137 lines
3.7 KiB
JavaScript
137 lines
3.7 KiB
JavaScript
// pure.ts
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import { schnorr } from "@noble/curves/secp256k1";
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import { bytesToHex as bytesToHex2 } from "@noble/hashes/utils";
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// core.ts
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var verifiedSymbol = Symbol("verified");
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var isRecord = (obj) => obj instanceof Object;
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function validateEvent(event) {
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if (!isRecord(event))
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return false;
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if (typeof event.kind !== "number")
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return false;
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if (typeof event.content !== "string")
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return false;
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if (typeof event.created_at !== "number")
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return false;
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if (typeof event.pubkey !== "string")
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return false;
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if (!event.pubkey.match(/^[a-f0-9]{64}$/))
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return false;
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if (!Array.isArray(event.tags))
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return false;
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for (let i2 = 0; i2 < event.tags.length; i2++) {
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let tag = event.tags[i2];
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if (!Array.isArray(tag))
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return false;
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for (let j = 0; j < tag.length; j++) {
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if (typeof tag[j] !== "string")
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return false;
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}
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}
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return true;
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}
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// pure.ts
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import { sha256 } from "@noble/hashes/sha256";
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// utils.ts
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import { bytesToHex, hexToBytes } from "@noble/hashes/utils";
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var utf8Decoder = new TextDecoder("utf-8");
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var utf8Encoder = new TextEncoder();
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// pure.ts
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var JS = class {
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generateSecretKey() {
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return schnorr.utils.randomPrivateKey();
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}
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getPublicKey(secretKey) {
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return bytesToHex2(schnorr.getPublicKey(secretKey));
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}
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finalizeEvent(t, secretKey) {
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const event = t;
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event.pubkey = bytesToHex2(schnorr.getPublicKey(secretKey));
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event.id = getEventHash(event);
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event.sig = bytesToHex2(schnorr.sign(getEventHash(event), secretKey));
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event[verifiedSymbol] = true;
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return event;
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}
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verifyEvent(event) {
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if (typeof event[verifiedSymbol] === "boolean")
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return event[verifiedSymbol];
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const hash = getEventHash(event);
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if (hash !== event.id) {
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event[verifiedSymbol] = false;
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return false;
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}
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try {
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const valid = schnorr.verify(event.sig, hash, event.pubkey);
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event[verifiedSymbol] = valid;
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return valid;
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} catch (err) {
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event[verifiedSymbol] = false;
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return false;
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}
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}
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};
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function serializeEvent(evt) {
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if (!validateEvent(evt))
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throw new Error("can't serialize event with wrong or missing properties");
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return JSON.stringify([0, evt.pubkey, evt.created_at, evt.kind, evt.tags, evt.content]);
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}
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function getEventHash(event) {
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let eventHash = sha256(utf8Encoder.encode(serializeEvent(event)));
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return bytesToHex2(eventHash);
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}
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var i = new JS();
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var generateSecretKey = i.generateSecretKey;
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var getPublicKey = i.getPublicKey;
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var finalizeEvent = i.finalizeEvent;
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var verifyEvent = i.verifyEvent;
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// kinds.ts
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var Reaction = 7;
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// nip25.ts
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function finishReactionEvent(t, reacted, privateKey) {
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const inheritedTags = reacted.tags.filter((tag) => tag.length >= 2 && (tag[0] === "e" || tag[0] === "p"));
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return finalizeEvent(
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{
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...t,
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kind: Reaction,
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tags: [...t.tags ?? [], ...inheritedTags, ["e", reacted.id], ["p", reacted.pubkey]],
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content: t.content ?? "+"
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},
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privateKey
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);
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}
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function getReactedEventPointer(event) {
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if (event.kind !== Reaction) {
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return void 0;
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}
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let lastETag;
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let lastPTag;
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for (let i2 = event.tags.length - 1; i2 >= 0 && (lastETag === void 0 || lastPTag === void 0); i2--) {
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const tag = event.tags[i2];
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if (tag.length >= 2) {
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if (tag[0] === "e" && lastETag === void 0) {
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lastETag = tag;
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} else if (tag[0] === "p" && lastPTag === void 0) {
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lastPTag = tag;
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}
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}
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}
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if (lastETag === void 0 || lastPTag === void 0) {
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return void 0;
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}
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return {
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id: lastETag[1],
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relays: [lastETag[2], lastPTag[2]].filter((x) => x !== void 0),
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author: lastPTag[1]
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};
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}
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export {
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finishReactionEvent,
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getReactedEventPointer
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};
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