You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
161 lines
3.5 KiB
161 lines
3.5 KiB
1 year ago
|
<?php
|
||
|
/*
|
||
|
** Zabbix
|
||
|
** Copyright (C) 2001-2023 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.
|
||
|
**/
|
||
|
|
||
|
|
||
|
/**
|
||
|
* A parser for host names and host prototype names.
|
||
|
*/
|
||
|
class CHostNameParser extends CParser {
|
||
|
|
||
|
private $options = [
|
||
|
'lldmacros' => false
|
||
|
];
|
||
|
|
||
|
/**
|
||
|
* Array of macros found in string.
|
||
|
*
|
||
|
* @var array
|
||
|
*/
|
||
|
private $macros = [];
|
||
|
|
||
|
/**
|
||
|
* LLD macro parser.
|
||
|
*
|
||
|
* @var CLLDMacroParser
|
||
|
*/
|
||
|
private $lld_macro_parser;
|
||
|
|
||
|
/**
|
||
|
* LLD macro function parser.
|
||
|
*
|
||
|
* @var CLLDMacroFunctionParser
|
||
|
*/
|
||
|
private $lld_macro_function_parser;
|
||
|
|
||
|
public function __construct($options = []) {
|
||
|
if (array_key_exists('lldmacros', $options)) {
|
||
|
$this->options['lldmacros'] = $options['lldmacros'];
|
||
|
}
|
||
|
|
||
|
if ($this->options['lldmacros']) {
|
||
|
$this->lld_macro_parser = new CLLDMacroParser();
|
||
|
$this->lld_macro_function_parser = new CLLDMacroFunctionParser();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Parse the host name or host prototype name.
|
||
|
*
|
||
|
* @param string $source Source string that needs to be parsed.
|
||
|
* @param int $pos Position offset.
|
||
|
*
|
||
|
* @return int
|
||
|
*/
|
||
|
public function parse($source, $pos = 0) {
|
||
|
$this->length = 0;
|
||
|
$this->match = '';
|
||
|
$this->macros = [];
|
||
|
|
||
|
$p = $pos;
|
||
|
|
||
|
if (isset($source[$p]) && $source[$p] === ' ') {
|
||
|
return self::PARSE_FAIL;
|
||
|
}
|
||
|
|
||
|
while (isset($source[$p])) {
|
||
|
if (self::parseCharacters($source, $p)) {
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
if ($this->options['lldmacros'] && $this->parseLLDMacro($source, $p)) {
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
if ($pos == $p) {
|
||
|
return self::PARSE_FAIL;
|
||
|
}
|
||
|
|
||
|
while ($source[$p - 1] === ' ') {
|
||
|
$p--;
|
||
|
}
|
||
|
|
||
|
$this->length = $p - $pos;
|
||
|
$this->match = substr($source, $pos, $this->length);
|
||
|
|
||
|
return isset($source[$p]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Retrieve macros found in source string.
|
||
|
*
|
||
|
* @return array
|
||
|
*/
|
||
|
public function getMacros() {
|
||
|
return $this->macros;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Parse host name characters.
|
||
|
*
|
||
|
* @param string $source Source string that needs to be parsed.
|
||
|
* @param int $pos Position offset.
|
||
|
*
|
||
|
* @return bool
|
||
|
*/
|
||
|
private static function parseCharacters($source, &$pos) {
|
||
|
if (!preg_match('/^'.ZBX_PREG_HOST_FORMAT.'/', substr($source, $pos), $matches)) {
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
$pos += strlen($matches[0]);
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
/**
|
||
|
* Parse LLD macros.
|
||
|
*
|
||
|
* @param string $source Source string that needs to be parsed.
|
||
|
* @param int $pos Position offset.
|
||
|
*
|
||
|
* @return bool
|
||
|
*/
|
||
|
private function parseLLDMacro($source, &$pos) {
|
||
|
if ($this->lld_macro_parser->parse($source, $pos) != self::PARSE_FAIL) {
|
||
|
$pos += $this->lld_macro_parser->getLength();
|
||
|
$this->macros[] = $this->lld_macro_parser->getMatch();
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
if ($this->lld_macro_function_parser->parse($source, $pos) != self::PARSE_FAIL) {
|
||
|
$pos += $this->lld_macro_function_parser->getLength();
|
||
|
$this->macros[] = $this->lld_macro_function_parser->getMatch();
|
||
|
|
||
|
return true;
|
||
|
}
|
||
|
|
||
|
return false;
|
||
|
}
|
||
|
}
|