2020-04-11 02:55:49 +08:00
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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("NOTIFY: " . $e . PHP_EOL);
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http_response_code(501);
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exit;
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}
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// Init Redis
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$redis = new Redis();
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$redis->connect('redis-mailcow', 6379);
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// Functions
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function parse_email($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 $headers;
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}
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}
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$headers = getallheaders();
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$qid = $headers['X-Rspamd-Qid'];
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$rcpts = $headers['X-Rspamd-Rcpt'];
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2020-04-16 17:32:53 +08:00
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$sender = $headers['X-Rspamd-From'];
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2020-04-11 02:55:49 +08:00
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$ip = $headers['X-Rspamd-Ip'];
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$subject = $headers['X-Rspamd-Subject'];
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2020-04-16 17:32:53 +08:00
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$priority = 0;
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$symbols_array = json_decode($headers['X-Rspamd-Symbols'], true);
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if (is_array($symbols_array)) {
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foreach ($symbols_array as $symbol) {
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if ($symbol['name'] == 'HAS_X_PRIO_ONE') {
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2020-04-16 19:38:19 +08:00
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$priority = 1;
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2020-04-16 17:32:53 +08:00
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break;
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}
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}
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}
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2020-04-11 02:55:49 +08:00
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$rcpt_final_mailboxes = array();
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// Loop through all rcpts
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foreach (json_decode($rcpts, true) as $rcpt) {
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// Remove tag
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$rcpt = preg_replace('/^(.*?)\+.*(@.*)$/', '$1$2', $rcpt);
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// Break rcpt into local part and domain part
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$parsed_rcpt = parse_email($rcpt);
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// Skip if not a mailcow handled domain
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try {
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if (!$redis->hGet('DOMAIN_MAP', $parsed_rcpt['domain'])) {
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continue;
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}
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}
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catch (RedisException $e) {
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error_log("NOTIFY: " . $e . PHP_EOL);
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http_response_code(504);
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exit;
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}
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// Always assume rcpt is not a final mailbox but an alias for a mailbox or further aliases
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//
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// rcpt
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// |
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// mailbox <-- goto ---> alias1, alias2, mailbox2
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// | |
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// mailbox3 |
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// |
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// alias3 ---> mailbox4
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//
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try {
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2020-09-27 03:55:04 +08:00
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$stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :rcpt AND (`active` = '1' OR `active` = '2')");
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2020-04-11 02:55:49 +08:00
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$stmt->execute(array(
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':rcpt' => $rcpt
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));
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$gotos = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
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if (empty($gotos)) {
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2020-09-27 03:55:04 +08:00
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$stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :rcpt AND (`active` = '1' OR `active` = '2')");
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2020-04-11 02:55:49 +08:00
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$stmt->execute(array(
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':rcpt' => '@' . $parsed_rcpt['domain']
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));
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$gotos = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
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}
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if (empty($gotos)) {
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$stmt = $pdo->prepare("SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :rcpt AND `active` = '1'");
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$stmt->execute(array(':rcpt' => $parsed_rcpt['domain']));
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$goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['target_domain'];
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if ($goto_branch) {
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$gotos = $parsed_rcpt['local'] . '@' . $goto_branch;
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}
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}
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$gotos_array = explode(',', $gotos);
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$loop_c = 0;
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while (count($gotos_array) != 0 && $loop_c <= 20) {
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// Loop through all found gotos
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foreach ($gotos_array as $index => &$goto) {
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error_log("RCPT RESOVLER: http pipe: query " . $goto . " as username from mailbox" . PHP_EOL);
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$stmt = $pdo->prepare("SELECT `username` FROM `mailbox` WHERE `username` = :goto AND `active`= '1';");
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$stmt->execute(array(':goto' => $goto));
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$username = $stmt->fetch(PDO::FETCH_ASSOC)['username'];
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if (!empty($username)) {
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error_log("RCPT RESOVLER: http pipe: mailbox found: " . $username . PHP_EOL);
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// Current goto is a mailbox, save to rcpt_final_mailboxes if not a duplicate
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if (!in_array($username, $rcpt_final_mailboxes)) {
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$rcpt_final_mailboxes[] = $username;
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}
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}
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else {
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$parsed_goto = parse_email($goto);
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if (!$redis->hGet('DOMAIN_MAP', $parsed_goto['domain'])) {
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error_log("RCPT RESOVLER:" . $goto . " is not a mailcow handled mailbox or alias address" . PHP_EOL);
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}
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else {
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2020-09-27 03:55:04 +08:00
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$stmt = $pdo->prepare("SELECT `goto` FROM `alias` WHERE `address` = :goto AND (`active` = '1' OR `active` = '2')");
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2020-04-11 02:55:49 +08:00
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$stmt->execute(array(':goto' => $goto));
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$goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['goto'];
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if ($goto_branch) {
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error_log("RCPT RESOVLER: http pipe: goto address " . $goto . " is a alias branch for " . $goto_branch . PHP_EOL);
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$goto_branch_array = explode(',', $goto_branch);
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} else {
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$stmt = $pdo->prepare("SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :domain AND `active` AND '1'");
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$stmt->execute(array(':domain' => $parsed_goto['domain']));
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$goto_branch = $stmt->fetch(PDO::FETCH_ASSOC)['target_domain'];
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if ($goto_branch) {
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error_log("RCPT RESOVLER: http pipe: goto domain " . $parsed_gto['domain'] . " is a domain alias branch for " . $goto_branch . PHP_EOL);
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$goto_branch_array = array($parsed_gto['local'] . '@' . $goto_branch);
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}
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}
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}
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}
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// goto item was processed, unset
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unset($gotos_array[$index]);
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}
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// Merge goto branch array derived from previous loop (if any), filter duplicates and unset goto branch array
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if (!empty($goto_branch_array)) {
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$gotos_array = array_unique(array_merge($gotos_array, $goto_branch_array));
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unset($goto_branch_array);
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}
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// Reindex array
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$gotos_array = array_values($gotos_array);
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// Force exit if loop cannot be solved
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// Postfix does not allow for alias loops, so this should never happen.
