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mailcow/data/web/inc/functions.inc.php

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PHP
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<?php
require_once 'dkim.inc.php';
require_once 'mailbox.inc.php';
require_once 'domainadmin.inc.php';
function hash_password($password) {
$salt_str = bin2hex(openssl_random_pseudo_bytes(8));
return "{SSHA256}".base64_encode(hash('sha256', $password . $salt_str, true) . $salt_str);
}
function hasDomainAccess($username, $role, $domain) {
global $pdo;
if (!filter_var($username, FILTER_VALIDATE_EMAIL) && !ctype_alnum(str_replace(array('_', '.', '-'), '', $username))) {
return false;
}
if (empty($domain) || !is_valid_domain_name($domain)) {
return false;
}
if ($role != 'admin' && $role != 'domainadmin' && $role != 'user') {
return false;
}
try {
$stmt = $pdo->prepare("SELECT `domain` FROM `domain_admins`
WHERE (
`active`='1'
AND `username` = :username
AND (`domain` = :domain1 OR `domain` = (SELECT `target_domain` FROM `alias_domain` WHERE `alias_domain` = :domain2))
)
OR 'admin' = :role");
$stmt->execute(array(':username' => $username, ':domain1' => $domain, ':domain2' => $domain, ':role' => $role));
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
if (!empty($num_results)) {
return true;
}
return false;
}
function hasMailboxObjectAccess($username, $role, $object) {
global $pdo;
if (!filter_var($username, FILTER_VALIDATE_EMAIL) && !ctype_alnum(str_replace(array('_', '.', '-'), '', $username))) {
return false;
}
if ($role != 'admin' && $role != 'domainadmin' && $role != 'user') {
return false;
}
if ($username == $object) {
return true;
}
try {
$stmt = $pdo->prepare("SELECT `domain` FROM `mailbox` WHERE `username` = :object");
$stmt->execute(array(':object' => $object));
$row = $stmt->fetch(PDO::FETCH_ASSOC);
if (isset($row['domain']) && hasDomainAccess($username, $role, $row['domain'])) {
return true;
}
}
catch(PDOException $e) {
error_log($e);
return false;
}
return false;
}
function init_db_schema() {
global $pdo;
try {
$stmt = $pdo->prepare("SELECT NULL FROM `admin`, `imapsync`");
$stmt->execute();
}
catch (Exception $e) {
$lines = file('/web/inc/init.sql');
$data = '';
foreach ($lines as $line) {
if (substr($line, 0, 2) == '--' || $line == '') {
continue;
}
$data .= $line;
if (substr(trim($line), -1, 1) == ';') {
$pdo->query($data);
$data = '';
}
}
// Create index if not exists
$stmt = $pdo->query("SHOW INDEX FROM sogo_acl WHERE KEY_NAME = 'sogo_acl_c_folder_id_idx'");
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
if ($num_results == 0) {
$pdo->query("CREATE INDEX sogo_acl_c_folder_id_idx ON sogo_acl(c_folder_id)");
}
$stmt = $pdo->query("SHOW INDEX FROM sogo_acl WHERE KEY_NAME = 'sogo_acl_c_uid_idx'");
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
if ($num_results == 0) {
$pdo->query("CREATE INDEX sogo_acl_c_uid_idx ON sogo_acl(c_uid)");
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => 'Database initialization completed.'
