Support SSO using default browser

.github/workflows/build.yaml

@@ -6,8 +6,8 @@ on:
       - "*.md"
       - .vscode
       - .devcontainer
-    # branches:
+    branches:
-      # - main
+      - main
     # tags:
     #   - v*.*.*
 jobs:
@@ -114,137 +114,3 @@ jobs:
           name: artifact-${{ matrix.arch }}-tauri
           path: |
             gpgui/.tmp/artifact
-
-  package-rpm:
-    needs: [setup-matrix, build-tauri]
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        arch: ${{ fromJson(needs.setup-matrix.outputs.matrix) }}
-    steps:
-      - name: Checkout gpgui repo
-        uses: actions/checkout@v4
-        with:
-          token: ${{ secrets.GH_PAT }}
-          repository: yuezk/gpgui
-          path: gpgui
-
-      - name: Download artifact-${{ matrix.arch }}
-        uses: actions/download-artifact@v4
-        with:
-          name: artifact-${{ matrix.arch }}-tauri
-          path: gpgui/.tmp/artifact
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-        with:
-          platforms: ${{ matrix.arch }}
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_TOKEN }}
-
-      - name: Create RPM package
-        run: |
-          docker run \
-            --rm \
-            -v $(pwd):/${{ github.workspace }} \
-            -w ${{ github.workspace }} \
-            --platform linux/${{ matrix.arch }} \
-            yuezk/gpdev:rpm-builder \
-            "./gpgui/scripts/build-rpm.sh"
-
-      - name: Upload rpm artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifact-${{ matrix.arch }}-rpm
-          path: |
-            gpgui/.tmp/artifact/*.rpm
-
-  package-pkgbuild:
-    needs: [setup-matrix, build-tauri]
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        arch: ${{ fromJson(needs.setup-matrix.outputs.matrix) }}
-    steps:
-      - name: Checkout gpgui repo
-        uses: actions/checkout@v4
-        with:
-          token: ${{ secrets.GH_PAT }}
-          repository: yuezk/gpgui
-          path: gpgui
-
-      - name: Download artifact-${{ matrix.arch }}
-        uses: actions/download-artifact@v4
-        with:
-          name: artifact-${{ matrix.arch }}-tauri
-          path: gpgui/.tmp/artifact
-
-      - name: Set up QEMU
-        uses: docker/setup-qemu-action@v3
-        with:
-          platforms: ${{ matrix.arch }}
-
-      - name: Login to Docker Hub
-        uses: docker/login-action@v3
-        with:
-          username: ${{ secrets.DOCKER_HUB_USERNAME }}
-          password: ${{ secrets.DOCKER_HUB_TOKEN }}
-
-      - name: Generate PKGBUILD
-        run: |
-          ./gpgui/scripts/generate-pkgbuild.sh
-
-      - name: Build PKGBUILD package
-        run: |
-          # Generate PKGBUILD to .tmp/pkgbuild
-          ./gpgui/scripts/generate-pkgbuild.sh
-
-          # Build package
-          docker run \
-            --rm \
-            -v $(pwd)/gpgui/.tmp/pkgbuild:/pkgbuild \
-            --platform linux/${{ matrix.arch }} \
-            yuezk/gpdev:pkgbuild
-
-      - name: Upload pkgbuild artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: artifact-${{ matrix.arch }}-pkgbuild
-          path: |
-            gpgui/.tmp/pkgbuild/*.pkg.tar.zst
-
-  gh-release:
-    if: startsWith(github.ref, 'refs/tags/')
-    runs-on: ubuntu-latest
-    needs:
-      - package-rpm
-      - package-pkgbuild
-
-    steps:
-      - name: Download artifact
-        uses: actions/download-artifact@v4
-        with:
-          path: artifact
-          pattern: artifact-*
-          merge-multiple: true
-
-      - name: Generate checksum
-        uses: jmgilman/actions-generate-checksum@v1
-        with:
-          output: checksums.txt
-          patterns: |
-            artifact/*
-
-      - name: Create GH release
-        uses: softprops/action-gh-release@v1
-        with:
-          token: ${{ secrets.GH_PAT }}
-          prerelease: contains(github.ref, 'latest')
-          fail_on_unmatched_files: true
-          files: |
-            checksums.txt
-            artifact/*

.vscode/settings.json

@@ -11,8 +11,10 @@
         "dotenvy",
         "getconfig",
         "globalprotect",
+        "globalprotectcallback",
         "gpapi",
         "gpauth",
+        "gpcallback",
         "gpclient",
         "gpcommon",
         "gpgui",
@@ -48,6 +50,8 @@
         "vpnc",
         "vpninfo",
         "wmctrl",
-        "XAUTHORITY"
+        "XAUTHORITY",
-    ]
+        "yuezk"
+    ],
+    "rust-analyzer.cargo.features": "all",
 }

Cargo.lock

@@ -1423,13 +1423,15 @@ dependencies = [
 
 [[package]]
 name = "gpapi"
-version = "2.0.0-beta2"
+version = "2.0.0-beta5"
 dependencies = [
  "anyhow",
  "base64 0.21.5",
  "chacha20poly1305",
+ "clap",
  "dotenvy_macro",
  "log",
+ "open",
  "redact-engine",
  "regex",
  "reqwest",
@@ -1450,7 +1452,7 @@ dependencies = [
 
 [[package]]
 name = "gpauth"
-version = "2.0.0-beta2"
+version = "2.0.0-beta5"
 dependencies = [
  "anyhow",
  "clap",
@@ -1470,7 +1472,7 @@ dependencies = [
 
 [[package]]
 name = "gpclient"
-version = "2.0.0-beta2"
+version = "2.0.0-beta5"
 dependencies = [
  "anyhow",
  "clap",
@@ -1491,7 +1493,7 @@ dependencies = [
 
 [[package]]
 name = "gpservice"
-version = "2.0.0-beta2"
+version = "2.0.0-beta5"
 dependencies = [
  "anyhow",
  "axum",
@@ -1564,9 +1566,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.22"
+version = "0.3.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d6250322ef6e60f93f9a2162799302cd6f68f79f6e5d85c8c16f14d1d958178"
+checksum = "bb2c4422095b67ee78da96fbb51a4cc413b3b25883c7717ff7ca1ab31022c9c9"
 dependencies = [
  "bytes",
  "fnv",
@@ -1583,9 +1585,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.4.0"
+version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e1d308f63daf4181410c242d34c11f928dcb3aa105852019e043c9d1f4e4368a"
+checksum = "31d030e59af851932b72ceebadf4a2b5986dba4c3b99dd2493f8273a0f151943"
 dependencies = [
  "bytes",
  "fnv",
@@ -1743,7 +1745,7 @@ dependencies = [
  "futures-channel",
  "futures-core",
  "futures-util",
- "h2 0.3.22",
+ "h2 0.3.24",
  "http 0.2.11",
  "http-body 0.4.6",
  "httparse",
@@ -1766,7 +1768,7 @@ dependencies = [
  "bytes",
  "futures-channel",
  "futures-util",
- "h2 0.4.0",
+ "h2 0.4.2",
  "http 1.0.0",
  "http-body 1.0.0",
  "httparse",
@@ -1962,6 +1964,15 @@ version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8f518f335dce6725a761382244631d86cf0ccb2863413590b31338feb467f9c3"
 
