With new emails we could have negative UIDs in come use cases. Exclude these
from the list of UIDs. The negative UIDs lead to invalid SEARCH command:
SEARCH command error: BAD ['Could not parse command']. Data: FMAO19 SEARCH (UID -4:*)
Github-ref: https://github.com/OfflineIMAP/offlineimap/issues/512
Tested-by: https://github.com/shubhamkrm
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
This behaviour is what users would expected most. The error message is about
utf8foldernames and decodefoldernames.
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
The new 'utf8foldernames' will not work together with the existing
'decodefoldernames' option (which will be documented in the next
commit). Therefore this commit will check for this condition and
abort the synchronization of a misconfigured account before doing
any changes.
Other accounts are not affected.
Signed-off-by: Urs Liska <git@ursliska.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
If utf8foldernames is enabled on account level all folder names read
from the IMAP server will immediately be reencoded to UTF-8. Names
will be treated as UTF-8 as long as the IMAP server isn't contacted again,
for which they are reencoded to IMAP4-UTF-7.
This means that any further processing such as nametrans, folderfilter
etc. will act upon the UTF-8 names, which will have to be documented
carefully.
NOTE 1:
GMail repositories and folders inherit from the IMAP... classes, so I don't
know yet if these changes have ugly side-effects. But web research suggests
that GMail IMAP folders are equally encoded in UTF-7 so that should work
identically here and incorporate the same improvements.
NOTE 2:
I could not test the behaviour with idlefolders as I didn't get this option
to work at all, not even with the latest stable version.
NOTE 3:
I *did* test to sync an IMAP repository against another IMAP repository.
Signed-off-by: Urs Liska <git@ursliska.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
On each folder scan, we must compute the min_uid. Locally, this is done by
relying on the prefix timestamp in the filenames. If for whatever reason they do
not reflect the Date header of the email, changing maxage leads to undefined
behaviour.
To prevent from this, we rather rely on the remote folder. We assume that the
remotes are more reliable to provide correct sets of UIDs based on dates than we
are.
Github-ref: https://github.com/OfflineIMAP/offlineimap/issues/384
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
mbnames is initialized and written once in the run from OfflineImap.__sync().
However, the in-memory instance is fed with data at sync time for each folder
and the intermediate files are written as soon as all the folders are synced for
the account. All of this is done inside the SyncableAccount.__sync() method
while the syncrunner is looping on this.
This means that we duplicate entries for mbnames in each loop (most likely when
autorefresh is enabled).
It is wrong to have duplicates in mbnames for each account. Ignore duplicates
when adding data in the mbnames intermediate files.
Github-ref: https://github.com/OfflineIMAP/offlineimap/issues/467
Reported-and-tested-by: Shin Kojima <shin@kojima.org>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
Use a mutex to lock the sync transaction, uniquely identified by the remote
folder name.
Serializing the syncs prevents any IDLE thread from syncing the same folder of
a concurrent autorefresh thread. Othewise, we could download new messages
twice, or read "one message past the last one" which in some cases creates a
duplicated messages. Also prevents IDLE threads from reading new messages
before the autorefresh thread finishes synchronization.
Github-ref: #421
Originally-submitted-by: Michael Hohmuth <hohmuth@sax.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
Otherwise, it might be impossible to know which account is connecting when more
than one is syncing.
Code style.
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
Commit 6b28071b0f makes the check once nametrans is applied. This is wrong
because separators are valid characters in names returned by nametrans. E.g:
"Sent" -> "[Gmail]/Sent"
Make the check against the raw name of the folder, instead.
Github-fix: https://github.com/OfflineIMAP/offlineimap/issues/353
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
1. There is one database per folder and sqlite requires to serialize the
writings. Instead of locking at LocalStatusSQLiteFolder instance level,
introduce a new DatabaseFileLock object which is shared across threads. This
fixes the concurrent writes issues that some users might experience by
duplications or flags restored to the previous state.