);
}
// Add newly added columns
$stmt = $pdo->query("SHOW COLUMNS FROM `mailbox` LIKE 'kind'");
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
if ($num_results == 0) {
$pdo->query("ALTER TABLE `mailbox` ADD `kind` varchar(100) NOT NULL DEFAULT ''");
}
$stmt = $pdo->query("SHOW COLUMNS FROM `mailbox` LIKE 'multiple_bookings'");
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
if ($num_results == 0) {
$pdo->query("ALTER TABLE `mailbox` ADD `multiple_bookings` tinyint(1) NOT NULL DEFAULT '0'");
}
$stmt = $pdo->query("SHOW COLUMNS FROM `mailbox` LIKE 'wants_tagged_subject'");
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
if ($num_results == 0) {
$pdo->query("ALTER TABLE `mailbox` ADD `wants_tagged_subject` tinyint(1) NOT NULL DEFAULT '0'");
}
}
function verify_ssha256($hash, $password) {
// Remove tag if any
$hash = ltrim($hash, '{SSHA256}');
// Decode hash
$dhash = base64_decode($hash);
// Get first 32 bytes of binary which equals a SHA256 hash
$ohash = substr($dhash, 0, 32);
// Remove SHA256 hash from decoded hash to get original salt string
$osalt = str_replace($ohash, '', $dhash);
// Check single salted SHA256 hash against extracted hash
if (hash('sha256', $password . $osalt, true) == $ohash) {
return true;
}
else {
return false;
}
}
function doveadm_authenticate($hash, $algorithm, $password) {
$descr = array(0 => array('pipe', 'r'), 1 => array('pipe', 'w'), 2 => array('pipe', 'w'));
$pipes = array();
$process = proc_open("/usr/bin/doveadm pw -s ".$algorithm." -t '".$hash."'", $descr, $pipes);
if (is_resource($process)) {
fputs($pipes[0], $password);
fclose($pipes[0]);
while ($f = fgets($pipes[1])) {
if (preg_match('/(verified)/', $f)) {
proc_close($process);
return true;
}
return false;
}
fclose($pipes[1]);
while ($f = fgets($pipes[2])) {
proc_close($process);
return false;
}
fclose($pipes[2]);
proc_close($process);
}
return false;
}
function check_login($user, $pass) {
global $pdo;
if (!filter_var($user, FILTER_VALIDATE_EMAIL) && !ctype_alnum(str_replace(array('_', '.', '-'), '', $user))) {
return false;
}
$user = strtolower(trim($user));
$stmt = $pdo->prepare("SELECT `password` FROM `admin`
WHERE `superadmin` = '1'
AND `username` = :user");
$stmt->execute(array(':user' => $user));
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $row) {
if (verify_ssha256($row['password'], $pass) !== false) {
unset($_SESSION['ldelay']);
return "admin";
}
}
$stmt = $pdo->prepare("SELECT `password` FROM `admin`
WHERE `superadmin` = '0'
AND `active`='1'
AND `username` = :user");
$stmt->execute(array(':user' => $user));
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $row) {
if (verify_ssha256($row['password'], $pass) !== false) {
unset($_SESSION['ldelay']);
return "domainadmin";
}
}
$stmt = $pdo->prepare("SELECT `password` FROM `mailbox`
WHERE `active`='1'
AND `username` = :user");
$stmt->execute(array(':user' => $user));
$rows = $stmt->fetchAll(PDO::FETCH_ASSOC);
foreach ($rows as $row) {
if (verify_ssha256($row['password'], $pass) !== false) {
unset($_SESSION['ldelay']);
return "user";
}
}
if (!isset($_SESSION['ldelay'])) {
$_SESSION['ldelay'] = "0";
}
elseif (!isset($_SESSION['mailcow_cc_username'])) {
$_SESSION['ldelay'] = $_SESSION['ldelay']+0.5;
}
sleep($_SESSION['ldelay']);
}
function formatBytes($size, $precision = 2) {
if(!is_numeric($size)) {
return "0";
}
$base = log($size, 1024);
$suffixes = array(' Byte', ' KiB', ' MiB', ' GiB', ' TiB');
if ($size == "0") {
return "0";
}
return round(pow(1024, $base - floor($base)), $precision) . $suffixes[floor($base)];
}
function set_admin_account($postarray) {
global $lang;
global $pdo;
if ($_SESSION['mailcow_cc_role'] != "admin") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
$name = $postarray['admin_user'];
$name_now = $postarray['admin_user_now'];
if (!ctype_alnum(str_replace(array('_', '.', '-'), '', $name)) || empty ($name)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['username_invalid'])
);
return false;
}
if (!ctype_alnum(str_replace(array('_', '.', '-'), '', $name_now)) || empty ($name_now)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['username_invalid'])
);
return false;
}
if (!empty($postarray['admin_pass']) && !empty($postarray['admin_pass2'])) {
