feat: nsecbunker

packages/app/src/Feed/EventPublisher.ts

@@ -1,15 +1,6 @@
-import { useMemo } from "react";
 import useLogin from "Hooks/useLogin";
-import { EventPublisher, Nip7Signer } from "@snort/system";
 
 export default function useEventPublisher() {
-  const { publicKey, privateKey } = useLogin();
+  const { publisher } = useLogin();
-  return useMemo(() => {
+  return publisher;
-    if (privateKey) {
-      return EventPublisher.privateKey(privateKey);
-    }
-    if (publicKey) {
-      return new EventPublisher(new Nip7Signer(), publicKey);
-    }
-  }, [publicKey, privateKey]);
 }

packages/app/src/Hooks/useLoginHandler.tsx

@@ -1,7 +1,7 @@
 import { useIntl } from "react-intl";
 
 import { EmailRegex, MnemonicRegex } from "Const";
-import { LoginStore } from "Login";
+import { LoginSessionType, LoginStore } from "Login";
 import { generateBip39Entropy, entropyToPrivateKey } from "nip6";
 import { getNip05PubKey } from "Pages/LoginPage";
 import { bech32ToHex } from "SnortUtils";
@@ -28,10 +28,10 @@ export default function useLoginHandler() {
       }
     } else if (key.startsWith("npub")) {
       const hexKey = bech32ToHex(key);
-      LoginStore.loginWithPubkey(hexKey);
+      LoginStore.loginWithPubkey(hexKey, LoginSessionType.PublicKey);
     } else if (key.match(EmailRegex)) {
       const hexKey = await getNip05PubKey(key);
-      LoginStore.loginWithPubkey(hexKey);
+      LoginStore.loginWithPubkey(hexKey, LoginSessionType.PublicKey);
     } else if (key.match(MnemonicRegex)?.length === 24) {
       if (!hasSubtleCrypto) {
         throw new Error(insecureMsg);
@@ -50,7 +50,8 @@ export default function useLoginHandler() {
       await nip46.init();
 
       const loginPubkey = await nip46.getPubKey();
-      LoginStore.loginWithPubkey(loginPubkey);
+      LoginStore.loginWithPubkey(loginPubkey, LoginSessionType.Nip46, undefined, nip46.relays);
+      nip46.close();
     } else {
       throw new Error("INVALID PRIVATE KEY");
     }

packages/app/src/Login/LoginSession.ts

@@ -1,4 +1,4 @@
-import { HexKey, RelaySettings, u256 } from "@snort/system";
+import { HexKey, RelaySettings, u256, EventPublisher } from "@snort/system";
 import { UserPreferences } from "Login";
 import { SubscriptionEvent } from "Subscription";
 
@@ -10,7 +10,19 @@ interface Newest<T> {
   timestamp: number;
 }
 
+export enum LoginSessionType {
+  PrivateKey = "private_key",
+  PublicKey = "public_key",
+  Nip7 = "nip7",
+  Nip46 = "nip46",
+}
+
 export interface LoginSession {
+  /**
+   * Type of login session
+   */
+  type: LoginSessionType;
+
   /**
    * Current user private key
    */
@@ -80,4 +92,14 @@ export interface LoginSession {
    * Snort subscriptions licences
    */
   subscriptions: Array<SubscriptionEvent>;
+
+  /**
+   * Remote signer relays (NIP-46)
+   */
+  remoteSignerRelays?: Array<string>;
+
+  /**
+   * Instance event publisher
+   */
+  publisher?: EventPublisher;
 }

packages/app/src/Login/MultiAccountStore.ts

@@ -1,15 +1,16 @@
 import * as secp from "@noble/curves/secp256k1";
 import * as utils from "@noble/curves/abstract/utils";
 
