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Editing: functions.inc.php

<?php

use PHPMailer\PHPMailer\PHPMailer;

function handleTrailingSlashRedirect(SiteInfo $siteInfo, SiteRequestInfo $requestInfo, array $disableNoSlashUrls) {
	if (!$requestInfo->page) return;
	$ru = $requestInfo->requestUri;
	if ($ru && isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] == 'GET' && !file_get_contents('php://input')) {
		$qs = getQueryString();
		$hasTrailingSlash = (substr(ltrim($ru, '/'), -1) == '/');

$route = explode('/', ($requestInfo->route ? $requestInfo->route : ''));
		$disableNoSlashes = false;
		if (count($route) == 1 && in_array(strtolower($route[0]), $disableNoSlashUrls)) {
			$disableNoSlashes = true;
		}

if ($siteInfo->useTrailingSlashes && !$hasTrailingSlash) {
			header('Location: '.getBaseUrl() . $ru.'/'.($qs ? '?'.$qs : ''), true, 301);
			exit();
		} else if (!$siteInfo->useTrailingSlashes && $hasTrailingSlash && !$disableNoSlashes) {
			header('Location: '.getBaseUrl() . rtrim($ru, '/').($qs ? '?'.$qs : ''), true, 301);
			exit();
		}
	}
}

/** @param string $pageId */
function getPageIndexById($pageId, SiteInfo $siteInfo) {
	foreach ($siteInfo->pages as $id => $pi) {
		if ($pageId == $pi['id']) return $id;
	}
	return null;
}

function generateCanonicalUrl($sitemapUrls) {
	$canonical = getCurrentCanonicalUrl($sitemapUrls);
	if ($canonical) {
		return '<link rel="canonical" href="'.htmlspecialchars($canonical).'" />';
	}

return '';
}

function getCurrentCanonicalUrl($sitemapUrls) {
	$result = '';

$url = getCurrUrl(true);

$parsedUrl = parse_url($url);
	$components = isset($parsedUrl['path']) ? $parsedUrl['path'] : $url;
	$components = array_filter(explode('/', $components), function($p) { return trim($p) != ''; });
	if (empty($components)) $components[] = '';

$sitemapUrls = array_flip(array_map(function ($url) {
		$parsedUrl = parse_url($url);
		return isset($parsedUrl['path']) ? $parsedUrl['path'] : $url;
	}, $sitemapUrls));

$lim = count($components);
	for ($i = 0; $i < $lim; $i++) {
		$componentsString = implode('/', $components);
		if ($componentsString) {
			$item = '/' . $componentsString . (SiteModule::$siteInfo->useTrailingSlashes ? '/' : '');
		} else {
			$item = '/';
		}

if (isset($sitemapUrls[$item])) {
			$isHttps = isHttps();
			list($host) = explode(':', (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : 'localhost'), 2);
			$host = ($isHttps ? 'https' : 'http').'://'.$host;
			$result = $host . $item;
			break;
		}

$components = array_slice($components, 0, count($components) - 1);
	}

return $result;
}

function getOrigin() {
	$baseUrl = getBaseUrl();
	$parts = parse_url($baseUrl);
	return $parts['scheme'].'://'.$parts['host'].
			((isset($parts['port']) && $parts['port']) ? ':'.$parts['port'] : '').'/';
			
}

function randomHash($len = 17, $onlyDigits = false) {
	$str = ''; $chars = '0123456789'.($onlyDigits ? '' : 'ABCDEFGHJKLMNOPQRSTUVWXZ');
	for ($i = 0; $i < $len; $i++) {
		$min = ($onlyDigits && $i == 0) ? 1 : 0; $max = strlen($chars) - 1;
		$str .= $chars[rand($min, $max)];
	}
	return $str;
}

function getPreferredLang() {
	return SiteModule::getPreferredLang();
}

function renderComments($pageId = null) {
	$comments = array();
	$dataFile = dirname(__FILE__).'/'.$pageId.'.comments.dat';
	$dataStr = is_file($dataFile) ? file_get_contents($dataFile) : null;
	$data = $dataStr ? json_decode($dataStr) : null;
	if ($data && is_array($data)) {
		$comments = array_reverse($data);
	}
	include dirname(__FILE__).'/comments.tpl.php';
}

/**
 * Parse multi-lingual value.
 * @param mixed $value
 * @param string $ln
 * @param string $default
 * @return string
 */
function tr_($value, $ln = '', $default = '') {
	if (!$ln) $ln = SiteModule::$lang;
	if (!$ln) $ln = SiteModule::$siteInfo->defLang;
	if (!$ln) $ln = SiteModule::$siteInfo->baseLang;
	if (is_array($value)) {
		if ($ln && isset($value[$ln]) && $value[$ln] !== '') {
			return $value[$ln];
		} else {
			foreach ($value as $v) { return $v; }
		}
	} else if (is_object($value)) {
		if ($ln && isset($value->{$ln}) && $value->{$ln} !== '') {
			return $value->{$ln};
		} else {
			foreach ($value as $v) { return $v; }
		}
	}
	return ($value) ? $value : $default;
}

/**
 * @param string|array|object $value
 * @return string[]
 */
function trLangs_($value) {
	$result = array();
	if (is_array($value)) {
		$langs = array_keys($value);
	} else if (is_object($value)) {
		$langs = array_keys(get_object_vars($value));
	} else {
		$langs = array();
	}
	foreach ($langs as $ln) {
		if ($ln) $result[$ln] = 1;
	}
	return array_keys($result);
}

function getServerPort() {
	$port = (isset($_SERVER['HTTP_X_FORWARDED_PORT']) && is_numeric($_SERVER['HTTP_X_FORWARDED_PORT']))
		? intval($_SERVER['HTTP_X_FORWARDED_PORT'])
		: 0;
	if (!$port && isset($_SERVER['SERVER_PORT']) && is_numeric($_SERVER['SERVER_PORT'])) {
		$port = intval($_SERVER['SERVER_PORT']);
	}
	return $port;
}

function getRemoteAddr() {
	$remoteAddr = (isset($_SERVER['REMOTE_ADDR']) && is_string($_SERVER['REMOTE_ADDR'])) ? $_SERVER['REMOTE_ADDR'] : '';
	if ($remoteAddr != '127.0.0.1' && $remoteAddr != '::1') return $remoteAddr;
	
