1125 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			1125 lines
		
	
	
		
			29 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| /**
 | |
|  * WPSEO plugin file.
 | |
|  *
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|  * @package WPSEO\Internals
 | |
|  * @since   1.8.0
 | |
|  */
 | |
| 
 | |
| use Yoast\WP\SEO\Integrations\Feature_Flag_Integration;
 | |
| 
 | |
| /**
 | |
|  * Group of utility methods for use by WPSEO.
 | |
|  * All methods are static, this is just a sort of namespacing class wrapper.
 | |
|  */
 | |
| class WPSEO_Utils {
 | |
| 
 | |
| 	/**
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| 	 * Whether the PHP filter extension is enabled.
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| 	 *
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| 	 * @since 1.8.0
 | |
| 	 *
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| 	 * @var bool
 | |
| 	 */
 | |
| 	public static $has_filters;
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| 
 | |
| 	/**
 | |
| 	 * Check whether file editing is allowed for the .htaccess and robots.txt files.
 | |
| 	 *
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| 	 * {@internal current_user_can() checks internally whether a user is on wp-ms and adjusts accordingly.}}
 | |
| 	 *
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| 	 * @since 1.8.0
 | |
| 	 *
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| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function allow_system_file_edit() {
 | |
| 		$allowed = true;
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| 
 | |
| 		if ( current_user_can( 'edit_files' ) === false ) {
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| 			$allowed = false;
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| 		}
 | |
| 
 | |
| 		/**
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| 		 * Filter: 'wpseo_allow_system_file_edit' - Allow developers to change whether the editing of
 | |
| 		 * .htaccess and robots.txt is allowed.
 | |
| 		 *
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| 		 * @api bool $allowed Whether file editing is allowed.
 | |
| 		 */
 | |
| 		return apply_filters( 'wpseo_allow_system_file_edit', $allowed );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check if the web server is running on Apache or compatible (LiteSpeed).
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_apache() {
 | |
| 		if ( ! isset( $_SERVER['SERVER_SOFTWARE'] ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		$software = sanitize_text_field( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) );
 | |
| 
 | |
| 		return stripos( $software, 'apache' ) !== false || stripos( $software, 'litespeed' ) !== false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check if the web server is running on Nginx.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_nginx() {
 | |
| 		if ( ! isset( $_SERVER['SERVER_SOFTWARE'] ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		$software = sanitize_text_field( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) );
 | |
| 
 | |
| 		return stripos( $software, 'nginx' ) !== false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check whether a url is relative.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param string $url URL string to check.
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_url_relative( $url ) {
 | |
| 		return YoastSEO()->helpers->url->is_relative( $url );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Recursively trim whitespace round a string value or of string values within an array.
 | |
| 	 * Only trims strings to avoid typecasting a variable (to string).
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param mixed $value Value to trim or array of values to trim.
 | |
| 	 *
 | |
| 	 * @return mixed Trimmed value or array of trimmed values.
 | |
| 	 */
 | |
| 	public static function trim_recursive( $value ) {
 | |
| 		if ( is_string( $value ) ) {
 | |
| 			$value = trim( $value );
 | |
| 		}
 | |
| 		elseif ( is_array( $value ) ) {
 | |
| 			$value = array_map( [ __CLASS__, 'trim_recursive' ], $value );
 | |
| 		}
 | |
| 
 | |
| 		return $value;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Emulate the WP native sanitize_text_field function in a %%variable%% safe way.
 | |
| 	 *
 | |
| 	 * Sanitize a string from user input or from the db.
 | |
| 	 *
 | |
| 	 * - Check for invalid UTF-8;
 | |
| 	 * - Convert single < characters to entity;
 | |
| 	 * - Strip all tags;
 | |
| 	 * - Remove line breaks, tabs and extra white space;
 | |
| 	 * - Strip octets - BUT DO NOT REMOVE (part of) VARIABLES WHICH WILL BE REPLACED.
 | |
| 	 *
 | |
| 	 * @link https://core.trac.wordpress.org/browser/trunk/src/wp-includes/formatting.php for the original.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param string $value String value to sanitize.
 | |
| 	 *
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public static function sanitize_text_field( $value ) {
 | |
| 		$filtered = wp_check_invalid_utf8( $value );
 | |
| 
 | |
| 		if ( strpos( $filtered, '<' ) !== false ) {
 | |
| 			$filtered = wp_pre_kses_less_than( $filtered );
 | |
| 			// This will strip extra whitespace for us.
 | |
| 			$filtered = wp_strip_all_tags( $filtered, true );
 | |
| 		}
 | |
| 		else {
 | |
| 			$filtered = trim( preg_replace( '`[\r\n\t ]+`', ' ', $filtered ) );
 | |
| 		}
 | |
| 
 | |
| 		$found = false;
 | |
| 		while ( preg_match( '`[^%](%[a-f0-9]{2})`i', $filtered, $match ) ) {
 | |
| 			$filtered = str_replace( $match[1], '', $filtered );
 | |
| 			$found    = true;
 | |
| 		}
 | |
| 		unset( $match );
 | |
| 
 | |
| 		if ( $found ) {
 | |
| 			// Strip out the whitespace that may now exist after removing the octets.
 | |
| 			$filtered = trim( preg_replace( '` +`', ' ', $filtered ) );
 | |
| 		}
 | |
| 
 | |
| 		/**
 | |
| 		 * Filter a sanitized text field string.
 | |
| 		 *
 | |
| 		 * @since WP 2.9.0
 | |
| 		 *
 | |
| 		 * @param string $filtered The sanitized string.
 | |
| 		 * @param string $str      The string prior to being sanitized.
 | |
| 		 */
 | |
| 		return apply_filters( 'sanitize_text_field', $filtered, $value ); // phpcs:ignore WordPress.NamingConventions.PrefixAllGlobals -- Using WP native filter.
