public async Task Invoke(IDictionary<string, object> environment)
{
int maxRedirects = _maxRedirects;
while (maxRedirects >= 0)
{
await _next(environment);
var response = new OwinResponse(environment);
if (response.StatusCode == 302 || response.StatusCode == 301)
{
string url = BuildRedirectUrl(response);
// Clear the env so we can make a new request
environment.Clear();
// Populate the env with new request data
RequestBuilder.BuildGet(environment, url);
}
else
{
break;
}
maxRedirects--;
}
}
public Task Invoke(IDictionary<string, object> env)
{
var request = new OwinRequest(env);
var logger = _kernel.Get<ILogger>();
var requestHeaders = new StringBuilder();
foreach (var header in request.Headers)
{
requestHeaders.AppendLine(header.Key + " = " + request.GetHeader(header.Key));
}
Task task = _next(env);
var response = new OwinResponse(env);
var responseHeaders = new StringBuilder();
foreach (var header in response.Headers)
{
responseHeaders.AppendLine(header.Key + " = " + response.GetHeader(header.Key));
}
logger.Log("URI: " + request.Uri + " " + Environment.NewLine +
"Request Headers: \r\n " + requestHeaders.ToString() + Environment.NewLine +
"Response Headers: \r\n " + responseHeaders.ToString());
return task;
}
private void SetHttp2UpgradeHeadersAndStatusCode(OwinResponse owinResponse)
{
owinResponse.StatusCode = 101;
owinResponse.ReasonPhrase = "Switching Protocols";
owinResponse.SetHeader("Connection", "Upgrade");
owinResponse.SetHeader("Upgrade", "HTTP/2.0");
}
protected override Task<HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
OwinRequest owinRequest = OwinRequest.Create();
owinRequest.Scheme = request.RequestUri.Scheme;
owinRequest.Method = request.Method.ToString();
owinRequest.Path = request.RequestUri.AbsolutePath;
owinRequest.QueryString = request.RequestUri.Query.TrimStart('?');
owinRequest.CallCancelled = cancellationToken;
foreach (var header in request.Headers)
{
owinRequest.AddHeaderUnmodified(header.Key, header.Value);
}
HttpContent requestContent = request.Content;
if (requestContent != null)
{
foreach (var header in request.Content.Headers)
{
owinRequest.AddHeaderUnmodified(header.Key, header.Value);
}
}
else
{
requestContent = new StreamContent(Stream.Null);
}
return requestContent.ReadAsStreamAsync()
.Then(requestBody =>
{
owinRequest.Body = requestBody;
var responseMemoryStream = new MemoryStream();
var owinResponse = new OwinResponse(owinRequest)
{
Body = responseMemoryStream
};
return _invoke.Invoke(owinRequest.Dictionary)
.Then(() =>
{
var response = new HttpResponseMessage();
response.StatusCode = (HttpStatusCode)owinResponse.StatusCode;
response.ReasonPhrase = owinResponse.ReasonPhrase;
response.RequestMessage = request;
// response.Version = owinResponse.Protocol;
responseMemoryStream.Seek(0, SeekOrigin.Begin);
response.Content = new StreamContent(responseMemoryStream);
foreach (var header in owinResponse.Headers)
{
if (!response.Headers.TryAddWithoutValidation(header.Key, header.Value))
{
response.Content.Headers.TryAddWithoutValidation(header.Key, header.Value);
}
}
return response;
});
});
}
public Task Invoke(IDictionary<string, object> environment)
{
var request = new OwinRequest(environment);
if (string.IsNullOrEmpty(_options.Path) || string.Equals(request.Path, _options.Path, StringComparison.OrdinalIgnoreCase))
{
// TODO: Make it pretty
OwinResponse response = new OwinResponse(environment);
response.ContentType = "text/html";
StringBuilder builder = new StringBuilder();
builder.AppendLine("<html>")
.AppendLine("<head>")
.AppendLine("<title>")
.AppendLine("Welcome")
.AppendLine("</title>")
.AppendLine("</head>")
.AppendLine("<body>")
.AppendLine("<H1>Welcome</H1>")
.AppendLine("<p>You have reached the default application page.</p>")
