mirror of
https://github.com/mailcow/mailcow-dockerized.git
synced 2024-12-14 10:52:49 +02:00
17918b3e21
If a mail is sent to a domain alias domain and rejected, mailcow does not currently store the mail in quarantine. This commit adds domain alias handling to the reject code and should fix this behavior. Also added displaying of recipient addresses into the quarantine mail dialog to be able to see what mail address was "leaked".
250 lines
8.8 KiB
PHP
250 lines
8.8 KiB
PHP
<?php
|
|
// File size is limited by Nginx site to 10M
|
|
// To speed things up, we do not include prerequisites
|
|
header('Content-Type: text/plain');
|
|
require_once "vars.inc.php";
|
|
// Do not show errors, we log to using error_log
|
|
ini_set('error_reporting', 0);
|
|
// Init database
|
|
//$dsn = $database_type . ':host=' . $database_host . ';dbname=' . $database_name;
|
|
$dsn = $database_type . ":unix_socket=" . $database_sock . ";dbname=" . $database_name;
|
|
$opt = [
|
|
PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
|
|
PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
|
|
PDO::ATTR_EMULATE_PREPARES => false,
|
|
];
|
|
try {
|
|
$pdo = new PDO($dsn, $database_user, $database_pass, $opt);
|
|
}
|
|
catch (PDOException $e) {
|
|
error_log("QUARANTINE: " . $e);
|
|
http_response_code(501);
|
|
exit;
|
|
}
|
|
// Init Redis
|
|
$redis = new Redis();
|
|
$redis->connect('redis-mailcow', 6379);
|
|
|
|
// Functions
|
|
function parse_email($email) {
|
|
if(!filter_var($email, FILTER_VALIDATE_EMAIL)) return false;
|
|
$a = strrpos($email, '@');
|
|
return array('local' => substr($email, 0, $a), 'domain' => substr(substr($email, $a), 1));
|
|
}
|
|
if (!function_exists('getallheaders')) {
|
|
function getallheaders() {
|
|
if (!is_array($_SERVER)) {
|
|
return array();
|
|
}
|
|
$headers = array();
|
|
foreach ($_SERVER as $name => $value) {
|
|
if (substr($name, 0, 5) == 'HTTP_') {
|
|
$headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
|
|
}
|
|
}
|
|
return $headers;
|
|
}
|
|
}
|
|
|
|
$raw_data_content = file_get_contents('php://input');
|
|
$raw_data = mb_convert_encoding($raw_data_content, 'HTML-ENTITIES', "UTF-8");
|
|
$headers = getallheaders();
|
|
|
|
$qid = $headers['X-Rspamd-Qid'];
|
|
$subject = $headers['X-Rspamd-Subject'];
|
|
$score = $headers['X-Rspamd-Score'];
|
|
$rcpts = $headers['X-Rspamd-Rcpt'];
|
|
$user = $headers['X-Rspamd-User'];
|
|
$ip = $headers['X-Rspamd-Ip'];
|
|
$action = $headers['X-Rspamd-Action'];
|
|
$sender = $headers['X-Rspamd-From'];
|
|
$symbols = $headers['X-Rspamd-Symbols'];
|
|
|
|
$raw_size = (int)$_SERVER['CONTENT_LENGTH'];
|
|
|
|
try {
|
|
$max_size = (int)$redis->Get('Q_MAX_SIZE');
|
|
if (($max_size * 1048576) < $raw_size) {
|
|
error_log(sprintf("QUARANTINE: Message too large: %d b exceeds %d b", $raw_size, ($max_size * 1048576)));
|
|
http_response_code(505);
|
|
exit;
|
|
}
|
|
if ($exclude_domains = $redis->Get('Q_EXCLUDE_DOMAINS')) {
|
|
$exclude_domains = json_decode($exclude_domains, true);
|
|
}
|
|
$retention_size = (int)$redis->Get('Q_RETENTION_SIZE');
|
|
}
|
|
catch (RedisException $e) {
|
|
error_log("QUARANTINE: " . $e);
|
|
http_response_code(504);
|
|
exit;
|
|
}
|
|
|
|
$rcpt_final_mailboxes = array();
|
|
|
|
// Loop through all rcpts
|
|
foreach (json_decode($rcpts, true) as $rcpt) {
|
|
// Remove tag
|
|
$rcpt = preg_replace('/^(.*?)\+.*(@.*)$/', '$1$2', $rcpt);
|
|
|
|
// Break rcpt into local part and domain part
|
|
$parsed_rcpt = parse_email($rcpt);
|
|
|
|
// Skip if not a mailcow handled domain
|
|
try {
|
|
if (!$redis->hGet('DOMAIN_MAP', $parsed_rcpt['domain'])) {
|
|
continue;
|
|
}
|
|
}
|
|
catch (RedisException $e) {
|
|
error_log("QUARANTINE: " . $e);
|
|
http_response_code(504);
|
|
exit;
|
|
}
|
|
|
|
// Skip if domain is excluded
|
|
if (in_array($parsed_rcpt['domain'], $exclude_domains)) {
|
|
error_log(sprintf("QUARANTINE: Skipped domain %s", $parsed_rcpt['domain']));
|
|
continue;
|
|
}
|
|
|
|
// Always assume rcpt is not a final mailbox but an alias for a mailbox or further aliases
|
|
//
|
|
// rcpt
|
|
// |
|
|
// mailbox <-- goto ---> alias1, alias2, mailbox2
|
|
// | |
|
|
// mailbox3 |
|
|
// |
|
|
// alias3 ---> mailbox4
|
|
//
|
|
try {
|
|
$stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :rcpt AND `active` = '1'");
|
|
$stmt->execute(array(
|
|
':rcpt' => $rcpt
|
|
));
|
|
$gotos = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
|
|
if (empty($gotos)) {
|
|
$stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :rcpt AND `active` = '1'");
