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upgrade gpauth

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Kevin Yue
2024-12-13 10:58:39 +00:00
parent 32cb582e78
commit 11235243d6
66 changed files with 4564 additions and 6614 deletions
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49
crates/auth/Cargo.toml Normal file
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[package]
name = "auth"
rust-version.workspace = true
version.workspace = true
authors.workspace = true
homepage.workspace = true
edition.workspace = true
license.workspace = true
[dependencies]
gpapi = { path = "../gpapi" }
# Shared dependencies
anyhow.workspace = true
log.workspace = true
tokio.workspace = true
# Browser auth dependencies
webbrowser = { version = "1", optional = true }
open = { version = "5", optional = true }
which = { workspace = true, optional = true }
tiny_http = { version = "0.12", optional = true }
uuid = { version = "1", optional = true, features = ["v4"] }
# Webview auth dependencies
tauri = { workspace = true, optional = true }
regex = { workspace = true, optional = true }
tokio-util = { workspace = true, optional = true }
html-escape = { version = "0.2.13", optional = true }
[target.'cfg(not(target_os = "macos"))'.dependencies]
webkit2gtk = { version = "2", optional = true }
[features]
browser-auth = [
"dep:webbrowser",
"dep:open",
"dep:which",
"dep:tiny_http",
"dep:uuid",
]
webview-auth = [
"dep:tauri",
"dep:regex",
"dep:tokio-util",
"dep:html-escape",
"dep:webkit2gtk",
"gpapi/tauri",
]

674
crates/auth/LICENSE Normal file
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Copyright (C) <year> <name of author>
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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://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

60
crates/auth/src/auth_window.rs Normal file
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use std::borrow::Cow;
use anyhow::bail;
use gpapi::{
gp_params::GpParams,
portal::{prelogin, Prelogin},
};
pub struct AuthWindow<'a> {
server: &'a str,
auth_request: Option<&'a str>,
pub(crate) gp_params: &'a GpParams,
#[cfg(feature = "webview-auth")]
pub(crate) clean: bool,
#[cfg(feature = "webview-auth")]
pub(crate) is_retrying: tokio::sync::RwLock<bool>,
}
impl<'a> AuthWindow<'a> {
pub fn new(server: &'a str, gp_params: &'a GpParams) -> Self {
Self {
server,
gp_params,
auth_request: None,
#[cfg(feature = "webview-auth")]
clean: false,
#[cfg(feature = "webview-auth")]
is_retrying: Default::default(),
}
}
pub fn with_auth_request(mut self, auth_request: &'a str) -> Self {
if !auth_request.is_empty() {
self.auth_request = Some(auth_request);
}
self
}
pub(crate) async fn initial_auth_request(&self) -> anyhow::Result<Cow<'a, str>> {
if let Some(auth_request) = self.auth_request {
return Ok(Cow::Borrowed(auth_request));
}
let auth_request = self.portal_prelogin().await?;
Ok(Cow::Owned(auth_request))
}
pub(crate) async fn portal_prelogin(&self) -> anyhow::Result<String> {
auth_prelogin(self.server, self.gp_params).await
}
}
pub async fn auth_prelogin(server: &str, gp_params: &GpParams) -> anyhow::Result<String> {
match prelogin(server, gp_params).await? {
Prelogin::Saml(prelogin) => Ok(prelogin.saml_request().to_string()),
Prelogin::Standard(_) => bail!("Received non-SAML prelogin response"),
}
}

5
crates/auth/src/browser_auth.rs Normal file
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mod auth_server;
mod browser_auth_ext;
mod browser_auth_impl;
pub use browser_auth_ext::BrowserAuthenticator;

57
crates/auth/src/browser_auth/auth_server.rs Normal file
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use std::io::Cursor;
use log::info;
use tiny_http::{Header, Response, Server};
use uuid::Uuid;
pub(super) struct AuthServer {
server: Server,
auth_id: String,
}
impl AuthServer {
pub fn new() -> anyhow::Result<Self> {
let server = Server::http("127.0.0.1:0").map_err(|err| anyhow::anyhow!(err))?;
let auth_id = Uuid::new_v4().to_string();
Ok(Self { server, auth_id })
}
pub fn auth_url(&self) -> String {
format!("http://{}/{}", self.server.server_addr(), self.auth_id)
}
pub fn serve_request(&self, auth_request: &str) {
info!("auth server started at: {}", self.auth_url());
for req in self.server.incoming_requests() {
info!("received request, method: {}, url: {}", req.method(), req.url());
if req.url() != format!("/{}", self.auth_id) {
let forbidden = Response::from_string("forbidden").with_status_code(403);
let _ = req.respond(forbidden);
} else {
let auth_response = build_auth_response(auth_request);
if let Err(err) = req.respond(auth_response) {
info!("failed to respond to request: {}", err);
} else {
info!("stop the auth server");
break;
}
}
}
}
}
fn build_auth_response(auth_request: &str) -> Response<Cursor<Vec<u8>>> {
if auth_request.starts_with("http") {
let header = format!("location: {}", auth_request);
let header: Header = header.parse().unwrap();
Response::from_string("redirect")
.with_status_code(302)
.with_header(header)
} else {
let content_type: Header = "content-type: text/html".parse().unwrap();
Response::from_string(auth_request).with_header(content_type)
}
}

