public PackagesController(
     IPackageService packageService,
     IUploadFileService uploadFileService,
     IMessageService messageService,
     ISearchService searchService,
     IAutomaticallyCuratePackageCommand autoCuratedPackageCmd,
     IPackageFileService packageFileService,
     IEntitiesContext entitiesContext,
     IAppConfiguration config,
     IIndexingService indexingService,
     ICacheService cacheService,
     EditPackageService editPackageService,
     IPackageDeleteService packageDeleteService,
     ISupportRequestService supportRequestService,
     AuditingService auditingService)
 {
     _packageService = packageService;
     _uploadFileService = uploadFileService;
     _messageService = messageService;
     _searchService = searchService;
     _autoCuratedPackageCmd = autoCuratedPackageCmd;
     _packageFileService = packageFileService;
     _entitiesContext = entitiesContext;
     _config = config;
     _indexingService = indexingService;
     _cacheService = cacheService;
     _editPackageService = editPackageService;
     _packageDeleteService = packageDeleteService;
     _supportRequestService = supportRequestService;
     _auditingService = auditingService;
 }

 public PackageService(
     ICryptographyService cryptoSvc,
     IEntityRepository<PackageRegistration> packageRegistrationRepo,
     IEntityRepository<Package> packageRepo,
     IEntityRepository<PackageStatistics> packageStatsRepo,
     IPackageFileService packageFileSvc,
     IEntityRepository<PackageOwnerRequest> packageOwnerRequestRepository,
     IIndexingService indexingSvc,
     IEntityRepository<PackageAuthor> packageAuthorRepo,
     IEntityRepository<PackageFramework> packageFrameworksRepo,
     IEntityRepository<PackageDependency> packageDependenciesRepo,
     IEntityRepository<PackageFile> packageFilesRepo,
     IMessageService messageSvc)
 {
     this.cryptoSvc = cryptoSvc;
     this.packageRegistrationRepo = packageRegistrationRepo;
     this.packageRepo = packageRepo;
     this.packageStatsRepo = packageStatsRepo;
     this.packageFileSvc = packageFileSvc;
     this.packageOwnerRequestRepository = packageOwnerRequestRepository;
     this.indexingSvc = indexingSvc;
     this.packageAuthorRepo = packageAuthorRepo;
     this.packageFrameworksRepo = packageFrameworksRepo;
     this.packageDependenciesRepo = packageDependenciesRepo;
     this.packageFilesRepo = packageFilesRepo;
     this.messageSvc = messageSvc;
 }

 public ApiController(
     IEntitiesContext entitiesContext,
     IPackageService packageService,
     IPackageFileService packageFileService,
     IUserService userService,
     INuGetExeDownloaderService nugetExeDownloaderService,
     IContentService contentService,
     IIndexingService indexingService,
     ISearchService searchService,
     IAutomaticallyCuratePackageCommand autoCuratePackage,
     IStatusService statusService,
     IAppConfiguration config)
 {
     EntitiesContext = entitiesContext;
     PackageService = packageService;
     PackageFileService = packageFileService;
     UserService = userService;
     NugetExeDownloaderService = nugetExeDownloaderService;
     ContentService = contentService;
     StatisticsService = null;
     IndexingService = indexingService;
     SearchService = searchService;
     AutoCuratePackage = autoCuratePackage;
     StatusService = statusService;
     _config = config;
 }

 public ApiController(IPackageService packageSvc, IPackageFileService packageFileSvc, IUserService userSvc, INuGetExeDownloaderService nugetExeDownloaderSvc)
 {
     this.packageSvc = packageSvc;
     this.packageFileSvc = packageFileSvc;
     this.userSvc = userSvc;
     this.nugetExeDownloaderSvc = nugetExeDownloaderSvc;
 }

 public PackagesController(
     IPackageService packageService,
     IUploadFileService uploadFileService,
     IUserService userService,
     IMessageService messageService,
     ISearchService searchService,
     IAutomaticallyCuratePackageCommand autoCuratedPackageCmd,
     INuGetExeDownloaderService nugetExeDownloaderService,
     IPackageFileService packageFileService,
     IEntitiesContext entitiesContext,
     IAppConfiguration config,
     IIndexingService indexingService,
     ICacheService cacheService)
 {
     _packageService = packageService;
     _uploadFileService = uploadFileService;
     _userService = userService;
     _messageService = messageService;
     _searchService = searchService;
     _autoCuratedPackageCmd = autoCuratedPackageCmd;
     _nugetExeDownloaderService = nugetExeDownloaderService;
     _packageFileService = packageFileService;
     _entitiesContext = entitiesContext;
     _config = config;
     _indexingService = indexingService;
     _cacheService = cacheService;
 }

