Initial commitwasm-oldserver

7 files changed, 0 insertions, 1213 deletions

diff --git a/Services/ConfigService.cs b/Services/ConfigService.cs
deleted file mode 100644
index ac1f155..0000000
--- a/Services/ConfigService.cs
+++ /dev/null
@@ -1,72 +0,0 @@
-using HyperBooru.ApiModels;
-
-namespace HyperBooru.Services;
-
-public interface IConfigService {
-    public string DataPath               { get; }
-    public string KeyPath                { get; }
-    public string DbConnectionString     { get; }
-    public string MediaBasePath          { get; }
-    public string ThumbnailBasePath      { get; }
-    public string ConvertedMediaBasePath { get; }
-    public bool   EnableOcr              { get; }
-}
-
-public class ConfigService : IConfigService {
-    private IConfiguration config;
-
-    private const string AppName = "HyperBooru";
-
-    public string DataPath {
-        get {
-            #if DEBUG
-            return "Data";
-            #else
-            string? path = config["DataPath"];
-            if(path is not null)
-                return path;
-
-            switch(Environment.OSVersion.Platform) {
-                case PlatformID.Win32NT:
-                    return Path.Join(
-                        Environment.GetFolderPath(Environment.SpecialFolder.CommonApplicationData),
-                        AppName);
-                case PlatformID.Unix:
-                    return $"/var/lib/{AppName.ToLower()}";
-                default:
-                    throw new NotImplementedException(
-                        $"Unknown Operating System: {Environment.OSVersion.Platform}");
-            }
-            #endif
-        }
-    }
-
-    public string KeyPath =>
-        Path.Join(DataPath, "keys");
-
-    public string DbConnectionString =>
-        config.GetConnectionString("DefaultConnection") ??
-            throw new HBException("Unable to get default connection string");
-
-    public string MediaBasePath =>
-        Path.Join(DataPath, "media");
-
-    public string ThumbnailBasePath =>
-        Path.Join(DataPath, "thumb");
-
-    public string ConvertedMediaBasePath =>
-        Path.Join(DataPath, "converted");
-
-    public bool EnableOcr =>
-        bool.TryParse(config["DisableOcr"], out bool x) ? !x : true;
-
-    public ConfigService(IConfiguration config) {
-        this.config = config;
-        InitDirectoryStructure();
-    }
-
-    private void InitDirectoryStructure() {
-        Directory.CreateDirectory(DataPath);
-        Directory.CreateDirectory(MediaBasePath);
-    }
-}
\ No newline at end of file
diff --git a/Services/FeedService.cs b/Services/FeedService.cs
deleted file mode 100644
index 3744e73..0000000
--- a/Services/FeedService.cs
+++ /dev/null
@@ -1,212 +0,0 @@
-using HyperBooru.ApiModels;
-using Microsoft.EntityFrameworkCore;
-
-namespace HyperBooru.Services;
-
-public interface IFeedService {
-    public Media[] LoadChunk(
-        bool selectIngest,
-        bool includeNsfw,
-        Media? key = null,
-        int count = 50,
-        SortOrder sortOrder = SortOrder.ObjectId);
-
-    public Media[] LoadChunk(
-        bool selectIngest,
-        bool includeNsfw,
-        string query,
-        Media? key = null,
-        int count = 50,
-        SortOrder sortOrder = SortOrder.ObjectId);
-
-    public Media[] LoadChunk(
-        bool selectIngest,
-        bool includeNsfw,
-        Guid tagId,
-        Media? key = null,
-        int count = 50,
-        SortOrder sortOrder = SortOrder.ObjectId);
-
-    public Media[] LoadChunk(FeedRequest feedRequest);
-}
-
-public class FeedService : IFeedService {
-    private IDbContextFactory<HBContext> dbFactory;
-
-    public FeedService(IDbContextFactory<HBContext> dbFactory) =>
-        this.dbFactory = dbFactory;
-
-    public Media[] LoadChunk(
-        bool selectIngest,
-        bool includeNsfw,
-        Media? continuationToken,
-        int count,
-        SortOrder sortOrder) => LoadChunkInternal(
-            selectIngest, includeNsfw, null, null, continuationToken?.Guid, count, sortOrder);
-
-    public Media[] LoadChunk(
-        bool selectIngest,
-        bool includeNsfw,
-        string query,
-        Media? continuationToken,
-        int count,
-        SortOrder sortOrder) => LoadChunkInternal(
