feat: Sign using NIP-07

Signed-off-by: Awiteb <a@4rs.nl>

CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Support signing using NIP-46 bunker - by Awiteb
 - Keyring the secret key `n34 config keyring --enable` - by Awiteb
 - New flag to `patch apply and merge` to mention patches - by Awiteb
+- Sign using NIP-07 - by Awiteb
 
 ### Dependencies
 

Cargo.lock

@@ -837,6 +837,12 @@ version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6dbf3de79e51f3d586ab4cb9d5c3e2c14aa28ed23d180cf89b4df0454a69cc87"
 
+[[package]]
+name = "httpdate"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "df3b46402a9d5adb4c86a0cf463f42e19994e3ee891101b1841f30a545cb49a9"
+
 [[package]]
 name = "hyper"
 version = "1.6.0"
@@ -850,6 +856,7 @@ dependencies = [
  "http",
  "http-body",
  "httparse",
+ "httpdate",
  "itoa",
  "pin-project-lite",
  "smallvec",
@@ -1235,6 +1242,7 @@ dependencies = [
  "either",
  "futures",
  "nostr",
+ "nostr-browser-signer-proxy",
  "nostr-connect",
  "nostr-keyring",
  "nostr-sdk",
@@ -1279,6 +1287,25 @@ dependencies = [
  "url",
 ]
 
+[[package]]
+name = "nostr-browser-signer-proxy"
+version = "0.43.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "36272167bc7aa8b87d0638675d1b0fd7bff04eb6ab49f97303229a06a7bbc849"
+dependencies = [
+ "atomic-destructor",
+ "bytes",
+ "http-body-util",
+ "hyper",
+ "hyper-util",
+ "nostr",
+ "serde",
+ "serde_json",
+ "tokio",
+ "tracing",
+ "uuid",
+]
+
 [[package]]
 name = "nostr-connect"
 version = "0.43.0"
@@ -2494,6 +2521,18 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "uuid"
+version = "1.17.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3cf4199d1e5d15ddd86a694e4d0dffa9c323ce759fea589f00fef9d81cc1931d"
+dependencies = [
+ "getrandom 0.3.3",
+ "js-sys",
+ "serde",
+ "wasm-bindgen",
+]
+
 [[package]]
 name = "valuable"
 version = "0.1.1"

Cargo.toml

@@ -29,18 +29,19 @@ nostr-sdk     = { version = "0.43.0", default-features = false }
 serde         = { version = "1.0.219", features = ["derive"] }
 tokio         = { version = "1.47.1", features = ["macros", "rt-multi-thread"] }
 
-chrono             = "0.4.41"
-convert_case       = "0.8.0"
-dirs               = "6.0.0"
-easy-ext           = "1.0.2"
-either             = "1.15.0"
-futures            = "0.3.31"
-regex              = "1.11.1"
-tempfile           = "3.20.0"
-thiserror          = "2.0.12"
-toml               = "0.9.4"
-tracing            = "0.1.41"
-tracing-subscriber = "0.3.19"
+chrono                     = "0.4.41"
+convert_case               = "0.8.0"
+dirs                       = "6.0.0"
+easy-ext                   = "1.0.2"
+either                     = "1.15.0"
+futures                    = "0.3.31"
+nostr-browser-signer-proxy = "0.43.0"
+regex                      = "1.11.1"
+tempfile                   = "3.20.0"
+thiserror                  = "2.0.12"
+toml                       = "0.9.4"
+tracing                    = "0.1.41"
+tracing-subscriber         = "0.3.19"
 
 [profile.release]
 lto       = "fat"

README.md

@@ -26,7 +26,7 @@ details, see the following section.
 - [X] Proof of Work ([NIP-13])
 - [X] `nostr:` URI scheme, in the issue/reply content ([NIP-21])
 - [X] Signing using bunker ([NIP-46])
-- [ ] Signing using [NIP-07] proxy ([nostr-browser-signer-proxy])
+- [X] Signing using [NIP-07] proxy ([nostr-browser-signer-proxy])
 - [ ] Code Snippets ([NIP-C0])
 - [X] In device relays and repos bookmark (`sets` command)
 

