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[PM-14863] Force unlock when keys are cleared / on first unlock and fix account switching behavior #11994

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Dec 2, 2024
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2 changes: 1 addition & 1 deletion apps/desktop/desktop_native/Cargo.lock

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40 changes: 20 additions & 20 deletions apps/desktop/desktop_native/core/Cargo.toml
Original file line number Diff line number Diff line change
Expand Up @@ -10,22 +10,22 @@ default = ["sys"]
manual_test = []

sys = [
"dep:widestring",
"dep:windows",
"dep:core-foundation",
"dep:security-framework",
"dep:security-framework-sys",
"dep:gio",
"dep:libsecret",
"dep:zbus",
"dep:zbus_polkit",
"dep:widestring",
"dep:windows",
"dep:core-foundation",
"dep:security-framework",
"dep:security-framework-sys",
"dep:gio",
"dep:libsecret",
"dep:zbus",
"dep:zbus_polkit",
]

[dependencies]
aes = "=0.8.4"
anyhow = "=1.0.93"
arboard = { version = "=3.4.1", default-features = false, features = [
"wayland-data-control",
"wayland-data-control",
] }
async-stream = "=0.3.5"
base64 = "=0.22.1"
Expand All @@ -50,7 +50,7 @@ ssh-key = { version = "=0.6.6", default-features = false, features = [
"rsa",
"getrandom",
] }
bitwarden-russh = { git = "https://github.com/bitwarden/bitwarden-russh.git", branch = "km/pm-10098/clean-russh-implementation" }
bitwarden-russh = { git = "https://github.com/bitwarden/bitwarden-russh.git", rev = "b4e7f2f" }
tokio = { version = "=1.40.0", features = ["io-util", "sync", "macros", "net"] }
tokio-stream = { version = "=0.1.15", features = ["net"] }
tokio-util = { version = "0.7.11", features = ["codec"] }
Expand All @@ -64,15 +64,15 @@ ed25519 = { version = "=2.2.3", features = ["pkcs8"] }
[target.'cfg(windows)'.dependencies]
widestring = { version = "=1.1.0", optional = true }
windows = { version = "=0.57.0", features = [
"Foundation",
"Security_Credentials_UI",
"Security_Cryptography",
"Storage_Streams",
"Win32_Foundation",
"Win32_Security_Credentials",
"Win32_System_WinRT",
"Win32_UI_Input_KeyboardAndMouse",
"Win32_UI_WindowsAndMessaging",
"Foundation",
"Security_Credentials_UI",
"Security_Cryptography",
"Storage_Streams",
"Win32_Foundation",
"Win32_Security_Credentials",
"Win32_System_WinRT",
"Win32_UI_Input_KeyboardAndMouse",
"Win32_UI_WindowsAndMessaging",
], optional = true }

[target.'cfg(windows)'.dev-dependencies]
Expand Down
38 changes: 36 additions & 2 deletions apps/desktop/desktop_native/core/src/ssh_agent/mod.rs
Original file line number Diff line number Diff line change
Expand Up @@ -17,9 +17,11 @@ pub mod importer;
pub struct BitwardenDesktopAgent {
keystore: ssh_agent::KeyStore,
cancellation_token: CancellationToken,
show_ui_request_tx: tokio::sync::mpsc::Sender<(u32, String)>,
show_ui_request_tx: tokio::sync::mpsc::Sender<(u32, (String, bool))>,
get_ui_response_rx: Arc<Mutex<tokio::sync::broadcast::Receiver<(u32, bool)>>>,
request_id: Arc<Mutex<u32>>,
/// before first unlock, or after account switching, listing keys should require an unlock to get a list of public keys
needs_unlock: Arc<Mutex<bool>>,
is_running: Arc<tokio::sync::Mutex<bool>>,
}

