/// <summary>
/// Configures the response to redirect the client to the specified URL.
/// </summary>
/// <param name="url">The URL that the client should use to locate the requested resource.</param>
public void Redirect(string url)
{
// Get the redirection code.
Nequeo.Net.Http.Common.HttpStatusCode statusCode = Nequeo.Net.Http.Utility.GetStatusCode(302);
if (statusCode != null)
{
// Assign the status code.
StatusCode = statusCode.Code;
StatusDescription = statusCode.Description;
}
// Add the location header used for redirection.
AddHeader("Location", url);
}
/// <summary>
/// Write the response status to the stream.
/// </summary>
public void WriteWebSocketHeaders()
{
byte[] buffer = null;
string data = "";
// Set the upgrade value.
Upgrade = "websocket";
ProtocolVersion = "HTTP/1.1";
// Get the status code.
Nequeo.Net.Http.Common.HttpStatusCode statusCode = Nequeo.Net.Http.Utility.GetStatusCode(101);
StatusCode = statusCode.Code;
StatusDescription = statusCode.Description;
// If the SecWebSocketProtocol has been specified.
if (!String.IsNullOrEmpty(SecWebSocketProtocol))
{
AddHeader("Sec-WebSocket-Protocol", SecWebSocketProtocol);
}
// If the SecWebSocketAccept has been specified.
if (!String.IsNullOrEmpty(SecWebSocketAccept))
{
AddHeader("Sec-WebSocket-Accept", SecWebSocketAccept);
}
// If the SecWebSocketExtensions has been specified.
if (!String.IsNullOrEmpty(SecWebSocketExtensions))
{
AddHeader("Sec-WebSocket-Extensions", SecWebSocketExtensions);
}
// Write the response status to the stream.
WriteWebResponseHeaders(false);
// Send the header end space.
data = _deli;
buffer = Encoding.Default.GetBytes(data);
Write(buffer, 0, buffer.Length);
}
/// <summary>
/// Check to see if the request is a web socket.
/// </summary>
/// <param name="webSocketContext">The current web socket context.</param>
private void CheckIfWebSocketRequest(Nequeo.Net.WebSockets.WebSocketContext webSocketContext)
{
// Make sure all handshaking has complete before continuing.
if (!webSocketContext.HandshakeComplete)
{
// Get the request and response.
Nequeo.Net.WebSockets.WebSocketRequest request = webSocketContext.WebSocketRequest;
Nequeo.Net.WebSockets.WebSocketResponse response = webSocketContext.WebSocketResponse;
Nequeo.Net.Http.Common.HttpStatusCode statusCode = null;
// If not a web socket request.
if (!webSocketContext.WebSocketRequest.IsWebSocketRequest)
{
// Get the bad request.
statusCode = Nequeo.Net.Http.Utility.GetStatusCode(400);
// Send bad request.
response.Server = base.Name;
response.ContentLength = 0;
response.StatusCode = statusCode.Code;
response.StatusDescription = statusCode.Description;
response.ProtocolVersion = request.ProtocolVersion;
}
else
{
// Get the internal error.
statusCode = Nequeo.Net.Http.Utility.GetStatusCode(500);
// Send internal error.
response.Server = base.Name;
response.ContentLength = 0;
response.StatusCode = statusCode.Code;
response.StatusDescription = statusCode.Description;
response.ProtocolVersion = request.ProtocolVersion;
}
// Not valid.
throw new Exception("Not a valid WebSocket request.");
}
}
/// <summary>
/// Http context.
/// </summary>
/// <param name="sender"></param>
/// <param name="context"></param>
private void HttpContext(object sender, Nequeo.Net.Http.HttpContext context)
{
System.IO.MemoryStream unzip = null;
System.IO.MemoryStream zip = null;
Nequeo.Net.Http.HttpRequest request = null;
Nequeo.Net.Http.HttpResponse response = null;
byte[] responseData = null;
byte[] requestBuffer = null;
try
{
// Get the context data.
request = context.HttpRequest;
response = context.HttpResponse;
// if request context exists.
if (request.ContentLength > 0)
{
// Read the data.