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Sanitize a url for saving to the database.
 | |
| 	 * Not to be confused with the old native WP function.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param string $value             String URL value to sanitize.
 | |
| 	 * @param array  $allowed_protocols Optional set of allowed protocols.
 | |
| 	 *
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public static function sanitize_url( $value, $allowed_protocols = [ 'http', 'https' ] ) {
 | |
| 
 | |
| 		$url   = '';
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| 		$parts = wp_parse_url( $value );
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| 
 | |
| 		if ( isset( $parts['scheme'], $parts['host'] ) ) {
 | |
| 			$url = $parts['scheme'] . '://';
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| 
 | |
| 			if ( isset( $parts['user'] ) ) {
 | |
| 				$url .= rawurlencode( $parts['user'] );
 | |
| 				$url .= isset( $parts['pass'] ) ? ':' . rawurlencode( $parts['pass'] ) : '';
 | |
| 				$url .= '@';
 | |
| 			}
 | |
| 
 | |
| 			$parts['host'] = preg_replace(
 | |
| 				'`[^a-z0-9-.:\[\]\\x80-\\xff]`',
 | |
| 				'',
 | |
| 				strtolower( $parts['host'] )
 | |
| 			);
 | |
| 
 | |
| 			$url .= $parts['host'] . ( isset( $parts['port'] ) ? ':' . intval( $parts['port'] ) : '' );
 | |
| 		}
 | |
| 
 | |
| 		if ( isset( $parts['path'] ) && strpos( $parts['path'], '/' ) === 0 ) {
 | |
| 			$path = explode( '/', wp_strip_all_tags( $parts['path'] ) );
 | |
| 			$path = self::sanitize_encoded_text_field( $path );
 | |
| 			$url .= str_replace( '%40', '@', implode( '/', $path ) );
 | |
| 		}
 | |
| 
 | |
| 		if ( ! $url ) {
 | |
| 			return '';
 | |
| 		}
 | |
| 
 | |
| 		if ( isset( $parts['query'] ) ) {
 | |
| 			wp_parse_str( $parts['query'], $parsed_query );
 | |
| 
 | |
| 			$parsed_query = array_combine(
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| 				self::sanitize_encoded_text_field( array_keys( $parsed_query ) ),
 | |
| 				self::sanitize_encoded_text_field( array_values( $parsed_query ) )
 | |
| 			);
 | |
| 
 | |
| 			$url = add_query_arg( $parsed_query, $url );
 | |
| 		}
 | |
| 
 | |
| 		if ( isset( $parts['fragment'] ) ) {
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| 			$url .= '#' . self::sanitize_encoded_text_field( $parts['fragment'] );
 | |
| 		}
 | |
| 
 | |
| 		if ( strpos( $url, '%' ) !== false ) {
 | |
| 			$url = preg_replace_callback(
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| 				'`%[a-fA-F0-9]{2}`',
 | |
| 				static function( $octects ) {
 | |
| 					return strtolower( $octects[0] );
 | |
| 				},
 | |
| 				$url
 | |
| 			);
 | |
| 		}
 | |
| 
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| 		return esc_url_raw( $url, $allowed_protocols );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Decode, sanitize and encode the array of strings or the string.
 | |
| 	 *
 | |
| 	 * @since 13.3
 | |
| 	 *
 | |
| 	 * @param array|string $value The value to sanitize and encode.
 | |
| 	 *
 | |
| 	 * @return array|string The sanitized value.
 | |
| 	 */
 | |
| 	public static function sanitize_encoded_text_field( $value ) {
 | |
| 		if ( is_array( $value ) ) {
 | |
| 			return array_map( [ __CLASS__, 'sanitize_encoded_text_field' ], $value );
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| 		}
 | |
| 
 | |
| 		return rawurlencode( sanitize_text_field( rawurldecode( $value ) ) );
 | |
| 	}
 | |
| 
 | |
| 	/**
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| 	 * Validate a value as boolean.
 | |
| 	 *
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| 	 * @since 1.8.0
 | |
| 	 *
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| 	 * @param mixed $value Value to validate.
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function validate_bool( $value ) {
 | |
| 		if ( ! isset( self::$has_filters ) ) {
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| 			self::$has_filters = extension_loaded( 'filter' );
 | |
| 		}
 | |
| 
 | |
| 		if ( self::$has_filters ) {
 | |
| 			return filter_var( $value, FILTER_VALIDATE_BOOLEAN );
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| 		}
 | |
| 		else {
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| 			return self::emulate_filter_bool( $value );
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Cast a value to bool.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param mixed $value Value to cast.
