move all code into /trunk

This commit is contained in:
ps 2008-12-14 19:12:48 +00:00
commit 2aac3e1e88
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7
AUTHORS Normal file
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Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
Main coder
Veit Wahlich <cru@zodia.de>
.spec file rewrite
patch for rejection if peer's ip doesn't resolve to a hostname
patch for stats transmission exactly every 60 minutes

335
ChangeLog Normal file
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ChangeLog
---------
2007-07-20 20:03 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* 1.6 release
* Bugs:
* Fixed a DoS-causing, remotely explitable bug in Proxy.cpp. This bug only affects version 1.3 to
1.5, both inclusive. If you are using either 1.3, 1.4 or 1.5 UPDATE NOW.
Thanks to Veit Wahlich for finding and reporting the bug and for submitting
a preeliminar patch.
* While looking for similar vulnerabilities in the code, found a small
incorrection, although it doesn't have security implications.
2007-07-19 12:57 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* 1.5 release
* Enhancements:
* Allow permanently rejecting mails with dnsbl or spf errors. To use configure
return_temp_error_on_reject as false (default). To keep the old behaviour,
configure the above option as true.
* File logger can now be configured to only open the file sporadically to
write its buffer. This allows for external log rotators on platforms that
can't rename an open file (i.e. windows). The option is called
keep_file_locked. To use the new behaviour, configure as false, to keep the
old one configure as true.
* Implemented win32 service support. To enable, configure with
--enable-win32-service. The windows build on the website are already compiled
with this option. To install the service execute:
c:\hermes> hermes -install
To uninstall:
c:\hermes> hermes -uninstall
To start:
c:\hermes> net start hermes
To stop:
c:\hermes> net stop hermes
Of course, you can also use the service manager to start and stop the service.
Using the service code there's a big warning everyone should read:
The config file MUST be named "hermes.ini" and be located on the same
directory as "hermes.exe". Also, since hermes is started from another
directory, you have to specify the full path to the database:
database_file = "c:\hermes\greydatabase.db"
* Fixes:
* Fix SPF requests to be synchronized. I haven't seen a single failure from
this, but this is the right way.
* Removed an stale debug statement. It could be noticed when starting hermes
that the list of dns white/black lists was printed on the standard output.
* dns_{white,black}list_percentage now defaults to 100. Setting it to 0 makes
no sense and makes all your emails to be considered white/black listed.
* Fixed spec file to include the AUTHORS file.
* The value of spf_query now defaults to true when compiled with SPF support.
* Applied patch by Veit Wahlich that fixes stats submission to be each 60
minutes exactly. Previously it would send the stats on intervals of
approximattely 60 minutes.
* Whitelisting IPs is now partial like blacklisting. For example, whitelisting
192.168.0 will whitelist 192.168.0.* (192.168.0.0/24)
* Small fixes to the building system.
2007-06-14 20:23 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* 1.4 release
* Enhancements:
* SPF: if you enable query_spf, everytime someone gets through greylisting,
they will be checked for spf compliance. If they either FAIL or SOFTFAIL, they
will be rejected.
* Specify your hostname on the config file (option hostname). If it's empty,
it gets filled by gethostname() (as before)
* DNS Whitelisting: similar to DNS Blacklisting, but the other way around.
* DNS Whitelisting and DNS Blacklisting both support querying more than one
server at a time. It means that you don't have to rely 100% on a dns list, but
can use more than one. To control how many of the list need to list a server,
use dns_{black,white}list_percentage option on config file.
* If you define now whitelisted_disables_everything, whitelisted host will not
be forced to go through throttling and banner delaying (or anything else).
* Blacklisting is now partial. That means that if you blacklist 192.168.0. you
are actually blacklisting 192.168.0.* (192.168.0.0/24 if you prefer)
* Added the throttling_time option that controls how much we sleep between
lines when throttling a connection.
* Changed logging format. Should be clearer now, although there are still some
things I'd like to change.
* We are also logging now also when someone gets their connection dropped
because of throttling or data-before-banner (or black/whitelisting, spf, etc. ).
It should help to get a better feeling of how much spam we are stopping with
these techniques.
* We now can reject emails if peer doesn't have an inverse resolution (patch
by Veit Wahlich) or if the inverse resolution doesn't match the helo string.
Both of these features should be used with extreme care, and are disabled by
default. You shouldn't use them if you don't know what you are doing.
* Fixes:
* FileLogger.cpp: file logging now flushes its buffer after a few lines (15).
This should update the log on file more often.
* Configfile.tmpl: when compiling on windows, all default values should be
valid
* Fixed a bug when closing the filelogger file (most people noticed that
hermes crashed when closing when using file logger).
* Changed the X-Anti-Spam-Proxy header to be more clear.
* Fixed all typos with wether to whether
* Fixed a minor RFC-strict error when defining the non-existing extension
* Timezone _should_ be correct now on windows. If it isn't, write to the
mailing list with an example and why you think it's incorrect.
* Fixed configure.in. If you specify now --disable-openssl it will disable
openssl even if you have it installed
* Updated the .spec file (thanks again to Veit Wahlich's patch)
* Added AUTHORS file and also added lot's of docs to the windows release.
2007-05-18 20:11 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* 1.3 release
* added the add_headers option, will add the rfc-required "Received" headers
