The problem here is that we were sometimes allocating the error_string with
qstrdup, which need to be released with delete[] and not free().
Simplify the code by using QString instead.
```
==7230== Mismatched free() / delete / delete []
==7230== at 0x4C2E10B: free (vg_replace_malloc.c:530)
==7230== by 0x57C2321: csync_s::reinitialize() (csync.cpp:247)
==7230== by 0x548130F: OCC::SyncEngine::finalize(bool) (syncengine.cpp:1212)
==7230== by 0x5481223: OCC::SyncEngine::handleSyncError(csync_s*, char const*) (syncengine.cpp:746)
==7230== by 0x5483E78: OCC::SyncEngine::slotDiscoveryJobFinished(int) (syncengine.cpp:965)
==7230== by 0x5495E34: QtPrivate::FunctorCall<QtPrivate::IndexesList<0>, QtPrivate::List<int>, void, void (OCC::SyncEngine::*)(int)>::call(void (OCC::SyncEngine::*)(int), OCC::SyncEngine*, void**) (qobjectdefs_impl.h:134)
==7230== by 0x5495D92: void QtPrivate::FunctionPointer<void (OCC::SyncEngine::*)(int)>::call<QtPrivate::List<int>, void>(void (OCC::SyncEngine::*)(int), OCC::SyncEngine*, void**) (qobjectdefs_impl.h:167)
==7230== by 0x5495CB5: QtPrivate::QSlotObject<void (OCC::SyncEngine::*)(int), QtPrivate::List<int>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (qobjectdefs_impl.h:396)
==7230== by 0xA9BF2E1: QObject::event(QEvent*) (in /usr/lib/libQt5Core.so.5.11.0)
==7230== by 0x64BE983: QApplicationPrivate::notify_helper(QObject*, QEvent*) (in /usr/lib/libQt5Widgets.so.5.11.0)
==7230== by 0x64C625A: QApplication::notify(QObject*, QEvent*) (in /usr/lib/libQt5Widgets.so.5.11.0)
==7230== by 0xA994BC8: QCoreApplication::notifyInternal2(QObject*, QEvent*) (in /usr/lib/libQt5Core.so.5.11.0)
==7230== Address 0x225b2640 is 0 bytes inside a block of size 50 alloc'd
==7230== at 0x4C2DC6F: operator new[](unsigned long) (vg_replace_malloc.c:423)
==7230== by 0xA7E8FC8: qstrdup(char const*) (in /usr/lib/libQt5Core.so.5.11.0)
==7230== by 0x53F5750: OCC::DiscoveryJob::remote_vio_opendir_hook(char const*, void*) (discoveryphase.cpp:666)
==7230== by 0x57E1278: csync_vio_opendir(csync_s*, char const*) (csync_vio.cpp:39)
==7230== by 0x57D718F: csync_ftw(csync_s*, char const*, int (*)(csync_s*, std::unique_ptr<csync_file_stat_s, std::default_delete<csync_file_stat_s> >), unsigned int) (csync_update.cpp:674)
==7230== by 0x57C1B05: csync_update(csync_s*) (csync.cpp:109)
==7230== by 0x53F5BCC: OCC::DiscoveryJob::start() (discoveryphase.cpp:718)
==7230== by 0x54B8F74: OCC::DiscoveryJob::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) (moc_discoveryphase.cpp:494)
==7230== by 0xA9BF2E1: QObject::event(QEvent*) (in /usr/lib/libQt5Core.so.5.11.0)
==7230== by 0x64BE983: QApplicationPrivate::notify_helper(QObject*, QEvent*) (in /usr/lib/libQt5Widgets.so.5.11.0)
==7230== by 0x64C625A: QApplication::notify(QObject*, QEvent*) (in /usr/lib/libQt5Widgets.so.5.11.0)
==7230== by 0xA994BC8: QCoreApplication::notifyInternal2(QObject*, QEvent*) (in /usr/lib/libQt5Core.so.5.11.0)
==7230==
```
Now the db entries for placeholders will have the full placeholder
paths. That way older clients will, on remote discovery, delete the
placeholders and download the real files.
