forked from platypush/platypush
Use Redis instead of an in-process map to store the entity/plugin registry
This is particularly useful when we want to access the registry from another process, like the web server or an external script.
This commit is contained in:
parent
7b1a63e287
commit
26ffc0b0e1
GPG key ID:
D90FBA7F76362774
3 changed files with 127 additions and 79 deletions
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@ -1,15 +1,16 @@
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import warnings
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from typing import Collection, Optional
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from ._base import Entity
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from ._base import Entity, get_entities_registry
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from ._engine import EntitiesEngine
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from ._registry import manages, register_entity_plugin, get_plugin_registry
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from ._registry import manages, register_entity_plugin, get_plugin_entity_registry
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_engine: Optional[EntitiesEngine] = None
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def init_entities_engine() -> EntitiesEngine:
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from ._base import init_entities_db
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global _engine
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init_entities_db()
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_engine = EntitiesEngine()
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@ -24,13 +25,14 @@ def publish_entities(entities: Collection[Entity]):
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_engine.post(*entities)
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__all__ = (
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'Entity',
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'EntitiesEngine',
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'init_entities_engine',
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'publish_entities',
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'register_entity_plugin',
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'get_plugin_registry',
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'get_plugin_entity_registry',
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'get_entities_registry',
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'manages',
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)
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@ -1,24 +1,38 @@
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import json
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from datetime import datetime
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from typing import Optional, Mapping, Dict, Collection, Type
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from typing import Optional, Dict, Collection, Type
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from platypush.plugins import Plugin
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from platypush.utils import get_plugin_name_by_class
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from platypush.utils import get_plugin_name_by_class, get_redis
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from ._base import Entity
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_entity_plugin_registry: Mapping[Type[Entity], Dict[str, Plugin]] = {}
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_entity_registry_varname = '_platypush/plugin_entity_registry'
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def register_entity_plugin(entity_type: Type[Entity], plugin: Plugin):
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plugins = _entity_plugin_registry.get(entity_type, {})
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plugin_name = get_plugin_name_by_class(plugin.__class__)
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assert plugin_name
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plugins[plugin_name] = plugin
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_entity_plugin_registry[entity_type] = plugins
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plugin_name = get_plugin_name_by_class(plugin.__class__) or ''
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entity_type_name = entity_type.__name__.lower()
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redis = get_redis()
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registry = get_plugin_entity_registry()
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registry_by_plugin = set(registry['by_plugin'].get(plugin_name, []))
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registry_by_entity_type = set(registry['by_entity_type'].get(entity_type_name, []))
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registry_by_plugin.add(entity_type_name)
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registry_by_entity_type.add(plugin_name)
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registry['by_plugin'][plugin_name] = list(registry_by_plugin)
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registry['by_entity_type'][entity_type_name] = list(registry_by_entity_type)
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redis.mset({_entity_registry_varname: json.dumps(registry)})
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def get_plugin_registry():
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return _entity_plugin_registry.copy()
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def get_plugin_entity_registry() -> Dict[str, Dict[str, Collection[str]]]:
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redis = get_redis()
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registry = redis.mget([_entity_registry_varname])[0]
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try:
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return json.loads((registry or b'').decode())
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except (TypeError, ValueError):
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return {'by_plugin': {}, 'by_entity_type': {}}
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class EntityManagerMixin:
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@ -37,6 +51,7 @@ class EntityManagerMixin:
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def publish_entities(self, entities: Optional[Collection[Entity]]):
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from . import publish_entities
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entities = self.transform_entities(entities)
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publish_entities(entities)
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@ -59,4 +74,3 @@ def manages(*entities: Type[Entity]):
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return plugin
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return wrapper
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@ -1,4 +1,5 @@
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import ast
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import contextlib
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import datetime
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import hashlib
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import importlib
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@ -20,8 +21,8 @@ logger = logging.getLogger('utils')
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def get_module_and_method_from_action(action):
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""" Input : action=music.mpd.play
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Output : ('music.mpd', 'play') """
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"""Input : action=music.mpd.play
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Output : ('music.mpd', 'play')"""
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tokens = action.split('.')
