Merge branch 'elastic'

adminer/db.inc.php

@@ -61,7 +61,7 @@ if ($adminer->homepage()) {
 				echo " <input type='submit' name='search' value='" . lang('Search') . "'>\n";
 				echo "</div></fieldset>\n";
 				if ($_POST["search"] && $_POST["query"] != "") {
-					$_GET["where"][0]["op"] = "LIKE %%";
+					$_GET["where"][0]["op"] = $driver->convertOperator("LIKE %%");
 					search_tables();
 				}
 			}

adminer/elastic.php

@@ -0,0 +1,13 @@
+<?php
+function adminer_object() {
+	include_once "../plugins/plugin.php";
+	include_once "../plugins/login-password-less.php";
+	include_once "../plugins/drivers/elastic.php";
+	include_once "../plugins/drivers/elastic5.php";
+	return new AdminerPlugin([
+		// TODO: inline the result of password_hash() so that the password is not visible in source codes
+		new AdminerLoginPasswordLess(password_hash("YOUR_PASSWORD_HERE", PASSWORD_DEFAULT)),
+	]);
+}
+
+include "./index.php";

adminer/include/bootstrap.inc.php

@@ -81,7 +81,6 @@ include "../adminer/drivers/pgsql.inc.php";
 include "../adminer/drivers/oracle.inc.php";
 include "../adminer/drivers/mssql.inc.php";
 include "../adminer/drivers/mongo.inc.php";
-include "../adminer/drivers/elastic.inc.php";
 include "./include/adminer.inc.php";
 $adminer = (function_exists('adminer_object') ? adminer_object() : new Adminer);
 include "../adminer/drivers/mysql.inc.php"; // must be included as last driver

adminer/include/driver.inc.php

@@ -142,6 +142,14 @@ function add_driver($id, $name) {
 		return $idf;
 	}
 
+	/** Convert operator so it can be used in search
+	 * @param string $operator
+	 * @return string
+	 */
+	function convertOperator($operator) {
+		return $operator;
+	}
+
 	/** Convert value returned by database to actual value
 	* @param string
 	* @param array

changes.txt

@@ -3,6 +3,8 @@ Adminer 4.9.0-dev:
 - Validate connection to server in HTTP based drivers.
 - Move dependencies from submodules to Composer.
 - Update hydra and pepa-lintha-dark themes.
+- Elasticsearch 5: Make unusable driver usable again, move it to plugins.
+- Add new Elasticsearch 7 driver.
 
