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NEWS
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v0.4.13 18-03-2016 Stephan Bosch <[email protected]>
* redirect action: Added the list-id header to the duplicate ID for mail loop
prevention. This means that the message sent directly to the user and the
message coming through the mailing list itself are treated as different
messages by the loop detection of the redirect command, even though their
Message-ID may be identical.
* Changed the Sieve number type to uint64_t, which means that Sieve numbers
can now technically range up to 2^64. Some other Sieve implementation
allowed this, making this change necessary for successful migration.
+ Implemented the sieve_implicit_extensions setting. The extensions listed in
this setting do not need to be enabled explicitly using the Sieve "require"
command. This behavior directly violates the standard, but can be necessary
for compatibility with some existing implementations of Sieve. Do not use
this setting unless you really need to!
- redirect action: Made mail loop detection more robust by forcibly adding a
Message-ID header if it is missing.
- Prevent logging a useless "script not found" error message for LDAP scripts
for which the entry exists but no attribute containing a script. This is not
necessarily an error.
- extprograms plugin: Changed the communication channel between parent and
child process for a directly forked program from a socketpair to a double
pipe. Linux does not support /dev/stdin, /dev/stdout and friends for
sockets. For some shell program authors this may be confusing, so that is
why it is changed. When using the script service, these device nodes are
still not usable though.
v0.4.12 06-02-2016 Stephan Bosch <[email protected]>
+ Implemented the Sieve extracttext extension (RFC 5703; Section 7). It is now
possible to extract body text from a message into a variable.
* Increased ABI version due to changes in the Sieve interpreter's object
definitions.
- multiscript: Fixed bug in handling of (implicit) keep; final keep action was
always executed as though there was a failure. This caused the keep action
to revert back to the initial message, causing editheader actions to be
ignored.
- managesieve-login: Fixed proxy to allow SASL mechanisms other than PLAIN.
Before, the proxy would fail if the server did not support the PLAIN
mechanism.
- ldap storage: Prevent segfault occurring when assigning certain (global)
configuration options.
v0.4.11 08-01-2016 Stephan Bosch <[email protected]>
- Sieve mime extension: Fixed the header :mime :anychild test to work properly
outside a foreverypart loop.
- Several fixes in message body part handling:
- Fixed assert failure occurring when text extraction is attempted on a
empty or broken text part.
- Fixed assert failure in handling of body parts that are converted to text.
- Fixed header unfolding for (mime) headers parsed from any mime part.
- Fixed trimming for (mime) headers parsed from any mime part.
- Fixed erroneous changes to the message part tree structure performed when
re-parsing the message.
- LDA Sieve plugin: Fixed logging of actions; sometimes the configured log
format was not followed.
- LDA Sieve plugin: Fixed bug in error handling of script storage
initialization.
- Sieve Extprograms plugin: Ignored ENOTCONN error in shutdown(fd, SHUT_WR)
call.
- Fixed duplication of discard actions in the script result. Each discard was
counted as a separate action, which means that action limit would be crossed
too early.
- Made sure that quota errors never get logged as errors in syslog.
- Fixed handling of implicit keep for a partially executed transaction that
yielded a temporary failure.
- Fixed handling of global errors. If master and user error handler were
identical, in some cases the log message could be lost.
- Fixed AIX compile issue in message body parser.
v0.4.10 13-12-2015 Stephan Bosch <[email protected]>
+ Implemented the Sieve mime and foreverypart extensions (RFC 5703). These
are fully implemented. The interaction with the editheader extension needs
some work, but this should not influence most uses; i.e., changes by the
editheader extension are not always visible using foreverypart/mime.
+ Sieve body extension: Properly implemented the `:text' body transform. It
now extracts text for HTML message parts.
+ Sieve enotify extension: mailto method: Implemented the
sieve_notify_mailto_envelope_from setting. This allows configuring the
source of the notification sender address for e-mail notifications. This is
similar to what already can be configured for redirect.
+ Added a sieve_enabled (defaults to 'yes') setting that allows explicitly
disabling Sieve processing for particular users. This used to be possible by
setting `sieve=', but ever since the sieve_before, sieve_after and
sieve_default settings were added, this method was not reliable anymore.
- variables extension: Fixed handling of empty string by the `:length' set
modifier. An empty string yielded an empty string rather than "0".
- Fixed memory leak in the Sieve script byte code dumping facility. Extension
contexts were never actually freed.
- Fixed handling of implicit keep when the last Sieve script is a global one.
In that case the implicit keep action was executed in global context, which
could mean that trivial (quota) errors ended up in the system log file,
rather than the user log file.
- doveadm sieve plugin: Fixed crashes caused by incorrect context allocation
in the sieve command implementations.
v0.4.9 04-10-2015 Stephan Bosch <[email protected]>
* Properly implemented checking of ABI version for Sieve interpreter plugins,
much like Dovecot itself does for plugins. This will prevent plugin ABI
mismatches.
+ Implemented a vnd.dovecot.environment extension. This builds upon the
standard environment extension and adds a few more environment items, such
as username and default mailbox. It also creates a variables namespace so
that environment items can be accessed directly. I am still thinking about
more environment items that can be added.
+ Sieve extprograms plugin: Made line endings of the input passed to the
external programs configurable. This can be configured separately for each
of the three extensions.
+ ManageSieve: Implemented proxy XCLIENT support. This allows the proxy to
pass client information to the back-end.
- ManageSieve: Fixed an assert failure occurring when a client disconnects
during the GETSCRIPT command.
- doveadm sieve plugin: Fixed incorrect initialization of mail user. This
caused a few memory leaks.
- sieve-filter command line tool: Fixed handling of failure-related implicit
keep when there is an explicit default destination folder. This caused
message duplication.
- lib-sieve: Fixed bug in RFC5322 header folding. Words longer than the
optimal line length caused empty lines in the output, which would break the
resulting message header. This surfaced in References: headers with very
long message IDs.
v0.4.8 15-05-2015 Stephan Bosch <[email protected]>
* LDA Sieve plugin: Dovecot changed the deliver_log_format setting to include
%{delivery_time}. This prompted changes in Pigeonhole that make this release
dependent on Dovecot v2.2.17.
