/usr/sbin/amavisd-release is in amavisd-new 1:2.6.5-0ubuntu3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | #!/usr/bin/perl -T
#------------------------------------------------------------------------------
# This is amavisd-release, an EXAMPLE quarantine release utility program.
# It uses AM.PDP protocol to send a request to amavisd daemon to release
# a quarantined mail message.
#
# Usage:
# amavisd-release mail_file secret_id [alt_recip1 alt_recip2 ..]
#
# To be placed in amavisd.conf:
# $interface_policy{'SOCK'} = 'AM.PDP';
# $policy_bank{'AM.PDP'} = {protocol=>'AM.PDP'};
# $unix_socketname='/var/amavis/amavisd.sock';
#or:
# $interface_policy{'9998'} = 'AM.PDP';
# $policy_bank{'AM.PDP'} = {protocol=>'AM.PDP'};
# $inet_socket_port = [10024,9998];
#
# To obtain secret_id and quar_type belonging to some mail_id:
# $ mysql mail_log -e \
# 'select secret_id,quar_type,content from msgs where mail_id="W+7uJyXUjw32"'
#
# If secret_id is not available, administrator may choose to skip checking
# of secret_id in the amavisd daemon by setting a configuration variable
# $auth_required_release to false (it defaults to true). If the release
# client program specifies a nonempty secret_id in the request, the secret_id
# will be validated and a request will fail if not valid, regardless of the
# setting of $auth_required_release. Turning off a requirement for a valid
# secret_id widens the right to release to anyone who can connect to amavisd
# socket (Unix or inet). Access to the socket therefore needs to be restricted
# using socket protection (unix socket) or @inet_acl (for inet socket).
#
# Author: Mark Martinec <mark.martinec@ijs.si>
# Copyright (C) 2005-2011 Mark Martinec, All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# * Neither the name of the author, nor the name of the "Jozef Stefan"
# Institute, nor the names of contributors may be used to endorse or
# promote products derived from this software without specific prior
# written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
# OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#(the license above is the new BSD license, and pertains to this program only)
#
# Patches and problem reports are welcome.
# The latest version of this program is available at:
# http://www.ijs.si/software/amavisd/
#------------------------------------------------------------------------------
use warnings;
use warnings FATAL => 'utf8';
no warnings 'uninitialized';
use strict;
use re 'taint';
use IO::Socket;
use Time::HiRes ();
use vars qw($VERSION); $VERSION = 1.501;
use vars qw($log_level $socketname);
$log_level = 1;
# $socketname = '127.0.0.1:9998';
$socketname = '/var/lib/amavis/amavisd.sock';
sub sanitize_str {
my($str, $keep_eol) = @_;
my(%map) = ("\r" => '\\r', "\n" => '\\n', "\f" => '\\f', "\t" => '\\t',
"\b" => '\\b', "\e" => '\\e', "\\" => '\\\\');
if ($keep_eol) {
$str =~ s/([^\012\040-\133\135-\176])/ # and \240-\376 ?
exists($map{$1}) ? $map{$1} :
sprintf(ord($1)>255 ? '\\x{%04x}' : '\\%03o', ord($1))/eg;
} else {
$str =~ s/([^\040-\133\135-\176])/ # and \240-\376 ?
exists($map{$1}) ? $map{$1} :
sprintf(ord($1)>255 ? '\\x{%04x}' : '\\%03o', ord($1))/eg;
}
$str;
}
sub do_log($$) {
my($level, $errmsg) = @_;
print STDERR sanitize_str($errmsg),"\n" if $level <= $log_level;
}
sub proto_decode($) {
my($str) = @_;
$str =~ s/%([0-9a-fA-F]{2})/pack("C",hex($1))/eg;
$str;
}
sub proto_encode($@) {
my($attribute_name,@strings) = @_; local($1);
$attribute_name =~ # encode all but alfanumerics, '_' and '-'
s/([^0-9a-zA-Z_-])/sprintf("%%%02x",ord($1))/eg;
for (@strings) { # encode % and nonprintables
s/([^\041-\044\046-\176])/sprintf("%%%02x",ord($1))/eg;
}
$attribute_name . '=' . join(' ',@strings);
}
sub ask_amavisd($$) {
my($sock,$query_ref) = @_;
my(@encoded_query) =
map { /^([^=]+)=(.*)\z/s; proto_encode($1,$2) } @$query_ref;
do_log(2,'> '.$_) for @encoded_query;
$sock->print( map { $_."\015\012" } (@encoded_query,'') )
or die "Can't write response to socket: $!";
$sock->flush or die "Can't flush on socket: $!";
my(%attr);
local($/) = "\015\012"; # set line terminator to CRLF
# must not use \r and \n, which may not be \015 and \012 on certain platforms
do_log(2,"waiting for response");
while(<$sock>) {
last if /^\015\012\z/; # end of response
if (/^ ([^=\000\012]*?) (=|:[ \t]*) ([^\012]*?) \015\012 \z/xsi) {
my($attr_name) = proto_decode($1);
my($attr_val) = proto_decode($3);
if (!exists $attr{$attr_name}) { $attr{$attr_name} = [] }
push(@{$attr{$attr_name}}, $attr_val);
}
}
if (!defined($_) && $! != 0) { die "read from socket failed: $!" }
\%attr;
}
sub release_file($$$@) {
my($sock,$mail_file,$secret_id,@alt_recips) = @_;
my($fn_path,$fn_prefix,$mail_id,$fn_suffix,$part_tag); local($1,$2,$3,$4);
$part_tag = $1 if $mail_file =~ s/ \[ ( [^\]]* ) \] \z//xs;
if ($mail_file =~ m{^ ([^/].*/)? ([A-Z0-9][A-Z0-9._-]*[_-])?
