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Rearranged repo to make room for additional projects

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Cameron
2024-09-07 20:31:54 -05:00
parent 7479dbf8f8
commit 0082a6f219
50 changed files with 92 additions and 1 deletions
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24
ComiServ/ComiServ.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>net8.0</TargetFramework>
<Nullable>enable</Nullable>
<ImplicitUsings>enable</ImplicitUsings>
<GenerateDocumentationFile>true</GenerateDocumentationFile>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="8.0.8" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.8" />
<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.8">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="8.0.4" />
<PackageReference Include="SharpCompress" Version="0.37.2" />
<PackageReference Include="SixLabors.ImageSharp" Version="3.1.5" />
<PackageReference Include="Swashbuckle.AspNetCore" Version="6.7.1" />
<PackageReference Include="System.IO.Hashing" Version="8.0.0" />
</ItemGroup>
</Project>

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ComiServ/ComicsContext.cs Normal file
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using Microsoft.EntityFrameworkCore;
using ComiServ.Entities;
namespace ComiServ;
public class ComicsContext : DbContext
{
//TODO is this the best place for this to live?
public const int HANDLE_LENGTH = 12;
//relies on low probability of repeat handles in a short period of time
//duplicate handles could be created before either of them are commited
public string CreateHandle()
{
char ToChar(int i)
{
if (i < 10)
return (char)('0' + i);
if (i - 10 + 'A' < 'O')
return (char)('A' + i - 10);
else
//skip 'O'
return (char)('A' + i - 9);
}
string handle = "";
do
{
handle = string.Join("", Enumerable.Repeat(0, HANDLE_LENGTH)
.Select(_ => ToChar(Random.Shared.Next(0, 35))));
} while (Comics.Any(c => c.Handle == handle));
return handle;
}
public DbSet<Comic> Comics { get; set; }
public DbSet<ComicTag> ComicTags { get; set; }
public DbSet<Tag> Tags { get; set; }
public DbSet<ComicAuthor> ComicAuthors { get; set; }
public DbSet<Author> Authors { get; set; }
public DbSet<Cover> Covers { get; set; }
public DbSet<User> Users { get; set; }
public DbSet<UserType> UserTypes { get; set; }
public DbSet<ComicRead> ComicsRead { get; set; }
public ComicsContext(DbContextOptions<ComicsContext> options)
: base(options)
{
}
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity<Comic>().ToTable("Comics");
modelBuilder.Entity<ComicTag>().ToTable("ComicTags");
modelBuilder.Entity<Tag>().ToTable("Tags");
modelBuilder.Entity<ComicAuthor>().ToTable("ComicAuthors");
modelBuilder.Entity<Author>().ToTable("Authors");
modelBuilder.Entity<Cover>().ToTable("Covers");
modelBuilder.Entity<User>().ToTable("Users");
modelBuilder.Entity<UserType>().ToTable("UserTypes")
.HasData(
Enum.GetValues(typeof(UserTypeEnum))
.Cast<UserTypeEnum>()
.Select(e => new UserType()
{
Id = e,
Name = e.ToString()
})
);
}
/// <summary>
/// puts a user-provided handle into the proper form
/// </summary>
/// <param name="handle"></param>
/// <returns>formatted handle or null if invalid</returns>
public static string? CleanValidateHandle(string? handle)
{
if (handle is null)
return null;
handle = handle.Trim();
if (handle.Length != HANDLE_LENGTH)
return null;
return handle.ToUpper();
}
}

