| 1 | use std::time::Duration; |
| 2 | |
| 3 | use termbridge::paths; |
| 4 | use termbridge::pty::Profile; |
| 5 | use termbridge::{Config, Event, Server}; |
| 6 | |
| 7 | const DEFAULT_PORT: u16 = 7681; |
| 8 | |
| 9 | fn usage() -> ! { |
| 10 | eprintln!( |
| 11 | "termbridge — loopback WebSocket bridge (security spike) |
| 12 | |
| 13 | USAGE: |
| 14 | termbridge serve [--port N] [--session NAME] |
| 15 | start the daemon |
| 16 | termbridge token print the auth token (paste into extension) |
| 17 | termbridge token --rotate generate a new token |
| 18 | termbridge pair <origin> approve an extension origin |
| 19 | termbridge unpair <origin> revoke an origin |
| 20 | termbridge list show paired origins |
| 21 | termbridge cert show the TLS certificate path + fingerprint |
| 22 | termbridge cert --regenerate make a new certificate |
| 23 | termbridge hooks print the Claude Code hook settings to install |
| 24 | termbridge hook record one hook event (reads JSON on stdin) |
| 25 | termbridge tmux print the tmux.conf line for the status glyph |
| 26 | |
| 27 | Origins look like: |
| 28 | chrome-extension://abcdefghijklmnopabcdefghijklmnop |
| 29 | moz-extension://11111111-2222-3333-4444-555555555555 |
| 30 | " |
| 31 | ); |
| 32 | std::process::exit(2) |
| 33 | } |
| 34 | |
| 35 | #[tokio::main] |
| 36 | async fn main() -> Result<(), Box<dyn std::error::Error>> { |
| 37 | let args: Vec<String> = std::env::args().skip(1).collect(); |
| 38 | let dir = paths::config_dir(); |
| 39 | |
| 40 | match args.first().map(String::as_str) { |
| 41 | Some("serve") => { |
| 42 | let port = match args.iter().position(|a| a == "--port") { |
| 43 | Some(i) => args |
| 44 | .get(i + 1) |
| 45 | .and_then(|p| p.parse().ok()) |
| 46 | .unwrap_or(DEFAULT_PORT), |
| 47 | None => DEFAULT_PORT, |
| 48 | }; |
| 49 | let session = args |
| 50 | .iter() |
| 51 | .position(|a| a == "--session") |
| 52 | .and_then(|i| args.get(i + 1)) |
| 53 | .cloned(); |
| 54 | serve(port, session).await |
| 55 | } |
| 56 | Some("token") => { |
| 57 | let token = if args.iter().any(|a| a == "--rotate") { |
| 58 | paths::generate_token(&dir)? |
| 59 | } else { |
| 60 | paths::load_or_create_token(&dir)? |
| 61 | }; |
| 62 | println!("{token}"); |
| 63 | println!("\n(from {})", paths::token_path().display()); |
| 64 | Ok(()) |
| 65 | } |
| 66 | Some("pair") => { |
| 67 | let origin = args.get(1).unwrap_or_else(|| usage()); |
| 68 | if paths::pair_origin(&dir, origin)? { |
| 69 | println!("paired: {origin}"); |
| 70 | } else { |
| 71 | println!("already paired: {origin}"); |
| 72 | } |
| 73 | Ok(()) |
| 74 | } |
| 75 | Some("unpair") => { |
| 76 | let origin = args.get(1).unwrap_or_else(|| usage()); |
| 77 | if paths::unpair_origin(&dir, origin)? { |
| 78 | println!("unpaired: {origin}"); |
| 79 | } else { |
| 80 | println!("not paired: {origin}"); |
| 81 | } |
| 82 | Ok(()) |
| 83 | } |
| 84 | Some("cert") => { |
| 85 | let id = if args.iter().any(|a| a == "--regenerate") { |
| 86 | termbridge::tls::generate(&dir)? |
| 87 | } else { |
| 88 | termbridge::tls::load_or_create(&dir)? |
| 89 | }; |
| 90 | println!("certificate: {}", dir.join(termbridge::tls::CERT_FILE).display()); |
| 91 | println!("private key: {}", dir.join(termbridge::tls::KEY_FILE).display()); |
| 92 | println!("SHA-256: {}", id.fingerprint); |