22
crates/auth/src/browser_auth/browser_auth_ext.rs Normal file
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use std::future::Future;
use gpapi::auth::SamlAuthData;
use crate::{browser_auth::browser_auth_impl::BrowserAuthenticatorImpl, AuthWindow};
pub trait BrowserAuthenticator {
fn browser_authenticate(&self, browser: Option<&str>) -> impl Future<Output = anyhow::Result<SamlAuthData>> + Send;
}
impl BrowserAuthenticator for AuthWindow<'_> {
async fn browser_authenticate(&self, browser: Option<&str>) -> anyhow::Result<SamlAuthData> {
let auth_request = self.initial_auth_request().await?;
let browser_auth = if let Some(browser) = browser {
BrowserAuthenticatorImpl::new_with_browser(&auth_request, browser)
} else {
BrowserAuthenticatorImpl::new(&auth_request)
};
browser_auth.authenticate().await
}
}

100
crates/auth/src/browser_auth/browser_auth_impl.rs Normal file
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use std::{env::temp_dir, fs, os::unix::fs::PermissionsExt};
use gpapi::{auth::SamlAuthData, GP_CALLBACK_PORT_FILENAME};
use log::info;
use tokio::{io::AsyncReadExt, net::TcpListener};
use super::auth_server::AuthServer;
pub struct BrowserAuthenticatorImpl<'a> {
auth_request: &'a str,
browser: Option<&'a str>,
}
impl BrowserAuthenticatorImpl<'_> {
pub fn new(auth_request: &str) -> BrowserAuthenticatorImpl {
BrowserAuthenticatorImpl {
auth_request,
browser: None,
}
}
pub fn new_with_browser<'a>(auth_request: &'a str, browser: &'a str) -> BrowserAuthenticatorImpl<'a> {
let browser = browser.trim();
BrowserAuthenticatorImpl {
auth_request,
browser: if browser.is_empty() || browser == "default" {
None
} else {
Some(browser)
},
}
}
pub async fn authenticate(&self) -> anyhow::Result<SamlAuthData> {
let auth_server = AuthServer::new()?;
let auth_url = auth_server.auth_url();
let auth_request = self.auth_request.to_string();
tokio::spawn(async move {
auth_server.serve_request(&auth_request);
});
if let Some(browser) = self.browser {
let app = find_browser_path(browser);
info!("Launching browser: {}", app);
open::with_detached(auth_url, app)?;
} else {
info!("Launching the default browser...");
webbrowser::open(&auth_url)?;
}
info!("Please continue the authentication process in the default browser");
wait_auth_data().await
}
}
fn find_browser_path(browser: &str) -> String {
if browser == "chrome" {
which::which("google-chrome-stable")
.or_else(|_| which::which("google-chrome"))
.or_else(|_| which::which("chromium"))
.map(|path| path.to_string_lossy().to_string())
.unwrap_or_else(|_| browser.to_string())
} else {
browser.into()
}
}
async fn wait_auth_data() -> anyhow::Result<SamlAuthData> {
// Start a local server to receive the browser authentication data
let listener = TcpListener::bind("127.0.0.1:0").await?;
let port = listener.local_addr()?.port();
let port_file = temp_dir().join(GP_CALLBACK_PORT_FILENAME);
// Write the port to a file
fs::write(&port_file, port.to_string())?;
fs::set_permissions(&port_file, fs::Permissions::from_mode(0o600))?;
// Remove the previous log file
let callback_log = temp_dir().join("gpcallback.log");
let _ = fs::remove_file(&callback_log);
info!("Listening authentication data on port {}", port);
info!(
"If it hangs, please check the logs at `{}` for more information",
callback_log.display()
);
let (mut socket, _) = listener.accept().await?;
info!("Received the browser authentication data from the socket");
let mut data = String::new();
socket.read_to_string(&mut data).await?;
// Remove the port file
fs::remove_file(&port_file)?;
let auth_data = SamlAuthData::from_gpcallback(&data)?;
Ok(auth_data)
}

13
crates/auth/src/lib.rs Normal file
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mod auth_window;
pub use auth_window::AuthWindow;
pub use auth_window::auth_prelogin;
#[cfg(feature = "browser-auth")]
mod browser_auth;
#[cfg(feature = "browser-auth")]
pub use browser_auth::BrowserAuthenticator;
#[cfg(feature = "webview-auth")]
mod webview_auth;
#[cfg(feature = "webview-auth")]
pub use webview_auth::WebviewAuthenticator;

9
crates/auth/src/webview_auth.rs Normal file
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mod auth_messenger;
mod auth_response;
mod auth_settings;
mod webview_auth_ext;
#[cfg_attr(not(target_os = "macos"), path = "webview_auth/unix.rs")]
mod platform_impl;
pub use webview_auth_ext::WebviewAuthenticator;

