894 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			894 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
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| /**
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|  * WPSEO plugin file.
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|  *
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|  * @package WPSEO\Internals\Options
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|  */
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| 
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| /**
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|  * This abstract class and it's concrete classes implement defaults and value validation for
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|  * all WPSEO options and subkeys within options.
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|  *
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|  * Some guidelines:
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|  * [Retrieving options]
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|  * - Use the normal get_option() to retrieve an option. You will receive a complete array for the option.
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|  *   Any subkeys which were not set, will have their default values in place.
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|  * - In other words, you will normally not have to check whether a subkey isset() as they will *always* be set.
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|  *   They will also *always* be of the correct variable type.
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|  *   The only exception to this are the options with variable option names based on post_type or taxonomy
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|  *   as those will not always be available before the taxonomy/post_type is registered.
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|  *   (they will be available if a value was set, they won't be if it wasn't as the class won't know
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|  *   that a default needs to be injected).
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|  *
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|  * [Updating/Adding options]
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|  * - For multisite site_options, please use the WPSEO_Options::update_site_option() method.
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|  * - For normal options, use the normal add/update_option() functions. As long a the classes here
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|  *   are instantiated, validation for all options and their subkeys will be automatic.
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|  * - On (succesfull) update of a couple of options, certain related actions will be run automatically.
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|  *   Some examples:
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|  *   - on change of wpseo[yoast_tracking], the cron schedule will be adjusted accordingly
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|  *   - on change of wpseo and wpseo_title, some caches will be cleared
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|  *
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|  * [Important information about add/updating/changing these classes]
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|  * - Make sure that option array key names are unique across options. The WPSEO_Options::get_all()
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|  *   method merges most options together. If any of them have non-unique names, even if they
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|  *   are in a different option, they *will* overwrite each other.
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|  * - When you add a new array key in an option: make sure you add proper defaults and add the key
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|  *   to the validation routine in the proper place or add a new validation case.
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|  *   You don't need to do any upgrading as any option returned will always be merged with the
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|  *   defaults, so new options will automatically be available.
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|  *   If the default value is a string which need translating, add this to the concrete class
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|  *   translate_defaults() method.
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|  * - When you remove an array key from an option: if it's important that the option is really removed,
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|  *   add the WPSEO_Option::clean_up( $option_name ) method to the upgrade run.
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|  *   This will re-save the option and automatically remove the array key no longer in existance.
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|  * - When you rename a sub-option: add it to the clean_option() routine and run that in the upgrade run.
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|  * - When you change the default for an option sub-key, make sure you verify that the validation routine will
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|  *   still work the way it should.
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|  *   Example: changing a default from '' (empty string) to 'text' with a validation routine with tests
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|  *   for an empty string will prevent a user from saving an empty string as the real value. So the
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|  *   test for '' with the validation routine would have to be removed in that case.
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|  * - If an option needs specific actions different from defined in this abstract class, you can just overrule
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|  *   a method by defining it in the concrete class.
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|  *
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|  * @todo [JRF => testers] Double check that validation will not cause errors when called
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|  *       from upgrade routine (some of the WP functions may not yet be available).
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|  */
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| abstract class WPSEO_Option {
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| 
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| 	/**
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| 	 * Prefix for override option keys that allow or disallow the option key of the same name.
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| 	 *
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| 	 * @var string
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| 	 */
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| 	const ALLOW_KEY_PREFIX = 'allow_';
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| 
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| 	/**
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| 	 * Option name - MUST be set in concrete class and set to public.
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| 	 *
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| 	 * @var string
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| 	 */
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| 	protected $option_name;
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| 
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| 	/**
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| 	 * Option group name for use in settings forms.
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| 	 *
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| 	 * Will be set automagically if not set in concrete class (i.e.
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| 	 * if it confirm to the normal pattern 'yoast' . $option_name . 'options',
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| 	 * only set in conrete class if it doesn't).
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| 	 *
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| 	 * @var string
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| 	 */
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| 	public $group_name;
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| 
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| 	/**
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| 	 * Whether to include the option in the return for WPSEO_Options::get_all().
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| 	 *
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| 	 * Also determines which options are copied over for ms_(re)set_blog().
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| 	 *
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| 	 * @var bool
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| 	 */
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| 	public $include_in_all = true;
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| 
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| 	/**
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| 	 * Whether this option is only for when the install is multisite.
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| 	 *
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| 	 * @var bool
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| 	 */
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| 	public $multisite_only = false;
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| 
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| 	/**
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| 	 * Array of defaults for the option - MUST be set in concrete class.
