Matthias Andreas Benkard | b382b10 | 2021-01-02 15:32:21 +0100 | [diff] [blame] | 1 | <?php
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| 2 | // File size is limited by Nginx site to 10M
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| 3 | // To speed things up, we do not include prerequisites
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| 4 | header('Content-Type: text/plain');
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| 5 | require_once "vars.inc.php";
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| 6 | // Do not show errors, we log to using error_log
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| 7 | ini_set('error_reporting', 0);
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| 8 | // Init database
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| 9 | //$dsn = $database_type . ':host=' . $database_host . ';dbname=' . $database_name;
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| 10 | $dsn = $database_type . ":unix_socket=" . $database_sock . ";dbname=" . $database_name;
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| 11 | $opt = [
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| 12 | PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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| 13 | PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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| 14 | PDO::ATTR_EMULATE_PREPARES => false,
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| 15 | ];
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| 16 | try {
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| 17 | $pdo = new PDO($dsn, $database_user, $database_pass, $opt);
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| 18 | }
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| 19 | catch (PDOException $e) {
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| 20 | error_log("NOTIFY: " . $e . PHP_EOL);
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| 21 | http_response_code(501);
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| 22 | exit;
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| 23 | }
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| 24 | // Init Redis
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| 25 | $redis = new Redis();
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| 26 | $redis->connect('redis-mailcow', 6379);
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| 27 |
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| 28 | // Functions
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| 29 | function parse_email($email) {
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| 30 | if(!filter_var($email, FILTER_VALIDATE_EMAIL)) return false;
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| 31 | $a = strrpos($email, '@');
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| 32 | return array('local' => substr($email, 0, $a), 'domain' => substr(substr($email, $a), 1));
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| 33 | }
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| 34 | if (!function_exists('getallheaders')) {
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| 35 | function getallheaders() {
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| 36 | if (!is_array($_SERVER)) {
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| 37 | return array();
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| 38 | }
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| 39 | $headers = array();
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| 40 | foreach ($_SERVER as $name => $value) {
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| 41 | if (substr($name, 0, 5) == 'HTTP_') {
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| 42 | $headers[str_replace(' ', '-', ucwords(strtolower(str_replace('_', ' ', substr($name, 5)))))] = $value;
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| 43 | }
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| 44 | }
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| 45 | return $headers;
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| 46 | }
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| 47 | }
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| 48 |
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| 49 | $headers = getallheaders();
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Matthias Andreas Benkard | 1ba5381 | 2022-12-27 17:32:58 +0100 | [diff] [blame^] | 50 | $json_body = json_decode(file_get_contents('php://input'));
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Matthias Andreas Benkard | b382b10 | 2021-01-02 15:32:21 +0100 | [diff] [blame] | 51 |
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| 52 | $qid = $headers['X-Rspamd-Qid'];
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| 53 | $rcpts = $headers['X-Rspamd-Rcpt'];
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| 54 | $sender = $headers['X-Rspamd-From'];
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| 55 | $ip = $headers['X-Rspamd-Ip'];
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| 56 | $subject = $headers['X-Rspamd-Subject'];
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Matthias Andreas Benkard | 1ba5381 | 2022-12-27 17:32:58 +0100 | [diff] [blame^] | 57 | $messageid= $json_body->message_id;
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Matthias Andreas Benkard | b382b10 | 2021-01-02 15:32:21 +0100 | [diff] [blame] | 58 | $priority = 0;
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| 59 |
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| 60 | $symbols_array = json_decode($headers['X-Rspamd-Symbols'], true);
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| 61 | if (is_array($symbols_array)) {
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| 62 | foreach ($symbols_array as $symbol) {
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| 63 | if ($symbol['name'] == 'HAS_X_PRIO_ONE') {
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| 64 | $priority = 1;
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| 65 | break;
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| 66 | }
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| 67 | }
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| 68 | }
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| 69 |
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Matthias Andreas Benkard | 1ba5381 | 2022-12-27 17:32:58 +0100 | [diff] [blame^] | 70 | $sender_address = $json_body->header_from[0];
