private static ReflectedActionDescriptor CreateActionDescriptor(
ReflectedActionModel action,
ReflectedAttributeRouteModel controllerAttributeRoute,
ControllerDescriptor controllerDescriptor)
{
var parameterDescriptors = new List <ParameterDescriptor>();
foreach (var parameter in action.Parameters)
{
var isFromBody = parameter.Attributes.OfType <FromBodyAttribute>().Any();
var paramDescriptor = new ParameterDescriptor()
{
Name = parameter.ParameterName,
IsOptional = parameter.IsOptional
};
if (isFromBody)
{
paramDescriptor.BodyParameterInfo = new BodyParameterInfo(
parameter.ParameterInfo.ParameterType);
}
else
{
paramDescriptor.ParameterBindingInfo = new ParameterBindingInfo(
parameter.ParameterName,
parameter.ParameterInfo.ParameterType);
}
parameterDescriptors.Add(paramDescriptor);
}
var attributeRouteInfo = CreateAttributeRouteInfo(
action.AttributeRouteModel,
controllerAttributeRoute);
var actionDescriptor = new ReflectedActionDescriptor()
{
Name = action.ActionName,
ControllerDescriptor = controllerDescriptor,
MethodInfo = action.ActionMethod,
Parameters = parameterDescriptors,
RouteConstraints = new List <RouteDataActionConstraint>(),
AttributeRouteInfo = attributeRouteInfo
};
actionDescriptor.DisplayName = string.Format(
"{0}.{1}",
action.ActionMethod.DeclaringType.FullName,
action.ActionMethod.Name);
return(actionDescriptor);
}
private static IList <ReflectedActionDescriptor> CreateActionDescriptors(
ReflectedActionModel action,
ReflectedControllerModel controller,
ControllerDescriptor controllerDescriptor)
{
var actionDescriptors = new List <ReflectedActionDescriptor>();
// We check the action to see if the template allows combination behavior
// (It doesn't start with / or ~/) so that in the case where we have multiple
// [Route] attributes on the controller we don't end up creating multiple
// attribute identical attribute routes.
if (controller.AttributeRoutes != null &&
controller.AttributeRoutes.Count > 0 &&
(action.AttributeRouteModel == null ||
!action.AttributeRouteModel.IsAbsoluteTemplate))
{
foreach (var controllerAttributeRoute in controller.AttributeRoutes)
{
var actionDescriptor = CreateActionDescriptor(
action,
controllerAttributeRoute,
controllerDescriptor);
actionDescriptors.Add(actionDescriptor);
}
}
else
{
actionDescriptors.Add(CreateActionDescriptor(
action,
controllerAttributeRoute: null,
controllerDescriptor: controllerDescriptor));
}
return(actionDescriptors);
}
public List<ReflectedActionDescriptor> Build(ReflectedApplicationModel model)
{
var actions = new List<ReflectedActionDescriptor>();
var routeGroupsByTemplate = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
var removalConstraints = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
var routeTemplateErrors = new List<string>();
foreach (var controller in model.Controllers)
{
var controllerDescriptor = new ControllerDescriptor(controller.ControllerType);
foreach (var action in controller.Actions)
{
var parameterDescriptors = new List<ParameterDescriptor>();
foreach (var parameter in action.Parameters)
{
var isFromBody = parameter.Attributes.OfType<FromBodyAttribute>().Any();
parameterDescriptors.Add(new ParameterDescriptor()
{
Name = parameter.ParameterName,
IsOptional = parameter.IsOptional,
ParameterBindingInfo = isFromBody
? null
: new ParameterBindingInfo(
parameter.ParameterName,
parameter.ParameterInfo.ParameterType),
BodyParameterInfo = isFromBody
? new BodyParameterInfo(parameter.ParameterInfo.ParameterType)
: null
});
}
var actionDescriptor = new ReflectedActionDescriptor()
{
Name = action.ActionName,
ControllerDescriptor = controllerDescriptor,
MethodInfo = action.ActionMethod,
Parameters = parameterDescriptors,
RouteConstraints = new List<RouteDataActionConstraint>(),
};
actionDescriptor.DisplayName = string.Format(
"{0}.{1}",
action.ActionMethod.DeclaringType.FullName,
action.ActionMethod.Name);
var httpMethods = action.HttpMethods;
if (httpMethods != null && httpMethods.Count > 0)
{
actionDescriptor.MethodConstraints = new List<HttpMethodConstraint>()
{
new HttpMethodConstraint(httpMethods)
};
}
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"controller",
controller.ControllerName));
if (action.IsActionNameMatchRequired)
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"action",
action.ActionName));
}
else
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"action",
RouteKeyHandling.DenyKey));
}
foreach (var constraintAttribute in controller.RouteConstraints)
{
if (constraintAttribute.BlockNonAttributedActions)
{
removalConstraints.Add(constraintAttribute.RouteKey);
}
// Skip duplicates
if (!HasConstraint(actionDescriptor.RouteConstraints, constraintAttribute.RouteKey))
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
constraintAttribute.RouteKey,
constraintAttribute.RouteValue));
}
}
var templateText = AttributeRouteTemplate.Combine(
controller.RouteTemplate,
action.RouteTemplate);
if (templateText != null)
{
// An attribute routed action will ignore conventional routed constraints. We still
// want to provide these values as ambient values.