should give a better idea of where emails are coming/going
* also added date to logging when it is done to a file
* fixed filelogger, should now use file_logger_file config option
* windows version can now resolve addresses, so rbl works and also you can now
use fancy names like "localhost" instead of ugly ips like "127.0.0.1"
* updated rpm, hopefully everything should be ok now
2007-05-13 18:21 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* 1.2 release
* added rbl checking. Simply define rbl_domain in configfile
2007-04-20 12:04 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Added an option to configure the initial delay of the SMTP banner
2007-04-19 20:28 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Bugfix 1.1 release
* Implemented the bind_to config option. Defining bind_to in the configfile
will force hermes to only bind to one ip.
* Fixed a small bug when closing hermes with clean_db=false (it would segfault
previously)
* Added more documentation and updated http://www.hermes-project.com
2007-04-16 19:48 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Initial 1.0 release
2007-04-09 20:27 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* *.{h,cpp}: add GPL license to all source files. also added gpl.txt with the
full license text on /docs
* Makefile.am: configure automake more correctly (not a lot, probably still
very wrong)
* TODO: cleaned up a bit
2007-04-09 18:57 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* *.{h,cpp}: Ifdef'd all output to terminal. From now on if you want all that
output, define REALLY_VERBOSE_DEBUG on config.h (once it is generated)
* generate_config.pl: generate also a default config file from the information
on Configfile.tmpl
2007-03-18 19:16 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* *Logger.{h,cpp}: Implement logging as a base class with different subclasses
depending on a configure option. Also added option to Configfile.tmpl to
configure the filename for FileLogger.
This change will allow us to port hermes more easily to other platforms,
specially non-unix(i.e. win32), but also will help if we don't have a logger
installed or if it's not compatible with the common interface (I'm using
metalog, btw).
2007-03-18 17:06 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* *: change all instances of spit to hermes to reflect project's new name
2007-03-09 18:19 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Database.*: modified cleanDB, now the method counts the number of spams we
have blocked since the last time we cleaned
* spit.cpp: if we have configured it, send the number of spams blocked to a
server to keep the statistics
* Configfile.tmpl: added options to configure the previous changes.
submit_stats (bool) submit_stats_username (string) and submit_stats_password
(string)
2007-02-14 18:20 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* *.*: change all calls to Exception constructor to send also the file name and line
number
2007-02-12 19:03 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Socket.*: new option setTimeout, sets the timeout for receive/send operations, should
help with the sockets getting blocked on recv() or send()
* Exception.*: new constructor accepts a filename and line number. The idea is to migrate
all calls to Exception to this new constructor so that errors get printed with their source
filename and line number to make debugging easier.
2007-02-10 17:25 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Configfile.*: changed Configfile.{cpp,h} to be generated from Configfile.tmpl and
Configfile.{cpp,h}.in . It should be MUCH easier to add new config options
from now on. As a proof, adding options for the time to greylist and the
initial delay were a breeze compared to before.
* spit.cpp: instead of sending the data for thread_main in a pointer, send a
pointer to a stack and just pop the last element added.
2006-11-12 21:22 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* updated changelog to use gnu coding standards
* autotoolize spit
* Makefile.am
* configure.in
* Config.h: rename class to Configfile
2006-10-22 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Socket.cpp: now creates the ssl context and loads certificates on the first socket
creation, so we now use less memory per-thread, AND we also load the certs
BEFORE chrooting, so now private_key and certificate DON'T need to be
(and are NOT recomended) INSIDE the chroot, which is a cool security feature.
2006-10-21 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* SQL.cpp: Changed SQL class so that every query is made through doQuery, that
controls that everything works the right way.
* Exception.cpp: When an Exception ocurrs, we notify it by email, either through smtp
or through sendmail
2006-10-15 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Config.cpp: Fixed Config.cpp::validateConfig to take into account chrooting
* Socket.cpp: Fixed Socketp.cpp::close, we were sometimes closing fds twice
* main.cpp: if you send SIGINT or SIGTERM once you close gracefully, if you do
it twice, you forcefully stop the program, for when a socket is waiting to timeout,
and you can't restart the proxy in-between
2006-10-12 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Config.cpp: Overhauled Config class
* main.cpp: fixed chrooting, now only /etc/resolv.conf is needed
2006-10-08 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Socket.cpp: ssl is now fully working
decimal time for waiting in Socket::canRead
* SQL.cpp: whitelisting based on hostname of peer added.
* Logger.cpp: implements a logger for unix
* preeliminary port to solaris 10
2006-09-24 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* LOTS of bugfixes, some change in semantics and a bit of heavy-work
testing. Should be MUCH more stable now.
2006-09-18 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* main.cpp (main): Made threads detached to allow them to free resources
2006-09-17 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* main.cpp (main): Create a thread to clean the database each hour
Threads now clean themselves up when finishing
2006-09-16 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
* Initial import to svn

