2 // Protocol Buffers - Google's data interchange format
4 // https://developers.google.com/protocol-buffers/
20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
47     /// Reflection-based converter from JSON to messages.
51     /// Instances of this class are thread-safe, with no mutable state.
54     /// This is a simple start to get JSON parsing working. As it's reflection-based,
55     /// it's not as quick as baking calls into generated messages - but is a simpler implementation.
56     /// (This code is generally not heavily optimized.)
61         // Note: using 0-9 instead of \d to ensure no non-ASCII digits.
63 …(?<datetime>[0-9]{4}-[01][0-9]-[0-3][0-9]T[012][0-9]:[0-5][0-9]:[0-5][0-9])(?<subseconds>\.[0-9]{1…
64 …tic readonly Regex DurationRegex = new Regex(@"^(?<sign>-)?(?<int>[0-9]{1,12})(?<subseconds>\.[0-9…
67 …private static readonly EnumDescriptor NullValueDescriptor = StructReflection.Descriptor.EnumTypes…
76 …{ Timestamp.Descriptor.FullName, (parser, message, tokenizer) => MergeTimestamp(message, tokenizer…
77 …{ Duration.Descriptor.FullName, (parser, message, tokenizer) => MergeDuration(message, tokenizer.N…
78 …{ Value.Descriptor.FullName, (parser, message, tokenizer) => parser.MergeStructValue(message, toke…
79             { ListValue.Descriptor.FullName, (parser, message, tokenizer) =>
80 …parser.MergeRepeatedField(message, message.Descriptor.Fields[ListValue.ValuesFieldNumber], tokeniz…
81 …{ Struct.Descriptor.FullName, (parser, message, tokenizer) => parser.MergeStruct(message, tokenize…
82 …  { Any.Descriptor.FullName, (parser, message, tokenizer) => parser.MergeAny(message, tokenizer) },
83 …{ FieldMask.Descriptor.FullName, (parser, message, tokenizer) => MergeFieldMask(message, tokenizer…
84             { Int32Value.Descriptor.FullName, MergeWrapperField },
85             { Int64Value.Descriptor.FullName, MergeWrapperField },
86             { UInt32Value.Descriptor.FullName, MergeWrapperField },
87             { UInt64Value.Descriptor.FullName, MergeWrapperField },
88             { FloatValue.Descriptor.FullName, MergeWrapperField },
89             { DoubleValue.Descriptor.FullName, MergeWrapperField },
90             { BytesValue.Descriptor.FullName, MergeWrapperField },
91             { StringValue.Descriptor.FullName, MergeWrapperField },
92             { BoolValue.Descriptor.FullName, MergeWrapperField }
99 …parser.MergeField(message, message.Descriptor.Fields[WrappersReflection.WrapperValueFieldNumber], …  in MergeWrapperField()
147 …      /// that assumption. This is implemented as an LL(1) recursive descent parser over the stream
148 …   /// of tokens provided by the tokenizer. This token stream is assumed to be valid JSON, with the
149 …    /// tokenizer performing that validation - but not every token stream is valid "protobuf JSON".
157             if (message.Descriptor.IsWellKnownType)  in Merge()
160                 if (WellKnownTypeHandlers.TryGetValue(message.Descriptor.FullName, out handler))  in Merge()
165                 // Well-known types with no special handling continue in the normal way.  in Merge()
172             var descriptor = message.Descriptor;  in Merge()
173             var jsonFieldMap = descriptor.Fields.ByJsonName();  in Merge()
174             // All the oneof fields we've already accounted for - we can only see each of them once.  in Merge()
175             // The set is created lazily to avoid the overhead of creating a set for every message  in Merge()
232                     field.Accessor.Clear(message);  in MergeField()
249                 field.Accessor.SetValue(message, value);  in MergeField()
261             IList list = (IList) field.Accessor.GetValue(message);  in MergeRepeatedField()
281 …// Map fields are always objects, even if the values are well-known types: ParseSingleValue handle…  in MergeMapField()
295             IDictionary dictionary = (IDictionary) field.Accessor.GetValue(message);  in MergeMapField()
317                 field.MessageType.FullName == Value.Descriptor.FullName;  in IsGoogleProtobufValueField()
419         /// <param name="descriptor">Descriptor of message type to parse.</param>
422         public IMessage Parse(string json, MessageDescriptor descriptor)  in Parse()  argument
425             ProtoPreconditions.CheckNotNull(descriptor, nameof(descriptor));  in Parse()
426             return Parse(new StringReader(json), descriptor);  in Parse()
433         /// <param name="descriptor">Descriptor of message type to parse.</param>
436         public IMessage Parse(TextReader jsonReader, MessageDescriptor descriptor)  in Parse()  argument