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ComiServ/Controllers/ComicController.cs Normal file
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using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using ComiServ.Models;
using System.Linq;
using System.Reflection;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Migrations;
using ComiServ.Entities;
using ComiServ.Background;
using System.ComponentModel;
using ComiServ.Extensions;
using System.Runtime.InteropServices;
using ComiServ.Services;
using System.Security.Cryptography.X509Certificates;
using System.Data;
using SQLitePCL;
namespace ComiServ.Controllers;
[Route(ROUTE)]
[ApiController]
public class ComicController(ComicsContext context, ILogger<ComicController> logger, IConfigService config, IComicAnalyzer analyzer, IPictureConverter converter, IAuthenticationService _auth)
: ControllerBase
{
public const string ROUTE = "/api/v1/comics";
private readonly ComicsContext _context = context;
private readonly ILogger<ComicController> _logger = logger;
private readonly Configuration _config = config.Config;
private readonly IComicAnalyzer _analyzer = analyzer;
private readonly IPictureConverter _converter = converter;
private readonly IAuthenticationService _auth = _auth;
//TODO search parameters
[HttpGet]
[ProducesResponseType<Paginated<ComicData>>(StatusCodes.Status200OK)]
public async Task<IActionResult> SearchComics(
[FromQuery(Name = "title")]
string? titleSearch,
[FromQuery(Name = "description")]
string? descSearch,
[FromQuery]
string[] authors,
[FromQuery]
string[] tags,
[FromQuery]
string? pages,
[FromQuery(Name = "hash")]
string? xxhash64Hex,
[FromQuery]
bool? exists,
[FromQuery]
[DefaultValue(null)]
bool? read,
[FromQuery]
[DefaultValue(0)]
int page,
[FromQuery]
[DefaultValue(20)]
int pageSize
)
{
var results = _context.Comics
.Include("ComicAuthors.Author")
.Include("ComicTags.Tag");
if (exists is not null)
{
results = results.Where(c => c.Exists == exists);
}
string username;
if (_auth.User is null)
{
return Unauthorized(RequestError.NotAuthenticated);
}
if (read is bool readStatus)
{
if (readStatus)
results = results.Where(c => c.ReadBy.Any(u => EF.Functions.Like(_auth.User.Username, u.User.Username)));
else
results = results.Where(c => c.ReadBy.All(u => !EF.Functions.Like(_auth.User.Username, u.User.Username)));
}
foreach (var author in authors)
{
results = results.Where(c => c.ComicAuthors.Any(ca => EF.Functions.Like(ca.Author.Name, author)));
}
foreach (var tag in tags)
{
results = results.Where(c => c.ComicTags.Any(ct => EF.Functions.Like(ct.Tag.Name, tag)));
}
if (pages is not null)
{
pages = pages.Trim();
if (pages.StartsWith("<="))
{
var pageMax = int.Parse(pages.Substring(2));
results = results.Where(c => c.PageCount <= pageMax);
}
else if (pages.StartsWith('<'))
{
var pageMax = int.Parse(pages.Substring(1));
results = results.Where(c => c.PageCount < pageMax);
}
else if (pages.StartsWith(">="))
{
var pageMin = int.Parse(pages.Substring(2));
results = results.Where(c => c.PageCount >= pageMin);
}
else if (pages.StartsWith('>'))
{
var pageMin = int.Parse(pages.Substring(1));
results = results.Where(c => c.PageCount > pageMin);
}
else
{
if (pages.StartsWith('='))
pages = pages.Substring(1);
var pageExact = int.Parse(pages);
results = results.Where(c => c.PageCount == pageExact);
}
}
if (xxhash64Hex is not null)
{
xxhash64Hex = xxhash64Hex.Trim().ToUpper();
if (!xxhash64Hex.All(c => (c >= '0' && c <= '9') || (c >= 'A' && c <= 'F')))
return BadRequest();
Int64 hash = 0;
foreach (char c in xxhash64Hex)
{
if (c >= '0' && c <= '9')
hash = hash * 16 + (c - '0');
else if (c >= 'A' && c <= 'F')
hash = hash * 16 + (c - 'A' + 10);
else
throw new ArgumentException("Invalid hex character bypassed filter");
}
results = results.Where(c => c.FileXxhash64 == hash);
}
if (titleSearch is not null)
{
titleSearch = titleSearch.Trim();
results = results.Where(c => EF.Functions.Like(c.Title, $"%{titleSearch}%"));
}
if (descSearch is not null)
{
descSearch = descSearch.Trim();
results = results.Where(c => EF.Functions.Like(c.Description, $"%{descSearch}%"));
}
int offset = page * pageSize;
return Ok(await Paginated<ComicData>.CreateAsync(pageSize, page, results
.OrderBy(c => c.Id)
.Select(c => new ComicData(c))));
}
[HttpDelete]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<IActionResult> DeleteComicsThatDontExist()
{
var search = _context.Comics.Where(c => !c.Exists);
var nonExtant = await search.ToListAsync();
search.ExecuteDelete();
_context.SaveChanges();
return Ok(search.Select(c => new ComicData(c)));
}
[HttpGet("{handle}")]
[ProducesResponseType<ComicData>(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> GetSingleComicInfo(string handle)
{
//_logger.LogInformation("GetSingleComicInfo: {handle}", handle);
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await _context.Comics
.Include("ComicAuthors.Author")
.Include("ComicTags.Tag")
.SingleOrDefaultAsync(c => c.Handle == handle);
if (comic is Comic actualComic)
return Ok(new ComicData(comic));
else
return NotFound(RequestError.ComicNotFound);
}
[HttpPatch("{handle}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> UpdateComicMetadata(string handle, [FromBody] ComicMetadataUpdateRequest metadata)
{
if (handle.Length != ComicsContext.HANDLE_LENGTH)
return BadRequest(RequestError.InvalidHandle);
var comic = await _context.Comics.SingleOrDefaultAsync(c => c.Handle == handle);
if (comic is Comic actualComic)
{
if (metadata.Title != null)
actualComic.Title = metadata.Title;
if (metadata.Authors is List<string> authors)
{
//make sure all authors exist, without changing Id of pre-existing authors
_context.InsertOrIgnore(authors.Select(author => new Author() { Name = author }), ignorePrimaryKey: true);
//get the Id of needed authors
var authorEntities = await _context.Authors.Where(a => authors.Contains(a.Name)).ToListAsync();
//delete existing author mappings
_context.ComicAuthors.RemoveRange(_context.ComicAuthors.Where(ca => ca.Comic.Id == comic.Id));
//add all author mappings
_context.ComicAuthors.AddRange(authorEntities.Select(a => new ComicAuthor { Comic = comic, Author = a }));
}
if (metadata.Tags is List<string> tags)
{
//make sure all tags exist, without changing Id of pre-existing tags
_context.InsertOrIgnore(tags.Select(t => new Tag() { Name = t }), ignorePrimaryKey: true);
//get the needed tags
var tagEntities = await _context.Tags.Where(t => tags.Contains(t.Name)).ToListAsync();
//delete existing tag mappings
_context.ComicTags.RemoveRange(_context.ComicTags.Where(ta => ta.Comic.Id == comic.Id));
//add all tag mappings
_context.ComicTags.AddRange(tagEntities.Select(t => new ComicTag { Comic = comic, Tag = t }));
}
await _context.SaveChangesAsync();
return Ok();
}
else
return NotFound(RequestError.ComicNotFound);
}
[HttpPatch("{handle}/markread")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
public async Task<IActionResult> MarkComicAsRead(
ComicsContext context,
string handle)
{
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await context.Comics.SingleOrDefaultAsync(c => c.Handle == validated);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
if (_auth.User is null)
//user shouldn't have passed authentication if username doesn't match
return StatusCode(StatusCodes.Status500InternalServerError);
var comicRead = new ComicRead()
{
UserId = _auth.User.Id,
ComicId = comic.Id
};
context.InsertOrIgnore(comicRead, ignorePrimaryKey: false);
await context.SaveChangesAsync();
return Ok();
}
[HttpPatch("{handle}/markunread")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
public async Task<IActionResult> MarkComicAsUnread(
ComicsContext context,
string handle)
{
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await context.Comics.SingleOrDefaultAsync(c => c.Handle == validated);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
if (_auth.User is null)
//user shouldn't have passed authentication if username doesn't match
return StatusCode(StatusCodes.Status500InternalServerError);
var comicRead = await context.ComicsRead.SingleOrDefaultAsync(cr =>
cr.ComicId == comic.Id && cr.UserId == _auth.User.Id);
if (comicRead is null)
return Ok();
context.ComicsRead.Remove(comicRead);
await context.SaveChangesAsync();
return Ok();
}
[HttpDelete("{handle}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> DeleteComic(
string handle,
[FromBody]
ComicDeleteRequest req)
{
if (_auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (_auth.User.UserTypeId != UserTypeEnum.Administrator)
return Forbid();
var comic = await _context.Comics.SingleOrDefaultAsync(c => c.Handle == handle);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
comic.Exists = _analyzer.ComicFileExists(string.Join(config.Config.LibraryRoot, comic.Filepath));
if (comic.Exists && !req.DeleteIfFileExists)
return BadRequest(RequestError.ComicFileExists);
_context.Comics.Remove(comic);
await _context.SaveChangesAsync();
_analyzer.DeleteComicFile(string.Join(config.Config.LibraryRoot, comic.Filepath));
return Ok();
}
[HttpGet("{handle}/file")]
[ProducesResponseType<byte[]>(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> GetComicFile(string handle)
{
//_logger.LogInformation(nameof(GetComicFile) + ": {handle}", handle);
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await _context.Comics.SingleOrDefaultAsync(c => c.Handle == handle);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
var data = await System.IO.File.ReadAllBytesAsync(Path.Join(_config.LibraryRoot, comic.Filepath));
return File(data, "application/octet-stream", new FileInfo(comic.Filepath).Name);
}
[HttpGet("{handle}/cover")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> GetComicCover(string handle)
{
//_logger.LogInformation(nameof(GetComicCover) + ": {handle}", handle);
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await _context.Comics
.SingleOrDefaultAsync(c => c.Handle == validated);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
var cover = await _context.Covers
.SingleOrDefaultAsync(cov => cov.FileXxhash64 == comic.FileXxhash64);
if (cover is null)
return NotFound(RequestError.CoverNotFound);
var mime = IComicAnalyzer.GetImageMime(cover.Filename);
if (mime is null)
return File(cover.CoverFile, "application/octet-stream", cover.Filename);
return File(cover.CoverFile, mime);
}
[HttpGet("{handle}/page/{page}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> GetComicPage(string handle, int page,
[FromQuery]
[DefaultValue(0)]
int? maxWidth,
[FromQuery]
[DefaultValue(0)]
int? maxHeight,
[FromQuery]
[DefaultValue(null)]
PictureFormats? format)
{
//_logger.LogInformation(nameof(GetComicPage) + ": {handle} {page}", handle, page);
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await _context.Comics.SingleOrDefaultAsync(c => c.Handle == validated);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
var comicPage = await _analyzer.GetComicPageAsync(Path.Join(_config.LibraryRoot, comic.Filepath), page);
if (comicPage is null)
//TODO rethink error code
return NotFound(RequestError.PageNotFound);
var limitWidth = maxWidth ?? -1;
var limitHeight = maxHeight ?? -1;
if (maxWidth > 0 || maxHeight > 0 || format is not null)
{
//TODO this copy is not strictly necessary, but avoiding it would mean keeping the comic file
//open after GetComicPage returns to keep the stream. Not unreasonable (that's what IDisposable
//is for) but need to be careful.
using var stream = new MemoryStream(comicPage.Data);
System.Drawing.Size limit = new(
limitWidth > 0 ? limitWidth : int.MaxValue,
limitHeight > 0 ? limitHeight : int.MaxValue
);
string mime = format switch
{
PictureFormats f => IPictureConverter.GetMime(f),
null => comicPage.Mime,
};
//TODO using the stream directly throws but I think it should be valid, need to debug
using var resizedStream = await _converter.ResizeIfBigger(stream, limit, format);
var arr = await resizedStream.ReadAllBytesAsync();
return File(arr, mime);
}
else
return File(comicPage.Data, comicPage.Mime);
}
[HttpGet("{handle}/thumbnail")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType<RequestError>(StatusCodes.Status404NotFound)]
public async Task<IActionResult> GetComicThumbnail(
string handle,
[FromQuery]
[DefaultValue(false)]
//if thumbnail doesn't exist, try to find a cover
bool fallbackToCover)
{
RequestError accErrors = new();
var validated = ComicsContext.CleanValidateHandle(handle);
if (validated is null)
return BadRequest(RequestError.InvalidHandle);
var comic = await _context.Comics.SingleOrDefaultAsync(c => c.Handle == validated);
if (comic is null)
return NotFound(RequestError.ComicNotFound);
if (comic.ThumbnailWebp is byte[] img)
{
return File(img, "application/webp");
}
if (fallbackToCover)
{
var cover = await _context.Covers.SingleOrDefaultAsync(c => c.FileXxhash64 == comic.FileXxhash64);
if (cover is not null)
{
//TODO should this convert to a thumbnail on the fly?
return File(cover.CoverFile, IComicAnalyzer.GetImageMime(cover.Filename) ?? "application/octet-stream");
}
accErrors = accErrors.And(RequestError.CoverNotFound);
}
return NotFound(RequestError.ThumbnailNotFound.And(accErrors));
}
[HttpPost("cleandb")]
[ProducesResponseType(StatusCodes.Status200OK)]
public async Task<IActionResult> CleanUnusedTagAuthors()
{
await _context.Authors
.Include(a => a.ComicAuthors)
.Where(a => a.ComicAuthors.Count == 0)
.ExecuteDeleteAsync();
await _context.Tags
.Include(a => a.ComicTags)
.Where(a => a.ComicTags.Count == 0)
.ExecuteDeleteAsync();
//ExecuteDelete doesn't wait for SaveChanges
//_context.SaveChanges();
return Ok();
}
[HttpGet("duplicates")]
[ProducesResponseType<Paginated<ComicDuplicateList>>(StatusCodes.Status200OK)]
public async Task<IActionResult> GetDuplicateFiles(
[FromQuery]
[DefaultValue(0)]
int page,
[FromQuery]
[DefaultValue(20)]
int pageSize)
{
var groups = _context.Comics
.Include("ComicAuthors.Author")
.Include("ComicTags.Tag")
.GroupBy(c => c.FileXxhash64)
.Where(g => g.Count() > 1)
.OrderBy(g => g.Key);
var ret = await Paginated<ComicDuplicateList>.CreateAsync(pageSize, page,
groups.Select(g =>
new ComicDuplicateList(g.Key, g.Select(g => g))
));
return Ok(ret);
}
[HttpGet("library")]
[ProducesResponseType<LibraryResponse>(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> GetLibraryStats()
{
return Ok(new LibraryResponse(
await _context.Comics.CountAsync(),
await _context.Comics.Select(c => c.FileXxhash64).Distinct().CountAsync()
));
}
}

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using Microsoft.EntityFrameworkCore;
using ComiServ.Entities;
using Microsoft.AspNetCore.Mvc;
using ComiServ.Services;
using ComiServ.Background;
using ComiServ.Models;
using System.ComponentModel;
namespace ComiServ.Controllers;
[Route(ROUTE)]
[ApiController]
public class MiscController(ComicsContext context, ILogger<MiscController> logger, IConfigService config, IAuthenticationService auth)
: ControllerBase
{
public const string ROUTE = "/api/v1/";
ComicsContext _context = context;
ILogger<MiscController> _logger = logger;
IConfigService _config = config;
IAuthenticationService _auth = auth;
[HttpGet("authors")]
[ProducesResponseType<Paginated<AuthorResponse>>(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> GetAuthors(
[FromQuery]
[DefaultValue(0)]
int page,
[FromQuery]
[DefaultValue(20)]
int pageSize
)
{
if (_auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (_auth.User.UserTypeId != UserTypeEnum.Administrator)
return Forbid();
var items = _context.Authors
.OrderBy(a => a.ComicAuthors.Count())
.Select(a => new AuthorResponse(a.Name, a.ComicAuthors.Count()));
return Ok(await Paginated<AuthorResponse>.CreateAsync(pageSize, page, items));
}
[HttpGet("tags")]
[ProducesResponseType<Paginated<TagResponse>>(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> GetTags(
[FromQuery]
[DefaultValue(0)]
int page,
[FromQuery]
[DefaultValue(20)]
int pageSize
)
{
if (_auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (_auth.User.UserTypeId != UserTypeEnum.Administrator)
return Forbid();
var items = _context.Tags
.OrderBy(t => t.ComicTags.Count())
.Select(t => new TagResponse(t.Name, t.ComicTags.Count()));
return Ok(await Paginated<TagResponse>.CreateAsync(pageSize, page, items));
}
}

