4 from collections import deque
7 from twisted.internet import defer, reactor, task
8 from twisted.python.failure import Failure
9 from twisted.python import runtime
10 from twisted.application import service
12 from allmydata.util import fileutil
13 from allmydata.interfaces import IDirectoryNode
14 from allmydata.util import log
15 from allmydata.util.fileutil import precondition_abspath, get_pathinfo, ConflictError
16 from allmydata.util.assertutil import precondition, _assert
17 from allmydata.util.deferredutil import HookMixin
18 from allmydata.util.encodingutil import listdir_filepath, to_filepath, \
19 extend_filepath, unicode_from_filepath, unicode_segments_from, \
20 quote_filepath, quote_local_unicode_path, quote_output, FilenameEncodingError
21 from allmydata.immutable.upload import FileName, Data
22 from allmydata import magicfolderdb, magicpath
25 IN_EXCL_UNLINK = 0x04000000L
27 def get_inotify_module():
29 if sys.platform == "win32":
30 from allmydata.windows import inotify
31 elif runtime.platform.supportsINotify():
32 from twisted.internet import inotify
34 raise NotImplementedError("filesystem notification needed for Magic Folder is not supported.\n"
35 "This currently requires Linux or Windows.")
37 except (ImportError, AttributeError) as e:
39 if sys.platform == "win32":
40 raise NotImplementedError("filesystem notification needed for Magic Folder is not supported.\n"
41 "Windows support requires at least Vista, and has only been tested on Windows 7.")
45 class MagicFolder(service.MultiService):
48 def __init__(self, client, upload_dircap, collective_dircap, local_path_u, dbfile,
49 pending_delay=1.0, clock=reactor):
50 precondition_abspath(local_path_u)
52 service.MultiService.__init__(self)
54 db = magicfolderdb.get_magicfolderdb(dbfile, create_version=(magicfolderdb.SCHEMA_v1, 1))
56 return Failure(Exception('ERROR: Unable to load magic folder db.'))
62 upload_dirnode = self._client.create_node_from_uri(upload_dircap)
63 collective_dirnode = self._client.create_node_from_uri(collective_dircap)
65 self.uploader = Uploader(client, local_path_u, db, upload_dirnode, pending_delay, clock)
66 self.downloader = Downloader(client, local_path_u, db, collective_dirnode, upload_dirnode.get_readonly_uri(), clock)
68 def startService(self):
69 # TODO: why is this being called more than once?
71 return defer.succeed(None)
72 print "%r.startService" % (self,)
73 service.MultiService.startService(self)
74 return self.uploader.start_monitoring()
77 """ready is used to signal us to start
78 processing the upload and download items...
80 d = self.uploader.start_scanning()
81 d2 = self.downloader.start_scanning()
82 d.addCallback(lambda ign: d2)
87 d = self.uploader.stop()
88 d2 = self.downloader.stop()
89 d.addCallback(lambda ign: d2)
92 def remove_service(self):
93 return service.MultiService.disownServiceParent(self)
96 class QueueMixin(HookMixin):
97 def __init__(self, client, local_path_u, db, name, clock):
99 self._local_path_u = local_path_u
100 self._local_filepath = to_filepath(local_path_u)
104 self._hooks = {'processed': None, 'started': None}
105 self.started_d = self.set_hook('started')
107 if not self._local_filepath.exists():
108 raise AssertionError("The '[magic_folder] local.directory' parameter was %s "
109 "but there is no directory at that location."
110 % quote_local_unicode_path(self._local_path_u))
111 if not self._local_filepath.isdir():
112 raise AssertionError("The '[magic_folder] local.directory' parameter was %s "
113 "but the thing at that location is not a directory."
