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.. _dev plugin:
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=======
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Plugins
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=======
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.. sidebar:: Further reading ..
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- :ref:`plugins generic`
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Plugins can extend or replace functionality of various components of searx.
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Example plugin
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==============
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.. code:: python
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name = 'Example plugin'
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description = 'This plugin extends the suggestions with the word "example"'
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default_on = False # disabled by default
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js_dependencies = tuple() # optional, list of static js files
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css_dependencies = tuple() # optional, list of static css files
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# attach callback to the post search hook
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# request: flask request object
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# ctx: the whole local context of the post search hook
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def post_search(request, search):
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search.result_container.suggestions.add('example')
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return True
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External plugins
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================
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External plugins are standard python modules implementing all the requirements of the standard plugins.
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Plugins can be enabled by adding them to :ref:`settings.yml`'s ``plugins`` section.
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Example external plugin can be found `here <https://github.com/asciimoo/searx_external_plugin_example>`_.
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Register your plugin
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====================
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To enable your plugin register your plugin in
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searx > plugin > __init__.py.
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And at the bottom of the file add your plugin like.
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``plugins.register(name_of_python_file)``
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Plugin entry points
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===================
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Entry points (hooks) define when a plugin runs. Right now only three hooks are
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implemented. So feel free to implement a hook if it fits the behaviour of your
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plugin. A plugin doesn't need to implement all the hooks.
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.. py:function:: pre_search(request, search) -> bool
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Runs BEFORE the search request.
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`search.result_container` can be changed.
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Return a boolean:
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* True to continue the search
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* False to stop the search
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:param flask.request request:
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:param searx.search.SearchWithPlugins search:
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:return: False to stop the search
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:rtype: bool
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.. py:function:: post_search(request, search) -> None
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Runs AFTER the search request.
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:param flask.request request: Flask request.
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:param searx.search.SearchWithPlugins search: Context.
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.. py:function:: on_result(request, search, result) -> bool
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Runs for each result of each engine.
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`result` can be changed.
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If `result["url"]` is defined, then `result["parsed_url"] = urlparse(result['url'])`
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.. warning::
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`result["url"]` can be changed, but `result["parsed_url"]` must be updated too.
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Return a boolean:
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* True to keep the result
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* False to remove the result
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:param flask.request request:
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:param searx.search.SearchWithPlugins search:
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:param typing.Dict result: Result, see - :ref:`engine results`
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:return: True to keep the result
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:rtype: bool
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