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<?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 IPv4 and IPv6 addresses
*/
class CIPParser extends CParser {
/**
* @var CIPv4Parser
*/
private $ipv4_parser;
/**
* @var CIPv6Parser
*/
private $ipv6_parser;
/**
* @var CUserMacroParser
*/
private $user_macro_parser;
/**
* @var CLLDMacroParser
*/
private $lld_macro_parser;
/**
* @var CLLDMacroFunctionParser
*/
private $lld_macro_function_parser;
/**
* Supported options:
* 'v6' => true Enabled support of IPv6 addresses;
* 'usermacros' => true Enabled support of user macros;
* 'lldmacros' => true Enabled support of LLD macros;
* 'macros' => true Enabled support of all macros. Allows array with list of macros.
*
* @var array
*/
private $options = [
'v6' => true,
'usermacros' => false,
'lldmacros' => false,
'macros' => []
];
/**
* @param array $options
*/
public function __construct(array $options) {
if (array_key_exists('v6', $options)) {
$this->options['v6'] = $options['v6'];
}
if (array_key_exists('usermacros', $options)) {
$this->options['usermacros'] = $options['usermacros'];
}
if (array_key_exists('lldmacros', $options)) {
$this->options['lldmacros'] = $options['lldmacros'];
}
if (array_key_exists('macros', $options)) {
$this->options['macros'] = $options['macros'];
}
if ($this->options['v6']) {
$this->ipv6_parser = new CIPv6Parser();
}
if ($this->options['usermacros']) {
$this->user_macro_parser = new CUserMacroParser();
}
if ($this->options['lldmacros']) {
$this->lld_macro_parser = new CLLDMacroParser();
$this->lld_macro_function_parser = new CLLDMacroFunctionParser();
}
if ($this->options['macros']) {
$this->macro_parser = new CMacroParser(['macros' => $this->options['macros']]);
}
$this->ipv4_parser = new CIPv4Parser();
}
/**
* @param string $source
* @param int $pos
*
* @return bool
*/
public function parse($source, $pos = 0) {
$this->length = 0;
$this->match = '';
if ($this->ipv4_parser->parse($source, $pos) != self::PARSE_FAIL) {
$this->length = $this->ipv4_parser->getLength();
$this->match = $this->ipv4_parser->getMatch();
}
elseif ($this->options['v6'] && $this->ipv6_parser->parse($source, $pos) != self::PARSE_FAIL) {
$this->length = $this->ipv6_parser->getLength();
$this->match = $this->ipv6_parser->getMatch();
}
elseif ($this->options['usermacros'] && $this->user_macro_parser->parse($source, $pos) != self::PARSE_FAIL) {
$this->length = $this->user_macro_parser->getLength();
$this->match = $this->user_macro_parser->getMatch();
}
elseif ($this->options['lldmacros'] && $this->lld_macro_parser->parse($source, $pos) != self::PARSE_FAIL) {
$this->length = $this->lld_macro_parser->getLength();
$this->match = $this->lld_macro_parser->getMatch();
}
elseif ($this->options['lldmacros']
&& $this->lld_macro_function_parser->parse($source, $pos) != self::PARSE_FAIL) {
$this->length = $this->lld_macro_function_parser->getLength();
$this->match = $this->lld_macro_function_parser->getMatch();
}
elseif ($this->options['macros'] && $this->macro_parser->parse($source, $pos) != self::PARSE_FAIL) {
$this->length = $this->macro_parser->getLength();
$this->match = $this->macro_parser->getMatch();
}
else {
return self::PARSE_FAIL;
}
return isset($source[$pos + $this->length]) ? self::PARSE_SUCCESS_CONT : self::PARSE_SUCCESS;
}
}
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