feat: gate pasted hashes in the site search

A pasted MD5, CRC32 or SHA256 of scph5501.bin goes through the search
box's hash lookup to the card on the PlayStation page. 54 queries.

website/tools/measure.mjs

@@ -68,6 +68,27 @@ if (mode === 'weight') {
 			if (n === 0) await page.click('button[data-open-modal]');
 			const input = page.locator('dialog input[type="text"], dialog input[type="search"]').first();
 			await input.fill(query);
+			if (/^[0-9a-f]+$/.test(query) && [8, 32, 40, 64].includes(query.length)) {
+				// A pasted hash: the search offers "Look up this hash" first, and
+				// the lookup names the cards that hold the value. Its results
+				// are those cards.
+				const lookup = await page.waitForSelector('.rb-search-hash a', { timeout: 15000 });
+				const found = await context.newPage();
+				await found.goto(await lookup.evaluate((a) => a.href), { waitUntil: 'networkidle' });
+				await found.waitForFunction(() => /^Found|^No file/.test(document.getElementById('rb-file-lookup-status')?.textContent ?? ''), null, { timeout: 15000 });
+				results = await found.evaluate(() => {
+					const cards = [...document.querySelectorAll('#rb-file-lookup-result a')].filter((a) => a.textContent === 'Open its card');
+					return {
+						count: document.getElementById('rb-file-lookup-status')?.textContent ?? '',
+						top: cards.slice(0, 5).map((a) => `Open its card | ${new URL(a.href).pathname}${new URL(a.href).hash}`),
+					};
+				});
+				await found.close();
+				await page.waitForTimeout(300);
+				const transfer = sum(rows.slice(mark), () => true);
+				console.log(JSON.stringify({ query, transfer_kb: (transfer / 1024).toFixed(1), ...results }));
+				continue;
+			}
 			await page.waitForSelector('.pagefind-ui__result', { timeout: 15000 });
 			await page.waitForTimeout(1200);
 			results = await page.evaluate(() => {

website/tools/search_gate.py

@@ -112,6 +112,12 @@ QUERIES: dict[str, tuple[tuple[str, ...], int]] = {
     "r36s": (("platforms/", "which-pack/"), 3),
     "steam deck": (("platforms/emudeck/", "platforms/retrodeck/", "which-pack/"), 1),
     "knulli": (("platforms/knulli/",), 1),
+    # A pasted hash of any kind finds the file's card, its hashes now in a
+    # closed fold: the MD5, CRC32 and SHA256 of scph5501.bin. The search box
+    # offers "Look up this hash", and the lookup opens the card.
+    "490f666e1afb15b7362b406ed1cea246": (("systems/sony-playstation/",), 1),
+    "8d8cb7e4": (("systems/sony-playstation/",), 1),
+    "11052b6499e466bbf0a709b1f9cb6834a9418e66680387912451e971cf8a1fef": (("systems/sony-playstation/",), 1),
 }