Merge 6ed37fc9eb into 4b57bc3db1

Bumps [flask](https://github.com/pallets/flask) from 3.0.3 to 3.1.0.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](https://github.com/pallets/flask/compare/3.0.3...3.1.0)

---
updated-dependencies:
- dependency-name: flask
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

requirements.txt

@@ -1,7 +1,7 @@
 certifi==2024.8.30
 babel==2.16.0
 flask-babel==4.0.0
-flask==3.0.3
+flask==3.1.0
 jinja2==3.1.4
 lxml==5.3.0
 pygments==2.18.0

searx/preferences.py

@@ -479,7 +479,6 @@ class Preferences:
         self.plugins = PluginsSetting('plugins', plugins=plugins)
         self.tokens = SetSetting('tokens')
         self.client = client or ClientPref()
-        self.unknown_params: Dict[str, str] = {}
 
     def get_as_url_params(self):
         """Return preferences as URL parameters"""
@@ -523,10 +522,6 @@ class Preferences:
                 self.plugins.parse_cookie(input_data.get('disabled_plugins', ''), input_data.get('enabled_plugins', ''))
             elif user_setting_name == 'tokens':
                 self.tokens.parse(user_setting)
-            elif not any(
-                user_setting_name.startswith(x) for x in ['enabled_', 'disabled_', 'engine_', 'category_', 'plugin_']
-            ):
-                self.unknown_params[user_setting_name] = user_setting
 
     def parse_form(self, input_data: Dict[str, str]):
         """Parse formular (``<input>``) data from a ``flask.request.form``"""
@@ -551,8 +546,7 @@ class Preferences:
                 disabled_plugins.append(user_setting_name)
             elif user_setting_name == 'tokens':
                 self.tokens.parse_form(user_setting)
-            else:
+
-                self.unknown_params[user_setting_name] = user_setting
         self.key_value_settings['categories'].parse_form(enabled_categories)
         self.engines.parse_form(disabled_engines)
         self.plugins.parse_form(disabled_plugins)
@@ -563,8 +557,6 @@ class Preferences:
         ret_val = None
         if user_setting_name in self.key_value_settings:
             ret_val = self.key_value_settings[user_setting_name].get_value()
-        if user_setting_name in self.unknown_params:
-            ret_val = self.unknown_params[user_setting_name]
         return ret_val
 
     def save(self, resp: flask.Response):
@@ -577,8 +569,6 @@ class Preferences:
         self.engines.save(resp)
         self.plugins.save(resp)
         self.tokens.save('tokens', resp)
-        for k, v in self.unknown_params.items():
-            resp.set_cookie(k, v, max_age=COOKIE_MAX_AGE)
         return resp
 
     def validate_token(self, engine):

searx/translations/es/LC_MESSAGES/messages.po

@@ -39,7 +39,7 @@ msgstr ""
 "Project-Id-Version: searx\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
 "POT-Creation-Date: 2024-10-05 06:24+0000\n"
-"PO-Revision-Date: 2024-11-03 09:08+0000\n"
+"PO-Revision-Date: 2024-11-14 14:07+0000\n"
 "Last-Translator: return42 <return42@users.noreply.translate.codeberg.org>\n"
 "Language-Team: Spanish <https://translate.codeberg.org/projects/searxng/"
 "searxng/es/>\n"
@@ -1249,7 +1249,7 @@ msgstr "Buscador de favicon"
 
 #: searx/templates/simple/preferences/favicon.html:15
 msgid "Display favicons near search results"
-msgstr ""
+msgstr "Mostrar los favicons al lado de los resultados de búsqueda"
 
