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#!/usr/bin/perl -w
# Copyright (C) 2013, Eric Wong <normalperson@yhbt.net> and all contributors
# License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
use strict;
use warnings;
my $usage = 'public-inbox-mda < rfc2822_message';
use Email::Filter;
use Email::Address;
use File::Path::Expand qw/expand_filename/;
use IPC::Run qw(run);
use constant MDA => 'ssoma-mda';
use PublicInbox;
use PublicInbox::Filter;
use PublicInbox::Config;
# n.b: hopefully we can setup the failbox path without bailing due to
# user error, we really want to setup the emergency destination ASAP
# in case there's bugs in our code or user error.
my $failbox = $ENV{PI_FAILBOX} || '~/public-inbox-fail.mbox';
$failbox = expand_filename($failbox);
# this reads the message from stdin
my $filter = Email::Filter->new(emergency => $failbox);
my $config = PublicInbox::Config->new;
my $recipient = $ENV{RECIPIENT};
defined $recipient or die "RECIPIENT not defined in ENV\n";
my $dst = $config->lookup($recipient);
defined $dst or exit(1);
my $main_repo = $dst->{mainrepo} or exit(1);
my $filtered; # string dest
if (PublicInbox->precheck($filter, $recipient) &&
do_spamc($filter->simple, \$filtered)) {
# update our message with SA headers (in case our filter rejects it)
my $simple = Email::Simple->new($filtered);
$filtered = undef;
$filter->simple($simple);
if (PublicInbox::Filter->run($simple)) {
# run spamc again on the HTML-free message
if (do_spamc($simple, \$filtered)) {
$simple = Email::Simple->new($filtered);
$filter->simple($simple);
my $from = $filter->from;
my @from = Email::Address->parse($from);
my $name = $from[0]->name;
defined $name or $name = "";
my $email = $from[0]->address;
defined $email or $email = "";
local $ENV{GIT_AUTHOR_NAME} = $name;
local $ENV{GIT_AUTHOR_EMAIL} = $email;
local $ENV{GIT_AUTHOR_DATE} = $simple->header("Date");
local $ENV{GIT_COMMITTER_EMAIL} = $recipient;
local $ENV{GIT_COMMITTER_NAME} = $dst->{listname};
$filter->pipe(MDA, '-1', $main_repo);
}
}
}
exit 0; # goes to failbox
# we depend on "report_safe 0" in /etc/spamassassin/*.cf with --headers
# not using Email::Filter->pipe here since we want the stdout of
# the command even on failure (spamc will set $? on error).
sub do_spamc {
my ($simple, $out) = @_;
eval {
my $orig = $simple->as_string;
run([qw/spamc -E --headers/], \$orig, $out);
};
return ($@ || $? || !defined($$out) || length($$out) == 0) ? 0 : 1;
}
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