469 lines
17 KiB
PHP
469 lines
17 KiB
PHP
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<?php namespace ProcessWire;
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/**
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* Provides methods for managing cookies via the $input->cookie API variable
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*
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* #pw-summary Enables getting, setting and removing cookies from the ProcessWire API using `$input->cookie`.
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*
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* #pw-body =
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*
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* - Whether getting or setting, cookie values are always strings.
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* - Values retrieved from `$input->cookie` are user input (like PHP’s $_COOKIE) and need to be sanitized and validated by you.
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* - When removing/unsetting cookies, the path, domain, secure, and httponly options must be the same as when the cookie was set,
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* as a result, it’s good to have these things predefined in `$config->cookieOptions` rather than setting during runtime.
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* - Note that this class does not manage PW’s session cookies.
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*
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* ~~~~~
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* // setting cookies
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* $input->cookie->foo = 'bar';
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* $input->cookie->set('foo', 'bar'); // same as above
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* $input->cookie['foo'] = 'bar'; // same as above
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*
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* // setting cookies, with options
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* $input->cookie->set('foo', bar', 86400); // live for 1 day
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* $input->cookie->options('age', 3600); // any further set() cookies live for 1 hour (3600s)
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* $input->cookie->set('foo', 'bar'); // uses setting from above options() call
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*
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* // getting cookies
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* $bar = $input->cookie->foo;
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* $bar = $input->cookie['foo']; // same as above
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* $bar = $input->cookie('foo'); // same as above
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* $bar = $input->cookie->get('foo'); // same as above
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* $bar = $input->cookie->text('foo'); // sanitize with text() sanitizer
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*
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* // removing cookies
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* unset($input->cookie->foo);
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* $input->cookie->remove('foo'); // same as above
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* $input->cookie->set('foo', null); // same as above
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* $input->cookie->removeAll(); // remove all cookies
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*
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* // to modify default cookie settings, add this to your /site/config.php file and edit:
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* $config->cookieOptions = [
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*
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* // Max age of cookies in seconds or 0 to expire with session
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* // 3600=1 hour, 86400=1 day, 604800=1 week, 2592000=30 days, etc.
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* 'age' => 604800,
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*
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* // Cookie path/URL or null for PW installation’s root URL
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* 'path' => null,
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*
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* // Cookie domain: null for current hostname, true for all subdomains of current domain,
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* // domain.com for domain and all subdomains (same as true), www.domain.com for www subdomain
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* // and additional hosts off www subdomain (i.e. dev.www.domain.com)
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* 'domain' => null,
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*
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* // Transmit cookies only over secure HTTPS connection?
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* // Specify true, false, or null to auto-detect (uses true for cookies set when HTTPS).
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* 'secure' => null,
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*
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* // Cookie SameSite value: When set to “Lax” cookies are preserved on GET requests to this site
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* // originated from external links. May also be “Strict” or “None”. The 'secure' option is
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* // required for “None”. Default value is “Lax”. Available in PW 3.0.178+.
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* 'samesite' => 'Lax',
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*
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* // Make cookies accessible by HTTP (ProcessWire/PHP) only?
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* // When true, cookie is http/server-side only and not visible to client-side JS code.
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* 'httponly' => false,
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*
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* // If set cookie fails (perhaps due to output already sent),
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* // attempt to set at beginning of next request?
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* 'fallback' => true,
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* ];
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* ~~~~~
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*
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*
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* ProcessWire 3.x, Copyright 2023 by Ryan Cramer
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* https://processwire.com
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*
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*/
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class WireInputDataCookie extends WireInputData {
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/**
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* Are we initialized?
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*
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* @var bool
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*
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*/
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protected $init = false;
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/**
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* Default cookie options
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*
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* @var array
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*
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*/
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protected $defaultOptions = array(
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'age' => 0,
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'expire' => null,
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'path' => null,
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'domain' => null,
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'secure' => null,
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'httponly' => false,
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'samesite' => 'Lax',
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'fallback' => true,
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);
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/**
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* Cookie options specifically set at runtime
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*
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* @var array
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*
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*/
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protected $options = array();
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/**
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* Cookie names not allowed to be set or removed (i.e. session cookies)
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*
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* @var array
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*
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*/
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protected $skipCookies = array();
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/**
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* Construct
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*
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* @param array $input Associative array of variables to store
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* @param bool $lazy Use lazy loading?
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*
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*/
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public function __construct(&$input = array(), $lazy = false) {
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if($lazy) {} // lazy option not used by cookie
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parent::__construct($input, false);
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}
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/**
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* Initialize and set any pending cookies from previous request
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*
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* #pw-internal
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*
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* @since 3.0.141
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*
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*/
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public function init() {
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$this->init = true;
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$session = $this->wire()->session;
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$cookies = $session->getFor($this, '');
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if(!empty($cookies)) {
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$this->setArray($cookies);
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$session->removeAllFor($this);
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}
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}
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/**
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* Get or set cookie options
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*
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* - Omit all arguments to get current options.