 #: searx/templates/simple/preferences/footer.html:2
 msgid ""

searx/translations/it/LC_MESSAGES/messages.po

@@ -28,13 +28,14 @@
 # unoyoa <unoyoa@users.noreply.translate.codeberg.org>, 2024.
 # tiziodcaio <tiziodcaio@users.noreply.translate.codeberg.org>, 2024.
 # Fabio_Perri <Fabio_Perri@users.noreply.translate.codeberg.org>, 2024.
+# lrnz2 <lrnz2@users.noreply.translate.codeberg.org>, 2024.
 msgid ""
 msgstr ""
 "Project-Id-Version: searx\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
 "POT-Creation-Date: 2024-10-05 06:24+0000\n"
-"PO-Revision-Date: 2024-10-08 13:41+0000\n"
+"PO-Revision-Date: 2024-11-14 02:16+0000\n"
-"Last-Translator: return42 <return42@users.noreply.translate.codeberg.org>\n"
+"Last-Translator: lrnz2 <lrnz2@users.noreply.translate.codeberg.org>\n"
 "Language-Team: Italian <https://translate.codeberg.org/projects/searxng/"
 "searxng/it/>\n"
 "Language: it\n"
@@ -42,13 +43,13 @@ msgstr ""
 "Content-Type: text/plain; charset=utf-8\n"
 "Content-Transfer-Encoding: 8bit\n"
 "Plural-Forms: nplurals=2; plural=n != 1;\n"
-"X-Generator: Weblate 5.7.2\n"
+"X-Generator: Weblate 5.8.1\n"
 "Generated-By: Babel 2.16.0\n"
 
 #. CONSTANT_NAMES['NO_SUBGROUPING']
 #: searx/searxng.msg
 msgid "without further subgrouping"
-msgstr "senza altri sottogruppi"
+msgstr "senza altri sottogruppamenti"
 
 #. CONSTANT_NAMES['DEFAULT_CATEGORY']
 #: searx/searxng.msg
@@ -73,7 +74,7 @@ msgstr "musica"
 #. CATEGORY_NAMES['SOCIAL_MEDIA']
 #: searx/searxng.msg
 msgid "social media"
-msgstr "social"
+msgstr "social media"
 
 #. CATEGORY_NAMES['IMAGES']
 #: searx/searxng.msg
@@ -113,7 +114,7 @@ msgstr "mappa"
 #. CATEGORY_NAMES['ONIONS']
 #: searx/searxng.msg
 msgid "onions"
-msgstr "onion"
+msgstr "cipolle"
 
 #. CATEGORY_NAMES['SCIENCE']
 #: searx/searxng.msg
@@ -133,7 +134,7 @@ msgstr "dizionari"
 #. CATEGORY_GROUPS['LYRICS']
 #: searx/searxng.msg
 msgid "lyrics"
-msgstr "testi musicali"
+msgstr "testo musicale"
 
 #. CATEGORY_GROUPS['PACKAGES']
 #: searx/searxng.msg
@@ -148,12 +149,12 @@ msgstr "d&r"
 #. CATEGORY_GROUPS['REPOS']
 #: searx/searxng.msg
 msgid "repos"
-msgstr "ripostigli"
+msgstr "repos"
 
 #. CATEGORY_GROUPS['SOFTWARE_WIKIS']
 #: searx/searxng.msg
 msgid "software wikis"
-msgstr "wiki software"
+msgstr "wiki del software"
 
 #. CATEGORY_GROUPS['WEB']
 #: searx/searxng.msg
@@ -193,7 +194,7 @@ msgstr "Tempo di attività"
 #. BRAND_CUSTOM_LINKS['ABOUT']
 #: searx/searxng.msg searx/templates/simple/base.html:50
 msgid "About"
-msgstr "A proposito"
+msgstr "Al riguardo"
 