	$forwarded = (isset($_SERVER['HTTP_X_FORWARDED_FOR']) && is_string($_SERVER['HTTP_X_FORWARDED_FOR']))
		? $_SERVER['HTTP_X_FORWARDED_FOR']
		: '';
	$ips = explode(',', trim($forwarded, " \t\r\n\0\x0B,"));
	return ($ip = trim($ips[count($ips) - 1])) ? $ip : $remoteAddr;
}

function isHttps() {
	return (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && strpos($_SERVER['HTTP_X_FORWARDED_PROTO'], 'https') !== false
			|| isset($_SERVER['HTTP_X_FORWARDED_PROTOCOL']) && $_SERVER['HTTP_X_FORWARDED_PROTOCOL'] == 'https'
			|| isset($_SERVER['HTTP_X_REMOTE_PROTO']) && $_SERVER['HTTP_X_REMOTE_PROTO'] == 'https'
			|| isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1)
			|| isset($_SERVER['HTTP_X_HTTPS']) && ($_SERVER['HTTP_X_HTTPS'] == 'on' || $_SERVER['HTTP_X_HTTPS'] == 1)
			|| isset($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] == 443
			|| isset($_SERVER['REQUEST_SCHEME']) && $_SERVER['REQUEST_SCHEME'] == 'https'
			|| isset($_SERVER['SERVER_PROTOCOL']) && preg_match('#https#i', $_SERVER['SERVER_PROTOCOL'])
			|| isset($_SERVER['HTTP_CF_VISITOR']) && preg_match('#https#i', $_SERVER['HTTP_CF_VISITOR'])
			|| isset($_SERVER['HTTP_SSL']) && $_SERVER['HTTP_SSL']);
}

function handleForms($page_id, SiteInfo $siteInfo) {
	global $post;
	$forms = $siteInfo->forms;
	// check to ensure that all parameters are ok as well as protect from bots
	// and hackers
	$post = $_POST;
	if (!isset($post['wb_form_id'])
		|| $post['message'] !== ''
		|| !isset($forms)
		|| !is_array($forms)
		|| !isset($page_id)
		|| !(isset($forms[$page_id]) || isset($forms['blog']) || isset($forms['store']))
		|| !(isset($forms[$page_id][$post['wb_form_id']]) || isset($forms['blog'][$post['wb_form_id']]) || isset($forms['store'][$post['wb_form_id']]))
		|| !(isset($forms[$page_id][$post['wb_form_id']]['fields']) || isset($forms['blog'][$post['wb_form_id']]['fields']) || isset($forms['store'][$post['wb_form_id']]['fields']))
		|| isset($post['forms'])
		|| isset($_GET['forms'])
	) return;

$form = isset($forms[$page_id][$post['wb_form_id']])
		? $forms[$page_id][$post['wb_form_id']] : (isset($forms['store'][$post['wb_form_id']])
			? $forms['store'][$post['wb_form_id']] : (isset($forms['blog'][$post['wb_form_id']])
				? $forms['blog'][$post['wb_form_id']] : null));
	if (!$form) return;
	
	$formSendType = isset($form['formSendType']) ? $form['formSendType'] : 'email';
	$apiPostUrl = (isset($form['postUrl']) && $form['postUrl']) ? $form['postUrl'] : null;
	$webhookUrl = (isset($form['webhookUrl']) && $form['webhookUrl']) ? $form['webhookUrl'] : null;
	$brandId = (isset($form['brandId']) && $form['brandId']) ? $form['brandId'] : null;
	$telegramApiToken = (isset($form['telegramApiToken']) && $form['telegramApiToken']) ? trim($form['telegramApiToken']) : null;
	$telegramChatId = (isset($form['telegramChatId']) && $form['telegramChatId']) ? trim($form['telegramChatId']) : null;
	
	try {
		global $wb_form_send_state, $wb_form_send_success, $wb_form_id, $formErrors, $wb_form_popup_mode, $wb_target_origin;
		
		$formErrors = new stdClass();
		$wb_form_send_state = false;
		$wb_form_send_success = false;
		$wb_form_id = $post['wb_form_id'];
		$wb_form_popup_mode = (isset($post['wb_popup_mode']) && $post['wb_popup_mode'] == 1);
		$wb_target_origin = getOrigin();
		
		$wb_form_sending_failed = SiteModule::__('Form sending failed');

if (isset($form['recVersion']) && ($form['recVersion'] == 'v2' || $form['recVersion'] == 'v3')) {
			if (isset($form['recSiteKey']) && $form['recSiteKey'] && isset($form['recSecretKey']) && $form['recSecretKey']) {
				if (isset($post['cookieDontAllow']) && $post['cookieDontAllow'] == '1') {
					throw new ErrorException(SiteModule::__('Please accept cookie consent to submit the form'));
				}
				// reCAPTCHA is enabled
				$recResp = (isset($post['g-recaptcha-response']) ? $post['g-recaptcha-response'] : '');
				$remoteAddr = getRemoteAddr();
				$respStr = $recResp ? _http_get('https://www.google.com/recaptcha/api/siteverify', array(
					'secret' => $form['recSecretKey'],
					'response' => $recResp,
					'remoteip' => $remoteAddr ? $remoteAddr : null
				)) : null;
				$resp = $respStr ? json_decode($respStr) : null;
				if (!$resp || !isset($resp->success) || !$resp->success) {
					throw new ErrorException(SiteModule::__('Form was not sent, are you a robot?'));
				}
			}
		} elseif (isset($form['recVersion']) && $form['recVersion'] == 'yandex') {
			if (isset($form['recSiteKey']) && $form['recSiteKey']) {
				$recResp = (isset($post['smart-token']) ? $post['smart-token'] : '');
				$remoteAddr = getRemoteAddr();

$ch = curl_init("https://smartcaptcha.yandexcloud.net/validate");
				$args = [
					"secret" => $form['recSecretKey'],
					"token" => $recResp,
					"ip" => $remoteAddr ? $remoteAddr : null,
				];
				curl_setopt($ch, CURLOPT_TIMEOUT, 1);
				curl_setopt($ch, CURLOPT_POST, true);
				curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($args));
				curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$server_output = curl_exec($ch);
				$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
				curl_close($ch);

if ($httpcode !== 200) {
					echo "Allow access due to an error: code=$httpcode; message=$server_output\n";
					return true;
				}

$resp = json_decode($server_output);
				if ($resp->status !== "ok") {
					throw new ErrorException(SiteModule::__('Form was not sent, are you a robot?'));
				}
			}
		} elseif (isset($form['recVersion']) && $form['recVersion'] == 'hcaptcha') {
			if (isset($form['recSiteKey']) && $form['recSiteKey']) {
				$recResp = (isset($post['h-captcha-response']) ? $post['h-captcha-response'] : '');
				$remoteAddr = getRemoteAddr();

$ch = curl_init("https://api.hcaptcha.com/siteverify");
				$args = [
					"secret" => $form['recSecretKey'],
					"response" => $recResp,
					"remoteip" => $remoteAddr ? $remoteAddr : null,
				];
				curl_setopt($ch, CURLOPT_TIMEOUT, 1);
				curl_setopt($ch, CURLOPT_POST, true);
				curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($args));
				curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);

$server_output = curl_exec($ch);
				$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
				curl_close($ch);

if ($httpcode !== 200) {
					echo "Allow access due to an error: code=$httpcode; message=$server_output\n";
					return true;
				}