-            selectIngest, includeNsfw, query, null, continuationToken?.Guid, count, sortOrder);
-
-    public Media[] LoadChunk(
-        bool selectIngest,
-        bool includeNsfw,
-        Guid tagId,
-        Media? continuationToken,
-        int count,
-        SortOrder sortOrder) => LoadChunkInternal(
-            selectIngest, includeNsfw, null, tagId, continuationToken?.Guid, count, sortOrder);
-
-    public Media[] LoadChunk(FeedRequest feedRequest) {
-        switch(feedRequest) {
-            case FeedSearchRequest searchRequest:
-                return LoadChunkInternal(
-                    selectIngest:      searchRequest.SelectIngest,
-                    includeNsfw:       searchRequest.IncludeNsfw,
-                    query:             searchRequest.Query,
-                    tagId:             null,
-                    continuationToken: searchRequest.ContinuationToken,
-                    count:             searchRequest.Count,
-                    sortOrder:         searchRequest.SortOrder);
-            case FeedTagRequest tagRequest:
-                return LoadChunkInternal(
-                    selectIngest:      tagRequest.SelectIngest,
-                    includeNsfw:       tagRequest.IncludeNsfw,
-                    query:             null,
-                    tagId:             tagRequest.TagId,
-                    continuationToken: tagRequest.ContinuationToken,
-                    count:             tagRequest.Count,
-                    sortOrder:         tagRequest.SortOrder);
-            default:
-                return LoadChunkInternal(
-                    selectIngest:      feedRequest.SelectIngest,
-                    includeNsfw:       feedRequest.IncludeNsfw,
-                    query:             null,
-                    tagId:             null,
-                    continuationToken: feedRequest.ContinuationToken,
-                    count:             feedRequest.Count,
-                    sortOrder:         feedRequest.SortOrder);
-        }
-    }
-
-    private Media[] LoadChunkInternal(
-        bool selectIngest,
-        bool includeNsfw,
-        string? query,
-        Guid? tagId,
-        Guid? continuationToken,
-        int count,
-        SortOrder sortOrder) {
-
-        if(selectIngest && !includeNsfw)
-            return Array.Empty<Media>();
-
-        using var db = dbFactory.CreateDbContext();
-
-        IQueryable<Media> media = db.Media
-            .AsSingleQuery()
-            .AsNoTracking()
-            .Include(m => m.Tags)
-            .Include(m => m.CurrentUploadedFile);
-
-        if(!includeNsfw)
-            media = media
-                .Where(m => !TagsThatImply(db, HBContext.NsfwTag)
-                    .Intersect(m.Tags.Select(t => t.TagDefinitionId))
-                    .Any());
-
-        if(selectIngest) {
-            media = media
-                .Where(m => m.Tags
-                    .Select(t => t.TagDefinitionId)
-                        .Contains((int) HBObjectId.IngestTag));
-        } else {
-            media = media
-                .Where(m => !m.Tags
-                    .Select(t => t.TagDefinitionId)
-                        .Contains((int) HBObjectId.IngestTag));
-        }
-
-        if(query is not null) {
-            media = Search(media, query);
-        } else if(tagId is not null) {
-            media = media
-                .Where(m => TagsThatImply(db, (Guid) tagId)
-                    .Intersect(m.Tags.Select(t => t.TagDefinitionId))
-                    .Any());
-        }
-
-        if(continuationToken is not null)
-            media = media
-                .Where(m => m.ObjectId > db.Media.First(m => m.Guid == continuationToken).ObjectId);
-
-        switch(sortOrder) {
-            case SortOrder.ObjectId:
-                media = media.OrderBy(m => m.ObjectId);
-                break;
-            case SortOrder.LastWriteTime:
-                media = media.OrderBy(m => m.CurrentUploadedFile!.LastWriteTime);
-                break;
-            case SortOrder.Random:
-                media = media.OrderBy(m => EF.Functions.Random());
-                break;
-        }
-
-        return media
-            .Take(count)
-            .ToArray();
-    }
-
-    private static IQueryable<Media> Search(IQueryable<Media> media, string query) {