if ($postarray['admin_pass'] != $postarray['admin_pass2']) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['password_mismatch'])
);
return false;
}
$password_hashed = hash_password($postarray['admin_pass']);
try {
$stmt = $pdo->prepare("UPDATE `admin` SET
`modified` = :modified,
`password` = :password_hashed,
`username` = :name
WHERE `username` = :username");
$stmt->execute(array(
':password_hashed' => $password_hashed,
':modified' => date('Y-m-d H:i:s'),
':name' => $name,
':username' => $name_now
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
}
else {
try {
$stmt = $pdo->prepare("UPDATE `admin` SET
`modified` = :modified,
`username` = :name
WHERE `username` = :name_now");
$stmt->execute(array(
':name' => $name,
':modified' => date('Y-m-d H:i:s'),
':name_now' => $name_now
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
}
try {
$stmt = $pdo->prepare("UPDATE `domain_admins` SET
`domain` = :domain,
`username` = :name
WHERE `username` = :name_now");
$stmt->execute(array(
':domain' => 'ALL',
':name' => $name,
':name_now' => $name_now
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['admin_modified'])
);
}
function set_time_limited_aliases($postarray) {
global $lang;
global $pdo;
(isset($postarray['username'])) ? $username = $postarray['username'] : $username = $_SESSION['mailcow_cc_username'];
if ($_SESSION['mailcow_cc_role'] != "user" &&
$_SESSION['mailcow_cc_role'] != "admin") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (filter_var($username, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $username)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
try {
$stmt = $pdo->prepare("SELECT `domain` FROM `mailbox` WHERE `username` = :username");
$stmt->execute(array(':username' => $username));
$domain = $stmt->fetch(PDO::FETCH_ASSOC)['domain'];
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
switch ($postarray["trigger_set_time_limited_aliases"]) {
case "generate":
if (!is_numeric($postarray["validity"]) || $postarray["validity"] > 672) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['validity_missing'])
);
return false;
}
$validity = strtotime("+".$postarray["validity"]." hour");
$letters = 'abcefghijklmnopqrstuvwxyz1234567890';
$random_name = substr(str_shuffle($letters), 0, 24);
try {
$stmt = $pdo->prepare("INSERT INTO `spamalias` (`address`, `goto`, `validity`) VALUES
(:address, :goto, :validity)");
$stmt->execute(array(
':address' => $random_name . '@' . $domain,
':goto' => $username,
':validity' => $validity
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], htmlspecialchars($username))
);
break;
case "deleteall":
try {
$stmt = $pdo->prepare("DELETE FROM `spamalias` WHERE `goto` = :username");
$stmt->execute(array(
':username' => $username
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], htmlspecialchars($username))
);
break;
case "delete":
if (empty($postarray['item']) || !filter_var($postarray['item'], FILTER_VALIDATE_EMAIL)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
$item = $postarray['item'];
try {
$stmt = $pdo->prepare("DELETE FROM `spamalias` WHERE `goto` = :username AND `address` = :item");
$stmt->execute(array(
':username' => $username,
':item' => $item
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], htmlspecialchars($username))
);
break;
case "extend":
try {
$stmt = $pdo->prepare("UPDATE `spamalias` SET `validity` = (`validity` + 3600)
WHERE `goto` = :username
AND `validity` >= :validity");
$stmt->execute(array(
':username' => $username,
':validity' => time(),
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], htmlspecialchars($username))
);
break;
}
}
function get_time_limited_aliases($username = null) {
// 'username' can be be set, if not, default to mailcow_cc_username
global $lang;
global $pdo;
$data = array();
if (isset($username) && filter_var($username, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $username)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
try {
$stmt = $pdo->prepare("SELECT `address`,
`goto`,
`validity`
FROM `spamalias`
WHERE `goto` = :username
AND `validity` >= :unixnow");
$stmt->execute(array(':username' => $username, ':unixnow' => time()));
$data = $stmt->fetchAll(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
}
return $data;
