1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
# vim: ft=python fileencoding=utf-8 sts=4 sw=4 et:
# Copyright 2018-2021 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 <https://www.gnu.org/licenses/>.
"""APIs related to downloading files."""
import io
from qutebrowser.qt.core import QObject, pyqtSignal, pyqtSlot, QUrl
from qutebrowser.browser import downloads, qtnetworkdownloads
from qutebrowser.utils import objreg
UnsupportedAttribute = downloads.UnsupportedAttribute
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')
# cache=False is set as a WORKAROUND for MS Defender thinking we're a trojan
# downloader when caching the hostblock list...
return download_manager.get(url, target=target, auto_remove=True, cache=False)
|
