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File Content: `util.php`

<?php

namespace SpeedyCache;

if(!defined('ABSPATH')){
	die('HACKING ATTEMPT!');
}

class Util{
	static function sanitize_get($name, $default = ''){
		if(empty($_GET[$name])){
			return $default;
		}
		
		if(is_array($_GET[$name]) || is_object($_GET[$name])){
			return map_deep(wp_unslash($_GET[$name]), 'sanitize_text_field');
		}

		return sanitize_text_field(wp_unslash($_GET[$name]));
	}

	static function sanitize_post($name, $default = ''){
		if(empty($_POST[$name])){
			return $default;
		}
		
		if(is_array($_POST[$name]) || is_object($_POST[$name])){
			return map_deep(wp_unslash($_POST[$name]), 'sanitize_text_field');
		}

		return sanitize_text_field(wp_unslash($_POST[$name]));
	}

	static function sanitize_request($name, $default = ''){
		if(empty($_REQUEST[$name])){
			return $default;
		}
		
		if(is_array($_REQUEST[$name]) || is_object($_REQUEST[$name])){
			return map_deep(wp_unslash($_REQUEST[$name]), 'sanitize_text_field');
		}

		return sanitize_text_field(wp_unslash($_REQUEST[$name]));
	}
	
	static function sanitize_server($name, $default = ''){
		if(empty($_SERVER[$name])){
			return $default;
		}

		return sanitize_text_field(wp_unslash($_SERVER[$name]));
	}
	
	static function pagespeed_color($score){

		// The structure of this array is 0 => [Stroke Color, Background Color, Text Color]
		$score_color_map = array(
			0 => ['#c00', '#c003', '#c00'], // Red
			50 => ['#fa3', '#ffa50036', '#fa3'],// Orange
			90 => ['#0c6', '#00cc663b', '#080']// Green
		);

		if($score >= 0 && $score < 50){
			return $score_color_map[0];
		}

		if($score >= 50  && $score < 90){
			return $score_color_map[50];
		}

		return $score_color_map[90];
	}
	
	static function url_to_path($url){
		$url = preg_replace('/\?.*/', '', $url); // Removing any query string
		$dir_slug = str_replace(site_url(), '', $url);
		if(defined('SITEPAD')){
			global $sitepad;
			$file_path = $sitepad['path'] . '/' .trim($dir_slug, '/');
		} else {
			$file_path = ABSPATH . trim($dir_slug, '/');
		}
		return wp_normalize_path($file_path);
	}
	
	static function path_to_url($path){
		$path = wp_normalize_path($path);
		if(defined('SITEPAD')){
			global $sitepad;
			$abs_path = wp_normalize_path($sitepad['path']);
		} else {
			$abs_path = wp_normalize_path(ABSPATH);
		}
		$path = str_replace($abs_path, '', $path);
		$url = site_url() . '/' . $path;

		return $url;
	}
	
	static function cache_path($loc = ''){

		if((defined('WP_CLI') && WP_CLI) || empty($_SERVER['HTTP_HOST'])){
			global $blog_id;

			$url = get_option('home');
	
			if(!empty($blog_id) && is_multisite()){
				switch_to_blog($blog_id);
				$url = get_option('home');
				restore_current_blog();
			}

			$url = wp_parse_url($url);			
			$host = $url['host'];

			return trailingslashit(SPEEDYCACHE_CACHE_DIR . '/'.$host.'/'.$loc);
		}
		
		$host = sanitize_text_field(wp_unslash($_SERVER['HTTP_HOST']));
		return trailingslashit(SPEEDYCACHE_CACHE_DIR . '/'.$host.'/'.$loc);
	}
	
	// Creates a config file based on the URL of the website
	static function set_config_file(){
		global $speedycache;
		
		$export_config['settings']['status'] = !empty($speedycache->options['status']);
		$export_config['settings']['gzip'] = !empty($speedycache->options['gzip']);
		$export_config['settings']['logged_in_user'] = !empty($speedycache->options['logged_in_user']);
		$export_config['settings']['mobile_theme'] = !empty($speedycache->options['mobile_theme']);
		$export_config['settings']['mobile'] = !empty($speedycache->options['mobile']);
		//$export_config['user_agents'] = speedycache_get_excluded_useragent();
		$export_config['excludes'] = get_option('speedycache_exclude', []);

		$config = var_export($export_config, true);

		$url = get_site_url();
		$file = parse_url(untrailingslashit($url));
		$file['path'] = (!empty($file['path'])) ? str_replace( '/', '.', untrailingslashit($file['path'])) : '';
		$config_file_path = WP_CONTENT_DIR .'/speedycache-config/'. strtolower($file['host']) . $file['path'] . '.php';
		
		if(!file_exists(WP_CONTENT_DIR .'/speedycache-config/')){
			if(mkdir(WP_CONTENT_DIR .'/speedycache-config/', 0755, true)){
				touch(WP_CONTENT_DIR .'/speedycache-config/index.html');
				file_put_contents(WP_CONTENT_DIR .'/speedycache-config/.htaccess', 'deny from all');
			}
		}

		$config_temp = file_get_contents(SPEEDYCACHE_DIR . '/assets/config-template.php');
		$config_content = str_replace("'REPLACE_CONFIG'", $config, $config_temp);
		file_put_contents($config_file_path, $config_content);
	}
	
	static function dir_size($dir){
		$size = 0;

		foreach(glob(rtrim($dir, '/').'/*', GLOB_NOSORT) as $file){
			$size += is_file($file) ? filesize($file) : self::dir_size($file);
		}

		return $size;
	}
	
	static function cache_lifespan(){
		global $speedycache;