 Adminer 4.8.2 (released 2024-03-16):
 Support multi-line table comments

plugins/drivers/elastic.php

@@ -0,0 +1,591 @@
+<?php
+add_driver("elastic", "Elasticsearch 7 (beta)");
+
+if (isset($_GET["elastic"])) {
+	define("DRIVER", "elastic");
+
+	if (ini_bool('allow_url_fopen')) {
+		define("ELASTIC_DB_NAME", "elastic");
+
+		class Min_DB {
+			var $extension = "JSON", $server_info, $errno, $error, $_url;
+
+			/**
+			 * @param string $path
+			 * @param array|null $content
+			 * @param string $method
+			 * @return array|false
+			 */
+			function rootQuery($path, array $content = null, $method = 'GET') {
+				@ini_set('track_errors', 1); // @ - may be disabled
+
+				$file = @file_get_contents("$this->_url/" . ltrim($path, '/'), false, stream_context_create(array('http' => array(
+					'method' => $method,
+					'content' => $content !== null ? json_encode($content) : null,
+					'header' => $content !== null ? 'Content-Type: application/json' : [],
+					'ignore_errors' => 1,
+					'follow_location' => 0,
+					'max_redirects' => 0,
+				))));
+
+				if ($file === false) {
+					$this->error = lang('Invalid server or credentials.');
+					return false;
+				}
+
+				$return = json_decode($file, true);
+				if ($return === null) {
+					$this->error = lang('Invalid server or credentials.');
+					return false;
+				}
+
+				if (!preg_match('~^HTTP/[0-9.]+ 2~i', $http_response_header[0])) {
+					if (isset($return['error']['root_cause'][0]['type'])) {
+						$this->error = $return['error']['root_cause'][0]['type'] . ": " . $return['error']['root_cause'][0]['reason'];
+					} elseif (isset($return['status']) && isset($return['error']) && is_string($return['error'])) {
+						$this->error = $return['error'];
+					}
+
+					return false;
+				}
+
+				return $return;
+			}
+
+			/** Performs query relative to actual selected DB
+			 * @param string $path
+			 * @param array|null $content
+			 * @param string $method
+			 * @return array|false
+			 */
+			function query($path, array $content = null, $method = 'GET') {
+				// Support for global search through all tables
+				if ($path != "" && $path[0] == "S" && preg_match('/SELECT 1 FROM ([^ ]+) WHERE (.+) LIMIT ([0-9]+)/', $path, $matches)) {
+					global $driver;
+
+					$where = explode(" AND ", $matches[2]);
+
+					return $driver->select($matches[1], array("*"), $where, null, array(), $matches[3]);
+				}
+
+				return $this->rootQuery($path, $content, $method);
+			}
+
+			/**
+			 * @param string $server
+			 * @param string $username
+			 * @param string $password
+			 * @return bool
+			 */
+			function connect($server, $username, $password) {
+				$this->_url = build_http_url($server, $username, $password, "localhost", 9200);
+
+				$return = $this->query('');
+				if (!$return) {
+					return false;
+				}
+
+				if (!isset($return['version']['number'])) {
+					$this->error = lang('Invalid server or credentials.');
+					return false;
+				}
+
+				$this->server_info = $return['version']['number'];
+				return true;
+			}
+
+			function select_db($database) {
+				return true;
+			}
+
+			function quote($string) {
+				return $string;
+			}
+		}
+
+		class Min_Result {
+			var $num_rows, $_rows;
+
+			function __construct($rows) {
+				$this->num_rows = count($rows);
+				$this->_rows = $rows;
+
+				reset($this->_rows);
+			}
+
+			function fetch_assoc() {
+				$return = current($this->_rows);
+				next($this->_rows);
+
+				return $return;
+			}
+
+			function fetch_row() {
+				$row = $this->fetch_assoc();
+
+				return $row ? array_values($row) : false;
+			}
+		}
+	}
+
+	class Min_Driver extends Min_SQL {
+
+		function select($table, $select, $where, $group, $order = array(), $limit = 1, $page = 0, $print = false) {
+			$data = array();
+			if ($select != array("*")) {
+				$data["fields"] = $select;
+			}
+
+			if ($order) {
+				$sort = array();
+				foreach ($order as $col) {
+					$col = preg_replace('~ DESC$~', '', $col, 1, $count);
+					$sort[] = ($count ? array($col => "desc") : $col);
+				}
+				$data["sort"] = $sort;
+			}
+
+			if ($limit) {
+				$data["size"] = +$limit;
+				if ($page) {
+					$data["from"] = ($page * $limit);
+				}
+			}
+
+			foreach ($where as $val) {
+				if (preg_match('~^\((.+ OR .+)\)$~', $val, $matches)) {
+					$parts = explode(" OR ", $matches[1]);
+					$terms = array();
+					foreach ($parts as $part) {
+						list($col, $op, $val) = explode(" ", $part, 3);
+						$term = array($col => $val);
+						if ($op == "=") {
+							$terms[] = array("term" => $term);
+						} elseif (in_array($op, array("must", "should", "must_not"))) {
+							$data["query"]["bool"][$op][]["match"] = $term;
+						}
+					}
+
+					if (!empty($terms)) {
+						$data["query"]["bool"]["filter"][]["bool"]["should"] = $terms;
+					}
+				} else {
+					list($col, $op, $val) = explode(" ", $val, 3);
+					$term = array($col => $val);
+					if ($op == "=") {
