lua Comments - Answer Overflow

function containsSupportedLink(message: Message): boolean {
  const pattern = /https?:\/\/([\w.]+)((?:\/[^\s/#?]*)+)(\?[^\s#]*)?(#\S*)?/;
  const content = String(message.content);

  let i = 0;
  let result: RegExpExecArray | null;

  while ((result = pattern.exec(content)) != null) {
    let [_, host, path, query, fragment] = result; host = host.toLowerCase();

    if (host.endsWith('x.com') || host.endsWith('twitter.com')) {
      if (/^\/\w+\/status\/\d+/i.test(path)) return true;
    }

    for (const domain of supportedMediaDomains) {
      if (host.endsWith(domain) && hasSupportedExtension(path)) return true;
    }

    for (const domain of supportedDomains) {
      if (host.endsWith(domain) && !/^\/*$/.test(path)) return true;
    }

    if (i++ > 1000) {
      logger.warn('Exceeded link check limit?');
      return false;
    }
  }

  return false;
}

function containsSupportedLink(message: Message): boolean {
  const pattern = /https?:\/\/([\w.]+)((?:\/[^\s/#?]*)+)(\?[^\s#]*)?(#\S*)?/;
  const content = String(message.content);

  let i = 0;
  let result: RegExpExecArray | null;

  while ((result = pattern.exec(content)) != null) {
    let [_, host, path, query, fragment] = result; host = host.toLowerCase();

    if (host.endsWith('x.com') || host.endsWith('twitter.com')) {
      if (/^\/\w+\/status\/\d+/i.test(path)) return true;
    }

    for (const domain of supportedMediaDomains) {
      if (host.endsWith(domain) && hasSupportedExtension(path)) return true;
    }

    for (const domain of supportedDomains) {
      if (host.endsWith(domain) && !/^\/*$/.test(path)) return true;
    }

    if (i++ > 1000) {
      logger.warn('Exceeded link check limit?');
      return false;
    }
  }

  return false;
}

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

Apparently this was true at least in my testing, but checking on it in production it is seemingly getting stuck. I'm going to feel like such an idiot if this is the issue LOL.

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

At least that's what I think! I am not /actively/ monitoring those two metrics.

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

Additionally, it never actually gets stuck in a loop! Both CPU and memory usage stay way down, and the function in question is entirely synchronous (unless there's something evil going on).

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

I know that it's not my issue, but thanks for bringing that up! @matt4499, I like the way you re-wrote the loop to make it more obvious and I'll copy that over into my codebase. That loop really just iterates over the results of the pattern regex and unless message.content changes, it will always terminate.

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

The only thing I can think of next is to launch it in a debugger, learn a bunch about Discord.js's internals, and watch it and wait for it to lock up again.

15 replies

DIAdiscord.js - Imagine an app

•Created by lua on 9/30/2024 in #djs-questions

Node.js host process becomes "locked up" / "clogged" for simple bot

Another example:

2024-09-27T19:57:03.697239292Z [discord.js dbg] [WS => Shard 0] Heartbeat acknowledged, latency of 79ms.
2024-09-27T19:57:45.005351995Z [discord.js dbg] [WS => Shard 0] Heartbeat acknowledged, latency of 97ms.
(Docker sends SIGTERM)
(Docker sends SIGKILL 10s later)
(Process exits)
(Process created)
2024-09-27T20:00:12.187818342Z [mnsnd dbg] Starting up...
2024-09-27T20:00:12.245994300Z [discord.js dbg] Provided token: MTI1MzE1Mzc5MDE5MDY4MjEyMg.GekIOf.**************************************
2024-09-27T20:00:12.246347208Z [discord.js dbg] Preparing to connect to the gateway...

2024-09-27T19:57:03.697239292Z [discord.js dbg] [WS => Shard 0] Heartbeat acknowledged, latency of 79ms.
2024-09-27T19:57:45.005351995Z [discord.js dbg] [WS => Shard 0] Heartbeat acknowledged, latency of 97ms.
(Docker sends SIGTERM)
(Docker sends SIGKILL 10s later)
(Process exits)
(Process created)
2024-09-27T20:00:12.187818342Z [mnsnd dbg] Starting up...
2024-09-27T20:00:12.245994300Z [discord.js dbg] Provided token: MTI1MzE1Mzc5MDE5MDY4MjEyMg.GekIOf.**************************************
2024-09-27T20:00:12.246347208Z [discord.js dbg] Preparing to connect to the gateway...

15 replies

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