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EXTRA_DIST = scripts/generate_config.pl ChangeLog TODO
SUBDIRS = src docs dists

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TODO:
-----
check ipv6 support, although I don't have any machine configured with ipv6..., but work is required anyway
windows Service
windowsishms
create documentation!!!!!!
add to documentation a note about the importance of correctly whitelisting peer hostname(you need a DOT before the name, so for example bongmail.com doesn't match against .gmail.com)
check return value from some functions
document some functions
check segfaults when receiving 1000+ threads
inet_ntoa/ntoa_inet are static!!!
reduce memory consumption per-thread
profile program
run through valgrind

3
bootstrap Executable file
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#!/bin/bash
aclocal && autoconf && autoheader && automake --add-missing

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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.57)
AC_INIT([hermes], [1.7], [juanjo@gutierrezdequevedo.com])
dnl AC_CONFIG_AUX_DIR=([./config])
AM_CONFIG_HEADER([config.h])
AM_INIT_AUTOMAKE([1.7.8 foreign])
AC_PROG_CXX
AC_PROG_INSTALL
dnl
dnl check libraries and functions
dnl
AC_CHECK_FUNCS(getaddrinfo gai_strerror)
PKG_CHECK_MODULES(SQLite3, sqlite3, [], AC_MSG_ERROR("sqlite3 is required"))
PKG_CHECK_MODULES(OpenSSL, openssl, have_ssl=yes, have_ssl=no)
AC_CHECK_LIB(spf2,SPF_server_new, have_spf=yes, have_spf=no)
dnl
dnl end of libraries and functions
dnl
dnl
dnl check parameters
dnl
AC_ARG_WITH(logger-module,
[ --with-logger-module=module Module to log errors with. module is one of unix, file or null. default=unix],
[loggermodule=$withval],
[loggermodule=unix]
)
if test "$loggermodule" = unix; then
AC_DEFINE(LOGGER_CLASS,UnixLogger)
fi
if test "$loggermodule" = file; then
AC_DEFINE(LOGGER_CLASS,FileLogger)
fi
if test "$loggermodule" = null; then
AC_DEFINE(LOGGER_CLASS,NullLogger,[Define what logger we are using])
fi
AC_ARG_ENABLE(openssl,
[ --enable-openssl Enable OpenSSL support ],
[
if test x$enableval = xyes; then
if test x$have_ssl = xno; then
AC_MSG_ERROR("OpenSSL support requested but not detected")
fi
have_ssl=yes
else
have_ssl=no
fi
]
)
AC_ARG_ENABLE(spf,
[ --enable-spf Enable SPF support ],
[
if test x$enableval = xyes; then
if test x$have_spf = xno; then
AC_MSG_ERROR("SPF support requested but not detected")
fi
have_spf=yes
else
have_spf=no
fi
]
)
win32_service=no
AC_ARG_ENABLE(win32-service,
[ --enable-win32-service Enable win32 service support ],
[
if test x$enableval = xyes; then
win32_service=yes
fi
]
)
dnl
dnl end of parameters check
dnl
dnl
dnl config.h variables
dnl
if test x$have_ssl = xyes; then
AC_DEFINE(HAVE_SSL,1,[Defined if using openssl for SSL support])
fi
if test x$have_spf = xyes; then
AC_DEFINE(HAVE_SPF,1,[Defined if system has libspf2])
fi
if test x$win32_service = xyes; then
AC_DEFINE(WIN32_SERVICE,1,[Defined if we want to compile win32 service support])
fi
dnl
dnl end of config.h variables
dnl
dnl
dnl conditionals for makefiles
dnl
AM_CONDITIONAL(HAVE_SPF, test "$have_spf" = yes)
AM_CONDITIONAL(LOGGER_UNIX, test "$loggermodule" = unix)
AM_CONDITIONAL(LOGGER_NULL, test "$loggermodule" = null)
AM_CONDITIONAL(LOGGER_FILE, test "$loggermodule" = file)
AM_CONDITIONAL(WIN32_SERVICE, test "$win32_service" = yes)
dnl
dnl end of conditionals for makefiles
dnl
AC_CONFIG_FILES([Makefile src/Makefile docs/Makefile dists/Makefile dists/hermes.spec])
AC_OUTPUT
echo
echo
echo "Configuration for $PACKAGE_STRING"
echo
echo " SSL: $have_ssl"
echo " SPF: $have_spf"
echo " Logger: $loggermodule"
echo " Win32: $win32_service"
echo

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doc_DATA = hermesrc.example
EXTRA_DIST = fc_init hermes.spec hermes.spec.in

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#!/bin/bash
# Startup script for hermes
#
# chkconfig: 3 95 05
# description: hermes
# Source function library.
. /etc/rc.d/init.d/functions
prog=hermes
configfile=/etc/hermes/hermesrc
start() {
echo -n $"Starting $prog: "
daemon --check=$prog /usr/bin/hermes $configfile
RETVAL=$?
echo
}
stop() {
echo -n $"Stopping $prog: "
killproc $prog
RETVAL=$?
echo
}
safestop() {
echo -n $"Stopping $prog(will process pending connections):"
killproc $prog -INT
rm /var/run/$prog.pid
RETVAL=$?
echo
}
case "$1" in
start)
start
;;
stop)
stop
;;
restart)
safestop
sleep 2
start
;;
condrestart)
if test "x`pidfileofproc $prog`" != x; then
stop
start
fi
;;
*)
echo $"Usage: $0 {start|stop|restart|condrestart}"
exit 1
esac
exit $RETVAL