+						$data["query"]["bool"]["filter"][] = array("term" => $term);
+					} elseif (in_array($op, array("must", "should", "must_not"))) {
+						$data["query"]["bool"][$op][]["match"] = $term;
+					}
+				}
+			}
+
+			$query = "$table/_search";
+			$start = microtime(true);
+			$search = $this->_conn->rootQuery($query, $data);
+
+			if ($print) {
+				echo adminer()->selectQuery("$query: " . json_encode($data), $start, !$search);
+			}
+			if (empty($search)) {
+				return false;
+			}
+
+			$return = array();
+			foreach ($search["hits"]["hits"] as $hit) {
+				$row = array();
+				if ($select == array("*")) {
+					$row["_id"] = $hit["_id"];
+				}
+
+				if ($select != array("*")) {
+					$fields = array();
+					foreach ($select as $key) {
+						$fields[$key] = $key == "_id" ? $hit["_id"] : $hit["_source"][$key];
+					}
+				} else {
+					$fields = $hit["_source"];
+				}
+				foreach ($fields as $key => $val) {
+					$row[$key] = (is_array($val) ? json_encode($val) : $val);
+				}
+
+				$return[] = $row;
+			}
+
+			return new Min_Result($return);
+		}
+
+		function update($type, $record, $queryWhere, $limit = 0, $separator = "\n") {
+			//! use $limit
+			$parts = preg_split('~ *= *~', $queryWhere);
+			if (count($parts) == 2) {
+				$id = trim($parts[1]);
+				$query = "$type/$id";
+
+				return $this->_conn->query($query, $record, 'POST');
+			}
+
+			return false;
+		}
+
+		function insert($type, $record) {
+			$id = ""; //! user should be able to inform _id
+			$query = "$type/$id";
+			$response = $this->_conn->query($query, $record, 'POST');
+			$this->_conn->last_id = $response['_id'];
+
+			return $response['created'];
+		}
+
+		function delete($table, $queryWhere, $limit = 0) {
+			//! use $limit
+			$ids = array();
+			if (isset($_GET["where"]["_id"]) && $_GET["where"]["_id"]) {
+				$ids[] = $_GET["where"]["_id"];
+			}
+			if (isset($_POST['check'])) {
+				foreach ($_POST['check'] as $check) {
+					$parts = preg_split('~ *= *~', $check);
+					if (count($parts) == 2) {
+						$ids[] = trim($parts[1]);
+					}
+				}
+			}
+
+			$this->_conn->affected_rows = 0;
+
+			foreach ($ids as $id) {
+				$query = "$table/_doc/$id";
+				$response = $this->_conn->query($query, null, 'DELETE');
+				if (isset($response['result']) && $response['result'] == 'deleted') {
+					$this->_conn->affected_rows++;
+				}
+			}
+
+			return $this->_conn->affected_rows;
+		}
+
+		function convertOperator($operator) {
+			return $operator == "LIKE %%" ? "should" : $operator;
+		}
+	}
+
+	function connect() {
+		$connection = new Min_DB;
+
+		list($server, $username, $password) = adminer()->credentials();
+		if ($password != "" && $connection->connect($server, $username, "")) {
+			return lang('Database does not support password.');
+		}
+
+		if ($connection->connect($server, $username, $password)) {
+			return $connection;
+		}
+
+		return $connection->error;
+	}
+
+	function support($feature) {
+		return preg_match("~table|columns~", $feature);
+	}
+
+	function logged_user() {
+		$credentials = adminer()->credentials();
+
+		return $credentials[1];
+	}
+
+	function get_databases() {
+		return array(ELASTIC_DB_NAME);
+	}
+
+	function limit($query, $where, $limit, $offset = 0, $separator = " ") {
+		return " $query$where" . ($limit !== null ? $separator . "LIMIT $limit" . ($offset ? " OFFSET $offset" : "") : "");
+	}
+
+	function collations() {
+		return array();
+	}
+
+	function db_collation($db, $collations) {
+		//
+	}
+
+	function engines() {
+		return array();
+	}
+
+	function count_tables($databases) {
+		$return = connection()->rootQuery('_aliases');
+		if (empty($return)) {
+			return array(
+				ELASTIC_DB_NAME => 0
+			);
+		}
+
+		return array(
+			ELASTIC_DB_NAME => count($return)
+		);
+	}
+
+	function tables_list() {
+		$aliases = connection()->rootQuery('_aliases');
+		if (empty($aliases)) {
+			return array();
+		}
+
+		ksort($aliases);
+
+		$tables = array();
+		foreach ($aliases as $name => $index) {
+			$tables[$name] = "table";
+
+			ksort($index["aliases"]);
+			$tables += array_fill_keys(array_keys($index["aliases"]), "view");
+		}
+
+		return $tables;
+	}
+
+	function table_status($name = "", $fast = false) {
+		$stats = connection()->rootQuery('_stats');
+		$aliases = connection()->rootQuery('_aliases');
+
+		if (empty($stats) || empty($aliases)) {
+			return array();
+		}
+
+		$result = array();
+
+		if ($name != "") {
+			if (isset($stats["indices"][$name])) {
+				return format_index_status($name, $stats["indices"][$name]);
+			} else foreach ($aliases as $index_name => $index) {
+				foreach ($index["aliases"] as $alias_name => $alias) {
+					if ($alias_name == $name) {
+						return format_alias_status($alias_name, $stats["indices"][$index_name]);
+					}
+				}
+			}
+		}
+
+		ksort($stats["indices"]);
+		foreach ($stats["indices"] as $name => $index) {
+			if ($name[0] == ".") {
+				continue;
+			}
+
+			$result[$name] = format_index_status($name, $index);
+
