result, HttpStatusCode code)
		{
			redirects++;
			Exception e = null;
			string uriString = null;

			switch (code) {
			case HttpStatusCode.Ambiguous: // 300
				e = new WebException ("Ambiguous redirect.");
				break;
			case HttpStatusCode.MovedPermanently: // 301
			case HttpStatusCode.Redirect: // 302
			case HttpStatusCode.TemporaryRedirect: // 307
				/* MS follows the redirect for POST too
				if (method != "GET" && method != "HEAD") // 10.3
					return false;
				*/

				contentLength = -1;
				bodyBufferLength = 0;
				bodyBuffer = null;
				if (code != HttpStatusCode.TemporaryRedirect)
					method = "GET";
				uriString = webResponse.Headers ["Location"];
				break;
			case HttpStatusCode.SeeOther: //303
				method = "GET";
				uriString = webResponse.Headers ["Location"];
				break;
			case HttpStatusCode.NotModified: // 304
				return false;
			case HttpStatusCode.UseProxy: // 305
				e = new NotImplementedException ("Proxy support not available.");
				break;
			case HttpStatusCode.Unused: // 306
			default:
				e = new ProtocolViolationException ("Invalid status code: " + (int) code);
				break;
			}

			if (e != null)
				throw e;

			if (uriString == null)
				throw new WebException ("No Location header found for " + (int) code,
							WebExceptionStatus.ProtocolError);

			Uri prev = actualUri;
			try {
				actualUri = new Uri (actualUri, uriString);
			} catch (Exception) {
				throw new WebException (String.Format ("Invalid URL ({0}) for {1}",
									uriString, (int) code),
									WebExceptionStatus.ProtocolError);
			}

			hostChanged = (actualUri.Scheme != prev.Scheme || Host != prev.Authority);
			return true;
		}