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using ComiServ.Background;
using ComiServ.Models;
using ComiServ.Services;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using System.ComponentModel;
using System.Security.Policy;
namespace ComiServ.Controllers;
[Route(ROUTE)]
[ApiController]
public class TaskController(
ComicsContext context
,ITaskManager manager
,IComicScanner scanner
,ILogger<TaskController> logger
) : ControllerBase
{
public const string ROUTE = "/api/v1/tasks";
private readonly ComicsContext _context = context;
private readonly ITaskManager _manager = manager;
private readonly IComicScanner _scanner = scanner;
private readonly ILogger<TaskController> _logger = logger;
private readonly CancellationTokenSource cancellationToken = new();
[HttpGet]
[ProducesResponseType<Truncated<string>>(StatusCodes.Status200OK)]
public IActionResult GetTasks(
[FromQuery]
[DefaultValue(20)]
int limit
)
{
return Ok(new Truncated<string>(limit, _manager.GetTasks(limit+1)));
}
[HttpPost("scan")]
[ProducesResponseType(StatusCodes.Status200OK)]
public IActionResult StartScan()
{
_scanner.TriggerLibraryScan();
return Ok();
}
[HttpPost("cancelall")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public IActionResult CancelAllTasks(Services.IAuthenticationService auth, ITaskManager manager)
{
if (auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (auth.User.UserTypeId != Entities.UserTypeEnum.Administrator)
return Forbid();
manager.CancelAll();
return Ok();
}
}

152
ComiServ/Controllers/UserController.cs Normal file
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using ComiServ.Entities;
using ComiServ.Models;
using ComiServ.Services;
using Microsoft.AspNetCore.Http.HttpResults;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using System.ComponentModel;
using System.Text;
namespace ComiServ.Controllers;
[Route(ROUTE)]
[ApiController]
public class UserController
: ControllerBase
{
public const string ROUTE = "/api/v1/users";
[HttpGet]
[ProducesResponseType<Paginated<UserDescription>>(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> GetUsers(IAuthenticationService auth,
ComicsContext context,
[FromQuery]
[DefaultValue(null)]
string? search,
[FromQuery]
[DefaultValue(null)]
UserTypeEnum? type,
[FromQuery]
[DefaultValue(0)]
int page,
[FromQuery]
[DefaultValue(20)]
int pageSize)
{
if (auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (auth.User.UserTypeId != UserTypeEnum.Administrator)
return Forbid();
IQueryable<User> users = context.Users;
if (type is UserTypeEnum t)
users = users.Where(u => u.UserTypeId == t);
if (!string.IsNullOrWhiteSpace(search))
users = users.Where(u => EF.Functions.Like(u.Username, $"%{search}%"));
return Ok(await Paginated<UserDescription>.CreateAsync(pageSize, page, users
.Include(u => u.UserType)
.Select(u => new UserDescription(u.Username, u.UserType.Name))));
}
[HttpPost("create")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType<RequestError>(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> AddUser(IAuthenticationService auth,
ComicsContext context,
[FromBody]
UserCreateRequest req)
{
if (auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (auth.User.UserTypeId != UserTypeEnum.Administrator)
return Forbid();
var salt = Entities.User.MakeSalt();
var bPass = Encoding.UTF8.GetBytes(req.Password);
var newUser = new Entities.User()
{
Username = req.Username,
Salt = salt,
HashedPassword = Entities.User.Hash(password: bPass, salt: salt),
UserTypeId = req.UserType
};
context.Users.Add(newUser);
await context.SaveChangesAsync();
return Ok();
}
[HttpDelete("delete")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status400BadRequest)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> DeleteUser(IAuthenticationService auth,
ComicsContext context,
[FromBody]
string username)
{
if (auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
if (auth.User.UserTypeId != UserTypeEnum.Administrator)
return Forbid();
username = username.Trim();
var user = await context.Users.SingleOrDefaultAsync(u => EF.Functions.Like(u.Username, $"{username}"));
if (user is null)
return BadRequest();
context.Users.Remove(user);
await context.SaveChangesAsync();
return Ok();
}
[HttpPost("modify")]
[ProducesResponseType<RequestError>(StatusCodes.Status400BadRequest)]
[ProducesResponseType(StatusCodes.Status401Unauthorized)]
[ProducesResponseType(StatusCodes.Status403Forbidden)]
public async Task<IActionResult> ModifyUser(IAuthenticationService auth,
ComicsContext context,
[FromBody]
UserModifyRequest req)
{
//must be authenticated
if (auth.User is null)
{
HttpContext.Response.Headers.WWWAuthenticate = "Basic";
return Unauthorized(RequestError.NoAccess);
}
req.Username = req.Username.Trim();
//must be an admin or changing own username
if (!req.Username.Equals(auth.User.Username, StringComparison.CurrentCultureIgnoreCase)
&& auth.User.UserTypeId != UserTypeEnum.Administrator)
{
return Forbid();
}
//only admins can change user type
if (auth.User.UserTypeId != UserTypeEnum.Administrator
&& req.NewUserType is not null)
{
return Forbid();
}
var user = await context.Users
.SingleOrDefaultAsync(u => EF.Functions.Like(u.Username, req.Username));
if (user is null)
{
return BadRequest(RequestError.UserNotFound);
}
if (req.NewUsername is not null)
{
user.Username = req.NewUsername.Trim();
}
if (req.NewUserType is UserTypeEnum nut)
{
user.UserTypeId = nut;
}
await context.SaveChangesAsync();
return Ok();
}
}

12
ComiServ/Controllers/WebappController.cs Normal file
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using Microsoft.AspNetCore.Mvc;
namespace ComiServ.Controllers
{
[Route("app")]
[Controller]
public class WebappController
: ControllerBase
{
}
}

16
ComiServ/Entities/Author.cs Normal file
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using Microsoft.EntityFrameworkCore;
using Swashbuckle.AspNetCore.Annotations;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
//using System.ComponentModel.DataAnnotations.Schema;
namespace ComiServ.Entities;
[Index(nameof(Name), IsUnique = true)]
public class Author
{
public int Id { get; set; }
[Required]
public string Name { get; set; } = null!;
public ICollection<ComicAuthor> ComicAuthors { get; set; } = null!;
}

34
ComiServ/Entities/Comic.cs Normal file
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using ComiServ.Controllers;
using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace ComiServ.Entities;
[Index(nameof(Handle), IsUnique = true)]
[Index(nameof(Filepath), IsUnique = true)]
public class Comic
{
public int Id { get; set; }
public bool Exists { get; set; }
//id exposed through the API
[Required]
[StringLength(ComicsContext.HANDLE_LENGTH)]
public string Handle { get; set; } = null!;
[Required]
public string Filepath { get; set; } = null!;
[Required]
public string Title { get; set; } = null!;
[Required]
public string Description { get; set; } = null!;
public int PageCount { get; set; }
public long SizeBytes { get; set; }
public long FileXxhash64 { get; set; }
public byte[]? ThumbnailWebp { get; set; }
[InverseProperty("Comic")]
public ICollection<ComicTag> ComicTags { get; set; } = [];
[InverseProperty("Comic")]
public ICollection<ComicAuthor> ComicAuthors { get; set; } = [];
[InverseProperty("Comic")]
public ICollection<ComicRead> ReadBy { get; set; } = [];
}

20
ComiServ/Entities/ComicAuthor.cs Normal file
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using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace ComiServ.Entities;
[PrimaryKey("ComicId", "AuthorId")]
[Index("ComicId")]
[Index("AuthorId")]
public class ComicAuthor
{
[ForeignKey(nameof(Comic))]
public int ComicId { get; set; }
[Required]
public Comic Comic { get; set; } = null!;
[ForeignKey(nameof(Author))]
public int AuthorId { get; set; }
[Required]
public Author Author { get; set; } = null!;
}

15
ComiServ/Entities/ComicRead.cs Normal file
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using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations.Schema;
namespace ComiServ.Entities;
[PrimaryKey(nameof(UserId), nameof(ComicId))]
[Index(nameof(UserId))]
[Index(nameof(ComicId))]
public class ComicRead
{
public int UserId { get; set; }
public User User { get; set; }
public int ComicId { get; set; }
public Comic Comic { get; set; }
}

14
ComiServ/Entities/ComicTag.cs Normal file
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using Microsoft.EntityFrameworkCore;
namespace ComiServ.Entities;
[PrimaryKey("ComicId", "TagId")]
[Index("ComicId")]
[Index("TagId")]
public class ComicTag
{
public int ComicId { get; set; }
public Comic Comic { get; set; } = null!;
public int TagId { get; set; }
public Tag Tag { get; set; } = null!;
}

11
ComiServ/Entities/Cover.cs Normal file
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using Microsoft.EntityFrameworkCore;
namespace ComiServ.Entities;
[PrimaryKey("FileXxhash64")]
public class Cover
{
public long FileXxhash64 { get; set; }
public string Filename { get; set; } = null!;
public byte[] CoverFile { get; set; } = null!;
}

36
ComiServ/Entities/EntitySwaggerFilter.cs Normal file
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using Microsoft.EntityFrameworkCore.Metadata.Internal;
using Microsoft.OpenApi.Models;
using Swashbuckle.AspNetCore.SwaggerGen;
namespace ComiServ.Entities;
/// <summary>
/// This was originally made to remove Entity types that were being added to the Swagger schema.
/// I found that there was a bug in `ProducesResponseTypeAttribute` that caused it, and this is
/// no longer necessary. I changed Apply to a nop but am keeping this around as an example and
/// in case I actually need something like this in the future.
/// </summary>
public class EntitySwaggerFilter : ISchemaFilter
{
public readonly static string[] FILTER = [
nameof(Author),
nameof(Comic),
nameof(ComicAuthor),
nameof(ComicTag),
nameof(Cover),
nameof(Tag),
nameof(User),
nameof(UserType)
];
public void Apply(OpenApiSchema schema, SchemaFilterContext context)
{
return;
//foreach (var item in context.SchemaRepository.Schemas.Keys)
//{
// if (FILTER.Contains(item))
// {
// context.SchemaRepository.Schemas.Remove(item);
// }
//}
}
}

15
ComiServ/Entities/Tag.cs Normal file
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using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace ComiServ.Entities;
[Index(nameof(Name), IsUnique = true)]
public class Tag
{
//[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
[Required]
public string Name { get; set; } = null!;
public ICollection<ComicTag> ComicTags { get; set; } = null!;
}

