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<?php
/**
* Surge integration file.
*
* @package Activitypub
*/
namespace Activitypub\Integration;
use function Activitypub\is_plugin_active;
/**
* Surge Cache integration.
*
* This class handles the compatibility with the Surge plugin.
*
* @see https://wordpress.org/plugins/surge/
*/
class Surge {
/**
* The pattern to find the Surge cache config constant.
*
* @var string
*/
public static $cache_config_pattern = '/define\s*\(\s*[\'"](WP_CACHE_CONFIG)[\'"]\s*,\s*[\'"](.*?)[\'"]\s*\)\s*;/i';
/**
* Initialize the Surge integration.
*/
public static function init() {
\add_action( 'activate_surge/surge.php', array( self::class, 'add_cache_config' ) );
\add_action( 'deactivate_surge/surge.php', array( self::class, 'remove_cache_config' ) );
\add_filter( 'site_status_tests', array( self::class, 'maybe_add_site_health' ) );
}
/**
* Add the Surge cache config.
*/
public static function add_cache_config() {
// Check if surge is installed and active.
if ( ! is_plugin_active( 'surge/surge.php' ) ) {
return;
}
// Check if the constant already exists.
if ( \defined( 'WP_CACHE_CONFIG' ) ) {
return;
}
$file = self::get_config_file_path();
if ( ! \wp_is_writable( $file ) ) {
return;
}
if ( ! \function_exists( 'WP_Filesystem' ) ) {
require_once ABSPATH . 'wp-admin/includes/file.php';
}
global $wp_filesystem;
\WP_Filesystem();
$config = $wp_filesystem->get_contents( $file );
// Check if the constant already exists.
if ( \preg_match( self::$cache_config_pattern, $config ) ) {
return;
}
// Add a WP_CACHE_CONFIG to wp-config.php.
$anchor = "/* That's all, stop editing!";
if ( false !== \strpos( $config, $anchor ) ) {
$config = \str_replace( $anchor, self::get_cache_config() . PHP_EOL . PHP_EOL . $anchor, $config );
} elseif ( false !== \strpos( $config, '<?php' ) ) {
$config = \str_replace( '<?php', '<?php' . PHP_EOL . PHP_EOL . self::get_cache_config() . PHP_EOL, $config );
}
$wp_filesystem->put_contents( $file, $config, FS_CHMOD_FILE );
}
/**
* Remove the Surge cache config.
*/
public static function remove_cache_config() {
if ( ! \defined( 'WP_CACHE_CONFIG' ) ) {
return;
}
$file = self::get_config_file_path();
if ( ! \wp_is_writable( $file ) ) {
return;
}
global $wp_filesystem;
\WP_Filesystem();
$config = $wp_filesystem->get_contents( $file );
// Remove the define line.
$config = \preg_replace( PHP_EOL . self::$cache_config_pattern . PHP_EOL, '', $config );
$wp_filesystem->put_contents( $file, $config, FS_CHMOD_FILE );
}
/**
* Get the config file.
*
* @return string|false The config file or false.
*/
public static function get_config_file_path() {
$config_file = false;
// phpcs:ignore WordPress.PHP.NoSilencedErrors
if ( @\file_exists( ABSPATH . 'wp-config.php' ) ) {
/** The config file resides in ABSPATH */
$config_file = ABSPATH . 'wp-config.php';
// phpcs:ignore WordPress.PHP.NoSilencedErrors
} elseif ( @\file_exists( \dirname( ABSPATH ) . '/wp-config.php' ) && ! @\file_exists( \dirname( ABSPATH ) . '/wp-settings.php' ) ) {
/** The config file resides one level above ABSPATH but is not part of another installation */
$config_file = \dirname( ABSPATH ) . '/wp-config.php';
}
/**
* Filter the config file path.
*
* @param string|false $config_file The config file path.
*/
return \apply_filters( 'activitypub_surge_cache_config_file', $config_file );
}
/**
* Maybe add the Surge cache config to the site health.
*
* @param array $tests The site health tests.
*
* @return array The site health tests with the Surge cache config test.
*/
public static function maybe_add_site_health( $tests ) {
if ( ! is_plugin_active( 'surge/surge.php' ) ) {
return $tests;
}
$tests['direct']['activitypub_test_surge_integration'] = array(
'label' => \__( 'Surge Test', 'activitypub' ),
'test' => array( self::class, 'test_surge_integration' ),
);
return $tests;
}
/**
* Surge integration test.
*
* @return array The test result.
*/
public static function test_surge_integration() {
$result = array(
'label' => \__( 'Compatibility with Surge', 'activitypub' ),
'status' => 'good',
'badge' => array(
'label' => \__( 'ActivityPub', 'activitypub' ),
'color' => 'green',
),
'description' => \sprintf(
'<p>%s</p>',
\__( 'Surge is well configured to work with ActivityPub.', 'activitypub' )
),
'actions' => '',
'test' => 'test_surge_integration',
);
if ( ! \defined( 'WP_CACHE_CONFIG' ) ) {
$result['status'] = 'critical';
$result['label'] = \__( 'Surge might not be properly configured.', 'activitypub' );
$result['badge']['color'] = 'red';
$result['description'] = \sprintf(
'<p>%s</p>',
\__( 'Surge isn’t currently set up to work with ActivityPub. While this isn’t a major problem, it’s a good idea to enable support. Without it, some technical files (like JSON) might accidentally show up in your website’s cache and be visible to visitors.', 'activitypub' )
);
$result['actions'] = \sprintf(
'<p>%s</p>',
\sprintf(
// translators: %s: Plugin directory path.
\__( 'To enable the ActivityPub integration with Surge, add the following line to your <code>wp-config.php</code> file: <br /><code>%s</code>', 'activitypub' ),
self::get_cache_config()
)
);
}
return $result;
}
/**
* Get the cache config.
*
* @return string The cache config.
*/
public static function get_cache_config() {
return \sprintf( "define( 'WP_CACHE_CONFIG', '%s/integration/surge-cache-config.php' );", \rtrim( ACTIVITYPUB_PLUGIN_DIR, '/' ) );
}
}