+[[package]]
+name = "is-docker"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "928bae27f42bc99b60d9ac7334e3a21d10ad8f1835a4e12ec3ec0464765ed1b3"
+dependencies = [
+ "once_cell",
+]
+
 [[package]]
 name = "is-terminal"
 version = "0.4.10"
@@ -1973,6 +1984,16 @@ dependencies = [
  "windows-sys 0.52.0",
 ]
 
+[[package]]
+name = "is-wsl"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "173609498df190136aa7dea1a91db051746d339e18476eed5ca40521f02d7aa5"
+dependencies = [
+ "is-docker",
+ "once_cell",
+]
+
 [[package]]
 name = "is_executable"
 version = "1.0.1"
@@ -2444,9 +2465,20 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
+[[package]]
+name = "open"
+version = "5.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90878fb664448b54c4e592455ad02831e23a3f7e157374a8b95654731aac7349"
+dependencies = [
+ "is-wsl",
+ "libc",
+ "pathdiff",
+]
+
 [[package]]
 name = "openconnect"
-version = "2.0.0-beta2"
+version = "2.0.0-beta5"
 dependencies = [
  "cc",
  "is_executable",
@@ -2573,6 +2605,12 @@ version = "1.0.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
 
+[[package]]
+name = "pathdiff"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8835116a5c179084a830efb3adc117ab007512b535bc1a21c991d3b32a6b44dd"
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
@@ -3070,7 +3108,7 @@ dependencies = [
  "encoding_rs",
  "futures-core",
  "futures-util",
- "h2 0.3.22",
+ "h2 0.3.24",
  "http 0.2.11",
  "http-body 0.4.6",
  "hyper 0.14.28",

Cargo.toml

@@ -4,7 +4,7 @@ resolver = "2"
 members = ["crates/*", "apps/gpclient", "apps/gpservice", "apps/gpauth"]
 
 [workspace.package]
-version = "2.0.0-beta2"
+version = "2.0.0-beta5"
 authors = ["Kevin Yue <k3vinyue@gmail.com>"]
 homepage = "https://github.com/yuezk/GlobalProtect-openconnect"
 edition = "2021"

README.md

@@ -11,6 +11,7 @@ A GUI for GlobalProtect VPN, based on OpenConnect, supports the SSO authenticati
 - [x] Better Linux support
 - [x] Support both CLI and GUI
 - [x] Support both SSO and non-SSO authentication
+- [x] Support authentication using default browser
 - [x] Support multiple portals
 - [x] Support gateway selection
 - [x] Support auto-connect on startup
@@ -33,11 +34,12 @@ Commands:
 
 Options:
       --fix-openssl        Get around the OpenSSL `unsafe legacy renegotiation` error
+      --ignore-tls-errors  Ignore the TLS errors
   -h, --help               Print help
   -V, --version            Print version
-```
 
-See `gpclient -h` for help.
+See 'gpclient help <command>' for more information on a specific command.
+```
 
 ### GUI
 
@@ -49,6 +51,15 @@ The GUI version is also available after you installed it. You can launch it from
 
 ## Installation
 
+> [!Note]
+>
+> This instruction is for the 2.x version. The 1.x version is still available on the [1.x](https://github.com/yuezk/GlobalProtect-openconnect/tree/1.x) branch, you can build it from the source code by following the instructions in the `README.md` file.
+
+> [!Warning]
+>
+> The client requires `openconnect >= 8.20`, please make sure you have it installed, you can check it with `openconnect --version`.
+> Installing the client from PPA will automatically install the required version of `openconnect`.
+
 ### Debian/Ubuntu based distributions
 
