Email 邮件

IGeekFan.FreeKit.Email

该包是一个独立的开发包，内部由 MailKit 实现发送邮件。

1. 安装包

dotnet add package IGeekFan.FreeKit.Email

• ConfigureServices 方法

    Services.Configure<MailKitOptions>(Configuration.GetSection("MailKitOptions"));

• appsettings.json

  "MailKitOptions": {
    "Host": "smtp.163.com",
    "Port": "25",
    "EnableSsl": true,
    "UserName": "igeekfan@163.com",
    "Password": "",
    "Domain": ""
  },

• 业务逻辑

    public interface IAccountService
    {
        Task SendEmailCode(RegisterDto registerDto);
    }
    public class AccountService : IAccountService
    {
        private readonly IEmailSender _emailSender;
        private readonly MailKitOptions _mailKitOptions;

        public AccountService(
            IEmailSender emailSender,
            IOptions<MailKitOptions> options)
        {
            _emailSender = emailSender;
            _mailKitOptions = options.Value;
        }
        public async Task SendEmailCode(RegisterDto registerDto)
        {
            var message = new MimeMessage();
            message.From.Add(new MailboxAddress(_mailKitOptions.UserName, _mailKitOptions.UserName));
            message.To.Add(new MailboxAddress(registerDto.Nickname, registerDto.Email));
            message.Subject = $"VVLOG-你的验证码是";

            string uuid = Guid.NewGuid().ToString();
            await RedisHelper.SetAsync("SendEmailCode-" + registerDto.Email, uuid, 30 * 60);

            int rand6Value = new Random().Next(100000, 999999);

            message.Body = new TextPart("html")
            {
                Text = $@"{registerDto.Nickname},您好!</br>你此次验证码如下，请在 30 分钟内输入验证码进行下一步操作。</br>如非你本人操作，请忽略此邮件。</br>{rand6Value}"
            };


            await _emailSender.SendAsync(message);
        }
    }

简单的实体，在发送之前应验证必填项、密码强度和邮件格式等

    public class RegisterDto
    {
        /// <summary>
        /// 昵称
        /// </summary>
        public string Nickname { get; set; }
        /// <summary>
        /// 密码
        /// </summary>
        public string Password { get; set; }
        /// <summary>
        /// 邮件
        /// </summary>
        public string Email { get; set; }
   }

IEmailSender还不能直接使用。

有二种方式

1.使用 ASPNETCore 默认的 DI。

    services.AddTransient<IEmailSender, EmailSender>();

2.由于继承了接口ITransientDependency，可通过IGeekFan.FreeKit.Extras依赖包中，默认的注册机制，通过 Autofac 配置继承此接口的接口将注入到依赖注入的集合中。

• 增加依赖包

dotnet add package IGeekFan.FreeKit.Extras

• 配置依赖

builder.Host
    .UseServiceProviderFactory(new AutofacServiceProviderFactory())
    .ConfigureContainer<ContainerBuilder>((webBuilder, containerBuilder) =>
    {
        containerBuilder.RegisterModule(new FreeKitModule(typeof(FreeKitModule), typeof(Program),typeof(MailKitOptions)))
    });