.AppendLine("<H4>Additional Resources:</H4>")
.AppendLine("<ul>")
.AppendLine("<li><a href=\"http://katanaproject.codeplex.com/\">Katana Project</a>")
.AppendLine("<li><a href=\"http://www.owin.org/\">owin.org</a>")
.AppendLine("</ul>")
.AppendLine("</body>")
.AppendLine("</html>");
return response.WriteAsync(builder.ToString());
}
return _next(environment);
}
public async Task Invoke(IDictionary<string, object> environment)
{
await _next(environment);
var response = new OwinResponse(environment);
if (response.Body == Stream.Null)
{
return;
}
string connection = response.GetHeader("Connection");
if (response.Protocol.Equals("HTTP/1.1", StringComparison.OrdinalIgnoreCase) &&
String.Equals(connection, "Close", StringComparison.OrdinalIgnoreCase))
{
var ms = new MemoryStream();
using (response.Body)
{
await response.Body.CopyToAsync(ms).ConfigureAwait(continueOnCapturedContext: false);
}
ms.Seek(0, SeekOrigin.Begin);
response.Body = ms;
}
}
public async Task Invoke(IDictionary<string, object> env)
{
var request = new OwinRequest(env);
var response = new OwinResponse(env);
int id;
if (int.TryParse(request.Path.Substring(1), out id))
{
switch (request.Method)
{
case "GET":
var job = await _jobList.GetJob(id);
JsonSerializer.SerializeToStream(job, response.Body);
break;
case "DELETE":
_jobList.DeleteJob(id);
break;
default:
throw new NotImplementedException();
}
}
else
{
JsonSerializer.SerializeToStream(await _jobList.ListJobs(), response.Body);
}
}
public Task Invoke(IDictionary<string, object> env)
{
var request = new OwinRequest(env);
var response = new OwinResponse(env);
if (!request.Uri.Scheme.Equals("https", StringComparison.OrdinalIgnoreCase))
{
var builder = new UriBuilder(request.Uri);
builder.Scheme = "https";
if (request.Uri.IsDefaultPort)
{
builder.Port = -1;
}
response.SetHeader("Location", builder.ToString());
response.StatusCode = 302;
return TaskAsyncHelper.Empty;
}
else
{
return _next(env);
}
}
public void Init()
{
table = new Mock<IRouteTable>();
renderer = new Mock<IRazorRenderer>();
request = new OwinRequest(new Dictionary<string, object>());
response = new OwinResponse(new Dictionary<string, object>()) { Headers = new Dictionary<string, string[]>(), Body = new MemoryStream() };
middleware = new RazorMiddleware(table.Object, renderer.Object);
}
Task UpgradeToWebSockets(OwinRequest request, OwinResponse response, Func<Task> next)
{
if (!request.CanAccept)
return next();
request.Accept(WebSocketEcho);
return Task.FromResult<object>(null);
}
public Task Invoke(IDictionary<string, object> env)
{
var request = new OwinRequest(env);
var response = new OwinResponse(env);
if (!request.IsLocal)
{
response.StatusCode = (int)HttpStatusCode.ServiceUnavailable;
return Task.FromResult(0);
}
return _next(env);
}
private static void RewindResponseBody(IDictionary<string, object> environment)
{
var response = new OwinResponse(environment);
var ms = response.Body as MemoryStream;
if (ms != null)
{
// Rewind
ms.Seek(0, SeekOrigin.Begin);
}
}
private static Task InvokeHandler(OwinResponse res, Func<OwinRequest, object> routeHandler, OwinRequest req)
{
var result = routeHandler(req);
var flaskyResponse = result as IResponse;
if(flaskyResponse != null)
{
return flaskyResponse.Write(res);
}
res.ContentType = "text/plain";
return res.WriteAsync(result.ToString());
}
public Task Invoke(IDictionary<string, object> environment)
{
var request = new OwinRequest(environment);
if (_routeMatcher.HasMatch(request))
{
var response = new OwinResponse(environment);
var routeHandler = _routeMatcher.GetMatch(request);
return InvokeHandler(response, routeHandler, request);
}
return _next(environment);
}
public StaticCompressionContext(IDictionary<string, object> environment, StaticCompressionOptions options, IEncoding encoding, ICompressedStorage storage)