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| 	 *
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| 	 * Shouldn't be requested directly, use $this->get_defaults();
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| 	 *
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| 	 * @var array
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| 	 */
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| 	protected $defaults;
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| 
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| 	/**
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| 	 * Array of variable option name patterns for the option - if any -.
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| 	 *
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| 	 * Set this when the option contains array keys which vary based on post_type
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| 	 * or taxonomy.
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| 	 *
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| 	 * @var array
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| 	 */
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| 	protected $variable_array_key_patterns;
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| 
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| 	/**
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| 	 * Array of sub-options which should not be overloaded with multi-site defaults.
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| 	 *
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| 	 * @var array
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| 	 */
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| 	public $ms_exclude = [];
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| 
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| 	/**
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| 	 * Name for an option higher in the hierarchy to override setting access.
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| 	 *
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| 	 * @var string
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| 	 */
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| 	protected $override_option_name;
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| 
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| 	/**
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| 	 * Instance of this class.
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| 	 *
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| 	 * @var WPSEO_Option
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| 	 */
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| 	protected static $instance;
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| 
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| 
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| 	/* *********** INSTANTIATION METHODS *********** */
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| 
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| 	/**
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| 	 * Add all the actions and filters for the option.
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| 	 */
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| 	protected function __construct() {
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| 
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| 		/* Add filters which get applied to the get_options() results. */
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| 		$this->add_default_filters(); // Return defaults if option not set.
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| 		$this->add_option_filters(); // Merge with defaults if option *is* set.
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| 
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| 		if ( $this->multisite_only !== true ) {
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| 			/**
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| 			 * The option validation routines remove the default filters to prevent failing
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| 			 * to insert an option if it's new. Let's add them back afterwards.
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| 			 */
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| 			add_action( 'add_option', [ $this, 'add_default_filters_if_same_option' ] ); // Adding back after INSERT.
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| 
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| 			add_action( 'update_option', [ $this, 'add_default_filters_if_same_option' ] );
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| 
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| 			add_filter( 'pre_update_option', [ $this, 'add_default_filters_if_not_changed' ], PHP_INT_MAX, 3 );
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| 
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| 			// Refills the cache when the option has been updated.
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| 			add_action( 'update_option_' . $this->option_name, [ 'WPSEO_Options', 'clear_cache' ], 10 );
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| 		}
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| 		elseif ( is_multisite() ) {
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| 			/*
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| 			 * The option validation routines remove the default filters to prevent failing
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| 			 * to insert an option if it's new. Let's add them back afterwards.
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| 			 *
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| 			 * For site_options, this method is not foolproof as these actions are not fired
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| 			 * on an insert/update failure. Please use the WPSEO_Options::update_site_option() method
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| 			 * for updating site options to make sure the filters are in place.
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| 			 */
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| 			add_action( 'add_site_option_' . $this->option_name, [ $this, 'add_default_filters' ] );
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| 			add_action( 'update_site_option_' . $this->option_name, [ $this, 'add_default_filters' ] );
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| 			add_filter( 'pre_update_site_option_' . $this->option_name, [ $this, 'add_default_filters_if_not_changed' ], PHP_INT_MAX, 3 );
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| 
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| 			// Refills the cache when the option has been updated.
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| 			add_action( 'update_site_option_' . $this->option_name, [ 'WPSEO_Options', 'clear_cache' ], 1, 0 );
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| 		}
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| 
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| 		/*
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| 		 * Make sure the option will always get validated, independently of register_setting()
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| 		 * (only available on back-end).
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| 		 */
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| 		add_filter( 'sanitize_option_' . $this->option_name, [ $this, 'validate' ] );
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| 
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| 		// Flushes the rewrite rules when option is updated.
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| 		add_action( 'update_option_' . $this->option_name, [ 'WPSEO_Utils', 'clear_rewrites' ] );
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| 
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| 		/* Register our option for the admin pages */
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| 		add_action( 'admin_init', [ $this, 'register_setting' ] );
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| 
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| 		/* Set option group name if not given */
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| 		if ( ! isset( $this->group_name ) || $this->group_name === '' ) {
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| 			$this->group_name = 'yoast_' . $this->option_name . '_options';
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| 		}
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| 
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| 		/* Translate some defaults as early as possible - textdomain is loaded in init on priority 1. */
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| 		if ( method_exists( $this, 'translate_defaults' ) ) {
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| 			add_action( 'init', [ $this, 'translate_defaults' ], 2 );
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| 		}
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| 
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| 		/**
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| 		 * Enrich defaults once custom post types and taxonomies have been registered
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| 		 * which is normally done on the init action.
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| 		 *
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| 		 * @todo [JRF/testers] Verify that none of the options which are only available after
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| 		 * enrichment are used before the enriching.