+			if (!empty($aliases[$name]["aliases"])) {
+				ksort($aliases[$name]["aliases"]);
+				foreach ($aliases[$name]["aliases"] as $alias_name => $alias) {
+					$result[$alias_name] = format_alias_status($alias_name, $stats["indices"][$name]);
+				}
+			}
+		}
+
+		return $result;
+	}
+
+	function format_index_status($name, $index) {
+		return array(
+			"Name" => $name,
+			"Engine" => "Lucene",
+			"Oid" => $index["uuid"],
+			"Rows" => $index["total"]["docs"]["count"],
+			"Auto_increment" => 0,
+			"Data_length" => $index["total"]["store"]["size_in_bytes"],
+			"Index_length" => 0,
+			"Data_free" => $index["total"]["store"]["reserved_in_bytes"],
+		);
+	}
+
+	function format_alias_status($name, $index) {
+		return array(
+			"Name" => $name,
+			"Engine" => "view",
+			"Rows" => $index["total"]["docs"]["count"],
+		);
+	}
+
+	function is_view($table_status) {
+		return $table_status["Engine"] == "view";
+	}
+
+	function error() {
+		return h(connection()->error);
+	}
+
+	function information_schema() {
+		//
+	}
+
+	function indexes($table, $connection2 = null) {
+		return array(
+			array("type" => "PRIMARY", "columns" => array("_id")),
+		);
+	}
+
+	function fields($table) {
+		$mappings = array();
+		$mapping = connection()->rootQuery("_mapping");
+
+		if (!isset($mapping[$table])) {
+			$aliases = connection()->rootQuery('_aliases');
+
+			foreach ($aliases as $index_name => $index) {
+				foreach ($index["aliases"] as $alias_name => $alias) {
+					if ($alias_name == $table) {
+						$table = $index_name;
+						break;
+					}
+				}
+			}
+		}
+
+		if (!empty($mapping)) {
+			$mappings = $mapping[$table]["mappings"]["properties"];
+		}
+
+		$result = array(
+			"_id" => array(
+				"field" => "_id",
+				"full_type" => "text",
+				"type" => "text",
+				"privileges" => array("insert" => 1, "select" => 1, "where" => 1, "order" => 1),
+			)
+		);
+
+		foreach ($mappings as $name => $field) {
+			$has_index = !isset($field["index"]) || $field["index"];
+
+			// TODO: privileges: where => $has_index
+			// TODO: privileges: sort => $field["type"] != "text"
+
+			$result[$name] = array(
+				"field" => $name,
+				"full_type" => $field["type"],
+				"type" => $field["type"],
+				"privileges" => array(
+					"insert" => 1,
+					"select" => 1,
+					"update" => 1,
+					"where" => !isset($field["index"]) || $field["index"] ?: null,
+					"order" => $field["type"] != "text" ?: null
+				),
+			);
+		}
+
+		return $result;
+	}
+
+	function foreign_keys($table) {
+		return array();
+	}
+
+	function table($idf) {
+		return $idf;
+	}
+
+	function idf_escape($idf) {
+		return $idf;
+	}
+
+	function convert_field($field) {
+		//
+	}
+
+	function unconvert_field($field, $return) {
+		return $return;
+	}
+
+	function fk_support($table_status) {
+		//
+	}
+
+	function found_rows($table_status, $where) {
+		return null;
+	}
+
+	/** Create index
+	 * @param string
+	 * @return mixed
+	 */
+	function create_database($db) {
+		return connection()->rootQuery(urlencode($db), null, 'PUT');
+	}
+
+	/** Remove index
+	 * @param array
+	 * @return mixed
+	 */
+	function drop_databases($databases) {
+		return connection()->rootQuery(urlencode(implode(',', $databases)), null, 'DELETE');
+	}
+
+	/** Alter type
+	 * @param array
+	 * @return mixed
+	 */
+	function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
+		$properties = array();
+		foreach ($fields as $f) {
+			$field_name = trim($f[1][0]);
+			$field_type = trim($f[1][1] ? $f[1][1] : "text");
+			$properties[$field_name] = array(
+				'type' => $field_type
+			);
+		}
+
+		if (!empty($properties)) {
+			$properties = array('properties' => $properties);
+		}
+
+		return connection()->query("_mapping/{$name}", $properties, 'PUT');
+	}
+
+	/** Drop types
+	 * @param array
+	 * @return bool
+	 */
+	function drop_tables($tables) {
+		$return = true;
+		foreach ($tables as $table) { //! convert to bulk api
+			$return = $return && connection()->query(urlencode($table), null, 'DELETE');
+		}
+
+		return $return;
+	}
+
+	function last_id() {
+		return connection()->last_id;
+	}
+
+	function driver_config() {
+		$types = array();
+		$structured_types = array();
+
+		foreach (array(
+			lang('Numbers') => array("long" => 3, "integer" => 5, "short" => 8, "byte" => 10, "double" => 20, "float" => 66, "half_float" => 12, "scaled_float" => 21),
+			lang('Date and time') => array("date" => 10),
+			lang('Strings') => array("string" => 65535, "text" => 65535),
+			lang('Binary') => array("binary" => 255),
+		) as $key => $val) {
+			$types += $val;
+			$structured_types[$key] = array_keys($val);
+		}
+
+		return array(
+			'possible_drivers' => array("json + allow_url_fopen"),
+			'jush' => "elastic",
+			'operators' => array("=", "must", "should", "must_not"),
+			'functions' => array(),
+			'grouping' => array(),
+			'edit_functions' => array(array("json")),
+			'types' => $types,
+			'structured_types' => $structured_types,
+		);
+	}
+}

