1079 lines
39 KiB
PHP
1079 lines
39 KiB
PHP
<?php
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/**
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* AKSRT 人机验证（Cloud Captcha）核心。
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*
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* 唯一配置源：option `aksrt_captcha_config`。
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* 闭环契约：
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* aksrt_get_captcha_config() -> aksrt_is_captcha_enabled_for(scene)
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* -> aksrt_render_captcha(scene) -> [data-aksrt-captcha-config] 挂载点
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* -> captcha-front.js（public bundle）-> 客户端 AKSRTCaptcha + token
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* -> 业务入口 aksrt_require_captcha(scene, $payload) -> proceed/fail。
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*
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* 仅支持云厂商：tencent / aliyun / cloudflare / geetest。
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* 不含本地图形码 / 本地滑块。
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*
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* @package AKSRT
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*/
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defined('ABSPATH') || exit;
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const AKSRT_CAPTCHA_BROWSER_COOKIE = 'aksrt_captcha_browser';
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const AKSRT_CAPTCHA_CHALLENGE_PREFIX = 'aksrt_captcha_challenge_';
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const AKSRT_CAPTCHA_PROOF_PREFIX = 'aksrt_captcha_proof_';
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const AKSRT_CAPTCHA_CHALLENGE_TTL = 10 * MINUTE_IN_SECONDS;
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const AKSRT_CAPTCHA_PROOF_TTL = 5 * MINUTE_IN_SECONDS;
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function aksrt_captcha_browser_id(): string {
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$value = isset($_COOKIE[AKSRT_CAPTCHA_BROWSER_COOKIE])
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? sanitize_text_field(wp_unslash((string) $_COOKIE[AKSRT_CAPTCHA_BROWSER_COOKIE]))
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: '';
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if (preg_match('/^[A-Za-z0-9_-]{32,80}$/', $value) === 1) {
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return $value;
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}
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$value = rtrim(strtr(base64_encode(random_bytes(32)), '+/', '-_'), '=');
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if (!headers_sent()) {
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setcookie(AKSRT_CAPTCHA_BROWSER_COOKIE, $value, [
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'expires' => time() + MONTH_IN_SECONDS,
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'path' => defined('COOKIEPATH') && COOKIEPATH ? COOKIEPATH : '/',
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'domain' => defined('COOKIE_DOMAIN') ? COOKIE_DOMAIN : '',
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'secure' => is_ssl(),
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'httponly' => true,
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'samesite' => 'Lax',
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]);
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}
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$_COOKIE[AKSRT_CAPTCHA_BROWSER_COOKIE] = $value;
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return $value;
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}
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function aksrt_captcha_challenge_key(string $token): string {
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return AKSRT_CAPTCHA_CHALLENGE_PREFIX . hash('sha256', trim($token));
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}
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function aksrt_captcha_challenge_material(string $scene, string $provider, string $nonce, int $timestamp): string {
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$host = strtolower((string) wp_parse_url(home_url('/'), PHP_URL_HOST));
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return sanitize_key($scene) . '|' . sanitize_key($provider) . '|'
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. hash('sha256', aksrt_captcha_browser_id()) . '|' . $host . '|' . $timestamp . '|' . $nonce;
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}
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function aksrt_captcha_issue_challenge(string $scene, string $provider): string {
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$nonce = rtrim(strtr(base64_encode(random_bytes(32)), '+/', '-_'), '=');
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$timestamp = time();
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$material = aksrt_captcha_challenge_material($scene, $provider, $nonce, $timestamp);
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$signature = hash_hmac('sha256', $material, wp_salt('auth'));
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return $nonce . '.' . $timestamp . '.' . $signature;
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}
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function aksrt_captcha_challenge_valid(string $token, string $scene, string $provider): bool {
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$parts = explode('.', trim($token));
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if (count($parts) !== 3) {
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return false;
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}
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[$nonce, $raw_timestamp, $signature] = $parts;
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if (preg_match('/^[A-Za-z0-9_-]{32,80}$/', $nonce) !== 1 || preg_match('/^\d{10}$/', $raw_timestamp) !== 1 || preg_match('/^[a-f0-9]{64}$/', $signature) !== 1) {
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return false;
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}
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$timestamp = (int) $raw_timestamp;
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if ($timestamp > time() + 60 || $timestamp < time() - AKSRT_CAPTCHA_CHALLENGE_TTL) {
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return false;
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}
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$expected = hash_hmac(
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'sha256',
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aksrt_captcha_challenge_material($scene, $provider, $nonce, $timestamp),
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wp_salt('auth')
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);
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return hash_equals($expected, $signature);
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}
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function aksrt_captcha_validate_challenge(string $token, string $scene, string $provider, bool $claim = false): bool {
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if (!aksrt_captcha_challenge_valid($token, $scene, $provider)) {
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return false;
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}
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$key = aksrt_captcha_challenge_key($token);
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if (!$claim) {
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$current = get_option($key, null);
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if (is_numeric($current) && (int) $current < time()) {
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delete_option($key);
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return true;
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}
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return $current === null;
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}
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$current = get_option($key, null);
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if (is_numeric($current) && (int) $current < time()) {
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delete_option($key);
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}
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return add_option($key, time() + AKSRT_CAPTCHA_CHALLENGE_TTL, '', false);
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}
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function aksrt_captcha_challenge_release(string $token): void {
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delete_option(aksrt_captcha_challenge_key($token));
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}
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function aksrt_captcha_rate_limited(string $scope, string $subject, int $limit = 30, int $ttl = 60): bool {
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$key = 'aksrt_captcha_rl_' . md5($scope . '|' . strtolower($subject));
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$count = (int) get_transient($key);
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if ($count >= $limit) {
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return true;
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}
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set_transient($key, $count + 1, $ttl);
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return false;
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}
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function aksrt_captcha_proof_key(string $token): string {
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return AKSRT_CAPTCHA_PROOF_PREFIX . hash('sha256', trim($token));
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}
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function aksrt_captcha_issue_proof(string $scene, string $provider): string {
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$token = rtrim(strtr(base64_encode(random_bytes(32)), '+/', '-_'), '=');
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$row = [
