Don't die when trying to open file with nullable path

Closes #3012

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,5 +1,5 @@
 name: Bug Report
-description: 'Report a new bug, if you are not 100% certain this is a bug please go to our Reddit or Discord first'
+description: 'Report a new bug, if you are not 100% certain this is a bug please go to our Discord first'
 labels: ['Type: Bug', 'Status: Needs Triage']
 body:
 - type: checkboxes

.github/ISSUE_TEMPLATE/config.yml

@@ -3,6 +3,3 @@ contact_links:
   - name: Support via Discord
     url: https://readarr.com/discord
     about: Chat with users and devs on support and setup related topics.
-  - name: Support via Reddit
-    url: https://reddit.com/r/Readarr
-    about: Discuss and search thru support topics.

.github/workflows/support.yml

@@ -15,8 +15,7 @@ jobs:
           issue-comment: >
             :wave: @{issue-author}, we use the issue tracker exclusively
             for bug reports and feature requests. However, this issue appears
-            to be a support request. Please hop over onto our [Discord](https://readarr.com/discord) 
+            to be a support request. Please hop over onto our [Discord](https://readarr.com/discord).
-            or [Subreddit](https://reddit.com/r/readarr)
           close-issue: true
           lock-issue: false
       - uses: dessant/support-requests@v3

azure-pipelines.yml

@@ -9,13 +9,13 @@ variables:
   testsFolder: './_tests'
   yarnCacheFolder: $(Pipeline.Workspace)/.yarn
   nugetCacheFolder: $(Pipeline.Workspace)/.nuget/packages
-  majorVersion: '0.3.3'
+  majorVersion: '0.3.9'
   minorVersion: $[counter('minorVersion', 1)]
   readarrVersion: '$(majorVersion).$(minorVersion)'
   buildName: '$(Build.SourceBranchName).$(readarrVersion)'
   sentryOrg: 'servarr'
   sentryUrl: 'https://sentry.servarr.com'
-  dotnetVersion: '6.0.408'
+  dotnetVersion: '6.0.413'
   nodeVersion: '16.X'
   innoVersion: '6.2.0'
   windowsImage: 'windows-2022'

frontend/babel.config.js

@@ -4,14 +4,14 @@ module.exports = {
   plugins: [
     // Stage 1
     '@babel/plugin-proposal-export-default-from',
-    ['@babel/plugin-proposal-optional-chaining', { loose }],
+    ['@babel/plugin-transform-optional-chaining', { loose }],
-    ['@babel/plugin-proposal-nullish-coalescing-operator', { loose }],
+    ['@babel/plugin-transform-nullish-coalescing-operator', { loose }],
 
     // Stage 2
-    '@babel/plugin-proposal-export-namespace-from',
+    '@babel/plugin-transform-export-namespace-from',
 
     // Stage 3
-    ['@babel/plugin-proposal-class-properties', { loose }],
+    ['@babel/plugin-transform-class-properties', { loose }],
     '@babel/plugin-syntax-dynamic-import'
   ],
   env: {

frontend/src/Author/AuthorImage.js

@@ -7,13 +7,10 @@ function findImage(images, coverType) {
 }
 
 function getUrl(image, coverType, size) {
-  if (image) {
+  const imageUrl = image?.url;
-    // Remove protocol
-    let url = image.url;
 
-    url = url.replace(`${coverType}.jpg`, `${coverType}-${size}.jpg`);
+  if (imageUrl) {
-
+    return imageUrl.replace(`${coverType}.jpg`, `${coverType}-${size}.jpg`);
-    return url;
   }
 }
 

frontend/src/Author/Details/AuthorDetailsHeader.js

@@ -25,12 +25,7 @@ const defaultFontSize = parseInt(fonts.defaultFontSize);
 const lineHeight = parseFloat(fonts.lineHeight);
 
 function getFanartUrl(images) {
-  const fanartImage = images.find((x) => x.coverType === 'fanart');
+  return images.find((x) => x.coverType === 'fanart')?.url;
-
-  if (fanartImage) {
-    // Remove protocol
-    return fanartImage.url.replace(/^https?:/, '');
-  }
 }
 
 class AuthorDetailsHeader extends Component {

frontend/src/Author/Index/AuthorIndexConnector.js

@@ -16,7 +16,7 @@ import AuthorIndex from './AuthorIndex';
 function createMapStateToProps() {
   return createSelector(
     createAuthorClientSideCollectionItemsSelector('authorIndex'),
-    createCommandExecutingSelector(commandNames.REFRESH_AUTHOR),
+    createCommandExecutingSelector(commandNames.BULK_REFRESH_AUTHOR),
     createCommandExecutingSelector(commandNames.RSS_SYNC),
     createCommandExecutingSelector(commandNames.RENAME_AUTHOR),
     createCommandExecutingSelector(commandNames.RETAG_AUTHOR),
@@ -24,17 +24,17 @@ function createMapStateToProps() {
     (
       author,
       isRefreshingAuthor,
+      isRssSyncExecuting,
       isOrganizingAuthor,
       isRetaggingAuthor,
-      isRssSyncExecuting,
       dimensionsState
     ) => {
       return {
         ...author,
         isRefreshingAuthor,
+        isRssSyncExecuting,
         isOrganizingAuthor,
         isRetaggingAuthor,
-        isRssSyncExecuting,
         isSmallScreen: dimensionsState.isSmallScreen
       };
     }

frontend/src/Book/Details/BookDetailsHeader.js

@@ -21,12 +21,7 @@ const defaultFontSize = parseInt(fonts.defaultFontSize);
 const lineHeight = parseFloat(fonts.lineHeight);
 
 function getFanartUrl(images) {
-  const fanartImage = images.find((x) => x.coverType === 'fanart');
+  return images.find((x) => x.coverType === 'fanart')?.url;
-
-  if (fanartImage) {
-    // Remove protocol
-    return fanartImage.url.replace(/^https?:/, '');
-  }
 }
 
 class BookDetailsHeader extends Component {

frontend/src/Book/Index/BookIndexConnector.js

@@ -16,8 +16,8 @@ import BookIndex from './BookIndex';
 function createMapStateToProps() {
   return createSelector(
     createBookClientSideCollectionItemsSelector('bookIndex'),
-    createCommandExecutingSelector(commandNames.REFRESH_AUTHOR),
+    createCommandExecutingSelector(commandNames.BULK_REFRESH_AUTHOR),
-    createCommandExecutingSelector(commandNames.REFRESH_BOOK),
+    createCommandExecutingSelector(commandNames.BULK_REFRESH_BOOK),
     createCommandExecutingSelector(commandNames.RSS_SYNC),
     createCommandExecutingSelector(commandNames.CUTOFF_UNMET_BOOK_SEARCH),
     createCommandExecutingSelector(commandNames.MISSING_BOOK_SEARCH),

frontend/src/Components/Error/ErrorBoundaryError.css

@@ -25,6 +25,10 @@
   white-space: pre-wrap;
 }
 
+.version {
+  margin-top: 20px;
+}
+
 @media only screen and (max-width: $breakpointMedium) {
   .image {
     height: 250px;

frontend/src/Components/Error/ErrorBoundaryError.css.d.ts

@@ -6,6 +6,7 @@ interface CssExports {
   'image': string;
   'imageContainer': string;
   'message': string;
+  'version': string;
 }
 export const cssExports: CssExports;
 export default cssExports;

frontend/src/Components/Error/ErrorBoundaryError.js

@@ -1,60 +0,0 @@
-import PropTypes from 'prop-types';
-import React from 'react';
-import styles from './ErrorBoundaryError.css';
-
-function ErrorBoundaryError(props) {
-  const {
-    className,
-    messageClassName,
-    detailsClassName,
-    message,
-    error,
-    info
-  } = props;
-
-  return (
-    <div className={className}>
-      <div className={messageClassName}>
-        {message}
-      </div>
-
-      <div className={styles.imageContainer}>
-        <img
-          className={styles.image}
-          src={`${window.Readarr.urlBase}/Content/Images/error.png`}
-        />
-      </div>
-
-      <details className={detailsClassName}>
-        {
-          error &&
-            <div>
-              {error.toString()}
-            </div>
-        }
-
-        <div className={styles.info}>
-          {info.componentStack}
-        </div>
-      </details>
-    </div>
-  );
-}
-
-ErrorBoundaryError.propTypes = {
-  className: PropTypes.string.isRequired,
-  messageClassName: PropTypes.string.isRequired,
-  detailsClassName: PropTypes.string.isRequired,
-  message: PropTypes.string.isRequired,
-  error: PropTypes.object.isRequired,
-  info: PropTypes.object.isRequired
-};
-
-ErrorBoundaryError.defaultProps = {
-  className: styles.container,
-  messageClassName: styles.message,
-  detailsClassName: styles.details,
-  message: 'There was an error loading this content'
-};
-
-export default ErrorBoundaryError;

frontend/src/Components/Error/ErrorBoundaryError.tsx

@@ -0,0 +1,77 @@
+import React, { useEffect, useState } from 'react';
+import StackTrace from 'stacktrace-js';
+import translate from 'Utilities/String/translate';
+import styles from './ErrorBoundaryError.css';
+
+interface ErrorBoundaryErrorProps {
+  className: string;
+  messageClassName: string;
+  detailsClassName: string;
+  message: string;
+  error: Error;
+  info: {
+    componentStack: string;
+  };
+}
+
+function ErrorBoundaryError(props: ErrorBoundaryErrorProps) {
+  const {
+    className = styles.container,
+    messageClassName = styles.message,
+    detailsClassName = styles.details,
+    message = translate('ErrorLoadingContent'),
+    error,
+    info,
+  } = props;
+
+  const [detailedError, setDetailedError] = useState<
+    StackTrace.StackFrame[] | null
+  >(null);
+
+  useEffect(() => {
+    if (error) {
+      StackTrace.fromError(error).then((de) => {
+        setDetailedError(de);
+      });
+    } else {
+      setDetailedError(null);
+    }
+  }, [error, setDetailedError]);
+
+  return (
+    <div className={className}>
+      <div className={messageClassName}>{message}</div>
+
+      <div className={styles.imageContainer}>
+        <img
+          className={styles.image}
+          src={`${window.Readarr.urlBase}/Content/Images/error.png`}
+        />
+      </div>
+
+      <details className={detailsClassName}>
+        {error ? <div>{error.message}</div> : null}
+
+        {detailedError ? (
+          detailedError.map((d, index) => {
+            return (
+              <div key={index}>
+                {`  at ${d.functionName} (${d.fileName}:${d.lineNumber}:${d.columnNumber})`}
+              </div>
+            );
+          })
+        ) : (
+          <div>{info.componentStack}</div>
+        )}
+
+        {
+          <div className={styles.version}>
+            Version: {window.Readarr.version}
+          </div>
+        }
+      </details>
+    </div>
+  );
+}
+
+export default ErrorBoundaryError;

frontend/src/Components/Form/EnhancedSelectInputOption.css

@@ -9,6 +9,10 @@
   &:hover {
     background-color: var(--inputHoverBackgroundColor);
   }
+
+  &.isDisabled {
+    cursor: not-allowed;
+  }
 }
 
 .optionCheck {

frontend/src/Settings/Notifications/Notifications/Notification.js

@@ -60,6 +60,7 @@ class Notification extends Component {
       onReleaseImport,
       onUpgrade,
       onRename,
+      onAuthorAdded,
       onAuthorDelete,
       onBookDelete,
       onBookFileDelete,
@@ -73,6 +74,7 @@ class Notification extends Component {
       supportsOnReleaseImport,
       supportsOnUpgrade,
       supportsOnRename,
+      supportsOnAuthorAdded,
       supportsOnAuthorDelete,
       supportsOnBookDelete,
       supportsOnBookFileDelete,
@@ -136,6 +138,14 @@ class Notification extends Component {
             null
         }
 
+        {
+          supportsOnAuthorAdded && onAuthorAdded ?
+            <Label kind={kinds.SUCCESS}>
+              {translate('OnAuthorAdded')}
+            </Label> :
+            null
+        }
+
         {
           supportsOnAuthorDelete && onAuthorDelete ?
             <Label kind={kinds.SUCCESS}>
@@ -244,6 +254,7 @@ Notification.propTypes = {
   onReleaseImport: PropTypes.bool.isRequired,
   onUpgrade: PropTypes.bool.isRequired,
   onRename: PropTypes.bool.isRequired,
+  onAuthorAdded: PropTypes.bool.isRequired,
   onAuthorDelete: PropTypes.bool.isRequired,
   onBookDelete: PropTypes.bool.isRequired,
   onBookFileDelete: PropTypes.bool.isRequired,
@@ -257,6 +268,7 @@ Notification.propTypes = {
   supportsOnReleaseImport: PropTypes.bool.isRequired,
   supportsOnUpgrade: PropTypes.bool.isRequired,
   supportsOnRename: PropTypes.bool.isRequired,
+  supportsOnAuthorAdded: PropTypes.bool.isRequired,
   supportsOnAuthorDelete: PropTypes.bool.isRequired,
   supportsOnBookDelete: PropTypes.bool.isRequired,
   supportsOnBookFileDelete: PropTypes.bool.isRequired,

frontend/src/Settings/Notifications/Notifications/NotificationEventItems.js

@@ -19,6 +19,7 @@ function NotificationEventItems(props) {
     onReleaseImport,
     onUpgrade,
     onRename,
+    onAuthorAdded,
     onAuthorDelete,
     onBookDelete,
     onBookFileDelete,
@@ -32,6 +33,7 @@ function NotificationEventItems(props) {
     supportsOnReleaseImport,
     supportsOnUpgrade,
     supportsOnRename,
+    supportsOnAuthorAdded,
     supportsOnAuthorDelete,
     supportsOnBookDelete,
     supportsOnBookFileDelete,
@@ -123,6 +125,17 @@ function NotificationEventItems(props) {
             />
           </div>
 
+          <div>
+            <FormInputGroup
+              type={inputTypes.CHECK}
+              name="onAuthorAdded"
+              helpText={translate('OnAuthorAddedHelpText')}
+              isDisabled={!supportsOnAuthorAdded.value}
+              {...onAuthorAdded}
+              onChange={onInputChange}
+            />
+          </div>
+
           <div>
             <FormInputGroup
               type={inputTypes.CHECK}

frontend/src/Store/Actions/Settings/notifications.js

@@ -106,6 +106,7 @@ export default {
         selectedSchema.onReleaseImport = selectedSchema.supportsOnReleaseImport;
         selectedSchema.onUpgrade = selectedSchema.supportsOnUpgrade;
         selectedSchema.onRename = selectedSchema.supportsOnRename;
+        selectedSchema.onAuthorAdded = selectedSchema.supportsOnAuthorAdded;
         selectedSchema.onAuthorDelete = selectedSchema.supportsOnAuthorDelete;
         selectedSchema.onBookDelete = selectedSchema.supportsOnBookDelete;
         selectedSchema.onBookFileDelete = selectedSchema.supportsOnBookFileDelete;

frontend/src/System/Status/Health/Health.js

@@ -71,6 +71,7 @@ function getInternalLink(source) {
 function getTestLink(source, props) {
   switch (source) {
     case 'IndexerStatusCheck':
+    case 'IndexerLongTermStatusCheck':
       return (
         <SpinnerIconButton
           name={icons.TEST}

package.json

@@ -30,7 +30,7 @@
     "@fortawesome/free-regular-svg-icons": "6.4.0",
     "@fortawesome/free-solid-svg-icons": "6.4.0",
     "@fortawesome/react-fontawesome": "0.2.0",
-    "@microsoft/signalr": "6.0.16",
+    "@microsoft/signalr": "6.0.21",
     "@sentry/browser": "7.51.2",
     "@sentry/integrations": "7.51.2",
     "@types/node": "18.16.16",
@@ -83,30 +83,28 @@
     "redux-localstorage": "0.4.1",
     "redux-thunk": "2.3.0",
     "reselect": "4.1.8",
+    "stacktrace-js": "2.0.2",
     "typescript": "4.9.5"
   },
   "devDependencies": {
-    "@babel/core": "7.22.9",
+    "@babel/core": "7.22.11",
-    "@babel/eslint-parser": "7.22.9",
+    "@babel/eslint-parser": "7.22.11",
-    "@babel/plugin-proposal-class-properties": "7.18.6",
     "@babel/plugin-proposal-export-default-from": "7.22.5",
-    "@babel/plugin-proposal-export-namespace-from": "7.18.9",
-    "@babel/plugin-proposal-nullish-coalescing-operator": "7.18.6",
-    "@babel/plugin-proposal-optional-chaining": "7.21.0",
     "@babel/plugin-syntax-dynamic-import": "7.8.3",
-    "@babel/preset-env": "7.22.9",
+    "@babel/preset-env": "7.22.15",
     "@babel/preset-react": "7.22.5",
-    "@babel/preset-typescript": "7.22.5",
+    "@babel/preset-typescript": "7.22.11",
     "@types/lodash": "4.14.197",
+    "@types/react-lazyload": "3.2.1",
     "@types/redux-actions": "2.6.2",
-    "@typescript-eslint/eslint-plugin": "6.0.0",
+    "@typescript-eslint/eslint-plugin": "6.5.0",
-    "@typescript-eslint/parser": "6.0.0",
+    "@typescript-eslint/parser": "6.5.0",
     "autoprefixer": "10.4.14",
     "babel-loader": "9.1.3",
     "babel-plugin-inline-classnames": "2.0.1",
     "babel-plugin-transform-react-remove-prop-types": "0.4.24",
-    "core-js": "3.31.1",
+    "core-js": "3.32.1",
-    "css-loader": "6.7.3",
+    "css-loader": "6.8.1",
     "css-modules-typescript-loader": "4.0.1",
     "eslint": "8.44.0",
     "eslint-config-prettier": "8.8.0",
@@ -120,10 +118,10 @@
     "file-loader": "6.2.0",
     "filemanager-webpack-plugin": "8.0.0",
     "fork-ts-checker-webpack-plugin": "8.0.0",
-    "html-webpack-plugin": "5.5.1",
+    "html-webpack-plugin": "5.5.3",
     "loader-utils": "^3.2.1",
-    "mini-css-extract-plugin": "2.7.5",
+    "mini-css-extract-plugin": "2.7.6",
-    "postcss": "8.4.23",
+    "postcss": "8.4.31",
     "postcss-color-function": "4.1.0",
     "postcss-loader": "7.3.0",
     "postcss-mixins": "9.0.4",
@@ -135,14 +133,14 @@
     "rimraf": "4.4.1",
     "run-sequence": "2.2.1",
     "streamqueue": "1.1.2",
-    "style-loader": "3.3.2",
+    "style-loader": "3.3.3",
-    "stylelint": "15.10.1",
+    "stylelint": "15.10.3",
     "stylelint-order": "6.0.3",
     "terser-webpack-plugin": "5.3.9",
-    "ts-loader": "9.4.3",
+    "ts-loader": "9.4.4",
     "typescript-plugin-css-modules": "5.0.1",
     "url-loader": "4.1.1",
-    "webpack": "5.88.1",
+    "webpack": "5.88.2",
     "webpack-cli": "5.1.4",
     "webpack-livereload-plugin": "3.0.2",
     "worker-loader": "3.0.8"

src/Directory.Packages.props

@@ -4,7 +4,7 @@
     <PackageVersion Include="AutoFixture" Version="4.17.0" />
     <PackageVersion Include="coverlet.collector" Version="3.0.4-preview.27.ge7cb7c3b40" PrivateAssets="all" />
     <PackageVersion Include="Dapper" Version="2.0.123" />
-    <PackageVersion Include="DryIoc.dll" Version="5.4.0" />
+    <PackageVersion Include="DryIoc.dll" Version="5.4.1" />
     <PackageVersion Include="DryIoc.Microsoft.DependencyInjection" Version="6.2.0" />
     <PackageVersion Include="Equ" Version="2.3.0" />
     <PackageVersion Include="FluentAssertions" Version="5.10.3" />
@@ -16,7 +16,7 @@
     <PackageVersion Include="ImpromptuInterface" Version="7.0.1" />
     <PackageVersion Include="LazyCache" Version="2.4.0" />
     <PackageVersion Include="Mailkit" Version="3.6.0" />
-    <PackageVersion Include="Microsoft.AspNetCore.SignalR.Client" Version="6.0.16" />
+    <PackageVersion Include="Microsoft.AspNetCore.SignalR.Client" Version="6.0.21" />
     <PackageVersion Include="Microsoft.Extensions.Caching.Memory" Version="6.0.1" />
     <PackageVersion Include="Microsoft.Extensions.Configuration" Version="6.0.1" />
     <PackageVersion Include="Microsoft.Extensions.DependencyInjection" Version="6.0.1" />
@@ -43,7 +43,7 @@
     <PackageVersion Include="Selenium.WebDriver.ChromeDriver" Version="91.0.4472.10100" />
     <PackageVersion Include="Sentry" Version="3.31.0" />
     <PackageVersion Include="SharpZipLib" Version="1.4.2" />
-    <PackageVersion Include="SixLabors.ImageSharp" Version="3.0.1" />
+    <PackageVersion Include="SixLabors.ImageSharp" Version="3.0.2" />
     <PackageVersion Include="StyleCop.Analyzers" Version="1.1.118" />
     <PackageVersion Include="Swashbuckle.AspNetCore.SwaggerGen" Version="6.5.0" />
     <PackageVersion Include="System.Buffers" Version="4.5.1" />
@@ -57,10 +57,10 @@
     <PackageVersion Include="System.Resources.Extensions" Version="6.0.0" />
     <PackageVersion Include="System.Runtime.Loader" Version="4.3.0" />
     <PackageVersion Include="System.Security.Principal.Windows" Version="5.0.0" />
-    <PackageVersion Include="System.ServiceProcess.ServiceController" Version="6.0.0" />
+    <PackageVersion Include="System.ServiceProcess.ServiceController" Version="6.0.1" />
     <PackageVersion Include="System.Text.Encoding.CodePages" Version="6.0.0" />
-    <PackageVersion Include="System.Text.Json" Version="6.0.7" />
+    <PackageVersion Include="System.Text.Json" Version="6.0.8" />
     <PackageVersion Include="System.ValueTuple" Version="4.5.0" />
     <PackageVersion Include="TagLibSharp-Lidarr" Version="2.2.0.19" />
   </ItemGroup>
-</Project>
+</Project>

src/NzbDrone.Common.Test/Http/HttpClientFixture.cs

@@ -6,6 +6,7 @@ using System.Linq;
 using System.Net;
 using System.Net.Http;
 using System.Threading;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NLog;
@@ -114,21 +115,21 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_execute_simple_get()
+        public async Task should_execute_simple_get()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-            var response = Subject.Execute(request);
+            var response = await Subject.ExecuteAsync(request);
 
             response.Content.Should().NotBeNullOrWhiteSpace();
         }
 
         [Test]
-        public void should_execute_https_get()
+        public async Task should_execute_https_get()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-            var response = Subject.Execute(request);
+            var response = await Subject.ExecuteAsync(request);
 
             response.Content.Should().NotBeNullOrWhiteSpace();
         }
@@ -140,47 +141,47 @@ namespace NzbDrone.Common.Test.Http
             Mocker.GetMock<IConfigService>().SetupGet(x => x.CertificateValidation).Returns(validationType);
             var request = new HttpRequest($"https://expired.badssl.com");
 
-            Assert.Throws<HttpRequestException>(() => Subject.Execute(request));
+            Assert.ThrowsAsync<HttpRequestException>(async () => await Subject.ExecuteAsync(request));
             ExceptionVerification.ExpectedErrors(1);
         }
 
         [Test]
-        public void bad_ssl_should_pass_if_remote_validation_disabled()
+        public async Task bad_ssl_should_pass_if_remote_validation_disabled()
         {
             Mocker.GetMock<IConfigService>().SetupGet(x => x.CertificateValidation).Returns(CertificateValidationType.Disabled);
 
             var request = new HttpRequest($"https://expired.badssl.com");
 
-            Subject.Execute(request);
+            await Subject.ExecuteAsync(request);
             ExceptionVerification.ExpectedErrors(0);
         }
 
         [Test]
-        public void should_execute_typed_get()
+        public async Task should_execute_typed_get()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/get?test=1");
 
-            var response = Subject.Get<HttpBinResource>(request);
+            var response = await Subject.GetAsync<HttpBinResource>(request);
 
             response.Resource.Url.EndsWith("/get?test=1");
             response.Resource.Args.Should().Contain("test", "1");
         }
 
         [Test]
-        public void should_execute_simple_post()
+        public async Task should_execute_simple_post()
         {
             var message = "{ my: 1 }";
 
             var request = new HttpRequest($"https://{_httpBinHost}/post");
             request.SetContent(message);
 