-        // TODO: search implicit tags as well
-
-        query = query.ToLower().Trim();
-
-        return media
-            .Where(m =>
-                (m.ShortDescription != null && m.ShortDescription.ToLower().Contains(query)) ||
-                (m.LongDescription != null && m.LongDescription.ToLower().Contains(query)) ||
-                (m.UploadedFiles.Any(uf => uf.Filename != null && uf.Filename.ToLower().Contains(query))) ||
-                (m.OcrData != null && m.OcrData.SearchableText.ToLower().Contains(query)) ||
-                (m.Tags.Any(t => t.TagDefinition.Name.ToLower().Contains(query))));
-    }
-
-    private static IQueryable<int> TagsThatImply(HBContext db, Guid tagId) =>
-        db.Database.SqlQueryRaw<int>("""
-            WITH RECURSIVE basetag AS (
-                SELECT "ObjectId" FROM "Objects" WHERE "Guid" = {0}
-            ),
-            impliedtags AS (
-                    SELECT
-                        "TagDefinitionObjectId"
-                    FROM
-                        "TagDefinitionTagDefinition"
-                    INNER JOIN
-                        basetag
-                    ON
-                        "ImplicitTagsObjectId" = basetag."ObjectId"
-                UNION
-                    SELECT
-                        "TagDefinitionTagDefinition"."TagDefinitionObjectId"
-                    FROM
-                        "TagDefinitionTagDefinition"
-                    INNER JOIN
-                        impliedtags
-                    ON
-                        impliedtags."TagDefinitionObjectId" = "TagDefinitionTagDefinition"."ImplicitTagsObjectId"
-            )
-                SELECT DISTINCT
-                    "TagDefinitionObjectId" AS "Value"
-                FROM impliedtags
-            UNION
-                SELECT
-                    "ObjectId" AS "Value"
-                FROM
-                    basetag
-            """, tagId);
-}
diff --git a/Services/MediaService.cs b/Services/MediaService.cs
deleted file mode 100644
index e497570..0000000
--- a/Services/MediaService.cs
+++ /dev/null
@@ -1,400 +0,0 @@
-using HyperBooru.ApiModels;
-using ImageMagick;
-using Microsoft.EntityFrameworkCore;
-using MimeDetective;
-using MimeDetective.Definitions;
-using System.Security.Cryptography;
-using System.Text.RegularExpressions;
-
-namespace HyperBooru.Services;
-
-public interface IMediaService {
-    public void SetDescription(
-        Media media,
-        string? shortDescription,
-        string? longDescription);
-
-    public void SetIngest(Media media, bool ingest);
-
-    public Media Create(
-        Stream fileData,
-        string fileName,
-        string? checksum = null,
-        DateTime? lastAccessTime = null,
-        DateTime? lastWriteTime = null,
-        DateTime? createTime = null,
-        string? path = null,
-        PathType? pathType = null,
-        Guid[]? tagIds = null);
-
-    public void Delete(Guid media);
-    public void Delete(Media media);
-    public void DeleteThumbnails(Guid media);
-    public void DeleteThumbnails(Media media);
-    public Stream GetThumbnail(Guid media, int? width, int? height);
-    public Stream GetThumbnail(Media media, int? width, int? height);
-    public Stream GetConverted(Guid mediaId, string mimeType = "image/png");
-    public Stream GetConverted(Media media, string mimeType = "image/png");
-    public string GetPath(Guid media);
-    public string GetPath(Media media);
-
-}
-
-public class MediaService : IMediaService {
-    private readonly Dictionary<string,MagickFormat> FormatMap = new() {
-        ["image/jpeg"] = MagickFormat.Jpeg,
-        ["image/jpg"]  = MagickFormat.Jpg,
-        ["image/png"]  = MagickFormat.Png,
-        ["image/webp"] = MagickFormat.WebP
-    };
-
-    private IDbContextFactory<HBContext> dbFactory;
-    private IConfigService               config;
-
-    private IContentInspector inspector;
-
-    public MediaService(IDbContextFactory<HBContext> dbFactory,
-        IConfigService config) {
-
-        this.dbFactory = dbFactory;
-        this.config    = config;
-
-        ContentInspectorBuilder inspectorBuilder = new() {
-            Definitions =
-                DefaultDefinitions.FileTypes.Images.All()
-                .Union(DefaultDefinitions.FileTypes.Video.All())