 #### Install from PPA
@@ -59,6 +70,10 @@ sudo apt-get update
 sudo apt-get install globalprotect-openconnect
 ```
 
+> [!Note]
+>
+> For Linux Mint, you might need to import the GPG key with: `sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 7937C393082992E5D6E4A60453FC26B43838D761` if you encountered an error `gpg: keyserver receive failed: General error`.
+
 #### Install from deb package
 
 Download the latest deb package from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page. Then install it with `dpkg`:
@@ -73,6 +88,10 @@ sudo dpkg -i globalprotect-openconnect_*.deb
 
 Install from AUR: [globalprotect-openconnect-git](https://aur.archlinux.org/packages/globalprotect-openconnect-git/)
 
+```
+yay -S globalprotect-openconnect-git
+```
+
 #### Install from package
 
 Download the latest package from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page. Then install it with `pacman`:
@@ -102,11 +121,7 @@ Download the latest RPM package from [releases](https://github.com/yuezk/GlobalP
 
 ### Other distributions
 
-The project depends on `openconnect`, `webkit2gtk`, `libsecret`, `libayatana-appindicator` or `libappindicator-gtk3`. You can install them first and then download the latest binary release (i.e., `*.bin.tar.gz`) from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page.
+The project depends on `openconnect >= 8.20`, `webkit2gtk`, `libsecret`, `libayatana-appindicator` or `libappindicator-gtk3`. You can install them first and then download the latest binary release (i.e., `*.bin.tar.gz`) from [releases](https://github.com/yuezk/GlobalProtect-openconnect/releases) page.
-
-### Install the Old Version (v1.4.9)
-
-The 1.x version is still available on the [1.x](https://github.com/yuezk/GlobalProtect-openconnect/tree/1.x) branch, you can build it from the source code by following the instructions in the `README.md` file.
 
 ## [License](./LICENSE)
 

apps/gpauth/Cargo.toml

@@ -8,7 +8,7 @@ license.workspace = true
 tauri-build = { version = "1.5", features = [] }
 
 [dependencies]
-gpapi = { path = "../../crates/gpapi", features = ["tauri"] }
+gpapi = { path = "../../crates/gpapi", features = ["tauri", "clap"] }
 anyhow.workspace = true
 clap.workspace = true
 env_logger.workspace = true

apps/gpauth/src/auth_window.rs

@@ -7,6 +7,7 @@ use std::{
 use anyhow::bail;
 use gpapi::{
   auth::SamlAuthData,
+  gp_params::GpParams,
   portal::{prelogin, Prelogin},
   utils::{redact::redact_uri, window::WindowExt},
 };
@@ -18,11 +19,13 @@ use tokio_util::sync::CancellationToken;
 use webkit2gtk::{
   gio::Cancellable,
   glib::{GString, TimeSpan},
-  LoadEvent, SettingsExt, URIResponse, URIResponseExt, WebContextExt, WebResource, WebResourceExt,
+  LoadEvent, SettingsExt, TLSErrorsPolicy, URIResponse, URIResponseExt, WebContextExt, WebResource,
-  WebView, WebViewExt, WebsiteDataManagerExtManual, WebsiteDataTypes,
+  WebResourceExt, WebView, WebViewExt, WebsiteDataManagerExtManual, WebsiteDataTypes,
 };
 
 enum AuthDataError {
+  /// 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,
@@ -37,6 +40,7 @@ pub(crate) struct AuthWindow<'a> {
   server: &'a str,
   saml_request: &'a str,
   user_agent: &'a str,
+  gp_params: Option<GpParams>,
   clean: bool,
 }
 
@@ -47,6 +51,7 @@ impl<'a> AuthWindow<'a> {
       server: "",
       saml_request: "",
       user_agent: "",
+      gp_params: None,
       clean: false,
     }
   }
@@ -66,6 +71,11 @@ impl<'a> AuthWindow<'a> {
     self
   }
 
+  pub fn gp_params(mut self, gp_params: GpParams) -> Self {
+    self.gp_params.replace(gp_params);
+    self
+  }
+
   pub fn clean(mut self, clean: bool) -> Self {
     self.clean = clean;
     self
@@ -119,6 +129,12 @@ impl<'a> AuthWindow<'a> {
     let saml_request = self.saml_request.to_string();
     let (auth_result_tx, mut auth_result_rx) = mpsc::unbounded_channel::<AuthResult>();
     let raise_window_cancel_token: Arc<RwLock<Option<CancellationToken>>> = Default::default();
+    let gp_params = self.gp_params.as_ref().unwrap();
+    let tls_err_policy = if gp_params.ignore_tls_errors() {
+      TLSErrorsPolicy::Ignore
+    } else {
+      TLSErrorsPolicy::Fail
+    };
 
     if self.clean {
       clear_webview_cookies(window).await?;
@@ -128,6 +144,10 @@ impl<'a> AuthWindow<'a> {
     window.with_webview(move |wv| {
       let wv = wv.inner();
 
+      if let Some(context) = wv.context() {
+        context.set_tls_errors_policy(tls_err_policy);
+      }
+
       if let Some(settings) = wv.settings() {
         let ua = settings.user_agent().unwrap_or("".into());
         info!("Auth window user agent: {}", ua);
@@ -168,31 +188,37 @@ impl<'a> AuthWindow<'a> {
         }
       });
 
-      wv.connect_load_failed_with_tls_errors(|_wv, uri, cert, err| {
+      let auth_result_tx_clone = auth_result_tx.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
         );
+
+        send_auth_result(&auth_result_tx_clone, Err(AuthDataError::TlsError));
         true
       });
 
       wv.connect_load_failed(move |_wv, _event, uri, err| {
         let redacted_uri = redact_uri(uri);
         warn!("Failed to load uri: {} with error: {}", redacted_uri, err);
-        send_auth_result(&auth_result_tx, Err(AuthDataError::Invalid));
+        // NOTE: Don't send error here, since load_changed event will be triggered after this
+        // send_auth_result(&auth_result_tx, Err(AuthDataError::Invalid));
         // true to stop other handlers from being invoked for the event. false to propagate the event further.
         true
       });
     })?;
 
     let portal = self.server.to_string();
-    let user_agent = self.user_agent.to_string();
 
     loop {
       if let Some(auth_result) = auth_result_rx.recv().await {
         match auth_result {
           Ok(auth_data) => return Ok(auth_data),
+          Err(AuthDataError::TlsError) => {
+            return Err(anyhow::anyhow!("TLS error: certificate verify failed"))
+          }
           Err(AuthDataError::NotFound) => {
             info!("No auth data found, it may not be the /SAML20/SP/ACS endpoint");
 
@@ -237,7 +263,7 @@ impl<'a> AuthWindow<'a> {
               );
             })?;
 
-            let saml_request = portal_prelogin(&portal, &user_agent).await?;
+            let saml_request = portal_prelogin(&portal, gp_params).await?;
             window.with_webview(move |wv| {
