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34 lines
1.4 KiB
34 lines
1.4 KiB
using System;
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using Newtonsoft.Json;
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namespace Discord.Net.Converters
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{
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public class UnixTimestampConverter : JsonConverter
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{
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public static readonly UnixTimestampConverter Instance = new UnixTimestampConverter();
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public override bool CanConvert(Type objectType) => true;
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public override bool CanRead => true;
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public override bool CanWrite => true;
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// 1e13 unix ms = year 2286
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// necessary to prevent discord.js from sending values in the e15 and overflowing a DTO
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private const long MaxSaneMs = 1_000_000_000_000_0;
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public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
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{
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// Discord doesn't validate if timestamps contain decimals or not, and they also don't validate if timestamps are reasonably sized
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if (reader.Value is double d && d < MaxSaneMs)
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return new DateTimeOffset(1970, 1, 1, 0, 0, 0, 0, TimeSpan.Zero).AddMilliseconds(d);
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else if (reader.Value is long l && l < MaxSaneMs)
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return new DateTimeOffset(1970, 1, 1, 0, 0, 0, 0, TimeSpan.Zero).AddMilliseconds(l);
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return Optional<DateTimeOffset>.Unspecified;
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}
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public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
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{
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throw new NotImplementedException();
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}
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}
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}
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