+ Implemented magic to make sieve_default script visible from ManageSieve
under a configurable name. This way, users can see the default rules, edit
them and store a private adjusted version. This could also be achieved by
copying the default script into the user's script storage, but updates to
the global sieve_default script would be ignored that way.
+ ManageSieve: Implemented support for reporting command statistics at
disconnect. Statistics include the number of bytes and scripts uploaded/
downloaded/checked and the number of scripts deleted/renamed.
- Fixed problem in address test: erroneously decoded mime-encoded words in
address headers.
- extprograms plugin: Fixed failure occurring when connecting to script
service without the need to read back the output from the external program.
- Fixed bug in script storage path normalization occurring with relative
symbolic links below root.
- Fixed and updated various parts of the documentation
- ManageSieve: Used "managesieve" rather than "sieve" as login service name,
which means that all managesieve-specific settings where ignored.
- Managesieve: Storage quota was not always enforced properly for scripts
uploaded as quoted string. Nobody uses that, but it is allowed in the
specification and we support it, so it should work properly.
v0.4.7 19-03-2015 Stephan Bosch <[email protected]>
* editheader extension: Made protection against addition and deletion of
headers configurable separately. Also, the `Received' and `Auto-Submitted'
headers are no longer protected against addition by default.
* Turned message envelope address parse errors into warnings.
* The interpreter now accepts non-standard domain names, e.g. containing '_'.
+ Implemented the Sieve index extension (RFC 5260).
+ Implemented support for the mboxmetadata and servermetadata extensions
(RFC 5490).
+ Implemented new sieve commands for the doveadm command line utility. These
commands are currently limited to ManageSieve operations, but the other
current sieve tools will be migrated to doveadm in the near future as well.
+ Added more debug output about binary up-to-date checking.
+ Added script metadata to binary dump output.
- Fixed Sieve script binary up-to-date checking by normalizing the script
location.
- The Sieve interpreter now flushes the duplicate database during start phase
of result execution rather than commit phase. This makes sure locks on the
duplicate database are released as soon as possible, preventing contention.
- Performed a few optimizations in the lexical scanner of the language.
- Fixed bug in `:matches' match-type that made a pattern without
wildcards match as if there were a '*' at the beginning.
- Fixed crash in validation of the string parameter of the comparator tag.
- extprograms extension: Made sure supplemental group privileges are also
dropped. This was a problem reported by Debian lintian.
- Fixed bug in handling of binary errors for action side-effects and message
overrides.
- file script storage: Restructured storage initialization to address
backwards compatibility issues.
- dict script storage: Fixed small memory allocation bug.
v0.4.6 02-11-2014 Stephan Bosch <[email protected]>
- After make distclean the distributed tarball would fail to recompile.
This causes problems for some distribution builds.
v0.4.5 30-10-2014 Stephan Bosch <[email protected]>
+ Added a Pigeonhole version banner to doveconf output. This way, future
bug reports will also include Pigeonhole version information.
- Fixed handling of implicit keep. Last version erroneously reported that
implicit keep succeeded after an earlier failure, while it in fact had
failed. Particularly occurred for mailbox quota errors.
- Fixed segfault occurring on SunOS systems when there is no active script.
v0.4.4 28-10-2014 Stephan Bosch <[email protected]>
* Added support for Japanese mail addresses with dots at non-standard places
in localpart.
* Changed handling of ENOSPACE into a normal temporary failure and added
handling of ENOQUOTA as a user error.
* Restructured result execution, so that all actions which involve mail
storage are always committed before all others.
+ Implemented support for generic Sieve storages. Using alternative storages
now also possible for sieve_before/sieve_after.
+ Implemented storage driver for retrieving Sieve scripts from LDAP. This
currently cannot be used with ManageSieve.
+ Implemented sieve_redirect_envelope_from setting, which allows configuring
the envelope sender of redirected messages.
- Fixed handling of mail storage errors occurring while evaluating the input
message.
- managesieve-login:
- Removed bogus ALERT response code returned for AUTHENTICATE command.
- Fixed handling of invalid initial response argument to AUTHENTICATE
command.
- Fixed handling of stream errors in lexical scanner.
- Fixed handling of SMTP errors. Permanent and temporary errors were mixed up.
- Fixed several problems reported by CLang 3.4.
- duplicate extension: Fixed erroneous compile error about conflicting tags
when `:handle' argument was used last.
- relational extension: Fixed error handling of `:value' match.
- editheader extension: Fixed header unfolding and header iteration.
- mailbox extension: Fixed the `:create' tag, which erroneously subscribed an
existing folder.
- extprograms plugin: Fixed handling of error codes.
- doveadm-sieve plugin: Fixed several bugs. Synchronization of symbolic link
in the file storage should now also work properly.
v0.4.3 12-05-2014 Stephan Bosch <[email protected]>
* Editheader extension: Made control characters allowed for editheader, except
NUL. Before, this would cause a runtime error.
+ Upgraded Dovecot-specific Sieve "vnd.dovecot.duplicate" extension to match
the new draft "duplicate" extension.
- Fixed sieve_result_global_log_error to log only as i_info in administrator
log (syslog) if executed from multiscript context.
- Sieve redirect extension: Adjusted loop detection to show leniency to resent
messages.
- Sieve include extension: Fixed problem with handling of duplicate includes
with different parameters :once or :optional.
- Sieve spamtest/virustest extensions: Tests were erroneously performed
against the original message. When used together with extprograms filter to
add the spam headers, the changes were not being used by the spamtest and
virustest extensions.
- Deprecated Sieve notify extension: Fixed segfault problems in message string
substitution.
- ManageSieve: Fixed active link verification to handle redundant path slashes
correctly.