 #. WEATHER_TERMS['AVERAGE TEMP.']
 #: searx/engines/wttr.py:32 searx/searxng.msg

searx/translations/nb_NO/LC_MESSAGES/messages.po

@@ -11,13 +11,14 @@
 # omfj <omfj@users.noreply.translate.codeberg.org>, 2024.
 # combwizard <combwizard@users.noreply.translate.codeberg.org>, 2024.
 # laaknor <laaknor@users.noreply.translate.codeberg.org>, 2024.
+# Aadniz <Aadniz@users.noreply.translate.codeberg.org>, 2024.
 msgid ""
 msgstr ""
 "Project-Id-Version: PROJECT VERSION\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
 "POT-Creation-Date: 2024-10-05 06:24+0000\n"
-"PO-Revision-Date: 2024-11-03 09:08+0000\n"
+"PO-Revision-Date: 2024-11-09 12:07+0000\n"
-"Last-Translator: laaknor <laaknor@users.noreply.translate.codeberg.org>\n"
+"Last-Translator: Aadniz <Aadniz@users.noreply.translate.codeberg.org>\n"
 "Language-Team: Norwegian Bokmål <https://translate.codeberg.org/projects/"
 "searxng/searxng/nb_NO/>\n"
 "Language: nb_NO\n"
@@ -192,13 +193,13 @@ msgstr "Skydekke"
 #: searx/engines/duckduckgo_weather.py:45 searx/engines/wttr.py:51
 #: searx/searxng.msg
 msgid "Condition"
-msgstr ""
+msgstr "Betingelse"
 
 #. WEATHER_TERMS['CURRENT CONDITION']
 #: searx/engines/duckduckgo_weather.py:118 searx/engines/wttr.py:104
 #: searx/searxng.msg
 msgid "Current condition"
-msgstr ""
+msgstr "Nåværende betingelse"
 
 #. WEATHER_TERMS['EVENING']
 #: searx/engines/wttr.py:100 searx/searxng.msg
@@ -221,13 +222,13 @@ msgstr "Luftfuktighet"
 #: searx/engines/duckduckgo_weather.py:77 searx/engines/wttr.py:34
 #: searx/searxng.msg
 msgid "Max temp."
-msgstr ""
+msgstr "Maks temp."
 
 #. WEATHER_TERMS['MIN TEMP.']
 #: searx/engines/duckduckgo_weather.py:73 searx/engines/wttr.py:33
 #: searx/searxng.msg
 msgid "Min temp."
-msgstr ""
+msgstr "Min temp."
 
 #. WEATHER_TERMS['MORNING']
 #: searx/engines/wttr.py:100 searx/searxng.msg
@@ -334,17 +335,17 @@ msgstr "opphavsmann"
 #. SOCIAL_MEDIA_TERMS['THREAD OPEN']
 #: searx/engines/discourse.py:149 searx/searxng.msg
 msgid "open"
-msgstr ""
+msgstr "åpen"
 
 #. SOCIAL_MEDIA_TERMS['THREAD CLOSED']
 #: searx/engines/discourse.py:149 searx/searxng.msg
 msgid "closed"
-msgstr ""
+msgstr "lukket"
 
 #. SOCIAL_MEDIA_TERMS['THREAD ANSWERED']
 #: searx/engines/discourse.py:160 searx/searxng.msg
 msgid "answered"
-msgstr ""
+msgstr "svart på"
 
 #: searx/webapp.py:332
 msgid "No item found"
@@ -421,7 +422,7 @@ msgstr "tilgang nektet"
 
 #: searx/webutils.py:60
 msgid "server API error"
-msgstr "Tjener-API-feil"
+msgstr "server API feil"
 
 #: searx/webutils.py:79
 msgid "Suspended"
@@ -453,7 +454,7 @@ msgstr "Regn ut {functions} av parameterne"
 
 #: searx/engines/mozhi.py:57
 msgid "Synonyms"
-msgstr ""
+msgstr "Synonymer"
 
 #: searx/engines/openstreetmap.py:159
 msgid "Get directions"
@@ -528,7 +529,7 @@ msgstr "Filkvalitet"
 
 #: searx/plugins/calculator.py:14
 msgid "Calculate mathematical expressions via the search bar"
-msgstr ""
+msgstr "Kalkuler matematiske uttrykk via søkebaren"
 
 #: searx/plugins/hash_plugin.py:10
 msgid "Converts strings to different hash digests."
@@ -572,7 +573,7 @@ msgstr ""
 