$resp = json_decode($server_output);
				if ($resp->success !== true && $resp->success !== 'true') {
					throw new ErrorException(SiteModule::__('Form was not sent, are you a robot?'));
				}
			}
		}

$attachmentsDir = dirname(__FILE__) . DIRECTORY_SEPARATOR . "forms_attachments";

$fields = $form['fields'];
		if (isset($form['useGclidCapture']) && $form['useGclidCapture'] && isset($_GET['gclid'])) {
			$idx = count($fields);
			$fields[$idx] = [
				"fidx" => $idx,
				"name" => "gclid",
				"default" => htmlspecialchars($_GET['gclid']),
				"type" => "hidden",
				"required" => false,
				"enabled" => true,
				"settings" => [],
			];
			$data[$idx] = htmlspecialchars($_GET['gclid']);
		}

$email_list = array_map('trim', preg_split('#[;,]#', $form['email'], -1, PREG_SPLIT_NO_EMPTY));
		$mail_to = array();
		foreach ($email_list as $eml) {
			if (($m = is_mail($eml))) { $mail_to[] = $m; }
		}
		$mail_from = reset($mail_to);
		$mail_from_name = null;

$fileSizeTotal = 0;
		$data = Array();
		foreach($fields as $fKey => $field) {
			$idx = $field['fidx'];
			if (isset($field['enabled']) && (!$field['enabled'])) continue;
			$fieldName = "wb_input_$idx";
			$required = isset($field["required"]) ? $field["required"] : ($field["type"] != "file");

if (!$field['name'] && $field["type"] !== "checkbox" && $formSendType !== 'telegram') {
				$fields[$fKey]['name'] = SiteModule::__('Empty');
			}

if( $field["type"] === "file" ) {
				if( !isset($_FILES[$fieldName]) )
					continue;
				$err = null;
				foreach( $_FILES[$fieldName]["tmp_name"] as $fileIdx => $fileTmpName) {
					if( !$fileTmpName )
						continue;
					$fileName = $_FILES[$fieldName]["name"][$fileIdx];
					$fileSize = $_FILES[$fieldName]["size"][$fileIdx];
					$fileError = $_FILES[$fieldName]["error"][$fileIdx];
					$maxFileSizeTotalMB = isset($field["settings"]["fileMaxSize"]) ? intval($field["settings"]["fileMaxSize"]) : 0;
					if( !$maxFileSizeTotalMB )
						$maxFileSizeTotalMB = 2;
					$maxFileSizeTotal = $maxFileSizeTotalMB * 1024 * 1024;

if( $fileSize > $maxFileSizeTotal || $fileError == UPLOAD_ERR_INI_SIZE || $fileError == UPLOAD_ERR_FORM_SIZE ) {
						if( !$err )
							$err = "";
						$err .= sprintf(SiteModule::__('File %s is too big'), '"'.$fileName.'"')."\n";
					}
					else if( $fileError != 0 ) {
						if( !$err )
							$err = "";
						$err .= sprintf(SiteModule::__('File %s could not be uploaded for sending'), '"'.$fileName.'"')."\n";
					}
					else {
						$fileSizeTotal += $fileSize;
					}
				}
				if ($err) throw new ErrorException($err);
				// if( $fileSizeTotal > $maxFileSizeTotal ) {
					// throw new ErrorException(sprintf(SiteModule::__("Total size of attachments must not exceed %s MB"), $maxFileSizeTotalMB));
				// }
				if( !$fileSizeTotal && $required )
					$formErrors->required[] = $fieldName;
				if ($fileSizeTotal) @set_time_limit(180);
			}
			else if( $field["type"] == "hidden" ) {
				$data[$idx] = tr_($field['default']);
				if (isset($post[$fieldName])) {
					$data[$idx] = $post[$fieldName];
				}
			}
			else if( $field["type"] == "range" ) {
				$data[$idx] = array("from" => tr_($field['default']), "to" => tr_($field['default']));
				if (isset($post[$fieldName])) {
					$data[$idx] = $post[$fieldName];
				}
				if( (!$data[$idx] || empty($data[$idx]["from"]) || empty($data[$idx]["to"])) && $required )
					$formErrors->required[] = $fieldName;
			}
			else if( $field["type"] == "checkbox" ) {
				$options = isset($field["settings"]["options"]) ? $field["settings"]["options"] : array();
				foreach ($options as &$item) {
					$item = html_entity_decode((string)tr_($item));
				}
				unset($item);

if (empty($post[$fieldName]) || count($field['settings']['options']) == 1) {
					$fields[$fKey]['name'] = $fields[$fKey]['name'] ? $fields[$fKey]['name'] : $field['settings']['options'][0];
					$data[$idx] = !empty($post[$fieldName]) ? true : false;
				}
				elseif (!isset($post[$fieldName])) {
					$data[$idx] = false;
				} elseif (is_array($post[$fieldName])) {
					$newValue = array();
					foreach ($post[$fieldName] as $item) {
						if (isset($options[$item])) {
							$newValue[] = $options[$item];
						}
					}
					$data[$idx] = $newValue;
				}
				else {
					$data[$idx] = true;
				}
				$fields[$fKey]['name'] = $fields[$fKey]['name'] ? $fields[$fKey]['name'] : SiteModule::__('Empty');

if( (!$data[$idx] || empty($data[$idx])) && $required )
					$formErrors->required[] = $fieldName;
			}
			else if( $field["type"] == "radiobox" ) {
				if (!isset($post[$fieldName])) {
					if( $required )
						$formErrors->required[] = $fieldName;
					$data[$idx] = false;
				}
				else {
					$options = isset($field["settings"]["options"]) ? $field["settings"]["options"] : array();
					foreach ($options as &$item) {
						$item = html_entity_decode(tr_($item));
					}

$data[$idx] = isset($options[$post[$fieldName]]) ? $options[$post[$fieldName]] : false;
				}
			}
			else {
				if (!isset($post[$fieldName])) {
					error_log("[Form error]: Field $fieldName is not present");
					throw new ErrorException($wb_form_sending_failed." (6): ".sprintf(SiteModule::__('Field %s is not present'), $fieldName));
				}
				$max_len = ($field["type"]=="textarea")?65536:1024; // 65 kilobytes max for textarea and 1024 for other
				$valueRaw = $post[$fieldName];
				if (empty($valueRaw) && strlen($valueRaw) == 0 && $required) {
					if (!isset($formErrors->required)) $formErrors->required = array();
					$formErrors->required[] = $fieldName;
					$data[$idx] = $value = "";
				}
				else {
					$value = (strlen($valueRaw) > 0) ? substr(htmlspecialchars($valueRaw), 0, $max_len) : htmlspecialchars($valueRaw);
					if ($field["type"] == "select") {
						$options = isset($field["settings"]["options"]) ? $field["settings"]["options"] : array();
						foreach ($options as &$item) {
							$item = html_entity_decode(tr_($item) ?: '');
						}
						$data[$idx] = trim(in_array($value, $options) ? $value : (isset($options[intval($value)]) ? $options[intval($value)] : ''));
					} else
						$data[$idx] = $value;
				}
				if (($eml = is_mail($value))) $mail_from = $eml;
			}
		}

if (isset($post['object']) && $post['object'])
			$data['object'] = $post['object'];