114 % quote_local_unicode_path(self._local_path_u))
116 self._deque = deque()
117 self._lazy_tail = defer.succeed(None)
118 self._stopped = False
121 def _get_filepath(self, relpath_u):
122 self._log("_get_filepath(%r)" % (relpath_u,))
123 return extend_filepath(self._local_filepath, relpath_u.split(u"/"))
125 def _get_relpath(self, filepath):
126 self._log("_get_relpath(%r)" % (filepath,))
127 segments = unicode_segments_from(filepath, self._local_filepath)
128 self._log("segments = %r" % (segments,))
129 return u"/".join(segments)
131 def _count(self, counter_name, delta=1):
132 ctr = 'magic_folder.%s.%s' % (self._name, counter_name)
133 self._log("%s += %r" % (counter_name, delta))
134 self._client.stats_provider.count(ctr, delta)
136 def _logcb(self, res, msg):
137 self._log("%s: %r" % (msg, res))
141 s = "Magic Folder %s %s: %s" % (quote_output(self._client.nickname), self._name, msg)
144 #open("events", "ab+").write(msg)
146 def _turn_deque(self):
147 self._log("_turn_deque")
152 item = self._deque.pop()
153 self._log("popped %r" % (item,))
154 self._count('objects_queued', -1)
156 self._log("deque is now empty")
157 self._lazy_tail.addCallback(lambda ign: self._when_queue_is_empty())
159 self._lazy_tail.addCallback(lambda ign: self._process(item))
160 self._lazy_tail.addBoth(self._call_hook, 'processed')
161 self._lazy_tail.addErrback(log.err)
162 self._lazy_tail.addCallback(lambda ign: task.deferLater(self._clock, self._turn_delay, self._turn_deque))
165 class Uploader(QueueMixin):
166 def __init__(self, client, local_path_u, db, upload_dirnode, pending_delay, clock):
167 QueueMixin.__init__(self, client, local_path_u, db, 'uploader', clock)
169 self.is_ready = False
171 if not IDirectoryNode.providedBy(upload_dirnode):
172 raise AssertionError("The URI in '%s' does not refer to a directory."
173 % os.path.join('private', 'magic_folder_dircap'))
174 if upload_dirnode.is_unknown() or upload_dirnode.is_readonly():
175 raise AssertionError("The URI in '%s' is not a writecap to a directory."
176 % os.path.join('private', 'magic_folder_dircap'))
178 self._upload_dirnode = upload_dirnode
179 self._inotify = get_inotify_module()
180 self._notifier = self._inotify.INotify()
181 self._pending = set()
183 if hasattr(self._notifier, 'set_pending_delay'):
184 self._notifier.set_pending_delay(pending_delay)
186 # TODO: what about IN_MOVE_SELF and IN_UNMOUNT?
188 self.mask = ( self._inotify.IN_CREATE
189 | self._inotify.IN_CLOSE_WRITE
190 | self._inotify.IN_MOVED_TO
191 | self._inotify.IN_MOVED_FROM
192 | self._inotify.IN_DELETE
193 | self._inotify.IN_ONLYDIR
196 self._notifier.watch(self._local_filepath, mask=self.mask, callbacks=[self._notify],
199 def start_monitoring(self):
200 self._log("start_monitoring")
201 d = defer.succeed(None)
202 d.addCallback(lambda ign: self._notifier.startReading())
203 d.addCallback(lambda ign: self._count('dirs_monitored'))
204 d.addBoth(self._call_hook, 'started')
209 self._notifier.stopReading()
210 self._count('dirs_monitored', -1)
211 if hasattr(self._notifier, 'wait_until_stopped'):
212 d = self._notifier.wait_until_stopped()
214 d = defer.succeed(None)
215 d.addCallback(lambda ign: self._lazy_tail)
218 def start_scanning(self):
219 self._log("start_scanning")
221 self._pending = self._db.get_all_relpaths()
222 self._log("all_files %r" % (self._pending))
224 def _add_pending(ign):
225 # This adds all of the files that were in the db but not already processed
226 # (normally because they have been deleted on disk).
227 self._log("adding %r" % (self._pending))
228 self._deque.extend(self._pending)
229 d.addCallback(_add_pending)
230 d.addCallback(lambda ign: self._turn_deque())
233 def _scan(self, reldir_u):
234 self._log("scan %r" % (reldir_u,))
235 fp = self._get_filepath(reldir_u)
237 children = listdir_filepath(fp)
238 except EnvironmentError:
239 raise Exception("WARNING: magic folder: permission denied on directory %s"
240 % quote_filepath(fp))
241 except FilenameEncodingError:
242 raise Exception("WARNING: magic folder: could not list directory %s due to a filename encoding error"
243 % quote_filepath(fp))
245 d = defer.succeed(None)
246 for child in children:
247 _assert(isinstance(child, unicode), child=child)
248 d.addCallback(lambda ign, child=child:
249 ("%s/%s" % (reldir_u, child) if reldir_u else child))
250 def _add_pending(relpath_u):
251 if magicpath.should_ignore_file(relpath_u):
254 self._pending.add(relpath_u)
256 d.addCallback(_add_pending)
257 # This call to _process doesn't go through the deque, and probably should.
