Coverage for qutebrowser/misc/autoupdate.py : 100%

# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et: 

# Copyright 2014-2018 Florian Bruhin (The Compiler) <mail@qutebrowser.org> 

# 

# This file is part of qutebrowser. 

# 

# qutebrowser is free software: you can redistribute it and/or modify 

# it under the terms of the GNU General Public License as published by 

# the Free Software Foundation, either version 3 of the License, or 

# (at your option) any later version. 

# 

# qutebrowser 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 General Public License for more details. 

# 

# You should have received a copy of the GNU General Public License 

# along with qutebrowser. If not, see <http://www.gnu.org/licenses/>. 

"""Classes related to auto-updating and getting the latest version.""" 

import json 

from PyQt5.QtCore import pyqtSignal, pyqtSlot, QObject, QUrl 

from qutebrowser.misc import httpclient 

class PyPIVersionClient(QObject): 

"""A client for the PyPI API using HTTPClient. 

It gets the latest version of qutebrowser from PyPI. 

Attributes: 

_client: The HTTPClient used. 

Class attributes: 

API_URL: The base API URL. 

Signals: 

success: Emitted when getting the version info succeeded. 

arg: The newest version. 

error: Emitted when getting the version info failed. 

arg: The error message, as string. 

""" 

API_URL = 'https://pypi.python.org/pypi/{}/json' 

success = pyqtSignal(str) 

error = pyqtSignal(str) 

def __init__(self, parent=None, client=None): 

super().__init__(parent) 

if client is None: 

self._client = httpclient.HTTPClient(self) 

else: 

self._client = client 

self._client.error.connect(self.error) 

self._client.success.connect(self.on_client_success) 

def get_version(self, package='qutebrowser'): 

"""Get the newest version of a given package. 

Emits success/error when done. 

Args: 

package: The name of the package to check. 

""" 

url = QUrl(self.API_URL.format(package)) 

self._client.get(url) 

@pyqtSlot(str) 

def on_client_success(self, data): 

"""Process the data and finish when the client finished. 

Args: 

data: A string with the received data. 

""" 

try: 

json_data = json.loads(data) 

except ValueError as e: 

self.error.emit("Invalid JSON received in reply: {}!".format(e)) 

return 

try: 

self.success.emit(json_data['info']['version']) 

except KeyError as e: 

self.error.emit("Malformed data received in reply " 

"({!r} not found)!".format(e)) 

return