It would help if I deleted the unused file too...
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Richard Siddall
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#!/usr/bin/perl
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# $Id: file 478 2005-07-19 07:40:16Z aqua $
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=head1 NAME
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file_connection - Simple per session log-to-file logging for qpsmtpd
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=head1 DESCRIPTION
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The 'file_connection' logging plugin for qpsmtpd records qpsmtpd log messages into a
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file (or a named pipe, if you prefer.)
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The file is reopened for each connection. To facilitate automatic
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logfile switching the filename can contain strftime conversion
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specifiers, which are expanded immediately before opening the file. This
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ensures that a single connection is never split across logfiles.
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The list of supported conversion specifiers depends on the strftime
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implementation of your C library. See strftime(3) for details.
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Additionally, %i exands to a (hopefully) unique session-id.
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=head1 CONFIGURATION
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To enable the logging plugin, add a line of this form to the qpsmtpd plugins
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configuration file:
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=over
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logging/file_connection [loglevel I<level>] I<path>
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For example:
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logging/file_connection loglevel LOGINFO /var/log/qpsmtpd/%Y-%m-%d
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=back
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Multiple instances of the plugin can be configured by appending :I<N> for any
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integer(s) I<N>, to log to multiple files simultaneously, e.g. to log critical
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errors and normally verbose logs elsewhere.
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The following optional configuration setting can be supplied:
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=over
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=item loglevel I<loglevel>
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The internal log level below which messages will be logged. The I<loglevel>
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given should be chosen from this list. Priorities count downward (for example,
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if LOGWARN were selected, LOGERROR, LOGCRIT and LOGEMERG messages would be
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logged as well):
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=over
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=item B<LOGDEBUG>
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=item B<LOGINFO>
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=item B<LOGNOTICE>
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=item B<LOGWARN>
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=item B<LOGERROR>
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=item B<LOGCRIT>
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=item B<LOGALERT>
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=item B<LOGEMERG>
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=back
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=back
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The chosen I<path> should be writable by the user running qpsmtpd; it will be
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created it did not already exist, and appended to otherwise.
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=head1 AUTHOR
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Peter J. Holzer <hjp@hjp.at>, based on a plugin by
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Devin Carraway <qpsmtpd@devin.com>
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=head1 LICENSE
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Copyright (c) 2005, Devin Carraway.
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This plugin is licensed under the same terms as the qpsmtpd package itself.
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Please see the LICENSE file included with qpsmtpd for details.
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=cut
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use strict;
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use warnings;
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use IO::File;
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#use Sys::Hostname;
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use POSIX qw(strftime);
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sub register {
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my ($self, $qp, @args) = @_;
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my %args;
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$self->{_loglevel} = LOGWARN;
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while (1) {
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last if !@args;
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if (lc $args[0] eq 'loglevel') {
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shift @args;
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my $ll = shift @args;
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if (!defined $ll) {
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warn "Malformed arguments to logging/file_connection plugin";
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return;
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}
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if ($ll =~ /^(\d+)$/) {
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$self->{_loglevel} = $1;
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}
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elsif ($ll =~ /^(LOG\w+)$/) {
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$self->{_loglevel} = log_level($1);
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defined $self->{_loglevel} or $self->{_loglevel} = LOGWARN;
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}
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}
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else { last }
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}
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unless (@args && $args[0]) {
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warn "Malformed arguments to syslog plugin";
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return;
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}
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$self->{_logfile} = join(' ', @args);
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$self->{_log_session_id_prefix} = sprintf("%08x%04x", time(), $$);
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$self->{_log_session_id_counter} = 0;
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$self->register_hook('logging', 'write_log');
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$self->register_hook('pre-connection', 'open_log');
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$self->open_log($qp);
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}
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sub open_log {
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my ($self, $qp) = @_;
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my $output = $self->{_logfile};
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$self->{_log_session_id} =
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$self->{_log_session_id_prefix} . "." .
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++$self->{_log_session_id_counter};
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$output =~ s/%i/$self->{_log_session_id}/;
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$output = strftime($output, localtime);
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#print STDERR "open_log: output=$output, uid=$>\n";
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if ($output =~ /^\s*\|(.*)/) {
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unless ($self->{_f} = new IO::File "|$1") {
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warn "Error opening log output to command $1: $!";
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return;
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}
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} elsif ($output =~ /^(.*)/) { # detaint
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unless ($self->{_f} = new IO::File ">>$1") {
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warn "Error opening log output to path $1: $!";
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return;
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}
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}
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$self->{_f}->autoflush(1);
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return DECLINED;
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}
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sub write_log {
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my ($self, $txn, $trace, $hook, $plugin, @log) = @_;
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return DECLINED if $trace > $self->{_loglevel};
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return DECLINED if defined $plugin and $plugin eq $self->plugin_name;
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$self->open_log unless($self->{_f});
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my $f = $self->{_f};
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print STDERR "no open file\n" unless (defined $f);
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print $f join(" ",
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strftime("%Y-%m-%dT%H:%M:%S%z", localtime), $self->{_log_session_id},
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(defined $plugin ? " $plugin plugin:" :
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defined $hook ? " running plugin ($hook):" : ""),
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@log), "\n";
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return DECLINED;
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}
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# vi: tabstop=4 shiftwidth=4 expandtab:
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