Feature: Bring your own font

API/API.csproj

@@ -190,6 +190,7 @@
   </ItemGroup>
 
   <ItemGroup>
+    <Folder Include="config\fonts\" />
     <Folder Include="config\themes" />
     <Content Include="EmailTemplates\**">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>

API/Controllers/FontController.cs

@@ -0,0 +1,72 @@
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using API.Data;
+using API.DTOs.Font;
+using API.Services;
+using API.Services.Tasks;
+using Kavita.Common;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace API.Controllers;
+
+public class FontController : BaseApiController
+{
+    private readonly IUnitOfWork _unitOfWork;
+    private readonly IFontService _fontService;
+    private readonly ITaskScheduler _taskScheduler;
+
+    public FontController(IUnitOfWork unitOfWork, IFontService fontService, ITaskScheduler taskScheduler)
+    {
+        _unitOfWork = unitOfWork;
+        _fontService = fontService;
+        _taskScheduler = taskScheduler;
+    }
+
+    [ResponseCache(CacheProfileName = "10Minute")]
+    [AllowAnonymous]
+    [HttpGet("GetFonts")]
+    public async Task<ActionResult<IEnumerable<EpubFontDto>>> GetFonts()
+    {
+        return Ok(await _unitOfWork.EpubFontRepository.GetFontDtos());
+    }
+
+    [AllowAnonymous]
+    [HttpGet("download-font")]
+    public async Task<IActionResult> GetFont(int fontId)
+    {
+        try
+        {
+            var font = await _unitOfWork.EpubFontRepository.GetFont(fontId);
+            if (font == null) return NotFound();
+            var contentType = GetContentType(font.FileName);
+            return File(await _fontService.GetContent(fontId), contentType, font.FileName);
+        }
+        catch (KavitaException ex)
+        {
+            return BadRequest(ex.Message);
+        }
+    }
+
+    [AllowAnonymous]
+    [HttpPost("scan")]
+    public IActionResult Scan()
+    {
+        _taskScheduler.ScanEpubFonts();
+        return Ok();
+    }
+
+    private string GetContentType(string fileName)
+    {
+        var extension = Path.GetExtension(fileName).ToLowerInvariant();
+        return extension switch
+        {
+            ".ttf" => "application/font-tff",
+            ".otf" => "application/font-otf",
+            ".woff" => "application/font-woff",
+            ".woff2" => "application/font-woff2",
+            _ => "application/octet-stream",
+        };
+    }
+}

API/DTOs/Font/EpubFontDto.cs

@@ -0,0 +1,13 @@
+using System;
+using API.Entities.Enums.Font;
+
+namespace API.DTOs.Font;
+
+public class EpubFontDto
+{
+    public int Id { get; set; }
+    public string Name { get; set; }
+    public FontProvider Provider { get; set; }
+    public DateTime Created { get; set; }
+    public DateTime LastModified { get; set; }
+}

API/Data/DataContext.cs

@@ -66,6 +66,7 @@ public DataContext(DbContextOptions options) : base(options)
     public DbSet<ManualMigrationHistory> ManualMigrationHistory { get; set; } = null!;
     public DbSet<SeriesBlacklist> SeriesBlacklist { get; set; } = null!;
     public DbSet<AppUserCollection> AppUserCollection { get; set; } = null!;
+    public DbSet<EpubFont> EpubFont { get; set; } = null!;
 
 
     protected override void OnModelCreating(ModelBuilder builder)