plugins/drivers/elastic5.php

@@ -1,10 +1,10 @@
 <?php
-$drivers["elastic"] = "Elasticsearch (beta)";
+add_driver("elastic5", "Elasticsearch 5 (beta)");
 
-if (isset($_GET["elastic"])) {
+if (isset($_GET["elastic5"])) {
-	define("DRIVER", "elastic");
+	define("DRIVER", "elastic5");
 
-	if (function_exists('json_decode') && ini_bool('allow_url_fopen')) {
+	if (ini_bool('allow_url_fopen')) {
 		class Min_DB {
 			var $extension = "JSON", $server_info, $errno, $error, $_url, $_db;
 
@@ -16,6 +16,7 @@ if (isset($_GET["elastic"])) {
 			 */
 			function rootQuery($path, array $content = null, $method = 'GET') {
 				@ini_set('track_errors', 1); // @ - may be disabled
+
 				$file = @file_get_contents("$this->_url/" . ltrim($path, '/'), false, stream_context_create(array('http' => array(
 					'method' => $method,
 					'content' => $content !== null ? json_encode($content) : null,
@@ -55,6 +56,15 @@ if (isset($_GET["elastic"])) {
 			 * @return array|false
 			 */
 			function query($path, array $content = null, $method = 'GET') {
+				// Support for global search through all tables
+				if ($path != "" && $path[0] == "S" && preg_match('/SELECT 1 FROM ([^ ]+) WHERE (.+) LIMIT ([0-9]+)/', $path, $matches)) {
+					global $driver;
+
+					$where = explode(" AND ", $matches[2]);
+
+					return $driver->select($matches[1], array("*"), $where, null, array(), $matches[3]);
+				}
+
 				return $this->rootQuery(($this->_db != "" ? "$this->_db/" : "/") . ltrim($path, '/'), $content, $method);
 			}
 
@@ -83,13 +93,13 @@ if (isset($_GET["elastic"])) {
 
 			function select_db($database) {
 				$this->_db = $database;
+
 				return true;
 			}
 
 			function quote($string) {
 				return $string;
 			}
-
 		}
 
 		class Min_Result {
@@ -98,34 +108,33 @@ if (isset($_GET["elastic"])) {
 			function __construct($rows) {
 				$this->num_rows = count($rows);
 				$this->_rows = $rows;
+
 				reset($this->_rows);
 			}
 
 			function fetch_assoc() {
 				$return = current($this->_rows);
 				next($this->_rows);
+
 				return $return;
 			}
 
 			function fetch_row() {
-				return array_values($this->fetch_assoc());
+				$row = $this->fetch_assoc();
+
+				return $row ? array_values($row) : false;
 			}
-
 		}
-
 	}
 
