mirror of
https://github.com/ankitects/anki.git
synced 2025-09-18 14:02:21 -04:00
518 lines
18 KiB
Python
518 lines
18 KiB
Python
# -*- coding: utf-8 -*-
|
|
# Copyright: Damien Elmes <anki@ichi2.net>
|
|
# License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
|
|
|
|
import os
|
|
import re
|
|
import urllib
|
|
import unicodedata
|
|
import sys
|
|
import zipfile
|
|
from cStringIO import StringIO
|
|
|
|
import send2trash
|
|
from anki.utils import checksum, isWin, isMac, json
|
|
from anki.db import DB
|
|
from anki.consts import *
|
|
from anki.latex import mungeQA
|
|
|
|
|
|
class MediaManager(object):
|
|
|
|
soundRegexps = ["(?i)(\[sound:(?P<fname>[^]]+)\])"]
|
|
imgRegexps = [
|
|
# src element quoted case
|
|
"(?i)(<img[^>]+src=(?P<str>[\"'])(?P<fname>[^>]+?)(?P=str)[^>]*>)",
|
|
# unquoted case
|
|
"(?i)(<img[^>]+src=(?!['\"])(?P<fname>[^ >]+)[^>]*?>)",
|
|
]
|
|
regexps = soundRegexps + imgRegexps
|
|
|
|
def __init__(self, col, server):
|
|
self.col = col
|
|
if server:
|
|
self._dir = None
|
|
return
|
|
# media directory
|
|
self._dir = re.sub("(?i)\.(anki2)$", ".media", self.col.path)
|
|
# convert dir to unicode if it's not already
|
|
if isinstance(self._dir, str):
|
|
self._dir = unicode(self._dir, sys.getfilesystemencoding())
|
|
if not os.path.exists(self._dir):
|
|
os.makedirs(self._dir)
|
|
try:
|
|
self._oldcwd = os.getcwd()
|
|
except OSError:
|
|
# cwd doesn't exist
|
|
self._oldcwd = None
|
|
try:
|
|
os.chdir(self._dir)
|
|
except OSError:
|
|
raise Exception("invalidTempFolder")
|
|
# change database
|
|
self.connect()
|
|
|
|
def connect(self):
|
|
if self.col.server:
|
|
return
|
|
path = self.dir()+".db"
|
|
create = not os.path.exists(path)
|
|
os.chdir(self._dir)
|
|
self.db = DB(path)
|
|
if create:
|
|
self._initDB()
|
|
|
|
def close(self):
|
|
if self.col.server:
|
|
return
|
|
self.db.close()
|
|
self.db = None
|
|
# change cwd back to old location
|
|
if self._oldcwd:
|
|
try:
|
|
os.chdir(self._oldcwd)
|
|
except:
|
|
# may have been deleted
|
|
pass
|
|
|
|
def dir(self):
|
|
return self._dir
|
|
|
|
def _isFAT32(self):
|
|
if not isWin:
|
|
return
|
|
import win32api, win32file
|
|
try:
|
|
name = win32file.GetVolumeNameForVolumeMountPoint(self._dir[:3])
|
|
except:
|
|
# mapped & unmapped network drive; pray that it's not vfat
|
|
return
|
|
if win32api.GetVolumeInformation(name)[4].lower().startswith("fat"):
|
|
return True
|
|
|
|
# Adding media
|
|
##########################################################################
|
|
# opath must be in unicode
|
|
|
|
def addFile(self, opath):
|
|
return self.writeData(opath, open(opath, "rb").read())
|
|
|
|
def writeData(self, opath, data):
|
|
# if fname is a full path, use only the basename
|
|
fname = os.path.basename(opath)
|
|
# make sure we write it in NFC form (on mac will autoconvert to NFD),
|
|
# and return an NFC-encoded reference
|