 public ApiController(IPackageService packageSvc, IPackageFileService packageFileSvc, IUserService userSvc, INuGetExeDownloaderService nugetExeDownloaderSvc, GallerySetting settings)
 {
     this.packageSvc = packageSvc;
     this.packageFileSvc = packageFileSvc;
     this.userSvc = userSvc;
     this.nugetExeDownloaderSvc = nugetExeDownloaderSvc;
     this.settings = settings;
 }

 public ReflowPackageService(
     IEntitiesContext entitiesContext,
     IPackageService packageService,
     IPackageFileService packageFileService)
 {
     _entitiesContext = entitiesContext;
     _packageService = packageService;
     _packageFileService = packageFileService;
 }

 public NuGetExeDownloaderService(
     IPackageService packageService,
     IPackageFileService packageFileService,
     IFileStorageService fileStorageService)
 {
     _packageService = packageService;
     _packageFileService = packageFileService;
     _fileStorageService = fileStorageService;
 }

 public NuGetExeDownloaderService(
     IPackageService packageSvc,
     IPackageFileService packageFileSvc,
     IFileStorageService fileStorageSvc)
 {
     this.packageSvc = packageSvc;
     this.packageFileSvc = packageFileSvc;
     this.fileStorageSvc = fileStorageSvc;
 }

 public ApiController(IPackageService packageSvc, IScanService scanSvc, IPackageFileService packageFileSvc, IUserService userSvc, INuGetExeDownloaderService nugetExeDownloaderSvc, IConfiguration settings)
 {
     this.packageSvc = packageSvc;
     this.scanSvc = scanSvc;
     this.packageFileSvc = packageFileSvc;
     this.userSvc = userSvc;
     this.nugetExeDownloaderSvc = nugetExeDownloaderSvc;
     this.settings = settings;
 }

 public ApiController(
     IPackageService packageService,
     IPackageFileService packageFileService,
     IUserService userService,
     INuGetExeDownloaderService nugetExeDownloaderService)
 {
     _packageService = packageService;
     _packageFileService = packageFileService;
     _userService = userService;
     _nugetExeDownloaderService = nugetExeDownloaderService;
 }

 public ApiController(
     IPackageService packageService,
     IPackageFileService packageFileService,
     IUserService userService,
     INuGetExeDownloaderService nugetExeDownloaderService,
     IContentService contentService,
     IIndexingService indexingService,
     IStatisticsService statisticsService)
     : this(packageService, packageFileService, userService, nugetExeDownloaderService, contentService, indexingService)
 {
     _statisticsService = statisticsService;
 }

 public PackageService(
     ICryptographyService cryptoSvc,
     IEntityRepository<PackageRegistration> packageRegistrationRepo,
     IEntityRepository<Package> packageRepo,
     IEntityRepository<PackageStatistics> packageStatsRepo,
     IPackageFileService packageFileSvc)
 {
     this.cryptoSvc = cryptoSvc;
     this.packageRegistrationRepo = packageRegistrationRepo;
     this.packageRepo = packageRepo;
     this.packageStatsRepo = packageStatsRepo;
     this.packageFileSvc = packageFileSvc;
 }

 public PackagesController(
     ICryptographyService cryptoSvc,
     IPackageService packageSvc,
     IPackageFileService packageFileRepo,
     IUserService userSvc,
     IMessageService messageService)
 {
     this.cryptoSvc = cryptoSvc;
     this.packageSvc = packageSvc;
     this.packageFileSvc = packageFileRepo;
     this.userSvc = userSvc;
     this.messageService = messageService;
 }

 public ApiController(
     IEntitiesContext entitiesContext,
     IPackageService packageService,
     IPackageFileService packageFileService,
     IUserService userService,
     INuGetExeDownloaderService nugetExeDownloaderService,
     IContentService contentService,
     IIndexingService indexingService,
     IAutomaticallyCuratePackageCommand autoCuratePackage,
     IStatisticsService statisticsService)
     : this(entitiesContext, packageService, packageFileService, userService, nugetExeDownloaderService, contentService, indexingService, autoCuratePackage)
 {
     StatisticsService = statisticsService;
 }