37
ComiServ/Entities/User.cs Normal file
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using Microsoft.EntityFrameworkCore;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Security.Cryptography;
namespace ComiServ.Entities;
[PrimaryKey(nameof(Id))]
[Index(nameof(Username), IsUnique = true)]
public class User
{
public const int HashLengthBytes = 512 / 8;
public const int SaltLengthBytes = HashLengthBytes;
public int Id { get; set; }
[MaxLength(20)]
public string Username { get; set; }
[MaxLength(SaltLengthBytes)]
public byte[] Salt { get; set; }
[MaxLength(HashLengthBytes)]
public byte[] HashedPassword { get; set; }
public UserType UserType { get; set; }
public UserTypeEnum UserTypeId { get; set; }
[InverseProperty("User")]
public ICollection<ComicRead> ComicsRead { get; set; } = [];
//cryptography should probably be in a different class
public static byte[] MakeSalt()
{
byte[] arr = new byte[SaltLengthBytes];
RandomNumberGenerator.Fill(new Span<byte>(arr));
return arr;
}
public static byte[] Hash(byte[] password, byte[] salt)
{
var salted = salt.Append((byte)':').Concat(password).ToArray();
return SHA512.HashData(salted);
}
}

27
ComiServ/Entities/UserType.cs Normal file
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using System.ComponentModel.DataAnnotations;
using System.Text.Json.Serialization;
namespace ComiServ.Entities;
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum UserTypeEnum
{
//important that this is 0 as a safety precaution,
//in case it's accidentally left as default
Invalid = 0,
//can create accounts
Administrator = 1,
//has basic access
User = 2,
//authenticates but does not give access
Restricted = 3,
//refuses to authenticate but maintains records
Disabled = 4,
}
public class UserType
{
public UserTypeEnum Id { get; set; }
[MaxLength(26)]
public string Name { get; set; }
public ICollection<User> Users { get; set; }
}

61
ComiServ/Extensions/DatabaseExtensions.cs Normal file
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using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.ChangeTracking;
using System.Runtime.CompilerServices;
//https://stackoverflow.com/a/42467710/25956209
//https://archive.ph/RvjOy
namespace ComiServ.Extensions;
public static class DatabaseExtensions
{
//with a compound primary key, `ignorePrimaryKey` will ignore all of them
public static int InsertOrIgnore<T>(this DbContext context, T item, bool ignorePrimaryKey = false)
{
var entityType = context.Model.FindEntityType(typeof(T));
var tableName = entityType.GetTableName();
//var tableSchema = entityType.GetSchema();
var cols = entityType.GetProperties()
.Where(c => !ignorePrimaryKey || !c.IsPrimaryKey())
.Select(c => new {
Name = c.GetColumnName(),
//Type = c.GetColumnType(),
Value = c.PropertyInfo.GetValue(item)
})
.ToList();
var query = "INSERT OR IGNORE INTO " + tableName
+ " (" + string.Join(", ", cols.Select(c => c.Name)) + ") " +
"VALUES (" + string.Join(", ", cols.Select((c,i) => "{" + i + "}")) + ")";
var args = cols.Select(c => c.Value).ToArray();
var formattable = FormattableStringFactory.Create(query, args);
return context.Database.ExecuteSql(formattable);
}
public static int InsertOrIgnore<T>(this DbContext context, IEnumerable<T> items, bool ignorePrimaryKey = false)
{
var entityType = context.Model.FindEntityType(typeof(T));
var tableName = entityType.GetTableName();
//var tableSchema = entityType.GetSchema();
var colProps = entityType.GetProperties().Where(c => !ignorePrimaryKey || !c.IsPrimaryKey()).ToList();
var colNames = colProps.Select(c => c.Name).ToList();
if (colNames.Count == 0)
throw new InvalidOperationException("No columns to insert");
var rows = items
.Select(item =>
colProps.Select(c =>
c.PropertyInfo.GetValue(item))
.ToList())
.ToList();
int count = 0;
var query = "INSERT OR IGNORE INTO " + tableName
+ "(" + string.Join(',', colNames) + ")"
+ "VALUES" + string.Join(',', rows.Select(row =>
"(" + string.Join(',', row.Select(v => "{"
+ count++
+ "}")) + ")"
));
var args = rows.SelectMany(row => row).ToArray();
var formattable = FormattableStringFactory.Create(query, args);
return context.Database.ExecuteSql(formattable);
}
}

25
ComiServ/Extensions/StreamExtentions.cs Normal file
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namespace ComiServ.Extensions;
public static class StreamExtensions
{
//https://stackoverflow.com/questions/1080442/how-do-i-convert-a-stream-into-a-byte-in-c
//https://archive.ph/QUKys
public static byte[] ReadAllBytes(this Stream instream)
{
if (instream is MemoryStream)
return ((MemoryStream)instream).ToArray();
using var memoryStream = new MemoryStream();
instream.CopyTo(memoryStream);
return memoryStream.ToArray();
}
public static async Task<byte[]> ReadAllBytesAsync(this Stream instream)
{
if (instream is MemoryStream)
return ((MemoryStream)instream).ToArray();
using var memoryStream = new MemoryStream();
await instream.CopyToAsync(memoryStream);
return memoryStream.ToArray();
}
}

674
ComiServ/LICENSE Normal file
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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
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Some devices are designed to deny users access to install or run
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The precise terms and conditions for copying, distribution and
modification follow.
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Nothing in this License shall be construed as excluding or limiting
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If conditions are imposed on you (whether by court order, agreement or
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Notwithstanding any other provision of this License, you have
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under version 3 of the GNU Affero General Public License into a single
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14. Revised Versions of this License.
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If the Program specifies that a proxy can decide which future
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If the disclaimer of warranty and limitation of liability provided
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

6
ComiServ/Logging/Events.cs Normal file
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namespace ComiServ.Logging;
public static class Events
{
}

77
ComiServ/Middleware/BasicAuthenticationMiddleware.cs Normal file
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using ComiServ.Entities;
using ComiServ.Services;
using Microsoft.AspNetCore.Builder;
using Microsoft.EntityFrameworkCore;
using SixLabors.ImageSharp.Metadata.Profiles.Exif;
using System.Text;
namespace ComiServ.Middleware
{
//only user of a type in `authorized` are permitted past this middleware
//auth header is only checked once, so you can place multiple in the pipeline to further restrict
//some endpoints
public class BasicAuthenticationMiddleware(RequestDelegate next, UserTypeEnum[] authorized)
{
private readonly RequestDelegate _next = next;
public async Task InvokeAsync(HttpContext httpContext, ComicsContext context, IAuthenticationService auth)
{
if (!auth.Tested)
{
var authHeader = httpContext.Request.Headers.Authorization.SingleOrDefault();
if (authHeader is string header)
{
if (header.StartsWith("Basic"))
{
header = header[5..].Trim();
byte[] data = Convert.FromBase64String(header);
string decoded = Encoding.UTF8.GetString(data);
var split = decoded.Split(':', 2);
if (split.Length == 2)
{
var user = split[0];
var pass = split[1];
var userCon = context.Users
.Include(u => u.UserType)
.SingleOrDefault(u => EF.Functions.Like(u.Username, user));
if (userCon is not null && userCon.UserTypeId != UserTypeEnum.Disabled)
{
var bPass = Encoding.UTF8.GetBytes(pass);
var salt = userCon.Salt;
var hashed = User.Hash(bPass, salt);
if (hashed.SequenceEqual(userCon.HashedPassword))
auth.Authenticate(userCon);
}
}
}
//handle other schemes here maybe
}
else
{
auth.FailAuth();
}
}
if (authorized.Length == 0 || authorized.Contains(auth.User?.UserTypeId ?? UserTypeEnum.Invalid))
{
await _next(httpContext);
}
else if (auth.User is not null)
{
httpContext.Response.StatusCode = StatusCodes.Status403Forbidden;
}
else
{
httpContext.Response.StatusCode = StatusCodes.Status401Unauthorized;
httpContext.Response.Headers.WWWAuthenticate = "Basic";
}
}
}
public static class BasicAuthenticationMiddlewareExtensions
{
public static IApplicationBuilder UseBasicAuthentication(this IApplicationBuilder builder, IEnumerable<UserTypeEnum> authorized)
{
//keep a private copy of the array
return builder.UseMiddleware<BasicAuthenticationMiddleware>(authorized.ToArray());
}
}
}

6
ComiServ/Models/AuthorResponse.cs Normal file
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namespace ComiServ.Models;
public record class AuthorResponse(string Name, int WorkCount)
{
}

40
ComiServ/Models/ComicData.cs Normal file
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using ComiServ.Entities;
namespace ComiServ.Models
{
public class ComicData
{
public string Handle { get; set; }
public bool Exists { get; set; }
public string Filepath { get; set; }
public string Title { get; set; }
public string Description { get; set; }
public int PageCount { get; set; }
public long SizeBytes { get; set; }
public string FileXxhash64 { get; set; }
public List<string> Authors { get; set; }
public List<string> Tags { get; set; }
public ComicData(Comic comic)
{
Handle = comic.Handle;
Exists = comic.Exists;
Filepath = comic.Filepath;
Title = comic.Title;
PageCount = comic.PageCount;
SizeBytes = comic.SizeBytes;
FileXxhash64 = "";
var unsigned = (UInt64)comic.FileXxhash64;
for (int i = 0; i < 8; i++)
{
var c = unsigned % 16;
if (c < 10)
FileXxhash64 += ((char)('0' + c)).ToString();
else
FileXxhash64 += ((char)('A' + c - 10)).ToString();
unsigned /= 16;
}
Authors = comic.ComicAuthors.Select(a => a.Author.Name).ToList();
Tags = comic.ComicTags.Select(a => a.Tag.Name).ToList();
}
}
}

7
ComiServ/Models/ComicDeleteRequest.cs Normal file
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namespace ComiServ.Models;
//handle is taken from URL
public record class ComicDeleteRequest
(
bool DeleteIfFileExists
);