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| 		 */
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| 		if ( method_exists( $this, 'enrich_defaults' ) ) {
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| 			add_action( 'init', [ $this, 'enrich_defaults' ], 99 );
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| 		}
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| 	}
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| 
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| 	/*
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| 	 * All concrete classes *must* contain the get_instance method.
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| 	 *
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| 	 * {@internal Unfortunately I can't define it as an abstract as it also *has* to be static...}}
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| 	 *
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| 	 * ```
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| 	 * abstract protected static function get_instance();
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| 	 * ```
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| 	 * ---------------
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| 	 *
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| 	 * Concrete classes *may* contain a translate_defaults method.
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| 	 * ```
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| 	 * abstract public function translate_defaults();
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| 	 * ```
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| 	 * ---------------
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| 	 *
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| 	 * Concrete classes *may* contain a enrich_defaults method to add additional defaults once
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| 	 * all post_types and taxonomies have been registered.
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| 	 *
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| 	 * ```
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| 	 * abstract public function enrich_defaults();
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| 	 * ```
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| 	 */
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| 
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| 	/* *********** METHODS INFLUENCING get_option() *********** */
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| 
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| 	/**
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| 	 * Add filters to make sure that the option default is returned if the option is not set.
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| 	 *
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| 	 * @return void
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| 	 */
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| 	public function add_default_filters() {
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| 		// Don't change, needs to check for false as could return prio 0 which would evaluate to false.
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| 		if ( has_filter( 'default_option_' . $this->option_name, [ $this, 'get_defaults' ] ) === false ) {
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| 			add_filter( 'default_option_' . $this->option_name, [ $this, 'get_defaults' ] );
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| 		}
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| 	}
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| 
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| 	/**
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| 	 * Adds back the default filters that were removed during validation if the option was changed.
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| 	 * Checks if this option was changed to prevent constantly checking if filters are present.
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| 	 *
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| 	 * @param string $option_name The option name.
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| 	 *
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| 	 * @return void
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| 	 */
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| 	public function add_default_filters_if_same_option( $option_name ) {
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| 		if ( $option_name === $this->option_name ) {
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| 			$this->add_default_filters();
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| 		}
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| 	}
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| 
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| 	/**
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| 	 * Adds back the default filters that were removed during validation if the option was not changed.
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| 	 * This is because in that case the latter actions are not called and thus the filters are never
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| 	 * added back.
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| 	 *
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| 	 * @param mixed  $value       The current value.
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| 	 * @param string $option_name The option name.
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| 	 * @param mixed  $old_value   The old value.
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| 	 *
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| 	 * @return string The current value.
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| 	 */
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| 	public function add_default_filters_if_not_changed( $value, $option_name, $old_value ) {
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| 		if ( $option_name !== $this->option_name ) {
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| 			return $value;
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| 		}
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| 
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| 		if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) {
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| 			$this->add_default_filters();
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| 		}
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| 
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| 		return $value;
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| 	}
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| 
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| 	/**
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| 	 * Validate webmaster tools & Pinterest verification strings.
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| 	 *
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| 	 * @param string $key   Key to check, by type of service.
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| 	 * @param array  $dirty Dirty data with the new values.
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| 	 * @param array  $old   Old data.
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| 	 * @param array  $clean Clean data by reference, normally the default values.
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| 	 */
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| 	public function validate_verification_string( $key, $dirty, $old, &$clean ) {
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| 		if ( isset( $dirty[ $key ] ) && $dirty[ $key ] !== '' ) {
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| 			$meta = $dirty[ $key ];
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| 			if ( strpos( $meta, 'content=' ) ) {
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| 				// Make sure we only have the real key, not a complete meta tag.
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| 				preg_match( '`content=([\'"])?([^\'"> ]+)(?:\1|[ />])`', $meta, $match );
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| 				if ( isset( $match[2] ) ) {
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| 					$meta = $match[2];
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| 				}
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| 				unset( $match );
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| 			}
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| 
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| 			$meta = sanitize_text_field( $meta );
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| 			if ( $meta !== '' ) {
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| 				$regex   = '`^[A-Fa-f0-9_-]+$`';
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| 				$service = '';
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| 
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| 				switch ( $key ) {
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| 					case 'baiduverify':
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| 						$regex   = '`^[A-Za-z0-9_-]+$`';
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| 						$service = 'Baidu Webmaster tools';
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| 						break;
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| 
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| 					case 'googleverify':
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| 						$regex   = '`^[A-Za-z0-9_-]+$`';
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| 						$service = 'Google Webmaster tools';
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| 						break;
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| 
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| 					case 'msverify':
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| 						$service = 'Bing Webmaster tools';
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| 						break;
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| 
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| 					case 'pinterestverify':
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| 						$service = 'Pinterest';
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| 						break;
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| 
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| 					case 'yandexverify':
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| 						$service = 'Yandex Webmaster tools';
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| 						break;
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| 				}
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| 
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| 				if ( preg_match( $regex, $meta ) ) {
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| 					$clean[ $key ] = $meta;
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| 				}
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| 				else {
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| 					// Restore the previous value, if any.
