# 示例：Python发送短信前校验
import re

def validate_phone_number(phone):
    # 简单验证手机号格式
    pattern = r'^1[3-9]\d{9}$'  # 中国大陆手机号
    return re.match(pattern, phone) is not None

def send_sms(phone, content):
    if not validate_phone_number(phone):
        raise ValueError("Invalid phone number format")
    
    # 检查敏感词
    if contains_sensitive_words(content):
        raise ValueError("Content contains sensitive words")
    
    # 实际发送逻辑...

# 示例：验证码防刷策略
from datetime import datetime, timedelta

def check_sms_flood(phone):
    # 检查最近1小时内发送次数
    recent_count = get_sms_count(phone, datetime.now() - timedelta(hours=1))
    return recent_count > 5  # 超过5次视为刷单

// Node.js发送短信示例
const axios = require('axios');

async function sendSMS(phone, message) {
    try {
        const response = await axios.post('https://sms-api.example.com/v1/send', {
            phone: phone,
            message: message,
            appId: 'YOUR_APP_ID',
            signature: 'YOUR_SIGNATURE'
        }, {
            headers: {
                'Content-Type': 'application/json'
            }
        });
        return response.data;
    } catch (error) {
        console.error('SMS发送失败:', error.response?.data || error.message);
        throw error;
    }
}

// Java Spring Boot接收短信状态回调
@RestController
@RequestMapping("/sms/callback")
public class SmsCallbackController {
    
    @PostMapping("/status")
    public ResponseEntity<String> handleStatusCallback(
            @RequestBody SmsStatusCallback callback) {
        
        // 处理短信状态报告
        if ("DELIVERED".equals(callback.getStatus())) {
            log.info("短信已送达: {}", callback.getMessageId());
        } else if ("FAILED".equals(callback.getStatus())) {
            log.warn("短信发送失败: {}", callback.getErrorCode());
        }
        
        return ResponseEntity.ok("OK");
    }
}