New: Nzb Validation and Nzbget/SAB URLBase (#3380)

6 years ago · 6287bfd9d9
parent 5f139c0cb6
commit 6287bfd9d9
20 changed files with 458 additions and 82 deletions
--- a/src/NzbDrone.Common/Http/HttpUri.cs
+++ b/src/NzbDrone.Common/Http/HttpUri.cs
@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Text;
 using System.Text.RegularExpressions;
@ -135,7 +135,7 @@ namespace NzbDrone.Common.Http
            return new HttpUri(Scheme, Host, Port, CombinePath(Path, path), Query, Fragment);
        }

-        private static string CombinePath(string basePath, string relativePath)
+        public static string CombinePath(string basePath, string relativePath)
        {
            if (relativePath.IsNullOrWhiteSpace())
            {
--- a/src/NzbDrone.Core.Test/Download/DownloadClientTests/NzbgetTests/NzbgetFixture.cs
+++ b/src/NzbDrone.Core.Test/Download/DownloadClientTests/NzbgetTests/NzbgetFixture.cs
@ -19,6 +19,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
        private NzbgetQueueItem _queued;
        private NzbgetHistoryItem _failed;
        private NzbgetHistoryItem _completed;
+        private Dictionary<string, string> _configItems;

        [SetUp]
        public void Setup()
@ -80,13 +81,17 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
                    DownloadRate = 7000000
                });

-            var configItems = new Dictionary<string, string>();
-            configItems.Add("Category1.Name", "movie");
-            configItems.Add("Category1.DestDir", @"/remote/mount/movie");
+            Mocker.GetMock<INzbgetProxy>()
+                .Setup(v => v.GetVersion(It.IsAny<NzbgetSettings>()))
+                .Returns("14.0");
+
+            _configItems = new Dictionary<string, string>();
+            _configItems.Add("Category1.Name", "movie");
+            _configItems.Add("Category1.DestDir", @"/remote/mount/movie");

            Mocker.GetMock<INzbgetProxy>()
                .Setup(v => v.GetConfig(It.IsAny<NzbgetSettings>()))
-                .Returns(configItems);
+                .Returns(_configItems);
        }

        protected void GivenFailedDownload()
@ -386,5 +391,18 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests

