anki/aqt/sync.py

497 lines
17 KiB
Python

# Copyright: Damien Elmes <anki@ichi2.net>
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
from __future__ import division
from aqt.qt import *
import socket, time, traceback, gc
import aqt
from anki import Collection
from anki.sync import Syncer, RemoteServer, FullSyncer, MediaSyncer, \
RemoteMediaServer
from anki.hooks import addHook, remHook
from aqt.utils import tooltip, askUserDialog, showWarning, showText, showInfo
# Sync manager
######################################################################
class SyncManager(QObject):
def __init__(self, mw, pm):
QObject.__init__(self, mw)
self.mw = mw
self.pm = pm
def sync(self):
if not self.pm.profile['syncKey']:
auth = self._getUserPass()
if not auth:
return
self._sync(auth)
else:
self._sync()
def _sync(self, auth=None):
# to avoid gui widgets being garbage collected in the worker thread,
# run gc in advance
self._didFullUp = False
self._didError = False
gc.collect()
# create the thread, setup signals and start running
t = self.thread = SyncThread(
self.pm.collectionPath(), self.pm.profile['syncKey'],
auth=auth, media=self.pm.profile['syncMedia'])
self.connect(t, SIGNAL("event"), self.onEvent)
self.label = _("Connecting...")
self.mw.progress.start(immediate=True, label=self.label)
self.sentBytes = self.recvBytes = 0
self._updateLabel()
self.thread.start()
while not self.thread.isFinished():
self.mw.app.processEvents()
self.thread.wait(100)
self.mw.progress.finish()
def delayedInfo():
if self._didFullUp and not self._didError:
showInfo(_("""\
Your collection was successfully uploaded to AnkiWeb.
If you use any other devices, please sync them now, and choose \
to download the collection you have just uploaded from this computer. \
After doing so, future reviews and added cards will be merged \
automatically."""))
self.mw.progress.timer(1000, delayedInfo, False)
def _updateLabel(self):
self.mw.progress.update(label="%s\n%s" % (
self.label,
_("%(a)dkB up, %(b)dkB down") % dict(
a=self.sentBytes // 1024,
b=self.recvBytes // 1024)))
def onEvent(self, evt, *args):
pu = self.mw.progress.update
if evt == "badAuth":
tooltip(
_("AnkiWeb ID or password was incorrect; please try again."),
parent=self.mw)
# blank the key so we prompt user again
self.pm.profile['syncKey'] = None
self.pm.save()
elif evt == "corrupt":
pass
elif evt == "newKey":
self.pm.profile['syncKey'] = args[0]
self.pm.save()
elif evt == "offline":
tooltip(_("Syncing failed; internet offline."))
elif evt == "upbad":
self._didFullUp = False
self._checkFailed()
elif evt == "sync":
m = None; t = args[0]
if t == "login":
m = _("Syncing...")
elif t == "upload":
self._didFullUp = True
m = _("Uploading to AnkiWeb...")
elif t == "download":
m = _("Downloading from AnkiWeb...")
elif t == "sanity":
m = _("Checking...")
elif t == "findMedia":
m = _("Syncing Media...")
elif t == "upgradeRequired":
showText(_("""\
Please visit AnkiWeb, upgrade your deck, then try again."""))
if m:
self.label = m
self._updateLabel()
elif evt == "error":
self._didError = True
showText(_("Syncing failed:\n%s")%
self._rewriteError(args[0]))
elif evt == "clockOff":
self._clockOff()
elif evt == "checkFailed":
self._checkFailed()
elif evt == "mediaSanity":
showWarning(_("""\
A problem occurred while syncing media. Please sync again and Anki will \
correct the issue."""))
elif evt == "noChanges":
pass
elif evt == "fullSync":
self._confirmFullSync()
elif evt == "send":
# posted events not guaranteed to arrive in order
self.sentBytes = max(self.sentBytes, args[0])
self._updateLabel()
elif evt == "recv":
self.recvBytes = max(self.recvBytes, args[0])
self._updateLabel()
def _rewriteError(self, err):
if "Errno 61" in err:
return _("""\
Couldn't connect to AnkiWeb. Please check your network connection \
and try again.""")
elif "timed out" in err or "10060" in err:
return _("""\
The connection to AnkiWeb timed out. Please check your network \
connection and try again.""")
elif "500" in err:
return _("""\
AnkiWeb encountered an error. Please try again in a few minutes, and if \
the problem persists, please file a bug report.""")
elif "501" in err:
return _("""\
Please upgrade to the latest version of Anki.""")
