76 lines
3.3 KiB
C#
76 lines
3.3 KiB
C#
using System;
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using System.Linq;
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using System.Net.Http;
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using System.Net.Sockets;
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using System.Threading.Tasks;
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using Myriad.Rest.Exceptions;
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using Newtonsoft.Json;
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using Npgsql;
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using PluralKit.Core;
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using Polly.Timeout;
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namespace PluralKit.Bot
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{
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public static class MiscUtils
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{
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public static string ProxyTagsString(this PKMember member, string separator = ", ") =>
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string.Join(separator, member.ProxyTags.Select(t => t.ProxyString.AsCode()));
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public static bool IsOurProblem(this Exception e)
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{
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// This function filters out sporadic errors out of our control from being reported to Sentry
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// otherwise we'd blow out our error reporting budget as soon as Discord takes a dump, or something.
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// Occasionally Discord's API will Have A Bad Time and return a bunch of CloudFlare errors (in HTML format).
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// The library tries to parse these HTML responses as JSON and crashes with a consistent exception message.
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if (e is JsonReaderException jre && jre.Message == "Unexpected character encountered while parsing value: <. Path '', line 0, position 0.") return false;
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// And now (2020-05-12), apparently Discord returns these weird responses occasionally. Also not our problem.
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if (e is BadRequestException bre && bre.ResponseBody.Contains("<center>nginx</center>")) return false;
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if (e is NotFoundException ne && ne.ResponseBody.Contains("<center>nginx</center>")) return false;
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if (e is UnauthorizedException ue && ue.ResponseBody.Contains("<center>nginx</center>")) return false;
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// Filter out timeout/ratelimit related stuff
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if (e is TooManyRequestsException) return false;
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if (e is RatelimitBucketExhaustedException) return false;
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if (e is TimeoutRejectedException) return false;
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// 5xxs? also not our problem :^)
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if (e is UnknownDiscordRequestException udre && (int)udre.StatusCode >= 500) return false;
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// Webhook server errors are also *not our problem*
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// (this includes rate limit errors, WebhookRateLimited is a subclass)
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if (e is WebhookExecutionErrorOnDiscordsEnd) return false;
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// Socket errors are *not our problem*
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if (e.GetBaseException() is SocketException) return false;
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// Tasks being cancelled for whatver reason are, you guessed it, also not our problem.
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if (e is TaskCanceledException) return false;
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// Sometimes Discord just times everything out.
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if (e is TimeoutException) return false;
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// HTTP/2 streams are complicated and break sometimes.
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if (e is HttpRequestException) return false;
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// Ignore "Database is shutting down" error
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if (e is PostgresException pe && pe.SqlState == "57P03") return false;
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// Ignore database timing out as well.
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if (e is NpgsqlException tpe && tpe.InnerException is TimeoutException)
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return false;
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// Ignore thread pool exhaustion errors
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if (e is NpgsqlException npe && npe.Message.Contains("The connection pool has been exhausted")) return false;
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// This may expanded at some point.
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return true;
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}
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}
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} |