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module_name = str.join('.', tokens[:-1])
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@ -30,7 +31,7 @@ def get_module_and_method_from_action(action):
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def get_message_class_by_type(msgtype):
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""" Gets the class of a message type given as string """
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"""Gets the class of a message type given as string"""
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try:
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module = importlib.import_module('platypush.message.' + msgtype)
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@ -43,8 +44,7 @@ def get_message_class_by_type(msgtype):
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try:
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msgclass = getattr(module, cls_name)
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except AttributeError as e:
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logger.warning('No such class in {}: {}'.format(
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module.__name__, cls_name))
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logger.warning('No such class in {}: {}'.format(module.__name__, cls_name))
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raise RuntimeError(e)
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return msgclass
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@ -52,13 +52,13 @@ def get_message_class_by_type(msgtype):
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# noinspection PyShadowingBuiltins
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def get_event_class_by_type(type):
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""" Gets an event class by type name """
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"""Gets an event class by type name"""
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event_module = importlib.import_module('.'.join(type.split('.')[:-1]))
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return getattr(event_module, type.split('.')[-1])
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def get_plugin_module_by_name(plugin_name):
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""" Gets the module of a plugin by name (e.g. "music.mpd" or "media.vlc") """
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"""Gets the module of a plugin by name (e.g. "music.mpd" or "media.vlc")"""
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module_name = 'platypush.plugins.' + plugin_name
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try:
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@ -69,22 +69,26 @@ def get_plugin_module_by_name(plugin_name):
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def get_plugin_class_by_name(plugin_name):
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""" Gets the class of a plugin by name (e.g. "music.mpd" or "media.vlc") """
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"""Gets the class of a plugin by name (e.g. "music.mpd" or "media.vlc")"""
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module = get_plugin_module_by_name(plugin_name)
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if not module:
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return
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class_name = getattr(module, ''.join([_.capitalize() for _ in plugin_name.split('.')]) + 'Plugin')
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class_name = getattr(
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module, ''.join([_.capitalize() for _ in plugin_name.split('.')]) + 'Plugin'
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)
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try:
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return getattr(module, ''.join([_.capitalize() for _ in plugin_name.split('.')]) + 'Plugin')
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return getattr(
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module, ''.join([_.capitalize() for _ in plugin_name.split('.')]) + 'Plugin'
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)
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except Exception as e:
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logger.error('Cannot import class {}: {}'.format(class_name, str(e)))
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return None
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def get_plugin_name_by_class(plugin) -> Optional[str]:
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"""Gets the common name of a plugin (e.g. "music.mpd" or "media.vlc") given its class. """
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"""Gets the common name of a plugin (e.g. "music.mpd" or "media.vlc") given its class."""
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from platypush.plugins import Plugin
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@ -93,7 +97,8 @@ def get_plugin_name_by_class(plugin) -> Optional[str]:
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class_name = plugin.__name__
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class_tokens = [
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token.lower() for token in re.sub(r'([A-Z])', r' \1', class_name).split(' ')
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token.lower()
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for token in re.sub(r'([A-Z])', r' \1', class_name).split(' ')
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if token.strip() and token != 'Plugin'
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]
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@ -101,7 +106,7 @@ def get_plugin_name_by_class(plugin) -> Optional[str]:
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def get_backend_name_by_class(backend) -> Optional[str]:
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"""Gets the common name of a backend (e.g. "http" or "mqtt") given its class. """
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"""Gets the common name of a backend (e.g. "http" or "mqtt") given its class."""
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from platypush.backend import Backend
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@ -110,7 +115,8 @@ def get_backend_name_by_class(backend) -> Optional[str]:
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class_name = backend.__name__
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class_tokens = [
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token.lower() for token in re.sub(r'([A-Z])', r' \1', class_name).split(' ')
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token.lower()
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for token in re.sub(r'([A-Z])', r' \1', class_name).split(' ')
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if token.strip() and token != 'Backend'
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]
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@ -135,12 +141,12 @@ def set_timeout(seconds, on_timeout):
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def clear_timeout():
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""" Clear any previously set timeout """
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"""Clear any previously set timeout"""
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signal.alarm(0)
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def get_hash(s):
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""" Get the SHA256 hash hex digest of a string input """
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"""Get the SHA256 hash hex digest of a string input"""
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return hashlib.sha256(s.encode('utf-8')).hexdigest()
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@ -177,11 +183,8 @@ def get_decorators(cls, climb_class_hierarchy=False):
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node_iter.visit_FunctionDef = visit_FunctionDef
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for target in targets:
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try:
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with contextlib.suppress(TypeError):
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node_iter.visit(ast.parse(inspect.getsource(target)))
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except TypeError:
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# Ignore built-in classes
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pass
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return decorators
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@ -195,45 +198,57 @@ def get_redis_queue_name_by_message(msg):
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return 'platypush/responses/{}'.format(msg.id) if msg.id else None
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def _get_ssl_context(context_type=None, ssl_cert=None, ssl_key=None,
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ssl_cafile=None, ssl_capath=None):
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def _get_ssl_context(
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context_type=None, ssl_cert=None, ssl_key=None, ssl_cafile=None, ssl_capath=None
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):
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if not context_type:
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ssl_context = ssl.create_default_context(cafile=ssl_cafile,
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capath=ssl_capath)
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ssl_context = ssl.create_default_context(cafile=ssl_cafile, capath=ssl_capath)
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else:
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ssl_context = ssl.SSLContext(ssl.PROTOCOL_TLS_SERVER)
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if ssl_cafile or ssl_capath:
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ssl_context.load_verify_locations(
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cafile=ssl_cafile, capath=ssl_capath)
