265 lines
14 KiB
C#
265 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Threading.Tasks;
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using MailKit.Net.Smtp;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Identity.Client;
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using MimeKit;
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using Oqtane.Models;
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using Oqtane.Repository;
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using Oqtane.Shared;
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using MailKit.Security;
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namespace Oqtane.Infrastructure
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{
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public class NotificationJob : HostedServiceBase
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{
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// JobType = "Oqtane.Infrastructure.NotificationJob, Oqtane.Server"
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public NotificationJob(IServiceScopeFactory serviceScopeFactory) : base(serviceScopeFactory)
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{
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Name = "Notification Job";
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Frequency = "m"; // minute
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Interval = 1;
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IsEnabled = false;
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}
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// job is executed for each tenant in installation
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public async override Task<string> ExecuteJobAsync(IServiceProvider provider)
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{
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string log = "";
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// get services
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var siteRepository = provider.GetRequiredService<ISiteRepository>();
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var userRepository = provider.GetRequiredService<IUserRepository>();
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var settingRepository = provider.GetRequiredService<ISettingRepository>();
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var notificationRepository = provider.GetRequiredService<INotificationRepository>();
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// iterate through sites for current tenant
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List<Site> sites = siteRepository.GetSites().ToList();
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foreach (Site site in sites)
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{
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log += "Processing Notifications For Site: " + site.Name + "<br />";
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// get site settings
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var settings = settingRepository.GetSettings(EntityNames.Site, site.SiteId, EntityNames.Host, -1);
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if (!site.IsDeleted && settingRepository.GetSettingValue(settings, "SMTPEnabled", "True") == "True")
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{
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bool valid = true;
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if (settingRepository.GetSettingValue(settings, "SMTPAuthentication", "Basic") == "Basic")
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{
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// basic
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if (settingRepository.GetSettingValue(settings, "SMTPHost", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPPort", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPSender", "") == "")
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{
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log += "SMTP Not Configured Properly In Site Settings - Host, Port, And Sender Are All Required" + "<br />";
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valid = false;
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}
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}
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else
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{
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// oauth
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if (settingRepository.GetSettingValue(settings, "SMTPHost", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPPort", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPAuthority", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPClientId", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPClientSecret", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPScopes", "") == "" ||
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settingRepository.GetSettingValue(settings, "SMTPSender", "") == "")
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{
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log += "SMTP Not Configured Properly In Site Settings - Host, Port, Authority, Client ID, Client Secret, Scopes, And Sender Are All Required" + "<br />";
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valid = false;
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}
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}
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if (valid)
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{
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// construct SMTP Client
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using var client = new SmtpClient();
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var secureSocketOptions = SecureSocketOptions.Auto;
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switch (settingRepository.GetSettingValue(settings, "SMTPSSL", "Auto"))
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{
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case "None":
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secureSocketOptions = SecureSocketOptions.None;
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break;
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case "Auto":
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secureSocketOptions = SecureSocketOptions.Auto;
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break;
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case "StartTls":
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secureSocketOptions = SecureSocketOptions.StartTls;
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break;
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case "SslOnConnect":
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case "True": // legacy setting value
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secureSocketOptions = SecureSocketOptions.SslOnConnect;
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break;
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case "StartTlsWhenAvailable":
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case "False": // legacy setting value
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secureSocketOptions = SecureSocketOptions.StartTlsWhenAvailable;
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break;
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}
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await client.ConnectAsync(settingRepository.GetSettingValue(settings, "SMTPHost", ""),
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int.Parse(settingRepository.GetSettingValue(settings, "SMTPPort", "")),
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secureSocketOptions);
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if (settingRepository.GetSettingValue(settings, "SMTPAuthentication", "Basic") == "Basic")
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{
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// it is possible to use basic without any authentication (not recommended)
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if (settingRepository.GetSettingValue(settings, "SMTPUsername", "") != "" && settingRepository.GetSettingValue(settings, "SMTPPassword", "") != "")
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{
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await client.AuthenticateAsync(settingRepository.GetSettingValue(settings, "SMTPUsername", ""),
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settingRepository.GetSettingValue(settings, "SMTPPassword", ""));
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}
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}
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else
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{
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// oauth authentication
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var confidentialClientApplication = ConfidentialClientApplicationBuilder.Create(settingRepository.GetSettingValue(settings, "SMTPClientId", ""))
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.WithAuthority(settingRepository.GetSettingValue(settings, "SMTPAuthority", ""))
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.WithClientSecret(settingRepository.GetSettingValue(settings, "SMTPClientSecret", ""))
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.Build();
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try
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{
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var result = await confidentialClientApplication.AcquireTokenForClient(settingRepository.GetSettingValue(settings, "SMTPScopes", "").Split(',')).ExecuteAsync();
