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313 Commits

Author SHA1 Message Date
Oswald Buddenhagen
62a60997c3 make use of strptime() portable 
it does not (officially) support the %z conversion, so re-implement that
part by hand.
 2013-12-01 13:36:26 +01:00
Oswald Buddenhagen
55e65147df fix compilation with older gcc versions 
the warning suppression pragma within function scope is apparently a new
thing.
as i don't want to disable the check for the entire function (even if
this currently would make no difference), just use a wrapper function
to suppress the format string check.
 2013-12-01 13:36:26 +01:00
Oswald Buddenhagen
b570c17766 deal with messages disappearing between being listed and fetched 2013-09-26 09:17:08 +02:00
Oswald Buddenhagen
2213d6976c support backslashes and quotes in quoted IMAP strings 
the RFCs require it - well hidden in the BNF at the bottom.

patch somewhat inspired by "guns" <self@sungpae.com>.
 2013-09-26 09:17:08 +02:00
Oswald Buddenhagen
c0bf867669 make next_arg() more readable & efficient 2013-09-26 09:17:08 +02:00
Oswald Buddenhagen
0b59ee0df3 support multi-character path separators 
this applies to both the IMAP PathDelimiter (which is needed by Lotus
Domino), as well as the Flatten-ed separators.
 2013-08-11 10:20:02 +02:00
Oswald Buddenhagen
1b67c49965 CHECK before FETCH after STORE 
m$ exchange does not seem to update the index in time otherwise.
 2013-08-11 10:20:02 +02:00
Oswald Buddenhagen
eb1f10762f added sync support for the arrival date of messages 
initial patch by Marc Hoersken <info@marc-hoersken.de>
 2013-08-03 18:54:34 +02:00
Oswald Buddenhagen
6dfccb76a5 be somewhat stricter about the LIST response syntax 
the first token *must* be a list.
 2013-07-27 18:40:19 +02:00
Oswald Buddenhagen
a0dc37339e allow the mailbox names in LIST responses to be literals 
Lotus Domino seems to send them like that.
 2013-07-27 18:40:16 +02:00
Oswald Buddenhagen
fc77feacc5 make parse_list() callback based 
this allows us to parse IMAP literals ({}) in every list.
 2013-07-27 18:39:39 +02:00
Oswald Buddenhagen
bf049d6466 add PassCmd option to query IMAP password dynamically 
inspired by patches by
Aurélien Francillon <aurelien.francillon@eurecom.fr>,
Martin Stenberg <martin@gnutiken.se> and
sbfnk@users.sf.net.
 2013-07-27 11:31:31 +02:00
Oswald Buddenhagen
ca3a319e60 update copyrights 2013-04-20 16:57:16 +02:00
Oswald Buddenhagen
4ab55dc468 don't try to fetch status of minus one message 
this would happen if we were trying to find newly pushed messages, but
none actually arrived.
as imap's ranges are not ordered, this would actually fetch one message.
 2013-03-30 16:46:18 +01:00
Oswald Buddenhagen
fbfcfea5dc fix cram-md5 authentication 
we need to send a newline after the response for imap to grok it.
 2013-03-23 10:38:27 +01:00
Oswald Buddenhagen
3363ad0f11 fix crashes in imap_open_store() error paths 
it's not a good idea to invoke imap_open_store_bail() twice, either ...
 2013-03-23 10:34:51 +01:00
Oswald Buddenhagen
fbba8f1cda add support for (disabling) TLS v1.1 and v1.2 2013-02-10 09:56:33 +01:00
Oswald Buddenhagen
c7ebe2da95 more error checking of IMAP responses 
REFMAIL: CA+Tk8fyu-6bwXq=ee2BgcKK_13m9S0RS+-0DhM=_jFqSKCH8aw@mail.gmail.com
 2012-10-16 09:37:19 +02:00
Oswald Buddenhagen
8dbb3fe7a9 flush stdout more 
to make sure it is timely written and not interleaved with stderr even
when when redirected.
 2012-09-22 17:48:09 +02:00
Oswald Buddenhagen
16e5aade3f store config error status in conffile_t object 
this makes passing it around more straight-forward
 2012-09-15 11:46:42 +02:00
Oswald Buddenhagen
725a122e91 make config parser a bit more careful about quotes 
the parsing is more shell-like now:
- quoted and unquoted parts can be mixed in one argument
- the hashmark can be meaningfully quoted
 2012-09-15 11:24:57 +02:00
Oswald Buddenhagen
f11504aa07 update copyrights 
make the wrapper's help string also mention copyrights pertaining only
to the actual syncer, as this is the only string many people will ever
see.
 2012-09-01 21:15:53 +02:00
Oswald Buddenhagen
d4c786823d replace FSF address with something more ... contemporary 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
2585dd3324 add support for hierarchical mailboxes 2012-09-01 21:15:18 +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
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
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
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
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
256a147945 compile with -ansi -pedantic on gcc 
greatly helps portability ...
 2012-09-01 21:15:06 +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
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
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
05fd0b9970 split out drv->load() from drv->select() 2012-09-01 16:02:50 +02:00
Oswald Buddenhagen
7addc3bea8 minor cleanup: use ctx->gen instead of gctx for consistency 2012-07-30 01:21:32 +02:00
Oswald Buddenhagen
ea951a697f fix error paths wrt sync drivers, take 2 
synchronous error codes which are passed through callbacks aren't a
particularly good idea, after all: latest when the callback does stuff
which does not concern the caller, the return code becomes ambiguous.
instead, protect the sync_vars object with a refcount when invoking
driver functions from loops, as the callbacks they call could invalidate
the object and we would have no way of knowing that the loop should be
aborted prematurely. the upcoming async imap driver will also need a
refcount to protect the cancelation marker of the imap socket dispatcher
loop.
 2012-07-30 01:21:32 +02:00
Oswald Buddenhagen
b0bbd23512 replace DRV_STORE_BAD with a separate bad_callback() 
that way we don't have to piggy-back (possibly asynchronous) fatal
errors to particular commands.

