New: Mailgun connection

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Skyler Mäntysaari 2021-04-23 02:37:28 +03:00 committed by GitHub
parent 8d2d9078ff
commit 55752a6c62
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4 changed files with 190 additions and 0 deletions

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using System;
using System.Collections.Generic;
using FluentValidation.Results;
using NLog;
namespace NzbDrone.Core.Notifications.Mailgun
{
public class MailGun : NotificationBase<MailgunSettings>
{
private readonly IMailgunProxy _proxy;
private readonly Logger _logger;
public MailGun(IMailgunProxy proxy, Logger logger)
{
_proxy = proxy;
_logger = logger;
}
public override string Name => "Mailgun";
public override string Link => "https://mailgun.com";
public override void OnGrab(GrabMessage grabMessage)
{
_proxy.SendNotification(EPISODE_GRABBED_TITLE, grabMessage.Message, Settings);
}
public override void OnDownload(DownloadMessage downloadMessage)
{
_proxy.SendNotification(EPISODE_DOWNLOADED_TITLE, downloadMessage.Message, Settings);
}
public override void OnHealthIssue(HealthCheck.HealthCheck healthCheckMessage)
{
_proxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheckMessage.Message, Settings);
}
public override ValidationResult Test()
{
var failures = new List<ValidationFailure>();
try
{
const string title = "Test Notification";
const string body = "This is a test message from Sonarr, though Mailgun.";
_proxy.SendNotification(title, body, Settings);
_logger.Info("Successsfully sent email though Mailgun.");
}
catch (Exception ex)
{
_logger.Error(ex, "Unable to send test message though Mailgun.");
failures.Add(new ValidationFailure("", "Unable to send test message though Mailgun."));
}
return new ValidationResult(failures);
}
}
}

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using System;
using NzbDrone.Common.Exceptions;
namespace NzbDrone.Core.Notifications.Mailgun
{
public class MailgunException : NzbDroneException
{
public MailgunException(string message) : base (message) { }
public MailgunException(string message, Exception innerException, params object[] args)
: base(message, innerException, args) { }
}
}

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using System.Net;
using NLog;
using NzbDrone.Common.Http;
using HttpMethod = NzbDrone.Common.Http.HttpMethod;
namespace NzbDrone.Core.Notifications.Mailgun {
public interface IMailgunProxy
{
void SendNotification(string tittle, string message, MailgunSettings settings);
}
public class MailgunProxy : IMailgunProxy
{
private readonly IHttpClient _httpClient;
private readonly Logger _logger;
private const string BaseUrlEu = "https://api.eu.mailgun.net/v3";
private const string BaseUrlUs = "https://api.mailgun.net/v3";
public MailgunProxy(IHttpClient httpClient, Logger logger)
{
_httpClient = httpClient;
_logger = logger;
}
public void SendNotification(string title, string message, MailgunSettings settings)
{
try
{
var request = BuildRequest(settings, $"{settings.SenderDomain}/messages", HttpMethod.POST,
title, message).Build();
_httpClient.Execute(request);
}
catch (HttpException ex)
{
if (ex.Response.StatusCode == HttpStatusCode.Unauthorized)
{
throw new MailgunException("Unauthorised - ApiKey is invalid");
}
throw new MailgunException("Unable to connect to Mailgun. Status code: {0}", ex);
}
}
private HttpRequestBuilder BuildRequest(MailgunSettings settings, string resource, HttpMethod method,
string messageSubject, string messageBody)
{
var loginCredentials = new NetworkCredential("api", settings.ApiKey);
var url = settings.UseEuEndpoint ? BaseUrlEu : BaseUrlUs;
var requestBuilder = new HttpRequestBuilder(url).Resource(resource);
requestBuilder.Method = method;
requestBuilder.NetworkCredential = loginCredentials;
requestBuilder.AddFormParameter("from", $"{settings.From}");
foreach (var recipient in settings.Recipients)
{
requestBuilder.AddFormParameter("to", $"{recipient}");
}
requestBuilder.AddFormParameter("subject", $"{messageSubject}");
requestBuilder.AddFormParameter("text", $"{messageBody}");
return requestBuilder;
}
}
}

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using System.Collections.Generic;
using FluentValidation;
using NzbDrone.Core.Annotations;
using NzbDrone.Core.ThingiProvider;
using NzbDrone.Core.Validation;
namespace NzbDrone.Core.Notifications.Mailgun
{
public class MailGunSettingsValidator : AbstractValidator<MailgunSettings>
{
public MailGunSettingsValidator()
{
RuleFor(c => c.ApiKey).NotEmpty();
RuleFor(c => c.From).NotEmpty();
RuleFor(c => c.Recipients).NotEmpty();
}
}
public class MailgunSettings : IProviderConfig
{
private static readonly MailGunSettingsValidator Validator = new MailGunSettingsValidator();
public MailgunSettings()
{
Recipients = new string[] { };
}
[FieldDefinition(0, Label = "API Key", HelpText = "The API key generated from MailGun")]
public string ApiKey { get; set; }
[FieldDefinition(1, Label = "Use EU Endpoint?", HelpText = "You can choose to use the EU MailGun endpoint with this", Type = FieldType.Checkbox)]
public bool UseEuEndpoint { get; set; }
[FieldDefinition(2, Label = "From Address")]
public string From { get; set; }
[FieldDefinition(3, Label = "Sender Domain")]
public string SenderDomain { get; set; }
[FieldDefinition(4, Label = "Recipient Address(es)", Type = FieldType.Tag)]
public IEnumerable<string> Recipients { get; set; }
public NzbDroneValidationResult Validate()
{
return new NzbDroneValidationResult(Validator.Validate(this));
}
}
}