requestBuffer = new byte[(int)request.ContentLength];
request.Read(requestBuffer, 0, (int)request.ContentLength);
}
// Set the response.
response.Server = _httpServer.Name;
response.StatusCode = 200;
response.StatusDescription = "OK";
response.KeepAlive = false;
response.ProtocolVersion = request.ProtocolVersion;
// Get the local path.
string pathBase = _basePath.TrimEnd(new char[] { '\\' }) + "\\";
string pathLocal = request.Url.LocalPath.Replace("/", "\\").TrimStart(new char[] { '\\' });
string path = pathBase + pathLocal;
// If the path not exists.
if (!System.IO.File.Exists(path))
{
// default.htm.
path = pathBase + pathLocal.TrimEnd(new char[] { '\\' }) + "\\default.htm";
if (!System.IO.File.Exists(path))
{
// default.html.
path = pathBase + pathLocal.TrimEnd(new char[] { '\\' }) + "\\default.html";
if (!System.IO.File.Exists(path))
{
// index.htm.
path = pathBase + pathLocal.TrimEnd(new char[] { '\\' }) + "\\index.htm";
if (!System.IO.File.Exists(path))
{
// index.html.
path = pathBase + pathLocal.TrimEnd(new char[] { '\\' }) + "\\index.html";
if (!System.IO.File.Exists(path))
{
throw new Exception("Resource can not be found.");
}
}
}
}
}
// Set the content type.
response.ContentType = Data.MimeType.GetMimeType(System.IO.Path.GetExtension(path));
// If in cache then get the file data.
if (Data.Helper.FileCache.ContainsKey(path))
{
// If in the cache then check to see if the file has changed.
FileInfo fileInfo = new System.IO.FileInfo(path);
// If the file has changed, then reload the file.
if ((fileInfo.Length != Data.Helper.FileCache.GetFileSize(path)) || Data.Helper.FileCache.HasBeenModified(path, fileInfo.LastWriteTime))
{
// Load the static file from base.
responseData = System.IO.File.ReadAllBytes(path);
// Set the new file data.
Data.Helper.FileCache.Set(path, responseData);
Data.Helper.FileCache.SetModifiedTime(path, fileInfo.LastWriteTime);
}
else
{
// Load from the cache.
responseData = Data.Helper.FileCache.Get(path);
}
}
else
{
// Load the static file from base.
responseData = System.IO.File.ReadAllBytes(path);
// If cache size has not been reached.
if (Data.Helper.FileCache.GetCacheSize() <= Nequeo.Net.Properties.Settings.Default.HttpStaticMaxCacheSize)
{
// Add the file data to the cache.
Data.Helper.FileCache.Add(path, responseData);
Data.Helper.FileCache.SetModifiedTime(path, DateTime.Now);
}
}
}
catch
{
try
{
if (response != null)
{
response.ContentType = "text/html";
response.ContentLength = 0;
response.StatusCode = 400;
response.StatusDescription = "Bad Request";
Nequeo.Net.Http.Common.HttpStatusCode statusCode = Nequeo.Net.Http.Utility.GetStatusCode(400);
responseData = Encoding.Default.GetBytes("<html>" + statusCode.HtmlHead + statusCode.HtmlBody + "</html>");
}
}
catch { }
}
try
{
// If requesting gzip data.
if (request.AcceptEncoding != null && request.AcceptEncoding.Contains("gzip"))
{
// Create the compression.
unzip = new System.IO.MemoryStream(responseData);
zip = new System.IO.MemoryStream();
Nequeo.IO.Compression.GZipStream.Compress(unzip, zip);
// Send the data.
response.ContentLength = zip.Length;
response.ContentEncoding = "gzip";
response.WriteHttpHeaders();
response.Write(zip.ToArray(), 0, (int)zip.Length);
}
else
{
response.ContentLength = responseData.Length;
response.WriteHttpHeaders();
response.Write(responseData, 0, (int)responseData.Length);
}
response.Flush();
}
catch { }
finally
{
if (unzip != null)
{
unzip.Dispose();
}
if (zip != null)
{
zip.Dispose();
}
responseData = null;
requestBuffer = null;
unzip = null;
zip = null;
}
}
