public void Accept_RejectsActionMatchWithMissingParameter()
{
// Arrange
var action = new ActionDescriptor();
action.Parameters = new List<ParameterDescriptor>()
{
new ParameterDescriptor()
{
BindingInfo = new BindingInfo()
{
BindingSource = (new FromUriAttribute()).BindingSource,
},
Name = "id",
ParameterType = typeof(int),
},
};
var constraint = new OverloadActionConstraint();
var context = new ActionConstraintContext();
context.Candidates = new List<ActionSelectorCandidate>()
{
new ActionSelectorCandidate(action, new [] { constraint }),
};
context.CurrentCandidate = context.Candidates[0];
context.RouteContext = CreateRouteContext();
// Act & Assert
Assert.False(constraint.Accept(context));
}
public bool Accept(ActionConstraintContext context)
{
return string.Equals(
context.RouteContext.RouteData.Values["country"].ToString(),
_countryCode,
StringComparison.OrdinalIgnoreCase);
}
public bool Accept(ActionConstraintContext context)
{
int version;
if (int.TryParse(GetVersion(context.RouteContext.HttpContext.Request), out version))
{
return (_minVersion == null || _minVersion <= version) &&
(_maxVersion == null || _maxVersion >= version);
}
else
{
return false;
}
}
public bool Accept(ActionConstraintContext context)
{
var candidates = context.Candidates.Select(c => new
{
Action = c,
Parameters = GetOverloadableParameters(c),
});
// Combined route value keys and query string keys. These are the values available for overload selection.
var requestKeys = GetCombinedKeys(context.RouteContext);
// Group candidates by the highest number of keys, and then process them until we find an action
// with all parameters satisfied.
foreach (var group in candidates.GroupBy(c => c.Parameters?.Count ?? 0).OrderByDescending(g => g.Key))
{
var foundMatch = false;
foreach (var candidate in group)
{
var allFound = true;
if (candidate.Parameters != null)
{
foreach (var parameter in candidate.Parameters)
{
if (!requestKeys.Contains(parameter.Prefix))
{
if (candidate.Action.Action == context.CurrentCandidate.Action)
{
return false;
}
allFound = false;
break;
}
}
}
if (allFound)
{
foundMatch = true;
}
}
if (foundMatch)
{
return group.Any(c => c.Action.Action == context.CurrentCandidate.Action);
}
}
return false;
}
public bool Accept(ActionConstraintContext context)
{
//Initialize the context, this will be called a few times but the initialize logic
// only executes once. There might be a nicer way to do this but the RouteContext and
// other request scoped instances are not available yet.
_umbCtx.Initialize(context.RouteContext.RouteData);
if (_umbCtx.HasContent == false) return false;
//NOTE: This was for testing at some point!
//if (((ControllerActionDescriptor)context.CurrentCandidate.Action)
// .ControllerName == "TestSurface")
//{
// return true;
//}
return false;
}
public void Accept_AcceptsActionWithSatisfiedParameters()
{
// Arrange
var action = new ActionDescriptor();
action.Parameters = new List<ParameterDescriptor>()
{
new ParameterDescriptor()
{
BindingInfo = new BindingInfo()
{
BindingSource = (new FromUriAttribute()).BindingSource,
},
Name = "id",
ParameterType = typeof(int),
},
new ParameterDescriptor()
{
BindingInfo = new BindingInfo()
{
BindingSource = (new FromUriAttribute()).BindingSource,
},
Name = "quantity",
ParameterType = typeof(int),
},
};
var constraint = new OverloadActionConstraint();
var context = new ActionConstraintContext();
context.Candidates = new List<ActionSelectorCandidate>()
{
new ActionSelectorCandidate(action, new [] { constraint }),
};
context.CurrentCandidate = context.Candidates[0];
context.RouteContext = CreateRouteContext("?quantity=5", new { id = 17 });
// Act & Assert
Assert.True(constraint.Accept(context));
}
public bool Accept(ActionConstraintContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (_httpMethods.Count == 0)
{
return(true);
}
var request = context.RouteContext.HttpContext.Request;
var method = request.Method;
if (request.Headers.ContainsKey(OriginHeader))
{
// Update the http method if it is preflight request.
