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<?php |
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/** |
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* Copyright (C) 2017 SURFnet. |
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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 Affero General Public License as |
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* published by the Free Software Foundation, either version 3 of the |
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* License, or (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 Affero General Public License for more details. |
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* |
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* You should have received a copy of the GNU Affero General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace SURFnet\VPN\Common\Http; |
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class Cookie |
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{ |
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/** @var array */ |
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private $cookieOptions; |
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/** |
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* @param array $cookieOptions |
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*/ |
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public function __construct(array $cookieOptions = []) |
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{ |
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$this->cookieOptions = array_merge( |
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[ |
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// defaults |
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'Secure' => true, // bool |
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'HttpOnly' => true, // bool |
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'Path' => '/', // string |
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'Domain' => null, // string |
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'Max-Age' => null, // int > 0 |
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'SameSite' => 'Strict', // "Strict|Lax" |
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], |
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$cookieOptions |
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); |
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} |
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public function delete($name) |
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{ |
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self::set($name, ''); |
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} |
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public function set($name, $value) |
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{ |
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$attributeValueList = []; |
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if ($this->cookieOptions['Secure']) { |
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$attributeValueList[] = 'Secure'; |
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} |
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if ($this->cookieOptions['HttpOnly']) { |
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$attributeValueList[] = 'HttpOnly'; |
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} |
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$attributeValueList[] = sprintf('Path=%s', $this->cookieOptions['Path']); |
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if (!is_null($this->cookieOptions['Domain'])) { |
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$attributeValueList[] = sprintf('Domain=%s', $this->cookieOptions['Domain']); |
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} |
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if (!is_null($this->cookieOptions['Max-Age'])) { |
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$attributeValueList[] = sprintf('Max-Age=%d', $this->cookieOptions['Max-Age']); |
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} |
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$attributeValueList[] = sprintf('SameSite=%s', $this->cookieOptions['SameSite']); |
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header( |
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sprintf( |
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'Set-Cookie: %s=%s; %s', |
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$name, |
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$value, |
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implode('; ', $attributeValueList) |
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), |
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false |
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); |
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} |
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/** |
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* Replace an existing HTTP cookie. |
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* |
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* @param string $name the cookie name |
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* @param string $value the cookie value |
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*/ |
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protected function replace($name, $value) |
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{ |
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$cookieList = []; |
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foreach (headers_list() as $hdr) { |
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if (0 === stripos($hdr, 'Set-Cookie: ')) { |
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// found "Set-Cookie" |
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if (0 !== stripos($hdr, sprintf('Set-Cookie: %s=%s', $name, $value))) { |
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// not the one we want to replace, add to backup list |
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$cookieList[] = $hdr; |
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} |
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} |
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} |
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// remove all "Set-Cookie" headers, `header_remove()` is case |
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// insensitive |
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header_remove('Set-Cookie'); |
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// restore cookies we want to keep |
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foreach ($cookieList as $cookie) { |
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header($cookie, false); |
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} |
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self::set($name, $value); |
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} |
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} |
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eduvpn /
vpn-lib-common