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function emulate_filter_bool( $value ) {
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| 		$true  = [
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| 			'1',
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| 			'true',
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| 			'True',
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| 			'TRUE',
 | |
| 			'y',
 | |
| 			'Y',
 | |
| 			'yes',
 | |
| 			'Yes',
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| 			'YES',
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| 			'on',
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| 			'On',
 | |
| 			'ON',
 | |
| 		];
 | |
| 		$false = [
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| 			'0',
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| 			'false',
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| 			'False',
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| 			'FALSE',
 | |
| 			'n',
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| 			'N',
 | |
| 			'no',
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| 			'No',
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| 			'NO',
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| 			'off',
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| 			'Off',
 | |
| 			'OFF',
 | |
| 		];
 | |
| 
 | |
| 		if ( is_bool( $value ) ) {
 | |
| 			return $value;
 | |
| 		}
 | |
| 		elseif ( is_int( $value ) && ( $value === 0 || $value === 1 ) ) {
 | |
| 			return (bool) $value;
 | |
| 		}
 | |
| 		elseif ( ( is_float( $value ) && ! is_nan( $value ) ) && ( $value === (float) 0 || $value === (float) 1 ) ) {
 | |
| 			return (bool) $value;
 | |
| 		}
 | |
| 		elseif ( is_string( $value ) ) {
 | |
| 			$value = trim( $value );
 | |
| 			if ( in_array( $value, $true, true ) ) {
 | |
| 				return true;
 | |
| 			}
 | |
| 			elseif ( in_array( $value, $false, true ) ) {
 | |
| 				return false;
 | |
| 			}
 | |
| 			else {
 | |
| 				return false;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Validate a value as integer.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param mixed $value Value to validate.
 | |
| 	 *
 | |
| 	 * @return int|bool Int or false in case of failure to convert to int.
 | |
| 	 */
 | |
| 	public static function validate_int( $value ) {
 | |
| 		if ( ! isset( self::$has_filters ) ) {
 | |
| 			self::$has_filters = extension_loaded( 'filter' );
 | |
| 		}
 | |
| 
 | |
| 		if ( self::$has_filters ) {
 | |
| 			return filter_var( $value, FILTER_VALIDATE_INT );
 | |
| 		}
 | |
| 		else {
 | |
| 			return self::emulate_filter_int( $value );
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Cast a value to integer.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 *
 | |
| 	 * @param mixed $value Value to cast.
 | |
| 	 *
 | |
| 	 * @return int|bool
 | |
| 	 */
 | |
| 	public static function emulate_filter_int( $value ) {
 | |
| 		if ( is_int( $value ) ) {
 | |
| 			return $value;
 | |
| 		}
 | |
| 		elseif ( is_float( $value ) ) {
 | |
| 			// phpcs:ignore WordPress.PHP.StrictComparisons -- Purposeful loose comparison.
 | |
| 			if ( (int) $value == $value && ! is_nan( $value ) ) {
 | |
| 				return (int) $value;
 | |
| 			}
 | |
| 			else {
 | |
| 				return false;
 | |
| 			}
 | |
| 		}
 | |
| 		elseif ( is_string( $value ) ) {
 | |
| 			$value = trim( $value );
 | |
| 			if ( $value === '' ) {
 | |
| 				return false;
 | |
| 			}
 | |
| 			elseif ( ctype_digit( $value ) ) {
 | |
| 				return (int) $value;
 | |
| 			}
 | |
| 			elseif ( strpos( $value, '-' ) === 0 && ctype_digit( substr( $value, 1 ) ) ) {
 | |
| 				return (int) $value;
 | |
| 			}
 | |
| 			else {
 | |
| 				return false;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Clears the WP or W3TC cache depending on which is used.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 */
 | |
| 	public static function clear_cache() {
 | |
| 		if ( function_exists( 'w3tc_pgcache_flush' ) ) {
 | |
| 			w3tc_pgcache_flush();
 | |
| 		}
 | |
| 		elseif ( function_exists( 'wp_cache_clear_cache' ) ) {
 | |
| 			wp_cache_clear_cache();
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Clear rewrite rules.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 */
 | |
| 	public static function clear_rewrites() {
 | |
| 		update_option( 'rewrite_rules', '' );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Do simple reliable math calculations without the risk of wrong results.
 | |
| 	 *
 | |
| 	 * In the rare case that the bcmath extension would not be loaded, it will return the normal calculation results.
 | |
| 	 *
 | |
| 	 * @link http://floating-point-gui.de/
 | |
| 	 * @link http://php.net/language.types.float.php See the big red warning.
 | |
| 	 *
 | |
| 	 * @since 1.5.0
 | |
| 	 * @since 1.8.0 Moved from stand-alone function to this class.
 | |
| 	 *
 | |
| 	 * @param mixed  $number1   Scalar (string/int/float/bool).
 | |
| 	 * @param string $action    Calculation action to execute. Valid input:
 | |
| 	 *                          '+' or 'add' or 'addition',
 | |
| 	 *                          '-' or 'sub' or 'subtract',
 | |
| 	 *                          '*' or 'mul' or 'multiply',
 | |
| 	 *                          '/' or 'div' or 'divide',
 | |
| 	 *                          '%' or 'mod' or 'modulus'
 | |
| 	 *                          '=' or 'comp' or 'compare'.
 | |
| 	 * @param mixed  $number2   Scalar (string/int/float/bool).
 | |
| 	 * @param bool   $round     Whether or not to round the result. Defaults to false.
 | |
| 	 *                          Will be disregarded for a compare operation.
 | |
| 	 * @param int    $decimals  Decimals for rounding operation. Defaults to 0.
 | |
| 	 * @param int    $precision Calculation precision. Defaults to 10.
 | |
| 	 *
 | |
| 	 * @return mixed Calculation Result or false if either or the numbers isn't scalar or
 | |
| 	 *               an invalid operation was passed.
 | |
| 	 *               - For compare the result will always be an integer.
 | |
| 	 *               - For all other operations, the result will either be an integer (preferred)
 | |
| 	 *                 or a float.
