331 lines
12 KiB
Python
331 lines
12 KiB
Python
"""
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腾讯云短信服务
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"""
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import os
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import random
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import uuid
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from datetime import timedelta
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from typing import Optional, Tuple
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from sqlalchemy import select
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from sqlalchemy.ext.asyncio import AsyncSession
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from tencentcloud.common import credential
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from tencentcloud.common.exception.tencent_cloud_sdk_exception import TencentCloudSDKException
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from tencentcloud.sms.v20210111 import sms_client, models as sms_models
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from database.models import SmsVerificationCode, utc_now
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# 腾讯云短信配置
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TENCENT_SMS_SECRET_ID = os.getenv("TENCENT_SMS_SECRET_ID", "")
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TENCENT_SMS_SECRET_KEY = os.getenv("TENCENT_SMS_SECRET_KEY", "")
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TENCENT_SMS_SDK_APP_ID = os.getenv("TENCENT_SMS_SDK_APP_ID", "")
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TENCENT_SMS_SIGN_NAME = os.getenv("TENCENT_SMS_SIGN_NAME", "")
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# 统一使用一个短信模板ID（所有场景共用）
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TENCENT_SMS_TEMPLATE_ID = os.getenv("TENCENT_SMS_TEMPLATE_ID", "")
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# 模板参数配置：1=仅验证码，2=验证码+过期时间（默认2）
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TENCENT_SMS_TEMPLATE_PARAM_COUNT = int(os.getenv("TENCENT_SMS_TEMPLATE_PARAM_COUNT", "2"))
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# 验证码配置
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CODE_LENGTH = 6 # 验证码长度
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CODE_EXPIRE_MINUTES = 5 # 验证码过期时间（分钟）
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RATE_LIMIT_SECONDS = 60 # 发送频率限制（秒）
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def generate_verification_code() -> str:
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"""生成6位随机数字验证码"""
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return ''.join([str(random.randint(0, 9)) for _ in range(CODE_LENGTH)])
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def get_template_id_by_purpose(purpose: str) -> str:
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"""获取短信模板ID（所有场景共用同一个模板）"""
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return TENCENT_SMS_TEMPLATE_ID
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def send_sms_via_tencent(phone: str, code: str, purpose: str) -> Tuple[bool, str]:
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"""
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通过腾讯云发送短信验证码
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Args:
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phone: 手机号
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code: 验证码
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purpose: 用途
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Returns:
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Tuple[bool, str]: (是否发送成功, 错误消息)
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"""
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# 检查配置是否完整
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if not TENCENT_SMS_SECRET_ID or not TENCENT_SMS_SECRET_KEY:
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error_msg = "腾讯云短信服务配置不完整，请设置 TENCENT_SMS_SECRET_ID 和 TENCENT_SMS_SECRET_KEY 环境变量"
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print(f"错误: {error_msg}")
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return False, error_msg
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if not TENCENT_SMS_SDK_APP_ID or not TENCENT_SMS_SIGN_NAME or not TENCENT_SMS_TEMPLATE_ID:
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error_msg = "腾讯云短信服务配置不完整，请设置 TENCENT_SMS_SDK_APP_ID、TENCENT_SMS_SIGN_NAME 和 TENCENT_SMS_TEMPLATE_ID 环境变量"
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print(f"错误: {error_msg}")
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return False, error_msg
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# 创建认证对象和客户端（复用）
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cred = credential.Credential(TENCENT_SMS_SECRET_ID, TENCENT_SMS_SECRET_KEY)
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client = sms_client.SmsClient(cred, "ap-guangzhou")
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# 尝试发送短信，如果参数不匹配则自动重试另一种配置
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param_configs = [
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(1, [code]), # 单参数：仅验证码
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(2, [code, str(CODE_EXPIRE_MINUTES)]) # 双参数：验证码+过期时间
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]
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# 优先使用配置的参数数量
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if TENCENT_SMS_TEMPLATE_PARAM_COUNT == 1:
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param_configs = [param_configs[0], param_configs[1]] # 先试单参数，再试双参数
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else:
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param_configs = [param_configs[1], param_configs[0]] # 先试双参数，再试单参数
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last_error = None
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for param_count, template_params in param_configs:
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try:
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# 创建请求对象
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req = sms_models.SendSmsRequest()
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req.SmsSdkAppId = TENCENT_SMS_SDK_APP_ID
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req.SignName = TENCENT_SMS_SIGN_NAME
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req.TemplateId = get_template_id_by_purpose(purpose)
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req.TemplateParamSet = template_params
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req.PhoneNumberSet = [f"+86{phone}"]
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print(f"调试: 尝试发送短信 - 模板ID={req.TemplateId}, 参数数量={param_count}, 参数={template_params}")
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# 发送短信
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resp = client.SendSms(req)
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# 检查发送结果
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if resp.SendStatusSet and len(resp.SendStatusSet) > 0:
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status = resp.SendStatusSet[0]
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if status.Code == "Ok":
