private void SerializeISerializable(JsonWriter writer, ISerializable value, JsonISerializableContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { if (!JsonTypeReflector.FullyTrusted) { string message = @"Type '{0}' implements ISerializable but cannot be serialized using the ISerializable interface because the current application is not fully trusted and ISerializable can expose secure data." + Environment.NewLine + @"To fix this error either change the environment to be fully trusted, change the application to not deserialize the type, add JsonObjectAttribute to the type or change the JsonSerializer setting ContractResolver to use a new DefaultContractResolver with IgnoreSerializableInterface set to true." + Environment.NewLine; message = message.FormatWith(CultureInfo.InvariantCulture, value.GetType()); throw JsonSerializationException.Create(null, writer.ContainerPath, message, null); } OnSerializing(writer, contract, value); _serializeStack.Add(value); WriteObjectStart(writer, value, contract, member, collectionContract, containerProperty); SerializationInfo serializationInfo = new SerializationInfo(contract.UnderlyingType, new FormatterConverter()); value.GetObjectData(serializationInfo, Serializer._context); foreach (SerializationEntry serializationEntry in serializationInfo) { JsonContract valueContract = GetContractSafe(serializationEntry.Value); if (ShouldWriteReference(serializationEntry.Value, null, valueContract, contract, member)) { writer.WritePropertyName(serializationEntry.Name); WriteReference(writer, serializationEntry.Value); } else if (CheckForCircularReference(writer, serializationEntry.Value, null, valueContract, contract, member)) { writer.WritePropertyName(serializationEntry.Name); SerializeValue(writer, serializationEntry.Value, valueContract, null, contract, member); } } writer.WriteEndObject(); _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, value); }
private void SerializeMultidimensionalArray(JsonWriter writer, Array values, JsonArrayContract contract, JsonProperty member, int initialDepth, int[] indices) { int dimension = indices.Length; int[] newIndices = new int[dimension + 1]; for (int i = 0; i < dimension; i++) { newIndices[i] = indices[i]; } writer.WriteStartArray(); for (int i = values.GetLowerBound(dimension); i <= values.GetUpperBound(dimension); i++) { newIndices[dimension] = i; bool isTopLevel = (newIndices.Length == values.Rank); if (isTopLevel) { object value = values.GetValue(newIndices); try { JsonContract valueContract = contract.FinalItemContract ?? GetContractSafe(value); if (ShouldWriteReference(value, null, valueContract, contract, member)) { WriteReference(writer, value); } else { if (CheckForCircularReference(writer, value, null, valueContract, contract, member)) { SerializeValue(writer, value, valueContract, null, contract, member); } } } catch (Exception ex) { if (IsErrorHandled(values, contract, i, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth + 1); } else { throw; } } } else { SerializeMultidimensionalArray(writer, values, contract, member, initialDepth + 1, newIndices); } } writer.WriteEndArray(); }
private bool WriteStartArray(JsonWriter writer, object values, JsonArrayContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty) { bool isReference = ResolveIsReference(contract, member, containerContract, containerProperty) ?? HasFlag(Serializer._preserveReferencesHandling, PreserveReferencesHandling.Arrays); // don't make readonly fields that aren't creator parameters the referenced value because they can't be deserialized to isReference = (isReference && (member == null || member.Writable || HasCreatorParameter(containerContract, member))); bool includeTypeDetails = ShouldWriteType(TypeNameHandling.Arrays, contract, member, containerContract, containerProperty); bool writeMetadataObject = isReference || includeTypeDetails; if (writeMetadataObject) { writer.WriteStartObject(); if (isReference) { WriteReferenceIdProperty(writer, contract.UnderlyingType, values); } if (includeTypeDetails) { WriteTypeProperty(writer, values.GetType()); } writer.WritePropertyName(JsonTypeReflector.ArrayValuesPropertyName, false); } if (contract.ItemContract == null) { contract.ItemContract = Serializer._contractResolver.ResolveContract(contract.CollectionItemType ?? typeof(object)); } return(writeMetadataObject); }