            error.IsValid.Should().Be(expected);
        }
+
+        [TestCase("0", false)]
+        [TestCase("1", true)]
+        [TestCase(" 7", false)]
+        [TestCase("5000000", false)]
+        public void should_test_keephistory(string keephistory, bool expected)
+        {
+            _configItems["KeepHistory"] = keephistory;
+
+            var error = Subject.Test();
+
+            error.IsValid.Should().Be(expected);
+        }
    }
 }
--- a/src/NzbDrone.Core.Test/Download/NzbValidationServiceFixture.cs
+++ b/src/NzbDrone.Core.Test/Download/NzbValidationServiceFixture.cs
@ -0,0 +1,43 @@
+using System.IO;
+using NUnit.Framework;
+using NzbDrone.Core.Download;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.Download
+{
+    [TestFixture]
+    public class NzbValidationServiceFixture : CoreTest<NzbValidationService>
+    {
+        private byte[] GivenNzbFile(string name)
+        {
+            return File.ReadAllBytes(GetTestPath("Files/Nzbs/" + name + ".nzb"));
+        }
+
+        [Test]
+        public void should_throw_on_invalid_nzb()
+        {
+            var filename = "NotNzb";
+            var fileContent = GivenNzbFile(filename);
+
+            Assert.Throws<InvalidNzbException>(() => Subject.Validate(filename, fileContent));
+        }
+
+        [Test]
+        public void should_throw_when_no_files()
+        {
+            var filename = "NoFiles";
+            var fileContent = GivenNzbFile(filename);
+
+            Assert.Throws<InvalidNzbException>(() => Subject.Validate(filename, fileContent));
+        }
+
+        [Test]
+        public void should_validate_nzb()
+        {
+            var filename = "ValidNzb";
+            var fileContent = GivenNzbFile(filename);
+
+            Subject.Validate(filename, fileContent);
+        }
+    }
+}
--- a/src/NzbDrone.Core.Test/Files/Nzbs/NoFiles.nzb
+++ b/src/NzbDrone.Core.Test/Files/Nzbs/NoFiles.nzb
@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE nzb
+  PUBLIC '-//newzBin//DTD NZB 1.1//EN'
+  'http://www.newzbin.com/DTD/nzb/nzb-1.1.dtd'>
+<nzb xmlns="http://www.newzbin.com/DTD/2003/nzb">
+</nzb>
--- a/src/NzbDrone.Core.Test/Files/Nzbs/NotNzb.nzb
+++ b/src/NzbDrone.Core.Test/Files/Nzbs/NotNzb.nzb
@ -0,0 +1,102 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<fail>
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+    <groups>
+      <group>alt.binaries.teevee</group>
+    </groups>
+    <segments>
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+    </segments>
+  </file>
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+    <groups>
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+    </groups>
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+    </segments>
+  </file>
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+    <groups>
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+    </groups>
+    <segments>
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+  </file>
+</fail>
--- a/src/NzbDrone.Core.Test/Files/Nzbs/ValidNzb.nzb
+++ b/src/NzbDrone.Core.Test/Files/Nzbs/ValidNzb.nzb
@ -0,0 +1,105 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE nzb
+  PUBLIC '-//newzBin//DTD NZB 1.1//EN'
+  'http://www.newzbin.com/DTD/nzb/nzb-1.1.dtd'>
+<nzb xmlns="http://www.newzbin.com/DTD/2003/nzb">
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+    <groups>
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+    </groups>
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+    <groups>
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+    </groups>
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+    </segments>
+  </file>
+  <file date="1504571157" poster="autom@gical.tv (M@GiC)" subject="[432278]-[FULL]-[#a.b.teevee@EFNet]-[ Series.Title.S04E06.720p.HDTV.x264-KILLERS ]-[46/46] - &quot;sample-Series.Title.s04e06.720p.hdtv.x264-killers.vol31+04.par2&quot; yEnc (1/3)">
+    <groups>
+      <group>alt.binaries.teevee</group>
+    </groups>
+    <segments>
+      <segment bytes="793316" number="1">16ND-8I545Pq-s107t0h07g8908870711@K401476783.5.0mFs1</segment>
+      <segment bytes="793409" number="2">iYdZ2D11089F310711.ci-O7O4KG03@260c03388O84Kd.GCEgv</segment>
+      <segment bytes="6784" number="3">r63cDD59Mg1c95738Sn75085O4X7823V1@16V6-b87O21S1937O.lw17o1VS</segment>
+    </segments>
+  </file>
+</nzb>
--- a/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
+++ b/src/NzbDrone.Core.Test/NzbDrone.Core.Test.csproj
@ -195,6 +195,7 @@
    <Compile Include="Download\DownloadClientTests\DownloadStationTests\UsenetDownloadStationFixture.cs" />
    <Compile Include="Download\DownloadServiceFixture.cs" />
    <Compile Include="Download\FailedDownloadServiceFixture.cs" />
+    <Compile Include="Download\NzbValidationServiceFixture.cs" />
    <Compile Include="Download\Pending\PendingReleaseServiceTests\PendingReleaseServiceFixture.cs" />
    <Compile Include="Download\Pending\PendingReleaseServiceTests\RemovePendingFixture.cs" />
    <Compile Include="Download\Pending\PendingReleaseServiceTests\RemoveRejectedFixture.cs" />
@ -553,6 +554,15 @@
    </Content>
  </ItemGroup>
  <ItemGroup>
+    <None Include="Files\Nzbs\NoFiles.nzb">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Include="Files\Nzbs\NotNzb.nzb">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
+    <None Include="Files\Nzbs\ValidNzb.nzb">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+    </None>
    <None Include="Files\TestArchive.tar.gz">
      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
    </None>
@ -584,4 +594,4 @@
  <Target Name="AfterBuild">
  </Target>
  -->
-</Project>
+</Project>
--- a/src/NzbDrone.Core/Download/Clients/Blackhole/UsenetBlackhole.cs
+++ b/src/NzbDrone.Core/Download/Clients/Blackhole/UsenetBlackhole.cs
@ -25,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.Blackhole
                               INamingConfigService namingConfigService,
                               IDiskProvider diskProvider,
                               IRemotePathMappingService remotePathMappingService,
+                               IValidateNzbs nzbValidationService,
                               Logger logger)
-            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, logger)
+            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, nzbValidationService, logger)
        {
            _scanWatchFolder = scanWatchFolder;