-                .ToList()
-        };
-
-        inspector = inspectorBuilder.Build();
-    }
-
-    public void SetIngest(Media media, bool ingest) {
-        using var db = dbFactory.CreateDbContext();
-        media = db.Media
-            .Include(m => m.Tags)
-            .ThenInclude(t => t.TagDefinition)
-            .First(m => m.Guid == media.Guid);
-        var ingestTag = db.TagDefinitions
-            .First(td => td.Guid == HBContext.IngestTag);
-
-        if(ingest) {
-            if(!media.Tags.Select(t => t.TagDefinition.Guid).Contains(HBContext.IngestTag))
-                media.Tags.Add(new(ingestTag));
-        } else {
-            media.Tags.RemoveAll(t => t.TagDefinition.Guid == HBContext.IngestTag);
-        }
-
-        db.SaveChanges();
-    }
-
-    public void SetDescription(
-        Media media,
-        string? shortDescription,
-        string? longDescription) {
-
-        using var db = dbFactory.CreateDbContext();
-        var m = db.Media.First(m => m.Guid == media.Guid);
-
-        shortDescription = shortDescription?.Trim();
-        longDescription  = longDescription?.Trim();
-
-        if(string.IsNullOrEmpty(shortDescription))
-            shortDescription = null;
-        if(string.IsNullOrEmpty(longDescription))
-            longDescription = null;
-
-        m.ShortDescription = shortDescription;
-        m.LongDescription  = longDescription;
-
-        db.SaveChanges();
-    }
-
-    public Media Create(
-        Stream fileData,
-        string fileName,
-        string? checksum = null,
-        DateTime? lastAccessTime = null,
-        DateTime? lastWriteTime = null,
-        DateTime? createTime = null,
-        string? path = null,
-        PathType? pathType = null,
-        Guid[]? tagIds = null) {
-
-        using var db = dbFactory.CreateDbContext();
-        using var transaction = db.Database.BeginTransaction();
-
-        if(fileData.Length == 0)
-            throw new MediaCreateException("File is empty");
-
-        // Calculate the checksum using the in-memory file contents
-        var hash = BitConverter
-            .ToString(MD5.Create().ComputeHash(fileData))
-            .Replace("-", "")
-            .ToLower();
-
-        if(checksum is not null && hash != checksum.ToLower())
-            throw new MediaCreateException("Checksum does not match");
-
-        // Determine the MIME type
-        fileData.Seek(0, SeekOrigin.Begin);
-        var defs = inspector.Inspect(fileData);
-        var mime = defs.ByMimeType().FirstOrDefault()?.MimeType;
-        if(mime is null)
-            throw new MediaCreateException("Unsupported file type");
-
-        // Read the image with ImageMagick to determine the width and height
-        fileData.Seek(0, SeekOrigin.Begin);
-        using var magickImage = new MagickImage(fileData);
-
-        var media = db.Media
-            .Include(m => m.UploadedFiles)
-            .Include(m => m.Tags)
-            .FirstOrDefault(m => m.UploadedFiles.Any(uf => uf.Checksum == hash));
-
-        var fileRecord = new UploadedFile() {
-            Filename         = fileName,
-            Length           = fileData.Length,
-            Checksum         = hash,
-            ChecksumVerified = checksum is not null,
-            MimeType         = mime,
-            Width            = (int) magickImage.Width,
-            Height           = (int) magickImage.Height,
-            UploadTime       = DateTime.UtcNow,
-            LastAccessTime   = lastAccessTime,
-            LastWriteTime    = lastWriteTime,
-            CreateTime       = createTime,
-            Path             = pathType is null ? null : path,
-            PathType         = pathType
-        };
-
-        var tags = Array.Empty<TagDefinition>();
-        if(tagIds is not null) {
-            tagIds = tagIds.Distinct().ToArray();
-
-            tags = db.TagDefinitions
-                .Where(td => tagIds.Contains(td.Guid))
-                .ToArray();
-
-            if(tags.Count() < tagIds.Count()) {
-                var badIds = tagIds
-                    .Where(x => !tags.Select(td => td.Guid).Contains(x))
-                    .Order();
-
-                throw new MediaCreateException(
-                    $"Non-existent tags specified: {string.Join(", ", badIds)}");
-            }
-        }
-