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* - Specify string for $key (and omit $value) to get the value of one option.
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* - Specify both $key and $value arguments to set one option.
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* - Specify associative array for $key (and omit $value) to set multiple options.
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*
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* Options you can get or set:
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*
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* - `age` (int): Max age of cookies in seconds or 0 to expire with session. For example: 3600=1 hour, 86400=1 day,
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* 604800=1 week, 2592000=30 days, etc. (default=0, expire with session)
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* - `expire` (int|string): If you prefer to use an expiration date rather than the `age` option, specify a unix timestamp (int),
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* ISO-8601 date string, or any date string recognized by PHP’s strtotime(), like "2020-11-03" or +1 WEEK", etc. (default=null).
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* Please note the expire option was added in 3.0.159, previous versions should use the `age` option only.
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* - `path` (string|null): Cookie path/URL or null for PW installation’s root URL. (default=null)
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* - `secure` (bool|null): Transmit cookies only over secure HTTPS connection? Specify true or false, or use null to auto-detect,
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* which uses true for cookies set when HTTPS is detected. (default=null)
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* - `httponly` (bool): When true, cookie is visible to PHP/ProcessWire only and not visible to client-side JS code. (default=false)
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* - `fallback` (bool): If set cookie fails (perhaps due to output already sent), attempt to set at beginning of next request? (default=true)
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* - `domain` (string|bool|null): Cookie domain, specify one of the following: `null` or blank string for current hostname [default],
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* boolean `true` for all subdomains of current domain, `domain.com` for domain.com and *.domain.com [same as true], `www.domain.com`
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* for www subdomain and and hostnames off of it, like dev.www.domain.com. (default=null, current hostname)
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*
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* @param string|array|null $key
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* @param string|array|int|float|null $value
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* @return string|array|int|float|null|$this
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* @since 3.0.141
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*
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*/
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public function options($key = null, $value = null) {
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if($key === null) {
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// get all
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return $this->options;
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} else if(is_array($key) && $value === null) {
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// set multiple
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$this->options = array_merge($this->options, $key);
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} else if($value === null) {
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// get one
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return isset($this->options[$key]) ? $this->options[$key] : null;
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} else {
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// set one
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$this->options[$key] = $value;
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}
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return $this;
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}
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/**
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* Set a cookie (directly)
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*
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* To set options for setting cookie, use $input->cookie->options(key, value); or $config->cookieOptions(key, value);
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* Note that options set from $input->cookie->options take precedence over those set to $config.
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*
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* @param string $key Cookie name
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* @param array|float|int|null|string $value Cookie value
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*
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*/
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public function __set($key, $value) {
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if(!$this->init) {
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// initial set of existing cookies that are present from constructor
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parent::__set($key, $value);
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return;
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}
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$this->setCookie($key, $value, array());
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}
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/**
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* Get a cookie value
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*
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* Gets a previously set cookie value or null if cookie not present or expired.
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* Cookies are a type of user input, so always sanitize (and validate where appropriate) any values.
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*
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* ~~~~~
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* $val = $input->cookie->foo;
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* $val = $input->cookie->get('foo'); // same as above
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* $val = $input->cookie->text('foo'); // get and use text sanitizer
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* ~~~~~
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*
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* @param string $key Name of cookie to get
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* @param array|int|string $options Options not currently used, but available for descending classes or future use
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* @return string|int|float|array|null $value
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*
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*/
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public function get($key, $options = array()) {
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return parent::get($key, $options);
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}
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/**
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* Set a cookie (optionally with options)
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*
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* The defaults or previously set options from an `options()` method call are used for any `$options` not specified.
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*
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* ~~~~~
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* $input->cookie->foo = 'bar'; // set with default options (expires with session)
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* $input->cookie->set('foo', 'bar'); // same as above
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* $input->cookie->set('foo', bar', 86400); // expire after 86400 seconds (1 day)
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* $input->cookie->set('foo', 'bar', [ // set with options
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* 'age' => 86400,
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* 'path' => $page->url,
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* 'httponly' => true,
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* ]);
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* ~~~~~
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*
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* @param string $key Cookie name
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* @param string $value Cookie value
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* @param array|int|string $options Specify int for `age` option, string for `expire` option, or array for multiple options:
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* - `age` (int): Max age of cookies in seconds or 0 to expire with session. For example: 3600=1 hour, 86400=1 day,
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* 604800=1 week, 2592000=30 days, etc. (default=0, expire with session)
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* - `expire` (int|string): If you prefer to use an expiration date rather than the `age` option, specify a unix timestamp (int),
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* ISO-8601 date string, or any date string recognized by PHP’s strtotime(), like "2020-11-03" or +1 WEEK", etc. (default=null).