22
ComiServ/Models/ComicDuplicateList.cs Normal file
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using ComiServ.Entities;
namespace ComiServ.Models;
public class ComicDuplicateList
{
public long Hash { get; set; }
public int Count { get; set; }
public List<ComicData> Comics { get; set; }
public ComicDuplicateList(long hash, IEnumerable<Comic> comics)
{
Hash = hash;
Comics = comics.Select(c => new ComicData(c)).ToList();
Count = Comics.Count;
}
public ComicDuplicateList(long hash, IEnumerable<ComicData> comics)
{
Hash = hash;
Comics = comics.ToList();
Count = Comics.Count;
}
}

9
ComiServ/Models/ComicMetadataUpdateRequest.cs Normal file
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namespace ComiServ.Models;
public class ComicMetadataUpdateRequest
{
public string? Title { get; set; }
public string? Description { get; set; }
public List<string>? Tags { get; set; }
public List<string>? Authors { get; set; }
}

5
ComiServ/Models/LibraryResponse.cs Normal file
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namespace ComiServ.Models;
public record class LibraryResponse(int ComicCount, int UniqueFiles)
{
}

95
ComiServ/Models/Paginated.cs Normal file
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using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.CodeAnalysis.CSharp;
using Microsoft.EntityFrameworkCore;
namespace ComiServ.Models;
public class Paginated<T>
{
public int Max { get; }
public int Page { get; }
public bool Last { get; }
public int Count { get; }
public List<T> Items { get; }
public Paginated(int max, int page, IEnumerable<T> iter)
{
if (max <= 0)
{
throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
}
if (page < 0)
{
throw new ArgumentOutOfRangeException(nameof(page), page, "must be greater than or equal to 0");
}
Max = max;
Page = page;
Items = iter.Skip(max * page).Take(max + 1).ToList();
if (Items.Count > max)
{
Last = false;
Items.RemoveAt(max);
}
else
{
Last = true;
}
Count = Items.Count;
}
private Paginated(int max, int page, bool last, List<T> items)
{
Max = max;
Page = page;
Last = last;
Items = items;
Count = Items.Count;
}
public static async Task<Paginated<T>> CreateAsync(int max, int page, IQueryable<T> iter)
{
if (max <= 0)
{
throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
}
if (page < 0)
{
throw new ArgumentOutOfRangeException(nameof(page), page, "must be greater than or equal to 0");
}
var items = await iter.Skip(max * page).Take(max + 1).ToListAsync();
bool last = true;
if (items.Count > max)
{
last = false;
items.RemoveAt(max);
}
return new(max, page, last, items);
}
public static async Task<Paginated<T>> CreateAsync(int max, int page, IAsyncEnumerable<T> iter)
{
if (max <= 0)
{
throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
}
if (page < 0)
{
throw new ArgumentOutOfRangeException(nameof(page), page, "must be greater than or equal to 0");
}
List<T> items = [];
var skip = max * page;
await foreach (T item in iter)
{
if (skip > 0)
{
skip--;
continue;
}
items.Add(item);
if (items.Count >= max + 1)
break;
}
var last = true;
if (items.Count > max)
{
last = false;
items.RemoveAt(max);
}
return new(max, page, last, items);
}
}

51
ComiServ/Models/RequestError.cs Normal file
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using System.Collections;
namespace ComiServ.Models;
public class RequestError : IEnumerable<string>
{
public static RequestError InvalidHandle => new("Invalid handle");
public static RequestError ComicNotFound => new("Comic not found");
public static RequestError CoverNotFound => new("Cover not found");
public static RequestError PageNotFound => new("Page not found");
public static RequestError FileNotFound => new("File not found");
public static RequestError ThumbnailNotFound => new("Thumbnail not found");
public static RequestError NotAuthenticated => new("Not authenticated");
public static RequestError NoAccess => new("User does not have access to this resource");
public static RequestError UserNotFound => new("User not found");
public static RequestError ComicFileExists => new("Comic file exists so comic not deleted");
public static RequestError UserSpecificEndpoint => new("Endpoint is user-specific, requires login");
public string[] Errors { get; }
public RequestError(string ErrorMessage)
{
Errors = [ErrorMessage];
}
public RequestError()
{
Errors = [];
}
public RequestError(IEnumerable<string> ErrorMessages)
{
Errors = ErrorMessages.ToArray();
}
public RequestError And(RequestError other)
{
return new RequestError(Errors.Concat(other.Errors));
}
public RequestError And(string other)
{
return new RequestError(Errors.Append(other));
}
public RequestError And(IEnumerable<string> other)
{
return new RequestError(Errors.Concat(other));
}
public IEnumerator<string> GetEnumerator()
{
return ((IEnumerable<string>)Errors).GetEnumerator();
}
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
}

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namespace ComiServ.Models;
public record class TagResponse(string Name, int WorkCount)
{
}

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using Microsoft.CodeAnalysis.CSharp;
using Microsoft.EntityFrameworkCore;
using System.Reflection.PortableExecutable;
namespace ComiServ.Models;
public class Truncated<T>
{
public int Max { get; }
public int Count { get; }
public bool Complete { get; }
public List<T> Items { get; }
public Truncated(int max, IEnumerable<T> iter)
{
if (max <= 0)
{
throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
}
Max = max;
Items = iter.Take(max+1).ToList();
if (Items.Count <= max)
{
Complete = true;
}
else
{
Items.RemoveAt(max);
Complete = false;
}
Count = Items.Count;
}
private Truncated(int max, bool complete, List<T> items)
{
Max = max;
Complete = complete;
Count = items.Count;
Items = items;
}
public static async Task<Truncated<T>> CreateAsync(int max, IQueryable<T> iter)
{
if (max <= 0)
{
throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
}
var items = await iter.Take(max+1).ToListAsync();
var complete = true;
if (items.Count < max)
{
items.RemoveAt(max);
complete = false;
}
return new(max, complete, items);
}
public static async Task<Truncated<T>> CreateAsync(int max, IAsyncEnumerable<T> iter)
{
if (max <= 0)
{
throw new ArgumentOutOfRangeException(nameof(max), max, "must be greater than 0");
}
List<T> items = [];
await foreach (T item in iter)
{
items.Add(item);
if (items.Count > max)
break;
}
var complete = true;
if (items.Count <= max)
{
items.RemoveAt(max);
complete = false;
}
return new Truncated<T>(max, complete, items);
}
}

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using ComiServ.Entities;
namespace ComiServ.Models;
public class UserCreateRequest
{
public string Username { get; set; }
public UserTypeEnum UserType { get; set; }
//NOT HASHED do not persist this object
public string Password { get; set; }
}

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namespace ComiServ.Models;
public record class UserDescription(string Username, string Usertype)
{
}

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using ComiServ.Entities;
namespace ComiServ.Models;
public class UserModifyRequest
{
public string Username { get; set; }
public string? NewUsername { get; set; }
public UserTypeEnum? NewUserType { get; set; }
}

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using ComiServ;
using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Builder;
using Microsoft.Extensions.DependencyInjection;
using ComiServ.Background;
using Swashbuckle.AspNetCore.SwaggerGen;
using ComiServ.Entities;
using ComiServ.Services;
using ComiServ.Middleware;
using ComiServ.Controllers;
using System.Text;
var CONFIG_FILEPATH = "config.json";
var configService = new JsonConfigService(CONFIG_FILEPATH);
var config = configService.Config;
var ConnectionString = $"Data Source={config.DatabaseFile};Mode=ReadWriteCreate";
for (int i = 0; i < args.Length; i++)
{
if (args[i] == "--addadmin")
{
string username;
if (args.ElementAtOrDefault(i + 1) is string _username)
{
username = _username;
}
else
{
Console.Write("Username: ");
username = Console.ReadLine()
?? throw new Exception("must provide a username");
}
username = username.Trim();
Console.Write("Password: ");
string password = Console.ReadLine()?.Trim()
?? throw new Exception("must provide a username");
var salt = User.MakeSalt();
var hashed = User.Hash(Encoding.UTF8.GetBytes(password), salt);
using var context = new ComicsContext(
new DbContextOptionsBuilder<ComicsContext>()
.UseSqlite(ConnectionString).Options);
context.Users.Add(new User()
{
Username = username,
Salt = salt,
HashedPassword = hashed,
UserTypeId = UserTypeEnum.Administrator
});
context.SaveChanges();
return;
}
}
var builder = WebApplication.CreateBuilder(args);
builder.Services.AddControllers();
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen(c =>
{
c.SchemaFilter<EntitySwaggerFilter>();
});
builder.Services.AddSingleton<IConfigService>(configService);
builder.Services.AddDbContext<ComicsContext>(options =>
options.UseSqlite(ConnectionString));
builder.Services.AddDatabaseDeveloperPageExceptionFilter();
builder.Services.AddSingleton<ITaskManager>(sp =>
new TaskManager(sp.GetService<ILogger<ITaskManager>>()));
builder.Services.AddSingleton<IComicAnalyzer>(sp =>
new SynchronousComicAnalyzer(
logger: sp.GetRequiredService<ILogger<IComicAnalyzer>>()));
builder.Services.AddSingleton<IComicScanner>(sp =>
new ComicScanner(provider: sp));
builder.Services.AddSingleton<IPictureConverter>(
new ResharperPictureConverter(true));
builder.Services.AddHttpLogging(o => { });
builder.Services.AddScoped<IAuthenticationService>(
sp => new AuthenticationService());
builder.Services.AddLogging(config =>
{
config.AddConsole();
config.AddDebug();
});
var app = builder.Build();
app.UseHttpLogging();
app.UseHttpsRedirection();
app.UseStaticFiles();
if (app.Environment.IsDevelopment())
{
app.UseSwagger();
app.UseSwaggerUI();
app.UseDeveloperExceptionPage();
app.UseMigrationsEndPoint();
}
using (var scope = app.Services.CreateScope())
{
var services = scope.ServiceProvider;
using var context = services.GetRequiredService<ComicsContext>();
context.Database.EnsureCreated();
}
var scanner = app.Services.GetRequiredService<IComicScanner>();
scanner.TriggerLibraryScan();
scanner.ScheduleRepeatedLibraryScans(TimeSpan.FromDays(1));
app.UseHttpsRedirection();
//ensures that the user is authenticated (if auth is provided) but does not restrict access to any routes
app.UseBasicAuthentication([]);
//require user or admin account to access any comic resource
app.UseWhen(context => context.Request.Path.StartsWithSegments(ComicController.ROUTE), appBuilder =>
{
appBuilder.UseBasicAuthentication([UserTypeEnum.User, UserTypeEnum.Administrator]);
});
//require user or admin account to access any user resource
app.UseWhen(context => context.Request.Path.StartsWithSegments(UserController.ROUTE), appBuilder =>
{
appBuilder.UseBasicAuthentication([UserTypeEnum.User, UserTypeEnum.Administrator]);
});
//require admin account to access any task resource
app.UseWhen(context => context.Request.Path.StartsWithSegments(TaskController.ROUTE), appBuilder =>
{
appBuilder.UseBasicAuthentication([UserTypeEnum.Administrator]);
});
app.MapControllers();
app.Run();

