anki-connect/AnkiConnect.py

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2016-05-21 22:10:12 +00:00
# Copyright (C) 2016 Alex Yatskov <alex@foosoft.net>
# Author: Alex Yatskov <alex@foosoft.net>
#
# This program 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.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
import anki
import aqt
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import base64
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import hashlib
import inspect
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import json
import os
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import os.path
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import re
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import select
import socket
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import sys
from operator import itemgetter
from time import time
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from unicodedata import normalize
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#
# Constants
#
API_VERSION = 6
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NET_ADDRESS = os.getenv('ANKICONNECT_BIND_ADDRESS', '127.0.0.1')
NET_BACKLOG = 5
NET_PORT = 8765
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TICK_INTERVAL = 25
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URL_TIMEOUT = 10
URL_UPGRADE = 'https://raw.githubusercontent.com/FooSoft/anki-connect/master/AnkiConnect.py'
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#
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# Helpers
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#
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if sys.version_info[0] < 3:
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import urllib2
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web = urllib2
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from PyQt4.QtCore import QTimer
from PyQt4.QtGui import QMessageBox
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else:
unicode = str
from urllib import request
web = request
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from PyQt5.QtCore import QTimer
from PyQt5.QtWidgets import QMessageBox
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def makeBytes(data):
return data.encode('utf-8')
def makeStr(data):
return data.decode('utf-8')
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def api(*versions):
def decorator(func):
method = lambda *args, **kwargs: func(*args, **kwargs)
setattr(method, 'versions', versions)
setattr(method, 'api', True)
return method
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return decorator
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#
# WebRequest
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#
class WebRequest:
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def __init__(self, headers, body):
self.headers = headers
self.body = body
#
# WebClient
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#
class WebClient:
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def __init__(self, sock, handler):
self.sock = sock
self.handler = handler
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self.readBuff = bytes()
self.writeBuff = bytes()
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def advance(self, recvSize=1024):
if self.sock is None:
return False
rlist, wlist = select.select([self.sock], [self.sock], [], 0)[:2]
if rlist:
msg = self.sock.recv(recvSize)
if not msg:
self.close()
return False
self.readBuff += msg
req, length = self.parseRequest(self.readBuff)
if req is not None:
self.readBuff = self.readBuff[length:]
self.writeBuff += self.handler(req)
if wlist and self.writeBuff:
length = self.sock.send(self.writeBuff)
self.writeBuff = self.writeBuff[length:]
if not self.writeBuff:
self.close()
return False
return True
def close(self):
if self.sock is not None:
self.sock.close()
self.sock = None
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self.readBuff = bytes()
self.writeBuff = bytes()
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def parseRequest(self, data):
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parts = data.split(makeBytes('\r\n\r\n'), 1)
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if len(parts) == 1:
return None, 0
headers = {}
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for line in parts[0].split(makeBytes('\r\n')):
pair = line.split(makeBytes(': '))
headers[pair[0].lower()] = pair[1] if len(pair) > 1 else None
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headerLength = len(parts[0]) + 4
bodyLength = int(headers.get(makeBytes('content-length'), 0))
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totalLength = headerLength + bodyLength
if totalLength > len(data):
return None, 0
body = data[headerLength : totalLength]
return WebRequest(headers, body), totalLength
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#
# WebServer
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#
class WebServer:
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def __init__(self, handler):
self.handler = handler
self.clients = []
self.sock = None
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self.resetHeaders()
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def setHeader(self, name, value):
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self.headersOpt[name] = value
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def resetHeaders(self):
self.headers = [
['HTTP/1.1 200 OK', None],
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['Content-Type', 'text/json'],
['Access-Control-Allow-Origin', '*']
]
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self.headersOpt = {}
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def getHeaders(self):
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headers = self.headers[:]
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for name in self.headersOpt:
headers.append([name, self.headersOpt[name]])
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return headers
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def advance(self):
if self.sock is not None:
self.acceptClients()
self.advanceClients()
def acceptClients(self):
rlist = select.select([self.sock], [], [], 0)[0]
if not rlist:
return
clientSock = self.sock.accept()[0]
if clientSock is not None:
clientSock.setblocking(False)
self.clients.append(WebClient(clientSock, self.handlerWrapper))
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def advanceClients(self):
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self.clients = list(filter(lambda c: c.advance(), self.clients))
