searxng/searx/plugins/__init__.py

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'''
searx is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
searx is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with searx. If not, see < http://www.gnu.org/licenses/ >.
(C) 2015 by Adam Tauber, <asciimoo@gmail.com>
'''
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from sys import exit, version_info
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from searx import logger
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if version_info[0] == 3:
unicode = str
logger = logger.getChild('plugins')
from searx.plugins import (oa_doi_rewrite,
https_rewrite,
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infinite_scroll,
open_results_on_new_tab,
self_info,
search_on_category_select,
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tracker_url_remover,
vim_hotkeys)
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required_attrs = (('name', (str, unicode)),
('description', (str, unicode)),
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('default_on', bool))
optional_attrs = (('js_dependencies', tuple),
('css_dependencies', tuple))
class Plugin():
default_on = False
name = 'Default plugin'
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description = 'Default plugin description'
class PluginStore():
def __init__(self):
self.plugins = []
def __iter__(self):
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for plugin in self.plugins:
yield plugin
def register(self, *plugins):
for plugin in plugins:
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for plugin_attr, plugin_attr_type in required_attrs:
if not hasattr(plugin, plugin_attr) or not isinstance(getattr(plugin, plugin_attr), plugin_attr_type):
logger.critical('missing attribute "{0}", cannot load plugin: {1}'.format(plugin_attr, plugin))
exit(3)
for plugin_attr, plugin_attr_type in optional_attrs:
if not hasattr(plugin, plugin_attr) or not isinstance(getattr(plugin, plugin_attr), plugin_attr_type):
setattr(plugin, plugin_attr, plugin_attr_type())
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plugin.id = plugin.name.replace(' ', '_')
self.plugins.append(plugin)
def call(self, ordered_plugin_list, plugin_type, request, *args, **kwargs):
ret = True
for plugin in ordered_plugin_list:
if hasattr(plugin, plugin_type):
ret = getattr(plugin, plugin_type)(request, *args, **kwargs)
if not ret:
break
return ret
plugins = PluginStore()
plugins.register(oa_doi_rewrite)
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plugins.register(https_rewrite)
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plugins.register(infinite_scroll)
plugins.register(open_results_on_new_tab)
plugins.register(self_info)
plugins.register(search_on_category_select)
plugins.register(tracker_url_remover)
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plugins.register(vim_hotkeys)