}
function edit_user_account($postarray) {
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
$password_old = $postarray['user_old_pass'];
isset($postarray['togglePwNew']) ? $pwnew_active = '1' : $pwnew_active = '0';
if (isset($pwnew_active) && $pwnew_active == "1") {
$password_new = $postarray['user_new_pass'];
$password_new2 = $postarray['user_new_pass2'];
}
if (!check_login($username, $password_old) == "user") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (isset($password_new) && isset($password_new2)) {
if (!empty($password_new2) && !empty($password_new)) {
if ($password_new2 != $password_new) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['password_mismatch'])
);
return false;
}
if (strlen($password_new) < "6" ||
!preg_match('/[A-Za-z]/', $password_new) ||
!preg_match('/[0-9]/', $password_new)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['password_complexity'])
);
return false;
}
$password_hashed = hash_password($password_new);
try {
$stmt = $pdo->prepare("UPDATE `mailbox` SET `modified` = :modified, `password` = :password_hashed WHERE `username` = :username");
$stmt->execute(array(
':password_hashed' => $password_hashed,
':modified' => date('Y-m-d H:i:s'),
':username' => $username
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
}
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], $username)
);
}
function get_spam_score($username = null) {
global $pdo;
$default = "5, 15";
if (isset($username) && filter_var($username, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $username)) {
return false;
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
try {
$stmt = $pdo->prepare("SELECT `value` FROM `filterconf` WHERE `object` = :username AND
(`option` = 'lowspamlevel' OR `option` = 'highspamlevel')");
$stmt->execute(array(':username' => $username));
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
if (empty($num_results)) {
return $default;
}
else {
try {
$stmt = $pdo->prepare("SELECT `value` FROM `filterconf` WHERE `option` = 'highspamlevel' AND `object` = :username");
$stmt->execute(array(':username' => $username));
$highspamlevel = $stmt->fetch(PDO::FETCH_ASSOC);
$stmt = $pdo->prepare("SELECT `value` FROM `filterconf` WHERE `option` = 'lowspamlevel' AND `object` = :username");
$stmt->execute(array(':username' => $username));
$lowspamlevel = $stmt->fetch(PDO::FETCH_ASSOC);
return $lowspamlevel['value'].', '.$highspamlevel['value'];
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
}
}
function edit_spam_score($postarray) {
// Array items
// 'username' can be set, defaults to mailcow_cc_username
// 'lowspamlevel'
// 'highspamlevel'
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
$lowspamlevel = explode(',', $postarray['score'])[0];
$highspamlevel = explode(',', $postarray['score'])[1];
if (!is_numeric($lowspamlevel) || !is_numeric($highspamlevel)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("DELETE FROM `filterconf` WHERE `object` = :username
AND (`option` = 'lowspamlevel' OR `option` = 'highspamlevel')");
$stmt->execute(array(
':username' => $username
));
$stmt = $pdo->prepare("INSERT INTO `filterconf` (`object`, `option`, `value`)
VALUES (:username, 'highspamlevel', :highspamlevel)");
$stmt->execute(array(
':username' => $username,
':highspamlevel' => $highspamlevel
));
$stmt = $pdo->prepare("INSERT INTO `filterconf` (`object`, `option`, `value`)
VALUES (:username, 'lowspamlevel', :lowspamlevel)");
$stmt->execute(array(
':username' => $username,
':lowspamlevel' => $lowspamlevel
));
}
catch (PDOException $e) {
$stmt = $pdo->prepare("DELETE FROM `filterconf` WHERE `object` = :username
AND (`option` = 'lowspamlevel' OR `option` = 'highspamlevel')");
$stmt->execute(array(
':username' => $username
));
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], $username)
);
}
function get_policy_list($object = null) {
// 'object' can be be set, if not, default to mailcow_cc_username
global $lang;
global $pdo;
if (isset($object)) {
if (!filter_var($object, FILTER_VALIDATE_EMAIL) && is_valid_domain_name($object)) {
$object = idn_to_ascii(strtolower(trim($object)));
if (!hasDomainAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $object)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