$formErrors_t = (array) $formErrors;
		if (!empty($formErrors_t)) {
			throw new ErrorException($wb_form_sending_failed.' (7)');
		}

$attachmentsLogDir = dirname(__FILE__) . DIRECTORY_SEPARATOR . "forms_log_attachments";
		FormModule::logForm($attachmentsLogDir, $page_id, $post['wb_form_uuid'], $fields, $data);
		
		if ($formSendType == 'url' || $formSendType == 'telegram') {
			if (!class_exists('NetUtil')) {
				$netUtilFile = __DIR__.'/src/NetUtil.php';
				if (is_file($netUtilFile)) require_once $netUtilFile;
			}
			if (!class_exists('NetUtil')) {
				throw new ErrorException($wb_form_sending_failed.' (9)');
			}
		}

if ($formSendType == 'url') {
			$postData = array();
			foreach ($fields as $idx => $field) {
				$fieldName = "wb_input_$idx";
				if( $field["type"] === "file" ) {
					if( !isset($_FILES[$fieldName]) )
						continue;
					foreach( $_FILES[$fieldName]["tmp_name"] as $fileIdx => $fileTmpName) {
						if( !$fileTmpName )
							continue;
						$fileName = $_FILES[$fieldName]["name"][$fileIdx];
						$fileType = $_FILES[$fieldName]["type"][$fileIdx];
						if (class_exists('CURLFile')) {
							$postData["file_$fileIdx"] = new CURLFile($fileTmpName, $fileType, $fileName);
						} else {
							$postData["file_$fileIdx"] = '@'.$fileTmpName.';filename='.$fileName.';type='.$fileType;
						}
					}
				} elseif( is_array($data[$idx]) ) {
					$name = tr_($field["name"]);
					$value = $data[$idx];
					if ($field["name"] === '' && $field["type"] === 'checkbox') {
						$postData = array_merge($postData, array_fill_keys(array_values($value), true));
					} else {
						$postData[$name] = implode(',', $value);
					}
				} else {
					$name = tr_($field["name"]);
					$value = $data[$idx];
					$postData[$name] = $value;
				}
			}

if ($apiPostUrl) {
				try {
					$resp = NetUtil::request($apiPostUrl, $postData, NetUtil::METHOD_POST, array('Content-type: multipart/form-data'),
							array(NetUtil::OPT_PARAMS_AS_ARRAY => true, NetUtil::OPT_IGNORE_STATUS_CODE => true));
					$error = null;
				} catch (ErrorException $ex) {
					$resp = null;
					$error = $ex->getMessage();
				}
				if (isset($resp->statusCode) && $resp->statusCode >= 200 && $resp->statusCode < 300) {
					$wb_form_send_state = empty($form['sentMessage']) ? 'Form was sent.' : tr_($form['sentMessage']);
					$wb_form_send_success = true;
				} else {
					$statusCode = $resp ? $resp->statusCode : 0;
					error_log('[Form sending error]: Failed to submit to URL: response code('.$statusCode.')'.($error ? ': '.$error : ''));
					throw new ErrorException($wb_form_sending_failed.' (8)'.($error ? ': '.$error : ''));
				}
			}
			if ($webhookUrl) {
				if ($brandId) $postData['_brandId_'] = $brandId;
				$postData['_fromUrl_'] = getCurrUrl();
				try {
					$resp = NetUtil::request($apiPostUrl, $postData, NetUtil::METHOD_POST, array('Content-type: multipart/form-data'),
							array(NetUtil::OPT_PARAMS_AS_ARRAY => true, NetUtil::OPT_IGNORE_STATUS_CODE => true));
				} catch (ErrorException $ex) {}
			}
		}
		elseif ($formSendType == 'telegram') {
			$allowed_types = array('input', 'number', 'phone', 'email', 'textarea', 'checkbox', 'date', 'radiobox', 'select', 'hidden', 'range');

$messageData = [];
			foreach ($fields as $idx => $field) {
				$name = '';
				$fieldName = "wb_input_$idx";
				if (in_array($field['type'], $allowed_types)) {
					if (isset($post[$fieldName]) || $field['type'] == 'checkbox') {
						if ($field['type'] == 'range') {
							$value = $post[$fieldName]['from'] . ' - ' . $post[$fieldName]['to'];
						}
						elseif ($field['type'] == 'checkbox') {
							if (empty($post[$fieldName]) || count($field['settings']['options']) == 1) {
								$name = !$field['name'] ? $field['settings']['options'][0] : '';
								$value = !empty($post[$fieldName]) ? SiteModule::__('Yes') : SiteModule::__('No');
							}
							else {
								$value = [];
								foreach ($post[$fieldName] as $val) {
									$value[] = SiteModule::__(tr_($field['settings']['options'][$val]));
								}
								$value = implode(', ',  $value);
							}
						}
						elseif ($field['type'] == 'radiobox' || $field['type'] == 'select') {
							$options = array_map(function ($item) {
								return tr_($item);
							}, (isset($field['settings']['options']) && is_array($field['settings']['options'])) ? $field['settings']['options'] : []);
							$trval = in_array($post[$fieldName], $options) ? $post[$fieldName] : '';
							if (!is_string($trval)) $trval = '';
							$value = $trval;
						}
						elseif ($field['type'] == 'checkbox') {
							$value = "\n" . trim($post[$fieldName]);
						}
						else {
							$value = trim($post[$fieldName]);
						}
						$name = $name ? $name : (!$field['name'] ? SiteModule::__('Empty') : tr_($field['name']));
						$messageData[] = '<b>' . SiteModule::__(trim(strip_tags($name))) . ':</b>' . "\n" . $value;
					}
				}
			}

$message = implode("\n", $messageData);

$url = 'https://api.telegram.org/bot' . $telegramApiToken . '/sendMessage';
			$postData = array(
				'chat_id' => $telegramChatId,
				'text' => $message,
				'parse_mode' => 'HTML'
			);

try {
				$resp = NetUtil::request($url, $postData, NetUtil::METHOD_POST, array('Content-type: multipart/form-data'),
								array(NetUtil::OPT_PARAMS_AS_ARRAY => true, NetUtil::OPT_IGNORE_STATUS_CODE => true));