 | |
| 	 */
 | |
| 	public static function calc( $number1, $action, $number2, $round = false, $decimals = 0, $precision = 10 ) {
 | |
| 		static $bc;
 | |
| 
 | |
| 		if ( ! is_scalar( $number1 ) || ! is_scalar( $number2 ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		if ( ! isset( $bc ) ) {
 | |
| 			$bc = extension_loaded( 'bcmath' );
 | |
| 		}
 | |
| 
 | |
| 		if ( $bc ) {
 | |
| 			$number1 = number_format( $number1, 10, '.', '' );
 | |
| 			$number2 = number_format( $number2, 10, '.', '' );
 | |
| 		}
 | |
| 
 | |
| 		$result  = null;
 | |
| 		$compare = false;
 | |
| 
 | |
| 		switch ( $action ) {
 | |
| 			case '+':
 | |
| 			case 'add':
 | |
| 			case 'addition':
 | |
| 				$result = ( $bc ) ? bcadd( $number1, $number2, $precision ) /* string */ : ( $number1 + $number2 );
 | |
| 				break;
 | |
| 
 | |
| 			case '-':
 | |
| 			case 'sub':
 | |
| 			case 'subtract':
 | |
| 				$result = ( $bc ) ? bcsub( $number1, $number2, $precision ) /* string */ : ( $number1 - $number2 );
 | |
| 				break;
 | |
| 
 | |
| 			case '*':
 | |
| 			case 'mul':
 | |
| 			case 'multiply':
 | |
| 				$result = ( $bc ) ? bcmul( $number1, $number2, $precision ) /* string */ : ( $number1 * $number2 );
 | |
| 				break;
 | |
| 
 | |
| 			case '/':
 | |
| 			case 'div':
 | |
| 			case 'divide':
 | |
| 				if ( $bc ) {
 | |
| 					$result = bcdiv( $number1, $number2, $precision ); // String, or NULL if right_operand is 0.
 | |
| 				}
 | |
| 				elseif ( $number2 != 0 ) { // phpcs:ignore WordPress.PHP.StrictComparisons -- Purposeful loose comparison.
 | |
| 					$result = ( $number1 / $number2 );
 | |
| 				}
 | |
| 
 | |
| 				if ( ! isset( $result ) ) {
 | |
| 					$result = 0;
 | |
| 				}
 | |
| 				break;
 | |
| 
 | |
| 			case '%':
 | |
| 			case 'mod':
 | |
| 			case 'modulus':
 | |
| 				if ( $bc ) {
 | |
| 					$result = bcmod( $number1, $number2 ); // String, or NULL if modulus is 0.
 | |
| 				}
 | |
| 				elseif ( $number2 != 0 ) { // phpcs:ignore WordPress.PHP.StrictComparisons -- Purposeful loose comparison.
 | |
| 					$result = ( $number1 % $number2 );
 | |
| 				}
 | |
| 
 | |
| 				if ( ! isset( $result ) ) {
 | |
| 					$result = 0;
 | |
| 				}
 | |
| 				break;
 | |
| 
 | |
| 			case '=':
 | |
| 			case 'comp':
 | |
| 			case 'compare':
 | |
| 				$compare = true;
 | |
| 				if ( $bc ) {
 | |
| 					$result = bccomp( $number1, $number2, $precision ); // Returns int 0, 1 or -1.
 | |
| 				}
 | |
| 				else {
 | |
| 					// phpcs:ignore WordPress.PHP.StrictComparisons -- Purposeful loose comparison.
 | |
| 					$result = ( $number1 == $number2 ) ? 0 : ( ( $number1 > $number2 ) ? 1 : -1 );
 | |
| 				}
 | |
| 				break;
 | |
| 		}
 | |
| 
 | |
| 		if ( isset( $result ) ) {
 | |
| 			if ( $compare === false ) {
 | |
| 				if ( $round === true ) {
 | |
| 					$result = round( floatval( $result ), $decimals );
 | |
| 					if ( $decimals === 0 ) {
 | |
| 						$result = (int) $result;
 | |
| 					}
 | |
| 				}
 | |
| 				else {
 | |
| 					// phpcs:ignore WordPress.PHP.StrictComparisons -- Purposeful loose comparison.
 | |
| 					$result = ( intval( $result ) == $result ) ? intval( $result ) : floatval( $result );
 | |
| 				}
 | |
| 			}
 | |
| 
 | |
| 			return $result;
 | |
| 		}
 | |
| 
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Trim whitespace and NBSP (Non-breaking space) from string.
 | |
| 	 *
 | |
| 	 * @since 2.0.0
 | |
| 	 *
 | |
| 	 * @param string $text String input to trim.
 | |
| 	 *
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public static function trim_nbsp_from_string( $text ) {
 | |
| 		$find = [ ' ', chr( 0xC2 ) . chr( 0xA0 ) ];
 | |
| 		$text = str_replace( $find, ' ', $text );
 | |
| 		$text = trim( $text );
 | |
| 
 | |
| 		return $text;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check if a string is a valid datetime.
 | |
| 	 *
 | |
| 	 * @since 2.0.0
 | |
| 	 *
 | |
| 	 * @param string $datetime String input to check as valid input for DateTime class.