               let wv = wv.inner();
               load_saml_request(&wv, &saml_request);
@@ -258,9 +284,10 @@ fn raise_window(window: &Arc<Window>) {
   }
 }
 
-pub(crate) async fn portal_prelogin(portal: &str, user_agent: &str) -> anyhow::Result<String> {
+pub(crate) async fn portal_prelogin(portal: &str, gp_params: &GpParams) -> anyhow::Result<String> {
   info!("Portal prelogin...");
-  match prelogin(portal, user_agent).await? {
+
+  match prelogin(portal, gp_params).await? {
     Prelogin::Saml(prelogin) => Ok(prelogin.saml_request().to_string()),
     Prelogin::Standard(_) => Err(anyhow::anyhow!("Received non-SAML prelogin response")),
   }
@@ -397,6 +424,11 @@ fn read_auth_data(main_resource: &WebResource, auth_result_tx: mpsc::UnboundedSe
         send_auth_result(&auth_result_tx, auth_result)
       });
     }
+    Err(AuthDataError::TlsError) => {
+      // NOTE: This is unreachable
+      info!("TLS error found in headers, trying to read from body...");
+      send_auth_result(&auth_result_tx, Err(AuthDataError::TlsError));
+    }
   }
 }
 

apps/gpauth/src/cli.rs

@@ -1,6 +1,8 @@
 use clap::Parser;
 use gpapi::{
   auth::{SamlAuthData, SamlAuthResult},
+  clap::args::Os,
+  gp_params::{ClientOs, GpParams},
   utils::{normalize_server, openssl},
   GP_USER_AGENT,
 };
@@ -26,23 +28,35 @@ struct Cli {
   saml_request: Option<String>,
   #[arg(long, default_value = GP_USER_AGENT)]
   user_agent: String,
+  #[arg(long, default_value = "Linux")]
+  os: Os,
+  #[arg(long)]
+  os_version: Option<String>,
   #[arg(long)]
   hidpi: bool,
   #[arg(long)]
   fix_openssl: bool,
   #[arg(long)]
+  ignore_tls_errors: bool,
+  #[arg(long)]
   clean: bool,
 }
 
 impl Cli {
   async fn run(&mut self) -> anyhow::Result<()> {
+    if self.ignore_tls_errors {
+      info!("TLS errors will be ignored");
+    }
+
     let mut openssl_conf = self.prepare_env()?;
 
     self.server = normalize_server(&self.server)?;
+    let gp_params = self.build_gp_params();
+
     // Get the initial SAML request
     let saml_request = match self.saml_request {
       Some(ref saml_request) => saml_request.clone(),
-      None => portal_prelogin(&self.server, &self.user_agent).await?,
+      None => portal_prelogin(&self.server, &gp_params).await?,
     };
 
     self.saml_request.replace(saml_request);
@@ -82,10 +96,22 @@ impl Cli {
     Ok(None)
   }
 
+  fn build_gp_params(&self) -> GpParams {
+    let gp_params = GpParams::builder()
+      .user_agent(&self.user_agent)
+      .client_os(ClientOs::from(&self.os))
+      .os_version(self.os_version.clone())
+      .ignore_tls_errors(self.ignore_tls_errors)
+      .build();
+
+    gp_params
+  }
+
   async fn saml_auth(&self, app_handle: AppHandle) -> anyhow::Result<SamlAuthData> {
     let auth_window = AuthWindow::new(app_handle)
       .server(&self.server)
       .user_agent(&self.user_agent)
+      .gp_params(self.build_gp_params())
       .saml_request(self.saml_request.as_ref().unwrap())
       .clean(self.clean);
 

apps/gpclient/Cargo.toml

@@ -6,7 +6,7 @@ edition.workspace = true
 license.workspace = true
 
 [dependencies]
-gpapi = { path = "../../crates/gpapi" }
+gpapi = { path = "../../crates/gpapi", features = ["clap"] }
 openconnect = { path = "../../crates/openconnect" }
 anyhow.workspace = true
 clap.workspace = true

apps/gpclient/src/cli.rs

@@ -16,6 +16,11 @@ const VERSION: &str = concat!(
   ")"
 );
 
+pub(crate) struct SharedArgs {
+  pub(crate) fix_openssl: bool,
+  pub(crate) ignore_tls_errors: bool,
+}
+
 #[derive(Subcommand)]
 enum CliCommand {
   #[command(about = "Connect to a portal server")]
@@ -40,6 +45,8 @@ enum CliCommand {
 {usage-heading} {usage}
 
 {all-args}{after-help}
+
+See 'gpclient help <command>' for more information on a specific command.
 "
 )]
 struct Cli {
@@ -51,6 +58,8 @@ struct Cli {
     help = "Get around the OpenSSL `unsafe legacy renegotiation` error"
   )]
   fix_openssl: bool,
+  #[arg(long, help = "Ignore the TLS errors")]
+  ignore_tls_errors: bool,
 }
 
 impl Cli {
@@ -67,9 +76,17 @@ impl Cli {
     // The temp file will be dropped automatically when the file handle is dropped
     // So, declare it here to ensure it's not dropped
     let _file = self.fix_openssl()?;
+    let shared_args = SharedArgs {
+      fix_openssl: self.fix_openssl,
+      ignore_tls_errors: self.ignore_tls_errors,
+    };
+
+    if self.ignore_tls_errors {
+      info!("TLS errors will be ignored");
+    }
 
     match &self.command {
-      CliCommand::Connect(args) => ConnectHandler::new(args, self.fix_openssl).handle().await,
+      CliCommand::Connect(args) => ConnectHandler::new(args, &shared_args).handle().await,
       CliCommand::Disconnect => DisconnectHandler::new().handle(),
       CliCommand::LaunchGui(args) => LaunchGuiHandler::new(args).handle().await,
     }
@@ -89,13 +106,24 @@ pub(crate) async fn run() {
   if let Err(err) = cli.run().await {
     eprintln!("\nError: {}", err);
 
-    if err.to_string().contains("unsafe legacy renegotiation") && !cli.fix_openssl {
+    let err = err.to_string();
+
+    if err.contains("unsafe legacy renegotiation") && !cli.fix_openssl {
       eprintln!("\nRe-run it with the `--fix-openssl` option to work around this issue, e.g.:\n");
       // Print the command
       let args = std::env::args().collect::<Vec<_>>();
       eprintln!("{} --fix-openssl {}\n", args[0], args[1..].join(" "));
     }
 
+    if err.contains("certificate verify failed") {
+      eprintln!(
+        "\nRe-run it with the `--ignore-tls-errors` option to ignore the certificate error, e.g.:\n"
+      );
+      // Print the command
+      let args = std::env::args().collect::<Vec<_>>();
+      eprintln!("{} --ignore-tls-errors {}\n", args[0], args[1..].join(" "));
+    }
+
     std::process::exit(1);
   }
 }

apps/gpclient/src/connect.rs

@@ -2,9 +2,10 @@ use std::{fs, sync::Arc};
 
 use clap::Args;
 use gpapi::{
+  clap::args::Os,
   credential::{Credential, PasswordCredential},
   gateway::gateway_login,
-  gp_params::GpParams,
+  gp_params::{ClientOs, GpParams},
   portal::{prelogin, retrieve_config, Prelogin},
   process::auth_launcher::SamlAuthLauncher,
   utils::{self, shutdown_signal},
@@ -14,7 +15,7 @@ use inquire::{Password, PasswordDisplayMode, Select, Text};
 use log::info;
 use openconnect::Vpn;
 
-use crate::GP_CLIENT_LOCK_FILE;
+use crate::{cli::SharedArgs, GP_CLIENT_LOCK_FILE};
 
