New: Add support for Simplepush notifications

Co-Authored-By: Timm Schäuble <Timm.Schaeuble@gmail.com>

(cherry picked from commit 4c7df31070fbd370b26dbcc07131f21eb88d35fc)

frontend/src/Store/Actions/Creators/createSaveProviderHandler.js

@@ -54,7 +54,7 @@ function createSaveProviderHandler(section, url, options = {}, removeStale = fal
 
     request.done((data) => {
       lastSaveData = null;
-
+      
       if (!Array.isArray(data)) {
         data = [data];
       }

src/NzbDrone.Core/Download/Clients/Flood/Flood.cs

@@ -125,22 +125,22 @@ namespace NzbDrone.Core.Download.Clients.Flood
                     item.RemainingTime = TimeSpan.FromSeconds(properties.Eta);
                 }
 
-                if (properties.Status.Contains("seeding") || properties.Status.Contains("complete"))
-                {
-                    item.Status = DownloadItemStatus.Completed;
-                }
-                else if (properties.Status.Contains("stopped"))
-                {
-                    item.Status = DownloadItemStatus.Paused;
-                }
-                else if (properties.Status.Contains("error"))
+                if (properties.Status.Contains("error"))
                 {
                     item.Status = DownloadItemStatus.Warning;
                 }
+                else if (properties.Status.Contains("seeding") || properties.Status.Contains("complete"))
+                {
+                    item.Status = DownloadItemStatus.Completed;
+                }
                 else if (properties.Status.Contains("downloading"))
                 {
                     item.Status = DownloadItemStatus.Downloading;
                 }
+                else if (properties.Status.Contains("stopped"))
+                {
+                    item.Status = DownloadItemStatus.Paused;
+                }
 
                 if (item.Status == DownloadItemStatus.Completed)
                 {

src/NzbDrone.Core/Notifications/Simplepush/Simplepush.cs

@@ -0,0 +1,58 @@
+using System.Collections.Generic;
+using FluentValidation.Results;
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Core.Notifications.Simplepush
+{
+    public class Simplepush : NotificationBase<SimplepushSettings>
+    {
+        private readonly ISimplepushProxy _proxy;
+
+        public Simplepush(ISimplepushProxy proxy)
+        {
+            _proxy = proxy;
+        }
+
+        public override string Name => "Simplepush";
+        public override string Link => "https://simplepush.io/";
+
+        public override void OnGrab(GrabMessage grabMessage)
+        {
+            _proxy.SendNotification(EPISODE_GRABBED_TITLE, grabMessage.Message, Settings);
+        }
+
+        public override void OnDownload(DownloadMessage message)
+        {
+            _proxy.SendNotification(EPISODE_DOWNLOADED_TITLE, message.Message, Settings);
+        }
+
+        public override void OnEpisodeFileDelete(EpisodeDeleteMessage deleteMessage)
+        {
+            _proxy.SendNotification(EPISODE_DELETED_TITLE, deleteMessage.Message, Settings);
+        }
+
+        public override void OnSeriesDelete(SeriesDeleteMessage deleteMessage)
+        {
+            _proxy.SendNotification(SERIES_DELETED_TITLE, deleteMessage.Message, Settings);
+        }
+
+        public override void OnHealthIssue(HealthCheck.HealthCheck healthCheck)
+        {
+            _proxy.SendNotification(HEALTH_ISSUE_TITLE, healthCheck.Message, Settings);
+        }
+
+        public override void OnApplicationUpdate(ApplicationUpdateMessage updateMessage)
+        {
+            _proxy.SendNotification(APPLICATION_UPDATE_TITLE, updateMessage.Message, Settings);
+        }
+
+        public override ValidationResult Test()
+        {
+            var failures = new List<ValidationFailure>();
+
+            failures.AddIfNotNull(_proxy.Test(Settings));
+
+            return new ValidationResult(failures);
+        }
+    }
+}

