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314 lines
13 KiB
314 lines
13 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using NLog;
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using NzbDrone.Common.Extensions;
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using NzbDrone.Common.Http;
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using NzbDrone.Core.Configuration.Events;
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using NzbDrone.Core.Indexers;
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using NzbDrone.Core.Messaging.Commands;
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using NzbDrone.Core.Messaging.Events;
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using NzbDrone.Core.ThingiProvider;
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using NzbDrone.Core.ThingiProvider.Events;
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namespace NzbDrone.Core.Applications
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{
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public class ApplicationService : IHandleAsync<ProviderAddedEvent<IIndexer>>,
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IHandleAsync<ProviderDeletedEvent<IIndexer>>,
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IHandleAsync<ProviderAddedEvent<IApplication>>,
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IHandleAsync<ProviderUpdatedEvent<IIndexer>>,
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IHandleAsync<ProviderUpdatedEvent<IApplication>>,
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IHandleAsync<ProviderBulkUpdatedEvent<IIndexer>>,
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IHandleAsync<ApiKeyChangedEvent>,
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IExecute<ApplicationIndexerSyncCommand>
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{
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private readonly IApplicationFactory _applicationsFactory;
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private readonly IAppIndexerMapService _appIndexerMapService;
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private readonly IIndexerFactory _indexerFactory;
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private readonly IApplicationStatusService _applicationStatusService;
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private readonly Logger _logger;
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public ApplicationService(IApplicationFactory applicationsFactory, IApplicationStatusService applicationStatusService, IAppIndexerMapService appIndexerMapService, IIndexerFactory indexerFactory, Logger logger)
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{
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_applicationsFactory = applicationsFactory;
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_applicationStatusService = applicationStatusService;
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_appIndexerMapService = appIndexerMapService;
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_indexerFactory = indexerFactory;
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_logger = logger;
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}
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public void HandleAsync(ProviderAddedEvent<IApplication> message)
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{
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var appDefinition = (ApplicationDefinition)message.Definition;
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if (appDefinition.Enable)
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{
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var app = _applicationsFactory.GetInstance(appDefinition);
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var indexers = _indexerFactory.Enabled().Select(i => (IndexerDefinition)i.Definition).ToList();
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SyncIndexers(new List<IApplication> { app }, indexers);
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}
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}
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public void HandleAsync(ProviderUpdatedEvent<IApplication> message)
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{
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var appDefinition = (ApplicationDefinition)message.Definition;
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if (appDefinition.Enable)
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{
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var app = _applicationsFactory.GetInstance(appDefinition);
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var indexers = _indexerFactory.Enabled().Select(i => (IndexerDefinition)i.Definition).ToList();
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SyncIndexers(new List<IApplication> { app }, indexers);
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}
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}
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public void HandleAsync(ProviderAddedEvent<IIndexer> message)
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{
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var enabledApps = _applicationsFactory.SyncEnabled();
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foreach (var app in enabledApps)
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{
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if (ShouldHandleIndexer(app.Definition, message.Definition))
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{
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ExecuteAction(a => a.AddIndexer((IndexerDefinition)message.Definition), app);
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}
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}
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}
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public void HandleAsync(ProviderDeletedEvent<IIndexer> message)
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{
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var enabledApps = _applicationsFactory.SyncEnabled();
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foreach (var app in enabledApps)
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{
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ExecuteAction(a => a.RemoveIndexer(message.ProviderId), app);
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}
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}
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public void HandleAsync(ProviderUpdatedEvent<IIndexer> message)
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{
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var enabledApps = _applicationsFactory.SyncEnabled()
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.Where(n => ((ApplicationDefinition)n.Definition).SyncLevel == ApplicationSyncLevel.FullSync)
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.ToList();
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SyncIndexers(enabledApps, new List<IndexerDefinition> { (IndexerDefinition)message.Definition });
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}
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public void HandleAsync(ApiKeyChangedEvent message)
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{
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var enabledApps = _applicationsFactory.SyncEnabled();
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var indexers = _indexerFactory.AllProviders().Select(i => (IndexerDefinition)i.Definition).ToList();
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SyncIndexers(enabledApps, indexers, true);
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}
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public void HandleAsync(ProviderBulkUpdatedEvent<IIndexer> message)
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{
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var enabledApps = _applicationsFactory.SyncEnabled();
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var indexers = message.Definitions.Select(d => (IndexerDefinition)d).ToList();
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SyncIndexers(enabledApps, indexers);
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}
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public void Execute(ApplicationIndexerSyncCommand message)
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{
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var enabledApps = _applicationsFactory.SyncEnabled();
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var indexers = _indexerFactory.AllProviders().Select(i => (IndexerDefinition)i.Definition).ToList();
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SyncIndexers(enabledApps, indexers, true);
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}
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private void SyncIndexers(List<IApplication> applications, List<IndexerDefinition> indexers, bool removeRemote = false)
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{
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foreach (var app in applications)
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{
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var indexerMappings = _appIndexerMapService.GetMappingsForApp(app.Definition.Id);
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//Get Dictionary of Remote Indexers point to Prowlarr and what they are mapped to
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var remoteMappings = ExecuteAction(a => a.GetIndexerMappings(), app);
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if (remoteMappings == null)
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{
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continue;
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}
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//Add mappings if not already in db, these were setup manually in the app or orphaned by a table wipe
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foreach (var mapping in remoteMappings)
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{
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if (!indexerMappings.Any(m => (m.RemoteIndexerId > 0 && m.RemoteIndexerId == mapping.RemoteIndexerId) || (m.RemoteIndexerName.IsNotNullOrWhiteSpace() && m.RemoteIndexerName == mapping.RemoteIndexerName)))
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{
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var addMapping = new AppIndexerMap
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{
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AppId = app.Definition.Id,
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RemoteIndexerId = mapping.RemoteIndexerId,
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RemoteIndexerName = mapping.RemoteIndexerName,
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IndexerId = mapping.IndexerId
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};
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_appIndexerMapService.Insert(addMapping);
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indexerMappings.Add(addMapping);
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}
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}
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foreach (var indexer in indexers)
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{
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var definition = indexer;