private void SerializeList(JsonWriter writer, IEnumerable values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { object underlyingList = values is IWrappedCollection wrappedCollection ? wrappedCollection.UnderlyingCollection : values; OnSerializing(writer, contract, underlyingList); _serializeStack.Add(underlyingList); bool hasWrittenMetadataObject = WriteStartArray(writer, underlyingList, contract, member, collectionContract, containerProperty); writer.WriteStartArray(); int initialDepth = writer.Top; int index = 0; // note that an error in the IEnumerable won't be caught foreach (object value in values) { try { JsonContract valueContract = contract.FinalItemContract ?? GetContractSafe(value); if (ShouldWriteReference(value, null, valueContract, contract, member)) { WriteReference(writer, value); } else { if (CheckForCircularReference(writer, value, null, valueContract, contract, member)) { SerializeValue(writer, value, valueContract, null, contract, member); } } } catch (Exception ex) { if (IsErrorHandled(underlyingList, contract, index, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth); } else { throw; } } finally { index++; } } writer.WriteEndArray(); if (hasWrittenMetadataObject) { writer.WriteEndObject(); } _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, underlyingList); }
private void SerializeMultidimensionalArray(JsonWriter writer, Array values, JsonArrayContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { OnSerializing(writer, contract, values); _serializeStack.Add(values); bool hasWrittenMetadataObject = WriteStartArray(writer, values, contract, member, collectionContract, containerProperty); SerializeMultidimensionalArray(writer, values, contract, member, writer.Top, CollectionUtils.ArrayEmpty <int>()); if (hasWrittenMetadataObject) { writer.WriteEndObject(); } _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, values); }
private void SerializePrimitive(JsonWriter writer, object value, JsonPrimitiveContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty) { if (contract.TypeCode == PrimitiveTypeCode.Bytes) { // if type name handling is enabled then wrap the base64 byte string in an object with the type name bool includeTypeDetails = ShouldWriteType(TypeNameHandling.Objects, contract, member, containerContract, containerProperty); if (includeTypeDetails) { writer.WriteStartObject(); WriteTypeProperty(writer, contract.CreatedType); writer.WritePropertyName(JsonTypeReflector.ValuePropertyName, false); JsonWriter.WriteValue(writer, contract.TypeCode, value); writer.WriteEndObject(); return; } } JsonWriter.WriteValue(writer, contract.TypeCode, value); }
private void SerializeConvertable(JsonWriter writer, JsonConverter converter, object value, JsonContract contract, JsonContainerContract collectionContract, JsonProperty containerProperty) { if (ShouldWriteReference(value, null, contract, collectionContract, containerProperty)) { WriteReference(writer, value); } else { if (!CheckForCircularReference(writer, value, null, contract, collectionContract, containerProperty)) { return; } _serializeStack.Add(value); if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Info) { TraceWriter.Trace(TraceLevel.Info, JsonPosition.FormatMessage(null, writer.Path, "Started serializing {0} with converter {1}.".FormatWith(CultureInfo.InvariantCulture, value.GetType(), converter.GetType())), null); } converter.WriteJson(writer, value, GetInternalSerializer()); if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Info) { TraceWriter.Trace(TraceLevel.Info, JsonPosition.FormatMessage(null, writer.Path, "Finished serializing {0} with converter {1}.".FormatWith(CultureInfo.InvariantCulture, value.GetType(), converter.GetType())), null); } _serializeStack.RemoveAt(_serializeStack.Count - 1); } }
private void SerializeObject(JsonWriter writer, object value, JsonObjectContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { OnSerializing(writer, contract, value); _serializeStack.Add(value); WriteObjectStart(writer, value, contract, member, collectionContract, containerProperty); int initialDepth = writer.Top; for (int index = 0; index < contract.Properties.Count; index++) { JsonProperty property = contract.Properties[index]; try { if (!CalculatePropertyValues(writer, value, contract, member, property, out JsonContract memberContract, out object memberValue)) { continue; } property.WritePropertyName(writer); SerializeValue(writer, memberValue, memberContract, property, contract, member); } catch (Exception ex) { if (IsErrorHandled(value, contract, property.PropertyName, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth); } else { throw; } } } IEnumerable <KeyValuePair <object, object> > extensionData = contract.ExtensionDataGetter?.Invoke(value); if (extensionData != null) { foreach (KeyValuePair <object, object> e in extensionData) { JsonContract keyContract = GetContractSafe(e.Key); JsonContract valueContract = GetContractSafe(e.Value); string propertyName = GetPropertyName(writer, e.Key, keyContract, out _); propertyName = (contract.ExtensionDataNameResolver != null) ? contract.ExtensionDataNameResolver(propertyName) : propertyName; if (ShouldWriteReference(e.Value, null, valueContract, contract, member)) { writer.WritePropertyName(propertyName); WriteReference(writer, e.Value); } else { if (!CheckForCircularReference(writer, e.Value, null, valueContract, contract, member)) { continue; } writer.WritePropertyName(propertyName); SerializeValue(writer, e.Value, valueContract, null, contract, member); } } } writer.WriteEndObject(); _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, value); }
