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Great Design

Getting a Great Deal on Your Home Plans: Why Buy Direct?

Getting a Great Deal on Your Home Plans: Why Buy Direct?

Numerous influences – from finances to the desire for inter-generational joy, to health monitoring – are fueling the surge in multi-generational households. In our last post we looked at some of our most popular multi-generational home designs, showcasing various bedroom arrangements. Herein we’ll look at designs that also provide separate living areas.

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Exclusively Yours: Why Buy Direct?

Exclusively Yours: Why Buy Direct?

Design Basics values the relationships we have with select companies that also market our home plans. Quite simply, more people have the opportunity to consider our company’s designs when searching for a house plan. Which then begs the question, “Why buy directly from Design Basics?”

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Intelligent Traffic Flow

Intelligent Traffic Flow

TRAFFIC! Just hearing that word can make us cringe. The last thing we need inside our ‘home sweet home’ is issues with traffic! Whether we’re unwinding from the outside world or interacting with family members inside, we need our house design to foster tranquility.

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Designing with Natural Light

Designing with Natural Light

Home designers know natural light is one of the most important elements of residential design. We are drawn to places in our homes that are bathed in natural light and oftentimes we don’t even realize it. But whether we’re having friends over or simply curling up with...

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New Home Cost: Cheaper than Expected?

New Home Cost: Cheaper than Expected?

“When the price is higher, people tend to focus on the things that make it higher. When the price is lower people tend to focus on things explaining why it’s lower,” William Poundstone wrote in his book, Priceless. Which do you want? Prospective buyers touring your...

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A Great Elevation Helps Make the Sale

A Great Elevation Helps Make the Sale

Prospective customers rule you “in” or “out” based on your homes’ exteriors. It’s a fact. Overwhelmed by too many choices, buyers use shortcuts to narrow the number of home builders they will consider. One of those shortcuts is your elevation designs. Photographs can...

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Design Concept: Rear Foyers

Design Concept: Rear Foyers

Problem: Most families enter their home through the garage, but once you get inside, where does your stuff go? Where do you hang your jackets, stash your shoes, backpacks, handbags, etc.? And, when you leave in the morning how can you make it more convenient to get...

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Design Concept: Drop Zone

Design Concept: Drop Zone

Problem: Statements like, "When I get home, everything seems to end up on the kitchen table," or "Everything the kids walk in with gets left on the island," these and similar comments inspired one of our most popular Woman-Centric design innovations, the Drop Zone...

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Viewing: /var/www/designbasics/wp-includes/https-detection.php

<?php
/**
 * HTTPS detection functions.
 *
 * @package WordPress
 * @since 5.7.0
 */

/**
 * Checks whether the website is using HTTPS.
 *
 * This is based on whether both the home and site URL are using HTTPS.
 *
 * @since 5.7.0
 * @see wp_is_home_url_using_https()
 * @see wp_is_site_url_using_https()
 *
 * @return bool True if using HTTPS, false otherwise.
 */
function wp_is_using_https() {
	if ( ! wp_is_home_url_using_https() ) {
		return false;
	}

	return wp_is_site_url_using_https();
}

/**
 * Checks whether the current site URL is using HTTPS.
 *
 * @since 5.7.0
 * @see home_url()
 *
 * @return bool True if using HTTPS, false otherwise.
 */
function wp_is_home_url_using_https() {
	return 'https' === wp_parse_url( home_url(), PHP_URL_SCHEME );
}

/**
 * Checks whether the current site's URL where WordPress is stored is using HTTPS.
 *
 * This checks the URL where WordPress application files (e.g. wp-blog-header.php or the wp-admin/ folder)
 * are accessible.
 *
 * @since 5.7.0
 * @see site_url()
 *
 * @return bool True if using HTTPS, false otherwise.
 */
function wp_is_site_url_using_https() {
	/*
	 * Use direct option access for 'siteurl' and manually run the 'site_url'
	 * filter because `site_url()` will adjust the scheme based on what the
	 * current request is using.
	 */
	/** This filter is documented in wp-includes/link-template.php */
	$site_url = apply_filters( 'site_url', get_option( 'siteurl' ), '', null, null );

	return 'https' === wp_parse_url( $site_url, PHP_URL_SCHEME );
}

/**
 * Checks whether HTTPS is supported for the server and domain.
 *
 * @since 5.7.0
 *
 * @return bool True if HTTPS is supported, false otherwise.
 */
function wp_is_https_supported() {
	$https_detection_errors = get_option( 'https_detection_errors' );