-            var response = Subject.Post<HttpBinResource>(request);
+            var response = await Subject.PostAsync<HttpBinResource>(request);
 
             response.Resource.Data.Should().Be(message);
         }
 
         [Test]
-        public void should_execute_post_with_content_type()
+        public async Task should_execute_post_with_content_type()
         {
             var message = "{ my: 1 }";
 
@@ -188,17 +189,16 @@ namespace NzbDrone.Common.Test.Http
             request.SetContent(message);
             request.Headers.ContentType = "application/json";
 
-            var response = Subject.Post<HttpBinResource>(request);
+            var response = await Subject.PostAsync<HttpBinResource>(request);
 
             response.Resource.Data.Should().Be(message);
         }
 
         [Test]
-        public void should_execute_get_using_gzip()
+        public async Task should_execute_get_using_gzip()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/gzip");
-
+            var response = await Subject.GetAsync<HttpBinResource>(request);
-            var response = Subject.Get<HttpBinResource>(request);
 
             response.Resource.Headers["Accept-Encoding"].ToString().Should().Contain("gzip");
 
@@ -208,11 +208,10 @@ namespace NzbDrone.Common.Test.Http
 
         [Test]
         [Platform(Exclude = "MacOsX", Reason = "Azure agent update prevents brotli on OSX")]
-        public void should_execute_get_using_brotli()
+        public async Task should_execute_get_using_brotli()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/brotli");
-
+            var response = await Subject.GetAsync<HttpBinResource>(request);
-            var response = Subject.Get<HttpBinResource>(request);
 
             response.Resource.Headers["Accept-Encoding"].ToString().Should().Contain("br");
 
@@ -230,7 +229,7 @@ namespace NzbDrone.Common.Test.Http
         {
             var request = new HttpRequest($"https://{_httpBinHost}/status/{statusCode}");
 
-            var exception = Assert.Throws<HttpException>(() => Subject.Get<HttpBinResource>(request));
+            var exception = Assert.ThrowsAsync<HttpException>(async () => await Subject.GetAsync<HttpBinResource>(request));
 
             ((int)exception.Response.StatusCode).Should().Be(statusCode);
 
@@ -243,7 +242,7 @@ namespace NzbDrone.Common.Test.Http
             var request = new HttpRequest($"https://{_httpBinHost}/status/{HttpStatusCode.NotFound}");
             request.SuppressHttpErrorStatusCodes = new[] { HttpStatusCode.NotFound };
 
-            var exception = Assert.Throws<HttpException>(() => Subject.Get<HttpBinResource>(request));
+            Assert.ThrowsAsync<HttpException>(async () => await Subject.GetAsync<HttpBinResource>(request));
 
             ExceptionVerification.IgnoreWarns();
         }
@@ -253,7 +252,7 @@ namespace NzbDrone.Common.Test.Http
         {
             var request = new HttpRequest($"https://{_httpBinHost}/status/{HttpStatusCode.NotFound}");
 
-            var exception = Assert.Throws<HttpException>(() => Subject.Get<HttpBinResource>(request));
+            var exception = Assert.ThrowsAsync<HttpException>(async () => await Subject.GetAsync<HttpBinResource>(request));
 
             ExceptionVerification.ExpectedWarns(1);
         }
@@ -264,28 +263,28 @@ namespace NzbDrone.Common.Test.Http
             var request = new HttpRequest($"https://{_httpBinHost}/status/{HttpStatusCode.NotFound}");
             request.LogHttpError = false;
 
-            var exception = Assert.Throws<HttpException>(() => Subject.Get<HttpBinResource>(request));
+            Assert.ThrowsAsync<HttpException>(async () => await Subject.GetAsync<HttpBinResource>(request));
 
             ExceptionVerification.ExpectedWarns(0);
         }
 
         [Test]
-        public void should_not_follow_redirects_when_not_in_production()
+        public async Task should_not_follow_redirects_when_not_in_production()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/redirect/1");
 
-            Subject.Get(request);
+            await Subject.GetAsync(request);
 
             ExceptionVerification.ExpectedErrors(1);
         }
 
         [Test]
-        public void should_follow_redirects()
+        public async Task should_follow_redirects()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/redirect/1");
             request.AllowAutoRedirect = true;
 
-            var response = Subject.Get(request);
+            var response = await Subject.GetAsync(request);
 
             response.StatusCode.Should().Be(HttpStatusCode.OK);
 
@@ -293,12 +292,12 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_not_follow_redirects()
+        public async Task should_not_follow_redirects()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/redirect/1");
             request.AllowAutoRedirect = false;
 
-            var response = Subject.Get(request);
+            var response = await Subject.GetAsync(request);
 
             response.StatusCode.Should().Be(HttpStatusCode.Found);
 
@@ -306,14 +305,14 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_follow_redirects_to_https()
+        public async Task should_follow_redirects_to_https()
         {
             var request = new HttpRequestBuilder($"https://{_httpBinHost}/redirect-to")
                 .AddQueryParam("url", $"https://readarr.com/")
                 .Build();
             request.AllowAutoRedirect = true;
 
-            var response = Subject.Get(request);
+            var response = await Subject.GetAsync(request);
 
             response.StatusCode.Should().Be(HttpStatusCode.OK);
             response.Content.Should().Contain("Readarr");
@@ -327,17 +326,17 @@ namespace NzbDrone.Common.Test.Http
             var request = new HttpRequest($"https://{_httpBinHost}/redirect/6");
             request.AllowAutoRedirect = true;
 
-            Assert.Throws<WebException>(() => Subject.Get(request));
+            Assert.ThrowsAsync<WebException>(async () => await Subject.GetAsync(request));
 
             ExceptionVerification.ExpectedErrors(0);
         }
 
         [Test]
-        public void should_send_user_agent()
+        public async Task should_send_user_agent()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-            var response = Subject.Get<HttpBinResource>(request);
+            var response = await Subject.GetAsync<HttpBinResource>(request);
 
             response.Resource.Headers.Should().ContainKey("User-Agent");
 
@@ -347,24 +346,24 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [TestCase("Accept", "text/xml, text/rss+xml, application/rss+xml")]
-        public void should_send_headers(string header, string value)
+        public async Task should_send_headers(string header, string value)
         {
             var request = new HttpRequest($"https://{_httpBinHost}/get");
             request.Headers.Add(header, value);
 
-            var response = Subject.Get<HttpBinResource>(request);
+            var response = await Subject.GetAsync<HttpBinResource>(request);
 
             response.Resource.Headers[header].ToString().Should().Be(value);
         }
 
         [Test]
-        public void should_download_file()
+        public async Task should_download_file()
         {
             var file = GetTempFilePath();
 
             var url = "https://readarr.com/img/slider/artistdetails.png";
 
-            Subject.DownloadFile(url, file);
+            await Subject.DownloadFileAsync(url, file);
 
             var fileInfo = new FileInfo(file);
             fileInfo.Exists.Should().BeTrue();
@@ -372,7 +371,7 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_download_file_with_redirect()
+        public async Task should_download_file_with_redirect()
         {
             var file = GetTempFilePath();
 
@@ -380,7 +379,7 @@ namespace NzbDrone.Common.Test.Http
                 .AddQueryParam("url", $"https://readarr.com/img/slider/artistdetails.png")
                 .Build();
 
-            Subject.DownloadFile(request.Url.FullUri, file);
+            await Subject.DownloadFileAsync(request.Url.FullUri, file);
 
             ExceptionVerification.ExpectedErrors(0);
 
@@ -394,7 +393,7 @@ namespace NzbDrone.Common.Test.Http
         {
             var file = GetTempFilePath();
 
-            Assert.Throws<HttpException>(() => Subject.DownloadFile("https://download.sonarr.tv/wrongpath", file));
+            Assert.ThrowsAsync<HttpException>(async () => await Subject.DownloadFileAsync("https://download.sonarr.tv/wrongpath", file));
 
             File.Exists(file).Should().BeFalse();
 
@@ -402,7 +401,7 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_not_write_redirect_content_to_stream()
+        public async Task should_not_write_redirect_content_to_stream()
         {
             var file = GetTempFilePath();
 
@@ -412,7 +411,7 @@ namespace NzbDrone.Common.Test.Http
                 request.AllowAutoRedirect = false;
                 request.ResponseStream = fileStream;
 
-                var response = Subject.Get(request);
+                var response = await Subject.GetAsync(request);
 
                 response.StatusCode.Should().Be(HttpStatusCode.Moved);
             }
@@ -427,12 +426,12 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_send_cookie()
+        public async Task should_send_cookie()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/get");
             request.Cookies["my"] = "cookie";
 
-            var response = Subject.Get<HttpBinResource>(request);
+            var response = await Subject.GetAsync<HttpBinResource>(request);
 
             response.Resource.Headers.Should().ContainKey("Cookie");
 
@@ -461,13 +460,13 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_preserve_cookie_during_session()
+        public async Task should_preserve_cookie_during_session()
         {
             GivenOldCookie();
 
             var request = new HttpRequest($"https://{_httpBinHost2}/get");
 
-            var response = Subject.Get<HttpBinResource>(request);
+            var response = await Subject.GetAsync<HttpBinResource>(request);
 
             response.Resource.Headers.Should().ContainKey("Cookie");
 
@@ -477,30 +476,30 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_not_send_cookie_to_other_host()
+        public async Task should_not_send_cookie_to_other_host()
         {
             GivenOldCookie();
 
             var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-            var response = Subject.Get<HttpBinResource>(request);
+            var response = await Subject.GetAsync<HttpBinResource>(request);
 
             response.Resource.Headers.Should().NotContainKey("Cookie");
         }
 
         [Test]
-        public void should_not_store_request_cookie()
+        public async Task should_not_store_request_cookie()
         {
             var requestGet = new HttpRequest($"https://{_httpBinHost}/get");
             requestGet.Cookies.Add("my", "cookie");
             requestGet.AllowAutoRedirect = false;
             requestGet.StoreRequestCookie = false;
             requestGet.StoreResponseCookie = false;
-            var responseGet = Subject.Get<HttpBinResource>(requestGet);
+            var responseGet = await Subject.GetAsync<HttpBinResource>(requestGet);
 
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.AllowAutoRedirect = false;
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().BeEmpty();
 
@@ -508,18 +507,18 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_store_request_cookie()
+        public async Task should_store_request_cookie()
         {
             var requestGet = new HttpRequest($"https://{_httpBinHost}/get");
             requestGet.Cookies.Add("my", "cookie");
             requestGet.AllowAutoRedirect = false;
             requestGet.StoreRequestCookie.Should().BeTrue();
             requestGet.StoreResponseCookie = false;
-            var responseGet = Subject.Get<HttpBinResource>(requestGet);
+            var responseGet = await Subject.GetAsync<HttpBinResource>(requestGet);
 
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.AllowAutoRedirect = false;
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -527,7 +526,7 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_delete_request_cookie()
+        public async Task should_delete_request_cookie()
         {
             var requestDelete = new HttpRequest($"https://{_httpBinHost}/cookies/delete?my");
             requestDelete.Cookies.Add("my", "cookie");
@@ -536,13 +535,13 @@ namespace NzbDrone.Common.Test.Http
             requestDelete.StoreResponseCookie = false;
 
             // Delete and redirect since that's the only way to check the internal temporary cookie container
-            var responseCookies = Subject.Get<HttpCookieResource>(requestDelete);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestDelete);
 
             responseCookies.Resource.Cookies.Should().BeEmpty();
         }
 
         [Test]
-        public void should_clear_request_cookie()
+        public async Task should_clear_request_cookie()
         {
             var requestSet = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestSet.Cookies.Add("my", "cookie");
@@ -550,7 +549,7 @@ namespace NzbDrone.Common.Test.Http
             requestSet.StoreRequestCookie = true;
             requestSet.StoreResponseCookie = false;
 
-            var responseSet = Subject.Get<HttpCookieResource>(requestSet);
+            var responseSet = await Subject.GetAsync<HttpCookieResource>(requestSet);
 
             var requestClear = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestClear.Cookies.Add("my", null);
@@ -558,24 +557,24 @@ namespace NzbDrone.Common.Test.Http
             requestClear.StoreRequestCookie = true;
             requestClear.StoreResponseCookie = false;
 
-            var responseClear = Subject.Get<HttpCookieResource>(requestClear);
+            var responseClear = await Subject.GetAsync<HttpCookieResource>(requestClear);
 
             responseClear.Resource.Cookies.Should().BeEmpty();
         }
 
         [Test]
-        public void should_not_store_response_cookie()
+        public async Task should_not_store_response_cookie()
         {
             var requestSet = new HttpRequest($"https://{_httpBinHost}/cookies/set?my=cookie");
             requestSet.AllowAutoRedirect = false;
             requestSet.StoreRequestCookie = false;
             requestSet.StoreResponseCookie.Should().BeFalse();
 
-            var responseSet = Subject.Get(requestSet);
+            var responseSet = await Subject.GetAsync(requestSet);
 
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
 
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().BeEmpty();
 
@@ -583,18 +582,18 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_store_response_cookie()
+        public async Task should_store_response_cookie()
         {
             var requestSet = new HttpRequest($"https://{_httpBinHost}/cookies/set?my=cookie");
             requestSet.AllowAutoRedirect = false;
             requestSet.StoreRequestCookie = false;
             requestSet.StoreResponseCookie = true;
 
-            var responseSet = Subject.Get(requestSet);
+            var responseSet = await Subject.GetAsync(requestSet);
 
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
 
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -602,13 +601,13 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_temp_store_response_cookie()
+        public async Task should_temp_store_response_cookie()
         {
             var requestSet = new HttpRequest($"https://{_httpBinHost}/cookies/set?my=cookie");
             requestSet.AllowAutoRedirect = true;
             requestSet.StoreRequestCookie = false;
             requestSet.StoreResponseCookie.Should().BeFalse();
-            var responseSet = Subject.Get<HttpCookieResource>(requestSet);
+            var responseSet = await Subject.GetAsync<HttpCookieResource>(requestSet);
 
             // Set and redirect since that's the only way to check the internal temporary cookie container
             responseSet.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
@@ -617,7 +616,7 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_overwrite_response_cookie()
+        public async Task should_overwrite_response_cookie()
         {
             var requestSet = new HttpRequest($"https://{_httpBinHost}/cookies/set?my=cookie");
             requestSet.Cookies.Add("my", "oldcookie");
@@ -625,11 +624,11 @@ namespace NzbDrone.Common.Test.Http
             requestSet.StoreRequestCookie = false;
             requestSet.StoreResponseCookie = true;
 
-            var responseSet = Subject.Get(requestSet);
+            var responseSet = await Subject.GetAsync(requestSet);
 
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
 
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -637,7 +636,7 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_overwrite_temp_response_cookie()
+        public async Task should_overwrite_temp_response_cookie()
         {
             var requestSet = new HttpRequest($"https://{_httpBinHost}/cookies/set?my=cookie");
             requestSet.Cookies.Add("my", "oldcookie");
@@ -645,13 +644,13 @@ namespace NzbDrone.Common.Test.Http
             requestSet.StoreRequestCookie = true;
             requestSet.StoreResponseCookie = false;
 
-            var responseSet = Subject.Get<HttpCookieResource>(requestSet);
+            var responseSet = await Subject.GetAsync<HttpCookieResource>(requestSet);
 
             responseSet.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
 
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "oldcookie");
 
@@ -659,14 +658,14 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_not_delete_response_cookie()
+        public async Task should_not_delete_response_cookie()
         {
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.Cookies.Add("my", "cookie");
             requestCookies.AllowAutoRedirect = false;
             requestCookies.StoreRequestCookie = true;
             requestCookies.StoreResponseCookie = false;
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -675,13 +674,13 @@ namespace NzbDrone.Common.Test.Http
             requestDelete.StoreRequestCookie = false;
             requestDelete.StoreResponseCookie = false;
 
-            var responseDelete = Subject.Get(requestDelete);
+            var responseDelete = await Subject.GetAsync(requestDelete);
 
             requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.StoreRequestCookie = false;
             requestCookies.StoreResponseCookie = false;
 
-            responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -689,14 +688,14 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_delete_response_cookie()
+        public async Task should_delete_response_cookie()
         {
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.Cookies.Add("my", "cookie");
             requestCookies.AllowAutoRedirect = false;
             requestCookies.StoreRequestCookie = true;
             requestCookies.StoreResponseCookie = false;
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -705,13 +704,13 @@ namespace NzbDrone.Common.Test.Http
             requestDelete.StoreRequestCookie = false;
             requestDelete.StoreResponseCookie = true;
 
-            var responseDelete = Subject.Get(requestDelete);
+            var responseDelete = await Subject.GetAsync(requestDelete);
 
             requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.StoreRequestCookie = false;
             requestCookies.StoreResponseCookie = false;
 
-            responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().BeEmpty();
 
@@ -719,14 +718,14 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_delete_temp_response_cookie()
+        public async Task should_delete_temp_response_cookie()
         {
             var requestCookies = new HttpRequest($"https://{_httpBinHost}/cookies");
             requestCookies.Cookies.Add("my", "cookie");
             requestCookies.AllowAutoRedirect = false;
             requestCookies.StoreRequestCookie = true;
             requestCookies.StoreResponseCookie = false;
-            var responseCookies = Subject.Get<HttpCookieResource>(requestCookies);
+            var responseCookies = await Subject.GetAsync<HttpCookieResource>(requestCookies);
 
             responseCookies.Resource.Cookies.Should().HaveCount(1).And.Contain("my", "cookie");
 
@@ -734,7 +733,7 @@ namespace NzbDrone.Common.Test.Http
             requestDelete.AllowAutoRedirect = true;
             requestDelete.StoreRequestCookie = false;
             requestDelete.StoreResponseCookie = false;
-            var responseDelete = Subject.Get<HttpCookieResource>(requestDelete);
+            var responseDelete = await Subject.GetAsync<HttpCookieResource>(requestDelete);
 
             responseDelete.Resource.Cookies.Should().BeEmpty();
 
@@ -752,13 +751,13 @@ namespace NzbDrone.Common.Test.Http
         {
             var request = new HttpRequest($"https://{_httpBinHost}/status/429");
 
-            Assert.Throws<TooManyRequestsException>(() => Subject.Get(request));
+            Assert.ThrowsAsync<TooManyRequestsException>(async () => await Subject.GetAsync(request));
 
             ExceptionVerification.IgnoreWarns();
         }
 
         [Test]
-        public void should_call_interceptor()
+        public async Task should_call_interceptor()
         {
             Mocker.SetConstant<IEnumerable<IHttpRequestInterceptor>>(new[] { Mocker.GetMock<IHttpRequestInterceptor>().Object });
 
@@ -772,7 +771,7 @@ namespace NzbDrone.Common.Test.Http
 
             var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-            Subject.Get(request);
+            await Subject.GetAsync(request);
 
             Mocker.GetMock<IHttpRequestInterceptor>()
                 .Verify(v => v.PreRequest(It.IsAny<HttpRequest>()), Times.Once());
@@ -783,7 +782,7 @@ namespace NzbDrone.Common.Test.Http
 
         [TestCase("en-US")]
         [TestCase("es-ES")]
-        public void should_parse_malformed_cloudflare_cookie(string culture)
+        public async Task should_parse_malformed_cloudflare_cookie(string culture)
         {
             var origCulture = Thread.CurrentThread.CurrentCulture;
             Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo(culture);
@@ -799,11 +798,11 @@ namespace NzbDrone.Common.Test.Http
                 requestSet.AllowAutoRedirect = false;
                 requestSet.StoreResponseCookie = true;
 
-                var responseSet = Subject.Get(requestSet);
+                var responseSet = await Subject.GetAsync(requestSet);
 
                 var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-                var response = Subject.Get<HttpBinResource>(request);
+                var response = await Subject.GetAsync<HttpBinResource>(request);
 
                 response.Resource.Headers.Should().ContainKey("Cookie");
 
@@ -821,7 +820,7 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [TestCase("lang_code=en; expires=Wed, 23-Dec-2026 18:09:14 GMT; Max-Age=31536000; path=/; domain=.abc.com")]
-        public void should_reject_malformed_domain_cookie(string malformedCookie)
+        public async Task should_reject_malformed_domain_cookie(string malformedCookie)
         {
             try
             {
@@ -831,11 +830,11 @@ namespace NzbDrone.Common.Test.Http
                 requestSet.AllowAutoRedirect = false;
                 requestSet.StoreResponseCookie = true;
 
-                var responseSet = Subject.Get(requestSet);
+                var responseSet = await Subject.GetAsync(requestSet);
 
                 var request = new HttpRequest($"https://{_httpBinHost}/get");
 
-                var response = Subject.Get<HttpBinResource>(request);
+                var response = await Subject.GetAsync<HttpBinResource>(request);
 
                 response.Resource.Headers.Should().NotContainKey("Cookie");
 
@@ -847,12 +846,12 @@ namespace NzbDrone.Common.Test.Http
         }
 
         [Test]
-        public void should_correctly_use_basic_auth_with_basic_network_credential()
+        public async Task should_correctly_use_basic_auth()
         {
             var request = new HttpRequest($"https://{_httpBinHost}/basic-auth/username/password");
             request.Credentials = new BasicNetworkCredential("username", "password");
 
-            var response = Subject.Execute(request);
+            var response = await Subject.ExecuteAsync(request);
 
             response.StatusCode.Should().Be(HttpStatusCode.OK);
         }

src/NzbDrone.Common.Test/InstrumentationTests/CleanseLogMessageFixture.cs

@@ -70,15 +70,15 @@ namespace NzbDrone.Common.Test.InstrumentationTests
         [TestCase(@"[Info] MigrationController: *** Migrating Database=readarr-main;Host=postgres14;Username=mySecret;Password=mySecret;Port=5432;token=mySecret;Enlist=False&username=mySecret;mypassword=mySecret;mypass=shouldkeep1;test_token=mySecret;password=123%@%_@!#^#@;use_password=mySecret;get_token=shouldkeep2;usetoken=shouldkeep3;passwrd=mySecret;")]
 
         // Announce URLs (passkeys) Magnet & Tracker
-        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2f9pr04sg601233210imaveql2tyu8xyui%2fannounce""}")]
+        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2f9pr04sg601233210IMAveQL2tyu8xyui%2fannounce""}")]
-        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2ftracker.php%2f9pr04sg601233210imaveql2tyu8xyui%2fannounce""}")]
+        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2ftracker.php%2f9pr04sg601233210IMAveQL2tyu8xyui%2fannounce""}")]
-        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2fannounce%2f9pr04sg601233210imaveql2tyu8xyui""}")]
+        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2fannounce%2f9pr04sg601233210IMAveQL2tyu8xyui""}")]
-        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2fannounce.php%3fpasskey%3d9pr04sg601233210imaveql2tyu8xyui""}")]
+        [TestCase(@"magnet_uri"":""magnet:?xt=urn:btih:9pr04sgkillroyimaveql2tyu8xyui&dn=&tr=https%3a%2f%2fxxx.yyy%2fannounce.php%3fpasskey%3d9pr04sg601233210IMAveQL2tyu8xyui""}")]
-        [TestCase(@"tracker"":""https://xxx.yyy/9pr04sg601233210imaveql2tyu8xyui/announce""}")]
+        [TestCase(@"tracker"":""https://xxx.yyy/9pr04sg601233210IMAveQL2tyu8xyui/announce""}")]
-        [TestCase(@"tracker"":""https://xxx.yyy/tracker.php/9pr04sg601233210imaveql2tyu8xyui/announce""}")]
+        [TestCase(@"tracker"":""https://xxx.yyy/tracker.php/9pr04sg601233210IMAveQL2tyu8xyui/announce""}")]
-        [TestCase(@"tracker"":""https://xxx.yyy/announce/9pr04sg601233210imaveql2tyu8xyui""}")]
+        [TestCase(@"tracker"":""https://xxx.yyy/announce/9pr04sg601233210IMAveQL2tyu8xyui""}")]
-        [TestCase(@"tracker"":""https://xxx.yyy/announce.php?passkey=9pr04sg601233210imaveql2tyu8xyui""}")]
+        [TestCase(@"tracker"":""https://xxx.yyy/announce.php?passkey=9pr04sg601233210IMAveQL2tyu8xyui""}")]
-        [TestCase(@"tracker"":""http://xxx.yyy/announce.php?passkey=9pr04sg601233210imaveql2tyu8xyui"",""info"":""http://xxx.yyy/info?a=b""")]
+        [TestCase(@"tracker"":""http://xxx.yyy/announce.php?passkey=9pr04sg601233210IMAveQL2tyu8xyui"",""info"":""http://xxx.yyy/info?a=b""")]
 