 #[derive(Args)]
 pub(crate) struct ConnectArgs {
@@ -36,20 +37,38 @@ pub(crate) struct ConnectArgs {
   script: Option<String>,
   #[arg(long, default_value = GP_USER_AGENT, help = "The user agent to use")]
   user_agent: String,
+  #[arg(long, default_value = "Linux")]
+  os: Os,
+  #[arg(long)]
+  os_version: Option<String>,
   #[arg(long, help = "The HiDPI mode, useful for high resolution screens")]
   hidpi: bool,
   #[arg(long, help = "Do not reuse the remembered authentication cookie")]
   clean: bool,
 }
 
+impl ConnectArgs {
+  fn os_version(&self) -> String {
+    if let Some(os_version) = &self.os_version {
+      return os_version.to_owned();
+    }
+
+    match self.os {
+      Os::Linux => format!("Linux {}", whoami::distro()),
+      Os::Windows => String::from("Microsoft Windows 11 Pro , 64-bit"),
+      Os::Mac => String::from("Apple Mac OS X 13.4.0"),
+    }
+  }
+}
+
 pub(crate) struct ConnectHandler<'a> {
   args: &'a ConnectArgs,
-  fix_openssl: bool,
+  shared_args: &'a SharedArgs,
 }
 
 impl<'a> ConnectHandler<'a> {
-  pub(crate) fn new(args: &'a ConnectArgs, fix_openssl: bool) -> Self {
+  pub(crate) fn new(args: &'a ConnectArgs, shared_args: &'a SharedArgs) -> Self {
-    Self { args, fix_openssl }
+    Self { args, shared_args }
   }
 
   pub(crate) async fn handle(&self) -> anyhow::Result<()> {
@@ -57,9 +76,12 @@ impl<'a> ConnectHandler<'a> {
 
     let gp_params = GpParams::builder()
       .user_agent(&self.args.user_agent)
+      .client_os(ClientOs::from(&self.args.os))
+      .os_version(self.args.os_version())
+      .ignore_tls_errors(self.shared_args.ignore_tls_errors)
       .build();
 
-    let prelogin = prelogin(&portal, &self.args.user_agent).await?;
+    let prelogin = prelogin(&portal, &gp_params).await?;
     let portal_credential = self.obtain_portal_credential(&prelogin).await?;
     let mut portal_config = retrieve_config(&portal, &portal_credential, &gp_params).await?;
 
@@ -114,10 +136,13 @@ impl<'a> ConnectHandler<'a> {
     match prelogin {
       Prelogin::Saml(prelogin) => {
         SamlAuthLauncher::new(&self.args.server)
-          .user_agent(&self.args.user_agent)
           .saml_request(prelogin.saml_request())
+          .user_agent(&self.args.user_agent)
+          .os(self.args.os.as_str())
+          .os_version(Some(&self.args.os_version()))
           .hidpi(self.args.hidpi)
-          .fix_openssl(self.fix_openssl)
+          .fix_openssl(self.shared_args.fix_openssl)
+          .ignore_tls_errors(self.shared_args.ignore_tls_errors)
           .clean(self.args.clean)
           .launch()
           .await

apps/gpclient/src/launch_gui.rs

@@ -10,7 +10,12 @@ use log::info;
 
 #[derive(Args)]
 pub(crate) struct LaunchGuiArgs {
-  #[clap(long, help = "Launch the GUI minimized")]
+  #[arg(
+    required = false,
+    help = "The authentication data, used for the default browser authentication"
+  )]
+  auth_data: Option<String>,
+  #[arg(long, help = "Launch the GUI minimized")]
   minimized: bool,
 }
 
@@ -30,6 +35,12 @@ impl<'a> LaunchGuiHandler<'a> {
       anyhow::bail!("`launch-gui` cannot be run as root");
     }
 
+    let auth_data = self.args.auth_data.as_deref().unwrap_or_default();
+    if !auth_data.is_empty() {
+      // Process the authentication data, its format is `globalprotectcallback:<data>`
+      return feed_auth_data(auth_data).await;
+    }
+
     if try_active_gui().await.is_ok() {
       info!("The GUI is already running");
       return Ok(());
@@ -66,6 +77,19 @@ impl<'a> LaunchGuiHandler<'a> {
   }
 }
 
+async fn feed_auth_data(auth_data: &str) -> anyhow::Result<()> {
+  let service_endpoint = http_endpoint().await?;
+
+  reqwest::Client::default()
+    .post(format!("{}/auth-data", service_endpoint))
+    .json(&auth_data)
+    .send()
+    .await?
+    .error_for_status()?;
+
+  Ok(())
+}
+
 async fn try_active_gui() -> anyhow::Result<()> {
   let service_endpoint = http_endpoint().await?;
 

apps/gpservice/com.yuezk.gpservice.policy

@@ -1,19 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN" "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
-<policyconfig>
-  <vendor>GlobalProtect-openconnect</vendor>
-  <vendor_url>https://github.com/yuezk/GlobalProtect-openconnect</vendor_url>
-  <icon_name>gpgui</icon_name>
-  <action id="com.yuezk.gpservice">
-    <description>Run GPService as root</description>
-    <message>Authentication is required to run the GPService as root</message>
-    <defaults>
-      <allow_any>yes</allow_any>
-      <allow_inactive>yes</allow_inactive>
-      <allow_active>yes</allow_active>
-    </defaults>
-    <annotate key="org.freedesktop.policykit.exec.path">/home/kevin/Documents/repos/gp/target/debug/gpservice</annotate>
-    <annotate key="org.freedesktop.policykit.exec.argv1">--with-gui</annotate>
-    <annotate key="org.freedesktop.policykit.exec.allow_gui">true</annotate>
-  </action>
-</policyconfig>

apps/gpservice/src/handlers.rs

@@ -21,6 +21,13 @@ pub(crate) async fn active_gui(State(ctx): State<Arc<WsServerContext>>) -> impl
   ctx.send_event(WsEvent::ActiveGui).await;
 }
 
+pub(crate) async fn auth_data(
+  State(ctx): State<Arc<WsServerContext>>,
+  body: String,
+) -> impl IntoResponse {
+  ctx.send_event(WsEvent::AuthData(body)).await;
+}
+
 pub(crate) async fn ws_handler(
   ws: WebSocketUpgrade,
   State(ctx): State<Arc<WsServerContext>>,

apps/gpservice/src/routes.rs

@@ -8,6 +8,7 @@ pub(crate) fn routes(ctx: Arc<WsServerContext>) -> Router {
   Router::new()
     .route("/health", get(handlers::health))
     .route("/active-gui", post(handlers::active_gui))
+    .route("/auth-data", post(handlers::auth_data))
     .route("/ws", get(handlers::ws_handler))
     .with_state(ctx)
 }

crates/gpapi/Cargo.toml

@@ -27,6 +27,10 @@ dotenvy_macro.workspace = true
 uzers.workspace = true
 
 tauri = { workspace = true, optional = true }
+clap = { workspace = true, optional = true }
+open = { version = "5", optional = true }
 
 [features]
 tauri = ["dep:tauri"]
+clap = ["dep:clap"]
+browser-auth = ["dep:open"]

crates/gpapi/src/auth.rs

@@ -1,3 +1,5 @@
+use anyhow::bail;
+use regex::Regex;
 use serde::{Deserialize, Serialize};
 
 #[derive(Debug, Serialize, Deserialize)]
@@ -37,6 +39,32 @@ impl SamlAuthData {
     }
   }
 
+  pub fn parse_html(html: &str) -> anyhow::Result<SamlAuthData> {
