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Code Editor : sanitize-functions.php

<?php
/**
 *
 * Sanitize functions.
 *
 * Author:          Andrei Baicus <andrei@themeisle.com>
 * Created on:      20/08/2018
 *
 * @package Neve\Globals
 */

/**
 * Function to sanitize alpha color.
 *
 * @param string $value Hex or RGBA color.
 *
 * @return string
 */
function neve_sanitize_colors( $value ) {
	$is_var = ( strpos( $value, 'var' ) !== false );

if ( $is_var ) {
		return sanitize_text_field( $value );
	}

// Is this an rgba color or a hex?
	$mode = ( false === strpos( $value, 'rgba' ) ) ? 'hex' : 'rgba';

if ( 'rgba' === $mode ) {
		return neve_sanitize_rgba( $value );
	} else {
		return sanitize_hex_color( $value );
	}
}

/**
 * Sanitize rgba color.
 *
 * @param string $value Color in rgba format.
 *
 * @return string
 */
function neve_sanitize_rgba( $value ) {
	$red   = 'rgba(0,0,0,0)';
	$green = 'rgba(0,0,0,0)';
	$blue  = 'rgba(0,0,0,0)';
	$alpha = 'rgba(0,0,0,0)';   // If empty or an array return transparent
	if ( empty( $value ) || is_array( $value ) ) {
		return '';
	}

// By now we know the string is formatted as an rgba color so we need to further sanitize it.
	$value = str_replace( ' ', '', $value );
	sscanf( $value, 'rgba(%d,%d,%d,%f)', $red, $green, $blue, $alpha );

return 'rgba(' . $red . ',' . $green . ',' . $blue . ',' . $alpha . ')';
}

/**
 * Sanitize checkbox output.
 *
 * @param bool $value value to be sanitized.
 *
 * @return string
 */
function neve_sanitize_checkbox( $value ) {
	return isset( $value ) && true === (bool) $value;
}

/**
 * Check if a string is in json format
 *
 * @param string $string Input.
 *
 * @return bool
 * @since 1.1.38
 */
function neve_is_json( $string ) {
	return is_string( $string ) && is_array( json_decode( $string, true ) );
}

/**
 * Sanitize values for range inputs.
 *
 * @param string $input Control input.
 *
 * @return float
 */
function neve_sanitize_range_value( $input ) {
	if ( ! neve_is_json( $input ) ) {
		return floatval( $input );
	}
	$range_value            = json_decode( $input, true );
	$range_value['desktop'] = is_numeric( $range_value['desktop'] ) ? floatval( $range_value['desktop'] ) : '';
	$range_value['tablet']  = is_numeric( $range_value['tablet'] ) ? floatval( $range_value['tablet'] ) : '';
	$range_value['mobile']  = is_numeric( $range_value['mobile'] ) ? floatval( $range_value['mobile'] ) : '';
	return wp_json_encode( $range_value );
}

/**
 * Sanitize font weight values.
 *
 * @param string $value font-weight value.
 *
 * @return string
 */
function neve_sanitize_font_weight( $value ) {
	$allowed = array( '100', '200', '300', '400', '500', '600', '700', '800', '900' );

if ( ! in_array( (string) $value, $allowed, true ) ) {
		return '300';
	}

return $value;
}

/**
 * Sanitize font weight values.
 *
 * @param string $value font-weight value.
 *
 * @return string
 */
function neve_sanitize_text_transform( $value ) {
	$allowed = array( 'none', 'capitalize', 'uppercase', 'lowercase' );

if ( ! in_array( $value, $allowed, true ) ) {
		return 'none';
	}

return $value;
}

/**
 * Sanitize the background control.
 *
 * @param array $value input value.
 *
 * @return WP_Error | array
 */
function neve_sanitize_background( $value ) {
	if ( ! is_array( $value ) ) {
		return new WP_Error();
	}

if ( ! isset( $value['type'] ) || ! in_array( $value['type'], array( 'image', 'color' ), true ) ) {
		return new WP_Error();
	}

return $value;
}

/**
 * Sanitize the button appearance control.
 *
 * @param array $value the control value.
 *
 * @return array
 */
function neve_sanitize_button_appearance( $value ) {
	if ( is_array( $value ) ) {
		return $value;
	}

return $value;
}

/**
 * Sanitize the typography control.
 *
 * @param array $value the control value.
 *
 * @return array
 */
function neve_sanitize_typography_control( $value ) {
	$keys = [
		'lineHeight',
		'letterSpacing',
		'fontWeight',
		'fontSize',
		'textTransform',
	];

// Approve Keys.
	foreach ( $value as $key => $values ) {
		if ( ! in_array( $key, $keys, true ) ) {
			unset( $value[ $key ] );
		}
	}

// Font Weight.
	if ( ! in_array( $value['fontWeight'], [ '100', '200', '300', '400', '500', '600', '700', '800', '900' ], true ) ) {
		$value['fontWeight'] = '300';
	}
	// Text Transform.
	if ( ! in_array( $value['textTransform'], [ 'none', 'uppercase', 'lowercase', 'capitalize' ], true ) ) {
		$value['textTransform'] = 'none';
	}

// Make sure we deal with arrays.
	foreach ( [ 'letterSpacing', 'lineHeight', 'fontSize' ] as $value_type ) {
		if ( ! is_array( $value[ $value_type ] ) ) {
			$value[ $value_type ] = [];
		}
	}

return $value;
}

${this.title}

Code Editor : sanitize-functions.php