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104 lines
2.6 KiB
104 lines
2.6 KiB
<?php declare(strict_types = 0);
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/*
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** Zabbix
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** Copyright (C) 2001-2023 Zabbix SIA
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**/
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/**
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* Class to normalize incoming data.
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*/
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class CImportDataNormalizer {
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protected $rules;
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public const EOL_LF = 0x01;
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public const LOWERCASE = 0x02;
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public function __construct(array $schema) {
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$this->rules = $schema;
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}
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public function normalize(array $data): array {
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$data['zabbix_export'] = $this->convert($data['zabbix_export'], $this->rules);
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return $data;
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}
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/**
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* Convert array keys to numeric and normalize strings.
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*
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* @param mixed $data Import data.
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* @param array $rules Schema rules.
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*
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* @return mixed
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*/
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protected function convert($data, array $rules) {
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if (!is_array($data)) {
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if ($rules['type'] & XML_STRING) {
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$data = $this->normalizeStrings($data, $rules);
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if (array_key_exists('flags', $rules) && $rules['flags'] & self::LOWERCASE) {
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$data = mb_strtolower($data);
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}
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}
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return $data;
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}
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if ($rules['type'] & XML_ARRAY) {
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foreach ($rules['rules'] as $tag => $tag_rules) {
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if (array_key_exists('ex_rules', $tag_rules)) {
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$tag_rules = call_user_func($tag_rules['ex_rules'], $data);
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}
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if (array_key_exists($tag, $data)) {
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$data[$tag] = $this->convert($data[$tag], $tag_rules);
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}
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}
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}
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elseif ($rules['type'] & XML_INDEXED_ARRAY) {
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$prefix = $rules['prefix'];
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foreach ($data as $tag => $value) {
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$data[$tag] = $this->convert($value, $rules['rules'][$prefix]);
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}
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$data = array_values($data);
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}
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return $data;
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}
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/**
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* Add CR to string type fields.
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*
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* @param string $data Import data.
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* @param array $rules Schema rules.
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*
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* @return string
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*/
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protected function normalizeStrings(string $data, array $rules): string {
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$data = str_replace("\r\n", "\n", $data);
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$data = (array_key_exists('flags', $rules) && $rules['flags'] & self::EOL_LF)
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? $data
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: str_replace("\n", "\r\n", $data);
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return $data;
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}
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}
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