41 lines
1.4 KiB
C#
41 lines
1.4 KiB
C#
 
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using MailKit.Net.Smtp;
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using Microsoft.Extensions.Options;
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using MimeKit;
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using PrivaPub.Models;
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namespace PrivaPub.Services
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{
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public interface IMailer
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{
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/// <summary>Sends a plain-text email; throws when SMTP fails, so the job that sends it retries.</summary>
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Task Send(string to, string subject, string body, CancellationToken token);
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}
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// The server's one way to send an email: through the SMTP account in appsettings (AppConfiguration:EmailConfiguration),
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// read as it is now. Only jobs call it, so nobody waits on SMTP.
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public class Mailer : IMailer
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{
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readonly IOptionsMonitor<AppConfiguration> _app;
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public Mailer(IOptionsMonitor<AppConfiguration> app) => _app = app;
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public async Task Send(string to, string subject, string body, CancellationToken token)
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{
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var email = _app.CurrentValue.EmailConfiguration;
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var message = new MimeMessage();
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message.From.Add(new MailboxAddress("PrivaPub", email.SmtpUsername));
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message.To.Add(MailboxAddress.Parse(to));
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message.Subject = subject;
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message.Body = new TextPart("plain") { Text = body };
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using var smtp = new SmtpClient();
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await smtp.ConnectAsync(email.SmtpServer, email.SmtpPort, email.UseSSL, token);
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if (!string.IsNullOrEmpty(email.SmtpPassword))
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await smtp.AuthenticateAsync(email.SmtpUsername, email.SmtpPassword, token);
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await smtp.SendAsync(message, token);
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await smtp.DisconnectAsync(quit: true, token);
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}
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}
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}
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