--- a/src/NzbDrone.Core/Download/Clients/DownloadStation/UsenetDownloadStation.cs
+++ b/src/NzbDrone.Core/Download/Clients/DownloadStation/UsenetDownloadStation.cs
@ -34,9 +34,10 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
                                     INamingConfigService namingConfigService,
                                     IDiskProvider diskProvider,
                                     IRemotePathMappingService remotePathMappingService,
+                                     IValidateNzbs nzbValidationService,
                                     Logger logger
                                     )
-            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, logger)
+            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, nzbValidationService, logger)
        {
            _dsInfoProxy = dsInfoProxy;
            _dsTaskProxy = dsTaskProxy;
--- a/src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortex.cs
+++ b/src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortex.cs
@ -25,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
                       INamingConfigService namingConfigService,
                       IDiskProvider diskProvider,
                       IRemotePathMappingService remotePathMappingService,
+                       IValidateNzbs nzbValidationService,
                       Logger logger)
-            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, logger)
+            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, nzbValidationService, logger)
        {
            _proxy = proxy;
        }
--- a/src/NzbDrone.Core/Download/Clients/Nzbget/Nzbget.cs
+++ b/src/NzbDrone.Core/Download/Clients/Nzbget/Nzbget.cs
@ -12,6 +12,7 @@ using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.Validation;
 using NzbDrone.Core.RemotePathMappings;
 using NzbDrone.Core.Organizer;
+using System.Globalization;

 namespace NzbDrone.Core.Download.Clients.Nzbget
 {
@ -27,8 +28,9 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
                      INamingConfigService namingConfigService,
                      IDiskProvider diskProvider,
                      IRemotePathMappingService remotePathMappingService,
+                      IValidateNzbs nzbValidationService,
                      Logger logger)
-            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, logger)
+            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, nzbValidationService, logger)
        {
            _proxy = proxy;
        }
@ -53,19 +55,8 @@ namespace NzbDrone.Core.Download.Clients.Nzbget

        private IEnumerable<DownloadClientItem> GetQueue()
        {
-            NzbgetGlobalStatus globalStatus;
-            List<NzbgetQueueItem> queue;
-
-            try
-            {
-                globalStatus = _proxy.GetGlobalStatus(Settings);
-                queue = _proxy.GetQueue(Settings);
-            }
-            catch (DownloadClientException ex)
-            {
-                _logger.Error(ex, ex.Message);
-                return Enumerable.Empty<DownloadClientItem>();
-            }
+            var globalStatus = _proxy.GetGlobalStatus(Settings);
+            var queue = _proxy.GetQueue(Settings);

            var queueItems = new List<DownloadClientItem>();

@ -121,17 +112,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget

        private IEnumerable<DownloadClientItem> GetHistory()
        {
-            List<NzbgetHistoryItem> history;
-
-            try
-            {
-                history = _proxy.GetHistory(Settings).Take(_configService.DownloadClientHistoryLimit).ToList();
-            }
-            catch (DownloadClientException ex)
-            {
-                _logger.Error(ex, ex.Message);
-                return Enumerable.Empty<DownloadClientItem>();
-            }
+            var history = _proxy.GetHistory(Settings).Take(_configService.DownloadClientHistoryLimit).ToList();

            var historyItems = new List<DownloadClientItem>();

@ -307,7 +288,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
            {
                return new NzbDroneValidationFailure("MovieCategory", "Category does not exist")
                {
-                    InfoLink = string.Format("http://{0}:{1}/", Settings.Host, Settings.Port),
+                    InfoLink = _proxy.GetBaseUrl(Settings),
                    DetailedDescription = "The category you entered doesn't exist in NZBGet. Go to NZBGet to create it."
                };
            }
@ -319,13 +300,22 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
        {
            var config = _proxy.GetConfig(Settings);