var accessControlRequestMethod = request.Headers[AccessControlRequestMethod];
if (string.Equals(
request.Method,
PreflightHttpMethod,
StringComparison.Ordinal) &&
!StringValues.IsNullOrEmpty(accessControlRequestMethod))
{
method = accessControlRequestMethod;
}
}
for (var i = 0; i < _httpMethods.Count; i++)
{
var supportedMethod = _httpMethods[i];
if (string.Equals(supportedMethod, method, StringComparison.Ordinal))
{
return(true);
}
}
return(false);
}
public bool Accept(ActionConstraintContext context)
{
if (context == null)
{
throw new ArgumentNullException(nameof(context));
}
if (_httpMethods.Count == 0)
{
return true;
}
var request = context.RouteContext.HttpContext.Request;
var method = request.Method;
if (request.Headers.ContainsKey(OriginHeader))
{
// Update the http method if it is preflight request.
var accessControlRequestMethod = request.Headers[AccessControlRequestMethod];
if (string.Equals(
request.Method,
PreflightHttpMethod,
StringComparison.OrdinalIgnoreCase) &&
!StringValues.IsNullOrEmpty(accessControlRequestMethod))
{
method = accessControlRequestMethod;
}
}
for (var i = 0; i < _httpMethods.Count; i++)
{
var supportedMethod = _httpMethods[i];
if (string.Equals(supportedMethod, method, StringComparison.OrdinalIgnoreCase))
{
return true;
}
}
return false;
}
private IReadOnlyList<ActionSelectorCandidate> EvaluateActionConstraints(
RouteContext context,
IReadOnlyList<ActionSelectorCandidate> candidates,
int? startingOrder)
{
// Find the next group of constraints to process. This will be the lowest value of
// order that is higher than startingOrder.
int? order = null;
// Perf: Avoid allocations
for (var i = 0; i < candidates.Count; i++)
{
var candidate = candidates[i];
if (candidate.Constraints != null)
{
for (var j = 0; j < candidate.Constraints.Count; j++)
{
var constraint = candidate.Constraints[j];
if ((startingOrder == null || constraint.Order > startingOrder) &&
(order == null || constraint.Order < order))
{
order = constraint.Order;
}
}
}
}
// If we don't find a 'next' then there's nothing left to do.
if (order == null)
{
return candidates;
}
// Since we have a constraint to process, bisect the set of actions into those with and without a
// constraint for the 'current order'.
var actionsWithConstraint = new List<ActionSelectorCandidate>();
var actionsWithoutConstraint = new List<ActionSelectorCandidate>();
var constraintContext = new ActionConstraintContext();
constraintContext.Candidates = candidates;
constraintContext.RouteContext = context;
// Perf: Avoid allocations
for (var i = 0; i < candidates.Count; i++)
{
var candidate = candidates[i];
var isMatch = true;
var foundMatchingConstraint = false;
if (candidate.Constraints != null)
{
constraintContext.CurrentCandidate = candidate;
for (var j = 0; j < candidate.Constraints.Count; j++)
{
var constraint = candidate.Constraints[j];
if (constraint.Order == order)
{
foundMatchingConstraint = true;
if (!constraint.Accept(constraintContext))
{
isMatch = false;
_logger.LogVerbose(
"Action '{ActionDisplayName}' with id '{ActionId}' did not match the " +
"constraint '{ActionConstraint}'",
candidate.Action.DisplayName,
candidate.Action.Id,
constraint);
break;
}
}
}
}
if (isMatch && foundMatchingConstraint)
{
actionsWithConstraint.Add(candidate);
}
else if (isMatch)
{
actionsWithoutConstraint.Add(candidate);
}
}
// If we have matches with constraints, those are 'better' so try to keep processing those
if (actionsWithConstraint.Count > 0)
{
var matches = EvaluateActionConstraints(context, actionsWithConstraint, order);
if (matches?.Count > 0)
{
return matches;
}
}
// If the set of matches with constraints can't work, then process the set without constraints.
if (actionsWithoutConstraint.Count == 0)
{
return null;
}
else
{
return EvaluateActionConstraints(context, actionsWithoutConstraint, order);
}
}
public bool Accept(ActionConstraintContext context)
{
return Pass;
}
private IReadOnlyList<ActionSelectorCandidate> EvaluateActionConstraints(
RouteContext context,
IReadOnlyList<ActionSelectorCandidate> candidates,
int? startingOrder)
{
// Find the next group of constraints to process. This will be the lowest value of
// order that is higher than startingOrder.
