45 lines
1.4 KiB
JavaScript
45 lines
1.4 KiB
JavaScript
import { blake2b } from "@exodus/blakejs";
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import { base32Encode } from "./utils.js";
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import { HASH_V2_EPOCH } from "./constants.js";
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const dateRegex = /^(\d{4})-(\d{2})-(\d{2})([tT ])(\d{2}):(\d{2}):(\d{2})\.?(\d{3})?(?:(?:([+-]\d{2}):?(\d{2}))|Z)?$/;
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const formatRFC3339 = (date) => {
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const pad = (num = 0) => `${+num < 10 ? 0 : ""}${+num}`;
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const padYear = (num = 0) => `${+num < 1e3 ? 0 : ""}${+num < 100 ? 0 : ""}${+num < 10 ? 0 : ""}${+num}`;
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let m = dateRegex.exec(date);
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if (m && m?.[9] === void 0) {
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m[9] = "+00";
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}
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if (m && m?.[10] === void 0) {
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m[10] = "00";
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}
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const offset = `${m?.[9]}:${m?.[10]}`.replace(/[+-]?00:00$/, "Z");
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return [
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padYear(m?.[1]),
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"-",
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pad(m?.[2]),
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"-",
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pad(m?.[3]),
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m?.[4],
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pad(m?.[5]),
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":",
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pad(m?.[6]),
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":",
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pad(m?.[7]),
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//ignore milliseconds (m[8])
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offset
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].join("");
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};
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function hashTwt(twt, version = 0) {
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const created = formatRFC3339(twt.created);
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const payload = [twt.url, created, twt.content].join("\n");
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const encoded = base32Encode(blake2b(payload, void 0, 32)).toLowerCase();
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const createdDate = new Date(twt.created), epochDate = new Date(HASH_V2_EPOCH);
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if (version === 1 || !version && createdDate < epochDate)
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return encoded.slice(-7);
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return encoded.slice(0, 12);
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}
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export {
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hashTwt as default
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};
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//# sourceMappingURL=hashTwt.js.map
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