diff --git a/MediaBrowser.Common/Json/Converters/JsonNullableInt32Converter.cs b/MediaBrowser.Common/Json/Converters/JsonNullableInt32Converter.cs new file mode 100644 index 0000000000..6c93cd13e7 --- /dev/null +++ b/MediaBrowser.Common/Json/Converters/JsonNullableInt32Converter.cs @@ -0,0 +1,56 @@ +using System; +using System.Buffers; +using System.Buffers.Text; +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace MediaBrowser.Common.Json.Converters +{ + /// + /// Converts a nullable int32 object or value to/from JSON. + /// Required - some clients send an empty string. + /// + public class JsonNullableInt32Converter : JsonConverter + { + /// + public override int? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) + { + if (reader.TokenType == JsonTokenType.String) + { + ReadOnlySpan span = reader.HasValueSequence ? reader.ValueSequence.ToArray() : reader.ValueSpan; + if (Utf8Parser.TryParse(span, out int number, out int bytesConsumed) && span.Length == bytesConsumed) + { + return number; + } + + var stringValue = reader.GetString().AsSpan(); + + // value is null or empty, just return null. + if (stringValue.IsEmpty) + { + return null; + } + + if (int.TryParse(stringValue, out number)) + { + return number; + } + } + + return reader.GetInt32(); + } + + /// + public override void Write(Utf8JsonWriter writer, int? value, JsonSerializerOptions options) + { + if (value is null) + { + writer.WriteNullValue(); + } + else + { + writer.WriteNumberValue(value.Value); + } + } + } +} diff --git a/MediaBrowser.Common/Json/Converters/JsonNullableInt64Converter.cs b/MediaBrowser.Common/Json/Converters/JsonNullableInt64Converter.cs new file mode 100644 index 0000000000..369ea610a4 --- /dev/null +++ b/MediaBrowser.Common/Json/Converters/JsonNullableInt64Converter.cs @@ -0,0 +1,71 @@ +using System; +using System.Buffers; +using System.Buffers.Text; +using System.Text.Json; +using System.Text.Json.Serialization; + +namespace MediaBrowser.Common.Json.Converters +{ + /// + /// Parse JSON string as nullable long. + /// Javascript does not support 64-bit integers. + /// Required - some clients send an empty string. + /// + public class JsonNullableInt64Converter : JsonConverter + { + /// + /// Read JSON string as int64. + /// + /// . + /// Type. + /// Options. + /// Parsed value. + public override long? Read(ref Utf8JsonReader reader, Type type, JsonSerializerOptions options) + { + if (reader.TokenType == JsonTokenType.String) + { + // try to parse number directly from bytes + var span = reader.HasValueSequence ? reader.ValueSequence.ToArray() : reader.ValueSpan; + if (Utf8Parser.TryParse(span, out long number, out var bytesConsumed) && span.Length == bytesConsumed) + { + return number; + } + + var stringValue = reader.GetString().AsSpan(); + + // value is null or empty, just return null. + if (stringValue.IsEmpty) + { + return null; + } + + // try to parse from a string if the above failed, this covers cases with other escaped/UTF characters + if (long.TryParse(stringValue, out number)) + { + return number; + } + } + + // fallback to default handling + return reader.GetInt64(); + } + + /// + /// Write long to JSON long. + /// + /// . + /// Value to write. + /// Options. + public override void Write(Utf8JsonWriter writer, long? value, JsonSerializerOptions options) + { + if (value is null) + { + writer.WriteNullValue(); + } + else + { + writer.WriteNumberValue(value.Value); + } + } + } +} diff --git a/MediaBrowser.Common/Json/JsonDefaults.cs b/MediaBrowser.Common/Json/JsonDefaults.cs index 9d30927dbb..3f74c896f7 100644 --- a/MediaBrowser.Common/Json/JsonDefaults.cs +++ b/MediaBrowser.Common/Json/JsonDefaults.cs @@ -31,6 +31,8 @@ namespace MediaBrowser.Common.Json options.Converters.Add(new JsonGuidConverter()); options.Converters.Add(new JsonStringEnumConverter()); + options.Converters.Add(new JsonNullableInt32Converter()); + options.Converters.Add(new JsonNullableInt64Converter()); return options; }