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_valid_datetime( $datetime ) {
 | |
| 		return YoastSEO()->helpers->date->is_valid_datetime( $datetime );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Format the URL to be sure it is okay for using as a redirect url.
 | |
| 	 *
 | |
| 	 * This method will parse the URL and combine them in one string.
 | |
| 	 *
 | |
| 	 * @since 2.3.0
 | |
| 	 *
 | |
| 	 * @param string $url URL string.
 | |
| 	 *
 | |
| 	 * @return mixed
 | |
| 	 */
 | |
| 	public static function format_url( $url ) {
 | |
| 		$parsed_url = wp_parse_url( $url );
 | |
| 
 | |
| 		$formatted_url = '';
 | |
| 		if ( ! empty( $parsed_url['path'] ) ) {
 | |
| 			$formatted_url = $parsed_url['path'];
 | |
| 		}
 | |
| 
 | |
| 		// Prepend a slash if first char != slash.
 | |
| 		if ( stripos( $formatted_url, '/' ) !== 0 ) {
 | |
| 			$formatted_url = '/' . $formatted_url;
 | |
| 		}
 | |
| 
 | |
| 		// Append 'query' string if it exists.
 | |
| 		if ( ! empty( $parsed_url['query'] ) ) {
 | |
| 			$formatted_url .= '?' . $parsed_url['query'];
 | |
| 		}
 | |
| 
 | |
| 		return apply_filters( 'wpseo_format_admin_url', $formatted_url );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieves the sitename.
 | |
| 	 *
 | |
| 	 * @since 3.0.0
 | |
| 	 *
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public static function get_site_name() {
 | |
| 		return YoastSEO()->helpers->site->get_site_name();
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check if the current opened page is a Yoast SEO page.
 | |
| 	 *
 | |
| 	 * @since 3.0.0
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_yoast_seo_page() {
 | |
| 		return YoastSEO()->helpers->current_page->is_yoast_seo_page();
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check if the current opened page belongs to Yoast SEO Free.
 | |
| 	 *
 | |
| 	 * @since 3.3.0
 | |
| 	 *
 | |
| 	 * @param string $current_page The current page the user is on.
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_yoast_seo_free_page( $current_page ) {
 | |
| 		$yoast_seo_free_pages = [
 | |
| 			'wpseo_dashboard',
 | |
| 			'wpseo_tools',
 | |
| 			'wpseo_search_console',
 | |
| 			'wpseo_licenses',
 | |
| 		];
 | |
| 
 | |
| 		return in_array( $current_page, $yoast_seo_free_pages, true );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Determine if Yoast SEO is in development mode?
 | |
| 	 *
 | |
| 	 * Inspired by JetPack (https://github.com/Automattic/jetpack/blob/master/class.jetpack.php#L1383-L1406).
 | |
| 	 *
 | |
| 	 * @since 3.0.0
 | |
| 	 *
 | |
| 	 * @return bool
 | |
| 	 */
 | |
| 	public static function is_development_mode() {
 | |
| 		$development_mode = false;
 | |
| 
 | |
| 		if ( defined( 'YOAST_ENVIRONMENT' ) && YOAST_ENVIRONMENT === 'development' ) {
 | |
| 			$development_mode = true;
 | |
| 		}
 | |
| 		elseif ( defined( 'WPSEO_DEBUG' ) ) {
 | |
| 			$development_mode = WPSEO_DEBUG;
 | |
| 		}
 | |
| 		elseif ( site_url() && strpos( site_url(), '.' ) === false ) {
 | |
| 			$development_mode = true;
 | |
| 		}
 | |
| 
 | |
| 		/**
 | |
| 		 * Filter the Yoast SEO development mode.
 | |
| 		 *
 | |
| 		 * @since 3.0
 | |
| 		 *
 | |
| 		 * @param bool $development_mode Is Yoast SEOs development mode active.
 | |
| 		 */
 | |
| 		return apply_filters( 'yoast_seo_development_mode', $development_mode );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieve home URL with proper trailing slash.
 | |
| 	 *
 | |
| 	 * @since 3.3.0
 | |
| 	 *
 | |
| 	 * @param string      $path   Path relative to home URL.
 | |
| 	 * @param string|null $scheme Scheme to apply.
 | |
| 	 *
 | |
| 	 * @return string Home URL with optional path, appropriately slashed if not.
 | |
| 	 */
 | |
| 	public static function home_url( $path = '', $scheme = null ) {
 | |
| 		return YoastSEO()->helpers->url->home( $path, $scheme );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks if the WP-REST-API is available.
 | |
| 	 *
 | |
| 	 * @since 3.6
 | |
| 	 * @since 3.7 Introduced the $minimum_version parameter.
 | |
| 	 *
 | |
| 	 * @param string $minimum_version The minimum version the API should be.
 | |
| 	 *
 | |
| 	 * @return bool Returns true if the API is available.
 | |
| 	 */
 | |
| 	public static function is_api_available( $minimum_version = '2.0' ) {
 | |
| 		return ( defined( 'REST_API_VERSION' )
 | |
| 			&& version_compare( REST_API_VERSION, $minimum_version, '>=' ) );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Determine whether or not the metabox should be displayed for a post type.
 | |
| 	 *
 | |
| 	 * @param string|null $post_type Optional. The post type to check the visibility of the metabox for.
 | |
| 	 *
 | |
| 	 * @return bool Whether or not the metabox should be displayed.
 | |
| 	 */
 | |
| 	protected static function display_post_type_metabox( $post_type = null ) {
 | |
| 		if ( ! isset( $post_type ) ) {
 | |
| 			$post_type = get_post_type();
 | |
| 		}
 | |
| 
 | |
| 		if ( ! isset( $post_type ) || ! WPSEO_Post_Type::is_post_type_accessible( $post_type ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		if ( $post_type === 'attachment' && WPSEO_Options::get( 'disable-attachment' ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		return apply_filters( 'wpseo_enable_editor_features_' . $post_type, WPSEO_Options::get( 'display-metabox-pt-' . $post_type ) );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Determine whether or not the metabox should be displayed for a taxonomy.
