ssh: show fingerprint when adding already existing key.

- help to track why we failed to add a specific key

rhodecode/apps/admin/tests/test_admin_users_ssh_keys.py

@@ -67,6 +67,7 b' class TestAdminUsersSshKeysView(TestCont'
                    'I4fG8+hBHzpeFxUGvSGNtXPUbwaAY8j/oHYrTpMgkj6pUEFsiKfC5zPq' \
                    'PFR5HyKTCHW0nFUJnZsbyFT5hMiF/hZkJc9A0ZbdSvJwCRQ/g3bmdL ' \
                    '[e-mail]'
+    FINGERPRINT = 'MD5:01:4f:ad:29:22:6e:01:37:c9:d2:52:26:52:b0:2d:93'
 
     def test_ssh_keys_default_user(self):
         self.log_user()
@@ -111,9 +112,11 b' class TestAdminUsersSshKeysView(TestCont'
             route_path('edit_user_ssh_keys_add', user_id=user_id),
             {'description': desc, 'key_data': key_data,
              'csrf_token': self.csrf_token})
+
+        err = 'Such key with fingerprint `{}` already exists, ' \
+              'please use a different one'.format(self.FINGERPRINT)
         assert_session_flash(response, 'An error occurred during ssh key '
-                                       'saving: Such key already exists, '
-                                       'please use a different one')
+                                       'saving: {}'.format(err))
 
     def test_add_ssh_key(self, user_util):
         self.log_user()

rhodecode/apps/admin/views/users.py

@@ -817,6 +817,7 b' class UsersView(UserAppView):'
         key_data = self.request.POST.get('key_data')
         description = self.request.POST.get('description')
 
+        fingerprint = 'unknown'
         try:
             if not key_data:
                 raise ValueError('Please add a valid public key')
@@ -841,8 +842,9 b' class UsersView(UserAppView):'
 
         except IntegrityError:
             log.exception("Exception during ssh key saving")
-            h.flash(_('An error occurred during ssh key saving: {}').format(
-                'Such key already exists, please use a different one'),
+            err = 'Such key with fingerprint `{}` already exists, ' \
+                  'please use a different one'.format(fingerprint)
+            h.flash(_('An error occurred during ssh key saving: {}').format(err),
                     category='error')
         except Exception as e:
             log.exception("Exception during ssh key saving")

rhodecode/apps/my_account/tests/test_my_account_ssh_keys.py

@@ -66,6 +66,7 b' class TestMyAccountSshKeysView(TestContr'
                    'I4fG8+hBHzpeFxUGvSGNtXPUbwaAY8j/oHYrTpMgkj6pUEFsiKfC5zPq' \
                    'PFR5HyKTCHW0nFUJnZsbyFT5hMiF/hZkJc9A0ZbdSvJwCRQ/g3bmdL ' \
                    '[e-mail]'
+    FINGERPRINT = 'MD5:01:4f:ad:29:22:6e:01:37:c9:d2:52:26:52:b0:2d:93'
 
     def test_add_ssh_key_error(self, user_util):
         user = user_util.create_user(password='qweqwe')
@@ -100,9 +101,11 b' class TestMyAccountSshKeysView(TestContr'
             route_path('my_account_ssh_keys_add'),
             {'description': desc, 'key_data': key_data,
              'csrf_token': self.csrf_token})
+
+        err = 'Such key with fingerprint `{}` already exists, ' \
+              'please use a different one'.format(self.FINGERPRINT)
         assert_session_flash(response, 'An error occurred during ssh key '
-                                       'saving: Such key already exists, '
-                                       'please use a different one')
+                                       'saving: {}'.format(err))
 
     def test_add_ssh_key(self, user_util):
         user = user_util.create_user(password='qweqwe')

rhodecode/apps/my_account/views/my_account_ssh_keys.py

@@ -89,7 +89,7 b' class MyAccountSshKeysView(BaseAppView, '
         user_data = c.user.get_api_data()
         key_data = self.request.POST.get('key_data')
         description = self.request.POST.get('description')
-
+        fingerprint = 'unknown'
         try:
             if not key_data:
                 raise ValueError('Please add a valid public key')
@@ -114,8 +114,9 b' class MyAccountSshKeysView(BaseAppView, '
 
         except IntegrityError:
             log.exception("Exception during ssh key saving")
-            h.flash(_('An error occurred during ssh key saving: {}').format(
-                'Such key already exists, please use a different one'),
+            err = 'Such key with fingerprint `{}` already exists, ' \
+                  'please use a different one'.format(fingerprint)
+            h.flash(_('An error occurred during ssh key saving: {}').format(err),
                     category='error')
         except Exception as e:
             log.exception("Exception during ssh key saving")