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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| // ****************************************************************************** | ||
| // © 2018 Sebastiaan Dammann | damsteen.nl | ||
| // | ||
| // File: : AppBuilderExtensions.cs | ||
| // Project : App | ||
| // ****************************************************************************** | ||
|
|
||
| namespace App.Support.DataProtection { | ||
| using System; | ||
| using System.IO; | ||
| using System.Security.Cryptography.X509Certificates; | ||
| using Microsoft.AspNetCore.DataProtection; | ||
| using Microsoft.Extensions.Configuration; | ||
| using Microsoft.Extensions.DependencyInjection; | ||
|
|
||
| internal static class ServiceCollectionExtensions { | ||
| public static void AddConfiguredDataProtection(this IServiceCollection services, IConfiguration configuration) | ||
| { | ||
| DataProtectionOptions dataProtectionOptions = configuration.GetValue<DataProtectionOptions>("DataProtection"); | ||
|
|
||
| if (dataProtectionOptions == null) | ||
| { | ||
| // Automatic - let ASP.NET Core defaults in place | ||
| return; | ||
| } | ||
|
|
||
| IDataProtectionBuilder dataProtectionBuilder; | ||
| switch (dataProtectionOptions.StorageOptions?.Type ?? DataProtectionStorageType.InMemory) | ||
| { | ||
| case DataProtectionStorageType.InMemory: | ||
| dataProtectionBuilder = ConfigureForInMemory(services); | ||
| break; | ||
| case DataProtectionStorageType.File: | ||
| dataProtectionBuilder = ConfigureForFile(services, dataProtectionOptions); | ||
| break; | ||
| default: | ||
| throw new ArgumentOutOfRangeException(); | ||
| } | ||
|
|
||
| switch (dataProtectionOptions.Protection) | ||
| { | ||
| case DataProtectionProtectionType.None: | ||
| break; | ||
| case DataProtectionProtectionType.Certificate: | ||
| ConfigureForCertificate(dataProtectionBuilder, dataProtectionOptions); | ||
| break; | ||
| case DataProtectionProtectionType.Windows: | ||
| ConfigureWindowProtection(dataProtectionBuilder); | ||
| break; | ||
| default: | ||
| throw new ArgumentOutOfRangeException(); | ||
| } | ||
|
|
||
| if (dataProtectionOptions.Lifetime != null) | ||
| { | ||
| dataProtectionBuilder.SetDefaultKeyLifetime(dataProtectionOptions.Lifetime.Value); | ||
| } | ||
| } | ||
|
|
||
| private static void ConfigureWindowProtection(IDataProtectionBuilder dataProtectionBuilder) => dataProtectionBuilder.ProtectKeysWithDpapi(); | ||
|
|
||
| private static IDataProtectionBuilder ConfigureForInMemory(IServiceCollection services) => services.AddConfiguredDataProtection().UseEphemeralDataProtectionProvider(); | ||
|
|
||
| private static IDataProtectionBuilder ConfigureForFile(IServiceCollection services, DataProtectionOptions dataProtectionOptions) | ||
| { | ||
| IDataProtectionBuilder builder = services.AddConfiguredDataProtection(); | ||
| DataProtectionStorageOptions storageOptions = dataProtectionOptions.File; | ||
|
|
||
| if (storageOptions == null) | ||
| { | ||
| throw new InvalidOperationException($"{nameof(DataProtectionOptions)}:{nameof(dataProtectionOptions.File)} not set"); | ||
| } | ||
|
|
||
| if (storageOptions.Path == "auto") | ||
| { | ||
| storageOptions.Path = EnvironmentPath.CreatePath("key-store"); | ||
| } | ||
|
|
||
| DirectoryInfo directory = new DirectoryInfo(storageOptions.Path); | ||
| directory.Create(); | ||
|
|
||
| builder.PersistKeysToFileSystem( | ||
| directory | ||
| ); | ||
|
|
||
| return builder; | ||
| } | ||
|
|
||
| private static void ConfigureForCertificate(IDataProtectionBuilder builder, DataProtectionOptions dataProtectionOptions) | ||
| { | ||
| CertificateDataProtectionOptions certificateOptions = dataProtectionOptions.Certificate; | ||