- Controled by an option.
- New remote files start out as ItemTypePlaceholder, are created with a
.owncloud extension.
- When their db entry is set to ItemTypePlaceholderDownload the next
sync run will download them.
- Files that aren't in the placeholder state sync as usual.
- See test cases in testsyncplaceholders.
Missing:
- User ui for triggering placeholder file download
- Maybe: Going back from file to placeholder?
Since commit 4dc49ff3, we store an entry in the upload info table even
for non chunked uploads. However, if this fails we don't want to remove
non-existant stale chunks if the upload fails.
Without this commit, we would send a DELETE command to clean non-existant
chunks in the dav/uploads/ namespace.
Everything is invalidated later: after discovery, not before. In
addition entries that should only be invalidated when new local
discovery is done have that behavior now.
Before, we only cleared the _avoidReadFromDbOnNextSyncFilter *after* a
sync which meant that we had to sync twice after selective sync setup.
Now, we clear the filter *before* a sync as well which allows the actual
next sync to write the correct etags to the db again - instead of only
the sync after that one.
Also expand on comments and rename _avoidReadFromDbOnNextSyncFilter to
_etagStorageFilter.
Previously conflicts with a different type on both ends lead to sync
errors. Now they are handled in the expected way: the local item gets
renamed and the remote item gets propagated downwards.
This also adds a unittest for the TYPE_CHANGE case. That one looks like
parts of it might be unified with CONFLICT cases.
This commit adds client-side support for delta-sync, this adds a new
3rdparty submodule `gh:ahmedammar/zsync`. This zsync tree is a modified
version of upstream, adding some needed support for the upload path and
other requirements.
If the server does not announce the required zsync capability then a
full upload/download is fallen back to. Delta synchronization can be
enabled/disabled using command line, config, or gui options.
On both upload and download paths, a check is made for the existance of
a zsync metadata file on the server for a given path. This is provided
by a dav property called `zsync`, found during discovery phase. If it
doesn't exist the code reverts back to a complete upload or download,
i.e. previous implementations. In the case of upload, a new zsync
metadata file will be uploaded as part of the chunked upload and future
synchronizations will be delta-sync capable.
Chunked uploads no longer use sequential file names for each chunk id,
instead, they are named as the byte offset into the remote file, this is
a minimally intrusive modification to allow fo delta-sync and legacy
code paths to run seamlessly. A new http header OC-Total-File-Length is
sent, which informs the server of the final expected size of the file
not just the total transmitted bytes as reported by OC-Total-Length.
The seeding and generation of the zsync metadata file is done in a
separate thread since this is a cpu intensive task, ensuring main thread
is not blocked.
This commit closesowncloud/client#179.
If the server has the 'uploadConflictFiles' capability conflict
files will be uploaded instead of ignored.
Uploaded conflict files have the following headers set during upload
OC-Conflict: 1
OC-ConflictBaseFileId: 172489174instanceid
OC-ConflictBaseMtime: 1235789213
OC-ConflictBaseEtag: myetag
when the data is available. Downloads accept the same headers in return
when downloading a conflict file.
In the absence of server support clients will identify conflict files
through the file name pattern and attempt to deduce the base fileid.
Base etag and mtime can't be deduced though.
The upload job for a new conflict file will be triggered directly from
the job that created the conflict file now. No second sync run is
necessary anymore.
This commit does not yet introduce a 'username' like identifier that
automatically gets added to conflict file filenames (to name the files
foo_conflict-Fred-1345.txt instead of just foo_conflict-1345.txt).
Previously, there was csync_ftw_type_e and SyncFileItem::Type. Having
two enums lead to a bug where Type::Unknown == Type::File that went
unnoticed for a good while.
This patch keeps only a single enum.
Make ExcludedFiles something that is instantiated outside of
the CSYNC context and then given to it as a hook.
ExcludedFiles still lives in csync_exclude and the internal
workings haven't been touched.