{
_environment = environment;
_options = options;
_encoding = encoding;
_encodingSuffix = "^" + _encoding.Name;
_encodingSuffixQuote = "^" + _encoding.Name + "\"";
_storage = storage;
_request = new OwinRequest(environment);
_response = new OwinResponse(environment);
}
public Task Invoke(IDictionary<string, object> environment)
{
var request = new OwinRequest(environment);
if (string.IsNullOrEmpty(_options.Path) || string.Equals(request.Path, _options.Path, StringComparison.OrdinalIgnoreCase))
{
// TODO: Make it pretty
OwinResponse response = new OwinResponse(environment);
response.ContentType = "text/plain";
return response.WriteAsync("Welcome to Katana");
}
return _next(environment);
}
public async Task Invoke(IDictionary<string, object> environment)
{
await _next(environment);
var response = new OwinResponse(environment);
var encoding = response.GetHeader("Content-Encoding");
if (String.Equals(encoding, "gzip", StringComparison.OrdinalIgnoreCase))
{
response.Body = new GZipStream(response.Body, CompressionMode.Decompress);
}
}
public Task Invoke(IDictionary<string, object> environment)
{
OwinRequest request = new OwinRequest(environment);
OwinResponse response = new OwinResponse(environment);
response.ContentType = "text/plain";
string responseText = request.GetHeader("breadcrumbs") + "\r\n"
+ "PathBase: " + request.PathBase + "\r\n"
+ "Path: " + request.Path + "\r\n";
return response.WriteAsync(responseText);
}
// Invoked once per request.
public Task Invoke(IDictionary<string, object> environment)
{
OwinResponse owinResponse = new OwinResponse(environment);
string responseText = "Hello World";
byte[] responseBytes = Encoding.UTF8.GetBytes(responseText);
owinResponse.SetHeader("Content-Length", responseBytes.Length.ToString(CultureInfo.InvariantCulture));
owinResponse.SetHeader("Content-Type", "text/plain");
return owinResponse.Body.WriteAsync(responseBytes, 0, responseBytes.Length);
// return Task.FromResult<object>(null);
}
public async Task Invoke(IDictionary<string, object> environment)
{
var request = new OwinRequest(environment);
Uri uri = request.Uri;
// Create a stream for the host and port so we can send the request
Stream stream = await _streamFactory.CreateStream(uri).ConfigureAwait(continueOnCapturedContext: false);
var requestWriter = new StreamWriter(stream);
// Request line
requestWriter.WriteLine("{0} {1} {2}", request.Method, uri.LocalPath, request.Protocol);
// Write headers
foreach (var header in request.Headers)
{
requestWriter.WriteLine("{0}: {1}", header.Key, request.GetHeader(header.Key));
}
// End headers
requestWriter.WriteLine();
if (request.Body == null)
{
// End request
requestWriter.WriteLine();
}
// Flush buffered content to the stream async
await requestWriter.FlushAsync().ConfigureAwait(continueOnCapturedContext: false);
if (request.Body != null)
{
// Copy the body to the request
await request.Body.CopyToAsync(stream).ConfigureAwait(continueOnCapturedContext: false);
}
var response = new OwinResponse(environment);
// Parse the response
HttpParser.ParseResponse(stream, (protocol, statusCode, reasonPhrase) =>
{
response.Protocol = protocol;
response.StatusCode = statusCode;
response.ReasonPhrase = reasonPhrase;
},
(key, value) => response.SetHeader(key, value));
// Set the body to the rest of the stream
response.Body = stream;
}
private static OwinRequest CreateRequest(string url, string method)
{
var uri = new Uri(url);
var request = OwinRequest.Create();
request.Protocol = "HTTP/1.1";
request.Method = method;
// Setup a empty stream by default
var response = new OwinResponse(request);
response.Body = new MemoryStream();
BuildRequestFromUri(request, uri);
return request;
