Commit Graph

179 Commits

Author SHA1 Message Date
Oswald Buddenhagen
77acc26812 implement Message-Id based UIDVALIDITY recovery 2017-01-21 12:09:01 +01:00
Oswald Buddenhagen
f9fe75602e don't fetch message size unless necessary
when syncing flags but not re-newing non-fetched messages, there is no
need to query the message size for all messages, as the old ones are
queried only for their flags.
2017-01-21 11:41:12 +01:00
Oswald Buddenhagen
1d3b36f89e factor out app_cr 2017-01-17 22:14:07 +01:00
Oswald Buddenhagen
3dffd68825 factor out copy_msg_convert() 2017-01-17 22:08:49 +01:00
Oswald Buddenhagen
951b7e77f8 factor out copy_msg_bytes() 2017-01-15 13:25:46 +01:00
Oswald Buddenhagen
0c36655201 print actually read TUID in debug message 2016-12-26 16:20:27 +01:00
Oswald Buddenhagen
1330f43034 null-terminate lines read from state file & journal
makes the subsequent code less convoluted.
2016-12-26 16:20:27 +01:00
Oswald Buddenhagen
4db64967c9 make more use of shifted_bit()
technically, this introduces a redundant AND, but the compiler is smart
enough to prove that (((A & M) ^ B) & M) == ((A ^ B) & M).
2016-12-18 22:03:51 +01:00
Oswald Buddenhagen
2bba9b903c wrap message trashing into simple transactions
trashing many messages at once inevitably overtaxes m$ exchange, and the
connection breaks. without any progress tracking, it would restart from
scratch each time, which would lead to a) it never finishing and b) many
copies of the messages in the trash.

full transactions as we do for "proper" syncing would be over the top,
as it's not *that* bad if some messages get duplicated in the trash. so
we record only the messages for which trashing completed, thus allowing
some overlap between the attempts.
2016-11-06 09:26:16 +01:00
Oswald Buddenhagen
5b0c8cfa60 use a temporary for sanity 2016-11-05 18:16:43 +01:00
Oswald Buddenhagen
ae95490d52 pre-sort exception list passed to driver->load_box()
... and use that to optimize the maildir driver somewhat.
2016-11-05 17:32:34 +01:00
Oswald Buddenhagen
7b567164ff abstract growable arrays somewhat
... and sneak in a C99 requirement on the way. just because.
2016-11-05 17:32:34 +01:00
Oswald Buddenhagen
7ddd8d1737 Merge branch 'isync_1_2_branch' 2015-11-08 12:04:44 +01:00
Oswald Buddenhagen
8979ebbdf2 tolerate case changes in X-TUID header name
it is legal for an email system to simply change the case of rfc2822
headers, and at least one imap server apparently does just that.
this would lead to us not finding our own header, which is obviously not
helpful.

REFMAIL: CA+fD2U3hJEszmvwBsXEpTsaWgJ2Dh373mCESM3M0kg3ZwAYjaw@mail.gmail.com
2015-09-01 15:40:54 +02:00
Oswald Buddenhagen
549e6739e8 support verbatim and real Maildir++ subfolder naming styles
the legacy style is a poorly executed attempt at Maildir++, so introduce
the latter for the sake of completeness. but most users will probably
just want to use subfolders without any additional dots.
2015-05-01 20:53:23 +02:00
Oswald Buddenhagen
0e1f8f9a3f revamp console output options
- the old meaning of -V[V] was moved to -D{n|N}, as these are really
  debugging options.
- don't print the info messages by default; this can be re-enabled with
  the -V switch, and is implied by most debug options (it was really
  kind of stupid that verbose/debug operation disabled these).
- the sync algo/state debugging can be separately enabled with -Ds now.
2015-03-30 10:31:26 +02:00
Oswald Buddenhagen
8aa22a62e7 make progress counters global
which means they are now cumulative, and include channels and boxes.
2015-03-30 10:30:35 +02:00
Oswald Buddenhagen
a8b26dc4ac soft-limit peak memory usage
propagating many messages from a fast store (typically maildir or a
local IMAP server) to a slow asynchronous store could cause gigabytes of
data being buffered. avoid this by throttling fetches if the target
context reports memory usage above a configurable limit.