|
fname = unicodedata.normalize("NFC", fname)
|
|
# remove any dangerous characters
|
|
base = self.stripIllegal(fname)
|
|
(root, ext) = os.path.splitext(base)
|
|
def repl(match):
|
|
n = int(match.group(1))
|
|
return " (%d)" % (n+1)
|
|
# find the first available name
|
|
csum = checksum(data)
|
|
while True:
|
|
fname = root + ext
|
|
path = os.path.join(self.dir(), fname)
|
|
# if it doesn't exist, copy it directly
|
|
if not os.path.exists(path):
|
|
open(path, "wb").write(data)
|
|
return fname
|
|
# if it's identical, reuse
|
|
if checksum(open(path, "rb").read()) == csum:
|
|
return fname
|
|
# otherwise, increment the index in the filename
|
|
reg = " \((\d+)\)$"
|
|
if not re.search(reg, root):
|
|
root = root + " (1)"
|
|
else:
|
|
root = re.sub(reg, repl, root)
|
|
|
|
# String manipulation
|
|
##########################################################################
|
|
|
|
def filesInStr(self, mid, string, includeRemote=False):
|
|
l = []
|
|
model = self.col.models.get(mid)
|
|
strings = []
|
|
if model['type'] == MODEL_CLOZE and "{{c" in string:
|
|
# if the field has clozes in it, we'll need to expand the
|
|
# possibilities so we can render latex
|
|
strings = self._expandClozes(string)
|
|
else:
|
|
strings = [string]
|
|
for string in strings:
|
|
# handle latex
|
|
string = mungeQA(string, None, None, model, None, self.col)
|
|
# extract filenames
|
|
for reg in self.regexps:
|
|
for match in re.finditer(reg, string):
|
|
fname = match.group("fname")
|
|
isLocal = not re.match("(https?|ftp)://", fname.lower())
|
|
if isLocal or includeRemote:
|
|
l.append(fname)
|
|
return l
|
|
|
|
def _expandClozes(self, string):
|
|
ords = set(re.findall("{{c(\d+)::.+?}}", string))
|
|
strings = []
|
|
from anki.template.template import clozeReg
|
|
def qrepl(m):
|
|
if m.group(3):
|
|
return "[%s]" % m.group(3)
|
|
else:
|
|
return "[...]"
|
|
def arepl(m):
|
|
return m.group(1)
|
|
for ord in ords:
|
|
s = re.sub(clozeReg%ord, qrepl, string)
|
|
s = re.sub(clozeReg%".+?", "\\1", s)
|
|
strings.append(s)
|
|
strings.append(re.sub(clozeReg%".+?", arepl, string))
|
|
return strings
|
|
|
|
def transformNames(self, txt, func):
|
|
for reg in self.regexps:
|
|
txt = re.sub(reg, func, txt)
|
|
return txt
|
|
|
|
def strip(self, txt):
|
|
for reg in self.regexps:
|
|
txt = re.sub(reg, "", txt)
|
|
return txt
|
|
|
|
def escapeImages(self, string):
|
|
def repl(match):
|
|
tag = match.group(0)
|
|
fname = match.group("fname")
|
|
if re.match("(https?|ftp)://", fname):
|
|
return tag
|
|
return tag.replace(
|
|
fname, urllib.quote(fname.encode("utf-8")))
|
|
for reg in self.imgRegexps:
|
|
string = re.sub(reg, repl, string)
|
|
return string
|
|
|
|
# Rebuilding DB
|
|
##########################################################################
|
|
|
|
def check(self, local=None):
|
|
"Return (missingFiles, unusedFiles)."