108
crates/auth/src/webview_auth/auth_messenger.rs Normal file
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use anyhow::bail;
use gpapi::auth::SamlAuthData;
use log::{error, info};
use tokio::sync::{mpsc, RwLock};
use tokio_util::sync::CancellationToken;
pub enum AuthError {
/// Failed to load page due to TLS error
TlsError,
/// 1. Found auth data in headers/body but it's invalid
/// 2. Loaded an empty page, failed to load page. etc.
Invalid,
/// No auth data found in headers/body
NotFound,
}
pub type AuthResult = anyhow::Result<SamlAuthData, AuthError>;
pub enum AuthEvent {
Data(SamlAuthData),
Error(AuthError),
RaiseWindow,
Close,
}
pub struct AuthMessenger {
tx: mpsc::UnboundedSender<AuthEvent>,
rx: RwLock<mpsc::UnboundedReceiver<AuthEvent>>,
raise_window_cancel_token: RwLock<Option<CancellationToken>>,
}
impl AuthMessenger {
pub fn new() -> Self {
let (tx, rx) = mpsc::unbounded_channel();
Self {
tx,
rx: RwLock::new(rx),
raise_window_cancel_token: Default::default(),
}
}
pub async fn subscribe(&self) -> anyhow::Result<AuthEvent> {
let mut rx = self.rx.write().await;
if let Some(event) = rx.recv().await {
return Ok(event);
}
bail!("Failed to receive auth event");
}
pub fn send_auth_event(&self, event: AuthEvent) {
if let Err(event) = self.tx.send(event) {
error!("Failed to send auth event: {}", event);
}
}
pub fn send_auth_result(&self, result: AuthResult) {
match result {
Ok(data) => self.send_auth_data(data),
Err(err) => self.send_auth_error(err),
}
}
pub fn send_auth_error(&self, err: AuthError) {
self.send_auth_event(AuthEvent::Error(err));
}
pub fn send_auth_data(&self, data: SamlAuthData) {
self.send_auth_event(AuthEvent::Data(data));
}
pub fn schedule_raise_window(&self, delay: u64) {
let cancel_token = CancellationToken::new();
let cancel_token_clone = cancel_token.clone();
if let Ok(mut guard) = self.raise_window_cancel_token.try_write() {
// Cancel the previous raise window task if it exists
if let Some(token) = guard.take() {
token.cancel();
}
*guard = Some(cancel_token_clone);
}
let tx = self.tx.clone();
tokio::spawn(async move {
info!("Displaying the window in {} second(s)...", delay);
tokio::select! {
_ = tokio::time::sleep(tokio::time::Duration::from_secs(delay)) => {
if let Err(err) = tx.send(AuthEvent::RaiseWindow) {
error!("Failed to send raise window event: {}", err);
}
}
_ = cancel_token.cancelled() => {
info!("Cancelled raise window task");
}
}
});
}
pub fn cancel_raise_window(&self) {
if let Ok(mut cancel_token) = self.raise_window_cancel_token.try_write() {
if let Some(token) = cancel_token.take() {
token.cancel();
}
}
}
}

152
crates/auth/src/webview_auth/auth_response.rs Normal file
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use std::sync::Arc;
use gpapi::{
auth::{AuthDataParseResult, SamlAuthData},
error::AuthDataParseError,
};
use log::{info, warn};
use regex::Regex;
use crate::webview_auth::auth_messenger::{AuthError, AuthMessenger};
/// Trait for handling authentication response
pub trait AuthResponse {
fn get_header(&self, key: &str) -> Option<String>;
fn get_body<F>(&self, cb: F)
where
F: FnOnce(anyhow::Result<Vec<u8>>) + 'static;
fn url(&self) -> Option<String>;
fn is_acs_endpoint(&self) -> bool {
self.url().map_or(false, |url| url.ends_with("/SAML20/SP/ACS"))
}
}
pub fn read_auth_data(auth_response: &impl AuthResponse, auth_messenger: &Arc<AuthMessenger>) {
let auth_messenger = Arc::clone(auth_messenger);
match read_from_headers(auth_response) {
Ok(auth_data) => {
info!("Found auth data in headers");
auth_messenger.send_auth_data(auth_data);
}
Err(header_err) => {
info!("Failed to read auth data from headers: {}", header_err);
let is_acs_endpoint = auth_response.is_acs_endpoint();
read_from_body(auth_response, move |auth_result| {
// If the endpoint is `/SAML20/SP/ACS` and no auth data found in body, it should be considered as invalid
let auth_result = auth_result.map_err(move |e| {
info!("Failed to read auth data from body: {}", e);
if is_acs_endpoint || e.is_invalid() || header_err.is_invalid() {
AuthError::Invalid
} else {
AuthError::NotFound
}
});
auth_messenger.send_auth_result(auth_result);
});
}
}
}
fn read_from_headers(auth_response: &impl AuthResponse) -> AuthDataParseResult {
let Some(status) = auth_response.get_header("saml-auth-status") else {
info!("No SAML auth status found in headers");
return Err(AuthDataParseError::NotFound);
};
if status != "1" {
info!("Found invalid auth status: {}", status);
return Err(AuthDataParseError::Invalid);
}
let username = auth_response.get_header("saml-username");
let prelogin_cookie = auth_response.get_header("prelogin-cookie");
let portal_userauthcookie = auth_response.get_header("portal-userauthcookie");
SamlAuthData::new(username, prelogin_cookie, portal_userauthcookie).map_err(|e| {
warn!("Found invalid auth data: {}", e);
AuthDataParseError::Invalid
})
}
fn read_from_body<F>(auth_response: &impl AuthResponse, cb: F)
where
F: FnOnce(AuthDataParseResult) + 'static,
{
auth_response.get_body(|body| match body {
Ok(body) => {
let html = String::from_utf8_lossy(&body);
cb(read_from_html(&html))
}
Err(err) => {
info!("Failed to read body: {}", err);
cb(Err(AuthDataParseError::Invalid))
}
});
}
fn read_from_html(html: &str) -> AuthDataParseResult {
if html.contains("Temporarily Unavailable") {
info!("Found 'Temporarily Unavailable' in HTML, auth failed");
return Err(AuthDataParseError::Invalid);
}
SamlAuthData::from_html(html).or_else(|err| {
if let Some(gpcallback) = extract_gpcallback(html) {
info!("Found gpcallback from html...");
SamlAuthData::from_gpcallback(&gpcallback)
} else {
Err(err)
}
})
}
fn extract_gpcallback(html: &str) -> Option<String> {
let re = Regex::new(r#"globalprotectcallback:[^"]+"#).unwrap();
re.captures(html)
.and_then(|captures| captures.get(0))
.map(|m| html_escape::decode_html_entities(m.as_str()).to_string())
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn extract_gpcallback_some() {
let html = r#"
<meta http-equiv="refresh" content="0; URL=globalprotectcallback:PGh0bWw+PCEtLSA8c">
<meta http-equiv="refresh" content="0; URL=globalprotectcallback:PGh0bWw+PCEtLSA8c">
"#;
assert_eq!(
extract_gpcallback(html).as_deref(),
Some("globalprotectcallback:PGh0bWw+PCEtLSA8c")
);
}
#[test]
fn extract_gpcallback_cas() {
let html = r#"
<meta http-equiv="refresh" content="0; URL=globalprotectcallback:cas-as=1&amp;un=xyz@email.com&amp;token=very_long_string">
"#;
assert_eq!(
extract_gpcallback(html).as_deref(),
Some("globalprotectcallback:cas-as=1&un=xyz@email.com&token=very_long_string")
);
}
#[test]
fn extract_gpcallback_none() {
let html = r#"
<meta http-equiv="refresh" content="0; URL=PGh0bWw+PCEtLSA8c">
"#;
assert_eq!(extract_gpcallback(html), None);
}
}