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print(f"调试: 短信发送成功，使用的参数数量={param_count}")
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return True, ""
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else:
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error_msg = f"短信发送失败: {status.Code} - {status.Message}"
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print(f"调试: {error_msg}")
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last_error = error_msg
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# 如果是参数不匹配错误，尝试下一个配置
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if "TemplateParamSetNotMatchApprovedTemplate" in status.Code or "FailedOperation.TemplateParamSetNotMatchApprovedTemplate" in status.Code:
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print(f"调试: 参数不匹配，尝试下一个配置...")
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continue
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else:
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return False, error_msg
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last_error = "短信发送失败: 未收到有效响应"
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print(f"调试: {last_error}")
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except TencentCloudSDKException as e:
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error_msg = f"腾讯云SDK异常: {e}"
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print(f"调试: {error_msg}")
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last_error = error_msg
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# 如果是参数不匹配错误，尝试下一个配置
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if "TemplateParamSetNotMatchApprovedTemplate" in str(e) or "FailedOperation.TemplateParamSetNotMatchApprovedTemplate" in str(e):
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print(f"调试: 参数不匹配，尝试下一个配置...")
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continue
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# 其他错误直接返回
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if "SmsSdkAppIdVerifyFail" in str(e) or "UnauthorizedOperation.SmsSdkAppIdVerifyFail" in str(e):
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error_msg = "短信服务配置错误: SmsSdkAppId 验证失败，请检查 TENCENT_SMS_SDK_APP_ID 是否正确，以及该 AppId 是否属于当前 API 密钥对应的账户"
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elif "InvalidCredential" in str(e) or "secret id should not be none" in str(e).lower():
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error_msg = "短信服务配置错误: API 密钥无效，请检查 TENCENT_SMS_SECRET_ID 和 TENCENT_SMS_SECRET_KEY 是否正确"
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elif "UnauthorizedOperation" in str(e):
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error_msg = f"短信服务授权失败: {e.message if hasattr(e, 'message') else str(e)}"
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return False, error_msg
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except Exception as e:
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error_msg = f"发送短信异常: {str(e)}"
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print(f"调试: {error_msg}")
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return False, error_msg
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# 所有配置都失败了
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if "TemplateParamSetNotMatchApprovedTemplate" in str(last_error) or "FailedOperation.TemplateParamSetNotMatchApprovedTemplate" in str(last_error):
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error_msg = f"短信模板参数不匹配: 已尝试单参数和双参数配置，均失败。请检查腾讯云控制台中的模板配置（模板ID: {get_template_id_by_purpose(purpose)}），确认模板实际需要的参数数量和格式，然后设置正确的 TENCENT_SMS_TEMPLATE_PARAM_COUNT 环境变量（1=仅验证码，2=验证码+过期时间）"
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else:
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error_msg = last_error or "短信发送失败"
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return False, error_msg
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async def check_rate_limit(db: AsyncSession, phone: str) -> Tuple[bool, int]:
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"""
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检查发送频率限制
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Args:
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db: 数据库会话
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phone: 手机号
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Returns:
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Tuple[bool, int]: (是否允许发送, 剩余等待秒数)
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"""
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# 查询最近的验证码记录
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stmt = select(SmsVerificationCode).where(
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SmsVerificationCode.phone == phone
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).order_by(
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SmsVerificationCode.created_at.desc()
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).limit(1)
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result = await db.execute(stmt)
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recent_code = result.scalar_one_or_none()
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if not recent_code:
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return True, 0
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# 计算距离上次发送的时间
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now = utc_now()
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time_diff = (now - recent_code.created_at).total_seconds()
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if time_diff < RATE_LIMIT_SECONDS:
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remaining = int(RATE_LIMIT_SECONDS - time_diff)
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return False, remaining
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return True, 0
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async def send_verification_code(
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db: AsyncSession,
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phone: str,
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purpose: str,
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ip_address: Optional[str] = None
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) -> Tuple[bool, str, int]:
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"""
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发送验证码
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Args:
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db: 数据库会话
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phone: 手机号
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purpose: 用途 (register/login/reset_password/change_phone)
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ip_address: 请求IP地址
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Returns:
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Tuple[bool, str, int]: (是否成功, 消息, 过期时间秒数)
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"""
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# 检查频率限制
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can_send, remaining = await check_rate_limit(db, phone)
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if not can_send:
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return False, f"发送过于频繁，请{remaining}秒后再试", 0
