Commit Graph

1292 Commits

Author SHA1 Message Date
Oswald Buddenhagen
4e849196b8 install the config examples to docdir 2012-09-01 21:15:53 +02:00
Oswald Buddenhagen
87cb946eda update debian packaging 2012-09-01 21:15:53 +02:00
Oswald Buddenhagen
c43fc90dcf fix rpm packaging 2012-09-01 21:15:53 +02:00
Oswald Buddenhagen
6d49c343fc use a hash table for message => sync record lookup
this removes the pathological O(<number of sync records> * <number of
new messages>) case at the cost of being a bit more cpu-intensive (but
O(<number of all messages>)) for old messages.
2012-09-01 21:15:53 +02:00
Oswald Buddenhagen
18225344c6 make use of UID EXPUNGE 2012-09-01 21:15:52 +02:00
Oswald Buddenhagen
dfd7516b9a introduce ability to flatten the hierarchy of Stores 2012-09-01 21:15:52 +02:00
Oswald Buddenhagen
2585dd3324 add support for hierarchical mailboxes 2012-09-01 21:15:18 +02:00
Oswald Buddenhagen
4f94197e41 calculate trash box path already in maildir_open_store()
this gives us some cleaner code paths later on, as we can treat the
trash box like a regular mailbox.
2012-09-01 21:15:08 +02:00
Oswald Buddenhagen
8121224744 ensure that mailbox creation in maildir_store() is limited to trashing
other mailboxes would have been maildir_select()ed already.
2012-09-01 21:15:08 +02:00
Oswald Buddenhagen
a3f66f8f1d refactor: imap_select2_p2 => imap_refcounted_done_box
soon, we'll use it for something different, too
2012-09-01 21:15:08 +02:00
Oswald Buddenhagen
343f16771a don't crash when select() on master fails synchronously
svars->drv[S] would not be initialized yet, so cancel_sync() would
crash.
2012-09-01 21:15:08 +02:00
Oswald Buddenhagen
28cccf4b35 fix error handling of invalid SyncState *
when we find that the store is incompatible with in-store sync state,
we want to fail the whole channel. however, we must not claim that the
store died, otherwise it won't be disposed of properly.
2012-09-01 21:15:08 +02:00
Oswald Buddenhagen
1bc9c6d9cf reject qualified mailboxes with the magic name INBOX
otherwise we couldn't tell them apart from the real INBOX after
stripping away the Path.
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
40f2812a41 suppress bdb complaints about unknown file format
pass DB_TRUNCATE when creating databases. otherwise bdb will complain
about the empty file we pass it (we have to create it upfront to
implement our locking).
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
9bbb02b8fd Revert "fix UIDNEXT handling"
in fact, UIDNEXT (and UIDVALIDITY) null is *not* allowed (see RFC3501
section 9). them popping up nonetheless was a dovecot bug (which would
also confuse dovecot itself).
having it in as a workaround was no good either, as quite some other
code in mbsync assumes that UIDs are not null.

This reverts commit e1fa867 and most of 39006d7.

-REFMAIL: 4CA62BA1.4020104@lemma.co.uk
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
233f563569 deal with concurrent maildir modifications during listing
files may be renamed (due to new -> cur transition or flag changes),
which may lead to two effects if ignored:
- we see both the old and the new name, so we report a spurious
  duplicate UID
- we see neither name, so we report a spurious deletion

as countermeasure, record and compare directory modification times. upon
mismatch, we just start over - as usual.
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
3386285205 make maildir uidvalidity change fatal
it's best to give the user a chance to fix it rather than completely
messing up the syncstate by re-enumerating the UIDs.
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
a3bd10c04d cleanup maildir error paths
don't try to unlock and close databases and files - this will happen a
moment later anyway, through cancelation or re-selection.
ironically, this plugs a memory leak, because an open main database is
used as a signal to close a temporary db in maildir_scan().
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
04ca97920d fix potential double free
the store may be discarded before we reach maildir_select() again, which
will leave us with a dangling pointer.
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
e71ad53b7f plug memory leak in maildir_store_msg() upon failure to acquire UID 2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
9c86ec3442 employ alternative scheme to finding messages by TUID
instead of SEARCHing every single message (which is slow and happens to
be unreliabe with M$ Exchange 2010), just FETCH the new messages from
the mailbox - the ones we just appended will be amongst them.
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
b4cef554fc clearer debug msg 2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
06b303da88 use ATTR_PRINTFALIKE 2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
7c815538ab fix line wrapping before info messages
unless an info message is explictly marked as a continuation, it must
terminate any pending line (typically the progress information) first.