- Sieve vacation extension:
- Fixed interaction of sieve_vacation_dont_check_recipient with
sieve_vacation_send_from_recipient setting.
- Fixed log message for discarded response.
- Sieve extprograms plugin:
- Forgot to disable the alarm() timeouts set for script execution.
- Fixed fd leak and handling of output shutdown.
- Fixed 'Bad filedescriptor' error occurring when disconnecting script
client.
- Made sure that programs are never forked with root privileges.
v0.4.2 26-09-2013 Stephan Bosch <[email protected]>
* Incompatible change in Sieve doveadm plugin: the root attribute for
Sieve scripts is changed. Make sure that you update both sides of a dsync
setup simultaneously when Sieve is involved, otherwise synchronization will
likely fail.
+ Added support for sending Sieve vacation replies with an actual sender,
rather than the default <> sender. Check the updated
doc/extensions/vacation.txt for more information.
- Fixed a binary code read problem in the `set' command of the Sieve variables
extension. Using the set command with a modifier and an empty string value
would cause code corruption problems while running the script.
- Various fixes for doveadm-sieve plugin, mostly crashes. These include a fix
for the `Invalid value for default sieve attribute' problem.
- Various fixes for compiler and static analyzer warnings, e.g. as reported
by CLang and on 32 bit systems.
- Fixed the implementation of the new :options flag for the Sieve include
extension.
- Fixed potential segfault bug at deinitialization of the lda-sieve plugin.
- Fixed messed up hex output for sieve-dump tool.
v0.4.1 03-06-2013 Stephan Bosch <[email protected]>
+ Added support for handling temporary failures. These are passed back to
LDA/LTMP to produce an appropriate response towards the MTA.
- Sieve storage: Removed PATH_MAX limitation for active symlink. This caused
problems for GNU/Hurd.
- Fixed line endings in X-Sieve headers added by redirect command.
- ManageSieve: Fixed '[' ']' stupidity for response codes (only happened
before login).
- Fixed setting name in example-config/conf.d/20-managesieve.conf.
- Sieve extprograms plugin: Fixed interaction between pipe command and remote
script service. The output from the script service was never read, causing a
broken pipe error at the script service. Apparently, this was broken since
the I/O handling for extprograms was last revised.
- Fixed assertion failure due to datastack problem in message header
composition.
v0.4.0 09-05-2013 Stephan Bosch <[email protected]>
+ Added doveadm-sieve plugin that provides the possibility to synch Sieve
scripts using doveadm sync along with the user's mailboxes.
+ Added the Sieve extprograms plugin to the main Pigeonhole package. It is
still a plugin, but it is now included so that a separate compile is no
longer necessary and distributors are likely to include it. The extprograms
plugin provides Sieve language extensions that allows executing
(administrator-controlled) external programs for message delivery,
message filtering and string manipulation. Refer to
doc/plugins/sieve_extprograms.txt for more information.
+ Added debug message showing Pigeonhole version at initialization. Makes it
very clear that the plugin is properly loaded.
+ Finished implementation of the Sieve include extension. It should now
fully conform to RFC 6609. The main addition is the new :optional tag which
makes the include command ignore missing included scripts without an error.
+ Finished implementation of the Sieve environment extension as much as
possible. Environment items "location", "phase" and "domain" now also
return a usable value.
v0.3.6 26-09-2013 Stephan Bosch <[email protected]>
- Fixed a binary code read problem in the `set' command of the Sieve variables
extension. Using the set command with a modifier and an empty string value
would cause code corruption problems while running the script.
- Various fixes for compiler and static analyzer warnings, as reported
by CLang.
- ManageSieve: Fixed '[' ']' stupidity for response codes (only happened
before login).
- Fixed setting name in example-config/conf.d/20-managesieve.conf.
- Fixed messed up hex output for sieve-dump tool.
v0.3.5 09-05-2013 Stephan Bosch <[email protected]>
- Sieve editheader extension: fixed interaction with the Sieve body extension.
If used together, the deleteheader action could fail after a body test was
performed.
- Test suite: fixed a time zone dependency in the Sieve date extension tests.
v0.3.4 06-04-2013 Stephan Bosch <[email protected]>
* Changed error handling to be less of a nuisance for administrators. Strictly
user-caused errors are only reported in user log. Some errors are logged as
info instead.
* Sieve: Changed behavior of redirect in case of a duplicate message delivery
or a mail loop. If a duplicate is detected the implicit keep is canceled,
as though the redirect was successful. This prevents getting local
deliveries. The original SMTP recipient is used when it is available to
augment the entry in the LDA duplicate database. This way, duplicates are
only detected when (initially) addressed to the same recipient.
+ Sieve vnd.dovecot.duplicate extension: added new features to the duplicate
test, making it possible to manually compose the key value for duplicate
checking. This extension is in the process of being standardized
(https://tools.ietf.org/html/draft-bosch-sieve-duplicate-01).
+ Sieve date extension: generate warning when invalid date part is specified.
- Sieve editheader extension: fixed crash occurring when addheader :last was
used.
- Sieve include extension: fixed missing error cleanup that caused a resource
leak.
- Sieve vacation extension: fixed determination of From: address for when
sieve_vacation_dont_check_recipient is active.
- Sieve tools: the -D option wasn't enabled and documented for all tools.
- Siev dict script storage: fixed potential segfault occurring when dict
initialization fails.
- ManageSieve: fixed bug in skipping of CRLF at end of AUTHENTICATE command.
- ManageSieve: fixed handling of unkown commands pre-login.
- Fixed compile on Mageia Linux.
v0.3.3 18-09-2012 Stephan Bosch <[email protected]>
- Fixed compile against installed Dovecot headers. This was broken by the
ld.gold fix in the previous release.
v0.3.2 18-09-2012 Stephan Bosch <[email protected]>
+ sieve-refilter tool: improved man page documentation by explicitly
specifying the syntax used for mailbox arguments.
+ Sieve: spamtest and virustest extensions: improved trace debugging of score
calculation.
