feat: nip46 oAuth login

packages/app/src/Hooks/useLoginHandler.tsx

@@ -1,4 +1,4 @@
-import { fetchNip05Pubkey, unwrap } from "@snort/shared";
+import { fetchNostrAddress, unwrap } from "@snort/shared";
 import { KeyStorage, Nip46Signer } from "@snort/system";
 import { useIntl } from "react-intl";
 
@@ -51,11 +51,38 @@ export default function useLoginHandler() {
       LoginStore.loginWithPubkey(hexKey, LoginSessionType.PublicKey);
     } else if (key.match(EmailRegex)) {
       const [name, domain] = key.split("@");
-      const hexKey = await fetchNip05Pubkey(name, domain);
-      if (!hexKey) {
+      const json = await fetchNostrAddress(name, domain);
+      if (!json) {
         throw new Error("Invalid nostr address");
       }
-      LoginStore.loginWithPubkey(hexKey, LoginSessionType.PublicKey);
+      const match = Object.keys(json.names).find(n => {
+        return n.toLowerCase() === name.toLowerCase();
+      });
+      if (!match) {
+        throw new Error("Invalid nostr address");
+      }
+      const pubkey = json.names[match];
+
+      if (json.nip46) {
+        const bunkerRelays = json.nip46[json.names["_"]];
+        const nip46 = new Nip46Signer(`bunker://${pubkey}?relay=${encodeURIComponent(bunkerRelays[0])}`);
+        nip46.on("oauth", url => {
+          window.open(url, CONFIG.appNameCapitalized, "width=600,height=800,popup=yes");
+        });
+        await nip46.init();
+
+        const loginPubkey = await nip46.getPubKey();
+        LoginStore.loginWithPubkey(
+          loginPubkey,
+          LoginSessionType.Nip46,
+          undefined,
+          nip46.relays,
+          await pin(unwrap(nip46.privateKey)),
+        );
+        nip46.close();
+      } else {
+        LoginStore.loginWithPubkey(pubkey, LoginSessionType.PublicKey);
+      }
     } else if (key.startsWith("bunker://")) {
       const nip46 = new Nip46Signer(key);
       await nip46.init();

packages/shared/src/utils.ts

@@ -160,10 +160,13 @@ export function bech32ToText(str: string) {
   return new TextDecoder().decode(Uint8Array.from(buf));
 }
 
+export interface NostrJson {
+  names: Record<string, string>;
+  relays?: Record<string, Array<string>>;
+  nip46?: Record<string, Array<string>>;
+}
+
 export async function fetchNip05Pubkey(name: string, domain: string, timeout = 2_000): Promise<string | undefined> {
-  interface NostrJson {
-    names: Record<string, string>;
-  }
   if (!name || !domain) {
     return undefined;
   }
@@ -182,6 +185,21 @@ export async function fetchNip05Pubkey(name: string, domain: string, timeout = 2
   return undefined;
 }
 
+export async function fetchNostrAddress(name: string, domain: string, timeout = 2_000): Promise<NostrJson | undefined> {
+  if (!name || !domain) {
+    return undefined;
+  }
+  try {
+    const res = await fetch(`https://${domain}/.well-known/nostr.json?name=${encodeURIComponent(name)}`, {
+      signal: AbortSignal.timeout(timeout),
+    });
+    return await res.json() as NostrJson;
+  } catch {
+    // ignored
+  }
+  return undefined;
+}
+
 export function removeUndefined<T>(v: Array<T | undefined>) {
   return v.filter(a => a != undefined).map(a => unwrap(a));
 }
@@ -208,7 +226,7 @@ export function normalizeReaction(content: string) {
   }
 }
 
-export class OfflineError extends Error {}
+export class OfflineError extends Error { }
 
 export function throwIfOffline() {
   if (isOffline()) {

packages/shared/tsconfig.json

@@ -8,6 +8,7 @@
     "module": "ESNext",
     "strict": true,
     "declaration": true,
+    "declarationMap": true,
     "inlineSourceMap": true,
     "outDir": "dist",
     "skipLibCheck": true

packages/system/src/impl/nip46.ts

@@ -8,6 +8,7 @@ import { EventSigner, PrivateKeySigner } from "../signer";
 import { NostrEvent } from "../nostr";
 import { EventBuilder } from "../event-builder";
 import EventKind from "../event-kind";
+import EventEmitter from "eventemitter3";
 
 const NIP46_KIND = 24_133;
 
@@ -31,11 +32,15 @@ interface Nip46Response {
 }
 
 interface QueueObj {
-  resolve: (o: any) => void;
+  resolve: (o: Nip46Response) => void;
   reject: (e: Error) => void;
 }
 
-export class Nip46Signer implements EventSigner {
+interface Nip46Events {
+  oauth: (url: string) => void;
+}
+
+export class Nip46Signer extends EventEmitter<Nip46Events> implements EventSigner {
   #conn?: Connection;
   #relay: string;
   #localPubkey: string;
@@ -47,10 +52,16 @@ export class Nip46Signer implements EventSigner {
   #proto: string;
   #didInit: boolean = false;
 