439             ProtoPreconditions.CheckNotNull(descriptor, nameof(descriptor));  in Parse()
440             IMessage message = descriptor.Parser.CreateTemplate();  in Parse()
448             var fields = message.Descriptor.Fields;  in MergeStructValue()
452                     fields[Value.NullValueFieldNumber].Accessor.SetValue(message, 0);  in MergeStructValue()
455 …           fields[Value.StringValueFieldNumber].Accessor.SetValue(message, firstToken.StringValue);  in MergeStructValue()
458 …           fields[Value.NumberValueFieldNumber].Accessor.SetValue(message, firstToken.NumberValue);  in MergeStructValue()
462 …fields[Value.BoolValueFieldNumber].Accessor.SetValue(message, firstToken.Type == JsonToken.TokenTy…  in MergeStructValue()
470                         field.Accessor.SetValue(message, structMessage);  in MergeStructValue()
479                         field.Accessor.SetValue(message, list);  in MergeStructValue()
496             var field = message.Descriptor.Fields[Struct.FieldsFieldNumber];  in MergeStruct()
537             MessageDescriptor descriptor = settings.TypeRegistry.Find(typeName);  in MergeAny()
538             if (descriptor == null)  in MergeAny()
540 …throw new InvalidOperationException($"Type registry has no descriptor for type name '{typeName}'");  in MergeAny()
546             var body = descriptor.Parser.CreateTemplate();  in MergeAny()
547             if (descriptor.IsWellKnownType)  in MergeAny()
558             message.Descriptor.Fields[Any.TypeUrlFieldNumber].Accessor.SetValue(message, typeUrl);  in MergeAny()
559             message.Descriptor.Fields[Any.ValueFieldNumber].Accessor.SetValue(message, data);  in MergeAny()
562 …// Well-known types end up in a property called "value" in the JSON. As there's no longer a @type …
563 …// in the given JSON token stream, we should *only* have tokens of start-object, name("value"), th…
564         // itself, and then end-object.
567             var token = tokenizer.Next(); // Definitely start-object; checked in previous method  in MergeWellKnownTypeAnyBody()
572 …on($"Expected '{JsonFormatter.AnyWellKnownTypeValueField}' property for well-known type Any body");  in MergeWellKnownTypeAnyBody()
578 …throw new InvalidProtocolBufferException($"Expected end-object token after @type/value for well-kn…  in MergeWellKnownTypeAnyBody()
765             else if (text.StartsWith("-0") && text.Length > 2)
789         /// way that Mono parses out-of-range values as infinity.
794                 (isNegativeInfinity && text != "-Infinity") ||  in ValidateInfinityAndNan()
820                     "yyyy-MM-dd'T'HH:mm:ss",  in MergeTimestamp()
828                     // This should always work, as we've got 1-9 digits.  in MergeTimestamp()
835 …// This is the amount we need to *subtract* from the local time to get to UTC - hence - => +1 and …  in MergeTimestamp()
836                     int sign = offset[0] == '-' ? 1 : -1;  in MergeTimestamp()
846 …// This is an offset of -00:00, which means "unknown local offset". It makes no sense for a timest…  in MergeTimestamp()
856                     nanosToAdd = nanosToAdd - Duration.NanosecondsPerSecond;  in MergeTimestamp()
868 …message.Descriptor.Fields[Timestamp.SecondsFieldNumber].Accessor.SetValue(message, timestamp.Secon…  in MergeTimestamp()
869 … message.Descriptor.Fields[Timestamp.NanosFieldNumber].Accessor.SetValue(message, timestamp.Nanos);  in MergeTimestamp()
896             var multiplier = sign == "-" ? -1 : 1;  in MergeDuration()
904                     // This should always work, as we've got 1-9 digits.  in MergeDuration()
912 …        message.Descriptor.Fields[Duration.SecondsFieldNumber].Accessor.SetValue(message, seconds);  in MergeDuration()
913 …            message.Descriptor.Fields[Duration.NanosFieldNumber].Accessor.SetValue(message, nanos);  in MergeDuration()
929 …IList messagePaths = (IList) message.Descriptor.Fields[FieldMask.PathsFieldNumber].Accessor.GetVal…  in MergeFieldMask()
940 …// Note: this is probably unnecessary now, but currently retained to be as close as possible to the  in ToSnakeCase()
950                     // Consider when the current character B is capitalized:  in ToSnakeCase()
967 …                 // ascii_tolower, but we already know that c *is* an upper case ASCII character...  in ToSnakeCase()
968                     builder.Append((char) (c + 'a' - 'A'));  in ToSnakeCase()
1007 …   /// messages, not collections - so a message within a collection within a message only counts as