By default QNetworkReply::errorString() often produces messages like
"Error downloading <url> - server replied: <reason>"
but the "downloading" part invariably confuses people since the
error might very well have been produced by a PUT request.
This commit produces clearer error messages for HTTP errors.
Additionally:
* Remove some unnecessary null checks from slots connected to
network job signals and document that these signals never send
null replies.
* There was a bug where AbstractNetworkJob::_timedout wasn't
set when derived classes overrode slotTimeout. We now ensure
it's always set by disallowing overrides of slotTimeout.
Instead it now calls onTimedOut, which allows custom handling.
* Several subclasses declared errorString, isTimedOut. Move
these to AbstractNetworkJob.
* Unify handling of OC-ErrorString (via the new, general
Job::errorString)
* Add documentation in various places.
Backtrace looks like this:
Crash: EXCEPTION_ACCESS_VIOLATION_READ at 0x0
File "propagatedownload.cpp", line 234, in OCC::GETFileJob::slotReadyRead
File "moc_propagatedownl_CA5CFSHZDTX34X.cpp", line 86, in OCC::GETFileJob::qt_static_metacall
File "qobject.cpp", line 495, in QMetaCallEvent::placeMetaCall
File "qobject.cpp", line 1256, in QObject::event
File "qapplication.cpp", line 3804, in QApplicationPrivate::notify_helper
GETFileJob::slotReadyRead can be called with a QueuedConnection when the
bendwith manager is involved. In that case, if the QNAM was reset
in between, the reply might have been destroyed.
(This is only speculation based on the backtrace)
* For requests:
- reuse the original QNetworkRequest, so headers and attributes
are the same as in the original request
- determine the original http method from the reply and the request
attributes
- keep the original request body around such that it can be sent
again in case the request is redirected
* Simplify the interface that is used for creating new requests in
AbstractNetworkJob.
Avoid using connections to report up the job tree for signals
that we can directly communicate to the OwncloudPropagator.
This slightly reduces the memory usage and avoid passing those calls
through the whole parent chain.
This could make sure that the network job gets deleted if the parent job gets
deleted, and would avoid crashes like:
Crash: EXCEPTION_ACCESS_VIOLATION_READ at 0xffffffff8b008a04
File "qiodevice.cpp", line 1617, in QIODevice::errorString
File "propagatedownload.cpp", line 264, in OCC::GETFileJob::slotReadyRead
File "moc_propagatedownload.cpp", line 85, in OCC::GETFileJob::qt_static_metacall
File "qobject.cpp", line 3716, in QMetaObject::activate
File "moc_qiodevice.cpp", line 154, in QIODevice::readyRead
File "qnetworkreplyhttpimpl.cpp", line 1045, in QNetworkReplyHttpImplPrivate::replyDownloadData
(#5329)
- Replace functions that are provided by MinGW with a Win32-based
implementation
- Explicitly export needed symbols from ocsync.dll
- Rename share.h to sharemanager.h since the name clashes with one
of the Windows headers and get included from there
- Remove the timestamp from the fallback csync stderr logging, it's
not used since we always provide a log callback
This is a move away from the original policy where jobs
would only follow redirects in special cases.
Two restrictions are in place:
1. We do not allow protocol downgrades (https -> http)
2. We stop redirects after we find them looping (e.g. old = new url, or
indirectly when looping 10 times).
This is closer to RFC conforming behavior, although currently
we will treat 301 replies like they were 302. This is for a separate
commit.
Error handling (and display) also needs improvement.
Addresses #2791
When a conflict-rename or a temporary-rename fails, notify the
LockWatcher. It'll regularly check whether the file has become
accesible again. When it has, another sync is triggered.
owncloud/enterprise#1288
If the downloaded file is empty but the PROPFIND previously announced it
should not have been empty, this might mean the file was somehow corrupted
because of a bug on the server and that we should therefore not accept
the file.
Normaly we accept a change between the actual size of the file and what we
got during discovery because the file might have been updated to a new version
inbetween. But after this patch we won't accept the file if it was replaced
by an empty file.
Will help for issue #4583
Also requested by IL for issue 548
Added in previous commit from pull request #4663
As discussed, we do not need this option so no need to introduce
a new dependency on the config file in the sync engine
* Add checksums/supportedTypes and checksums/preferredUploadType
capabilities. The default is that no checksum types are supported.
* Remove the transmissionChecksum config option. Servers must now
use the capabilities to indicate that they are fine with the
client sending checksums.
Note: This intentionally breaks brandings that overrode
Theme::transmissionChecksum. The override must be removed and the
server's capabilities must be adjusted to include the new values.
Helps with small file sync #331
When I benchmarked this, it went up to 6 parallelism and
was about 1/3 faster than the previous fixed 3 parallelism.
Doing more than 6 is dangerous because QNAM limits to 6 TCP
connections and also the server might become a bottleneck.
Should also help for #4081
* Ensure every time a file becomes a directory or the other way around
the item is flagged as INSTRUCTION_TYPE_CHANGE.
* Delete the badly-typed entity if necessary in the propagation jobs.
* Compute the content checksum (in addition to the optional
transmission checksum) during upload (.eml files only)
* Add hook to compute and compare the checksum in csync_update
* Add content checksum to database, remove transmission checksum