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| 					if ( isset( $old[ $key ] ) && preg_match( $regex, $old[ $key ] ) ) {
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| 						$clean[ $key ] = $old[ $key ];
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| 					}
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| 
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| 					if ( function_exists( 'add_settings_error' ) ) {
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| 						add_settings_error(
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| 							$this->group_name, // Slug title of the setting.
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| 							$key, // Suffix-ID for the error message box. WordPress prepends `setting-error-`.
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| 							/* translators: 1: Verification string from user input; 2: Service name. */
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| 							sprintf( __( '%1$s does not seem to be a valid %2$s verification string. Please correct.', 'wordpress-seo' ), '<strong>' . esc_html( $meta ) . '</strong>', $service ), // The error message.
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| 							'error' // CSS class for the WP notice, either the legacy 'error' / 'updated' or the new `notice-*` ones.
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| 						);
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| 					}
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| 
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| 					Yoast_Input_Validation::add_dirty_value_to_settings_errors( $key, $meta );
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| 				}
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| 			}
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| 		}
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| 	}
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| 
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| 	/**
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| 	 * Validates an option as a valid URL. Prints out a WordPress settings error
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| 	 * notice if the URL is invalid.
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| 	 *
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| 	 * @param string $key   Key to check, by type of URL setting.
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| 	 * @param array  $dirty Dirty data with the new values.
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| 	 * @param array  $old   Old data.
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| 	 * @param array  $clean Clean data by reference, normally the default values.
 | |
| 	 */
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| 	public function validate_url( $key, $dirty, $old, &$clean ) {
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| 		if ( isset( $dirty[ $key ] ) && $dirty[ $key ] !== '' ) {
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| 
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| 			$submitted_url = trim( $dirty[ $key ] );
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| 			$validated_url = filter_var( WPSEO_Utils::sanitize_url( $submitted_url ), FILTER_VALIDATE_URL );
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| 
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| 			if ( $validated_url === false ) {
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| 				if ( function_exists( 'add_settings_error' ) ) {
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| 					add_settings_error(
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| 						// Slug title of the setting.
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| 						$this->group_name,
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| 						// Suffix-ID for the error message box. WordPress prepends `setting-error-`.
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| 						$key,
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| 						// The error message.
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| 						sprintf(
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| 							/* translators: %s expands to an invalid URL. */
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| 							__( '%s does not seem to be a valid url. Please correct.', 'wordpress-seo' ),
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| 							'<strong>' . esc_url( $submitted_url ) . '</strong>'
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| 						),
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| 						// Message type.
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| 						'error'
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| 					);
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| 				}
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| 
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| 				// Restore the previous URL value, if any.
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| 				if ( isset( $old[ $key ] ) && $old[ $key ] !== '' ) {
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| 					$url = WPSEO_Utils::sanitize_url( $old[ $key ] );
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| 					if ( $url !== '' ) {
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| 						$clean[ $key ] = $url;
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| 					}
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| 				}
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| 
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| 				Yoast_Input_Validation::add_dirty_value_to_settings_errors( $key, $submitted_url );
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| 
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| 				return;
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| 			}
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| 
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| 			// The URL format is valid, let's sanitize it.
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| 			$url = WPSEO_Utils::sanitize_url( $validated_url );
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| 
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| 			if ( $url !== '' ) {
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| 				$clean[ $key ] = $url;
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| 			}
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| 		}
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| 	}
 | |
| 
 | |
| 	/**
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| 	 * Remove the default filters.
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| 	 * Called from the validate() method to prevent failure to add new options.
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| 	 *
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| 	 * @return void
 | |
| 	 */
 | |
| 	public function remove_default_filters() {
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| 		remove_filter( 'default_option_' . $this->option_name, [ $this, 'get_defaults' ] );
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| 	}
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| 
 | |
| 	/**
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| 	 * Get the enriched default value for an option.