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| 71 | $sender_name = '-';
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| 72 | if (preg_match('/(?<name>.*?)<(?<address>.*?)>/i', $sender_address, $matches)) {
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| 73 | $sender_address = $matches['address'];
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| 74 | $sender_name = trim($matches['name'], '"\' ');
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| 75 | }
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| 76 |
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| 77 | $to_address = $json_body->header_to[0];
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| 78 | $to_name = '-';
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| 79 | if (preg_match('/(?<name>.*?)<(?<address>.*?)>/i', $to_address, $matches)) {
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| 80 | $to_address = $matches['address'];
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| 81 | $to_name = trim($matches['name'], '"\' ');
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| 82 | }
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| 83 |
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Matthias Andreas Benkard | b382b10 | 2021-01-02 15:32:21 +0100 | [diff] [blame] | 84 | $rcpt_final_mailboxes = array();
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| 85 |
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| 86 | // Loop through all rcpts
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| 87 | foreach (json_decode($rcpts, true) as $rcpt) {
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| 88 | // Remove tag
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| 89 | $rcpt = preg_replace('/^(.*?)\+.*(@.*)$/', '$1$2', $rcpt);
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| 90 |
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| 91 | // Break rcpt into local part and domain part
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| 92 | $parsed_rcpt = parse_email($rcpt);
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| 93 |
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| 94 | // Skip if not a mailcow handled domain
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| 95 | try {
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| 96 | if (!$redis->hGet('DOMAIN_MAP', $parsed_rcpt['domain'])) {
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| 97 | continue;
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| 98 | }
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| 99 | }
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| 100 | catch (RedisException $e) {
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| 101 | error_log("NOTIFY: " . $e . PHP_EOL);
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| 102 | http_response_code(504);
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| 103 | exit;
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| 104 | }
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| 105 |
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| 106 | // Always assume rcpt is not a final mailbox but an alias for a mailbox or further aliases
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| 107 | //
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| 108 | // rcpt
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| 109 | // |
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| 110 | // mailbox <-- goto ---> alias1, alias2, mailbox2
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| 111 | // | |
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| 112 | // mailbox3 |
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| 113 | // |
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| 114 | // alias3 ---> mailbox4
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| 115 | //
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| 116 | try {
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| 117 | $stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :rcpt AND `active` = '1'");
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| 118 | $stmt->execute(array(
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| 119 | ':rcpt' => $rcpt
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| 120 | ));
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| 121 | $gotos = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
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| 122 | if (empty($gotos)) {
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| 123 | $stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :rcpt AND `active` = '1'");
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| 124 | $stmt->execute(array(
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| 125 | ':rcpt' => '@' . $parsed_rcpt['domain']
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| 126 | ));
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| 127 | $gotos = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
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| 128 | }
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| 129 | if (empty($gotos)) {
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| 130 | $stmt = $pdo->prepare("SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :rcpt AND `active` = '1'");
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| 131 | $stmt->execute(array(':rcpt' => $parsed_rcpt['domain']));
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| 132 | $goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['target_domain'];
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| 133 | if ($goto_branch) {
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| 134 | $gotos = $parsed_rcpt['local'] . '@' . $goto_branch;
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| 135 | }
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| 136 | }
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| 137 | $gotos_array = explode(',', $gotos);
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| 138 |
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| 139 | $loop_c = 0;
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| 140 |
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| 141 | while (count($gotos_array) != 0 && $loop_c <= 20) {
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| 142 |
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| 143 | // Loop through all found gotos
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| 144 | foreach ($gotos_array as $index => &$goto) {
