private ResolveResults Resolve(string path, NancyContext context, IRouteCache routeCache)
{
if (routeCache.IsEmpty())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] No routes available"));
return(new ResolveResults
{
Selected = new ResolveResult(new NotFoundRoute(context.Request.Method, path), DynamicDictionary.Empty, null, null, null)
});
}
var routes =
routeCache.GetRouteCandidates();
// Condition
routes =
routes.Filter(context, "Invalid condition", (ctx, route) => {
var validCondition =
((route.Item3.Condition == null) || (route.Item3.Condition(ctx)));
return(new Tuple <bool, RouteCandidate>(
validCondition,
route
));
});
if (!routes.Item1.Any())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] No route had a valid condition"));
return(new ResolveResults
{
Selected = new ResolveResult(new NotFoundRoute(context.Request.Method, path), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
});
}
// Path
routes =
routes.Filter(context, "Path did not match", (ctx, route) => {
var validationResult =
this.routePatternMatcher.Match(path, route.Item3.Path, route.Item3.Segments, context);
var routeToReturn =
(validationResult.IsMatch) ? new RouteCandidate(route.Item1, route.Item2, route.Item3, validationResult) : route;
return(new Tuple <bool, RouteCandidate>(
validationResult.IsMatch,
routeToReturn
));
});
if (!routes.Item1.Any())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] No route matched the requested path"));
return(new ResolveResults
{
Selected = new ResolveResult(new NotFoundRoute(context.Request.Method, path), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
});
}
// Method
routes =
routes.Filter(context, "Request method did not match", (ctx, route) => {
var routeMethod =
route.Item3.Method.ToUpperInvariant();
var requestMethod =
ctx.Request.Method.ToUpperInvariant();
var methodIsValid =
routeMethod.Equals(requestMethod) || (routeMethod.Equals("GET") && requestMethod.Equals("HEAD"));
return(new Tuple <bool, RouteCandidate>(
methodIsValid,
route
));
});
if (!routes.Item1.Any())
{
var allowedMethods = routes.Item2.Values.SelectMany(x => x.Select(y => y.Item3.Method)).Distinct();
if (context.Request.Method.Equals("OPTIONS"))
{
return(new ResolveResults
{
Selected = new ResolveResult(new OptionsRoute(context.Request.Path, allowedMethods), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
});
}
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] Route Matched But Method Not Allowed"));
return(new ResolveResults
{
Selected = new ResolveResult(new MethodNotAllowedRoute(path, context.Request.Method, allowedMethods), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
});
}
// Exact match
var exactMatchResults =
routes.Filter(context, "No exact match", (ctx, route) => {
var routeIsExactMatch =
!route.Item4.Parameters.GetDynamicMemberNames().Any();
return(new Tuple <bool, RouteCandidate>(
routeIsExactMatch,
route
));
});
if (exactMatchResults.Item1.Any())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] Found exact match route"));
return(new ResolveResults
{
Selected = this.CreateRouteAndParametersFromMatch(context, exactMatchResults.Item1.First()),
Rejected = exactMatchResults.Item2
});
}
// First match out of multiple candidates
var selected =
GetTopRouteMatchesNew(routes).First();
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] Selected best match"));
return(new ResolveResults
{
Selected = this.CreateRouteAndParametersFromMatch(context, selected),
Rejected = exactMatchResults.Item2
});
}
private ResolveResults Resolve(string path, NancyContext context, IRouteCache routeCache)
{
if (routeCache.IsEmpty())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] No routes available"));
return new ResolveResults
{
Selected = new ResolveResult(new NotFoundRoute(context.Request.Method, path), DynamicDictionary.Empty, null, null, null)
};
}
var routes =
routeCache.GetRouteCandidates();
// Condition
routes =
routes.Filter(context, "Invalid condition", (ctx, route) =>
{
var validCondition =
((route.Item3.Condition == null) || (route.Item3.Condition(ctx)));
return new Tuple<bool, RouteCandidate>(
validCondition,
route
);
});
if (!routes.Item1.Any())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] No route had a valid condition"));
return new ResolveResults
{
Selected = new ResolveResult(new NotFoundRoute(context.Request.Method, path), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
};
}
// Path
routes =
routes.Filter(context, "Path did not match", (ctx, route) =>
{
var validationResult =
this.routePatternMatcher.Match(path, route.Item3.Path, route.Item3.Segments, context);
var routeToReturn =
(validationResult.IsMatch) ? new RouteCandidate(route.Item1, route.Item2, route.Item3, validationResult) : route;
return new Tuple<bool, RouteCandidate>(
validationResult.IsMatch,
routeToReturn
);
});
if (!routes.Item1.Any())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] No route matched the requested path"));
return new ResolveResults
{
Selected = new ResolveResult(new NotFoundRoute(context.Request.Method, path), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
};
}
// Method
routes =
routes.Filter(context, "Request method did not match", (ctx, route) =>
{
var routeMethod =
route.Item3.Method.ToUpperInvariant();
var requestMethod =
ctx.Request.Method.ToUpperInvariant();
var methodIsValid =
routeMethod.Equals(requestMethod) || (routeMethod.Equals("GET") && requestMethod.Equals("HEAD"));
return new Tuple<bool, RouteCandidate>(
methodIsValid,
route
);
});
if (!routes.Item1.Any())
{
var allowedMethods = routes.Item2.Values.SelectMany(x => x.Select(y => y.Item3.Method)).Distinct();
if (context.Request.Method.Equals("OPTIONS"))
{
return new ResolveResults
{
Selected = new ResolveResult(new OptionsRoute(context.Request.Path, allowedMethods), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
};
}
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] Route Matched But Method Not Allowed"));
return new ResolveResults
{
Selected = new ResolveResult(new MethodNotAllowedRoute(path, context.Request.Method, allowedMethods), DynamicDictionary.Empty, null, null, null),
Rejected = routes.Item2
};
}
// Exact match
var exactMatchResults =
routes.Filter(context, "No exact match", (ctx, route) =>
{
var routeIsExactMatch =
!route.Item4.Parameters.GetDynamicMemberNames().Any();
return new Tuple<bool, RouteCandidate>(
routeIsExactMatch,
route
);
});
if (exactMatchResults.Item1.Any())
{
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] Found exact match route"));
return new ResolveResults
{
Selected = this.CreateRouteAndParametersFromMatch(context, exactMatchResults.Item1.First()),
Rejected = exactMatchResults.Item2
};
}
// First match out of multiple candidates
var selected =
GetTopRouteMatchesNew(routes).First();
context.Trace.TraceLog.WriteLog(s => s.AppendLine("[DefaultRouteResolver] Selected best match"));
return new ResolveResults
{
Selected = this.CreateRouteAndParametersFromMatch(context, selected),
Rejected = exactMatchResults.Item2
};
}