$body = json_decode($resp->body);
				if ($resp->statusCode != 200) {
					$error = $body->description;
					throw new ErrorException($error);
				}
				elseif (isset($body->ok) && $body->ok) {
					$wb_form_send_state = empty($form['sentMessage']) ? 'Form was sent.' : tr_($form['sentMessage']);
					$wb_form_send_success = true;
				}
			}
			catch (ErrorException $ex) {
				$error = $ex->getMessage();
				error_log("[Form telegram error]: {$error}");
				throw new ErrorException(SiteModule::__('Telegram error') . ': ' . $error);
			}
		}
		else {
			if (!$mail_from) $mail_from = reset($mail_to);

if (empty($mail_to)) {
				error_log('[Form configuration error]: receiver not specified');
				throw new ErrorException($wb_form_sending_failed.' (5): '.SiteModule::__('Receiver not specified'));
			}

if ($siteInfo->disableFormSending) {
//				throw new ErrorException(SiteModule::__('Form sending from preview is not available'));
			}
			requirePHPMailer();
			$mailer = new PHPMailer();
			$mailer->setLanguage(getPreferredLang());

// cleanup old attachments that were not removed due to unknown reasons
			if( is_dir($attachmentsDir) ) {
				$dir = opendir($attachmentsDir);
				if( $dir ) {
					while( $f = readdir($dir) ) {
						if( $f == "." || $f == ".." || $f == ".htaccess" )
							continue;
						$fp = $attachmentsDir . DIRECTORY_SEPARATOR . $f;
						if( !is_file($fp) )
							continue;
						if( filemtime($fp) < time() - 86400 )
							unlink($fp);
					}
					closedir($dir);
				}
			}

$movedFiles = array();
			foreach($fields as $field) {
				$idx = $field['fidx'];
				$fieldName = "wb_input_$idx";
				if( $field["type"] === "file" ) {
					if( !isset($_FILES[$fieldName]) )
						continue;
					if( !file_exists($attachmentsDir) ) {
						if( !mkdir($attachmentsDir, 0700) ) {
							error_log('[Form error]: Failed to create a directory for attachments');
							throw new ErrorException($wb_form_sending_failed.' (1): '.SiteModule::__('Failed to create a directory for attachments'));
						}
					}
					if( !is_dir($attachmentsDir) ) {
						error_log('[Form error]: Attachments inode on the server is not a directory');
						throw new ErrorException($wb_form_sending_failed.' (2): '.SiteModule::__('Attachments inode on the server is not a directory'));
					}
					foreach( $_FILES[$fieldName]["tmp_name"] as $fileIdx => $fileTmpName) {
						if( !$fileTmpName )
							continue;
						$fileName = $_FILES[$fieldName]["name"][$fileIdx];
						$tmpCopyName = $attachmentsDir . DIRECTORY_SEPARATOR . basename($fileTmpName);
						if( !move_uploaded_file($fileTmpName, $tmpCopyName) ) {
							foreach( $movedFiles as $tmpCopyName )
								unlink($tmpCopyName);
							error_log('[Form error]: Failed to move uploaded file to attachments directory');
							throw new ErrorException($wb_form_sending_failed.' (3): '.SiteModule::__('Failed to move uploaded file to attachments directory'));
						}
						$movedFiles[] = $tmpCopyName;
						$secureFileName = $fileName;
						$secureFileName = preg_replace("#[\\\\/<>\\?;:,=]+#isu", "_", $secureFileName);
						$secureFileName = preg_replace("#\\.\\.+#isu", ".", $secureFileName);
						$mailer->addAttachment($tmpCopyName, $secureFileName, "base64");
					}
				}
			}

if (isset($form['smtpEnable']) && $form['smtpEnable'] && isset($form['smtpHost']) && $form['smtpHost']) {
				/* $mailer->Debugoutput = function($string) {
					file_put_contents(__DIR__.'/smtp-debug.log', $string."\n", FILE_APPEND);
				};
				$mailer->SMTPDebug = 4; */
				$mailer->isSMTP();
				$mailer->Host = ((isset($form['smtpHost']) && $form['smtpHost']) ? $form['smtpHost'] : 'localhost');
				$mailer->Port = ((isset($form['smtpPort']) && intval($form['smtpPort'])) ? intval($form['smtpPort']) : 25);
				$mailer->SMTPSecure = ((isset($form['smtpEncryption']) && $form['smtpEncryption']) ? $form['smtpEncryption'] : '');
				$mailer->SMTPAutoTLS = false;
				if (isset($form['smtpUsername']) && $form['smtpUsername'] && isset($form['smtpPassword']) && $form['smtpPassword']) {
					$mailer->SMTPAuth = true;
					$mailer->Username = ((isset($form['smtpUsername']) && $form['smtpUsername']) ? $form['smtpUsername'] : '');
					$mailer->Password = ((isset($form['smtpPassword']) && $form['smtpPassword']) ? $form['smtpPassword'] : '');
				}
				$mailer->SMTPOptions = array('ssl' => array(
					'verify_peer' => false,
					'verify_peer_name' => false,
					'allow_self_signed' => true
				));
			}

$style = "* { font: 12px Arial; }\nstrong { font-weight: bold; }";
			
			$toHasGmail = false;
			foreach ($mail_to as $eml) {
				if (strpos($eml, 'gmail.com') !== false) $toHasGmail = true;
				$mailer->AddAddress($eml);
			}

$sender_email = (isset($form['emailFrom']) && $form['emailFrom']) ? trim($form['emailFrom']) : ('no-reply@'.$siteInfo->domain);
			$sender_name = $mail_from_name;
			if (preg_match('#^([^<]+|)<([^>]+)>$#', $sender_email, $m)) {
				if (trim($m[1])) $sender_name = trim($m[1]);
				$sender_email = trim($m[2]);
			} else if (preg_match('#^<([^>]+)>(.+|)$#', $sender_email, $m)) {
				if (trim($m[2])) $sender_name = trim($m[2]);
				$sender_email = trim($m[1]);
			}
			$mailer->SetFrom($sender_email, ($sender_name ?: ''));
			if (strpos($mail_from, 'gmail.com') === false || !$toHasGmail) {
				// do not add "Reply-To" header if both Receiver and ReplyTo are Gmail
				// form sending fails in such case.
				$mailer->addReplyTo($mail_from, $mail_from_name ? $mail_from_name : '');
			}