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Summary: An anti-spam SMTP proxy
Name: @PACKAGE@
Version: @VERSION@
Release: 0
License: GPL
Group: System Environment/Daemons
Packager: Veit Wahlich <cru@zodia.de>
URL: http://www.hermes-project.com/
Source0: http://www.hermes-project.com/files/%{name}-%{version}.tar.bz2
Buildroot: %{_tmppath}/%{name}-%{version}-%{release}-root
%description
hermes is a generic, lightweight, portable and fast anti-spam smtp proxy.
Supports greylisting, dns blacklisting/whitelisting, protocol throttling, banner delaying, spf and some
other tricks to reject most spam before it even enters your system.
%prep
%setup -q
%build
%configure --docdir=%{_datadir}/doc/%{name}-%{version}
%__make %{?_smp_mflags}
%install
%__rm -rf %{buildroot}
%__make DESTDIR=%{buildroot} install
%__mkdir_p %{buildroot}%{_sysconfdir}/rc.d/init.d
%__mkdir_p %{buildroot}%{_sysconfdir}/hermes
%__mkdir_p %{buildroot}%{_localstatedir}/hermes
%__install -m 0755 dists/fc_init %{buildroot}%{_sysconfdir}/rc.d/init.d/hermes
%__install -m 0600 dists/hermesrc.example %{buildroot}%{_sysconfdir}/hermes/hermesrc
%clean
%__rm -rf %{buildroot}
%post
/sbin/chkconfig --add hermes
%preun
if [ $1 = 0 ]; then # execute this only if we are NOT doing an upgrade
%{_sysconfdir}/rc.d/init.d/hermes stop >/dev/null 2>&1
/sbin/chkconfig --del hermes
fi
exit 0
%files
%defattr(-, root, root, 0755)
%doc ChangeLog TODO AUTHORS dists/hermesrc.example docs/hermes-options.html docs/installing-hermes.txt docs/gpl.txt
%{_bindir}/hermes
%{_sysconfdir}/rc.d/init.d/hermes
%config %{_sysconfdir}/hermes/hermesrc
%dir %attr(0700,nobody,nobody) %{_localstatedir}/hermes
%changelog
* Thu Jun 14 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com> 1.4
- removed patches, they are now on upstream
* Fri May 25 2007 Veit Wahlich <cru@zodia.de> 1.3-2
- added patch fix_whether (documentation fixes)
- added patch add_rejectnoresolve (reject on no DNS reverse resolution feature)
- changed RPM group to system daemon standard
* Sat May 19 2007 Veit Wahlich <cru@zodia.de> 1.3-1
- Made /etc/hermes/hermesrc readonly as it may contain passwords
- Fixed ownership and permissions of /var/hermes to match configuration default
- Silenced setup macro output as required by some distributions
- Fixed docdir to a LSB compliant location, will be replaced by rpmbuild
- Packaged extra documentation
- Removed hermes-options.html.in from docs
- Use directory macros for files section
- Further specfile cleanups and macro usage
* Tue May 15 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
- Fixed rpm to create /var/hermes
* Fri Apr 11 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
- Initial release

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EXTRA_DIST = Doxyfile gpl.txt installing-hermes.txt hermes-options.html hermes-options.html.in
doc_DATA = gpl.txt installing-hermes.txt hermes-options.html hermes-options.html.in
docs:
doxygen