This is mainly for linux, whose local is not UTF-8.
For example, in latin1, it is not possible to encode emoji or chinese character.
If there are such character in the filename, Qt would just save the file using
the replacement character ('?'). Then, on the next sync, client would rename
the files using this replacement character.
Avoid this by ignoring the files which cannot be downloaded because the
filename cannot be represented with the user's locale
Relates to issue #5676 and #5719
... even if the file is not changed.
We get an UPDATE_METADATA in that case, so make sure we let the
SyncFileStatusTracker know about it.
That means we need to filter out UPDATE_METADATA in the other listeners
of this signal.
Issue #6098
We mostly trust the file watchers meaning that we don't re-scan the
local tree if we have done that recently and no file watcher events
have arrived. If the file watchers invalidate a subtree, we rescan
only that subtree.
Since we're not entirely sure the file watchers are reliable, we still
do full local discoveries regularly (1h by default). There is a config
file setting as well as an environment variable to control the interval.
This gets rid of the csync_statedb sqlite layer and use
the same code and same connection as the rest of the SyncEngine.
Missing functions are added to SyncJournalDb and change a few minor
things (like changing SyncJournalFileRecord::_modtime to be an int64
instead of a QDateTime, like it was in csync).
The current implementation would return the same value whether the query failed
or if no row would be found. This is something that is currently checked by csync
and needs to be provided if we want to use SyncJournalDB there.
Adjusted all call sites to also check the return value even though they
could still just rely on rec.isValid(), but makes it more explicit as to what
happens for database errors in those cases, if we ever want to gracefully handle
them.
Create a specific type that parses the permissions so we can store
it in a short rather than in a QByteArray
Note: in RemotePermissions::toString, we make sure the string is not
empty by adding a space, this was already existing before commit
e8f7adc7ca where it was removed by mistake.
This is motivated by the fact that QMetaObject::noralizeSignature takes 7.35%
CPU of the LargeSyncBench. (Mostly from ABstractNetworkJob::setupConnections and
PropagateUploadFileV1::startNextChunk). It could be fixed by using normalized
signature in the connection statement, but i tought it was a good oportunity
to modernize the code.
This commit only contains calls that were automatically converted with clazy.
Set OWNCLOUD_UPLOAD_CONFLICT_FILES=1 to trigger this behavior.
Note that this is experimental and unsupported. The real feature is
likely to end up in 2.5.
Uploading conflict files is simply done by removing the pattern from
csync_exclude. The rest here deals with making the conflict notification
ui approximately work.
There are still some concerns about where an uploaded conflict file
appears in the sync protocol and issues list (it should be in both, but
is only in one of them currently!).
See #4557.
This remove the remaining "other" fields of the sync log to save a
bit of memory.
other_etag and other_fileId don't give much information to the users
and other_instruction will always be INST_NONE anyway.
other_modtime and other_size are kept since they are sometimes used.
They were renamed to have a bit more meaningful name.
SyncEngine::checkPermissions will now fetch its information from the
csync trees since they are now preserved until right after this point.
Fixes#3213
Now that csync is using a more convenient data structure for
its file trees, wait a little bit longer before destroying them and
fetch the remote permissions from the remote tree there instead.
Merge csync_create and csync_init into the constructor and
replace csync_destroy with the destructor.
Also use a QByteArray for csync_s::root_perms and flatten
csync_rename_s as a rename sub-struct of csync_s since it
can now handle C++ types.
Just expose csync_file_stat_t since we don't need an abstraction layer
anymore. Also pass the nodes of both trees directly to the visitor
function.
Issue #1817
Also move csync_normalize_etag to common/utility since we
don't need the char* function anymore.
Remove the single space file_stat->remotePerm codepath since
this won't be used in csync anymore since
8de3bda0b1.
Issue #1817
This is the first commit trying to unify csync_file_stat_s,
csync_vio_file_stat_s and csync_tree_walk_file_s. Use QByteArray
and unique_ptr already since I'm not used to track memory allocations
and this will make the transition easier.
