mirror of
https://github.com/bottlesdevs/Bottles.git
synced 2026-10-26 03:29:39 +08:00
111 lines
3.7 KiB
Python
111 lines
3.7 KiB
Python
# connection.py
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#
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# Copyright 2022 brombinmirko <send@mirko.pm>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, in version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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from datetime import datetime
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from gettext import gettext as _
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import pycurl
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from bottles.backend.logger import Logger
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from bottles.backend.models.result import Result
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from bottles.backend.state import SignalManager, Signals, Notification
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logging = Logger()
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class ConnectionUtils:
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"""
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This class is used to check the connection, pinging the official
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Bottle's website. If the connection is offline, the user will be
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notified and False will be returned, otherwise True.
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"""
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_status: bool | None = None
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last_check = None
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def __init__(self, force_offline=False, **kwargs):
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super().__init__(**kwargs)
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self.force_offline = force_offline
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self.do_check_connection = True
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self.aborted_connections = 0
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SignalManager.connect(Signals.ForceStopNetworking, self.stop_check)
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@property
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def status(self) -> bool | None:
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return self._status
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@status.setter
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def status(self, value: bool):
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if value is None:
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logging.error("Cannot set network status to None")
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return
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self._status = value
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SignalManager.send(Signals.NetworkStatusChanged, Result(status=self.status))
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def __curl_progress(self, _download_t, _download_d, _upload_t, _upload_d):
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if self.do_check_connection:
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return pycurl.E_OK
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else:
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self.aborted_connections += 1
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return pycurl.E_ABORTED_BY_CALLBACK
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def stop_check(self, res: Result):
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if res.status:
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self.do_check_connection = False
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def check_connection(self, show_notification=False) -> bool | None:
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"""check network status, send result through signal NetworkReady and return"""
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if self.force_offline or "FORCE_OFFLINE" in os.environ:
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logging.info("Forcing offline mode")
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self.status = False
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return False
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try:
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c = pycurl.Curl()
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c.setopt(c.URL, "https://ping.usebottles.com")
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c.setopt(c.FOLLOWLOCATION, True)
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c.setopt(c.NOBODY, True)
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c.setopt(c.NOPROGRESS, False)
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c.setopt(c.XFERINFOFUNCTION, self.__curl_progress)
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c.perform()
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if c.getinfo(pycurl.HTTP_CODE) != 200:
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raise Exception("Connection status: offline …")
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self.last_check = datetime.now()
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self.status = True
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except Exception:
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logging.warning("Connection status: offline …")
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if show_notification:
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SignalManager.send(
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Signals.GNotification,
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Result(
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True,
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Notification(
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title="Bottles",
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text=_("You are offline, unable to download."),
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image="network-wireless-disabled-symbolic",
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),
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),
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)
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self.last_check = datetime.now()
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self.status = False
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finally:
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self.do_check_connection = True
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return self.status
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