moment/harmonyqml/backend/client_manager.py
miruka 1d0cce402e Proper display name retrieval implementation
For any name not found in rooms data, rely on new
nio.HttpClient.get_displayname() function to get and cache it,
e.g. for our own name if no room is joined and past events from users
who left the room.

@futurize now returns PyQtFuture objects, wrapper for the
concurrent.futures.Future objects that can be used from QML,
to ensure name retrieval does not block the GUI.
2019-04-19 02:26:29 -04:00

155 lines
4.4 KiB
Python

# Copyright 2018 miruka
# This file is part of harmonyqt, licensed under GPLv3.
import hashlib
import json
import os
import platform
import threading
from typing import Dict, Optional
from atomicfile import AtomicFile
from PyQt5.QtCore import (
QObject, QStandardPaths, pyqtProperty, pyqtSignal, pyqtSlot
)
from harmonyqml import __about__
from .backend import Backend
from .client import Client
AccountConfig = Dict[str, Dict[str, str]]
_CONFIG_LOCK = threading.Lock()
# _CRYPT_DB_LOCK = threading.Lock()
class ClientManager(QObject):
clientAdded = pyqtSignal(Client)
clientDeleted = pyqtSignal(str)
def __init__(self, backend: Backend) -> None:
super().__init__(backend)
self.backend = backend
self._clients: Dict[str, Client] = {}
def __repr__(self) -> str:
return f"{type(self).__name__}(clients={self.clients!r})"
@pyqtProperty("QVariantMap", constant=True)
def clients(self):
return self._clients
@pyqtSlot()
def configLoad(self) -> None:
for user_id, info in self.configAccounts().items():
client = Client(self, info["hostname"], user_id)
client.resumeSession(user_id, info["token"], info["device_id"])\
.add_done_callback(lambda _, c=client: self._on_connected(c))
@pyqtSlot(str, str, str)
@pyqtSlot(str, str, str)
def new(self, hostname: str, username: str, password: str,
device_id: str = "") -> None:
client = Client(self, hostname, username, device_id)
client.login(password, self.defaultDeviceName)\
.add_done_callback(lambda _: self._on_connected(client))
def _on_connected(self, client: Client) -> None:
self.clients[client.userID] = client
self.clientAdded.emit(client)
client.startSyncing()
@pyqtSlot(str)
def delete(self, user_id: str) -> None:
client = self.clients.pop(user_id, None)
if client:
self.clientDeleted.emit(user_id)
client.logout()
@pyqtProperty(str, constant=True)
def defaultDeviceName(self) -> str: # pylint: disable=no-self-use
os_ = f" on {platform.system()}".rstrip()
os_ = f"{os_} {platform.release()}".rstrip() if os_ != " on" else ""
return f"{__about__.__pretty_name__}{os}"
# Standard file paths
@staticmethod
def _get_standard_path(kind: QStandardPaths.StandardLocation,
file: str,
initial_content: Optional[str] = None) -> str:
relative_path = file.replace("/", os.sep)
path = QStandardPaths.locate(kind, relative_path)
if path:
return path
base_dir = QStandardPaths.writableLocation(kind)
path = f"{base_dir}{os.sep}{relative_path}"
os.makedirs(os.path.split(path)[0], exist_ok=True)
if initial_content is not None:
with AtomicFile(path, "w") as new:
new.write(initial_content)
return path
def getAccountConfigPath(self) -> str:
return self._get_standard_path(
QStandardPaths.AppConfigLocation, "accounts.json", "[]"
)
def getCryptDBPath(self, user_id: str) -> str:
safe_filename = hashlib.md5(user_id.encode("utf-8")).hexdigest()
return self._get_standard_path(
QStandardPaths.AppDataLocation, f"encryption/{safe_filename}.db"
)
# Config file operations
def configAccounts(self) -> AccountConfig:
with open(self.getAccountConfigPath(), "r") as file:
return json.loads(file.read().strip()) or {}
@pyqtSlot(Client)
def configAdd(self, client: Client) -> None:
self._write_config({
**self.configAccounts(),
**{client.userID: {
"hostname": client.nio.host,
"token": client.nio.access_token,
"device_id": client.nio.device_id,
}}
})
@pyqtSlot(str)
def configDelete(self, user_id: str) -> None:
self._write_config({
uid: info
for uid, info in self.configAccounts().items() if uid != user_id
})
def _write_config(self, accounts: AccountConfig) -> None:
js = json.dumps(accounts, indent=4, ensure_ascii=False, sort_keys=True)
with _CONFIG_LOCK:
with AtomicFile(self.getAccountConfigPath(), "w") as new:
new.write(js)