         // Notifiarr
         [TestCase(@"https://xxx.yyy/api/v1/notification/readarr/9pr04sg6-0123-3210-imav-eql2tyu8xyui")]

src/NzbDrone.Common/Extensions/PathExtensions.cs

@@ -162,7 +162,7 @@ namespace NzbDrone.Common.Extensions
         {
             if (text.IsNullOrWhiteSpace())
             {
-                throw new ArgumentNullException("text");
+                throw new ArgumentNullException(nameof(text));
             }
 
             return text.IndexOfAny(Path.GetInvalidPathChars()) >= 0;

src/NzbDrone.Common/Http/Dispatchers/IHttpDispatcher.cs

@@ -1,9 +1,10 @@
 using System.Net;
+using System.Threading.Tasks;
 
 namespace NzbDrone.Common.Http.Dispatchers
 {
     public interface IHttpDispatcher
     {
-        HttpResponse GetResponse(HttpRequest request, CookieContainer cookies);
+        Task<HttpResponse> GetResponseAsync(HttpRequest request, CookieContainer cookies);
     }
 }

src/NzbDrone.Common/Http/Dispatchers/ManagedHttpDispatcher.cs

@@ -44,9 +44,13 @@ namespace NzbDrone.Common.Http.Dispatchers
             _credentialCache = cacheManager.GetCache<CredentialCache>(typeof(ManagedHttpDispatcher), "credentialcache");
         }
 
-        public HttpResponse GetResponse(HttpRequest request, CookieContainer cookies)
+        public async Task<HttpResponse> GetResponseAsync(HttpRequest request, CookieContainer cookies)
         {
-            var requestMessage = new HttpRequestMessage(request.Method, (Uri)request.Url);
+            var requestMessage = new HttpRequestMessage(request.Method, (Uri)request.Url)
+            {
+                Version = HttpVersion.Version20,
+                VersionPolicy = HttpVersionPolicy.RequestVersionOrLower
+            };
             requestMessage.Headers.UserAgent.ParseAdd(_userAgentBuilder.GetUserAgent(request.UseSimplifiedUserAgent));
             requestMessage.Headers.ConnectionClose = !request.ConnectionKeepAlive;
 
@@ -99,7 +103,7 @@ namespace NzbDrone.Common.Http.Dispatchers
 
             var httpClient = GetClient(request.Url);
 
-            using var responseMessage = httpClient.Send(requestMessage, HttpCompletionOption.ResponseHeadersRead, cts.Token);
+            using var responseMessage = await httpClient.SendAsync(requestMessage, HttpCompletionOption.ResponseHeadersRead, cts.Token);
             {
                 byte[] data = null;
 
@@ -107,11 +111,11 @@ namespace NzbDrone.Common.Http.Dispatchers
                 {
                     if (request.ResponseStream != null && responseMessage.StatusCode == HttpStatusCode.OK)
                     {
-                        responseMessage.Content.CopyTo(request.ResponseStream, null, cts.Token);
+                        await responseMessage.Content.CopyToAsync(request.ResponseStream, null, cts.Token);
                     }
                     else
                     {
-                        data = responseMessage.Content.ReadAsByteArrayAsync(cts.Token).GetAwaiter().GetResult();
+                        data = await responseMessage.Content.ReadAsByteArrayAsync(cts.Token);
                     }
                 }
                 catch (Exception ex)
@@ -123,7 +127,7 @@ namespace NzbDrone.Common.Http.Dispatchers
 
                 headers.Add(responseMessage.Content.Headers.ToNameValueCollection());
 
-                return new HttpResponse(request, new HttpHeader(headers), data, responseMessage.StatusCode);
+                return new HttpResponse(request, new HttpHeader(headers), data, responseMessage.StatusCode, responseMessage.Version);
             }
         }
 
@@ -160,6 +164,8 @@ namespace NzbDrone.Common.Http.Dispatchers
 
             var client = new System.Net.Http.HttpClient(handler)
             {
+                DefaultRequestVersion = HttpVersion.Version20,
+                DefaultVersionPolicy = HttpVersionPolicy.RequestVersionOrLower,
                 Timeout = Timeout.InfiniteTimeSpan
             };
 

src/NzbDrone.Common/Http/HttpClient.cs

@@ -5,6 +5,7 @@ using System.IO;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Cache;
 using NzbDrone.Common.EnvironmentInfo;
@@ -25,6 +26,16 @@ namespace NzbDrone.Common.Http
         HttpResponse Post(HttpRequest request);
         HttpResponse<T> Post<T>(HttpRequest request)
             where T : new();
+
+        Task<HttpResponse> ExecuteAsync(HttpRequest request);
+        Task DownloadFileAsync(string url, string fileName, string userAgent = null);
+        Task<HttpResponse> GetAsync(HttpRequest request);
+        Task<HttpResponse<T>> GetAsync<T>(HttpRequest request)
+            where T : new();
+        Task<HttpResponse> HeadAsync(HttpRequest request);
+        Task<HttpResponse> PostAsync(HttpRequest request);
+        Task<HttpResponse<T>> PostAsync<T>(HttpRequest request)
+            where T : new();
     }
 
     public class HttpClient : IHttpClient
@@ -52,11 +63,11 @@ namespace NzbDrone.Common.Http
             _cookieContainerCache = cacheManager.GetCache<CookieContainer>(typeof(HttpClient));
         }
 
-        public HttpResponse Execute(HttpRequest request)
+        public virtual async Task<HttpResponse> ExecuteAsync(HttpRequest request)
         {
             var cookieContainer = InitializeRequestCookies(request);
 
-            var response = ExecuteRequest(request, cookieContainer);
+            var response = await ExecuteRequestAsync(request, cookieContainer);
 
             if (request.AllowAutoRedirect && response.HasHttpRedirect)
             {
@@ -82,7 +93,7 @@ namespace NzbDrone.Common.Http
                         request.ContentSummary = null;
                     }
 
-                    response = ExecuteRequest(request, cookieContainer);
+                    response = await ExecuteRequestAsync(request, cookieContainer);
                 }
                 while (response.HasHttpRedirect);
             }
@@ -112,6 +123,11 @@ namespace NzbDrone.Common.Http
             return response;
         }
 
+        public HttpResponse Execute(HttpRequest request)
+        {
+            return ExecuteAsync(request).GetAwaiter().GetResult();
+        }
+
         private static bool RequestRequiresForceGet(HttpStatusCode statusCode, HttpMethod requestMethod)
         {
             return statusCode switch
@@ -122,7 +138,7 @@ namespace NzbDrone.Common.Http
             };
         }
 
-        private HttpResponse ExecuteRequest(HttpRequest request, CookieContainer cookieContainer)
+        private async Task<HttpResponse> ExecuteRequestAsync(HttpRequest request, CookieContainer cookieContainer)
         {
             foreach (var interceptor in _requestInterceptors)
             {
@@ -131,14 +147,14 @@ namespace NzbDrone.Common.Http
 
             if (request.RateLimit != TimeSpan.Zero)
             {
-                _rateLimitService.WaitAndPulse(request.Url.Host, request.RateLimitKey, request.RateLimit);
+                await _rateLimitService.WaitAndPulseAsync(request.Url.Host, request.RateLimitKey, request.RateLimit);
             }
 
             _logger.Trace(request);
 
             var stopWatch = Stopwatch.StartNew();
 
-            var response = _httpDispatcher.GetResponse(request, cookieContainer);
+            var response = await _httpDispatcher.GetResponseAsync(request, cookieContainer);
 
             HandleResponseCookies(response, cookieContainer);
 
@@ -246,7 +262,7 @@ namespace NzbDrone.Common.Http
             }
         }
 
-        public void DownloadFile(string url, string fileName, string userAgent = null)
+        public async Task DownloadFileAsync(string url, string fileName, string userAgent = null)
         {
             var fileNamePart = fileName + ".part";
 
@@ -261,12 +277,13 @@ namespace NzbDrone.Common.Http
                 _logger.Debug("Downloading [{0}] to [{1}]", url, fileName);
 
                 var stopWatch = Stopwatch.StartNew();
-                using (var fileStream = new FileStream(fileNamePart, FileMode.Create, FileAccess.ReadWrite))
+                await using (var fileStream = new FileStream(fileNamePart, FileMode.Create, FileAccess.ReadWrite))
                 {
                     var request = new HttpRequest(url);
                     request.AllowAutoRedirect = true;
                     request.ResponseStream = fileStream;
-                    var response = Get(request);
+                    request.RequestTimeout = TimeSpan.FromSeconds(300);
+                    var response = await GetAsync(request);
 
                     if (response.Headers.ContentType != null && response.Headers.ContentType.Contains("text/html"))
                     {
@@ -293,38 +310,71 @@ namespace NzbDrone.Common.Http
             }
         }
 
-        public HttpResponse Get(HttpRequest request)
+        public void DownloadFile(string url, string fileName, string userAgent = null)
+        {
+            // https://docs.microsoft.com/en-us/archive/msdn-magazine/2015/july/async-programming-brownfield-async-development#the-thread-pool-hack
+            Task.Run(() => DownloadFileAsync(url, fileName, userAgent)).GetAwaiter().GetResult();
+        }
+
+        public Task<HttpResponse> GetAsync(HttpRequest request)
         {
             request.Method = HttpMethod.Get;
-            return Execute(request);
+            return ExecuteAsync(request);
+        }
+
+        public HttpResponse Get(HttpRequest request)
+        {
+            return Task.Run(() => GetAsync(request)).GetAwaiter().GetResult();
+        }
+
+        public async Task<HttpResponse<T>> GetAsync<T>(HttpRequest request)
+            where T : new()
+        {
+            var response = await GetAsync(request);
+            CheckResponseContentType(response);
+            return new HttpResponse<T>(response);
         }
 
         public HttpResponse<T> Get<T>(HttpRequest request)
             where T : new()
         {
-            var response = Get(request);
+            return Task.Run(() => GetAsync<T>(request)).GetAwaiter().GetResult();
-            CheckResponseContentType(response);
+        }
-            return new HttpResponse<T>(response);
+
+        public Task<HttpResponse> HeadAsync(HttpRequest request)
+        {
+            request.Method = HttpMethod.Head;
+            return ExecuteAsync(request);
         }
 
         public HttpResponse Head(HttpRequest request)
         {
-            request.Method = HttpMethod.Head;
+            return Task.Run(() => HeadAsync(request)).GetAwaiter().GetResult();
-            return Execute(request);
+        }
+
+        public Task<HttpResponse> PostAsync(HttpRequest request)
+        {
+            request.Method = HttpMethod.Post;
+            return ExecuteAsync(request);
         }
 
         public HttpResponse Post(HttpRequest request)
         {
-            request.Method = HttpMethod.Post;
+            return Task.Run(() => PostAsync(request)).GetAwaiter().GetResult();
-            return Execute(request);
+        }
+
+        public async Task<HttpResponse<T>> PostAsync<T>(HttpRequest request)
+            where T : new()
+        {
+            var response = await PostAsync(request);
+            CheckResponseContentType(response);
+            return new HttpResponse<T>(response);
         }
 
         public HttpResponse<T> Post<T>(HttpRequest request)
             where T : new()
         {
-            var response = Post(request);
+            return Task.Run(() => PostAsync<T>(request)).GetAwaiter().GetResult();
-            CheckResponseContentType(response);
-            return new HttpResponse<T>(response);
         }
 
         private void CheckResponseContentType(HttpResponse response)

src/NzbDrone.Common/Http/HttpRequest.cs

@@ -16,6 +16,7 @@ namespace NzbDrone.Common.Http
             Method = HttpMethod.Get;
             Url = new HttpUri(url);
             Headers = new HttpHeader();
+            ConnectionKeepAlive = true;
             AllowAutoRedirect = true;
             StoreRequestCookie = true;
             LogHttpError = true;

src/NzbDrone.Common/Http/HttpResponse.cs

@@ -9,28 +9,31 @@ namespace NzbDrone.Common.Http
 {
     public class HttpResponse
     {
-        private static readonly Regex RegexSetCookie = new Regex("^(.*?)=(.*?)(?:;|$)", RegexOptions.Compiled);
+        private static readonly Regex RegexSetCookie = new ("^(.*?)=(.*?)(?:;|$)", RegexOptions.Compiled);
 
-        public HttpResponse(HttpRequest request, HttpHeader headers, byte[] binaryData, HttpStatusCode statusCode = HttpStatusCode.OK)
+        public HttpResponse(HttpRequest request, HttpHeader headers, byte[] binaryData, HttpStatusCode statusCode = HttpStatusCode.OK, Version version = null)
         {
             Request = request;
             Headers = headers;
             ResponseData = binaryData;
             StatusCode = statusCode;
+            Version = version;
         }
 
-        public HttpResponse(HttpRequest request, HttpHeader headers, string content, HttpStatusCode statusCode = HttpStatusCode.OK)
+        public HttpResponse(HttpRequest request, HttpHeader headers, string content, HttpStatusCode statusCode = HttpStatusCode.OK, Version version = null)
         {
             Request = request;
             Headers = headers;
             ResponseData = Headers.GetEncodingFromContentType().GetBytes(content);
             _content = content;
             StatusCode = statusCode;
+            Version = version;
         }
 
         public HttpRequest Request { get; private set; }
         public HttpHeader Headers { get; private set; }
         public HttpStatusCode StatusCode { get; private set; }
+        public Version Version { get; private set; }
         public byte[] ResponseData { get; private set; }
 
         private string _content;
@@ -84,7 +87,7 @@ namespace NzbDrone.Common.Http
 
         public override string ToString()
         {
-            var result = string.Format("Res: [{0}] {1}: {2}.{3} ({4} bytes)", Request.Method, Request.Url, (int)StatusCode, StatusCode, ResponseData?.Length ?? 0);
+            var result = $"Res: HTTP/{Version} [{Request.Method}] {Request.Url}: {(int)StatusCode}.{StatusCode} ({ResponseData?.Length ?? 0} bytes)";
 
             if (HasHttpError && Headers.ContentType.IsNotNullOrWhiteSpace() && !Headers.ContentType.Equals("text/html", StringComparison.InvariantCultureIgnoreCase))
             {
@@ -99,7 +102,7 @@ namespace NzbDrone.Common.Http
         where T : new()
     {
         public HttpResponse(HttpResponse response)
-            : base(response.Request, response.Headers, response.ResponseData, response.StatusCode)
+            : base(response.Request, response.Headers, response.ResponseData, response.StatusCode, response.Version)
         {
             Resource = Json.Deserialize<T>(response.Content);
         }

src/NzbDrone.Common/Instrumentation/CleanseLogMessage.cs

@@ -20,7 +20,7 @@ namespace NzbDrone.Common.Instrumentation
             new (@"\b(\w*)?(_?(?<!use|get_)token|username|passwo?rd)=(?<secret>[^&=]+?)(?= |&|$|;)", RegexOptions.Compiled | RegexOptions.IgnoreCase),
 
             // Trackers Announce Keys; Designed for Qbit Json; should work for all in theory
-            new (@"announce(\.php)?(/|%2f|%3fpasskey%3d)(?<secret>[a-z0-9]{16,})|(?<secret>[a-z0-9]{16,})(/|%2f)announce"),
+            new (@"announce(\.php)?(/|%2f|%3fpasskey%3d)(?<secret>[a-z0-9]{16,})|(?<secret>[a-z0-9]{16,})(/|%2f)announce", RegexOptions.Compiled | RegexOptions.IgnoreCase),
 
             // Path
             new (@"C:\\Users\\(?<secret>[^\""]+?)(\\|$)", RegexOptions.Compiled | RegexOptions.IgnoreCase),

src/NzbDrone.Common/TPL/RateLimitService.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Concurrent;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Cache;
 using NzbDrone.Common.Extensions;
@@ -10,6 +11,8 @@ namespace NzbDrone.Common.TPL
     {
         void WaitAndPulse(string key, TimeSpan interval);
         void WaitAndPulse(string key, string subKey, TimeSpan interval);
+        Task WaitAndPulseAsync(string key, TimeSpan interval);
+        Task WaitAndPulseAsync(string key, string subKey, TimeSpan interval);
     }
 
     public class RateLimitService : IRateLimitService
@@ -28,7 +31,34 @@ namespace NzbDrone.Common.TPL
             WaitAndPulse(key, null, interval);
         }
 
+        public async Task WaitAndPulseAsync(string key, TimeSpan interval)
+        {
+            await WaitAndPulseAsync(key, null, interval);
+        }
+
         public void WaitAndPulse(string key, string subKey, TimeSpan interval)
+        {
+            var delay = GetDelay(key, subKey, interval);
+
+            if (delay.TotalSeconds > 0.0)
+            {
+                _logger.Trace("Rate Limit triggered, delaying '{0}' for {1:0.000} sec", key, delay.TotalSeconds);
+                System.Threading.Thread.Sleep(delay);
+            }
+        }
+
+        public async Task WaitAndPulseAsync(string key, string subKey, TimeSpan interval)
+        {
+            var delay = GetDelay(key, subKey, interval);
+
+            if (delay.TotalSeconds > 0.0)
+            {
+                _logger.Trace("Rate Limit triggered, delaying '{0}' for {1:0.000} sec", key, delay.TotalSeconds);
+                await Task.Delay(delay);
+            }
+        }
+
+        private TimeSpan GetDelay(string key, string subKey, TimeSpan interval)
         {
             var waitUntil = DateTime.UtcNow.Add(interval);
 
@@ -59,13 +89,7 @@ namespace NzbDrone.Common.TPL
 
             waitUntil -= interval;
 
-            var delay = waitUntil - DateTime.UtcNow;
+            return waitUntil - DateTime.UtcNow;
-
-            if (delay.TotalSeconds > 0.0)
-            {
-                _logger.Trace("Rate Limit triggered, delaying '{0}' for {1:0.000} sec", key, delay.TotalSeconds);
-                System.Threading.Thread.Sleep(delay);
-            }
         }
     }
 }

src/NzbDrone.Core.Test/DecisionEngineTests/RssSync/IndexerTagSpecificationFixture.cs

@@ -1,9 +1,10 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
 using NzbDrone.Core.Books;
+using NzbDrone.Core.Datastore;
 using NzbDrone.Core.DecisionEngine.Specifications.RssSync;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.IndexerSearch.Definitions;
@@ -33,8 +34,13 @@ namespace NzbDrone.Core.Test.DecisionEngineTests.RssSync
             };
 
             Mocker
-                .GetMock<IIndexerRepository>()
+                .GetMock<IIndexerFactory>()
                 .Setup(m => m.Get(It.IsAny<int>()))
+                .Throws(new ModelNotFoundException(typeof(IndexerDefinition), -1));
+
+            Mocker
+                .GetMock<IIndexerFactory>()
+                .Setup(m => m.Get(1))
                 .Returns(_fakeIndexerDefinition);
 
             _specification = Mocker.Resolve<IndexerTagSpecification>();
@@ -106,5 +112,25 @@ namespace NzbDrone.Core.Test.DecisionEngineTests.RssSync
 
             _specification.IsSatisfiedBy(_parseResultMulti, new BookSearchCriteria { MonitoredBooksOnly = true }).Accepted.Should().BeFalse();
         }
+
+        [Test]
+        public void release_without_indexerid_should_return_true()
+        {
+            _fakeIndexerDefinition.Tags = new HashSet<int> { 456 };
+            _fakeAuthor.Tags = new HashSet<int> { 123, 789 };
+            _fakeRelease.IndexerId = 0;
+
+            _specification.IsSatisfiedBy(_parseResultMulti, new BookSearchCriteria { MonitoredBooksOnly = true }).Accepted.Should().BeTrue();
+        }
+
+        [Test]
+        public void release_with_invalid_indexerid_should_return_true()
+        {
+            _fakeIndexerDefinition.Tags = new HashSet<int> { 456 };
+            _fakeAuthor.Tags = new HashSet<int> { 123, 789 };
+            _fakeRelease.IndexerId = 2;
+
+            _specification.IsSatisfiedBy(_parseResultMulti, new BookSearchCriteria { MonitoredBooksOnly = true }).Accepted.Should().BeTrue();
+        }
     }
 }

src/NzbDrone.Core.Test/Download/DownloadApprovedReportsTests/DownloadApprovedFixture.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -58,7 +59,7 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
         }
 
         [Test]
-        public void should_download_report_if_book_was_not_already_downloaded()
+        public async Task should_download_report_if_book_was_not_already_downloaded()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -66,12 +67,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             var decisions = new List<DownloadDecision>();
             decisions.Add(new DownloadDecision(remoteBook));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.IsAny<RemoteBook>()), Times.Once());
         }
 
         [Test]
-        public void should_only_download_book_once()
+        public async Task should_only_download_book_once()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -80,12 +81,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook));
             decisions.Add(new DownloadDecision(remoteBook));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.IsAny<RemoteBook>()), Times.Once());
         }
 
         [Test]
-        public void should_not_download_if_any_book_was_already_downloaded()
+        public async Task should_not_download_if_any_book_was_already_downloaded()
         {
             var remoteBook1 = GetRemoteBook(
                                                     new List<Book> { GetBook(1) },
@@ -99,12 +100,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook1));
             decisions.Add(new DownloadDecision(remoteBook2));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.IsAny<RemoteBook>()), Times.Once());
         }
 
         [Test]
-        public void should_return_downloaded_reports()
+        public async Task should_return_downloaded_reports()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -112,11 +113,13 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             var decisions = new List<DownloadDecision>();
             decisions.Add(new DownloadDecision(remoteBook));
 
-            Subject.ProcessDecisions(decisions).Grabbed.Should().HaveCount(1);
+            var result = await Subject.ProcessDecisions(decisions);
+
+            result.Grabbed.Should().HaveCount(1);
         }
 
         [Test]
-        public void should_return_all_downloaded_reports()
+        public async Task should_return_all_downloaded_reports()
         {
             var remoteBook1 = GetRemoteBook(
                                                     new List<Book> { GetBook(1) },
@@ -130,11 +133,13 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook1));
             decisions.Add(new DownloadDecision(remoteBook2));
 
-            Subject.ProcessDecisions(decisions).Grabbed.Should().HaveCount(2);
+            var result = await Subject.ProcessDecisions(decisions);
+
+            result.Grabbed.Should().HaveCount(2);
         }
 
         [Test]
-        public void should_only_return_downloaded_reports()
+        public async Task should_only_return_downloaded_reports()
         {
             var remoteBook1 = GetRemoteBook(
                                                     new List<Book> { GetBook(1) },
@@ -153,11 +158,13 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook2));
             decisions.Add(new DownloadDecision(remoteBook3));
 
-            Subject.ProcessDecisions(decisions).Grabbed.Should().HaveCount(2);
+            var result = await Subject.ProcessDecisions(decisions);
+
+            result.Grabbed.Should().HaveCount(2);
         }
 
         [Test]
-        public void should_not_add_to_downloaded_list_when_download_fails()
+        public async Task should_not_add_to_downloaded_list_when_download_fails()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -166,7 +173,11 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook));
 
             Mocker.GetMock<IDownloadService>().Setup(s => s.DownloadReport(It.IsAny<RemoteBook>())).Throws(new Exception());
-            Subject.ProcessDecisions(decisions).Grabbed.Should().BeEmpty();
+
+            var result = await Subject.ProcessDecisions(decisions);
+
+            result.Grabbed.Should().BeEmpty();
+
             ExceptionVerification.ExpectedWarns(1);
         }
 
@@ -181,7 +192,7 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
         }
 
         [Test]
-        public void should_not_grab_if_pending()
+        public async Task should_not_grab_if_pending()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -189,12 +200,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             var decisions = new List<DownloadDecision>();
             decisions.Add(new DownloadDecision(remoteBook, new Rejection("Failure!", RejectionType.Temporary)));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.IsAny<RemoteBook>()), Times.Never());
         }
 
         [Test]
-        public void should_not_add_to_pending_if_book_was_grabbed()
+        public async Task should_not_add_to_pending_if_book_was_grabbed()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -203,12 +214,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook));
             decisions.Add(new DownloadDecision(remoteBook, new Rejection("Failure!", RejectionType.Temporary)));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IPendingReleaseService>().Verify(v => v.AddMany(It.IsAny<List<Tuple<DownloadDecision, PendingReleaseReason>>>()), Times.Never());
         }
 
         [Test]
-        public void should_add_to_pending_even_if_already_added_to_pending()
+        public async Task should_add_to_pending_even_if_already_added_to_pending()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -217,12 +228,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             decisions.Add(new DownloadDecision(remoteBook, new Rejection("Failure!", RejectionType.Temporary)));
             decisions.Add(new DownloadDecision(remoteBook, new Rejection("Failure!", RejectionType.Temporary)));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IPendingReleaseService>().Verify(v => v.AddMany(It.IsAny<List<Tuple<DownloadDecision, PendingReleaseReason>>>()), Times.Once());
         }
 
