anki/aqt/downloader.py
2019-03-04 17:25:19 +10:00

74 lines
2.2 KiB
Python

# Copyright: Ankitects Pty Ltd and contributors
# -*- coding: utf-8 -*-
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
import time, re
from aqt.qt import *
from anki.sync import AnkiRequestsClient
from anki.hooks import addHook, remHook
import aqt
from anki.lang import _
def download(mw, code):
"Download addon from AnkiWeb. Caller must start & stop progress diag."
# create downloading thread
thread = Downloader(code)
done = False
def onRecv():
if done:
return
mw.progress.update(label="%dKB downloaded" % (thread.recvTotal/1024))
thread.recv.connect(onRecv)
thread.start()
while not thread.isFinished():
mw.app.processEvents()
thread.wait(100)
# make sure any posted events don't fire after we return
done = True
if not thread.error:
# success
return thread.data, thread.fname
else:
return "error", thread.error
class Downloader(QThread):
recv = pyqtSignal()
def __init__(self, code):
QThread.__init__(self)
self.code = code
self.error = None
def run(self):
# setup progress handler
self.byteUpdate = time.time()
self.recvTotal = 0
def recvEvent(bytes):
self.recvTotal += bytes
self.recv.emit()
addHook("httpRecv", recvEvent)
client = AnkiRequestsClient()
try:
resp = client.get(
aqt.appShared + "download/%s?v=2.1" % self.code)
if resp.status_code == 200:
data = client.streamContent(resp)
elif resp.status_code in (403,404):
self.error = _("Invalid code, or add-on not available for your version of Anki.")
return
else:
self.error = _("Unexpected response code: %s" % resp.status_code)
return
except Exception as e:
self.error = _("Please check your internet connection.") + "\n\n" + str(e)
return
finally:
remHook("httpRecv", recvEvent)
self.fname = re.match("attachment; filename=(.+)",
resp.headers['content-disposition']).group(1)
self.data = data