debug output is not affected, as it is mutually exclusive with info
output, and no debug lines are left unterminated outside clear scopes.
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
2aae866e80 remove Ontty flag
i can't figure out why i added it in the first place. it doesn't seem to
make any sense ...
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
6b3b6f12bb centralize flushing of unfinished debug lines 2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
d2bed4990d unify error reporting
- introduce sys_error() and use it instead of perror() and
  error(strerror()) in all expected error conditions
- perror() is used only for "something's really wrong with the system"
  kind of errors
- file names, etc. are quoted if they are not validated yet, so e.g. an
  empty string becomes immediately obvious
- improve and unify language
- add missing newlines
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
dee9f51096 don't complain about disappearing temp files
some other process might be cleaning up concurrently ...
2012-09-01 21:15:07 +02:00
Oswald Buddenhagen
ae85e455d3 enlarge receive buffer considerably
the tiny buffer makes no sense in the face of huge payloads and now
additionally masses of replies from pipelined commands.
2012-09-01 21:15:06 +02:00
Oswald Buddenhagen
256a147945 compile with -ansi -pedantic on gcc
greatly helps portability ...
2012-09-01 21:15:06 +02:00
Oswald Buddenhagen
96eaeb428d define _GNU_SOURCE on the command line
that way it is already set in configure and can thus be used by tests.
2012-09-01 21:14:53 +02:00
Oswald Buddenhagen
faeb9b5bf7 centralize imap_cmd_refcounted_state refcount decrementing
no else branches remain, so the if() can be put into
imap_refcounted_done()
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
f5086f735c get rid of redundant literal_pending state flag 2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
bd93d689db fully asynchronous IMAP operation
- asynchronous sockets using an event loop
  - connect & starttls have completion callback parameters
  - callbacks for notification about filled input buffer and emptied
    output buffer
- unsent imap command queue
  - used when
    - socket output buffer is non-empty
    - number of commands in flight exceeds limit
    - last sent command requires round-trip
    - command has a dependency on completion of previous command
  - trashnc is tri-state so only a single "scout" trash APPEND/COPY is
    sent at first. a possibly resulting CREATE is injected in front of
    the remaining trash commands, so they can succeed (or be cancel()d
    if it fails).
  - queue's presence necessitates imap_cancel implementation
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
7867eb9009 add simple mainloop implementation
not used so far
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
a55354516b move responsibility for closing sockets on error to user
the only user being imap and the first thing in imap_cancel_store()
being a call to socket_close(), this code was pretty pointless anyway.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
802c99edcf make socket read/write error reporting callback-based
the functions still have synchronous return codes as well - this enables
early error returns without having to resort to refcounting.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
f1df2f40d1 decouple the filling of the read buffer from consuming it
this prepares the code for being called from a callback.

notably, this makes the imap list parser have a "soft stack", so the
recursion can be suspended at any time.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
886cd03e37 centralize imap_cmd disposal 2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
f8d73ac346 make socket_write() capable of taking ownership of the buffer
that way the user code doesn't have to free it any more.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
8a72d204c9 change socket_write() return code semantics
instead of returning a write()-like result, return only a binary status
code - write errors are handled internally anyway, so user code doesn't
have to check the write length.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
a85013d6ff make IMAP pipeline depth configurable
currently, this affects only "clustered" message listings and
flag stores.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
a266f28f1c cancel submitted commands when canceling store
we already have some minimal asynchronicity, so there might be commands
in flight when a fatal error comes in.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
171f7d6cd3 Socket_t + buffer_t => conn_t
remove the layering, in favor of a "buffered connection" abstraction.
2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
3447694c2b security fix: failure to load the certificate file is *not* OK ... 2012-09-01 16:03:36 +02:00
Oswald Buddenhagen
ef41349035 move socket code to a separate file
this makes the layering more obvious
2012-09-01 16:03:35 +02:00
Oswald Buddenhagen
d1ee94f02c move greeting response handling into get_cmd_result()
the primary purpose of this is getting rid of the "free-standing"
buffer_gets() call.
2012-09-01 16:03:35 +02:00
Oswald Buddenhagen
584e51ed7d docs
- insert "separator comments" between driver entry points
- document driver API
- document sync_vars_t parts that are stored in the sync state header
2012-09-01 16:03:35 +02:00
Oswald Buddenhagen
2ab689b3df make imap_exec() result reporting callback-based
this makes the IMAP command submission interface asynchronous.

the functions still have synchronous return codes as well - this enables
clean error return paths. only when we invoke callbacks we resort to
refcounting.

as a "side effect", properly sequence commands after CREATE resulting
from [TRYCREATE].
2012-09-01 16:03:35 +02:00
Oswald Buddenhagen
e5d323cc47 rely on the maildir's existence with "SyncState *"
now that we open the box first, we know that it will exist at this
point.
2012-09-01 16:03:35 +02:00