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Ip.php

192 lines

1	<?php
2	/**
3	* Zend Framework
4	*
5	* LICENSE
6	*
7	* This source file is subject to the new BSD license that is bundled
8	* with this package in the file LICENSE.txt.
9	* It is also available through the world-wide-web at this URL:
10	* http://framework.zend.com/license/new-bsd
11	* If you did not receive a copy of the license and are unable to
12	* obtain it through the world-wide-web, please send an email
13	* to license@zend.com so we can send you a copy immediately.
14	*
15	* @category Zend
16	* @package Zend_Validate
17	* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
18	* @license http://framework.zend.com/license/new-bsd New BSD License
19	* @version $Id: Ip.php 23775 2011-03-01 17:25:24Z ralph $
20	*/
21
22	/**
23	* @see Zend_Validate_Abstract
24	*/
25	// require_once 'Zend/Validate/Abstract.php';
26
27	/**
28	* @category Zend
29	* @package Zend_Validate
30	* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
31	* @license http://framework.zend.com/license/new-bsd New BSD License
32	*/
33	class Zend_Validate_Ip extends Zend_Validate_Abstract
34	{
35	const INVALID = 'ipInvalid';
36	const NOT_IP_ADDRESS = 'notIpAddress';
37
38	/**
39	* @var array
40	*/
41	protected $_messageTemplates = array(
42	self::INVALID => "Invalid type given. String expected",
43	self::NOT_IP_ADDRESS => "'%value%' does not appear to be a valid IP address",
44	);
45
46	/**
47	* internal options
48	*
49	* @var array
50	*/
51	protected $_options = array(
52	'allowipv6' => true,
53	'allowipv4' => true
54	);
55
56	/**
57	* Sets validator options
58	*
59	* @param array $options OPTIONAL Options to set, see the manual for all available options
60	* @return void
61	*/
62	public function __construct($options = array())
63	{
64	if ($options instanceof Zend_Config) {
65	$options = $options->toArray();
66	} else if (!is_array($options)) {
67	$options = func_get_args();
68	$temp['allowipv6'] = array_shift($options);
69	if (!empty($options)) {
70	$temp['allowipv4'] = array_shift($options);
71	}
72
73	$options = $temp;
74	}
75
76	$options += $this->_options;
77	$this->setOptions($options);
78	}
79
80	/**
81	* Returns all set options
82	*
83	* @return array
84	*/
85	public function getOptions()
86	{
87	return $this->_options;
88	}
89
90	/**
91	* Sets the options for this validator
92	*
93	* @param array $options
94	* @return Zend_Validate_Ip
95	*/
96	public function setOptions($options)
97	{
98	if (array_key_exists('allowipv6', $options)) {
99	$this->_options['allowipv6'] = (boolean) $options['allowipv6'];
100	}
101
102	if (array_key_exists('allowipv4', $options)) {
103	$this->_options['allowipv4'] = (boolean) $options['allowipv4'];
104	}
105
106	if (!$this->_options['allowipv4'] && !$this->_options['allowipv6']) {
107	// require_once 'Zend/Validate/Exception.php';
108	throw new Zend_Validate_Exception('Nothing to validate. Check your options');
109	}
110
111	return $this;
112	}
113
114	/**
115	* Defined by Zend_Validate_Interface
116	*
117	* Returns true if and only if $value is a valid IP address
118	*
119	* @param mixed $value
120	* @return boolean
121	*/
122	public function isValid($value)
123	{
124	if (!is_string($value)) {
125	$this->_error(self::INVALID);
126	return false;
127	}
128
129	$this->_setValue($value);
130	if (($this->_options['allowipv4'] && !$this->_options['allowipv6'] && !$this->_validateIPv4($value)) \|\|
131	(!$this->_options['allowipv4'] && $this->_options['allowipv6'] && !$this->_validateIPv6($value)) \|\|
132	($this->_options['allowipv4'] && $this->_options['allowipv6'] && !$this->_validateIPv4($value) && !$this->_validateIPv6($value))) {
133	$this->_error(self::NOT_IP_ADDRESS);
134	return false;
135	}
136
137	return true;
138	}
139
140	/**
141	* Validates an IPv4 address
142	*
143	* @param string $value
144	*/
145	protected function _validateIPv4($value) {
146	$ip2long = ip2long($value);
147	if($ip2long === false) {
148	return false;
149	}
150
151	return $value == long2ip($ip2long);
152	}
153
154	/**
155	* Validates an IPv6 address
156	*
157	* @param string $value Value to check against
158	* @return boolean True when $value is a valid ipv6 address
159	* False otherwise
160	*/
161	protected function _validateIPv6($value) {
162	if (strlen($value) < 3) {
163	return $value == '::';
164	}
165
166	if (strpos($value, '.')) {
167	$lastcolon = strrpos($value, ':');
168	if (!($lastcolon && $this->_validateIPv4(substr($value, $lastcolon + 1)))) {
169	return false;
170	}
171
172	$value = substr($value, 0, $lastcolon) . ':0:0';
173	}
174
175	if (strpos($value, '::') === false) {
176	return preg_match('/\A(?:[a-f0-9]{1,4}:){7}[a-f0-9]{1,4}\z/i', $value);
177	}
178
179	$colonCount = substr_count($value, ':');
180	if ($colonCount < 8) {
181	return preg_match('/\A(?::\|(?:[a-f0-9]{1,4}:)+):(?:(?:[a-f0-9]{1,4}:)*[a-f0-9]{1,4})?\z/i', $value);
182	}
183
184	// special case with ending or starting double colon
185	if ($colonCount == 8) {
186	return preg_match('/\A(?:::)?(?:[a-f0-9]{1,4}:){6}[a-f0-9]{1,4}(?:::)?\z/i', $value);
187	}
188
189	return false;
190	}
191	}
192