|
|
||
| if (certificateOptions == null) | ||
| { | ||
| throw new InvalidOperationException($"{nameof(DataProtectionOptions)}:{nameof(dataProtectionOptions.Certificate)} not set"); | ||
| } | ||
|
|
||
| certificateOptions.Validate(); | ||
|
|
||
| X509Certificate2 certificate = new X509Certificate2(certificateOptions.CertificatePath, certificateOptions.Password); | ||
|
|
||
| builder.ProtectKeysWithCertificate( | ||
| certificate | ||
| ); | ||
| } | ||
|
|
||
| private static IDataProtectionBuilder AddConfiguredDataProtection(this IServiceCollection services) | ||
| { | ||
| return services.AddDataProtection(options => options.ApplicationDiscriminator = "financial-app"); | ||
| } | ||
| } | ||
|
|
||
| internal sealed class DataProtectionOptions | ||
| { | ||
| public DataProtectionProtectionType Protection { get; set; } = DataProtectionProtectionType.None; | ||
|
|
||
| public DataProtectionStorageOptions File { get;set; } | ||
| public CertificateDataProtectionOptions Certificate { get;set; } | ||
|
|
||
| public DataProtectionStorageOptions StorageOptions { get; set; } | ||
|
|
||
| public TimeSpan? Lifetime { get; set; } | ||
| } | ||
|
|
||
| internal sealed class DataProtectionStorageOptions | ||
| { | ||
| public string Path { get; set; } | ||
|
|
||
| public DataProtectionStorageType Type { get; set; } = DataProtectionStorageType.InMemory; | ||
| } | ||
|
|
||
| internal sealed class CertificateDataProtectionOptions | ||
| { | ||
| /// <summary> | ||
| /// Path to PFX certificate | ||
| /// </summary> | ||
| public string CertificatePath { get; set; } | ||
|
|
||
| public string Password { get; set; } | ||
|
|
||
| public void Validate() | ||
| { | ||
| if (String.IsNullOrEmpty(this.CertificatePath) || !File.Exists(this.CertificatePath)) | ||
| { | ||
| throw new InvalidOperationException($"Certificate path '{this.CertificatePath}' does not exist"); | ||
| } | ||
|
|
||
| if (String.IsNullOrEmpty(this.Password)) | ||
| { | ||
| throw new InvalidOperationException("No password has been given for certificate"); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| internal enum DataProtectionStorageType | ||
| { | ||
| InMemory, | ||
| File | ||
| } | ||
|
|
||
| internal enum DataProtectionProtectionType | ||
| { | ||
| None, | ||
| Certificate, | ||
| Windows | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // ****************************************************************************** | ||
| // © 2018 Sebastiaan Dammann | damsteen.nl | ||
| // | ||
| // File: : EnvironmentPath.cs | ||
| // Project : App | ||
| // ****************************************************************************** | ||
|
|
||
| namespace App.Support { | ||
| using System; | ||
| using System.IO; | ||
|
|
||
| public static class EnvironmentPath { | ||
| private const string AppSpecificFolder = "financial-app"; | ||
|
|
||
| public static string CreatePath(string subPath) | ||
| { | ||
| switch (Environment.OSVersion.Platform) | ||
| { | ||
| case PlatformID.Win32NT: | ||
| return MakeWin32FilePath(subPath); | ||
| case PlatformID.Unix: | ||
| return MakeUnixFilePath(subPath); | ||
|
|
||
| default: | ||
| throw new InvalidOperationException($"Unsupported platform family '{Environment.OSVersion.Platform}' of {Environment.OSVersion}"); | ||
| } | ||
| } | ||
|
|
||
| private static string MakeWin32FilePath(string subPath) | ||
| { | ||
| return Path.Combine( | ||
| Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData), | ||
| AppSpecificFolder, | ||
| subPath | ||
| ); | ||
| } | ||
|
|
||
| private static string MakeUnixFilePath(string subPath) | ||
| { | ||
| return Path.Combine( | ||
| "/etc", | ||
| AppSpecificFolder, | ||
| subPath | ||
| ); | ||
| } | ||
| } | ||
| } |