include node_modules so release .zip is deployable

node_modules/nostr-tools/lib/esm/nip98.js

@@ -0,0 +1,140 @@
+// nip98.ts
+import { base64 } from "@scure/base";
+
+// event.ts
+import { schnorr } from "@noble/curves/secp256k1";
+import { sha256 } from "@noble/hashes/sha256";
+import { bytesToHex } from "@noble/hashes/utils";
+
+// utils.ts
+var utf8Decoder = new TextDecoder("utf-8");
+var utf8Encoder = new TextEncoder();
+
+// event.ts
+var verifiedSymbol = Symbol("verified");
+function getBlankEvent(kind = 255 /* Blank */) {
+  return {
+    kind,
+    content: "",
+    tags: [],
+    created_at: 0
+  };
+}
+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 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] = schnorr.verify(event.sig, hash, event.pubkey);
+  } catch (err) {
+    return event[verifiedSymbol] = false;
+  }
+}
+
+// nip98.ts
+var _authorizationScheme = "Nostr ";
+async function getToken(loginUrl, httpMethod, sign, includeAuthorizationScheme = false) {
+  if (!loginUrl || !httpMethod)
+    throw new Error("Missing loginUrl or httpMethod");
+  const event = getBlankEvent(27235 /* HttpAuth */);
+  event.tags = [
+    ["u", loginUrl],
+    ["method", httpMethod]
+  ];
+  event.created_at = Math.round(new Date().getTime() / 1e3);
+  const signedEvent = await sign(event);
+  const authorizationScheme = includeAuthorizationScheme ? _authorizationScheme : "";
+  return authorizationScheme + base64.encode(utf8Encoder.encode(JSON.stringify(signedEvent)));
+}
+async function validateToken(token, url, method) {
+  const event = await unpackEventFromToken(token).catch((error) => {
+    throw error;
+  });
+  const valid = await validateEvent2(event, url, method).catch((error) => {
+    throw error;
+  });
+  return valid;
+}
+async function unpackEventFromToken(token) {
+  if (!token) {
+    throw new Error("Missing token");
+  }
+  token = token.replace(_authorizationScheme, "");
+  const eventB64 = utf8Decoder.decode(base64.decode(token));
+  if (!eventB64 || eventB64.length === 0 || !eventB64.startsWith("{")) {
+    throw new Error("Invalid token");
+  }
+  const event = JSON.parse(eventB64);
+  return event;
+}
+async function validateEvent2(event, url, method) {
+  if (!event) {
+    throw new Error("Invalid nostr event");
+  }
+  if (!verifySignature(event)) {
+    throw new Error("Invalid nostr event, signature invalid");
+  }
+  if (event.kind !== 27235 /* HttpAuth */) {
+    throw new Error("Invalid nostr event, kind invalid");
+  }
+  if (!event.created_at) {
+    throw new Error("Invalid nostr event, created_at invalid");
+  }
+  if (Math.round(new Date().getTime() / 1e3) - event.created_at > 60) {
+    throw new Error("Invalid nostr event, expired");
+  }
+  const urlTag = event.tags.find((t) => t[0] === "u");
+  if (urlTag?.length !== 1 && urlTag?.[1] !== url) {
+    throw new Error("Invalid nostr event, url tag invalid");
+  }
+  const methodTag = event.tags.find((t) => t[0] === "method");
+  if (methodTag?.length !== 1 && methodTag?.[1].toLowerCase() !== method.toLowerCase()) {
+    throw new Error("Invalid nostr event, method tag invalid");
+  }
+  return true;
+}
+export {
+  getToken,
+  unpackEventFromToken,
+  validateEvent2 as validateEvent,
+  validateToken
+};