working rss feed to nostr publish

node_modules/nostr-tools/lib/esm/nip25.js

@@ -0,0 +1,108 @@
+// event.ts
+import { schnorr as schnorr2 } from "@noble/curves/secp256k1";
+import { sha256 } from "@noble/hashes/sha256";
+import { bytesToHex as bytesToHex2 } from "@noble/hashes/utils";
+
+// keys.ts
+import { schnorr } from "@noble/curves/secp256k1";
+import { bytesToHex } from "@noble/hashes/utils";
+function getPublicKey(privateKey) {
+  return bytesToHex(schnorr.getPublicKey(privateKey));
+}
+
+// utils.ts
+var utf8Decoder = new TextDecoder("utf-8");
+var utf8Encoder = new TextEncoder();
+
+// event.ts
+var verifiedSymbol = Symbol("verified");
+function finishEvent(t, privateKey) {
+  const event = t;
+  event.pubkey = getPublicKey(privateKey);
+  event.id = getEventHash(event);
+  event.sig = getSignature(event, privateKey);
+  event[verifiedSymbol] = true;
+  return event;
+}
+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 = sha256(utf8Encoder.encode(serializeEvent(event)));
+  return bytesToHex2(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 getSignature(event, key) {
+  return bytesToHex2(schnorr2.sign(getEventHash(event), key));
+}
+
+// nip25.ts
+function finishReactionEvent(t, reacted, privateKey) {
+  const inheritedTags = reacted.tags.filter((tag) => tag.length >= 2 && (tag[0] === "e" || tag[0] === "p"));
+  return finishEvent(
+    {
+      ...t,
+      kind: 7 /* Reaction */,
+      tags: [...t.tags ?? [], ...inheritedTags, ["e", reacted.id], ["p", reacted.pubkey]],
+      content: t.content ?? "+"
+    },
+    privateKey
+  );
+}
+function getReactedEventPointer(event) {
+  if (event.kind !== 7 /* Reaction */) {
+    return void 0;
+  }
+  let lastETag;
+  let lastPTag;
+  for (let i = event.tags.length - 1; i >= 0 && (lastETag === void 0 || lastPTag === void 0); i--) {
+    const tag = event.tags[i];
+    if (tag.length >= 2) {
+      if (tag[0] === "e" && lastETag === void 0) {
+        lastETag = tag;
+      } else if (tag[0] === "p" && lastPTag === void 0) {
+        lastPTag = tag;
+      }
+    }
+  }
+  if (lastETag === void 0 || lastPTag === void 0) {
+    return void 0;
+  }
+  return {
+    id: lastETag[1],
+    relays: [lastETag[2], lastPTag[2]].filter((x) => x !== void 0),
+    author: lastPTag[1]
+  };
+}
+export {
+  finishReactionEvent,
+  getReactedEventPointer
+};