Expand All @@ -33,8 +35,30 @@ impl ssh_agent::Agent for BitwardenDesktopAgent {
let request_id = self.get_request_id().await;

let mut rx_channel = self.get_ui_response_rx.lock().await.resubscribe();
let message = (request_id, (ssh_key.cipher_uuid.clone(), false));
self.show_ui_request_tx
.send((request_id, ssh_key.cipher_uuid.clone()))
.send(message)
.await
.expect("Should send request to ui");
while let Ok((id, response)) = rx_channel.recv().await {
if id == request_id {
return response;
}
}
false
}

async fn can_list(&self) -> bool {
if !*self.needs_unlock.lock().await{
return true;
}

let request_id = self.get_request_id().await;

let mut rx_channel = self.get_ui_response_rx.lock().await.resubscribe();
let message = (request_id, ("".to_string(), true));
self.show_ui_request_tx
.send(message)
.await
.expect("Should send request to ui");
while let Ok((id, response)) = rx_channel.recv().await {
Expand Down Expand Up @@ -75,6 +99,8 @@ impl BitwardenDesktopAgent {
let keystore = &mut self.keystore;
keystore.0.write().expect("RwLock is not poisoned").clear();

*self.needs_unlock.blocking_lock() = false;

for (key, name, cipher_id) in new_keys.iter() {
match parse_key_safe(&key) {
Ok(private_key) => {
Expand Down Expand Up @@ -119,6 +145,14 @@ impl BitwardenDesktopAgent {
Ok(())
}

pub fn clear_keys(&mut self) -> Result<(), anyhow::Error> {
let keystore = &mut self.keystore;
keystore.0.write().expect("RwLock is not poisoned").clear();
*self.needs_unlock.blocking_lock() = true;

Ok(())
}

async fn get_request_id(&self) -> u32 {
if !*self.is_running.lock().await {
println!("[BitwardenDesktopAgent] Agent is not running, but tried to get request id");
Expand Down
3 changes: 2 additions & 1 deletion apps/desktop/desktop_native/core/src/ssh_agent/unix.rs
Original file line number Diff line number Diff line change
Expand Up @@ -14,7 +14,7 @@ use super::BitwardenDesktopAgent;

impl BitwardenDesktopAgent {
pub async fn start_server(
auth_request_tx: tokio::sync::mpsc::Sender<(u32, String)>,
auth_request_tx: tokio::sync::mpsc::Sender<(u32, (String, bool))>,
auth_response_rx: Arc<Mutex<tokio::sync::broadcast::Receiver<(u32, bool)>>>,
) -> Result<Self, anyhow::Error> {
let agent = BitwardenDesktopAgent {
Expand All @@ -23,6 +23,7 @@ impl BitwardenDesktopAgent {
show_ui_request_tx: auth_request_tx,
get_ui_response_rx: auth_response_rx,
request_id: Arc::new(tokio::sync::Mutex::new(0)),
needs_unlock: Arc::new(tokio::sync::Mutex::new(true)),
is_running: Arc::new(tokio::sync::Mutex::new(false)),
};
let cloned_agent_state = agent.clone();
Expand Down
3 changes: 2 additions & 1 deletion apps/desktop/desktop_native/core/src/ssh_agent/windows.rs
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ use super::BitwardenDesktopAgent;

impl BitwardenDesktopAgent {
pub async fn start_server(
auth_request_tx: tokio::sync::mpsc::Sender<(u32, String)>,
auth_request_tx: tokio::sync::mpsc::Sender<(u32, (String, bool))>,
auth_response_rx: Arc<Mutex<tokio::sync::broadcast::Receiver<(u32, bool)>>>,
) -> Result<Self, anyhow::Error> {
let agent_state = BitwardenDesktopAgent {
Expand All @@ -21,6 +21,7 @@ impl BitwardenDesktopAgent {
get_ui_response_rx: auth_response_rx,
cancellation_token: CancellationToken::new(),
request_id: Arc::new(tokio::sync::Mutex::new(0)),
needs_unlock: Arc::new(tokio::sync::Mutex::new(true)),
is_running: Arc::new(tokio::sync::Mutex::new(true)),
};
let stream = named_pipe_listener_stream::NamedPipeServerStream::new(
Expand Down
3 changes: 2 additions & 1 deletion apps/desktop/desktop_native/napi/index.d.ts
Original file line number Diff line number Diff line change
Expand Up @@ -69,12 +69,13 @@ export declare namespace sshagent {
status: SshKeyImportStatus
sshKey?: SshKey
}
export function serve(callback: (err: Error | null, arg: string) => any): Promise<SshAgentState>
export function serve(callback: (err: Error | null, arg0: string, arg1: boolean) => any): Promise<SshAgentState>
export function stop(agentState: SshAgentState): void
export function isRunning(agentState: SshAgentState): boolean
export function setKeys(agentState: SshAgentState, newKeys: Array<PrivateKey>): void
export function lock(agentState: SshAgentState): void
export function importKey(encodedKey: string, password: string): SshKeyImportResult
export function clearKeys(agentState: SshAgentState): void
export function generateKeypair(keyAlgorithm: string): Promise<SshKey>
export class SshAgentState { }
}
Expand Down
14 changes: 10 additions & 4 deletions apps/desktop/desktop_native/napi/src/lib.rs
Original file line number Diff line number Diff line change
Expand Up @@ -247,15 +247,15 @@ pub mod sshagent {