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{
"$schema": "http://json.schemastore.org/launchsettings.json",
"iisSettings": {
"windowsAuthentication": false,
"anonymousAuthentication": true,
"iisExpress": {
"applicationUrl": "http://localhost:32904",
"sslPort": 44308
}
},
"profiles": {
"http": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "http://localhost:5265",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"https": {
"commandName": "Project",
"dotnetRunMessages": true,
"launchBrowser": true,
"launchUrl": "swagger",
"applicationUrl": "https://localhost:7020;http://localhost:5265",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"launchUrl": "swagger",
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
}
}
}

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# ComiServ
An educational project to create a comic server in Asp.Net Core and Entity Framework Core. Scans a library folder for comic files, and exposes an API to:
- Get/Set metadata for any comic file (author, tags, description, etc.)
- Search comics using any metadata
- Track read status for each user
- Serve entire comic files, or individual pages (with optional resizing and re-encoding)
- identify duplicate files in the library
API is thoroughly documented through Swagger. In progress is a web app that consumes the API and provides a convenient user interface.
(If this sounds like something you want to run on your machine, you should check out komga: https://github.com/gotson/komga)

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using ComiServ.Entities;
namespace ComiServ.Services;
public interface IAuthenticationService
{
public bool Tested { get; }
public User? User { get; }
public void Authenticate(User user);
public void FailAuth();
}
//acts as a per-request container of authentication info
public class AuthenticationService : IAuthenticationService
{
public bool Tested { get; private set; } = false;
public User? User { get; private set; }
public AuthenticationService()
{
}
public void Authenticate(User user)
{
User = user;
Tested = true;
}
public void FailAuth()
{
User = null;
Tested = true;
}
}

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using Microsoft.AspNetCore.Routing.Constraints;
using Microsoft.AspNetCore.StaticFiles;
using SharpCompress.Archives;
using SharpCompress.Archives.Rar;
using SharpCompress.Archives.SevenZip;
using System.Diagnostics;
using System.IO.Compression;
using System.IO.Hashing;
using System.Linq;
namespace ComiServ.Background;
public record class ComicAnalysis
(
long FileSizeBytes,
int PageCount,
Int64 Xxhash
);
public record class ComicPage
(
string Filename,
string Mime,
byte[] Data
);
public interface IComicAnalyzer
{
public static readonly IReadOnlyList<string> ZIP_EXTS = [".cbz", ".zip"];
public static readonly IReadOnlyList<string> RAR_EXTS = [".cbr", ".rar"];
public static readonly IReadOnlyList<string> ZIP7_EXTS = [".cb7", ".7z"];
public bool ComicFileExists(string filename);
public void DeleteComicFile(string filename);
//returns null on invalid filetype, throws on analysis error
public ComicAnalysis? AnalyzeComic(string filename);
public Task<ComicAnalysis?> AnalyzeComicAsync(string filename);
//returns null if out of range, throws for file error
public ComicPage? GetComicPage(string filepath, int page);
public Task<ComicPage?> GetComicPageAsync(string filepath, int page);
//based purely on filename, doesn't try to open file
//returns null for ALL UNRECOGNIZED OR NON-IMAGES
public static string? GetImageMime(string filename)
{
if (new FileExtensionContentTypeProvider().TryGetContentType(filename, out string? _mime))
{
if (_mime?.StartsWith("image") ?? false)
return _mime;
}
return null;
}
}
//async methods actually just block
public class SynchronousComicAnalyzer(ILogger<IComicAnalyzer>? logger)
: IComicAnalyzer
{
private readonly ILogger<IComicAnalyzer>? _logger = logger;
public bool ComicFileExists(string filename)
{
return File.Exists(filename);
}
public void DeleteComicFile(string filename)
{
try
{
File.Delete(filename);
}
catch (DirectoryNotFoundException)
{
return;
}
}
public ComicAnalysis? AnalyzeComic(string filepath)
{
_logger?.LogTrace($"Analyzing comic: {filepath}");
var ext = new FileInfo(filepath).Extension.ToLower();
if (IComicAnalyzer.ZIP_EXTS.Contains(ext))
return ZipAnalyze(filepath);
else if (IComicAnalyzer.RAR_EXTS.Contains(ext))
return RarAnalyze(filepath);
else if (IComicAnalyzer.ZIP7_EXTS.Contains(ext))
return Zip7Analyze(filepath);
else
//throw new ArgumentException("Cannot analyze this file type");
return null;
}
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
public async Task<ComicAnalysis?> AnalyzeComicAsync(string filename)
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
{
return AnalyzeComic(filename);
}
protected ComicAnalysis ZipAnalyze(string filepath)
{
var filedata = File.ReadAllBytes(filepath);
var hash = ComputeHash(filedata);
using var stream = new MemoryStream(filedata);
using var archive = new ZipArchive(stream, ZipArchiveMode.Read, false);
return new
(
FileSizeBytes: filedata.LongLength,
PageCount: archive.Entries.Count,
Xxhash: hash
);
}
protected ComicAnalysis RarAnalyze(string filepath)
{
var filedata = File.ReadAllBytes(filepath);
var hash = ComputeHash(filedata);
using var stream = new MemoryStream(filedata);
using var rar = RarArchive.Open(stream, new SharpCompress.Readers.ReaderOptions()
{
LeaveStreamOpen = false
});
return new
(
FileSizeBytes: filedata.LongLength,
PageCount: rar.Entries.Count,
Xxhash: hash
);
}
protected ComicAnalysis Zip7Analyze(string filepath)
{
var filedata = File.ReadAllBytes(filepath);
var hash = ComputeHash(filedata);
using var stream = new MemoryStream(filedata);
using var zip7 = SevenZipArchive.Open(stream, new SharpCompress.Readers.ReaderOptions()
{
LeaveStreamOpen = false
});
return new
(
FileSizeBytes: filedata.LongLength,
PageCount: zip7.Entries.Count,
Xxhash: hash
);
}
protected static Int64 ComputeHash(ReadOnlySpan<byte> data)
=> unchecked((Int64)XxHash64.HashToUInt64(data));
public ComicPage? GetComicPage(string filepath, int page)
{
var fi = new FileInfo(filepath);
var ext = fi.Extension;
if (IComicAnalyzer.ZIP_EXTS.Contains(ext))
return GetPageZip(filepath, page);
else if (IComicAnalyzer.RAR_EXTS.Contains(ext))
return GetPageRar(filepath, page);
else if (IComicAnalyzer.ZIP7_EXTS.Contains(ext))
return GetPage7Zip(filepath, page);
else return null;
}
#pragma warning disable CS1998 // Async method lacks 'await' operators and will run synchronously
public async Task<ComicPage?> GetComicPageAsync(string filepath, int page)
#pragma warning restore CS1998 // Async method lacks 'await' operators and will run synchronously
{
return GetComicPage(filepath, page);
}
protected ComicPage? GetPageZip(string filepath, int page)
{
Debug.Assert(page >= 1, "Page number must be positive");
try
{
using var fileStream = new FileStream(filepath, FileMode.Open);
using var arc = new ZipArchive(fileStream, ZipArchiveMode.Read, false);
(var entry, var mime) = arc.Entries
.Select((ZipArchiveEntry e) => (e, IComicAnalyzer.GetImageMime(e.Name)))
.Where(static pair => pair.Item2 is not null)
.OrderBy(static pair => pair.Item1.FullName)
.Skip(page - 1)
.FirstOrDefault();
if (entry is null || mime is null)
return null;
using var pageStream = entry.Open();
using var pageStream2 = new MemoryStream();
pageStream.CopyTo(pageStream2);
pageStream2.Seek(0, SeekOrigin.Begin);
var pageData = pageStream2.ToArray();
return new
(
Filename: entry.Name,
Mime: mime,
Data: pageData
);
}
catch (FileNotFoundException)
{
return null;
}
catch (DirectoryNotFoundException)
{
return null;
}
}
protected ComicPage? GetPageRar(string filepath, int page)
{
using var rar = RarArchive.Open(filepath);
(var entry, var mime) = rar.Entries
.Select((RarArchiveEntry e) => (e, IComicAnalyzer.GetImageMime(e.Key)))
.Where(static pair => pair.Item2 is not null)
.OrderBy(static pair => pair.Item1.Key)
.Skip(page - 1)
.FirstOrDefault();
if (entry is null || mime is null)
return null;
using var stream = new MemoryStream();
entry.WriteTo(stream);
var pageData = stream.ToArray();
return new
(
Filename: entry.Key ?? "",
Mime: mime,
Data: pageData
);
}
protected ComicPage? GetPage7Zip(string filepath, int page)
{
using var zip7 = SevenZipArchive.Open(filepath);
(var entry, var mime) = zip7.Entries
.Select((SevenZipArchiveEntry e) => (e, IComicAnalyzer.GetImageMime(e.Key)))
.Where(static pair => pair.Item2 is not null)
.OrderBy(static pair => pair.Item1.Key)
.Skip(page - 1)
.FirstOrDefault();
if (entry is null || mime is null)
return null;
using var stream = new MemoryStream();
entry.WriteTo(stream);
var pageData = stream.ToArray();
return new
(
Filename: entry.Key ?? "",
Mime: mime,
Data: pageData
);
}
}