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'scene' => sanitize_key($scene),
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'provider' => sanitize_key($provider),
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'browser_hash' => hash('sha256', aksrt_captcha_browser_id()),
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'host' => strtolower((string) wp_parse_url(home_url('/'), PHP_URL_HOST)),
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'expires_at' => time() + AKSRT_CAPTCHA_PROOF_TTL,
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];
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if (!add_option(aksrt_captcha_proof_key($token), $row, '', false)) {
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throw new \RuntimeException('captcha_proof_issue_failed');
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}
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return $token;
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}
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function aksrt_captcha_consume_proof(string $token, string $scene, string $provider): bool {
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if ($token === '') {
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return false;
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}
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$key = aksrt_captcha_proof_key($token);
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$row = get_option($key, null);
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$host = strtolower((string) wp_parse_url(home_url('/'), PHP_URL_HOST));
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$valid = is_array($row)
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&& (int) ($row['expires_at'] ?? 0) >= time()
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&& hash_equals(sanitize_key($scene), (string) ($row['scene'] ?? ''))
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&& hash_equals(sanitize_key($provider), (string) ($row['provider'] ?? ''))
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&& hash_equals(hash('sha256', aksrt_captcha_browser_id()), (string) ($row['browser_hash'] ?? ''))
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&& $host !== ''
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&& hash_equals($host, (string) ($row['host'] ?? ''));
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if (!$valid) {
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if (is_array($row) && (int) ($row['expires_at'] ?? 0) < time()) {
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delete_option($key);
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}
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return false;
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}
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global $wpdb;
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$deleted = $wpdb->query($wpdb->prepare(
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"DELETE FROM {$wpdb->options} WHERE option_name = %s AND option_value = %s",
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$key,
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maybe_serialize($row)
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));
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if ($deleted !== 1) {
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return false;
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}
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wp_cache_delete($key, 'options');
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return true;
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}
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function aksrt_captcha_cleanup_records(int $limit = 200): int {
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global $wpdb;
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$prefixes = [AKSRT_CAPTCHA_CHALLENGE_PREFIX, AKSRT_CAPTCHA_PROOF_PREFIX];
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$removed = 0;
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foreach ($prefixes as $prefix) {
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$rows = $wpdb->get_results($wpdb->prepare(
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"SELECT option_name, option_value FROM {$wpdb->options} WHERE option_name LIKE %s LIMIT %d",
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$wpdb->esc_like($prefix) . '%',
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max(1, min(1000, $limit))
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), ARRAY_A);
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foreach (is_array($rows) ? $rows : [] as $row) {
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$value = maybe_unserialize($row['option_value'] ?? '');
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$expires_at = is_array($value) ? (int) ($value['expires_at'] ?? 0) : (int) $value;
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if ($expires_at > 0 && $expires_at < time() && delete_option((string) $row['option_name'])) {
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$removed++;
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}
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}
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}
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return $removed;
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}
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add_action('init', static function (): void {
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if (wp_rand(1, 100) === 1) {
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aksrt_captcha_cleanup_records();
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}
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}, 30);
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add_action('rest_api_init', static function (): void {
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register_rest_route('aksrt/v1', '/captcha/challenge', [
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'methods' => 'POST',
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'permission_callback' => '__return_true',
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'callback' => static function (\WP_REST_Request $request) {
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$data = $request->get_json_params();
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$scene = sanitize_key((string) (is_array($data) ? ($data['scene'] ?? '') : ''));
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if (!aksrt_is_captcha_enabled_for($scene)) {
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return new \WP_Error('aksrt_captcha_scene', __('人机验证场景未启用', 'aksrt'), ['status' => 400]);
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}
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$cfg = aksrt_get_captcha_config();
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$provider = $cfg['active_provider'];
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if ($provider === '' || !aksrt_captcha_provider_is_configured($provider, $cfg[$provider] ?? [])) {
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return new \WP_Error('aksrt_captcha_config', __('人机验证配置不完整', 'aksrt'), ['status' => 503]);
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}
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if (aksrt_captcha_rate_limited('challenge:' . $scene, aksrt_get_client_ip(), 20, MINUTE_IN_SECONDS)) {
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return new \WP_Error('aksrt_captcha_rate', __('请求过于频繁，请稍后再试', 'aksrt'), ['status' => 429]);
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}
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return new \WP_REST_Response([
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'success' => true,
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'data' => ['challenge' => aksrt_captcha_issue_challenge($scene, $provider)],
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], 200);
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},
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]);
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register_rest_route('aksrt/v1', '/captcha/exchange', [
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'methods' => 'POST',
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'permission_callback' => '__return_true',
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'callback' => static function (\WP_REST_Request $request) {
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$data = $request->get_json_params();
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$data = is_array($data) ? $data : [];
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$scene = sanitize_key((string) ($data['scene'] ?? ''));
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if (!aksrt_is_captcha_enabled_for($scene)) {
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return new \WP_Error('aksrt_captcha_scene', __('人机验证场景未启用', 'aksrt'), ['status' => 400]);
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}
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$cfg = aksrt_get_captcha_config();
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$provider = $cfg['active_provider'];
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$pcfg = $cfg[$provider] ?? [];
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if ($provider === '' || !aksrt_captcha_provider_is_configured($provider, $pcfg)) {
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return new \WP_Error('aksrt_captcha_config', __('人机验证配置不完整', 'aksrt'), ['status' => 503]);
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}
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$challenge = sanitize_text_field((string) ($data['aksrt_captcha_challenge'] ?? ''));
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if (!aksrt_captcha_validate_challenge($challenge, $scene, $provider, false)) {
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return new \WP_Error('aksrt_captcha_challenge', __('人机验证会话无效或已过期，请重试', 'aksrt'), ['status' => 400]);
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}
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// 原子占用 challenge：并发请求只有首个能进入厂商验签，其余直接 409，避免同一票据放大厂商调用。
