Commit Graph

214 Commits

Author SHA1 Message Date
Sebastian Spaeth
eb616da602 Rename folder.isuidvalidityok()
Use nicer name folder.check_uidvalidity() and improve code documentation

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-19 12:03:03 +01:00
Sebastian Spaeth
297a618441 Rename folder.getsaveduidvalidity(), folder.getuidvalidity()
Modernize names to: folder.get_saveduidvalidity(), folder.get_uidvalidity()

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-19 12:03:03 +01:00
Sebastian Spaeth
9453e1d955 Fix getuidvalidity crash (UIDVALIDITY returning None)
Rename getuidvalidity -> get_uidvalidity and cache the IMAP result.

1) Start modernizing our function names using more underscores
2) IMAPs implementation of get_uidvalidity was removing the UIDVALIDITY result
   from the imaplib2 result stack, so subsequent calls would return "None".
   As various functions can invoke this, this led to some errors that we
   avoid by caching the current UIDVALIDITY value in the Folder instance.

There are more simplifications and improvements to be made.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-19 12:02:13 +01:00
Sebastian Spaeth
6dc74c9da5 Improve delete performance with SQLITE backend
When deleting many (eg 2000) mails using the SQLITE backend, this takes
a long time durig which OfflineImap can not be aborted via
CTRL-C. Thinking it had frozen permanently, I killed it hard, leaving a
corrupted db journal (which leads to awkwards complaints by OLI on
subsequent starts!). That shows that delete performance is critical and
needs improvement.

We were iterating through the list of messages to delete and deleted
them one-by-one execute()'ing a new SQL Query for each message. This
patch improves the situation by allowing us to use executemany(), which
is -despite still being one SQL query per message- much faster. This is
because rather than performing a commit() after each mail, we now do
only one commit() after all mails have been deleted.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-17 04:17:15 +01:00
Sebastian Spaeth
d72bb88729 Improve error message
Add *what* UID was returned in case savemessage did not return a UID>0

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-09 09:57:36 +01:00
Sebastian Spaeth
3284e010ff Revert "use .response() rather _get_untagged_response()"
Recently the internal function use of imaplib2's _get_untagged_response()
was switched to use the public documented .response() function (which
should return the same data). However within a few fays we received reports
that both uses of a) the UIDVALIDITY fetching and b) the APPENDUID fetching
returned [None] as data although the IMAP log definitely shows that data
was returned. Revert to using the undocumented internal imaplib2 function,
that seemed to have worked without problems. This needs to be taken up to
the imaplib2 developer.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-09 09:51:43 +01:00
Sebastian Spaeth
7184ec28cc Sanity check return value of UIDVALIDTY response
We have a reported case where response('UIDVALIDITY') returned [None]
which results in an ugly non-intuitive crash. Sanity check and report
something nicer.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-08 12:26:47 +01:00
Sebastian Spaeth
50de2174bf Allow to pass 'force' arg to selectro() to enforce a new select
Pass through the 'force' argument from selectro() to select() so that it
can also enforce a new SELECT even if we already are on that folder.

Also change the default parameter from '0' to 'False' to make clear that
this is a Bool.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-08 11:29:54 +01:00
Sebastian Spaeth
6e9e256946 Ignore lower-case custom Maildir flags
Do not read in custom maildir flags, or we would try to sync them over
the wire. The next step will be to merge flag writes with existing
custom flags, so we don't lose information.

The long term goal will be to attempt to sync flags to the other side,
of course.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-07 22:00:45 +01:00
Sebastian Spaeth
d549cbdac9 Fix code comment on flag stripping
Fix code comment that we preserve custom dovecot flags. We discard them.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-07 21:34:57 +01:00
Sebastian Spaeth
0b85a34fc7 Maildir: flagmatchre --> re_flagmatch
Overlooked a variable renaming when merging in a branch.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-07 13:10:41 +01:00
Sebastian Spaeth
3a1eab7383 Remove a stray debug output that slipped in the previous commit.
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-07 01:31:24 +01:00
Sebastian Spaeth
ec63b4fe6b replace imaplib internal _get_untagged_response with public functions
We were using the internal imaplib2 _get_untagged_response() functions a
few times. Replace 3 of these calls with 2 calls to the public function
response() rather than fudging with internals that could change anytime.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-07 01:28:20 +01:00
Sebastian Spaeth
17f60f7233 Remove from __future__ import with_statements
These were needed for python <2.6 compatability, but since we depend on
python 2.6 now, these can go.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 23:13:55 +01:00
Sebastian Spaeth
8fc7227189 SEVERE: Fix getting wrong UID back on IMAP upload
This change looks harmless, but it fixes a severe bugfix, potentially
leading to data loss! It fixes the "on n new uploads, it will redownload
n-1, n-2, n-3,... messages during the next syncs" condition, and this is
what happens:

If there are more than one Mails to upload to a server, we do that by
repeatedly invoking folder.IMAP.savemessage(). If the server supports
the UIDPLUS extension we query the resulting UID by doing a:

imapobj._get_untagged_response('APPENDUID', True)

and that is exactly the problem. The "True" part causes the reply to
remain in the "response stack" of the imaplib2 library. When we do
the same call on a subsequent message and the connection is still on the
same folder, we will get the same UID response back (imaplib2 only looks
for the first matching response and returns that). The only time we
clear the response stack, is when the IMAP connection SELECTS a
different folder.

This means that when we upload 10 messages, the IMAP server gives us
always the same UID (that of the first one) back. And trying to write
out 10 different messages with the same UID will confuse OfflineIMAP.

This is the reason why we saw the ongoing UPLOADING/DOWNLOADING behavior
that people reported. And this is the reason why we saw the
inconsistency in the UID mapping in the IMAP<->IMAP case.

I urge everyone to upgrade ASAP. Sorry for that, I don't know why the
problem only became prevalent in the recent few releases as this code
has been there for quite a while.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 21:57:48 +01:00
Sebastian Spaeth
0ea6c6ed47 Forgot to change a variable name in all cases
the newuid var was renamed new_uid but there was one leftover. Fixed.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 21:41:04 +01:00
Sebastian Spaeth
78a37f27ef WIP, revamp how we treat top-level dirs
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 19:08:48 +01:00
Sebastian Spaeth
ff50585007 Folder-Maildir.savemessageflags(): Only parse file name if flags changed
Rather than always parsing the filename, we only need to do so if the flags
have actually changed, otherwise we can keep the filename.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 19:08:48 +01:00
Sebastian Spaeth
de537dc09c Implement change_message_uid
Previously, assigning a new UID to a mapped IMAP or Maildir repository
was done by loading the "local" item, saving it under a new UID and
deleting the old one. This involved lots of disk activity for nothing
more than an effective file rename in Maildirs, and lots of network
usage in the MappedUID cases.

We do this on every upload from a local to a remote item, so that can
potentially be quite expensive. This patch lets backends that support it
(Maildir, MappedUID) efficiently rename the file rather than having to
read the mail content, write it out as a new file and delete the old
file. This speeds up uploads from Maildir and the MappedUID server.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 19:08:48 +01:00
Sebastian Spaeth
09ce56c594 Factor out creating a Maildir message filename
Various functions (such as change_message_uid) will want to construct
maildir filenames, so factor out the code into a helper.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 19:08:48 +01:00
Sebastian Spaeth
6fe808338c Refactor parsing out maildirs filename components
Create a helper function that retrieves the UID, folder MD5, and Flags from
a message filename.

We need these items when we simply want to rename (=new UID) a Maildir
message file later. The new function can give us these components.

Rework, so we cache the calculation of the folder's md5 value once, it
never changes and we call it a lot.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 19:08:45 +01:00
Sebastian Spaeth
d5666ce91d Don't create invalid maildir names with lower case maildir flags
If someone had a custom :2,a flag, adding a new flag would lead to the
invalid maildir filename ...a:2,... due to regex deficiencies not coping
with this. Fix this so we alway produce valid maildir names.

Note that custom flags are still problematic: as the syncing to the
remote IMAP server will fail, the next sync will assume that they have
been removed from the remote IMAP side and they will be removed from the
local Maildir then. We will need to think about how to handle this. At
least, with this patch we won't lose standard flags and won't produce
invalid maildir names.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-06 13:05:08 +01:00
Sebastian Spaeth
64f5e557bc Fix (harmless) regex flaw when determining maildir flags
The regex for catching Maildir message flags was
self.infosep + '.*2,([A-Z]+)' (infosep being ':').

The .* is bogus, as there is nothing between the : and the 2, per
maildir name specification, so remove that unneeded piece.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-05 14:39:09 +01:00
Sebastian Spaeth
0ccf06d5e6 Implement clean CTRL-C termination
Previously, we would simply bail out in an ugly way, potentially leaving
temporary files around etc, or while writing status files. Hand SIGINT
and SIGTERM as an event to the Account class, and make that bail out
cleanly at predefined points. Stopping on ctrl-c can take a few seconds
(it will e.g. finish to transfer the ongoing message), but it will shut
down cleanly.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2012-01-04 19:31:27 +01:00
Sebastian Spaeth
8ec6980c96 Don't fail on empty LocalStatus cache files
As reported in https://github.com/spaetz/offlineimap/pull/2, we would
fail when files are empty because file.read() would throw attribute
errors.