#[napi]
pub async fn serve(
callback: ThreadsafeFunction<String, CalleeHandled>,
callback: ThreadsafeFunction<(String, bool), CalleeHandled>,
) -> napi::Result<SshAgentState> {
let (auth_request_tx, mut auth_request_rx) = tokio::sync::mpsc::channel::<(u32, String)>(32);
let (auth_request_tx, mut auth_request_rx) = tokio::sync::mpsc::channel::<(u32, (String, bool))>(32);
let (auth_response_tx, auth_response_rx) = tokio::sync::broadcast::channel::<(u32, bool)>(32);
let auth_response_tx_arc = Arc::new(Mutex::new(auth_response_tx));
tokio::spawn(async move {
let _ = auth_response_rx;

while let Some((request_id, cipher_uuid)) = auth_request_rx.recv().await {
while let Some((request_id, (cipher_uuid, is_list_request))) = auth_request_rx.recv().await {
let cloned_request_id = request_id.clone();
let cloned_cipher_uuid = cipher_uuid.clone();
let cloned_response_tx_arc = auth_response_tx_arc.clone();
Expand All @@ -266,7 +266,7 @@ pub mod sshagent {
let auth_response_tx_arc = cloned_response_tx_arc;
let callback = cloned_callback;
let promise_result: Result<Promise<bool>, napi::Error> =
callback.call_async(Ok(cipher_uuid)).await;
callback.call_async(Ok((cipher_uuid, is_list_request))).await;
match promise_result {
Ok(promise_result) => match promise_result.await {
Ok(result) => {
Expand Down Expand Up @@ -345,6 +345,12 @@ pub mod sshagent {
Ok(result.into())
}

#[napi]
pub fn clear_keys(agent_state: &mut SshAgentState) -> napi::Result<()> {
let bitwarden_agent_state = &mut agent_state.state;
bitwarden_agent_state.clear_keys().map_err(|e| napi::Error::from_reason(e.to_string()))
}

#[napi]
pub async fn generate_keypair(key_algorithm: String) -> napi::Result<SshKey> {
desktop_core::ssh_agent::generator::generate_keypair(key_algorithm)
Expand Down
9 changes: 8 additions & 1 deletion apps/desktop/src/platform/main/main-ssh-agent.service.ts
Original file line number Diff line number Diff line change
Expand Up @@ -27,7 +27,7 @@ export class MainSshAgentService {
init() {
// handle sign request passing to UI
sshagent
.serve(async (err: Error, cipherId: string) => {
.serve(async (err: Error, cipherId: string, isListRequest: boolean) => {
// clear all old (> SIGN_TIMEOUT) requests
this.requestResponses = this.requestResponses.filter(
(response) => response.timestamp > new Date(Date.now() - this.SIGN_TIMEOUT),
Expand All @@ -37,6 +37,7 @@ export class MainSshAgentService {
const id_for_this_request = this.request_id;
this.messagingService.send("sshagent.signrequest", {
cipherId,
isListRequest,
requestId: id_for_this_request,
});

Expand Down Expand Up @@ -111,5 +112,11 @@ export class MainSshAgentService {
sshagent.lock(this.agentState);
}
});