src/NzbDrone.Core/Notifications/Simplepush/SimplepushProxy.cs

@@ -0,0 +1,58 @@
+using System;
+using FluentValidation.Results;
+using NLog;
+using NzbDrone.Common.Http;
+
+namespace NzbDrone.Core.Notifications.Simplepush
+{
+    public interface ISimplepushProxy
+    {
+        void SendNotification(string title, string message, SimplepushSettings settings);
+        ValidationFailure Test(SimplepushSettings settings);
+    }
+
+    public class SimplepushProxy : ISimplepushProxy
+    {
+        private const string URL = "https://api.simplepush.io/send";
+        private readonly IHttpClient _httpClient;
+        private readonly Logger _logger;
+
+        public SimplepushProxy(IHttpClient httpClient, Logger logger)
+        {
+            _httpClient = httpClient;
+            _logger = logger;
+        }
+
+        public void SendNotification(string title, string message, SimplepushSettings settings)
+        {
+            var requestBuilder = new HttpRequestBuilder(URL).Post();
+
+            requestBuilder.AddFormParameter("key", settings.Key)
+                          .AddFormParameter("event", settings.Event)
+                          .AddFormParameter("title", title)
+                          .AddFormParameter("msg", message);
+
+            var request = requestBuilder.Build();
+
+            _httpClient.Post(request);
+        }
+
+        public ValidationFailure Test(SimplepushSettings settings)
+        {
+            try
+            {
+                const string title = "Test Notification";
+                const string body = "This is a test message from Sonarr";
+
+                SendNotification(title, body, settings);
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex, "Unable to send test message");
+                return new ValidationFailure("ApiKey", "Unable to send test message");
+            }
+
+            return null;
+        }
+    }
+}

src/NzbDrone.Core/Notifications/Simplepush/SimplepushSettings.cs

@@ -0,0 +1,33 @@
+using FluentValidation;
+using NzbDrone.Core.Annotations;
+using NzbDrone.Core.ThingiProvider;
+using NzbDrone.Core.Validation;
+
+namespace NzbDrone.Core.Notifications.Simplepush
+{
+    public class SimplepushSettingsValidator : AbstractValidator<SimplepushSettings>
+    {
+        public SimplepushSettingsValidator()
+        {
+            RuleFor(c => c.Key).NotEmpty();
+        }
+    }
+
+    public class SimplepushSettings : IProviderConfig
+    {
+        private static readonly SimplepushSettingsValidator Validator = new SimplepushSettingsValidator();
+
+        [FieldDefinition(0, Label = "Key", Privacy = PrivacyLevel.ApiKey, HelpLink = "https://simplepush.io/features")]
+        public string Key { get; set; }
+
+        [FieldDefinition(1, Label = "Event", HelpText = "Customize the behavior of push notifications", HelpLink = "https://simplepush.io/features")]
+        public string Event { get; set; }
+
+        public bool IsValid => !string.IsNullOrWhiteSpace(Key);
+
+        public NzbDroneValidationResult Validate()
+        {
+            return new NzbDroneValidationResult(Validator.Validate(this));
+        }
+    }
+}

src/Readarr.Http/Extensions/RequestExtensions.cs

@@ -162,7 +162,39 @@ namespace Readarr.Http.Extensions
                 remoteIP = remoteIP.MapToIPv4();
             }
 
-            return remoteIP.ToString();
+            var remoteAddress = remoteIP.ToString();
+
+            // Only check if forwarded by a local network reverse proxy
+            if (remoteIP.IsLocalAddress())
+            {
+                var realIPHeader = request.Headers["X-Real-IP"];
+                if (realIPHeader.Any())
+                {
+                    return realIPHeader.First().ToString();
+                }
+
+                var forwardedForHeader = request.Headers["X-Forwarded-For"];
+                if (forwardedForHeader.Any())
+                {
+                    // Get the first address that was forwarded by a local IP to prevent remote clients faking another proxy
+                    foreach (var forwardedForAddress in forwardedForHeader.SelectMany(v => v.Split(',')).Select(v => v.Trim()).Reverse())
+                    {
+                        if (!IPAddress.TryParse(forwardedForAddress, out remoteIP))
+                        {
+                            return remoteAddress;
+                        }
+
+                        if (!remoteIP.IsLocalAddress())
+                        {
+                            return forwardedForAddress;
+                        }
+
+                        remoteAddress = forwardedForAddress;
+                    }
+                }
+            }
+
+            return remoteAddress;
         }
 
         public static void DisableCache(this IHeaderDictionary headers)