+ Sieve: made error messages about exceeding the maximum number of actions
more verbose.
- Sieve tools: fixed problems with running as root: sievec and sieve-dump now
ignore mail_uid and mail_gid settings when run as root.
- Sieve: fixed bug in action accounting (for limit checking): increase action
instance count only when an action is actually created.
- Sieve: include extension: fixed namespace separation of :global and
:personal scripts.
- ManageSieve: fixed segfault bug triggered by CHECKSCRIPT command.
- Fixed linking with ld.gold.
- Fixed several Clang compile warnings and a few potential bugs.
v0.3.1 25-05-2012 Stephan Bosch <[email protected]>
* Added support for retrieving Sieve scripts from dict lookup. This means that
Sieve scripts can now be downloaded from a database. Compiled script
binaries are still put on disk somewhere if used. The INSTALL documentation
is updated with information on this new feature and the
(backwards-compatible) changes to the configuration. Note that his feature
is currently not supported for sieve_before/sieve_after or script management
through ManageSieve.
+ Incorporated the sieve_duplicate plugin into main Pigeonhole tree as a
normal extension (vnd.dovecot.duplicate). This Dovecot-specific extension
adds the ability to check for duplicate deliveries based on message ID.
Specification can be found in: doc/rfc/spec-bosch-sieve-duplicate.txt
+ Added support for specifying multiple sieve_before and sieve_after paths.
This adds much more flexibility to the multiscript configuration. One
application is to have user-specific Sieve scripts outside the user's
normal control through ManageSieve.
+ Added a "session ID" string for managesieve connections, available in
%{session} variable (analogous to Dovecot change).
- Fixed several small issues, including a few potential segfault bugs, based
on static source code analysis.
- ManageSieve: changed use of EPROTO error to EIO in ManageSieve string stream
implementation because it is apparently not known in BSD.
- Gave stamp.h.in (needed for autotools) some content to prevent it from
disappearing in patch files.
- Fixed bug that caused a SunStudio CC compile failure (reported by Piotr
Tarnowski).
v0.3.0 16-02-2012 Stephan Bosch <[email protected]>
* Renamed sieve_global_path setting to sieve_default for clarity. Old name is
still recognized for backwards compatibility. Support for the ancient (pre
v1.1) name for this setting "global_script_path" is now dropped.
* Added means to prohibit use of redirect action. Setting sieve_max_redirects
to 0 now means that redirect is disallowed instead of unlimited. Default
value remains four.
* Fixed interaction of Sieve include extension with ManageSieve. It is updated
to match new requirements in the draft include specification. Missing
included scripts are no longer an error at upload time.
* Updated RFC2822 header field body verification to exclude non-printing
characters (RFC5322). Only Sieve actions that can create unstructured header
values (currently enotify/mailto and editheader) are affected by this
change.
+ Completed sieve-filter tool to a useful state. The sieve-filter tool
provides a means to (re)filter messages in a mailbox through a Sieve script.
+ Implemented the Sieve editheader extension. It is now possible to add and
remove message headers from within Sieve.
+ ManageSieve: added support for reading quoted and literal strings as a
stream. Fixes support for handing large SASL responses (analogous to similar
changes in Dovecot). It is now also allowed to use a quoted string for the
PUTSCRIPT script argument.
+ Added code to cleanup tmp directory in Sieve storage directory (sieve_dir)
every once in a while.
+ Added support for substituting the entire message during Sieve processing.
This is used for the filter action provided by the new sieve_extprograms
plugin (provided separately for now). The filter action allows passing the
message through an external program.
+ Added support for restricting certain Sieve language extensions to
(admin-controled) global scripts. Restricted extensions can be configured
using the new sieve_global_extensions setting. This is particularly useful
for some of the Dovecot-specific (plugin-based) Sieve extensions, that can
be somewhat hazardous when under direct control of users (e.g.
sieve_extprograms).
v0.2.6 13-02-2012 Stephan Bosch <[email protected]>
* This release fixes unintentional behavior of the include extension. Included
scriptnames with a name like "name.sieve" would implicitly map to a script
file called "name.sieve" and not "name.sieve.sieve". Keep in mind that the
.sieve file extension has no meaning from within the Sieve language. A Sieve
script is always stored with an appended .sieve file extension, also when
the name already ends with a .sieve suffix.
IMPORTANT: Some installations have relied on this unintentional feature, so
check your script includes for issues before upgrading.
* Matched changes regarding auth_verbose setting in Dovecot. This means that
this release will only compile against Dovecot v2.0.18.
- Fixed problem in ManageSieve that caused it to omit a WARNINGS response code
when the uploaded script compiled with warnings.
- Made sure that locations of Sieve error never report `line 0'.
- Fixed potential segfault occurring when interpreter initialization fails.
v0.2.5 19-11-2011 Stephan Bosch <[email protected]>
+ Sieve vacation extension: made discard message for implicit delivery more
verbose
- The sieve-test tool: mixed up original and final envelope recipient in
implementation of command line arguments.
- Sieve vacation extension: resolved FIXME regarding the use of variables in
the :handle argument. Variables are now handled correctly.
- Sieve body extension: fixed handling of :content "message/rfc822". This now
yields the headers of the embedded message as required by the specification.
Handling of :content "multipart" remains to be fixed.
- LDA Sieve plugin: fixed problem with recipient_delimiter configuration. Now
falls back to global recipient_delimiter setting if
plugin/recipient_delimiter is not set.
v0.2.4 13-09-2011 Stephan Bosch <[email protected]>
+ Vacation extension: finally added support for using the original recipient
in vacation address check. It is also possible to disable the recipient
address check entirely. Check doc/vacation.txt for configuration
information.
+ Include extension: made limits on the include depth and the total number of
included scripts configurable. Check doc/include.txt for configuration
information.
+ Implemented ihave extension. This allows checking for the availability
of Sieve language extensions at 'runtime'. Actually, this is checked
at compile time. At runtime the interpreter checks whether extensions
that were not previously available are still unavailable. If the situation
changed, the script is re-compiled and the ihave tests are evaluated again.
