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- 27.10.2014
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Cookie.php
001 <?php
002
003 /*
004 * This file is part of the Symfony package.
005 *
006 * (c) Fabien Potencier <fabien@symfony.com>
007 *
008 * For the full copyright and license information, please view the LICENSE
009 * file that was distributed with this source code.
010 */
011
012 namespace Symfony\Component\HttpFoundation;
013
014 /**
015 * Represents a cookie
016 *
017 * @author Johannes M. Schmitt <schmittjoh@gmail.com>
018 *
019 * @api
020 */
021 class Cookie
022 {
023 protected $name;
024 protected $value;
025 protected $domain;
026 protected $expire;
027 protected $path;
028 protected $secure;
029 protected $httpOnly;
030
031 /**
032 * Constructor.
033 *
034 * @param string $name The name of the cookie
035 * @param string $value The value of the cookie
036 * @param int|string|\DateTime $expire The time the cookie expires
037 * @param string $path The path on the server in which the cookie will be available on
038 * @param string $domain The domain that the cookie is available to
039 * @param bool $secure Whether the cookie should only be transmitted over a secure HTTPS connection from the client
040 * @param bool $httpOnly Whether the cookie will be made accessible only through the HTTP protocol
041 *
042 * @throws \InvalidArgumentException
043 *
044 * @api
045 */
046 public function __construct($name, $value = null, $expire = 0, $path = '/', $domain = null, $secure = false, $httpOnly = true)
047 {
048 // from PHP source code
049 if (preg_match("/[=,; \t\r\n\013\014]/", $name)) {
050 throw new \InvalidArgumentException(sprintf('The cookie name "%s" contains invalid characters.', $name));
051 }
052
053 if (empty($name)) {
054 throw new \InvalidArgumentException('The cookie name cannot be empty.');
055 }
056
057 // convert expiration time to a Unix timestamp
058 if ($expire instanceof \DateTime) {
059 $expire = $expire->format('U');
060 } elseif (!is_numeric($expire)) {
061 $expire = strtotime($expire);
062
063 if (false === $expire || -1 === $expire) {
064 throw new \InvalidArgumentException('The cookie expiration time is not valid.');
065 }
066 }
067
068 $this->name = $name;
069 $this->value = $value;
070 $this->domain = $domain;
071 $this->expire = $expire;
072 $this->path = empty($path) ? '/' : $path;
073 $this->secure = (bool) $secure;
074 $this->httpOnly = (bool) $httpOnly;
075 }
076
077 /**
078 * Returns the cookie as a string.
079 *
080 * @return string The cookie
081 */
082 public function __toString()
083 {
084 $str = urlencode($this->getName()).'=';
085
086 if ('' === (string) $this->getValue()) {
087 $str .= 'deleted; expires='.gmdate("D, d-M-Y H:i:s T", time() - 31536001);
088 } else {
089 $str .= urlencode($this->getValue());
090
091 if ($this->getExpiresTime() !== 0) {
092 $str .= '; expires='.gmdate("D, d-M-Y H:i:s T", $this->getExpiresTime());
093 }
094 }
095
096 if ($this->path) {
097 $str .= '; path='.$this->path;
098 }
099
100 if ($this->getDomain()) {
101 $str .= '; domain='.$this->getDomain();
102 }
103
104 if (true === $this->isSecure()) {
105 $str .= '; secure';
106 }
107
108 if (true === $this->isHttpOnly()) {
109 $str .= '; httponly';
110 }
111
112 return $str;
113 }
114
115 /**
116 * Gets the name of the cookie.
117 *
118 * @return string
119 *
120 * @api
121 */
122 public function getName()
123 {
124 return $this->name;
125 }
126
127 /**
128 * Gets the value of the cookie.
129 *
130 * @return string
131 *
132 * @api
133 */
134 public function getValue()
135 {
136 return $this->value;
137 }
138
139 /**
140 * Gets the domain that the cookie is available to.
141 *
142 * @return string
143 *
144 * @api
145 */
146 public function getDomain()
147 {
148 return $this->domain;
149 }
150
151 /**
152 * Gets the time the cookie expires.
153 *
154 * @return int
155 *
156 * @api
157 */
158 public function getExpiresTime()
159 {
160 return $this->expire;
161 }
162
163 /**
164 * Gets the path on the server in which the cookie will be available on.
165 *
166 * @return string
167 *
168 * @api
169 */
170 public function getPath()
171 {
172 return $this->path;
173 }
174
175 /**
176 * Checks whether the cookie should only be transmitted over a secure HTTPS connection from the client.
177 *
178 * @return bool
179 *
180 * @api
181 */
182 public function isSecure()
183 {
184 return $this->secure;
185 }
186
187 /**
188 * Checks whether the cookie will be made accessible only through the HTTP protocol.
189 *
190 * @return bool
191 *
192 * @api
193 */
194 public function isHttpOnly()
195 {
196 return $this->httpOnly;
197 }
198
199 /**
200 * Whether this cookie is about to be cleared
201 *
202 * @return bool
203 *
204 * @api
205 */
206 public function isCleared()
207 {
208 return $this->expire < time();
209 }
210 }
211