thepraandClaude Opus 5.5
bb9bd71391
- A remote `summary` is a content warning only on a Note or Question, or when `sensitive` is set. On Articles,
Events, Videos, Pages and Audio it is an excerpt (WordPress teasers, Mobilizon dates and places, Mbin titles) and
is now kept as `Post.Excerpt` instead of hiding the post. `Post.ObjectType` records the remote type, and the
Mastodon API shows a remote non-Note object's title above its body again.
- Persona usernames must match `^[a-z0-9_]+$`, as groups already did; a name outside it was unreachable from
Mastodon and Misskey.
- `postingRestrictedToMods` is defined in our JSON-LD context (Iceshrimp.NET drops undefined terms).
- `Vary: Accept` on actor and object URLs.
- Owner decision: blocks federate. A block sends `Block`, an unblock `Undo{Block}`; checked live against GoToSocial.
- Owner decision: a persona's and a group's `published`, and the day in new ids, is a random day up to two weeks
before creation, so personas made the same day no longer share a date. Migration _007 gives existing ones theirs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012CzABvBkbcFqoHdmi8b9WB
33 lines
1.1 KiB
C#
33 lines
1.1 KiB
C#
using System.Buffers.Binary;
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using System.Security.Cryptography;
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using MongoDB.Bson;
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namespace PrivaPub.Infrastructure.Ids
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{
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public static class PrivacyIds
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{
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public static string ForDay(DateTime when) => At(DateTime.SpecifyKind(when, DateTimeKind.Utc).Date);
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public static DateTime PublishedDay(DateTime created) =>
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DateTime.SpecifyKind(created, DateTimeKind.Utc).Date.AddDays(-RandomNumberGenerator.GetInt32(0, PublishedSpreadDays));
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const int PublishedSpreadDays = 14;
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public static string Arrived(DateTime published) =>
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DateTime.SpecifyKind(published, DateTimeKind.Utc) > DateTime.UtcNow - LiveWindow ? ObjectId.GenerateNewId().ToString() : At(published);
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static readonly TimeSpan LiveWindow = TimeSpan.FromHours(1);
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public static string At(DateTime when)
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{
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var seconds = Math.Clamp(new DateTimeOffset(DateTime.SpecifyKind(when, DateTimeKind.Utc)).ToUnixTimeSeconds(), 0,
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DateTimeOffset.UtcNow.AddDays(1).ToUnixTimeSeconds());
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Span<byte> bytes = stackalloc byte[12];
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BinaryPrimitives.WriteInt32BigEndian(bytes, (int)seconds);
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RandomNumberGenerator.Fill(bytes[4..]);
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return Convert.ToHexStringLower(bytes);
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}
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}
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}
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