Compatibility with Elasticsearch 7.14

- Removed empty body from requests.
- Hide indices reserved for system operations.

adminer/drivers/elastic7.inc.php

@@ -16,7 +16,7 @@ class Min_DB {
 			 * @param string
 			 * @return mixed
 			 */
-			function rootQuery($path, $content = array(), $method = 'GET') {
+			function rootQuery($path, $content = null, $method = 'GET') {
 				@ini_set('track_errors', 1); // @ - may be disabled
 
 				$file = @file_get_contents("$this->_url/" . ltrim($path, '/'), false, stream_context_create(
@@ -69,7 +69,7 @@ function rootQuery($path, $content = array(), $method = 'GET') {
 			 * @param string
 			 * @return mixed
 			 */
-			function query($path, $content = array(), $method = 'GET') {
+			function query($path, $content = null, $method = 'GET') {
 				// Support for global search through all tables
 				if ($path[0] == "S" && preg_match('/SELECT 1 FROM ([^ ]+) WHERE (.+) LIMIT ([0-9]+)/', $path, $matches)) {
 					global $driver;
@@ -385,6 +385,10 @@ function table_status($name = "", $fast = false) {
 
 		ksort($stats["indices"]);
 		foreach ($stats["indices"] as $name => $index) {
+			if ($name[0] == ".") {
+				continue;
+			}
+
 			$result[$name] = format_index_status($name, $index);
 
 			if (!empty($aliases[$name]["aliases"])) {
@@ -539,7 +543,7 @@ function create_database($db) {
 	function drop_databases($databases) {
 		global $connection;
 
-		return $connection->rootQuery(urlencode(implode(',', $databases)), array(), 'DELETE');
+		return $connection->rootQuery(urlencode(implode(',', $databases)), null, 'DELETE');
 	}
 
 	/** Alter type
@@ -574,7 +578,7 @@ function drop_tables($tables) {
 
 		$return = true;
 		foreach ($tables as $table) { //! convert to bulk api
-			$return = $return && $connection->query(urlencode($table), array(), 'DELETE');
+			$return = $return && $connection->query(urlencode($table), null, 'DELETE');
 		}
 
 		return $return;