elseif (filter_var($object, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $object)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
}
else {
$object = $_SESSION['mailcow_cc_username'];
}
try {
// WHITELIST
$stmt = $pdo->prepare("SELECT `object`, `value`, `prefid` FROM `filterconf` WHERE `option`='whitelist_from' AND (`object` = :username OR `object` = SUBSTRING_INDEX(:username_domain, '@' ,-1))");
$stmt->execute(array(':username' => $object, ':username_domain' => $object));
$rows['whitelist'] = $stmt->fetchAll(PDO::FETCH_ASSOC);
// BLACKLIST
$stmt = $pdo->prepare("SELECT `object`, `value`, `prefid` FROM `filterconf` WHERE `option`='blacklist_from' AND (`object` = :username OR `object` = SUBSTRING_INDEX(:username_domain, '@' ,-1))");
$stmt->execute(array(':username' => $object, ':username_domain' => $object));
$rows['blacklist'] = $stmt->fetchAll(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
}
return $rows;
}
function add_policy_list_item($postarray) {
// Array data
// Either 'domain' or 'username' can be be set
// If none of the above is set, default to mailcow_cc_username
//
// If 'delete_prefid' then delete item id
global $lang;
global $pdo;
(isset($postarray['username'])) ? $object = $postarray['username'] : null;
(isset($postarray['domain'])) ? $object = $postarray['domain'] : null;
(!isset($object)) ? $object = $_SESSION['mailcow_cc_username'] : null;
if (is_valid_domain_name($object)) {
if (!hasDomainAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $object)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
$object = idn_to_ascii(strtolower(trim($object)));
}
else {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $object)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
($postarray['object_list'] == "bl") ? $object_list = "blacklist_from" : null;
($postarray['object_list'] == "wl") ? $object_list = "whitelist_from" : null;
$object_from = preg_replace('/\.+/', '.', rtrim(preg_replace("/\.\*/", "*", trim(strtolower($postarray['object_from']))), '.'));
if (!ctype_alnum(str_replace(array('@', '.', '-', '*'), '', $object_from))) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['policy_list_from_invalid'])
);
return false;
}
if ($object_list != "blacklist_from" && $object_list != "whitelist_from") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("SELECT `object` FROM `filterconf`
WHERE (`option` = 'whitelist_from' OR `option` = 'blacklist_from')
AND `object` = :object
AND `value` = :object_from");
$stmt->execute(array(':object' => $object, ':object_from' => $object_from));
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
if ($num_results != 0) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['policy_list_from_exists'])
);
return false;
}
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
try {
$stmt = $pdo->prepare("INSERT INTO `filterconf` (`object`, `option` ,`value`)
VALUES (:object, :object_list, :object_from)");
$stmt->execute(array(
':object' => $object,
':object_list' => $object_list,
':object_from' => $object_from
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['object_modified'], $object)
);
}
function delete_policy_list_item($postarray) {
// Array data
// Either 'domain' or 'username' can be be set
// If none of the above is set, default to mailcow_cc_username
//
// 'delete_prefid' is item to be deleted
global $lang;
global $pdo;
(isset($postarray['username'])) ? $object = $postarray['username'] : null;
(isset($postarray['domain'])) ? $object = $postarray['domain'] : null;
(!isset($object)) ? $object = $_SESSION['mailcow_cc_username'] : null;
if (is_valid_domain_name($object)) {
if (!hasDomainAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $object)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
$object = idn_to_ascii(strtolower(trim($object)));
}
else {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $object)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
if (!is_numeric($postarray['delete_prefid'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("DELETE FROM `filterconf` WHERE `object` = :object AND `prefid` = :prefid");
$stmt->execute(array(
':object' => $object,
':prefid' => $postarray['delete_prefid']
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['object_modified'], $object)