-            var keepHistory = config.GetValueOrDefault("KeepHistory");
-            if (keepHistory == "0")
+            var keepHistory = config.GetValueOrDefault("KeepHistory", "7");
+            int value;
+            if (!int.TryParse(keepHistory, NumberStyles.None, CultureInfo.InvariantCulture, out value) || value == 0)
+            {
+                return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be greater than 0")
+                {
+                    InfoLink = _proxy.GetBaseUrl(Settings),
+                    DetailedDescription = "NzbGet setting KeepHistory is set to 0. Which prevents Radarr from seeing completed downloads."
+                };
+            }
+            else if (value > 25000)
            {
-                return new NzbDroneValidationFailure(string.Empty, "NZBGet setting KeepHistory should be greater than 0")
+                return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be less than 25000")
                {
-                    InfoLink = string.Format("http://{0}:{1}/", Settings.Host, Settings.Port),
-                    DetailedDescription = "NZBGet setting KeepHistory is set to 0. Which prevents Radarr from seeing completed downloads."
+                    InfoLink = _proxy.GetBaseUrl(Settings),
+                    DetailedDescription = "NzbGet setting KeepHistory is set too high."
                };
            }

--- a/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetProxy.cs
+++ b/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetProxy.cs
@ -11,6 +11,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
 {
    public interface INzbgetProxy
    {
+        string GetBaseUrl(NzbgetSettings settings, string relativePath = null);
        string DownloadNzb(byte[] nzbData, string title, string category, int priority, bool addpaused, NzbgetSettings settings);
        NzbgetGlobalStatus GetGlobalStatus(NzbgetSettings settings);
        List<NzbgetQueueItem> GetQueue(NzbgetSettings settings);
@ -36,9 +37,17 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
            _versionCache = cacheManager.GetCache<string>(GetType(), "versions");
        }

+        public string GetBaseUrl(NzbgetSettings settings, string relativePath = null)
+        {
+            var baseUrl = HttpRequestBuilder.BuildBaseUrl(settings.UseSsl, settings.Host, settings.Port, settings.UrlBase);
+            baseUrl = HttpUri.CombinePath(baseUrl, relativePath);
+
+            return baseUrl;
+        }
+
        private bool HasVersion(int minimumVersion, NzbgetSettings settings)
        {
-            var versionString = _versionCache.Find(settings.Host + ":" + settings.Port) ?? GetVersion(settings);
+            var versionString = _versionCache.Find(GetBaseUrl(settings)) ?? GetVersion(settings);

            var version = int.Parse(versionString.Split(new[] { '.', '-' })[0]);

@ -139,7 +148,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
        {
            var response = ProcessRequest<string>(settings, "version");

-            _versionCache.Set(settings.Host + ":" + settings.Port, response, TimeSpan.FromDays(1));
+            _versionCache.Set(GetBaseUrl(settings), response, TimeSpan.FromDays(1));

            return response;
        }
@ -170,7 +179,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
                queueItem = queue.SingleOrDefault(h => h.Parameters.Any(p => p.Name == "drone" && id == (p.Value as string)));
                historyItem = history.SingleOrDefault(h => h.Parameters.Any(p => p.Name == "drone" && id == (p.Value as string)));
            }
-           
+
            if (queueItem != null)
            {
                if (!EditQueue("GroupFinalDelete", 0, "", queueItem.NzbId, settings))
@ -218,7 +227,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget

        private T ProcessRequest<T>(NzbgetSettings settings, string method, params object[] parameters)
        {
-            var baseUrl = HttpRequestBuilder.BuildBaseUrl(settings.UseSsl, settings.Host, settings.Port, "jsonrpc");
+            var baseUrl = GetBaseUrl(settings, "jsonrpc");

            var requestBuilder = new JsonRpcRequestBuilder(baseUrl, method, parameters);
            requestBuilder.LogResponseContent = true;
--- a/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Nzbget/NzbgetSettings.cs
@ -1,4 +1,5 @@
 using FluentValidation;
+using NzbDrone.Common.Extensions;
 using NzbDrone.Core.Annotations;
 using NzbDrone.Core.ThingiProvider;
 using NzbDrone.Core.Validation;
@ -11,6 +12,8 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
        {
            RuleFor(c => c.Host).ValidHost();
            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
+            RuleFor(c => c.UrlBase).ValidUrlBase().When(c => c.UrlBase.IsNotNullOrWhiteSpace());
+
            RuleFor(c => c.Username).NotEmpty().When(c => !string.IsNullOrWhiteSpace(c.Password));
            RuleFor(c => c.Password).NotEmpty().When(c => !string.IsNullOrWhiteSpace(c.Username));