 | |
| 	 *
 | |
| 	 * @param string|null $taxonomy Optional. The post type to check the visibility of the metabox for.
 | |
| 	 *
 | |
| 	 * @return bool Whether or not the metabox should be displayed.
 | |
| 	 */
 | |
| 	protected static function display_taxonomy_metabox( $taxonomy = null ) {
 | |
| 		if ( ! isset( $taxonomy ) || ! in_array( $taxonomy, get_taxonomies( [ 'public' => true ], 'names' ), true ) ) {
 | |
| 			return false;
 | |
| 		}
 | |
| 
 | |
| 		return WPSEO_Options::get( 'display-metabox-tax-' . $taxonomy );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Determines whether the metabox is active for the given identifier and type.
 | |
| 	 *
 | |
| 	 * @param string $identifier The identifier to check for.
 | |
| 	 * @param string $type       The type to check for.
 | |
| 	 *
 | |
| 	 * @return bool Whether or not the metabox is active.
 | |
| 	 */
 | |
| 	public static function is_metabox_active( $identifier, $type ) {
 | |
| 		if ( $type === 'post_type' ) {
 | |
| 			return self::display_post_type_metabox( $identifier );
 | |
| 		}
 | |
| 
 | |
| 		if ( $type === 'taxonomy' ) {
 | |
| 			return self::display_taxonomy_metabox( $identifier );
 | |
| 		}
 | |
| 
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Determines whether the plugin is active for the entire network.
 | |
| 	 *
 | |
| 	 * @return bool Whether the plugin is network-active.
 | |
| 	 */
 | |
| 	public static function is_plugin_network_active() {
 | |
| 		return YoastSEO()->helpers->url->is_plugin_network_active();
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Gets the type of the current post.
 | |
| 	 *
 | |
| 	 * @return string The post type, or an empty string.
 | |
| 	 */
 | |
| 	public static function get_post_type() {
 | |
| 		$wp_screen = \get_current_screen();
 | |
| 
 | |
| 		if ( $wp_screen !== null && ! empty( $wp_screen->post_type ) ) {
 | |
| 			return $wp_screen->post_type;
 | |
| 		}
 | |
| 		return '';
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Gets the type of the current page.
 | |
| 	 *
 | |
| 	 * @return string Returns 'post' if the current page is a post edit page. Taxonomy in other cases.
 | |
| 	 */
 | |
| 	public static function get_page_type() {
 | |
| 		global $pagenow;
 | |
| 		if ( WPSEO_Metabox::is_post_edit( $pagenow ) ) {
 | |
| 			return 'post';
 | |
| 		}
 | |
| 
 | |
| 		return 'taxonomy';
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Getter for the Adminl10n array. Applies the wpseo_admin_l10n filter.
 | |
| 	 *
 | |
| 	 * @return array The Adminl10n array.
 | |
| 	 */
 | |
| 	public static function get_admin_l10n() {
 | |
| 		$post_type = self::get_post_type();
 | |
| 		$page_type = self::get_page_type();
 | |
| 
 | |
| 		$label_object = false;
 | |
| 		$no_index     = false;
 | |
| 
 | |
| 		if ( $page_type === 'post' ) {
 | |
| 			$label_object = get_post_type_object( $post_type );
 | |
| 			$no_index     = WPSEO_Options::get( 'noindex-' . $post_type, false );
 | |
| 		}
 | |
| 		else {
 | |
| 			$label_object = WPSEO_Taxonomy::get_labels();
 | |
| 
 | |
| 			$wp_screen = \get_current_screen();
 | |
| 
 | |
| 			if ( $wp_screen !== null && ! empty( $wp_screen->taxonomy ) ) {
 | |
| 				$taxonomy_slug = $wp_screen->taxonomy;
 | |
| 				$no_index      = WPSEO_Options::get( 'noindex-tax-' . $taxonomy_slug, false );
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		$wpseo_admin_l10n = [
 | |
| 			'displayAdvancedTab'    => WPSEO_Capability_Utils::current_user_can( 'wpseo_edit_advanced_metadata' ) || ! WPSEO_Options::get( 'disableadvanced_meta' ),
 | |
| 			'noIndex'               => (bool) $no_index,
 | |
| 			'isPostType'            => (bool) get_post_type(),
 | |
| 			'postType'              => get_post_type(),
 | |
| 			'postTypeNamePlural'    => ( $page_type === 'post' ) ? $label_object->label : $label_object->name,
 | |
| 			'postTypeNameSingular'  => ( $page_type === 'post' ) ? $label_object->labels->singular_name : $label_object->singular_name,
 | |
| 			'isBreadcrumbsDisabled' => WPSEO_Options::get( 'breadcrumbs-enable', false ) !== true && ! current_theme_supports( 'yoast-seo-breadcrumbs' ),
 | |
| 			// phpcs:ignore Generic.ControlStructures.DisallowYodaConditions -- Bug: squizlabs/PHP_CodeSniffer#2962.
