public void TestRouteTableSimple()
{
var t = new RouteTable();
t.AddRoute("/user/{id}", "ID");
t.AddRoute("/user/{id}/action", "ACTION");
t.AddRoute("/user/{id}/action/{level}", "LEVEL");
t.AddRoute("", "DEFAULT");
var rdefault = t.Find("/not/a/route");
Assert.AreNotEqual(null, rdefault, "Match a default route");
var rid = t.Find("/user/person");
var raction = t.Find("/user/person/action");
var rlevel = t.Find("/user/person/action/verbose");
Assert.AreNotEqual(null, rid, "Match the id route");
Assert.AreNotEqual(null, raction, "Match the action route");
Assert.AreNotEqual(null, rlevel, "Match the level route");
Assert.AreEqual("ID", rid.Route.Data, $"Id route is id ({rid.Route.Data})");
Assert.AreEqual("ACTION", raction.Route.Data, $"Action route is id ({raction.Route.Data})");
Assert.AreEqual("LEVEL", rlevel.Route.Data, $"Level route is id ({rlevel.Route.Data})");
Assert.AreEqual("person", rid.Values["id"], $"Id route id is person");
Assert.AreEqual(1, raction.Values.Count, $"action matched 1");
Assert.AreEqual("person", rlevel.Values["id"], $"Level id is person");
Assert.AreEqual("verbose", rlevel.Values["level"], $"Level level is verbose");
Assert.AreEqual(2, rlevel.Values.Count, $"action route matched 2");
}
internal static RouteTable BuildRouteTable(RouterMetadata metadata, Blueprint map)
{
logger.Debug($"Building routing table for {metadata.Name}.");
var table = new RouteTable();
var directlyConnectedSites = map.Sites.Where(s => s.Routers.Any(r => r.Name == metadata.Name)).ToList();
var endpointCardinality = map.Sites.SelectMany(s => s.Endpoints, (site, endpoint) => new
{
site,
endpoint
}).GroupBy(x => x.endpoint).ToDictionary(g => g.Key, g => g.Count() > 1);
foreach (var iface in metadata.Interfaces)
{
var site = FindSiteConnectedToInterface(map, metadata.Name, iface);
foreach (var endpoint in site.Endpoints)
{
if (endpointCardinality[endpoint])
{
table.AddRoute((i, d) => i != iface && d.Endpoint == endpoint && d.Site == site.Name, $"Interface <> {iface} AND Endpoint = {endpoint} AND Site = {site.Name}", null, iface);
}
else
{
table.AddRoute((i, d) => i != iface && d.Endpoint == endpoint, $"Interface <> {iface} AND Endpoint = {endpoint}", null, iface);
}
}
var nearbyGateways = site.Routers.Where(r => r.Name != metadata.Name);
foreach (var gateway in nearbyGateways)
{
var destinations = FindDestinations(gateway, metadata, map, new List <Site>(directlyConnectedSites)).ToArray();
foreach (var destination in destinations)
{
if (endpointCardinality[destination.Endpoint])
{
table.AddRoute((i, d) => i != gateway.Interface && d.Endpoint == destination.Endpoint && d.Site == destination.Site, $"Interface <> {gateway.Interface} AND Endpoint = {destination.Endpoint} AND Site = {destination.Site}", gateway.Name, iface);
}
else
{
table.AddRoute((i, d) => i != gateway.Interface && d.Endpoint == destination.Endpoint, $"Interface <> {gateway.Interface} AND Endpoint = {destination.Endpoint}", gateway.Name, iface);
}
}
}
}
return(table);
}
public static RouteTable InitializeRouteTable()
{
RouteTable routeTable = new RouteTable();
routeTable.AddRoute("get", "restricted", new RouteEntry()
{
RouteProvider = (continuation, context) =>
{
throw new ApplicationException("You can't do that.");
}
});
return(routeTable);
}
/// <summary>
/// Add a route with session expiration checking.
/// </summary>
public static void AddExpirableRoute(this RouteTable routeTable,
string verb,
string path,
Func <WorkflowContinuation <ContextWrapper>, ContextWrapper, Session, PathParams, WorkflowState> routeHandler)
{
routeTable.AddRoute(verb, path, new RouteEntry()
{
SessionExpirationHandler = (continuation, context, session, parms) =>
{
/* Your expiration check */
return(WorkflowState.Continue);
},
RouteHandler = routeHandler,
});
}
public static RouteTable InitializeRouteTable()
{
RouteTable routeTable = new RouteTable(websitePath);
// Test parameterized URL
routeTable.AddRoute("get", "param/{p1}/subpage/{p2}", new RouteEntry()
{
RouteHandler = (continuation, wrapper, session, parms) =>
{
wrapper.SetPendingResponse("<p>p1 = " + parms["p1"] + "</p><p>p2 = " + parms["p2"] + "</p>");
return(WorkflowState.Continue);
}
});
// Example usage where we re-use the expirable session and authorization checks.