		$schedule_time = 0;

		if(empty($speedycache->options['purge_interval'])){
			return $schedule_time;
		}

		if(!empty($speedycache->options['purge_enable_exact_time']) && !empty($speedycache->options['purge_exact_time'])){
			$schedule_time = DAY_IN_SECONDS;
		} elseif($speedycache->options['purge_interval_unit'] == 'hours'){
			$schedule_time = HOUR_IN_SECONDS * $speedycache->options['purge_interval'];
		} elseif($speedycache->options['purge_interval_unit'] == 'days'){
			$schedule_time = DAY_IN_SECONDS * $speedycache->options['purge_interval'];
		}

		return (int) $schedule_time;
	}
	
	static function lifespan_cron(){
		global $speedycache;
		
		if(empty($speedycache->options['purge_interval'])){
			return;
		}
		
		if(!empty(wp_next_scheduled('speedycache_purge_cache'))){
			return;
		}

		if(!empty($speedycache->options['purge_enable_exact_time']) && !empty($speedycache->options['purge_exact_time'])){
			// Getting the exact time of the user's timezone by using the offset and strtotime return gtm time.
			$future_timestamp = strtotime('today '.$speedycache->options['purge_exact_time']);
			$offset = get_option('gmt_offset') * HOUR_IN_SECONDS;
			$current_time = time() - $offset;
			$future_timestamp -= $offset;

			if(time() > $future_timestamp){
				$future_timestamp = strtotime('tomorrow '.$speedycache->options['purge_exact_time']);
				$future_timestamp -= $offset;
			}

			$schedule_time = $future_timestamp - time();
			
		} elseif($speedycache->options['purge_interval_unit'] == 'hours'){
			$schedule_time = HOUR_IN_SECONDS * $speedycache->options['purge_interval'];
		} elseif($speedycache->options['purge_interval_unit'] == 'days'){
			$schedule_time = DAY_IN_SECONDS * $speedycache->options['purge_interval'];
		}

		wp_schedule_event(time() + $schedule_time, 'speedycache_expired_cache_schedule', 'speedycache_purge_cache');

	}
	
	static function preload_cron(){
		global $speedycache;
		
		if(empty($speedycache->options['preload_interval']) || empty($speedycache->options['preload'])){
			return;
		}
		
		if(wp_next_scheduled('speedycache_preload')){
			return;
		}

		$schedule_time = HOUR_IN_SECONDS * (int) $speedycache->options['preload_interval'];

		wp_schedule_event(time() + $schedule_time, 'speedycache_preload_cache_schedule', 'speedycache_preload');

	}
	
	static function custom_expiry_cron($schedules){
		
		$cache_interval = self::cache_lifespan();
		if(empty($cache_interval)){
			return $schedules;
		}

		$schedules['speedycache_expired_cache_schedule'] = [
			'interval' => $cache_interval,
			'display' => __('SpeedyCache Cache Lifespan cron', 'speedycache'),
		];

		return $schedules;
	}
	
	static function custom_preload_cron($schedules){
		global $speedycache;

		if(empty($speedycache->options['preload_interval'])){
			return $schedules;
		}
		
		$cache_interval = $speedycache->options['preload_interval'] * HOUR_IN_SECONDS;
		if(empty($cache_interval)){
			return $schedules;
		}

		$schedules['speedycache_preload_cache_schedule'] = [
			'interval' => $cache_interval,
			'display' => __('SpeedyCache Cache Preload cron', 'speedycache'),
		];

		return $schedules;
	}
	
	static function custom_cron($schedules){

		// Every 14 days (Fortnight)
		$schedules['speedycache_fortnight'] = [
			'interval' => 14 * DAY_IN_SECONDS,
			'display' => __('Once Every Fortnight', 'speedycache'),
		];

		// Monthly (approx 30 days)
		$schedules['speedycache_monthly'] = [
			'interval' => 30 * DAY_IN_SECONDS,
			'display' => __('Once Monthly', 'speedycache'),
		];
		
		return $schedules;
	}
	
	// Deletes binaries
	static function delete_cwebp(){
		
		$binary_dir = wp_upload_dir()['basedir'] .'/speedycache-binary';
		
		if(!file_exists($binary_dir)){
			return;
		}

		$binaries = @scandir($binary_dir);
		$binaries = array_diff($binaries, ['.', '..']);
		
		if(empty($binaries)){
			@rmdir($binary_dir);
			return;
		}
		
		foreach($binaries as $binary){
			if(file_exists($binary_dir.'/'.$binary)){
				@unlink($binary_dir.'/'.$binary);
			}
		}
	}
}
Name	Size	Permission
admin.php	8828 bytes	0644
advanced-cache.php	6628 bytes	0644
ajax.php	30991 bytes	0644
cache.php	15517 bytes	0644
cdn.php	8865 bytes	0644
css.php	6364 bytes	0644
delete.php	13917 bytes	0644
gravatar.php	3194 bytes	0644
htaccess.php	8665 bytes	0644
install.php	4717 bytes	0644
js.php	6012 bytes	0644
preload.php	3449 bytes	0644
promo.php	1838 bytes	0644
settings.php	104289 bytes	0644
util.php	9100 bytes	0644
File Content: util.php

File Content: `util.php`
