Custom Valet Driver for Wordpress Multisite in Subdirectories

WordPressMultisiteValetDriver

<?php

/*
Valet driver for Wordpress Multisite

Forked from: https://github.com/fewagency/best-practices/blob/master/Wordpress/WordPressMultisiteValetDriver.php

Usage: Drop this file into your ~/.valet/Drivers/ directory. Modify the subfolders variables to include yours.
*/

class WordPressMultisiteValetDriver extends WordPressValetDriver
{

	/**
	 * @var string The subdirectoires you wish to detect and scan for wp-config.php, if deeper under the root directory
	 */
	protected $subfolders = ['public', 'public_html', 'httpdocs', 'cms'];

	/**
	 * @var string The public web directory, if deeper under the root directory
	 */
	protected $public_dir = '';

	/**
	 * @var bool true if site is detected to be multisite
	 */
	protected $multisite = false;

	/**
	 * Determine if the driver serves the request.
	 *
	 * @param  string $sitePath
	 * @param  string $siteName
	 * @param  string $uri
	 * @return bool
	 */
	public function serves($sitePath, $siteName, $uri)
	{
		foreach (array_merge([''], $this->subfolders) as $public_directory) {
			$this->public_dir = $public_directory;
			$wp_config_path = $this->realSitePath($sitePath) . "/wp-config.php";
			if (file_exists($wp_config_path)) {
				// Look for define('MULTISITE', true in wp-config
				$env_path = $sitePath . "/.env";
				if (preg_match("/^define\(\s*('|\")MULTISITE\\1\s*,\s*true\s*\)/mi",
						file_get_contents($wp_config_path))
				    or (file_exists($env_path) and preg_match("/^WP_MULTISITE=true$/mi",
							file_get_contents($env_path)))
				) {
					$this->multisite = true;
				}

				return true;
			}
		}

		return false;
	}

	/**
	 * Determine if the incoming request is for a static file.
	 *
	 * @param  string $sitePath
	 * @param  string $siteName
	 * @param  string $uri
	 * @return string|false
	 */
	public function isStaticFile($sitePath, $siteName, $uri)
	{
		$uri = $this->rewriteMultisite($sitePath, $uri);
		$sitePath = $this->realSitePath($sitePath);

		if ($this->isActualFile($staticFilePath = $sitePath . $uri)) {
			return $staticFilePath;
		}

		return false;
	}

	/**
	 * Get the fully resolved path to the application's front controller.
	 *
	 * @param  string $sitePath
	 * @param  string $siteName
	 * @param  string $uri
	 * @return string
	 */
	public function frontControllerPath($sitePath, $siteName, $uri)
	{
		$uri = $this->rewriteMultisite($sitePath, $uri);
		$sitePath = $this->realSitePath($sitePath);

		return parent::frontControllerPath($sitePath, $siteName, $uri);
	}

	/**
	 * Translate the site path to the actual public directory
	 *
	 * @param $sitePath
	 * @return string
	 */
	protected function realSitePath($sitePath)
	{
		if ($this->public_dir) {
			$sitePath .= "/" . $this->public_dir;
		}

		return $sitePath;
	}

	/**
	 * Imitate the rewrite rules for a multisite .htaccess
	 *
	 * @param $sitePath
	 * @param $uri
	 * @return string
	 */
	protected function rewriteMultisite($sitePath, $uri)
	{
		if ($this->multisite) {
			if (preg_match('/^(.*)?(\/wp-(content|admin|includes).*)/', $uri, $matches)) {
				//RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-(content|admin|includes).*) $2 [L]
				$uri = $matches[2];
			} elseif (preg_match('/^(.*)?(\/.*\.php)$/', $uri, $matches)) {
				//RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
				$uri = $matches[2];
			}
		}

		return $uri;
	}
}