private bool CalculatePropertyValues(JsonWriter writer, object value, JsonContainerContract contract, JsonProperty member, JsonProperty property, out JsonContract memberContract, out object memberValue) { if (!property.Ignored && property.Readable && ShouldSerialize(writer, property, value) && IsSpecified(writer, property, value)) { if (property.PropertyContract == null) { property.PropertyContract = Serializer._contractResolver.ResolveContract(property.PropertyType); } memberValue = property.ValueProvider.GetValue(value); memberContract = (property.PropertyContract.IsSealed) ? property.PropertyContract : GetContractSafe(memberValue); if (ShouldWriteProperty(memberValue, contract as JsonObjectContract, property)) { if (ShouldWriteReference(memberValue, property, memberContract, contract, member)) { property.WritePropertyName(writer); WriteReference(writer, memberValue); return(false); } if (!CheckForCircularReference(writer, memberValue, property, memberContract, contract, member)) { return(false); } if (memberValue == null) { JsonObjectContract objectContract = contract as JsonObjectContract; Required resolvedRequired = property._required ?? objectContract?.ItemRequired ?? Required.Default; if (resolvedRequired == Required.Always) { throw JsonSerializationException.Create(null, writer.ContainerPath, "Cannot write a null value for property '{0}'. Property requires a value.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName), null); } if (resolvedRequired == Required.DisallowNull) { throw JsonSerializationException.Create(null, writer.ContainerPath, "Cannot write a null value for property '{0}'. Property requires a non-null value.".FormatWith(CultureInfo.InvariantCulture, property.PropertyName), null); } } return(true); } } memberContract = null; memberValue = null; return(false); }
private bool ShouldWriteProperty(object memberValue, JsonObjectContract containerContract, JsonProperty property) { if (memberValue == null && ResolvedNullValueHandling(containerContract, property) == NullValueHandling.Ignore) { return(false); } if (HasFlag(property.DefaultValueHandling.GetValueOrDefault(Serializer._defaultValueHandling), DefaultValueHandling.Ignore) && MiscellaneousUtils.ValueEquals(memberValue, property.GetResolvedDefaultValue())) { return(false); } return(true); }
private bool CheckForCircularReference(JsonWriter writer, object value, JsonProperty property, JsonContract contract, JsonContainerContract containerContract, JsonProperty containerProperty) { if (value == null || contract.ContractType == JsonContractType.Primitive || contract.ContractType == JsonContractType.String) { return(true); } ReferenceLoopHandling?referenceLoopHandling = null; if (property != null) { referenceLoopHandling = property.ReferenceLoopHandling; } if (referenceLoopHandling == null && containerProperty != null) { referenceLoopHandling = containerProperty.ItemReferenceLoopHandling; } if (referenceLoopHandling == null && containerContract != null) { referenceLoopHandling = containerContract.ItemReferenceLoopHandling; } bool exists = (Serializer._equalityComparer != null) ? _serializeStack.Contains(value, Serializer._equalityComparer) : _serializeStack.Contains(value); if (exists) { string message = "Self referencing loop detected"; if (property != null) { message += " for property '{0}'".FormatWith(CultureInfo.InvariantCulture, property.PropertyName); } message += " with type '{0}'.".FormatWith(CultureInfo.InvariantCulture, value.GetType()); switch (referenceLoopHandling.GetValueOrDefault(Serializer._referenceLoopHandling)) { case ReferenceLoopHandling.Error: throw JsonSerializationException.Create(null, writer.ContainerPath, message, null); case ReferenceLoopHandling.Ignore: if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Verbose) { TraceWriter.Trace(TraceLevel.Verbose, JsonPosition.FormatMessage(null, writer.Path, message + ". Skipping serializing self referenced value."), null); } return(false); case ReferenceLoopHandling.Serialize: if (TraceWriter != null && TraceWriter.LevelFilter >= TraceLevel.Verbose) { TraceWriter.Trace(TraceLevel.Verbose, JsonPosition.FormatMessage(null, writer.Path, message + ". Serializing self referenced value."), null); } return(true); } } return(true); }
