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# Copyright (c) 2022 Ultimaker B.V.
# Cura is released under the terms of the LGPLv3 or higher.
from UM.Logger import Logger
from UM.TaskManagement.HttpRequestManager import HttpRequestManager
from UM.TaskManagement.HttpRequestScope import JsonDecoratorScope
from cura.CuraApplication import CuraApplication
from cura.UltimakerCloud.UltimakerCloudScope import UltimakerCloudScope
from ..CloudApiModel import CloudApiModel
class CloudApiClient:
"""Manages Cloud subscriptions
When a package is added to a user's account, the user is 'subscribed' to that package.
Whenever the user logs in on another instance of Cura, these subscriptions can be used to sync the user's plugins
Singleton: use CloudApiClient.getInstance() instead of CloudApiClient()
"""
__instance = None
@classmethod
def getInstance(cls, app: CuraApplication):
if not cls.__instance:
cls.__instance = CloudApiClient(app)
return cls.__instance
def __init__(self, app: CuraApplication) -> None:
if self.__instance is not None:
raise RuntimeError("This is a Singleton. use getInstance()")
self._scope: JsonDecoratorScope = JsonDecoratorScope(UltimakerCloudScope(app))
app.getPackageManager().packageInstalled.connect(self._onPackageInstalled)
def unsubscribe(self, package_id: str) -> None:
url = CloudApiModel.userPackageUrl(package_id)
HttpRequestManager.getInstance().delete(url = url, scope = self._scope)
def _subscribe(self, package_id: str) -> None:
"""You probably don't want to use this directly. All installed packages will be automatically subscribed."""
Logger.debug("Subscribing to {}", package_id)
data = "{\"data\": {\"package_id\": \"%s\", \"sdk_version\": \"%s\"}}" % (package_id, CloudApiModel.sdk_version)
HttpRequestManager.getInstance().put(
url = CloudApiModel.api_url_user_packages,
data = data.encode(),
scope = self._scope
)
def _onPackageInstalled(self, package_id: str):
if CuraApplication.getInstance().getCuraAPI().account.isLoggedIn:
# We might already be subscribed, but checking would take one extra request. Instead, simply subscribe
self._subscribe(package_id)
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