@ -39,25 +42,28 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
        [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
        public int Port { get; set; }

-        [FieldDefinition(2, Label = "Username", Type = FieldType.Textbox)]
+        [FieldDefinition(2, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the nzbget url, e.g. http://[host]:[port]/[urlBase]/jsonrpc")]
+        public string UrlBase { get; set; }
+
+        [FieldDefinition(3, Label = "Username", Type = FieldType.Textbox)]
        public string Username { get; set; }

-        [FieldDefinition(3, Label = "Password", Type = FieldType.Password)]
+        [FieldDefinition(4, Label = "Password", Type = FieldType.Password)]
        public string Password { get; set; }

-        [FieldDefinition(4, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Radarr avoids conflicts with unrelated downloads, but it's optional")]
+        [FieldDefinition(5, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Radarr avoids conflicts with unrelated downloads, but it's optional")]
        public string MovieCategory { get; set; }        

-        [FieldDefinition(5, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "Priority to use when grabbing movies that released within the last 21 days")]
+        [FieldDefinition(6, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "Priority to use when grabbing movies that released within the last 21 days")]
        public int RecentMoviePriority { get; set; }

-        [FieldDefinition(6, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "Priority to use when grabbing movies that released over 21 days ago")]
+        [FieldDefinition(7, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(NzbgetPriority), HelpText = "Priority to use when grabbing movies that released over 21 days ago")]
        public int OlderMoviePriority { get; set; }

-        [FieldDefinition(7, Label = "Use SSL", Type = FieldType.Checkbox)]
+        [FieldDefinition(8, Label = "Use SSL", Type = FieldType.Checkbox)]
        public bool UseSsl { get; set; }

-        [FieldDefinition(8, Label = "Add Paused", Type = FieldType.Checkbox, HelpText = "This option requires at least NZBGet version 16.0")]
+        [FieldDefinition(9, Label = "Add Paused", Type = FieldType.Checkbox, HelpText = "This option requires at least NZBGet version 16.0")]
        public bool AddPaused { get; set; }

        public NzbDroneValidationResult Validate()
--- a/src/NzbDrone.Core/Download/Clients/Sabnzbd/Sabnzbd.cs
+++ b/src/NzbDrone.Core/Download/Clients/Sabnzbd/Sabnzbd.cs
@ -25,8 +25,9 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                       INamingConfigService namingConfigService,
                       IDiskProvider diskProvider,
                       IRemotePathMappingService remotePathMappingService,
+                       IValidateNzbs nzbValidationService,
                       Logger logger)
-            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, logger)
+            : base(httpClient, configService, namingConfigService, diskProvider, remotePathMappingService, nzbValidationService, logger)
        {
            _proxy = proxy;
        }
@ -115,17 +116,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd

        private IEnumerable<DownloadClientItem> GetHistory()
        {
-            SabnzbdHistory sabHistory;
-
-            try
-            {
-                sabHistory = _proxy.GetHistory(0, _configService.DownloadClientHistoryLimit, Settings.MovieCategory, Settings);
-            }
-            catch (DownloadClientException ex)
-            {
-                _logger.Error(ex, ex.Message);
-                return Enumerable.Empty<DownloadClientItem>();
-            }
+            var sabHistory = _proxy.GetHistory(0, _configService.DownloadClientHistoryLimit, Settings.MovieCategory, Settings);

            var historyItems = new List<DownloadClientItem>();

@ -191,6 +182,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                    }
                }