 | |
| 			'isPrivateBlog'         => ( (string) get_option( 'blog_public' ) ) === '0',
 | |
| 			'news_seo_is_active'    => ( defined( 'WPSEO_NEWS_FILE' ) ),
 | |
| 		];
 | |
| 
 | |
| 		$additional_entries = apply_filters( 'wpseo_admin_l10n', [] );
 | |
| 		if ( is_array( $additional_entries ) ) {
 | |
| 			$wpseo_admin_l10n = array_merge( $wpseo_admin_l10n, $additional_entries );
 | |
| 		}
 | |
| 
 | |
| 		return $wpseo_admin_l10n;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Retrieves the analysis worker log level. Defaults to errors only.
 | |
| 	 *
 | |
| 	 * Uses bool YOAST_SEO_DEBUG as flag to enable logging. Off equals ERROR.
 | |
| 	 * Uses string YOAST_SEO_DEBUG_ANALYSIS_WORKER as log level for the Analysis
 | |
| 	 * Worker. Defaults to INFO.
 | |
| 	 * Can be: TRACE, DEBUG, INFO, WARN or ERROR.
 | |
| 	 *
 | |
| 	 * @return string The log level to use.
 | |
| 	 */
 | |
| 	public static function get_analysis_worker_log_level() {
 | |
| 		if ( defined( 'YOAST_SEO_DEBUG' ) && YOAST_SEO_DEBUG ) {
 | |
| 			return defined( 'YOAST_SEO_DEBUG_ANALYSIS_WORKER' ) ? YOAST_SEO_DEBUG_ANALYSIS_WORKER : 'INFO';
 | |
| 		}
 | |
| 
 | |
| 		return 'ERROR';
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Returns the unfiltered home URL.
 | |
| 	 *
 | |
| 	 * In case WPML is installed, returns the original home_url and not the WPML version.
 | |
| 	 * In case of a multisite setup we return the network_home_url.
 | |
| 	 *
 | |
| 	 * @codeCoverageIgnore
 | |
| 	 *
 | |
| 	 * @return string The home url.
 | |
| 	 */
 | |
| 	public static function get_home_url() {
 | |
| 		return YoastSEO()->helpers->url->network_safe_home_url();
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Prepares data for outputting as JSON.
 | |
| 	 *
 | |
| 	 * @param array $data The data to format.
 | |
| 	 *
 | |
| 	 * @return false|string The prepared JSON string.
 | |
| 	 */
 | |
| 	public static function format_json_encode( $data ) {
 | |
| 		$flags = ( JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE );
 | |
| 
 | |
| 		if ( self::is_development_mode() ) {
 | |
| 			$flags = ( $flags | JSON_PRETTY_PRINT );
 | |
| 
 | |
| 			/**
 | |
| 			 * Filter the Yoast SEO development mode.
 | |
| 			 *
 | |
| 			 * @api array $data Allows filtering of the JSON data for debug purposes.
 | |
| 			 */
 | |
| 			$data = apply_filters( 'wpseo_debug_json_data', $data );
 | |
| 		}
 | |
| 
 | |
| 		// phpcs:ignore Yoast.Yoast.AlternativeFunctions.json_encode_wp_json_encodeWithAdditionalParams -- This is the definition of format_json_encode.
 | |
| 		return wp_json_encode( $data, $flags );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Extends the allowed post tags with accessibility-related attributes.
 | |
| 	 *
 | |
| 	 * @codeCoverageIgnore
 | |
| 	 *
 | |
| 	 * @param array $allowed_post_tags The allowed post tags.
 | |
| 	 *
 | |
| 	 * @return array The allowed tags including post tags, input tags and select tags.
 | |
| 	 */
 | |
| 	public static function extend_kses_post_with_a11y( $allowed_post_tags ) {
 | |
| 		static $a11y_tags;
 | |
| 
 | |
| 		if ( isset( $a11y_tags ) === false ) {
 | |
| 			$a11y_tags = [
 | |
| 				'button'   => [
 | |
| 					'aria-expanded' => true,
 | |
| 					'aria-controls' => true,
 | |
| 				],
 | |
| 				'div'      => [
 | |
| 					'tabindex' => true,
 | |
| 				],
 | |
| 				// Below are attributes that are needed for backwards compatibility (WP < 5.1).
 | |
| 				'span'     => [
 | |
| 					'aria-hidden' => true,
 | |
| 				],
 | |
| 				'input'    => [
 | |
| 					'aria-describedby' => true,
 | |
| 				],
 | |
| 				'select'   => [
 | |
| 					'aria-describedby' => true,
 | |
| 				],
 | |
| 				'textarea' => [
 | |
| 					'aria-describedby' => true,
 | |
| 				],
 | |
| 			];
 | |
| 
 | |
| 			// Add the global allowed attributes to each html element.
 | |
| 			$a11y_tags = array_map( '_wp_add_global_attributes', $a11y_tags );
 | |
| 		}
 | |
| 
 | |
| 		return array_merge_recursive( $allowed_post_tags, $a11y_tags );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Extends the allowed post tags with input, select and option tags.
 | |
| 	 *
 | |
| 	 * @codeCoverageIgnore
 | |
| 	 *
 | |
| 	 * @param array $allowed_post_tags The allowed post tags.
 | |
| 	 *
 | |
| 	 * @return array The allowed tags including post tags, input tags, select tags and option tags.