docs/SUMMARY.md

@@ -9,6 +9,7 @@
   - [Manage Configuration](config/README.md)
     - [Default PoW Difficulty](config/pow.md)
     - [Fallback Relays](config/relays.md)
+    - [NIP-07 Browser Signer Proxy](config/nip07.md)
     - [NIP-46 Bunker](config/bunker.md)
     - [Secret Key Keyring](config/keyring.md)
   - [Manage Repositories](repo/README.md)

docs/commands.md

@@ -8,6 +8,9 @@ The `n34` command-line tool accepts the following options:
   signing events.
 -   `-b`, `--bunker-url`: The URL of a NIP-46 bunker service used for remote
   signing of events.
+-   `-7`, `--nip07`: Enables signing events using the browser's NIP-07
+  extension. Listens on `127.0.0.1:51034`. You can configure the address with `n34
+  config nip07`
 -   `-r`, `--relays`: A relay to read from and write to. This option can be
   specified multiple times to connect to several relays.
 -   `--pow`: Sets the Proof of Work difficulty required when creating events.

docs/config/nip07.md

@@ -0,0 +1,22 @@
+# NIP-07 Browser Signer Proxy
+
+> `n34 config nip07`
+
+**Usage:**
+```
+Manage the NIP-07 browser signer proxy by enabling or disabling it and configuring the `ip:port` address.
+
+Usage: n34 config nip07 [OPTIONS] <--enable|--disable>
+
+Options:
+      --enable       Enable NIP-07 as the default signer
+      --disable      Disable NIP-07 as the default signer
+      --addr <ADDR>  Set the `ip:port` for the browser signer proxy (default: 127.0.0.1:51034)
+```
+
+Use [NIP-07] (Browser Extension Signer) as your default signer. This is achieved
+by running a proxy at the specified `ADDR`, which defaults to `127.0.0.1:51034`.
+The proxy forwards `n34` requests to the browser signer and relays the responses
+back.
+
+[NIP-07]: https://github.com/nostr-protocol/nips/blob/master/07.md

docs/index.html

@@ -390,7 +390,7 @@
                 <span class="feature-text">Signing using bunker (<a href="https://github.com/nostr-protocol/nips/blob/master/46.md" target="_blank" rel="noreferrer">NIP-46</a>)</span>
               </li>
               <li>
-                <span class="feature-check pending"></span>
+                <span class="feature-check completed"></span>
                 <span class="feature-text pending">Signing using <a href="https://github.com/nostr-protocol/nips/blob/master/07.md" target="_blank" rel="noreferrer">NIP-07</a> proxy (<a href="https://crates.io/crates/nostr-browser-signer-proxy" target="_blank" rel="noreferrer">nostr-browser-signer-proxy</a>)</span>
               </li>
               <li>

src/cli/commands/config/mod.rs

@@ -18,6 +18,8 @@
 mod bunker;
 /// `config keyring` subcommand
 mod keyring;
+/// `config nip07` subcommand
+mod nip07;
 /// `config pow` subcommand
 mod pow;
 /// `config relays` subcommand
@@ -27,6 +29,7 @@ use clap::Subcommand;
 
 use self::bunker::BunkerArgs;
 use self::keyring::KeyringArgs;
+use self::nip07::Nip07Args;
 use self::pow::PowArgs;
 use self::relays::RelaysArgs;
 use super::CliOptions;
@@ -45,10 +48,13 @@ pub enum ConfigSubcommands {
     /// Managing the secret key keyring, including enabling, disabling, or
     /// resetting it.
     Keyring(KeyringArgs),
+    /// Controls the NIP-07 browser signer proxy, turning it on or off, and
+    /// configures the `ip:port` address.
+    Nip07(Nip07Args),
 }
 
 impl CommandRunner for ConfigSubcommands {
     async fn run(self, options: CliOptions) -> N34Result<()> {
-        crate::run_command!(self, options, & Pow Relays Bunker Keyring)
+        crate::run_command!(self, options, & Pow Relays Bunker Keyring Nip07)
     }
 }