25
crates/auth/src/webview_auth/auth_settings.rs Normal file
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use std::sync::Arc;
use super::auth_messenger::AuthMessenger;
pub struct AuthRequest<'a>(&'a str);
impl<'a> AuthRequest<'a> {
pub fn new(auth_request: &'a str) -> Self {
Self(auth_request)
}
pub fn is_url(&self) -> bool {
self.0.starts_with("http")
}
pub fn as_str(&self) -> &str {
self.0
}
}
pub struct AuthSettings<'a> {
pub auth_request: AuthRequest<'a>,
pub auth_messenger: Arc<AuthMessenger>,
pub ignore_tls_errors: bool,
}

136
crates/auth/src/webview_auth/unix.rs Normal file
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use std::sync::Arc;
use anyhow::bail;
use gpapi::utils::redact::redact_uri;
use log::{info, warn};
use webkit2gtk::{
gio::Cancellable,
glib::{GString, TimeSpan},
LoadEvent, TLSErrorsPolicy, URIResponseExt, WebResource, WebResourceExt, WebView, WebViewExt, WebsiteDataManagerExt,
WebsiteDataManagerExtManual, WebsiteDataTypes,
};
use crate::webview_auth::{
auth_messenger::AuthError,
auth_response::read_auth_data,
auth_settings::{AuthRequest, AuthSettings},
};
use super::auth_response::AuthResponse;
impl AuthResponse for WebResource {
fn get_header(&self, key: &str) -> Option<String> {
self
.response()
.and_then(|response| response.http_headers())
.and_then(|headers| headers.one(key))
.map(GString::into)
}
fn get_body<F>(&self, cb: F)
where
F: FnOnce(anyhow::Result<Vec<u8>>) + 'static,
{
let cancellable = Cancellable::NONE;
self.data(cancellable, |data| cb(data.map_err(|e| anyhow::anyhow!(e))));
}
fn url(&self) -> Option<String> {
self.uri().map(GString::into)
}
}
pub fn clear_data<F>(wv: &WebView, cb: F)
where
F: FnOnce(anyhow::Result<()>) + Send + 'static,
{
let Some(data_manager) = wv.website_data_manager() else {
cb(Err(anyhow::anyhow!("Failed to get website data manager")));
return;
};
data_manager.clear(
WebsiteDataTypes::COOKIES,
TimeSpan(0),
Cancellable::NONE,
move |result| {
cb(result.map_err(|e| anyhow::anyhow!(e)));
},
);
}
pub fn setup_webview(wv: &WebView, auth_settings: AuthSettings) -> anyhow::Result<()> {
let AuthSettings {
auth_request,
auth_messenger,
ignore_tls_errors,
} = auth_settings;
let auth_messenger_clone = Arc::clone(&auth_messenger);
let Some(data_manager) = wv.website_data_manager() else {
bail!("Failed to get website data manager");
};
if ignore_tls_errors {
data_manager.set_tls_errors_policy(TLSErrorsPolicy::Ignore);
}
wv.connect_load_changed(move |wv, event| {
if event == LoadEvent::Started {
auth_messenger_clone.cancel_raise_window();
return;
}
if event != LoadEvent::Finished {
return;
}
let Some(main_resource) = wv.main_resource() else {
return;
};
let uri = main_resource.uri().unwrap_or("".into());
if uri.is_empty() {
warn!("Loaded an empty URI");
auth_messenger_clone.send_auth_error(AuthError::Invalid);
return;
}
read_auth_data(&main_resource, &auth_messenger_clone);
});
wv.connect_load_failed_with_tls_errors(move |_wv, uri, cert, err| {
let redacted_uri = redact_uri(uri);
warn!(
"Failed to load uri: {} with error: {}, cert: {}",
redacted_uri, err, cert
);
auth_messenger.send_auth_error(AuthError::TlsError);
true
});
wv.connect_load_failed(move |_wv, _event, uri, err| {
let redacted_uri = redact_uri(uri);
if !uri.starts_with("globalprotectcallback:") {
warn!("Failed to load uri: {} with error: {}", redacted_uri, err);
}
// NOTE: Don't send error here, since load_changed event will be triggered after this
// true to stop other handlers from being invoked for the event. false to propagate the event further.
true
});
load_auth_request(wv, &auth_request);
Ok(())
}
pub fn load_auth_request(wv: &WebView, auth_request: &AuthRequest) {
if auth_request.is_url() {
info!("Loading auth request as URI...");
wv.load_uri(auth_request.as_str());
} else {
info!("Loading auth request as HTML...");
wv.load_html(auth_request.as_str(), None);
}
}

