<?php
namespace W3TC;

class Support_AdminActions {
	/**
	 * Send support request action
	 *
	 * @return void
	 */
	function w3tc_support_send_details() {
		$c = Dispatcher::config();

		$post = array();

		foreach ( $_GET as $p => $v )
			$post[$p] = Util_Request::get( $p );

		$post['user_agent'] = isset( $_SERVER['HTTP_USER_AGENT'] ) ? sanitize_text_field( wp_unslash( $_SERVER['HTTP_USER_AGENT'] ) ) : '';
		$post['version'] = W3TC_VERSION;

		$license_level = 'community';
		if ( Util_Environment::is_w3tc_pro( $c ) )
			$license_level = 'pro';

		$post['license_level'] = $license_level . ' ' .
			$c->get_string( 'plugin.license_key' );


		/**
		 * Add attachments
		 */
		$attachments = array();

		$attach_files = array(
			/**
			 * Attach WP config file
			 */
			Util_Environment::wp_config_path(),

			/**
			 * Attach .htaccess files
			 */
			Util_Rule::get_pgcache_rules_core_path(),
			Util_Rule::get_pgcache_rules_cache_path(),
			Util_Rule::get_browsercache_rules_cache_path(),
			Util_Rule::get_browsercache_rules_no404wp_path(),
			Util_Rule::get_minify_rules_core_path(),
			Util_Rule::get_minify_rules_cache_path()
		);

		/**
		 * Attach config files
		 */
		if ( $handle = opendir( W3TC_CONFIG_DIR ) ) {
			while ( ( $entry = @readdir( $handle ) ) !== false ) {
				if ( $entry == '.' || $entry == '..' || $entry == 'index.html' )
					continue;

				$attach_file[] = W3TC_CONFIG_DIR . '/' . $entry;
			}
			closedir( $handle );
		}


		foreach ( $attach_files as $attach_file ) {
			if ( $attach_file && file_exists( $attach_file ) &&
				!in_array( $attach_file, $attachments ) ) {
				$attachments[] = array(
					'filename' => basename( $attach_file ),
					'content' => file_get_contents( $attach_file )
				);
			}
		}

		/**
		 * Attach server info
		 */
		$server_info = print_r( $this->get_server_info(), true );
		$server_info = str_replace( "\n", "\r\n", $server_info );

		$attachments[] = array(
			'filename' => 'server_info.txt',
			'content' => $server_info
		);

		/**
		 * Attach phpinfo
		 */
		ob_start();
		phpinfo();
		$php_info = ob_get_contents();
		ob_end_clean();

		$attachments[] = array(
			'filename' => 'php_info.html',
			'content' => $php_info
		);

		/**
		 * Attach self-test
		 */
		ob_start();
		$this->self_test();
		$self_test = ob_get_contents();
		ob_end_clean();

		$attachments[] = array(
			'filename' => 'self_test.html',
			'content' => $self_test
		);

		$post['attachments'] = $attachments;

		$response = wp_remote_post( W3TC_SUPPORT_REQUEST_URL, array(
				'body' => $post,
				'timeout' => $c->get_integer( 'timelimit.email_send' )
			) );

		if ( !is_wp_error( $response ) )
			$result = $response['response']['code'] == 200 && $response['body'] == 'ok';
		else {
			$result = false;
		}

		echo $result ? 'ok' : 'error';
	}

	/**
	 * Self test action
	 */
	private function self_test() {
		include W3TC_INC_DIR . '/lightbox/self_test.php';
	}

	/**
	 * Returns server info
	 *
	 * @return array
	 */
	private function get_server_info() {
		global $wp_version, $wp_db_version, $wpdb;

		$wordpress_plugins = get_plugins();
		$wordpress_plugins_active = array();

		foreach ( $wordpress_plugins as $wordpress_plugin_file => $wordpress_plugin ) {
			if ( is_plugin_active( $wordpress_plugin_file ) ) {
				$wordpress_plugins_active[$wordpress_plugin_file] = $wordpress_plugin;
			}
		}

		$mysql_version = $wpdb->get_var( 'SELECT VERSION()' );
		$mysql_variables_result = (array) $wpdb->get_results( 'SHOW VARIABLES', ARRAY_N );
		$mysql_variables = array();

		foreach ( $mysql_variables_result as $mysql_variables_row ) {
			$mysql_variables[$mysql_variables_row[0]] = $mysql_variables_row[1];
		}

		$server_info = array(
			'w3tc' => array(
				'version' => W3TC_VERSION,
				'server' => ( ! empty( $_SERVER['SERVER_SOFTWARE'] ) ? sanitize_text_field( wp_unslash( $_SERVER['SERVER_SOFTWARE'] ) ) : 'Unknown' ),
				'dir' => W3TC_DIR,
				'cache_dir' => W3TC_CACHE_DIR,
				'blog_id' => Util_Environment::blog_id(),
				'home_domain_root_url' => Util_Environment::home_domain_root_url(),
				'home_url_maybe_https' => Util_Environment::home_url_maybe_https(),
				'site_path' => Util_Environment::site_path(),
				'document_root' => Util_Environment::document_root(),
				'site_root' => Util_Environment::site_root(),
				'site_url_uri' => Util_Environment::site_url_uri(),
				'home_url_host' => Util_Environment::home_url_host(),
				'home_url_uri' => Util_Environment::home_url_uri(),
				'network_home_url_uri' => Util_Environment::network_home_url_uri(),
				'host_port' => Util_Environment::host_port(),
				'host' => Util_Environment::host(),
				'wp_config_path' => Util_Environment::wp_config_path()
			),
			'wp' => array(
				'version' => $wp_version,
				'db_version' => $wp_db_version,
				'abspath' => ABSPATH,
				'home' => get_option( 'home' ),
				'siteurl' => get_option( 'siteurl' ),
				'email' => get_option( 'admin_email' ),
				'upload_info' => (array) Util_Http::upload_info(),
				'theme' => Util_Theme::get_current_theme(),
				'wp_cache' => ( ( defined( 'WP_CACHE' ) && WP_CACHE ) ? 'true' : 'false' ),
				'plugins' => $wordpress_plugins_active
			),
			'mysql' => array(
				'version' => $mysql_version,
				'variables' => $mysql_variables
			)
		);

		return $server_info;
	}
}