-
-
 	class Min_Driver extends Min_SQL {
 
 		function select($table, $select, $where, $group, $order = array(), $limit = 1, $page = 0, $print = false) {
-			global $adminer;
 			$data = array();
-			$query = "$table/_search";
 			if ($select != array("*")) {
 				$data["fields"] = $select;
 			}
+
 			if ($order) {
 				$sort = array();
 				foreach ($order as $col) {
@@ -134,58 +143,78 @@ if (isset($_GET["elastic"])) {
 				}
 				$data["sort"] = $sort;
 			}
+
 			if ($limit) {
 				$data["size"] = +$limit;
 				if ($page) {
 					$data["from"] = ($page * $limit);
 				}
 			}
+
 			foreach ($where as $val) {
-				list($col, $op, $val) = explode(" ", $val, 3);
+				if (preg_match('~^\((.+ OR .+)\)$~', $val, $matches)) {
-				if ($col == "_id") {
+					$parts = explode(" OR ", $matches[1]);
-					$data["query"]["ids"]["values"][] = $val;
+					$terms = array();
-				}
+					foreach ($parts as $part) {
-				elseif ($col . $val != "") {
+						list($col, $op, $val) = explode(" ", $part, 3);
-					$term = array("term" => array(($col != "" ? $col : "_all") => $val));
+						$term = array($col => $val);
+						if ($op == "=") {
+							$terms[] = array("term" => $term);
+						} elseif (in_array($op, array("must", "should", "must_not"))) {
+							$data["query"]["bool"][$op][]["match"] = $term;
+						}
+					}
+
+					if (!empty($terms)) {
+						$data["query"]["bool"]["filter"][]["bool"]["should"] = $terms;
+					}
+				} else {
+					list($col, $op, $val) = explode(" ", $val, 3);
+					$term = array($col => $val);
 					if ($op == "=") {
-						$data["query"]["filtered"]["filter"]["and"][] = $term;
+						$data["query"]["bool"]["filter"][] = array("term" => $term);
-					} else {
+					} elseif (in_array($op, array("must", "should", "must_not"))) {
-						$data["query"]["filtered"]["query"]["bool"]["must"][] = $term;
+						$data["query"]["bool"][$op][]["match"] = $term;
 					}
 				}
 			}
-			if ($data["query"] && !$data["query"]["filtered"]["query"] && !$data["query"]["ids"]) {
+
-				$data["query"]["filtered"]["query"] = array("match_all" => array());
+			$query = (min_version(7) ? "" : "$table/") . "_search";
-			}
 			$start = microtime(true);
 			$search = $this->_conn->query($query, $data);
+
 			if ($print) {
-				echo $adminer->selectQuery("$query: " . json_encode($data), $start, !$search);
+				echo adminer()->selectQuery("$query: " . json_encode($data), $start, !$search);
 			}
 			if (!$search) {
 				return false;
 			}
+
 			$return = array();
 			foreach ($search['hits']['hits'] as $hit) {
 				$row = array();
 				if ($select == array("*")) {
 					$row["_id"] = $hit["_id"];
 				}
+
 				$fields = $hit['_source'];
 				if ($select != array("*")) {
 					$fields = array();
 					foreach ($select as $key) {
-						$fields[$key] = $hit['fields'][$key];
+						$fields[$key] = $key == "_id" ? [$hit["_id"]] : $hit['fields'][$key];
 					}
 				}
+
 				foreach ($fields as $key => $val) {
 					if ($data["fields"]) {
 						$val = $val[0];
 					}
 					$row[$key] = (is_array($val) ? json_encode($val) : $val); //! display JSON and others differently
 				}
+
 				$return[] = $row;
 			}
+
 			return new Min_Result($return);
 		}
 
@@ -195,8 +224,10 @@ if (isset($_GET["elastic"])) {
 			if (count($parts) == 2) {
 				$id = trim($parts[1]);
 				$query = "$type/$id";
+
 				return $this->_conn->query($query, $record, 'POST');
 			}
+
 			return false;
 		}
 
@@ -205,16 +236,17 @@ if (isset($_GET["elastic"])) {
 			$query = "$type/$id";
 			$response = $this->_conn->query($query, $record, 'POST');
 			$this->_conn->last_id = $response['_id'];
+
 			return $response['created'];
 		}
 
 		function delete($type, $queryWhere, $limit = 0) {
 			//! use $limit
 			$ids = array();
-			if (is_array($_GET["where"]) && $_GET["where"]["_id"]) {
+			if (isset($_GET["where"]["_id"]) && $_GET["where"]["_id"]) {
 				$ids[] = $_GET["where"]["_id"];
 			}
-			if (is_array($_POST['check'])) {
+			if (isset($_POST['check'])) {
 				foreach ($_POST['check'] as $check) {
 					$parts = preg_split('~ *= *~', $check);
 					if (count($parts) == 2) {
@@ -222,30 +254,37 @@ if (isset($_GET["elastic"])) {
 					}
 				}
 			}
+
 			$this->_conn->affected_rows = 0;
+
 			foreach ($ids as $id) {
 				$query = "{$type}/{$id}";
-				$response = $this->_conn->query($query, '{}', 'DELETE');
+				$response = $this->_conn->query($query, null, 'DELETE');
-				if (is_array($response) && $response['found'] == true) {
+				if ((isset($response['found']) && $response['found']) || (isset($response['result']) && $response['result'] == 'deleted')) {
 					$this->_conn->affected_rows++;
 				}
 			}
+
 			return $this->_conn->affected_rows;
 		}
+
+		function convertOperator($operator) {
+			return $operator == "LIKE %%" ? "should" : $operator;
+		}
 	}
 