-import { HexKey, RelaySettings } from "@snort/system";
+import { HexKey, RelaySettings, EventPublisher, Nip46Signer, Nip7Signer } from "@snort/system";
 import { deepClone, sanitizeRelayUrl, unwrap, ExternalStore } from "@snort/shared";
 
 import { DefaultRelays } from "Const";
-import { LoginSession } from "Login";
+import { LoginSession, LoginSessionType } from "Login";
 import { DefaultPreferences, UserPreferences } from "./Preferences";
 
 const AccountStoreKey = "sessions";
 const LoggedOut = {
+  type: "public_key",
   preferences: DefaultPreferences,
   tags: {
     item: [],
@@ -60,7 +61,8 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
     super();
     const existing = window.localStorage.getItem(AccountStoreKey);
     if (existing) {
-      this.#accounts = new Map((JSON.parse(existing) as Array<LoginSession>).map(a => [unwrap(a.publicKey), a]));
+      const logins = JSON.parse(existing);
+      this.#accounts = new Map((logins as Array<LoginSession>).map(a => [unwrap(a.publicKey), a]));
     } else {
       this.#accounts = new Map();
     }
@@ -68,6 +70,9 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
     if (!this.#activeAccount) {
       this.#activeAccount = this.#accounts.keys().next().value;
     }
+    for (const [, v] of this.#accounts) {
+      v.publisher = this.#createPublisher(v);
+    }
   }
 
   getSessions() {
@@ -85,20 +90,28 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
     }
   }
 
-  loginWithPubkey(key: HexKey, relays?: Record<string, RelaySettings>) {
+  loginWithPubkey(
+    key: HexKey,
+    type: LoginSessionType,
+    relays?: Record<string, RelaySettings>,
+    remoteSignerRelays?: Array<string>
+  ) {
     if (this.#accounts.has(key)) {
       throw new Error("Already logged in with this pubkey");
     }
     const initRelays = this.decideInitRelays(relays);
     const newSession = {
       ...LoggedOut,
+      type,
       publicKey: key,
       relays: {
         item: initRelays,
         timestamp: 1,
       },
       preferences: deepClone(DefaultPreferences),
+      remoteSignerRelays,
     } as LoginSession;
+    newSession.publisher = this.#createPublisher(newSession);
 
     this.#accounts.set(key, newSession);
     this.#activeAccount = key;
@@ -121,6 +134,7 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
     const initRelays = relays ?? Object.fromEntries(DefaultRelays.entries());
     const newSession = {
       ...LoggedOut,
+      type: LoginSessionType.PrivateKey,
       privateKey: key,
       publicKey: pubKey,
       generatedEntropy: entropy,
@@ -130,6 +144,8 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
       },
       preferences: deepClone(DefaultPreferences),
     } as LoginSession;
+    newSession.publisher = this.#createPublisher(newSession);
+
     this.#accounts.set(pubKey, newSession);
     this.#activeAccount = pubKey;
     this.#save();
@@ -157,7 +173,26 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
     const s = this.#activeAccount ? this.#accounts.get(this.#activeAccount) : undefined;
     if (!s) return LoggedOut;
 
-    return deepClone(s);
+    return s;
+  }
+
+  #createPublisher(l: LoginSession) {
+    switch (l.type) {
+      case LoginSessionType.PrivateKey: {
+        return EventPublisher.privateKey(unwrap(l.privateKey));
+      }
+      case LoginSessionType.Nip46: {
+        const relayArgs = (l.remoteSignerRelays ?? []).map(a => `relay=${encodeURIComponent(a)}`);
+        const inner = new Nip7Signer();
+        const nip46 = new Nip46Signer(`bunker://${unwrap(l.publicKey)}?${[...relayArgs].join("&")}`, inner);
+        return new EventPublisher(nip46, unwrap(l.publicKey));
+      }
+      default: {
+        if (l.publicKey) {
+          return new EventPublisher(new Nip7Signer(), l.publicKey);
+        }
+      }
+    }
   }
 