+
                historyItems.Add(historyItem);
            }

@ -327,6 +319,11 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd

        private Version ParseVersion(string version)
        {
+            if (version.IsNullOrWhiteSpace())
+            {
+                return null;
+            }
+
            var parsed = VersionRegex.Match(version);

            int major;
@ -364,7 +361,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd

                if (version == null)
                {
-                    return new ValidationFailure("Version", "Unknown Version: " + version);
+                    return new ValidationFailure("Version", "Unknown Version: " + rawVersion);
                }

                if (rawVersion.Equals("develop", StringComparison.InvariantCultureIgnoreCase))
@ -424,7 +421,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
            {
                return new NzbDroneValidationFailure("", "Disable 'Check before download' option in SABnzbd")
                {
-                    InfoLink = string.Format("http://{0}:{1}/sabnzbd/config/switches/", Settings.Host, Settings.Port),
+                    InfoLink = _proxy.GetBaseUrl(Settings, "config/switches/"),
                    DetailedDescription = "Using Check before download affects Radarr ability to track new downloads. Also SABnzbd recommends 'Abort jobs that cannot be completed' instead since it's more effective."
                };
            }
@ -443,7 +440,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                {
                    return new NzbDroneValidationFailure("MovieCategory", "Enable Job folders")
                    {
-                        InfoLink = string.Format("http://{0}:{1}/sabnzbd/config/categories/", Settings.Host, Settings.Port),
+                        InfoLink = _proxy.GetBaseUrl(Settings, "config/categories/"),
                        DetailedDescription = "Radarr prefers each download to have a separate folder. With * appended to the Folder/Path SABnzbd will not create these job folders. Go to SABnzbd to fix it."
                    };
                }
@ -454,7 +451,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                {
                    return new NzbDroneValidationFailure("MovieCategory", "Category does not exist")
                    {
-                        InfoLink = string.Format("http://{0}:{1}/sabnzbd/config/categories/", Settings.Host, Settings.Port),
+                        InfoLink = _proxy.GetBaseUrl(Settings, "config/categories/"),
                        DetailedDescription = "The category you entered doesn't exist in SABnzbd. Go to SABnzbd to create it."
                    };
                }
@ -463,7 +460,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
            {
                return new NzbDroneValidationFailure("MovieCategory", "Disable TV Sorting")
                {
-                    InfoLink = string.Format("http://{0}:{1}/sabnzbd/config/sorting/", Settings.Host, Settings.Port),
+                    InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
                    DetailedDescription = "You must disable SABnzbd TV Sorting for the category Radarr uses to prevent import issues. Go to SABnzbd to fix it."
                };
            }
@ -471,7 +468,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
            {
                return new NzbDroneValidationFailure("MovieCategory", "Disable Movie Sorting")
                {
-                    InfoLink = string.Format("http://{0}:{1}/sabnzbd/config/sorting/", Settings.Host, Settings.Port),
+                    InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
                    DetailedDescription = "You must disable SABnzbd Movie Sorting for the category Radarr uses to prevent import issues. Go to SABnzbd to fix it."
                };
            }
@ -479,7 +476,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
            {
                return new NzbDroneValidationFailure("MovieCategory", "Disable Date Sorting")
                {
-                    InfoLink = string.Format("http://{0}:{1}/sabnzbd/config/sorting/", Settings.Host, Settings.Port),
+                    InfoLink = _proxy.GetBaseUrl(Settings, "config/sorting/"),
                    DetailedDescription = "You must disable SABnzbd Date Sorting for the category Radarr uses to prevent import issues. Go to SABnzbd to fix it."
                };
            }
--- a/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdProxy.cs
+++ b/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdProxy.cs
@ -11,6 +11,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
 {
    public interface ISabnzbdProxy
    {
+        string GetBaseUrl(SabnzbdSettings settings, string relativePath = null);
        SabnzbdAddResponse DownloadNzb(byte[] nzbData, string filename, string category, int priority, SabnzbdSettings settings);
        void RemoveFrom(string source, string id,bool deleteData, SabnzbdSettings settings);
        string GetVersion(SabnzbdSettings settings);
@ -32,6 +33,14 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
            _logger = logger;
        }