|
|
mdir = self.dir()
|
|
# gather all media references in NFC form
|
|
allRefs = set()
|
|
for nid, mid, flds in self.col.db.execute("select id, mid, flds from notes"):
|
|
noteRefs = self.filesInStr(mid, flds)
|
|
# check the refs are in NFC
|
|
for f in noteRefs:
|
|
# if they're not, we'll need to fix them first
|
|
if f != unicodedata.normalize("NFC", f):
|
|
self._normalizeNoteRefs(nid)
|
|
noteRefs = self.filesInStr(mid, flds)
|
|
break
|
|
allRefs.update(noteRefs)
|
|
# loop through media folder
|
|
unused = []
|
|
invalid = []
|
|
if local is None:
|
|
files = os.listdir(mdir)
|
|
else:
|
|
files = local
|
|
for file in files:
|
|
if not local:
|
|
if not os.path.isfile(file):
|
|
# ignore directories
|
|
continue
|
|
if file.startswith("_"):
|
|
# leading _ says to ignore file
|
|
continue
|
|
if not isinstance(file, unicode):
|
|
invalid.append(unicode(file, sys.getfilesystemencoding(), "replace"))
|
|
continue
|
|
nfcFile = unicodedata.normalize("NFC", file)
|
|
# we enforce NFC fs encoding on non-macs; on macs we'll have gotten
|
|
# NFD so we use the above variable for comparing references
|
|
if not isMac and not local:
|
|
if file != nfcFile:
|
|
# delete if we already have the NFC form, otherwise rename
|
|
if os.path.exists(nfcFile):
|
|
os.unlink(file)
|
|
else:
|
|
os.rename(file, nfcFile)
|
|
file = nfcFile
|
|
# compare
|
|
if nfcFile not in allRefs:
|
|
unused.append(file)
|
|
else:
|
|
allRefs.discard(nfcFile)
|
|
nohave = [x for x in allRefs if not x.startswith("_")]
|
|
return (nohave, unused, invalid)
|
|
|
|
def _normalizeNoteRefs(self, nid):
|
|
note = self.col.getNote(nid)
|
|
for c, fld in enumerate(note.fields):
|
|
nfc = unicodedata.normalize("NFC", fld)
|
|
if nfc != fld:
|
|
note.fields[c] = nfc
|
|
note.flush()
|
|
|
|
# Copying on import
|
|
##########################################################################
|
|
|
|
def have(self, fname):
|
|
return os.path.exists(os.path.join(self.dir(), fname))
|
|
|
|
# Media syncing - changes and removal
|
|
##########################################################################
|
|
|
|
def hasChanged(self):
|
|
return self.db.scalar("select 1 from log limit 1")
|
|
|
|
def removed(self):
|
|
return self.db.list("select * from log where type = ?", MEDIA_REM)
|
|
|
|
def syncRemove(self, fnames):
|
|
# remove provided deletions
|
|
for f in fnames:
|
|
if os.path.exists(f):
|
|
send2trash.send2trash(f)
|
|
self.db.execute("delete from log where fname = ?", f)
|
|
self.db.execute("delete from media where fname = ?", f)
|
|
# and all locally-logged deletions, as server has acked them
|
|
self.db.execute("delete from log where type = ?", MEDIA_REM)
|
|
self.db.commit()
|
|
|
|
# Media syncing - unbundling zip files from server
|
|
##########################################################################
|
|
|
|
def syncAdd(self, zipData):
|
|
"Extract zip data; true if finished."
