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Code Issues Releases Wiki Activity

Truncate rich presence status strings to 128 bytes (#7318)

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Truncate rich presence status strings to 128 bytes

Co-authored-by: Dan Balasescu <smoogipoo@smgi.me>
This commit is contained in:
Dean Herbert 2019-12-25 12:28:44 +09:00 committed by GitHub
commit a5e30859a9
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1 changed files with 25 additions and 2 deletions
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27
osu.Desktop/DiscordRichPresence.cs
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@ -1,6 +1,8 @@
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.Text;
using DiscordRPC;
using DiscordRPC.Message;
using osu.Framework.Allocation;
@ -81,8 +83,8 @@ namespace osu.Desktop
if (status.Value is UserStatusOnline && activity.Value != null)
{
presence.State = activity.Value.Status;
presence.Details = getDetails(activity.Value);
presence.State = truncate(activity.Value.Status);
presence.Details = truncate(getDetails(activity.Value));
}
else
{
@ -100,6 +102,27 @@ namespace osu.Desktop
client.SetPresence(presence);
}
private static readonly int ellipsis_length = Encoding.UTF8.GetByteCount(new[] { '…' });
private string truncate(string str)
{
if (Encoding.UTF8.GetByteCount(str) <= 128)
return str;
ReadOnlyMemory<char> strMem = str.AsMemory();
do
{
strMem = strMem[..^1];
} while (Encoding.UTF8.GetByteCount(strMem.Span) + ellipsis_length > 128);
return string.Create(strMem.Length + 1, strMem, (span, mem) =>
{
mem.Span.CopyTo(span);
span[^1] = '…';
});
}
private string getDetails(UserActivity activity)
{
switch (activity)