	// If option has never been set by the Cron hook before, run it on-the-fly as fallback.
	if ( false === $https_detection_errors ) {
		wp_update_https_detection_errors();

		$https_detection_errors = get_option( 'https_detection_errors' );
	}

	// If there are no detection errors, HTTPS is supported.
	return empty( $https_detection_errors );
}

/**
 * Runs a remote HTTPS request to detect whether HTTPS supported, and stores potential errors.
 *
 * This internal function is called by a regular Cron hook to ensure HTTPS support is detected and maintained.
 *
 * @since 6.4.0
 * @access private
 */
function wp_get_https_detection_errors() {
	/**
	 * Short-circuits the process of detecting errors related to HTTPS support.
	 *
	 * Returning a `WP_Error` from the filter will effectively short-circuit the default logic of trying a remote
	 * request to the site over HTTPS, storing the errors array from the returned `WP_Error` instead.
	 *
	 * @since 6.4.0
	 *
	 * @param null|WP_Error $pre Error object to short-circuit detection,
	 *                           or null to continue with the default behavior.
	 * @return null|WP_Error Error object if HTTPS detection errors are found, null otherwise.
	 */
	$support_errors = apply_filters( 'pre_wp_get_https_detection_errors', null );
	if ( is_wp_error( $support_errors ) ) {
		return $support_errors->errors;
	}

	$support_errors = new WP_Error();

	$response = wp_remote_request(
		home_url( '/', 'https' ),
		array(
			'headers'   => array(
				'Cache-Control' => 'no-cache',
			),
			'sslverify' => true,
		)
	);

	if ( is_wp_error( $response ) ) {
		$unverified_response = wp_remote_request(
			home_url( '/', 'https' ),
			array(
				'headers'   => array(
					'Cache-Control' => 'no-cache',
				),
				'sslverify' => false,
			)
		);

		if ( is_wp_error( $unverified_response ) ) {
			$support_errors->add(
				'https_request_failed',
				__( 'HTTPS request failed.' )
			);
		} else {
			$support_errors->add(
				'ssl_verification_failed',
				__( 'SSL verification failed.' )
			);
		}

		$response = $unverified_response;
	}

	if ( ! is_wp_error( $response ) ) {
		if ( 200 !== wp_remote_retrieve_response_code( $response ) ) {
			$support_errors->add( 'bad_response_code', wp_remote_retrieve_response_message( $response ) );
		} elseif ( false === wp_is_local_html_output( wp_remote_retrieve_body( $response ) ) ) {
			$support_errors->add( 'bad_response_source', __( 'It looks like the response did not come from this site.' ) );
		}
	}

	return $support_errors->errors;
}

/**
 * Checks whether a given HTML string is likely an output from this WordPress site.
 *
 * This function attempts to check for various common WordPress patterns whether they are included in the HTML string.
 * Since any of these actions may be disabled through third-party code, this function may also return null to indicate
 * that it was not possible to determine ownership.
 *
 * @since 5.7.0
 * @access private
 *
 * @param string $html Full HTML output string, e.g. from a HTTP response.
 * @return bool|null True/false for whether HTML was generated by this site, null if unable to determine.
 */
function wp_is_local_html_output( $html ) {
	// 1. Check if HTML includes the site's Really Simple Discovery link.
	if ( has_action( 'wp_head', 'rsd_link' ) ) {
		$pattern = preg_replace( '#^https?:(?=//)#', '', esc_url( site_url( 'xmlrpc.php?rsd', 'rpc' ) ) ); // See rsd_link().
		return str_contains( $html, $pattern );
	}

	// 2. Check if HTML includes the site's REST API link.
	if ( has_action( 'wp_head', 'rest_output_link_wp_head' ) ) {
		// Try both HTTPS and HTTP since the URL depends on context.
		$pattern = preg_replace( '#^https?:(?=//)#', '', esc_url( get_rest_url() ) ); // See rest_output_link_wp_head().
		return str_contains( $html, $pattern );
	}

	// Otherwise the result cannot be determined.
	return null;
}

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