         [Test]
-        public void should_add_to_failed_if_already_failed_for_that_protocol()
+        public async Task should_add_to_failed_if_already_failed_for_that_protocol()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -234,12 +245,12 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             Mocker.GetMock<IDownloadService>().Setup(s => s.DownloadReport(It.IsAny<RemoteBook>()))
                   .Throws(new DownloadClientUnavailableException("Download client failed"));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.IsAny<RemoteBook>()), Times.Once());
         }
 
         [Test]
-        public void should_not_add_to_failed_if_failed_for_a_different_protocol()
+        public async Task should_not_add_to_failed_if_failed_for_a_different_protocol()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3), DownloadProtocol.Usenet);
@@ -252,13 +263,13 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
             Mocker.GetMock<IDownloadService>().Setup(s => s.DownloadReport(It.Is<RemoteBook>(r => r.Release.DownloadProtocol == DownloadProtocol.Usenet)))
                   .Throws(new DownloadClientUnavailableException("Download client failed"));
 
-            Subject.ProcessDecisions(decisions);
+            await Subject.ProcessDecisions(decisions);
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.Is<RemoteBook>(r => r.Release.DownloadProtocol == DownloadProtocol.Usenet)), Times.Once());
             Mocker.GetMock<IDownloadService>().Verify(v => v.DownloadReport(It.Is<RemoteBook>(r => r.Release.DownloadProtocol == DownloadProtocol.Torrent)), Times.Once());
         }
 
         [Test]
-        public void should_add_to_rejected_if_release_unavailable_on_indexer()
+        public async Task should_add_to_rejected_if_release_unavailable_on_indexer()
         {
             var books = new List<Book> { GetBook(1) };
             var remoteBook = GetRemoteBook(books, new QualityModel(Quality.MP3));
@@ -270,7 +281,7 @@ namespace NzbDrone.Core.Test.Download.DownloadApprovedReportsTests
                   .Setup(s => s.DownloadReport(It.IsAny<RemoteBook>()))
                   .Throws(new ReleaseUnavailableException(remoteBook.Release, "That 404 Error is not just a Quirk"));
 
-            var result = Subject.ProcessDecisions(decisions);
+            var result = await Subject.ProcessDecisions(decisions);
 
             result.Grabbed.Should().BeEmpty();
             result.Rejected.Should().NotBeEmpty();

src/NzbDrone.Core.Test/Download/DownloadClientTests/Blackhole/TorrentBlackholeFixture.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.IO.Abstractions;
 using System.Linq;
 using System.Net;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -69,7 +70,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
         protected void GivenFailedDownload()
         {
             Mocker.GetMock<IHttpClient>()
-                .Setup(s => s.Get(It.IsAny<HttpRequest>()))
+                .Setup(s => s.GetAsync(It.IsAny<HttpRequest>()))
                 .Throws(new WebException());
         }
 
@@ -147,19 +148,19 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
         }
 
         [Test]
-        public void Download_should_download_file_if_it_doesnt_exist()
+        public async Task Download_should_download_file_if_it_doesnt_exist()
         {
             var remoteBook = CreateRemoteBook();
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_filePath), Times.Once());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
-        public void Download_should_save_magnet_if_enabled()
+        public async Task Download_should_save_magnet_if_enabled()
         {
             GivenMagnetFilePath();
             Subject.Definition.Settings.As<TorrentBlackholeSettings>().SaveMagnetFiles = true;
@@ -167,16 +168,16 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = null;
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Never());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_filePath), Times.Never());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_magnetFilePath), Times.Once());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
-        public void Download_should_save_magnet_using_specified_extension()
+        public async Task Download_should_save_magnet_using_specified_extension()
         {
             var magnetFileExtension = ".url";
             GivenMagnetFilePath(magnetFileExtension);
@@ -187,12 +188,12 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = null;
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Never());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_filePath), Times.Never());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_magnetFilePath), Times.Once());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
@@ -202,31 +203,31 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = null;
 
-            Assert.Throws<ReleaseDownloadException>(() => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync<ReleaseDownloadException>(async () => await Subject.Download(remoteBook, CreateIndexer()));
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Never());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_filePath), Times.Never());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_magnetFilePath), Times.Never());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
-        public void Download_should_prefer_torrent_over_magnet()
+        public async Task Download_should_prefer_torrent_over_magnet()
         {
             Subject.Definition.Settings.As<TorrentBlackholeSettings>().SaveMagnetFiles = true;
 
             var remoteBook = CreateRemoteBook();
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_filePath), Times.Once());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_magnetFilePath), Times.Never());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
-        public void Download_should_replace_illegal_characters_in_title()
+        public async Task Download_should_replace_illegal_characters_in_title()
         {
             var illegalTitle = "Radiohead - Scotch Mist [2008/FLAC/Lossless]";
             var expectedFilename = Path.Combine(_blackholeFolder, "Radiohead - Scotch Mist [2008+FLAC+Lossless]" + Path.GetExtension(_filePath));
@@ -234,11 +235,11 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.Title = illegalTitle;
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(expectedFilename), Times.Once());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
@@ -247,7 +248,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = null;
 
-            Assert.Throws<ReleaseDownloadException>(() => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync<ReleaseDownloadException>(async () => await Subject.Download(remoteBook, CreateIndexer()));
         }
 
         [Test]
@@ -317,11 +318,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
         }
 
         [Test]
-        public void should_return_null_hash()
+        public async Task should_return_null_hash()
         {
             var remoteBook = CreateRemoteBook();
 
-            Subject.Download(remoteBook, CreateIndexer()).Should().BeNull();
+            var result = await Subject.Download(remoteBook, CreateIndexer());
+
+            result.Should().BeNull();
         }
     }
 }

src/NzbDrone.Core.Test/Download/DownloadClientTests/Blackhole/UsenetBlackholeFixture.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.IO.Abstractions;
 using System.Linq;
 using System.Net;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -119,19 +120,19 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
         }
 
         [Test]
-        public void Download_should_download_file_if_it_doesnt_exist()
+        public async Task Download_should_download_file_if_it_doesnt_exist()
         {
             var remoteBook = CreateRemoteBook();
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(_filePath), Times.Once());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]
-        public void Download_should_replace_illegal_characters_in_title()
+        public async Task Download_should_replace_illegal_characters_in_title()
         {
             var illegalTitle = "Radiohead - Scotch Mist [2008/FLAC/Lossless]";
             var expectedFilename = Path.Combine(_blackholeFolder, "Radiohead - Scotch Mist [2008+FLAC+Lossless]" + Path.GetExtension(_filePath));
@@ -139,11 +140,11 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.Blackhole
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.Title = illegalTitle;
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.Get(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.GetAsync(It.Is<HttpRequest>(v => v.Url.FullUri == _downloadUrl)), Times.Once());
             Mocker.GetMock<IDiskProvider>().Verify(c => c.OpenWriteStream(expectedFilename), Times.Once());
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>()), Times.Never());
         }
 
         [Test]

src/NzbDrone.Core.Test/Download/DownloadClientTests/DelugeTests/DelugeFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -200,26 +201,26 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DelugeTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
 
         [TestCase("magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR&tr=udp", "CBC2F069FE8BB2F544EAE707D75BCD3DE9DCF951")]
-        public void Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
+        public async Task Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = magnetUrl;
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().Be(expectedHash);
         }

src/NzbDrone.Core.Test/Download/DownloadClientTests/DownloadClientFixtureBase.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NLog;
@@ -36,8 +37,8 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests
                 .Returns(() => CreateRemoteBook());
 
             Mocker.GetMock<IHttpClient>()
-                  .Setup(s => s.Get(It.IsAny<HttpRequest>()))
+                  .Setup(s => s.GetAsync(It.IsAny<HttpRequest>()))
-                  .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), new byte[0]));
+                  .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), Array.Empty<byte>())));
 
             Mocker.GetMock<IRemotePathMappingService>()
                 .Setup(v => v.RemapRemoteToLocal(It.IsAny<string>(), It.IsAny<OsPath>()))

src/NzbDrone.Core.Test/Download/DownloadClientTests/DownloadStationTests/TorrentDownloadStationFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -385,7 +386,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
         }
 
         [Test]
-        public void Download_with_TvDirectory_should_force_directory()
+        public async Task Download_with_TvDirectory_should_force_directory()
         {
             GivenSerialNumber();
             GivenTvDirectory();
@@ -393,7 +394,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -402,7 +403,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
         }
 
         [Test]
-        public void Download_with_category_should_force_directory()
+        public async Task Download_with_category_should_force_directory()
         {
             GivenSerialNumber();
             GivenMusicCategory();
@@ -410,7 +411,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -419,14 +420,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
         }
 
         [Test]
-        public void Download_without_TvDirectory_and_Category_should_use_default()
+        public async Task Download_without_TvDirectory_and_Category_should_use_default()
         {
             GivenSerialNumber();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -505,7 +506,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
                   .Setup(s => s.GetSerialNumber(_settings))
                   .Throws(new ApplicationException("Some unknown exception, HttpException or DownloadClientException"));
 
-            Assert.Throws(Is.InstanceOf<Exception>(), () => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync(Is.InstanceOf<Exception>(), async () => await Subject.Download(remoteBook, CreateIndexer()));
 
             Mocker.GetMock<IDownloadStationTaskProxy>()
                   .Verify(v => v.AddTaskFromUrl(It.IsAny<string>(), null, _settings), Times.Never());

src/NzbDrone.Core.Test/Download/DownloadClientTests/DownloadStationTests/UsenetDownloadStationFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -262,7 +263,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
         }
 
         [Test]
-        public void Download_with_TvDirectory_should_force_directory()
+        public async Task Download_with_TvDirectory_should_force_directory()
         {
             GivenSerialNumber();
             GivenTvDirectory();
@@ -270,7 +271,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -279,7 +280,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
         }
 
         [Test]
-        public void Download_with_category_should_force_directory()
+        public async Task Download_with_category_should_force_directory()
         {
             GivenSerialNumber();
             GivenMusicCategory();
@@ -287,7 +288,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -296,14 +297,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
         }
 
         [Test]
-        public void Download_without_TvDirectory_and_Category_should_use_default()
+        public async Task Download_without_TvDirectory_and_Category_should_use_default()
         {
             GivenSerialNumber();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -382,7 +383,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.DownloadStationTests
                   .Setup(s => s.GetSerialNumber(_settings))
                   .Throws(new ApplicationException("Some unknown exception, HttpException or DownloadClientException"));
 
-            Assert.Throws(Is.InstanceOf<Exception>(), () => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync(Is.InstanceOf<Exception>(), async () => await Subject.Download(remoteBook, CreateIndexer()));
 
             Mocker.GetMock<IDownloadStationTaskProxy>()
                   .Verify(v => v.AddTaskFromUrl(It.IsAny<string>(), null, _settings), Times.Never());

src/NzbDrone.Core.Test/Download/DownloadClientTests/HadoukenTests/HadoukenFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -103,8 +104,8 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.HadoukenTests
         protected void GivenSuccessfulDownload()
         {
             Mocker.GetMock<IHttpClient>()
-                  .Setup(s => s.Get(It.IsAny<HttpRequest>()))
+                  .Setup(s => s.GetAsync(It.IsAny<HttpRequest>()))
-                  .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), new byte[1000]));
+                  .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), new byte[1000])));
 
             Mocker.GetMock<IHadoukenProxy>()
                 .Setup(s => s.AddTorrentUri(It.IsAny<HadoukenSettings>(), It.IsAny<string>()))
@@ -196,13 +197,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.HadoukenTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
@@ -277,7 +278,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.HadoukenTests
         }
 
         [Test]
-        public void Download_from_magnet_link_should_return_hash_uppercase()
+        public async Task Download_from_magnet_link_should_return_hash_uppercase()
         {
             var remoteBook = CreateRemoteBook();
 
@@ -286,13 +287,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.HadoukenTests
             Mocker.GetMock<IHadoukenProxy>()
                .Setup(v => v.AddTorrentUri(It.IsAny<HadoukenSettings>(), It.IsAny<string>()));
 
-            var result = Subject.Download(remoteBook, CreateIndexer());
+            var result = await Subject.Download(remoteBook, CreateIndexer());
 
             Assert.IsFalse(result.Any(c => char.IsLower(c)));
         }
 
         [Test]
-        public void Download_from_torrent_file_should_return_hash_uppercase()
+        public async Task Download_from_torrent_file_should_return_hash_uppercase()
         {
             var remoteBook = CreateRemoteBook();
 
@@ -300,7 +301,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.HadoukenTests
                .Setup(v => v.AddTorrentFile(It.IsAny<HadoukenSettings>(), It.IsAny<byte[]>()))
                .Returns("hash");
 
-            var result = Subject.Download(remoteBook, CreateIndexer());
+            var result = await Subject.Download(remoteBook, CreateIndexer());
 
             Assert.IsFalse(result.Any(c => char.IsLower(c)));
         }

src/NzbDrone.Core.Test/Download/DownloadClientTests/NzbVortexTests/NzbVortexFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -200,13 +201,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbVortexTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
@@ -218,7 +219,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbVortexTests
 
             var remoteBook = CreateRemoteBook();
 
-            Assert.Throws<DownloadClientException>(() => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync<DownloadClientException>(async () => await Subject.Download(remoteBook, CreateIndexer()));
         }
 
         [Test]

src/NzbDrone.Core.Test/Download/DownloadClientTests/NzbgetTests/NzbgetFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -339,13 +340,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
@@ -357,7 +358,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.NzbgetTests
 
             var remoteBook = CreateRemoteBook();
 
-            Assert.Throws<DownloadClientRejectedReleaseException>(() => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync<DownloadClientRejectedReleaseException>(async () => await Subject.Download(remoteBook, CreateIndexer()));
         }
 
         [Test]

src/NzbDrone.Core.Test/Download/DownloadClientTests/PneumaticProviderFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using System.Net;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using Moq;
 using NLog;
@@ -65,15 +66,15 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests
 
         private void WithFailedDownload()
         {
-            Mocker.GetMock<IHttpClient>().Setup(c => c.DownloadFile(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new WebException());
+            Mocker.GetMock<IHttpClient>().Setup(c => c.DownloadFileAsync(It.IsAny<string>(), It.IsAny<string>(), It.IsAny<string>())).Throws(new WebException());
         }
 
         [Test]
-        public void should_download_file_if_it_doesnt_exist()
+        public async Task should_download_file_if_it_doesnt_exist()
         {
-            Subject.Download(_remoteBook, _indexer);
+            await Subject.Download(_remoteBook, _indexer);
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(_nzbUrl, _nzbPath, null), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(_nzbUrl, _nzbPath, null), Times.Once());
         }
 
         [Test]
@@ -81,7 +82,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests
         {
             WithFailedDownload();
 
-            Assert.Throws<WebException>(() => Subject.Download(_remoteBook, _indexer));
+            Assert.ThrowsAsync<WebException>(async () => await Subject.Download(_remoteBook, _indexer));
         }
 
         [Test]
@@ -90,7 +91,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests
             _remoteBook.Release.Title = "Alien Ant Farm - Discography";
             _remoteBook.ParsedBookInfo.Discography = true;
 
-            Assert.Throws<NotSupportedException>(() => Subject.Download(_remoteBook, _indexer));
+            Assert.ThrowsAsync<NotSupportedException>(async () => await Subject.Download(_remoteBook, _indexer));
         }
 
         [Test]
@@ -100,15 +101,15 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests
         }
 
         [Test]
-        public void should_replace_illegal_characters_in_title()
+        public async Task should_replace_illegal_characters_in_title()
         {
             var illegalTitle = "Saturday Night Live - S38E08 - Jeremy Renner/Maroon 5 [SDTV]";
             var expectedFilename = Path.Combine(_pneumaticFolder, "Saturday Night Live - S38E08 - Jeremy Renner+Maroon 5 [SDTV].nzb");
             _remoteBook.Release.Title = illegalTitle;
 
-            Subject.Download(_remoteBook, _indexer);
+            await Subject.Download(_remoteBook, _indexer);
 
-            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFile(It.IsAny<string>(), expectedFilename, null), Times.Once());
+            Mocker.GetMock<IHttpClient>().Verify(c => c.DownloadFileAsync(It.IsAny<string>(), expectedFilename, null), Times.Once());
         }
     }
 }

src/NzbDrone.Core.Test/Download/DownloadClientTests/QBittorrentTests/QBittorrentFixture.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -404,7 +405,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
                 Size = 1000,
                 Progress = 0.7,
                 Eta = 8640000,
-                State = "stalledDL",
+                State = "pausedUP",
                 Label = "",
                 SavePath = @"C:\Torrents".AsOsAgnostic(),
                 ContentPath = @"C:\Torrents\Droned.S01.12".AsOsAgnostic()
@@ -449,26 +450,26 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
 
         [TestCase("magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR&tr=udp", "CBC2F069FE8BB2F544EAE707D75BCD3DE9DCF951")]
-        public void Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
+        public async Task Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = magnetUrl;
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().Be(expectedHash);
         }
@@ -483,7 +484,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = "magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR";
 
-            Assert.Throws<ReleaseDownloadException>(() => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.ThrowsAsync<ReleaseDownloadException>(async () => await Subject.Download(remoteBook, CreateIndexer()));
         }
 
         [Test]
@@ -496,28 +497,28 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = "magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR&tr=udp://abc";
 
-            Assert.DoesNotThrow(() => Subject.Download(remoteBook, CreateIndexer()));
+            Assert.DoesNotThrowAsync(async () => await Subject.Download(remoteBook, CreateIndexer()));
 
             Mocker.GetMock<IQBittorrentProxy>()
                   .Verify(s => s.AddTorrentFromUrl(It.IsAny<string>(), It.IsAny<TorrentSeedConfiguration>(), It.IsAny<QBittorrentSettings>()), Times.Once());
         }
 
         [Test]
-        public void Download_should_set_top_priority()
+        public async Task Download_should_set_top_priority()
         {
             GivenHighPriority();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             Mocker.GetMock<IQBittorrentProxy>()
                   .Verify(v => v.MoveTorrentToTopInQueue(It.IsAny<string>(), It.IsAny<QBittorrentSettings>()), Times.Once());
         }
 
         [Test]
-        public void Download_should_not_fail_if_top_priority_not_available()
+        public async Task Download_should_not_fail_if_top_priority_not_available()
         {
             GivenHighPriority();
             GivenSuccessfulDownload();
@@ -528,7 +529,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -555,27 +556,27 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
         }
 
         [Test]
-        public void Download_should_handle_http_redirect_to_magnet()
+        public async Task Download_should_handle_http_redirect_to_magnet()
         {
             GivenRedirectToMagnet();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
 
         [Test]
-        public void Download_should_handle_http_redirect_to_torrent()
+        public async Task Download_should_handle_http_redirect_to_torrent()
         {
             GivenRedirectToTorrent();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
@@ -633,7 +634,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.QBittorrentTests
                 .Returns(new QBittorrentTorrentProperties
                 {
                     Hash = "HASH",
-                    SeedingTime = seedingTime
+                    SeedingTime = seedingTime * 60
                 });
 
             return torrent;

src/NzbDrone.Core.Test/Download/DownloadClientTests/RTorrentTests/RTorrentFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -121,13 +122,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.RTorrentTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }

src/NzbDrone.Core.Test/Download/DownloadClientTests/SabnzbdTests/SabnzbdFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -300,27 +301,27 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.SabnzbdTests
         }
 
         [TestCase("[ TOWN ]-[ http://www.town.ag ]-[ ANIME ]-[Usenet Provider >> http://www.ssl- <<] - [Commie] Aldnoah Zero 18 [234C8FC7]", "[ TOWN ]-[ http-++www.town.ag ]-[ ANIME ]-[Usenet Provider  http-++www.ssl- ] - [Commie] Aldnoah Zero 18 [234C8FC7].nzb")]
-        public void Download_should_use_clean_title(string title, string filename)
+        public async Task Download_should_use_clean_title(string title, string filename)
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.Title = title;
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             Mocker.GetMock<ISabnzbdProxy>()
                 .Verify(v => v.DownloadNzb(It.IsAny<byte[]>(), filename, It.IsAny<string>(), It.IsAny<int>(), It.IsAny<SabnzbdSettings>()), Times.Once());
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
@@ -353,7 +354,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.SabnzbdTests
         }
 
         [Test]
-        public void Download_should_use_sabRecentTvPriority_when_recentEpisode_is_true()
+        public async Task Download_should_use_sabRecentTvPriority_when_recentEpisode_is_true()
         {
             Mocker.GetMock<ISabnzbdProxy>()
                     .Setup(s => s.DownloadNzb(It.IsAny<byte[]>(), It.IsAny<string>(), It.IsAny<string>(), (int)SabnzbdPriority.High, It.IsAny<SabnzbdSettings>()))
@@ -366,7 +367,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.SabnzbdTests
                                                       .Build()
                                                       .ToList();
 
-            Subject.Download(remoteBook, CreateIndexer());
+            await Subject.Download(remoteBook, CreateIndexer());
 
             Mocker.GetMock<ISabnzbdProxy>()
                   .Verify(v => v.DownloadNzb(It.IsAny<byte[]>(), It.IsAny<string>(), It.IsAny<string>(), (int)SabnzbdPriority.High, It.IsAny<SabnzbdSettings>()), Times.Once());
@@ -451,6 +452,30 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.SabnzbdTests
             result.OutputRootFolders.First().Should().Be(fullCategoryDir);
         }
 
+        [TestCase("0")]
+        [TestCase("15d")]
+        public void should_set_history_removes_completed_downloads_false(string historyRetention)
+        {
+            _config.Misc.history_retention = historyRetention;
+
+            var downloadClientInfo = Subject.GetStatus();
+
+            downloadClientInfo.RemovesCompletedDownloads.Should().BeFalse();
+        }
+
+        [TestCase("-1")]
+        [TestCase("15")]
+        [TestCase("3")]
+        [TestCase("3d")]
+        public void should_set_history_removes_completed_downloads_true(string historyRetention)
+        {
+            _config.Misc.history_retention = historyRetention;
+
+            var downloadClientInfo = Subject.GetStatus();
+
+            downloadClientInfo.RemovesCompletedDownloads.Should().BeTrue();
+        }
+
         [TestCase(@"Y:\nzbget\root", @"completed\downloads", @"vv", @"Y:\nzbget\root\completed\downloads", @"Y:\nzbget\root\completed\downloads\vv")]
         [TestCase(@"Y:\nzbget\root", @"completed", @"vv", @"Y:\nzbget\root\completed", @"Y:\nzbget\root\completed\vv")]
         [TestCase(@"/nzbget/root", @"completed/downloads", @"vv", @"/nzbget/root/completed/downloads", @"/nzbget/root/completed/downloads/vv")]

src/NzbDrone.Core.Test/Download/DownloadClientTests/TransmissionTests/TransmissionFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -55,26 +56,26 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.TransmissionTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
 
         [Test]
-        public void Download_with_TvDirectory_should_force_directory()
+        public async Task Download_with_TvDirectory_should_force_directory()
         {
             GivenTvDirectory();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -83,14 +84,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.TransmissionTests
         }
 
         [Test]
-        public void Download_with_category_should_force_directory()
+        public async Task Download_with_category_should_force_directory()
         {
             GivenMusicCategory();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -99,7 +100,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.TransmissionTests
         }
 
         [Test]
-        public void Download_with_category_should_not_have_double_slashes()
+        public async Task Download_with_category_should_not_have_double_slashes()
         {
             GivenMusicCategory();
             GivenSuccessfulDownload();
@@ -108,7 +109,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.TransmissionTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -117,13 +118,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.TransmissionTests
         }
 
         [Test]
-        public void Download_without_TvDirectory_and_Category_should_use_default()
+        public async Task Download_without_TvDirectory_and_Category_should_use_default()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -132,14 +133,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.TransmissionTests
         }
 
         [TestCase("magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR&tr=udp", "CBC2F069FE8BB2F544EAE707D75BCD3DE9DCF951")]
-        public void Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
+        public async Task Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = magnetUrl;
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().Be(expectedHash);
         }

src/NzbDrone.Core.Test/Download/DownloadClientTests/UTorrentTests/UTorrentFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -228,13 +229,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.UTorrentTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
@@ -252,14 +253,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.UTorrentTests
 
         // Proxy.GetTorrents does not return original url. So item has to be found via magnet url.
         [TestCase("magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR&tr=udp", "CBC2F069FE8BB2F544EAE707D75BCD3DE9DCF951")]
-        public void Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
+        public async Task Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = magnetUrl;
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().Be(expectedHash);
         }
@@ -350,27 +351,27 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.UTorrentTests
         }
 
         [Test]
-        public void Download_should_handle_http_redirect_to_magnet()
+        public async Task Download_should_handle_http_redirect_to_magnet()
         {
             GivenRedirectToMagnet();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
 