-        if(media is null) {
-            var ingestTagDef = db.TagDefinitions
-                .First(td => td.Guid == HBContext.IngestTag);
-
-            media = new() {
-                UploadedFiles = new() {
-                    fileRecord
-                },
-                Tags = tags is null ? [ new() { TagDefinition = ingestTagDef } ] : tags
-                    .Select(td => new Tag() { TagDefinition = td })
-                    .ToList()
-            };
-
-            using var newFile = File.Create(GetPath(media));
-
-            fileData.Seek(0, SeekOrigin.Begin);
-            fileData.CopyTo(newFile);
-            newFile.Flush();
-
-            db.Media.Add(media);
-            db.SaveChanges();
-            media.CurrentUploadedFile = fileRecord;
-            db.SaveChanges();
-        } else {
-            var fileHashes = media.UploadedFiles
-                .Select(uf => GetUploadedFileHash(uf));
-            // Only add the uploaded file record if it contains new information
-            if(!fileHashes.Contains(GetUploadedFileHash(fileRecord)))
-                media.UploadedFiles.Add(fileRecord);
-            // Add new tags if needed
-            var missingTags = tags
-                .Where(td => !media.Tags.Select(t => t.TagDefinition.Guid).Contains(td.Guid));
-            media.Tags.AddRange(missingTags.Select(td => new Tag() { TagDefinition = td }));
-            db.Update(media);
-            db.SaveChanges();
-        }
-
-        transaction.Commit();
-
-        return media;
-    }
-
-    public void Delete(Guid media) {
-        using var db = dbFactory.CreateDbContext();
-        var m = db.Media.First(m => m.Guid == media);
-
-        var path = Path.Join(
-            config.MediaBasePath,
-            m.Guid.ToString().Substring(0, 2),
-            m.Guid.ToString().Substring(2, 2),
-            m.Guid.ToString());
-
-        try {
-            var fileInfo = new FileInfo(path);
-            fileInfo.Delete();
-            fileInfo.Directory?.Delete();
-            fileInfo.Directory?.Parent?.Delete();
-        } catch(IOException) {}
-
-        try {
-            DeleteThumbnails(media);
-        } catch {}
-
-        db.Media.Remove(m);
-        db.SaveChanges();
-    }
-
-    public void Delete(Media media) =>
-        Delete(media.Guid);
-
-    public void DeleteThumbnails(Guid media) {
-        var dir = new DirectoryInfo(Path.Join(
-            config.ThumbnailBasePath,
-            media.ToString().Substring(0, 2),
-            media.ToString().Substring(2, 2)));
-
-        var pattern = new Regex($"^{media}-[0-9]+-[0-9]+$");
-        var toDelete = dir.GetFiles()
-            .Where(f => pattern.IsMatch(f.Name))
-            .ToList();
-
-        List<Exception> exceptions = new();
-
-        foreach(var file in toDelete) {
-            try {
-                file.Delete();
-            } catch(Exception e) {
-                exceptions.Add(e);
-            }
-        }
-
-        try {
-            dir.Delete();
-            dir.Parent?.Delete();
-        } catch(Exception e) {
-            exceptions.Add(e);
-        }
-
-        // TODO: wrap the AggregateException in a ThumbnailException
-        if(exceptions.Count() > 1)
-            throw new AggregateException(exceptions);
-    }
-
-    public void DeleteThumbnails(Media media) =>
-        DeleteThumbnails(media.Guid);
-
-    public Stream GetThumbnail(Guid mediaId, int? width, int? height) {
-        if(width is null && height is null)
-            throw new ThumbnailException(
-                "Both width and height cannot be null!",
-                mediaId);
-
-        var thumbPath = GetThumbnailPath(mediaId, width, height);
-
-        if(File.Exists(thumbPath))
-            return System.IO.File.OpenRead(thumbPath);
-
-        if(!File.Exists(GetPath(mediaId)))
-            throw new ObjectNotFoundException(mediaId);
-
-        using var image = new MagickImage(GetPath(mediaId));
-
-        if(width > image.Width || height > image.Height) {
-            width  = (int) image.Width;
-            height = (int) image.Height;
-        }
-
-        image.Thumbnail((uint) (width ?? -1), (uint) (height ?? -1));
-        image.Write(thumbPath, MagickFormat.Jpeg);
-
-        return System.IO.File.OpenRead(thumbPath);
-    }
-
