Commit Graph

1281 Commits

Author SHA1 Message Date
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
5af1796777 de-duplicate handling of box operation (create & expunge) options
loops work just fine ...
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
bac2b00f1b disable use of LITERAL+ for payloads > 100k
when LITERAL+ is used, the server has no chance for early rejection of
messages. this means that the client can upload megabytes for nothing.
so simply don't use LITERAL+ for big messages. of course this adds
server roundtrips, but that's tough luck.

the limit could be arguably higher than 100k (or even configurable).
i set it to ~2 sec with my fairly average DSL line.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
6c959c3ee4 fix handling of unsolicited BYE responses
they can come in at any time, after which we must expect the connection
to be closed (and not complain about it).
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
4f3ef54f3a fix treatment of untagged NO and BAD responses
they aren't possible greeting responses. however, they are warning resp.
error reports from the server, so print them accordingly.
2015-01-11 15:05:29 +01:00
Oswald Buddenhagen
139b90be29 added support for IMAP DEFLATE
initial patch by Jesse Weaver <pianohacker@gmail.com>, but mostly
rewritten by me.
2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
f0b80e7d35 make socket writing buffered
the primary objective is reducing the number of small SSL packets (which
are always padded), but fewer syscalls in the non-SSL case should be
good as well.
2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
efb23ab96a vectorize socket_write()
the objective is making the buffer code aware of the total size of a
write in advance. this commit doesn't take advantage of that yet.
2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
3f629af07e remove support for faking notifications
with the existence of timers, this is now superfluous.
2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
a4e2f1a60d use null timer instead of faking a socket notification 2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
7b76d9ff7e add timers to mainloop
they are called "wakeups", though, as timer_t already exists in time.h.
2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
1fd66195d8 change socket notifier design
instead of keeping the structures in an opaque array (which was a shadow
of the struct pollfd array if poll() was supported), make them directly
addressable.

this has the advantage that notifier-altering operations (mostly
en-/disabling) don't need to look up the structure by file handle each
time.
on the downside, data locality in the main loop is worse.
neither of these have any real effect on performance.

note that the structures are not allocated separately, but embedded into
the the parent structure (like sockets already were).
2015-01-11 15:05:28 +01:00
Oswald Buddenhagen
f68e021b90 factor out socket_open_internal() 2015-01-11 15:05:28 +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
9a4be0af5f skip merges during ChangeLog generation 2015-01-11 14:32:05 +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
9eba3d8cd9 don't leave 2nd store in limbo if opening 1st store fails synchronously
we can't leave the store FRESH, as otherwise the error handling code
will assume it is still being opened and will return to the main loop.
depending on the config this would cause an immediate termination or an
indefinite wait.
2015-01-02 11:29:51 +01:00
Oswald Buddenhagen
3db3f4718e remove stray CRLF from AUTHENTICATE continuations
this re-introduces 6741bc94 (just a bit differently), thus effectively
reverting fbfcfea5. i suppose this extra CRLF is needed by a broken
CRAM-MD5 implementation of some server, which is why it was there in the
original implementation as well. however, it breaks more pedantic
non-broken servers. if somebody complains, we'll need to add a much
more sophisticated hack.
2014-12-29 02:30:33 +01:00
Oswald Buddenhagen
518b5630dc cleanup dead cram() prototype 2014-12-29 02:30:33 +01:00
Oswald Buddenhagen
5dfca41422 fix more memcmp() abuse
amends 1217193fb and 4f383a807.
2014-12-29 02:30:01 +01:00
Oswald Buddenhagen
6f7d416bb8 fix acceptance of trusted SSL certs
we should make no assumptions about the layout of OpenSSL's certificate
store, in particular when they are wrong. so copy the interesting part
instead of "deep-linking" into it.

this code is uglier than it should be, but OpenSSL's extensive use of
macros to manage data types would force us to include the ssl headers
into our headers otherwise, which would be even uglier.

REFMAIL: <545442CC.9020400@nodivisions.com>
2014-11-08 14:00:28 +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
7ee0483436 nuke home-grown CRAM-MD5 support
it was obsoleted by SASL support.
i deem the additional dependency acceptable when one wants the feature.
2014-10-20 10:10:55 +02:00
Oswald Buddenhagen
eb1005151c add SASL support
patch initially by Jack Stone <jwjstone@fastmail.fm>,
cleaned up by Jan Synacek <jsynacek@redhat.com>,
... and then almost completely rewritten by me. ^^
2014-10-20 10:10:55 +02:00
Oswald Buddenhagen
360600b98d factor out ensure_user() and ensure_password() 2014-10-18 16:18:48 +02:00
Oswald Buddenhagen
1217193fbb rework authentication mechanism configuration
RequireCRAM (another fairly stupid "use if available" option) is now
deprecated. instead, the AuthMech option can be used to give a precise
list of acceptable authentication mechanisms (which is currently "a bit"
short). in particular, this allows *not* using CRAM-MD5 even if it's
available.
2014-10-18 16:18:48 +02:00
Oswald Buddenhagen
aba3524d9b make it possible to disable usage of system cert store 2014-10-18 16:18:48 +02:00
Oswald Buddenhagen
7822bd8a91 require Host if SSL is used despite Tunnel 2014-10-18 16:18:48 +02:00
Oswald Buddenhagen
7ce57b9c00 make SSL certificate verification less arcane
instead of using a callback which messes with the certificate chain
verification, simply let OpenSSL ignore errors during that phase and
check the result only afterwards.
2014-10-18 16:18:48 +02:00
Oswald Buddenhagen
2745813367 re-design SSL/TLS configuration
the combinations of the various options made quite a mess. additionally,
'RequireSSL no' is inherently insecure - "use SSL if available" is plain
stupid.

the old options are still accepted, but will elicit a warning.
2014-10-18 16:18:48 +02:00
Oswald Buddenhagen
aa4f7a7d00 move use_imaps out of server_conf_t
it doesn't belong there - it's a property of imap_server_conf_t.
the port setup is now done while reading the config.

this makes socket.[hc] imap-agnostic.
2014-10-18 16:15:02 +02:00
Oswald Buddenhagen
3742fc475b deprecate the compat wrapper
after a decade, it's about time to phase it out.
2014-10-18 16:15:02 +02:00
Oswald Buddenhagen
2a3963af58 bump version 2014-10-18 16:15:02 +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
003ddb2199 permit IMAP Stores with explicitly empty Path
this is useful if the server sends an unhelpful NAMESPACE like
"INBOX." (which precludes clean use of Patterns with the real INBOX).
2014-10-04 18:37:34 +02:00
Oswald Buddenhagen
f385355bdb don't attempt to filter LIST response if there is no Path
we won't filter anything in that case anyway.
2014-10-04 18:37:34 +02:00
Oswald Buddenhagen
608834c6f1 permit Maildir Stores without a Path
it is perfectly reasonable to have a Store which has only an Inbox.
2014-10-04 18:37:33 +02:00
Oswald Buddenhagen
6ad7371f46 use resolved Path for initial filtering of LIST response
otherwise we'd ignore NAMESPACE, and funny things could happen.
2014-10-04 18:37:33 +02:00
Oswald Buddenhagen
de82023427 consider unexpected structure of NAMESPACE fatal 2014-10-04 18:37:33 +02:00