working rss feed to nostr publish

node_modules/nostr-tools/lib/cjs/nip57.js

@@ -0,0 +1,193 @@
+"use strict";
+var __defProp = Object.defineProperty;
+var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
+var __getOwnPropNames = Object.getOwnPropertyNames;
+var __hasOwnProp = Object.prototype.hasOwnProperty;
+var __export = (target, all) => {
+  for (var name in all)
+    __defProp(target, name, { get: all[name], enumerable: true });
+};
+var __copyProps = (to, from, except, desc) => {
+  if (from && typeof from === "object" || typeof from === "function") {
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key) && key !== except)
+        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
+  }
+  return to;
+};
+var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
+
+// nip57.ts
+var nip57_exports = {};
+__export(nip57_exports, {
+  getZapEndpoint: () => getZapEndpoint,
+  makeZapReceipt: () => makeZapReceipt,
+  makeZapRequest: () => makeZapRequest,
+  useFetchImplementation: () => useFetchImplementation,
+  validateZapRequest: () => validateZapRequest
+});
+module.exports = __toCommonJS(nip57_exports);
+var import_base = require("@scure/base");
+
+// event.ts
+var import_secp256k1 = require("@noble/curves/secp256k1");
+var import_sha256 = require("@noble/hashes/sha256");
+var import_utils = require("@noble/hashes/utils");
+
+// utils.ts
+var utf8Decoder = new TextDecoder("utf-8");
+var utf8Encoder = new TextEncoder();
+
+// event.ts
+var verifiedSymbol = Symbol("verified");
+function serializeEvent(evt) {
+  if (!validateEvent(evt))
+    throw new Error("can't serialize event with wrong or missing properties");
+  return JSON.stringify([0, evt.pubkey, evt.created_at, evt.kind, evt.tags, evt.content]);
+}
+function getEventHash(event) {
+  let eventHash = (0, import_sha256.sha256)(utf8Encoder.encode(serializeEvent(event)));
+  return (0, import_utils.bytesToHex)(eventHash);
+}
+var isRecord = (obj) => obj instanceof Object;
+function validateEvent(event) {
+  if (!isRecord(event))
+    return false;
+  if (typeof event.kind !== "number")
+    return false;
+  if (typeof event.content !== "string")
+    return false;
+  if (typeof event.created_at !== "number")
+    return false;
+  if (typeof event.pubkey !== "string")
+    return false;
+  if (!event.pubkey.match(/^[a-f0-9]{64}$/))
+    return false;
+  if (!Array.isArray(event.tags))
+    return false;
+  for (let i = 0; i < event.tags.length; i++) {
+    let tag = event.tags[i];
+    if (!Array.isArray(tag))
+      return false;
+    for (let j = 0; j < tag.length; j++) {
+      if (typeof tag[j] === "object")
+        return false;
+    }
+  }
+  return true;
+}
+function verifySignature(event) {
+  if (typeof event[verifiedSymbol] === "boolean")
+    return event[verifiedSymbol];
+  const hash = getEventHash(event);
+  if (hash !== event.id) {
+    return event[verifiedSymbol] = false;
+  }
+  try {
+    return event[verifiedSymbol] = import_secp256k1.schnorr.verify(event.sig, hash, event.pubkey);
+  } catch (err) {
+    return event[verifiedSymbol] = false;
+  }
+}
+
+// nip57.ts
+var _fetch;
+try {
+  _fetch = fetch;
+} catch {
+}
+function useFetchImplementation(fetchImplementation) {
+  _fetch = fetchImplementation;
+}
+async function getZapEndpoint(metadata) {
+  try {
+    let lnurl = "";
+    let { lud06, lud16 } = JSON.parse(metadata.content);
+    if (lud06) {
+      let { words } = import_base.bech32.decode(lud06, 1e3);
+      let data = import_base.bech32.fromWords(words);
+      lnurl = utf8Decoder.decode(data);
+    } else if (lud16) {
+      let [name, domain] = lud16.split("@");
+      lnurl = `https://${domain}/.well-known/lnurlp/${name}`;
+    } else {
+      return null;
+    }
+    let res = await _fetch(lnurl);
+    let body = await res.json();
+    if (body.allowsNostr && body.nostrPubkey) {
+      return body.callback;
+    }
+  } catch (err) {
+  }
+  return null;
+}
+function makeZapRequest({
+  profile,
+  event,
+  amount,
+  relays,
+  comment = ""
+}) {
+  if (!amount)
+    throw new Error("amount not given");
+  if (!profile)
+    throw new Error("profile not given");
+  let zr = {
+    kind: 9734,
+    created_at: Math.round(Date.now() / 1e3),
+    content: comment,
+    tags: [
+      ["p", profile],
+      ["amount", amount.toString()],
+      ["relays", ...relays]
+    ]
+  };
+  if (event) {
+    zr.tags.push(["e", event]);
+  }
+  return zr;
+}
+function validateZapRequest(zapRequestString) {
+  let zapRequest;
+  try {
+    zapRequest = JSON.parse(zapRequestString);
+  } catch (err) {
+    return "Invalid zap request JSON.";
+  }
+  if (!validateEvent(zapRequest))
+    return "Zap request is not a valid Nostr event.";
+  if (!verifySignature(zapRequest))
+    return "Invalid signature on zap request.";
+  let p = zapRequest.tags.find(([t, v]) => t === "p" && v);
+  if (!p)
+    return "Zap request doesn't have a 'p' tag.";
+  if (!p[1].match(/^[a-f0-9]{64}$/))
+    return "Zap request 'p' tag is not valid hex.";
+  let e = zapRequest.tags.find(([t, v]) => t === "e" && v);
+  if (e && !e[1].match(/^[a-f0-9]{64}$/))
+    return "Zap request 'e' tag is not valid hex.";
+  let relays = zapRequest.tags.find(([t, v]) => t === "relays" && v);
+  if (!relays)
+    return "Zap request doesn't have a 'relays' tag.";
+  return null;
+}
+function makeZapReceipt({
+  zapRequest,
+  preimage,
+  bolt11,
+  paidAt
+}) {
+  let zr = JSON.parse(zapRequest);
+  let tagsFromZapRequest = zr.tags.filter(([t]) => t === "e" || t === "p" || t === "a");
+  let zap = {
+    kind: 9735,
+    created_at: Math.round(paidAt.getTime() / 1e3),
+    content: "",
+    tags: [...tagsFromZapRequest, ["bolt11", bolt11], ["description", zapRequest]]
+  };
+  if (preimage) {
+    zap.tags.push(["preimage", preimage]);
+  }
+  return zap;
+}