([A-Z0-9][A-Z0-9_+-]{10}[A-Z0-9]) (\.gz)? \z}xsi) {
($fn_path,$fn_prefix,$mail_id,$fn_suffix) = ($1,$2,$3,$4);
} elsif ($mail_file =~ m{^ ([^/].*/)? () ([A-Za-z0-9$._=+-]+?) (\.gz)?\z}xs){
($fn_path,$fn_prefix,$mail_id,$fn_suffix) = ($1,$2,$3,$4); # old style
} else {
usage("Invalid quarantine ID: $mail_file");
}
my($quar_type) =
$fn_suffix eq '.gz' ? 'Z' : $fn_path ne '' ? 'F' : '';
my($request_type) = $0 =~ /\breport\z/i ? 'report'
: $0 =~ /\brequeue\z/i ? 'requeue' : 'release';
my(@query);
push(@query, "request=$request_type");
push(@query, "mail_id=$mail_id");
push(@query, "quar_type=$quar_type") if $quar_type ne '';
push(@query, "secret_id=$secret_id") if $secret_id ne '';
push(@query, "mail_file=$mail_file") if $quar_type =~ /^[FZB]\z/;
push(@query, "partition_tag=$part_tag") if $part_tag ne '';
if (@alt_recips) { # override original recipients if list is nonempty
push(@query, map {"recipient=$_"} @alt_recips);
}
my($attr_ref) = ask_amavisd($sock,\@query);
$attr_ref && %$attr_ref or die "Invalid response received";
for my $attr_name (keys %$attr_ref) {
for my $attr_val (@{$attr_ref->{$attr_name}})
{ do_log(2,"< $attr_name=$attr_val") }
}
do_log(0,$_) for (@{$attr_ref->{'setreply'}});
# may do another release request on the same session if needed ...
}
sub usage(;$) {
my($msg) = @_;
print STDERR $msg,"\n\n" if $msg ne '';
my($prog) = $0; $prog =~ s{^.*/(?=[^/]+\z)}{};
print STDERR "$prog version $VERSION\n";
die "Usage: \$ $prog mail_file [secret_id [alt_recip1 alt_recip2 ...]]\n".
" or to read request lines from stdin: \$ $prog -\n";
}
# Main program starts here
my($sock,$mail_file,$secret_id);
@ARGV >= 1 or usage("Not enough arguments");
$mail_file = shift(@ARGV); # quarantine file id or '-'
if ($mail_file eq '-') { @ARGV==0 or usage("Extra arguments after '-'") }
my($is_inet) = $socketname=~m{^/} ? 0 : 1; # simpleminded: unix vs. inet sock
if ($is_inet) { # inet socket
$sock = IO::Socket::INET->new($socketname)
or die "Can't connect to INET socket $socketname: $!";
} else { # unix socket
$sock = IO::Socket::UNIX->new(Type => SOCK_STREAM)
or die "Can't create UNIX socket: $!";
$sock->connect( pack_sockaddr_un($socketname) )
or die "Can't connect to UNIX socket $socketname: $!";
}
if ($mail_file eq '-') {
undef $!;
while (<>) { # read from STDIN: mail_file [secret_id [alt_recips...]]
chomp;
next if /^[ \t]*(#.*)?$/; # skip empty lines or comments
my($mail_file, $secret_id, @alt_recips) = split(' ');
release_file($sock,$mail_file,$secret_id,@alt_recips);
}
$!==0 or die "Error reading from STDIN: $!";
} else {
# assume empty secret_id if the second arg looks like e-mail addr
$secret_id = $ARGV[0]=~/\@/ ? '' : shift(@ARGV);
release_file($sock,$mail_file,$secret_id,@ARGV);
}
$sock->close or die "Error closing socket: $!";
close(STDIN) or die "Error closing STDIN: $!";
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