-
-
 	function connect() {
-		global $adminer;
 		$connection = new Min_DB;
-		list($server, $username, $password) = $adminer->credentials();
+
+		list($server, $username, $password) = adminer()->credentials();
 		if ($password != "" && $connection->connect($server, $username, "")) {
 			return lang('Database does not support password.');
 		}
+
 		if ($connection->connect($server, $username, $password)) {
 			return $connection;
 		}
+
 		return $connection->error;
 	}
 
@@ -254,26 +293,31 @@ if (isset($_GET["elastic"])) {
 	}
 
 	function logged_user() {
-		global $adminer;
+		$credentials = adminer()->credentials();
-		$credentials = $adminer->credentials();
+
 		return $credentials[1];
 	}
 
 	function get_databases() {
-		global $connection;
+		$return = connection()->rootQuery('_aliases');
-		$return = $connection->rootQuery('_aliases');
 		if ($return) {
 			$return = array_keys($return);
 			sort($return, SORT_STRING);
 		}
+
 		return $return;
 	}
 
+	function limit($query, $where, $limit, $offset = 0, $separator = " ") {
+		return " $query$where" . ($limit !== null ? $separator . "LIMIT $limit" . ($offset ? " OFFSET $offset" : "") : "");
+	}
+
 	function collations() {
 		return array();
 	}
 
 	function db_collation($db, $collations) {
+		//
 	}
 
 	function engines() {
@@ -281,9 +325,9 @@ if (isset($_GET["elastic"])) {
 	}
 
 	function count_tables($databases) {
-		global $connection;
 		$return = array();
-		$result = $connection->query('_stats');
+
+		$result = connection()->query('_stats');
 		if ($result && $result['indices']) {
 			$indices = $result['indices'];
 			foreach ($indices as $indice => $stats) {
@@ -291,26 +335,25 @@ if (isset($_GET["elastic"])) {
 				$return[$indice] = $indexing['index_total'];
 			}
 		}
+
 		return $return;
 	}
 
 	function tables_list() {
-		global $connection;
+		if (min_version(7)) {
-
-		if (min_version(6)) {
 			return array('_doc' => 'table');
 		}
 
-		$return = $connection->query('_mapping');
+		$return = connection()->query('_mapping');
 		if ($return) {
-			$return = array_fill_keys(array_keys($return[$connection->_db]["mappings"]), 'table');
+			$return = array_fill_keys(array_keys($return[connection()->_db]["mappings"]), 'table');
 		}
+
 		return $return;
 	}
 
 	function table_status($name = "", $fast = false) {
-		global $connection;
+		$search = connection()->query("_search", array(
-		$search = $connection->query("_search", array(
 			"size" => 0,
 			"aggregations" => array(
 				"count_by_type" => array(
@@ -320,26 +363,30 @@ if (isset($_GET["elastic"])) {
 				)
 			)
 		), "POST");
+
 		$return = array();
+
 		if ($search) {
 			$tables = $search["aggregations"]["count_by_type"]["buckets"];
+
 			foreach ($tables as $table) {
 				$return[$table["key"]] = array(
 					"Name" => $table["key"],
 					"Engine" => "table",
 					"Rows" => $table["doc_count"],
 				);
+
 				if ($name != "" && $name == $table["key"]) {
 					return $return[$name];
 				}
 			}
 		}
+
 		return $return;
 	}
 
 	function error() {
-		global $connection;
+		return h(connection()->error);
-		return h($connection->error);
 	}
 
 	function information_schema() {
@@ -355,45 +402,54 @@ if (isset($_GET["elastic"])) {
 	}
 
 	function fields($table) {
-		global $connection;
-
 		$mappings = array();
-		if (min_version(6)) {
+
-			$result = $connection->query("_mapping");
+		if (min_version(7)) {
+			$result = connection()->query("_mapping");
 			if ($result) {
-				$mappings = $result[$connection->_db]['mappings']['properties'];
+				$mappings = $result[connection()->_db]['mappings']['properties'];
 			}
 		} else {
-			$result = $connection->query("$table/_mapping");
+			$result = connection()->query("$table/_mapping");
 			if ($result) {
 				$mappings = $result[$table]['properties'];
 				if (!$mappings) {
-					$mappings = $result[$connection->_db]['mappings'][$table]['properties'];
+					$mappings = $result[connection()->_db]['mappings'][$table]['properties'];
 				}
 			}
 		}
 
