223 lines
7.4 KiB
Python
223 lines
7.4 KiB
Python
# maubot - A plugin-based Matrix bot system.
|
|
# Copyright (C) 2018 Tulir Asokan
|
|
#
|
|
# This program 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.
|
|
#
|
|
# This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
|
|
from typing import Dict, List, Optional
|
|
from sqlalchemy.orm import Session
|
|
from ruamel.yaml.comments import CommentedMap
|
|
from ruamel.yaml import YAML
|
|
from asyncio import AbstractEventLoop
|
|
import logging
|
|
import io
|
|
|
|
from mautrix.util.config import BaseProxyConfig, RecursiveDict
|
|
from mautrix.types import UserID
|
|
|
|
from .db import DBPlugin
|
|
from .config import Config
|
|
from .client import Client
|
|
from .loader import PluginLoader
|
|
from .plugin_base import Plugin
|
|
|
|
log = logging.getLogger("maubot.plugin")
|
|
|
|
yaml = YAML()
|
|
yaml.indent(4)
|
|
|
|
|
|
class PluginInstance:
|
|
db: Session = None
|
|
mb_config: Config = None
|
|
loop: AbstractEventLoop = None
|
|
cache: Dict[str, 'PluginInstance'] = {}
|
|
plugin_directories: List[str] = []
|
|
|
|
log: logging.Logger
|
|
loader: PluginLoader
|
|
client: Client
|
|
plugin: Plugin
|
|
config: BaseProxyConfig
|
|
base_cfg: RecursiveDict[CommentedMap]
|
|
started: bool
|
|
|
|
def __init__(self, db_instance: DBPlugin):
|
|
self.db_instance = db_instance
|
|
self.log = logging.getLogger(f"maubot.plugin.{self.id}")
|
|
self.config = None
|
|
self.started = False
|
|
self.cache[self.id] = self
|
|
|
|
def to_dict(self) -> dict:
|
|
return {
|
|
"id": self.id,
|
|
"type": self.type,
|
|
"enabled": self.enabled,
|
|
"started": self.started,
|
|
"primary_user": self.primary_user,
|
|
}
|
|
|
|
def load(self) -> None:
|
|
try:
|
|
self.loader = PluginLoader.find(self.type)
|
|
except KeyError:
|
|
self.log.error(f"Failed to find loader for type {self.type}")
|
|
self.db_instance.enabled = False
|
|
return
|
|
self.client = Client.get(self.primary_user)
|
|
if not self.client:
|
|
self.log.error(f"Failed to get client for user {self.primary_user}")
|
|
self.db_instance.enabled = False
|
|
return
|
|
self.log.debug("Plugin instance dependencies loaded")
|
|
self.loader.references.add(self)
|
|
self.client.references.add(self)
|
|
|
|
def delete(self) -> None:
|
|
if self.loader is not None:
|
|
self.loader.references.remove(self)
|
|
if self.client is not None:
|
|
self.client.references.remove(self)
|
|
try:
|
|
del self.cache[self.id]
|
|
except KeyError:
|
|
pass
|
|
self.db.delete(self.db_instance)
|
|
# TODO delete plugin db
|
|
|
|
def load_config(self) -> CommentedMap:
|
|
return yaml.load(self.db_instance.config)
|
|
|
|
def save_config(self, data: RecursiveDict[CommentedMap]) -> None:
|
|
buf = io.StringIO()
|
|
yaml.dump(data, buf)
|
|
self.db_instance.config = buf.getvalue()
|
|
|
|
async def start(self) -> None:
|
|
if self.started:
|
|
self.log.warning("Ignoring start() call to already started plugin")
|
|
return
|
|
elif not self.enabled:
|
|
self.log.warning("Plugin disabled, not starting.")