|
|
f = StringIO(zipData)
|
|
z = zipfile.ZipFile(f, "r")
|
|
finished = False
|
|
meta = None
|
|
media = []
|
|
# get meta info first
|
|
meta = json.loads(z.read("_meta"))
|
|
nextUsn = int(z.read("_usn"))
|
|
# then loop through all files
|
|
for i in z.infolist():
|
|
if i.filename == "_meta" or i.filename == "_usn":
|
|
# ignore previously-retrieved meta
|
|
continue
|
|
elif i.filename == "_finished":
|
|
# last zip in set
|
|
finished = True
|
|
else:
|
|
data = z.read(i)
|
|
csum = checksum(data)
|
|
name = meta[i.filename]
|
|
if not isinstance(name, unicode):
|
|
name = unicode(name, "utf8")
|
|
# normalize name for platform
|
|
if isMac:
|
|
name = unicodedata.normalize("NFD", name)
|
|
else:
|
|
name = unicodedata.normalize("NFC", name)
|
|
# save file
|
|
open(name, "wb").write(data)
|
|
# update db
|
|
media.append((name, csum, self._mtime(name)))
|
|
# remove entries from local log
|
|
self.db.execute("delete from log where fname = ?", name)
|
|
# update media db and note new starting usn
|
|
if media:
|
|
self.db.executemany(
|
|
"insert or replace into media values (?,?,?)", media)
|
|
self.setUsn(nextUsn) # commits
|
|
# if we have finished adding, we need to record the new folder mtime
|
|
# so that we don't trigger a needless scan
|
|
if finished:
|
|
self.syncMod()
|
|
return finished
|
|
|
|
# Illegal characters
|
|
##########################################################################
|
|
|
|
_illegalCharReg = re.compile(r'[][><:"/?*^\\|\0]')
|
|
|
|
def stripIllegal(self, str):
|
|
return re.sub(self._illegalCharReg, "", str)
|
|
|
|
def hasIllegal(self, str):
|
|
# a file that couldn't be decoded to unicode is considered invalid
|
|
if not isinstance(str, unicode):
|
|
return False
|
|
return not not re.search(self._illegalCharReg, str)
|
|
|
|
# Media syncing - bundling zip files to send to server
|
|
##########################################################################
|
|
# Because there's no standard filename encoding for zips, and because not
|
|
# all zip clients support retrieving mtime, we store the files as ascii
|
|
# and place a json file in the zip with the necessary information.
|
|
|
|
def zipAdded(self):
|
|
"Add files to a zip until over SYNC_ZIP_SIZE/COUNT. Return zip data."
|
|
f = StringIO()
|
|
z = zipfile.ZipFile(f, "w", compression=zipfile.ZIP_DEFLATED)
|
|
sz = 0
|
|
cnt = 0
|
|
files = {}
|
|
cur = self.db.execute(
|
|
"select fname from log where type = ?", MEDIA_ADD)
|
|
fnames = []
|
|
while 1:
|
|
fname = cur.fetchone()
|
|
if not fname:
|
|
# add a flag so the server knows it can clean up
|
|
z.writestr("_finished", "")
|
|
break
|
|
fname = fname[0]
|
|
# we add it as a one-element array simply to make
|
|
# the later forgetAdded() call easier
|
|
fnames.append([fname])
|
|
z.write(fname, str(cnt))
|
|
files[str(cnt)] = unicodedata.normalize("NFC", fname)
|
|
sz += os.path.getsize(fname)
|
|
if sz > SYNC_ZIP_SIZE or cnt > SYNC_ZIP_COUNT:
|
|
break
|
|
cnt += 1
|
|
z.writestr("_meta", json.dumps(files))
|
|
z.close()
|
|
return f.getvalue(), fnames
|
|
|
|
def forgetAdded(self, fnames):
|
|
if not fnames:
|
|
return
|
|
self.db.executemany("delete from log where fname = ?", fnames)
|
|
self.db.commit()
|
|
|
|
# Tracking changes (private)
|
|
##########################################################################
|
|
|
|
def _initDB(self):
|
|
self.db.executescript("""
|
|
create table media (fname text primary key, csum text, mod int);
|
|
create table meta (dirMod int, usn int); insert into meta values (0, 0);
|
|
create table log (fname text primary key, type int);
|
|
""")
|
|
|
|
def _mtime(self, path):
|
|
return int(os.stat(path).st_mtime)
|
|
|
|
def _checksum(self, path):
|
|
return checksum(open(path, "rb").read())
|
|
|
|
def usn(self):
|
|
return self.db.scalar("select usn from meta")
|
|
|
|
def setUsn(self, usn):
|
|
self.db.execute("update meta set usn = ?", usn)
|
|
self.db.commit()
|
|
|
|
def syncMod(self):
|
|
self.db.execute("update meta set dirMod = ?", self._mtime(self.dir()))
|
|
self.db.commit()
|
|
|
|
def _changed(self):
|
|
"Return dir mtime if it has changed since the last findChanges()"
|
|
# doesn't track edits, but user can add or remove a file to update
|
|
mod = self.db.scalar("select dirMod from meta")
|
|
mtime = self._mtime(self.dir())
|
|
if not self._isFAT32() and mod and mod == mtime:
|
|
return False
|
|
return mtime
|
|
|
|
def findChanges(self):
|
|
"Scan the media folder if it's changed, and note any changes."