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def listen(self):
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self.close()
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.sock.setblocking(False)
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self.sock.bind((NET_ADDRESS, NET_PORT))
self.sock.listen(NET_BACKLOG)
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def handlerWrapper(self, req):
if len(req.body) == 0:
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body = makeBytes('AnkiConnect v.{}'.format(API_VERSION))
else:
try:
params = json.loads(makeStr(req.body))
body = makeBytes(json.dumps(self.handler(params)))
except ValueError:
body = makeBytes(json.dumps(None))
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resp = bytes()
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self.setHeader('Content-Length', str(len(body)))
headers = self.getHeaders()
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for key, value in headers:
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if value is None:
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resp += makeBytes('{}\r\n'.format(key))
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else:
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resp += makeBytes('{}: {}\r\n'.format(key, value))
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resp += makeBytes('\r\n')
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resp += body
return resp
def close(self):
if self.sock is not None:
self.sock.close()
self.sock = None
for client in self.clients:
client.close()
self.clients = []
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#
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# AnkiConnect
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#
class AnkiConnect:
def __init__(self):
self.server = WebServer(self.handler)
try:
self.server.listen()
self.timer = QTimer()
self.timer.timeout.connect(self.advance)
self.timer.start(TICK_INTERVAL)
except:
QMessageBox.critical(
self.window(),
'AnkiConnect',
'Failed to listen on port {}.\nMake sure it is available and is not in use.'.format(NET_PORT)
)
def advance(self):
self.server.advance()
def handler(self, request):
name = request.get('action', '')
version = request.get('version', 4)
params = request.get('params', {})
reply = {'result': None, 'error': None}
try:
method = None
for methodName, methodInst in inspect.getmembers(self, predicate=inspect.ismethod):
apiVersionLast = 0
apiNameLast = None
if getattr(methodInst, 'api', False):
for apiVersion, apiName in getattr(methodInst, 'versions', []):
if apiVersionLast < apiVersion <= version:
apiVersionLast = apiVersion
apiNameLast = apiName
if apiNameLast is None and apiVersionLast == 0:
apiNameLast = methodName
if apiNameLast is not None and apiNameLast == name:
method = methodInst
break
if method is None:
raise Exception('unsupported action')
else:
reply['result'] = methodInst(**params)
except Exception as e:
reply['error'] = str(e)
if version > 4:
return reply
else:
return reply['result']
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def download(self, url):
resp = web.urlopen(url, timeout=URL_TIMEOUT)
if resp.code == 200:
return resp.read()
else:
raise Exception('return code for download of {} was {}'.format(url, resp.code))
def window(self):
return aqt.mw
def reviewer(self):
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reviewer = self.window().reviewer
if reviewer is None:
raise Exception('reviewer is not available')
else:
return reviewer
def collection(self):
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collection = self.window().col
if collection is None:
raise Exception('collection is not available')
else:
return collection
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def decks(self):
decks = self.collection().decks
if decks is None:
raise Exception('decks are not available')
else:
return decks
def scheduler(self):
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scheduler = self.collection().sched
if scheduler is None:
raise Exception('scheduler is not available')
else:
return scheduler
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def database(self):
database = self.collection().db
if database is None:
raise Exception('database is not available')
else:
return database
def media(self):
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media = self.collection().media
if media is None:
raise Exception('media is not available')
else:
return media
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def startEditing(self):
self.window().requireReset()
def stopEditing(self):
if self.collection() is not None:
self.window().maybeReset()
def createNote(self, note):
collection = self.collection()
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model = collection.models.byName(note['modelName'])
if model is None:
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raise Exception('model was not found: {}'.format(note['modelName']))
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deck = collection.decks.byName(note['deckName'])
if deck is None:
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raise Exception('deck was not found: {}'.format(note['deckName']))
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ankiNote = anki.notes.Note(collection, model)
ankiNote.model()['did'] = deck['id']
ankiNote.tags = note['tags']
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for name, value in note['fields'].items():
if name in ankiNote:
ankiNote[name] = value
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duplicateOrEmpty = ankiNote.dupeOrEmpty()
if duplicateOrEmpty == 1:
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raise Exception('cannot create note because it is empty')
elif duplicateOrEmpty == 2:
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raise Exception('cannot create note because it is a duplicate')
elif duplicateOrEmpty == False:
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return ankiNote
else:
raise Exception('cannot create note for unknown reason')
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#
# Miscellaneous
#
@api()
def version(self):
return API_VERSION
@api()
def upgrade(self):
response = QMessageBox.question(
self.window(),
'AnkiConnect',
'Upgrade to the latest version?',
QMessageBox.Yes | QMessageBox.No
)
if response == QMessageBox.Yes:
try:
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data = self.download(URL_UPGRADE)
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path = os.path.splitext(__file__)[0] + '.py'
with open(path, 'w') as fp:
fp.write(makeStr(data))
QMessageBox.information(
self.window(),
'AnkiConnect',
'Upgraded to the latest version, please restart Anki.'
