Merge branch '6419-isset' into 'develop'

PHP 8 strict fixes, #6419

Closes #6419

See merge request ispconfig/ispconfig3!1670

Author: Till Brehm

server/lib/classes/letsencrypt.inc.php

@@ -304,6 +304,7 @@ public function get_website_certificate_paths($data) {
 				'domain' => $domain,
 				'key' => $ssl_dir.'/'.$domain.'-le.key',
 				'key2' => $ssl_dir.'/'.$domain.'-le.key.org',
+				'csr' => '', # Not used for LE.
 				'crt' => $ssl_dir.'/'.$domain.'-le.crt',
 				'bundle' => $ssl_dir.'/'.$domain.'-le.bundle'
 			);

server/plugins-available/apache2_plugin.inc.php

@@ -266,7 +266,7 @@ function ssl($event_name, $data) {
 		// load the server configuration options
 		$app->uses('getconf');
 		$web_config = $app->getconf->get_server_config($conf['server_id'], 'web');
-		if ($web_config['CA_path']!='' && !file_exists($web_config['CA_path'].'/openssl.cnf'))
+		if (isset($web_config['CA_path']) && $web_config['CA_path'] !='' && !file_exists($web_config['CA_path'].'/openssl.cnf'))
 			$app->log("CA path error, file does not exist:".$web_config['CA_path'].'/openssl.cnf', LOGLEVEL_ERROR);
 
 		//* Only vhosts can have a ssl cert
@@ -1169,7 +1169,7 @@ function update($event_name, $data) {
 		if(!is_dir($web_config['website_basedir'].'/conf')) $app->system->mkdir($web_config['website_basedir'].'/conf');
 
 		//* add open_basedir restriction to custom php.ini content, required for suphp only
-		if(!stristr($data['new']['custom_php_ini'], 'open_basedir') && $data['new']['php'] == 'suphp') {
+		if(isset($data['new']['custom_php_ini']) && !stristr($data['new']['custom_php_ini'], 'open_basedir') && $data['new']['php'] == 'suphp') {
 			$data['new']['custom_php_ini'] .= "\nopen_basedir = '".$data['new']['php_open_basedir']."'\n";
 		}
 
@@ -1194,7 +1194,7 @@ function update($event_name, $data) {
 		//* Create custom php.ini
 		# Because of custom default PHP directives from snippet
 		# php.ini custom values order os: 1. general settings 2. Directive Snippets settings 3. custom php.ini settings defined in domain settings
-		if(trim($data['new']['custom_php_ini']) != '' || $data['new']['directive_snippets_id'] > "0") {
+		if((isset($data['new']['custom_php_ini']) && trim($data['new']['custom_php_ini']) != '') || $data['new']['directive_snippets_id'] > "0") {
 			$has_custom_php_ini = true;
 			$custom_sendmail_path = false;
 			if(!is_dir($custom_php_ini_dir)) $app->system->mkdirpath($custom_php_ini_dir);
@@ -1400,14 +1400,12 @@ function update($event_name, $data) {
 
 		$server_alias = array();
 
-		// get autoalias
-		$auto_alias = $web_config['website_autoalias'];
-		if($auto_alias != '') {
+		if(isset($web_config['website_autoalias']) && $web_config['website_autoalias'] != '') {
 			// get the client username
 			$client = $app->db->queryOneRecord("SELECT `username` FROM `client` WHERE `client_id` = ?", $client_id);
 			$aa_search = array('[client_id]', '[website_id]', '[client_username]', '[website_domain]');
 			$aa_replace = array($client_id, $data['new']['domain_id'], $client['username'], $data['new']['domain']);
-			$auto_alias = str_replace($aa_search, $aa_replace, $auto_alias);
+			$auto_alias = str_replace($aa_search, $aa_replace, $web_config['website_autoalias']);
 			unset($client);
 			unset($aa_search);
 			unset($aa_replace);
@@ -1793,7 +1791,7 @@ function update($event_name, $data) {
 
 		//if proxy protocol is enabled we need to add a new port to lsiten to
 		if($web_config['vhost_proxy_protocol_enabled'] == 'y' && $data['new']['proxy_protocol'] == 'y'){
-			if((int)$web_config['vhost_proxy_protocol_http_port'] > 0) {
+			if(isset($web_config['vhost_proxy_protocol_http_port']) && (int)$web_config['vhost_proxy_protocol_http_port'] > 0) {
 				$tmp_vhost_arr['port']           = (int)$web_config['vhost_proxy_protocol_http_port'];
 				$tmp_vhost_arr['use_proxy_protocol'] = $data['new']['proxy_protocol'];
 				$vhosts[]                        = $tmp_vhost_arr;
@@ -1942,7 +1940,7 @@ function update($event_name, $data) {
 			unset($ht_file);
 
 			if(!is_file($data['new']['document_root'].'/web/stats/.htpasswd_stats') || $data['new']['stats_password'] != $data['old']['stats_password']) {
-				if(trim($data['new']['stats_password']) != '') {
+				if(isset($data['new']['stats_password']) && trim($data['new']['stats_password']) != '') {
 					$htp_file = 'admin:'.trim($data['new']['stats_password']);
 					$app->system->web_folder_protection($data['new']['document_root'], false);
 					$app->system->file_put_contents($data['new']['document_root'].'/web/stats/.htpasswd_stats', $htp_file);