internally, the drivers still use synchronous return values as well,
so they don't try to access the invalidated store after calling back.
 2012-07-30 01:21:31 +02:00
Oswald Buddenhagen
9554026443 make drv->cancel()'s callback have no status code 
this function is not going to actually execute any commands, so it
makes no sense for the callback to have a status code.
 2012-07-29 12:25:24 +02:00
Oswald Buddenhagen
06ccac1fdd always use return value from get_cmd_result() 
once we have callback-based error reporting, this will ensure that we
don't operate on invalidated data structures.
 2012-07-22 17:27:42 +02:00
Oswald Buddenhagen
121ce76e46 make response code parse failure of untagged OK/NO/BYE/BAD non-fatal 
as such, it does not disrupt the data stream
 2012-07-22 17:27:42 +02:00
Oswald Buddenhagen
4d4de6e275 remove redundant use_ssl variables 
just use the presence of an SSL object as an indicator. if something
goes wrong during the ssl handshake or certificate validation, the
socket must be immediately closed anyway.
 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
17dc64b414 after [TRYCREATE], just resend the same command instead of cloning it 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
83efbe327d use return values from correct set in get_cmd_result() 
DRV_OK == RESP_OK, so this worked by accident
 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
99cc328f17 do away with the dreaded rcaps hack 
don't pretend that the server has no literal+ for the time of the
first relevant command's synchronous execution. instead, enable the
lower layer to do the processing by telling it for which commands
trashnc ("trash's existence not confirmed") is relevant.
 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
1545ed90a0 purge imap_store_t::currentnc vestiges 
we always actually open the mailbox before appending to it, so we
obviously know that it exists - that's why the code was already
commented out. changing this assumption would significantly complicate
matters for little gain, so let's just assume it won't happen.

consequently, also don't set param.create when appending to regular
mailboxes.
 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
c66afdc0a8 move setting of ctx->listed outside the drivers 
it's essentially an external state flag
 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
61d98c5a1d fix a bunch of warnings 2012-07-07 18:00:47 +02:00
Oswald Buddenhagen
4afd31a457 avoid preprocessor warnings on missing features: #if => #ifdef 2011-03-27 12:06:41 +02:00
Oswald Buddenhagen
cf6a7b4d18 less bizarre code 
we know that there is only one command in progress, so there
is no need to employ tricks to access the last command.
 2011-03-27 11:54:48 +02:00
Oswald Buddenhagen
7e1c16ae02 make cram() sane 
- don't silently fail in release mode (expression with side effects
  inside assert())
- save some redundand strlen()s by not throwing away known lengths
- reorganize the code for legibility
 2011-03-27 11:54:48 +02:00
Oswald Buddenhagen
2c729bf9e6 don't leak SSL objects 2011-03-27 11:54:45 +02:00
Oswald Buddenhagen
d637772339 turns out, free(NULL) is just fine ... 2010-11-14 16:44:50 +01:00
Oswald Buddenhagen
e1fa867423 fix UIDNEXT handling 
UIDNEXT *can* be legally zero, so deal with it.