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if (!aksrt_captcha_validate_challenge($challenge, $scene, $provider, true)) {
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return new \WP_Error('aksrt_captcha_replayed', __('人机验证会话已在验证中，请重试', 'aksrt'), ['status' => 409]);
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}
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$result = aksrt_verify_captcha_provider($provider, $pcfg, $data, aksrt_get_client_ip(), $scene);
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if (is_wp_error($result)) {
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aksrt_captcha_challenge_release($challenge);
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return $result;
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}
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try {
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$proof = aksrt_captcha_issue_proof($scene, $provider);
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} catch (\Throwable $e) {
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aksrt_captcha_challenge_release($challenge);
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return new \WP_Error('aksrt_captcha_proof', __('无法创建人机验证凭证，请重试', 'aksrt'), ['status' => 500]);
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}
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return new \WP_REST_Response([
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'success' => true,
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'data' => ['proof' => $proof],
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], 200);
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},
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]);
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});
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function aksrt_captcha_provider_metadata(): array {
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return [
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'tencent' => [
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'label' => __('腾讯云 Captcha', 'aksrt'),
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'fields' => [
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'secret_id' => ['default' => '', 'required' => true],
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'secret_key' => ['default' => '', 'required' => true, 'secret' => true],
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'app_id' => ['default' => '', 'required' => true],
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'app_secret_key' => ['default' => '', 'required' => true, 'secret' => true],
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],
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],
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'aliyun' => [
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'label' => __('阿里云 CAPTCHA 2.0', 'aksrt'),
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'fields' => [
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'region' => ['default' => 'cn', 'required' => true, 'values' => ['cn', 'sgp']],
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'prefix' => ['default' => '', 'required' => true],
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'scene_id' => ['default' => '', 'required' => true],
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'access_key_id' => ['default' => '', 'required' => true],
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'access_key_secret' => ['default' => '', 'required' => true, 'secret' => true],
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],
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],
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'cloudflare' => [
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'label' => __('Cloudflare Turnstile', 'aksrt'),
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'fields' => [
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'site_key' => ['default' => '', 'required' => true],
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'secret_key' => ['default' => '', 'required' => true, 'secret' => true],
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'theme' => ['default' => 'auto', 'values' => ['auto', 'light', 'dark']],
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'size' => ['default' => 'normal', 'values' => ['normal', 'compact']],
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],
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],
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'geetest' => [
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'label' => __('极验 GeeTest', 'aksrt'),
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'fields' => [
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'captcha_id' => ['default' => '', 'required' => true],
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'captcha_key' => ['default' => '', 'required' => true, 'secret' => true],
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'product' => ['default' => 'bind', 'values' => ['bind', 'float', 'popup']],
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],
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],
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];
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}
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/**
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* 支持的验证服务商。
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*/
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function aksrt_captcha_providers(): array {
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return array_keys(aksrt_captcha_provider_metadata());
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}
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/**
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* 服务商字段白名单与默认值。
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*/
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function aksrt_captcha_provider_defaults(string $provider): array {
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$fields = aksrt_captcha_provider_metadata()[$provider]['fields'] ?? [];
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$defaults = [];
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foreach ($fields as $key => $meta) {
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$defaults[$key] = $meta['default'] ?? '';
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}
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return $defaults;
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}
|
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/**
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* 服务商 secret 字段。
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*/
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function aksrt_captcha_provider_secret_fields(string $provider): array {
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$fields = aksrt_captcha_provider_metadata()[$provider]['fields'] ?? [];
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return array_values(array_keys(array_filter($fields, static fn(array $meta): bool => !empty($meta['secret']))));
|
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}
|
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/**
|
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* 按集中元数据规范化服务商配置，丢弃未知键。
|
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*/
|
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function aksrt_captcha_sanitize_provider_config(string $provider, $raw): array {
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$meta = aksrt_captcha_provider_metadata()[$provider]['fields'] ?? [];
|
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if ($meta === []) {
|
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return [];
|
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}
|
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$raw = is_array($raw) ? $raw : [];
|
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$clean = aksrt_captcha_provider_defaults($provider);
|
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foreach ($meta as $key => $field) {
|
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if (!array_key_exists($key, $raw) || is_array($raw[$key]) || is_object($raw[$key])) {
|
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continue;
|
||
}
|
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$value = sanitize_text_field((string) $raw[$key]);
|
||
if (!empty($field['values']) && !in_array($value, $field['values'], true)) {
|
||
continue;
|
||
}
|
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$clean[$key] = $value;
|
||
}
|
||
return $clean;
|
||
}
|
||
|
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/**
|
||
* 人机验证场景白名单。
|
||
*/
|
||
function aksrt_captcha_scenes(): array {
|
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return [
|
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'comment' => __('发表评论', 'aksrt'),
|
||
'login' => __('用户登录', 'aksrt'),
|
||
'register' => __('用户注册', 'aksrt'),
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||
'bind' => __('绑定第三方', 'aksrt'),
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'bind_phone' => __('绑定手机', 'aksrt'),
|
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'lostpassword' => __('找回密码', 'aksrt'),
|
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'change_password' => __('修改密码', 'aksrt'),
|
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'change_email' => __('更改邮箱', 'aksrt'),
|
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'download' => __('资源下载', 'aksrt'),
|
||
'signin' => __('每日签到', 'aksrt'),
|
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'front_submit' => __('前台投稿', 'aksrt'),
|
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'tip_user' => __('打赏用户', 'aksrt'),
|
||
'after_sale_apply' => __('申请售后', 'aksrt'),
|
||
'after_sale_cancel' => __('撤销售后', 'aksrt'),
|
||
];
|
||
}
|
||
|
||
/**
|
||
* 默认配置结构。
|
||
*/
|
||
function aksrt_captcha_default_config(): array {
|
||
$config = [
|
||
'enabled' => false,
|
||
'active_provider' => '',
|
||
'enabled_scenarios' => [],
|
||
];
|
||
foreach (aksrt_captcha_providers() as $provider) {
|
||
$config[$provider] = aksrt_captcha_provider_defaults($provider);
|
||
}
|
||
return $config;
|
||
}
|
||
|
||
/**
|
||
* Sanitize a list of captcha scene keys against the whitelist.
