protected virtual UrlSegment GetSegment(string segment, List <ActionParameter> actionParameters)
{
var parameter = actionParameters.FirstOrDefault(p => p.Name.EqualsUncase(segment));
if (parameter == null)
{
return(new UrlSegment(segment));
}
var isWildcard = parameter.HasAttributes <WildcardAttribute, ParamArrayAttribute>();
var urlParameter = new UrlParameter(parameter, isWildcard);
return(new UrlSegment(urlParameter, _constraintBuilder.Build(urlParameter)));
}
public List <string> Build(UrlParameter parameter)
{
var constraints = new List <string>();
if (parameter.TypeDescriptor.Type == typeof(string))
{
if (parameter.HasAttribute <AlphaAttribute>())
{
constraints.Add("alpha");
}
if (parameter.HasAttribute <LengthAttribute>())
{
var length = parameter.GetAttribute <LengthAttribute>();
if (length.Length.HasValue)
{
constraints.Add($"length({length.Length})");
}
else if (length.Min.HasValue && length.Max.HasValue)
{
constraints.Add($"length({length.Min},{length.Max})");
}
else if (length.Min.HasValue)
{
constraints.Add($"minlength({length.Min})");
}
else if (length.Max.HasValue)
{
constraints.Add($"maxlength({length.Max})");
}
}
}
if ((parameter.TypeDescriptor.Type == typeof(int) ||
parameter.TypeDescriptor.Type == typeof(long)) &&
parameter.HasAttribute <RangeAttribute>())
{
var range = parameter.GetAttribute <RangeAttribute>();
if (range.Min.HasValue && range.Max.HasValue)
{
constraints.Add($"range({range.Min},{range.Max})");
}
else if (range.Min.HasValue)
{
constraints.Add($"min({range.Min})");
}
else if (range.Max.HasValue)
{
constraints.Add($"max({range.Max})");
}
}
if (parameter.HasAttribute <RegexAttribute>())
{
var regex = parameter.GetAttribute <RegexAttribute>()?.Regex;
if (regex.IsNotNullOrEmpty())
{
constraints.Add($"regex({regex})");
}
}
if (parameter.HasAttribute <MatchTypeAttribute>() ||
_configuration.AutomaticallyConstrainUrlParameterByType)
{
if (parameter.TypeDescriptor.Type == typeof(bool))
{
constraints.Add("bool");
}
else if (parameter.TypeDescriptor.Type == typeof(DateTime))
{
constraints.Add("datetime");
}
else if (parameter.TypeDescriptor.Type == typeof(decimal))
{
constraints.Add("decimal");
}
else if (parameter.TypeDescriptor.Type == typeof(double))
{
constraints.Add("double");
}
else if (parameter.TypeDescriptor.Type == typeof(float))
{
constraints.Add("float");
}
else if (parameter.TypeDescriptor.Type == typeof(Guid))
{
constraints.Add("guid");
}
else if (parameter.TypeDescriptor.Type == typeof(int))
{
constraints.Add("int");
}
else if (parameter.TypeDescriptor.Type == typeof(long))
{
constraints.Add("long");
}
}
return(constraints);
}
public UrlSegment(UrlParameter parameter, List <string> constraints)
{
Parameter = parameter;
Constraints = constraints;
IsParameter = true;
}