 | |
| 	 */
 | |
| 	public static function extend_kses_post_with_forms( $allowed_post_tags ) {
 | |
| 		static $input_tags;
 | |
| 
 | |
| 		if ( isset( $input_tags ) === false ) {
 | |
| 			$input_tags = [
 | |
| 				'input' => [
 | |
| 					'accept'          => true,
 | |
| 					'accesskey'       => true,
 | |
| 					'align'           => true,
 | |
| 					'alt'             => true,
 | |
| 					'autocomplete'    => true,
 | |
| 					'autofocus'       => true,
 | |
| 					'checked'         => true,
 | |
| 					'contenteditable' => true,
 | |
| 					'dirname'         => true,
 | |
| 					'disabled'        => true,
 | |
| 					'draggable'       => true,
 | |
| 					'dropzone'        => true,
 | |
| 					'form'            => true,
 | |
| 					'formaction'      => true,
 | |
| 					'formenctype'     => true,
 | |
| 					'formmethod'      => true,
 | |
| 					'formnovalidate'  => true,
 | |
| 					'formtarget'      => true,
 | |
| 					'height'          => true,
 | |
| 					'hidden'          => true,
 | |
| 					'lang'            => true,
 | |
| 					'list'            => true,
 | |
| 					'max'             => true,
 | |
| 					'maxlength'       => true,
 | |
| 					'min'             => true,
 | |
| 					'multiple'        => true,
 | |
| 					'name'            => true,
 | |
| 					'pattern'         => true,
 | |
| 					'placeholder'     => true,
 | |
| 					'readonly'        => true,
 | |
| 					'required'        => true,
 | |
| 					'size'            => true,
 | |
| 					'spellcheck'      => true,
 | |
| 					'src'             => true,
 | |
| 					'step'            => true,
 | |
| 					'tabindex'        => true,
 | |
| 					'translate'       => true,
 | |
| 					'type'            => true,
 | |
| 					'value'           => true,
 | |
| 					'width'           => true,
 | |
| 
 | |
| 					/*
 | |
| 					 * Below are attributes that are needed for backwards compatibility (WP < 5.1).
 | |
| 					 * They are used for the social media image in the metabox.
 | |
| 					 * These can be removed once we move to the React versions of the social previews.
 | |
| 					 */
 | |
| 					'data-target'     => true,
 | |
| 					'data-target-id'  => true,
 | |
| 				],
 | |
| 				'select' => [
 | |
| 					'accesskey'       => true,
 | |
| 					'autofocus'       => true,
 | |
| 					'contenteditable' => true,
 | |
| 					'disabled'        => true,
 | |
| 					'draggable'       => true,
 | |
| 					'dropzone'        => true,
 | |
| 					'form'            => true,
 | |
| 					'hidden'          => true,
 | |
| 					'lang'            => true,
 | |
| 					'multiple'        => true,
 | |
| 					'name'            => true,
 | |
| 					'onblur'          => true,
 | |
| 					'onchange'        => true,
 | |
| 					'oncontextmenu'   => true,
 | |
| 					'onfocus'         => true,
 | |
| 					'oninput'         => true,
 | |
| 					'oninvalid'       => true,
 | |
| 					'onreset'         => true,
 | |
| 					'onsearch'        => true,
 | |
| 					'onselect'        => true,
 | |
| 					'onsubmit'        => true,
 | |
| 					'required'        => true,
 | |
| 					'size'            => true,
 | |
| 					'spellcheck'      => true,
 | |
| 					'tabindex'        => true,
 | |
| 					'translate'       => true,
 | |
| 				],
 | |
| 				'option' => [
 | |
| 					'class'    => true,
 | |
| 					'disabled' => true,
 | |
| 					'id'       => true,
 | |
| 					'label'    => true,
 | |
| 					'selected' => true,
 | |
| 					'value'    => true,
 | |
| 				],
 | |
| 			];
 | |
| 
 | |
| 			// Add the global allowed attributes to each html element.
 | |
| 			$input_tags = array_map( '_wp_add_global_attributes', $input_tags );
 | |
| 		}
 | |
| 
 | |
| 		return array_merge_recursive( $allowed_post_tags, $input_tags );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Gets an array of enabled features.
 | |
| 	 *
 | |
| 	 * @return string[] The array of enabled features.
 | |
| 	 */
 | |
| 	public static function retrieve_enabled_features() {
 | |
| 		/**
 | |
| 		 * The feature flag integration.
 | |
| 		 *
 | |
| 		 * @var Feature_Flag_Integration $feature_flag_integration;
 | |
| 		 */
 | |
| 		$feature_flag_integration = YoastSEO()->classes->get( Feature_Flag_Integration::class );
 | |
| 		return $feature_flag_integration->get_enabled_features();
 | |
| 	}
 | |
| 
 | |
| 	/* ********************* DEPRECATED METHODS ********************* */
 | |
| 
 | |
| 	/**
 | |
| 	 * Translates a decimal analysis score into a textual one.
 | |
| 	 *
 | |
| 	 * @since 1.8.0
 | |
| 	 * @deprecated 19.5
 | |
| 	 * @codeCoverageIgnore
 | |
| 	 *
 | |
| 	 * @param int  $val       The decimal score to translate.
 | |
| 	 * @param bool $css_value Whether to return the i18n translated score or the CSS class value.
 | |
| 	 *
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public static function translate_score( $val, $css_value = true ) {
 | |
| 		_deprecated_function( __METHOD__, 'Yoast SEO 19.5', 'YoastSEO()->helpers->score_icon' );
 | |
| 
 | |
| 		$seo_rank = WPSEO_Rank::from_numeric_score( $val );
 | |
| 
 | |
| 		if ( $css_value ) {
 | |
| 			return $seo_rank->get_css_class();
 | |
| 		}
 | |
| 
 | |
| 		return $seo_rank->get_label();
 | |
| 	}
 | |
| }
 |