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# ============================================================ |
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# |
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# Mail::Audit::Dispatch v0.05 |
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# A simple mail filter done in perl |
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# with the Perl-module "Mail::Audit" |
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# available from CPAN. |
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# |
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# $Id: dispatchmail,v 1.3 2003/01/22 07:16:51 root Exp $ |
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# |
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# ============================================================ |
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# $Log: dispatchmail,v $ |
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# Revision 1.3 2003/01/22 07:16:51 root |
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# + sub traceEntry |
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# + further refactorings |
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# |
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# Revision 1.2 2003/01/22 05:38:44 collector |
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# + prepared refactoring to 'dispatchmail' |
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# |
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# ============================================================ |
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|
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|
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package Mail::Audit::Dispatch; |
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|
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use strict; |
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# don't use warnings; |
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|
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use base qw( DesignPattern::Object ); |
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|
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|
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use Mail::Audit; |
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use Data::Dumper; |
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|
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|
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use org::netfrag::shortcuts qw( now ); |
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|
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|
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my $LOG = 1; # writes reports to logfile |
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my $VERBOSE = 1; # writes reports to STDOUT |
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my $TRACE = 1; # writes contents of messages to logfile |
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|
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|
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sub _init { |
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my $self = shift; |
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$self->_init_options(); |
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$self->_init_settings(); |
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$self->_override_settings(); |
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} |
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|
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sub _init_options { |
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my $self = shift; |
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$self->{options}->{base} = $self->{base}; |
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$self->{options}->{base} ||= $ENV{HOME}; |
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$self->{options}->{base} ||= $ENV{PWD}; |
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$self->{options}->{rules} = $self->{rules}; |
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} |
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|
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# - - - - - - - - - - - - - - - - - - - - |
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# |
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# targets |
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# |
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# declare and initialize some variables |
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# these are mostly base paths |
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# mail should be delivered to |
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# |
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# - - - - - - - - - - - - - - - - - - - - |
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sub _init_paths { |
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my $self = shift; |
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$self->{settings}->{USER} = $ENV{USER}; |
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$self->{settings}->{HOME} = $self->{options}->{base}; |
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$self->{settings}->{MAILDIR} = "$HOME/Mail"; |
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$self->{settings}->{RULESFILE} = "$HOME/.dispatchmailrc.pm"; |
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#$self->{settings}->{LOCKFILE} = "$HOME/.procmail.lockfile"; |
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$self->{settings}->{LOCKFILE} = "$HOME/.dispatchmail.lockfile"; |
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$self->{settings}->{LOGFILE} = "$MAILDIR/.dispatchmail.log"; |
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$self->{settings}->{DEFAULT} = "$MAILDIR/Inbox"; |
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} |
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|
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sub _override_settings { |
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my $self = shift; |
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# override $RULESFILE if given as option on the command line |
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$self->{settings}->{RULESFILE} = |
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$self->{options}->{rules} if $self->{options}->{rules}; |
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# change logfile |
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$self->{settings}->{LOGFILE} = |
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"recievemail-emerg.log" if (! -e $self->{settings}->{MAILDIR}); |
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|
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$self->{settings}->{USER} ||= ''; |
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} |
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|
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|
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|
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# - - - - - - - - - - - - - - - - - - - - |
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# main |
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# - - - - - - - - - - - - - - - - - - - - |
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|
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# "jump" into processing of new incoming mail and get a "handler" to this mail |
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my $incoming = Mail::Audit->new; |
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|
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sub traceEntry { |
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s2f('-' x 40 . ' TRACE ' . '-' x 10); |
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s2f("From: " . gchomp($incoming->from)); |
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s2f("To: " . gchomp($incoming->to)); |
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s2f("Subject: " . gchomp($incoming->subject)); |
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s2f('-' x 40 . ' TRACE ' . '-' x 10); |
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} |
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|
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|
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# 0.a. pre flight tracing |
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my $now = now(); |
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report("$0 running at $now for user '$USER'."); |
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traceEntry() if $TRACE; |
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|
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# 0.b. pre flight checks |
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|
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# TODO: check if $HOME is empty |
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|
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# check if $HOME exists |
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if (! -e $MAILDIR) { |
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my $msg = "delivery failed, base directory $MAILDIR does not exist"; |
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report($msg); |
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forward_delivery(); |
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} |
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|
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# 1. include rules or fallback |