}
private static async Task SendFileToResponse(OwinResponse response, CrossAppDomainResponseFile file) {
if(response.CanSendFile)
{
await response.SendFileAsync(file.Path, file.Length, file.Offset, CancellationToken.None);
return;
}
var buffer = new byte[file.Length - file.Offset];
using (var stream = File.OpenRead(file.Path)) {
stream.Seek(file.Offset, SeekOrigin.Begin);
await stream.ReadAsync(buffer, 0, (int)file.Length);
}
await response.WriteAsync(buffer);
}
public async Task Invoke(IDictionary<string, object> env) {
OwinRequest request = new OwinRequest(env);
if (request.Path == "/raw") {
OwinResponse response = new OwinResponse(request);
response.ContentType = "text/plain";
await response.WriteAsync("Hello from OWIN!");
}
else {
await _nextFunc(env);
}
}
public async Task ScriptFileCanBeExecutedByName()
{
var factory = new RoslynAppLoaderFactory();
Func<string, Action<IAppBuilder>> loader = factory.Create(_ => null);
Action<IAppBuilder> startup = loader.Invoke("Simple.csx");
var builder = new AppBuilder();
startup.Invoke(builder);
var app = (AppFunc)builder.Build(typeof(AppFunc));
OwinRequest req = OwinRequest.Create();
await app.Invoke(req.Dictionary);
var res = new OwinResponse(req);
res.StatusCode.ShouldBe(24601);
}
public async Task Invoke(IDictionary<string, object> env)
{
object value;
if (env.TryGetValue("server.User", out value))
{
var windowsPrincipal = value as WindowsPrincipal;
if (windowsPrincipal != null && windowsPrincipal.Identity.IsAuthenticated)
{
await _next(env);
var request = new OwinRequest(env);
var response = new OwinResponse(env);
if (response.StatusCode == 401)
{
// We're going no add the identifier claim
var nameClaim = windowsPrincipal.FindFirst(ClaimTypes.Name);
// This is the domain name
string name = nameClaim.Value;
// If the name is something like DOMAIN\username then
// grab the name part
var parts = name.Split(new[] { '\\' }, 2);
string shortName = parts.Length == 1 ? parts[0] : parts[parts.Length - 1];
// REVIEW: Do we want to preserve the other claims?
// Normalize the claims here
var claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.NameIdentifier, name));
claims.Add(new Claim(ClaimTypes.Name, shortName));
claims.Add(new Claim(ClaimTypes.AuthenticationMethod, "Windows"));
var identity = new ClaimsIdentity(claims, Constants.JabbRAuthType);
var claimsPrincipal = new ClaimsPrincipal(identity);
response.SignIn(claimsPrincipal);
response.StatusCode = 302;
response.SetHeader("Location", request.PathBase + request.Path);
}
return;
}
}
await _next(env);
}
public static AppFunc Middleware(AppFunc app)
{
return env =>
{
var request = new OwinRequest(env);
var websocketVersion = request.Get<string>(OwinConstants.WebSocket.Version);
WebSocketAccept webSocketAccept = request.Get<WebSocketAccept>(OwinConstants.WebSocket.Accept);
if (request.CanUpgrade && websocketVersion == null) // If we have opaque support and no WebSocket support yet
{
if (IsWebSocketRequest(env))
{
// TODO: check for correct requested version of WebSocket protocol
IDictionary<string, object> acceptOptions = null;
WebSocketFunc webSocketFunc = null;
// Announce websocket support
env[OwinConstants.WebSocket.Accept] = new WebSocketAccept(
(options, callback) =>
{
acceptOptions = options;
webSocketFunc = callback;
env[OwinConstants.ResponseStatusCode] = 101;
});
return app(env).ContinueWith(t =>
{
OwinResponse response = new OwinResponse(env);
if (response.StatusCode == 101
&& webSocketFunc != null)
{
SetWebSocketResponseHeaders(env, acceptOptions);
request.UpgradeDelegate(acceptOptions, opaqueEnv =>
{
WebSocketLayer webSocket = new WebSocketLayer(opaqueEnv);
return webSocketFunc(webSocket.Environment)
.ContinueWith(tt => webSocket.CleanupAsync());
});
}
});
}
}
