csharp 使用链接方法模式使用C＃.NET发送电子邮件

Posted 2021-05-12

namespace LibMailer {
    using System.Net;
    using System.Net.Mail;

    /// <summary>
    /// Usage
    /// var mailer = new Mailer(host: "smtp.mail.yahoo.com", port: 587)
    ///         .From(address: "[e-mail]").To(address: "[e-mail]")
    ///         .Subject(subject: "Konu")
    ///         .Body(body: "<h1>GÖVDE</h1>", isHtml: true)
    ///         .Html()
    ///         .Login(user: "[e-mail]", password: "y0urP@assw0rd", enableSsl: true)
    ///         .Ssl()
    ///         .Send();
    /// </summary>
    public class Mailer {
        private SmtpClient client = new SmtpClient();
        private NetworkCredential credentials = new NetworkCredential();
        private MailAddress sender { get; set; }
        private MailAddress receiver { get; set; }
        private MailMessage message = new MailMessage();
        public Mailer(string host, int port) {
            client.Host = host;
            client.Port = port;
        }

        public Mailer Login(string user, string password, bool enableSsl = false) {
            credentials.UserName = user;
            credentials.Password = password;

            client.Credentials = credentials;
            client.EnableSsl = enableSsl;

            return this;
        }

        public Mailer Ssl() {
            client.EnableSsl = true;
            return this;
        }

        public Mailer From(string address) {
            sender = new MailAddress(address);
            message.From = sender;

            return this;
        }

        public Mailer To(string address) {
            receiver = new MailAddress(address);
            message.To.Add(receiver);
            return this;
        }

        public Mailer Subject(string subject) {
            message.Subject = subject;
            return this;
        }

        public Mailer Body(string body, bool isHtml = false) {
            message.Body = body;
            message.IsBodyHtml = isHtml;
            return this;
        }

        public Mailer Html() {
            message.IsBodyHtml = true;
            return this;
        }


        public Mailer Send() {
            client.Send(message);
            return this;
        }

        public MailMessage Mail(string from, string to, string subject, string body) {
            var sender = new MailAddress(from);
            var receiver = new MailAddress(to);
            var msg = new MailMessage(from: sender, to: receiver);
            msg.Subject = subject;
            msg.Body = body;
            return msg;
        }

    }


    class Program {
        static void Main(string[] args) {

            new Mailer(host: "smtp.mail.yahoo.com", port: 587)
                .From(address: "[e-mail]").To(address: "[e-mail]")
                .Subject(subject: "Konu")
                .Body(body: "<h1>GÖVDE</h1>", isHtml: true)
                .Login(user: "[e-mail]", password: "y0urP@assw0rd", enableSsl: true)
                .Send();

            new Mailer(host: "smtp.mail.yahoo.com", port: 587)
                .From(address: "[e-mail]").To(address: "[e-mail]")
                .Subject(subject: "Konu")
                .Body(body: "<h1>GÖVDE</h1>", isHtml: true)
                .Html()
                .Login(user: "[e-mail]", password: "y0urP@assw0rd")
                .Ssl()
                .Send();


        }
    }

}