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ssl_context.load_verify_locations(cafile=ssl_cafile, capath=ssl_capath)
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ssl_context.load_cert_chain(
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certfile=os.path.abspath(os.path.expanduser(ssl_cert)),
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keyfile=os.path.abspath(os.path.expanduser(ssl_key)) if ssl_key else None
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keyfile=os.path.abspath(os.path.expanduser(ssl_key)) if ssl_key else None,
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)
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return ssl_context
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def get_ssl_context(ssl_cert=None, ssl_key=None, ssl_cafile=None,
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ssl_capath=None):
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return _get_ssl_context(context_type=None,
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ssl_cert=ssl_cert, ssl_key=ssl_key,
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ssl_cafile=ssl_cafile, ssl_capath=ssl_capath)
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def get_ssl_context(ssl_cert=None, ssl_key=None, ssl_cafile=None, ssl_capath=None):
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return _get_ssl_context(
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context_type=None,
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ssl_cert=ssl_cert,
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ssl_key=ssl_key,
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ssl_cafile=ssl_cafile,
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ssl_capath=ssl_capath,
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)
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def get_ssl_server_context(ssl_cert=None, ssl_key=None, ssl_cafile=None,
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ssl_capath=None):
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return _get_ssl_context(context_type=ssl.PROTOCOL_TLS_SERVER,
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ssl_cert=ssl_cert, ssl_key=ssl_key,
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ssl_cafile=ssl_cafile, ssl_capath=ssl_capath)
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def get_ssl_server_context(
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ssl_cert=None, ssl_key=None, ssl_cafile=None, ssl_capath=None
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):
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return _get_ssl_context(
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context_type=ssl.PROTOCOL_TLS_SERVER,
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ssl_cert=ssl_cert,
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ssl_key=ssl_key,
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ssl_cafile=ssl_cafile,
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ssl_capath=ssl_capath,
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)
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def get_ssl_client_context(ssl_cert=None, ssl_key=None, ssl_cafile=None,
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ssl_capath=None):
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return _get_ssl_context(context_type=ssl.PROTOCOL_TLS_CLIENT,
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ssl_cert=ssl_cert, ssl_key=ssl_key,
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ssl_cafile=ssl_cafile, ssl_capath=ssl_capath)
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def get_ssl_client_context(
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ssl_cert=None, ssl_key=None, ssl_cafile=None, ssl_capath=None
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):
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return _get_ssl_context(
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context_type=ssl.PROTOCOL_TLS_CLIENT,
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ssl_cert=ssl_cert,
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ssl_key=ssl_key,
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ssl_cafile=ssl_cafile,
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ssl_capath=ssl_capath,
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)
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def set_thread_name(name):
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@ -241,6 +256,7 @@ def set_thread_name(name):
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try:
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import prctl
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# noinspection PyUnresolvedReferences
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prctl.set_name(name)
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except ImportError:
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@ -251,9 +267,9 @@ def find_bins_in_path(bin_name):
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return [
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os.path.join(p, bin_name)
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for p in os.environ.get('PATH', '').split(':')
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if os.path.isfile(os.path.join(p, bin_name)) and (
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os.name == 'nt' or os.access(os.path.join(p, bin_name), os.X_OK)
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)]
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if os.path.isfile(os.path.join(p, bin_name))
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and (os.name == 'nt' or os.access(os.path.join(p, bin_name), os.X_OK))
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]
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def find_files_by_ext(directory, *exts):
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@ -271,7 +287,7 @@ def find_files_by_ext(directory, *exts):
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max_len = len(max(exts, key=len))
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result = []
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for root, dirs, files in os.walk(directory):
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for _, __, files in os.walk(directory):
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for i in range(min_len, max_len + 1):
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result += [f for f in files if f[-i:] in exts]
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|
|
@ -302,8 +318,9 @@ def get_ip_or_hostname():
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def get_mime_type(resource):
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import magic
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if resource.startswith('file://'):
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resource = resource[len('file://'):]
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resource = resource[len('file://') :]
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# noinspection HttpUrlsUsage
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if resource.startswith('http://') or resource.startswith('https://'):
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|
|
@ -315,7 +332,9 @@ def get_mime_type(resource):
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elif hasattr(magic, 'from_file'):
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mime = magic.from_file(resource, mime=True)
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else:
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raise RuntimeError('The installed magic version provides neither detect_from_filename nor from_file')
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raise RuntimeError(
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'The installed magic version provides neither detect_from_filename nor from_file'
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)
|
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|
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if mime:
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return mime.mime_type if hasattr(mime, 'mime_type') else mime
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|
|
@ -332,6 +351,7 @@ def grouper(n, iterable, fillvalue=None):
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grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx
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"""
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from itertools import zip_longest
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args = [iter(iterable)] * n
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|
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if fillvalue:
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|
|
@ -355,6 +375,7 @@ def is_functional_cron(obj) -> bool:
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|
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def run(action, *args, **kwargs):
|
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from platypush.context import get_plugin
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|
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(module_name, method_name) = get_module_and_method_from_action(action)
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plugin = get_plugin(module_name)
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method = getattr(plugin, method_name)
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|
|
@ -366,7 +387,9 @@ def run(action, *args, **kwargs):
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return response.output
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|
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|
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def generate_rsa_key_pair(key_file: Optional[str] = None, size: int = 2048) -> Tuple[str, str]:
|
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def generate_rsa_key_pair(
|
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key_file: Optional[str] = None, size: int = 2048
|
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) -> Tuple[str, str]:
|
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"""
|
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Generate an RSA key pair.
