adminerevo/adminer/drivers/elastic.inc.php
Peter Knut 922e1d96b0 Fix displaying type mapping for Elasticsearch >= 6.0
Earlier versions of Elasticsearch (<= 5) supported multiple types per index. That meant that you could have different data mappings for each type. With Elasticsearch 6, this was removed and you can only have single mapping type.
2021-02-07 13:24:03 +01:00

481 lines
12 KiB
PHP

<?php
$drivers["elastic"] = "Elasticsearch (beta)";
if (isset($_GET["elastic"])) {
$possible_drivers = array("json + allow_url_fopen");
define("DRIVER", "elastic");
if (function_exists('json_decode') && ini_bool('allow_url_fopen')) {
class Min_DB {
var $extension = "JSON", $server_info, $errno, $error, $_url, $_db;
/** Performs query
* @param string
* @param array
* @param string
* @return mixed
*/
function rootQuery($path, $content = array(), $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 ? $content : json_encode($content),
'header' => 'Content-Type: application/json',
'ignore_errors' => 1, // available since PHP 5.2.10
))));
if (!$file) {
$this->error = $php_errormsg;
return $file;
}
if (!preg_match('~^HTTP/[0-9.]+ 2~i', $http_response_header[0])) {
$this->error = lang('Invalid credentials.') . " $http_response_header[0]";
return false;
}
$return = json_decode($file, true);
if ($return === null) {
$this->errno = json_last_error();
if (function_exists('json_last_error_msg')) {
$this->error = json_last_error_msg();
} else {
$constants = get_defined_constants(true);
foreach ($constants['json'] as $name => $value) {
if ($value == $this->errno && preg_match('~^JSON_ERROR_~', $name)) {
$this->error = $name;
break;
}
}
}
}
return $return;
}
/** Performs query relative to actual selected DB
* @param string
* @param array
* @param string
* @return mixed
*/
function query($path, $content = array(), $method = 'GET') {
return $this->rootQuery(($this->_db != "" ? "$this->_db/" : "/") . ltrim($path, '/'), $content, $method);
}
function connect($server, $username, $password) {
preg_match('~^(https?://)?(.*)~', $server, $match);
$this->_url = ($match[1] ? $match[1] : "http://") . "$username:$password@$match[2]";
$return = $this->query('');
if ($return) {
$this->server_info = $return['version']['number'];
}
return (bool) $return;
}
function select_db($database) {
$this->_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 $return;
}
function fetch_row() {
return array_values($this->fetch_assoc());
}
}
}
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) {
$col = preg_replace('~ DESC$~', '', $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 $val) {
list($col, $op, $val) = explode(" ", $val, 3);
if ($col == "_id") {
$data["query"]["ids"]["values"][] = $val;
}
elseif ($col . $val != "") {
$term = array("term" => array(($col != "" ? $col : "_all") => $val));
if ($op == "=") {
$data["query"]["filtered"]["filter"]["and"][] = $term;
} else {
$data["query"]["filtered"]["query"]["bool"]["must"][] = $term;
}
}
}
if ($data["query"] && !$data["query"]["filtered"]["query"] && !$data["query"]["ids"]) {
$data["query"]["filtered"]["query"] = array("match_all" => array());
}
$start = microtime(true);
$search = $this->_conn->query($query, $data);
if ($print) {
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];
}
}
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);
}
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 $response['created'];
}
function delete($type, $queryWhere, $limit = 0) {
//! use $limit
$ids = array();
if (is_array($_GET["where"]) && $_GET["where"]["_id"]) {
$ids[] = $_GET["where"]["_id"];
}
if (is_array($_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) {
$query = "{$type}/{$id}";
$response = $this->_conn->query($query, '{}', 'DELETE');
if (is_array($response) && $response['found'] == true) {
$this->_conn->affected_rows++;
}
}
return $this->_conn->affected_rows;
}
}
function connect() {
global $adminer;
$connection = new Min_DB;
list($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("~database|table|columns~", $feature);
}
function logged_user() {
global $adminer;
$credentials = $adminer->credentials();
return $credentials[1];
}
function get_databases() {
global $connection;
$return = $connection->rootQuery('_aliases');
if ($return) {
$return = array_keys($return);
sort($return, SORT_STRING);
}
return $return;
}
function collations() {
return array();
}
function db_collation($db, $collations) {
}
function engines() {
return array();
}
function count_tables($databases) {
global $connection;
$return = array();
$result = $connection->query('_stats');
if ($result && $result['indices']) {
$indices = $result['indices'];
foreach ($indices as $indice => $stats) {
$indexing = $stats['total']['indexing'];
$return[$indice] = $indexing['index_total'];
}
}
return $return;
}
function tables_list() {
global $connection;
if (min_version(6)) {
return array('_doc' => 'table');
}
$return = $connection->query('_mapping');
if ($return) {
$return = array_fill_keys(array_keys($return[$connection->_db]["mappings"]), 'table');
}
return $return;
}
function table_status($name = "", $fast = false) {
global $connection;
$search = $connection->query("_search", array(
"size" => 0,
"aggregations" => array(
"count_by_type" => array(
"terms" => array(
"field" => "_type"
)
)
)
), "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);
}
function information_schema() {
}
function is_view($table_status) {
}
function indexes($table, $connection2 = null) {
return array(
array("type" => "PRIMARY", "columns" => array("_id")),
);
}
function fields($table) {
global $connection;
$mappings = array();
if (min_version(6)) {
$result = $connection->query("_mapping");
if ($result) {
$mappings = $result[$connection->_db]['mappings']['properties'];
}
} else {
$result = $connection->query("$table/_mapping");
if ($result) {
$mappings = $result[$table]['properties'];
if (!$mappings) {
$mappings = $result[$connection->_db]['mappings'][$table]['properties'];
}
}
}
$return = array();
if ($mappings) {
foreach ($mappings as $name => $field) {
$return[$name] = array(
"field" => $name,
"full_type" => $field["type"],
"type" => $field["type"],
"privileges" => array("insert" => 1, "select" => 1, "update" => 1),
);
if ($field["properties"]) { // only leaf fields can be edited
unset($return[$name]["privileges"]["insert"]);
unset($return[$name]["privileges"]["update"]);
}
}
}
return $return;
}
function foreign_keys($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) {
global $connection;
return $connection->rootQuery(urlencode($db), null, 'PUT');
}
/** Remove index
* @param array
* @return mixed
*/
function drop_databases($databases) {
global $connection;
return $connection->rootQuery(urlencode(implode(',', $databases)), array(), 'DELETE');
}
/** Alter type
* @param array
* @return mixed
*/
function alter_table($table, $name, $fields, $foreign, $comment, $engine, $collation, $auto_increment, $partitioning) {
global $connection;
$properties = array();
foreach ($fields as $f) {
$field_name = trim($f[1][0]);
$field_type = trim($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) {
global $connection;
$return = true;
foreach ($tables as $table) { //! convert to bulk api
$return = $return && $connection->query(urlencode($table), array(), 'DELETE');
}
return $return;
}
function last_id() {
global $connection;
return $connection->last_id;
}
$jush = "elastic";
$operators = array("=", "query");
$functions = array();
$grouping = array();
$edit_functions = array(array("json"));
$types = array(); ///< @var array ($type => $maximum_unsigned_length, ...)
$structured_types = array(); ///< @var array ($description => array($type, ...), ...)
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);
}
}