ipcMain.handle("sshagent.clearkeys", async (event: any) => {
if (this.agentState != null) {
sshagent.clearKeys(this.agentState);
}
});
}
}
3 changes: 3 additions & 0 deletions apps/desktop/src/platform/preload.ts
Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,9 @@ const sshAgent = {
lock: async () => {
return await ipcRenderer.invoke("sshagent.lock");
},
clearKeys: async () => {
return await ipcRenderer.invoke("sshagent.clearkeys");
},
importKey: async (key: string, password: string): Promise<ssh.SshKeyImportResult> => {
const res = await ipcRenderer.invoke("sshagent.importkey", {
privateKey: key,
Expand Down
63 changes: 50 additions & 13 deletions apps/desktop/src/platform/services/ssh-agent.service.ts
Original file line number Diff line number Diff line change
Expand Up @@ -5,9 +5,11 @@ import {
concatMap,
EMPTY,
filter,
firstValueFrom,
from,
map,
of,
skip,
Subject,
switchMap,
takeUntil,
Expand All @@ -17,6 +19,7 @@ import {
withLatestFrom,
} from "rxjs";

import { AccountService } from "@bitwarden/common/auth/abstractions/account.service";
import { AuthService } from "@bitwarden/common/auth/abstractions/auth.service";
import { AuthenticationStatus } from "@bitwarden/common/auth/enums/authentication-status";
import { FeatureFlag } from "@bitwarden/common/enums/feature-flag.enum";
Expand Down Expand Up @@ -52,6 +55,7 @@ export class SshAgentService implements OnDestroy {
private i18nService: I18nService,
private desktopSettingsService: DesktopSettingsService,
private configService: ConfigService,
private accountService: AccountService,
) {}

async init() {
Expand Down Expand Up @@ -112,19 +116,34 @@ export class SshAgentService implements OnDestroy {
),
),
// This concatMap handles showing the dialog to approve the request.
concatMap(([message, decryptedCiphers]) => {
concatMap(async ([message, ciphers]) => {
const cipherId = message.cipherId as string;
const isListRequest = message.isListRequest as boolean;
const requestId = message.requestId as number;

if (decryptedCiphers === undefined) {
return of(false).pipe(
switchMap((result) =>
ipc.platform.sshAgent.signRequestResponse(requestId, Boolean(result)),
),
if (isListRequest) {
const sshCiphers = ciphers.filter(
(cipher) => cipher.type === CipherType.SshKey && !cipher.isDeleted,
);
const keys = sshCiphers.map((cipher) => {
return {
name: cipher.name,
privateKey: cipher.sshKey.privateKey,
cipherId: cipher.id,
};
});
await ipc.platform.sshAgent.setKeys(keys);
await ipc.platform.sshAgent.signRequestResponse(requestId, true);
return;
}

if (ciphers === undefined) {
ipc.platform.sshAgent
.signRequestResponse(requestId, false)
.catch((e) => this.logService.error("Failed to respond to SSH request", e));
}

const cipher = decryptedCiphers.find((cipher) => cipher.id == cipherId);
const cipher = ciphers.find((cipher) => cipher.id == cipherId);

ipc.platform.focusWindow();
const dialogRef = ApproveSshRequestComponent.open(
Expand All @@ -133,24 +152,42 @@ export class SshAgentService implements OnDestroy {
this.i18nService.t("unknownApplication"),
);

return dialogRef.closed.pipe(
switchMap((result) => {
return ipc.platform.sshAgent.signRequestResponse(requestId, Boolean(result));
}),
);
const result = await firstValueFrom(dialogRef.closed);
return ipc.platform.sshAgent.signRequestResponse(requestId, result);
}),
takeUntil(this.destroy$),
)
.subscribe();

this.accountService.activeAccount$.pipe(skip(1), takeUntil(this.destroy$)).subscribe({
next: (account) => {
this.logService.info("Active account changed, clearing SSH keys");
ipc.platform.sshAgent
.clearKeys()
.catch((e) => this.logService.error("Failed to clear SSH keys", e));
},
error: (e: unknown) => {
this.logService.error("Error in active account observable", e);
ipc.platform.sshAgent
.clearKeys()
.catch((e) => this.logService.error("Failed to clear SSH keys", e));
},
complete: () => {
this.logService.info("Active account observable completed, clearing SSH keys");
ipc.platform.sshAgent
.clearKeys()
.catch((e) => this.logService.error("Failed to clear SSH keys", e));
},
});

combineLatest([
timer(0, this.SSH_REFRESH_INTERVAL),
this.desktopSettingsService.sshAgentEnabled$,
])
.pipe(
concatMap(async ([, enabled]) => {
if (!enabled) {
await ipc.platform.sshAgent.setKeys([]);
await ipc.platform.sshAgent.clearKeys();
return;
}

Expand Down