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| 	 *
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| 	 * Checks if the concrete class contains an enrich_defaults() method and if so, runs it.
 | |
| 	 *
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| 	 * {@internal The enrich_defaults method is used to set defaults for variable array keys
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| 	 *            in an option, such as array keys depending on post_types and/or taxonomies.}}
 | |
| 	 *
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| 	 * @return array
 | |
| 	 */
 | |
| 	public function get_defaults() {
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| 		if ( method_exists( $this, 'translate_defaults' ) ) {
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| 			$this->translate_defaults();
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| 		}
 | |
| 
 | |
| 		if ( method_exists( $this, 'enrich_defaults' ) ) {
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| 			$this->enrich_defaults();
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| 		}
 | |
| 
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| 		return apply_filters( 'wpseo_defaults', $this->defaults, $this->option_name );
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| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Add filters to make sure that the option is merged with its defaults before being returned.
 | |
| 	 *
 | |
| 	 * @return void
 | |
| 	 */
 | |
| 	public function add_option_filters() {
 | |
| 		// Don't change, needs to check for false as could return prio 0 which would evaluate to false.
 | |
| 		if ( has_filter( 'option_' . $this->option_name, [ $this, 'get_option' ] ) === false ) {
 | |
| 			add_filter( 'option_' . $this->option_name, [ $this, 'get_option' ] );
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Remove the option filters.
 | |
| 	 * Called from the clean_up methods to make sure we retrieve the original old option.
 | |
| 	 *
 | |
| 	 * @return void
 | |
| 	 */
 | |
| 	public function remove_option_filters() {
 | |
| 		remove_filter( 'option_' . $this->option_name, [ $this, 'get_option' ] );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Merge an option with its default values.
 | |
| 	 *
 | |
| 	 * This method should *not* be called directly!!! It is only meant to filter the get_option() results.
 | |
| 	 *
 | |
| 	 * @param mixed $options Option value.
 | |
| 	 *
 | |
| 	 * @return mixed Option merged with the defaults for that option.
 | |
| 	 */
 | |
| 	public function get_option( $options = null ) {
 | |
| 		$filtered = $this->array_filter_merge( $options );
 | |
| 
 | |
| 		/*
 | |
| 		 * If the option contains variable option keys, make sure we don't remove those settings
 | |
| 		 * - even if the defaults are not complete yet.
 | |
| 		 * Unfortunately this means we also won't be removing the settings for post types or taxonomies
 | |
| 		 * which are no longer in the WP install, but rather that than the other way around.
 | |
| 		 */
 | |
| 		if ( isset( $this->variable_array_key_patterns ) ) {
 | |
| 			$filtered = $this->retain_variable_keys( $options, $filtered );
 | |
| 		}
 | |
| 
 | |
| 		return $filtered;
 | |
| 	}
 | |
| 
 | |
| 	/* *********** METHODS influencing add_uption(), update_option() and saving from admin pages. *********** */
 | |
| 
 | |
| 	/**
 | |
| 	 * Register (whitelist) the option for the configuration pages.
 | |
| 	 * The validation callback is already registered separately on the sanitize_option hook,
 | |
| 	 * so no need to double register.
 | |
| 	 *
 | |
| 	 * @return void
 | |
| 	 */
 | |
| 	public function register_setting() {
 | |
| 		if ( ! WPSEO_Capability_Utils::current_user_can( 'wpseo_manage_options' ) ) {
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		if ( $this->multisite_only === true ) {
 | |
| 			$network_settings_api = Yoast_Network_Settings_API::get();
 | |
| 			if ( $network_settings_api->meets_requirements() ) {
 | |
| 				$network_settings_api->register_setting( $this->group_name, $this->option_name );
 | |
| 			}
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		register_setting( $this->group_name, $this->option_name );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Validate the option
 | |
| 	 *
 | |
| 	 * @param mixed $option_value The unvalidated new value for the option.
 | |
| 	 *
 | |
| 	 * @return array Validated new value for the option.
 | |
| 	 */
 | |
| 	public function validate( $option_value ) {
 | |
| 		$clean = $this->get_defaults();
 | |
| 
 | |
| 		/* Return the defaults if the new value is empty. */
 | |
| 		if ( ! is_array( $option_value ) || $option_value === [] ) {
 | |
| 			return $clean;
 | |
| 		}
 | |
| 
 | |
| 		$option_value = array_map( [ 'WPSEO_Utils', 'trim_recursive' ], $option_value );
 | |
| 
 | |
| 		$old = $this->get_original_option();
 | |
| 		if ( ! is_array( $old ) ) {
 | |
| 			$old = [];
 | |
| 		}
 | |
| 		$old = array_merge( $clean, $old );
 | |
| 
 | |
| 		$clean = $this->validate_option( $option_value, $clean, $old );
 | |
| 
 | |
| 		// Prevent updates to variables that are disabled via the override option.