194
crates/auth/src/webview_auth/webview_auth_ext.rs Normal file
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use std::{
future::Future,
sync::Arc,
time::{Duration, Instant},
};
use anyhow::bail;
use gpapi::{auth::SamlAuthData, error::PortalError, utils::window::WindowExt};
use log::{info, warn};
use tauri::{AppHandle, WebviewUrl, WebviewWindow, WindowEvent};
use tokio::{sync::oneshot, time};
use crate::{
webview_auth::{
auth_messenger::{AuthError, AuthEvent, AuthMessenger},
auth_settings::{AuthRequest, AuthSettings},
platform_impl,
},
AuthWindow,
};
pub trait WebviewAuthenticator {
fn with_clean(self, clean: bool) -> Self;
fn webview_authenticate(&self, app_handle: &AppHandle) -> impl Future<Output = anyhow::Result<SamlAuthData>> + Send;
}
impl WebviewAuthenticator for AuthWindow<'_> {
fn with_clean(mut self, clean: bool) -> Self {
self.clean = clean;
self
}
async fn webview_authenticate(&self, app_handle: &AppHandle) -> anyhow::Result<SamlAuthData> {
let auth_window = WebviewWindow::builder(app_handle, "auth_window", WebviewUrl::default())
.title("GlobalProtect Login")
.focused(true)
.visible(false)
.center()
.build()?;
self.auth_loop(&auth_window).await
}
}
impl AuthWindow<'_> {
async fn auth_loop(&self, auth_window: &WebviewWindow) -> anyhow::Result<SamlAuthData> {
if self.clean {
self.clear_webview_data(&auth_window).await?;
}
let auth_messenger = self.setup_auth_window(&auth_window).await?;
loop {
match auth_messenger.subscribe().await? {
AuthEvent::Close => bail!("Authentication cancelled"),
AuthEvent::RaiseWindow => self.raise_window(auth_window),
AuthEvent::Error(AuthError::TlsError) => bail!(PortalError::TlsError),
AuthEvent::Error(AuthError::NotFound) => self.handle_not_found(auth_window, &auth_messenger),
AuthEvent::Error(AuthError::Invalid) => self.retry_auth(auth_window).await,
AuthEvent::Data(auth_data) => {
auth_window.close()?;
return Ok(auth_data);
}
}
}
}
async fn clear_webview_data(&self, auth_window: &WebviewWindow) -> anyhow::Result<()> {
info!("Clearing webview data...");
let (tx, rx) = oneshot::channel::<anyhow::Result<()>>();
let now = Instant::now();
auth_window.with_webview(|webview| {
platform_impl::clear_data(&webview.inner(), |result| {
if let Err(result) = tx.send(result) {
warn!("Failed to send clear data result: {:?}", result);
}
})
})?;
rx.await??;
info!("Webview data cleared in {:?}", now.elapsed());
Ok(())
}
async fn setup_auth_window(&self, auth_window: &WebviewWindow) -> anyhow::Result<Arc<AuthMessenger>> {
info!("Setting up auth window...");
let auth_messenger = Arc::new(AuthMessenger::new());
let auth_request = self.initial_auth_request().await?.into_owned();
let ignore_tls_errors = self.gp_params.ignore_tls_errors();
// Handle window close event
let auth_messenger_clone = Arc::clone(&auth_messenger);
auth_window.on_window_event(move |event| {
if let WindowEvent::CloseRequested { .. } = event {
auth_messenger_clone.send_auth_event(AuthEvent::Close);
}
});
// Show the window after 10 seconds, so that the user can see the window if the auth process is stuck
let auth_messenger_clone = Arc::clone(&auth_messenger);
tokio::spawn(async move {
time::sleep(Duration::from_secs(10)).await;
auth_messenger_clone.send_auth_event(AuthEvent::RaiseWindow);
});
// setup webview
let auth_messenger_clone = Arc::clone(&auth_messenger);
let (tx, rx) = oneshot::channel::<anyhow::Result<()>>();
auth_window.with_webview(move |webview| {
let auth_settings = AuthSettings {
auth_request: AuthRequest::new(&auth_request),
auth_messenger: auth_messenger_clone,
ignore_tls_errors,
};
let result = platform_impl::setup_webview(&webview.inner(), auth_settings);
if let Err(result) = tx.send(result) {
warn!("Failed to send setup auth window result: {:?}", result);
}
})?;
rx.await??;
info!("Auth window setup completed");
Ok(auth_messenger)
}
fn handle_not_found(&self, auth_window: &WebviewWindow, auth_messenger: &Arc<AuthMessenger>) {
info!("No auth data found, it may not be the /SAML20/SP/ACS endpoint");
let visible = auth_window.is_visible().unwrap_or(false);
if visible {
return;
}
auth_messenger.schedule_raise_window(1);
}
async fn retry_auth(&self, auth_window: &WebviewWindow) {
let mut is_retrying = self.is_retrying.write().await;
if *is_retrying {
info!("Already retrying authentication, skipping...");
return;
}
*is_retrying = true;
drop(is_retrying);
if let Err(err) = self.retry_auth_impl(auth_window).await {
warn!("Failed to retry authentication: {}", err);
}
*self.is_retrying.write().await = false;
}
async fn retry_auth_impl(&self, auth_window: &WebviewWindow) -> anyhow::Result<()> {
info!("Retrying authentication...");
auth_window.eval( r#"
var loading = document.createElement("div");
loading.innerHTML = '<div style="position: absolute; width: 100%; text-align: center; font-size: 20px; font-weight: bold; top: 50%; left: 50%; transform: translate(-50%, -50%);">Got invalid token, retrying...</div>';
loading.style = "position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(255, 255, 255, 0.85); z-index: 99999;";
document.body.appendChild(loading);
"#)?;
let auth_request = self.portal_prelogin().await?;
let (tx, rx) = oneshot::channel::<()>();
auth_window.with_webview(move |webview| {
let auth_request = AuthRequest::new(&auth_request);
platform_impl::load_auth_request(&webview.inner(), &auth_request);
tx.send(()).expect("Failed to send message to the channel")
})?;
rx.await?;
Ok(())
}
fn raise_window(&self, auth_window: &WebviewWindow) {
let visible = auth_window.is_visible().unwrap_or(false);
if visible {
return;
}
info!("Raising auth window...");
if let Err(err) = auth_window.raise() {
warn!("Failed to raise window: {}", err);
}
}
}