+ Sieve: optimized compilation of tests that yield constant results (i.e.
known at compile tme), such as 'true' and 'false'. No code is produced
anymore for script sections that are never executed. Also, semantics
are not verified anymore in uncompiled script sections.
+ Made vnd.dovecot.debug extension available to the LDA plugin instead of
only the command line tools.
+ Sieve: redirect action now adds X-Sieve-Redirected-From header (mainly for
people using SPF/SRS).
- Sieve: fixed bug in handling flags and keywords; in case of error an
assertion was triggered.
- Script storage: improved handling of unconfigured user home directory.
Originally this would produce an unhelpful error message.
- Imap4flags extension: prevent forcibly enabling imap4flags when imapflags
is enabled.
- Fixed various -Wunused-but-set-variable compiler warnings.
- Include extension: forgot to check variable identifier syntax for 'global'
command.
- Sieve: fixed debug mode; no messages were logged in some situations.
- sievec tool: forgot to enable -D (debug) parameter.
v0.2.3 14-04-2011 Stephan Bosch <[email protected]>
* Sieve filter tool: finished implementing basic functionality. It is not
quite ready yet, but it is available for those willing to experiment
with it (needs --with-unfinished-features config to compile). Also
includes man page.
+ Vacation extension now inhibits replies to messages from sender listed
in :addresses, thus preventing replies to one of the user's other known
addresses.
+ Vacation extension: implemented the (draft) vacation-seconds extension.
This also adds min/max period configuration settings. Refer to
doc/vacation.txt for configuration information.
- ManageSieve: fixed bug in UTF-8 checking of string values. This is done
by discarding the original implementation and migrating to the Dovecot
API's UTF-8 functionality.
- Sieve command line tools now avoid initializing the mail store unless
necessary. This prevents sievec and sieve-dump from failing when
executed by root for example.
- Enotify extension: fixed inappropriate return type in mailto URI parse
function, also fixing ARM compiler warning.
- Vacation extension: fixed handling of sendmail errors. It produced an
additional confusing success message in case of error.
- Removed header MIME-decoding to fix erroneous address parsing. Applies to
address test and vacation command.
- Fixed segfault bug in extension configuration, triggered when unknown
extension is mentioned in sieve_extensions setting.
v0.2.2 06-12-2010 Stephan Bosch <[email protected]>
* LDA Sieve plugin: started using Dovecot LDA reject API for the reject
extension. This means that the LDA reject_reason and reject_subject
settings now also work for Pigeonhole's LDA Sieve plugin.
* Did some work on the new sieve-filter tool. It is mostly functional, but
it is not finished yet.
* Dovecot change: services' default vsz_limits weren't being enforced
correctly in earlier v2.0 releases. Now that they are enforced, you might
notice that the default limits are too low and you need to increase them.
This problem will show up in logs as "out of memory" errors. See
default_vsz_limit and service { vsz_limit } settings.
- Imap4flags: fixed segfault bug occurring in multiscript context.
- Added version checking to the ManageSieve settings plugin. This plugin was
forgotten when the LDA plugin was updated with this change in the previous
release.
- LDA Sieve plugin: fixed memory leak at deinitialization.
v0.2.1 27-09-2010 Stephan Bosch <[email protected]>
+ Incorporated distinction between original and final envelope recipient in
Sieve interpreter, as recently introduced in Dovecot.
+ Regex extension: added support for regex keys composed from variables.
- LDA Sieve plugin: added _version symbol to enable Dovecot's plugin version
check. Without this check, people can forget to recompile the plugin, which
can lead to unexpected effects.
- LDA Sieve plugin: turned debug message about an unconfigured home directory
into a proper error and added script path information.
- Fixed unnecessary reporting of dummy extensions in ManageSieve SIEVE
capability; the comparator-i;octet and comparator-i;ascii-numeric
'extensions' were reported explicitly.
v0.2.0 10-09-2010 Stephan Bosch <[email protected]>
* Merged Sieve and ManageSieve packages into a single Pigeonhole package.
There is also no need to patch Dovecot anymore to gain ManageSieve support.
Version numbering of previous Sieve releases is continued as v0.2.0. The
sources originally branched off from Sieve v0.1.5 and ManageSieve v0.11.4,
but the NEWS history of much more recent releases for Dovecot v1.2 is
included since these changes are all included in this release as well.
* The ManageSieve service now binds to TCP port 4190 by default due to the
IANA port assignment for the ManageSieve service. When upgrading from v1.2,
this should be taken into account. The service can be configured manually to
listen on both 2000 and 4190.
* The Dovecot configuration now calls the ManageSieve protocol 'sieve' in
stead of 'managesieve' because it is registered as such with IANA. The
binaries and the services are still called managesieve and
managesieve-login.
* The binary representation of a compiled Sieve script is updated to include
source code locations of all commands and arguments. This is implemented in
a similar manner as such debug information is included in some system
executables and libraries (DWARF-like). Run-time errors can now always refer
to the proper line number in the Sieve source script.
* The Sieve plugin is adapted to work properly with the new LMTP service
introduced with Dovecot v2.0. The same plugin is used for both LDA and LMTP.
* The 'sieve_subaddress_sep' setting for the Sieve subaddress extension is now
known as 'recipient_delimiter'. Although the deprecated sieve_subaddress_sep
setting is still recognized for backwards compatibility, it is recommended
to update the setting to the new name, since the new LMTP service also uses
the recipient_delimiter setting.
* ManageSieve: changed default IMPLEMENTATION capability to from 'Dovecot' to
'Dovecot Pigeonhole'.
* Renamed the sieved tool to sieve-dump. The original name was somewhat
confusing.
* Updated man pages to match style and structure of new Dovecot man pages.
* Made testsuite commands more uniform and cleaned up many of the testsuite
scripts. Some minor new tests were added in the process.
+ Simplified string matching API to use abstract string lists as data sources.