| 93 | Ok(()) |
| 94 | } |
| 95 | // Runs on every hook event, so it must be quiet and must never fail in |
| 96 | // a way Claude would surface. Any error here is a status panel that is |
| 97 | // briefly stale, which is not worth interrupting the user's session. |
| 98 | Some("hook") => { |
| 99 | let mut input = String::new(); |
| 100 | use std::io::Read; |
| 101 | let _ = std::io::stdin().read_to_string(&mut input); |
| 102 | if let Ok(event) = serde_json::from_str::<serde_json::Value>(&input) { |
| 103 | let _ = termbridge::agents::apply(&event); |
| 104 | // After the record is on disk, so the status line is computed |
| 105 | // from the same state the sidebar will read. Runs even when |
| 106 | // the event removed the record: that is what clears the glyph |
| 107 | // from a window whose Claude has gone. |
| 108 | termbridge::window_status::publish(); |
| 109 | } |
| 110 | Ok(()) |
| 111 | } |
| 112 | Some("hooks") => { |
| 113 | let exe = std::env::current_exe() |
| 114 | .map(|p| p.display().to_string()) |
| 115 | .unwrap_or_else(|_| "termbridge".into()); |
| 116 | println!( |
| 117 | "Add this to ~/.claude/settings.json (merge with any hooks you already have):\n" |
| 118 | ); |
| 119 | println!("{}", termbridge::agents::hook_settings(&exe)); |
| 120 | println!( |
| 121 | "\nRecords are written to {}\n\ |
| 122 | Claude sessions then show up in the sidebar with their state and permission mode.", |
| 123 | termbridge::agents::dir().display() |
| 124 | ); |
| 125 | Ok(()) |
| 126 | } |
| 127 | Some("tmux") => { |
| 128 | println!( |
| 129 | "Add this to ~/.tmux.conf, then `tmux source-file ~/.tmux.conf`:\n" |
| 130 | ); |
| 131 | print!("{}", termbridge::window_status::tmux_conf()); |
| 132 | println!( |
| 133 | "\nThe hooks are what set it, so install those first if you haven't:\n\ |
| 134 | \x20 termbridge hooks" |
| 135 | ); |
| 136 | Ok(()) |
| 137 | } |
| 138 | Some("list") => { |
| 139 | let origins = paths::load_paired_origins(&dir); |
| 140 | if origins.is_empty() { |
| 141 | println!( |
| 142 | "no paired origins ({})", |
| 143 | paths::paired_origins_path().display() |
| 144 | ); |
| 145 | } else { |
| 146 | for o in origins { |
| 147 | println!("{o}"); |
| 148 | } |
| 149 | } |
| 150 | Ok(()) |
| 151 | } |
| 152 | _ => usage(), |
| 153 | } |
| 154 | } |
| 155 | |
| 156 | async fn serve(port: u16, session: Option<String>) -> Result<(), Box<dyn std::error::Error>> { |
| 157 | let dir = paths::config_dir(); |
| 158 | let token = paths::load_or_create_token(&dir)?; |
| 159 | let paired = paths::load_paired_origins(&dir); |
| 160 | |
| 161 | let identity = termbridge::tls::load_or_create(&dir)?; |
| 162 | let mut config = Config::new(token, paired.clone()); |
| 163 | config.auth_timeout = Duration::from_secs(3); |
| 164 | config.tls = Some(termbridge::tls::acceptor(&identity)?); |
| 165 | let pinned = session |
| 166 | .as_deref() |
| 167 | .and_then(termbridge::pty::valid_session_name); |
| 168 | let default_session = pinned |
| 169 | .clone() |
| 170 | .unwrap_or_else(|| termbridge::pty::DEFAULT_SESSION.to_string()); |
| 171 | config.default_session = default_session.clone(); |
| 172 | // A pinned --session is a choice; without one, a lone existing session is |
| 173 | // a better guess than a fresh "browser" beside it. |