   #migrate() {
@@ -203,6 +238,18 @@ export class MultiAccountStore extends ExternalStore<LoginSession> {
       }
     }
 
+    // update session types
+    for (const [, v] of this.#accounts) {
+      if (v.privateKey) {
+        v.type = LoginSessionType.PrivateKey;
+        didMigrate = true;
+      }
+      if (!v.type) {
+        v.type = LoginSessionType.Nip7;
+        didMigrate = true;
+      }
+    }
+
     if (didMigrate) {
       console.debug("Finished migration to MultiAccountStore");
       this.#save();

packages/app/src/Pages/LoginPage.tsx

@@ -3,16 +3,22 @@ import "./LoginPage.css";
 import { CSSProperties, useEffect, useState } from "react";
 import { useNavigate } from "react-router-dom";
 import { useIntl, FormattedMessage } from "react-intl";
-import { HexKey } from "@snort/system";
+import { HexKey, Nip46Signer, PrivateKeySigner } from "@snort/system";
 
-import { bech32ToHex, unwrap } from "SnortUtils";
+import { bech32ToHex, getPublicKey, unwrap } from "SnortUtils";
 import ZapButton from "Element/ZapButton";
 import useImgProxy from "Hooks/useImgProxy";
 import Icon from "Icons/Icon";
 import useLogin from "Hooks/useLogin";
-import { generateNewLogin, LoginStore } from "Login";
+import { generateNewLogin, LoginSessionType, LoginStore } from "Login";
 import AsyncButton from "Element/AsyncButton";
 import useLoginHandler from "Hooks/useLoginHandler";
+import { secp256k1 } from "@noble/curves/secp256k1";
+import { bytesToHex } from "@noble/curves/abstract/utils";
+import Modal from "Element/Modal";
+import QrCode from "Element/QrCode";
+import Copy from "Element/Copy";
+import { delay } from "SnortUtils";
 
 interface ArtworkEntry {
   name: string;
@@ -73,6 +79,7 @@ export default function LoginPage() {
   const loginHandler = useLoginHandler();
   const hasNip7 = "nostr" in window;
   const hasSubtleCrypto = window.crypto.subtle !== undefined;
+  const [nostrConnect, setNostrConnect] = useState("");
 
   useEffect(() => {
     if (login.publicKey) {
@@ -112,7 +119,27 @@ export default function LoginPage() {
     const relays =
       "getRelays" in unwrap(window.nostr) ? await unwrap(window.nostr?.getRelays).call(window.nostr) : undefined;
     const pubKey = await unwrap(window.nostr).getPublicKey();
-    LoginStore.loginWithPubkey(pubKey, relays);
+    LoginStore.loginWithPubkey(pubKey, LoginSessionType.Nip7, relays);
+  }
+
+  async function startNip46() {
+    const meta = {
+      name: "Snort",
+      url: window.location.href,
+    };
+
+    const newKey = bytesToHex(secp256k1.utils.randomPrivateKey());
+    const relays = ["wss://relay.damus.io"].map(a => `relay=${encodeURIComponent(a)}`);
+    const connectUrl = `nostrconnect://${getPublicKey(newKey)}?${[
+      ...relays,
+      `metadata=${encodeURIComponent(JSON.stringify(meta))}`,
+    ].join("&")}`;
+    setNostrConnect(connectUrl);
+
+    const signer = new Nip46Signer(connectUrl, new PrivateKeySigner(newKey));
+    await signer.init();
+    await delay(500);
+    await signer.describe();
   }
 
   function altLogins() {
@@ -121,12 +148,25 @@ export default function LoginPage() {
     }
 
