__init__.py

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# SPDX-License-Identifier: AGPL-3.0-or-later
""".. sidebar:: Further reading ..
 
   - :ref:`plugins admin`
   - :ref:`SearXNG settings <settings plugins>`
 
Plugins can extend or replace functionality of various components of SearXNG.
 
Entry points (hooks) define when a plugin runs.  Right now only three hooks are
implemented.  So feel free to implement a hook if it fits the behaviour of your
plugin / a plugin doesn't need to implement all the hooks.
 
- pre search: :py:obj:`Plugin.pre_search`
- post search: :py:obj:`Plugin.post_search`
- on each result item: :py:obj:`Plugin.on_result`
 
Below you will find some examples, for more coding examples have a look at the
built-in plugins :origin:`searx/plugins/` or `Only show green hosted results`_.
 
.. _Only show green hosted results:
   https://github.com/return42/tgwf-searx-plugins/
 
 
Add Answer example
==================
 
Here is an example of a very simple plugin that adds a "Hello World" into the
answer area:
 
.. code:: python
 
   from flask_babel import gettext as _
   from searx.plugins import Plugin
   from searx.result_types import Answer
 
   class MyPlugin(Plugin):
 
       id = "hello world"
 
       def __init__(self, plg_cfg):
           super().__init__(plg_cfg)
           self.info = PluginInfo(id=self.id, name=_("Hello"), description=_("demo plugin"))
 
       def post_search(self, request, search):
           return [ Answer(answer="Hello World") ]
 
.. _filter urls example:
 
Filter URLs example
===================
 
.. sidebar:: Further reading ..
 
   - :py:obj:`Result.filter_urls(..) <searx.result_types._base.Result.filter_urls>`
 
The :py:obj:`Result.filter_urls(..) <searx.result_types._base.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
 
 
Implementation
==============
 
.. autoclass:: Plugin
   :members:
 
.. autoclass:: PluginInfo
   :members:
 
.. autoclass:: PluginStorage
   :members:
 
.. autoclass:: PluginCfg
   :members:
"""
 
from __future__ import annotations
 
__all__ = ["PluginInfo", "Plugin", "PluginStorage", "PluginCfg"]
 
 
import searx
from ._core import PluginInfo, Plugin, PluginStorage, PluginCfg
 
STORAGE: PluginStorage = PluginStorage()
 
 
def initialize(app):
    STORAGE.load_settings(searx.get_setting("plugins"))
    STORAGE.init(app)