112 lines
3.4 KiB
TypeScript
112 lines
3.4 KiB
TypeScript
/**
|
|
* Repairs 0011, which was too eager about what counts as a site icon.
|
|
*
|
|
* 0011 tested for "favicon" anywhere in the path, so a legitimate `og:image`
|
|
* like mirtitles.org's `/wp-content/uploads/2022/04/mir-logo-favicon.png` was
|
|
* moved into `faviconUrl` and its `thumbnailUrl` cleared — which also demoted
|
|
* the dump from an image card to a pull-quote in the journal mosaic. A blanket
|
|
* `.svg` match had the same effect on real artwork.
|
|
*
|
|
* `isIconUrl` here looks at the *filename* rather than the whole path: an icon
|
|
* is named `favicon…`, `apple-touch-icon…` or `icon…`, lives in an `icons/`
|
|
* directory, or ends in `.ico`. That both spares `mir-logo-favicon.png` and
|
|
* catches `icon_SEARCH.png`, which 0011 missed.
|
|
*
|
|
* Applied in both directions, and deliberately narrow when reversing: a value
|
|
* is only promoted back to `thumbnailUrl` if it matches 0011's rule but not
|
|
* this one, so rows written by a normal fetch aren't disturbed.
|
|
*
|
|
* @module
|
|
*/
|
|
|
|
import type { DatabaseSync } from "node:sqlite";
|
|
|
|
/**
|
|
* Applies 0011's rule, kept verbatim so its false positives can be
|
|
* identified.
|
|
*/
|
|
function wasIconUrl0011(raw: string): boolean {
|
|
let pathname: string;
|
|
try {
|
|
pathname = new URL(raw).pathname;
|
|
} catch {
|
|
return false;
|
|
}
|
|
return /favicon|apple-touch-icon|\/icons?\//i.test(pathname) ||
|
|
/\.(ico|svg)$/i.test(pathname);
|
|
}
|
|
|
|
/**
|
|
* Checks whether a URL names a site icon, judged on its filename and
|
|
* directory.
|
|
*/
|
|
function isIconUrl(raw: string): boolean {
|
|
let pathname: string;
|
|
try {
|
|
pathname = new URL(raw).pathname;
|
|
} catch {
|
|
return false;
|
|
}
|
|
const segments = pathname.split("/").filter(Boolean);
|
|
const filename = segments.pop() ?? "";
|
|
if (/\.ico$/i.test(filename)) return true;
|
|
if (segments.some((s) => /^(favicons?|icons?)$/i.test(s))) return true;
|
|
const basename = filename.replace(/\.[^.]+$/, "");
|
|
return /^(favicon|apple-touch-icon|icon)(?=$|[-_.\d])/i.test(basename);
|
|
}
|
|
|
|
/** Applies this migration to `db`. */
|
|
export function up(db: DatabaseSync): void {
|
|
const rows = db.prepare(
|
|
`SELECT id, rich_content FROM dumps
|
|
WHERE kind = 'url' AND rich_content IS NOT NULL;`,
|
|
).all() as { id: string; rich_content: string }[];
|
|
|
|
const update = db.prepare(
|
|
`UPDATE dumps SET rich_content = ? WHERE id = ?;`,
|
|
);
|
|
|
|
let restored = 0;
|
|
let reclassified = 0;
|
|
for (const row of rows) {
|
|
let rich: { thumbnailUrl?: string; faviconUrl?: string };
|
|
try {
|
|
rich = JSON.parse(row.rich_content);
|
|
} catch {
|
|
continue; // malformed payload — leave it untouched
|
|
}
|
|
|
|
// Artwork 0011 mistook for an icon: put it back.
|
|
if (
|
|
rich.faviconUrl && !rich.thumbnailUrl &&
|
|
wasIconUrl0011(rich.faviconUrl) && !isIconUrl(rich.faviconUrl)
|
|
) {
|
|
const { faviconUrl: _dropped, ...rest } = rich;
|
|
update.run(
|
|
JSON.stringify({ ...rest, thumbnailUrl: rich.faviconUrl }),
|
|
row.id,
|
|
);
|
|
restored++;
|
|
continue;
|
|
}
|
|
|
|
// An icon 0011's rule didn't recognize: move it now.
|
|
if (
|
|
rich.thumbnailUrl && !rich.faviconUrl && isIconUrl(rich.thumbnailUrl)
|
|
) {
|
|
const { thumbnailUrl: _dropped, ...rest } = rich;
|
|
update.run(
|
|
JSON.stringify({ ...rest, faviconUrl: rich.thumbnailUrl }),
|
|
row.id,
|
|
);
|
|
reclassified++;
|
|
}
|
|
}
|
|
|
|
if (restored > 0 || reclassified > 0) {
|
|
console.log(
|
|
`[migrate] 0012: restored ${restored} thumbnail(s), reclassified ${reclassified} icon(s)`,
|
|
);
|
|
}
|
|
}
|