|
||
*
|
||
* @param mixed $raw
|
||
* @return array<int, string>
|
||
*/
|
||
function aksrt_captcha_sanitize_scene_list($raw): array {
|
||
$list = is_array($raw) ? $raw : [];
|
||
$clean = [];
|
||
foreach ($list as $scene) {
|
||
$scene = sanitize_key((string) $scene);
|
||
if ($scene !== '' && array_key_exists($scene, aksrt_captcha_scenes()) && !in_array($scene, $clean, true)) {
|
||
$clean[] = $scene;
|
||
}
|
||
}
|
||
return array_values($clean);
|
||
}
|
||
|
||
/**
|
||
* 获取人机验证完整配置（规范化，不合并历史脏键）。
|
||
*
|
||
* 结果在同一请求内缓存；后台保存后调用 aksrt_captcha_config_reset() 失效。
|
||
*
|
||
* @return array
|
||
*/
|
||
function aksrt_get_captcha_config(): array {
|
||
$cache =& $GLOBALS['aksrt_captcha_config_cache'];
|
||
if (is_array($cache)) {
|
||
return $cache;
|
||
}
|
||
|
||
$stored = get_option('aksrt_captcha_config', []);
|
||
$cfg = array_merge(aksrt_captcha_default_config(), is_array($stored) ? $stored : []);
|
||
|
||
$provider = isset($cfg['active_provider']) ? sanitize_key((string) $cfg['active_provider']) : '';
|
||
if (!in_array($provider, aksrt_captcha_providers(), true)) {
|
||
$provider = '';
|
||
}
|
||
|
||
$enabled = aksrt_captcha_sanitize_scene_list($cfg['enabled_scenarios'] ?? []);
|
||
|
||
$result = [
|
||
'enabled' => !empty($cfg['enabled']),
|
||
'active_provider' => $provider,
|
||
'enabled_scenarios' => $enabled,
|
||
];
|
||
foreach (aksrt_captcha_providers() as $p) {
|
||
$result[$p] = aksrt_captcha_sanitize_provider_config($p, $cfg[$p] ?? []);
|
||
}
|
||
|
||
$cache = $result;
|
||
return $result;
|
||
}
|
||
|
||
/**
|
||
* 使请求内的配置缓存失效（后台保存路径调用）。
|
||
*/
|
||
function aksrt_captcha_config_reset(): void {
|
||
$GLOBALS['aksrt_captcha_config_cache'] = null;
|
||
}
|
||
|
||
/**
|
||
* 各服务商必填字段。
|
||
*/
|
||
function aksrt_captcha_required_fields(string $provider): array {
|
||
$fields = aksrt_captcha_provider_metadata()[$provider]['fields'] ?? [];
|
||
return array_values(array_keys(array_filter($fields, static fn(array $meta): bool => !empty($meta['required']))));
|
||
}
|
||
|
||
/**
|
||
* 当前服务商必填凭据是否齐全（避免空 captcha_id 打到第三方 403）。
|
||
*/
|
||
function aksrt_captcha_provider_is_configured(string $provider, array $pcfg = []): bool {
|
||
if (!in_array($provider, aksrt_captcha_providers(), true)) {
|
||
return false;
|
||
}
|
||
$required = aksrt_captcha_required_fields($provider);
|
||
if (empty($required)) {
|
||
return false;
|
||
}
|
||
foreach ($required as $field) {
|
||
if (!isset($pcfg[$field]) || trim((string) $pcfg[$field]) === '') {
|
||
return false;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 指定场景是否启用人机验证。
|
||
*
|
||
* @param string $scene 见 aksrt_captcha_scenes()
|
||
* @return bool
|
||
*/
|
||
function aksrt_is_captcha_enabled_for($scene): bool {
|
||
$scene = sanitize_key((string) $scene);
|
||
if (!array_key_exists($scene, aksrt_captcha_scenes())) {
|
||
return false;
|
||
}
|
||
|
||
$cfg = aksrt_get_captcha_config();
|
||
if (empty($cfg['enabled'])) {
|
||
return false;
|
||
}
|
||
|
||
return in_array($scene, $cfg['enabled_scenarios'], true);
|
||
}
|
||
|
||
/**
|
||
* 业务入口统一调用：仅显式关闭或未勾选场景放行；启用场景 fail-closed。
|
||
*
|
||
* @param string $scene 场景
|
||
* @param array $payload 客户端提交的验证字段
|
||
* @return true|\WP_Error 成功返回 true，失败返回 WP_Error
|
||
*/
|
||
function aksrt_require_captcha(string $scene, array $payload = []) {
|
||
if (!aksrt_is_captcha_enabled_for($scene)) {
|
||
return true;
|
||
}
|
||
|
||
$cfg = aksrt_get_captcha_config();
|
||
$provider = $cfg['active_provider'];
|
||
if ($provider === '' || !aksrt_captcha_provider_is_configured($provider, $cfg[$provider] ?? [])) {
|
||
return aksrt_captcha_error('aksrt_captcha_config', __('人机验证配置不完整，请联系站点管理员', 'aksrt'));
|
||
}
|
||
|
||
$proof = sanitize_text_field((string) ($payload['aksrt_captcha_proof'] ?? ''));
|
||
if (!aksrt_captcha_consume_proof($proof, $scene, $provider)) {
|
||
return aksrt_captcha_error('aksrt_captcha_proof', __('人机验证凭证无效、已过期或已使用，请重试', 'aksrt'));
|
||
}
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 后台摘要：enabled / provider / configured / 场景命中状态。
|
||
*/
|
||
function aksrt_get_captcha_status_summary(): array {
|
||
$cfg = aksrt_get_captcha_config();
|
||
$provider = $cfg['active_provider'];
|
||
$scenes = [];
|
||
foreach (aksrt_captcha_scenes() as $key => $label) {
|
||
$scenes[$key] = aksrt_is_captcha_enabled_for($key);
|
||
}
|
||
return [
|
||
'enabled' => !empty($cfg['enabled']),
|
||
'provider' => $provider,
|
||
'configured' => $provider !== '' && aksrt_captcha_provider_is_configured($provider, $cfg[$provider] ?? []),
|
||
'scenes' => $scenes,
|
||
];
|
||
}
|
||
|
||
/**
|
||
* 凭据未配齐时的后台警告（已启用场景会 fail-closed，必须补全配置）。
|
||
*/
|
||
add_action('admin_notices', static function () {
|
||
if (!current_user_can('manage_options')) {
|
||
return;
|
||
}
|
||
$cfg = aksrt_get_captcha_config();
|
||
if (empty($cfg['enabled']) || $cfg['active_provider'] === '') {
|
||
return;
|
||
}
|
||
$provider = $cfg['active_provider'];
|
||
if (aksrt_captcha_provider_is_configured($provider, $cfg[$provider] ?? [])) {
|
||
return;
|
||
}
|
||
echo '<div class="notice notice-error"><p>' . esc_html(sprintf(
|
||
/* translators: %s: captcha provider key */
|
||
__('人机验证服务商「%s」已启用但凭据未配齐，已启用场景将拒绝请求。请到「功能&权限 → 人机验证」补全配置。', 'aksrt'),
|
||
$provider
|
||
)) . '</p></div>';
|
||
});
|
||
|
||
// ============================================================
|
||
// 客户端真实 IP（穿透 CDN / 代理）
|
||
// ============================================================
|
||
|
||
function aksrt_get_client_ip(): string {
|
||
$remote = isset($_SERVER['REMOTE_ADDR']) ? (string) $_SERVER['REMOTE_ADDR'] : '';
|
||
|
||
// 信任代理名单：过滤返回非空 CIDR/IP 列表时，仅当 REMOTE_ADDR 命中名单
|
||
// 才采纳 CDN / 反代头；否则客户端可伪造这些头绕过 IP 维度的风控。
|
||
$trusted = apply_filters('aksrt_trusted_proxies', []);
|
||
if (is_array($trusted) && $trusted !== [] && $remote !== '' && !aksrt_ip_in_list($remote, $trusted)) {
|
||
return $remote;
|
||
}
|
||
|
||
// Prefer CDN / reverse-proxy headers (Cloudflare first), then generic proxies.
