Function parseHttpDate

src/scheduler/headerParser.ts:190–201

* Parse HTTP-date format (RFC 7231).

(value: string)

 * Parse HTTP-date format (RFC 7231).
 */
function parseHttpDate(value: string): number | null {
  const timestamp = Date.parse(value);
  if (!isNaN(timestamp)) {
    // Sanity check: within reasonable range (not too far past or future)
    const now = Date.now();
    const oneYearMs = 365 * 24 * 60 * 60 * 1000;
    if (timestamp > now - oneYearMs && timestamp < now + oneYearMs) {
      return timestamp;
    }
  }
  return null;
}

/**
 * Parse duration strings like "1s", "100ms", "1m30s", "1h30s", "2h15m30s".