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if (indexerMappings.Any(x => x.IndexerId == definition.Id))
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{
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if (((ApplicationDefinition)app.Definition).SyncLevel == ApplicationSyncLevel.FullSync && ShouldHandleIndexer(app.Definition, indexer))
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{
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ExecuteAction(a => a.UpdateIndexer(definition), app);
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}
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}
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else
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{
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if (indexer.Enable && ShouldHandleIndexer(app.Definition, indexer))
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{
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ExecuteAction(a => a.AddIndexer(definition), app);
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}
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}
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}
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if (removeRemote)
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{
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var allIndexers = _indexerFactory.All();
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foreach (var mapping in indexerMappings)
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{
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if (allIndexers.All(x => x.Id != mapping.IndexerId))
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{
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_logger.Info("Indexer with the ID {0} was found within {1} but is no longer defined within Prowlarr, this is being removed.", mapping.IndexerId, app.Name);
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ExecuteAction(a => a.RemoveIndexer(mapping.IndexerId), app);
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}
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}
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}
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}
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}
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private bool ShouldHandleIndexer(ProviderDefinition app, ProviderDefinition indexer)
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{
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if (app.Tags.Empty())
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{
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_logger.Debug("No tags set to application {0}.", app.Name);
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return true;
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}
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var intersectingTags = app.Tags.Intersect(indexer.Tags).ToArray();
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if (intersectingTags.Any())
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{
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_logger.Debug("Application {0} and indexer {1} [{2}] have {3} intersecting tags.", app.Name, indexer.Name, indexer.Id, intersectingTags.Length);
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return true;
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}
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_logger.Debug("Application {0} does not have any intersecting tags with {1} [{2}]. Indexer will not be synced.", app.Name, indexer.Name, indexer.Id);
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return false;
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}
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private void ExecuteAction(Action<IApplication> applicationAction, IApplication application)
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{
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try
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{
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applicationAction(application);
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_applicationStatusService.RecordSuccess(application.Definition.Id);
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}
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catch (WebException webException)
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{
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if (webException.Status == WebExceptionStatus.NameResolutionFailure ||
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webException.Status == WebExceptionStatus.ConnectFailure)
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{
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_applicationStatusService.RecordConnectionFailure(application.Definition.Id);
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}
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else
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{
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_applicationStatusService.RecordFailure(application.Definition.Id);
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}
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if (webException.Message.Contains("502") || webException.Message.Contains("503") ||
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webException.Message.Contains("timed out"))
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{
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_logger.Warn("{0} server is currently unavailable. {1}", this, webException.Message);
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}
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else
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{
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_logger.Warn("{0} {1}", this, webException.Message);
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}
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}
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catch (TooManyRequestsException ex)
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{
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var minimumBackOff = ex.RetryAfter != TimeSpan.Zero ? ex.RetryAfter : TimeSpan.FromHours(1);
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_applicationStatusService.RecordFailure(application.Definition.Id, minimumBackOff);
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_logger.Warn("API Request Limit reached for {0}", this);
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}
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catch (HttpException ex)
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{
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_applicationStatusService.RecordFailure(application.Definition.Id);
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_logger.Warn("{0} {1}", this, ex.Message);
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}
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catch (Exception ex)
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{
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_applicationStatusService.RecordFailure(application.Definition.Id);
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_logger.Error(ex, "An error occurred while talking to remote application.");
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}
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}
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private TResult ExecuteAction<TResult>(Func<IApplication, TResult> applicationAction, IApplication application)
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{
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try
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{
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var result = applicationAction(application);
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_applicationStatusService.RecordSuccess(application.Definition.Id);
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return result;
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}
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catch (WebException webException)
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{
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if (webException.Status == WebExceptionStatus.NameResolutionFailure ||
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webException.Status == WebExceptionStatus.ConnectFailure)
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{
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_applicationStatusService.RecordConnectionFailure(application.Definition.Id);
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}
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else
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{
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_applicationStatusService.RecordFailure(application.Definition.Id);
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}
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if (webException.Message.Contains("502") || webException.Message.Contains("503") ||
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webException.Message.Contains("timed out"))
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{
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_logger.Warn("{0} server is currently unavailable. {1}", this, webException.Message);
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}
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else
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{
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_logger.Warn("{0} {1}", this, webException.Message);
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}
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}
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catch (TooManyRequestsException ex)
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{
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var minimumBackOff = ex.RetryAfter != TimeSpan.Zero ? ex.RetryAfter : TimeSpan.FromHours(1);
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_applicationStatusService.RecordFailure(application.Definition.Id, minimumBackOff);
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_logger.Warn("API Request Limit reached for {0}", this);
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}
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catch (HttpException ex)
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{
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_applicationStatusService.RecordFailure(application.Definition.Id);
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_logger.Warn("{0} {1}", this, ex.Message);
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}
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catch (Exception ex)
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{
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_applicationStatusService.RecordFailure(application.Definition.Id);
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_logger.Error(ex, "An error occurred while talking to remote application.");
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}
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return default(TResult);
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}
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}
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}
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