private static HttpResponseMessage CreateBadRequestResponse( HttpControllerContext controllerContext )
{
Contract.Requires( controllerContext != null );
Contract.Ensures( Contract.Result<HttpResponseMessage>() != null );
var request = controllerContext.Request;
var exceptionFactory = new HttpResponseExceptionFactory( request );
return exceptionFactory.CreateBadRequestResponseForUnsupportedApiVersion( request.GetRequestedApiVersion() );
}
static HttpResponseMessage CreateBadRequestResponse(HttpControllerContext controllerContext)
{
Contract.Requires(controllerContext != null);
Contract.Ensures(Contract.Result <HttpResponseMessage>() != null);
var request = controllerContext.Request;
var model = new Lazy <ApiVersionModel>(controllerContext.ControllerDescriptor.GetApiVersionModel);
var exceptionFactory = new HttpResponseExceptionFactory(request, model);
return(exceptionFactory.CreateBadRequestResponse(request.GetRequestedApiVersion()));
}
private CandidateAction[] GetInitialCandidateList(HttpControllerContext controllerContext, bool ignoreVerbs = false)
{
Contract.Requires(controllerContext != null);
Contract.Ensures(Contract.Result <CandidateAction[]>() != null);
var actionName = default(string);
var incomingMethod = controllerContext.Request.Method;
var routeData = controllerContext.RouteData;
var candidates = default(CandidateAction[]);
if (routeData.Values.TryGetValue(RouteValueKeys.Action, out actionName))
{
var actionsFoundByName = standardActions.StandardActionNameMapping[actionName].ToArray();
if (actionsFoundByName.Length == 0)
{
var request = controllerContext.Request;
var versionNeutral = controllerContext.ControllerDescriptor.GetApiVersionModel().IsApiVersionNeutral;
var exceptionFactory = new HttpResponseExceptionFactory(request);
throw exceptionFactory.NewMethodNotAllowedException(versionNeutral, allowedMethods);
}
var candidatesFoundByName = new CandidateAction[actionsFoundByName.Length];
for (var i = 0; i < actionsFoundByName.Length; i++)
{
candidatesFoundByName[i] = new CandidateAction(actionsFoundByName[i]);
}
if (ignoreVerbs)
{
candidates = candidatesFoundByName;
}
else
{
candidates = FilterIncompatibleVerbs(incomingMethod, candidatesFoundByName);
}
}
else
{
if (ignoreVerbs)
{
candidates = standardActions.StandardCandidateActions;
}
else
{
candidates = FindActionsForVerb(incomingMethod, standardActions.CacheListVerbs, standardActions.StandardCandidateActions);
}
}
return(candidates);
}
HttpResponseMessage CreateSelectionError(HttpControllerContext controllerContext)
{
var actionsFoundByParams = FindMatchingActions(controllerContext, ignoreVerbs: true);
if (actionsFoundByParams.Count == 0)
{
return(CreateActionNotFoundResponse(controllerContext));
}
var request = controllerContext.Request;
var model = controllerContext.ControllerDescriptor.GetApiVersionModel();
var exceptionFactory = new HttpResponseExceptionFactory(request, new Lazy <ApiVersionModel>(() => model));
return(exceptionFactory.CreateMethodNotAllowedResponse(model.IsApiVersionNeutral, allowedMethods));
}
HttpResponseMessage CreateSelectionError(HttpControllerContext controllerContext)
{
Contract.Ensures(Contract.Result <HttpResponseMessage>() != null);
var actionsFoundByParams = FindMatchingActions(controllerContext, ignoreVerbs: true);
if (actionsFoundByParams.Count == 0)
{
return(CreateActionNotFoundResponse(controllerContext));
}
var request = controllerContext.Request;
var versionNeutral = controllerContext.ControllerDescriptor.GetApiVersionModel().IsApiVersionNeutral;
var exceptionFactory = new HttpResponseExceptionFactory(request);
return(exceptionFactory.CreateMethodNotAllowedResponse(versionNeutral, allowedMethods));
}
protected virtual HttpActionDescriptor SelectActionVersion(HttpControllerContext controllerContext, IReadOnlyList <HttpActionDescriptor> candidateActions)
{
Arg.NotNull(controllerContext, nameof(controllerContext));
Arg.NotNull(candidateActions, nameof(candidateActions));
if (candidateActions.Count == 0)
{
return(null);
}
var request = controllerContext.Request;
var requestedVersion = request.GetRequestedApiVersion();
var model = new Lazy <ApiVersionModel>(controllerContext.ControllerDescriptor.GetApiVersionModel);
var exceptionFactory = new HttpResponseExceptionFactory(request, model);
if (candidateActions.Count == 1)
{
var action = candidateActions[0];
var versions = action.GetApiVersions();
var matched = versions.Count == 0 || versions.Contains(requestedVersion);
return(matched ? action : null);
}
var implicitMatches = new List <HttpActionDescriptor>();
var explicitMatches = new List <HttpActionDescriptor>();
foreach (var action in candidateActions)
{
var versions = action.GetApiVersions();
if (versions.Count == 0)
{
implicitMatches.Add(action);
}
else if (versions.Contains(requestedVersion))
{
explicitMatches.Add(action);
}
}
switch (explicitMatches.Count)
{
case 0:
switch (implicitMatches.Count)
{
case 0:
break;
case 1:
return(implicitMatches[0]);
default:
throw CreateAmbiguousActionException(implicitMatches);
}
break;
case 1:
return(explicitMatches[0]);
default:
throw CreateAmbiguousActionException(explicitMatches);
}
return(null);
}
