feat: implement read and write methods for json file storage provider

2026-03-29 20:46:45 -05:00
parent b41669cbc6
commit 38daead9b2
12 changed files with 266 additions and 6 deletions
@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>netstandard2.1</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <LangVersion>latest</LangVersion>
+    <IsAotCompatible Condition="$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">true</IsAotCompatible>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="System.Text.Json" Version="10.0.5" />
+  </ItemGroup>
+
+</Project>
@@ -0,0 +1,56 @@
+using System.Text.Json;
+
+namespace StevanFreeborn.Extensions.Configuration.Secure.Storage;
+
+public sealed class JsonFileStorageProvider(JsonStorageOptions options)
+{
+  private static readonly JsonSerializerOptions JsonOptions = new()
+  {
+    WriteIndented = true,
+  };
+  private readonly JsonStorageOptions _options = options
+    ?? throw new ArgumentNullException(nameof(options));
+
+  public async Task<string> ReadAsync(string key, CancellationToken ct = default)
+  {
+    if (File.Exists(_options.FullPath) is false)
+    {
+      return string.Empty;
+    }
+
+    using var stream = new FileStream(_options.FullPath, FileMode.Open, FileAccess.Read);
+
+    if (stream.Length is 0)
+    {
+      return string.Empty;
+    }
+
+    var data = await JsonSerializer.DeserializeAsync<Dictionary<string, string>>(stream, cancellationToken: ct);
+
+    if (data is not null && data.TryGetValue(key, out var v))
+    {
+      return v;
+    }
+
+    return string.Empty;
+  }
+
+  public async Task WriteAsync(string key, string encryptedData, CancellationToken ct = default)
+  {
+    Directory.CreateDirectory(_options.DirectoryPath);
+
+    var data = new Dictionary<string, string>
+    {
+      [key] = encryptedData
+    };
+
+    using var stream = new FileStream(
+      _options.FullPath,
+      FileMode.Create,
+      FileAccess.Write,
+      FileShare.None
+    );
+
+    await JsonSerializer.SerializeAsync(stream, data, JsonOptions, ct);
+  }
+}
@@ -0,0 +1,8 @@
+namespace StevanFreeborn.Extensions.Configuration.Secure.Storage;
+
+public sealed class JsonStorageOptions
+{
+  public string FileName { get; set; } = string.Empty;
+  public string DirectoryPath { get; set; } = AppContext.BaseDirectory;
+  public string FullPath => Path.Combine(DirectoryPath, FileName);
+}