using Newtonsoft.Json; using Newtonsoft.Json.Converters; using Newtonsoft.Json.Serialization; using NJsonSchema.Annotations; using NJsonSchema.Infrastructure; using System; using System.Collections; using System.Collections.Generic; using System.Linq; namespace NJsonSchema.Generation { public class DefaultReflectionService : IReflectionService { public virtual JsonTypeDescription GetDescription(Type type, IEnumerable<Attribute> parentAttributes, JsonSchemaGeneratorSettings settings) { bool isNullable = IsNullable(type, parentAttributes, settings); JsonSchemaTypeAttribute jsonSchemaTypeAttribute = type.GetTypeInfo().GetCustomAttribute<JsonSchemaTypeAttribute>() ?? ((parentAttributes != null) ? parentAttributes.OfType<JsonSchemaTypeAttribute>().SingleOrDefault() : null); if (jsonSchemaTypeAttribute != null) { type = jsonSchemaTypeAttribute.Type; if (jsonSchemaTypeAttribute.IsNullableRaw.HasValue) isNullable = jsonSchemaTypeAttribute.IsNullableRaw.Value; } JsonSchemaAttribute jsonSchemaAttribute = type.GetTypeInfo().GetCustomAttribute<JsonSchemaAttribute>() ?? ((parentAttributes != null) ? parentAttributes.OfType<JsonSchemaAttribute>().SingleOrDefault() : null); if (jsonSchemaAttribute != null) { JsonObjectType jsonType = (jsonSchemaAttribute.Type != 0) ? jsonSchemaAttribute.Type : JsonObjectType.Object; string format = (!string.IsNullOrEmpty(jsonSchemaAttribute.Format)) ? jsonSchemaAttribute.Format : null; return JsonTypeDescription.Create(type, jsonType, isNullable, format); } if (type.GetTypeInfo().IsEnum) { bool flag = IsStringEnum(type, parentAttributes, settings); return JsonTypeDescription.CreateForEnumeration(type, flag ? JsonObjectType.String : JsonObjectType.Integer, false); } if (type == typeof(short) || type == typeof(uint) || type == typeof(ushort)) return JsonTypeDescription.Create(type, JsonObjectType.Integer, false, null); if (type == typeof(int)) return JsonTypeDescription.Create(type, JsonObjectType.Integer, false, "int32"); if (type == typeof(long) || type == typeof(ulong)) return JsonTypeDescription.Create(type, JsonObjectType.Integer, false, "int64"); if (type == typeof(double) || type == typeof(float)) return JsonTypeDescription.Create(type, JsonObjectType.Number, false, "double"); if (type == typeof(decimal)) return JsonTypeDescription.Create(type, JsonObjectType.Number, false, "decimal"); if (type == typeof(bool)) return JsonTypeDescription.Create(type, JsonObjectType.Boolean, false, null); if (type == typeof(string) || type == typeof(Type)) return JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, null); if (type == typeof(char)) return JsonTypeDescription.Create(type, JsonObjectType.String, false, null); if (type == typeof(Guid)) return JsonTypeDescription.Create(type, JsonObjectType.String, false, "guid"); if (type == typeof(DateTime) || type == typeof(DateTimeOffset) || type.FullName == "NodaTime.OffsetDateTime" || type.FullName == "NodaTime.LocalDateTime" || type.FullName == "NodaTime.ZonedDateTime") return JsonTypeDescription.Create(type, JsonObjectType.String, false, "date-time"); if (type == typeof(TimeSpan) || type.FullName == "NodaTime.Duration") return JsonTypeDescription.Create(type, JsonObjectType.String, false, "time-span"); if (type.FullName == "NodaTime.LocalDate") return JsonTypeDescription.Create(type, JsonObjectType.String, false, "date"); if (type.FullName == "NodaTime.LocalTime") return JsonTypeDescription.Create(type, JsonObjectType.String, false, "time"); if (type == typeof(Uri)) return JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, "uri"); if (type == typeof(byte)) return JsonTypeDescription.Create(type, JsonObjectType.Integer, false, "byte"); if (type == typeof(byte[])) return JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, "byte"); if (type.IsAssignableTo("JArray", TypeNameStyle.Name)) return JsonTypeDescription.Create(type, JsonObjectType.Array, isNullable, null); if (type.IsAssignableTo("JToken", TypeNameStyle.Name) || type.FullName == "System.Dynamic.ExpandoObject" || type == typeof(object)) return