6
crates/gpapi/Cargo.toml
View File

@@ -1,5 +1,6 @@
[package]
name = "gpapi"
rust-version.workspace = true
version.workspace = true
edition.workspace = true
license = "MIT"
@@ -29,14 +30,11 @@ uzers.workspace = true
serde_urlencoded.workspace = true
md5.workspace = true
sha256.workspace = true
which.workspace = true
tauri = { workspace = true, optional = true }
clap = { workspace = true, optional = true }
open = { version = "5", optional = true }
webbrowser = { version = "1", optional = true }
[features]
tauri = ["dep:tauri"]
clap = ["dep:clap"]
browser-auth = ["dep:open", "dep:webbrowser"]
webview-auth = []

78
crates/gpapi/src/auth.rs
View File

@@ -1,11 +1,14 @@
use std::borrow::{Borrow, Cow};
use anyhow::bail;
use log::{info, warn};
use regex::Regex;
use serde::{Deserialize, Serialize};
use crate::{error::AuthDataParseError, utils::base64::decode_to_string};
pub type AuthDataParseResult = anyhow::Result<SamlAuthData, AuthDataParseError>;
#[derive(Debug, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct SamlAuthData {
@@ -33,33 +36,51 @@ impl SamlAuthResult {
}
impl SamlAuthData {
pub fn new(username: String, prelogin_cookie: Option<String>, portal_userauthcookie: Option<String>) -> Self {
Self {
username,
prelogin_cookie,
portal_userauthcookie,
token: None,
pub fn new(
username: Option<String>,
prelogin_cookie: Option<String>,
portal_userauthcookie: Option<String>,
) -> anyhow::Result<Self> {
let username = username.unwrap_or_default();
if username.is_empty() {
bail!("Invalid username: <empty>");
}
let prelogin_cookie = prelogin_cookie.unwrap_or_default();
let portal_userauthcookie = portal_userauthcookie.unwrap_or_default();
if prelogin_cookie.len() <= 5 && portal_userauthcookie.len() <= 5 {
bail!(
"Invalid prelogin-cookie: {}, portal-userauthcookie: {}",
prelogin_cookie,
portal_userauthcookie
);
}
Ok(Self {
username,
prelogin_cookie: Some(prelogin_cookie),
portal_userauthcookie: Some(portal_userauthcookie),
token: None,
})
}
pub fn from_html(html: &str) -> anyhow::Result<SamlAuthData, AuthDataParseError> {
pub fn from_html(html: &str) -> AuthDataParseResult {
match parse_xml_tag(html, "saml-auth-status") {
Some(saml_status) if saml_status == "1" => {
Some(status) if status == "1" => {
let username = parse_xml_tag(html, "saml-username");
let prelogin_cookie = parse_xml_tag(html, "prelogin-cookie");
let portal_userauthcookie = parse_xml_tag(html, "portal-userauthcookie");
if SamlAuthData::check(&username, &prelogin_cookie, &portal_userauthcookie) {
Ok(SamlAuthData::new(
username.unwrap(),
prelogin_cookie,
portal_userauthcookie,
))
} else {
Err(AuthDataParseError::Invalid)
}
SamlAuthData::new(username, prelogin_cookie, portal_userauthcookie).map_err(|e| {
warn!("Failed to parse auth data: {}", e);
AuthDataParseError::Invalid
})
}
Some(status) => {
warn!("Found invalid auth status: {}", status);
Err(AuthDataParseError::Invalid)
}
Some(_) => Err(AuthDataParseError::Invalid),
None => Err(AuthDataParseError::NotFound),
}
}
@@ -105,27 +126,6 @@ impl SamlAuthData {
pub fn token(&self) -> Option<&str> {
self.token.as_deref()
}
pub fn check(
username: &Option<String>,
prelogin_cookie: &Option<String>,
portal_userauthcookie: &Option<String>,
) -> bool {
let username_valid = username.as_ref().is_some_and(|username| !username.is_empty());
let prelogin_cookie_valid = prelogin_cookie.as_ref().is_some_and(|val| val.len() > 5);
let portal_userauthcookie_valid = portal_userauthcookie.as_ref().is_some_and(|val| val.len() > 5);
let is_valid = username_valid && (prelogin_cookie_valid || portal_userauthcookie_valid);
if !is_valid {
warn!(
"Invalid SAML auth data: username: {:?}, prelogin-cookie: {:?}, portal-userauthcookie: {:?}",
username, prelogin_cookie, portal_userauthcookie
);
}
is_valid
}
}
pub fn parse_xml_tag(html: &str, tag: &str) -> Option<String> {

