76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
|
|
|
|
# Copyright 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/>.
|
|
|
|
|
|
"""APIs related to downloading files."""
|
|
|
|
|
|
import io
|
|
|
|
from PyQt5.QtCore import QObject, pyqtSignal, pyqtSlot, QUrl
|
|
|
|
from qutebrowser.browser import downloads, qtnetworkdownloads
|
|
from qutebrowser.utils import objreg
|
|
|
|
|
|
class TempDownload(QObject):
|
|
|
|
"""A download of some data into a file object."""
|
|
|
|
finished = pyqtSignal()
|
|
|
|
def __init__(self, item: qtnetworkdownloads.DownloadItem) -> None:
|
|
super().__init__()
|
|
self._item = item
|
|
self._item.finished.connect(self._on_download_finished)
|
|
self.successful = False
|
|
self.fileobj = item.fileobj
|
|
|
|
@pyqtSlot()
|
|
def _on_download_finished(self) -> None:
|
|
self.successful = self._item.successful
|
|
self.finished.emit()
|
|
|
|
|
|
def download_temp(url: QUrl) -> TempDownload:
|
|
"""Download the given URL into a file object.
|
|
|
|
The download is not saved to disk.
|
|
|
|
Returns a ``TempDownload`` object, which triggers a ``finished`` signal
|
|
when the download has finished::
|
|
|
|
dl = downloads.download_temp(QUrl("https://www.example.com/"))
|
|
dl.finished.connect(functools.partial(on_download_finished, dl))
|
|
|
|
After the download has finished, its ``successful`` attribute can be
|
|
checked to make sure it finished successfully. If so, its contents can be
|
|
read by accessing the ``fileobj`` attribute::
|
|
|
|
def on_download_finished(download: downloads.TempDownload) -> None:
|
|
if download.successful:
|
|
print(download.fileobj.read())
|
|
download.fileobj.close()
|
|
"""
|
|
fobj = io.BytesIO()
|
|
fobj.name = 'temporary: ' + url.host()
|
|
target = downloads.FileObjDownloadTarget(fobj)
|
|
download_manager = objreg.get('qtnetwork-download-manager')
|
|
return download_manager.get(url, target=target, auto_remove=True)
|