 | |
| 		$clean = $this->prevent_disabled_options_update( $clean, $old );
 | |
| 
 | |
| 		/* Retain the values for variable array keys even when the post type/taxonomy is not yet registered. */
 | |
| 		if ( isset( $this->variable_array_key_patterns ) ) {
 | |
| 			$clean = $this->retain_variable_keys( $option_value, $clean );
 | |
| 		}
 | |
| 
 | |
| 		$this->remove_default_filters();
 | |
| 
 | |
| 		return $clean;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks whether a specific option key is disabled.
 | |
| 	 *
 | |
| 	 * This is determined by whether an override option is available with a key that equals the given key prefixed
 | |
| 	 * with 'allow_'.
 | |
| 	 *
 | |
| 	 * @param string $key Option key.
 | |
| 	 *
 | |
| 	 * @return bool True if option key is disabled, false otherwise.
 | |
| 	 */
 | |
| 	public function is_disabled( $key ) {
 | |
| 		$override_option = $this->get_override_option();
 | |
| 		if ( empty( $override_option ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		return isset( $override_option[ self::ALLOW_KEY_PREFIX . $key ] ) && ! $override_option[ self::ALLOW_KEY_PREFIX . $key ];
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * All concrete classes must contain a validate_option() method which validates all
 | |
| 	 * values within the option.
 | |
| 	 *
 | |
| 	 * @param array $dirty New value for the option.
 | |
| 	 * @param array $clean Clean value for the option, normally the defaults.
 | |
| 	 * @param array $old   Old value of the option.
 | |
| 	 */
 | |
| 	abstract protected function validate_option( $dirty, $clean, $old );
 | |
| 
 | |
| 	/* *********** METHODS for ADDING/UPDATING/UPGRADING the option. *********** */
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieve the real old value (unmerged with defaults).
 | |
| 	 *
 | |
| 	 * @return array|bool The original option value (which can be false if the option doesn't exist).
 | |
| 	 */
 | |
| 	protected function get_original_option() {
 | |
| 		$this->remove_default_filters();
 | |
| 		$this->remove_option_filters();
 | |
| 
 | |
| 		// Get (unvalidated) array, NOT merged with defaults.
 | |
| 		if ( $this->multisite_only !== true ) {
 | |
| 			$option_value = get_option( $this->option_name );
 | |
| 		}
 | |
| 		else {
 | |
| 			$option_value = get_site_option( $this->option_name );
 | |
| 		}
 | |
| 
 | |
| 		$this->add_option_filters();
 | |
| 		$this->add_default_filters();
 | |
| 
 | |
| 		return $option_value;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Add the option if it doesn't exist for some strange reason.
 | |
| 	 *
 | |
| 	 * @uses WPSEO_Option::get_original_option()
 | |
| 	 *
 | |
| 	 * @return void
 | |
| 	 */
 | |
| 	public function maybe_add_option() {
 | |
| 		if ( $this->get_original_option() === false ) {
 | |
| 			if ( $this->multisite_only !== true ) {
 | |
| 				update_option( $this->option_name, $this->get_defaults() );
 | |
| 			}
 | |
| 			else {
 | |
| 				$this->update_site_option( $this->get_defaults() );
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Update a site_option.
 | |
| 	 *
 | |
| 	 * {@internal This special method is only needed for multisite options, but very needed indeed there.
 | |
| 	 *            The order in which certain functions and hooks are run is different between
 | |
| 	 *            get_option() and get_site_option() which means in practice that the removing
 | |
| 	 *            of the default filters would be done too late and the re-adding of the default
 | |
| 	 *            filters might not be done at all.
 | |
| 	 *            Aka: use the WPSEO_Options::update_site_option() method (which calls this method)
 | |
| 	 *            for safely adding/updating multisite options.}}
 | |
| 	 *
 | |
| 	 * @param mixed $value The new value for the option.
 | |
| 	 *
 | |
| 	 * @return bool Whether the update was succesfull.
 | |
| 	 */
 | |
| 	public function update_site_option( $value ) {
 | |
| 		if ( $this->multisite_only === true && is_multisite() ) {
 | |
| 			$this->remove_default_filters();
 | |
| 			$result = update_site_option( $this->option_name, $value );
 | |
| 			$this->add_default_filters();
 | |
| 
 | |
| 			return $result;
 | |
| 		}
 | |
| 		else {
 | |
| 			return false;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieve the real old value (unmerged with defaults), clean and re-save the option.
 | |
| 	 *
 | |
| 	 * @uses WPSEO_Option::get_original_option()
 | |
| 	 * @uses WPSEO_Option::import()
 | |
| 	 *
 | |
| 	 * @param string|null $current_version Optional. Version from which to upgrade, if not set,
 | |
| 	 *                                     version specific upgrades will be disregarded.