// else
return app(env);
};
}
private string BuildRedirectUrl(OwinResponse response)
{
string location = response.GetHeader("Location");
Uri uri;
if (Uri.TryCreate(location, UriKind.Relative, out uri))
{
// If location is relative, we need to build a full url
var previousRequest = new OwinRequest(response.Dictionary);
var uriBuilder = new UriBuilder(previousRequest.Uri);
uriBuilder.Path = location;
return uriBuilder.ToString();
}
return location;
}
private static Task RequestDump(OwinRequest request, OwinResponse response)
{
var builder = new StringBuilder();
builder.AppendLine("<h1>Katana demo op TechDays</h1>");
builder.AppendLine("<h2>request.Dictionary</h2>");
builder.Append("<table>");
foreach (var item in request.Dictionary)
{
builder.AppendFormat("<tr><td>{0}</td><td>{1}</td></tr>",
item.Key, item.Value);
}
builder.Append("</table>");
response.ContentType = "text/html";
return response.WriteAsync(builder.ToString());
}
/// <summary></summary>
/// <param name="environment"></param>
/// <returns></returns>
public async Task Invoke(IDictionary<string, object> environment)
{
OwinRequest request = new OwinRequest(environment);
OwinResponse response = new OwinResponse(environment);
CancellationToken cancellationToken = request.CallCancelled;
AuthenticationHeaderValue authorization;
string authorizationHeaderError;
if (!TryParseAuthorizationHeader(request, out authorization, out authorizationHeaderError))
{
response.StatusCode = 400;
cancellationToken.ThrowIfCancellationRequested();
await WriteMessage(authorizationHeaderError, response, cancellationToken);
return;
}
cancellationToken.ThrowIfCancellationRequested();
IBasicAuthenticationResult result = await AuthenticateAsync(authorization, cancellationToken);
int errorStatusCode;
string errorMessage;
if (!TryProcessResult(result, environment, out errorStatusCode, out errorMessage))
{
response.StatusCode = errorStatusCode;
cancellationToken.ThrowIfCancellationRequested();
await AddChallengeOnUnauthorizedAsync(response, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
await WriteMessage(errorMessage, response, cancellationToken);
return;
}
cancellationToken.ThrowIfCancellationRequested();
AuthenticationHeaderValue challenge = await _protocol.CreateChallengeAsync(cancellationToken);
if (!TryRegisterOnSendingHeaders(challenge, request, response, out errorMessage))
{
response.StatusCode = 500;
cancellationToken.ThrowIfCancellationRequested();
await WriteMessage(errorMessage, response, cancellationToken);
return;
}
cancellationToken.ThrowIfCancellationRequested();
await _next(environment);
}
public async Task Invoke(IDictionary<string, object> env)
{
var httpRequest = new Gate.Request(env);
var httpResponse = new OwinResponse(env);
string url;
Uri uri;
if (!httpRequest.Query.TryGetValue("url", out url) ||
String.IsNullOrEmpty(url) ||
!Uri.TryCreate(url, UriKind.Absolute, out uri) ||
!ImageContentProvider.IsValidImagePath(uri) ||
!IsAuthenticated(env))
{
httpResponse.StatusCode = 404;
return;
}
try
{
var request = (HttpWebRequest)WebRequest.Create(url);
request.CachePolicy = new RequestCachePolicy(RequestCacheLevel.Default);
var response = (HttpWebResponse)await request.GetResponseAsync();
if (!ImageContentProvider.IsValidContentType(response.ContentType) &&
response.ContentLength > _settings.ProxyImageMaxSizeBytes)
{
httpResponse.StatusCode = 404;
return;
}
httpResponse.SetHeader("Content-Type", response.ContentType);
httpResponse.StatusCode = (int)response.StatusCode;
using (response)
{
using (Stream stream = response.GetResponseStream())
{
await stream.CopyToAsync(httpResponse.Body);
}
}
}
catch
{
httpResponse.StatusCode = 404;
}
}
public bool Equals(OwinResponse other)
{
return(Equals(_dictionary, other._dictionary));
}