         [Test]
-        public void Download_should_handle_http_redirect_to_torrent()
+        public async Task Download_should_handle_http_redirect_to_torrent()
         {
             GivenRedirectToTorrent();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }

src/NzbDrone.Core.Test/Download/DownloadClientTests/VuzeTests/VuzeFixture.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -63,26 +64,26 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.VuzeTests
         }
 
         [Test]
-        public void Download_should_return_unique_id()
+        public async Task Download_should_return_unique_id()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
         }
 
         [Test]
-        public void Download_with_TvDirectory_should_force_directory()
+        public async Task Download_with_TvDirectory_should_force_directory()
         {
             GivenTvDirectory();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -91,14 +92,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.VuzeTests
         }
 
         [Test]
-        public void Download_with_category_should_force_directory()
+        public async Task Download_with_category_should_force_directory()
         {
             GivenMusicCategory();
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -107,7 +108,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.VuzeTests
         }
 
         [Test]
-        public void Download_with_category_should_not_have_double_slashes()
+        public async Task Download_with_category_should_not_have_double_slashes()
         {
             GivenMusicCategory();
             GivenSuccessfulDownload();
@@ -116,7 +117,7 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.VuzeTests
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -125,13 +126,13 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.VuzeTests
         }
 
         [Test]
-        public void Download_without_TvDirectory_and_Category_should_use_default()
+        public async Task Download_without_TvDirectory_and_Category_should_use_default()
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().NotBeNullOrEmpty();
 
@@ -140,14 +141,14 @@ namespace NzbDrone.Core.Test.Download.DownloadClientTests.VuzeTests
         }
 
         [TestCase("magnet:?xt=urn:btih:ZPBPA2P6ROZPKRHK44D5OW6NHXU5Z6KR&tr=udp", "CBC2F069FE8BB2F544EAE707D75BCD3DE9DCF951")]
-        public void Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
+        public async Task Download_should_get_hash_from_magnet_url(string magnetUrl, string expectedHash)
         {
             GivenSuccessfulDownload();
 
             var remoteBook = CreateRemoteBook();
             remoteBook.Release.DownloadUrl = magnetUrl;
 
-            var id = Subject.Download(remoteBook, CreateIndexer());
+            var id = await Subject.Download(remoteBook, CreateIndexer());
 
             id.Should().Be(expectedHash);
         }

src/NzbDrone.Core.Test/Download/DownloadServiceFixture.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using Moq;
 using NUnit.Framework;
@@ -77,23 +78,23 @@ namespace NzbDrone.Core.Test.Download
         }
 
         [Test]
-        public void Download_report_should_publish_on_grab_event()
+        public async Task Download_report_should_publish_on_grab_event()
         {
             var mock = WithUsenetClient();
             mock.Setup(s => s.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()));
 
-            Subject.DownloadReport(_parseResult);
+            await Subject.DownloadReport(_parseResult);
 
             VerifyEventPublished<BookGrabbedEvent>();
         }
 
         [Test]
-        public void Download_report_should_grab_using_client()
+        public async Task Download_report_should_grab_using_client()
         {
             var mock = WithUsenetClient();
             mock.Setup(s => s.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()));
 
-            Subject.DownloadReport(_parseResult);
+            await Subject.DownloadReport(_parseResult);
 
             mock.Verify(s => s.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Once());
         }
@@ -105,7 +106,7 @@ namespace NzbDrone.Core.Test.Download
             mock.Setup(s => s.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()))
                 .Throws(new WebException());
 
-            Assert.Throws<WebException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<WebException>(async () => await Subject.DownloadReport(_parseResult));
 
             VerifyEventNotPublished<BookGrabbedEvent>();
         }
@@ -120,7 +121,7 @@ namespace NzbDrone.Core.Test.Download
                     throw new ReleaseDownloadException(v.Release, "Error", new WebException());
                 });
 
-            Assert.Throws<ReleaseDownloadException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<ReleaseDownloadException>(async () => await Subject.DownloadReport(_parseResult));
 
             Mocker.GetMock<IIndexerStatusService>()
                 .Verify(v => v.RecordFailure(It.IsAny<int>(), It.IsAny<TimeSpan>()), Times.Once());
@@ -140,7 +141,7 @@ namespace NzbDrone.Core.Test.Download
                     throw new ReleaseDownloadException(v.Release, "Error", new TooManyRequestsException(request, response));
                 });
 
-            Assert.Throws<ReleaseDownloadException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<ReleaseDownloadException>(async () => await Subject.DownloadReport(_parseResult));
 
             Mocker.GetMock<IIndexerStatusService>()
                 .Verify(v => v.RecordFailure(It.IsAny<int>(), TimeSpan.FromMinutes(5.0)), Times.Once());
@@ -160,7 +161,7 @@ namespace NzbDrone.Core.Test.Download
                     throw new ReleaseDownloadException(v.Release, "Error", new TooManyRequestsException(request, response));
                 });
 
-            Assert.Throws<ReleaseDownloadException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<ReleaseDownloadException>(async () => await Subject.DownloadReport(_parseResult));
 
             Mocker.GetMock<IIndexerStatusService>()
                 .Verify(v => v.RecordFailure(It.IsAny<int>(),
@@ -174,7 +175,7 @@ namespace NzbDrone.Core.Test.Download
             mock.Setup(s => s.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()))
                 .Throws(new DownloadClientException("Some Error"));
 
-            Assert.Throws<DownloadClientException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<DownloadClientException>(async () => await Subject.DownloadReport(_parseResult));
 
             Mocker.GetMock<IIndexerStatusService>()
                 .Verify(v => v.RecordFailure(It.IsAny<int>(), It.IsAny<TimeSpan>()), Times.Never());
@@ -190,7 +191,7 @@ namespace NzbDrone.Core.Test.Download
                     throw new ReleaseUnavailableException(v.Release, "Error", new WebException());
                 });
 
-            Assert.Throws<ReleaseUnavailableException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<ReleaseUnavailableException>(async () => await Subject.DownloadReport(_parseResult));
 
             Mocker.GetMock<IIndexerStatusService>()
                 .Verify(v => v.RecordFailure(It.IsAny<int>(), It.IsAny<TimeSpan>()), Times.Never());
@@ -199,14 +200,14 @@ namespace NzbDrone.Core.Test.Download
         [Test]
         public void should_not_attempt_download_if_client_isnt_configured()
         {
-            Assert.Throws<DownloadClientUnavailableException>(() => Subject.DownloadReport(_parseResult));
+            Assert.ThrowsAsync<DownloadClientUnavailableException>(async () => await Subject.DownloadReport(_parseResult));
 
             Mocker.GetMock<IDownloadClient>().Verify(c => c.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Never());
             VerifyEventNotPublished<BookGrabbedEvent>();
         }
 
         [Test]
-        public void should_attempt_download_even_if_client_is_disabled()
+        public async Task should_attempt_download_even_if_client_is_disabled()
         {
             var mockUsenet = WithUsenetClient();
 
@@ -221,7 +222,7 @@ namespace NzbDrone.Core.Test.Download
                         }
                     });
 
-            Subject.DownloadReport(_parseResult);
+            await Subject.DownloadReport(_parseResult);
 
             Mocker.GetMock<IDownloadClientStatusService>().Verify(c => c.GetBlockedProviders(), Times.Never());
             mockUsenet.Verify(c => c.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Once());
@@ -229,26 +230,26 @@ namespace NzbDrone.Core.Test.Download
         }
 
         [Test]
-        public void should_send_download_to_correct_usenet_client()
+        public async Task should_send_download_to_correct_usenet_client()
         {
             var mockTorrent = WithTorrentClient();
             var mockUsenet = WithUsenetClient();
 
-            Subject.DownloadReport(_parseResult);
+            await Subject.DownloadReport(_parseResult);
 
             mockTorrent.Verify(c => c.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Never());
             mockUsenet.Verify(c => c.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Once());
         }
 
         [Test]
-        public void should_send_download_to_correct_torrent_client()
+        public async Task should_send_download_to_correct_torrent_client()
         {
             var mockTorrent = WithTorrentClient();
             var mockUsenet = WithUsenetClient();
 
             _parseResult.Release.DownloadProtocol = DownloadProtocol.Torrent;
 
-            Subject.DownloadReport(_parseResult);
+            await Subject.DownloadReport(_parseResult);
 
             mockTorrent.Verify(c => c.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Once());
             mockUsenet.Verify(c => c.Download(It.IsAny<RemoteBook>(), It.IsAny<IIndexer>()), Times.Never());

src/NzbDrone.Core.Test/HealthCheck/Checks/DownloadClientRemovesCompletedDownloadsCheckFixture.cs

@@ -0,0 +1,78 @@
+using System;
+using Moq;
+using NUnit.Framework;
+using NzbDrone.Core.Download;
+using NzbDrone.Core.Download.Clients;
+using NzbDrone.Core.HealthCheck.Checks;
+using NzbDrone.Core.Localization;
+using NzbDrone.Core.Test.Framework;
+using NzbDrone.Test.Common;
+
+namespace NzbDrone.Core.Test.HealthCheck.Checks
+{
+    [TestFixture]
+    public class DownloadClientRemovesCompletedDownloadsCheckFixture : CoreTest<DownloadClientRemovesCompletedDownloadsCheck>
+    {
+        private DownloadClientInfo _clientStatus;
+        private Mock<IDownloadClient> _downloadClient;
+
+        private static Exception[] DownloadClientExceptions =
+        {
+            new DownloadClientUnavailableException("error"),
+            new DownloadClientAuthenticationException("error"),
+            new DownloadClientException("error")
+        };
+
+        [SetUp]
+        public void Setup()
+        {
+            _clientStatus = new DownloadClientInfo
+            {
+                IsLocalhost = true,
+
+                // SortingMode = null,
+                RemovesCompletedDownloads = true
+            };
+
+            _downloadClient = Mocker.GetMock<IDownloadClient>();
+            _downloadClient.Setup(s => s.Definition)
+                .Returns(new DownloadClientDefinition { Name = "Test" });
+
+            _downloadClient.Setup(s => s.GetStatus())
+                .Returns(_clientStatus);
+
+            Mocker.GetMock<IProvideDownloadClient>()
+                .Setup(s => s.GetDownloadClients(It.IsAny<bool>()))
+                .Returns(new IDownloadClient[] { _downloadClient.Object });
+
+            Mocker.GetMock<ILocalizationService>()
+                .Setup(s => s.GetLocalizedString(It.IsAny<string>()))
+                .Returns("Some Warning Message");
+        }
+
+        [Test]
+        public void should_return_warning_if_removing_completed_downloads_is_enabled()
+        {
+            Subject.Check().ShouldBeWarning();
+        }
+
+        [Test]
+        public void should_return_ok_if_remove_completed_downloads_is_not_enabled()
+        {
+            _clientStatus.RemovesCompletedDownloads = false;
+            Subject.Check().ShouldBeOk();
+        }
+
+        [Test]
+        [TestCaseSource(nameof(DownloadClientExceptions))]
+        public void should_return_ok_if_client_throws_downloadclientexception(Exception ex)
+        {
+            _downloadClient.Setup(s => s.GetStatus())
+                .Throws(ex);
+
+            Subject.Check().ShouldBeOk();
+
+            ExceptionVerification.ExpectedErrors(0);
+        }
+    }
+}

src/NzbDrone.Core.Test/IndexerSearchTests/AuthorSearchServiceFixture.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using Moq;
 using NUnit.Framework;
 using NzbDrone.Core.Books;
@@ -27,11 +28,11 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
 
             Mocker.GetMock<ISearchForReleases>()
                 .Setup(s => s.AuthorSearch(_author.Id, false, true, false))
-                .Returns(new List<DownloadDecision>());
+                .Returns(Task.FromResult(new List<DownloadDecision>()));
 
             Mocker.GetMock<IProcessDownloadDecisions>()
                 .Setup(s => s.ProcessDecisions(It.IsAny<List<DownloadDecision>>()))
-                .Returns(new ProcessedDecisions(new List<DownloadDecision>(), new List<DownloadDecision>(), new List<DownloadDecision>()));
+                .Returns(Task.FromResult(new ProcessedDecisions(new List<DownloadDecision>(), new List<DownloadDecision>(), new List<DownloadDecision>())));
         }
 
         [Test]

src/NzbDrone.Core.Test/IndexerSearchTests/ReleaseSearchServiceFixture.cs

@@ -1,5 +1,6 @@
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -60,13 +61,13 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
 
             _mockIndexer.Setup(v => v.Fetch(It.IsAny<BookSearchCriteria>()))
                 .Callback<BookSearchCriteria>(s => result.Add(s))
-                .Returns(new List<Parser.Model.ReleaseInfo>());
+                .Returns(Task.FromResult<IList<Parser.Model.ReleaseInfo>>(new List<Parser.Model.ReleaseInfo>()));
 
             return result;
         }
 
         [Test]
-        public void Tags_IndexerTags_AuthorNoTags_IndexerNotIncluded()
+        public async Task Tags_IndexerTags_AuthorNoTags_IndexerNotIncluded()
         {
             _mockIndexer.SetupGet(s => s.Definition).Returns(new IndexerDefinition
             {
@@ -76,7 +77,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
 
             var allCriteria = WatchForSearchCriteria();
 
-            Subject.BookSearch(_firstBook, false, true, false);
+            await Subject.BookSearch(_firstBook, false, true, false);
 
             var criteria = allCriteria.OfType<BookSearchCriteria>().ToList();
 
@@ -84,7 +85,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
         }
 
         [Test]
-        public void Tags_IndexerNoTags_AuthorTags_IndexerIncluded()
+        public async Task Tags_IndexerNoTags_AuthorTags_IndexerIncluded()
         {
             _mockIndexer.SetupGet(s => s.Definition).Returns(new IndexerDefinition
             {
@@ -102,7 +103,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
 
             var allCriteria = WatchForSearchCriteria();
 
-            Subject.BookSearch(_firstBook, false, true, false);
+            await Subject.BookSearch(_firstBook, false, true, false);
 
             var criteria = allCriteria.OfType<BookSearchCriteria>().ToList();
 
@@ -110,7 +111,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
         }
 
         [Test]
-        public void Tags_IndexerAndAuthorTagsMatch_IndexerIncluded()
+        public async Task Tags_IndexerAndAuthorTagsMatch_IndexerIncluded()
         {
             _mockIndexer.SetupGet(s => s.Definition).Returns(new IndexerDefinition
             {
@@ -129,7 +130,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
 
             var allCriteria = WatchForSearchCriteria();
 
-            Subject.BookSearch(_firstBook, false, true, false);
+            await Subject.BookSearch(_firstBook, false, true, false);
 
             var criteria = allCriteria.OfType<BookSearchCriteria>().ToList();
 
@@ -137,7 +138,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
         }
 
         [Test]
-        public void Tags_IndexerAndAuthorTagsMismatch_IndexerNotIncluded()
+        public async Task Tags_IndexerAndAuthorTagsMismatch_IndexerNotIncluded()
         {
             _mockIndexer.SetupGet(s => s.Definition).Returns(new IndexerDefinition
             {
@@ -156,7 +157,7 @@ namespace NzbDrone.Core.Test.IndexerSearchTests
 
             var allCriteria = WatchForSearchCriteria();
 
-            Subject.BookSearch(_firstBook, false, true, false);
+            await Subject.BookSearch(_firstBook, false, true, false);
 
             var criteria = allCriteria.OfType<BookSearchCriteria>().ToList();
 

src/NzbDrone.Core.Test/IndexerTests/FileListTests/FileListFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -26,15 +27,15 @@ namespace NzbDrone.Core.Test.IndexerTests.FileListTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_FileList()
+        public async Task should_parse_recent_feed_from_FileList()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/FileList/RecentFeed.json");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(2);
             releases.First().Should().BeOfType<TorrentInfo>();

src/NzbDrone.Core.Test/IndexerTests/GazelleTests/GazelleFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -30,24 +31,24 @@ namespace NzbDrone.Core.Test.IndexerTests.GazelleTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_gazelle()
+        public async Task should_parse_recent_feed_from_gazelle()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/Gazelle/Gazelle.json");
             var indexFeed = ReadAllText(@"Files/Indexers/Gazelle/GazelleIndex.json");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get && v.Url.FullUri.Contains("ajax.php?action=browse"))))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get && v.Url.FullUri.Contains("ajax.php?action=browse"))))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader { ContentType = "application/json" }, recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader { ContentType = "application/json" }, recentFeed)));
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Post && v.Url.FullUri.Contains("ajax.php?action=index"))))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Post && v.Url.FullUri.Contains("ajax.php?action=index"))))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), indexFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), indexFeed)));
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Post && v.Url.FullUri.Contains("login.php"))))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Post && v.Url.FullUri.Contains("login.php"))))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), indexFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), indexFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(4);
 

src/NzbDrone.Core.Test/IndexerTests/IPTorrentsTests/IPTorrentsFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -84,15 +85,15 @@ namespace NzbDrone.Core.Test.IndexerTests.IPTorrentsTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_IPTorrents()
+        public async Task should_parse_recent_feed_from_IPTorrents()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/IPTorrents/IPTorrents.xml");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
             releases.First().Should().BeOfType<TorrentInfo>();

src/NzbDrone.Core.Test/IndexerTests/NewznabTests/NewznabFixture.cs

@@ -2,6 +2,7 @@ using System;
 using System.Linq;
 using System.Net;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -39,15 +40,15 @@ namespace NzbDrone.Core.Test.IndexerTests.NewznabTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_newznab_nzb_su()
+        public async Task should_parse_recent_feed_from_newznab_nzb_su()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/Newznab/newznab_nzb_su.xml");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(100);
 
@@ -83,7 +84,7 @@ namespace NzbDrone.Core.Test.IndexerTests.NewznabTests
         }
 
         [Test]
-        public void should_record_indexer_failure_if_caps_throw()
+        public async Task should_record_indexer_failure_if_caps_throw()
         {
             var request = new HttpRequest("http://my.indexer.com");
             var response = new HttpResponse(request, new HttpHeader(), new byte[0], (HttpStatusCode)429);
@@ -96,7 +97,9 @@ namespace NzbDrone.Core.Test.IndexerTests.NewznabTests
             _caps.MaxPageSize = 30;
             _caps.DefaultPageSize = 25;
 
-            Subject.FetchRecent().Should().BeEmpty();
+            var releases = await Subject.FetchRecent();
+
+            releases.Should().BeEmpty();
 
             Mocker.GetMock<IIndexerStatusService>()
                   .Verify(v => v.RecordFailure(It.IsAny<int>(), TimeSpan.FromMinutes(5.0)), Times.Once());

src/NzbDrone.Core.Test/IndexerTests/NyaaTests/NyaaFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -26,15 +27,15 @@ namespace NzbDrone.Core.Test.IndexerTests.NyaaTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_Nyaa()
+        public async Task should_parse_recent_feed_from_Nyaa()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/Nyaa/Nyaa.xml");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(4);
             releases.First().Should().BeOfType<TorrentInfo>();

src/NzbDrone.Core.Test/IndexerTests/TorrentRssIndexerTests/TestTorrentRssIndexer.cs

@@ -22,7 +22,7 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         {
             var result = new List<ValidationFailure>();
             SetupNLog(); // Enable this to enable trace logging with nlog for debugging purposes
-            Test(result);
+            Test(result).GetAwaiter().GetResult();
             return result;
         }
 

src/NzbDrone.Core.Test/IndexerTests/TorrentRssIndexerTests/TorrentRssIndexerFixture.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -34,17 +35,21 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         {
             var recentFeed = ReadAllText(@"Files/Indexers/" + rssXmlFile);
 
+            Mocker.GetMock<IHttpClient>()
+                .Setup(o => o.ExecuteAsync(It.IsAny<HttpRequest>()))
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
+
             Mocker.GetMock<IHttpClient>()
                 .Setup(o => o.Execute(It.IsAny<HttpRequest>()))
                 .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
         }
 
         [Test]
-        public void should_parse_recent_feed_from_ImmortalSeed()
+        public async Task should_parse_recent_feed_from_ImmortalSeed()
         {
             GivenRecentFeedResponse("TorrentRss/ImmortalSeed.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(50);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -66,11 +71,11 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_Ezrss()
+        public async Task should_parse_recent_feed_from_Ezrss()
         {
             GivenRecentFeedResponse("TorrentRss/Ezrss.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(3);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -92,13 +97,13 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_ShowRSS_info()
+        public async Task should_parse_recent_feed_from_ShowRSS_info()
         {
             Subject.Definition.Settings.As<TorrentRssIndexerSettings>().AllowZeroSize = true;
 
             GivenRecentFeedResponse("TorrentRss/ShowRSS.info.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -120,13 +125,13 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_Doki()
+        public async Task should_parse_recent_feed_from_Doki()
         {
             Subject.Definition.Settings.As<TorrentRssIndexerSettings>().AllowZeroSize = true;
 
             GivenRecentFeedResponse("TorrentRss/Doki.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -148,11 +153,11 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_ExtraTorrents()
+        public async Task should_parse_recent_feed_from_ExtraTorrents()
         {
             GivenRecentFeedResponse("TorrentRss/ExtraTorrents.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -174,11 +179,11 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_LimeTorrents()
+        public async Task should_parse_recent_feed_from_LimeTorrents()
         {
             GivenRecentFeedResponse("TorrentRss/LimeTorrents.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -200,11 +205,11 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_AnimeTosho_without_size()
+        public async Task should_parse_recent_feed_from_AnimeTosho_without_size()
         {
             GivenRecentFeedResponse("TorrentRss/AnimeTosho_NoSize.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(2);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -226,11 +231,11 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_multi_enclosure_from_AnimeTosho()
+        public async Task should_parse_multi_enclosure_from_AnimeTosho()
         {
             GivenRecentFeedResponse("TorrentRss/AnimeTosho_NoSize.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(2);
             releases.Last().Should().BeOfType<TorrentInfo>();
@@ -243,11 +248,11 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_AlphaRatio()
+        public async Task should_parse_recent_feed_from_AlphaRatio()
         {
             GivenRecentFeedResponse("TorrentRss/AlphaRatio.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(2);
             releases.Last().Should().BeOfType<TorrentInfo>();
@@ -260,12 +265,12 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_EveolutionWorld_without_size()
+        public async Task should_parse_recent_feed_from_EveolutionWorld_without_size()
         {
             Subject.Definition.Settings.As<TorrentRssIndexerSettings>().AllowZeroSize = true;
             GivenRecentFeedResponse("TorrentRss/EvolutionWorld.xml");
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(2);
             releases.First().Should().BeOfType<TorrentInfo>();
@@ -287,11 +292,13 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentRssIndexerTests
         }
 
         [Test]
-        public void should_record_indexer_failure_if_unsupported_feed()
+        public async Task should_record_indexer_failure_if_unsupported_feed()
         {
             GivenRecentFeedResponse("TorrentRss/invalid/TorrentDay_NoPubDate.xml");
 
-            Subject.FetchRecent().Should().BeEmpty();
+            var releases = await Subject.FetchRecent();
+
+            releases.Should().BeEmpty();
 
             Mocker.GetMock<IIndexerStatusService>()
                   .Verify(v => v.RecordFailure(It.IsAny<int>(), TimeSpan.Zero), Times.Once());

src/NzbDrone.Core.Test/IndexerTests/TorrentleechTests/TorrentleechFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FluentAssertions;
 using Moq;
 using NUnit.Framework;
@@ -26,15 +27,15 @@ namespace NzbDrone.Core.Test.IndexerTests.TorrentleechTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_Torrentleech()
+        public async Task should_parse_recent_feed_from_Torrentleech()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/Torrentleech/Torrentleech.xml");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
             releases.First().Should().BeOfType<TorrentInfo>();

src/NzbDrone.Core.Test/IndexerTests/TorznabTests/TorznabFixture.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Linq;
 using System.Net.Http;
+using System.Threading.Tasks;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using Moq;
@@ -44,15 +45,15 @@ namespace NzbDrone.Core.Test.IndexerTests.TorznabTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_torznab_hdaccess_net()
+        public async Task should_parse_recent_feed_from_torznab_hdaccess_net()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/Torznab/torznab_hdaccess_net.xml");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
 
@@ -73,15 +74,15 @@ namespace NzbDrone.Core.Test.IndexerTests.TorznabTests
         }
 
         [Test]
-        public void should_parse_recent_feed_from_torznab_tpb()
+        public async Task should_parse_recent_feed_from_torznab_tpb()
         {
             var recentFeed = ReadAllText(@"Files/Indexers/Torznab/torznab_tpb.xml");
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
-            var releases = Subject.FetchRecent();
+            var releases = await Subject.FetchRecent();
 
             releases.Should().HaveCount(5);
 
@@ -140,8 +141,8 @@ namespace NzbDrone.Core.Test.IndexerTests.TorznabTests
             (Subject.Definition.Settings as TorznabSettings).BaseUrl = baseUrl;
 