src/cli/commands/config/nip07.rs

@@ -0,0 +1,58 @@
+// n34 - A CLI to interact with NIP-34 and other stuff related to codes in nostr
+// Copyright (C) 2025 Awiteb <a@4rs.nl>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://gnu.org/licenses/gpl-3.0.html>.
+
+use std::net::SocketAddr;
+
+use clap::{ArgGroup, Args};
+
+use crate::{
+    cli::{CliOptions, options_state::DEFAULT_NIP07_PROXY_ADDR, traits::CommandRunner},
+    error::N34Result,
+};
+
+#[derive(Args, Debug)]
+#[clap(
+    group(
+        ArgGroup::new("options")
+            .required(true)
+    )
+)]
+pub struct Nip07Args {
+    /// Enable NIP-07 as the default signer.
+    #[arg(long, group = "options")]
+    enable:  bool,
+    /// Disable NIP-07 as the default signer.
+    #[arg(long, group = "options", group = "disable_options")]
+    disable: bool,
+    /// Set the default `ip:port` for the browser signer proxy.
+    #[arg(long, group = "disable_options")]
+    addr:    Option<SocketAddr>,
+}
+
+impl CommandRunner for Nip07Args {
+    const NEED_SIGNER: bool = false;
+
+    async fn run(self, mut options: CliOptions) -> N34Result<()> {
+        if self.enable {
+            let addr = self.addr.unwrap_or(DEFAULT_NIP07_PROXY_ADDR);
+            options.config.nip07 = Some(addr)
+        } else {
+            options.config.nip07 = None
+        }
+
+        options.config.dump()
+    }
+}

src/cli/commands/mod.rs

@@ -31,7 +31,7 @@ use std::fmt;
 use std::sync::Arc;
 use std::time::Duration;
 
-use clap::{ArgGroup, Args, Parser};
+use clap::{Args, Parser};
 use nostr::key::{Keys, PublicKey, SecretKey};
 use nostr::nips::nip46::NostrConnectURI;
 use nostr::signer::{IntoNostrSigner, NostrSigner};
@@ -44,6 +44,7 @@ use self::reply::ReplyArgs;
 use self::repo::RepoSubcommands;
 use self::sets::SetsSubcommands;
 use super::CliConfig;
+use super::options_state::OptionsState;
 use super::types::RelayOrSet;
 use super::{parsers, traits::CommandRunner};
 use crate::cli::Cli;
@@ -59,21 +60,18 @@ pub const DEFAULT_FALLBACK_PATH: &str = "I_DO_NOT_KNOW_WHY_CLAP_DO_NOT_SUPPORT_L
 const BUNKER_TIMEOUT: Duration = Duration::from_secs(60 * 3);
 
 /// The command-line interface options
-#[derive(Args, Clone)]
-#[clap(
-    group(
-        ArgGroup::new("signer")
-            .args(&["secret_key", "bunker_url"])
-            .required(false)
-    )
-)]
+#[derive(Args)]
 pub struct CliOptions {
     /// Your Nostr secret key
-    #[arg(short, long)]
+    #[arg(short, long, group = "signer")]
     pub secret_key: Option<SecretKey>,
     /// NIP-46 bunker url used for signing events
-    #[arg(short, long, value_parser=parsers::parse_bunker_url)]
+    #[arg(short, long, group = "signer", value_parser = parsers::parse_bunker_url)]
     pub bunker_url: Option<NostrConnectURI>,
+    /// Enables signing events using the browser's NIP-07 extension. Listens on
+    /// `127.0.0.1:51034`.
+    #[arg(short = '7', long, group = "signer")]
+    pub nip07:      bool,
     /// Fallbacks relay to write and read from it. Multiple relays can be
     /// passed.
     #[arg(short, long)]
@@ -86,6 +84,10 @@ pub struct CliOptions {
          hide_default_value = true, value_parser = parsers::parse_config_path
      )]
     pub config:     CliConfig,
+    /// The state of options. Some values that are used by them but should not
+    /// be entered via the CLI
+    #[arg(skip)]
+    pub state:      OptionsState,
 }
 
 /// N34 commands
@@ -124,7 +126,7 @@ pub enum Commands {
 impl CliOptions {
     /// Gets the public key of the user.
     pub async fn pubkey(&self) -> N34Result<PublicKey> {
-        let Some(signer) = self.signer()? else {
+        let Some(signer) = self.signer().await? else {
             unreachable!(
                 "This method should only be called when a signer is required. If this panic \
                  occurs, it indicates a bug where the command failed to properly require a signer \
@@ -136,10 +138,21 @@ impl CliOptions {
     }
 