|
|
$stmt->execute(array(
|
|
':rcpt' => '@' . $parsed_rcpt['domain']
|
|
));
|
|
$gotos = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
|
|
}
|
|
if (empty($gotos)) {
|
|
$stmt = $pdo->prepare("SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :rcpt AND `active` = '1'");
|
|
$stmt->execute(array(':rcpt' => $parsed_rcpt['domain']));
|
|
$goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['target_domain'];
|
|
if ($goto_branch) {
|
|
$gotos = $parsed_rcpt['local'] . '@' . $goto_branch;
|
|
}
|
|
}
|
|
$gotos_array = explode(',', $gotos);
|
|
|
|
$loop_c = 0;
|
|
|
|
while (count($gotos_array) != 0 && $loop_c <= 20) {
|
|
|
|
// Loop through all found gotos
|
|
foreach ($gotos_array as $index => &$goto) {
|
|
error_log("QUARANTINE: quarantine pipe: query " . $goto . " as username from mailbox");
|
|
$stmt = $pdo->prepare("SELECT `username` FROM `mailbox` WHERE `username` = :goto AND `active`= '1';");
|
|
$stmt->execute(array(':goto' => $goto));
|
|
$username = $stmt->fetch(PDO::FETCH_ASSOC)['username'];
|
|
if (!empty($username)) {
|
|
error_log("QUARANTINE: quarantine pipe: mailbox found: " . $username);
|
|
// Current goto is a mailbox, save to rcpt_final_mailboxes if not a duplicate
|
|
if (!in_array($username, $rcpt_final_mailboxes)) {
|
|
$rcpt_final_mailboxes[] = $username;
|
|
}
|
|
}
|
|
else {
|
|
$parsed_goto = parse_email($goto);
|
|
if (!$redis->hGet('DOMAIN_MAP', $parsed_goto['domain'])) {
|
|
error_log("QUARANTINE:" . $goto . " is not a mailcow handled mailbox or alias address");
|
|
}
|
|
else {
|
|
$stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :goto AND `active` = '1'");
|
|
$stmt->execute(array(':goto' => $goto));
|
|
$goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
|
|
if ($goto_branch) {
|
|
error_log("QUARANTINE: quarantine pipe: goto address " . $goto . " is a alias branch for " . $goto_branch);
|
|
$goto_branch_array = explode(',', $goto_branch);
|
|
} else {
|
|
$stmt = $pdo->prepare("SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :domain AND `active` AND '1'");
|
|
$stmt->execute(array(':domain' => $parsed_goto['domain']));
|
|
$goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['target_domain'];
|
|
if ($goto_branch) {
|
|
error_log("QUARANTINE: quarantine pipe: goto domain " . $parsed_gto['domain'] . " is a domain alias branch for " . $goto_branch);
|
|
$goto_branch_array = array($parsed_gto['local'] . '@' . $goto_branch);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// goto item was processed, unset
|
|
unset($gotos_array[$index]);
|
|
}
|
|
|
|
// Merge goto branch array derived from previous loop (if any), filter duplicates and unset goto branch array
|
|
if (!empty($goto_branch_array)) {
|
|
$gotos_array = array_unique(array_merge($gotos_array, $goto_branch_array));
|
|
unset($goto_branch_array);
|
|
}
|
|
|
|
// Reindex array
|
|
$gotos_array = array_values($gotos_array);
|
|
|
|
// Force exit if loop cannot be solved
|
|
// Postfix does not allow for alias loops, so this should never happen.
|
|
$loop_c++;
|
|
error_log("QUARANTINE: quarantine pipe: goto array count on loop #". $loop_c . " is " . count($gotos_array));
|
|
}
|
|
}
|
|
catch (PDOException $e) {
|
|
error_log("QUARANTINE: " . $e->getMessage());
|
|
http_response_code(502);
|
|
exit;
|
|
}
|
|
}
|
|
|
|
foreach ($rcpt_final_mailboxes as $rcpt) {
|
|
error_log("QUARANTINE: quarantine pipe: processing quarantine message for rcpt " . $rcpt);
|
|
try {
|
|
$stmt = $pdo->prepare("INSERT INTO `quarantine` (`qid`, `subject`, `score`, `sender`, `rcpt`, `symbols`, `user`, `ip`, `msg`, `action`)
|
|
VALUES (:qid, :subject, :score, :sender, :rcpt, :symbols, :user, :ip, :msg, :action)");
|
|
$stmt->execute(array(
|
|
':qid' => $qid,
|
|
':subject' => $subject,
|
|
':score' => $score,
|
|
':sender' => $sender,
|
|
':rcpt' => $rcpt,
|
|
':symbols' => $symbols,
|
|
':user' => $user,
|
|
':ip' => $ip,
|
|
':msg' => $raw_data,
|
|
':action' => $action
|
|
));
|
|
$stmt = $pdo->prepare('DELETE FROM `quarantine` WHERE `rcpt` = :rcpt AND `id` NOT IN (
|
|
SELECT `id`
|
|
FROM (
|
|
SELECT `id`
|
|
FROM `quarantine`
|
|
WHERE `rcpt` = :rcpt2
|
|
ORDER BY id DESC
|
|
LIMIT :retention_size
|
|
) x
|
|
);');
|
|
$stmt->execute(array(
|
|
':rcpt' => $rcpt,
|
|
':rcpt2' => $rcpt,
|
|
':retention_size' => $retention_size
|
|
));
|
|
}
|
|
catch (PDOException $e) {
|
|
error_log("QUARANTINE: " . $e->getMessage());
|
|
http_response_code(503);
|
|
exit;
|
|
}
|
|
}
|
|
|