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<?php declare(strict_types=1);
/*
** Zabbix
** Copyright (C) 2001-2020 Zabbix SIA
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
**
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software
** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
/**
* Class to normalize incoming data.
*/
class CImportDataNormalizer {
protected $rules;
const EOL_LF = 0x01;
public function __construct(array $schema) {
$this->rules = $schema;
}
public function normalize($data) {
$data['zabbix_export'] = $this->normalizeArrayKeys($data['zabbix_export'], $this->rules);
$data['zabbix_export'] = $this->normalizeStrings($data['zabbix_export']);
return $data;
}
/**
* Convert array keys to numeric.
*
* @param mixed $data Import data.
* @param array $rules Schema rules.
*
* @return mixed
*/
protected function normalizeArrayKeys($data, array $rules) {
if (!is_array($data)) {
return $data;
}
if ($rules['type'] & XML_ARRAY) {
foreach ($rules['rules'] as $tag => $tag_rules) {
if (array_key_exists('ex_rules', $tag_rules)) {
$tag_rules = call_user_func($tag_rules['ex_rules'], $data);
}
if (array_key_exists($tag, $data)) {
$data[$tag] = $this->normalizeArrayKeys($data[$tag], $tag_rules);
}
}
}
elseif ($rules['type'] & XML_INDEXED_ARRAY) {
$prefix = $rules['prefix'];
foreach ($data as $tag => $value) {
$data[$tag] = $this->normalizeArrayKeys($value, $rules['rules'][$prefix]);
}
$data = array_values($data);
}
return $data;
}
/**
* Add CR to string type fields.
*
* @param mixed $data Import data.
*
* @return mixed
*/
protected function normalizeStrings($data) {
if ($this->rules['type'] & XML_STRING) {
$data = str_replace("\r\n", "\n", $data);
$data = (array_key_exists('flags', $this->rules) && $this->rules['flags'] & self::EOL_LF)
? $data
: str_replace("\n", "\r\n", $data);
}
return $data;
}
}
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