27
crates/gpapi/src/clap/mod.rs
View File

@@ -1 +1,28 @@
use crate::error::PortalError;
pub mod args;
pub trait Args {
fn fix_openssl(&self) -> bool;
fn ignore_tls_errors(&self) -> bool;
}
pub fn handle_error(err: anyhow::Error, args: &impl Args) {
eprintln!("\nError: {}", err);
let Some(err) = err.downcast_ref::<PortalError>() else {
return;
};
if err.is_legacy_openssl_error() && !args.fix_openssl() {
eprintln!("\nRe-run it with the `--fix-openssl` option to work around this issue, e.g.:\n");
let args = std::env::args().collect::<Vec<_>>();
eprintln!("{} --fix-openssl {}\n", args[0], args[1..].join(" "));
}
if err.is_tls_error() && !args.ignore_tls_errors() {
eprintln!("\nRe-run it with the `--ignore-tls-errors` option to ignore the certificate error, e.g.:\n");
let args = std::env::args().collect::<Vec<_>>();
eprintln!("{} --ignore-tls-errors {}\n", args[0], args[1..].join(" "));
}
}

20
crates/gpapi/src/error.rs
View File

@@ -7,7 +7,19 @@ pub enum PortalError {
#[error("Portal config error: {0}")]
ConfigError(String),
#[error("Network error: {0}")]
NetworkError(String),
NetworkError(#[from] reqwest::Error),
#[error("TLS error")]
TlsError,
}
impl PortalError {
pub fn is_legacy_openssl_error(&self) -> bool {
format!("{:?}", self).contains("unsafe legacy renegotiation")
}
pub fn is_tls_error(&self) -> bool {
matches!(self, PortalError::TlsError) || format!("{:?}", self).contains("certificate verify failed")
}
}
#[derive(Error, Debug)]
@@ -17,3 +29,9 @@ pub enum AuthDataParseError {
#[error("Invalid auth data")]
Invalid,
}
impl AuthDataParseError {
pub fn is_invalid(&self) -> bool {
matches!(self, AuthDataParseError::Invalid)
}
}

2
crates/gpapi/src/gateway/login.rs
View File

@@ -36,7 +36,7 @@ pub async fn gateway_login(gateway: &str, cred: &Credential, gp_params: &GpParam
.form(&params)
.send()
.await
.map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e.to_string())))?;
.map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e)))?;
let res = parse_gp_response(res).await.map_err(|err| {
warn!("{err}");

1
crates/gpapi/src/lib.rs
View File

@@ -16,6 +16,7 @@ pub const GP_API_KEY: &[u8; 32] = &[0; 32];
pub const GP_USER_AGENT: &str = "PAN GlobalProtect";
pub const GP_SERVICE_LOCK_FILE: &str = "/var/run/gpservice.lock";
pub const GP_CALLBACK_PORT_FILENAME: &str = "gpcallback.port";
#[cfg(not(debug_assertions))]
pub const GP_CLIENT_BINARY: &str = "/usr/bin/gpclient";

2
crates/gpapi/src/portal/config.rs
View File

@@ -116,7 +116,7 @@ pub async fn retrieve_config(portal: &str, cred: &Credential, gp_params: &GpPara
.form(&params)
.send()
.await
.map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e.to_string())))?;
.map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e)))?;
let res_xml = parse_gp_response(res).await.or_else(|err| {
if err.status == StatusCode::NOT_FOUND {

4
crates/gpapi/src/portal/prelogin.rs
View File

@@ -116,14 +116,12 @@ pub async fn prelogin(portal: &str, gp_params: &GpParams) -> anyhow::Result<Prel
let client = Client::try_from(gp_params)?;
info!("Perform prelogin, user_agent: {}", gp_params.user_agent());
let res = client
.post(&prelogin_url)
.form(&params)
.send()
.await
.map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e.to_string())))?;
.map_err(|e| anyhow::anyhow!(PortalError::NetworkError(e)))?;
let res_xml = parse_gp_response(res).await.or_else(|err| {
if err.status == StatusCode::NOT_FOUND {

44
crates/gpapi/src/process/auth_launcher.rs
View File

@@ -14,10 +14,13 @@ pub struct SamlAuthLauncher<'a> {
user_agent: Option<&'a str>,
os: Option<&'a str>,
os_version: Option<&'a str>,
hidpi: bool,
fix_openssl: bool,
ignore_tls_errors: bool,
#[cfg(feature = "webview-auth")]
hidpi: bool,
#[cfg(feature = "webview-auth")]
clean: bool,
#[cfg(feature = "webview-auth")]
default_browser: bool,
browser: Option<&'a str>,
}
@@ -31,10 +34,13 @@ impl<'a> SamlAuthLauncher<'a> {
user_agent: None,
os: None,
os_version: None,
hidpi: false,
fix_openssl: false,
ignore_tls_errors: false,
#[cfg(feature = "webview-auth")]
hidpi: false,
#[cfg(feature = "webview-auth")]
clean: false,
#[cfg(feature = "webview-auth")]
default_browser: false,
browser: None,
}
@@ -65,11 +71,6 @@ impl<'a> SamlAuthLauncher<'a> {
self
}
pub fn hidpi(mut self, hidpi: bool) -> Self {
self.hidpi = hidpi;
self
}
pub fn fix_openssl(mut self, fix_openssl: bool) -> Self {
self.fix_openssl = fix_openssl;
self
@@ -80,11 +81,19 @@ impl<'a> SamlAuthLauncher<'a> {
self
}
#[cfg(feature = "webview-auth")]
pub fn hidpi(mut self, hidpi: bool) -> Self {
self.hidpi = hidpi;
self
}
#[cfg(feature = "webview-auth")]
pub fn clean(mut self, clean: bool) -> Self {
self.clean = clean;
self
}
#[cfg(feature = "webview-auth")]
pub fn default_browser(mut self, default_browser: bool) -> Self {
self.default_browser = default_browser;
self
@@ -120,10 +129,6 @@ impl<'a> SamlAuthLauncher<'a> {
auth_cmd.arg("--os-version").arg(os_version);
}
if self.hidpi {
auth_cmd.arg("--hidpi");
}
if self.fix_openssl {
auth_cmd.arg("--fix-openssl");
}
@@ -132,12 +137,19 @@ impl<'a> SamlAuthLauncher<'a> {
auth_cmd.arg("--ignore-tls-errors");
}
if self.clean {
auth_cmd.arg("--clean");
}
#[cfg(feature = "webview-auth")]
{
if self.hidpi {
auth_cmd.arg("--hidpi");
}
if self.default_browser {
auth_cmd.arg("--default-browser");
if self.clean {
auth_cmd.arg("--clean");
}
if self.default_browser {
auth_cmd.arg("--default-browser");
}
}
if let Some(browser) = self.browser {