 public PackageDeleteService(
     IEntityRepository<Package> packageRepository,
     IEntityRepository<PackageDelete> packageDeletesRepository,
     IEntitiesContext entitiesContext,
     IPackageService packageService,
     IIndexingService indexingService,
     IPackageFileService packageFileService,
     AuditingService auditingService)
 {
     _packageRepository = packageRepository;
     _packageDeletesRepository = packageDeletesRepository;
     _entitiesContext = entitiesContext;
     _packageService = packageService;
     _indexingService = indexingService;
     _packageFileService = packageFileService;
     _auditingService = auditingService;
 }

 public PackageService(
     ICryptographyService cryptoSvc,
     IEntityRepository<PackageRegistration> packageRegistrationRepo,
     IEntityRepository<Package> packageRepo,
     IEntityRepository<PackageStatistics> packageStatsRepo,
     IPackageFileService packageFileSvc,
     IEntityRepository<PackageOwnerRequest> packageOwnerRequestRepository,
     IIndexingService indexingSvc)
 {
     this.cryptoSvc = cryptoSvc;
     this.packageRegistrationRepo = packageRegistrationRepo;
     this.packageRepo = packageRepo;
     this.packageStatsRepo = packageStatsRepo;
     this.packageFileSvc = packageFileSvc;
     this.packageOwnerRequestRepository = packageOwnerRequestRepository;
     this.indexingSvc = indexingSvc;
 }

 public ApiController(
     IEntitiesContext entitiesContext,
     IPackageService packageService,
     IPackageFileService packageFileService,
     IUserService userService,
     INuGetExeDownloaderService nugetExeDownloaderService,
     IContentService contentService,
     IIndexingService indexingService)
 {
     EntitiesContext = entitiesContext;
     PackageService = packageService;
     PackageFileService = packageFileService;
     UserService = userService;
     NugetExeDownloaderService = nugetExeDownloaderService;
     ContentService = contentService;
     StatisticsService = null;
     IndexingService = indexingService;
 }

 public ApiController(
     IEntitiesContext entitiesContext,
     IPackageService packageService,
     IPackageFileService packageFileService,
     IUserService userService,
     INuGetExeDownloaderService nugetExeDownloaderService,
     IContentService contentService,
     IIndexingService indexingService,
     ISearchService searchService,
     IAutomaticallyCuratePackageCommand autoCuratePackage,
     IStatusService statusService,
     IStatisticsService statisticsService,
     IMessageService messageService,
     AuditingService auditingService,
     IGalleryConfigurationService configurationService)
     : this(entitiesContext, packageService, packageFileService, userService, nugetExeDownloaderService, contentService, indexingService, searchService, autoCuratePackage, statusService, messageService, auditingService, configurationService)
 {
     StatisticsService = statisticsService;
 }

        /// <summary>
        /// Look for the INupkg instance in the cache first. If it's in the cache, return it.
        /// Otherwise, download the package from the storage service and store it into the cache.
        /// </summary>
        public static async Task<INupkg> GetPackageFromCacheOrDownloadIt(
            Package package,
            IPackageCacheService cacheService,
            IPackageFileService packageFileService)
        {
            Debug.Assert(package != null);
            Debug.Assert(cacheService != null);
            Debug.Assert(packageFileService != null);

            string cacheKey = CreateCacheKey(package.PackageRegistration.Id, package.Version);
            byte[] buffer = cacheService.GetBytes(cacheKey);
            if (buffer == null)
            {
                // In the past, some very old packages can specify an external package binary not hosted at nuget.org.
                // We no longer allow that today.
                if (!String.IsNullOrEmpty(package.ExternalPackageUrl))
                {
                    var httpClient = new HttpClient();
                    using (var responseStream = await httpClient.GetStreamAsync(package.ExternalPackageUrl))
                    {
                        buffer = responseStream.ReadAllBytes();
                    }
                }
                else
                {
                    using (Stream stream = await packageFileService.DownloadPackageFileAsync(package))
                    {
                        if (stream == null)
                        {
                            throw new InvalidOperationException("Couldn't download the package from the storage.");
                        }

                        buffer = stream.ReadAllBytes();
                    }
                }

                cacheService.SetBytes(cacheKey, buffer);
            }

            return new Nupkg(new MemoryStream(buffer), leaveOpen: false);
        }