2. Close the database only when we are sure no other threads will use the
connection on a *per-file* basis. Previous fix 677afb8d8f is wrong
because the same lock is shared for all the database files.
Github-fix: https://github.com/OfflineIMAP/offlineimap/issues/350
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
This did not work and is not usefull since the purge() method was introduced in
1410a391bc. Actually, the purge() does what deletemessagelist() was supposed to
achieve.
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
When a maildir is removed it must be considered new for the sync. However, the
local cache of the folder remains. This means the sync of the folder removes all
the missing emails.
Avoid loosing of data for users not aware of the local cache by removing any
pre-existing status cache of a folder when we actually want to create the
database.
Improve style.
Github-fix: https://github.com/OfflineIMAP/offlineimap/issues/333
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
Make mbnames to work with intermediate files, one per account, in the JSON
format. The mbnames target is built from those intermediate files.
Github-Fix: https://github.com/OfflineIMAP/offlineimap/issues/66
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
There is no other way to make Python2 and Python3 happy, because syntax
raise E, V, T is incompatible with the latter.
Signed-off-by: Łukasz Żarnowiecki <dolohow@outlook.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
We currently close the database as soon as possible while we handle the status
backend but this is still too early because autorefresh induces looping on this
code block.
Instead of delaying the closing outside of the loop, it's easier to delay the
opening as late as possible (inside the loop). The downside is that the database
is opened/closed more than once when autorefresh is enabled. The good news is
that this make the code much easier.
Fixes regression introduces by 6fb5700.
Reported-by: Łukasz Żarnowiecki <dolohow@outlook.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
It is more readable and returns a list therefore it is compatible both
with Python 2 and 3.
Signed-off-by: Łukasz Żarnowiecki <dolohow@outlook.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
1. When using maxage, local and remote messagelists are supposed to only
contain messages from at most maxage days ago. But local and remote used
different timezones to calculate what "maxage days ago" means, resulting
in removals on one side. Now, we ask the local folder for maxage days'
worth of mail, find the lowest UID, and then ask the remote folder for
all UID's starting with that lowest one.
2. maxage was fundamentally wrong in the IMAP-IMAP case: it assumed that
remote messages have UIDs in the same order as their local counterparts,
which could be false, e.g. when messages are copied in quick succession.
So, remove support for maxage in the IMAP-IMAP case.
3. Add startdate option for IMAP-IMAP syncs: use messages from the given
repository starting at startdate, and all messages from the other
repository. In the first sync, the other repository must be empty.
4. Allow maxage to be specified either as number of days to sync (as
previously) or as a fixed date.
Signed-off-by: Janna Martl <janna.martl109@gmail.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
The basic problem is in the context of syncing multiple accounts where
one is fast and the others are slower (due to the number of folders).
When the fast account completes, the other accounts are partially written
through the list and if the file is read during this time, the list can
be useless. However, in the general case, the file is probably left
around from a previous run of offlineimap and is more correct, so add an
option to leave it alone until all syncing is done.
Incremental is still the default since this running offlineimap using
its own timer setup is likely the most common setup. Turning it off
works best with one-shot mode triggered by cron or systemd timers.
Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
We usually mutate some exceptions to OfflineImapError() and it is
a whole lot better if such exception will show up with the original
traceback, so all valid occurrences of such mutations were transformed
to the 3-tuple form of "raise". Had also added coding guidelines
document where this re-raise strategy is documented.
Signed-off-by: Eygene Ryabinkin <rea@codelabs.ru>
- Multi-line documentation for functions and methods
now has ending triple-double-quotes on an own line,
as per PEP 257.
- Added documentation and comments to almost all functions
and methods.
- Added stub implementations for getconfig() and getsection()
inside CustomConfig.ConfigHelperMixin to provide sane
run-time diagnostics for classes that doesn't implement them.
Signed-off-by: Eygene Ryabinkin <rea@codelabs.ru>