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# check if $RULESFILE exists |
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if (-f $RULESFILE) { |
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report("Loading rules from \"$RULESFILE\"."); |
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require $RULESFILE; |
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} else { |
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#die("$RULESFILE doesn't exist"); |
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report("Configured rulesfile \"$RULESFILE\" doesn't exist."); |
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forward_delivery(); |
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} |
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|
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# 2. export required stuff to rules namespace |
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export_symbols(); |
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|
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# 3. run dispatcher |
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report("Running \"rules::dispatch\"."); |
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rules::dispatch(); |
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|
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# 4. dispatcher didn't do anything |
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report("dispatcher could not apply any filter, using default delivery"); |
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|
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# the default-handler: simply accept all mails and route them to "/var/spool/mail" |
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# $incoming->accept(); |
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|
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# if you want to reject all mails coming through to here, do a ... |
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# $incoming->reject; |
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|
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# catch all mails and route them to a "DEFAULT"-inbox |
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jaccept($DEFAULT); |
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|
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|
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|
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|
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|
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# - - - - - - - - - - - - - - - - - - - - |
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# tracing & reporting |
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# - - - - - - - - - - - - - - - - - - - - |
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sub s2f { |
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my $str = shift; |
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open(FH, '>>' . $LOGFILE); |
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print FH $str, "\n"; |
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close(FH); |
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} |
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|
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sub report { |
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my $msg = shift; |
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# TODO: tracing, debugging |
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|
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print $msg, "\n" if $VERBOSE; |
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if ($LOG) { |
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s2f($msg); |
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} |
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|
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} |
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|
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# - - - - - - - - - - - - - - - - - - - - |
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# processing mail |
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# - - - - - - - - - - - - - - - - - - - - |
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|
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sub compareTarget { |
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my $pattern = shift; |
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my $ok = 0; |
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$ok = 1 if ($incoming->to =~ m/$pattern/); |
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$ok = 1 if ($incoming->cc =~ m/$pattern/); |
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$ok = 1 if ($incoming->bcc =~ m/$pattern/); |
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return $ok; |
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} |
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|
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sub jaccept { |
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my $deliver_to = shift; |
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|
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report("ACCEPT: $deliver_to"); |
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|
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# check deliver_to path |
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if (! -e $deliver_to) { |
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report("deliver_to path \"$deliver_to\" doesn't exist"); |
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forward_delivery(); |
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return; |
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} |
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|
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$incoming->accept($deliver_to); |
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} |
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|
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sub accept_spool { |
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my $path = "/var/spool/mail/$USER"; |
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report("defaulting to spool delivery ($path)"); |
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$incoming->accept($path); |
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} |
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|
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sub forward_delivery { |
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report("Forwarding delivery to next handler in queue (probably /var/spool/mail)."); |
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$incoming->accept; |
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} |
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|
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|
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# - - - - - - - - - - - - - - - - - - - - |
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# helper functions |
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# - - - - - - - - - - - - - - - - - - - - |
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|
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sub get_coderef { |
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my $codepack = shift; |
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my $method = shift; |
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$codepack || return '[error]'; |
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$method ||= ''; |
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$method && ($codepack .= '::'); |
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return eval '\&' . $codepack . $method . ';'; |
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} |
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|
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sub export_symbols { |
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# my $callpack = 'rules'; |
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# my @EXPORT = qw( incoming subject MAILDIR jaccept ); |
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# foreach my $sym (@EXPORT) { |
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no strict 'refs'; |
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# *{"${callpack}::$sym"} = get_coderef('main', $sym); |
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# } |
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{ |
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no strict 'refs'; |
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*{"rules::jaccept"} = get_coderef('main', 'jaccept'); |
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*{"rules::report"} = get_coderef('main', 'report'); |
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*{"rules::compareTarget"} = get_coderef('main', 'compareTarget'); |
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} |
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$rules::MAILDIR = $MAILDIR; |
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$rules::incoming = $incoming; |
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} |
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|
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sub gchomp { |
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my $str = shift; |
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chomp($str); |
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return $str; |
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} |
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