);
return true;
}
function get_syncjobs($username = null) {
// 'username' can be be set, if not, default to mailcow_cc_username
global $lang;
global $pdo;
$data = array();
if (isset($username) && filter_var($username, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $username)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
try {
$stmt = $pdo->prepare("SELECT *, CONCAT(LEFT(`password1`, 3), '…') as `password1_short`
FROM `imapsync`
WHERE `user2` = :username");
$stmt->execute(array(':username' => $username));
$data = $stmt->fetchAll(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
}
return $data;
}
function get_syncjob_details($id) {
global $lang;
global $pdo;
$syncjobdetails = array();
if ($_SESSION['mailcow_cc_role'] != "user" &&
$_SESSION['mailcow_cc_role'] != "admin") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (!is_numeric($id)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("SELECT * FROM `imapsync` WHERE (`user2` = :username OR 'admin' = :role) AND id = :id");
$stmt->execute(array(':id' => $id, ':role' => $_SESSION['mailcow_cc_role'], ':username' => $_SESSION['mailcow_cc_username']));
$syncjobdetails = $stmt->fetch(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
}
return $syncjobdetails;
}
function delete_syncjob($postarray) {
// Array items
// 'username' can be set, defaults to mailcow_cc_username
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
$id = $postarray['id'];
if (!is_numeric($id)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("DELETE FROM `imapsync` WHERE `user2` = :username AND `id`= :id");
$stmt->execute(array(
':username' => $username,
':id' => $id,
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], htmlspecialchars($username))
);
return true;
}
function add_syncjob($postarray) {
// Array items
// 'username' can be set, defaults to mailcow_cc_username
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
isset($postarray['active']) ? $active = '1' : $active = '0';
isset($postarray['delete2duplicates']) ? $delete2duplicates = '1' : $delete2duplicates = '0';
$port1 = $postarray['port1'];
$host1 = $postarray['host1'];
$password1 = $postarray['password1'];
$exclude = $postarray['exclude'];
$maxage = $postarray['maxage'];
$subfolder2 = $postarray['subfolder2'];
$user1 = $postarray['user1'];
$mins_interval = $postarray['mins_interval'];
$enc1 = $postarray['enc1'];
if (empty($subfolder2)) {
$subfolder2 = "";
}
if (!isset($maxage) || !filter_var($maxage, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 32767)))) {
$maxage = "0";
}
if (!filter_var($port1, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 65535)))) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (!filter_var($mins_interval, FILTER_VALIDATE_INT, array('options' => array('min_range' => 10, 'max_range' => 3600)))) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (!is_valid_domain_name($host1)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if ($enc1 != "TLS" && $enc1 != "SSL" && $enc1 != "PLAIN") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (@preg_match("/" . $exclude . "/", null) === false) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("SELECT `user2`, `user1` FROM `imapsync`
WHERE `user2` = :user2 AND `user1` = :user1");
$stmt->execute(array(':user1' => $user1, ':user2' => $username));
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
if ($num_results != 0) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['object_exists'], htmlspecialchars($host1 . ' / ' . $user1))
);
return false;
}
try {
$stmt = $pdo->prepare("INSERT INTO `imapsync` (`user2`, `exclude`, `maxage`, `subfolder2`, `host1`, `authmech1`, `user1`, `password1`, `mins_interval`, `port1`, `enc1`, `delete2duplicates`, `active`)
VALUES (:user2, :exclude, :maxage, :subfolder2, :host1, :authmech1, :user1, :password1, :mins_interval, :port1, :enc1, :delete2duplicates, :active)");
$stmt->execute(array(
':user2' => $username,
':exclude' => $exclude,
':maxage' => $maxage,
':subfolder2' => $subfolder2,
':host1' => $host1,
':authmech1' => 'PLAIN',
':user1' => $user1,
':password1' => $password1,
':mins_interval' => $mins_interval,
':port1' => $port1,
':enc1' => $enc1,
':delete2duplicates' => $delete2duplicates,