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|
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|
|
@ -390,27 +413,30 @@ def generate_rsa_key_pair(key_file: Optional[str] = None, size: int = 2048) -> T
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|
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public_exp = 65537
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private_key = rsa.generate_private_key(
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public_exponent=public_exp,
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key_size=size,
|
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backend=default_backend()
|
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public_exponent=public_exp, key_size=size, backend=default_backend()
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)
|
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|
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logger.info('Generating RSA {} key pair'.format(size))
|
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private_key_str = private_key.private_bytes(
|
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encoding=serialization.Encoding.PEM,
|
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format=serialization.PrivateFormat.TraditionalOpenSSL,
|
||||
encryption_algorithm=serialization.NoEncryption()
|
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encryption_algorithm=serialization.NoEncryption(),
|
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).decode()
|
||||
|
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public_key_str = private_key.public_key().public_bytes(
|
||||
encoding=serialization.Encoding.PEM,
|
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format=serialization.PublicFormat.PKCS1,
|
||||
).decode()
|
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public_key_str = (
|
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private_key.public_key()
|
||||
.public_bytes(
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encoding=serialization.Encoding.PEM,
|
||||
format=serialization.PublicFormat.PKCS1,
|
||||
)
|
||||
.decode()
|
||||
)
|
||||
|
||||
if key_file:
|
||||
logger.info('Saving private key to {}'.format(key_file))
|
||||
with open(os.path.expanduser(key_file), 'w') as f1, \
|
||||
open(os.path.expanduser(key_file) + '.pub', 'w') as f2:
|
||||
with open(os.path.expanduser(key_file), 'w') as f1, open(
|
||||
os.path.expanduser(key_file) + '.pub', 'w'
|
||||
) as f2:
|
||||
f1.write(private_key_str)
|
||||
f2.write(public_key_str)
|
||||
os.chmod(key_file, 0o600)
|
||||
|
|
@ -426,8 +452,7 @@ def get_or_generate_jwt_rsa_key_pair():
|
|||
pub_key_file = priv_key_file + '.pub'
|
||||
|
||||
if os.path.isfile(priv_key_file) and os.path.isfile(pub_key_file):
|
||||
with open(pub_key_file, 'r') as f1, \
|
||||
open(priv_key_file, 'r') as f2:
|
||||
with open(pub_key_file, 'r') as f1, open(priv_key_file, 'r') as f2:
|
||||
return f1.read(), f2.read()
|
||||
|
||||
pathlib.Path(key_dir).mkdir(parents=True, exist_ok=True, mode=0o755)
|
||||
|
|
@ -439,7 +464,7 @@ def get_enabled_plugins() -> dict:
|
|||
from platypush.context import get_plugin
|
||||
|
||||
plugins = {}
|
||||
for name, config in Config.get_plugins().items():
|
||||
for name in Config.get_plugins():
|
||||
try:
|
||||
plugin = get_plugin(name)
|
||||
if plugin:
|
||||
|
|
@ -453,11 +478,18 @@ def get_enabled_plugins() -> dict:
|
|||
|
||||
def get_redis() -> Redis:
|
||||
from platypush.config import Config
|
||||
return Redis(**(Config.get('backend.redis') or {}).get('redis_args', {}))
|
||||
|
||||
return Redis(
|
||||
**(
|
||||
(Config.get('backend.redis') or {}).get('redis_args', {})
|
||||
or Config.get('redis')
|
||||
or {}
|
||||
)
|
||||
)
|
||||
|
||||
|
||||
def to_datetime(t: Union[str, int, float, datetime.datetime]) -> datetime.datetime:
|
||||
if isinstance(t, int) or isinstance(t, float):
|
||||
if isinstance(t, (int, float)):
|
||||
return datetime.datetime.fromtimestamp(t, tz=tz.tzutc())
|
||||
if isinstance(t, str):
|
||||
return parser.parse(t)
|
||||
|
|
|
|||
Loading…
Reference in a new issue