-    public Stream GetConverted(Guid mediaId, string mimeType) {
-        if(!FormatMap.TryGetValue(mimeType, out var format))
-            throw new MediaException($"Cannot convert to unknown format ({mimeType})", mediaId);
-
-        var convertedPath = GetConvertedPath(mediaId, mimeType);
-
-        if(File.Exists(convertedPath))
-            return System.IO.File.OpenRead(convertedPath);
-
-        if(!File.Exists(GetPath(mediaId)))
-            throw new ObjectNotFoundException(mediaId);
-
-        using var image = new MagickImage(GetPath(mediaId));
-        image.Write(convertedPath, format);
-
-        return System.IO.File.OpenRead(convertedPath);
-    }
-
-    public Stream GetThumbnail(Media media, int? width, int? height) =>
-        GetThumbnail(media.Guid, width, height);
-
-    public Stream GetConverted(Media media, string mimeType) =>
-        GetConverted(media.Guid, mimeType);
-
-    public string GetPath(Guid mediaId) {
-        var fileInfo = new FileInfo(
-            Path.Join(
-                config.MediaBasePath,
-                mediaId.ToString().Substring(0, 2),
-                mediaId.ToString().Substring(2, 2),
-                mediaId.ToString()));
-
-        Directory.CreateDirectory(fileInfo.Directory!.FullName);
-        return fileInfo.FullName;
-    }
-
-    public string GetThumbnailPath(Guid mediaId, int? width, int? height) {
-        if(width is null && height is null)
-            throw new ThumbnailException(
-                "Both width and height cannot be null!",
-                mediaId);
-
-        var fileInfo = new FileInfo(Path.Join(
-            config.ThumbnailBasePath,
-            mediaId.ToString().Substring(0, 2),
-            mediaId.ToString().Substring(2, 2),
-            $"{mediaId.ToString()}-{(width ?? 0)}-{(height ?? 0)}"));
-
-        Directory.CreateDirectory(fileInfo.Directory!.FullName);
-        return fileInfo.FullName;
-    }
-
-    public string GetConvertedPath(Guid mediaId, string mimeType) {
-        var fileInfo = new FileInfo(Path.Join(
-            config.ConvertedMediaBasePath,
-            mediaId.ToString().Substring(0, 2),
-            mediaId.ToString().Substring(2, 2),
-            $"{mediaId.ToString()}-{mimeType.Split('/')[1]}"));
-
-        Directory.CreateDirectory(fileInfo.Directory!.FullName);
-        return fileInfo.FullName;
-    }
-
-    public string GetPath(Media media) =>
-        GetPath(media.Guid);
-
-    public string GetThumbnailPath(Media media, int? width, int? height) =>
-        GetThumbnailPath(media.Guid, width, height);
-
-    public string GetConvertedPath(Media media, string mimeType) =>
-        GetConvertedPath(media.Guid, mimeType);
-
-    private int GetUploadedFileHash(UploadedFile uf) => (
-        uf.CreateTime,
-        uf.LastWriteTime,
-        uf.Filename,
-        uf.Length,
-        uf.Checksum).GetHashCode();
-}
diff --git a/Services/OcrService.cs b/Services/OcrService.cs
deleted file mode 100644
index d43db2e..0000000
--- a/Services/OcrService.cs
+++ /dev/null
@@ -1,128 +0,0 @@
-using HyperBooru.Util;
-using Microsoft.EntityFrameworkCore;
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-using System.Text.RegularExpressions;
-using Tesseract;
-
-namespace HyperBooru.Services;
-
-public class OcrService : IHostedService {
-    private readonly string[] InvalidMimeTypes = [ "image/heic", "image/webp" ];
-
-    private readonly TimeSpan ProcessInterval = TimeSpan.FromMinutes(30);
-    private readonly TimeSpan StartupDelay    = TimeSpan.FromSeconds(30);
-
-    private readonly Regex SpaceRegex = new(@"[^0-9a-z]+", RegexOptions.Compiled);
-
-    private Task? task;
-    private CancellationTokenSource cts = new();
-
-    private Timer timer;
-
-    private IConfigService               configService;
-    private IServiceScopeFactory         scopeFactory;
-    private ILogger<OcrService>          logger;
-    private IDbContextFactory<HBContext> dbFactory;
-
-    public OcrService(
-        IConfigService configService,
-        IServiceScopeFactory scopeFactory,
-        ILogger<OcrService> logger,
-        IDbContextFactory<HBContext> dbFactory) {
-
-        this.configService = configService;
-        this.scopeFactory  = scopeFactory;
-        this.logger        = logger;
-        this.dbFactory     = dbFactory;
-
-        timer = new((object? state) => {