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* Please note the expire option was added in 3.0.159, previous versions should use the `age` option only.
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* - `path` (string|null): Cookie path/URL or null for PW installation’s root URL. (default=null)
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* - `secure` (bool|null): Transmit cookies only over secure HTTPS connection? Specify true or false, or use null to auto-detect,
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* which uses true for cookies set when HTTPS is detected. (default=null)
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* - `httponly` (bool): When true, cookie is visible to PHP/ProcessWire only and not visible to client-side JS code. (default=false)
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* - `fallback` (bool): If set cookie fails (perhaps due to output already sent), attempt to set at beginning of next request? (default=true)
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* - `domain` (string|bool|null): Cookie domain, specify one of the following: `null` or blank string for current hostname [default],
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* boolean `true` for all subdomains of current domain, `domain.com` for domain.com and *.domain.com [same as true], `www.domain.com`
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* for www subdomain and and hostnames off of it, like dev.www.domain.com. (default=null, current hostname)
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* @return $this
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* @since 3.0.141
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*
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*/
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public function set($key, $value, $options = array()) {
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if(!$this->init) {
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parent::__set($key, $value);
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return $this;
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}
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if(!is_array($options)) {
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if(is_int($options) || ctype_digit("$options")) {
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$age = (int) $options;
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$options = array('age' => $age);
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} else if(!empty($options) && is_string($options)) {
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$expire = $options;
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$options = array('expire' => $expire);
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} else {
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$options = array();
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}
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}
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$this->setCookie($key, $value, $options);
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return $this;
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}
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/**
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* Remove a cookie value by name
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*
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* @param string $key Name of cookie variable to remove value for
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* @return WireInputDataCookie|WireInputData|$this
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*
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*/
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public function remove($key) {
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return parent::remove($key);
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}
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/**
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* Remove all cookies (other than those required for current session)
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*
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* @return $this|WireInputData
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*
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*/
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public function removeAll() {
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foreach($this as $key => $value) {
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$this->offsetUnset($key);
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}
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return $this;
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}
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/**
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* Set a cookie with options and return success state
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*
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* This is the same as the `set()` mehod except for the following:
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*
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* - It returns a boolean (success state) rather than reference to $this.
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* - An $options array argument is required.
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* - It does not accept a max age in place of $options argument.
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*
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* #pw-internal
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|||
|
|
*
|
|||
|
|
* @param string $key Name of cookie to set
|
|||
|
|
* @param string|array|int|float $value Value to place in cookie
|
|||
|
|
* @param array $options Optionally override options from $config->cookieOptions and any previously set from an options() call:
|
|||
|
|
* - `age` (int): Max age of cookies in seconds or 0 to expire with session. For example: 3600=1 hour, 86400=1 day,
|
|||
|
|
* 604800=1 week, 2592000=30 days, etc. (default=0, expire with session)
|
|||
|
|
* - `expire` (int|string): If you prefer to use an expiration date rather than the `age` option, specify a unix timestamp (int),
|
|||
|
|
* ISO-8601 date string, or any date string recognized by PHP’s strtotime(), like "2020-11-03" or +1 WEEK", etc. (default=null).
|
|||
|
|
* Please note the expire option was added in 3.0.159, previous versions should use the `age` option only.