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| 145 | error_log("RCPT RESOVLER: http pipe: query " . $goto . " as username from mailbox" . PHP_EOL);
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| 146 | $stmt = $pdo->prepare("SELECT `username` FROM `mailbox` WHERE `username` = :goto AND (`active`= '1' OR `active`= '2');");
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| 147 | $stmt->execute(array(':goto' => $goto));
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| 148 | $username = $stmt->fetch(PDO::FETCH_ASSOC)['username'];
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| 149 | if (!empty($username)) {
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| 150 | error_log("RCPT RESOVLER: http pipe: mailbox found: " . $username . PHP_EOL);
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| 151 | // Current goto is a mailbox, save to rcpt_final_mailboxes if not a duplicate
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| 152 | if (!in_array($username, $rcpt_final_mailboxes)) {
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| 153 | $rcpt_final_mailboxes[] = $username;
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| 154 | }
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| 155 | }
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| 156 | else {
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| 157 | $parsed_goto = parse_email($goto);
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| 158 | if (!$redis->hGet('DOMAIN_MAP', $parsed_goto['domain'])) {
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| 159 | error_log("RCPT RESOVLER:" . $goto . " is not a mailcow handled mailbox or alias address" . PHP_EOL);
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| 160 | }
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| 161 | else {
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| 162 | $stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :goto AND `active` = '1'");
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| 163 | $stmt->execute(array(':goto' => $goto));
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| 164 | $goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
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| 165 | if ($goto_branch) {
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| 166 | error_log("RCPT RESOVLER: http pipe: goto address " . $goto . " is an alias branch for " . $goto_branch . PHP_EOL);
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| 167 | $goto_branch_array = explode(',', $goto_branch);
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| 168 | } else {
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| 169 | $stmt = $pdo->prepare("SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :domain AND `active` AND '1'");
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| 170 | $stmt->execute(array(':domain' => $parsed_goto['domain']));
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| 171 | $goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['target_domain'];
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| 172 | if ($goto_branch) {
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| 173 | error_log("RCPT RESOVLER: http pipe: goto domain " . $parsed_goto['domain'] . " is a domain alias branch for " . $goto_branch . PHP_EOL);
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| 174 | $goto_branch_array = array($parsed_goto['local'] . '@' . $goto_branch);
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| 175 | }
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| 176 | }
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| 177 | }
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| 178 | }
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| 179 | // goto item was processed, unset
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| 180 | unset($gotos_array[$index]);
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| 181 | }
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| 182 |
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| 183 | // Merge goto branch array derived from previous loop (if any), filter duplicates and unset goto branch array
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| 184 | if (!empty($goto_branch_array)) {
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| 185 | $gotos_array = array_unique(array_merge($gotos_array, $goto_branch_array));
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| 186 | unset($goto_branch_array);
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| 187 | }
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| 188 |
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| 189 | // Reindex array
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| 190 | $gotos_array = array_values($gotos_array);
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| 191 |
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| 192 | // Force exit if loop cannot be solved
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| 193 | // Postfix does not allow for alias loops, so this should never happen.
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| 194 | $loop_c++;
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| 195 | error_log("RCPT RESOVLER: http pipe: goto array count on loop #". $loop_c . " is " . count($gotos_array) . PHP_EOL);
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| 196 | }
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| 197 | }
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| 198 | catch (PDOException $e) {
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| 199 | error_log("RCPT RESOVLER: " . $e->getMessage() . PHP_EOL);
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| 200 | http_response_code(502);
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| 201 | exit;
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| 202 | }
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| 203 | }
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| 204 |
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| 205 |
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| 206 | foreach ($rcpt_final_mailboxes as $rcpt_final) {
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| 207 | error_log("NOTIFY: pushover pipe: processing pushover message for rcpt " . $rcpt_final . PHP_EOL);
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| 208 | $stmt = $pdo->prepare("SELECT * FROM `pushover`
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| 209 | WHERE `username` = :username AND `active` = '1'");
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| 210 | $stmt->execute(array(
