Feat: Windows-Hello Testing (DevTools Only)

src-tauri/src/commands/biometric.rs

@@ -0,0 +1,93 @@
+#[cfg(target_os = "windows")]
+mod windows_hello {
+    use windows::{
+        core::HSTRING,
+        Security::Credentials::UI::{UserConsentVerificationResult, UserConsentVerifier},
+        Win32::UI::WindowsAndMessaging::{
+            BringWindowToTop, FindWindowW, IsIconic, SetForegroundWindow, ShowWindow, SW_RESTORE,
+        },
+    };
+
+    fn to_wide(s: &str) -> Vec<u16> {
+        use std::os::windows::ffi::OsStrExt;
+        std::ffi::OsStr::new(s)
+            .encode_wide()
+            .chain(std::iter::once(0))
+            .collect()
+    }
+
+    fn try_focus_hello_dialog() -> bool {
+        let cls = to_wide("Credential Dialog Xaml Host");
+        unsafe {
+            let Ok(hwnd) = FindWindowW(
+                windows::core::PCWSTR(cls.as_ptr()),
+                windows::core::PCWSTR::null(),
+            ) else {
+                return false;
+            };
+            if IsIconic(hwnd).as_bool() {
+                let _ = ShowWindow(hwnd, SW_RESTORE);
+            }
+            let _ = BringWindowToTop(hwnd);
+            let _ = SetForegroundWindow(hwnd);
+            true
+        }
+    }
+
+    fn nudge_focus(retries: u32, delay_ms: u64) {
+        std::thread::spawn(move || {
+            std::thread::sleep(std::time::Duration::from_millis(delay_ms));
+            for _ in 0..retries {
+                if try_focus_hello_dialog() {
+                    break;
+                }
+                std::thread::sleep(std::time::Duration::from_millis(delay_ms));
+            }
+        });
+    }
+
+    pub fn authenticate(reason: &str) -> Result<(), String> {
+        nudge_focus(5, 250);
+        let result = UserConsentVerifier::RequestVerificationAsync(&HSTRING::from(reason))
+            .and_then(|op| {
+                nudge_focus(5, 250);
+                op.get()
+            })
+            .map_err(|e| format!("internalError:{e:?}"))?;
+
+        match result {
+            UserConsentVerificationResult::Verified => Ok(()),
+            UserConsentVerificationResult::Canceled => Err("userCancel".into()),
+            UserConsentVerificationResult::RetriesExhausted => Err("biometryLockout".into()),
+            UserConsentVerificationResult::DeviceBusy => Err("systemCancel".into()),
+            UserConsentVerificationResult::DeviceNotPresent => Err("biometryNotAvailable".into()),
+            UserConsentVerificationResult::DisabledByPolicy => Err("biometryNotAvailable".into()),
+            UserConsentVerificationResult::NotConfiguredForUser => Err("biometryNotEnrolled".into()),
+            _ => Err("authenticationFailed".into()),
+        }
+    }
+
+    pub fn is_available() -> bool {
+        use windows::Security::Credentials::UI::UserConsentVerifierAvailability;
+        UserConsentVerifier::CheckAvailabilityAsync()
+            .and_then(|op| op.get())
+            .map(|a| a == UserConsentVerifierAvailability::Available)
+            .unwrap_or(false)
+    }
+}
+
+#[tauri::command]
+pub fn windows_hello_authenticate(_reason: String) -> Result<(), String> {
+    #[cfg(target_os = "windows")]
+    return windows_hello::authenticate(&reason);
+    #[cfg(not(target_os = "windows"))]
+    Err("notSupported".into())
+}
+
+#[tauri::command]
+pub fn windows_hello_available() -> bool {
+    #[cfg(target_os = "windows")]
+    return windows_hello::is_available();
+    #[cfg(not(target_os = "windows"))]
+    false
+}

src-tauri/src/commands/mod.rs

@@ -1,5 +1,6 @@
 pub mod backup;
+pub mod biometric;
 pub mod server;
 pub mod storage;
 pub mod system;
-pub mod updater;
+pub mod updater;