36 lines
1.1 KiB
C#
36 lines
1.1 KiB
C#
using System.Text.RegularExpressions;
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namespace PluralKit.Core;
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public static class MiscUtils
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{
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// discord mediaproxy URLs used to be stored directly in the database, so now we cleanup image urls before using them outside of proxying
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private static readonly Regex MediaProxyUrl =
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new(
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@"^https?://media.discordapp.net/attachments/(\d{17,19})/(\d{17,19})/([^/\\&\?]+)\.(png|jpg|jpeg|webp)(\?.*)?$");
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private static readonly string DiscordCdnReplacement = "https://cdn.discordapp.com/attachments/$1/$2/$3.$4";
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public static bool TryMatchUri(string input, out Uri uri)
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{
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if (input.StartsWith('<') && input.EndsWith('>'))
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input = input[1..^1];
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try
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{
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uri = new Uri(input);
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if (!uri.IsAbsoluteUri || uri.Scheme != "https")
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return false;
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}
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catch (UriFormatException)
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{
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uri = null;
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return false;
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}
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return true;
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}
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public static string? TryGetCleanCdnUrl(this string? url) =>
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url == null ? null : MediaProxyUrl.Replace(url, DiscordCdnReplacement);
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} |