74 lines
3.4 KiB
Python
74 lines
3.4 KiB
Python
# SPDX-License-Identifier: LGPL-2.1-or-later
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# ***************************************************************************
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# * *
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# * Copyright (c) 2022-2023 FreeCAD Project Association *
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# * *
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# * This file is part of FreeCAD. *
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# * *
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# * FreeCAD is free software: you can redistribute it and/or modify it *
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# * under the terms of the GNU Lesser General Public License as *
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# * published by the Free Software Foundation, either version 2.1 of the *
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# * License, or (at your option) any later version. *
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# * *
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# * FreeCAD is distributed in the hope that it will be useful, but *
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# * WITHOUT ANY WARRANTY; without even the implied warranty of *
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# * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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# * Lesser General Public License for more details. *
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# * *
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# * You should have received a copy of the GNU Lesser General Public *
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# * License along with FreeCAD. If not, see *
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# * <https://www.gnu.org/licenses/>. *
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# * *
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# ***************************************************************************
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""" Misc. worker thread classes for the FreeCAD Addon Manager. """
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from typing import Optional
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import FreeCAD
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from PySide import QtCore
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import addonmanager_utilities as utils
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translate = FreeCAD.Qt.translate
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class ConnectionChecker(QtCore.QThread):
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"""A worker thread for checking the connection to GitHub as a proxy for overall
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network connectivity. It has two signals: success() and failure(str). The failure
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signal contains a translated error message suitable for display to an end user."""
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success = QtCore.Signal()
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failure = QtCore.Signal(str)
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def __init__(self):
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QtCore.QThread.__init__(self)
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def run(self):
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"""Not generally called directly: create a new ConnectionChecker object and
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call start() on it to spawn a child thread."""
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FreeCAD.Console.PrintLog("Checking network connection...\n")
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result = self.check_network_connection()
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if QtCore.QThread.currentThread().isInterruptionRequested():
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FreeCAD.Console.PrintLog("Connection check cancelled\n")
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return
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if not result:
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self.failure.emit(
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translate(
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"AddonsInstaller",
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"Unable to read data from GitHub: check your internet connection and proxy settings and try again.",
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)
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)
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return
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FreeCAD.Console.PrintLog(f"GitHub's zen message response: {result}\n")
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self.success.emit()
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def check_network_connection(self) -> Optional[str]:
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"""The main work of this object: returns the decoded result of the connection request, or
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None if the request failed"""
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url = "https://api.github.com/zen"
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result = utils.blocking_get(url)
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if result:
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return result.decode("utf8")
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return None
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