Fix: don't crash when engine or name is missing in settings.yml

SearXNG crashes if the engine or name fields are missing.
With this commit, the app displays an error in the log and keeps loading.

Close #1951

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/unit/test_engines_init.py b/tests/unit/test_engines_init.py
index c72f5c8e..2844569d 100644
--- a/tests/unit/test_engines_init.py
+++ b/tests/unit/test_engines_init.py
@@ -53,3 +53,25 @@ class TestEnginesInit(SearxTestCase):
         self.assertIn('onions', engines.categories)
         self.assertIn('http://engine1.onion', engines.engines['engine1'].search_url)
         self.assertEqual(engines.engines['engine1'].timeout, 120.0)
+
+    def test_missing_name_field(self):
+        settings['outgoing']['using_tor_proxy'] = False
+        engine_list = [
+            {'engine': 'dummy', 'shortcut': 'e1', 'categories': 'general'},
+        ]
+        with self.assertLogs('searx.engines', level='ERROR') as cm:
+            engines.load_engines(engine_list)
+            self.assertEqual(len(engines.engines), 0)
+            self.assertEqual(cm.output, ['ERROR:searx.engines:An engine does not have a "name" field'])
+
+    def test_missing_engine_field(self):
+        settings['outgoing']['using_tor_proxy'] = False
+        engine_list = [
+            {'name': 'engine2', 'shortcut': 'e2', 'categories': 'onions'},
+        ]
+        with self.assertLogs('searx.engines', level='ERROR') as cm:
+            engines.load_engines(engine_list)
+            self.assertEqual(len(engines.engines), 0)
+            self.assertEqual(
+                cm.output, ['ERROR:searx.engines:The "engine" field is missing for the engine named "engine2"']
+            )