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
License is intended to guarantee your freedom to share and change free
software--to make sure the software is free for all its users. This
General Public License applies to most of the Free Software
Foundation's software and to any other program whose authors commit to
using it. (Some other Free Software Foundation software is covered by
the GNU Lesser General Public License instead.) You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
this service if you wish), that you receive source code or can get it
if you want it, that you can change the software or use pieces of it
in new free programs; and that you know you can do these things.
To protect your rights, we need to make restrictions that forbid
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These restrictions translate to certain responsibilities for you if you
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For example, if you distribute copies of such a program, whether
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you have. You must make sure that they, too, receive or can get the
source code. And you must show them these terms so they know their
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We protect your rights with two steps: (1) copyright the software, and
(2) offer you this license which gives you legal permission to copy,
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Finally, any free program is threatened constantly by software
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patent must be licensed for everyone's free use or not licensed at all.
The precise terms and conditions for copying, distribution and
modification follow.
GNU GENERAL PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
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the term "modification".) Each licensee is addressed as "you".
Activities other than copying, distribution and modification are not
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is covered only if its contents constitute a work based on the
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Whether that is true depends on what the Program does.
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You may charge a fee for the physical act of transferring a copy, and
you may at your option offer warranty protection in exchange for a fee.
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parties under the terms of this License.
c) If the modified program normally reads commands interactively
when run, you must cause it, when started running for such
interactive use in the most ordinary way, to print or display an
announcement including an appropriate copyright notice and a
notice that there is no warranty (or else, saying that you provide
a warranty) and that users may redistribute the program under
these conditions, and telling the user how to view a copy of this
License. (Exception: if the Program itself is interactive but
does not normally print such an announcement, your work based on
the Program is not required to print an announcement.)
These requirements apply to the modified work as a whole. If
identifiable sections of that work are not derived from the Program,
and can be reasonably considered independent and separate works in
themselves, then this License, and its terms, do not apply to those
sections when you distribute them as separate works. But when you
distribute the same sections as part of a whole which is a work based
on the Program, the distribution of the whole must be on the terms of
this License, whose permissions for other licensees extend to the
entire whole, and thus to each and every part regardless of who wrote it.
Thus, it is not the intent of this section to claim rights or contest
your rights to work written entirely by you; rather, the intent is to
exercise the right to control the distribution of derivative or
collective works based on the Program.
In addition, mere aggregation of another work not based on the Program
with the Program (or with a work based on the Program) on a volume of
a storage or distribution medium does not bring the other work under
the scope of this License.
3. You may copy and distribute the Program (or a work based on it,
under Section 2) in object code or executable form under the terms of
Sections 1 and 2 above provided that you also do one of the following:
a) Accompany it with the complete corresponding machine-readable
source code, which must be distributed under the terms of Sections
1 and 2 above on a medium customarily used for software interchange; or,
b) Accompany it with a written offer, valid for at least three
years, to give any third party, for a charge no more than your
cost of physically performing source distribution, a complete
machine-readable copy of the corresponding source code, to be
distributed under the terms of Sections 1 and 2 above on a medium
customarily used for software interchange; or,
c) Accompany it with the information you received as to the offer
to distribute corresponding source code. (This alternative is
allowed only for noncommercial distribution and only if you
received the program in object code or executable form with such
an offer, in accord with Subsection b above.)
The source code for a work means the preferred form of the work for
making modifications to it. For an executable work, complete source
code means all the source code for all modules it contains, plus any
associated interface definition files, plus the scripts used to
control compilation and installation of the executable. However, as a
special exception, the source code distributed need not include
anything that is normally distributed (in either source or binary
form) with the major components (compiler, kernel, and so on) of the
operating system on which the executable runs, unless that component
itself accompanies the executable.
If distribution of executable or object code is made by offering
access to copy from a designated place, then offering equivalent
access to copy the source code from the same place counts as
distribution of the source code, even though third parties are not
compelled to copy the source along with the object code.
4. You may not copy, modify, sublicense, or distribute the Program
except as expressly provided under this License. Any attempt
otherwise to copy, modify, sublicense or distribute the Program is
void, and will automatically terminate your rights under this License.
However, parties who have received copies, or rights, from you under
this License will not have their licenses terminated so long as such
parties remain in full compliance.
5. You are not required to accept this License, since you have not
signed it. However, nothing else grants you permission to modify or
distribute the Program or its derivative works. These actions are
prohibited by law if you do not accept this License. Therefore, by
modifying or distributing the Program (or any work based on the
Program), you indicate your acceptance of this License to do so, and
all its terms and conditions for copying, distributing or modifying
the Program or works based on it.
6. Each time you redistribute the Program (or any work based on the
Program), the recipient automatically receives a license from the
original licensor to copy, distribute or modify the Program subject to
these terms and conditions. You may not impose any further
restrictions on the recipients' exercise of the rights granted herein.
You are not responsible for enforcing compliance by third parties to
this License.
7. If, as a consequence of a court judgment or allegation of patent
infringement or for any other reason (not limited to patent issues),
conditions are imposed on you (whether by court order, agreement or
otherwise) that contradict the conditions of this License, they do not
excuse you from the conditions of this License. If you cannot
distribute so as to satisfy simultaneously your obligations under this
License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all. For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.
If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.
It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices. Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.
This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.
8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded. In such case, this License incorporates
the limitation as if written in the body of this License.
9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time. Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.
Each version is given a distinguishing version number. If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation. If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.
10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission. For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this. Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.
NO WARRANTY
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:
Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.
You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary. Here is a sample; alter the names:
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License.

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<div class="hermesoption">
<a name="%name%"><h3>%name%</h3></a>
<div class="type">Type: %type%</div>
<div class="default">Default value: %default%</div>
<div class="explanation">
%explanation%
</div>
</div>