+        public string GetBaseUrl(SabnzbdSettings settings, string relativePath = null)
+        {
+            var baseUrl = HttpRequestBuilder.BuildBaseUrl(settings.UseSsl, settings.Host, settings.Port, settings.UrlBase);
+            baseUrl = HttpUri.CombinePath(baseUrl, relativePath);
+
+            return baseUrl;
+        }
+
        public SabnzbdAddResponse DownloadNzb(byte[] nzbData, string filename, string category, int priority, SabnzbdSettings settings)
        {
            var request = BuildRequest("addfile", settings).Post();
@ -140,10 +149,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd

        private HttpRequestBuilder BuildRequest(string mode, SabnzbdSettings settings)
        {
-            var baseUrl = string.Format(@"{0}://{1}:{2}/api",
-                                   settings.UseSsl ? "https" : "http",
-                                   settings.Host,
-                                   settings.Port);
+            var baseUrl = GetBaseUrl(settings, "api");

            var requestBuilder = new HttpRequestBuilder(baseUrl)
                .Accept(HttpAccept.Json)
--- a/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs
+++ b/src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdSettings.cs
@ -1,4 +1,5 @@
 using FluentValidation;
+using NzbDrone.Common.Extensions;
 using NzbDrone.Core.Annotations;
 using NzbDrone.Core.ThingiProvider;
 using NzbDrone.Core.Validation;
@ -11,6 +12,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
        {
            RuleFor(c => c.Host).ValidHost();
            RuleFor(c => c.Port).InclusiveBetween(1, 65535);
+            RuleFor(c => c.UrlBase).ValidUrlBase().When(c => c.UrlBase.IsNotNullOrWhiteSpace());

            RuleFor(c => c.ApiKey).NotEmpty()
                                  .WithMessage("API Key is required when username/password are not configured")
@ -49,25 +51,28 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
        [FieldDefinition(1, Label = "Port", Type = FieldType.Textbox)]
        public int Port { get; set; }

-        [FieldDefinition(2, Label = "API Key", Type = FieldType.Textbox)]
+        [FieldDefinition(2, Label = "Url Base", Type = FieldType.Textbox, Advanced = true, HelpText = "Adds a prefix to the Sabnzbd url, e.g. http://[host]:[port]/[urlBase]/api")]
+        public string UrlBase { get; set; }
+
+        [FieldDefinition(3, Label = "API Key", Type = FieldType.Textbox)]
        public string ApiKey { get; set; }

-        [FieldDefinition(3, Label = "Username", Type = FieldType.Textbox)]
+        [FieldDefinition(4, Label = "Username", Type = FieldType.Textbox)]
        public string Username { get; set; }

-        [FieldDefinition(4, Label = "Password", Type = FieldType.Password)]
+        [FieldDefinition(5, Label = "Password", Type = FieldType.Password)]
        public string Password { get; set; }

-        [FieldDefinition(5, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Radarr avoids conflicts with unrelated downloads, but it's optional")]
+        [FieldDefinition(6, Label = "Category", Type = FieldType.Textbox, HelpText = "Adding a category specific to Radarr avoids conflicts with unrelated downloads, but it's optional")]
        public string MovieCategory { get; set; }

-        [FieldDefinition(6, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "Priority to use when grabbing movies that released within the last 21 days")]
+        [FieldDefinition(7, Label = "Recent Priority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "Priority to use when grabbing movies that released within the last 21 days")]
        public int RecentMoviePriority { get; set; }

-        [FieldDefinition(7, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "Priority to use when grabbing movies that released over 21 days ago")]
+        [FieldDefinition(8, Label = "Older Priority", Type = FieldType.Select, SelectOptions = typeof(SabnzbdPriority), HelpText = "Priority to use when grabbing movies that released over 21 days ago")]
        public int OlderMoviePriority { get; set; }

-        [FieldDefinition(8, Label = "Use SSL", Type = FieldType.Checkbox)]
+        [FieldDefinition(9, Label = "Use SSL", Type = FieldType.Checkbox)]
        public bool UseSsl { get; set; }