$mailer->CharSet = 'utf-8';
			$message = '';
			if (isset($form['object']) && $form['object']) {
				if (isset($form['objectRenderer']) && $form['objectRenderer'] && is_callable($form['objectRenderer'])) {
					$objectStr = call_user_func((strpos($form['objectRenderer'], '::') ? explode('::', $form['objectRenderer']) : $form['objectRenderer']), $form, $data);
				} else {
					$objectStr = '<p><strong>'.htmlspecialchars($form['object']).'</strong></p>';
				}
				if ($objectStr) $message .= $objectStr;
			}
			$message .= '<table cellspacing="0" cellpadding="5">';
			foreach ($fields as $idx => $field) {
				if ($field["type"] === "file")
					continue;
				$name = tr_($field["name"]);
				$value = $data[$idx];
				$escapeName = function($name) {
					return trim(strip_tags($name));
				};
				$escapeVal = function($value) {
					if (is_array($value)) $value = implode(PHP_EOL, $value);
					return trim(nl2br($value));
				};
				$td = function($content) {
					return '<td style="vertical-align: top;">'.$content.'</td>';
				};
				$message .= "<tr>".$td("<strong>{$escapeName($name)}: </strong>");
				if ($field["type"] == "textarea")
					$message .= $td('<div style="max-width: 400px;">'.$escapeVal($value).'</div>')."</tr>\n";
				else if ($field["type"] == "checkbox") {
					if( is_array($value) ) {
						$message .= $td($escapeVal($value))."</tr>\n";
					} else {
						$message .= $td($value ? tr_('Yes') : tr_('No'))."</tr>\n";
					}
				}
				else if ($field["type"] == "range") {
					$message .= $td($escapeVal($value["from"]) . ' - ' . $escapeVal($value["to"]))."</tr>\n";
				}
				else
					$message .= $td($escapeVal($value))."</tr>\n";
				$message .= "</tr>\n";
			}
			$message .= '</table>';
			// echo $message; exit;

$html =
	'<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
	<html>
		<head>
			<title>' . $form["subject"] . '</title>
			<meta http-equiv=Content-Type content="text/html; charset=utf-8">
			' . ($style?"<style></style>\n\t\t":"") . '</head>
		<body>' . $message . '</body>
	</html>';
			$mailer->MsgHTML($html);
			$mailer->AltBody = preg_replace('/[\r\n]{3,9}/', "\n\n", str_replace('&nbsp;', '', strip_tags(str_replace("</tr>", "</tr>\n", $message))));
			$mailer->Subject = $form["subject"];
			ob_start();
			$res = $mailer->Send();
			$wb_form_send_success = $res;
			ob_get_clean();
			if ($res) {
				$wb_form_send_state = empty($form['sentMessage']) ? '' : tr_($form['sentMessage']);
			} else {
				if ($mailer->ErrorInfo) error_log('[Form sending error]: '.$mailer->ErrorInfo);
				throw new ErrorException($wb_form_sending_failed.' (4): '.$mailer->ErrorInfo);
			}
			if (isset($form['loggingHandler']) && $form['loggingHandler'] && is_callable($form['loggingHandler'])) {
				call_user_func((strpos($form['loggingHandler'], '::') ? explode('::', $form['loggingHandler']) : $form['loggingHandler']), $form, $data, $res);
			}
			foreach( $movedFiles as $tmpCopyName )
				unlink($tmpCopyName);
		}
	} catch (ErrorException $ex) {
		if (!$wb_form_send_state) {
			$wb_form_send_state = $ex->getMessage();
			$formErrors->any = true; // set values to fields back in case of error
		}
		$wb_form_send_success = false;
	}
	
	if (session_id()) {
		$_SESSION['post'] = $post;
		$_SESSION['formErrors'] = $formErrors;
		$_SESSION['wb_form_id'] = $wb_form_id;
		$_SESSION['wb_form_send_success'] = $wb_form_send_success;
		$_SESSION['wb_form_popup_mode'] = $wb_form_popup_mode;
		$_SESSION['wb_target_origin'] = $wb_target_origin;
		$_SESSION['wb_form_send_state'] = $wb_form_send_state;
		if ($wb_form_send_success) {
			if ( isset($form['redirectUrl']) && !is_null($form['redirectUrl'])) {
				$redirectUrl = tr_($form['redirectUrl']);
				if ($redirectUrl == '{{base_url}}') {
					$url = getBaseUrl();
				} else if (is_string($redirectUrl) && preg_match('#^https?://#i', $redirectUrl)) {
					$url = $redirectUrl;
				} elseif (is_string($redirectUrl) && preg_match('#^wb_popup:#i', $redirectUrl)) {
					$parseUrl = parse_url(getCurrUrl());
					$parseUrl['query'] = (isset($parseUrl['query']) ? $parseUrl['query'] : '') . '&wbPopupOpen=' . urlencode($redirectUrl);
					$parseUrl['query'] = ltrim($parseUrl['query'], '&');
					$url = unparse_url($parseUrl);
//					$url .= '?wbPopupOpen=' . urlencode($redirectUrl);
					$popupQuery = 'wbPopupOpen=' . urlencode($redirectUrl);
				} else {
					$url = getBaseUrl() . $redirectUrl;
				}
				if (isset($_GET['wbPopupMode']) && (int)$_GET['wbPopupMode'] == 1) {
					if (isset($popupQuery)) {
						// @note: when we have popup with form and redirecting to another popup then need set "wbPopupOpen" for parent location
						// else we redirecting to popup page without popup
						echo '<script> window.parent.location.search = (window.parent.location.search.length ? (window.parent.location.search + "&") : "?") + ' . json_encode($popupQuery) . '; </script>';
					} else {
						echo '<script> window.parent.location.href = ' . json_encode($url) . '; </script>';
					}
					exit();
				} else {
					header('Location: ' . $url);
				}
			} else if (isset($_GET['wbPopupMode']) && (int)$_GET['wbPopupMode'] == 1) {
				echo '<script> window.parent.location.reload(); </script>';
				exit();
			} else {
				header('Location: '.getCurrUrl());
			}
		} else {
			header('Location: '.getCurrUrl());
		}
		exit();
	}
}

/**
 * Load PHPMailer library.
 * @param bool $noErrorException
 * @return bool true if PHPMailer loaded successfully, and false if not.
 * @throws ErrorException
 */
function requirePHPMailer($noErrorException = false) {
	if (version_compare(phpversion(), '5.5') < 0) {
		if (!$noErrorException) throw new ErrorException('Your PHP version is outdated for sending mails. Please update PHP version to 5.6 or higher.');
		return false;
	}
	if (!class_exists('\PHPMailer\PHPMailer\PHPMailer')) {
		require_once dirname(__FILE__).'/phpmailer/Exception.php';
		require_once dirname(__FILE__).'/phpmailer/OAuth.php';
		require_once dirname(__FILE__).'/phpmailer/PHPMailer.php';
		require_once dirname(__FILE__).'/phpmailer/POP3.php';
		require_once dirname(__FILE__).'/phpmailer/SMTP.php';

// in PHP 7.4 validation of cyrilic email address does not work
		// due to unknown reason. So we just ignore PHPMailer validation.
		if (version_compare(phpversion(), '7.4') >= 0) {
			\PHPMailer\PHPMailer\PHPMailer::$validator = function($address) { return true; };
		}
	}
	return true;
}

function is_mail($mail) {
	if (preg_match("/^[0-9a-zA-ZА-Яа-я\.\-\_\w]+\@[0-9a-zA-ZА-Яа-я\.\-\_\w]+\.[0-9a-zA-ZА-Яа-я\.\-\_\w]+$/isu", trim($mail)))
		return trim($mail);
	return "";
}

function mini_text($text) {
	return trim(substr(strip_tags($text), 0, 100), " \n\r\t\0\x0B.").'...';
}