|
|
if self._changed():
|
|
self._logChanges()
|
|
|
|
def _logChanges(self):
|
|
(added, removed) = self._changes()
|
|
log = []
|
|
media = []
|
|
mediaRem = []
|
|
for f in added:
|
|
mt = self._mtime(f)
|
|
media.append((f, self._checksum(f), mt))
|
|
log.append((f, MEDIA_ADD))
|
|
for f in removed:
|
|
mediaRem.append((f,))
|
|
log.append((f, MEDIA_REM))
|
|
# update media db
|
|
self.db.executemany("insert or replace into media values (?,?,?)",
|
|
media)
|
|
if mediaRem:
|
|
self.db.executemany("delete from media where fname = ?",
|
|
mediaRem)
|
|
self.db.execute("update meta set dirMod = ?", self._mtime(self.dir()))
|
|
# and logs
|
|
self.db.executemany("insert or replace into log values (?,?)", log)
|
|
self.db.commit()
|
|
|
|
def _changes(self):
|
|
self.cache = {}
|
|
for (name, csum, mod) in self.db.execute(
|
|
"select * from media"):
|
|
self.cache[name] = [csum, mod, False]
|
|
added = []
|
|
removed = []
|
|
# loop through on-disk files
|
|
for f in os.listdir(self.dir()):
|
|
# ignore folders and thumbs.db
|
|
if os.path.isdir(f):
|
|
continue
|
|
if f.lower() == "thumbs.db":
|
|
continue
|
|
# and files with invalid chars
|
|
if self.hasIllegal(f):
|
|
continue
|
|
# empty files are invalid; clean them up and continue
|
|
if not os.path.getsize(f):
|
|
os.unlink(f)
|
|
continue
|
|
# newly added?
|
|
if f not in self.cache:
|
|
added.append(f)
|
|
else:
|
|
# modified since last time?
|
|
if self._mtime(f) != self.cache[f][1]:
|
|
# and has different checksum?
|
|
if self._checksum(f) != self.cache[f][0]:
|
|
added.append(f)
|
|
# mark as used
|
|
self.cache[f][2] = True
|
|
# look for any entries in the cache that no longer exist on disk
|
|
for (k, v) in self.cache.items():
|
|
if not v[2]:
|
|
removed.append(k)
|
|
return added, removed
|
|
|
|
def sanityCheck(self):
|
|
assert not self.db.scalar("select count() from log")
|
|
cnt = self.db.scalar("select count() from media")
|
|
return cnt
|
|
|
|
def forceResync(self):
|
|
self.db.execute("delete from media")
|
|
self.db.execute("delete from log")
|
|
self.db.execute("update meta set usn = 0, dirMod = 0")
|
|
self.db.commit()
|
|
|
|
def removeExisting(self, files):
|
|
"Remove files from list of files to sync, and return missing files."
|
|
need = []
|
|
remove = []
|
|
for f in files:
|
|
if self.db.scalar("select 1 from log where fname=?", f):
|
|
remove.append((f,))
|
|
else:
|
|
need.append(f)
|
|
self.db.executemany("delete from log where fname=?", remove)
|
|
self.db.commit()
|
|
# if we need all the server files, it's faster to pass None than
|
|
# the full list
|
|
if need and len(files) == len(need):
|
|
return None
|
|
return need
|