|
|||
|
|
* - `path` (string|null): Cookie path/URL or null for PW installation’s root URL. (default=null)
|
|||
|
|
* - `secure` (bool|null): Transmit cookies only over secure HTTPS connection? Specify true or false, or use null to auto-detect,
|
|||
|
|
* which uses true for cookies set when HTTPS is detected. (default=null)
|
|||
|
|
* - `samesite` (string): SameSite value, one of 'Lax' (default), 'Strict' or 'None'. (default='Lax') 3.0.178+
|
|||
|
|
* - `httponly` (bool): When true, cookie is visible to PHP/ProcessWire only and not visible to client-side JS code. (default=false)
|
|||
|
|
* - `fallback` (bool): If set cookie fails (perhaps due to output already sent), attempt to set at beginning of next request? (default=true)
|
|||
|
|
* - `domain` (string|bool|null): Cookie domain, specify one of the following: `null` or blank string for current hostname [default],
|
|||
|
|
* boolean `true` for all subdomains of current domain, `domain.com` for domain.com and *.domain.com [same as true], `www.domain.com`
|
|||
|
|
* for www subdomain and and hostnames off of it, like dev.www.domain.com. (default=null)
|
|||
|
|
* @return bool Returns true on success or false if cookie could not be set in this request and has been queued for next request
|
|||
|
|
* @since 3.0.159
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
public function setCookie($key, $value, array $options) {
|
|||
|
|
|
|||
|
|
$config = $this->wire()->config;
|
|||
|
|
$options = array_merge($this->defaultOptions, $config->cookieOptions, $this->options, $options);
|
|||
|
|
|
|||
|
|
$path = $options['path'] === null || $options['path'] === true ? $config->urls->root : $options['path'];
|
|||
|
|
$secure = $options['secure'] === null ? (bool) $config->https : (bool) $options['secure'];
|
|||
|
|
$httponly = (bool) $options['httponly'];
|
|||
|
|
$domain = $options['domain'];
|
|||
|
|
$remove = $value === null;
|
|||
|
|
$expires = null;
|
|||
|
|
$samesite = $options['samesite'] ? ucfirst(strtolower($options['samesite'])) : 'Lax';
|
|||
|
|
|
|||
|
|
if($samesite === 'None') {
|
|||
|
|
$secure = true;
|
|||
|
|
} else if(!in_array($samesite, array('Lax', 'Strict', 'None'), true)) {
|
|||
|
|
$samesite = 'Lax';
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if(!empty($options['expire'])) {
|
|||
|
|
if(is_string($options['expire']) && !ctype_digit($options['expire'])) {
|
|||
|
|
$expires = strtotime($options['expire']);
|
|||
|
|
} else {
|
|||
|
|
$expires = (int) $options['expire'];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if(empty($expires)) {
|
|||
|
|
$expires = $options['age'] ? time() + (int) $options['age'] : 0;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if(!$this->allowSetCookie($key)) return false;
|
|||
|
|
|
|||
|
|
// determine what to use for the domain argument
|
|||
|
|
if($domain === null) {
|
|||
|
|
// use current/origin http host only
|
|||
|
|
// http://www.faqs.org/rfcs/rfc6265.html - 4.1.2.3.
|
|||
|
|
// “If the server omits the Domain attribute, the user agent will return the cookie only to the origin server.”
|
|||
|
|
$domain = '';
|
|||
|
|
} else if($domain === true) {
|
|||
|
|
// allow all subdomains off current domain
|
|||
|
|
$parts = explode('.', $config->httpHost);
|
|||
|
|
$domain = count($parts) > 1 ? implode('.', array_slice($parts, -2)) : $config->httpHost;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// remove port from domain, as it is not compatible with setcookie()
|
|||
|
|
if(strpos($domain, ':') !== false) list($domain,) = explode(':', $domain, 2);
|
|||
|
|
|
|||
|
|
// check if cookie should be deleted
|
|||
|
|
if($remove) list($value, $expires) = array('', 1);
|
|||
|
|
|
|||
|
|
// set the cookie
|
|||
|
|
if(PHP_VERSION_ID < 70300) {
|
|||
|
|
$result = setcookie($key, $value, $expires, "$path; SameSite=$samesite", $domain, $secure, $httponly);
|
|||
|
|
} else {
|
|||
|
|
$result = setcookie($key, $value, array(
|
|||
|
|
'expires' => $expires,
|
|||
|
|
'path' => $path,
|
|||
|
|
'domain' => $domain,
|
|||
|
|
'secure' => $secure,
|
|||
|
|
'httponly' => $httponly,
|
|||
|
|
'samesite' => $samesite,
|
|||
|
|
));
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if($result === false && $options['fallback']) {
|
|||
|
|
// output must have already started, set at construct on next request
|
|||
|
|
$this->wire()->session->setFor($this, $key, $value);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if($remove) {
|
|||
|
|
parent::offsetUnset($key);
|
|||
|
|
unset($_COOKIE[$key]);
|
|||
|
|
} else {
|
|||
|
|
parent::__set($key, $value);
|
|||
|
|
$_COOKIE[$key] = $value;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return $result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Unset a cookie value
|
|||
|
|
*
|
|||
|
|
* #pw-internal
|
|||
|
|
*
|
|||
|
|
* @param mixed $key
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
#[\ReturnTypeWillChange]
|
|||
|
|
public function offsetUnset($key) {
|
|||
|
|
if(!$this->allowSetCookie($key)) return;
|
|||
|
|
parent::offsetUnset($key);
|
|||
|
|
$this->setCookie($key, null, array());
|
|||
|
|
unset($_COOKIE[$key]);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Allow cookie with given name to be set or unset?
|
|||
|
|
*
|
|||
|
|
* @param string $name
|
|||
|
|
* @return bool
|
|||
|
|
*
|
|||
|
|
*/
|
|||
|
|
protected function allowSetCookie($name) {
|
|||
|
|
if(empty($this->skipCookies)) $this->skipCookies = $this->wire()->session->getCookieNames();
|
|||
|
|
return in_array($name, $this->skipCookies) ? false : true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
|