foreach (var constraint in actionDescriptor.RouteConstraints)
{
actionDescriptor.RouteValueDefaults.Add(constraint.RouteKey, constraint.RouteValue);
}
// Replaces tokens like [controller]/[action] in the route template with the actual values
// for this action.
try
{
templateText = AttributeRouteTemplate.ReplaceTokens(
templateText,
actionDescriptor.RouteValueDefaults);
}
catch (InvalidOperationException ex)
{
var message = Resources.FormatAttributeRoute_IndividualErrorMessage(
actionDescriptor.DisplayName,
Environment.NewLine,
ex.Message);
routeTemplateErrors.Add(message);
}
actionDescriptor.AttributeRouteTemplate = templateText;
// An attribute routed action is matched by its 'route group' which identifies all equivalent
// actions.
string routeGroup;
if (!routeGroupsByTemplate.TryGetValue(templateText, out routeGroup))
{
routeGroup = GetRouteGroup(templateText);
routeGroupsByTemplate.Add(templateText, routeGroup);
}
var routeConstraints = new List<RouteDataActionConstraint>();
routeConstraints.Add(new RouteDataActionConstraint(
AttributeRouting.RouteGroupKey,
routeGroup));
actionDescriptor.RouteConstraints = routeConstraints;
}
actionDescriptor.FilterDescriptors =
action.Filters.Select(f => new FilterDescriptor(f, FilterScope.Action))
.Concat(controller.Filters.Select(f => new FilterDescriptor(f, FilterScope.Controller)))
.Concat(model.Filters.Select(f => new FilterDescriptor(f, FilterScope.Global)))
.OrderBy(d => d, FilterDescriptorOrderComparer.Comparer)
.ToList();
actions.Add(actionDescriptor);
}
}
foreach (var actionDescriptor in actions)
{
foreach (var key in removalConstraints)
{
if (actionDescriptor.AttributeRouteTemplate == null)
{
// Any any attribute routes are in use, then non-attribute-routed ADs can't be selected
// when a route group returned by the route.
if (routeGroupsByTemplate.Any())
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
AttributeRouting.RouteGroupKey,
RouteKeyHandling.DenyKey));
}
if (!HasConstraint(actionDescriptor.RouteConstraints, key))
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
key,
RouteKeyHandling.DenyKey));
}
}
else
{
// We still want to add a 'null' for any constraint with DenyKey so that link generation
// works properly.
//
// Consider an action like { area = "", controller = "Home", action = "Index" }. Even if
// it's attribute routed, it needs to know that area must be null to generate a link.
if (!actionDescriptor.RouteValueDefaults.ContainsKey(key))
{
actionDescriptor.RouteValueDefaults.Add(key, null);
}
}
}
}
if (routeTemplateErrors.Any())
{
var message = Resources.FormatAttributeRoute_AggregateErrorMessage(
Environment.NewLine,
string.Join(Environment.NewLine + Environment.NewLine, routeTemplateErrors));
throw new InvalidOperationException(message);
}
return actions;
}
public List <ReflectedActionDescriptor> Build(ReflectedApplicationModel model)
{
var actions = new List <ReflectedActionDescriptor>();
var routeGroupsByTemplate = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
var removalConstraints = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
var routeTemplateErrors = new List <string>();
foreach (var controller in model.Controllers)
{
var controllerDescriptor = new ControllerDescriptor(controller.ControllerType);
foreach (var action in controller.Actions)
{
var parameterDescriptors = new List <ParameterDescriptor>();
foreach (var parameter in action.Parameters)
{
var isFromBody = parameter.Attributes.OfType <FromBodyAttribute>().Any();
parameterDescriptors.Add(new ParameterDescriptor()
{
Name = parameter.ParameterName,
IsOptional = parameter.IsOptional,
ParameterBindingInfo = isFromBody
? null
: new ParameterBindingInfo(
parameter.ParameterName,
parameter.ParameterInfo.ParameterType),
BodyParameterInfo = isFromBody
? new BodyParameterInfo(parameter.ParameterInfo.ParameterType)
: null
});
}
var actionDescriptor = new ReflectedActionDescriptor()
{
Name = action.ActionName,
ControllerDescriptor = controllerDescriptor,
MethodInfo = action.ActionMethod,
Parameters = parameterDescriptors,
RouteConstraints = new List <RouteDataActionConstraint>(),
};
actionDescriptor.DisplayName = string.Format(
"{0}.{1}",
action.ActionMethod.DeclaringType.FullName,
action.ActionMethod.Name);
var httpMethods = action.HttpMethods;
if (httpMethods != null && httpMethods.Count > 0)
{
actionDescriptor.MethodConstraints = new List <HttpMethodConstraint>()
{
new HttpMethodConstraint(httpMethods)
};
}
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"controller",