This will also make implementing the index extension easier in the future.
+ Significantly improved trace debugging with the sieve-test tool. The full
execution of the script can be examined, including the matched values and
keys of the respective Sieve test commands. The executed statements are
listed with their line number (and code address when requested). The level
of detail is configurable from the command line.
+ The SIEVE and NOTIFY capabilities reported by the ManageSieve protocol can
now be configured manually. If left unconfigured, the capabilities are
determined from the default Sieve and ManageSieve configuration.
User-specific capabilities aren't reported until after authentication.
+ Significantly improved file error handling. This means that administrators
get a more useful and informative log message when file operations fail. The
most notable example is that when the LDA Sieve plugin is trying to store a
binary for a global script, the resulting failure message also points the
administrator towards pre-compiling the script with sievec.
+ Added runtime argument value checking for several commands (redirect, date
vacation). When variables are used, these checks cannot be performed at
compiletime. A proper runtime error now is produced when invalid data is
encountered.
+ UTF8 validity of fileinto command argument is now checked either at compile
time or at runtime. Previously, it was not checked until the store action
was executed.
+ Validity of IMAP flags for the imap4flags extension is now checked also
at runtime. Previously, it was not checked until the store action was
executed.
+ Simplified and restructured error handling. Also made sure that user-caused
errors are no longer written to the Dovecot master/LDA log.
- Multiscript: fixed duplicate implicit keep caused by erroneous execution
state update.
- Prevented assertion failure due to currupt binary string representation.
If the string was missing a final \0 character an assertion was produced in
stead of a binary corruption error.
- Imap4flags: fixed bug in setflag command; when parameter was a stringlist,
only the last item was actually set.
- Variables extension: fixed :length set modifier to recognize utf8 characters
instead of octets.
- Testsuite: prevented innocent warning messages, i.e. those that are part of
the test, from showing up by default.
- ManageSieve/Sieve storage: fixed error handling of PUTSCRIPT commmand; save
commit errors would not make the command fail.
- ManageSieve: enforced protocol syntax better with some of the commands; some
commands allowed spurious extra arguments.
- Fixed Sieve script name checking to properly handle length limit and added
0x00ff as invalid character.
- Removed spurious old stdio.h (top) includes; these caused compile issues on
specific systems.
- Fixed default Sieve capability (as reported by ManageSieve): extra
extensions spamtest, spamtestplus and virustest were enabled by default.
These should, however, only be enabled when properly configured and there
is no default configuration.
(Fused Dovecot Sieve and ManageSieve packages into a single Pigeonhole release)
Dovecot Sieve NEWS history:
---------------------------
Dovecot 1.2:
v0.1.17 19-06-2010 Stephan Bosch <[email protected]>
- Made sure source code positions for compiler messages are recorded at start
of tokens.
- Fixed a few potential memory leaks in the Sieve compiler and the
spam/virustest extensions.
- Made command line tools return proper exit status upon failure.
v0.1.16 30-04-2010 Stephan Bosch <[email protected]>
* Finished implementation of spamtest, spamtestplus and virustest extensions.
These are not enabled by default and need to be activated with the
sieve_extensions setting. Documentation available in
doc/spamtest-virustest.txt
+ Vacation extension: the from address of the generated reply is now by
default equal to whatever known recipient alias matched the headers of the
message. If it is one of the aliases specified with :addresses, it is used
instead of the envelope recipient address that was used before.
+ Restructured and optimized the lexical scanner.
+ Added --with-docs configure option to allow disabling installation of
documentation.
- Accidentally omitted 'extern' in two declarations of global variables in
header files, causing compile failures on certain systems.
- Deprecated imapflags extension: fixed implicit assignment of flags. Turns
out this never really worked, but the effect of this bug was obscured by the
removeflag bug fixed in the previous release.
- Fixed various memset argument mixups in enotify extension. This caused
warnings on certain systems, but luckily no adverse effects at runtime.
v0.1.15 25-01-2010 Stephan Bosch <[email protected]>
* Enotify extension:
- Adjusted notify method API for addition of new notification methods.
- Set default importance level to 'normal' (was 'high').
* Include extension: updated implementation towards most recent specification
(all should be backwards compatible):
- Implemented global variables namespace.
- Global command may now appear anywhere in a script.
- Implemented script name checking using the requirements specified in the
ManageSieve draft.
- One issue remains: ManageSieve currently requires included scripts to be
uploaded first, which is not according to specification.
* Changed envelope path parser to allow to and from envelope addresses that
have no domain part.
+ Added preliminary support for Sieve plugins and added support for installing
Sieve development headers.
+ Started work on the implementation of the spamtest, spamtestplus and
virustest extensions (unfinished).
+ Deprecated notify extension: implemented denotify command.
+ Variables extension: added support for variable namespaces.
+ Added configurable script size limit. Compiler will refuse to compile files
larger than sieve_max_script_size.
+ Testsuite changes:
- Added support for changing and testing an extension's configuration.
- Added a command line parameter for copying errors to stderr.
- Fixed a bug in the i;ascii-numeric comparator. If one of the strings started
with a non-digit character, the comparator would always yield less-than.
- Imap4flags extension: fixed bug in removeflag: removing a single flag failed
due to off-by-one error (bug report by Julian Cowley).
- Improved EACCES error messages for stat() and lstat() syscalls and slightly
improved error messages that may uccur when saving a binary.
- Vacation extension: fixed typo in runtime log message (patch by Julian
Cowley).
- Fixed use of minus '-' in man pages; it is now properly escaped.
- Fixed parser recovery. In particular cases it would trigger spurious errors
after an initial valid error and sometimes additional errors were
inappropriately ignored.
v0.1.14 19-12-2009 Stephan Bosch <[email protected]>
* Made the imposed limits on the number of redirects and the number of
actions configurable. The settings are called sieve_max_actions and
sieve_max_redirects.
* Did a major rework of extension handling, making sure that no global state
is maintained. This change was triggered by problems that global state info
would cause for Dovecot v2.0, but it is also important for v1.2 as it
significantly cleans up the library implementation.