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using System.Collections.Generic;
using System.Runtime.InteropServices;
using ComiServ.Controllers;
using ComiServ.Entities;
using ComiServ.Extensions;
using ComiServ.Services;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration.Ini;
using Microsoft.OpenApi.Writers;
namespace ComiServ.Background;
public record class ComicScanItem
(
string Filepath,
long FileSizeBytes,
Int64 Xxhash,
int PageCount
);
public interface IComicScanner : IDisposable
{
//TODO should be configurable
public static readonly IReadOnlyList<string> COMIC_EXTENSIONS = [
"cbz", "zip",
"cbr", "rar",
"cb7", "7zip",
];
public void TriggerLibraryScan();
public void ScheduleRepeatedLibraryScans(TimeSpan period);
public IDictionary<string, ComicScanItem> PerfomLibraryScan(CancellationToken? token = null);
}
public class ComicScanner(
IServiceProvider provider
) : IComicScanner
{
//private readonly ComicsContext _context = context;
private readonly ITaskManager _manager = provider.GetRequiredService<ITaskManager>();
private readonly Configuration _config = provider.GetRequiredService<IConfigService>().Config;
private readonly IComicAnalyzer _analyzer = provider.GetRequiredService<IComicAnalyzer>();
private readonly IServiceProvider _provider = provider;
public IDictionary<string, ComicScanItem> PerfomLibraryScan(CancellationToken? token = null)
{
return new DirectoryInfo(_config.LibraryRoot).EnumerateFiles("*", SearchOption.AllDirectories)
.Select(fi =>
{
token?.ThrowIfCancellationRequested();
var path = Path.GetRelativePath(_config.LibraryRoot, fi.FullName);
var analysis = _analyzer.AnalyzeComic(fi.FullName);
if (analysis is null)
//null will be filtered
return (path, null);
return (path, new ComicScanItem
(
Filepath: path,
FileSizeBytes: analysis.FileSizeBytes,
Xxhash: analysis.Xxhash,
PageCount: analysis.PageCount
));
})
//ignore files of the wrong extension
.Where(p => p.Item2 is not null)
.ToDictionary();
}
public void TriggerLibraryScan()
{
SyncTaskItem ti = new(
TaskTypes.Scan,
"Library Scan",
async token =>
{
var items = PerfomLibraryScan(token);
token?.ThrowIfCancellationRequested();
await UpdateDatabaseWithScanResults(items);
},
null);
_manager.StartTask(ti);
}
private CancellationTokenSource? RepeatedLibraryScanTokenSource = null;
public void ScheduleRepeatedLibraryScans(TimeSpan interval)
{
RepeatedLibraryScanTokenSource?.Cancel();
RepeatedLibraryScanTokenSource?.Dispose();
RepeatedLibraryScanTokenSource = new();
AsyncTaskItem ti = new(
TaskTypes.Scan,
"Scheduled Library Scan",
async token =>
{
var items = PerfomLibraryScan(token);
token?.ThrowIfCancellationRequested();
await UpdateDatabaseWithScanResults(items);
},
RepeatedLibraryScanTokenSource.Token);
_manager.ScheduleTask(ti, interval);
}
public async Task UpdateDatabaseWithScanResults(IDictionary<string, ComicScanItem> items)
{
using var scope = _provider.CreateScope();
var services = scope.ServiceProvider;
using var context = services.GetRequiredService<ComicsContext>();
//not an ideal algorithm
//need to go through every comic in the database to update `Exists`
//also need to go through every discovered comic to add new ones
//and should make sure not to double up on the overlaps
//there should be a faster method than using ExceptBy but I don't it's urgent
//TODO profile on large database
SortedSet<string> alreadyExistingFiles = [];
foreach (var comic in context.Comics)
{
ComicScanItem info;
if (items.TryGetValue(comic.Filepath, out info))
{
comic.FileXxhash64 = info.Xxhash;
comic.Exists = true;
comic.PageCount = info.PageCount;
comic.SizeBytes = info.FileSizeBytes;
alreadyExistingFiles.Add(comic.Filepath);
}
else
{
comic.Exists = false;
}
}
var newComics = items.ExceptBy(alreadyExistingFiles, p => p.Key).Select(p =>
new Comic()
{
Handle = context.CreateHandle(),
Exists = true,
Filepath = p.Value.Filepath,
Title = new FileInfo(p.Value.Filepath).Name,
Description = "",
SizeBytes = p.Value.FileSizeBytes,
FileXxhash64 = p.Value.Xxhash,
PageCount = p.Value.PageCount
}).ToList();
//newComics.ForEach(c => _manager.StartTask(new(
// TaskTypes.GetCover,
// $"Get Cover: {c.Title}",
// token => InsertCover(Path.Join(_config.LibraryRoot, c.Filepath), c.FileXxhash64)
// )));
foreach (var comic in newComics)
{
_manager.StartTask((AsyncTaskItem)new(
TaskTypes.GetCover,
$"Get Cover: {comic.Title}",
token => InsertCover(Path.Join(_config.LibraryRoot, comic.Filepath), comic.FileXxhash64)
));
}
//newComics.ForEach(c => _manager.StartTask(new(
// TaskTypes.MakeThumbnail,
// $"Make Thumbnail: {c.Title}",
// token => InsertThumbnail(c.Handle, Path.Join(_config.LibraryRoot, c.Filepath), 1)
// )));
foreach (var comic in newComics)
{
_manager.StartTask((AsyncTaskItem)new(
TaskTypes.MakeThumbnail,
$"Make Thumbnail: {comic.Title}",
token => InsertThumbnail(comic.Handle, Path.Join(_config.LibraryRoot, comic.Filepath), 1)
));
}
context.Comics.AddRange(newComics);
await context.SaveChangesAsync();
}
protected async Task InsertCover(string filepath, long hash)
{
using var scope = _provider.CreateScope();
var services = scope.ServiceProvider;
using var context = services.GetRequiredService<ComicsContext>();
var existing = await context.Covers.SingleOrDefaultAsync(c => c.FileXxhash64 == hash);
//assuming no hash overlap
//if you already have a cover, assume it's correct
if (existing is not null)
return;
var page = await _analyzer.GetComicPageAsync(filepath, 1);
if (page is null)
return;
Cover cover = new()
{
FileXxhash64 = hash,
Filename = page.Filename,
CoverFile = page.Data
};
context.InsertOrIgnore(cover, true);
}
protected async Task InsertThumbnail(string handle, string filepath, int page = 1)
{
using var scope = _provider.CreateScope();
var services = scope.ServiceProvider;
using var context = services.GetRequiredService<ComicsContext>();
var comic = await context.Comics.SingleOrDefaultAsync(c => c.Handle == handle);
if (comic?.ThumbnailWebp is null)
return;
var comicPage = _analyzer.GetComicPage(filepath, page);
if (comicPage is null)
return;
var converter = services.GetRequiredService<IPictureConverter>();
using var inStream = new MemoryStream(comicPage.Data);
var outStream = await converter.MakeThumbnail(inStream);
comic.ThumbnailWebp = outStream.ReadAllBytes();
}
public void Dispose()
{
RepeatedLibraryScanTokenSource?.Dispose();
GC.SuppressFinalize(this);
}
}

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using System.Text.Json;
namespace ComiServ.Services;
public class Configuration
{
public string LibraryRoot { get; set; }
public string DatabaseFile { get; set; }
public double AutoScanPeriodHours { get; set; }
public Configuration Copy()
=> MemberwiseClone() as Configuration
//this really shouldn't be possible
?? throw new Exception("Failed to clone configuration");
}
public interface IConfigService
{
public Configuration Config { get; }
}
public class JsonConfigService : IConfigService
{
public Configuration _Config;
//protect original
public Configuration Config => _Config.Copy();
public JsonConfigService(string filepath)
{
using var fileStream = File.OpenRead(filepath);
_Config = JsonSerializer.Deserialize<Configuration>(fileStream)
?? throw new ArgumentException("Failed to parse config file");
}
}

