<?php

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/**

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* FormatValidator class.

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*/

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namespace Automattic\WooCommerce\Internal\Settings;

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defined( 'ABSPATH' ) || exit;

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/**

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* This class handles sanitization of core options that need to conform to certain format.

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*

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* @since 6.6.0

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*/

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class OptionSanitizer {

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/**

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* OptionSanitizer constructor.

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*/

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public function __construct() {

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// Sanitize color options.

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$color_options = array(

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'woocommerce_email_base_color',

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'woocommerce_email_background_color',

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'woocommerce_email_body_background_color',

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'woocommerce_email_text_color',

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);

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foreach ( $color_options as $option_name ) {

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add_filter(

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"woocommerce_admin_settings_sanitize_option_{$option_name}",

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array( $this, 'sanitize_color_option' ),

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10,

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2

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);

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}

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// Cast "Out of stock threshold" field to absolute integer to prevent storing empty value.

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add_filter( 'woocommerce_admin_settings_sanitize_option_woocommerce_notify_no_stock_amount', 'absint' );

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}

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/**

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* Sanitizes values for options of type 'color' before persisting to the database.

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* Falls back to previous/default value for the option if given an invalid value.

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*

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* @since 6.6.0

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* @param string $value Option value.

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* @param array $option Option data.

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* @return string Color in hex format.

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*

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* @internal For exclusive usage of WooCommerce core, backwards compatibility not guaranteed.

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*/

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public function sanitize_color_option( $value, $option ) {

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$value = sanitize_hex_color( $value );

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// If invalid, try the current value.

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if ( ! $value && ! empty( $option['id'] ) ) {

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$value = sanitize_hex_color( get_option( $option['id'] ) );

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}

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// If still invalid, try the default.

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if ( ! $value && ! empty( $option['default'] ) ) {

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$value = sanitize_hex_color( $option['default'] );

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}

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return (string) $value;

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}

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}

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