Fix this by removing the superfluous read() check and additionally log
some warning message.

Reported-by: Ralf Schmitt
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-12-01 23:57:54 +01:00
Sebastian Spaeth
f4a32bafd6 Pass ui.registerthread an Account() and not a name as string
This way, we can use all the account functions such as set_abort_event()
from the ui if needed.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-11-03 13:45:44 +01:00
Sebastian Spaeth
d54859a931 Don't setDaemon explicitly, it's done inherently
All ExitNotifyThreads and InstanceLimitThreads are setDaemon(True) in their
constructor, so there is no need to do that again in the code.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-11-02 11:29:23 +01:00
Sebastian Spaeth
656405616d Drop connection if it might be bad on APPEND
1) Differentiate error messages between imaplib.abort and imaplib.error
exceptions in the log.

2) Drop connections in the case of imapobj.error, it also might denote a
   broken connection.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-11-02 10:36:30 +01:00
Sebastian Spaeth
33b4a16dac Fix mbox.select(foldername) readonly parameter comparison
The default parameter value was "None", and we were comparing that
directly to the imaplib2 value of is_readonly which is False or True, so
the comparison always returned "False".

Fix this by setting the default parameter to "False" and not
"None". Also convert all users of that function to use False/True.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-11-02 08:57:01 +01:00
Sebastian Spaeth
b0fd6c6ab8 Do not import threading.*
Only import the lock, that we actually need. Also import the with statement
for use with python 2.5. We'll need it for sure in this file.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-10-05 18:34:32 +02:00
Sebastian Spaeth
9578f29195 Use 'reference' value when creating an IMAP directory
A repositories 'reference value is always prefixed to the full folder
path, so we should do so when creating a new one. The code had existed
but was commented out since 2003, I guess the "reference" option is not
too often used.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-30 16:57:07 +02:00
Sebastian Spaeth
eb0b546927 Output progress indication when copying files
Output (2 of 500) when logging message copying. This required moving of
self.ui.copyingmessage into a different function where we actually have
the information about the progress handy.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-29 16:51:48 +02:00
Sebastian Spaeth
4bfc1e8227 except imapobj.abort() -> except imapobj.abort
When checking for the IMAP4.abort() exception, we need of course to
perform:

except imapobj.abort:

and not

except imapobj.abort():

Thanks to Johannes Stezenbach <js@sig21.net> for pointing to the glitch.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-27 14:08:20 +02:00
Sebastian Spaeth
e145beb394 Fix "command CHECK illegal in state AUTH"
Dave identified a case where our new dropped connection handling did
not work out correctly: we use the retry_left variable to signify
success (0=success if no exception occured).

However, we were decrementing the variable AFTER all the exception
checks, so if there was one due to a dropped connection, it
could well be that we 1) did not raise an exception (because we want to
retry), and 2) then DECREMENTED retry_left, which indicated "all is
well, no need to retry".

The code then continued to check() the append, which failed with the
above message (because we obtained a new connection which had not even
selected the current folder and we were still in mode AUTH). The fix is
of course, to fix our logic: Decrement retry_left first, THEN decide
whether to raise() (retry_left==0) or retry (retry_left>0) which would
then correctly attempt another loop. I am sorry for this newbie type of
logic error. The retry count loop was too hastily slipped in, it seems.

Reported-by: Dave Abrahams <dave@boostpro.com>
Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-26 16:13:52 +02:00
Sebastian Spaeth
953c58a9c9 Robustify (&fix) error throwing on APPEND
If APPEND raises abort(), the (typ, dat) variables will not be set, so
we should not be using it for the  OfflineImapError Exception
string. Fixing and prettifying the string formatting a bit at the same
time.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-26 15:57:35 +02:00
Sebastian Spaeth
e30ae53b2a Folder: Force top-level folder visiblename to ''
nametrans rules can lead to different visiblename names for the
top-level directory, specifically both '.' and '' (the latter was
recently introduced). However, we need to be able to compare folder
names to see if we need to create a new directory or whether a directory
already exists, so we need to be able to compare a repositories
visiblename (=transposed via nametrans rule) with another folder.

