mailcow/data/conf/rspamd/meta_exporter/pushover.php

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<?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("NOTIFY: " . $e . PHP_EOL);
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;
}
}
$headers = getallheaders();
$qid = $headers['X-Rspamd-Qid'];
$rcpts = $headers['X-Rspamd-Rcpt'];
$sender_address = $headers['X-Rspamd-From'];
$ip = $headers['X-Rspamd-Ip'];
$subject = $headers['X-Rspamd-Subject'];
$priority = 0;
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$symbols_array = json_decode($headers['X-Rspamd-Symbols'], true);
if (is_array($symbols_array)) {
foreach ($symbols_array as $symbol) {
if ($symbol['name'] == 'HAS_X_PRIO_ONE') {
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$priority = 1;
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break;
}
}
}
$json = json_decode(file_get_contents('php://input'));
$sender = $json->header_from[0];
$sender_name = trim(str_replace('<' . $sender_address . '>', '', $sender));
$rcpt_final_mailboxes = array();
// Loop through all rcpts
foreach (json_decode($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("NOTIFY: " . $e . PHP_EOL);
http_response_code(504);
exit;
}
// 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("RCPT RESOVLER: http pipe: query " . $goto . " as username from mailbox" . PHP_EOL);
$stmt = $pdo->prepare("SELECT `username` FROM `mailbox` WHERE `username` = :goto AND (`active`= '1' OR `active`= '2');");
$stmt->execute(array(':goto' => $goto));
$username = $stmt->fetch(PDO::FETCH_ASSOC)['username'];
if (!empty($username)) {
error_log("RCPT RESOVLER: http pipe: mailbox found: " . $username . PHP_EOL);
// Current goto is a mailbox, save to rcpt_final_mailboxes if not a duplicate
if (!in_array($username, $rcpt_final_mailboxes)) {
$rcpt_final_mailboxes[] = $username;
}
}
else {
$parsed_goto = parse_email($goto);
if (!$redis->hGet('DOMAIN_MAP', $parsed_goto['domain'])) {
error_log("RCPT RESOVLER:" . $goto . " is not a mailcow handled mailbox or alias address" . PHP_EOL);
}
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) {
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error_log("RCPT RESOVLER: http pipe: goto address " . $goto . " is an alias branch for " . $goto_branch . PHP_EOL);
$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) {
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error_log("RCPT RESOVLER: http pipe: goto domain " . $parsed_goto['domain'] . " is a domain alias branch for " . $goto_branch . PHP_EOL);
$goto_branch_array = array($parsed_goto['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("RCPT RESOVLER: http pipe: goto array count on loop #". $loop_c . " is " . count($gotos_array) . PHP_EOL);
}
}
catch (PDOException $e) {
error_log("RCPT RESOVLER: " . $e->getMessage() . PHP_EOL);
http_response_code(502);
exit;
}
}
foreach ($rcpt_final_mailboxes as $rcpt_final) {
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error_log("NOTIFY: pushover pipe: processing pushover message for rcpt " . $rcpt_final . PHP_EOL);
$stmt = $pdo->prepare("SELECT * FROM `pushover`
WHERE `username` = :username AND `active` = '1'");
$stmt->execute(array(
':username' => $rcpt_final
));
$api_data = $stmt->fetch(PDO::FETCH_ASSOC);
if (isset($api_data['key']) && isset($api_data['token'])) {
$title = (!empty($api_data['title'])) ? $api_data['title'] : 'Mail';
$text = (!empty($api_data['text'])) ? $api_data['text'] : 'You\'ve got mail 📧';
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$attributes = json_decode($api_data['attributes'], true);
$senders = explode(',', $api_data['senders']);
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$senders = array_filter($senders);
$senders_regex = $api_data['senders_regex'];
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$sender_validated = false;
if (empty($senders) && empty($senders_regex)) {
$sender_validated = true;
}
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else {
if (!empty($senders)) {
if (in_array($sender_address, $senders)) {
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$sender_validated = true;
}
}
if (!empty($senders_regex) && $sender_validated !== true) {
if (preg_match($senders_regex, $sender_address)) {
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$sender_validated = true;
}
}
}
if ($sender_validated === false) {
error_log("NOTIFY: pushover pipe: skipping unwanted sender " . $sender_address);
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continue;
}
if ($attributes['only_x_prio'] == "1" && $priority == 0) {
error_log("NOTIFY: pushover pipe: mail has no X-Priority: 1 header, skipping");
continue;
}
$post_fields = array(
"token" => $api_data['token'],
"user" => $api_data['key'],
"title" => sprintf("%s", str_replace(array('{SUBJECT}', '{SENDER}', '{SENDER_NAME}', '{SENDER_ADDRESS}'), array($subject, $sender, $sender_name, $sender_address), $title)),
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"priority" => $priority,
"message" => sprintf("%s", str_replace(array('{SUBJECT}', '{SENDER}', '{SENDER_NAME}', '{SENDER_ADDRESS}'), array($subject, $sender, $sender_name, $sender_address), $text)),
"sound" => $attributes['sound'] ?? "pushover"
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);
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if ($attributes['evaluate_x_prio'] == "1" && $priority == 1) {
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$post_fields['expire'] = 600;
$post_fields['retry'] = 120;
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$post_fields['priority'] = 2;
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}
curl_setopt_array($ch = curl_init(), array(
CURLOPT_URL => "https://api.pushover.net/1/messages.json",
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CURLOPT_POSTFIELDS => $post_fields,
CURLOPT_SAFE_UPLOAD => true,
CURLOPT_RETURNTRANSFER => true,
));
$result = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
error_log("NOTIFY: result: " . $httpcode . PHP_EOL);
}
}