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//using System.Drawing;
using System.Drawing.Imaging;
using SixLabors.ImageSharp;
using SixLabors.ImageSharp.Processing;
using SixLabors.ImageSharp.Formats;
using SixLabors.ImageSharp.Formats.Webp;
using SixLabors.ImageSharp.Formats.Jpeg;
using SixLabors.ImageSharp.Formats.Png;
using SixLabors.ImageSharp.Formats.Gif;
using SixLabors.ImageSharp.Formats.Bmp;
using System.Text.Json.Serialization;
using Microsoft.AspNetCore.StaticFiles;
namespace ComiServ.Background;
[JsonConverter(typeof(JsonStringEnumConverter))]
public enum PictureFormats
{
Webp,
Jpg,
Png,
Gif,
Bmp,
}
//never closes stream!
public interface IPictureConverter
{
public static System.Drawing.Size ThumbnailResolution => new(200, 320);
public static PictureFormats ThumbnailFormat => PictureFormats.Webp;
//keeps aspect ratio, crops to horizontally to center, vertically to top
//uses System.Drawing.Size so interface isn't dependant on ImageSharp
public Task<Stream> Resize(Stream image, System.Drawing.Size newSize, PictureFormats? newFormat = null);
public Task<Stream> ResizeIfBigger(Stream image, System.Drawing.Size maxSize, PictureFormats? newFormat = null);
public Task<Stream> MakeThumbnail(Stream image);
public static string GetMime(PictureFormats format)
{
switch (format)
{
case PictureFormats.Webp:
return "image/webp";
case PictureFormats.Gif:
return "image/gif";
case PictureFormats.Jpg:
return "image/jpeg";
case PictureFormats.Bmp:
return "image/bmp";
case PictureFormats.Png:
return "image/png";
default:
throw new ArgumentException("Cannot handle this format", nameof(format));
}
}
}
public class ResharperPictureConverter(bool webpLossless = false)
: IPictureConverter
{
public static IImageFormat ConvertFormatEnum(PictureFormats format)
{
switch (format)
{
case PictureFormats.Webp:
return WebpFormat.Instance;
case PictureFormats.Jpg:
return JpegFormat.Instance;
case PictureFormats.Png:
return PngFormat.Instance;
case PictureFormats.Gif:
return GifFormat.Instance;
case PictureFormats.Bmp:
return BmpFormat.Instance;
default:
throw new ArgumentException("Cannot handle this format", nameof(format));
}
}
public bool WebpLossless { get; } = webpLossless;
public async Task<Stream> Resize(Stream image, System.Drawing.Size newSize, PictureFormats? newFormat = null)
{
using var img = Image.Load(image);
IImageFormat format;
if (newFormat is PictureFormats nf)
format = ConvertFormatEnum(nf);
else if (img.Metadata.DecodedImageFormat is IImageFormat iif)
format = img.Metadata.DecodedImageFormat;
else
format = WebpFormat.Instance;
double oldAspect = ((double)img.Height) / img.Width;
double newAspect = ((double)newSize.Height) / newSize.Width;
Rectangle sourceRect;
if (newAspect > oldAspect)
{
var y = 0;
var h = newSize.Height;
var w = (int)(h / newAspect);
var x = (img.Width - w) / 2;
sourceRect = new Rectangle(x, y, w, h);
}
else
{
var x = 0;
var w = newSize.Width;
var h = (int)(w * newAspect);
var y = 0;
sourceRect = new Rectangle(x, y, w, h);
}
img.Mutate(c => c.Crop(sourceRect).Resize(new Size(newSize.Width, newSize.Height)));
var outStream = new MemoryStream();
if (format is WebpFormat)
{
var enc = new WebpEncoder()
{
FileFormat = WebpLossless ? WebpFileFormatType.Lossless : WebpFileFormatType.Lossy
};
await img.SaveAsync(outStream, enc);
}
else
{
await img.SaveAsync(outStream, format);
}
return outStream;
}
public async Task<Stream> ResizeIfBigger(Stream image, System.Drawing.Size maxSize, PictureFormats? newFormat = null)
{
using Image img = Image.Load(image);
IImageFormat format;
if (newFormat is PictureFormats nf)
format = ConvertFormatEnum(nf);
else if (img.Metadata.DecodedImageFormat is IImageFormat iif)
format = img.Metadata.DecodedImageFormat;
else
format = WebpFormat.Instance;
double scale = 1;
if (img.Size.Width > maxSize.Width)
{
scale = Math.Min(scale, ((double)maxSize.Width) / img.Size.Width);
}
if (img.Size.Height > maxSize.Height)
{
scale = Math.Min(scale, ((double)maxSize.Height) / img.Size.Height);
}
Size newSize = new((int)(img.Size.Width * scale), (int)(img.Size.Height * scale));
img.Mutate(c => c.Resize(newSize));
var outStream = new MemoryStream();
if (format is WebpFormat)
{
var enc = new WebpEncoder()
{
FileFormat = WebpLossless ? WebpFileFormatType.Lossless : WebpFileFormatType.Lossy
};
await img.SaveAsync(outStream, enc);
}
else
{
await img.SaveAsync(outStream, format);
}
return outStream;
}
public async Task<Stream> MakeThumbnail(Stream image)
{
return await Resize(image, IPictureConverter.ThumbnailResolution, IPictureConverter.ThumbnailFormat);
}
}

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ComiServ/Services/TaskManager.cs Normal file
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using NuGet.Common;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Xml.Linq;
namespace ComiServ.Services;
public enum TaskTypes
{
Scan,
GetCover,
MakeThumbnail,
}
public abstract class BaseTaskItem
{
public readonly TaskTypes Type;
public readonly string Name;
public readonly CancellationToken Token;
protected BaseTaskItem(TaskTypes type, string name, CancellationToken? token = null)
{
Type = type;
Name = name;
Token = token ?? CancellationToken.None;
}
}
//task needs to use the token parameter rather than its own token, because it gets merged with the master token
public class SyncTaskItem
: BaseTaskItem
{
public readonly Action<CancellationToken?> Action;
public SyncTaskItem(TaskTypes type, string name, Action<CancellationToken?> action, CancellationToken? token = null)
: base(type, name, token)
{
Action = action;
}
}
public class AsyncTaskItem
: BaseTaskItem
{
public readonly Func<CancellationToken?, Task?> AsyncAction;
public AsyncTaskItem(TaskTypes type, string name, Func<CancellationToken?, Task?> asyncAction, CancellationToken? token = null)
: base(type, name, token)
{
AsyncAction = asyncAction;
}
}
public interface ITaskManager : IDisposable
{
public void StartTask(SyncTaskItem taskItem);
public void StartTask(AsyncTaskItem taskItem);
public void ScheduleTask(BaseTaskItem taskItem, TimeSpan interval);
public string[] GetTasks(int limit);
public void CancelAll();
}
public class TaskManager(ILogger<ITaskManager>? logger)
: ITaskManager
{
private readonly ConcurrentDictionary<Task, BaseTaskItem> ActiveTasks = [];
private CancellationTokenSource MasterToken { get; set; } = new();
private readonly ILogger<ITaskManager>? _logger = logger;
private readonly ConcurrentDictionary<System.Timers.Timer, BaseTaskItem> Scheduled = [];
public void StartTask(SyncTaskItem taskItem)
{
//_logger?.LogTrace($"Start Task: {taskItem.Name}");
var tokenSource = CancellationTokenSource.CreateLinkedTokenSource(MasterToken.Token, taskItem.Token);
var newTask = Task.Run(() => taskItem.Action(tokenSource.Token),
tokenSource.Token);
if (!ActiveTasks.TryAdd(newTask, taskItem))
{
//TODO better exception
throw new Exception("failed to add task");
}
//TODO should master token actually cancel followup?
newTask.ContinueWith(ManageFinishedTasks, MasterToken.Token);
}
public void StartTask(AsyncTaskItem taskItem)
{
var tokenSource = CancellationTokenSource.CreateLinkedTokenSource(MasterToken.Token, taskItem.Token);
var newTask = Task.Run(() => taskItem.AsyncAction(tokenSource.Token),
tokenSource.Token);
if (!ActiveTasks.TryAdd(newTask, taskItem))
{
//TODO better exception
throw new Exception("failed to add task");
}
//TODO should master token actually cancel followup?
newTask.ContinueWith(ManageFinishedTasks, MasterToken.Token);
}
public void ScheduleTask(SyncTaskItem taskItem, TimeSpan interval)
{
//var timer = new Timer((_) => StartTask(taskItem), null, dueTime, period ?? Timeout.InfiniteTimeSpan);
var timer = new System.Timers.Timer(interval);
var token = CancellationTokenSource.CreateLinkedTokenSource(MasterToken.Token, taskItem.Token);
Scheduled.TryAdd(timer, taskItem);
token.Token.Register(() =>
{
timer.Stop();
Scheduled.TryRemove(timer, out var _);
});
timer.Elapsed += (_, _) => taskItem.Action(token.Token);
timer.Start();
}
public void ScheduleTask(BaseTaskItem taskItem, TimeSpan interval)
{
var timer = new System.Timers.Timer(interval);
var token = CancellationTokenSource.CreateLinkedTokenSource(MasterToken.Token, taskItem.Token);
Scheduled.TryAdd(timer, taskItem);
token.Token.Register(() =>
{
timer.Stop();
Scheduled.TryRemove(timer, out var _);
});
if (taskItem is AsyncTaskItem ati)
timer.Elapsed += async (_, _) =>
{
var task = ati.AsyncAction(token.Token);
if (task != null)
await task;
};
else if (taskItem is SyncTaskItem sti)
timer.Elapsed += (_, _) => sti.Action(token.Token);
timer.Start();
}
public string[] GetTasks(int limit)
{
return ActiveTasks.Select(p => p.Value.Name).Take(limit).ToArray();
}
public void CancelAll()
{
MasterToken.Cancel();
MasterToken.Dispose();
MasterToken = new CancellationTokenSource();
}
public void ManageFinishedTasks()
{
ManageFinishedTasks(null);
}
private readonly object _TaskCleanupLock = new();
protected void ManageFinishedTasks(Task? cause = null)
{
//there shouldn't really be concerns with running multiple simultaneously but might as well
lock (_TaskCleanupLock)
{
//cache first because we're modifying the dictionary
foreach (var pair in ActiveTasks.ToArray())
{
if (pair.Key.IsCompleted)
{
bool taskRemoved = ActiveTasks.TryRemove(pair.Key, out _);
if (taskRemoved)
{
_logger?.LogTrace("Removed Task: {TaskName}", pair.Value.Name);
}
}
}
}
}
public void Dispose()
{
MasterToken?.Dispose();
GC.SuppressFinalize(this);
}
}

8
ComiServ/appsettings.Development.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Trace",
"Microsoft.AspNetCore": "Trace"
}
}
}

9
ComiServ/appsettings.json Normal file
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{
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
}
},
"AllowedHosts": "*"
}

5
ComiServ/config.json Normal file
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{
"LibraryRoot": "./Library",
"DatabaseFile": "ComiServ.db",
"AutoScanPeriodHours": 0.03
}

44
ComiServ/package-lock.json generated Normal file
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{
"name": "ComiServ",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"dependencies": {
"@types/react": "^18.3.4",
"@types/react-dom": "^18.3.0"
}
},
"node_modules/@types/prop-types": {
"version": "15.7.12",
"resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.12.tgz",
"integrity": "sha512-5zvhXYtRNRluoE/jAp4GVsSduVUzNWKkOZrCDBWYtE7biZywwdC2AcEzg+cSMLFRfVgeAFqpfNabiPjxFddV1Q==",
"license": "MIT"
},
"node_modules/@types/react": {
"version": "18.3.4",
"resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.4.tgz",
"integrity": "sha512-J7W30FTdfCxDDjmfRM+/JqLHBIyl7xUIp9kwK637FGmY7+mkSFSe6L4jpZzhj5QMfLssSDP4/i75AKkrdC7/Jw==",
"license": "MIT",
"dependencies": {
"@types/prop-types": "*",
"csstype": "^3.0.2"
}
},
"node_modules/@types/react-dom": {
"version": "18.3.0",
"resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-18.3.0.tgz",
"integrity": "sha512-EhwApuTmMBmXuFOikhQLIBUn6uFg81SwLMOAUgodJF14SOBOCMdU04gDoYi0WOJJHD144TL32z4yDqCW3dnkQg==",
"license": "MIT",
"dependencies": {
"@types/react": "*"
}
},
"node_modules/csstype": {
"version": "3.1.3",
"resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
"integrity": "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw==",
"license": "MIT"
}
}
}

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ComiServ/package.json Normal file
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{
"dependencies": {
"@types/react": "^18.3.4",
"@types/react-dom": "^18.3.0"
}
}