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<?php
// Do not allow directly accessing this file.
if ( ! defined( 'ABSPATH' ) ) {
exit( 'Direct script access denied.' );
}
/**
* A collection of sanitization methods.
*/
class Avada_Sanitize {
/**
* Sanitize values like for example 10px, 30% etc.
*
* @param string $value The value to sanitize.
* @return string
*/
public static function size( $value ) {
// Trim the value.
$value = trim( $value );
if ( in_array( $value, array( 'auto', 'inherit', 'initial' ) ) ) {
return $value;
}
// Return empty if there are no numbers in the value.
// Prevents some CSS errors.
if ( ! preg_match( '#[0-9]#' , $value ) ) {
return;
}
return self::number( $value ) . self::get_unit( $value );
}
/**
* Return the unit of a given value.
*
* @since 4.0
*
* @param string $value A value with unit.
* @return string The unit of the given value.
*/
public static function get_unit( $value ) {
$unit_used = '';
// Trim the value.
$value = trim( $value );
// The array of valid units.
$units = array( 'px', 'rem', 'em', '%', 'vmin', 'vmax', 'vh', 'vw', 'ex', 'cm', 'mm', 'in', 'pt', 'pc', 'ch' );
foreach ( $units as $unit ) {
// Find what unit we're using.
if ( false !== strpos( $value, $unit ) ) {
$unit_used = $unit;
break;
}
}
return $unit_used;
}
/**
* Adds a specified unit to a unitless value and keeps the value unchanged if a unit is present.
* A forced unit replace can also be done.
*
* @param string $value A value like a margin setting etc., with or without unit.
* @param string $unit A unit that should be appended to unitless values.
* @param string $unit_handling 'add': only add $unit if $value is unitless.
* 'force_replace': replace the unit of $value with $unit.
*/
public static function get_value_with_unit( $value, $unit = 'px', $unit_handling = 'add' ) {
$value = trim( $value );
if ( in_array( $value, array( 'auto', 'inherit', 'initial' ) ) ) {
return $value;
}
// Return empty if there are no numbers in the value.
// Prevents some CSS errors.
if ( ! preg_match( '#[0-9]#' , $value ) ) {
return;
}
// Trim the value.
$raw_value = self::number( $value );
// If the value already has an unit, return the original string.
if ( $value == $raw_value ) {
return $raw_value . $unit;
} elseif ( 'force_replace' == $unit_handling ) {
return $raw_value . $unit;
}
return $value;
}
/**
* Sanitises a HEX value.
* (part of the Kirki Toolkit).
* The way this works is by splitting the string in 6 substrings.
* Each sub-string is individually sanitized, and the result is then returned.
*
* @param string $color The hex value of a color.
* @return string
*/
public static function hex( $color ) {
return Avada_Color::new_color( $color )->to_css( 'hex' );
}
/**
* Sanitizes an rgba color value.
* (part of the Kirki Toolkit).
*
* @param string $value The value to sanitize.
* @return string
*/
public static function rgba( $value ) {
return Avada_Color::new_color( $value )->to_css( 'rgba' );
}
/**
* Sanitize colors.
* (part of the Kirki Toolkit).
* Determine if the current value is a hex or an rgba color and call the appropriate method.
*
* @since 0.8.5
*
* @param string $value string hex or rgba color.
* @return string
*/
public static function color( $value ) {
$color_obj = Avada_Color::new_color( $value );
$mode = ( is_array( $value ) ) ? 'rgba' : $color_obj->mode;
return $color_obj->to_css( $mode );
}
/**
* Gets the rgba value of the $hex color.
* (part of the Kirki Toolkit).
*
* @param string $hex The hex value of a color.
* @param int $opacity Opacity level (1-100).
* @return string
*/
public static function get_rgba( $hex = '#fff', $opacity = 100 ) {
$color_obj = Avada_Color::new_color( $hex );
$alpha = ( 1 < $opacity ) ? $opacity / 100 : $opacity;
return $color_obj->get_new( 'alpha', $alpha )->to_css( 'rgba' );
}
/**
* Gets the rgb value of the $hex color.
* (part of the Kirki Toolkit).
*
* @param string $hex The hex value of a color.
* @param boolean $implode Whether we want to implode the values or not.
* @return array|string
*/
public static function get_rgb( $hex, $implode = false ) {
$color_obj = Avada_Color::new_color( $hex );
if ( $implode ) {
return $color_obj->to_css( 'rgb' );
}
return array(
$color_obj->red,
$color_obj->green,
$color_obj->blue,
);
}
/**
* Strips the alpha value from an RGBA color string.
*
* @param string $rgba The RGBA color string.
* @return string The corresponding RGB string.
*/
public static function rgba_to_rgb( $rgba ) {
$color_obj = Avada_Color::new_color( $rgba );
return $color_obj->to_css( 'rgb' );
}
/**
* Properly escape some characters in image URLs so that they may be properly used in CSS.
* From W3C:
* > Some characters appearing in an unquoted URI,
* > such as parentheses, white space characters, single quotes (') and double quotes ("),
* > must be escaped with a backslash so that the resulting URI value is a URI token: '\(', '\)'.
*
* @param string $url The URL to modify.
*/
public static function css_asset_url( $url ) {
$url = esc_url_raw( $url );
$url = str_replace( '(', '\(', $url );
$url = str_replace( ')', '\)', $url );
$url = str_replace( '"', '\"', $url );
$url = str_replace( ' ', '\ ', $url );
$url = str_replace( "'", "\'", $url );
return $url;
}
/**
* Removes the scheme of the passed URL to fit the current page.
*
* @param string $url The URL that needs sanitation.
* @return string Full URL without scheme.
*/
public static function get_url_with_correct_scheme( $url ) {
$url = str_replace( 'http://', '//', str_replace( 'https://', '//', $url ) );
return $url;
}
/**
* Sanitizes a number value.
*
* @param string|int|float $value The value to sanitize.
* @return float|int
*/
public static function number( $value ) {
return filter_var( $value, FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION );
}
/**
* Orders an array like another one with the same keys.
*
* @since 4.0
*
* @param array $to_be_ordered The array that should be ordered.
* @param array $order_like The array that should be used to order $to_be_ordered.
*
* @return array The correctly ordered version of $to_be_ordered.
*/
public static function order_array_like_array( array $to_be_ordered, array $order_like ) {
$ordered = array();
foreach ( $order_like as $key => $value ) {
if ( array_key_exists( $key, $to_be_ordered ) ) {
$ordered[ $key ] = $to_be_ordered[ $key ];
unset( $to_be_ordered[ $key ] );
}
}
return $ordered + $to_be_ordered;
}
/**
* Sanitizes the envato token & refreshes the transients.
*
* @access public
* @param string $value The token.
* @return string
*/
public static function envato_token( $value ) {
delete_transient( 'avada_is_envato_valid' );
if ( is_string( $value ) ) {
return trim( $value );
}
return '';
}
}