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Installing hermes
NOTE: this file has been generated from the source file
http://www.hermes-project.com/pages/installing-hermes
To install and configure a fully working hermes, you have to follow these
steps:
* Install_hermes
* Configure_hermes
* Change_your_current_SMTP_server_to_another_port
Install hermes
=================
If you are going to install from source, you first need to have sqlite3
installed with it's corresponding development package (usually sqlite3-devel or
sqlite3-dev). If you want to install hermes with SSL support, you also need
openssl with it's development headers (usually openssl-devel or openssl-dev).
- From source
If you have downloaded a .tar.gz or .tar.bz2 file, the procedure is as follows:
# tar xvfj hermes-1.0.tar.bz2 # extract file
# cd hermes-1.0 # change to the directory
# ./configure # execute configure
# make # compile
# make install # install
- From a source RPM
If you have downloaded a source rpm (.src.rpm) you have to compile it before
installing. To do so, you need the rpmbuild program.
# rpmbuild --rebuild hermes-1.0.src.rpm
After compiling, you should have a binary rpm on /usr/src/rpm/RPMS/i386 (or /
usr/src/redhat/RPMS/i386, depending on your distribution). With this file,
proceed to install the rpm.
- From a binary RPM
If you have downloaded a binary rpm (.rpm), installing should be pretty
straightforward:
# rpm -ihv hermes-1.0.rpm
Configure hermes
===================
This document will show you how to configure hermes in the most common way, but
if you want to read the full help for the hermes options, go to the full
reference_of_hermes_options.
- Config file
The first thing you need is a configuration file. There should be an example
file on /usr/local/share/doc/hermes or /usr/share/doc/hermes called
hermesrc.example. Copy this file to /etc/hermes/ (create the directory first if
needed)
# mkdir /etc/hermes
# cp /usr/share/doc/hermes/hermesrc.example /etc/hermes/hermesrc
Then edit the file, and let's start changing it:
# vi /etc/hermes/hermesrc
- Editing the config
In this section we will be creating a new file from scratch with only the
minimum required to get hermes working.
First, let's specify the user and group to drop privileges to:
user = nobody
group = nobody
Now let's configure where the greylisting database is saved (defaults to /var/
hermes/greylisting.db).
database_file = /var/hermes/greylisting.db
The only thing left is to specify the host and port with our real SMTP server:
server_host = localhost
server_port = 2525
After that, save the file and quit, and make sure that the database_file
directory exists and that it is owned by the user and group we specified
earlier
# mkdir /var/hermes
# chown nobody:nobody /var/hermes
If you have compiled hermes with SSL support, you have to configure the
certificate file and the private key
private_key_file = /etc/hermes/hermes.key
certificate_file = /etc/hermes/hermes.cert
Now we have to generate the key file and the certificate. To do this we will
use the openssl tool "openssl"
# openssl genrsa 1024 > /etc/hermes/hermes.key
Generating RSA private key, 1024 bit long modulus
...................................................++++++
.......++++++
e is 65537 (0x10001)
# openssl req -new -x509 -nodes -sha1 -days 365 -key /etc/hermes/hermes.key > /etc/hermes/hermes.cert
(at this point, openssl will ask lots of questions about your contact
information, organization, and the like. Once it's over, the certificate will
be generated)
Our resulting file looks like this:
user = nobody
group = nobody
database_file = /var/hermes/greylisting.db
server_host = localhost
server_port = 2525
private_key_file = /etc/hermes/hermes.key
certificate_file = /etc/hermes/hermes.cert
Change your server's port
============================
Changing the port of your SMTP server is a very different proccess depending on
your SMTP software, although they basically involve editing a file to change
the port number from 25 (default) to another port number. This document will
show you how to change the port number from 25 to 2525, which is hermes'
default. If your server's software is not listed here, try to search for
"<software-name> change default port" (i.e. "sendmail change default port") in
your favourite search engine.
- Sendmail
To change sendmail port, edit your sendmail.mc file (usually on /etc/mail) and
edit the line that says:
DAEMON_OPTIONS(`Port=smtp, Name=MTA')
and change the Port from smtp to 2525
DAEMON_OPTIONS(`Port=2525, Name=MTA')
After that type make to rebuild sendmail.cf
# make
And restart sendmail.
Of course, you can always edit the sendmail.cf directly, but if you know how/
what to change, then you don't need this help.
- Postfix
If you are using postfix, edit /etc/postfix/master.cf and change the line that
reads
smtp inet n - n - - smtpd
to read
2525 inet n - n - - smtpd
After that, restart postfix.
- Qmail
The easiest way to configure qmail's listening port is to edit /etc/services
and change the line that says
smtp 25/tcp mail
to
smtp 2525/tcp mail
and restart qmail.

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#!/usr/bin/perl -w
# this small script generates the Configfile class from the
# Configfile.cpp.in and Configfile.h.in. this way when we want
# to add a new option to the config file, we just have to put it
# on Configfile.tmpl and automagically it will appear on our code
# It will also generate an example hermesrc from the same info.
# 2007-04-17 Now it also generates an html document for our webpage
my $hvar="";
my $cppvar1="",$cppvar2="",$cppvar3="",$conf_example="",$htmlvar="";
open HTMLIN, "<../docs/hermes-options.html.in";
$htmltempl=join("",<HTMLIN>);
close HTMLIN;
while(<>)
{
chomp;
if(! /^#/ && ! /^\t*$/ && ! /^\*/)
{
s/^\s+//;s/\s+$//;
@_=split ",";
my $camelcased=&camel_case($_[1]);
my $type=$_[0];
$type="list<string>" if($type =~ /list/);
$hvar1.="$type $_[1];\n";
$hvar2.="$type& get$camelcased();\n";
if($type =~ /list/)
{
$cppvar1.="$_[1]=Configfile::parseAsList($_[2]);\n";
}
else
{
$cppvar1.="$_[1]=$_[2];\n";
}
$cppvar2.="PARSE_".uc($_[0])."(\"$_[1]\",$_[1])\n";
$cppvar3.="GET_VAR(get$camelcased,$_[1],$type&)\n";
$conf_example.="$_[1] = $_[2]\n\n";
my $htmltemp=$htmltempl;
$htmltemp =~ s/%type%/$_[0]/;
$htmltemp =~ s/%name%/$_[1]/g;
$htmltemp =~ s/%default%/$_[2]/;
$htmltemp =~ s/%explanation%/$htmlexpl/;
$htmlexpl="";
$htmlvar.=$htmltemp;
}
else
{
if(/^\*clean\*$/) # clean restarts our htmlexpl contents
{
$htmlexpl="";
}
else
{
if(/^\*/)
{
s/^\*$//;
s/^\*/#/;
$conf_example.="$_\n";
chomp;
s/^#//;
s/>/&gt;/;
$htmlexpl.="$_\n";
}
}
}
}
chomp $cppvar1;
chomp $cppvar2;
chomp $cppvar3;
chomp $hvar1;
chomp $hvar2;
chomp $conf_example;
open CPPIN, "<Configfile.cpp.in";
$cppstr=join("",<CPPIN>);
close CPPIN;
open CPPOUT, ">Configfile.cpp";
$cppstr =~ s/%templ_default_values%/$cppvar1/;
$cppstr =~ s/%templ_parsevars%/$cppvar2/;
$cppstr =~ s/%templ_getmethods%/$cppvar3/;
print CPPOUT $cppstr;
close CPPOUT;
open HIN, "<Configfile.h.in";
$hstr=join("",<HIN>);
close HIN;
open HOUT, ">Configfile.h";
$hstr =~ s/%templ_privateattribs%/$hvar1/;
$hstr =~ s/%templ_publicmethods%/$hvar2/;
print HOUT $hstr;
close HOUT;
open RCEX, ">../dists/hermesrc.example";
print RCEX $conf_example;
close RCEX;
open HTML, ">../docs/hermes-options.html";
print HTML $htmlvar;
close HTML;
sub camel_case()
{
my $str=shift;
my $outstr="";
for($i=0;$i<length($str);$i++)
{
my $letter=substr($str,$i,1);
if($letter eq "_")
{
$i++;
$outstr.=uc(substr($str,$i,1));
}
else
{
$outstr.=$letter;
}
}
return ucfirst($outstr);
}