|
|
return
|
|
cls = await self.loader.load()
|
|
config_class = cls.get_config_class()
|
|
if config_class:
|
|
try:
|
|
base = await self.loader.read_file("base-config.yaml")
|
|
self.base_cfg = RecursiveDict(yaml.load(base.decode("utf-8")), CommentedMap)
|
|
except (FileNotFoundError, KeyError):
|
|
self.base_cfg = None
|
|
self.config = config_class(self.load_config, lambda: self.base_cfg, self.save_config)
|
|
self.plugin = cls(self.client.client, self.loop, self.client.http_client, self.id,
|
|
self.log, self.config, self.mb_config["plugin_directories.db"])
|
|
try:
|
|
await self.plugin.start()
|
|
except Exception:
|
|
self.log.exception("Failed to start instance")
|
|
self.db_instance.enabled = False
|
|
return
|
|
self.started = True
|
|
self.log.info(f"Started instance of {self.loader.id} v{self.loader.version} "
|
|
f"with user {self.client.id}")
|
|
|
|
async def stop(self) -> None:
|
|
if not self.started:
|
|
self.log.warning("Ignoring stop() call to non-running plugin")
|
|
return
|
|
self.log.debug("Stopping plugin instance...")
|
|
self.started = False
|
|
try:
|
|
await self.plugin.stop()
|
|
except Exception:
|
|
self.log.exception("Failed to stop instance")
|
|
self.plugin = None
|
|
|
|
@classmethod
|
|
def get(cls, instance_id: str, db_instance: Optional[DBPlugin] = None
|
|
) -> Optional['PluginInstance']:
|
|
try:
|
|
return cls.cache[instance_id]
|
|
except KeyError:
|
|
db_instance = db_instance or DBPlugin.query.get(instance_id)
|
|
if not db_instance:
|
|
return None
|
|
return PluginInstance(db_instance)
|
|
|
|
@classmethod
|
|
def all(cls) -> List['PluginInstance']:
|
|
return [cls.get(plugin.id, plugin) for plugin in DBPlugin.query.all()]
|
|
|
|
def update_id(self, new_id: str) -> None:
|
|
if new_id is not None and new_id != self.id:
|
|
self.db_instance.id = new_id
|
|
|
|
def update_config(self, config: str) -> None:
|
|
if not config or self.db_instance.config == config:
|
|
return
|
|
self.db_instance.config = config
|
|
if self.started and self.plugin is not None:
|
|
self.plugin.on_external_config_update()
|
|
|
|
async def update_primary_user(self, primary_user: UserID) -> bool:
|
|
if not primary_user or primary_user == self.primary_user:
|
|
return True
|
|
client = Client.get(primary_user)
|
|
if not client:
|
|
return False
|
|
await self.stop()
|
|
self.db_instance.primary_user = client.id
|
|
self.client.references.remove(self)
|
|
self.client = client
|
|
await self.start()
|
|
self.log.debug(f"Primary user switched to {self.client.id}")
|
|
return True
|
|
|
|
async def update_started(self, started: bool) -> None:
|
|
if started is not None and started != self.started:
|
|
await (self.start() if started else self.stop())
|
|
|
|
def update_enabled(self, enabled: bool) -> None:
|
|
if enabled is not None and enabled != self.enabled:
|
|
self.db_instance.enabled = enabled
|
|
|
|
# region Properties
|
|
|
|
@property
|
|
def id(self) -> str:
|
|
return self.db_instance.id
|
|
|
|
@id.setter
|
|
def id(self, value: str) -> None:
|
|
self.db_instance.id = value
|
|
|
|
@property
|
|
def type(self) -> str:
|
|
return self.db_instance.type
|
|
|
|
@property
|
|
def enabled(self) -> bool:
|
|
return self.db_instance.enabled
|
|
|
|
@property
|
|
def primary_user(self) -> UserID:
|
|
return self.db_instance.primary_user
|
|
|
|
# endregion
|
|
|
|
|
|
def init(db: Session, config: Config, loop: AbstractEventLoop) -> List[PluginInstance]:
|
|
PluginInstance.db = db
|
|
PluginInstance.mb_config = config
|
|
PluginInstance.loop = loop
|
|
return PluginInstance.all()
|