+ Made LDA Sieve plugin recognize the deliver_log_format setting.
+ Message headers produced from user-supplied data are now RFC2047-encoded if
necessary for outgoing messages. This is for example important for the
:subject argument of the vacation action.
+ Added support for the $text$ substitution in the deprecated notify
extension.
+ The subaddress extension now also accepts recipient_delimiter setting as an
alias for sieve_subaddress_sep setting. This anticipates the
recipient_delimiter setting in v2.0.
- Fixed logging of mailbox names. It logged the converted mUTF7 version in
stead of the original UTF8 version supplied by the user.
- Fixed a minor memory leak in the multiscript support.
- Fixed a bug in the recompilation of Sieve scripts. Made sure that scripts
are only recompiled when the script file - or the symlink pointing to it -
is strictly newer.
v0.1.13 18-10-2009 Stephan Bosch <[email protected]>
+ Body extension: implemented proper handling of the :raw transform and added
various new tests to the test suite. However, :content "multipart" and
:content "message/rfc822" are still not working.
+ Fixed race condition occurring when multiple instances are saving the same
binary (patch by Timo Sirainen).
+ Test suite: added support for testing multiscript execution.
- Made compiler more lenient towars missing CRLF at the end of the script in a
hash comment.
- Body extension: don't give SKIP_BODY_BLOCK flag to message parser, we want
the body! (patch by Timo Sirainen).
- Fixed handling of implicit side effects for multiscript execution.
- Fixed bugs in multiscript support; subsequent keep actions were not always
merged correctly and implicit side effects were not always handled
correctly.
- Fixed a segfault bug in the sieve-test tool occurring when compile fails.
- Fixed segfault bug in action procesing. It was triggered while merging side
effects in duplicate actions.
- Fixed bug in the Sieve plugin that caused it to try to stat() a NULL path,
yielding a 'Bad address' error.
v0.1.12 21-08-2009 Stephan Bosch <[email protected]>
+ Testsuite: added support for testing binaries stored on disk.
+ Implemented the new date extension. This allows matching against date values
in header fields and the current date at the time of script evaluation.
v0.1.11 08-08-2009 Stephan Bosch <[email protected]>
+ Built skeleton implementation for the date extension (RFC 5260). It
compiles, but it does not do anything useful yet. Therefore, it is not part
of the default compilation.
- Fixed ARM portability issues caused by char type not being signed on that
platform. Reading optional operands from a binary would fail for action side
effects. Also, an accidental mixup of an int return type with bool caused
the interpreter to continue on ARM even though an error occured.
- Removed direct stdint.h includes to prevent portability issues.
- Fixed segfault bug in the handling of script open failures.
- Include: improved user error messages and system log messages.
- Fixed copy-paste mixup between sieve_after and sieve_before settings in the
LDA Sieve plugin. If only a sieve_after script was active, nothing would
have been executed. Patch by Mike Abbott.
- Include: fixed a bug in HOME substitution in the sieve_dir path. Surfaced in
ManageSieve.
v0.1.10 03-08-2009 Stephan Bosch <[email protected]>
* Changed action execution of fileinto and keep. These changes depend on API
additions in Dovecot, making this release depend on Dovecot v1.2.2 or newer.
* Further developed the sieve-filter command line tool. This required a few
changes to the action execution of the Sieve engine. The tool was
successfully tested on folders with a few 100k spam messages. However, the
commandline options are still incomplete, a man page is missing and it needs
much more testing before I can recommend anyone to use this tool.
+ Added support for the mailbox extension. This allows checking whether a
mailbox exists using the mailboxexists command and it adds the :create
argument to the fileinto command to create the mailbox when it is missing.
The :create feature is useless unless the Deliver LDA is run with the -n
option.
+ Improved the testsuite with tests for message delivery. Messages stored
using keep and fileinto can be fed back into the Sieve engine for
verification. This includes testing of applied IMAP flags.
+ Updated the man pages with the new method of specifying the supported
extensions using + and - (for the -x parameter of the sieve tools)
+ Further developed the deprecated notify extension. A dummy for the denotify
command exists, meaning that its use does not cause an error anymore.
- Fixed a bug in the derivation of the binary path from the script path. A
bare filename would yield a path relative to root.
- Fixed a bug in the value matching code. The context data now uses a proper
pool instead of the data stack. Bug reported by Jan Sechser.
- Fixed assertion fail in the include extension caused by missing
initialization upon binary load. This bug surfaces only for stored
binaries. Bug reported by Tom Hendrikx.
- Fixed include error message for failed :global include. It mentioned the
wrong config parameter.
- Fixed broken wiki reference in an error message of the plugin about the
'sieve' setting.
- Fixed behavior of fileinto when delivering into a namespace prefix.
Previous fix used the wrong storage.
v0.1.9 22-07-2009 Stephan Bosch <[email protected]>
* Removed the unfinished sieve-filter tool from the default build. It is now
only built when the --with-unfinished-features switch is supplied during
configure.
+ Started building support for the ereject version of the reject action,
which has a preference to use an SMTP/LMTP protocol error instead of a
bounce message. This is to be used to make the Sieve plugin honour Deliver's
-e parameter. This is not yet finished and not built by default.
+ Improved 'Permission denied' error messages just like Dovecot does,
precisely specifying what permission is missing to access or create a file.
+ Added additional headers to the list of allowed headers for the address
test. The restrictive nature of the address test is not always appropriate.
Still thinking of a better, less restrictive implementation.
+ Made the deprecated notify extension compatible with the old CMUSieve
plugin. However, the denotify command and the $text$ substitution are not
yet supported.
+ Made the discard action log a message to avoid confusion about disappearing
messages.
- Fixed behavior of fileinto when delivering into a namespace prefix. It now
uses silent delivery into INBOX as fallback.
- Fixed logging of folder namespace prefix upon delivery into a prefixed
namespace. Formerly it only logged the bare folder name.