 | |
| 	 *
 | |
| 	 * @return void
 | |
| 	 */
 | |
| 	public function clean( $current_version = null ) {
 | |
| 		$option_value = $this->get_original_option();
 | |
| 		$this->import( $option_value, $current_version );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Clean and re-save the option.
 | |
| 	 *
 | |
| 	 * @uses clean_option() method from concrete class if it exists.
 | |
| 	 *
 | |
| 	 * @todo [JRF/whomever] Figure out a way to show settings error during/after the upgrade - maybe
 | |
| 	 * something along the lines of:
 | |
| 	 * -> add them to a property in this class
 | |
| 	 * -> if that property isset at the end of the routine and add_settings_error function does not exist,
 | |
| 	 *    save as transient (or update the transient if one already exists)
 | |
| 	 * -> next time an admin is in the WP back-end, show the errors and delete the transient or only delete it
 | |
| 	 *    once the admin has dismissed the message (add ajax function)
 | |
| 	 * Important: all validation routines which add_settings_errors would need to be changed for this to work
 | |
| 	 *
 | |
| 	 * @param array       $option_value          Option value to be imported.
 | |
| 	 * @param string|null $current_version       Optional. Version from which to upgrade, if not set,
 | |
| 	 *                                           version specific upgrades will be disregarded.
 | |
| 	 * @param array|null  $all_old_option_values Optional. Only used when importing old options to
 | |
| 	 *                                           have access to the real old values, in contrast to
 | |
| 	 *                                           the saved ones.
 | |
| 	 *
 | |
| 	 * @return void
 | |
| 	 */
 | |
| 	public function import( $option_value, $current_version = null, $all_old_option_values = null ) {
 | |
| 		if ( $option_value === false ) {
 | |
| 			$option_value = $this->get_defaults();
 | |
| 		}
 | |
| 		elseif ( is_array( $option_value ) && method_exists( $this, 'clean_option' ) ) {
 | |
| 			$option_value = $this->clean_option( $option_value, $current_version, $all_old_option_values );
 | |
| 		}
 | |
| 
 | |
| 		/*
 | |
| 		 * Save the cleaned value - validation will take care of cleaning out array keys which
 | |
| 		 * should no longer be there.
 | |
| 		 */
 | |
| 		if ( $this->multisite_only !== true ) {
 | |
| 			update_option( $this->option_name, $option_value );
 | |
| 		}
 | |
| 		else {
 | |
| 			$this->update_site_option( $this->option_name, $option_value );
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Returns the variable array key patterns for an options class.
 | |
| 	 *
 | |
| 	 * @return array
 | |
| 	 */
 | |
| 	public function get_patterns() {
 | |
| 		return (array) $this->variable_array_key_patterns;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieves the option name.
 | |
| 	 *
 | |
| 	 * @return string The set option name.
 | |
| 	 */
 | |
| 	public function get_option_name() {
 | |
| 		return $this->option_name;
 | |
| 	}
 | |
| 
 | |
| 	/*
 | |
| 	 * Concrete classes *may* contain a clean_option method which will clean out old/renamed
 | |
| 	 * values within the option.
 | |
| 	 *
 | |
| 	 * ```
 | |
| 	 * abstract public function clean_option( $option_value, $current_version = null, $all_old_option_values = null );
 | |
| 	 * ```
 | |
| 	 */
 | |
| 
 | |
| 	/* *********** HELPER METHODS for internal use. *********** */
 | |
| 
 | |
| 	/**
 | |
| 	 * Helper method - Combines a fixed array of default values with an options array
 | |
| 	 * while filtering out any keys which are not in the defaults array.
 | |
| 	 *
 | |
| 	 * @todo [JRF] - shouldn't this be a straight array merge ? at the end of the day, the validation
 | |
| 	 * removes any invalid keys on save.
 | |
| 	 *
 | |
| 	 * @param array|null $options Optional. Current options. If not set, the option defaults
 | |
| 	 *                            for the $option_key will be returned.
 | |
| 	 *
 | |
| 	 * @return array Combined and filtered options array.
 | |
| 	 */
 | |
| 	protected function array_filter_merge( $options = null ) {
 | |
| 
 | |
| 		$defaults = $this->get_defaults();
 | |
| 
 | |
| 		if ( ! isset( $options ) || $options === false || $options === [] ) {
 | |
| 			return $defaults;
 | |
| 		}
 | |
| 
 | |
| 		$options = (array) $options;
 | |
| 
 | |
| 		/*
 | |
| 			$filtered = array();
 | |
| 
 | |
| 			if ( $defaults !== array() ) {
 | |
| 				foreach ( $defaults as $key => $default_value ) {
 | |
| 					// @todo should this walk through array subkeys ?