# 502 is technically due to the server restarting, but we reuse the
# error message
elif "502" in err:
return _("AnkiWeb is under maintenance. Please try again in a few minutes.")
elif "503" in err:
return _("""\
AnkiWeb is too busy at the moment. Please try again in a few minutes.""")
elif "504" in err:
return _("504 gateway timeout error received. Please try temporarily disabling your antivirus.")
elif "409" in err:
return _("A previous sync failed; please try again in a few minutes.")
elif "10061" in err or "10013" in err:
return _(
"Antivirus or firewall software is preventing Anki from connecting to the internet.")
elif "Unable to find the server" in err:
return _(
"Server not found. Either your connection is down, or antivirus/firewall "
"software is blocking Anki from connecting to the internet.")
elif "407" in err:
return _("Proxy authentication required.")
return err
def _getUserPass(self):
d = QDialog(self.mw)
d.setWindowTitle("Anki")
d.setWindowModality(Qt.WindowModal)
vbox = QVBoxLayout()
l = QLabel(_("""\
<h1>Account Required</h1>
A free account is required to keep your collection synchronized. Please \
<a href="%s">sign up</a> for an account, then \
enter your details below.""") %
"https://ankiweb.net/account/login")
l.setOpenExternalLinks(True)
l.setWordWrap(True)
vbox.addWidget(l)
vbox.addSpacing(20)
g = QGridLayout()
l1 = QLabel(_("AnkiWeb ID:"))
g.addWidget(l1, 0, 0)
user = QLineEdit()
g.addWidget(user, 0, 1)
l2 = QLabel(_("Password:"))
g.addWidget(l2, 1, 0)
passwd = QLineEdit()
passwd.setEchoMode(QLineEdit.Password)
g.addWidget(passwd, 1, 1)
vbox.addLayout(g)
bb = QDialogButtonBox(QDialogButtonBox.Ok|QDialogButtonBox.Cancel)
bb.button(QDialogButtonBox.Ok).setAutoDefault(True)
self.connect(bb, SIGNAL("accepted()"), d.accept)
self.connect(bb, SIGNAL("rejected()"), d.reject)
vbox.addWidget(bb)
d.setLayout(vbox)
d.show()
d.exec_()
u = user.text()
p = passwd.text()
if not u or not p:
return
return (u, p)
def _confirmFullSync(self):
diag = askUserDialog(_("""\
Your decks here and on AnkiWeb differ in such a way that they can't \
be merged together, so it's necessary to overwrite the decks on one \
side with the decks from the other.
If you choose download, Anki will download the collection from AnkiWeb, \
and any changes you have made on your computer since the last sync will \
be lost.
If you choose upload, Anki will upload your collection to AnkiWeb, and \
any changes you have made on AnkiWeb or your other devices since the \
last sync to this device will be lost.
After all devices are in sync, future reviews and added cards can be merged \
automatically."""),
[_("Upload to AnkiWeb"),
_("Download from AnkiWeb"),
_("Cancel")])
diag.setDefault(2)
ret = diag.run()
if ret == _("Upload to AnkiWeb"):
self.thread.fullSyncChoice = "upload"
elif ret == _("Download from AnkiWeb"):
self.thread.fullSyncChoice = "download"
else:
self.thread.fullSyncChoice = "cancel"
def _clockOff(self):
showWarning(_("""\
Syncing requires the clock on your computer to be set correctly. Please \
fix the clock and try again."""))
def _checkFailed(self):
showWarning(_("""\
Your collection is in an inconsistent state. Please run Tools>\
Check Database, then sync again."""))
def badUserPass(self):
aqt.preferences.Preferences(self, self.pm.profile).dialog.tabWidget.\
setCurrentIndex(1)
# Sync thread
######################################################################
class SyncThread(QThread):
def __init__(self, path, hkey, auth=None, media=True):
QThread.__init__(self)
self.path = path
self.hkey = hkey
self.auth = auth
self.media = media
def run(self):
try:
self.col = Collection(self.path)
except:
self.fireEvent("corrupt")
return
self.server = RemoteServer(self.hkey)
self.client = Syncer(self.col, self.server)
self.sentTotal = 0
self.recvTotal = 0
# throttle updates; qt doesn't handle lots of posted events well
self.byteUpdate = time.time()
def syncEvent(type):
self.fireEvent("sync", type)
def canPost():
if (time.time() - self.byteUpdate) > 0.1:
self.byteUpdate = time.time()
return True
def sendEvent(bytes):
self.sentTotal += bytes
if canPost():
self.fireEvent("send", self.sentTotal)
def recvEvent(bytes):
self.recvTotal += bytes
if canPost():
self.fireEvent("recv", self.recvTotal)
addHook("sync", syncEvent)
addHook("httpSend", sendEvent)
addHook("httpRecv", recvEvent)
# run sync and catch any errors
try:
self._sync()
except:
err = traceback.format_exc()
if not isinstance(err, unicode):
err = unicode(err, "utf8", "replace")
self.fireEvent("error", err)
finally:
# don't bump mod time unless we explicitly save
self.col.close(save=False)
remHook("sync", syncEvent)
remHook("httpSend", sendEvent)
remHook("httpRecv", recvEvent)
def _sync(self):
if self.auth:
# need to authenticate and obtain host key
self.hkey = self.server.hostKey(*self.auth)
if not self.hkey:
# provided details were invalid
return self.fireEvent("badAuth")
else:
# write new details and tell calling thread to save
self.fireEvent("newKey", self.hkey)
# run sync and check state
try:
ret = self.client.sync()
except Exception, e:
log = traceback.format_exc()
try:
err = unicode(e[0], "utf8", "ignore")
except:
# number, exception with no args, etc
err = ""
if "Unable to find the server" in err:
self.fireEvent("offline")
else:
if not err:
err = log
if not isinstance(err, unicode):
err = unicode(err, "utf8", "replace")
self.fireEvent("error", err)
return
if ret == "badAuth":
return self.fireEvent("badAuth")
elif ret == "clockOff":
return self.fireEvent("clockOff")
elif ret == "basicCheckFailed" or ret == "sanityCheckFailed":
return self.fireEvent("checkFailed")