|
||
$keys = [
|
||
'HTTP_CF_CONNECTING_IP',
|
||
'HTTP_TRUE_CLIENT_IP',
|
||
'HTTP_X_FORWARDED_FOR',
|
||
'HTTP_X_REAL_IP',
|
||
'HTTP_CLIENT_IP',
|
||
];
|
||
foreach ($keys as $key) {
|
||
if (empty($_SERVER[$key])) {
|
||
continue;
|
||
}
|
||
// X-Forwarded-For may be a chain: client, proxy1, proxy2 — take first valid.
|
||
$parts = explode(',', (string) $_SERVER[$key]);
|
||
foreach ($parts as $part) {
|
||
$ip = trim($part);
|
||
// Strip IPv6 brackets / port noise occasionally injected by proxies.
|
||
if (str_starts_with($ip, '[') && str_contains($ip, ']')) {
|
||
$ip = substr($ip, 1, strpos($ip, ']') - 1);
|
||
} elseif (substr_count($ip, ':') === 1 && str_contains($ip, '.')) {
|
||
// IPv4:port
|
||
$ip = explode(':', $ip, 2)[0];
|
||
}
|
||
if (filter_var($ip, FILTER_VALIDATE_IP)) {
|
||
return $ip;
|
||
}
|
||
}
|
||
}
|
||
return isset($_SERVER['REMOTE_ADDR']) ? (string) $_SERVER['REMOTE_ADDR'] : '0.0.0.0';
|
||
}
|
||
|
||
/**
|
||
* IP 是否命中精确 IP 或 CIDR 名单（IPv4 与 IPv6）。
|
||
*
|
||
* @param string $ip 待判定 IP。
|
||
* @param array $list 精确 IP / CIDR 段列表。
|
||
*/
|
||
function aksrt_ip_in_list(string $ip, array $list): bool {
|
||
foreach ($list as $entry) {
|
||
$entry = trim((string) $entry);
|
||
if ($entry === '') {
|
||
continue;
|
||
}
|
||
if (!str_contains($entry, '/')) {
|
||
if (strcasecmp($entry, $ip) === 0) {
|
||
return true;
|
||
}
|
||
continue;
|
||
}
|
||
[$subnet, $prefix] = explode('/', $entry, 2);
|
||
$prefix = (int) $prefix;
|
||
$ip_binary = @inet_pton($ip);
|
||
$subnet_binary = @inet_pton($subnet);
|
||
if ($ip_binary === false || $subnet_binary === false || strlen($ip_binary) !== strlen($subnet_binary)) {
|
||
continue;
|
||
}
|
||
$max_bits = strlen($ip_binary) * 8;
|
||
if ($prefix < 0 || $prefix > $max_bits) {
|
||
continue;
|
||
}
|
||
$full_bytes = intdiv($prefix, 8);
|
||
$remain_bits = $prefix % 8;
|
||
if ($full_bytes > 0 && substr($ip_binary, 0, $full_bytes) !== substr($subnet_binary, 0, $full_bytes)) {
|
||
continue;
|
||
}
|
||
if ($remain_bits > 0) {
|
||
$mask = chr((0xFF << (8 - $remain_bits)) & 0xFF);
|
||
if ((substr($ip_binary, $full_bytes, 1) & $mask) !== (substr($subnet_binary, $full_bytes, 1) & $mask)) {
|
||
continue;
|
||
}
|
||
}
|
||
return true;
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// Native wp-comments-post + any path that omits comment_author_IP.
|
||
// Ensures comment_author_IP (and thus aksrt_comment_addr) is the real client IP behind CDN.
|
||
add_filter('pre_comment_user_ip', static function ($ip) {
|
||
$resolved = aksrt_get_client_ip();
|
||
return ($resolved !== '' && $resolved !== '0.0.0.0') ? $resolved : $ip;
|
||
}, 5);
|
||
|
||
// ============================================================
|
||
// 腾讯云 API 3.0 TC3-HMAC-SHA256 签名
|
||
// ============================================================
|
||
|
||
function aksrt_tencent_tc3_sign($secret_id, $secret_key, $service, $timestamp, $date, $action, $version, $payload): array {
|
||
$content_type = 'application/json; charset=utf-8';
|
||
$host = 'captcha.tencentcloudapi.com';
|
||
$payload_hash = hash('sha256', $payload);
|
||
$canonical_headers = "content-type:{$content_type}\nhost:{$host}\n";
|
||
$signed_headers = 'content-type;host';
|
||
$canonical_request = "POST\n/\n\n{$canonical_headers}\n{$signed_headers}\n{$payload_hash}";
|
||
$credential_scope = "{$date}/{$service}/tc3_request";
|
||
$string_to_sign = "TC3-HMAC-SHA256\n{$timestamp}\n{$credential_scope}\n" . hash('sha256', $canonical_request);
|
||
|
||
$secret_date = hash_hmac('sha256', $date, 'TC3' . $secret_key, true);
|
||
$secret_service = hash_hmac('sha256', $service, $secret_date, true);
|
||
$secret_signing = hash_hmac('sha256', 'tc3_request', $secret_service, true);
|
||
$signature = hash_hmac('sha256', $string_to_sign, $secret_signing);
|
||
|
||
$authorization = 'TC3-HMAC-SHA256 '
|
||
. "Credential={$secret_id}/{$credential_scope}, "
|
||
. "SignedHeaders={$signed_headers}, "
|
||
. "Signature={$signature}";
|
||
|
||
return [
|
||
'Authorization' => $authorization,
|
||
'Content-Type' => $content_type,
|
||
'Host' => $host,
|
||
'X-TC-Action' => $action,
|
||
'X-TC-Timestamp'=> (string) $timestamp,
|
||
'X-TC-Version' => $version,
|
||
'X-TC-Region' => '',
|
||
];
|
||
}
|
||
|
||
/**
|
||
* 阿里云 OpenAPI POP Signature v1.0 (HMAC-SHA1)。
|
||
*/
|
||
function aksrt_aliyun_afs_sign(array $params, string $secret): string {
|
||
ksort($params);
|
||
$canonicalized = '';
|
||
foreach ($params as $k => $v) {
|
||
$canonicalized .= '&' . rawurlencode((string) $k) . '=' . rawurlencode((string) $v);
|
||
}
|
||
$string_to_sign = 'POST&%2F&' . rawurlencode(substr($canonicalized, 1));
|
||
return base64_encode(hash_hmac('sha1', $string_to_sign, $secret . '&', true));
|
||
}
|
||
|
||
// ============================================================
|
||
// 服务端二次校验
|
||
// ============================================================
|
||
|
||
/**
|
||
* 记录传输层 / 厂商原始错误细节，供站点排查；对用户只暴露通用文案。
|
||
*/
|
||
function aksrt_captcha_log(string $provider, string $detail): void {
|
||
error_log('[AKSRT Captcha] ' . $provider . ': ' . $detail);
|
||
}
|
||
|
||
function aksrt_captcha_error(string $code, string $message, array $data = []): \WP_Error {
|
||
return new \WP_Error($code, $message, $data);
|
||
}
|
||
|
||
/**
|
||
* Require a successful 2xx JSON response from a captcha provider.