+    match parse_xml_tag(html, "saml-auth-status") {
+      Some(saml_status) if saml_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) {
+          return Ok(SamlAuthData::new(
+            username.unwrap(),
+            prelogin_cookie,
+            portal_userauthcookie,
+          ));
+        }
+
+        bail!("Found invalid auth data in HTML");
+      }
+      Some(status) => {
+        bail!("Found invalid SAML status {} in HTML", status);
+      }
+      None => {
+        bail!("No auth data found in HTML");
+      }
+    }
+  }
+
   pub fn username(&self) -> &str {
     &self.username
   }
@@ -61,3 +89,10 @@ impl SamlAuthData {
     username_valid && (prelogin_cookie_valid || portal_userauthcookie_valid)
   }
 }
+
+pub fn parse_xml_tag(html: &str, tag: &str) -> Option<String> {
+  let re = Regex::new(&format!("<{}>(.*)</{}>", tag, tag)).unwrap();
+  re.captures(html)
+    .and_then(|captures| captures.get(1))
+    .map(|m| m.as_str().to_string())
+}

crates/gpapi/src/clap/args.rs

@@ -0,0 +1,64 @@
+use clap::{builder::PossibleValue, ValueEnum};
+
+use crate::gp_params::ClientOs;
+
+#[derive(Debug, Clone)]
+pub enum Os {
+  Linux,
+  Windows,
+  Mac,
+}
+
+impl Os {
+  pub fn as_str(&self) -> &'static str {
+    match self {
+      Os::Linux => "Linux",
+      Os::Windows => "Windows",
+      Os::Mac => "Mac",
+    }
+  }
+}
+
+impl From<&str> for Os {
+  fn from(os: &str) -> Self {
+    match os.to_lowercase().as_str() {
+      "linux" => Os::Linux,
+      "windows" => Os::Windows,
+      "mac" => Os::Mac,
+      _ => Os::Linux,
+    }
+  }
+}
+
+impl From<&Os> for ClientOs {
+  fn from(value: &Os) -> Self {
+    match value {
+      Os::Linux => ClientOs::Linux,
+      Os::Windows => ClientOs::Windows,
+      Os::Mac => ClientOs::Mac,
+    }
+  }
+}
+
+impl ValueEnum for Os {
+  fn value_variants<'a>() -> &'a [Self] {
+    &[Os::Linux, Os::Windows, Os::Mac]
+  }
+
+  fn to_possible_value(&self) -> Option<clap::builder::PossibleValue> {
+    match self {
+      Os::Linux => Some(PossibleValue::new("Linux")),
+      Os::Windows => Some(PossibleValue::new("Windows")),
+      Os::Mac => Some(PossibleValue::new("Mac")),
+    }
+  }
+
+  fn from_str(input: &str, _: bool) -> Result<Self, String> {
+    match input.to_lowercase().as_str() {
+      "linux" => Ok(Os::Linux),
+      "windows" => Ok(Os::Windows),
+      "mac" => Ok(Os::Mac),
+      _ => Err(format!("Invalid OS: {}", input)),
+    }
+  }
+}

crates/gpapi/src/clap/mod.rs

@@ -0,0 +1 @@
+pub mod args;

crates/gpapi/src/credential.rs

@@ -3,7 +3,7 @@ use std::collections::HashMap;
 use serde::{Deserialize, Serialize};
 use specta::Type;
 
-use crate::auth::SamlAuthData;
+use crate::{auth::SamlAuthData, utils::base64::decode_to_string};
 
 #[derive(Debug, Serialize, Deserialize, Type, Clone)]
 #[serde(rename_all = "camelCase")]
@@ -151,6 +151,17 @@ pub enum Credential {
 }
 
 impl Credential {
+  /// Create a credential from a globalprotectcallback:<base64 encoded string>
+  pub fn parse_gpcallback(auth_data: &str) -> anyhow::Result<Self> {
+    // Remove the surrounding quotes
+    let auth_data = auth_data.trim_matches('"');
+    let auth_data = auth_data.trim_start_matches("globalprotectcallback:");
+    let auth_data = decode_to_string(auth_data)?;
+    let auth_data = SamlAuthData::parse_html(&auth_data)?;
+
+    Self::try_from(auth_data)
+  }
+
   pub fn username(&self) -> &str {
     match self {
       Credential::Password(cred) => cred.username(),
@@ -164,31 +175,34 @@ impl Credential {
     let mut params = HashMap::new();
     params.insert("user", self.username());
 
-    match self {
+    let (passwd, prelogin_cookie, portal_userauthcookie, portal_prelogonuserauthcookie) = match self
-      Credential::Password(cred) => {
+    {
-        params.insert("passwd", cred.password());
+      Credential::Password(cred) => (Some(cred.password()), None, None, None),
-      }
+      Credential::PreloginCookie(cred) => (None, Some(cred.prelogin_cookie()), None, None),
-      Credential::PreloginCookie(cred) => {
+      Credential::AuthCookie(cred) => (
-        params.insert("prelogin-cookie", cred.prelogin_cookie());
+        None,
-      }
+        None,
-      Credential::AuthCookie(cred) => {
+        Some(cred.user_auth_cookie()),
-        params.insert("portal-userauthcookie", cred.user_auth_cookie());
+        Some(cred.prelogon_user_auth_cookie()),
+      ),
+      Credential::CachedCredential(cred) => (
+        cred.password(),
+        None,
+        Some(cred.auth_cookie.user_auth_cookie()),
+        Some(cred.auth_cookie.prelogon_user_auth_cookie()),
+      ),
+    };
+
+    params.insert("passwd", passwd.unwrap_or_default());
+    params.insert("prelogin-cookie", prelogin_cookie.unwrap_or_default());
+    params.insert(
+      "portal-userauthcookie",
+      portal_userauthcookie.unwrap_or_default(),
+    );
     params.insert(
       "portal-prelogonuserauthcookie",
-          cred.prelogon_user_auth_cookie(),
+      portal_prelogonuserauthcookie.unwrap_or_default(),
     );
-      }
-      Credential::CachedCredential(cred) => {
-        if let Some(password) = cred.password() {
-          params.insert("passwd", password);
-        }
-        params.insert("portal-userauthcookie", cred.auth_cookie.user_auth_cookie());
-        params.insert(
-          "portal-prelogonuserauthcookie",
-          cred.auth_cookie.prelogon_user_auth_cookie(),
-        );
-      }
-    }
 
     params
   }

crates/gpapi/src/gateway/login.rs

@@ -23,14 +23,8 @@ pub async fn gateway_login(
 
   info!("Gateway login, user_agent: {}", gp_params.user_agent());
 
-  let res_xml = client
+  let res = client.post(&login_url).form(&params).send().await?;
-    .post(&login_url)
+  let res_xml = res.error_for_status()?.text().await?;
-    .form(&params)
-    .send()
-    .await?
-    .error_for_status()?
-    .text()
-    .await?;
 
   let doc = Document::parse(&res_xml)?;
 

crates/gpapi/src/gp_params.rs

@@ -7,23 +7,32 @@ use crate::GP_USER_AGENT;
 
 #[derive(Debug, Serialize, Deserialize, Clone, Type, Default)]
 pub enum ClientOs {
-  Linux,
   #[default]
+  Linux,
   Windows,
   Mac,
 }
 
-impl From<&ClientOs> for &str {
+impl From<&str> for ClientOs {
-  fn from(os: &ClientOs) -> Self {
+  fn from(os: &str) -> Self {
     match os {
-      ClientOs::Linux => "Linux",
+      "Linux" => ClientOs::Linux,
