searxng/tests/unit/test_plugins.py
Markus Heiser 50f92779bd [refactor] migrate plugins from "module" to class SXNGPlugin
This patch brings two major changes:

- ``Result.filter_urls(..)`` to pass a filter function for URL fields
- The ``enabled_plugins:`` section in SearXNG's settings do no longer exists.

To understand plugin development compile documentation:

    $ make docs.clean docs.live

and read http://0.0.0.0:8000/dev/plugins/development.html

There is no longer a distinction between built-in and external plugin, all
plugins are registered via the settings in the ``plugins:`` section.

In SearXNG, plugins can be registered via a fully qualified class name.  A
configuration (`PluginCfg`) can be transferred to the plugin, e.g. to activate
it by default / *opt-in* or *opt-out* from user's point of view.

built-in plugins
================

The built-in plugins are all located in the namespace `searx.plugins`.

.. code:: yaml

    plugins:

      searx.plugins.calculator.SXNGPlugin:
        active: true

      searx.plugins.hash_plugin.SXNGPlugin:
        active: true

      searx.plugins.self_info.SXNGPlugin:
        active: true

      searx.plugins.tracker_url_remover.SXNGPlugin:
        active: true

      searx.plugins.unit_converter.SXNGPlugin:
        active: true

      searx.plugins.ahmia_filter.SXNGPlugin:
        active: true

      searx.plugins.hostnames.SXNGPlugin:
        active: true

      searx.plugins.oa_doi_rewrite.SXNGPlugin:
        active: false

      searx.plugins.tor_check.SXNGPlugin:
        active: false

external plugins
================

SearXNG supports *external plugins* / there is no need to install one, SearXNG
runs out of the box.

- Only show green hosted results: https://github.com/return42/tgwf-searx-plugins/

To get a developer installation in a SearXNG developer environment:

.. code:: sh

   $ git clone git@github.com:return42/tgwf-searx-plugins.git
   $ ./manage pyenv.cmd python -m \
         pip install -e tgwf-searx-plugins

To register the plugin in SearXNG add ``only_show_green_results.SXNGPlugin`` to
the ``plugins:``:

.. code:: yaml

    plugins:
      # ...
      only_show_green_results.SXNGPlugin:
        active: false

Result.filter_urls(..)
======================

The ``Result.filter_urls(..)`` can be used to filter and/or modify URL fields.
In the following example, the filter function ``my_url_filter``:

.. code:: python

   def my_url_filter(result, field_name, url_src) -> bool | str:
       if "google" in url_src:
           return False              # remove URL field from result
       if "facebook" in url_src:
           new_url = url_src.replace("facebook", "fb-dummy")
           return new_url            # return modified URL
       return True                   # leave URL in field unchanged

is applied to all URL fields in the :py:obj:`Plugin.on_result` hook:

.. code:: python

   class MyUrlFilter(Plugin):
       ...
       def on_result(self, request, search, result) -> bool:
           result.filter_urls(my_url_filter)
           return True

Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
2025-03-29 10:16:43 +01:00

108 lines
2.9 KiB
Python

# SPDX-License-Identifier: AGPL-3.0-or-later
# pylint: disable=missing-module-docstring,disable=missing-class-docstring,invalid-name
import babel
from mock import Mock
import searx
import searx.plugins
import searx.preferences
import searx.results
from searx.result_types import Result
from searx.extended_types import sxng_request
from tests import SearxTestCase
plg_store = searx.plugins.PluginStorage()
plg_store.load_settings(searx.get_setting("plugins"))
def get_search_mock(query, **kwargs):
lang = kwargs.get("lang", "en-US")
kwargs["pageno"] = kwargs.get("pageno", 1)
kwargs["locale"] = babel.Locale.parse(lang, sep="-")
user_plugins = kwargs.pop("user_plugins", [x.id for x in plg_store])
return Mock(
search_query=Mock(query=query, **kwargs),
user_plugins=user_plugins,
result_container=searx.results.ResultContainer(),
)
def do_pre_search(query, storage, **kwargs) -> bool:
search = get_search_mock(query, **kwargs)
ret = storage.pre_search(sxng_request, search)
return ret
def do_post_search(query, storage, **kwargs) -> Mock:
search = get_search_mock(query, **kwargs)
storage.post_search(sxng_request, search)
return search
class PluginMock(searx.plugins.Plugin):
def __init__(self, _id: str, name: str, active: bool):
plg_cfg = searx.plugins.PluginCfg(active=active)
self.id = _id
self._name = name
super().__init__(plg_cfg)
# pylint: disable= unused-argument
def pre_search(self, request, search) -> bool:
return True
def post_search(self, request, search) -> None:
return None
def on_result(self, request, search, result) -> bool:
return False
def info(self):
return searx.plugins.PluginInfo(
id=self.id,
name=self._name,
description=f"Dummy plugin: {self.id}",
preference_section="general",
)
class PluginStorage(SearxTestCase):
def setUp(self):
super().setUp()
engines = {}
self.storage = searx.plugins.PluginStorage()
self.storage.register(PluginMock("plg001", "first plugin", True))
self.storage.register(PluginMock("plg002", "second plugin", True))
self.storage.init(self.app)
self.pref = searx.preferences.Preferences(["simple"], ["general"], engines, self.storage)
self.pref.parse_dict({"locale": "en"})
def test_init(self):
self.assertEqual(2, len(self.storage))
def test_hooks(self):
with self.app.test_request_context():
sxng_request.preferences = self.pref
query = ""
ret = do_pre_search(query, self.storage, pageno=1)
self.assertTrue(ret is True)
ret = self.storage.on_result(
sxng_request,
get_search_mock("lorem ipsum", user_plugins=["plg001", "plg002"]),
Result(),
)
self.assertFalse(ret)