| 174 | config.adopt_sole_session = pinned.is_none(); |
| 175 | config.profile = if Profile::tmux_available() { |
| 176 | Profile::tmux(&default_session) |
| 177 | } else { |
| 178 | eprintln!("warning: tmux not found on PATH — falling back to a plain shell."); |
| 179 | eprintln!(" Sessions will NOT survive closing the sidebar."); |
| 180 | Profile::shell_fallback() |
| 181 | }; |
| 182 | let profile = config.profile.clone(); |
| 183 | let config_adopts_sole = config.adopt_sole_session && profile.program == "tmux"; |
| 184 | |
| 185 | let mut server = Server::start(config, port).await?; |
| 186 | println!("termbridge listening on wss://{a} (ws:// also accepted on the same port)", a = server.addr()); |
| 187 | println!("running: {} {}", profile.program, profile.args.join(" ")); |
| 188 | let existing = termbridge::pty::list_sessions(&profile.tmux_global_args()); |
| 189 | if !existing.is_empty() { |
| 190 | println!("tmux sessions available: {}", existing.join(", ")); |
| 191 | } |
| 192 | if config_adopts_sole { |
| 193 | match existing.as_slice() { |
| 194 | [only] => println!("joining the only existing session: {only}"), |
| 195 | _ => println!("new clients start in session: {default_session}"), |
| 196 | } |
| 197 | } |
| 198 | println!("token: {}", paths::token_path().display()); |
| 199 | println!("cert: SHA-256 {}", identity.fingerprint); |
| 200 | println!( |
| 201 | "\nFirst time only — the certificate is self-signed, so trust it once:\n\ |
| 202 | \n open https://{a}/ and accept the warning\n", |
| 203 | a = server.addr() |
| 204 | ); |
| 205 | if paired.is_empty() { |
| 206 | println!( |
| 207 | "\nNo origins paired yet — every connection will be refused.\n\ |
| 208 | Load the extension, copy its origin from the sidebar, then run:\n\ |
| 209 | \n termbridge pair <origin>\n" |
| 210 | ); |
| 211 | } else { |
| 212 | println!("paired origins: {}", paired.join(", ")); |
| 213 | } |
| 214 | |
| 215 | while let Some(event) = server.next_event().await { |
| 216 | match event { |
| 217 | Event::Accepted { origin } => println!("[accept] {origin}"), |
| 218 | Event::Rejected { origin, why, detail } => { |
| 219 | let o = origin.unwrap_or_else(|| "<none>".into()); |
| 220 | println!("[reject] {o}: {}", why.reason()); |
| 221 | if let Some(d) = detail { |
| 222 | println!(" cause: {d}"); |
| 223 | } |
| 224 | match why { |
| 225 | termbridge::auth::Denied::UnpairedOrigin => { |
| 226 | println!(" to approve: termbridge pair {o}"); |
| 227 | } |
| 228 | // By far the most common first-run mistake: the extension |
| 229 | // was loaded but nobody ever pasted a token into it. The |
| 230 | // wire-level reason ("invalid token") does not say where |
| 231 | // the right token comes from, so spell it out. |
| 232 | termbridge::auth::Denied::BadToken |
| 233 | | termbridge::auth::Denied::MalformedAuth |
| 234 | | termbridge::auth::Denied::AuthTimeout => { |
| 235 | println!( |
| 236 | " the extension did not present the token in {}", |
| 237 | paths::token_path().display() |
| 238 | ); |
| 239 | println!( |
| 240 | " to fix: run termbridge token and paste the 64 hex chars\n\ |
| 241 | \x20 into the sidebar's settings → Token field" |
| 242 | ); |
| 243 | } |
| 244 | _ => {} |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | } |
| 249 | Ok(()) |
| 250 | } |