-      ClientOs::Windows => "Windows",
+      "Windows" => ClientOs::Windows,
-      ClientOs::Mac => "Mac",
+      "Mac" => ClientOs::Mac,
+      _ => ClientOs::Linux,
     }
   }
 }
 
 impl ClientOs {
+  pub fn as_str(&self) -> &str {
+    match self {
+      ClientOs::Linux => "Linux",
+      ClientOs::Windows => "Windows",
+      ClientOs::Mac => "Mac",
+    }
+  }
+
   pub fn to_openconnect_os(&self) -> &str {
     match self {
       ClientOs::Linux => "linux",
@@ -39,7 +48,9 @@ pub struct GpParams {
   client_os: ClientOs,
   os_version: Option<String>,
   client_version: Option<String>,
-  computer: Option<String>,
+  computer: String,
+  ignore_tls_errors: bool,
+  prefer_default_browser: bool,
 }
 
 impl GpParams {
@@ -52,15 +63,20 @@ impl GpParams {
   }
 
   pub(crate) fn computer(&self) -> &str {
-    match self.computer {
+    &self.computer
-      Some(ref computer) => computer,
-      None => (&self.client_os).into()
   }
+
+  pub fn ignore_tls_errors(&self) -> bool {
+    self.ignore_tls_errors
+  }
+
+  pub fn prefer_default_browser(&self) -> bool {
+    self.prefer_default_browser
   }
 
   pub(crate) fn to_params(&self) -> HashMap<&str, &str> {
     let mut params: HashMap<&str, &str> = HashMap::new();
-    let client_os: &str = (&self.client_os).into();
+    let client_os = self.client_os.as_str();
 
     // Common params
     params.insert("prot", "https:");
@@ -70,22 +86,17 @@ impl GpParams {
     params.insert("ipv6-support", "yes");
     params.insert("inputStr", "");
     params.insert("clientVer", "4100");
-
     params.insert("clientos", client_os);
-
+    params.insert("computer", &self.computer);
-    if let Some(computer) = &self.computer {
-      params.insert("computer", computer);
-    } else {
-      params.insert("computer", client_os);
-    }
 
     if let Some(os_version) = &self.os_version {
       params.insert("os-version", os_version);
     }
 
-    if let Some(client_version) = &self.client_version {
+    // NOTE: Do not include clientgpversion for now
-      params.insert("clientgpversion", client_version);
+    // if let Some(client_version) = &self.client_version {
-    }
+    //   params.insert("clientgpversion", client_version);
+    // }
 
     params
   }
@@ -96,7 +107,9 @@ pub struct GpParamsBuilder {
   client_os: ClientOs,
   os_version: Option<String>,
   client_version: Option<String>,
-  computer: Option<String>,
+  computer: String,
+  ignore_tls_errors: bool,
+  prefer_default_browser: bool,
 }
 
 impl GpParamsBuilder {
@@ -106,7 +119,9 @@ impl GpParamsBuilder {
       client_os: ClientOs::Linux,
       os_version: Default::default(),
       client_version: Default::default(),
-      computer: Default::default(),
+      computer: whoami::hostname(),
+      ignore_tls_errors: false,
+      prefer_default_browser: false,
     }
   }
 
@@ -120,18 +135,28 @@ impl GpParamsBuilder {
     self
   }
 
-  pub fn os_version(&mut self, os_version: &str) -> &mut Self {
+  pub fn os_version<T: Into<Option<String>>>(&mut self, os_version: T) -> &mut Self {
-    self.os_version = Some(os_version.to_string());
+    self.os_version = os_version.into();
     self
   }
 
-  pub fn client_version(&mut self, client_version: &str) -> &mut Self {
+  pub fn client_version<T: Into<Option<String>>>(&mut self, client_version: T) -> &mut Self {
-    self.client_version = Some(client_version.to_string());
+    self.client_version = client_version.into();
     self
   }
 
   pub fn computer(&mut self, computer: &str) -> &mut Self {
-    self.computer = Some(computer.to_string());
+    self.computer = computer.to_string();
+    self
+  }
+
+  pub fn ignore_tls_errors(&mut self, ignore_tls_errors: bool) -> &mut Self {
+    self.ignore_tls_errors = ignore_tls_errors;
+    self
+  }
+
+  pub fn prefer_default_browser(&mut self, prefer_default_browser: bool) -> &mut Self {
+    self.prefer_default_browser = prefer_default_browser;
     self
   }
 
@@ -142,6 +167,8 @@ impl GpParamsBuilder {
       os_version: self.os_version.clone(),
       client_version: self.client_version.clone(),
       computer: self.computer.clone(),
+      ignore_tls_errors: self.ignore_tls_errors,
+      prefer_default_browser: self.prefer_default_browser,
     }
   }
 }

crates/gpapi/src/lib.rs

@@ -7,12 +7,17 @@ pub mod process;
 pub mod service;
 pub mod utils;
 
+#[cfg(feature = "clap")]
+pub mod clap;
+
 #[cfg(debug_assertions)]
 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";
 
+#[cfg(not(debug_assertions))]
+pub const GP_CLIENT_BINARY: &str = "/usr/bin/gpclient";
 #[cfg(not(debug_assertions))]
 pub const GP_SERVICE_BINARY: &str = "/usr/bin/gpservice";
 #[cfg(not(debug_assertions))]
@@ -20,6 +25,8 @@ pub const GP_GUI_BINARY: &str = "/usr/bin/gpgui";
 #[cfg(not(debug_assertions))]
 pub(crate) const GP_AUTH_BINARY: &str = "/usr/bin/gpauth";
 
+#[cfg(debug_assertions)]
+pub const GP_CLIENT_BINARY: &str = dotenvy_macro::dotenv!("GP_CLIENT_BINARY");
 #[cfg(debug_assertions)]
 pub const GP_SERVICE_BINARY: &str = dotenvy_macro::dotenv!("GP_SERVICE_BINARY");
 #[cfg(debug_assertions)]

crates/gpapi/src/portal/config.rs

@@ -132,14 +132,8 @@ pub async fn retrieve_config(
 
   info!("Portal config, user_agent: {}", gp_params.user_agent());
 
-  let res_xml = client
+  let res = client.post(&url).form(&params).send().await?;
-    .post(&url)
+  let res_xml = res.error_for_status()?.text().await?;
-    .form(&params)
-    .send()
-    .await?
-    .error_for_status()?
-    .text()
-    .await?;
 
   ensure!(!res_xml.is_empty(), PortalConfigError::EmptyResponse);
 

crates/gpapi/src/portal/prelogin.rs

@@ -5,13 +5,28 @@ use roxmltree::Document;
 use serde::Serialize;
 use specta::Type;
 
-use crate::utils::{base64, normalize_server, xml};
+use crate::{
+  gp_params::GpParams,
+  utils::{base64, normalize_server, xml},
+};
+
+const REQUIRED_PARAMS: [&str; 8] = [
+  "tmp",
+  "clientVer",
+  "clientos",
+  "os-version",
+  "host-id",
+  "ipv6-support",
+  "default-browser",
+  "cas-support",
+];
 
 #[derive(Debug, Serialize, Type, Clone)]
 #[serde(rename_all = "camelCase")]
 pub struct SamlPrelogin {
   region: String,
   saml_request: String,
+  support_default_browser: bool,
 }
 
 impl SamlPrelogin {
@@ -22,6 +37,10 @@ impl SamlPrelogin {
   pub fn saml_request(&self) -> &str {
     &self.saml_request
   }
+
+  pub fn support_default_browser(&self) -> bool {