private bool ShouldWriteReference(object value, JsonProperty property, JsonContract valueContract, JsonContainerContract collectionContract, JsonProperty containerProperty) { if (value == null) { return(false); } if (valueContract.ContractType == JsonContractType.Primitive || valueContract.ContractType == JsonContractType.String) { return(false); } bool?isReference = ResolveIsReference(valueContract, property, collectionContract, containerProperty); if (isReference == null) { if (valueContract.ContractType == JsonContractType.Array) { isReference = HasFlag(Serializer._preserveReferencesHandling, PreserveReferencesHandling.Arrays); } else { isReference = HasFlag(Serializer._preserveReferencesHandling, PreserveReferencesHandling.Objects); } } if (!isReference.GetValueOrDefault()) { return(false); } return(Serializer.GetReferenceResolver().IsReferenced(this, value)); }
private bool?ResolveIsReference(JsonContract contract, JsonProperty property, JsonContainerContract collectionContract, JsonProperty containerProperty) { bool?isReference = null; // value could be coming from a dictionary or array and not have a property if (property != null) { isReference = property.IsReference; } if (isReference == null && containerProperty != null) { isReference = containerProperty.ItemIsReference; } if (isReference == null && collectionContract != null) { isReference = collectionContract.ItemIsReference; } if (isReference == null) { isReference = contract.IsReference; } return(isReference); }
private void SerializeValue(JsonWriter writer, object value, JsonContract valueContract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty) { if (value == null) { writer.WriteNull(); return; } JsonConverter converter = member?.Converter ?? containerProperty?.ItemConverter ?? containerContract?.ItemConverter ?? valueContract.Converter ?? Serializer.GetMatchingConverter(valueContract.UnderlyingType) ?? valueContract.InternalConverter; if (converter != null && converter.CanWrite) { SerializeConvertable(writer, converter, value, valueContract, containerContract, containerProperty); return; } switch (valueContract.ContractType) { case JsonContractType.Object: SerializeObject(writer, value, (JsonObjectContract)valueContract, member, containerContract, containerProperty); break; case JsonContractType.Array: JsonArrayContract arrayContract = (JsonArrayContract)valueContract; if (!arrayContract.IsMultidimensionalArray) { SerializeList(writer, (IEnumerable)value, arrayContract, member, containerContract, containerProperty); } else { SerializeMultidimensionalArray(writer, (Array)value, arrayContract, member, containerContract, containerProperty); } break; case JsonContractType.Primitive: SerializePrimitive(writer, value, (JsonPrimitiveContract)valueContract, member, containerContract, containerProperty); break; case JsonContractType.String: SerializeString(writer, value, (JsonStringContract)valueContract); break; case JsonContractType.Dictionary: JsonDictionaryContract dictionaryContract = (JsonDictionaryContract)valueContract; SerializeDictionary(writer, (value is IDictionary dictionary) ? dictionary : dictionaryContract.CreateWrapper(value), dictionaryContract, member, containerContract, containerProperty); break; #if HAVE_DYNAMIC case JsonContractType.Dynamic: SerializeDynamic(writer, (IDynamicMetaObjectProvider)value, (JsonDynamicContract)valueContract, member, containerContract, containerProperty); break; #endif #if HAVE_BINARY_SERIALIZATION case JsonContractType.Serializable: SerializeISerializable(writer, (ISerializable)value, (JsonISerializableContract)valueContract, member, containerContract, containerProperty); break; #endif case JsonContractType.Linq: ((JToken)value).WriteTo(writer, Serializer.Converters.ToArray()); break; } }
private void SerializeDynamic(JsonWriter writer, IDynamicMetaObjectProvider value, JsonDynamicContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { OnSerializing(writer, contract, value); _serializeStack.Add(value); WriteObjectStart(writer, value, contract, member, collectionContract, containerProperty); int initialDepth = writer.Top; for (int index = 0; index < contract.Properties.Count; index++) { JsonProperty property = contract.Properties[index]; // only write non-dynamic properties that have an explicit attribute if (property.HasMemberAttribute) { try { if (!CalculatePropertyValues(writer, value, contract, member, property, out JsonContract memberContract, out object memberValue)) { continue; } property.WritePropertyName(writer); SerializeValue(writer, memberValue, memberContract, property, contract, member); } catch (Exception ex) { if (IsErrorHandled(value, contract, property.PropertyName, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth); } else { throw; } } } } foreach (string memberName in value.GetDynamicMemberNames()) { if (contract.TryGetMember(value, memberName, out object memberValue)) { try { JsonContract valueContract = GetContractSafe(memberValue); if (!ShouldWriteDynamicProperty(memberValue)) { continue; } if (CheckForCircularReference(writer, memberValue, null, valueContract, contract, member)) { string resolvedPropertyName = (contract.PropertyNameResolver != null) ? contract.PropertyNameResolver(memberName) : memberName; writer.WritePropertyName(resolvedPropertyName); SerializeValue(writer, memberValue, valueContract, null, contract, member); } } catch (Exception ex) { if (IsErrorHandled(value, contract, memberName, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth); } else { throw; } } } } writer.WriteEndObject(); _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, value); }