-            if(task is not null && !task.IsCompleted)
-                return;
-            cts  = new();
-            task = ProcessAllAsync(cts.Token);
-        });
-    }
-
-    public Task StartAsync(CancellationToken ct) {
-        if(configService.EnableOcr) {
-            logger.LogInformation("Service starting...");
-            timer.Change(StartupDelay, ProcessInterval);
-        }
-
-        return Task.CompletedTask;
-    }
-
-    public Task StopAsync(CancellationToken ct) {
-        logger.LogInformation("Service stopping...");
-        timer.Change(Timeout.Infinite, Timeout.Infinite);
-        cts.Cancel();
-        return Task.CompletedTask;
-    }
-
-    async Task ProcessAllAsync(CancellationToken ct) {
-        using var scope = scopeFactory.CreateScope();
-        var mediaService = scope.ServiceProvider
-            .GetRequiredService<IMediaService>();
-
-        using var db = dbFactory.CreateDbContext();
-        Guid[] guids = db.Media
-            .AsNoTracking()
-            .Include(m => m.CurrentUploadedFile)
-            .Include(m => m.OcrData)
-            .Where(m => m.OcrData == null)
-            .Where(m => m.CurrentUploadedFile!.MimeType.Contains("image/"))
-            .Where(m => !InvalidMimeTypes.Contains(m.CurrentUploadedFile!.MimeType))
-            .Select(m => m.Guid)
-            .ToArray();
-        db.Dispose();
-
-        logger.LogInformation($"Performing OCR pass on {guids.Count()} media items");
-
-        var factory = new TaskFactory(new LimitedConcurrencyTaskScheduler());
-        var tasks   = new List<Task>();
-
-        var stopwatch = Stopwatch.StartNew();
-
-        foreach(var guid in guids)
-            tasks.Add(factory.StartNew(() => Process(guid, mediaService), ct));
-
-        await Task.WhenAll(tasks);
-        stopwatch.Stop();
-
-        var time = stopwatch.Elapsed.ToStringHumanReadable();
-        logger.LogInformation(
-            $"Performed OCR pass on {guids.Count()} media items in {time}");
-    }
-
-    private void Process(Guid media, IMediaService mediaService) {
-        logger.LogDebug($"Performing OCR on media item {media}");
-
-        using var db = dbFactory.CreateDbContext();
-        var m = db.Media
-            .Include(m => m.OcrData)
-            .First(m => m.Guid == media);
-
-        OcrData o = m.OcrData ?? new();
-
-        using var engine = new TesseractEngine("tessdata", "eng", EngineMode.Default);
-        using var image  = Pix.LoadFromFile(mediaService.GetPath(m));
-        engine.SetVariable("debug_file", NullFile);
-
-        o.Timestamp      = DateTime.UtcNow;
-        o.Text           = engine.Process(image).GetText().Trim();
-        o.SearchableText = SpaceRegex.Replace(o.Text.ToLower(), " ").Trim();
-
-        m.OcrData = o;
-        db.SaveChanges();
-    }
-
-    private string NullFile {
-        get {
-            if(RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
-                return "NUL";
-            else
-                return "/dev/null";
-        }
-    }
-}
diff --git a/Services/SourceService.cs b/Services/SourceService.cs
deleted file mode 100644
index d145346..0000000
--- a/Services/SourceService.cs
+++ /dev/null
@@ -1,20 +0,0 @@
-using System.Text.RegularExpressions;
-
-namespace HyperBooru.Services;
-
-public interface ISourceService {
-    public string? GetUrlFromFilename(string filename);
-}
-
-public class SourceService : ISourceService {
-    private Regex PixivRegex =
-        new(@"^([0-9]+)_p[0-9]+(_master1200)?\.[^.]+$", RegexOptions.Compiled);
-
-    public string? GetUrlFromFilename(string filename) {
-        var pixivMatch = PixivRegex.Match(filename);
-        if(pixivMatch.Success)
-            return $"https://pixiv.net/en/artworks/{pixivMatch.Groups[1].Value}";
-
-        return null;
-    }
-}
diff --git a/Services/TagService.cs b/Services/TagService.cs
deleted file mode 100644
index f7b91dc..0000000
--- a/Services/TagService.cs
+++ /dev/null
@@ -1,305 +0,0 @@
-using HyperBooru.ApiModels;
-using Microsoft.EntityFrameworkCore;
-
-namespace HyperBooru.Services;
-
-public interface ITagService {
-    public void AddTag(Guid obj, Guid tagDef);
-    public void AddTag(HBObject obj, TagDefinition tagDef);
-    public void RemoveTag(Guid obj, Guid tagDef);