             Mocker.GetMock<IHttpClient>()
-                .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
             var result = new NzbDroneValidationResult(Subject.Test());
             result.IsValid.Should().BeTrue();
@@ -155,8 +156,8 @@ namespace NzbDrone.Core.Test.IndexerTests.TorznabTests
             var recentFeed = ReadAllText(@"Files/Indexers/Torznab/torznab_tpb.xml");
 
             Mocker.GetMock<IHttpClient>()
-                  .Setup(o => o.Execute(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
+                  .Setup(o => o.ExecuteAsync(It.Is<HttpRequest>(v => v.Method == HttpMethod.Get)))
-                  .Returns<HttpRequest>(r => new HttpResponse(r, new HttpHeader(), recentFeed));
+                  .Returns<HttpRequest>(r => Task.FromResult(new HttpResponse(r, new HttpHeader(), recentFeed)));
 
             (Subject.Definition.Settings as TorznabSettings).ApiPath = apiPath;
 

src/NzbDrone.Core.Test/NotificationTests/NotificationBaseFixture.cs

@@ -64,6 +64,11 @@ namespace NzbDrone.Core.Test.NotificationTests
                 TestLogger.Info("OnRename was called");
             }
 
+            public override void OnAuthorAdded(Author author)
+            {
+                TestLogger.Info("OnAuthorAdded was called");
+            }
+
             public override void OnAuthorDelete(AuthorDeleteMessage message)
             {
                 TestLogger.Info("OnAuthorDelete was called");
@@ -138,6 +143,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnUpgrade.Should().BeTrue();
             notification.SupportsOnRename.Should().BeTrue();
             notification.SupportsOnHealthIssue.Should().BeTrue();
+            notification.SupportsOnAuthorAdded.Should().BeTrue();
             notification.SupportsOnAuthorDelete.Should().BeTrue();
             notification.SupportsOnBookDelete.Should().BeTrue();
             notification.SupportsOnBookFileDelete.Should().BeTrue();
@@ -157,6 +163,7 @@ namespace NzbDrone.Core.Test.NotificationTests
             notification.SupportsOnReleaseImport.Should().BeFalse();
             notification.SupportsOnUpgrade.Should().BeFalse();
             notification.SupportsOnRename.Should().BeFalse();
+            notification.SupportsOnAuthorAdded.Should().BeFalse();
             notification.SupportsOnAuthorDelete.Should().BeFalse();
             notification.SupportsOnBookDelete.Should().BeFalse();
             notification.SupportsOnBookFileDelete.Should().BeFalse();

src/NzbDrone.Core/Blocklisting/BlocklistService.cs

@@ -122,7 +122,7 @@ namespace NzbDrone.Core.Blocklisting
         {
             if (release.InfoHash.IsNotNullOrWhiteSpace())
             {
-                return release.InfoHash.Equals(item.TorrentInfoHash);
+                return release.InfoHash.Equals(item.TorrentInfoHash, StringComparison.InvariantCultureIgnoreCase);
             }
 
             return HasSameIndexer(item, release.Indexer);

src/NzbDrone.Core/Books/Calibre/CalibreProxy.cs

@@ -275,7 +275,7 @@ namespace NzbDrone.Core.Books.Calibre
 
             var updatedPath = GetOriginalFormat(updated.Formats);
 
-            if (updatedPath != file.Path)
+            if (updatedPath != null && updatedPath != file.Path)
             {
                 _rootFolderWatchingService.ReportFileSystemChangeBeginning(updatedPath);
                 file.Path = updatedPath;

src/NzbDrone.Core/Datastore/Migration/038_add_on_author_add_to_notifications.cs

@@ -0,0 +1,14 @@
+using FluentMigrator;
+using NzbDrone.Core.Datastore.Migration.Framework;
+
+namespace NzbDrone.Core.Datastore.Migration
+{
+    [Migration(038)]
+    public class add_on_author_added_to_notifications : NzbDroneMigrationBase
+    {
+        protected override void MainDbUpgrade()
+        {
+            Alter.Table("Notifications").AddColumn("OnAuthorAdded").AsBoolean().WithDefaultValue(false);
+        }
+    }
+}

src/NzbDrone.Core/Datastore/TableMapping.cs

@@ -85,6 +85,7 @@ namespace NzbDrone.Core.Datastore
                   .Ignore(i => i.SupportsOnReleaseImport)
                   .Ignore(i => i.SupportsOnUpgrade)
                   .Ignore(i => i.SupportsOnRename)
+                  .Ignore(i => i.SupportsOnAuthorAdded)
                   .Ignore(i => i.SupportsOnAuthorDelete)
                   .Ignore(i => i.SupportsOnBookDelete)
                   .Ignore(i => i.SupportsOnBookFileDelete)

src/NzbDrone.Core/DecisionEngine/Specifications/RssSync/IndexerTagSpecification.cs

@@ -1,6 +1,7 @@
 using System.Linq;
 using NLog;
 using NzbDrone.Common.Extensions;
+using NzbDrone.Core.Datastore;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.IndexerSearch.Definitions;
 using NzbDrone.Core.Parser.Model;
@@ -10,12 +11,12 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
     public class IndexerTagSpecification : IDecisionEngineSpecification
     {
         private readonly Logger _logger;
-        private readonly IIndexerRepository _indexerRepository;
+        private readonly IIndexerFactory _indexerFactory;
 
-        public IndexerTagSpecification(Logger logger, IIndexerRepository indexerRepository)
+        public IndexerTagSpecification(Logger logger, IIndexerFactory indexerFactory)
         {
             _logger = logger;
-            _indexerRepository = indexerRepository;
+            _indexerFactory = indexerFactory;
         }
 
         public SpecificationPriority Priority => SpecificationPriority.Default;
@@ -23,8 +24,24 @@ namespace NzbDrone.Core.DecisionEngine.Specifications.RssSync
 
         public virtual Decision IsSatisfiedBy(RemoteBook subject, SearchCriteriaBase searchCriteria)
         {
-            // If indexer has tags, check that at least one of them is present on the author
+            if (subject.Release == null || subject.Author?.Tags == null || subject.Release.IndexerId == 0)
-            var indexerTags = _indexerRepository.Get(subject.Release.IndexerId).Tags;
+            {
+                return Decision.Accept();
+            }
+
+            IndexerDefinition indexer;
+            try
+            {
+                indexer = _indexerFactory.Get(subject.Release.IndexerId);
+            }
+            catch (ModelNotFoundException)
+            {
+                _logger.Debug("Indexer with id {0} does not exist, skipping indexer tags check", subject.Release.IndexerId);
+                return Decision.Accept();
+            }
+
+            // If indexer has tags, check that at least one of them is present on the series
+            var indexerTags = indexer.Tags;
 
             if (indexerTags.Any() && indexerTags.Intersect(subject.Author.Tags).Empty())
             {

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

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Disk;
@@ -32,7 +33,7 @@ namespace NzbDrone.Core.Download.Clients.Pneumatic
 
         public override DownloadProtocol Protocol => DownloadProtocol.Usenet;
 
-        public override string Download(RemoteBook remoteBook, IIndexer indexer)
+        public override async Task<string> Download(RemoteBook remoteBook, IIndexer indexer)
         {
             var url = remoteBook.Release.DownloadUrl;
             var title = remoteBook.Release.Title;
@@ -48,7 +49,7 @@ namespace NzbDrone.Core.Download.Clients.Pneumatic
             var nzbFile = Path.Combine(Settings.NzbFolder, title + ".nzb");
 
             _logger.Debug("Downloading NZB from: {0} to: {1}", url, nzbFile);
-            _httpClient.DownloadFile(url, nzbFile);
+            await _httpClient.DownloadFileAsync(url, nzbFile);
 
             _logger.Debug("NZB Download succeeded, saved to: {0}", nzbFile);
 

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

@@ -304,13 +304,13 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                         break;
                 }
 
-                if (version >= new Version("2.6.1"))
+                if (version >= new Version("2.6.1") && item.Status == DownloadItemStatus.Completed)
                 {
                     if (torrent.ContentPath != torrent.SavePath)
                     {
                         item.OutputPath = _remotePathMappingService.RemapRemoteToLocal(Settings.Host, new OsPath(torrent.ContentPath));
                     }
-                    else if (item.Status == DownloadItemStatus.Completed)
+                    else
                     {
                         item.Status = DownloadItemStatus.Warning;
                         item.Message = "Unable to Import. Path matches client base download directory, it's possible 'Keep top-level folder' is disabled for this torrent or 'Torrent Content Layout' is NOT set to 'Original' or 'Create Subfolder'?";
@@ -386,10 +386,13 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
                 }
             }
 
+            var minimumRetention = 60 * 24 * 14;
+
             return new DownloadClientInfo
             {
                 IsLocalhost = Settings.Host == "127.0.0.1" || Settings.Host == "localhost",
-                OutputRootFolders = new List<OsPath> { _remotePathMappingService.RemapRemoteToLocal(Settings.Host, destDir) }
+                OutputRootFolders = new List<OsPath> { _remotePathMappingService.RemapRemoteToLocal(Settings.Host, destDir) },
+                RemovesCompletedDownloads = (config.MaxRatioEnabled || (config.MaxSeedingTimeEnabled && config.MaxSeedingTime < minimumRetention)) && (config.MaxRatioAction == QBittorrentMaxRatioAction.Remove || config.MaxRatioAction == QBittorrentMaxRatioAction.DeleteFiles)
             };
         }
 
@@ -628,11 +631,11 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
 
             if (torrent.SeedingTimeLimit >= 0)
             {
-                seedingTimeLimit = torrent.SeedingTimeLimit;
+                seedingTimeLimit = torrent.SeedingTimeLimit * 60;
             }
             else if (torrent.SeedingTimeLimit == -2 && config.MaxSeedingTimeEnabled)
             {
-                seedingTimeLimit = config.MaxSeedingTime;
+                seedingTimeLimit = config.MaxSeedingTime * 60;
             }
             else
             {

src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentTorrent.cs

@@ -33,7 +33,7 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
         public float RatioLimit { get; set; } = -2;
 
         [JsonProperty(PropertyName = "seeding_time")]
-        public long? SeedingTime { get; set; } // Torrent seeding time (not provided by the list api)
+        public long? SeedingTime { get; set; } // Torrent seeding time (in seconds, not provided by the list api)
 
         [JsonProperty(PropertyName = "seeding_time_limit")] // Per torrent seeding time limit (-2 = use global, -1 = unlimited)
         public long SeedingTimeLimit { get; set; } = -2;
@@ -47,7 +47,7 @@ namespace NzbDrone.Core.Download.Clients.QBittorrent
         public string SavePath { get; set; }
 
         [JsonProperty(PropertyName = "seeding_time")]
-        public long SeedingTime { get; set; } // Torrent seeding time
+        public long SeedingTime { get; set; } // Torrent seeding time (in seconds)
     }
 
     public class QBittorrentTorrentFile

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

@@ -263,6 +263,17 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
                 status.OutputRootFolders = new List<OsPath> { _remotePathMappingService.RemapRemoteToLocal(Settings.Host, category.FullPath) };
             }
 
+            if (config.Misc.history_retention.IsNotNullOrWhiteSpace() && config.Misc.history_retention.EndsWith("d"))
+            {
+                int.TryParse(config.Misc.history_retention.AsSpan(0, config.Misc.history_retention.Length - 1),
+                    out var daysRetention);
+                status.RemovesCompletedDownloads = daysRetention < 14;
+            }
+            else
+            {
+                status.RemovesCompletedDownloads = config.Misc.history_retention != "0";
+            }
+
             return status;
         }
 

src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdCategory.cs

@@ -29,6 +29,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
         public string[] date_categories { get; set; }
         public bool enable_date_sorting { get; set; }
         public bool pre_check { get; set; }
+        public string history_retention { get; set; }
     }
 
     public class SabnzbdCategory

src/NzbDrone.Core/Download/DownloadClientBase.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Disk;
@@ -58,7 +59,7 @@ namespace NzbDrone.Core.Download
             get;
         }
 
-        public abstract string Download(RemoteBook remoteBook, IIndexer indexer);
+        public abstract Task<string> Download(RemoteBook remoteBook, IIndexer indexer);
         public abstract IEnumerable<DownloadClientItem> GetItems();
 
         public virtual DownloadClientItem GetImportItem(DownloadClientItem item, DownloadClientItem previousImportAttempt)

src/NzbDrone.Core/Download/DownloadClientInfo.cs

@@ -11,6 +11,7 @@ namespace NzbDrone.Core.Download
         }
 
         public bool IsLocalhost { get; set; }
+        public bool RemovesCompletedDownloads { get; set; }
         public List<OsPath> OutputRootFolders { get; set; }
     }
 }

src/NzbDrone.Core/Download/DownloadService.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.EnsureThat;
 using NzbDrone.Common.Extensions;
@@ -16,7 +17,7 @@ namespace NzbDrone.Core.Download
 {
     public interface IDownloadService
     {
-        void DownloadReport(RemoteBook remoteBook);
+        Task DownloadReport(RemoteBook remoteBook);
     }
 
     public class DownloadService : IDownloadService
@@ -49,15 +50,23 @@ namespace NzbDrone.Core.Download
             _logger = logger;
         }
 
-        public void DownloadReport(RemoteBook remoteBook)
+        public async Task DownloadReport(RemoteBook remoteBook)
+        {
+            var filterBlockedClients = remoteBook.Release.PendingReleaseReason == PendingReleaseReason.DownloadClientUnavailable;
+
+            var tags = remoteBook.Author?.Tags;
+
+            var downloadClient = _downloadClientProvider.GetDownloadClient(remoteBook.Release.DownloadProtocol, remoteBook.Release.IndexerId, filterBlockedClients, tags);
+
+            await DownloadReport(remoteBook, downloadClient);
+        }
+
+        private async Task DownloadReport(RemoteBook remoteBook, IDownloadClient downloadClient)
         {
             Ensure.That(remoteBook.Author, () => remoteBook.Author).IsNotNull();
             Ensure.That(remoteBook.Books, () => remoteBook.Books).HasItems();
 
             var downloadTitle = remoteBook.Release.Title;
-            var filterBlockedClients = remoteBook.Release.PendingReleaseReason == PendingReleaseReason.DownloadClientUnavailable;
-            var tags = remoteBook.Author?.Tags;
-            var downloadClient = _downloadClientProvider.GetDownloadClient(remoteBook.Release.DownloadProtocol, remoteBook.Release.IndexerId, filterBlockedClients, tags);
 
             if (downloadClient == null)
             {
@@ -71,7 +80,7 @@ namespace NzbDrone.Core.Download
             if (remoteBook.Release.DownloadUrl.IsNotNullOrWhiteSpace() && !remoteBook.Release.DownloadUrl.StartsWith("magnet:"))
             {
                 var url = new HttpUri(remoteBook.Release.DownloadUrl);
-                _rateLimitService.WaitAndPulse(url.Host, TimeSpan.FromSeconds(2));
+                await _rateLimitService.WaitAndPulseAsync(url.Host, TimeSpan.FromSeconds(2));
             }
 
             IIndexer indexer = null;
@@ -84,7 +93,7 @@ namespace NzbDrone.Core.Download
             string downloadClientId;
             try
             {
-                downloadClientId = downloadClient.Download(remoteBook, indexer);
+                downloadClientId = await downloadClient.Download(remoteBook, indexer);
                 _downloadClientStatusService.RecordSuccess(downloadClient.Definition.Id);
                 _indexerStatusService.RecordSuccess(remoteBook.Release.IndexerId);
             }
@@ -100,8 +109,7 @@ namespace NzbDrone.Core.Download
             }
             catch (ReleaseDownloadException ex)
             {
-                var http429 = ex.InnerException as TooManyRequestsException;
+                if (ex.InnerException is TooManyRequestsException http429)
-                if (http429 != null)
                 {
                     _indexerStatusService.RecordFailure(remoteBook.Release.IndexerId, http429.RetryAfter);
                 }

src/NzbDrone.Core/Download/IDownloadClient.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using NzbDrone.Core.Indexers;
 using NzbDrone.Core.Parser.Model;
 using NzbDrone.Core.ThingiProvider;
@@ -8,7 +9,7 @@ namespace NzbDrone.Core.Download
     public interface IDownloadClient : IProvider
     {
         DownloadProtocol Protocol { get; }
-        string Download(RemoteBook remoteBook, IIndexer indexer);
+        Task<string> Download(RemoteBook remoteBook, IIndexer indexer);
         IEnumerable<DownloadClientItem> GetItems();
         DownloadClientItem GetImportItem(DownloadClientItem item, DownloadClientItem previousImportAttempt);
         void RemoveItem(DownloadClientItem item, bool deleteData);

src/NzbDrone.Core/Download/ProcessDownloadDecisions.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Core.DecisionEngine;
 using NzbDrone.Core.Download.Clients;
@@ -12,7 +13,7 @@ namespace NzbDrone.Core.Download
 {
     public interface IProcessDownloadDecisions
     {
-        ProcessedDecisions ProcessDecisions(List<DownloadDecision> decisions);
+        Task<ProcessedDecisions> ProcessDecisions(List<DownloadDecision> decisions);
     }
 
     public class ProcessDownloadDecisions : IProcessDownloadDecisions
@@ -33,7 +34,7 @@ namespace NzbDrone.Core.Download
             _logger = logger;
         }
 
-        public ProcessedDecisions ProcessDecisions(List<DownloadDecision> decisions)
+        public async Task<ProcessedDecisions> ProcessDecisions(List<DownloadDecision> decisions)
         {
             var qualifiedReports = GetQualifiedReports(decisions);
             var prioritizedDecisions = _prioritizeDownloadDecision.PrioritizeDecisions(qualifiedReports);
@@ -75,7 +76,7 @@ namespace NzbDrone.Core.Download
                 try
                 {
                     _logger.Trace("Grabbing from Indexer {0} at priority {1}.", remoteBook.Release.Indexer, remoteBook.Release.IndexerPriority);
-                    _downloadService.DownloadReport(remoteBook);
+                    await _downloadService.DownloadReport(remoteBook);
                     grabbed.Add(report);
                 }
                 catch (ReleaseUnavailableException)

src/NzbDrone.Core/Download/TorrentClientBase.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Net;
+using System.Threading.Tasks;
 using MonoTorrent;
 using NLog;
 using NzbDrone.Common.Disk;
@@ -41,7 +42,7 @@ namespace NzbDrone.Core.Download
         protected abstract string AddFromMagnetLink(RemoteBook remoteBook, string hash, string magnetLink);
         protected abstract string AddFromTorrentFile(RemoteBook remoteBook, string hash, string filename, byte[] fileContent);
 
-        public override string Download(RemoteBook remoteBook, IIndexer indexer)
+        public override async Task<string> Download(RemoteBook remoteBook, IIndexer indexer)
         {
             var torrentInfo = remoteBook.Release as TorrentInfo;
 
@@ -68,7 +69,7 @@ namespace NzbDrone.Core.Download
                 {
                     try
                     {
-                        return DownloadFromWebUrl(remoteBook, indexer, torrentUrl);
+                        return await DownloadFromWebUrl(remoteBook, indexer, torrentUrl);
                     }
                     catch (Exception ex)
                     {
@@ -114,14 +115,14 @@ namespace NzbDrone.Core.Download
 
                 if (torrentUrl.IsNotNullOrWhiteSpace())
                 {
-                    return DownloadFromWebUrl(remoteBook, indexer, torrentUrl);
+                    return await DownloadFromWebUrl(remoteBook, indexer, torrentUrl);
                 }
             }
 
             return null;
         }
 
-        private string DownloadFromWebUrl(RemoteBook remoteBook, IIndexer indexer, string torrentUrl)
+        private async Task<string> DownloadFromWebUrl(RemoteBook remoteBook, IIndexer indexer, string torrentUrl)
         {
             byte[] torrentFile = null;
 
@@ -132,7 +133,7 @@ namespace NzbDrone.Core.Download
                 request.Headers.Accept = "application/x-bittorrent";
                 request.AllowAutoRedirect = false;
 
-                var response = _httpClient.Get(request);
+                var response = await _httpClient.GetAsync(request);
 
                 if (response.StatusCode == HttpStatusCode.MovedPermanently ||
                     response.StatusCode == HttpStatusCode.Found ||
@@ -151,7 +152,7 @@ namespace NzbDrone.Core.Download
 
                         request.Url += new HttpUri(locationHeader);
 
-                        return DownloadFromWebUrl(remoteBook, indexer, request.Url.ToString());
+                        return await DownloadFromWebUrl(remoteBook, indexer, request.Url.ToString());
                     }
 
                     throw new WebException("Remote website tried to redirect without providing a location.");

src/NzbDrone.Core/Download/UsenetClientBase.cs

@@ -1,4 +1,5 @@
 using System.Net;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Disk;
 using NzbDrone.Common.Http;
@@ -34,7 +35,7 @@ namespace NzbDrone.Core.Download
 
         protected abstract string AddFromNzbFile(RemoteBook remoteBook, string filename, byte[] fileContent);
 
-        public override string Download(RemoteBook remoteBook, IIndexer indexer)
+        public override async Task<string> Download(RemoteBook remoteBook, IIndexer indexer)
         {
             var url = remoteBook.Release.DownloadUrl;
             var filename = FileNameBuilder.CleanFileName(remoteBook.Release.Title) + ".nzb";
@@ -46,7 +47,9 @@ namespace NzbDrone.Core.Download
                 var request = indexer?.GetDownloadRequest(url) ?? new HttpRequest(url);
                 request.RateLimitKey = remoteBook?.Release?.IndexerId.ToString();
 
-                nzbData = _httpClient.Get(request).ResponseData;
+                var response = await _httpClient.GetAsync(request);
+
+                nzbData = response.ResponseData;
 
                 _logger.Debug("Downloaded nzb for release '{0}' finished ({1} bytes from {2})", remoteBook.Release.Title, nzbData.Length, url);
             }

src/NzbDrone.Core/Extras/Metadata/MetadataService.cs

@@ -346,6 +346,7 @@ namespace NzbDrone.Core.Extras.Metadata
         private void DownloadImage(Author author, ImageFileResult image)
         {
             var fullPath = Path.Combine(author.Path, image.RelativePath);
+            var downloaded = true;
 
             try
             {
@@ -353,12 +354,19 @@ namespace NzbDrone.Core.Extras.Metadata
                 {
                     _httpClient.DownloadFile(image.Url, fullPath);
                 }
-                else
+                else if (_diskProvider.FileExists(image.Url))
                 {
                     _diskProvider.CopyFile(image.Url, fullPath);
                 }
+                else
+                {
+                    downloaded = false;
+                }
 
-                _mediaFileAttributeService.SetFilePermissions(fullPath);
+                if (downloaded)
+                {
+                    _mediaFileAttributeService.SetFilePermissions(fullPath);
+                }
             }
             catch (WebException ex)
             {

src/NzbDrone.Core/HealthCheck/Checks/DownloadClientRemovesCompletedDownloadsCheck.cs

