From eecf81f0a530b742b3254bf1815cf99c176451ea Mon Sep 17 00:00:00 2001
From: Kyle Spearrin <kyle.spearrin@gmail.com>
Date: Thu, 30 May 2019 22:50:58 -0400
Subject: [PATCH] verify fingerprint when enabling

---
 .../Settings/SettingsPage/SettingsPageViewModel.cs | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/App/Pages/Settings/SettingsPage/SettingsPageViewModel.cs b/src/App/Pages/Settings/SettingsPage/SettingsPageViewModel.cs
index e65dc8b93..c79283a16 100644
--- a/src/App/Pages/Settings/SettingsPage/SettingsPageViewModel.cs
+++ b/src/App/Pages/Settings/SettingsPage/SettingsPageViewModel.cs
@@ -243,7 +243,19 @@ namespace Bit.App.Pages
 
         public async Task UpdateFingerprintAsync()
         {
-            _fingerprint = !_fingerprint;
+            var current = _fingerprint;
+            if(_fingerprint)
+            {
+                _fingerprint = false;
+            }
+            else if(await _platformUtilsService.SupportsFingerprintAsync())
+            {
+                _fingerprint = await _platformUtilsService.AuthenticateFingerprintAsync();
+            }
+            if(_fingerprint == current)
+            {
+                return;
+            }
             if(_fingerprint)
             {
                 await _storageService.SaveAsync(Constants.FingerprintUnlockKey, true);