     return (
-      <button type="button" onClick={doNip07Login}>
+      <>
-        <FormattedMessage
+        <AsyncButton type="button" onClick={doNip07Login}>
-          defaultMessage="Login with Extension (NIP-07)"
+          <FormattedMessage
-          description="Login button for NIP7 key manager extension"
+            defaultMessage="Login with Extension (NIP-07)"
-        />
+            description="Login button for NIP7 key manager extension"
-      </button>
+          />
+        </AsyncButton>
+        <AsyncButton type="button" onClick={startNip46}>
+          <FormattedMessage defaultMessage="Nostr Connect (NIP-46)" description="Login button for NIP-46 signer app" />
+        </AsyncButton>
+        {nostrConnect && (
+          <Modal onClose={() => setNostrConnect("")}>
+            <div className="flex f-col">
+              <QrCode data={nostrConnect} />
+              <Copy text={nostrConnect} />
+            </div>
+          </Modal>
+        )}
+      </>
     );
   }
 
@@ -227,9 +267,9 @@ export default function LoginPage() {
             />
           </p>
           <div dir="auto" className="login-actions">
-            <button type="button" onClick={doLogin}>
+            <AsyncButton type="button" onClick={doLogin}>
               <FormattedMessage defaultMessage="Login" description="Login button" />
-            </button>
+            </AsyncButton>
             <AsyncButton onClick={() => makeRandomKey()}>
               <FormattedMessage defaultMessage="Create Account" />
             </AsyncButton>

packages/system/src/impl/nip46.ts

@@ -27,64 +27,93 @@ interface Nip46Request {
 interface Nip46Response {
     id: string
     result: any
-    error?: string
+    error: string
 }
 
 interface QueueObj {
-    resolve: (o: Nip46Response) => void;
+    resolve: (o: any) => void;
     reject: (e: Error) => void;
 }
 
 export class Nip46Signer implements EventSigner {
     #conn?: Connection;
     #relay: string;
-    #target: string;
+    #localPubkey: string;
+    #remotePubkey?: string;
     #token?: string;
     #insideSigner: EventSigner;
     #commandQueue: Map<string, QueueObj> = new Map();
     #log = debug("NIP-46");
+    #proto: string;
+    #didInit: boolean = false;
 
     constructor(config: string, insideSigner?: EventSigner) {
         const u = new URL(config);
-        this.#target = u.pathname.substring(2);
+        this.#proto = u.protocol;
+        this.#localPubkey = u.pathname.substring(2);
 
         if (u.hash.length > 1) {
             this.#token = u.hash.substring(1);
         }
-        if (this.#target.startsWith("npub")) {
+        if (this.#localPubkey.startsWith("npub")) {
-            this.#target = bech32ToHex(this.#target);
+            this.#localPubkey = bech32ToHex(this.#localPubkey);
         }
 
         this.#relay = unwrap(u.searchParams.get("relay"));
         this.#insideSigner = insideSigner ?? new PrivateKeySigner(secp256k1.utils.randomPrivateKey())
     }
 
+    get relays() {
+        return [this.#relay];
+    }
+
     async init() {
+        const isBunker = this.#proto === "bunker:";
+        if (isBunker) {
+            this.#remotePubkey = this.#localPubkey;
+            this.#localPubkey = await this.#insideSigner.getPubKey();
+        }
         return await new Promise<void>((resolve, reject) => {
             this.#conn = new Connection(this.#relay, { read: true, write: true });
             this.#conn.OnEvent = async (sub, e) => {
                 await this.#onReply(e);
             }
             this.#conn.OnConnected = async () => {
-                const insidePubkey = await this.#insideSigner.getPubKey();
                 this.#conn!.QueueReq(["REQ", "reply", {
                     kinds: [NIP46_KIND],
-                    authors: [this.#target],
+                    "#p": [this.#localPubkey]
-                    "#p": [insidePubkey]
                 }], () => { });
 
-                const rsp = await this.#connect(insidePubkey);
+                if (isBunker) {
-                if (rsp === "ack") {
+                    await this.#connect(unwrap(this.#remotePubkey));
                     resolve();
                 } else {
-                    reject();
+                    this.#commandQueue.set("connect", {
+                        reject,
+                        resolve
+                    })
                 }
             }
             this.#conn.Connect();
+            this.#didInit = true;
         })
 