     /// Returns the signer
-    pub fn signer(&self) -> N34Result<Option<Arc<dyn NostrSigner + 'static>>> {
-        if self.config.keyring_secret_key {
+    pub async fn signer(&self) -> N34Result<Option<Arc<dyn NostrSigner + 'static>>> {
+        if self.nip07 {
+            self.state.browser_signer_proxy.start().await?;
+
+            println!(
+                "Browser signer proxy started at: {}",
+                self.state.browser_signer_proxy.url()
+            );
+
+            // FIXME: Use `BrowserSignerProxy::is_session_active` after it release
+            // nostr@0.44.0
+            tokio::time::sleep(Duration::from_secs(10)).await;
+
             return Ok(Some(
-                Cli::user_keypair(self.secret_key.clone())?.into_nostr_signer(),
+                self.state.browser_signer_proxy.clone().into_nostr_signer(),
             ));
         }
 

src/cli/config.rs

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://gnu.org/licenses/gpl-3.0.html>.
 
-use std::{collections::HashSet, fs, path::PathBuf};
+use std::{collections::HashSet, fs, net::SocketAddr, path::PathBuf};
 
 use nostr::{
     nips::{nip19::Nip19Coordinate, nip46::NostrConnectURI},
@@ -76,6 +76,9 @@ pub struct CliConfig {
     /// Whether to use the system keyring to store the secret key.
     #[serde(default)]
     pub keyring_secret_key: bool,
+    /// Signs events using the browser's NIP-07 extension.
+    #[serde(default)]
+    pub nip07:              Option<SocketAddr>,
 }
 
 /// A named group of repositories and relays.

src/cli/mod.rs

@@ -24,6 +24,8 @@ pub mod config;
 pub mod defaults;
 /// Macros for CLI application.
 pub mod macros;
+/// Represents the state used for CLI options.
+pub mod options_state;
 /// CLI arguments parsers
 pub mod parsers;
 /// CLI traits
@@ -31,10 +33,13 @@ pub mod traits;
 /// Common helper types used throughout the CLI.
 pub mod types;
 
+
 use clap::Parser;
 use clap_verbosity_flag::Verbosity;
 use nostr::key::Keys;
 use nostr::key::SecretKey;
+use nostr_browser_signer_proxy::BrowserSignerProxy;
+use nostr_browser_signer_proxy::BrowserSignerProxyOptions;
 use nostr_keyring::KeyringError;
 use nostr_keyring::NostrKeyring;
 use types::RelayOrSet;
@@ -42,6 +47,7 @@ use types::RelayOrSet;
 pub use self::commands::*;
 pub use self::config::*;
 use self::traits::CommandRunner;
+use crate::cli::options_state::BROWSER_SIGNER_PROXY_TIMEOUT;
 use crate::error::N34Error;
 use crate::error::N34Result;
 use crate::nostr_utils::traits::NostrKeyringErrorUtils;
@@ -143,10 +149,29 @@ pub fn post_cli(mut cli: Cli) -> N34Result<Cli> {
         cli.options.relays = relays.iter().cloned().map(RelayOrSet::Relay).collect();
     }
 
-    if cli.options.bunker_url.is_none()
-        && let Some(bunker_url) = &cli.options.config.bunker_url
+    // Automatically sets the signer based on the configuration if no signer
+    // is provided.
+    if !cli.options.nip07
+        && cli.options.bunker_url.is_none()
+        && (cli.options.secret_key.is_none() || cli.options.config.keyring_secret_key)
     {
-        cli.options.bunker_url = Some(bunker_url.clone());
+        if let Some(addr) = cli.options.config.nip07 {
+            cli.options.nip07 = true;
+            cli.options.state.browser_signer_proxy = BrowserSignerProxy::new(
+                BrowserSignerProxyOptions::default()
+                    .timeout(BROWSER_SIGNER_PROXY_TIMEOUT)
+                    .ip_addr(addr.ip())
+                    .port(addr.port()),
+            );
+        } else if let Some(bunker_url) = &cli.options.config.bunker_url {
+            cli.options.bunker_url = Some(bunker_url.clone());
+        } else if cli.options.config.keyring_secret_key {
+            cli.options.secret_key = Some(
+                Cli::user_keypair(cli.options.secret_key)?
+                    .secret_key()
+                    .clone(),
+            );
+        }
     }
 