 #: searx/plugins/self_info.py:28
 msgid "Your IP is: "
-msgstr ""
+msgstr "Din IP er "
 
 #: searx/plugins/self_info.py:31
 msgid "Your user-agent is: "
@@ -580,16 +581,16 @@ msgstr ""
 
 #: searx/plugins/tor_check.py:24
 msgid "Tor check plugin"
-msgstr "Tor sjekk pluggin"
+msgstr "Tor sjekking plugin"
 
 #: searx/plugins/tor_check.py:27
 msgid ""
 "This plugin checks if the address of the request is a Tor exit-node, and "
 "informs the user if it is; like check.torproject.org, but from SearXNG."
 msgstr ""
-"Denne plugin sjekker om adressen til forespørselen er en Tor utgangsnode,"
+"Denne plugin-en sjekker om adressen til forespørselen er en Tor utgangsnode, "
-" og informerer brukeren om den er det; som check.torproject.org, men fra "
+"og informerer brukeren om den er det; slik som check.torproject.org gjør, "
-"SearXNG."
+"men fra SearXNG."
 
 #: searx/plugins/tor_check.py:61
 msgid ""
@@ -621,7 +622,7 @@ msgstr "Fjern sporer-argumenter fra returnert nettadresse"
 
 #: searx/plugins/unit_converter.py:29
 msgid "Convert between units"
-msgstr ""
+msgstr "Konverter mellom forskjellige enheter"
 
 #: searx/templates/simple/404.html:4
 msgid "Page not found"
@@ -688,7 +689,7 @@ msgstr "Lengde"
 
 #: searx/templates/simple/macros.html:41
 msgid "Views"
-msgstr ""
+msgstr "Visninger"
 
 #: searx/templates/simple/macros.html:42
 #: searx/templates/simple/result_templates/files.html:34
@@ -946,7 +947,7 @@ msgstr "Meldinger fra søkemotorene"
 
 #: searx/templates/simple/elements/engines_msg.html:7
 msgid "seconds"
-msgstr ""
+msgstr "sekunder"
 
 #: searx/templates/simple/elements/search_url.html:3
 msgid "Search URL"
@@ -1068,7 +1069,7 @@ msgstr "Bytt til en annen instans:"
 
 #: searx/templates/simple/messages/no_results.html:24
 msgid "Search for another query or select another category."
-msgstr ""
+msgstr "Oppgi et annet søkeord eller velg en annen kategori."
 
 #: searx/templates/simple/messages/no_results.html:25
 msgid "Go back to the previous page using the previous page button."
@@ -1194,11 +1195,11 @@ msgstr ""
 
 #: searx/templates/simple/preferences/engines.html:15
 msgid "Enable all"
-msgstr ""
+msgstr "Aktiver alle"
 
 #: searx/templates/simple/preferences/engines.html:16
 msgid "Disable all"
-msgstr ""
+msgstr "Deaktiver alle"
 
 #: searx/templates/simple/preferences/engines.html:25
 msgid "!bang"

searx/translations/vi/LC_MESSAGES/messages.po

@@ -10,13 +10,14 @@
 # return42 <return42@users.noreply.translate.codeberg.org>, 2024.
 # vducong <vducong@users.noreply.translate.codeberg.org>, 2024.
 # tvminh19 <tvminh19@users.noreply.translate.codeberg.org>, 2024.
+# KhietVo <KhietVo@users.noreply.translate.codeberg.org>, 2024.
 msgid ""
 msgstr ""
 "Project-Id-Version: searx\n"
 "Report-Msgid-Bugs-To: EMAIL@ADDRESS\n"
 "POT-Creation-Date: 2024-10-05 06:24+0000\n"
-"PO-Revision-Date: 2024-10-26 21:13+0000\n"
+"PO-Revision-Date: 2024-11-14 14:07+0000\n"
-"Last-Translator: return42 <return42@users.noreply.translate.codeberg.org>\n"
+"Last-Translator: KhietVo <KhietVo@users.noreply.translate.codeberg.org>\n"
 "Language-Team: Vietnamese <https://translate.codeberg.org/projects/searxng/"
 "searxng/vi/>\n"
 "Language: vi\n"
@@ -166,7 +167,7 @@ msgstr "Tối"
 #. STYLE_NAMES['BLACK']
 #: searx/searxng.msg
 msgid "black"
-msgstr ""
+msgstr "màu đen"
 