Issue #1817
We only want to know if they were touched within the last 15 seconds,
so change the data structure to use a QMultiMap, and sort them by
QElapsedTimer. This allows us to iterate over old entries ordered by
time and to stop once we find a recent entry.
This makes the look-up slower but in most cases the folder watcher
will report any change within milliseconds, and we start from the
most recent. What this really makes slower are actual user file
changes while a fast sync is underways which will need to iterate
over the whole map to find out the file isn't there.
This reduces the growth of the memory usage when downloading a large
amount of files.
We need Qt 5.9 for HTTP2 because, even if Qt 5.8 already has support
for it, there is some critical bug in the HTTP2 implementation which
make it unusable [ https://codereview.qt-project.org/186050 and
https://codereview.qt-project.org/186066 ]
When using HTTP2, we can use many more parallel network request, this
is especially good for small file handling
Lower the priority of the GET and PUT propagation jobs, so the quota
or selective sync ui PROPFIND will not be blocked by them
Since these errors are blacklisted, it can take up to 24h to retry items
that had a 507 error for a while. This way users can intervene and cause
an upload attempt immediately.
It now produces a summary error message indicating the problem.
Adjust blacklist database table to contain 'errorCategory'. This is
useful for two things:
- Reestablishing summary messages based on blacklisted errors. For
example if we don't retry a 507ed file, we still want to show the
message about space on the server
- Selectively wiping the blacklist: When we have ui for something like
"I deleted some files, please retry all files now!", we want to
delete all blacklist entries of a specific category only.
* A bunch of code was determining sync status by ad-hoc comparing some
progress info fields. It can now just check the status, making it
easier to comprehend.
* There's a clear indication for "a new sync is starting", which helps
wiping the issues tab at the right time.
For now we use them for:
* csync errors: This allows them to appear in the sync issues tab
* insufficient local disk space, as a summary of individual file errors
Insufficient remote space will use them too, as might other issues that
are bigger than a single sync item.
Before, blacklisted errors were set to FileIgnored status and hence
displayed as warnings. Now, they have their own BlacklistedError
category which allows them to appear as errors in the issues list and in
the shell integration icons.
* For conflicts where mtime and size are identical:
a) If there's no remote checksum, skip (unchanged)
b) If there's a remote checksum that's a useful hash, create a
PropagateDownload job and compute the local hash. If the hashes
are identical, don't download the file and just update metadata.
* Avoid exposing the existence of checksumTypeId beyond the database
layer. This makes handling checksums easier in general because they
can usually be treated as a single blob.
This change was prompted by the difficulty of producing file_stat_t
entries uniformly from PROPFINDs and the database.
Issue #5783
When the directry that should be removed by selective sync contains changes,
we ignore the whole sub tree instead of only ignoreing new files.
We cannot ignore the whole directory, we need to ignore only the directory
that do not have files to remove
Use qCInfo for anything that has general value for support and
development. Use qCWarning for any recoverable error and qCCritical
for anything that could result in data loss or would identify a serious
issue with the code.
Issue #5647
This gives more insight about the logs and allow setting fine-tuned
logging rules. The categories are set to only output Info by default
so this allows us to provide more concise logging while keeping the
ability to extract more information for a specific category when
developping or debugging customer issues.
Issue #5647
Before this patch, to deep folder would just be ignored, without any feedback.
This patch makes it so deep folder are properly shown as ignored in the UI.
Also increase the MAX_DEPTH
Issue: #1067
* make target duration a client option instead of a capability
* simplify algorithm for determining chunk size significantly
* preserve chunk size for the whole propagation, not just per upload
* move options to SyncOptions to avoid depending on ConfigFile
in the propagator
* move chunk-size adjustment to after a chunk finishes, not when
a new chunk starts
In 8ef11a38c9, we started blacklisting
SoftError for 0 seconds. But if the two sync happen with less than
1s interval, we would still prevent them to happen.
So make sure we expire if 0 seconds have expired
