root
114 lines
3.2 KiB
PHP
Executable File
114 lines
3.2 KiB
PHP
Executable File
<?php
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/**
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* SHOW_SITE_COUNTRY 允许列表解析与比对
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*/
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require_once __DIR__ . '/CountryCodeNormalizer.php';
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class CountryAllowlist
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{
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/**
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* SHOW_SITE_COUNTRY 是否已配置（非空允许列表 = 开启国家条件）
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*
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* @param string|null $config 默认读取 SHOW_SITE_COUNTRY
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*/
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public static function isEnabled($config = null)
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{
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if ($config === null) {
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$config = defined('SHOW_SITE_COUNTRY') ? SHOW_SITE_COUNTRY : '';
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}
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return self::parse($config) !== [];
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}
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/**
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* 保存前规范化用户输入：兼容中文逗号/分号、顿号、全角空格及多余空白。
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*
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* @param string $config
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*/
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public static function normalizeInput($config)
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{
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$config = trim((string) $config);
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if ($config === '') {
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return '';
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}
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// 全角空格、不间断空格
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$config = preg_replace('/[\x{3000}\x{00A0}]/u', ' ', $config);
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// 常见误输入分隔符统一为英文逗号
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$config = str_replace(['，', ';', '；', '、'], ',', $config);
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// 去掉分隔符两侧空白，合并连续逗号
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$config = preg_replace('/\s*,\s*/', ',', $config);
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$config = preg_replace('/,+/', ',', $config);
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return trim($config, " \t\n\r,");
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}
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/**
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* @param string $config 逗号分隔国家码，如 US,GB,CA
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* @return string[]
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*/
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public static function parse($config)
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{
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$config = self::normalizeInput($config);
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if ($config === '') {
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return [];
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}
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$parts = explode(',', $config);
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$out = [];
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foreach ($parts as $part) {
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$part = trim($part);
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if ($part === '') {
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continue;
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}
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$normalized = CountryCodeNormalizer::toAlpha2($part);
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if ($normalized !== null && $normalized !== '') {
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$out[] = $normalized;
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}
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}
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return array_values(array_unique($out));
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}
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/**
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* 读取并规范化 SHOW_SITE_COUNTRY（大写 ISO2，逗号分隔）
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*
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* @param string|null $config 默认 SHOW_SITE_COUNTRY
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*/
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public static function resolvedConfig($config = null)
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{
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if ($config === null) {
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$config = defined('SHOW_SITE_COUNTRY') ? SHOW_SITE_COUNTRY : '';
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}
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return self::formatForConfig($config);
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}
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/**
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* 保存配置前规范化国家列表字符串（dashboard 写入用，输出大写如 US,GB）
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*
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* @param string $config
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* @return string 如 US,GB
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*/
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public static function formatForConfig($config)
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{
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$list = self::parse($config);
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return implode(',', $list);
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}
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/**
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* @param string|null $countryCode
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* @param string[] $allowlist
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*/
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public static function isAllowed($countryCode, array $allowlist)
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{
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if ($allowlist === []) {
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return true;
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}
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$normalized = CountryCodeNormalizer::toAlpha2($countryCode);
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if ($normalized === null || $normalized === '') {
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return false;
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}
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return in_array($normalized, $allowlist, true);
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}
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}
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