172
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/**
* hermes antispam proxy
* Copyright (C) 2006, 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* @author Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*/
#include "Configfile.h"
/**
* default config
*
*/
Configfile::Configfile()
{
%templ_default_values%
}
void Configfile::parse(string file)
{
ifstream f;
char line[255];
int equalpos;
f.open(file.c_str(),ios::in);
while(!f.eof())
{
f.getline(line,255);
string l=Utils::trim(line);
if('#'!=l[0]&&l!=""&&l.find("="))
{
equalpos=l.find("=");
string option=Utils::trim(l.substr(0,equalpos));
string value=Utils::trim(l.substr(equalpos+1));
#ifdef REALLY_VERBOSE_DEBUG
cout << l << endl;
cout << option << "->" << value << endl;
#endif //REALLY_VERBOSE_DEBUG
//this is a bit of a hack, but simplifies a lot this function
#define PARSE_INT(x,y) if(x==option) y=Configfile::parseAsInt(value); else
#define PARSE_BOOL(x,y) if(x==option) y=Configfile::parseAsBool(value); else
#define PARSE_STRING(x,y) if(x==option) y=Configfile::parseAsString(value); else
#define PARSE_LIST(x,y) if(x==option) y=Configfile::parseAsList(value); else
%templ_parsevars%
{
throw Exception("Option \""+option+"\" with value \""+value+"\" is not recognized",__FILE__,__LINE__);
}
#undef PARSE_INT
#undef PARSE_BOOL
#undef PARSE_STRING
#undef PARSE_LIST
}
}
#ifndef WIN32
uid=Utils::usertouid(user);
gid=Utils::grouptogid(group);
#endif //WIN32
f.close();
}
//again, this is a BIG HACK, but it simplifies code a lot
#define GET_VAR(x,y,z) z Configfile::x(){ return y;}
GET_VAR(getUid,uid,int)
GET_VAR(getGid,gid,int)
%templ_getmethods%
#undef GET_VAR
void Configfile::validateConfig()
{
#ifndef WIN32
//check if we are root if we want to bind to a port lower than 1024
if(getuid()!=0&&listening_port<1024)
throw Exception(_("You can't bind to a port lower than 1024 without being root"),__FILE__,__LINE__);
#endif //WIN32
#ifdef HAVE_SSL
//check if ssl is usable
if(!Utils::file_exists(certificate_file))
throw Exception("Certificate file "+certificate_file+" doesn't exist.\nTo generate a certificate look in hermesrc.example, there is an example there.",__FILE__,__LINE__);
if(!Utils::file_exists(private_key_file))
throw Exception("Private key file "+private_key_file+" doesn't exist.\nTo generate a private key look in hermesrc.example, there is an example there.",__FILE__,__LINE__);
#endif //HAVE_SSL
#ifndef WIN32
//check if chroot dir exist //TODO: check that files needed in chroot exist
//for now only /etc/resolv.conf, but we're working on it :-D
if(""!=chroot&&!Utils::dir_exists(chroot))
throw Exception("Directory "+chroot+" doesn't exist, can't chroot to it.",__FILE__,__LINE__);
#endif //WIN32
//check if we have submit_stats on but no user and password
if(getSubmitStats()&&(""==getSubmitStatsUsername()||""==getSubmitStatsPassword()))
throw Exception("You have configured hermes to send stats, but have not configured a username or password.\n"
"If you don't have one, go to http://www.hermes-project.com and register there",__FILE__,__LINE__);
#ifndef HAVE_SSL
//check if we have activated submit_stats_ssl not having ssl activated
if(getSubmitStatsSsl())
throw Exception("You have configured stats submission through SSL, but hermes was compiled without SSL support",__FILE__,__LINE__);
#endif //HAVE_SSL
}
string Configfile::parseAsString(string str)
{
//remove "" round the string
if('"'==str[0])
str=str.substr(1);
if('"'==str[str.length()-1])
str=str.substr(0,str.length()-1);
return str;
}
bool Configfile::parseAsBool(string str)
{
if("yes"==str||"on"==str||"1"==str||"true"==str)
return true;
else
return false;
}
long int Configfile::parseAsInt(string str)
{
long int value;
errno=0; //to know why we do this, read NOTES on strtol(3)
value=strtol(str.c_str(),NULL,10);
if(errno)
throw Exception("Error parsing as int ("+Utils::errnotostrerror(errno)+")",__FILE__,__LINE__);
return value;
}
list<string> Configfile::parseAsList(string str)
{
list<string> tmpList;
string::size_type startpos=0,endpos=0,len;
string tmpstr;
str=Configfile::parseAsString(str); //remove quotes around string
len=str.length();
while(startpos<len&&string::npos!=endpos)
{
endpos=str.find(',',startpos);
if(string::npos==endpos)
tmpstr=str.substr(startpos);
else
tmpstr=str.substr(startpos,endpos-startpos);
tmpList.push_back(Utils::trim(tmpstr));
startpos=endpos+1;
}
return tmpList;
}