@@ -0,0 +1,64 @@
+using System;
+using NLog;
+using NzbDrone.Core.Datastore.Events;
+using NzbDrone.Core.Download;
+using NzbDrone.Core.Download.Clients;
+using NzbDrone.Core.Localization;
+using NzbDrone.Core.RemotePathMappings;
+using NzbDrone.Core.RootFolders;
+using NzbDrone.Core.ThingiProvider.Events;
+
+namespace NzbDrone.Core.HealthCheck.Checks
+{
+    [CheckOn(typeof(ProviderUpdatedEvent<IDownloadClient>))]
+    [CheckOn(typeof(ProviderDeletedEvent<IDownloadClient>))]
+    [CheckOn(typeof(ModelEvent<RootFolder>))]
+    [CheckOn(typeof(ModelEvent<RemotePathMapping>))]
+
+    public class DownloadClientRemovesCompletedDownloadsCheck : HealthCheckBase, IProvideHealthCheck
+    {
+        private readonly IProvideDownloadClient _downloadClientProvider;
+        private readonly Logger _logger;
+
+        public DownloadClientRemovesCompletedDownloadsCheck(IProvideDownloadClient downloadClientProvider,
+                                          Logger logger,
+                                          ILocalizationService localizationService)
+            : base(localizationService)
+        {
+            _downloadClientProvider = downloadClientProvider;
+            _logger = logger;
+        }
+
+        public override HealthCheck Check()
+        {
+            var clients = _downloadClientProvider.GetDownloadClients(true);
+
+            foreach (var client in clients)
+            {
+                try
+                {
+                    var clientName = client.Definition.Name;
+                    var status = client.GetStatus();
+
+                    if (status.RemovesCompletedDownloads)
+                    {
+                        return new HealthCheck(GetType(),
+                            HealthCheckResult.Warning,
+                            string.Format(_localizationService.GetLocalizedString("DownloadClientRemovesCompletedDownloadsHealthCheckMessage"), clientName, "Readarr"),
+                            "#download-client-removes-completed-downloads");
+                    }
+                }
+                catch (DownloadClientException ex)
+                {
+                    _logger.Debug(ex, "Unable to communicate with {0}", client.Definition.Name);
+                }
+                catch (Exception ex)
+                {
+                    _logger.Error(ex, "Unknown error occurred in DownloadClientHistoryRetentionCheck HealthCheck");
+                }
+            }
+
+            return new HealthCheck(GetType());
+        }
+    }
+}

src/NzbDrone.Core/Housekeeping/Housekeepers/FixMultipleMonitoredEditions.cs

@@ -0,0 +1,45 @@
+using Dapper;
+using NzbDrone.Core.Datastore;
+
+namespace NzbDrone.Core.Housekeeping.Housekeepers
+{
+    public class FixMultipleMonitoredEditions : IHousekeepingTask
+    {
+        private readonly IMainDatabase _database;
+
+        public FixMultipleMonitoredEditions(IMainDatabase database)
+        {
+            _database = database;
+        }
+
+        public void Clean()
+        {
+            using var mapper = _database.OpenConnection();
+
+            if (_database.DatabaseType == DatabaseType.PostgreSQL)
+            {
+                mapper.Execute(@"UPDATE ""Editions""
+                                SET ""Monitored"" = true
+                                WHERE ""Id"" IN (
+                                    SELECT MIN(""Id"")
+                                    FROM ""Editions""
+                                    WHERE ""Monitored"" = true
+                                    GROUP BY ""BookId""
+                                    HAVING COUNT(""BookId"") > 1
+                                )");
+            }
+            else
+            {
+                mapper.Execute(@"UPDATE ""Editions""
+                                SET ""Monitored"" = 0
+                                WHERE ""Id"" IN (
+                                    SELECT MIN(""Id"")
+                                    FROM ""Editions""
+                                    WHERE ""Monitored"" = 1
+                                    GROUP BY ""BookId""
+                                    HAVING COUNT(""BookId"") > 1
+                                )");
+            }
+        }
+    }
+}

src/NzbDrone.Core/IndexerSearch/AuthorSearchService.cs

@@ -22,8 +22,8 @@ namespace NzbDrone.Core.IndexerSearch
 
         public void Execute(AuthorSearchCommand message)
         {
-            var decisions = _releaseSearchService.AuthorSearch(message.AuthorId, false, message.Trigger == CommandTrigger.Manual, false);
+            var decisions = _releaseSearchService.AuthorSearch(message.AuthorId, false, message.Trigger == CommandTrigger.Manual, false).GetAwaiter().GetResult();
-            var processed = _processDownloadDecisions.ProcessDecisions(decisions);
+            var processed = _processDownloadDecisions.ProcessDecisions(decisions).GetAwaiter().GetResult();
 
             _logger.ProgressInfo("Author search completed. {0} reports downloaded.", processed.Grabbed.Count);
         }

src/NzbDrone.Core/IndexerSearch/BookSearchService.cs

@@ -2,11 +2,11 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Linq.Expressions;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Instrumentation.Extensions;
 using NzbDrone.Core.Books;
 using NzbDrone.Core.Datastore;
-using NzbDrone.Core.DecisionEngine;
 using NzbDrone.Core.Download;
 using NzbDrone.Core.Messaging.Commands;
 using NzbDrone.Core.Queue;
@@ -39,16 +39,15 @@ namespace NzbDrone.Core.IndexerSearch
             _logger = logger;
         }
 
-        private void SearchForMissingBooks(List<Book> books, bool userInvokedSearch)
+        private async Task SearchForMissingBooks(List<Book> books, bool userInvokedSearch)
         {
             _logger.ProgressInfo("Performing missing search for {0} books", books.Count);
             var downloadedCount = 0;
 
             foreach (var book in books)
             {
-                List<DownloadDecision> decisions;
+                var decisions = await _releaseSearchService.BookSearch(book.Id, false, userInvokedSearch, false);
-                decisions = _releaseSearchService.BookSearch(book.Id, false, userInvokedSearch, false);
+                var processed = await _processDownloadDecisions.ProcessDecisions(decisions);
-                var processed = _processDownloadDecisions.ProcessDecisions(decisions);
 
                 downloadedCount += processed.Grabbed.Count;
             }
@@ -60,9 +59,8 @@ namespace NzbDrone.Core.IndexerSearch
         {
             foreach (var bookId in message.BookIds)
             {
-                var decisions =
+                var decisions = _releaseSearchService.BookSearch(bookId, false, message.Trigger == CommandTrigger.Manual, false).GetAwaiter().GetResult();
-                    _releaseSearchService.BookSearch(bookId, false, message.Trigger == CommandTrigger.Manual, false);
+                var processed = _processDownloadDecisions.ProcessDecisions(decisions).GetAwaiter().GetResult();
-                var processed = _processDownloadDecisions.ProcessDecisions(decisions);
 
                 _logger.ProgressInfo("Book search completed. {0} reports downloaded.", processed.Grabbed.Count);
             }
@@ -106,7 +104,7 @@ namespace NzbDrone.Core.IndexerSearch
             var queue = _queueService.GetQueue().Where(q => q.Book != null).Select(q => q.Book.Id);
             var missing = books.Where(e => !queue.Contains(e.Id)).ToList();
 
-            SearchForMissingBooks(missing, message.Trigger == CommandTrigger.Manual);
+            SearchForMissingBooks(missing, message.Trigger == CommandTrigger.Manual).GetAwaiter().GetResult();
         }
 
         public void Execute(CutoffUnmetBookSearchCommand message)
@@ -132,7 +130,7 @@ namespace NzbDrone.Core.IndexerSearch
             var queue = _queueService.GetQueue().Where(q => q.Book != null).Select(q => q.Book.Id);
             var missing = books.Where(e => !queue.Contains(e.Id)).ToList();
 
-            SearchForMissingBooks(missing, message.Trigger == CommandTrigger.Manual);
+            SearchForMissingBooks(missing, message.Trigger == CommandTrigger.Manual).GetAwaiter().GetResult();
         }
     }
 }

src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs

@@ -5,7 +5,6 @@ using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Instrumentation.Extensions;
-using NzbDrone.Common.TPL;
 using NzbDrone.Core.Books;
 using NzbDrone.Core.DecisionEngine;
 using NzbDrone.Core.Indexers;
@@ -16,8 +15,8 @@ namespace NzbDrone.Core.IndexerSearch
 {
     public interface ISearchForReleases
     {
-        List<DownloadDecision> BookSearch(int bookId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch);
+        Task<List<DownloadDecision>> BookSearch(int bookId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch);
-        List<DownloadDecision> AuthorSearch(int authorId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch);
+        Task<List<DownloadDecision>> AuthorSearch(int authorId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch);
     }
 
     public class ReleaseSearchService : ISearchForReleases
@@ -41,31 +40,31 @@ namespace NzbDrone.Core.IndexerSearch
             _logger = logger;
         }
 
-        public List<DownloadDecision> BookSearch(int bookId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
+        public async Task<List<DownloadDecision>> BookSearch(int bookId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
         {
             var downloadDecisions = new List<DownloadDecision>();
 
             var book = _bookService.GetBook(bookId);
 
-            var decisions = BookSearch(book, missingOnly, userInvokedSearch, interactiveSearch);
+            var decisions = await BookSearch(book, missingOnly, userInvokedSearch, interactiveSearch);
             downloadDecisions.AddRange(decisions);
 
             return DeDupeDecisions(downloadDecisions);
         }
 
-        public List<DownloadDecision> AuthorSearch(int authorId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
+        public async Task<List<DownloadDecision>> AuthorSearch(int authorId, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
         {
             var downloadDecisions = new List<DownloadDecision>();
 
             var author = _authorService.GetAuthor(authorId);
 
-            var decisions = AuthorSearch(author, missingOnly, userInvokedSearch, interactiveSearch);
+            var decisions = await AuthorSearch(author, missingOnly, userInvokedSearch, interactiveSearch);
             downloadDecisions.AddRange(decisions);
 
             return DeDupeDecisions(downloadDecisions);
         }
 
-        public List<DownloadDecision> AuthorSearch(Author author, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
+        public async Task<List<DownloadDecision>> AuthorSearch(Author author, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
         {
             var searchSpec = Get<AuthorSearchCriteria>(author, userInvokedSearch, interactiveSearch);
             var books = _bookService.GetBooksByAuthor(author.Id);
@@ -74,10 +73,10 @@ namespace NzbDrone.Core.IndexerSearch
 
             searchSpec.Books = books;
 
-            return Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec);
+            return await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec);
         }
 
-        public List<DownloadDecision> BookSearch(Book book, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
+        public async Task<List<DownloadDecision>> BookSearch(Book book, bool missingOnly, bool userInvokedSearch, bool interactiveSearch)
         {
             var author = _authorService.GetAuthor(book.AuthorId);
 
@@ -91,7 +90,7 @@ namespace NzbDrone.Core.IndexerSearch
                 searchSpec.BookYear = book.ReleaseDate.Value.Year;
             }
 
-            return Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec);
+            return await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec);
         }
 
         private TSpec Get<TSpec>(Author author, List<Book> books, bool userInvokedSearch, bool interactiveSearch)
@@ -118,7 +117,7 @@ namespace NzbDrone.Core.IndexerSearch
             return spec;
         }
 
-        private List<DownloadDecision> Dispatch(Func<IIndexer, IEnumerable<ReleaseInfo>> searchAction, SearchCriteriaBase criteriaBase)
+        private async Task<List<DownloadDecision>> Dispatch(Func<IIndexer, Task<IList<ReleaseInfo>>> searchAction, SearchCriteriaBase criteriaBase)
         {
             var indexers = criteriaBase.InteractiveSearch ?
                 _indexerFactory.InteractiveSearchEnabled() :
@@ -127,42 +126,33 @@ namespace NzbDrone.Core.IndexerSearch
             // Filter indexers to untagged indexers and indexers with intersecting tags
             indexers = indexers.Where(i => i.Definition.Tags.Empty() || i.Definition.Tags.Intersect(criteriaBase.Author.Tags).Any()).ToList();
 
-            var reports = new List<ReleaseInfo>();
-
             _logger.ProgressInfo("Searching indexers for {0}. {1} active indexers", criteriaBase, indexers.Count);
 
-            var taskList = new List<Task>();
+            var tasks = indexers.Select(indexer => DispatchIndexer(searchAction, indexer, criteriaBase));
-            var taskFactory = new TaskFactory(TaskCreationOptions.LongRunning, TaskContinuationOptions.None);
 
-            foreach (var indexer in indexers)
+            var batch = await Task.WhenAll(tasks);
-            {
-                var indexerLocal = indexer;
 
-                taskList.Add(taskFactory.StartNew(() =>
+            var reports = batch.SelectMany(x => x).ToList();
-                {
-                    try
-                    {
-                        var indexerReports = searchAction(indexerLocal);
-
-                        lock (reports)
-                        {
-                            reports.AddRange(indexerReports);
-                        }
-                    }
-                    catch (Exception e)
-                    {
-                        _logger.Error(e, "Error while searching for {0}", criteriaBase);
-                    }
-                }).LogExceptions());
-            }
-
-            Task.WaitAll(taskList.ToArray());
 
             _logger.Debug("Total of {0} reports were found for {1} from {2} indexers", reports.Count, criteriaBase, indexers.Count);
 
             return _makeDownloadDecision.GetSearchDecision(reports, criteriaBase).ToList();
         }
 
+        private async Task<IList<ReleaseInfo>> DispatchIndexer(Func<IIndexer, Task<IList<ReleaseInfo>>> searchAction, IIndexer indexer, SearchCriteriaBase criteriaBase)
+        {
+            try
+            {
+                return await searchAction(indexer);
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex, "Error while searching for {0}", criteriaBase);
+            }
+
+            return Array.Empty<ReleaseInfo>();
+        }
+
         private List<DownloadDecision> DeDupeDecisions(List<DownloadDecision> decisions)
         {
             // De-dupe reports by guid so duplicate results aren't returned. Pick the one with the least rejections and higher indexer priority.

src/NzbDrone.Core/Indexers/FetchAndParseRssService.cs

@@ -3,13 +3,12 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Threading.Tasks;
 using NLog;
-using NzbDrone.Common.TPL;
 using NzbDrone.Core.Parser.Model;
 namespace NzbDrone.Core.Indexers
 {
     public interface IFetchAndParseRss
     {
-        List<ReleaseInfo> Fetch();
+        Task<List<ReleaseInfo>> Fetch();
     }
 
     public class FetchAndParseRssService : IFetchAndParseRss
@@ -23,54 +22,42 @@ namespace NzbDrone.Core.Indexers
             _logger = logger;
         }
 
-        public List<ReleaseInfo> Fetch()
+        public async Task<List<ReleaseInfo>> Fetch()
         {
-            var result = new List<ReleaseInfo>();
-
             var indexers = _indexerFactory.RssEnabled();
 
             if (!indexers.Any())
             {
                 _logger.Warn("No available indexers. check your configuration.");
-                return result;
+
+                return new List<ReleaseInfo>();
             }
 
             _logger.Debug("Available indexers {0}", indexers.Count);
 
-            var taskList = new List<Task>();
+            var tasks = indexers.Select(FetchIndexer);
-            var taskFactory = new TaskFactory(TaskCreationOptions.LongRunning, TaskContinuationOptions.None);
 
-            foreach (var indexer in indexers)
+            var batch = await Task.WhenAll(tasks);
-            {
-                var indexerLocal = indexer;
 
-                var task = taskFactory.StartNew(() =>
+            var result = batch.SelectMany(x => x).ToList();
-                     {
-                         try
-                         {
-                             var indexerReports = indexerLocal.FetchRecent();
-
-                             lock (result)
-                             {
-                                 _logger.Debug("Found {0} from {1}", indexerReports.Count, indexer.Name);
-
-                                 result.AddRange(indexerReports);
-                             }
-                         }
-                         catch (Exception e)
-                         {
-                             _logger.Error(e, "Error during RSS Sync");
-                         }
-                     }).LogExceptions();
-
-                taskList.Add(task);
-            }
-
-            Task.WaitAll(taskList.ToArray());
 
             _logger.Debug("Found {0} reports", result.Count);
 
             return result;
         }
+
+        private async Task<IList<ReleaseInfo>> FetchIndexer(IIndexer indexer)
+        {
+            try
+            {
+                return await indexer.FetchRecent();
+            }
+            catch (Exception ex)
+            {
+                _logger.Error(ex, "Error during RSS Sync");
+            }
+
+            return Array.Empty<ReleaseInfo>();
+        }
     }
 }

src/NzbDrone.Core/Indexers/FileList/FileListRequestGenerator.cs

@@ -23,7 +23,11 @@ namespace NzbDrone.Core.Indexers.FileList
         {
             var pageableRequests = new IndexerPageableRequestChain();
 
-            pageableRequests.Add(GetRequest("search-torrents", Settings.Categories, string.Format("&type=name&query={0}+{1}", Uri.EscapeDataString(searchCriteria.AuthorQuery.Trim()), Uri.EscapeDataString(searchCriteria.BookQuery.Trim()))));
+            var authorQuery = searchCriteria.AuthorQuery.Replace("+", " ").Trim();
+            var bookQuery = searchCriteria.BookQuery.Replace("+", " ").Trim();
+
+            pageableRequests.Add(GetRequest("search-torrents", Settings.Categories, string.Format("&type=name&query={0}+{1}", Uri.EscapeDataString(authorQuery), Uri.EscapeDataString(bookQuery))));
+            pageableRequests.Add(GetRequest("search-torrents", Settings.Categories, string.Format("&type=name&query={0}+{1}", Uri.EscapeDataString(bookQuery), Uri.EscapeDataString(authorQuery))));
 
             return pageableRequests;
         }
@@ -32,7 +36,9 @@ namespace NzbDrone.Core.Indexers.FileList
         {
             var pageableRequests = new IndexerPageableRequestChain();
 
-            pageableRequests.Add(GetRequest("search-torrents", Settings.Categories, string.Format("&type=name&query={0}", Uri.EscapeDataString(searchCriteria.AuthorQuery.Trim()))));
+            var authorQuery = searchCriteria.AuthorQuery.Replace("+", " ").Trim();
+
+            pageableRequests.Add(GetRequest("search-torrents", Settings.Categories, string.Format("&type=name&query={0}", Uri.EscapeDataString(authorQuery))));
 
             return pageableRequests;
         }

src/NzbDrone.Core/Indexers/FileList/FileListSettings.cs

@@ -28,7 +28,7 @@ namespace NzbDrone.Core.Indexers.FileList
 
             Categories = new int[]
             {
-                (int)FileListCategories.DOCS
+                (int)FileListCategories.Docs
             };
         }
 
@@ -61,7 +61,7 @@ namespace NzbDrone.Core.Indexers.FileList
 
     public enum FileListCategories
     {
-        [FieldOption]
+        [FieldOption(Label = "Docs")]
-        DOCS = 16,
+        Docs = 16,
     }
 }

src/NzbDrone.Core/Indexers/Gazelle/Gazelle.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Cache;
@@ -68,11 +69,12 @@ namespace NzbDrone.Core.Indexers.Gazelle
             return settings;
         }
 
-        protected override void Test(List<ValidationFailure> failures)
+        protected override async Task Test(List<ValidationFailure> failures)
         {
             // Remove previous cookies when testing incase user or pwd change
             _authCookieCache.Remove(Settings.BaseUrl.Trim().TrimEnd('/'));
-            base.Test(failures);
+
+            await base.Test(failures);
         }
     }
 }

src/NzbDrone.Core/Indexers/Gazelle/GazelleRequestGenerator.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Net.Http;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Cache;
 using NzbDrone.Common.Extensions;
@@ -43,17 +44,14 @@ namespace NzbDrone.Core.Indexers.Gazelle
 
         private IEnumerable<IndexerRequest> GetRequest(string searchParameters)
         {
-            Authenticate();
+            Authenticate().GetAwaiter().GetResult();
 
             var filter = "";
             if (searchParameters == null)
             {
             }
 
-            var request =
+            var request = new IndexerRequest($"{Settings.BaseUrl.Trim().TrimEnd('/')}/ajax.php?action=browse&searchstr={searchParameters}{filter}", HttpAccept.Json);
-                new IndexerRequest(
-                    $"{Settings.BaseUrl.Trim().TrimEnd('/')}/ajax.php?action=browse&searchstr={searchParameters}{filter}",
-                    HttpAccept.Json);
 
             var cookies = AuthCookieCache.Find(Settings.BaseUrl.Trim().TrimEnd('/'));
             foreach (var cookie in cookies)
@@ -64,36 +62,36 @@ namespace NzbDrone.Core.Indexers.Gazelle
             yield return request;
         }
 
-        private GazelleAuthResponse GetIndex(Dictionary<string, string> cookies)
+        private async Task<GazelleAuthResponse> GetIndex(Dictionary<string, string> cookies)
         {
             var indexRequestBuilder = new HttpRequestBuilder($"{Settings.BaseUrl.Trim().TrimEnd('/')}")
             {
-                LogResponseContent = true
+                LogResponseContent = true,
+                Method = HttpMethod.Post
             };
 
             indexRequestBuilder.SetCookies(cookies);
-            indexRequestBuilder.Method = HttpMethod.Post;
             indexRequestBuilder.Resource("ajax.php?action=index");
 
             var authIndexRequest = indexRequestBuilder
                 .Accept(HttpAccept.Json)
                 .Build();
 
-            var indexResponse = HttpClient.Execute(authIndexRequest);
+            var indexResponse = await HttpClient.ExecuteAsync(authIndexRequest);
 
             var result = Json.Deserialize<GazelleAuthResponse>(indexResponse.Content);
 
             return result;
         }
 
-        private void Authenticate()
+        private async Task Authenticate()
         {
             var requestBuilder = new HttpRequestBuilder($"{Settings.BaseUrl.Trim().TrimEnd('/')}")
             {
-                LogResponseContent = true
+                LogResponseContent = true,
+                Method = HttpMethod.Post
             };
 
-            requestBuilder.Method = HttpMethod.Post;
             requestBuilder.Resource("login.php");
             requestBuilder.PostProcess += r => r.RequestTimeout = TimeSpan.FromSeconds(15);
 
@@ -111,19 +109,20 @@ namespace NzbDrone.Core.Indexers.Gazelle
                     .Accept(HttpAccept.Json)
                     .Build();
 
-                var response = HttpClient.Execute(authLoginRequest);
+                var response = await HttpClient.ExecuteAsync(authLoginRequest);
 
                 cookies = response.GetCookies();
 
                 AuthCookieCache.Set(authKey, cookies);
             }
 
-            var index = GetIndex(cookies);
+            var index = await GetIndex(cookies);
 
             if (index == null || index.Status.IsNullOrWhiteSpace() || index.Status != "success")
             {
                 Logger.Debug("Gazelle authentication failed.");
                 AuthCookieCache.Remove(authKey);
+
                 throw new Exception("Failed to authenticate with Gazelle.");
             }
 

src/NzbDrone.Core/Indexers/HttpIndexerBase.cs

@@ -40,31 +40,31 @@ namespace NzbDrone.Core.Indexers
             _httpClient = httpClient;
         }
 
-        public override IList<ReleaseInfo> FetchRecent()
+        public override Task<IList<ReleaseInfo>> FetchRecent()
         {
             if (!SupportsRss)
             {
-                return new List<ReleaseInfo>();
+                return Task.FromResult<IList<ReleaseInfo>>(Array.Empty<ReleaseInfo>());
             }
 
             return FetchReleases(g => g.GetRecentRequests(), true);
         }
 
-        public override IList<ReleaseInfo> Fetch(BookSearchCriteria searchCriteria)
+        public override Task<IList<ReleaseInfo>> Fetch(BookSearchCriteria searchCriteria)
         {
             if (!SupportsSearch)
             {
-                return new List<ReleaseInfo>();
+                return Task.FromResult<IList<ReleaseInfo>>(Array.Empty<ReleaseInfo>());
             }
 
             return FetchReleases(g => g.GetSearchRequests(searchCriteria));
         }
 
-        public override IList<ReleaseInfo> Fetch(AuthorSearchCriteria searchCriteria)
+        public override Task<IList<ReleaseInfo>> Fetch(AuthorSearchCriteria searchCriteria)
         {
             if (!SupportsSearch)
             {
-                return new List<ReleaseInfo>();
+                return Task.FromResult<IList<ReleaseInfo>>(Array.Empty<ReleaseInfo>());
             }
 
             return FetchReleases(g => g.GetSearchRequests(searchCriteria));
@@ -75,7 +75,7 @@ namespace NzbDrone.Core.Indexers
             return new HttpRequest(link);
         }
 
-        protected virtual IList<ReleaseInfo> FetchReleases(Func<IIndexerRequestGenerator, IndexerPageableRequestChain> pageableRequestChainSelector, bool isRecent = false)
+        protected virtual async Task<IList<ReleaseInfo>> FetchReleases(Func<IIndexerRequestGenerator, IndexerPageableRequestChain> pageableRequestChainSelector, bool isRecent = false)
         {
             var releases = new List<ReleaseInfo>();
             var url = string.Empty;
@@ -107,7 +107,7 @@ namespace NzbDrone.Core.Indexers
                         {
                             url = request.Url.FullUri;
 
-                            var page = FetchPage(request, parser);
+                            var page = await FetchPage(request, parser);
 
                             pagedReleases.AddRange(page);
 
@@ -257,9 +257,17 @@ namespace NzbDrone.Core.Indexers
 
         protected virtual bool IsValidRelease(ReleaseInfo release)
         {
+            if (release.Title.IsNullOrWhiteSpace())
+            {
+                _logger.Trace("Invalid Release: '{0}' from indexer: {1}. No title provided.", release.InfoUrl, Definition.Name);
+
+                return false;
+            }
+
             if (release.DownloadUrl.IsNullOrWhiteSpace())
             {
-                _logger.Trace("Invalid Release: '{0}' from indexer: {1}. No Download URL provided.", release.Title, release.Indexer);
+                _logger.Trace("Invalid Release: '{0}' from indexer: {1}. No Download URL provided.", release.Title, Definition.Name);
+
                 return false;
             }
 
@@ -271,9 +279,9 @@ namespace NzbDrone.Core.Indexers
             return PageSize != 0 && page.Count >= PageSize;
         }
 
-        protected virtual IList<ReleaseInfo> FetchPage(IndexerRequest request, IParseIndexerResponse parser)
+        protected virtual async Task<IList<ReleaseInfo>> FetchPage(IndexerRequest request, IParseIndexerResponse parser)
         {
-            var response = FetchIndexerResponse(request);
+            var response = await FetchIndexerResponse(request);
 
             try
             {
@@ -287,7 +295,7 @@ namespace NzbDrone.Core.Indexers
             }
         }
 