+    self.support_default_browser
+  }
 }
 
 #[derive(Debug, Serialize, Type, Clone)]
@@ -67,20 +86,33 @@ impl Prelogin {
   }
 }
 
-pub async fn prelogin(portal: &str, user_agent: &str) -> anyhow::Result<Prelogin> {
+pub async fn prelogin(portal: &str, gp_params: &GpParams) -> anyhow::Result<Prelogin> {
+  let user_agent = gp_params.user_agent();
   info!("Portal prelogin, user_agent: {}", user_agent);
 
   let portal = normalize_server(portal)?;
   let prelogin_url = format!("{}/global-protect/prelogin.esp", portal);
-  let client = Client::builder().user_agent(user_agent).build()?;
+  let mut params = gp_params.to_params();
 
-  let res_xml = client
+  params.insert("tmp", "tmp");
-    .get(&prelogin_url)
+  params.insert("cas-support", "yes");
-    .send()
+  if gp_params.prefer_default_browser() {
-    .await?
+    params.insert("default-browser", "1");
-    .error_for_status()?
+  }
-    .text()
+
-    .await?;
+  params.retain(|k, _| {
+    REQUIRED_PARAMS
+      .iter()
+      .any(|required_param| required_param == k)
+  });
+
+  let client = Client::builder()
+    .danger_accept_invalid_certs(gp_params.ignore_tls_errors())
+    .user_agent(user_agent)
+    .build()?;
+
+  let res = client.post(&prelogin_url).form(&params).send().await?;
+  let res_xml = res.error_for_status()?.text().await?;
 
   trace!("Prelogin response: {}", res_xml);
   let doc = Document::parse(&res_xml)?;
@@ -98,12 +130,18 @@ pub async fn prelogin(portal: &str, user_agent: &str) -> anyhow::Result<Prelogin
 
   let saml_method = xml::get_child_text(&doc, "saml-auth-method");
   let saml_request = xml::get_child_text(&doc, "saml-request");
+  let saml_default_browser = xml::get_child_text(&doc, "saml-default-browser");
   // Check if the prelogin response is SAML
   if saml_method.is_some() && saml_request.is_some() {
     let saml_request = base64::decode_to_string(&saml_request.unwrap())?;
+    let support_default_browser = saml_default_browser
+      .map(|s| s.to_lowercase() == "yes")
+      .unwrap_or(false);
+
     let saml_prelogin = SamlPrelogin {
       region,
       saml_request,
+      support_default_browser,
     };
 
     return Ok(Prelogin::Saml(saml_prelogin));

crates/gpapi/src/process/auth_launcher.rs

@@ -8,10 +8,13 @@ use super::command_traits::CommandExt;
 
 pub struct SamlAuthLauncher<'a> {
   server: &'a str,
-  user_agent: Option<&'a str>,
   saml_request: Option<&'a str>,
+  user_agent: Option<&'a str>,
+  os: Option<&'a str>,
+  os_version: Option<&'a str>,
   hidpi: bool,
   fix_openssl: bool,
+  ignore_tls_errors: bool,
   clean: bool,
 }
 
@@ -19,21 +22,34 @@ impl<'a> SamlAuthLauncher<'a> {
   pub fn new(server: &'a str) -> Self {
     Self {
       server,
-      user_agent: None,
       saml_request: None,
+      user_agent: None,
+      os: None,
+      os_version: None,
       hidpi: false,
       fix_openssl: false,
+      ignore_tls_errors: false,
       clean: false,
     }
   }
 
+  pub fn saml_request(mut self, saml_request: &'a str) -> Self {
+    self.saml_request = Some(saml_request);
+    self
+  }
+
   pub fn user_agent(mut self, user_agent: &'a str) -> Self {
     self.user_agent = Some(user_agent);
     self
   }
 
-  pub fn saml_request(mut self, saml_request: &'a str) -> Self {
+  pub fn os(mut self, os: &'a str) -> Self {
-    self.saml_request = Some(saml_request);
+    self.os = Some(os);
+    self
+  }
+
+  pub fn os_version(mut self, os_version: Option<&'a str>) -> Self {
+    self.os_version = os_version;
     self
   }
 
@@ -47,6 +63,11 @@ impl<'a> SamlAuthLauncher<'a> {
     self
   }
 
+  pub fn ignore_tls_errors(mut self, ignore_tls_errors: bool) -> Self {
+    self.ignore_tls_errors = ignore_tls_errors;
+    self
+  }
+
   pub fn clean(mut self, clean: bool) -> Self {
     self.clean = clean;
     self
@@ -57,20 +78,32 @@ impl<'a> SamlAuthLauncher<'a> {
     let mut auth_cmd = Command::new(GP_AUTH_BINARY);
     auth_cmd.arg(self.server);
 
+    if let Some(saml_request) = self.saml_request {
+      auth_cmd.arg("--saml-request").arg(saml_request);
+    }
+
     if let Some(user_agent) = self.user_agent {
       auth_cmd.arg("--user-agent").arg(user_agent);
     }
 
-    if let Some(saml_request) = self.saml_request {
+    if let Some(os) = self.os {
-      auth_cmd.arg("--saml-request").arg(saml_request);
+      auth_cmd.arg("--os").arg(os);
+    }
+
+    if let Some(os_version) = self.os_version {
+      auth_cmd.arg("--os-version").arg(os_version);
+    }
+
+    if self.hidpi {
+      auth_cmd.arg("--hidpi");
     }
 
     if self.fix_openssl {
       auth_cmd.arg("--fix-openssl");
     }
 
-    if self.hidpi {
+    if self.ignore_tls_errors {
-      auth_cmd.arg("--hidpi");
+      auth_cmd.arg("--ignore-tls-errors");
     }
 
     if self.clean {

crates/gpapi/src/process/browser_authenticator.rs

@@ -0,0 +1,34 @@
+use std::{env::temp_dir, io::Write};
+
+pub struct BrowserAuthenticator<'a> {
+  auth_request: &'a str,
+}
+
+impl BrowserAuthenticator<'_> {
+  pub fn new(auth_request: &str) -> BrowserAuthenticator {
+    BrowserAuthenticator { auth_request }
+  }
+
+  pub fn authenticate(&self) -> anyhow::Result<()> {
+    if self.auth_request.starts_with("http") {
+      open::that_detached(self.auth_request)?;
+    } else {
+      let html_file = temp_dir().join("gpauth.html");
+      let mut file = std::fs::File::create(&html_file)?;
+
+      file.write_all(self.auth_request.as_bytes())?;
+
+      open::that_detached(html_file)?;
+    }
+
+    Ok(())
+  }
+}
+
+impl Drop for BrowserAuthenticator<'_> {
+  fn drop(&mut self) {
+    // Cleanup the temporary file
+    let html_file = temp_dir().join("gpauth.html");
+    let _ = std::fs::remove_file(html_file);
+  }
+}

crates/gpapi/src/process/mod.rs

@@ -1,5 +1,7 @@
 pub(crate) mod command_traits;
 
 pub mod auth_launcher;
+#[cfg(feature = "browser-auth")]
+pub mod browser_authenticator;
 pub mod gui_launcher;
 pub mod service_launcher;

crates/gpapi/src/service/event.rs

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

crates/gpapi/src/utils/window.rs

@@ -27,7 +27,6 @@ pub fn raise_window(win: &Window) -> anyhow::Result<()> {
     }
     let title = win.title()?;
     tokio::spawn(async move {
-      info!("Raising window: {}", title);
       if let Err(err) = wmctrl_raise_window(&title).await {
         warn!("Failed to raise window: {}", err);
       }