JsonTypeDescription.Create(type, JsonObjectType.None, isNullable, null); if (IsFileType(type, parentAttributes)) return JsonTypeDescription.Create(type, JsonObjectType.File, isNullable, null); JsonContract jsonContract = settings.ResolveContract(type); if (IsDictionaryType(type, parentAttributes) && jsonContract is JsonDictionaryContract) return JsonTypeDescription.CreateForDictionary(type, JsonObjectType.Object, isNullable); if (IsArrayType(type, parentAttributes) && jsonContract is JsonArrayContract) return JsonTypeDescription.Create(type, JsonObjectType.Array, isNullable, null); if (type.Name == "Nullable`1") { JsonTypeDescription description = GetDescription(type.GetGenericArguments()[0], (parentAttributes != null) ? (from a in parentAttributes where !(a is JsonSchemaTypeAttribute) select a) : null, settings); description.IsNullable = true; return description; } if (jsonContract is JsonStringContract) return JsonTypeDescription.Create(type, JsonObjectType.String, isNullable, null); return JsonTypeDescription.Create(type, JsonObjectType.Object, isNullable, null); } public virtual bool IsNullable(Type type, IEnumerable<Attribute> parentAttributes, JsonSchemaGeneratorSettings settings) { JsonPropertyAttribute jsonPropertyAttribute = (parentAttributes != null) ? parentAttributes.OfType<JsonPropertyAttribute>().SingleOrDefault() : null; if (jsonPropertyAttribute != null && jsonPropertyAttribute.Required == Required.DisallowNull) return false; if (parentAttributes.TryGetIfAssignableTo("NotNullAttribute", TypeNameStyle.Name) != null) return false; if (parentAttributes.TryGetIfAssignableTo("CanBeNullAttribute", TypeNameStyle.Name) != null) return true; if (type.Name == "Nullable`1") return true; if (!(type != typeof(string)) || !type.GetTypeInfo().IsValueType) return settings.DefaultReferenceTypeNullHandling == ReferenceTypeNullHandling.Null; return false; } protected virtual bool IsFileType(Type type, IEnumerable<Attribute> parentAttributes) { if (!(type.Name == "IFormFile") && !type.IsAssignableTo("HttpPostedFile", TypeNameStyle.Name) && !type.IsAssignableTo("HttpPostedFileBase", TypeNameStyle.Name)) return type.GetTypeInfo().GetInterfaces().Any((Type i) => i.Name == "IFormFile"); return true; } protected virtual bool IsArrayType(Type type, IEnumerable<Attribute> parentAttributes) { if (IsDictionaryType(type, parentAttributes)) return false; if (type.Name == "ObservableCollection`1") return true; if (!type.IsArray) { if (Enumerable.Contains(type.GetTypeInfo().GetInterfaces(), typeof(IEnumerable))) { if (!(type.GetTypeInfo().BaseType == (Type)null)) return !Enumerable.Contains(type.GetTypeInfo().BaseType.GetTypeInfo().GetInterfaces(), typeof(IEnumerable)); return true; } return false; } return true; } protected virtual bool IsDictionaryType(Type type, IEnumerable<Attribute> parentAttributes) { if (type.Name == "IDictionary`2" || type.Name == "IReadOnlyDictionary`2") return true; if (Enumerable.Contains(type.GetTypeInfo().GetInterfaces(), typeof(IDictionary))) { if (!(type.GetTypeInfo().BaseType == (Type)null)) return !Enumerable.Contains(type.GetTypeInfo().BaseType.GetTypeInfo().GetInterfaces(), typeof(IDictionary)); return true; } return false; } private bool IsStringEnum(Type type, IEnumerable<Attribute> parentAttributes, JsonSchemaGeneratorSettings settings) { bool num = settings.ActualSerializerSettings.Converters.OfType<StringEnumConverter>().Any(); bool flag = HasStringEnumConverter(ReflectionExtensions.GetCustomAttributes(type.GetTypeInfo(), true)); bool flag2 = parentAttributes != null && HasStringEnumConverter(parentAttributes); return num | flag | flag2; } private bool HasStringEnumConverter(IEnumerable<Attribute> attributes) { if (attributes == null) return false; dynamic val = (attributes != null) ? attributes.FirstOrDefault((Attribute a) => a.GetType().Name == "JsonConverterAttribute") : null; if (ReflectionExtensions.HasProperty(val, "ConverterType")) return ((Type)val.ConverterType).IsAssignableTo("StringEnumConverter", TypeNameStyle.Name); return false; } } }