':active' => $active,
));
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], $username)
);
return true;
}
function edit_syncjob($postarray) {
// Array items
// 'username' can be set, defaults to mailcow_cc_username
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
isset($postarray['active']) ? $active = '1' : $active = '0';
isset($postarray['delete2duplicates']) ? $delete2duplicates = '1' : $delete2duplicates = '0';
$id = $postarray['id'];
$port1 = $postarray['port1'];
$host1 = $postarray['host1'];
$password1 = $postarray['password1'];
$exclude = $postarray['exclude'];
$maxage = $postarray['maxage'];
$subfolder2 = $postarray['subfolder2'];
$user1 = $postarray['user1'];
$mins_interval = $postarray['mins_interval'];
$enc1 = $postarray['enc1'];
if (empty($subfolder2)) {
$subfolder2 = "";
}
if (!isset($maxage) || !filter_var($maxage, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 32767)))) {
$maxage = "0";
}
if (!filter_var($port1, FILTER_VALIDATE_INT, array('options' => array('min_range' => 1, 'max_range' => 65535)))) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (!filter_var($mins_interval, FILTER_VALIDATE_INT, array('options' => array('min_range' => 10, 'max_range' => 3600)))) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (!is_valid_domain_name($host1)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if ($enc1 != "TLS" && $enc1 != "SSL" && $enc1 != "PLAIN") {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
if (@preg_match("/" . $exclude . "/", null) === false) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("SELECT `user2` FROM `imapsync`
WHERE `user2` = :user2 AND `id` = :id");
$stmt->execute(array(':user2' => $username, ':id' => $id));
$num_results = count($stmt->fetchAll(PDO::FETCH_ASSOC));
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
if (empty($num_results)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
try {
$stmt = $pdo->prepare("UPDATE `imapsync` set `maxage` = :maxage, `subfolder2` = :subfolder2, `exclude` = :exclude, `host1` = :host1, `user1` = :user1, `password1` = :password1, `mins_interval` = :mins_interval, `port1` = :port1, `enc1` = :enc1, `delete2duplicates` = :delete2duplicates, `active` = :active
WHERE `user2` = :user2 AND `id` = :id");
$stmt->execute(array(
':user2' => $username,
':id' => $id,
':exclude' => $exclude,
':maxage' => $maxage,
':subfolder2' => $subfolder2,
':host1' => $host1,
':user1' => $user1,
':password1' => $password1,
':mins_interval' => $mins_interval,
':port1' => $port1,
':enc1' => $enc1,
':delete2duplicates' => $delete2duplicates,
':active' => $active,
));
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], $username)
);
return true;
}
function edit_tls_policy($postarray) {
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
isset($postarray['tls_in']) ? $tls_in = '1' : $tls_in = '0';
isset($postarray['tls_out']) ? $tls_out = '1' : $tls_out = '0';
$username = $_SESSION['mailcow_cc_username'];
if (!filter_var($username, FILTER_VALIDATE_EMAIL)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['username_invalid'])
);
return false;
}
try {
$stmt = $pdo->prepare("UPDATE `mailbox` SET `tls_enforce_out` = :tls_out, `tls_enforce_in` = :tls_in WHERE `username` = :username");
$stmt->execute(array(
':tls_out' => $tls_out,
':tls_in' => $tls_in,
':username' => $username
));
}
catch (PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], $username)
);
}
function get_tls_policy($username = null) {
global $lang;
global $pdo;
$data = array();
if (isset($username) && filter_var($username, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $username)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
try {
$stmt = $pdo->prepare("SELECT `tls_enforce_out`, `tls_enforce_in` FROM `mailbox` WHERE `username` = :username");
$stmt->execute(array(':username' => $username));
$data = $stmt->fetch(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
return $data;
}
function edit_delimiter_action($postarray) {
// Array items
// 'username' can be set, defaults to mailcow_cc_username
global $lang;
global $pdo;
if (isset($postarray['username']) && filter_var($postarray['username'], FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $postarray['username'])) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['access_denied'])