-REFMAIL: 4CA62BA1.4020104@lemma.co.uk
 2010-10-03 14:33:24 +02:00
Oswald Buddenhagen
5ade279839 don't hang after failed start_tls() 
we'd send a LOGOUT command in plain text while the server was already
expecting an encrypted command, which would typically lead to waiting
for more data and thus an indefinite hang.
so close the socket immediately instead of letting the normal shutdown
path take care of it.
inspired by a patch by Steven Flintham.

-REFMAIL: 4C9AB98E.3000400@lemma.co.uk
 2010-10-03 12:37:59 +02:00
Oswald Buddenhagen
70e87eb99e remove useless message 
don't complain about missing greeting response - we already complained
about an unexpected EOF anyway.
 2010-10-03 12:37:59 +02:00
Oswald Buddenhagen
90a38ea810 assert valid file handles 
i've seen error logs of the type
  SSL_write: Bad file descriptor
and i simply can't nail it, so go for some more drastic measures.
 2010-10-03 12:37:59 +02:00
Oswald Buddenhagen
72fd2aafb7 formatting 2010-10-03 12:37:59 +02:00
Oswald Buddenhagen
122e09fe60 beautify error messages 
don't print the error number - we print the error string anyway, so it
adds no value.
add some whitespace to the messages as well.
 2010-10-03 12:37:10 +02:00
Oswald Buddenhagen
db2bbbfef8 fix uninitialized variable read 
this is basically a security fix for nonsensical configurations:
if the specified CertificateFile did not contain any certificates,
we *might* have accepted an arbitrary server certificate.
 2010-04-05 13:06:58 +02:00
Oswald Buddenhagen
da39690aec fix compile with SSL on Mac OS X 
patch by Remko Tronçon <remko@el-tramo.be>
BUG: 2126899
 2010-02-07 22:31:11 +01:00
Oswald Buddenhagen
e6a356ffc7 add extra verbose mode which dumps the message contents 
i needed that to debug the line ending issues. maybe it will find other
uses as well ...
 2010-02-06 10:49:57 +01:00
Oswald Buddenhagen
ce45692ca5 refactoring. main part is killing struct imap_cmd_cb as such. 
issue_imap_cmd is split into new_imap_cmd and submit_imap_cmd, so the
command can be parametrized after it was instanciated.
 2008-08-31 20:14:59 +00:00
Oswald Buddenhagen
92914b37cc deal with UIDVALIDITY of 0 properly. 
-REF: 20080822094543.GA3528@ugly.local
 2008-08-23 07:54:00 +00:00
Oswald Buddenhagen
0d8bce1675 give the implicitly created imap account config the name of the store. 2008-04-13 09:56:44 +00:00
Oswald Buddenhagen
262999d092 make ssl certificate handling much more useful: 
- system-wide ca certs are auto-loaded
- private certs are accepted even if they are self-signed
 2008-04-13 09:51:27 +00:00
Oswald Buddenhagen
06521da30d - accept unset CertificateFile 
- print the certificate's fingerprint
- make the certificate acceptance prompt much less scary
 2008-04-12 08:58:50 +00:00
Oswald Buddenhagen
89519e343c ignore system flag extensions (\X-...) 2008-04-12 08:13:44 +00:00
Oswald Buddenhagen
2b37288e8d don't use #ifdef inside htons() arguments - it can be a macro. 
-REF: <lyy7ezyjah.fsf@gfn.org>
CCMAIL: Scott Gifford <sgifford@suspectclass.com>
 2007-09-22 08:45:41 +00:00
Oswald Buddenhagen
625f592fb7 fix crash due to uninited var when parsing IMAPServer. Thanks to 
CCMAIL: Antoine Reilles <tonio@NetBSD.org>
REF: <20070118182534.GA22288@arcelot.loria.fr>
 2007-02-10 15:37:46 +00:00
Oswald Buddenhagen
023d3ee577 fix error paths wrt sync drivers 2006-12-09 10:39:30 +00:00
Oswald Buddenhagen
617d1a6e49 memmove for overlapping mem copies. 2006-08-10 06:33:18 +00:00
Oswald Buddenhagen
4bf58c3e97 don't crash in imap driver when Host is not specified. 2006-05-28 16:03:52 +00:00
Oswald Buddenhagen
dbbab78881 un-document "Host imaps:[...]" syntax and introduce new option UseIMAPS 
instead.
apply ted's patch to support UseIMAPS in conjunction with Tunnel.
document that SSLv2 is No Good (TM).
 2006-05-28 15:43:58 +00:00
Oswald Buddenhagen
67b714ee0e move assigning default port to the place of use 2006-05-28 13:38:14 +00:00
Oswald Buddenhagen
