Merge branch 'stable-3.1' into 'stable-3.1'

add new Certbot Directory - https://github.com/certbot/certbot/blob/master/CHANGELOG.md

See merge request !641

server/lib/classes/cron.d/900-letsencrypt.inc.php

@@ -52,7 +52,7 @@ class cronjob_letsencrypt extends cronjob {
 		
 		$server_config = $app->getconf->get_server_config($conf['server_id'], 'server');
 		if(!isset($server_config['migration_mode']) || $server_config['migration_mode'] != 'y') {
-			$letsencrypt = explode("\n", shell_exec('which letsencrypt certbot /root/.local/share/letsencrypt/bin/letsencrypt'));
+			$letsencrypt = explode("\n", shell_exec('which letsencrypt certbot /root/.local/share/letsencrypt/bin/letsencrypt /opt/eff.org/certbot/venv/bin/certbot'));
 			$letsencrypt = reset($letsencrypt);
 			if(is_executable($letsencrypt)) {
 				$version = exec($letsencrypt . ' --version  2>&1', $ret, $val);

server/lib/classes/letsencrypt.inc.php

@@ -266,7 +266,7 @@ class letsencrypt {
 				$app->log("Create Let's Encrypt SSL Cert for: $domain", LOGLEVEL_DEBUG);
 				$app->log("Let's Encrypt SSL Cert domains: $cli_domain_arg", LOGLEVEL_DEBUG);
 			
-				$letsencrypt = explode("\n", shell_exec('which letsencrypt certbot /root/.local/share/letsencrypt/bin/letsencrypt'));
+				$letsencrypt = explode("\n", shell_exec('which letsencrypt certbot /root/.local/share/letsencrypt/bin/letsencrypt /opt/eff.org/certbot/venv/bin/certbot'));
 				$letsencrypt = reset($letsencrypt);
 				if(is_executable($letsencrypt)) {
 					$letsencrypt_cmd = $letsencrypt . " certonly -n --text --agree-tos --expand --authenticator webroot --server https://acme-v01.api.letsencrypt.org/directory --rsa-key-size 4096 --email postmaster@$domain $cli_domain_arg --webroot-path /usr/local/ispconfig/interface/acme";