52
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/**
* hermes antispam proxy
* Copyright (C) 2006, 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* @author Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*/
#ifndef CONFIGFILE_H
#define CONFIGFILE_H
#include "hermes.h"
#include <list>
#include <string>
#include <iostream>
#include <fstream>
#include "Utils.h"
using namespace std;
class Configfile
{
private:
static string parseAsString(string);
static bool parseAsBool(string);
static long parseAsInt(string);
static list<string> parseAsList(string);
int uid;
int gid;
%templ_privateattribs%
public:
Configfile();
void parse(string);
void validateConfig();
int getUid();
int getGid();
%templ_publicmethods%
};
#endif //CONFIGFILE_H

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#include "../config.h"
* comments MUST begin with a #.
*
* boolean options recognise (true, 1, on, yes) as true
* and anything else as false
*
* string literals can be surrounded by the " character,
* but everything else CANNOT be
*
*clean*
#ifndef WIN32
* whether to fork to the background. initscripts require
* this to be true most of the time.
bool,background,true
* chroot to this directory on startup.
* this path is ABSOLUTE, it WON'T work with a relative path,
* because we are chrooting to the dir BEFORE chrooting, as a
* security measure.
* to disable chrooting, use an empty string (default).
string,chroot,""
* drop privileges once running? recomended.
bool,drop_privileges,true
* user to drop privileges to.
string,user,"nobody"
* group to drop privileges to.
string,group,"nobody"
* write a pid file with the pid of the main hermes server.
* if you set background=true above, this will write the pid
* of the forked hermes, not the original.
string,pid_file,"/var/run/hermes.pid"
#endif //WIN32
* the port where hermes will listen for new connection.
* if you are going to use a port lower than 1024 (almost always,
* smtp is 25, smtps is 465 and delivery is 587), then you need
* to run as root (you can drop privileges) or with setUID active.
int,listening_port,25
* the ip to bind to. if you leave it empty (default), then it
* listens on all available ips
string,bind_to,""
* the host of the real smtp server.
* if your server is qmail and you have the AUTH patch,
* DON'T use localhost, use the external IP instead.
string,server_host,"localhost"
* the port for the real smtp server.
int,server_port,2525
* database file to use.
* if you are chrooting, the path is relative to the chroot:
* real filepath = chroot + database_file
#ifdef WIN32
string,database_file,"greylisting.db"
#else
string,database_file,"/var/hermes/greylisting.db"
#endif //WIN32
* whether to use greylisting.
* greylisting will slightly delay your emails (configurable, see below)
* to stop most spam. is the most efective technique in use by hermes.
bool,greylist,true
* whether to throttle connection.
* it will force some spammers (the more impatient ones) to drop the connection
* and leave you alone.
bool,throttle,true
* throttling time
* this is the time (in seconds) that hermes will wait between each sent line.
* don't set this too high (more than 3), as that will drop MANY connections
int,throttling_time,1
* whether we should check if there is data before we send the SMTP banner.
* if there is data the email is almost certainly spam.
bool,allow_data_before_banner,false
* dns blacklist domain list to check.
* if this is empty (default) hermes will not check anything, effectively disabling
* dns blacklisting.
* recommended value is "zen.spamhaus.org"
list,dns_blacklist_domains,""
* percentage of domains that have to blacklist an ip before considering it blacklisted.
* for example if you need a domain to be listed in only half of the blacklists to be considered
* as listed, just define dns_blacklist_percentage as 50 (50%)
int,dns_blacklist_percentage,100
* dns whitelist domain to check.
* if this is empty (default) hermes will not check anything, effectively disabling
* dns whitelisting.
* this lists should only list hosts that have a history of NOT sending spam.
* recommended value is "list.dnswl.org"
list,dns_whitelist_domains,""
* percentage of domains that have to whitelist an ip before considering it whitelisted.
* for example if you need a domain to be listed in only half of the whitelists to be considered
* as listed, just define dns_whitelist_percentage as 50 (50%).
int,dns_whitelist_percentage,100
* time to delay the initial SMTP banner
int,banner_delay_time,5
#ifdef REALLY_VERBOSE_DEBUG
* email to notify exceptions to.
* CAVEAT: the code that does this is VERY BUGGY and VERY VERBOSE, don't use unless you
* are a developer looking for a bug.
string,notify_to,""
#endif //REALLY_VERBOSE_DEBUG
* greylisting options.
*
*clean*