|
||
*
|
||
* @return array|\WP_Error
|
||
*/
|
||
function aksrt_captcha_remote_json(string $provider, $response) {
|
||
if (is_wp_error($response)) {
|
||
aksrt_captcha_log($provider, $response->get_error_message());
|
||
return aksrt_captcha_error('aksrt_captcha_transport', __('人机验证服务暂不可用，请稍后重试', 'aksrt'));
|
||
}
|
||
$status = (int) wp_remote_retrieve_response_code($response);
|
||
if ($status < 200 || $status >= 300) {
|
||
aksrt_captcha_log($provider, 'HTTP ' . $status . ': ' . substr((string) wp_remote_retrieve_body($response), 0, 500));
|
||
return aksrt_captcha_error('aksrt_captcha_http', __('人机验证服务暂不可用，请稍后重试', 'aksrt'), ['status' => $status]);
|
||
}
|
||
$body = json_decode(wp_remote_retrieve_body($response), true);
|
||
if (!is_array($body)) {
|
||
aksrt_captcha_log($provider, 'unparsable response');
|
||
return aksrt_captcha_error('aksrt_captcha_response', __('人机验证服务暂不可用，请稍后重试', 'aksrt'));
|
||
}
|
||
return $body;
|
||
}
|
||
|
||
/**
|
||
* Execute one provider verification with an explicit configuration.
|
||
*
|
||
* @return true|\WP_Error
|
||
*/
|
||
function aksrt_verify_captcha_provider(string $provider, array $pcfg, array $post_data, string $client_ip, string $scene = '', string $action = 'aksrt-verify') {
|
||
if (!in_array($provider, aksrt_captcha_providers(), true)) {
|
||
return aksrt_captcha_error('aksrt_captcha_provider', __('未知的人机验证服务商', 'aksrt'));
|
||
}
|
||
if (!aksrt_captcha_provider_is_configured($provider, $pcfg)) {
|
||
return aksrt_captcha_error('aksrt_captcha_config', __('验证码配置不完整', 'aksrt'));
|
||
}
|
||
|
||
switch ($provider) {
|
||
case 'tencent':
|
||
return aksrt_verify_tencent($pcfg, $post_data, $client_ip);
|
||
case 'cloudflare':
|
||
return aksrt_verify_cloudflare($pcfg, $post_data, $client_ip, $scene, $action);
|
||
case 'geetest':
|
||
return aksrt_verify_geetest($pcfg, $post_data);
|
||
case 'aliyun':
|
||
return aksrt_verify_aliyun($pcfg, $post_data);
|
||
}
|
||
|
||
return aksrt_captcha_error('aksrt_captcha_provider', __('未知的人机验证服务商', 'aksrt'));
|
||
}
|
||
|
||
/**
|
||
* 腾讯云 Captcha 2.0（DescribeCaptchaResult + TC3-HMAC-SHA256）。
|
||
*
|
||
* @return true|\WP_Error
|
||
*/
|
||
function aksrt_verify_tencent(array $pcfg, array $post_data, string $client_ip) {
|
||
$ticket = (string) ($post_data['tencent_ticket'] ?? '');
|
||
$randstr = (string) ($post_data['tencent_randstr'] ?? '');
|
||
if ($ticket === '' || $randstr === '') {
|
||
return aksrt_captcha_error('aksrt_captcha_missing', __('缺少验证参数', 'aksrt'));
|
||
}
|
||
if (str_starts_with($ticket, 'trerror_')) {
|
||
return aksrt_captcha_error('aksrt_captcha_disaster_ticket', __('验证码 SDK 异常，请刷新页面重试（容灾票据）', 'aksrt'));
|
||
}
|
||
|
||
$secret_id = (string) ($pcfg['secret_id'] ?? '');
|
||
$secret_key = (string) ($pcfg['secret_key'] ?? '');
|
||
if ($secret_id === '' || $secret_key === '') {
|
||
return aksrt_captcha_error('aksrt_captcha_config', __('验证码配置不完整：缺少云 API 密钥 (SecretId/SecretKey)', 'aksrt'));
|
||
}
|
||
|
||
$timestamp = time();
|
||
$date = gmdate('Y-m-d', $timestamp);
|
||
$payload = wp_json_encode([
|
||
'CaptchaType' => 9,
|
||
'CaptchaAppId' => (int) ($pcfg['app_id'] ?? 0),
|
||
'AppSecretKey' => (string) ($pcfg['app_secret_key'] ?? ''),
|
||
'Ticket' => $ticket,
|
||
'Randstr' => $randstr,
|
||
'UserIp' => $client_ip,
|
||
]);
|
||
|
||
$headers = aksrt_tencent_tc3_sign($secret_id, $secret_key, 'captcha', $timestamp, $date, 'DescribeCaptchaResult', '2019-07-22', $payload);
|
||
|
||
$resp = wp_remote_post('https://captcha.tencentcloudapi.com/', [
|
||
'timeout' => 5,
|
||
'headers' => $headers,
|
||
'body' => $payload,
|
||
]);
|
||
$body = aksrt_captcha_remote_json('tencent', $resp);
|
||
if (is_wp_error($body)) {
|
||
return $body;
|
||
}
|
||
if (isset($body['Response']['Error'])) {
|
||
$err = $body['Response']['Error'];
|
||
aksrt_captcha_log('tencent', ($err['Code'] ?? 'unknown') . ': ' . ($err['Message'] ?? ''));
|
||
return aksrt_captcha_error('aksrt_captcha_provider_error', __('人机验证服务暂不可用，请稍后重试', 'aksrt'));
|
||
}
|
||
|
||
$resp_data = $body['Response'] ?? [];
|
||
$captcha_code = (int) ($resp_data['CaptchaCode'] ?? 0);
|
||
if ($captcha_code === 1) {
|
||
return true;
|
||
}
|
||
|
||
$messages = [
|
||
0 => '验证未通过',
|
||
7 => 'Randstr 不合法',
|
||
8 => 'Ticket 已过期（有效期 5 分钟）',
|
||
9 => 'Ticket 被重复使用',
|
||
15 => 'Ticket 不合法（解密失败）',
|
||
16 => 'CaptchaAppId 与 Ticket 不匹配',
|
||
21 => '票据校验异常（风控拦截）',
|
||
100 => '参数校验失败（AppId/SecretKey/Ticket 不匹配）',
|
||
];
|
||
$msg = (string) ($resp_data['CaptchaMsg'] ?? ($messages[$captcha_code] ?? '未知错误'));
|
||
aksrt_captcha_log('tencent', $msg . " (CaptchaCode: {$captcha_code})");
