wordpress-theme-aksrt/src/Sms/SMSProviderAliyun.php

<?php
/**
 * @package AKSRT
 */

namespace AKSRT\Sms;

defined('ABSPATH') || exit;

class SMSProviderAliyun implements ProviderInterface {

    public function get_key(): string {
        return 'aliyun';
    }

    public function get_label(): string {
        return __('阿里云短信', 'aksrt');
    }

    public function validate_config(array $config): array {
        $missing = [];
        if (empty($config['sms_access_key']))     $missing[] = 'sms_access_key';
        if (empty($config['sms_access_secret']))  $missing[] = 'sms_access_secret';
        if (empty($config['sms_sign_name']))       $missing[] = 'sms_sign_name';
        if (empty($config['sms_template_code']))   $missing[] = 'sms_template_code';
        return $missing;
    }

    public function send_code(string $phone, string $code, array $config): array {
        $access_key    = (string) ($config['sms_access_key'] ?? '');
        $access_secret = (string) ($config['sms_access_secret'] ?? '');
        $sign_name     = (string) ($config['sms_sign_name'] ?? '');
        $template_code = (string) ($config['sms_template_code'] ?? '');
        $region_id     = (string) ($config['sms_region_id'] ?? 'cn-hangzhou');

        $params = [
            'PhoneNumbers'  => $phone,
            'SignName'      => $sign_name,
            'TemplateCode'  => $template_code,
            'TemplateParam' => wp_json_encode(['code' => $code]),
        ];

        $result = $this->request($access_key, $access_secret, $region_id, $params);

        if (is_wp_error($result)) {
            $this->log('error', $phone, $result->get_error_message());
            return ['success' => false, 'message' => $result->get_error_message(), 'transport' => 'signed_post'];
        }

        // 对齐 legacy 成功判断：检查 BizId 或 Code === 'OK'
        if (!empty($result['BizId']) || (isset($result['Code']) && $result['Code'] === 'OK')) {
            $this->log('sent', $phone, 'OK');
            return ['success' => true, 'message' => __('验证码已发送', 'aksrt'), 'transport' => 'signed_post'];
        }

        $err_code = $result['Code'] ?? 'Unknown';
        $err_msg  = $result['Message'] ?? __('未知错误', 'aksrt');
        $this->log('error', $phone, "{$err_code}: {$err_msg}");
        return ['success' => false, 'message' => sprintf('阿里云: %s (%s)', $err_msg, $err_code), 'transport' => 'signed_post'];
    }

    public function get_status(array $config): array {
        $missing = $this->validate_config($config);
        return [
            'provider'       => $this->get_key(),
            'configured'     => empty($missing),
            'available'      => !empty($config['sms_enabled']) && empty($missing),
            'verified'       => !empty($config['sms_aliyun_verified']),
            'transport'      => 'signed_post',
            'missing_fields' => $missing,
        ];
    }

    /**
     * 发送阿里云短信 API 请求（POST 方式）
     *
     * 对齐 legacy 的 SignatureHelper 实现：
     * - POST 到 https://dysmsapi.aliyuncs.com/
     * - body 为 Signature=xxx&Key=Value&... 格式
     * - 使用 x-sdk-client header
     *
     * @return array|\WP_Error
     */
    private function request(string $access_key, string $access_secret, string $region_id, array $biz_params) {
        if (!class_exists('AKSRT\\Sms\\SMSSignatureHelper')) {
            return new \WP_Error('sms_helper_missing', '签名助手类未加载');
        }

        $helper = new SMSSignatureHelper();

        return $helper->request(
            $access_key,
            $access_secret,
            'dysmsapi.aliyuncs.com',
            array_merge($biz_params, [
                'RegionId' => $region_id,
                'Action'   => 'SendSms',
                'Version'  => '2017-05-25',
            ]),
            true // HTTPS
        );
    }

    private function log(string $level, string $phone, string $message): void {
        if (!defined('WP_DEBUG') || !WP_DEBUG) return;
        $masked = substr($phone, 0, 3) . '****' . substr($phone, -4);
        error_log(sprintf('[AKSRT SMS] [aliyun] [%s] Phone: %s — %s', $level, $masked, $message));
    }
}