258 d.addCallback(self._process)
259 d.addBoth(self._call_hook, 'processed')
260 d.addErrback(log.err)
264 def _notify(self, opaque, path, events_mask):
265 self._log("inotify event %r, %r, %r\n" % (opaque, path, ', '.join(self._inotify.humanReadableMask(events_mask))))
266 relpath_u = self._get_relpath(path)
268 # We filter out IN_CREATE events not associated with a directory.
269 # Acting on IN_CREATE for files could cause us to read and upload
270 # a possibly-incomplete file before the application has closed it.
271 # There should always be an IN_CLOSE_WRITE after an IN_CREATE, I think.
272 # It isn't possible to avoid watching for IN_CREATE at all, because
273 # it is the only event notified for a directory creation.
275 if ((events_mask & self._inotify.IN_CREATE) != 0 and
276 (events_mask & self._inotify.IN_ISDIR) == 0):
277 self._log("ignoring event for %r (creation of non-directory)\n" % (relpath_u,))
279 if relpath_u in self._pending:
280 self._log("ignoring event for %r (already pending)" % (relpath_u,))
282 if magicpath.should_ignore_file(relpath_u):
283 self._log("ignoring event for %r (ignorable path)" % (relpath_u,))
286 self._log("appending %r to deque" % (relpath_u,))
287 self._deque.append(relpath_u)
288 self._pending.add(relpath_u)
289 self._count('objects_queued')
291 self._clock.callLater(0, self._turn_deque)
293 def _when_queue_is_empty(self):
294 return defer.succeed(None)
296 def _process(self, relpath_u):
298 self._log("_process(%r)" % (relpath_u,))
299 if relpath_u is None:
301 precondition(isinstance(relpath_u, unicode), relpath_u)
302 precondition(not relpath_u.endswith(u'/'), relpath_u)
304 d = defer.succeed(None)
306 def _maybe_upload(val, now=None):
309 fp = self._get_filepath(relpath_u)
310 pathinfo = get_pathinfo(unicode_from_filepath(fp))
312 self._log("about to remove %r from pending set %r" %
313 (relpath_u, self._pending))
314 self._pending.remove(relpath_u)
315 encoded_path_u = magicpath.path2magic(relpath_u)
317 if not pathinfo.exists:
318 # FIXME merge this with the 'isfile' case.
319 self._log("notified object %s disappeared (this is normal)" % quote_filepath(fp))
320 self._count('objects_disappeared')
321 if not self._db.check_file_db_exists(relpath_u):
324 last_downloaded_timestamp = now
325 last_downloaded_uri = self._db.get_last_downloaded_uri(relpath_u)
327 current_version = self._db.get_local_file_version(relpath_u)
328 if current_version is None:
330 elif self._db.is_new_file(pathinfo, relpath_u):
331 new_version = current_version + 1
333 self._log("Not uploading %r" % (relpath_u,))
334 self._count('objects_not_uploaded')
337 metadata = { 'version': new_version,
339 'last_downloaded_timestamp': last_downloaded_timestamp }
340 if last_downloaded_uri is not None:
341 metadata['last_downloaded_uri'] = last_downloaded_uri
343 empty_uploadable = Data("", self._client.convergence)
344 d2 = self._upload_dirnode.add_file(encoded_path_u, empty_uploadable,
345 metadata=metadata, overwrite=True)
347 def _add_db_entry(filenode):
348 filecap = filenode.get_uri()
349 self._db.did_upload_version(relpath_u, new_version, filecap,
350 last_downloaded_uri, last_downloaded_timestamp, pathinfo)
351 self._count('files_uploaded')
352 d2.addCallback(_add_db_entry)
354 elif pathinfo.islink:
355 self.warn("WARNING: cannot upload symlink %s" % quote_filepath(fp))
358 if not getattr(self._notifier, 'recursive_includes_new_subdirectories', False):
359 self._notifier.watch(fp, mask=self.mask, callbacks=[self._notify], recursive=True)
361 uploadable = Data("", self._client.convergence)
362 encoded_path_u += magicpath.path2magic(u"/")
363 self._log("encoded_path_u = %r" % (encoded_path_u,))
364 upload_d = self._upload_dirnode.add_file(encoded_path_u, uploadable, metadata={"version":0}, overwrite=True)
366 self._log("created subdirectory %r" % (relpath_u,))
367 self._count('directories_created')
369 self._log("failed to create subdirectory %r" % (relpath_u,))
371 upload_d.addCallbacks(_succeeded, _failed)
