From 052f26f3ada1042afa5acadbecc48b487f4e2d52 Mon Sep 17 00:00:00 2001
From: Eric Wong <e@80x24.org>
Date: Sat, 27 Feb 2016 21:57:57 +0000
Subject: move executables to script/ directory

This seems to match more closely with what is expected of Perl
packages based on how blib is used.  Hopefully makes the top-level
source tree less cluttered and things easier-to-find.
---
 script/public-inbox-mda | 111 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100755 script/public-inbox-mda

(limited to 'script/public-inbox-mda')

diff --git a/script/public-inbox-mda b/script/public-inbox-mda
new file mode 100755
index 00000000..24feeb81
--- /dev/null
+++ b/script/public-inbox-mda
@@ -0,0 +1,111 @@
+#!/usr/bin/perl -w
+# Copyright (C) 2013-2015 all contributors <meta@public-inbox.org>
+# License: AGPLv3 or later (https://www.gnu.org/licenses/agpl-3.0.txt)
+#
+# Mail delivery agent for public-inbox, run from your MTA upon mail delivery
+use strict;
+use warnings;
+my $usage = 'public-inbox-mda < rfc2822_message';
+
+use Email::Filter;
+use Email::MIME;
+use Email::Address;
+use File::Path::Expand qw/expand_filename/;
+use IPC::Run qw(run);
+use PublicInbox::MDA;
+use PublicInbox::Filter;
+use PublicInbox::Config;
+
+# n.b: hopefully we can setup the emergency 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 $emergency = $ENV{PI_EMERGENCY} || '~/.public-inbox/emergency/';
+$emergency = expand_filename($emergency);
+
+# this reads the message from stdin
+my $filter = Email::Filter->new(emergency => $emergency);
+my $config = PublicInbox::Config->new;
+
+my $recipient = $ENV{ORIGINAL_RECIPIENT};
+defined $recipient or die "ORIGINAL_RECIPIENT not defined in ENV\n";
+my $dst = $config->lookup($recipient); # first check
+defined $dst or exit(1);
+my $main_repo = $dst->{mainrepo} or exit(1);
+my $filtered; # string dest
+
+if (PublicInbox::MDA->precheck($filter, $dst->{address}) &&
+    do_spamc($filter->simple, \$filtered)) {
+	# update our message with SA headers (in case our filter rejects it)
+	my $msg = Email::MIME->new(\$filtered);
+	$filtered = undef;
+	$filter->simple($msg);
+
+	my $filter_arg;
+	my $fcfg = $dst->{filter};
+	if (!defined $fcfg || $filter eq 'reject') {
+		$filter_arg = $filter;
+	} elsif ($fcfg eq 'scrub') {
+		$filter_arg = undef; # the default for legacy versions
+	} else {
+		warn "publicinbox.$dst->{listname}.filter=$fcfg invalid\n";
+		warn "must be either 'scrub' or 'reject' (the default)\n";
+	}
+
+	if (PublicInbox::Filter->run($msg, $filter_arg)) {
+		# run spamc again on the HTML-free message
+		if (do_spamc($msg, \$filtered)) {
+			$msg = Email::MIME->new(\$filtered);
+			PublicInbox::MDA->set_list_headers($msg, $dst);
+			$filter->simple($msg);
+
+			my ($name, $email, $date) =
+					PublicInbox::MDA->author_info($msg);
+
+			END {
+				index_sync($main_repo) if ($? == 0);
+			};
+
+			local $ENV{GIT_AUTHOR_NAME} = $name;
+			local $ENV{GIT_AUTHOR_EMAIL} = $email;
+			local $ENV{GIT_AUTHOR_DATE} = $date;
+			local $ENV{GIT_COMMITTER_EMAIL} = $recipient;
+			local $ENV{GIT_COMMITTER_NAME} = $dst->{listname};
+
+			$filter->pipe(PublicInbox::MDA->cmd, $main_repo);
+		}
+	}
+} else {
+	# Ensure emergency spam gets spamassassin headers.
+	# This makes it easier to prioritize obvious spam from less obvious
+	if (defined($filtered) && $filtered ne '') {
+		my $drop = Email::MIME->new(\$filtered);
+		$filtered = undef;
+		$filter->simple($drop);
+	}
+}
+exit 0; # goes to emergency
+
+# 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 $? on error).
+sub do_spamc {
+	my ($msg, $out) = @_;
+	eval {
+		my $orig = $msg->as_string;
+		run([qw/spamc -E --headers/], \$orig, $out);
+	};
+
+	return ($@ || $? || !defined($$out) || $$out eq '') ? 0 : 1;
+}
+
+sub index_sync {
+	my ($git_dir) = @_;
+
+	# potentially user-visible, ignore errors:
+	system('git', "--git-dir=$git_dir", 'update-server-info');
+
+	eval {
+		require PublicInbox::SearchIdx;
+		PublicInbox::SearchIdx->new($git_dir, 2)->index_sync;
+	};
+}
-- 
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