134 lines
4.2 KiB
JavaScript
134 lines
4.2 KiB
JavaScript
// event.ts
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import { schnorr as schnorr2 } from "@noble/curves/secp256k1";
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import { sha256 } from "@noble/hashes/sha256";
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import { bytesToHex as bytesToHex2 } from "@noble/hashes/utils";
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// keys.ts
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import { schnorr } from "@noble/curves/secp256k1";
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import { bytesToHex } from "@noble/hashes/utils";
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function getPublicKey(privateKey) {
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return bytesToHex(schnorr.getPublicKey(privateKey));
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}
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// utils.ts
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var utf8Decoder = new TextDecoder("utf-8");
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var utf8Encoder = new TextEncoder();
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// event.ts
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var verifiedSymbol = Symbol("verified");
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var Kind = /* @__PURE__ */ ((Kind2) => {
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Kind2[Kind2["Metadata"] = 0] = "Metadata";
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Kind2[Kind2["Text"] = 1] = "Text";
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Kind2[Kind2["RecommendRelay"] = 2] = "RecommendRelay";
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Kind2[Kind2["Contacts"] = 3] = "Contacts";
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Kind2[Kind2["EncryptedDirectMessage"] = 4] = "EncryptedDirectMessage";
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Kind2[Kind2["EventDeletion"] = 5] = "EventDeletion";
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Kind2[Kind2["Repost"] = 6] = "Repost";
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Kind2[Kind2["Reaction"] = 7] = "Reaction";
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Kind2[Kind2["BadgeAward"] = 8] = "BadgeAward";
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Kind2[Kind2["ChannelCreation"] = 40] = "ChannelCreation";
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Kind2[Kind2["ChannelMetadata"] = 41] = "ChannelMetadata";
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Kind2[Kind2["ChannelMessage"] = 42] = "ChannelMessage";
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Kind2[Kind2["ChannelHideMessage"] = 43] = "ChannelHideMessage";
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Kind2[Kind2["ChannelMuteUser"] = 44] = "ChannelMuteUser";
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Kind2[Kind2["Blank"] = 255] = "Blank";
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Kind2[Kind2["Report"] = 1984] = "Report";
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Kind2[Kind2["ZapRequest"] = 9734] = "ZapRequest";
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Kind2[Kind2["Zap"] = 9735] = "Zap";
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Kind2[Kind2["RelayList"] = 10002] = "RelayList";
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Kind2[Kind2["ClientAuth"] = 22242] = "ClientAuth";
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Kind2[Kind2["NwcRequest"] = 23194] = "NwcRequest";
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Kind2[Kind2["HttpAuth"] = 27235] = "HttpAuth";
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Kind2[Kind2["ProfileBadge"] = 30008] = "ProfileBadge";
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Kind2[Kind2["BadgeDefinition"] = 30009] = "BadgeDefinition";
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Kind2[Kind2["Article"] = 30023] = "Article";
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Kind2[Kind2["FileMetadata"] = 1063] = "FileMetadata";
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return Kind2;
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})(Kind || {});
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function getBlankEvent(kind = 255 /* Blank */) {
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return {
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kind,
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content: "",
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tags: [],
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created_at: 0
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};
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}
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function finishEvent(t, privateKey) {
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const event = t;
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event.pubkey = getPublicKey(privateKey);
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event.id = getEventHash(event);
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event.sig = getSignature(event, privateKey);
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event[verifiedSymbol] = true;
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return event;
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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 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 i = 0; i < event.tags.length; i++) {
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let tag = event.tags[i];
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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] === "object")
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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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function verifySignature(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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return event[verifiedSymbol] = false;
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}
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try {
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return event[verifiedSymbol] = schnorr2.verify(event.sig, hash, event.pubkey);
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} catch (err) {
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return event[verifiedSymbol] = false;
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}
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}
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function signEvent(event, key) {
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console.warn(
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"nostr-tools: `signEvent` is deprecated and will be removed or changed in the future. Please use `getSignature` instead."
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);
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return getSignature(event, key);
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}
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function getSignature(event, key) {
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return bytesToHex2(schnorr2.sign(getEventHash(event), key));
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}
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export {
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Kind,
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finishEvent,
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getBlankEvent,
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getEventHash,
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getSignature,
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serializeEvent,
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signEvent,
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validateEvent,
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verifiedSymbol,
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verifySignature
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};
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