 #. BRAND_CUSTOM_LINKS['UPTIME']
 #: searx/searxng.msg
@@ -198,7 +199,7 @@ msgstr "Điều kiện"
 #: searx/engines/duckduckgo_weather.py:118 searx/engines/wttr.py:104
 #: searx/searxng.msg
 msgid "Current condition"
-msgstr ""
+msgstr "tình hình hiện tại"
 
 #. WEATHER_TERMS['EVENING']
 #: searx/engines/wttr.py:100 searx/searxng.msg
@@ -209,25 +210,25 @@ msgstr "Buổi chiều"
 #: searx/engines/duckduckgo_weather.py:53 searx/engines/open_meteo.py:81
 #: searx/engines/wttr.py:59 searx/searxng.msg
 msgid "Feels like"
-msgstr ""
+msgstr "Cảm thấy"
 
 #. WEATHER_TERMS['HUMIDITY']
 #: searx/engines/duckduckgo_weather.py:64 searx/engines/open_meteo.py:93
 #: searx/engines/wttr.py:68 searx/searxng.msg
 msgid "Humidity"
-msgstr ""
+msgstr "Độ ẩm"
 
 #. WEATHER_TERMS['MAX TEMP.']
 #: searx/engines/duckduckgo_weather.py:77 searx/engines/wttr.py:34
 #: searx/searxng.msg
 msgid "Max temp."
-msgstr ""
+msgstr "Nhiệt độ tối đa"
 
 #. WEATHER_TERMS['MIN TEMP.']
 #: searx/engines/duckduckgo_weather.py:73 searx/engines/wttr.py:33
 #: searx/searxng.msg
 msgid "Min temp."
-msgstr ""
+msgstr "Nhiệt độ thấp nhất"
 
 #. WEATHER_TERMS['MORNING']
 #: searx/engines/wttr.py:100 searx/searxng.msg
@@ -247,37 +248,37 @@ msgstr "Buổi trưa"
 #. WEATHER_TERMS['PRESSURE']
 #: searx/engines/open_meteo.py:95 searx/searxng.msg
 msgid "Pressure"
-msgstr ""
+msgstr "Áp suất"
 
 #. WEATHER_TERMS['SUNRISE']
 #: searx/engines/duckduckgo_weather.py:81 searx/engines/wttr.py:36
 #: searx/searxng.msg
 msgid "Sunrise"
-msgstr ""
+msgstr "Mặt trời mọc"
 
 #. WEATHER_TERMS['SUNSET']
 #: searx/engines/duckduckgo_weather.py:82 searx/engines/wttr.py:37
 #: searx/searxng.msg
 msgid "Sunset"
-msgstr ""
+msgstr "mặt trời lặn"
 
 #. WEATHER_TERMS['TEMPERATURE']
 #: searx/engines/duckduckgo_weather.py:48 searx/engines/open_meteo.py:76
 #: searx/engines/wttr.py:55 searx/searxng.msg
 msgid "Temperature"
-msgstr ""
+msgstr "Nhiệt độ"
 
 #. WEATHER_TERMS['UV INDEX']
 #: searx/engines/duckduckgo_weather.py:80 searx/engines/wttr.py:35
 #: searx/searxng.msg
 msgid "UV index"
-msgstr ""
+msgstr "Chỉ số UV"
 