372 upload_d.addCallback(lambda ign: self._scan(relpath_u))
374 elif pathinfo.isfile:
375 last_downloaded_uri = self._db.get_last_downloaded_uri(relpath_u)
376 last_downloaded_timestamp = now
378 current_version = self._db.get_local_file_version(relpath_u)
379 if current_version is None:
381 elif self._db.is_new_file(pathinfo, relpath_u):
382 new_version = current_version + 1
384 self._log("Not uploading %r" % (relpath_u,))
385 self._count('objects_not_uploaded')
388 metadata = { 'version': new_version,
389 'last_downloaded_timestamp': last_downloaded_timestamp }
390 if last_downloaded_uri is not None:
391 metadata['last_downloaded_uri'] = last_downloaded_uri
393 uploadable = FileName(unicode_from_filepath(fp), self._client.convergence)
394 d2 = self._upload_dirnode.add_file(encoded_path_u, uploadable,
395 metadata=metadata, overwrite=True)
397 def _add_db_entry(filenode):
398 filecap = filenode.get_uri()
399 last_downloaded_uri = metadata.get('last_downloaded_uri', None)
400 self._db.did_upload_version(relpath_u, new_version, filecap,
401 last_downloaded_uri, last_downloaded_timestamp, pathinfo)
402 self._count('files_uploaded')
403 d2.addCallback(_add_db_entry)
406 self.warn("WARNING: cannot process special file %s" % quote_filepath(fp))
409 d.addCallback(_maybe_upload)
412 self._count('objects_succeeded')
415 self._count('objects_failed')
416 self._log("%s while processing %r" % (f, relpath_u))
418 d.addCallbacks(_succeeded, _failed)
421 def _get_metadata(self, encoded_path_u):
423 d = self._upload_dirnode.get_metadata_for(encoded_path_u)
428 def _get_filenode(self, encoded_path_u):
430 d = self._upload_dirnode.get(encoded_path_u)
436 class WriteFileMixin(object):
439 def _get_conflicted_filename(self, abspath_u):
440 return abspath_u + u".conflict"
442 def _write_downloaded_file(self, abspath_u, file_contents, is_conflict=False, now=None):
443 self._log("_write_downloaded_file(%r, <%d bytes>, is_conflict=%r, now=%r)"
444 % (abspath_u, len(file_contents), is_conflict, now))
446 # 1. Write a temporary file, say .foo.tmp.
447 # 2. is_conflict determines whether this is an overwrite or a conflict.
448 # 3. Set the mtime of the replacement file to be T seconds before the
449 # current local time.
450 # 4. Perform a file replacement with backup filename foo.backup,
451 # replaced file foo, and replacement file .foo.tmp. If any step of
452 # this operation fails, reclassify as a conflict and stop.
454 # Returns the path of the destination file.
456 precondition_abspath(abspath_u)
457 replacement_path_u = abspath_u + u".tmp" # FIXME more unique
458 backup_path_u = abspath_u + u".backup"
462 # ensure parent directory exists
463 head, tail = os.path.split(abspath_u)
465 fileutil.make_dirs(head, mode)
467 fileutil.write(replacement_path_u, file_contents)
468 os.utime(replacement_path_u, (now, now - self.FUDGE_SECONDS))
470 print "0x00 ------------ <><> is conflict; calling _rename_conflicted_file... %r %r" % (abspath_u, replacement_path_u)
471 return self._rename_conflicted_file(abspath_u, replacement_path_u)
474 fileutil.replace_file(abspath_u, replacement_path_u, backup_path_u)
476 except fileutil.ConflictError:
477 return self._rename_conflicted_file(abspath_u, replacement_path_u)
479 def _rename_conflicted_file(self, abspath_u, replacement_path_u):
480 self._log("_rename_conflicted_file(%r, %r)" % (abspath_u, replacement_path_u))
482 conflict_path_u = self._get_conflicted_filename(abspath_u)
483 print "XXX rename %r %r" % (replacement_path_u, conflict_path_u)
484 if os.path.isfile(replacement_path_u):
485 print "%r exists" % (replacement_path_u,)
486 if os.path.isfile(conflict_path_u):
487 print "%r exists" % (conflict_path_u,)
489 fileutil.rename_no_overwrite(replacement_path_u, conflict_path_u)
490 return conflict_path_u
492 def _rename_deleted_file(self, abspath_u):
493 self._log('renaming deleted file to backup: %s' % (abspath_u,))
495 fileutil.rename_no_overwrite(abspath_u, abspath_u + u'.backup')
497 # XXX is this the correct error?