// routeTable.AddExpirableRoute("get", "somepath", myRouteHandler);
// routeTable.AddExpirableAuthorizedRoute("get", "someotherpath", myRouteHandler);
// Test session expired and authorization flags
routeTable.AddRoute("get", "testsession", new RouteEntry()
{
SessionExpirationHandler = (continuation, wrapper, session, parms) =>
{
if (session.Expired)
{
// Redirect instead of throwing an exception.
wrapper.Context.Redirect(@"ErrorPages\expiredSession");
return(WorkflowState.Abort);
}
else
{
return(WorkflowState.Continue);
}
},
AuthorizationHandler = (continuation, wrapper, session, parms) =>
{
if (!session.Authorized)
{
// Redirect instead of throwing an exception.
wrapper.Context.Redirect(@"ErrorPages\notAuthorized");
return(WorkflowState.Abort);
}
else
{
return(WorkflowState.Continue);
}
},
RouteHandler = (continuation, wrapper, session, parms) =>
{
wrapper.SetPendingResponse("<p>Looking good!</p>");
return(WorkflowState.Continue);
}
});
// Set the session expired and authorization flags for testing purposes.
routeTable.AddRoute("get", "SetState", new RouteEntry()
{
RouteHandler = (continuation, wrapper, session, pathParams) =>
{
Dictionary <string, string> parms = wrapper.Context.GetUrlParameters();
session.Expired = GetBooleanState(parms, "Expired", false);
session.Authorized = GetBooleanState(parms, "Authorized", false);
wrapper.SetPendingResponse(
"<p>Expired has been set to " + session.Expired + "</p>" +
"<p>Authorized has been set to " + session.Authorized + "</p>");
return(WorkflowState.Continue);
}
});
// Test a form post
routeTable.AddRoute("post", "login", "application/x-www-form-urlencoded", new RouteEntry()
{
RouteHandler = (continuation, wrapper, session, pathParams) =>
{
string data = new StreamReader(wrapper.Context.Request.InputStream, wrapper.Context.Request.ContentEncoding).ReadToEnd();
wrapper.Context.Redirect("Welcome");
// As a redirect, we don't want any downstream processing.
return(WorkflowState.Done);
}
});
// Test a form post with JSON content
routeTable.AddRoute("post", "login", "application/json; charset=UTF-8", new RouteEntry()
{
RouteHandler = (continuation, wrapper, session, pathParams) =>
{
string data = new StreamReader(wrapper.Context.Request.InputStream, wrapper.Context.Request.ContentEncoding).ReadToEnd();
wrapper.Context.RespondWith("Welcome!");
// As an AJAX response, we don't want any downstream processing.
return(WorkflowState.Done);
}
});
routeTable.AddRoute("get", "loadtests", new RouteEntry()
{
RouteHandler = (continuation, wrapper, session, pathParams) =>
{
long nanosecondsPerTick = (1000L * 1000L * 1000L) / System.Diagnostics.Stopwatch.Frequency;
if (Server.Samples == 0)
{
wrapper.SetPendingResponse("<p>No samples!</p>");
}
else
{
long avgTime = Server.CumulativeTime * nanosecondsPerTick / Server.Samples;
string info = String.Format("<p>{0} responses, avg. response time = {1}ns</p><p>Resetting sample info.</p>", Server.Samples, avgTime.ToString("N0"));
Server.CumulativeTime = 0;
Server.Samples = 0;
wrapper.SetPendingResponse(info);
}
return(WorkflowState.Continue);
}
});
routeTable.AddRoute("get", "sayhi", new RouteEntry()
{
RouteHandler = (continuation, wrapper, session, pathParams) =>
{
wrapper.SetPendingResponse("<p>hello</p>");
return(WorkflowState.Continue);
}
});
return(routeTable);
}
/// <summary>
/// Adds a generic rule to forward all traffic from <paramref name="incomingInterface"/> to <paramref name="outgoingInterface"/> optionally providing the gateway.
/// </summary>
public static void AddForwardRoute(this RouteTable routeTable, string incomingInterface, string outgoingInterface, string gateway = null)
{
routeTable.AddRoute((i, d) => i == incomingInterface, $"Interface = {incomingInterface}", gateway, outgoingInterface);
}
public static RouteTable InitializeRouteTable()
{
RouteTable routeTable = new RouteTable();
routeTable.AddRoute("get", "restricted", new RouteEntry()
{
RouteProvider = (continuation, context, session) =>
{
throw new ApplicationException("You can't do that.");
}
});
routeTable.AddRoute("get", "testsession", new RouteEntry()
{
SessionExpirationProvider = (continuation, context, session) =>
{
if (session.Expired)
{
throw new ApplicationException("Session has expired!");
}
else
{
return(WorkflowState.Continue);
}
},
AuthorizationProvider = (continuation, context, session) =>
{
if (!session.Authorized)
{
throw new ApplicationException("Not authorized!");
}
else
{
return(WorkflowState.Continue);
}
},
RouteProvider = (continuation, context, session) =>
{
context.RespondWith("<p>Looking good!</p>");
return(WorkflowState.Done);
}
});
routeTable.AddRoute("get", "SetState", new RouteEntry()
{
RouteProvider = (continuation, context, session) =>
{
Dictionary <string, string> parms = context.GetUrlParameters();
session.Expired = GetBooleanState(parms, "Expired", false);
session.Authorized = GetBooleanState(parms, "Authorized", false);
context.RespondWith(
"<p>Expired has been set to " + session.Expired + "</p>" +
"<p>Authorized has been set to " + session.Authorized + "</p>");
return(WorkflowState.Done);
}
});
return(routeTable);
}