)
return True
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except Exception as e:
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QMessageBox.critical(self.window(), 'AnkiConnect', 'Failed to download latest version.')
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raise e
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return False
@api()
def sync(self):
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self.window().onSync()
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@api()
def multi(self, actions):
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return map(self.handler, actions)
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#
# Decks
#
@api()
def deckNames(self):
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return self.decks().allNames()
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@api()
def deckNamesAndIds(self):
decks = {}
for deck in self.deckNames():
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decks[deck] = self.decks().id(deck)
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return decks
@api()
def getDecks(self, cards):
decks = {}
for card in cards:
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did = self.database().scalar('select did from cards where id=?', card)
deck = self.decks().get(did)['name']
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if deck in decks:
decks[deck].append(card)
else:
decks[deck] = [card]
return decks
@api()
def createDeck(self, deck):
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try:
self.startEditing()
did = self.decks().id(deck)
finally:
self.stopEditing()
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return did
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@api()
def changeDeck(self, cards, deck):
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self.startEditing()
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did = self.collection().decks.id(deck)
mod = anki.utils.intTime()
usn = self.collection().usn()
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# normal cards
scids = anki.utils.ids2str(cards)
# remove any cards from filtered deck first
self.collection().sched.remFromDyn(cards)
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# then move into new deck
self.collection().db.execute('update cards set usn=?, mod=?, did=? where id in ' + scids, usn, mod, did)
self.stopEditing()
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@api()
def deleteDecks(self, decks, cardsToo=False):
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try:
self.startEditing()
decks = filter(lambda d: d in self.deckNames(), decks)
for deck in decks:
did = self.decks().id(deck)
self.decks().rem(did, cardsToo)
finally:
self.stopEditing()
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@api()
def getDeckConfig(self, deck):
if not deck in self.deckNames():
return False
collection = self.collection()
did = collection.decks.id(deck)
return collection.decks.confForDid(did)
@api()
def saveDeckConfig(self, config):
collection = self.collection()
config['id'] = str(config['id'])
config['mod'] = anki.utils.intTime()
config['usn'] = collection.usn()
if not config['id'] in collection.decks.dconf:
return False
collection.decks.dconf[config['id']] = config
collection.decks.changed = True
return True
@api()
def setDeckConfigId(self, decks, configId):
configId = str(configId)
for deck in decks:
if not deck in self.deckNames():
return False
collection = self.collection()
if not configId in collection.decks.dconf:
return False
for deck in decks:
did = str(collection.decks.id(deck))
aqt.mw.col.decks.decks[did]['conf'] = configId
return True
@api()
def cloneDeckConfigId(self, name, cloneFrom='1'):
configId = str(cloneFrom)
if not configId in self.collection().decks.dconf:
return False
config = self.collection().decks.getConf(configId)
return self.collection().decks.confId(name, config)
@api()
def removeDeckConfigId(self, configId):
configId = str(configId)
collection = self.collection()
if configId == 1 or not configId in collection.decks.dconf:
return False
collection.decks.remConf(configId)
return True
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@api()
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def storeMediaFile(self, filename, data):
self.deleteMediaFile(filename)
self.media().writeData(filename, base64.b64decode(data))
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@api()
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def retrieveMediaFile(self, filename):
filename = os.path.basename(filename)
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filename = normalize('NFC', filename)
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filename = self.media().stripIllegal(filename)
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path = os.path.join(self.media().dir(), filename)
if os.path.exists(path):
with open(path, 'rb') as file:
return base64.b64encode(file.read()).decode('ascii')
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return False
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@api()
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def deleteMediaFile(self, filename):
self.media().syncDelete(filename)
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@api()
def addNote(self, note):
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ankiNote = self.createNote(note)
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audio = note.get('audio')
if audio is not None and len(audio['fields']) > 0:
try:
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data = self.download(audio['url'])
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skipHash = audio.get('skipHash')
if skipHash is None:
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skip = False
else:
m = hashlib.md5()
m.update(data)
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skip = skipHash == m.hexdigest()
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if not skip:
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for field in audio['fields']:
if field in ankiNote:
ankiNote[field] += u'[sound:{}]'.format(audio['filename'])
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self.media().writeData(audio['filename'], data)
except:
pass
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collection = self.collection()
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self.startEditing()
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collection.addNote(ankiNote)
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collection.autosave()
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self.stopEditing()
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return ankiNote.id
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@api()
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def canAddNote(self, note):
try:
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return bool(self.createNote(note))
except:
return False
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@api()
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def updateNoteFields(self, note):
ankiNote = self.collection().getNote(note['id'])
if ankiNote is None:
raise Exception('note was not found: {}'.format(note['id']))
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for name, value in note['fields'].items():