$uinf = parse_url($url);
	$host = $uinf['host'];
	$path = $uinf['path'];
	$path .= (isset($uinf['query']) && $uinf['query']) ? ('?'.$uinf['query']) : '';
	$headers = array(
		($post_contents ? 'POST' : 'GET')." $path HTTP/1.1",
		"Host: $host",
	);
	if ($post_contents) {
		$headers[] = 'Content-Type: application/x-www-form-urlencoded';
		$headers[] = 'Content-Length: '.strlen($post_contents);
	}

$ch = curl_init();
	curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);
	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0);
	curl_setopt($ch, CURLOPT_URL,$url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_TIMEOUT, 600);
	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

if ($post_contents) {
		curl_setopt($ch, CURLOPT_POST, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $post_contents);
	}

$data = curl_exec($ch);
	if (curl_errno($ch)) {
		return false;
	}
	curl_close($ch);

return $data;
}

function unparse_url($parsed_url) {
	$scheme   = isset($parsed_url['scheme']) ? $parsed_url['scheme'] . '://' : '';
	$host     = isset($parsed_url['host']) ? $parsed_url['host'] : '';
	$port     = isset($parsed_url['port']) ? ':' . $parsed_url['port'] : '';
	$user     = isset($parsed_url['user']) ? $parsed_url['user'] : '';
	$pass     = isset($parsed_url['pass']) ? ':' . $parsed_url['pass']  : '';
	$pass     = ($user || $pass) ? "$pass@" : '';
	$path     = isset($parsed_url['path']) ? $parsed_url['path'] : '';
	$query    = isset($parsed_url['query']) ? '?' . $parsed_url['query'] : '';
	$fragment = isset($parsed_url['fragment']) ? '#' . $parsed_url['fragment'] : '';
	return "$scheme$user$pass$host$port$path$query$fragment";

}

function simplifyText($text) {
	$mb = function_exists('mb_strtolower');
	$textLen = ($mb ? mb_strlen($text) : strlen($text));
	$textLow = ($mb ? mb_strtolower($text) : strtolower($text));
//		$res = @iconv('utf-8', 'cp1252//TRANSLIT//IGNORE', $textLow);
	$res = translitToLatin($textLow);
	$resLen = ($mb ? mb_strlen($res) : strlen($res));
	return ($resLen/2 < $textLen) ? $textLow : $res;
}

/**
 * Transliterate text to latin.
 * @param string $text text to transliterate.
 * @return string
 */
function translitToLatin($text) {
	// transliterate cyrillic chars
	$cyrillic = array('а','б','в','г','д','е', 'ё', 'ж','з','и','й','к','л','м','н','о','п','р','с','т','у','ф','х','ц', 'ч', 'ш',   'щ','ъ','ы','ь', 'э', 'ю', 'я','А','Б','В','Г','Д','Е', 'Ё', 'Ж','З','И','Й','К','Л','М','Н','О','П','Р','С','Т','У','Ф','Х','Ц', 'Ч', 'Ш',   'Щ','Ъ','Ы','Ь', 'Э', 'Ю', 'Я');
	$latinCr =  array('a','b','v','g','d','e','yo','zh','z','i','j','k','l','m','n','o','p','r','s','t','u','f','h','c','ch','sh','shch', '','y', '','eh','yu','ya','A','B','V','G','D','E','Yo','Zh','Z','I','J','K','L','M','N','O','P','R','S','T','U','F','H','C','Ch','Sh','Shch', '','Y', '','Eh','Yu','Ya');
	$textNoCr = str_replace($cyrillic, $latinCr, $text);
	// transliterate lithuanian chars
	$lithuanian = array('ą','Ą','č','Č','ę','Ę','ė','Ė','į','Į','š','Š','ų','Ų','ū','Ū','ž','Ž');
	$latinLt =    array('a','A','c','C','e','E','e','E','i','I','s','S','u','U','u','U','z','Z');
	$textNoLt = str_replace($lithuanian, $latinLt, $textNoCr);
	$accents = array(
		'à' => 'a', 'ô' => 'o', 'ď' => 'd', 'ë' => 'e', 'ơ' => 'o',
		'ß' => 'ss', 'ă' => 'a', 'ř' => 'r', 'ț' => 't', 'ň' => 'n', 'ā' => 'a', 'ķ' => 'k',
		'ŝ' => 's', 'ỳ' => 'y', 'ņ' => 'n', 'ĺ' => 'l', 'ħ' => 'h', 'ó' => 'o',
		'ú' => 'u', 'ě' => 'e', 'é' => 'e', 'ç' => 'c', 'ẁ' => 'w', 'ċ' => 'c', 'õ' => 'o',
		'ø' => 'o', 'ģ' => 'g', 'ŧ' => 't', 'ș' => 's', 'ĉ' => 'c',
		'ś' => 's', 'î' => 'i', 'ű' => 'u', 'ć' => 'c', 'ŵ' => 'w',
		'ö' => 'oe', 'è' => 'e', 'ŷ' => 'y', 'ł' => 'l',
		'ů' => 'u', 'ş' => 's', 'ğ' => 'g', 'ļ' => 'l', 'ƒ' => 'f',
		'ẃ' => 'w', 'å' => 'a', 'ì' => 'i', 'ï' => 'i', 'ť' => 't',
		'ŗ' => 'r', 'ä' => 'ae', 'í' => 'i', 'ŕ' => 'r', 'ê' => 'e', 'ü' => 'ue', 'ò' => 'o',
		'ē' => 'e', 'ñ' => 'n', 'ń' => 'n', 'ĥ' => 'h', 'ĝ' => 'g', 'đ' => 'd', 'ĵ' => 'j',
		'ÿ' => 'y', 'ũ' => 'u', 'ŭ' => 'u', 'ư' => 'u', 'ţ' => 't', 'ý' => 'y', 'ő' => 'o',
		'â' => 'a', 'ľ' => 'l', 'ẅ' => 'w', 'ż' => 'z', 'ī' => 'i', 'ã' => 'a', 'ġ' => 'g',
		'ō' => 'o', 'ĩ' => 'i', 'ù' => 'u', 'ź' => 'z', 'á' => 'a',
		'û' => 'u', 'þ' => 'th', 'ð' => 'dh', 'æ' => 'ae', 'µ' => 'u', 'ĕ' => 'e',