REFMAIL: 9737edb14457c71af4ed156c1be0ae59@mpcjanssen.nl
2015-02-15 18:13:05 +01:00
Oswald Buddenhagen
d9a983add6 add support for propagating folder deletions 2015-01-17 17:51:20 +01:00
Oswald Buddenhagen
926788f3ae supplement open_box() with box existence information from list_store()
there is no point in trying to open a non-existing box before trying to
create it.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
7b7304b625 split create_box() off from open_box()
this allows us to do something else than creating missing boxes
depending on circumstances. hypothetically, that is.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
f1809ddd2b open the mailboxes after loading the sync state
this allows us to react differently to a box'es absence depending on the
state. hypothetically, so far.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
f43617cd94 lock sync state lazily
don't try to lock it until we actually read or write it.
the idea is to not fail with SyncState * if we tried to load the state
before selecting a non-existing mailbox. this is ok, because if the
mailbox is missing, we obviously have no sync state pertaining to it,
either.
as a side effect, this allows simplifying an error path.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
fb19d644f7 split off open_box() from select_box()
aka prepare_paths() reloaded. we'll need it in a moment.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
97a42cd825 factor out {prepare,lock,save,load}_state() 2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
9982e7bf08 make some driver function names more descriptive 2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
00ebf45be2 rename driver::prepare_opts() => prepare_load()
... and move it to the right place in the structure and fix the doc to
not claim that it is called before select().
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
42cedc8f81 introduce uchar, ushort & uint typedefs 2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
b730f66f7d Merge branch 'isync_1_1_branch' into HEAD
Conflicts:
	src/socket.c
2015-01-11 14:32:15 +01:00
Oswald Buddenhagen
2fa75cf159 fix UID assignment with some non-UIDPLUS servers
the seznam.cz IMAP server seems very eager to send UIDNEXT responses
despite not supporting UIDPLUS. this doesn't appear to be a particularly
sensible combination, but it's valid nonetheless.

however, that means that we need to save the UIDNEXT value before we
start storing messages, lest imap_find_new_msgs() will simply overlook
them. we do that outside the driver, in an already present field - this
actually makes the main path more consistent with the journal recovery
path.

analysis by Tomas Tintera <trosos@seznam.cz>.

REFMAIL: 20141220215032.GA10115@kyvadlo.trosos.seznam.cz
2015-01-11 14:29:19 +01:00
Oswald Buddenhagen
958af473a0 fix conditional for early failure in cancel_done() 2015-01-02 12:38:48 +01:00
Oswald Buddenhagen
f377e7b696 introduce FieldDelimiter and InfoDelimiter options
... for windows fs compatibility.

the maildir-specific InfoDelimiter inherits the global FieldDelimiter
(which affects SyncState), based on the assumption that if the sync
state is on a windows FS, the mailboxes certainly will be as well, while
the inverse is not necessarily true (when running on unix, anyway).

REFMAIL: <CA+m_8J1ynqAjHRJagvKt9sb31yz047Q7NH-ODRmHOKyfru8vtA@mail.gmail.com>
2014-10-25 17:42:48 +02:00
Oswald Buddenhagen
85fd5ceb54 move orig_name out of store_t
it's state specific to the synchronizer.
2014-10-25 15:06:50 +02:00
Oswald Buddenhagen
47897d2403 fix memory management of current mailbox name
it was a stupid idea to store the pointer to a variable we need to
dispose in a structure which has its own lifetime.
2014-10-04 18:37:34 +02:00
Oswald Buddenhagen
4f383a8074 stop abusing memcmp()
memcmp() is unfortunately not guaranteed to read forward byte-by-byte,
which means that the clever use as a strncmp() without the pointless
strlen()s is not permitted, and can actually misbehave with
SSE-optimized string functions.

so implement proper equals() and starts_with() functions. as a bonus,
the calls are less cryptic.
2014-10-04 18:37:34 +02:00
Oswald Buddenhagen
526231bc22 initialize store_t::name
the field is marked foreign (for the drivers), so a recycled store may
contain an old pointer in it. that would make our error path crash.