168e5f3282 make the driver model, sync_chans() and sync_boxes() fully async. 
async drivers to follow ...
 2006-03-21 20:03:21 +00:00
Oswald Buddenhagen
b7389cb36f do not repeatedly get namespace from server. 2006-03-20 20:39:06 +00:00
Oswald Buddenhagen
340bfcc4a8 handle socket() failure and correctly report gethostbyname() failure. 2006-03-20 20:34:32 +00:00
Oswald Buddenhagen
3e3cf3ac9a update copyrights 2006-03-20 20:16:22 +00:00
Oswald Buddenhagen
7f9ece8e7e move whole responsibility for recycling open stores/server connections 
to the drivers.
 2006-03-20 19:38:20 +00:00
Oswald Buddenhagen
47e592b603 keep the result of driver->list() and a flag whether it is valid in the store. 2006-03-20 19:27:38 +00:00
Oswald Buddenhagen
492ca8d332 whitespace and code verbosity 2006-03-20 17:21:07 +00:00
Oswald Buddenhagen
31fc41a32c merge imap_t into imap_store_t - there is really no point in having them 
separated.
 2006-03-20 15:01:48 +00:00
Oswald Buddenhagen
d7126dca5e "fprintf( stderr," => "error(". new functions debugn() and infon() 
for messages with missing newline; warn() and error() act upon this.
 2006-03-19 11:29:12 +00:00
Oswald Buddenhagen
bb7bbcf5b1 make config parsing more robust against bogus input and report errors 
more clearly.
 2006-03-19 10:44:53 +00:00
Oswald Buddenhagen
1453e61840 update fsf's postal address. i think it's sort of useless nowadays 
anyway, but heck ...
 2006-02-09 17:44:22 +00:00
Oswald Buddenhagen
850addecd5 wrap message storing into transactions. nice side effect: drivers don't 
need to deal with line end conversion any move.
 2006-02-03 21:33:43 +00:00
Oswald Buddenhagen
a1a5a817bb merge Quiet, Verbose & Debug into DFlags 2006-01-29 14:46:16 +00:00
Oswald Buddenhagen
a1c402678c split driver->prepare into ->prepare_opts and ->prepare_paths 2006-01-29 11:22:45 +00:00
Oswald Buddenhagen
4e983506d3 #include limits.h (for INT_MAX) 
REF: <a8e45e1b0601241753j1e14cc1cm3fc3c65c7acb0c1b@mail.gmail.com>
 2006-01-25 06:35:19 +00:00
Oswald Buddenhagen
d414d0aae2 solaris 10 fix: use sys/filio.h for FIONREAD. untested. 
REF: <20060111215014.GA601@49.180.97-84.rev.gaoland.net>
 2006-01-12 06:36:44 +00:00
Oswald Buddenhagen
25db6a3c31 revert 1.8 - what was i smoking?! the CREATE argument is already quoted; 
we just extracted it from the previous command.
 2005-12-17 13:47:51 +00:00
Oswald Buddenhagen
d2753c4188 64-bit cleanness 2005-09-21 16:14:05 +00:00
Oswald Buddenhagen
bf4266eadc quote CREATE argument 2005-03-28 10:43:31 +00:00
Oswald Buddenhagen
e8c769ea76 ignore user-defined flags (for now). 
also, split off the backslash from the "core" flag names.
 2004-10-17 15:34:53 +00:00
Oswald Buddenhagen
e75ebf75f6 fix segfault due to wrong pointer being passed to parse_response_code. 
inspired by Raimar Döffinger
 2004-10-17 09:00:15 +00:00
Oswald Buddenhagen
6741bc94d9 remove spurious crlf during cram auth. not sure that this instance of 
socket_write should be (re)moved, but as long as the .cont callback is
used only for this ...
investigation & patch by Mike Delaney.
 2004-10-17 08:30:02 +00:00
Oswald Buddenhagen
e0cc45044f stdarg.h at the right places 2004-09-20 11:28:33 +00:00
Oswald Buddenhagen
af0b75a5dc stddef.h for offsetof 2004-09-08 16:14:12 +00:00
Oswald Buddenhagen
1b75236135 fix -C for imap mailboxes: 
- SELECT does not return [TRYCREATE]
- fix bit field truncation
 2004-08-13 11:03:12 +00:00
Oswald Buddenhagen
130664b622 The Big Rewrite. too many change to list them all. 
as opposed to earlier threats, BerkDB was not entirely dropped; i
suppose the isync 0.7 -> 0.8 change had a reason, so i added an
alternative UID storage scheme.
note that BDB 4.0 is not sufficient, as the db->open function changed in
an incompatible way ...

i updated the debian packaging except for a changelog entry.
note that i removed the upgrade blurb, as upstream now has a smooth
upgrade path down to at least isync 0.4.
 2004-03-27 16:07:20 +00:00