Core interfaces

Source/Contracts/ContentTransformations/IContentEncryptor.cs

@@ -0,0 +1,11 @@
+namespace EternalArrowBackup.Contracts.Encryption
+{
+    using System.Threading.Tasks;
+
+    public interface IContentEncryptor
+    {
+        Task<byte[]> Encrypt(byte[] originalData);
+
+        Task<byte[]> Decrypt(byte[] encryptedData);
+    }
+}

Source/Contracts/ContentTransformations/IContentHasher.cs

@@ -0,0 +1,9 @@
+namespace EternalArrowBackup.Contracts.ContentTransformations
+{
+    using System.Threading.Tasks;
+
+    public interface IContentHasher
+    {
+        Task<string> ComputeHash(byte[] content);
+    }
+}

Source/Contracts/EternalArrowBackup.Contracts.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>netstandard1.4</TargetFramework>

Source/Contracts/SourceStorage/ISourceDirectory.cs

@@ -0,0 +1,14 @@
+namespace EternalArrowBackup.Contracts.SourceStorage
+{
+    using System;
+    using System.Threading.Tasks;
+
+    public interface ISourceDirectory
+    {
+        string NormalizedRelativePath { get; }
+
+        Task<ISourceFile> GetFile(string filename);
+
+        IObservable<ISourceFile> GetAllFiles();
+    }
+}

Source/Contracts/SourceStorage/ISourceFile.cs

@@ -0,0 +1,13 @@
+namespace EternalArrowBackup.Contracts.SourceStorage
+{
+    using System.Threading.Tasks;
+
+    public interface ISourceFile
+    {
+        string Filename { get; }
+
+        long Size { get; }
+
+        Task<byte[]> ReadContents();
+    }
+}

Source/Contracts/SourceStorage/ISourceStorage.cs

@@ -0,0 +1,12 @@
+namespace EternalArrowBackup.Contracts.SourceStorage
+{
+    using System;
+    using System.Threading.Tasks;
+
+    public interface ISourceStorage
+    {
+        Task<ISourceDirectory> GetDirectory(string normalizedRelativePath);
+
+        IObservable<ISourceDirectory> GetAllDirectories();
+    }
+}

Source/Contracts/TargetStorage/ITargetDirectory.cs

@@ -0,0 +1,14 @@
+namespace EternalArrowBackup.Contracts.TargetStorage
+{
+    using System;
+    using System.Threading.Tasks;
+
+    public interface ITargetDirectory
+    {
+        Task UploadFile(string filename, byte[] content, string hash);
+
+        Task<ITargetFile> GetFile(string filename, string hash);
+
+        IObservable<ITargetFile> GetAllFiles();
+    }
+}

Source/Contracts/TargetStorage/ITargetFile.cs

@@ -0,0 +1,18 @@
+namespace EternalArrowBackup.Contracts.TargetStorage
+{
+    using System;
+    using System.Threading.Tasks;
+
+    public interface ITargetFile
+    {
+        string Filename { get; }
+
+        string Hash { get; }
+
+        DateTime UploadDate { get; }
+
+        long Size { get; }
+
+        Task<byte[]> RetrieveContents();
+    }
+}

Source/Contracts/TargetStorage/ITargetStorage.cs

@@ -0,0 +1,9 @@
+namespace EternalArrowBackup.Contracts.TargetStorage
+{
+    using System.Threading.Tasks;
+
+    public interface ITargetStorage
+    {
+        Task<ITargetDirectory> GetDirectory(string normalizedRelativePath);
+    }
+}

Source/Contracts/TargetStorage/ITargetStorageForRecovery.cs

@@ -0,0 +1,9 @@
+namespace EternalArrowBackup.Contracts.TargetStorage
+{
+    using System;
+
+    public interface ITargetStorageForRecovery
+    {
+        IObservable<ITargetDirectory> GetAllDirectories();
+    }
+}