 | |
| 					$filtered[ $key ] = ( isset( $options[ $key ] ) ? $options[ $key ] : $default_value );
 | |
| 				}
 | |
| 			}
 | |
| 		*/
 | |
| 		$filtered = array_merge( $defaults, $options );
 | |
| 
 | |
| 		return $filtered;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Sets updated values for variables that are disabled via the override option back to their previous values.
 | |
| 	 *
 | |
| 	 * @param array $updated Updated option value.
 | |
| 	 * @param array $old     Old option value.
 | |
| 	 *
 | |
| 	 * @return array Updated option value, with all disabled variables set to their old values.
 | |
| 	 */
 | |
| 	protected function prevent_disabled_options_update( $updated, $old ) {
 | |
| 		$override_option = $this->get_override_option();
 | |
| 		if ( empty( $override_option ) ) {
 | |
| 			return $updated;
 | |
| 		}
 | |
| 
 | |
| 		/*
 | |
| 		 * This loop could as well call `is_disabled( $key )` for each iteration,
 | |
| 		 * however this would be worse performance-wise.
 | |
| 		 */
 | |
| 		foreach ( $old as $key => $value ) {
 | |
| 			if ( isset( $override_option[ self::ALLOW_KEY_PREFIX . $key ] ) && ! $override_option[ self::ALLOW_KEY_PREFIX . $key ] ) {
 | |
| 				$updated[ $key ] = $old[ $key ];
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		return $updated;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieves the value of the override option, if available.
 | |
| 	 *
 | |
| 	 * An override option contains values that may determine access to certain sub-variables
 | |
| 	 * of this option.
 | |
| 	 *
 | |
| 	 * Only regular options in multisite can have override options, which in that case
 | |
| 	 * would be network options.
 | |
| 	 *
 | |
| 	 * @return array Override option value, or empty array if unavailable.
 | |
| 	 */
 | |
| 	protected function get_override_option() {
 | |
| 		if ( empty( $this->override_option_name ) || $this->multisite_only === true || ! is_multisite() ) {
 | |
| 			return [];
 | |
| 		}
 | |
| 
 | |
| 		return get_site_option( $this->override_option_name, [] );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Make sure that any set option values relating to post_types and/or taxonomies are retained,
 | |
| 	 * even when that post_type or taxonomy may not yet have been registered.
 | |
| 	 *
 | |
| 	 * {@internal The wpseo_titles concrete class overrules this method. Make sure that any
 | |
| 	 *            changes applied here, also get ported to that version.}}
 | |
| 	 *
 | |
| 	 * @param array $dirty Original option as retrieved from the database.
 | |
| 	 * @param array $clean Filtered option where any options which shouldn't be in our option
 | |
| 	 *                     have already been removed and any options which weren't set
 | |
| 	 *                     have been set to their defaults.
 | |
| 	 *
 | |
| 	 * @return array
 | |
| 	 */
 | |
| 	protected function retain_variable_keys( $dirty, $clean ) {
 | |
| 		if ( ( is_array( $this->variable_array_key_patterns ) && $this->variable_array_key_patterns !== [] ) && ( is_array( $dirty ) && $dirty !== [] ) ) {
 | |
| 			foreach ( $dirty as $key => $value ) {
 | |
| 
 | |
| 				// Do nothing if already in filtered options.
 | |
| 				if ( isset( $clean[ $key ] ) ) {
 | |
| 					continue;
 | |
| 				}
 | |
| 
 | |
| 				foreach ( $this->variable_array_key_patterns as $pattern ) {
 | |
| 
 | |
| 					if ( strpos( $key, $pattern ) === 0 ) {
 | |
| 						$clean[ $key ] = $value;
 | |
| 						break;
 | |
| 					}
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		return $clean;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check whether a given array key conforms to one of the variable array key patterns for this option.
 | |
| 	 *
 | |
| 	 * @usedby validate_option() methods for options with variable array keys.
 | |
| 	 *
 | |
| 	 * @param string $key Array key to check.
 | |
| 	 *
 | |
| 	 * @return string Pattern if it conforms, original array key if it doesn't or if the option
 | |
| 	 *                does not have variable array keys.
 | |
| 	 */
 | |
| 	protected function get_switch_key( $key ) {
 | |
| 		if ( ! isset( $this->variable_array_key_patterns ) || ( ! is_array( $this->variable_array_key_patterns ) || $this->variable_array_key_patterns === [] ) ) {
 | |
| 			return $key;
 | |
| 		}
 | |
| 
 | |
| 		foreach ( $this->variable_array_key_patterns as $pattern ) {
 | |
| 			if ( strpos( $key, $pattern ) === 0 ) {
 | |
| 				return $pattern;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		return $key;
 | |
| 	}
 | |
| }
 |