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$loop_c++;
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error_log("RCPT RESOVLER: http pipe: goto array count on loop #". $loop_c . " is " . count($gotos_array) . PHP_EOL);
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}
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}
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catch (PDOException $e) {
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error_log("RCPT RESOVLER: " . $e->getMessage() . PHP_EOL);
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http_response_code(502);
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exit;
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}
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}
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foreach ($rcpt_final_mailboxes as $rcpt_final) {
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2020-04-16 19:38:19 +08:00
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error_log("NOTIFY: pushover pipe: processing pushover message for rcpt " . $rcpt_final . PHP_EOL);
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2020-04-11 02:55:49 +08:00
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$stmt = $pdo->prepare("SELECT * FROM `pushover`
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WHERE `username` = :username AND `active` = '1'");
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$stmt->execute(array(
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2020-04-11 14:02:15 +08:00
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':username' => $rcpt_final
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2020-04-11 02:55:49 +08:00
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));
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$api_data = $stmt->fetch(PDO::FETCH_ASSOC);
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if (isset($api_data['key']) && isset($api_data['token'])) {
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$title = (!empty($api_data['title'])) ? $api_data['title'] : 'Mail';
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$text = (!empty($api_data['text'])) ? $api_data['text'] : 'You\'ve got mail 📧';
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2020-04-16 17:32:53 +08:00
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$attributes = json_decode($api_data['attributes'], true);
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$senders = explode(',', $api_data['senders']);
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2020-04-16 18:23:27 +08:00
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$senders = array_filter($senders);
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2020-04-17 03:58:30 +08:00
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$senders_regex = $api_data['senders_regex'];
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2020-04-17 04:29:01 +08:00
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$sender_validated = false;
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if (empty($senders) && empty($senders_regex)) {
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$sender_validated = true;
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2020-04-17 03:58:30 +08:00
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}
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2020-04-17 04:29:01 +08:00
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else {
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if (!empty($senders)) {
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if (in_array($sender, $senders)) {
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$sender_validated = true;
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}
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}
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if (!empty($senders_regex) && $sender_validated !== true) {
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if (preg_match($senders_regex, $sender)) {
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$sender_validated = true;
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}
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}
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2020-04-17 03:58:30 +08:00
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}
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if ($sender_validated === false) {
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2020-04-16 17:32:53 +08:00
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error_log("NOTIFY: pushover pipe: skipping unwanted sender " . $sender);
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continue;
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}
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if ($attributes['only_x_prio'] == "1" && $priority == 0) {
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error_log("NOTIFY: pushover pipe: mail has no X-Priority: 1 header, skipping");
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continue;
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}
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$post_fields = array(
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"token" => $api_data['token'],
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"user" => $api_data['key'],
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"title" => sprintf("%s", str_replace(array('{SUBJECT}', '{SENDER}'), array($subject, $sender), $title)),
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"priority" => $priority,
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"message" => sprintf("%s", str_replace(array('{SUBJECT}', '{SENDER}'), array($subject, $sender), $text))
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);
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2020-04-16 19:38:19 +08:00
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if ($attributes['evaluate_x_prio'] == "1" && $priority == 1) {
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2020-04-16 17:32:53 +08:00
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$post_fields['expire'] = 600;
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$post_fields['retry'] = 120;
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2020-04-16 19:38:19 +08:00
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$post_fields['priority'] = 2;
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2020-04-16 17:32:53 +08:00
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}
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2020-04-11 02:55:49 +08:00
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curl_setopt_array($ch = curl_init(), array(
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CURLOPT_URL => "https://api.pushover.net/1/messages.json",
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2020-04-16 17:32:53 +08:00
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CURLOPT_POSTFIELDS => $post_fields,
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2020-04-11 02:55:49 +08:00
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CURLOPT_SAFE_UPLOAD => true,
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CURLOPT_RETURNTRANSFER => true,
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));
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$result = curl_exec($ch);
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$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
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curl_close($ch);
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error_log("NOTIFY: result: " . $httpcode . PHP_EOL);
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}
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}
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