        public NzbDroneValidationResult Validate()
--- a/src/NzbDrone.Core/Download/InvalidNzbException.cs
+++ b/src/NzbDrone.Core/Download/InvalidNzbException.cs
@ -0,0 +1,24 @@
+using System;
+using NzbDrone.Common.Exceptions;
+
+namespace NzbDrone.Core.Download
+{
+    public class InvalidNzbException : NzbDroneException
+    {
+        public InvalidNzbException(string message, params object[] args) : base(message, args)
+        {
+        }
+
+        public InvalidNzbException(string message) : base(message)
+        {
+        }
+
+        public InvalidNzbException(string message, Exception innerException, params object[] args) : base(message, innerException, args)
+        {
+        }
+
+        public InvalidNzbException(string message, Exception innerException) : base(message, innerException)
+        {
+        }
+    }
+}
--- a/src/NzbDrone.Core/Download/NzbValidationService.cs
+++ b/src/NzbDrone.Core/Download/NzbValidationService.cs
@ -0,0 +1,45 @@
+using System.IO;
+using System.Linq;
+using System.Xml;
+using System.Xml.Linq;
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Core.Download
+{
+    public interface IValidateNzbs
+    {
+        void Validate(string filename, byte[] fileContent);
+    }
+
+    public class NzbValidationService : IValidateNzbs
+    {
+        public void Validate(string filename, byte[] fileContent)
+        {
+            var reader = new StreamReader(new MemoryStream(fileContent));
+
+            using (var xmlTextReader = XmlReader.Create(reader, new XmlReaderSettings { DtdProcessing = DtdProcessing.Ignore, IgnoreComments = true }))
+            {
+                var xDoc = XDocument.Load(xmlTextReader);
+                var nzb = xDoc.Root;
+
+                if (nzb == null)
+                {
+                    throw new InvalidNzbException("Invalid NZB: No Root element [{0}]", filename);
+                }
+
+                if (!nzb.Name.LocalName.Equals("nzb"))
+                {
+                    throw new InvalidNzbException("Invalid NZB: Unexpected root element. Expected 'nzb' found '{0}' [{1}]", nzb.Name.LocalName, filename);
+                }
+
+                var ns = nzb.Name.Namespace;
+                var files = nzb.Elements(ns + "file").ToList();
+
+                if (files.Empty())
+                {
+                    throw new InvalidNzbException("Invalid NZB: No files [{0}]", filename);
+                }
+            }
+        }
+    }
+}
--- a/src/NzbDrone.Core/Download/UsenetClientBase.cs
+++ b/src/NzbDrone.Core/Download/UsenetClientBase.cs
@ -17,16 +17,19 @@ namespace NzbDrone.Core.Download
        where TSettings : IProviderConfig, new()
    {
        protected readonly IHttpClient _httpClient;
+        private readonly IValidateNzbs _nzbValidationService;

        protected UsenetClientBase(IHttpClient httpClient,
                                   IConfigService configService,
                                   INamingConfigService namingConfigService,
                                   IDiskProvider diskProvider,
                                   IRemotePathMappingService remotePathMappingService,
+                                   IValidateNzbs nzbValidationService,
                                   Logger logger)
            : base(configService, namingConfigService, diskProvider, remotePathMappingService, logger)
        {
            _httpClient = httpClient;
+            _nzbValidationService = nzbValidationService;
        }
        
        public override DownloadProtocol Protocol => DownloadProtocol.Usenet;
@ -66,6 +69,8 @@ namespace NzbDrone.Core.Download
                throw new ReleaseDownloadException(remoteMovie.Release, "Downloading nzb failed", ex);
            }

+            _nzbValidationService.Validate(filename, nzbData);
+
            _logger.Info("Adding report [{0}] to the queue.", remoteMovie.Release.Title);
            return AddFromNzbFile(remoteMovie, filename, nzbData);
        }
--- a/src/NzbDrone.Core/NzbDrone.Core.csproj
+++ b/src/NzbDrone.Core/NzbDrone.Core.csproj
@ -149,6 +149,8 @@
    <Compile Include="DecisionEngine\Specifications\CustomFormatAllowedByProfileSpecification.cs" />
    <Compile Include="DecisionEngine\Specifications\MaximumSizeSpecification.cs" />
    <Compile Include="DecisionEngine\Specifications\RequiredIndexerFlagsSpecification.cs" />
+    <Compile Include="Download\InvalidNzbException.cs" />
+    <Compile Include="Download\NzbValidationService.cs" />
    <Compile Include="Extras\Metadata\Consumers\Xbmc\XbmcNfoDetector.cs" />
    <Compile Include="Extras\Others\OtherExtraFileRenamer.cs" />
    <Compile Include="HealthCheck\Checks\PTPOldSettingsCheck.cs" />