private void WriteObjectStart(JsonWriter writer, object value, JsonContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { writer.WriteStartObject(); bool isReference = ResolveIsReference(contract, member, collectionContract, containerProperty) ?? HasFlag(Serializer._preserveReferencesHandling, PreserveReferencesHandling.Objects); // don't make readonly fields that aren't creator parameters the referenced value because they can't be deserialized to if (isReference && (member == null || member.Writable || HasCreatorParameter(collectionContract, member))) { WriteReferenceIdProperty(writer, contract.UnderlyingType, value); } if (ShouldWriteType(TypeNameHandling.Objects, contract, member, collectionContract, containerProperty)) { WriteTypeProperty(writer, contract.UnderlyingType); } }
private bool ShouldWriteType(TypeNameHandling typeNameHandlingFlag, JsonContract contract, JsonProperty member, JsonContainerContract containerContract, JsonProperty containerProperty) { TypeNameHandling resolvedTypeNameHandling = member?.TypeNameHandling ?? containerProperty?.ItemTypeNameHandling ?? containerContract?.ItemTypeNameHandling ?? Serializer._typeNameHandling; if (HasFlag(resolvedTypeNameHandling, typeNameHandlingFlag)) { return(true); } // instance type and the property's type's contract default type are different (no need to put the type in JSON because the type will be created by default) if (HasFlag(resolvedTypeNameHandling, TypeNameHandling.Auto)) { if (member != null) { if (contract.NonNullableUnderlyingType != member.PropertyContract.CreatedType) { return(true); } } else if (containerContract != null) { if (containerContract.ItemContract == null || contract.NonNullableUnderlyingType != containerContract.ItemContract.CreatedType) { return(true); } } else if (_rootType != null && _serializeStack.Count == _rootLevel) { JsonContract rootContract = Serializer._contractResolver.ResolveContract(_rootType); if (contract.NonNullableUnderlyingType != rootContract.CreatedType) { return(true); } } } return(false); }
private void SerializeDictionary(JsonWriter writer, IDictionary values, JsonDictionaryContract contract, JsonProperty member, JsonContainerContract collectionContract, JsonProperty containerProperty) { object underlyingDictionary = values is IWrappedDictionary wrappedDictionary ? wrappedDictionary.UnderlyingDictionary : values; OnSerializing(writer, contract, underlyingDictionary); _serializeStack.Add(underlyingDictionary); WriteObjectStart(writer, underlyingDictionary, contract, member, collectionContract, containerProperty); if (contract.ItemContract == null) { contract.ItemContract = Serializer._contractResolver.ResolveContract(contract.DictionaryValueType ?? typeof(object)); } if (contract.KeyContract == null) { contract.KeyContract = Serializer._contractResolver.ResolveContract(contract.DictionaryKeyType ?? typeof(object)); } int initialDepth = writer.Top; // Manual use of IDictionaryEnumerator instead of foreach to avoid DictionaryEntry box allocations. IDictionaryEnumerator e = values.GetEnumerator(); try { while (e.MoveNext()) { DictionaryEntry entry = e.Entry; string propertyName = GetPropertyName(writer, entry.Key, contract.KeyContract, out bool escape); propertyName = (contract.DictionaryKeyResolver != null) ? contract.DictionaryKeyResolver(propertyName) : propertyName; try { object value = entry.Value; JsonContract valueContract = contract.FinalItemContract ?? GetContractSafe(value); if (ShouldWriteReference(value, null, valueContract, contract, member)) { writer.WritePropertyName(propertyName, escape); WriteReference(writer, value); } else { if (!CheckForCircularReference(writer, value, null, valueContract, contract, member)) { continue; } writer.WritePropertyName(propertyName, escape); SerializeValue(writer, value, valueContract, null, contract, member); } } catch (Exception ex) { if (IsErrorHandled(underlyingDictionary, contract, propertyName, null, writer.ContainerPath, ex)) { HandleError(writer, initialDepth); } else { throw; } } } } finally { (e as IDisposable)?.Dispose(); } writer.WriteEndObject(); _serializeStack.RemoveAt(_serializeStack.Count - 1); OnSerialized(writer, contract, underlyingDictionary); }