controller.ControllerName));
if (action.IsActionNameMatchRequired)
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"action",
action.ActionName));
}
else
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
"action",
RouteKeyHandling.DenyKey));
}
foreach (var constraintAttribute in controller.RouteConstraints)
{
if (constraintAttribute.BlockNonAttributedActions)
{
removalConstraints.Add(constraintAttribute.RouteKey);
}
// Skip duplicates
if (!HasConstraint(actionDescriptor.RouteConstraints, constraintAttribute.RouteKey))
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
constraintAttribute.RouteKey,
constraintAttribute.RouteValue));
}
}
var templateText = AttributeRouteTemplate.Combine(
controller.RouteTemplate,
action.RouteTemplate);
if (templateText != null)
{
// An attribute routed action will ignore conventional routed constraints. We still
// want to provide these values as ambient values.
foreach (var constraint in actionDescriptor.RouteConstraints)
{
actionDescriptor.RouteValueDefaults.Add(constraint.RouteKey, constraint.RouteValue);
}
// Replaces tokens like [controller]/[action] in the route template with the actual values
// for this action.
try
{
templateText = AttributeRouteTemplate.ReplaceTokens(
templateText,
actionDescriptor.RouteValueDefaults);
}
catch (InvalidOperationException ex)
{
var message = Resources.FormatAttributeRoute_IndividualErrorMessage(
actionDescriptor.DisplayName,
Environment.NewLine,
ex.Message);
routeTemplateErrors.Add(message);
}
actionDescriptor.AttributeRouteTemplate = templateText;
// An attribute routed action is matched by its 'route group' which identifies all equivalent
// actions.
string routeGroup;
if (!routeGroupsByTemplate.TryGetValue(templateText, out routeGroup))
{
routeGroup = GetRouteGroup(templateText);
routeGroupsByTemplate.Add(templateText, routeGroup);
}
var routeConstraints = new List <RouteDataActionConstraint>();
routeConstraints.Add(new RouteDataActionConstraint(
AttributeRouting.RouteGroupKey,
routeGroup));
actionDescriptor.RouteConstraints = routeConstraints;
}
actionDescriptor.FilterDescriptors =
action.Filters.Select(f => new FilterDescriptor(f, FilterScope.Action))
.Concat(controller.Filters.Select(f => new FilterDescriptor(f, FilterScope.Controller)))
.Concat(model.Filters.Select(f => new FilterDescriptor(f, FilterScope.Global)))
.OrderBy(d => d, FilterDescriptorOrderComparer.Comparer)
.ToList();
actions.Add(actionDescriptor);
}
}
foreach (var actionDescriptor in actions)
{
foreach (var key in removalConstraints)
{
if (actionDescriptor.AttributeRouteTemplate == null)
{
// Any any attribute routes are in use, then non-attribute-routed ADs can't be selected
// when a route group returned by the route.
if (routeGroupsByTemplate.Any())
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
AttributeRouting.RouteGroupKey,
RouteKeyHandling.DenyKey));
}
if (!HasConstraint(actionDescriptor.RouteConstraints, key))
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
key,
RouteKeyHandling.DenyKey));
}
}
else
{
// We still want to add a 'null' for any constraint with DenyKey so that link generation
// works properly.
//
// Consider an action like { area = "", controller = "Home", action = "Index" }. Even if
// it's attribute routed, it needs to know that area must be null to generate a link.
if (!actionDescriptor.RouteValueDefaults.ContainsKey(key))
{
actionDescriptor.RouteValueDefaults.Add(key, null);
}
}
}
}
if (routeTemplateErrors.Any())
{
var message = Resources.FormatAttributeRoute_AggregateErrorMessage(
Environment.NewLine,
string.Join(Environment.NewLine + Environment.NewLine, routeTemplateErrors));
throw new InvalidOperationException(message);
}
return(actions);
}
public List <ReflectedActionDescriptor> Build(ReflectedApplicationModel model)
{
var actions = new List <ReflectedActionDescriptor>();
var hasAttributeRoutes = false;
var removalConstraints = new HashSet <string>(StringComparer.OrdinalIgnoreCase);
var methodInfoMap = new MethodToActionMap();
var routeTemplateErrors = new List <string>();
var attributeRoutingConfigurationErrors = new Dictionary <MethodInfo, string>();
foreach (var controller in model.Controllers)
{
var controllerDescriptor = new ControllerDescriptor(controller.ControllerType);
foreach (var action in controller.Actions)
{
// Controllers with multiple [Route] attributes (or user defined implementation of
// IRouteTemplateProvider) will generate one action descriptor per IRouteTemplateProvider
// instance.