To make the top-level directory comparison happen, we enforce a
top-level name of '', so that comparisons work.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-23 14:31:49 +02:00
Sebastian Spaeth
6b2ec956cf Apply nametrans to all Foldertypes
getvisiblename() was only defined on IMAP(derived) foldertypes, but we
want it on eg. Maildirs too, so we define it centrally in Folder.Base.py
rather than only in folder.IMAP.py.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 14:23:08 +02:00
Sebastian Spaeth
8ba17c5bd1 add sync_this variable to all Folder() instances
This variable shows if this folder should be synced or is disabled due to
a folderfilter statement. This lets us distinguish between a non-existent
folder and one that has been filtered out. Previously any filtered folder
would simply appear to be non-existing.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 11:35:52 +02:00
Sebastian Spaeth
32ca20d0da Folder.Maildir: No need to store 'uid' in messagelist dict.
The Message UID is already the key to self.messagelist, so we have that
information. It is redundant to save the UID again as
self.messagelist[uid]{'uid': uid} and we never made use of the
information anyway.

The same thing should be done with the other 2 backends.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 10:01:31 +02:00
Sebastian Spaeth
dfdc4d457b Folder.Maildir: Simplify getmessagetime
No need to use os.stat()['st_mtime'] when there is os.path.getmtime()

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 09:59:04 +02:00
Sebastian Spaeth
a43677a3e6 Shorten self.infosep assignment
A more pythonic and less verbose way to do the same. Add a comment what the
variable is all about.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 09:58:20 +02:00
Sebastian Spaeth
f5366343b9 Fix default Maildir File permissions.
open() and os.open() lead to different file permissions by default, and
while we have not changed the os.open that had been used, some code
changes led to these permissions slipping through. Fix this by setting
the permissions explicitly to 0666 (minus the users umask).

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
2011-09-19 09:25:48 +02:00
Sebastian Spaeth
0d3303ec12 Remove visiblename as parameter to IMAPFolder creation
IMAPFolder has the repository and foldername values so it can get the
transposed (aka visiblename) of a folder itself just fine. There is no
need to pass it in as an separate parameter.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:54:29 +02:00
Sebastian Spaeth
80e87d0d99 Don't pass in 'root' as para to LocalStatusFolders
They have the Repository() which contains the root, so no need to pass
it in as an extra parameter. Rename repository.LocalStatus()'s
self.directory to self.root for consistency with other backends.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:54:12 +02:00
Sebastian Spaeth
ee75e0921f Remove 'config' as parameter from BaseFolder & derivatives
It is possible to get the config parameter from the Repository() which is
set in BaseFolder, so we set self.config there and remove the various
methods and 'config' parameters that are superfluous.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:54:12 +02:00
Sebastian Spaeth
410e2d35e9 Set accountname in BaseFolder, and don't pass it in initialization
We passed in the accountname to all derivatives of BaseFolder, such as
IMAPFolder(...,repository,...,accountname), although it is perfectly
possible to get the accountname from the Repository(). So remove this
unneeded parameter. Each backend had to define getaccountname() (although
the function is hardly used and most accessed .accountname directly).

On the other hand BaseFolder was using getaccountname but it never defined
the function. So make the sane thing, remove all definitions from backends
and define accountname() once in Basefolder. It was made a property and not
just a (public) attribute, so it will show up in our developer
documentation as public API.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:54:12 +02:00
Sebastian Spaeth
c93cd9bb1a BaseFolder(): Save name and repository
As all Folders share these parameters, we can safely handle them in
BaseFolder. This makes sense, as BaseFolder has a getname() function
that returns self.name but nothing actually set self.name.

It also saves a few lines of code.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:54:12 +02:00
Sebastian Spaeth
7941ea7e7d folder.IMAP: Make use of the new connection discarding
In getmessage() we were releaseing a connection when we detected a
dropped connection, but it turns out that this was not enough, we need
to explicitely discard it when we detect a dropped one. So add the
drop_conn=True parameter that was recently introduced to force the
discarding of the dead conection.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:53:00 +02:00
Sebastian Spaeth
fe4f385e2c folder.IMAP: Improve dropped connection handling in quickchanged()
The quickchanged() function was not handling dropped connections yet. If
IMAP4.select() throws a FOLDER_RETRY error, we will now discard the
connection, reconnect and retry.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-16 12:53:00 +02:00
Sebastian Spaeth
7c83d505f8 IMAP cachefolder: Fix returning None on select
We rely on the number of mails being returned by the imapobj.select()
call, however that only happens if we "force" a real select() to occur.
Pass in the force parameter that I dropped earlier (we did not make use
of the return value when I dropped it, that is how it slipped through).

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>
2011-09-13 18:31:28 +02:00