 #. WEATHER_TERMS['VISIBILITY']
 #: searx/engines/duckduckgo_weather.py:62 searx/engines/wttr.py:66
 #: searx/searxng.msg
 msgid "Visibility"
-msgstr ""
+msgstr "Tầm nhìn"
 
 #. WEATHER_TERMS['WIND']
 #: searx/engines/duckduckgo_weather.py:58 searx/engines/open_meteo.py:86
@@ -288,12 +289,12 @@ msgstr "Gió"
 #. SOCIAL_MEDIA_TERMS['SUBSCRIBERS']
 #: searx/engines/lemmy.py:85 searx/searxng.msg
 msgid "subscribers"
-msgstr ""
+msgstr "người đăng ký"
 
 #. SOCIAL_MEDIA_TERMS['POSTS']
 #: searx/engines/lemmy.py:86 searx/searxng.msg
 msgid "posts"
-msgstr ""
+msgstr "những bài đăng"
 
 #. SOCIAL_MEDIA_TERMS['ACTIVE USERS']
 #: searx/engines/lemmy.py:87 searx/searxng.msg
@@ -309,42 +310,42 @@ msgstr ""
 #. SOCIAL_MEDIA_TERMS['USER']
 #: searx/engines/lemmy.py:129 searx/engines/lemmy.py:164 searx/searxng.msg
 msgid "user"
-msgstr ""
+msgstr "người dùng"
 
 #. SOCIAL_MEDIA_TERMS['COMMUNITY']
 #: searx/engines/lemmy.py:131 searx/engines/lemmy.py:165 searx/searxng.msg
 msgid "community"
-msgstr ""
+msgstr "cộng đồng"
 
 #. SOCIAL_MEDIA_TERMS['POINTS']
 #: searx/engines/hackernews.py:78 searx/searxng.msg
 msgid "points"
-msgstr ""
+msgstr "điểm"
 
 #. SOCIAL_MEDIA_TERMS['TITLE']
 #: searx/searxng.msg
 msgid "title"
-msgstr ""
+msgstr "tiêu đề"
 
 #. SOCIAL_MEDIA_TERMS['AUTHOR']
 #: searx/engines/hackernews.py:81 searx/searxng.msg
 msgid "author"
-msgstr ""
+msgstr "tác giả"
 
 #. SOCIAL_MEDIA_TERMS['THREAD OPEN']
 #: searx/engines/discourse.py:149 searx/searxng.msg
 msgid "open"
-msgstr ""
+msgstr "mở"
 
 #. SOCIAL_MEDIA_TERMS['THREAD CLOSED']
 #: searx/engines/discourse.py:149 searx/searxng.msg
 msgid "closed"
-msgstr ""
+msgstr "đóng"
 
 #. SOCIAL_MEDIA_TERMS['THREAD ANSWERED']
 #: searx/engines/discourse.py:160 searx/searxng.msg
 msgid "answered"
-msgstr ""
+msgstr "đã trả lời"
 
 #: searx/webapp.py:332
 msgid "No item found"
@@ -529,7 +530,7 @@ msgstr "Chất lượng tệp"
 
 #: searx/plugins/calculator.py:14
 msgid "Calculate mathematical expressions via the search bar"
-msgstr ""
+msgstr "Tính toán bằng thanh tìm kiếm"
 
 #: searx/plugins/hash_plugin.py:10
 msgid "Converts strings to different hash digests."
@@ -540,12 +541,14 @@ msgid "hash digest"
 msgstr "hash băm"
 
 #: searx/plugins/hostnames.py:103
+#, fuzzy
 msgid "Hostnames plugin"
-msgstr ""
+msgstr "Mấy chủ bổ trợ"
 
 #: searx/plugins/hostnames.py:104
 msgid "Rewrite hostnames, remove results or prioritize them based on the hostname"
 msgstr ""
+"Viết lại máy chủ, xoá các kểt quả tìm kiếm hoặc sắp xếp dựa trên máy chủ"
 