int? order = null;
foreach (var candidate in candidates)
{
if (candidate.Constraints != null)
{
foreach (var constraint in candidate.Constraints)
{
if ((startingOrder == null || constraint.Order > startingOrder) &&
(order == null || constraint.Order < order))
{
order = constraint.Order;
}
}
}
}
// If we don't find a 'next' then there's nothing left to do.
if (order == null)
{
return candidates;
}
// Since we have a constraint to process, bisect the set of actions into those with and without a
// constraint for the 'current order'.
var actionsWithConstraint = new List<ActionSelectorCandidate>();
var actionsWithoutConstraint = new List<ActionSelectorCandidate>();
var constraintContext = new ActionConstraintContext();
constraintContext.Candidates = candidates;
constraintContext.RouteContext = context;
foreach (var candidate in candidates)
{
var isMatch = true;
var foundMatchingConstraint = false;
if (candidate.Constraints != null)
{
constraintContext.CurrentCandidate = candidate;
foreach (var constraint in candidate.Constraints)
{
if (constraint.Order == order)
{
foundMatchingConstraint = true;
if (!constraint.Accept(constraintContext))
{
isMatch = false;
break;
}
}
}
}
if (isMatch && foundMatchingConstraint)
{
actionsWithConstraint.Add(candidate);
}
else if (isMatch)
{
actionsWithoutConstraint.Add(candidate);
}
}
// If we have matches with constraints, those are 'better' so try to keep processing those
if (actionsWithConstraint.Count > 0)
{
var matches = EvaluateActionConstraints(context, actionsWithConstraint, order);
if (matches?.Count > 0)
{
return matches;
}
}
// If the set of matches with constraints can't work, then process the set without constraints.
if (actionsWithoutConstraint.Count == 0)
{
return null;
}
else
{
return EvaluateActionConstraints(context, actionsWithoutConstraint, order);
}
}
public void Accept_AcceptsAction_WithFewerParameters_WhenOtherIsNotOverloaded()
{
// Arrange
var action1 = new ActionDescriptor();
action1.Parameters = new List<ParameterDescriptor>()
{
new ParameterDescriptor()
{
BindingInfo = new BindingInfo()
{
BindingSource = (new FromUriAttribute()).BindingSource,
},
Name = "id",
ParameterType = typeof(int),
},
};
var action2 = new ActionDescriptor();
action2.Parameters = new List<ParameterDescriptor>()
{
new ParameterDescriptor()
{
BindingInfo = new BindingInfo()
{
BindingSource = (new FromUriAttribute()).BindingSource,
},
Name = "id",
ParameterType = typeof(int),
},
new ParameterDescriptor()
{
BindingInfo = new BindingInfo()
{
BindingSource = (new FromUriAttribute()).BindingSource,
},
Name = "quantity",
ParameterType = typeof(int),
},
};
var optionalParameters = new HashSet<string>();
optionalParameters.Add("quantity");
action2.Properties.Add("OptionalParameters", optionalParameters);
var constraint = new OverloadActionConstraint();
var context = new ActionConstraintContext();
context.Candidates = new List<ActionSelectorCandidate>()
{
new ActionSelectorCandidate(action1, new [] { constraint }),
new ActionSelectorCandidate(action2, new IActionConstraint[] { }),
};
context.CurrentCandidate = context.Candidates[0];
context.RouteContext = CreateRouteContext("?quantity=5", new { id = 17 });
// Act & Assert
Assert.True(constraint.Accept(context));
}
public bool Accept(ActionConstraintContext context)
{
return false;
}
/// <inheritdoc />
public bool Accept(ActionConstraintContext context)
{
return(IsValidForRequest(context.RouteContext, context.CurrentCandidate.Action));
}
public bool Accept(ActionConstraintContext context)
{
return _requestId == _requestIdService.RequestId;
}
/// <inheritdoc />
public bool Accept(ActionConstraintContext context)
{
return IsValidForRequest(context.RouteContext, context.CurrentCandidate.Action);
}