|
||
return aksrt_captcha_error('aksrt_captcha_rejected', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
|
||
/**
|
||
* Cloudflare Turnstile siteverify。校验 action 与 cdata（场景）绑定，防 token 转用。
|
||
*
|
||
* @return true|\WP_Error
|
||
*/
|
||
function aksrt_verify_cloudflare(array $pcfg, array $post_data, string $client_ip, string $scene = '', string $action = 'aksrt-verify') {
|
||
$token = (string) ($post_data['cf_turnstile_response'] ?? '');
|
||
if ($token === '' || strlen($token) < 10) {
|
||
return aksrt_captcha_error('aksrt_captcha_missing', __('缺少验证参数', 'aksrt'));
|
||
}
|
||
|
||
$resp = wp_remote_post('https://challenges.cloudflare.com/turnstile/v0/siteverify', [
|
||
'timeout' => 5,
|
||
'body' => [
|
||
'secret' => (string) ($pcfg['secret_key'] ?? ''),
|
||
'response' => $token,
|
||
'remoteip' => $client_ip,
|
||
],
|
||
]);
|
||
$body = aksrt_captcha_remote_json('cloudflare', $resp);
|
||
if (is_wp_error($body)) {
|
||
return $body;
|
||
}
|
||
if (empty($body['success'])) {
|
||
aksrt_captcha_log('cloudflare', 'siteverify failed: ' . implode(', ', (array) ($body['error-codes'] ?? [])));
|
||
return aksrt_captcha_error('aksrt_captcha_rejected', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
|
||
if (!array_key_exists('action', $body) || (string) $body['action'] !== $action) {
|
||
aksrt_captcha_log('cloudflare', 'action mismatch: ' . (string) ($body['action'] ?? '<missing>') . ' != ' . $action);
|
||
return aksrt_captcha_error('aksrt_captcha_action', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
if (!array_key_exists('cdata', $body) || (string) $body['cdata'] !== $scene) {
|
||
aksrt_captcha_log('cloudflare', 'cdata mismatch: ' . (string) ($body['cdata'] ?? '<missing>') . ' != ' . $scene);
|
||
return aksrt_captcha_error('aksrt_captcha_cdata', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
|
||
$expected_host = strtolower((string) wp_parse_url(home_url('/'), PHP_URL_HOST));
|
||
$response_host = strtolower(trim((string) ($body['hostname'] ?? '')));
|
||
if ($expected_host === '' || $response_host === '' || !hash_equals($expected_host, $response_host)) {
|
||
aksrt_captcha_log('cloudflare', 'hostname mismatch: ' . ($response_host ?: '<missing>') . ' != ' . ($expected_host ?: '<missing>'));
|
||
return aksrt_captcha_error('aksrt_captcha_hostname', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
/**
|
||
* 极验 GeeTest v4 validate。
|
||
*
|
||
* @return true|\WP_Error
|
||
*/
|
||
function aksrt_verify_geetest(array $pcfg, array $post_data) {
|
||
$lot_number = (string) ($post_data['geetest_lot_number'] ?? '');
|
||
$captcha_output = (string) ($post_data['geetest_captcha_output'] ?? '');
|
||
$pass_token = (string) ($post_data['geetest_pass_token'] ?? '');
|
||
$gen_time = (string) ($post_data['geetest_gen_time'] ?? '');
|
||
if ($lot_number === '' || $captcha_output === '' || $pass_token === '') {
|
||
return aksrt_captcha_error('aksrt_captcha_missing', __('缺少验证参数', 'aksrt'));
|
||
}
|
||
|
||
$captcha_key = (string) ($pcfg['captcha_key'] ?? '');
|
||
$sign_token = hash_hmac('sha256', $lot_number, $captcha_key);
|
||
|
||
$resp = wp_remote_post('https://gcaptcha4.geetest.com/validate', [
|
||
'timeout' => 5,
|
||
'body' => [
|
||
'captcha_id' => (string) ($pcfg['captcha_id'] ?? ''),
|
||
'lot_number' => $lot_number,
|
||
'captcha_output' => $captcha_output,
|
||
'pass_token' => $pass_token,
|
||
'gen_time' => $gen_time,
|
||
'sign_token' => $sign_token,
|
||
],
|
||
]);
|
||
|
||
$body = aksrt_captcha_remote_json('geetest', $resp);
|
||
if (is_wp_error($body)) {
|
||
return $body;
|
||
}
|
||
if (($body['result'] ?? '') === 'success') {
|
||
return true;
|
||
}
|
||
aksrt_captcha_log('geetest', 'validate failed: ' . (string) ($body['reason'] ?? ($body['msg'] ?? 'unknown')));
|
||
return aksrt_captcha_error('aksrt_captcha_rejected', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
|
||
/**
|
||
* 阿里云 CAPTCHA 2.0 V3 (VerifyIntelligentCaptcha)。
|
||
*
|
||
* @return true|\WP_Error
|
||
*/
|
||
function aksrt_verify_aliyun(array $pcfg, array $post_data) {
|
||
$captcha_verify_param = (string) ($post_data['aliyun_captcha_verify_param'] ?? '');
|
||
if ($captcha_verify_param === '') {
|
||
return aksrt_captcha_error('aksrt_captcha_missing', __('缺少验证参数 (captchaVerifyParam)', 'aksrt'));
|
||
}
|
||
|
||
$region = (string) ($pcfg['region'] ?? 'cn');
|
||
$endpoint = $region === 'sgp'
|
||
? 'captcha.ap-southeast-1.aliyuncs.com'
|
||
: 'captcha.cn-shanghai.aliyuncs.com';
|
||
|
||
$params = [
|
||
'AccessKeyId' => (string) ($pcfg['access_key_id'] ?? ''),
|
||
