Fix wget host-folder resolution to prevent empty/zero-file website archives

[Copilot]

The downloader could report compression success while producing unusable output (Total Downloaded file: 0) because the archive source folder was derived unreliably from wget stderr. This change hardens folder resolution so archiving targets the actual downloaded host directory.

• Downloader flow: normalize and parse wget stderr safely

  • Convert stderr chunks to string before parsing/emitting.
  • Replace brittle substring logic with explicit Resolving ... ( host extraction.

• Archive source selection: add deterministic fallback

  • If host extraction from stderr is unavailable, derive folder name from the requested URL (URL.hostname[:port]).
  • Skip conversion/archive step when no valid folder name can be resolved, instead of proceeding with invalid input.

• Behavioral outcome

  • Compression completion now maps to a real downloaded folder, avoiding false-success states that previously surfaced as zero downloaded files.

const resolvingMatch = responseText.match(/Resolving\s+([^\s]+)\s+\(/);
if (resolvingMatch && resolvingMatch[1]) {
  website = resolvingMatch[1];
}

const websiteFolder = website || getWebsiteFolderName(data.website);
if (!websiteFolder) {
  io.emit(data.token, { progress: "Unable to determine downloaded website folder." });
  return;
}
archiver(websiteFolder, io, data);

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• example.com
  • Triggering command: /usr/bin/wget wget -mkEpnp --no-if-modified-since REDACTED (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)