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| 211 | ':username' => $rcpt_final
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| 212 | ));
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| 213 | $api_data = $stmt->fetch(PDO::FETCH_ASSOC);
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| 214 | if (isset($api_data['key']) && isset($api_data['token'])) {
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| 215 | $title = (!empty($api_data['title'])) ? $api_data['title'] : 'Mail';
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| 216 | $text = (!empty($api_data['text'])) ? $api_data['text'] : 'You\'ve got mail 📧';
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| 217 | $attributes = json_decode($api_data['attributes'], true);
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| 218 | $senders = explode(',', $api_data['senders']);
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| 219 | $senders = array_filter($senders);
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| 220 | $senders_regex = $api_data['senders_regex'];
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| 221 | $sender_validated = false;
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| 222 | if (empty($senders) && empty($senders_regex)) {
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| 223 | $sender_validated = true;
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| 224 | }
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| 225 | else {
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| 226 | if (!empty($senders)) {
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| 227 | if (in_array($sender, $senders)) {
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| 228 | $sender_validated = true;
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| 229 | }
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| 230 | }
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| 231 | if (!empty($senders_regex) && $sender_validated !== true) {
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| 232 | if (preg_match($senders_regex, $sender)) {
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| 233 | $sender_validated = true;
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| 234 | }
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| 235 | }
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| 236 | }
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| 237 | if ($sender_validated === false) {
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| 238 | error_log("NOTIFY: pushover pipe: skipping unwanted sender " . $sender);
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| 239 | continue;
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| 240 | }
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| 241 | if ($attributes['only_x_prio'] == "1" && $priority == 0) {
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| 242 | error_log("NOTIFY: pushover pipe: mail has no X-Priority: 1 header, skipping");
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| 243 | continue;
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| 244 | }
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| 245 | $post_fields = array(
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| 246 | "token" => $api_data['token'],
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| 247 | "user" => $api_data['key'],
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Matthias Andreas Benkard | 1ba5381 | 2022-12-27 17:32:58 +0100 | [diff] [blame^] | 248 | "title" => sprintf("%s", str_replace(
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| 249 | array('{SUBJECT}', '{SENDER}', '{SENDER_NAME}', '{SENDER_ADDRESS}', '{TO_NAME}', '{TO_ADDRESS}', '{MSG_ID}'),
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| 250 | array($subject, $sender, $sender_name, $sender_address, $to_name, $to_address, $messageid), $title)
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| 251 | ),
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Matthias Andreas Benkard | b382b10 | 2021-01-02 15:32:21 +0100 | [diff] [blame] | 252 | "priority" => $priority,
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Matthias Andreas Benkard | 1ba5381 | 2022-12-27 17:32:58 +0100 | [diff] [blame^] | 253 | "message" => sprintf("%s", str_replace(
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| 254 | array('{SUBJECT}', '{SENDER}', '{SENDER_NAME}', '{SENDER_ADDRESS}', '{TO_NAME}', '{TO_ADDRESS}', '{MSG_ID}', '\n'),
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| 255 | array($subject, $sender, $sender_name, $sender_address, $to_name, $to_address, $messageid, PHP_EOL), $text)
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| 256 | ),
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| 257 | "sound" => $attributes['sound'] ?? "pushover"
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Matthias Andreas Benkard | b382b10 | 2021-01-02 15:32:21 +0100 | [diff] [blame] | 258 | );
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| 259 | if ($attributes['evaluate_x_prio'] == "1" && $priority == 1) {
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| 260 | $post_fields['expire'] = 600;
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| 261 | $post_fields['retry'] = 120;
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| 262 | $post_fields['priority'] = 2;
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| 263 | }
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| 264 | curl_setopt_array($ch = curl_init(), array(
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| 265 | CURLOPT_URL => "https://api.pushover.net/1/messages.json",
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| 266 | CURLOPT_POSTFIELDS => $post_fields,
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| 267 | CURLOPT_SAFE_UPLOAD => true,
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| 268 | CURLOPT_RETURNTRANSFER => true,
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| 269 | ));
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| 270 | $result = curl_exec($ch);
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| 271 | $httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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| 272 | curl_close($ch);
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| 273 | error_log("NOTIFY: result: " . $httpcode . PHP_EOL);
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| 274 | }
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| 275 | }
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