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# 生成验证码
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code = generate_verification_code()
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# 发送短信
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success, error_msg = send_sms_via_tencent(phone, code, purpose)
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if not success:
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# 如果错误消息为空，使用默认消息
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if not error_msg:
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error_msg = "短信发送失败，请稍后重试"
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return False, error_msg, 0
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# 保存到数据库
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expires_at = utc_now() + timedelta(minutes=CODE_EXPIRE_MINUTES)
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verification_code = SmsVerificationCode(
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id=str(uuid.uuid4()),
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phone=phone,
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code=code,
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purpose=purpose,
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expires_at=expires_at,
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ip_address=ip_address
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)
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db.add(verification_code)
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await db.commit()
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return True, "验证码已发送", CODE_EXPIRE_MINUTES * 60
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async def verify_code(
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db: AsyncSession,
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phone: str,
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code: str,
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purpose: str
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) -> Tuple[bool, str]:
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"""
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验证验证码
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Args:
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db: 数据库会话
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phone: 手机号
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code: 验证码
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purpose: 用途
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Returns:
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Tuple[bool, str]: (是否验证成功, 消息)
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"""
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# 查询最新的未使用验证码
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stmt = select(SmsVerificationCode).where(
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SmsVerificationCode.phone == phone,
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SmsVerificationCode.purpose == purpose,
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SmsVerificationCode.is_used == False,
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SmsVerificationCode.is_expired == False
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).order_by(
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SmsVerificationCode.created_at.desc()
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).limit(1)
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result = await db.execute(stmt)
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verification = result.scalar_one_or_none()
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if not verification:
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return False, "验证码不存在或已使用"
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# 检查是否过期
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now = utc_now()
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if now > verification.expires_at:
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verification.is_expired = True
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await db.commit()
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return False, "验证码已过期"
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# 验证验证码
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if verification.code != code:
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return False, "验证码错误"
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# 标记为已使用
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verification.is_used = True
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verification.verified_at = now
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await db.commit()
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return True, "验证成功"
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async def cleanup_expired_codes(db: AsyncSession) -> int:
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"""
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清理过期的验证码
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Args:
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db: 数据库会话
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Returns:
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int: 清理的记录数
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"""
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from sqlalchemy import delete
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now = utc_now()
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# 标记过期的验证码
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stmt = select(SmsVerificationCode).where(
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SmsVerificationCode.expires_at < now,
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SmsVerificationCode.is_expired == False
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)
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result = await db.execute(stmt)
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expired_codes = result.scalars().all()
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count = 0
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for code in expired_codes:
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code.is_expired = True
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count += 1
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await db.commit()
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# 删除7天前的记录
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seven_days_ago = now - timedelta(days=7)
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delete_stmt = delete(SmsVerificationCode).where(
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SmsVerificationCode.created_at < seven_days_ago
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)
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result = await db.execute(delete_stmt)
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old_codes_count = result.rowcount
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await db.commit()
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return count + old_codes_count
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