- Fixed a potential segfault in the argument validation. It didn't surface
because no command could have a :tag followed by an associated parameter as
last argument.
- Fixed segfault bug occurring in envelope test when performed on null (<>)
envelope path. The fix involves a rather large restructuring of the code to
make sure envelope addresses are properly handled everywhere (bug reported
by Nikita Koshikov)
- Envelope: fixed bug in application of address parts; failure to obtain
the part would cause inappropriate match success (bug reported by Ron Lee)
- Fixed extension conflict checks during validation. It could sometimes
produce useless errormessages. This is currently only used by the
deprecated extensions.
- Forgot to remove old explicit storage library dependency (patch by
Arkadiusz Miskiewicz).
- Fixed compiler warnings on certain platforms regarding the use fwrite for
outgoing message construction
v0.1.8 12-07-2009 Stephan Bosch <[email protected]>
- Fixed AIX compile problem. For portability, the typeof operator is
not used anymore.
+ Added partial support for the deprecated notify extension. However, it
turns out that the implementation provided by cmusieve is even older (2001),
meaning that this is currently not backwards compatible with cmusieve.
v0.1.7 05-07-2009 Stephan Bosch <[email protected]>
+ Added support for CRLF line breaks in strbuf error handler to fix a
ManageSieve problem.
+ Improved consistency of sieve tool documentation and fixed missing
parameters in internal tool help output.
+ Enhanced extensions configuration, allowing to specify the enabled
extensions relatively to the default (patch by Steffen Kaiser).
- Forgot to initialize script execution status in Sieve plugin, causing
segfaults on compile errors in specific conditions.
- Fixed logging in Sieve plugin for execution of default main script (went
to STDERR).
v0.1.6 18-06-2009 Stephan Bosch <[email protected]>
* Adjusted to changes in Dovecot to make it compile against v1.2.rc5
* Made default of sieve_dir setting match the ManageSieve implementation.
- Fixed a few problems in de body extension that caused assert failures in
specific situations.
v0.1.5 18-04-2009 Stephan Bosch <[email protected]>
* Ported the implementation of the Sieve include extension to the latest
draft. This means that the import and export commands are replaced by a new
command called global. The import and export commands are now DEPRICATED and
are mere aliases for the global command. The new specification also adds the
:once modifier to the include command. The also newly specified global.*
variable namespace is not implemented yet as support for variable namespaces
is currently missing.
* Did a major rework of the multiscript support for better error handling and
made sure that persistent global scripts (sieve_before/sieve_after) are
always executed, even when the user does not have a script of his own and
a global default is missing.
+ Provided basic support for the environment extension. Currenly, the name,
version and host items are useful. Others are pending.
+ Improved error message that is presented when an unknown Sieve extension is
provided as argument to the require command. It now notifies the user that
Sieve core commands do not need to be specified in require.
- Fixed bug in includes at levels deeper than one.
- Fixed bug in address matching that was caused by the failure to handle group
specifications. In dovecot, these are marked by address items with NULL
elements, which causes a segfault if not considered. The group 'undisclosed-
recipients:;' in particular triggered this bug. Bug reported by Bernhard
Schmidt.
v0.1.4 21-03-2009 Stephan Bosch <[email protected]>
* Started work on the sieve-filter tool. With this command line tool it will
be possible to (re-)apply Sieve filters on a mail folder. It is currently
undocumented and far from functional.
+ Added a custom debug extension that provides the possibility to print debug
messages from scripts executed by the Sieve tools.
- Fixed issue with opening relative paths as a mail file. Bug reported by Ian
P. Christian.
- Fixed MAC OSX compile problem. Turns out the extern modifier was missing at
multiple places. Bug reported by Edgar Fuss.
- Fixed Solaris compile problem: removed unecessary and unportable linker
flags that caused compile to fail. Bug reported by Andrés Yacopino.
v0.1.3 12-02-2009 Stephan Bosch <[email protected]>
* Adapted to changes in Dovecot, making this release dependent on Dovecot
>= 1.2.beta1
* Made mail address comparison fully case-insensitive. This is particularly
noticeable for the :addresses argument of the vacation command.
+ Finished enotify extension. Currently, only the mailto notification method
is implemented. All still needs to be tested thoroughly.
+ Implemented multiscript support. It is now possible to execute multiple
Sieve scripts sequentially. Administrator-controlled scripts can be
executed before and after the user's script. Still needs to be tested
thoroughly.
+ Implemented support for configuring the available Sieve extensions.
+ Made the subaddress extension (partially) configurable using the
sieve_subaddress_sep setting, which allows specifying a (multi-charater)
separator other than '+'.
+ Compiler now warns about invalid header field names used for the header and
address tests.
+ Vacation extension now properly generates a References header for the
response message.
+ Added testing of basic result execution to the test suite. Also added
supportfor testing the outgoing messages produced by the Sieve interpreter.
+ Included execution of the actual result in the sieve-test command line tool.
The undocumented sieve-exec tool that existed for this is now removed as
planned.
+ Added support for the now obsolete 'imapflags' extension for backwards
compatibility with CMUSieve. This also implements the mark/unmark commands.
- Fixed bugs in the regex extension: 1) if an optional match value did not in
fact match, subsequent match values would get unexpected indexes. 2) fixed
segfault bug occurring when regex is freed.
- Fixed bug in the use of the :from agrument for the vacation command. If this
address included a phrase part, the response would not be a valid RFC822
message.
- Plugged a theoretical security hole occurring when a directory is opened as a
Sieve binary.
- Cleaned up and fixed various log messages.
- Fixed bug in the outgoing address verification. Addresses ending in ',' were
erroneously accepted.
v0.1.2 26-11-2008 Stephan Bosch <[email protected]>
- Fixed important bug in the redirect action (and probably other actions like
reject and vacation that only send messages). This was a bug in the handling
of context information during the execution of actions. It caused the sieve
interpreter to crash with a segfault when redirect was executed.