498 self._log("Already gone: '%s'" % (abspath_u,))
502 class Downloader(QueueMixin, WriteFileMixin):
503 REMOTE_SCAN_INTERVAL = 3 # facilitates tests
505 def __init__(self, client, local_path_u, db, collective_dirnode, upload_readonly_dircap, clock):
506 QueueMixin.__init__(self, client, local_path_u, db, 'downloader', clock)
508 if not IDirectoryNode.providedBy(collective_dirnode):
509 raise AssertionError("The URI in '%s' does not refer to a directory."
510 % os.path.join('private', 'collective_dircap'))
511 if collective_dirnode.is_unknown() or not collective_dirnode.is_readonly():
512 raise AssertionError("The URI in '%s' is not a readonly cap to a directory."
513 % os.path.join('private', 'collective_dircap'))
515 self._collective_dirnode = collective_dirnode
516 self._upload_readonly_dircap = upload_readonly_dircap
518 self._turn_delay = self.REMOTE_SCAN_INTERVAL
520 def start_scanning(self):
521 self._log("start_scanning")
522 files = self._db.get_all_relpaths()
523 self._log("all files %s" % files)
525 d = self._scan_remote_collective()
526 d.addBoth(self._logcb, "after _scan_remote_collective 0")
532 d = defer.succeed(None)
533 d.addCallback(lambda ign: self._lazy_tail)
536 def _should_download(self, relpath_u, remote_version):
538 _should_download returns a bool indicating whether or not a remote object should be downloaded.
539 We check the remote metadata version against our magic-folder db version number;
542 self._log("_should_download(%r, %r)" % (relpath_u, remote_version))
543 if magicpath.should_ignore_file(relpath_u):
547 v = self._db.get_local_file_version(relpath_u)
548 self._log("v = %r" % (v,))
549 return (v is None or v < remote_version)
551 def _get_local_latest(self, relpath_u):
553 _get_local_latest takes a unicode path string checks to see if this file object
554 exists in our magic-folder db; if not then return None
555 else check for an entry in our magic-folder db and return the version number.
557 if not self._get_filepath(relpath_u).exists():
559 return self._db.get_local_file_version(relpath_u)
561 def _get_collective_latest_file(self, filename):
563 _get_collective_latest_file takes a file path pointing to a file managed by
564 magic-folder and returns a deferred that fires with the two tuple containing a
565 file node and metadata for the latest version of the file located in the
566 magic-folder collective directory.
568 collective_dirmap_d = self._collective_dirnode.list()
569 def scan_collective(result):
570 list_of_deferreds = []
571 for dir_name in result.keys():
572 # XXX make sure it's a directory
573 d = defer.succeed(None)
574 d.addCallback(lambda x, dir_name=dir_name: result[dir_name][0].get_child_and_metadata(filename))
575 list_of_deferreds.append(d)
576 deferList = defer.DeferredList(list_of_deferreds, consumeErrors=True)
578 collective_dirmap_d.addCallback(scan_collective)
579 def highest_version(deferredList):
583 for success, result in deferredList:
585 if result[1]['version'] > max_version:
586 node, metadata = result
587 max_version = result[1]['version']
588 return node, metadata
589 collective_dirmap_d.addCallback(highest_version)
590 return collective_dirmap_d
592 def _scan_remote_dmd(self, nickname, dirnode, scan_batch):
593 self._log("_scan_remote_dmd nickname %r" % (nickname,))
595 def scan_listing(listing_map):
596 for encoded_relpath_u in listing_map.keys():
597 relpath_u = magicpath.magic2path(encoded_relpath_u)
598 self._log("found %r" % (relpath_u,))
600 file_node, metadata = listing_map[encoded_relpath_u]
601 local_version = self._get_local_latest(relpath_u)
602 remote_version = metadata.get('version', None)
603 self._log("%r has local version %r, remote version %r" % (relpath_u, local_version, remote_version))
605 if local_version is None or remote_version is None or local_version < remote_version:
606 self._log("%r added to download queue" % (relpath_u,))
607 if scan_batch.has_key(relpath_u):
608 scan_batch[relpath_u] += [(file_node, metadata)]
610 scan_batch[relpath_u] = [(file_node, metadata)]
612 d.addCallback(scan_listing)
613 d.addBoth(self._logcb, "end of _scan_remote_dmd")
616 def _scan_remote_collective(self):
617 self._log("_scan_remote_collective")
618 scan_batch = {} # path -> [(filenode, metadata)]
620 d = self._collective_dirnode.list()
621 def scan_collective(dirmap):
622 d2 = defer.succeed(None)
623 for dir_name in dirmap:
624 (dirnode, metadata) = dirmap[dir_name]
625 if dirnode.get_readonly_uri() != self._upload_readonly_dircap:
626 d2.addCallback(lambda ign, dir_name=dir_name:
627 self._scan_remote_dmd(dir_name, dirnode, scan_batch))
629 self._log("failed to scan DMD for client %r: %s" % (dir_name, f))
630 # XXX what should we do to make this failure more visible to users?