if name in ankiNote:
ankiNote[name] = value
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ankiNote.flush()
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@api()
def addTags(self, notes, tags, add=True):
self.startEditing()
self.collection().tags.bulkAdd(notes, tags, add)
self.stopEditing()
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@api()
def removeTags(self, notes, tags):
return self.addTags(notes, tags, False)
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@api()
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def getTags(self):
return self.collection().tags.all()
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@api()
def suspend(self, cards, suspend=True):
for card in cards:
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if self.suspended(card) == suspend:
cards.remove(card)
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if len(cards) == 0:
return False
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scheduler = self.scheduler()
self.startEditing()
if suspend:
scheduler.suspendCards(cards)
else:
scheduler.unsuspendCards(cards)
self.stopEditing()
return True
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@api()
def unsuspend(self, cards):
self.suspend(cards, False)
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@api()
def suspended(self, card):
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card = self.collection().getCard(card)
return card.queue == -1
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@api()
def areSuspended(self, cards):
suspended = []
for card in cards:
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suspended.append(self.suspended(card))
return suspended
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@api()
def areDue(self, cards):
due = []
for card in cards:
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if self.findCards('cid:{} is:new'.format(card)):
due.append(True)
else:
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date, ivl = self.collection().db.all('select id/1000.0, ivl from revlog where cid = ?', card)[-1]
if ivl >= -1200:
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due.append(bool(self.findCards('cid:{} is:due'.format(card))))
else:
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due.append(date - ivl <= time())
return due
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@api()
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def getIntervals(self, cards, complete=False):
intervals = []
for card in cards:
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if self.findCards('cid:{} is:new'.format(card)):
intervals.append(0)
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else:
interval = self.collection().db.list('select ivl from revlog where cid = ?', card)
if not complete:
interval = interval[-1]
intervals.append(interval)
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return intervals
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@api()
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def modelNames(self):
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return self.collection().models.allNames()
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@api()
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def modelNamesAndIds(self):
models = {}
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for model in self.modelNames():
models[model] = int(self.collection().models.byName(model)['id'])
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return models
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@api()
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def modelNameFromId(self, modelId):
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model = self.collection().models.get(modelId)
if model is None:
raise Exception('model was not found: {}'.format(modelId))
else:
return model['name']
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@api()
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def modelFieldNames(self, modelName):
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model = self.collection().models.byName(modelName)
if model is None:
raise Exception('model was not found: {}'.format(modelName))
else:
return [field['name'] for field in model['flds']]
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@api()
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def modelFieldsOnTemplates(self, modelName):
model = self.collection().models.byName(modelName)
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if model is None:
raise Exception('model was not found: {}'.format(modelName))
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templates = {}
for template in model['tmpls']:
fields = []
for side in ['qfmt', 'afmt']:
fieldsForSide = []
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# based on _fieldsOnTemplate from aqt/clayout.py
matches = re.findall('{{[^#/}]+?}}', template[side])
for match in matches:
# remove braces and modifiers
match = re.sub(r'[{}]', '', match)
match = match.split(':')[-1]
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# for the answer side, ignore fields present on the question side + the FrontSide field
if match == 'FrontSide' or side == 'afmt' and match in fields[0]:
continue
fieldsForSide.append(match)
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fields.append(fieldsForSide)
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templates[template['name']] = fields
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return templates
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@api()
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def deckNameFromId(self, deckId):
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deck = self.collection().decks.get(deckId)
if deck is None:
raise Exception('deck was not found: {}'.format(deckId))
else:
return deck['name']
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@api()
def findNotes(self, query=None):
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if query is None:
return []
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else:
return self.collection().findNotes(query)
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@api()
def findCards(self, query=None):
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if query is None:
return []
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else:
return self.collection().findCards(query)
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@api()
def cardsInfo(self, cards):
result = []
for cid in cards:
try:
card = self.collection().getCard(cid)
model = card.model()
note = card.note()
fields = {}
for info in model['flds']:
order = info['ord']
name = info['name']
fields[name] = {'value': note.fields[order], 'order': order}
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result.append({
'cardId': card.id,
'fields': fields,
'fieldOrder': card.ord,
'question': card._getQA()['q'],
'answer': card._getQA()['a'],
'modelName': model['name'],
'deckName': self.deckNameFromId(card.did),
'css': model['css'],
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'factor': card.factor,
#This factor is 10 times the ease percentage,
# so an ease of 310% would be reported as 3100
'interval': card.ivl,
'note': card.nid
})
except TypeError as e:
# Anki will give a TypeError if the card ID does not exist.
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# Best behavior is probably to add an 'empty card' to the
# returned result, so that the items of the input and return
# lists correspond.
result.append({})
return result
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@api()
def notesInfo(self, notes):
result = []
for nid in notes:
try:
note = self.collection().getNote(nid)
model = note.model()
fields = {}
for info in model['flds']:
order = info['ord']
name = info['name']
fields[name] = {'value': note.fields[order], 'order': order}
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result.append({
'noteId': note.id,
'tags' : note.tags,
'fields': fields,
'modelName': model['name'],
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'cards': self.collection().db.list('select id from cards where nid = ? order by ord', note.id)
})
except TypeError as e:
# Anki will give a TypeError if the note ID does not exist.
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# Best behavior is probably to add an 'empty card' to the
# returned result, so that the items of the input and return
# lists correspond.
result.append({})
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return result
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@api()
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def cardsToNotes(self, cards):
return self.collection().db.list('select distinct nid from cards where id in ' + anki.utils.ids2str(cards))
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@api()
def guiBrowse(self, query=None):
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browser = aqt.dialogs.open('Browser', self.window())
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browser.activateWindow()
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if query is not None:
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browser.form.searchEdit.lineEdit().setText(query)
if hasattr(browser, 'onSearch'):
browser.onSearch()
else:
browser.onSearchActivated()
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return browser.model.cards
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@api()
def guiAddCards(self):
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addCards = aqt.dialogs.open('AddCards', self.window())
addCards.activateWindow()
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@api()
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def guiReviewActive(self):
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return self.reviewer().card is not None and self.window().state == 'review'
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@api()
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def guiCurrentCard(self):
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if not self.guiReviewActive():
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raise Exception('Gui review is not currently active.')
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reviewer = self.reviewer()
card = reviewer.card
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model = card.model()
note = card.note()
fields = {}
for info in model['flds']:
order = info['ord']
name = info['name']
fields[name] = {'value': note.fields[order], 'order': order}
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if card is not None:
return {
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'cardId': card.id,
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'fields': fields,
'fieldOrder': card.ord,
'question': card._getQA()['q'],
'answer': card._getQA()['a'],
'buttons': [b[0] for b in reviewer._answerButtonList()],
'modelName': model['name'],
'deckName': self.deckNameFromId(card.did),
'css': model['css'],
'template': card.template()['name']
}
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@api()
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def guiStartCardTimer(self):
if not self.guiReviewActive():
return False
card = self.reviewer().card
if card is not None:
card.startTimer()
return True
else:
return False
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@api()
def guiShowQuestion(self):
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if self.guiReviewActive():
self.reviewer()._showQuestion()
return True
else:
return False
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@api()
def guiShowAnswer(self):
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if self.guiReviewActive():
self.window().reviewer._showAnswer()
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return True
else:
return False
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@api()
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def guiAnswerCard(self, ease):
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if not self.guiReviewActive():
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return False
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reviewer = self.reviewer()
if reviewer.state != 'answer':
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return False
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if ease <= 0 or ease > self.scheduler().answerButtons(reviewer.card):
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return False
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reviewer._answerCard(ease)
return True
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@api()
def guiDeckOverview(self, name):
collection = self.collection()
if collection is not None:
deck = collection.decks.byName(name)
if deck is not None:
collection.decks.select(deck['id'])
self.window().onOverview()
return True
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return False
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@api()
def guiDeckBrowser(self):
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self.window().moveToState('deckBrowser')
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@api()
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def guiDeckReview(self, name):
if self.guiDeckOverview(name):
self.window().moveToState('review')
return True
else:
return False
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@api()
def guiExitAnki(self):
timer = QTimer()
def exitAnki():
timer.stop()
self.window().close()
timer.timeout.connect(exitAnki)
timer.start(1000) # 1s should be enough to allow the response to be sent.
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@api()
def addNotes(self, notes):
results = []
for note in notes:
try:
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results.append(self.addNote(note))
except Exception:
results.append(None)
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return results
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@api()
def canAddNotes(self, notes):
results = []
for note in notes:
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results.append(self.canAddNote(note))
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return results
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#
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# Entry
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#
ac = AnkiConnect()