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Explain save failures and keep download diagnostics available

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This commit is contained in:
Jonathan Sykes
2026-10-03 19:23:07 +08:00
parent f341b0c76e
commit 5e78374efb
10 changed files with 209 additions and 4 deletions
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28
frontend/download-errors.js Normal file
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/* Plain-language save failures, with the original diagnostic kept on demand. */
(function(root) {
'use strict';
function message(error) {
const raw = String(error?.message || error || '').trim();
if (!raw) return 'Could not save this video. Try Retry.';
if (/not available in your country|geo.?restricted/i.test(raw)) return 'This video is unavailable in the server’s region. It may still play on your device.';
if (/private video|members.only|join this channel|confirm your age|age.restricted/i.test(raw)) return 'YouTube requires access this server does not have to save this video.';
if (/removed by|video has been removed|copyright claim/i.test(raw)) return 'YouTube is no longer making this video available to the server.';
if (/sign in to confirm|not a bot/i.test(raw)) return 'YouTube temporarily blocked the server’s download request. Try Retry later.';
if (/video unavailable/i.test(raw)) return 'YouTube isn’t letting the server save this video. Try Retry; it may still play on YouTube.';
if (/requested format (?:is )?not available|no video formats found/i.test(raw)) return 'No downloadable version was available. Try Retry to check other download methods.';
if (/^ERROR:|^WARNING:|Traceback|yt-dlp exited|yt-dlp not found/i.test(raw)) return 'The server could not save this video. Try Retry.';
// Existing plain-language connection/quota/validation messages remain useful.
return raw.length <= 180 && !raw.includes('\n') ? raw : 'Could not save this video. Try Retry.';
}
function appendDetails(container, error) {
if (!error) return;
const doc = container.ownerDocument;
const details = doc.createElement('details'); details.className = 'download-error-details';
const summary = doc.createElement('summary'); summary.textContent = 'Technical details';
const pre = doc.createElement('pre'); pre.textContent = String(error?.message || error);
details.append(summary, pre); container.append(details);
return details;
}
const api = { message, appendDetails };
if (typeof module !== 'undefined') module.exports = api; else root.DownloadErrors = api;
})(typeof window !== 'undefined' ? window : globalThis);