77
crates/gpapi/src/process/browser_authenticator.rs
View File

@@ -1,77 +0,0 @@
use std::{borrow::Cow, env::temp_dir, fs, io::Write, os::unix::fs::PermissionsExt};
use anyhow::bail;
use log::{info, warn};
pub struct BrowserAuthenticator<'a> {
auth_request: &'a str,
browser: Option<&'a str>,
}
impl BrowserAuthenticator<'_> {
pub fn new(auth_request: &str) -> BrowserAuthenticator {
BrowserAuthenticator {
auth_request,
browser: None,
}
}
pub fn new_with_browser<'a>(auth_request: &'a str, browser: &'a str) -> BrowserAuthenticator<'a> {
let browser = browser.trim();
BrowserAuthenticator {
auth_request,
browser: if browser.is_empty() || browser == "default" {
None
} else {
Some(browser)
},
}
}
pub fn authenticate(&self) -> anyhow::Result<()> {
let path = if self.auth_request.starts_with("http") {
Cow::Borrowed(self.auth_request)
} else {
let html_file = temp_dir().join("gpauth.html");
// Remove the file and error if permission denied
if let Err(err) = fs::remove_file(&html_file) {
if err.kind() != std::io::ErrorKind::NotFound {
warn!("Failed to remove the temporary file: {}", err);
bail!("Please remove the file manually: {:?}", html_file);
}
}
let mut file = fs::File::create(&html_file)?;
file.set_permissions(fs::Permissions::from_mode(0o600))?;
file.write_all(self.auth_request.as_bytes())?;
Cow::Owned(html_file.to_string_lossy().to_string())
};
if let Some(browser) = self.browser {
let app = find_browser_path(browser);
info!("Launching browser: {}", app);
open::with_detached(path.as_ref(), app)?;
} else {
info!("Launching the default browser...");
webbrowser::open(path.as_ref())?;
}
Ok(())
}
}
fn find_browser_path(browser: &str) -> String {
if browser == "chrome" {
which::which("google-chrome-stable")
.or_else(|_| which::which("google-chrome"))
.or_else(|_| which::which("chromium"))
.map(|path| path.to_string_lossy().to_string())
.unwrap_or_else(|_| browser.to_string())
} else {
browser.into()
}
}

2
crates/gpapi/src/process/mod.rs
View File

@@ -2,8 +2,6 @@ pub(crate) mod command_traits;
pub(crate) mod gui_helper_launcher;
pub mod auth_launcher;
#[cfg(feature = "browser-auth")]
pub mod browser_authenticator;
pub mod gui_launcher;
pub mod hip_launcher;
pub mod service_launcher;

2
crates/gpapi/src/service/event.rs
View File

@@ -7,6 +7,4 @@ use super::vpn_state::VpnState;
pub enum WsEvent {
VpnState(VpnState),
ActiveGui,
/// External authentication data
AuthData(String),
}

26
crates/gpapi/src/utils/window.rs
View File

@@ -7,17 +7,12 @@ use tokio::process::Command;
pub trait WindowExt {
fn raise(&self) -> anyhow::Result<()>;
fn hide_menu(&self);
}
impl WindowExt for WebviewWindow {
fn raise(&self) -> anyhow::Result<()> {
raise_window(self)
}
fn hide_menu(&self) {
hide_menu(self);
}
}
pub fn raise_window(win: &WebviewWindow) -> anyhow::Result<()> {
@@ -40,7 +35,7 @@ pub fn raise_window(win: &WebviewWindow) -> anyhow::Result<()> {
// Calling window.show() on Windows will cause the menu to be shown.
// We need to hide it again.
hide_menu(win);
win.hide_menu()?;
Ok(())
}
@@ -76,22 +71,3 @@ async fn wmctrl_try_raise_window(title: &str) -> anyhow::Result<ExitStatus> {
Ok(exit_status)
}
fn hide_menu(win: &WebviewWindow) {
// let menu_handle = win.menu_handle();
// tokio::spawn(async move {
// loop {
// let menu_visible = menu_handle.is_visible().unwrap_or(false);
// if !menu_visible {
// break;
// }
// if menu_visible {
// let _ = menu_handle.hide();
// tokio::time::sleep(Duration::from_millis(10)).await;
// }
// }
// });
}