634 d.addCallback(scan_collective)
636 def _filter_batch_to_deque(ign):
637 self._log("deque = %r, scan_batch = %r" % (self._deque, scan_batch))
638 for relpath_u in scan_batch.keys():
639 file_node, metadata = max(scan_batch[relpath_u], key=lambda x: x[1]['version'])
641 if self._should_download(relpath_u, metadata['version']):
642 self._deque.append( (relpath_u, file_node, metadata) )
644 self._log("Excluding %r" % (relpath_u,))
645 self._count('objects_excluded')
646 self._call_hook(None, 'processed')
648 self._log("deque after = %r" % (self._deque,))
649 d.addCallback(_filter_batch_to_deque)
652 def _when_queue_is_empty(self):
653 d = task.deferLater(self._clock, self._turn_delay, self._scan_remote_collective)
654 d.addBoth(self._logcb, "after _scan_remote_collective 1")
655 d.addCallback(lambda ign: self._turn_deque())
658 def _process(self, item, now=None):
660 self._log("_process(%r)" % (item,))
663 (relpath_u, file_node, metadata) = item
664 fp = self._get_filepath(relpath_u)
665 abspath_u = unicode_from_filepath(fp)
666 conflict_path_u = self._get_conflicted_filename(abspath_u)
668 d = defer.succeed(None)
670 def do_update_db(written_abspath_u):
671 filecap = file_node.get_uri()
672 last_uploaded_uri = metadata.get('last_uploaded_uri', None)
673 last_downloaded_uri = filecap
674 last_downloaded_timestamp = now
675 written_pathinfo = get_pathinfo(written_abspath_u)
677 if not written_pathinfo.exists and not metadata.get('deleted', False):
678 raise Exception("downloaded object %s disappeared" % quote_local_unicode_path(written_abspath_u))
680 self._db.did_upload_version(relpath_u, metadata['version'], last_uploaded_uri,
681 last_downloaded_uri, last_downloaded_timestamp, written_pathinfo)
682 self._count('objects_downloaded')
684 self._log("download failed: %s" % (str(f),))
685 self._count('objects_failed')
688 if os.path.isfile(conflict_path_u):
690 raise ConflictError("download failed: already conflicted: %r" % (relpath_u,))
694 if self._db.check_file_db_exists(relpath_u):
695 dmd_last_downloaded_uri = metadata.get('last_downloaded_uri', None)
696 local_last_downloaded_uri = self._db.get_last_downloaded_uri(relpath_u)
697 print "metadata %r" % (metadata,)
698 print "<<<<--- if %r != %r" % (dmd_last_downloaded_uri, local_last_downloaded_uri)
699 if dmd_last_downloaded_uri is not None and local_last_downloaded_uri is not None:
700 if dmd_last_downloaded_uri != local_last_downloaded_uri:
702 self._count('objects_conflicted')
704 #dmd_last_uploaded_uri = metadata.get('last_uploaded_uri', None)
705 #local_last_uploaded_uri = ...
707 if relpath_u.endswith(u"/"):
708 if metadata.get('deleted', False):
709 self._log("rmdir(%r) ignored" % (abspath_u,))
711 self._log("mkdir(%r)" % (abspath_u,))
712 d.addCallback(lambda ign: fileutil.make_dirs(abspath_u))
713 d.addCallback(lambda ign: abspath_u)
715 if metadata.get('deleted', False):
716 d.addCallback(lambda ign: self._rename_deleted_file(abspath_u))
718 d.addCallback(lambda ign: file_node.download_best_version())
719 d.addCallback(lambda contents: self._write_downloaded_file(abspath_u, contents,
720 is_conflict=is_conflict))
722 d.addCallbacks(do_update_db, failed)
724 def trap_conflicts(f):
725 f.trap(ConflictError)
727 d.addErrback(trap_conflicts)