[Rspamd] Create BCC plugin
andryyy
parent
735bcb2f55
commit
c8955284a2
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@ -161,8 +161,9 @@ virtual_alias_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_alias_maps.
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virtual_gid_maps = static:5000
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virtual_mailbox_base = /var/vmail/
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virtual_mailbox_domains = proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_domains_maps.cf
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recipient_bcc_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_recipient_bcc_maps.cf
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sender_bcc_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_sender_bcc_maps.cf
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# -- moved to rspamd on 2021-06-01
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#recipient_bcc_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_recipient_bcc_maps.cf
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#sender_bcc_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_sender_bcc_maps.cf
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recipient_canonical_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_recipient_canonical_maps.cf
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recipient_canonical_classes = envelope_recipient
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virtual_mailbox_maps = proxy:mysql:/opt/postfix/conf/sql/mysql_virtual_mailbox_maps.cf
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@ -0,0 +1,88 @@
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<?php
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// File size is limited by Nginx site to 10M
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// To speed things up, we do not include prerequisites
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header('Content-Type: text/plain');
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require_once "vars.inc.php";
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// Do not show errors, we log to using error_log
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ini_set('error_reporting', 0);
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// Init database
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//$dsn = $database_type . ':host=' . $database_host . ';dbname=' . $database_name;
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$dsn = $database_type . ":unix_socket=" . $database_sock . ";dbname=" . $database_name;
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$opt = [
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_EMULATE_PREPARES => false,
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];
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try {
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$pdo = new PDO($dsn, $database_user, $database_pass, $opt);
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}
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catch (PDOException $e) {
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error_log("BCC MAP SQL ERROR: " . $e . PHP_EOL);
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http_response_code(501);
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exit;
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}
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function parse_email($email) {
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if(!filter_var($email, FILTER_VALIDATE_EMAIL)) return false;
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$a = strrpos($email, '@');
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return array('local' => substr($email, 0, $a), 'domain' => substr(substr($email, $a), 1));
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}
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if (!function_exists('getallheaders')) {
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function getallheaders() {
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if (!is_array($_SERVER)) {
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return array();
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}
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$headers = array();
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foreach ($_SERVER as $name => $value) {
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if (substr($name, 0, 5) == 'HTTP_') {
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$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
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}
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}
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return $headers;
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}
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}
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// Read headers
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$headers = getallheaders();
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// Get rcpt
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$rcpt = $headers['Rcpt'];
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// Get from
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$from = $headers['From'];
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// Remove tags
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$rcpt = preg_replace('/^(.*?)\+.*(@.*)$/', '$1$2', $rcpt);
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$from = preg_replace('/^(.*?)\+.*(@.*)$/', '$1$2', $from);
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try {
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if (!empty($rcpt)) {
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$stmt = $pdo->prepare("SELECT `bcc_dest` FROM `bcc_maps` WHERE `type` = 'rcpt' AND `local_dest` = :local_dest AND `active` = '1'");
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$stmt->execute(array(
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':local_dest' => $rcpt
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));
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$bcc_dest = $stmt->fetch(PDO::FETCH_ASSOC)['bcc_dest'];
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if (!empty($bcc_dest) && filter_var($bcc_dest, FILTER_VALIDATE_EMAIL)) {
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error_log("BCC MAP: returning ". $bcc_dest . " for " . $rcpt . PHP_EOL);
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http_response_code(201);
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echo trim($bcc_dest);
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exit;
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}
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}
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if (!empty($from)) {
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$stmt = $pdo->prepare("SELECT `bcc_dest` FROM `bcc_maps` WHERE `type` = 'sender' AND `local_dest` = :local_dest AND `active` = '1'");
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$stmt->execute(array(
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':local_dest' => $from
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));
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$bcc_dest = $stmt->fetch(PDO::FETCH_ASSOC)['bcc_dest'];
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if (!empty($bcc_dest) && filter_var($bcc_dest, FILTER_VALIDATE_EMAIL)) {
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error_log("BCC MAP: returning ". $bcc_dest . " for " . $from . PHP_EOL);
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http_response_code(201);
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echo trim($bcc_dest);
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exit;
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}
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}
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}
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catch (PDOException $e) {
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error_log("BCC MAP SQL ERROR: " . $e->getMessage() . PHP_EOL);
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http_response_code(502);
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exit;
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}
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@ -320,6 +320,112 @@ rspamd_config:register_symbol({
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priority = 19
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})
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rspamd_config:register_symbol({
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name = 'BCC',
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type = 'postfilter',
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callback = function(task)
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local util = require("rspamd_util")
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local rspamd_http = require "rspamd_http"
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local rspamd_logger = require "rspamd_logger"
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local from_table = {}
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local rcpt_table = {}
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local send_mail = function(task, bcc_dest)
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local lua_smtp = require "lua_smtp"
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local function sendmail_cb(ret, err)
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if not ret then
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rspamd_logger.errx(task, 'BCC SMTP ERROR: %s', err)
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else
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rspamd_logger.infox(rspamd_config, "BCC SMTP SUCCESS TO %s", bcc_dest)
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end
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end
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if not bcc_dest then
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return -- stop
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end
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lua_smtp.sendmail({
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task = task,
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host = 'postfix',
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port = 591,
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from = task:get_from(stp)[1].addr,
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recipients = bcc_dest,
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helo = 'bcc',
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timeout = 10,
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}, task:get_content(), sendmail_cb)
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end
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-- determine from
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local from = task:get_from('smtp')
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if from then
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for _, a in ipairs(from) do
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table.insert(from_table, a['addr']) -- add this rcpt to table
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table.insert(from_table, '@' .. a['domain']) -- add this rcpts domain to table
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end
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else
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return -- stop
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end
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-- determine rcpts
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local rcpts = task:get_recipients('smtp')
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if rcpts then
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for _, a in ipairs(rcpts) do
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table.insert(rcpt_table, a['addr']) -- add this rcpt to table
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table.insert(rcpt_table, '@' .. a['domain']) -- add this rcpts domain to table
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end
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else
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return -- stop
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end
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local action = task:get_metric_action('default')
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rspamd_logger.infox("metric action now: %s", action)
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local function rcpt_callback(err_message, code, body, headers)
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if err_message == nil and code == 201 and body ~= nil then
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if action == 'no action' or action == 'add header' or action == 'rewrite subject' then
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send_mail(task, body)
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end
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end
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end
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local function from_callback(err_message, code, body, headers)
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if err_message == nil and code == 201 and body ~= nil then
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if action == 'no action' or action == 'add header' or action == 'rewrite subject' then
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send_mail(task, body)
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end
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end
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end
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if rcpt_table then
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for _,e in ipairs(rcpt_table) do
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rspamd_logger.infox(rspamd_config, "checking bcc for rcpt address %s", e)
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rspamd_http.request({
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task=task,
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url='http://nginx:8081/bcc.php',
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body='',
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callback=rcpt_callback,
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headers={Rcpt=e}
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})
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end
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end
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if from_table then
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for _,e in ipairs(from_table) do
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rspamd_logger.infox(rspamd_config, "checking bcc for from address %s", e)
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rspamd_http.request({
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task=task,
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url='http://nginx:8081/bcc.php',
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body='',
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callback=from_callback,
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headers={From=e}
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})
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end
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end
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return true
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end,
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priority = 20
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})
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rspamd_config:register_symbol({
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name = 'DYN_RL_CHECK',
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type = 'prefilter',
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