'Ә' => 'A','ә' => 'a', 'Ғ' => 'G','ғ' => 'g', 'Қ' => 'K','қ' => 'k',
		'Ң' => 'N','ң' => 'n', 'Ө' => 'O','ө' => 'o', 'Ұ' => 'U','ұ' => 'u',
		'Ү' => 'U','ү' => 'u', 'І' => 'Y','і' => 'y', 'Һ' => 'H','һ' => 'h',

'À' => 'a', 'Ô' => 'o', 'Ď' => 'd', 'Ë' => 'e', 'Ơ' => 'o',
		'ß' => 'ss','Ă' => 'a', 'Ř' => 'r', 'Ț' => 't', 'Ň' => 'n', 'Ā' => 'a', 'Ķ' => 'k',
		'Ŝ' => 's', 'Ỳ' => 'y', 'Ņ' => 'n', 'Ĺ' => 'l', 'Ħ' => 'h', 'Ó' => 'o',
		'Ú' => 'u', 'Ě' => 'e', 'É' => 'e', 'Ç' => 'c', 'Ẁ' => 'w', 'Ċ' => 'c', 'Õ' => 'o',
		'Ø' => 'o', 'Ģ' => 'g', 'Ŧ' => 't', 'Ș' => 's', 'Ĉ' => 'c',
		'Ś' => 's', 'Î' => 'i', 'Ű' => 'u', 'Ć' => 'c', 'Ŵ' => 'w',
		'Ö' => 'oe', 'Ŷ' => 'y', 'Ł' => 'l',
		'Ů' => 'u', 'Ş' => 's', 'Ğ' => 'g', 'Ļ' => 'l', 'Ƒ' => 'f',
		'Ẃ' => 'w', 'Å' => 'a', 'Ì' => 'i', 'Ï' => 'i', 'Ť' => 't',
		'Ŗ' => 'r', 'Ä' => 'ae','Í' => 'i', 'Ŕ' => 'r', 'Ê' => 'e', 'Ü' => 'ue', 'Ò' => 'o',
		'Ē' => 'e', 'Ñ' => 'n', 'Ń' => 'n', 'Ĥ' => 'h', 'Ĝ' => 'g', 'Đ' => 'd', 'Ĵ' => 'j',
		'Ÿ' => 'y', 'Ũ' => 'u', 'Ŭ' => 'u', 'Ư' => 'u', 'Ţ' => 't', 'Ý' => 'y', 'Ő' => 'o',
		'Â' => 'a', 'Ľ' => 'l', 'Ẅ' => 'w', 'Ż' => 'z', 'Ī' => 'i', 'Ã' => 'a', 'Ġ' => 'g',
		'Ō' => 'o', 'Ĩ' => 'i', 'Ù' => 'u', 'Ź' => 'z', 'Á' => 'a',
		'Û' => 'u', 'Þ' => 'th','Ð' => 'dh', 'Æ' => 'ae',			 'Ĕ' => 'e'
	);
	$textLatinN = str_replace(array_keys($accents), array_values($accents), $textNoLt);
	// transliterate other language chars
	$textLatin = function_exists("iconv") ? @iconv('UTF-8', 'ISO-8859-1//TRANSLIT//IGNORE', $textLatinN) : $textLatinN;
	return $textLatin;
}

function checkSiteRedirects(SiteInfo $siteInfo, SiteRequestInfo $requestInfo, array $redirectItems) {
	if (!count($redirectItems)) {
		return;
	}

$requestUri = trim($requestInfo->requestUri, '/');
	$requestQuery = array();
	if (count($_GET)) {
		foreach ($_GET as $key => $val) {
			$requestQuery[] = $key . '=' . $val;
		}
	}

$defLang = ($siteInfo->defLang ? $siteInfo->defLang : null);

$redirectTo = null;
	foreach ($redirectItems as $item) {
		$item = (array)$item;
		$from = trim(str_replace(['"', "'"], '', $item['fromUrl']), '/');
		$from = explode('?', $from);

$url = parse_url($from[0]);
		if (!isset($url['path'])) {
			continue;
		}

$fromUrl = trim($url['path'], '/');

$fromQuery = isset($from[1]) ? explode('&', $from[1]) : array();
		$commonQuery = array_intersect($requestQuery, $fromQuery);

$toUrl = (array)$item['toUrl'];

if (!$item['enabled']) {
			continue;
		}

$isRequestRedirect = ($item['exact'] && $fromUrl == $requestUri) || 
			(!$item['exact'] && strpos($requestUri . '/', $fromUrl . '/' ) === 0) || 
			($requestUri == '' && $requestUri == $fromUrl) || (!$item['exact'] && $fromUrl === '');

$isQueryRedirect = (!count($fromQuery) && !count($requestQuery)) ||
			($item['exact'] && count($fromQuery) && count($commonQuery) === count($fromQuery) && count($commonQuery) === count($requestQuery)) || 
			(!$item['exact'] && count($requestQuery) && count($commonQuery) >= count($fromQuery));

if ($isRequestRedirect && $isQueryRedirect) {
			if ($toUrl['type'] == 'page') {
				if ($item['exact'] || $requestUri == '') {
					$redirectTo = getBaseUrl() . getPageUri($toUrl['url'], $defLang, $siteInfo) . (isset($toUrl['anchor']) ? '#' . $toUrl['anchor'] : '');
				}
				else {
					$toUrl = getPageUri($toUrl['url'], $defLang, $siteInfo);
					if ($fromUrl !== '') {
						$redirectTo = getBaseUrl() . str_replace($fromUrl . '/', $toUrl, $requestUri . '/') . (isset($toUrl['anchor']) ? '#' . $toUrl['anchor'] : '');
					}
					else {
						$redirectTo = getBaseUrl() . $toUrl . (isset($toUrl['anchor']) ? '#' . $toUrl['anchor'] : '');
					}
				}
				if ($redirectTo !== null && !$item['exact'] && count($requestQuery)) {
					$redirectQuery = array_diff($requestQuery, $fromQuery);
					if (count($redirectQuery)) {
						$redirectTo .= '?' . implode('&', $redirectQuery);
					}
				}
			}
			elseif ($toUrl['type'] == 'url') {
				$redirectTo = $toUrl['url'];
			}
			elseif ($toUrl['type'] == 'file') {
				$scheme = parse_url($toUrl['url'], PHP_URL_SCHEME);
				$redirectTo = $scheme ? $toUrl['url'] : getBaseUrl() . $toUrl['url'];
			}
			break;
		}
	}

if ($redirectTo !== null && trim(getBaseUrl() . $requestUri, '/') . ($_SERVER['QUERY_STRING'] ? '/?' . $_SERVER['QUERY_STRING'] : '')  !== trim($redirectTo, '/')) {
		header('Location: '. $redirectTo, true, 301);
		exit();
	}
}

function isSitemapUrl(SiteRequestInfo $requestInfo)
{
	return  in_array(trim($requestInfo->requestUri, '/'), array('sitemap.xml', 'sitemap-alt.xml'));
}

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