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File/Folder	Size	Actions
Cache_Rule.php	2.59 KB

Edit: Cache_Rule.php

<?php

namespace SPC\Builders;

use SPC\Constants;
use SW_CLOUDFLARE_PAGECACHE;

/**
 * Cache Rule Builder.
 *
 * @see https://gist.github.com/isaumya/af10e4855ac83156cc210b7148135fa2
 */
class Cache_Rule {
	/**
	 * @var array $rule_parts Rule parts.
	 */
	private $rule_parts = [];

/**
	 * @var SW_CLOUDFLARE_PAGECACHE $plugin Plugin instance.
	 */
	private $plugin;

/**
	 * Cache_Rule constructor.
	 *
	 * @param SW_CLOUDFLARE_PAGECACHE $plugin Plugin instance.
	 */
	public function __construct( $plugin ) {
		$this->plugin = $plugin;
	}

public function exclude_cookies() {
		$excluded = $this->plugin->get_single_config( Constants::SETTING_EXCLUDED_COOKIES, [] );

if ( ! is_array( $excluded ) ) {
			return $this;
		}

foreach ( $excluded as $cookie ) {
			$this->rule_parts[] = sprintf( 'not http.cookie contains "%s"', trim( $cookie, '^' ) );
		}

return $this;
	}

/**
	 * Exclude paths from cache.
	 *
	 * @return $this
	 */
	public function exclude_paths() {
		$excluded_paths = $this->plugin->get_single_config( Constants::SETTING_EXCLUDED_URLS, [] );

if ( ! is_array( $excluded_paths ) ) {
			return $this;
		}

$excluded = array_merge(
			$excluded_paths,
			[
				'/wp-admin',
				'/wp-login',
			] 
		);

$sanitized = array_map(
			function ( $path ) {
				return str_replace( [ '/*', '*' ], '', $path );
			},
			$excluded 
		);

foreach ( $sanitized as $path ) {
			$this->rule_parts[] = sprintf( 'not http.request.uri contains "%s"', $path );
		}

return $this;
	}

public function exclude_static_content() {
		if ( (bool) $this->plugin->get_single_config( 'cf_bypass_sitemap', 1 ) ) {
			$this->rule_parts[] = 'not http.request.uri.path contains ".xml"';
			$this->rule_parts[] = 'not http.request.uri.path contains ".xsl"';
		}

if ( (bool) $this->plugin->get_single_config( 'cf_bypass_file_robots', 1 ) ) {
			$this->rule_parts[] = 'not http.request.uri.path contains "robots.txt"';
		}

return $this;
	}

/**
	 * Build cache rule expression.
	 *
	 * @return string Cache rule expression.
	 */
	public function build() {
		array_unshift( $this->rule_parts, $this->get_host_wildcard() );

$expression = implode( ' and ', $this->rule_parts );

$expression = str_replace( [ "\n", "\r", "\t" ], '', $expression ); // Remove new lines, tabs
		$expression = preg_replace( '/\s+/', ' ', $expression ); // Remove multiple spaces

return '(' . trim( $expression ) . ')';
	}

/**
	 * Get the host wildcard prefix.
	 *
	 * @return string
	 *
	 */
	private function get_host_wildcard() {
		return sprintf( 'http.host wildcard "%s*"', preg_replace( '#^(https?://)?#', '', $this->plugin->home_url() ) );
	}

}