-		$return = array();
+		$return = array(
-		if ($mappings) {
+			"_id" => array(
-			foreach ($mappings as $name => $field) {
+				"field" => "_id",
-				$return[$name] = array(
+				"full_type" => "text",
-					"field" => $name,
+				"type" => "text",
-					"full_type" => $field["type"],
+				"privileges" => array("insert" => 1, "select" => 1, "where" => 1, "order" => 1),
-					"type" => $field["type"],
+			)
-					"privileges" => array(
+		);
-						"insert" => 1,
+
-						"select" => 1,
+		foreach ($mappings as $name => $field) {
-						"update" => 1,
+			if (isset($field["index"]) && !$field["index"]) continue;
-						"where" => !isset($field["index"]) || $field["index"] ?: null,
+
-						"order" => $field["type"] != "text" ?: null
+			$return[$name] = array(
-					),
+				"field" => $name,
-				);
+				"full_type" => $field["type"],
-				if ($field["properties"]) { // only leaf fields can be edited
+				"type" => $field["type"],
-					unset($return[$name]["privileges"]["insert"]);
+				"privileges" => array(
-					unset($return[$name]["privileges"]["update"]);
+					"insert" => 1,
-				}
+					"select" => 1,
+					"update" => 1,
+					"where" => !isset($field["index"]) || $field["index"] ?: null,
+					"order" => $field["type"] != "text" ?: null
+				),
+			);
+
+			if ($field["properties"]) { // only leaf fields can be edited
+				unset($return[$name]["privileges"]["insert"]);
+				unset($return[$name]["privileges"]["update"]);
 			}
 		}
+
 		return $return;
 	}
 
@@ -410,6 +466,7 @@ if (isset($_GET["elastic"])) {
 	}
 
 	function convert_field($field) {
+		//
 	}
 
 	function unconvert_field($field, $return) {
@@ -417,6 +474,7 @@ if (isset($_GET["elastic"])) {
 	}
 
 	function fk_support($table_status) {
+		//
 	}
 
 	function found_rows($table_status, $where) {
@@ -424,29 +482,26 @@ if (isset($_GET["elastic"])) {
 	}
 
 	/** Create index
-	* @param string
+	 * @param string
-	* @return mixed
+	 * @return mixed
-	*/
+	 */
 	function create_database($db) {
-		global $connection;
+		return connection()->rootQuery(urlencode($db), null, 'PUT');
-		return $connection->rootQuery(urlencode($db), null, 'PUT');
 	}
 
 	/** Remove index
-	* @param array
+	 * @param array
-	* @return mixed
+	 * @return mixed
-	*/
+	 */
 	function drop_databases($databases) {
-		global $connection;
+		return connection()->rootQuery(urlencode(implode(',', $databases)), null, 'DELETE');
-		return $connection->rootQuery(urlencode(implode(',', $databases)), array(), 'DELETE');
 	}
 
 	/** Alter type
-	* @param array
+	 * @param array
-	* @return mixed
+	 * @return mixed
-	*/
+	 */
 	function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
-		global $connection;
 		$properties = array();
 		foreach ($fields as $f) {
 			$field_name = trim($f[1][0]);
@@ -455,33 +510,34 @@ if (isset($_GET["elastic"])) {
 				'type' => $field_type
 			);
 		}
+
 		if (!empty($properties)) {
 			$properties = array('properties' => $properties);
 		}
-		return $connection->query("_mapping/{$name}", $properties, 'PUT');
+		return connection()->query("_mapping/{$name}", $properties, 'PUT');
 	}
 
 	/** Drop types
-	* @param array
+	 * @param array
-	* @return bool
+	 * @return bool
-	*/
+	 */
 	function drop_tables($tables) {
-		global $connection;
 		$return = true;
 		foreach ($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;
 	}
 
 	function last_id() {
-		global $connection;
+		return connection()->last_id;
-		return $connection->last_id;
 	}
 
 	function driver_config() {
 		$types = array();
 		$structured_types = array();
+
 		foreach (array(
 			lang('Numbers') => array("long" => 3, "integer" => 5, "short" => 8, "byte" => 10, "double" => 20, "float" => 66, "half_float" => 12, "scaled_float" => 21),
 			lang('Date and time') => array("date" => 10),
@@ -491,10 +547,11 @@ if (isset($_GET["elastic"])) {
 			$types += $val;
 			$structured_types[$key] = array_keys($val);
 		}
+
 		return array(
 			'possible_drivers' => array("json + allow_url_fopen"),
 			'jush' => "elastic",
-			'operators' => array("=", "query"),
+			'operators' => array("=", "must", "should", "must_not"),
 			'functions' => array(),
 			'grouping' => array(),
 			'edit_functions' => array(array("json")),