);
return false;
}
else {
$username = $postarray['username'];
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
($postarray['tagged_mail_handler'] == "subject") ? $wants_tagged_subject = '1' : $wants_tagged_subject = '0';
if (!filter_var($username, FILTER_VALIDATE_EMAIL)) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => sprintf($lang['danger']['username_invalid'])
);
return false;
}
try {
$stmt = $pdo->prepare("UPDATE `mailbox` SET `wants_tagged_subject` = :wants_tagged_subject WHERE `username` = :username");
$stmt->execute(array(':username' => $username, ':wants_tagged_subject' => $wants_tagged_subject));
$SelectData = $stmt->fetch(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
$_SESSION['return'] = array(
'type' => 'success',
'msg' => sprintf($lang['success']['mailbox_modified'], $username)
);
return true;
}
function get_delimiter_action($username = null) {
// 'username' can be set, defaults to mailcow_cc_username
global $lang;
global $pdo;
$data = array();
if (isset($username) && filter_var($username, FILTER_VALIDATE_EMAIL)) {
if (!hasMailboxObjectAccess($_SESSION['mailcow_cc_username'], $_SESSION['mailcow_cc_role'], $username)) {
return false;
}
}
else {
$username = $_SESSION['mailcow_cc_username'];
}
try {
$stmt = $pdo->prepare("SELECT `wants_tagged_subject` FROM `mailbox` WHERE `username` = :username");
$stmt->execute(array(':username' => $username));
$data = $stmt->fetch(PDO::FETCH_ASSOC);
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
return $data;
}
function user_get_alias_details($username) {
global $lang;
global $pdo;
if ($_SESSION['mailcow_cc_role'] == "user") {
$username = $_SESSION['mailcow_cc_username'];
}
if (!filter_var($username, FILTER_VALIDATE_EMAIL)) {
return false;
}
try {
$data['address'] = $username;
$stmt = $pdo->prepare("SELECT IFNULL(GROUP_CONCAT(`address` SEPARATOR ', '), '&#10008;') AS `aliases` FROM `alias` WHERE `goto` = :username_goto AND `address` NOT LIKE '@%' AND `address` != :username_address");
$stmt->execute(array(':username_goto' => $username, ':username_address' => $username));
$run = $stmt->fetchAll(PDO::FETCH_ASSOC);
while ($row = array_shift($run)) {
$data['aliases'] = $row['aliases'];
}
$stmt = $pdo->prepare("SELECT IFNULL(GROUP_CONCAT(local_part, '@', alias_domain SEPARATOR ', '), '&#10008;') AS `ad_alias` FROM `mailbox`
LEFT OUTER JOIN `alias_domain` on `target_domain` = `domain`
WHERE `username` = :username ;");
$stmt->execute(array(':username' => $username));
$run = $stmt->fetchAll(PDO::FETCH_ASSOC);
while ($row = array_shift($run)) {
$data['ad_alias'] = $row['ad_alias'];
}
$stmt = $pdo->prepare("SELECT IFNULL(GROUP_CONCAT(`send_as` SEPARATOR ', '), '&#10008;') AS `send_as` FROM `sender_acl` WHERE `logged_in_as` = :username AND `send_as` NOT LIKE '@%';");
$stmt->execute(array(':username' => $username));
$run = $stmt->fetchAll(PDO::FETCH_ASSOC);
while ($row = array_shift($run)) {
$data['aliases_also_send_as'] = $row['send_as'];
}
$stmt = $pdo->prepare("SELECT IFNULL(GROUP_CONCAT(`send_as` SEPARATOR ', '), '&#10008;') AS `send_as` FROM `sender_acl` WHERE `logged_in_as` = :username AND `send_as` LIKE '@%';");
$stmt->execute(array(':username' => $username));
$run = $stmt->fetchAll(PDO::FETCH_ASSOC);
while ($row = array_shift($run)) {
$data['aliases_send_as_all'] = $row['send_as'];
}
$stmt = $pdo->prepare("SELECT IFNULL(GROUP_CONCAT(`address` SEPARATOR ', '), '&#10008;') as `address` FROM `alias` WHERE `goto` = :username AND `address` LIKE '@%';");
$stmt->execute(array(':username' => $username));
$run = $stmt->fetchAll(PDO::FETCH_ASSOC);
while ($row = array_shift($run)) {
$data['is_catch_all'] = $row['address'];
}
return $data;
}
catch(PDOException $e) {
$_SESSION['return'] = array(
'type' => 'danger',
'msg' => 'MySQL: '.$e
);
return false;
}
}
function is_valid_domain_name($domain_name) {
if (empty($domain_name)) {
return false;
}
$domain_name = idn_to_ascii($domain_name);
return (preg_match("/^([a-z\d](-*[a-z\d])*)(\.([a-z\d](-*[a-z\d])*))*$/i", $domain_name)
&& preg_match("/^.{1,253}$/", $domain_name)
&& preg_match("/^[^\.]{1,63}(\.[^\.]{1,63})*$/", $domain_name));
}
?>
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