 #: searx/plugins/oa_doi_rewrite.py:12
 msgid "Open Access DOI rewrite"
@@ -571,7 +574,7 @@ msgstr "Hiện IP của bạn khi gõ \"ip\" và hiện user agent khi gõ \"use
 
 #: searx/plugins/self_info.py:28
 msgid "Your IP is: "
-msgstr ""
+msgstr "Địa chỉ IP của bạn: "
 
 #: searx/plugins/self_info.py:31
 msgid "Your user-agent is: "

tests/unit/test_preferences.py

@@ -1,10 +1,13 @@
 # SPDX-License-Identifier: AGPL-3.0-or-later
 # pylint: disable=missing-module-docstring, invalid-name
 
+import flask
+from mock import Mock
 from tests import SearxTestCase
 from searx import favicons
 from searx.locales import locales_initialize
 from searx.preferences import (
+    Setting,
     EnumStringSetting,
     MapSetting,
     SearchLanguageSetting,
@@ -13,6 +16,7 @@ from searx.preferences import (
     ValidationException,
 )
 from searx.plugins import Plugin
+from searx.preferences import Preferences
 
 locales_initialize()
 favicons.init()
@@ -125,10 +129,10 @@ class TestSettings(SearxTestCase):  # pylint: disable=missing-class-docstring
 
 
 class TestPreferences(SearxTestCase):  # pylint: disable=missing-class-docstring
-    def test_encode(self):
+    def setUp(self):
-        from searx.preferences import Preferences  # pylint: disable=import-outside-toplevel
+        self.preferences = Preferences(['simple'], ['general'], {}, [])
 
-        pref = Preferences(['simple'], ['general'], {}, [])
+    def test_encode(self):
         url_params = (
             'eJx1Vk1z4zYM_TXxRZNMd7eddg8-pe21nWnvGoiEJEQkofDDtvzrC1qSRdnbQxQTBA'
             'Hw8eGRCiJ27AnDsUOHHszBgOsSdHjU-Pr7HwfDCkweHCBFVmxHgxGPB7LiU4-eL9Px'
@@ -155,8 +159,48 @@ class TestPreferences(SearxTestCase):  # pylint: disable=missing-class-docstring
             'd-DZy7PtaVp2WgvPBpzCXUL_J1OGex48RVmOXzBU8_N3kqekkefRDzxNK2_Klp9mBJ'
             'wsUnXyRqq1mScHuYalUY7_AZTCR4s=&q='
         )
-        pref.parse_encoded_data(url_params)
+        self.preferences.parse_encoded_data(url_params)
         self.assertEqual(
-            vars(pref.key_value_settings['categories']),
+            vars(self.preferences.key_value_settings['categories']),
             {'value': ['general'], 'locked': False, 'choices': ['general', 'none']},
         )
+
+    def test_save_key_value_setting(self):
+        setting_key = 'foo'
+        setting_value = 'bar'
+
+        cookie_callback = {}
+
+        def set_cookie_callback(name, value, max_age):  # pylint: disable=unused-argument
+            cookie_callback[name] = value
+
+        response_mock = Mock(flask.Response)
+        response_mock.set_cookie = set_cookie_callback
+        self.preferences.key_value_settings = {
+            setting_key: Setting(
+                setting_value,
+                locked=False,
+            ),
+        }
+        self.preferences.save(response_mock)
+        self.assertIn(setting_key, cookie_callback)
+        self.assertEqual(cookie_callback[setting_key], setting_value)
+
+    def test_false_key_value_setting(self):
+        setting_key = 'foo'
+
+        cookie_callback = {}
+
+        def set_cookie_callback(name, value, max_age):  # pylint: disable=unused-argument
+            cookie_callback[name] = value
+
+        response_mock = Mock(flask.Response)
+        response_mock.set_cookie = set_cookie_callback
+        self.preferences.key_value_settings = {
+            setting_key: Setting(
+                '',
+                locked=True,
+            ),
+        }
+        self.preferences.save(response_mock)
+        self.assertNotIn(setting_key, cookie_callback)