searxng/searx/plugins/__init__.py

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from searx.plugins import self_ip
from searx import logger
from sys import exit
logger = logger.getChild('plugins')
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required_attrs = (('name', str),
('description', str),
('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, plugin_type, request, *args, **kwargs):
ret = True
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for plugin in request.user_plugins:
if hasattr(plugin, plugin_type):
ret = getattr(plugin, plugin_type)(request, *args, **kwargs)
if not ret:
break
return ret
plugins = PluginStore()
plugins.register(self_ip)