-        protected virtual IndexerResponse FetchIndexerResponse(IndexerRequest request)
+        protected virtual async Task<IndexerResponse> FetchIndexerResponse(IndexerRequest request)
         {
             _logger.Debug("Downloading Feed " + request.HttpRequest.ToString(false));
 
@@ -298,15 +306,17 @@ namespace NzbDrone.Core.Indexers
 
             request.HttpRequest.RateLimitKey = Definition.Id.ToString();
 
-            return new IndexerResponse(request, _httpClient.Execute(request.HttpRequest));
+            var response = await _httpClient.ExecuteAsync(request.HttpRequest);
+
+            return new IndexerResponse(request, response);
         }
 
-        protected override void Test(List<ValidationFailure> failures)
+        protected override async Task Test(List<ValidationFailure> failures)
         {
-            failures.AddIfNotNull(TestConnection());
+            failures.AddIfNotNull(await TestConnection());
         }
 
-        protected virtual ValidationFailure TestConnection()
+        protected virtual async Task<ValidationFailure> TestConnection()
         {
             try
             {
@@ -319,7 +329,7 @@ namespace NzbDrone.Core.Indexers
                     return new ValidationFailure(string.Empty, "No rss feed query available. This may be an issue with the indexer or your indexer category settings.");
                 }
 
-                var releases = FetchPage(firstRequest, parser);
+                var releases = await FetchPage(firstRequest, parser);
 
                 if (releases.Empty())
                 {

src/NzbDrone.Core/Indexers/IIndexer.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.Threading.Tasks;
 using NzbDrone.Common.Http;
 using NzbDrone.Core.IndexerSearch.Definitions;
 using NzbDrone.Core.Parser.Model;
@@ -12,9 +13,9 @@ namespace NzbDrone.Core.Indexers
         bool SupportsSearch { get; }
         DownloadProtocol Protocol { get; }
 
-        IList<ReleaseInfo> FetchRecent();
+        Task<IList<ReleaseInfo>> FetchRecent();
-        IList<ReleaseInfo> Fetch(BookSearchCriteria searchCriteria);
+        Task<IList<ReleaseInfo>> Fetch(BookSearchCriteria searchCriteria);
-        IList<ReleaseInfo> Fetch(AuthorSearchCriteria searchCriteria);
+        Task<IList<ReleaseInfo>> Fetch(AuthorSearchCriteria searchCriteria);
         HttpRequest GetDownloadRequest(string link);
     }
 }

src/NzbDrone.Core/Indexers/IndexerBase.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Http;
@@ -66,16 +67,14 @@ namespace NzbDrone.Core.Indexers
 
         protected TSettings Settings => (TSettings)Definition.Settings;
 
-        public abstract IList<ReleaseInfo> FetchRecent();
+        public abstract Task<IList<ReleaseInfo>> FetchRecent();
-
+        public abstract Task<IList<ReleaseInfo>> Fetch(BookSearchCriteria searchCriteria);
-        public abstract IList<ReleaseInfo> Fetch(BookSearchCriteria searchCriteria);
+        public abstract Task<IList<ReleaseInfo>> Fetch(AuthorSearchCriteria searchCriteria);
-        public abstract IList<ReleaseInfo> Fetch(AuthorSearchCriteria searchCriteria);
         public abstract HttpRequest GetDownloadRequest(string link);
 
         protected virtual IList<ReleaseInfo> CleanupReleases(IEnumerable<ReleaseInfo> releases)
         {
             var result = releases.DistinctBy(v => v.Guid).ToList();
-            var settings = Definition.Settings as IIndexerSettings;
 
             result.ForEach(c =>
             {
@@ -94,7 +93,7 @@ namespace NzbDrone.Core.Indexers
 
             try
             {
-                Test(failures);
+                Test(failures).GetAwaiter().GetResult();
             }
             catch (Exception ex)
             {
@@ -105,7 +104,7 @@ namespace NzbDrone.Core.Indexers
             return new ValidationResult(failures);
         }
 
-        protected abstract void Test(List<ValidationFailure> failures);
+        protected abstract Task Test(List<ValidationFailure> failures);
 
         public override string ToString()
         {

src/NzbDrone.Core/Indexers/Newznab/Newznab.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Extensions;
@@ -92,9 +93,10 @@ namespace NzbDrone.Core.Indexers.Newznab
             return settings;
         }
 
-        protected override void Test(List<ValidationFailure> failures)
+        protected override async Task Test(List<ValidationFailure> failures)
         {
-            base.Test(failures);
+            await base.Test(failures);
+
             if (failures.HasErrors())
             {
                 return;

src/NzbDrone.Core/Indexers/Newznab/NewznabCapabilitiesProvider.cs

@@ -7,6 +7,7 @@ using NzbDrone.Common.Cache;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Http;
 using NzbDrone.Common.Serializer;
+using NzbDrone.Core.Indexers.Exceptions;
 
 namespace NzbDrone.Core.Indexers.Newznab
 {
@@ -73,6 +74,13 @@ namespace NzbDrone.Core.Indexers.Newznab
                 _logger.Debug(ex, "Failed to parse newznab api capabilities for {0}", indexerSettings.BaseUrl);
                 throw;
             }
+            catch (ApiKeyException ex)
+            {
+                ex.WithData(response, 128 * 1024);
+                _logger.Trace("Unexpected Response content ({0} bytes): {1}", response.ResponseData.Length, response.Content);
+                _logger.Debug(ex, "Failed to parse newznab api capabilities for {0}, invalid API key", indexerSettings.BaseUrl);
+                throw;
+            }
             catch (Exception ex)
             {
                 ex.WithData(response, 128 * 1024);

src/NzbDrone.Core/Indexers/RssSyncService.cs

@@ -1,4 +1,5 @@
 using System.Linq;
+using System.Threading.Tasks;
 using NLog;
 using NzbDrone.Common.Instrumentation.Extensions;
 using NzbDrone.Core.DecisionEngine;
@@ -39,16 +40,16 @@ namespace NzbDrone.Core.Indexers
             _logger = logger;
         }
 
-        private ProcessedDecisions Sync()
+        private async Task<ProcessedDecisions> Sync()
         {
             _logger.ProgressInfo("Starting RSS Sync");
 
-            var rssReleases = _rssFetcherAndParser.Fetch();
+            var rssReleases = await _rssFetcherAndParser.Fetch();
             var pendingReleases = _pendingReleaseService.GetPending();
 
             var reports = rssReleases.Concat(pendingReleases).ToList();
             var decisions = _downloadDecisionMaker.GetRssDecision(reports);
-            var processed = _processDownloadDecisions.ProcessDecisions(decisions);
+            var processed = await _processDownloadDecisions.ProcessDecisions(decisions);
 
             var message = string.Format("RSS Sync Completed. Reports found: {0}, Reports grabbed: {1}", reports.Count, processed.Grabbed.Count);
 
@@ -64,7 +65,7 @@ namespace NzbDrone.Core.Indexers
 
         public void Execute(RssSyncCommand message)
         {
-            var processed = Sync();
+            var processed = Sync().GetAwaiter().GetResult();
             var grabbedOrPending = processed.Grabbed.Concat(processed.Pending).ToList();
 
             _eventAggregator.PublishEvent(new RssSyncCompleteEvent(processed));

src/NzbDrone.Core/Indexers/Torznab/Torznab.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Threading.Tasks;
 using FluentValidation.Results;
 using NLog;
 using NzbDrone.Common.Extensions;
@@ -69,9 +70,10 @@ namespace NzbDrone.Core.Indexers.Torznab
             return settings;
         }
 
-        protected override void Test(List<ValidationFailure> failures)
+        protected override async Task Test(List<ValidationFailure> failures)
         {
-            base.Test(failures);
+            await base.Test(failures);
+
             if (failures.HasErrors())
             {
                 return;

src/NzbDrone.Core/Localization/Core/bg.json

@@ -626,5 +626,7 @@
     "AddNew": "Добави нов",
     "NextExecution": "Следващо изпълнение",
     "AllResultsAreHiddenByTheAppliedFilter": "Всички резултати са скрити от приложения филтър",
-    "Backup": "Архивиране"
+    "Backup": "Архивиране",
+    "MetadataProfiles": "Добави профил на метадата",
+    "MetadataProfile": "Добави профил на метадата"
 }

src/NzbDrone.Core/Localization/Core/cs.json

@@ -13,36 +13,36 @@
     "45MinutesFourtyFive": "90 minut: {0}",
     "60MinutesSixty": "60 minut: {0}",
     "APIKey": "Klíč API",
-    "About": "O",
+    "About": "O aplikaci",
     "AddListExclusion": "Přidat vyloučení seznamu",
-    "AddingTag": "Přidávání značky",
+    "AddingTag": "Přidání značky",
-    "AgeWhenGrabbed": "Stáří (při zachycení)",
+    "AgeWhenGrabbed": "Stáří (kdy bylo získáno)",
-    "AlreadyInYourLibrary": "Již ve vaší knihovně",
+    "AlreadyInYourLibrary": "Již máte ve své knihovně",
     "AlternateTitles": "Alternativní název",
-    "Analytics": "Analytics",
+    "Analytics": "Analýzy",
     "AnalyticsEnabledHelpText": "Odesílejte anonymní informace o použití a chybách na servery Radarru. To zahrnuje informace o vašem prohlížeči, které stránky Radarr WebUI používáte, hlášení chyb a také verzi operačního systému a běhového prostředí. Tyto informace použijeme k upřednostnění funkcí a oprav chyb.",
     "AppDataDirectory": "Adresář AppData",
     "ApplyTags": "Použít značky",
-    "Authentication": "Ověření",
+    "Authentication": "Ověřování",
     "AuthenticationMethodHelpText": "Vyžadovat uživatelské jméno a heslo pro přístup k Radarr",
     "AuthorClickToChangeBook": "Kliknutím změníte film",
-    "AutoRedownloadFailedHelpText": "Automaticky vyhledejte a pokuste se stáhnout jiné vydání",
+    "AutoRedownloadFailedHelpText": "Automatické vyhledání a pokus o stažení jiného vydání",
     "AutoUnmonitorPreviouslyDownloadedBooksHelpText": "Filmy odstraněné z disku jsou automaticky sledovány v Radarru",
     "Automatic": "Automatický",
     "BackupFolderHelpText": "Relativní cesty budou v adresáři AppData společnosti Radarr",
-    "BackupNow": "Zálohovat hned",
+    "BackupNow": "Ihned zálohovat",
-    "BackupRetentionHelpText": "Automatické zálohy starší než doba uchování budou automaticky vyčištěny",
+    "BackupRetentionHelpText": "Automatické zálohy starší než doba uchovávání budou automaticky vyčištěny",
     "Backups": "Zálohy",
-    "BindAddress": "Vazba adresy",
+    "BindAddress": "Vázat adresu",
-    "BindAddressHelpText": "Platná adresa IP4 nebo '*' pro všechna rozhraní",
+    "BindAddressHelpText": "Platná IP adresa, localhost nebo '*' pro všechna rozhraní",
     "BindAddressHelpTextWarning": "Vyžaduje restart, aby se projevilo",
     "BookIsDownloading": "Film se stahuje",
     "BookIsDownloadingInterp": "Film se stahuje - {0}% {1}",
     "Branch": "Větev",
-    "BypassProxyForLocalAddresses": "Obejít proxy pro místní adresy",
+    "BypassProxyForLocalAddresses": "Obcházení proxy serveru pro místní adresy",
     "Calendar": "Kalendář",
     "CalendarWeekColumnHeaderHelpText": "Zobrazuje se nad každým sloupcem, když je aktivní zobrazení týden",
-    "Cancel": "zrušení",
+    "Cancel": "Zrušit",
     "CancelMessageText": "Opravdu chcete zrušit tento nevyřízený úkol?",
     "CertificateValidation": "Ověření certifikátu",
     "CertificateValidationHelpText": "Změňte přísnost ověřování certifikátů HTTPS. Neměňte, pokud nerozumíte rizikům.",
@@ -53,33 +53,33 @@
     "ChmodFolderHelpTextWarning": "Funguje to pouze v případě, že je uživatel souboru Radarr vlastníkem souboru. Je lepší zajistit, aby stahovací klient správně nastavil oprávnění.",
     "ChownGroupHelpText": "Název skupiny nebo gid. Použijte gid pro vzdálené systémy souborů.",
     "ChownGroupHelpTextWarning": "Funguje to pouze v případě, že je uživatel souboru Radarr vlastníkem souboru. Je lepší zajistit, aby stahovací klient používal stejnou skupinu jako Radarr.",
-    "Clear": "Průhledná",
+    "Clear": "Vyčistit",
-    "ClickToChangeQuality": "Klepnutím změníte kvalitu",
+    "ClickToChangeQuality": "Kliknutím změníte kvalitu",
     "ClientPriority": "Priorita klienta",
     "CloneIndexer": "Klonovat indexátor",
     "CloneProfile": "Klonovat profil",
     "Close": "Zavřít",
     "Columns": "Sloupce",
     "CompletedDownloadHandling": "Zpracování stahování bylo dokončeno",
-    "ConnectSettings": "Připojit nastavení",
+    "ConnectSettings": "Nastavení připojení",
     "Connections": "Připojení",
     "CopyUsingHardlinksHelpText": "Hardlinks použijte, když se pokoušíte kopírovat soubory z torrentů, které se stále používají",
     "CopyUsingHardlinksHelpTextWarning": "Zámky souborů mohou občas zabránit přejmenování souborů, které se právě vysazují. Výsev můžete dočasně deaktivovat a použít funkci Radarr pro přejmenování.",
     "CreateEmptyAuthorFoldersHelpText": "Během skenování disku vytvářejte chybějící složky filmů",
     "CreateGroup": "Vytvořit skupinu",
     "CutoffHelpText": "Jakmile je této kvality dosaženo, Radarr již nebude stahovat filmy",
-    "CutoffUnmet": "Cut-off Unmet",
+    "CutoffUnmet": "Vynechat nevyhovující",
     "DBMigration": "Migrace databáze",
     "Dates": "Termíny",
-    "DelayProfile": "Zpožděný profil",
+    "DelayProfile": "Profil zpoždění",
     "DelayProfiles": "Profily zpoždění",
     "DelayingDownloadUntilInterp": "Zpoždění stahování do {0} o {1}",
-    "Delete": "Vymazat",
+    "Delete": "Smazat",
-    "DeleteBackup": "Odstranit zálohu",
+    "DeleteBackup": "Odstranění zálohy",
-    "DeleteBackupMessageText": "Opravdu chcete smazat zálohu „{0}“?",
+    "DeleteBackupMessageText": "Opravdu chcete odstranit zálohu '{name}'?",
-    "DeleteDelayProfile": "Smazat profil zpoždění",
+    "DeleteDelayProfile": "Odstranění profilu zpoždění",
     "DeleteDelayProfileMessageText": "Opravdu chcete smazat tento profil zpoždění?",
-    "DeleteDownloadClient": "Odstranit staženého klienta",
+    "DeleteDownloadClient": "Odstranění klienta pro stahování",
     "DeleteDownloadClientMessageText": "Opravdu chcete odstranit klienta pro stahování „{0}“?",
     "DeleteEmptyFolders": "Odstraňte prázdné složky",
     "DeleteEmptyFoldersHelpText": "Během skenování disku a při mazání filmových souborů odstraňte prázdné složky s filmy",
@@ -455,12 +455,12 @@
     "ShowTitle": "Ukázat nadpis",
     "RemoveFromBlocklist": "Odebrat z černé listiny",
     "UnableToLoadBlocklist": "Nelze načíst černou listinu",
-    "Component": "Součástka",
+    "Component": "Komponenta",
     "Level": "Úroveň",
     "ReleaseBranchCheckOfficialBranchMessage": "Pobočka {0} není platná větev vydání Radarr, nebudete dostávat aktualizace",
     "Time": "Čas",
-    "Blocklist": "Černá listina",
+    "Blocklist": "Blocklist",
-    "BlocklistRelease": "Vydání černé listiny",
+    "BlocklistRelease": "Blocklist pro vydání",
     "ShowUnknownAuthorItems": "Zobrazit neznámé položky filmu",
     "ThisCannotBeCancelled": "Toto nelze zrušit po spuštění bez restartování Radarru.",
     "UnselectAll": "Odznačit vše",
@@ -485,7 +485,7 @@
     "SettingsRemotePathMappingRemotePath": "Vzdálená cesta",
     "UISettingsSummary": "Možnosti kalendáře, data a barev",
     "DownloadClientsSettingsSummary": "Stahování klientů, zpracování stahování a mapování vzdálených cest",
-    "AppDataLocationHealthCheckMessage": "Aktualizace nebude možné zabránit smazání AppData při aktualizaci",
+    "AppDataLocationHealthCheckMessage": "Aktualizace nebude možná, aby se zabránilo odstranění AppData při aktualizaci",
     "FileWasDeletedByViaUI": "Soubor byl odstraněn prostřednictvím uživatelského rozhraní",
     "IndexersSettingsSummary": "Indexery a omezení vydání",
     "IndexerStatusCheckSingleClientMessage": "Indexery nedostupné z důvodu selhání: {0}",
@@ -556,7 +556,7 @@
     "Conditions": "Podmínky",
     "CopyToClipboard": "Zkopírovat do schránky",
     "CustomFormat": "Vlastní formát",
-    "DeleteCustomFormat": "Odstranit vlastní formát",
+    "DeleteCustomFormat": "Odstranění vlastního formátu",
     "DeleteCustomFormatMessageText": "Opravdu chcete odstranit indexer „{0}“?",
     "ExportCustomFormat": "Exportovat vlastní formát",
     "Formats": "Formáty",
@@ -573,14 +573,14 @@
     "HideAdvanced": "Skrýt pokročilé",
     "ShowAdvanced": "Zobrazit pokročilé",
     "ShownClickToHide": "Zobrazeno, kliknutím se skryjete",
-    "ColonReplacement": "Výměna tlustého střeva",
+    "ColonReplacement": "Nahrazení dvojtečky",
     "ReplaceWithDash": "Nahraďte Dash",
     "ReplaceWithSpaceDashSpace": "Nahraďte Space Dash Space",
     "ReplaceWithSpaceDash": "Nahraďte Space Dash",
     "DeleteRemotePathMapping": "Upravit vzdálené mapování cesty",
     "DeleteRemotePathMappingMessageText": "Opravdu chcete toto vzdálené mapování cesty odstranit?",
     "Negated": "Negovaný",
-    "BlocklistReleases": "Vydání černé listiny",
+    "BlocklistReleases": "Blocklist pro vydání",
     "DeleteConditionMessageText": "Opravdu chcete smazat značku „{0}“?",
     "RemoveSelectedItemBlocklistMessageText": "Opravdu chcete odebrat vybrané položky z černé listiny?",
     "RemoveSelectedItemQueueMessageText": "Opravdu chcete odebrat {0} položku {1} z fronty?",
@@ -597,12 +597,12 @@
     "NoChange": "Žádná změna",
     "RemovingTag": "Odebírání značky",
     "SetTags": "Nastavit značky",
-    "ApplyTagsHelpTextAdd": "Přidat: Přidejte značky do existujícího seznamu značek",
+    "ApplyTagsHelpTextAdd": "Přidat: Přidá značky k již existujícímu seznamu",
-    "ApplyTagsHelpTextHowToApplyDownloadClients": "Jak použít značky na vybrané filmy",
+    "ApplyTagsHelpTextHowToApplyDownloadClients": "Jak použít značky na vybrané klienty pro stahování",
-    "ApplyTagsHelpTextHowToApplyImportLists": "Jak použít značky na vybrané filmy",
+    "ApplyTagsHelpTextHowToApplyImportLists": "Jak použít značky na vybrané importní seznamy",
-    "ApplyTagsHelpTextHowToApplyIndexers": "Jak použít značky na vybrané filmy",
+    "ApplyTagsHelpTextHowToApplyIndexers": "Jak použít značky na vybrané indexátory",
-    "ApplyTagsHelpTextRemove": "Odebrat: Odebere zadané značky",
+    "ApplyTagsHelpTextRemove": "Odebrat: Odebrat zadané značky",
-    "ApplyTagsHelpTextReplace": "Nahradit: Nahradit tagy zadanými tagy (pro vymazání všech tagů zadejte žádné tagy)",
+    "ApplyTagsHelpTextReplace": "Nahradit: Nahradit značky zadanými značkami (zadáním žádné značky vymažete všechny značky)",
     "DeleteSelectedDownloadClients": "Odstranit staženého klienta",
     "DeleteSelectedIndexersMessageText": "Opravdu chcete odstranit indexer „{0}“?",
     "Yes": "Ano",
@@ -617,19 +617,51 @@
     "Medium": "Střední",
     "NoResultsFound": "Nebyly nalezeny žádné výsledky",
     "SomeResultsAreHiddenByTheAppliedFilter": "Některé výsledky jsou použitým filtrem skryty",
-    "AllResultsAreHiddenByTheAppliedFilter": "Všechny výsledky jsou skryty použitým filtrem",
+    "AllResultsAreHiddenByTheAppliedFilter": "Všechny výsledky jsou schovány použitým filtrem",
     "Events": "Události",
     "FreeSpace": "Volný prostor",
     "System": "Systém",
     "TotalSpace": "Celkový prostor",
     "ConnectionLost": "Spojení ztraceno",
-    "ConnectionLostReconnect": "Radarr se pokusí připojit automaticky, nebo můžete kliknout na znovu načíst níže.",
+    "ConnectionLostReconnect": "{appName} se pokusí připojit automaticky, nebo můžete kliknout na tlačítko znovunačtení níže.",
-    "ConnectionLostToBackend": "Radarr ztratil spojení s back-endem a pro obnovení funkčnosti bude nutné jej znovu načíst.",
+    "ConnectionLostToBackend": "{appName} ztratila spojení s backendem a pro obnovení funkčnosti bude třeba ji znovu načíst.",
     "Large": "Velký",
     "LastDuration": "lastDuration",
     "Ui": "UI",
     "WhatsNew": "Co je nového?",
     "Activity": "Aktivita",
-    "AddNew": "Přidat nový",
+    "AddNew": "Přidat nové",
-    "NextExecution": "Další spuštění"
+    "NextExecution": "Další spuštění",
+    "ClickToChangeReleaseGroup": "Kliknutím změníte skupinu vydání",
+    "ApplicationURL": "URL aplikace",
+    "ApplicationUrlHelpText": "Externí adresa URL této aplikace včetně http(s)://, portu a základní adresy URL",
+    "Continuing": "Pokračující",
+    "AutomaticUpdatesDisabledDocker": "Automatické aktualizace nejsou při použití aktualizačního mechanismu Docker přímo podporovány. Obraz kontejneru je nutné aktualizovat mimo {appName} nebo použít skript",
+    "AppUpdated": "{appName} aktualizován",
+    "ApplyChanges": "Použít změny",
+    "AutoAdd": "Přidat automaticky",
+    "AutomaticAdd": "Přidat automaticky",
+    "ChownGroup": "Skupina chown",
+    "CloneCondition": "Klonovat podmínku",
+    "Clone": "Klonovat",
+    "ApiKeyValidationHealthCheckMessage": "Aktualizujte svůj klíč API tak, aby měl alespoň {0} znaků. Můžete to provést prostřednictvím nastavení nebo konfiguračního souboru",
+    "ChooseImportMethod": "Vyberte mód importu",
+    "CatalogNumber": "katalogové číslo",
+    "Publisher": "Vydavatel",
+    "StatusEndedContinuing": "Pokračující",
+    "MetadataProfiles": "profil metadat",
+    "ReleaseProfiles": "profil vydání",
+    "MetadataProfile": "profil metadat",
+    "Label": "Etiketa",
+    "Library": "Knihovna",
+    "BypassIfAboveCustomFormatScore": "Obejít, pokud je vyšší než skóre vlastního formátu",
+    "AppUpdatedVersion": "{appName} byla aktualizována na verzi `{version}`, abyste získali nejnovější změny, musíte znovu načíst {appName}.",
+    "BypassIfAboveCustomFormatScoreHelpText": "Povolit obcházení, pokud má vydání vyšší skóre, než je nakonfigurované minimální skóre vlastního formátu",
+    "BypassIfHighestQuality": "Obejít v případě nejvyšší kvality",
+    "Theme": "Motiv",
+    "MinimumCustomFormatScoreHelpText": "Minimální skóre vlastního formátu požadované pro obejití zpoždění preferovaného protokolu",
+    "Series": "Seriál",
+    "DeleteCondition": "Odstranit podmínku",
+    "Database": "Databáze",
+    "CountDownloadClientsSelected": "{count} vybraných klientů ke stahování"
 }