'Action' => 'VerifyIntelligentCaptcha',
|
||
'Format' => 'JSON',
|
||
'SignatureMethod' => 'HMAC-SHA1',
|
||
'SignatureVersion' => '1.0',
|
||
'SignatureNonce' => wp_generate_uuid4(),
|
||
'Timestamp' => gmdate('Y-m-d\TH:i:s\Z'),
|
||
'Version' => '2023-03-05',
|
||
'CaptchaVerifyParam' => $captcha_verify_param,
|
||
];
|
||
if (!empty($pcfg['scene_id'])) {
|
||
$params['SceneId'] = (string) $pcfg['scene_id'];
|
||
}
|
||
$params['Signature'] = aksrt_aliyun_afs_sign($params, (string) ($pcfg['access_key_secret'] ?? ''));
|
||
|
||
$resp = wp_remote_post('https://' . $endpoint . '/', [
|
||
'timeout' => 5,
|
||
'body' => $params,
|
||
]);
|
||
|
||
$body = aksrt_captcha_remote_json('aliyun', $resp);
|
||
if (is_wp_error($body)) {
|
||
return $body;
|
||
}
|
||
if (!empty($body['Success'])) {
|
||
$verify_result = $body['Result']['VerifyResult'] ?? false;
|
||
if ($verify_result === true) {
|
||
return true;
|
||
}
|
||
$code_messages = [
|
||
'F001' => '疑似攻击请求，风险策略不通过',
|
||
'F002' => '验证参数为空',
|
||
'F003' => '验证参数格式不合法',
|
||
'F004' => '测试模式配置为不通过',
|
||
'F005' => '场景 ID 不合法',
|
||
'F006' => '场景 ID 与配置不匹配',
|
||
'F008' => '验证数据重复提交',
|
||
'F009' => '检测到虚拟设备环境',
|
||
'F010' => '同 IP 访问频率超限',
|
||
'F011' => '同设备访问频率超限',
|
||
'F012' => 'SceneID 与前端配置不一致',
|
||
'F014' => '无初始化记录或已过期（20 分钟）',
|
||
'F015' => '验证交互不通过',
|
||
'F018' => 'CaptchaVerifyParam 重复使用',
|
||
'F019' => '验证请求超时（90 秒）',
|
||
'F020' => 'CaptchaVerifyParam 与场景 ID 不匹配',
|
||
];
|
||
$verify_code = (string) ($body['Result']['VerifyCode'] ?? '');
|
||
$detail = $code_messages[$verify_code] ?? '未知错误 (' . ($verify_code ?: 'N/A') . ')';
|
||
aksrt_captcha_log('aliyun', 'verify rejected: ' . $detail);
|
||
return aksrt_captcha_error('aksrt_captcha_rejected', __('人机验证未通过，请重试', 'aksrt'));
|
||
}
|
||
|
||
aksrt_captcha_log('aliyun', 'api failed: ' . (string) ($body['Message'] ?? 'unknown'));
|
||
return aksrt_captcha_error('aksrt_captcha_provider_error', __('人机验证服务暂不可用，请稍后重试', 'aksrt'));
|
||
}
|
||
|
||
// ============================================================
|
||
// 前端渲染（挂载点 + data 配置，运行时在 public bundle 的 captcha-front.js）
|
||
// ============================================================
|
||
|
||
/**
|
||
* 渲染人机验证挂载点。未启用场景直接返回。
|
||
*
|
||
* 挂载点自带 JSON 配置，由 captcha-front.js（public bundle）扫描激活。
|
||
*/
|
||
function aksrt_render_captcha($scene = 'comment') {
|
||
$scene = sanitize_key((string) $scene);
|
||
if (!aksrt_is_captcha_enabled_for($scene)) {
|
||
return;
|
||
}
|
||
|
||
$cfg = aksrt_get_captcha_config();
|
||
$provider = $cfg['active_provider'];
|
||
$pcfg = $cfg[$provider] ?? [];
|
||
|
||
if (!aksrt_captcha_provider_is_configured($provider, $pcfg)) {
|
||
if (current_user_can('manage_options')) {
|
||
echo '<div class="aksrt-captcha-misconfig" style="font-size:12px;color:#d03050;margin:8px 0;">';
|
||
echo esc_html(sprintf(
|
||
/* translators: %s: captcha provider key */
|
||
__('人机验证服务商「%s」已启用但凭据未配齐，当前场景将拒绝提交。请到「功能&权限 → 人机验证」补全配置。', 'aksrt'),
|
||
$provider
|
||
));
|
||
echo '</div>';
|
||
}
|
||
return;
|
||
}
|
||
|
||
$uid = 'aksrt-captcha-' . $scene . '-' . wp_unique_id();
|
||
$vid = 'captcha_verified_' . $scene . '_' . wp_unique_id();
|
||
|
||
$js_config = [
|
||
'provider' => $provider,
|
||
'scene' => $scene,
|
||
'uid' => $uid,
|
||
'vid' => $vid,
|
||
'challenge_url' => rest_url('aksrt/v1/captcha/challenge'),
|
||
'exchange_url' => rest_url('aksrt/v1/captcha/exchange'),
|
||
'tc' => ['app_id' => (string) ($pcfg['app_id'] ?? '')],
|
||
'cf' => [
|
||
'site_key' => (string) ($pcfg['site_key'] ?? ''),
|
||
'theme' => (string) ($pcfg['theme'] ?? 'auto'),
|
||
'size' => (string) ($pcfg['size'] ?? 'normal'),
|
||
],
|
||
'gt' => [
|
||
'captcha_id' => trim((string) ($pcfg['captcha_id'] ?? '')),
|
||
'product' => (string) ($pcfg['product'] ?? 'bind'),
|
||
],
|
||
'al' => [
|
||
'region' => (string) ($pcfg['region'] ?? 'cn'),
|
||
'prefix' => (string) ($pcfg['prefix'] ?? ''),
|
||
'scene_id' => (string) ($pcfg['scene_id'] ?? ''),
|
||
],
|
||
];
|
||
?>
|
||
<div class="aksrt-captcha-wrap" data-provider="<?php echo esc_attr($provider); ?>" data-scene="<?php echo esc_attr($scene); ?>" data-aksrt-captcha-config="<?php echo esc_attr(wp_json_encode($js_config, JSON_UNESCAPED_UNICODE)); ?>">
|
||
<div id="<?php echo esc_attr($uid); ?>" class="aksrt-captcha-box" style="display:none"></div>
|
||
<input type="hidden" name="captcha_verified" id="<?php echo esc_attr($vid); ?>" value="0">
|
||
<input type="hidden" name="aksrt_captcha_challenge" value="">
|
||
<input type="hidden" name="aksrt_captcha_proof" value="">
|
||
</div>
|
||
<?php
|
||
}
|