     Ok(cli)

src/cli/options_state.rs

@@ -0,0 +1,56 @@
+// n34 - A CLI to interact with NIP-34 and other stuff related to codes in nostr
+// Copyright (C) 2025 Awiteb <a@4rs.nl>
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://gnu.org/licenses/gpl-3.0.html>.
+
+use std::{
+    net::{Ipv4Addr, SocketAddr, SocketAddrV4},
+    time::Duration,
+};
+
+use nostr_browser_signer_proxy::{BrowserSignerProxy, BrowserSignerProxyOptions};
+
+/// The default socket address used for the NIP-07 signer proxy, set to
+/// localhost on port 51034.
+pub const DEFAULT_NIP07_PROXY_ADDR: SocketAddr =
+    SocketAddr::V4(SocketAddrV4::new(Ipv4Addr::LOCALHOST, 51034));
+
+/// How long to wait for the proxy response (3 minutes).
+pub const BROWSER_SIGNER_PROXY_TIMEOUT: Duration = Duration::from_secs(60 * 3);
+
+
+/// Represents the state used for CLI options.
+pub struct OptionsState {
+    /// The browser signer proxy, will be used if `--nip07` is enabled
+    pub browser_signer_proxy: BrowserSignerProxy,
+}
+
+impl Default for OptionsState {
+    fn default() -> Self {
+        Self {
+            browser_signer_proxy: default_browser_signer_proxy(),
+        }
+    }
+}
+
+/// Build the default browser signer proxy
+#[inline]
+fn default_browser_signer_proxy() -> BrowserSignerProxy {
+    BrowserSignerProxy::new(
+        BrowserSignerProxyOptions::default()
+            .timeout(BROWSER_SIGNER_PROXY_TIMEOUT)
+            .ip_addr(DEFAULT_NIP07_PROXY_ADDR.ip())
+            .port(DEFAULT_NIP07_PROXY_ADDR.port()),
+    )
+}

src/cli/parsers.rs

@@ -75,8 +75,8 @@ pub fn parse_config_path(config_path: &str) -> N34Result<CliConfig> {
     CliConfig::load(path)
 }
 
-// Parses a bunker URL and checks if it's a valid Nostr Connect URI.
-// Returns an error if the URL is not a valid bunker URL.
+/// Parses a bunker URL and checks if it's a valid Nostr Connect URI.
+/// Returns an error if the URL is not a valid bunker URL.
 pub fn parse_bunker_url(bunker_url: &str) -> N34Result<NostrConnectURI> {
     match NostrConnectURI::parse(bunker_url) {
         Ok(url) if url.is_bunker() => Ok(url),

src/error.rs

@@ -14,7 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with this program. If not, see <https://gnu.org/licenses/gpl-3.0.html>.
 
-use std::process::ExitCode;
+use std::{net::AddrParseError, process::ExitCode};
 
 use nostr::{
     event::{Kind, builder::Error as EventBuilderError},
@@ -47,6 +47,10 @@ pub enum N34Error {
     Io(#[from] std::io::Error),
     #[error("Signer Error: {0}")]
     SignerError(#[from] SignerError),
+    #[error("Invalid Browser Signer Proxy Address: {0}")]
+    Addr(#[from] AddrParseError),
+    #[error("Browser Signer Proxy Error: {0}")]
+    BrowserSignerProxy(#[from] nostr_browser_signer_proxy::Error),
     #[error("Keyring error: {0}")]
     Keyring(#[from] nostr_keyring::Error),
     #[error("{0}")]
@@ -92,8 +96,8 @@ pub enum N34Error {
     #[error("One naddr is required for this command")]
     EmptyNaddrs,
     #[error(
-        "This command requires a signer to sign events. Use `--secret-key` or `--bunker-url` to \
-         provide a signer"
+        "This command requires a signer to sign events. Use `--secret-key`, `--nip07` or \
+         `--bunker-url` to provide a signer"
     )]
     SignerRequired,
     #[error(

src/nostr_utils/mod.rs

@@ -114,7 +114,7 @@ impl NostrClient {
         let mut client_builder =
             Client::builder().opts(ClientOptions::new().verify_subscriptions(true));
 
-        if let Ok(Some(signer)) = options.signer() {
+        if let Ok(Some(signer)) = options.signer().await {
             client_builder = client_builder.signer(signer);
         }