REFMAIL: CAF_KswU7aBS7unnK+rdZy1PG_8SZUAW=tcg75HixDLLE0w3Lhw@mail.gmail.com
2014-07-02 08:50:22 +02:00
Oswald Buddenhagen
29b07ca7a6 actually print the faulty mailbox name, not some garbage
REFMAIL: CAF_KswU7aBS7unnK+rdZy1PG_8SZUAW=tcg75HixDLLE0w3Lhw@mail.gmail.com
2014-07-02 08:49:47 +02:00
Oswald Buddenhagen
2d4bc1e613 error-check committing of sync state
a failure here is rather unlikely, but let's be pedantic.
a failure is not fatal (we'll just enter the journal replay path next
time), so only print warnings.

found by coverity.
2014-04-12 18:31:18 +02:00
Oswald Buddenhagen
aa0118d047 better error messages for sync state and journal related errors
we can make perfectly good use of errno here.
2014-04-12 18:30:09 +02:00
Oswald Buddenhagen
c6ddad6ac4 remove pointless/counterproductive "Disk full?" error message suffixes
the affected functions will set errno to ENOSPC when necessary.
2014-04-12 18:28:21 +02:00
Oswald Buddenhagen
c5f2943ff6 don't crash in message expiration debug print
we would try to print the uids from the non-existing srec of unpaired
messages while preparing expiration.
this would happen only if a) MaxMessages was configured and b) new
messages appeared on the slave but we were not pushing, so it's a bit of
a corner case.

found by coverity.
2014-04-12 15:28:28 +02:00
Oswald Buddenhagen
6d2fd370a6 fix _POSIX_SYNCHRONIZED_IO usage
it can be -1 for unsupported, or 0 for runtime detection (which we don't
do).
2014-01-02 21:09:09 +01:00
Oswald Buddenhagen
359091625d MaxMessages: ignore entries with no master while calculating bulk fetch 2013-12-13 15:38:50 +01:00
Oswald Buddenhagen
2bbd07ec87 adjust comments to new reality 2013-12-11 16:29:34 +01:00
Oswald Buddenhagen
5a21042e98 ensure sequencing of message propagation and store closing
by putting the message propagation last, d3f634702 uncovered a
long-standing problem: we might have closed the source store before all
messages were propagated from it.
2013-12-11 16:29:33 +01:00
Oswald Buddenhagen
c47ee1c8c4 fix error paths wrt sync drivers, take 3
msgs_copied() was not checked at all, and msgs_flags_set() was doing it
wrong (sync_close() was not checked).

instead of trying to fix/extend the msgs_flags_set() model (ref-counting
and cancelation checking in lower-level functions, and return values to
propagate the status), place the refs/derefs around higher-level scopes
and do the checking only there. this is effectively simpler, and does
away with some obscure macros.
2013-12-11 16:29:33 +01:00
Oswald Buddenhagen
03b3b566f1 reshuffle sources a bit
split header and move some code to more logical places.
2013-12-08 23:19:12 +01:00
Oswald Buddenhagen
71524cb6b0 reduce FSync option to a boolean
there is no use for Thorough mode any more, so simplify the
configuration.
2013-12-08 11:12:09 +01:00
Oswald Buddenhagen
29a56e2dc4 don't fsync after logging every TUID
as we now don't actually start propagating new messages until all TUIDs
have been generated, it's sufficient to sync just once. this makes it
a cheap operation, so we can do it at SYNC_NORMAL level already.
2013-12-08 11:12:09 +01:00
Oswald Buddenhagen
8d5bd62537 add ExpireUnread option 2013-12-08 11:12:09 +01:00