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var oauth2 = new SaslMechanismOAuth2(settingRepository.GetSettingValue(settings, "SMTPSender", ""), result.AccessToken);
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await client.AuthenticateAsync(oauth2);
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}
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catch (Exception ex)
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{
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log += "SMTP Not Configured Properly In Site Settings - OAuth Token Could Not Be Retrieved From Authority - " + ex.Message + "<br />";
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valid = false;
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}
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}
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if (valid)
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{
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// iterate through undelivered notifications
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int sent = 0;
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List<Notification> notifications = notificationRepository.GetNotifications(site.SiteId, -1, -1).ToList();
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foreach (Notification notification in notifications)
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{
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var fromEmail = notification.FromEmail ?? "";
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var fromName = notification.FromDisplayName ?? "";
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var toEmail = notification.ToEmail ?? "";
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var toName = notification.ToDisplayName ?? "";
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// get sender and receiver information from user information if available
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if ((string.IsNullOrEmpty(fromEmail) || string.IsNullOrEmpty(fromName)) && notification.FromUserId != null)
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{
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var user = userRepository.GetUser(notification.FromUserId.Value);
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if (user != null)
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{
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fromEmail = string.IsNullOrEmpty(fromEmail) ? user.Email ?? "" : fromEmail;
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fromName = string.IsNullOrEmpty(fromName) ? user.DisplayName ?? "" : fromName;
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}
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}
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if ((string.IsNullOrEmpty(toEmail) || string.IsNullOrEmpty(toName)) && notification.ToUserId != null)
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{
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var user = userRepository.GetUser(notification.ToUserId.Value);
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if (user != null)
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{
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toEmail = string.IsNullOrEmpty(toEmail) ? user.Email ?? "" : toEmail;
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toName = string.IsNullOrEmpty(toName) ? user.DisplayName ?? "" : toName;
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}
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}
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// create mailbox addresses
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MailboxAddress to = null;
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MailboxAddress from = null;
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var error = "";
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// sender
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if (settingRepository.GetSettingValue(settings, "SMTPRelay", "False") != "True")
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{
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fromEmail = settingRepository.GetSettingValue(settings, "SMTPSender", "");
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fromName = string.IsNullOrEmpty(fromName) ? site.Name : fromName;
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}
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try
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{
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from = new MailboxAddress(fromName, fromEmail);
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}
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catch
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{
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// parse error creating sender mailbox address
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error += $" Invalid Sender: {fromName} <{fromEmail}>";
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}
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// recipient
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try
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{
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to = new MailboxAddress(toName, toEmail);
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}
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catch
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{
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// parse error creating recipient mailbox address
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error += $" Invalid Recipient: {toName} <{toEmail}>";
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}
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if (from != null && to != null)
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{
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// create mail message
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MimeMessage mailMessage = new MimeMessage();
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mailMessage.From.Add(from);
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mailMessage.To.Add(to);
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// subject
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mailMessage.Subject = notification.Subject;
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//body
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var bodyText = notification.Body;
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if (!bodyText.Contains('<') || !bodyText.Contains('>'))
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{
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// plain text messages should convert line breaks to HTML tags to preserve formatting
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bodyText = bodyText.Replace("\n", "<br />");
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}
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mailMessage.Body = new TextPart("html", System.Text.Encoding.UTF8)
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{
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Text = bodyText
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};
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// send mail
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try
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{
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await client.SendAsync(mailMessage);
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sent++;
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notification.IsDelivered = true;
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notification.DeliveredOn = DateTime.UtcNow;
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notificationRepository.UpdateNotification(notification);
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}
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catch (Exception ex)
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{
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// error
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log += $"Error Sending Notification Id: {notification.NotificationId} - {ex.Message}<br />";
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}
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}
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else
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{
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log += $"Notification Id: {notification.NotificationId} Has An {error} And Has Been Deleted<br />";
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notification.IsDeleted = true;
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notificationRepository.UpdateNotification(notification);
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}
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}
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log += "Notifications Delivered: " + sent + "<br />";
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}
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await client.DisconnectAsync(true);
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}
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}
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else
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{
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log += "Site Deleted Or SMTP Disabled In Site Settings" + "<br />";
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}
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}
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return log;
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}
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}
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}
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