+  /**
+   * Start NIP-46 connection
+   * @param config bunker/nostrconnect://{npub/hex-pubkey}?relay={websocket-url}#{token-hex}
+   * @param insideSigner 
+   */
   constructor(config: string, insideSigner?: EventSigner) {
+    super();
     const u = new URL(config);
     this.#proto = u.protocol;
-    this.#localPubkey = u.pathname.substring(2);
+    this.#localPubkey = u.hostname || u.pathname.substring(2);
 
     if (u.hash.length > 1) {
       this.#token = u.hash.substring(1);
@@ -98,16 +109,35 @@ export class Nip46Signer implements EventSigner {
               "#p": [this.#localPubkey],
             },
           ],
-          () => {},
+          () => { },
         );
 
         if (isBunker) {
-          await this.#connect(unwrap(this.#remotePubkey));
-          resolve();
+          const rsp = await this.#connect(unwrap(this.#remotePubkey));
+          if (rsp.result === "auth_url") {
+            // re-insert the command into queue for result of oAuth flow
+            this.#commandQueue.set(rsp.id, {
+              resolve: async (o: Nip46Response) => {
+                if (o.result === "ack") {
+                  resolve();
+                } else {
+                  reject(o.error);
+                }
+              },
+              reject,
+            });
+            this.emit("oauth", rsp.error);
+          } else if (rsp.result === "ack") {
+            resolve();
+          } else {
+            reject(rsp.error);
+          }
         } else {
           this.#commandQueue.set("connect", {
             reject,
-            resolve,
+            resolve: () => {
+              resolve();
+            },
           });
         }
       });
@@ -127,21 +157,24 @@ export class Nip46Signer implements EventSigner {
   }
 
   async describe() {
-    return await this.#rpc<Array<string>>("describe", []);
+    const rsp = await this.#rpc("describe", []);
+    return rsp.result as Array<string>;
   }
 
   async getPubKey() {
-    return await this.#rpc<string>("get_public_key", []);
+    const rsp = await this.#rpc("get_public_key", []);
+    return rsp.result as string;
   }
 
   async nip4Encrypt(content: string, otherKey: string) {
-    return await this.#rpc<string>("nip04_encrypt", [otherKey, content]);
+    const rsp = await this.#rpc("nip04_encrypt", [otherKey, content]);
+    return rsp.result as string;
   }
 
   async nip4Decrypt(content: string, otherKey: string) {
-    const payload = await this.#rpc<string>("nip04_decrypt", [otherKey, content]);
+    const rsp = await this.#rpc("nip04_decrypt", [otherKey, content]);
     try {
-      return JSON.parse(payload)[0];
+      return JSON.parse(rsp.result)[0];
     } catch {
       return "<error>";
     }
@@ -156,8 +189,8 @@ export class Nip46Signer implements EventSigner {
   }
 
   async sign(ev: NostrEvent) {
-    const evStr = await this.#rpc<string>("sign_event", [JSON.stringify(ev)]);
-    return JSON.parse(evStr);
+    const rsp = await this.#rpc("sign_event", [JSON.stringify(ev)]);
+    return JSON.parse(rsp.result as string);
   }
 
   async #disconnect() {
@@ -169,7 +202,7 @@ export class Nip46Signer implements EventSigner {
     if (this.#token) {
       connectParams.push(this.#token);
     }
-    return await this.#rpc<string>("connect", connectParams);
+    return await this.#rpc("connect", connectParams);
   }
 
   async #onReply(e: NostrEvent) {
@@ -199,11 +232,11 @@ export class Nip46Signer implements EventSigner {
       throw new Error("No pending command found");
     }
 
-    pending.resolve(reply);
+    pending.resolve(reply as Nip46Response);
     this.#commandQueue.delete(reply.id);
   }
 
-  async #rpc<T>(method: string, params: Array<any>) {
+  async #rpc(method: string, params: Array<any>) {
     if (!this.#didInit) {
       await this.init();
     }
@@ -216,10 +249,10 @@ export class Nip46Signer implements EventSigner {
     } as Nip46Request;
 
     this.#sendCommand(payload, unwrap(this.#remotePubkey));
-    return await new Promise<T>((resolve, reject) => {
+    return await new Promise<Nip46Response>((resolve, reject) => {
       this.#commandQueue.set(payload.id, {
         resolve: async (o: Nip46Response) => {
-          resolve(o.result as T);
+          resolve(o);
         },
         reject,
       });

packages/system/tsconfig.json

@@ -8,6 +8,7 @@
     "module": "ESNext",
     "strict": true,
     "declaration": true,
+    "declarationMap": true,
     "inlineSourceMap": true,
     "outDir": "dist",
     "skipLibCheck": true