// Actions with multiple [Http*] attributes or other (IRouteTemplateProvider implementations
// have already been identified as different actions during action discovery.
var actionDescriptors = CreateActionDescriptors(action, controller, controllerDescriptor);
foreach (var actionDescriptor in actionDescriptors)
{
AddActionFilters(actionDescriptor, action.Filters, controller.Filters, model.Filters);
AddActionConstraints(actionDescriptor, action, controller);
AddControllerRouteConstraints(
actionDescriptor,
controller.RouteConstraints,
removalConstraints);
if (IsAttributeRoutedAction(actionDescriptor))
{
hasAttributeRoutes = true;
// An attribute routed action will ignore conventional routed constraints. We still
// want to provide these values as ambient values for link generation.
AddConstraintsAsDefaultRouteValues(actionDescriptor);
// Replaces tokens like [controller]/[action] in the route template with the actual values
// for this action.
ReplaceAttributeRouteTokens(actionDescriptor, routeTemplateErrors);
// Attribute routed actions will ignore conventional routed constraints. Instead they have
// a single route constraint "RouteGroup" associated with it.
ReplaceRouteConstraints(actionDescriptor);
}
}
methodInfoMap.AddToMethodInfo(action, actionDescriptors);
actions.AddRange(actionDescriptors);
}
}
var actionsByRouteName = new Dictionary <string, IList <ActionDescriptor> >(
StringComparer.OrdinalIgnoreCase);
// Keeps track of all the methods that we've validated to avoid visiting each action group
// more than once.
var validatedMethods = new HashSet <MethodInfo>();
foreach (var actionDescriptor in actions)
{
if (!validatedMethods.Contains(actionDescriptor.MethodInfo))
{
ValidateActionGroupConfiguration(
methodInfoMap,
actionDescriptor,
attributeRoutingConfigurationErrors);
validatedMethods.Add(actionDescriptor.MethodInfo);
}
if (!IsAttributeRoutedAction(actionDescriptor))
{
// Any attribute routes are in use, then non-attribute-routed action descriptors can't be
// selected when a route group returned by the route.
if (hasAttributeRoutes)
{
actionDescriptor.RouteConstraints.Add(new RouteDataActionConstraint(
AttributeRouting.RouteGroupKey,
RouteKeyHandling.DenyKey));
}
// Add a route constraint with DenyKey for each constraint in the set to all the
// actions that don't have that constraint. For example, if a controller defines
// an area constraint, all actions that don't belong to an area must have a route
// constraint that prevents them from matching an incomming request.
AddRemovalConstraints(actionDescriptor, removalConstraints);
}
else
{
var attributeRouteInfo = actionDescriptor.AttributeRouteInfo;
if (attributeRouteInfo.Name != null)
{
// Build a map of attribute route name to action descriptors to ensure that all
// attribute routes with a given name have the same template.
AddActionToNamedGroup(actionsByRouteName, attributeRouteInfo.Name, actionDescriptor);
}
// We still want to add a 'null' for any constraint with DenyKey so that link generation
// works properly.
//
// Consider an action like { area = "", controller = "Home", action = "Index" }. Even if
// it's attribute routed, it needs to know that area must be null to generate a link.
foreach (var key in removalConstraints)
{
if (!actionDescriptor.RouteValueDefaults.ContainsKey(key))
{
actionDescriptor.RouteValueDefaults.Add(key, null);
}
}
}
}
if (attributeRoutingConfigurationErrors.Any())
{
var message = CreateAttributeRoutingAggregateErrorMessage(
attributeRoutingConfigurationErrors.Values);
throw new InvalidOperationException(message);
}
var namedRoutedErrors = ValidateNamedAttributeRoutedActions(actionsByRouteName);
if (namedRoutedErrors.Any())
{
var message = CreateAttributeRoutingAggregateErrorMessage(namedRoutedErrors);
throw new InvalidOperationException(message);
}
if (routeTemplateErrors.Any())
{
var message = CreateAttributeRoutingAggregateErrorMessage(routeTemplateErrors);
throw new InvalidOperationException(message);
}
return(actions);
}