     }
 
+    async close() {
+        if (this.#conn) {
+            await this.#disconnect();
+            this.#conn.CloseReq("reply");
+            this.#conn.Close();
+            this.#conn = undefined;
+            this.#didInit = false;
+        }
+    }
+
+    async describe() {
+        return await this.#rpc<Array<string>>("describe", []);
+    }
+
     async getPubKey() {
         return await this.#rpc<string>("get_public_key", []);
     }
@@ -98,7 +127,12 @@ export class Nip46Signer implements EventSigner {
     }
 
     async sign(ev: NostrEvent) {
-        return await this.#rpc<NostrEvent>("nip04_decrypt", [ev]);
+        const evStr = await this.#rpc<string>("sign_event", [JSON.stringify(ev)]);
+        return JSON.parse(evStr);
+    }
+
+    async #disconnect() {
+        return await this.#rpc("disconnect", []);
     }
 
     async #connect(pk: string) {
@@ -114,10 +148,21 @@ export class Nip46Signer implements EventSigner {
             throw new Error("Unknown event kind");
         }
 
-        const decryptedContent = await this.#insideSigner.nip4Decrypt(e.content, this.#target);
+        const decryptedContent = await this.#insideSigner.nip4Decrypt(e.content, e.pubkey);
-        const reply = JSON.parse(decryptedContent) as Nip46Response;
+        const reply = JSON.parse(decryptedContent) as Nip46Request | Nip46Response;
 
-        const pending = this.#commandQueue.get(reply.id);
+        let id = reply.id;
+        this.#log("Recv: %O", reply);
+        if ("method" in reply && reply.method === "connect") {
+            this.#remotePubkey = reply.params[0];
+            await this.#sendCommand({
+                id: reply.id,
+                result: "ack",
+                error: ""
+            }, unwrap(this.#remotePubkey));
+            id = "connect";
+        }
+        const pending = this.#commandQueue.get(id);
         if (!pending) {
             throw new Error("No pending command found");
         }
@@ -127,32 +172,38 @@ export class Nip46Signer implements EventSigner {
     }
 
     async #rpc<T>(method: string, params: Array<any>) {
+        if (!this.#didInit) {
+            await this.init();
+        }
         if (!this.#conn) throw new Error("Connection error");
 
-        const id = uuid();
         const payload = {
-            id,
+            id: uuid(),
             method,
             params,
         } as Nip46Request;
-        this.#log("Request: %O", payload);
-
-        const eb = new EventBuilder();
-        eb.kind(NIP46_KIND as EventKind)
-            .content(await this.#insideSigner.nip4Encrypt(JSON.stringify(payload), this.#target))
-            .tag(["p", this.#target]);
-
-        const evCommand = await eb.buildAndSign(this.#insideSigner);
-        await this.#conn.SendAsync(evCommand);
 
+        this.#sendCommand(payload, unwrap(this.#remotePubkey));
         return await new Promise<T>((resolve, reject) => {
-            this.#commandQueue.set(id, {
+            this.#commandQueue.set(payload.id, {
                 resolve: async (o: Nip46Response) => {
-                    this.#log("Reply: %O", o);
                     resolve(o.result as T);
                 },
                 reject,
             });
         });
     }
+
+    async #sendCommand(payload: Nip46Request | Nip46Response, target: string) {
+        if (!this.#conn) return;
+
+        const eb = new EventBuilder();
+        eb.kind(NIP46_KIND as EventKind)
+            .content(await this.#insideSigner.nip4Encrypt(JSON.stringify(payload), target))
+            .tag(["p", target]);
+
+        this.#log("Send: %O", payload);
+        const evCommand = await eb.buildAndSign(this.#insideSigner);
+        await this.#conn.SendAsync(evCommand);
+    }
 }