# note mediaUSN for later
self.mediaUsn = self.client.mediaUsn
# full sync?
if ret == "fullSync":
return self._fullSync()
# save and note success state
if ret == "noChanges":
self.fireEvent("noChanges")
else:
self.fireEvent("success")
# then move on to media sync
self._syncMedia()
def _fullSync(self):
# if the local deck is empty, assume user is trying to download
if self.col.isEmpty():
f = "download"
else:
# tell the calling thread we need a decision on sync direction, and
# wait for a reply
self.fullSyncChoice = False
self.fireEvent("fullSync")
while not self.fullSyncChoice:
time.sleep(0.1)
f = self.fullSyncChoice
if f == "cancel":
return
self.client = FullSyncer(self.col, self.hkey, self.server.con)
if f == "upload":
if not self.client.upload():
self.fireEvent("upbad")
else:
self.client.download()
# reopen db and move on to media sync
self.col.reopen()
self._syncMedia()
def _syncMedia(self):
if not self.media:
return
self.server = RemoteMediaServer(self.hkey, self.server.con)
self.client = MediaSyncer(self.col, self.server)
ret = self.client.sync(self.mediaUsn)
if ret == "noChanges":
self.fireEvent("noMediaChanges")
elif ret == "sanityCheckFailed":
self.fireEvent("mediaSanity")
else:
self.fireEvent("mediaSuccess")
def fireEvent(self, *args):
self.emit(SIGNAL("event"), *args)
# Monkey-patch httplib & httplib2 so we can get progress info
######################################################################
CHUNK_SIZE = 65536
import httplib, httplib2, errno
from cStringIO import StringIO
from anki.hooks import runHook
# sending in httplib
def _incrementalSend(self, data):
"""Send `data' to the server."""
if self.sock is None:
if self.auto_open:
self.connect()
else:
raise httplib.NotConnected()
# if it's not a file object, make it one
if not hasattr(data, 'read'):
if isinstance(data, unicode):
data = data.encode("utf8")
data = StringIO(data)
while 1:
block = data.read(CHUNK_SIZE)
if not block:
break
self.sock.sendall(block)
runHook("httpSend", len(block))
httplib.HTTPConnection.send = _incrementalSend
# receiving in httplib2
def _conn_request(self, conn, request_uri, method, body, headers):
for i in range(2):
try:
if conn.sock is None:
conn.connect()
conn.request(method, request_uri, body, headers)
except socket.timeout:
raise
except socket.gaierror:
conn.close()
raise httplib2.ServerNotFoundError(
"Unable to find the server at %s" % conn.host)
except httplib2.ssl_SSLError:
conn.close()
raise
except socket.error, e:
err = 0
if hasattr(e, 'args'):
err = getattr(e, 'args')[0]
else:
err = e.errno
if err == errno.ECONNREFUSED: # Connection refused
raise
except httplib.HTTPException:
# Just because the server closed the connection doesn't apparently mean
# that the server didn't send a response.
if conn.sock is None:
if i == 0:
conn.close()
conn.connect()
continue
else:
conn.close()
raise
if i == 0:
conn.close()
conn.connect()
continue
pass
try:
response = conn.getresponse()
except (socket.error, httplib.HTTPException):
if i == 0:
conn.close()
conn.connect()
continue
else:
raise
else:
content = ""
if method == "HEAD":
response.close()
else:
buf = StringIO()
while 1:
data = response.read(CHUNK_SIZE)
if not data:
break
buf.write(data)
runHook("httpRecv", len(data))
content = buf.getvalue()
response = httplib2.Response(response)
if method != "HEAD":
content = httplib2._decompressContent(response, content)
break
return (response, content)
httplib2.Http._conn_request = _conn_request