-    public void RemoveTag(HBObject obj, TagDefinition tagDef);
-    public void SetImplicitTags(TagDefinition tagDef, TagDefinition[] implicitTagDefs);
-    public void SetImplicitTags(Guid tagDef, Guid[] implicitTagDefs);
-    public void AddImplicitTag(Guid tagDef, Guid implicitTagDef);
-    public void AddImplicitTag(TagDefinition tagDef, TagDefinition implicitTagDef);
-    public void RemoveImplicitTag(Guid tagDef, Guid implicitTagDef);
-    public void RemoveImplicitTag(TagDefinition tagDef, TagDefinition implicitTagDef);
-    public void CreateTagDefinition(string name, string? @namespace = null, string? alias = null);
-    public void DeleteTagDefinition(Guid tagDef);
-    public void DeleteTagDefinition(TagDefinition tagDef);
-    public void UpdateTagDefinition(Guid tagDef, string name, string? @namespace = null, string? alias = null);
-    public void UpdateTagDefinition(TagDefinition tagDef, string name, string? @namespace = null, string? alias = null);
-    public (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(Guid obj);
-    public (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(HBObject obj);
-    public (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(TagDefinition tagDef);
-    public TagDefinition[] TagsThatImply(Guid tagDef);
-    public TagDefinition[] TagsThatImply(TagDefinition tagDef);
-}
-
-public class TagService : ITagService {
-    private IDbContextFactory<HBContext> dbFactory;
-
-    public TagService(IDbContextFactory<HBContext> dbFactory) =>
-        this.dbFactory = dbFactory;
-
-    public void AddTag(Guid obj, Guid tagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tag = db.TagDefinitions.First(td => td.Guid == tagDef);
-
-        db.Objects
-            .Include(o => o.Tags)
-            .ThenInclude(t => t.TagDefinition)
-            .Where(o => !o.Tags.Select(t => t.TagDefinition.Guid).Contains(tagDef))
-            .FirstOrDefault(o => o.Guid == obj)?
-            .Tags
-            .Add(new(tag));
-
-        db.SaveChanges();
-    }
-
-    public void AddTag(HBObject obj, TagDefinition tagDef) =>
-        AddTag(obj.Guid, tagDef.Guid);
-
-    public void RemoveTag(Guid obj, Guid tagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        db.Objects
-            .Include(o => o.Tags)
-            .ThenInclude(t => t.TagDefinition)
-            .First(o => o.Guid == obj)
-            .Tags
-            .RemoveAll(t => t.TagDefinition.Guid == tagDef);
-
-        db.SaveChanges();
-    }
-
-    public void RemoveTag(HBObject obj, TagDefinition tagDef) =>
-        RemoveTag(obj.Guid, tagDef.Guid);
-
-    public void SetImplicitTags(Guid tagDef, Guid[] implicitTagDefs) {
-        using var db = dbFactory.CreateDbContext();
-        using var transaction = db.Database.BeginTransaction();
-
-        var tag = db.TagDefinitions
-            .Include(td => td.ImplicitTags)
-            .First(td => td.Guid == tagDef);
-
-        tag.ImplicitTags.RemoveAll(td => !implicitTagDefs.Contains(td.Guid));
-        tag.ImplicitTags.AddRange(
-            db.TagDefinitions
-                .Where(td => implicitTagDefs.Contains(td.Guid))
-                .Where(td => !tag.ImplicitTags
-                    .Select(td => td.Guid)
-                    .Contains(td.Guid)));
-
-        db.SaveChanges();
-        transaction.Commit();
-    }
-
-    public void SetImplicitTags(TagDefinition tagDef, TagDefinition[] implicitTagDefs) =>
-        SetImplicitTags(tagDef.Guid, implicitTagDefs.Select(td => td.Guid).ToArray());
-
-    public void AddImplicitTag(Guid tagDef, Guid implicitTagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tag = db.TagDefinitions
-            .Include(td => td.ImplicitTags)
-            .First(td => td.Guid == tagDef);
-        var implicitTag = db.TagDefinitions.First(td => td.Guid == implicitTagDef);
-
-        tag.ImplicitTags.Add(implicitTag);
-        db.SaveChanges();
-    }
-
-    public void AddImplicitTag(TagDefinition tagDef, TagDefinition implicitTagDef) =>
-        AddImplicitTag(tagDef, implicitTagDef);
-
-    public void RemoveImplicitTag(Guid tagDef, Guid implicitTagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tag = db.TagDefinitions
-            .Include(td => td.ImplicitTags)
-            .First(td => td.Guid == tagDef);
-
-        tag.ImplicitTags.RemoveAll(td => td.Guid == implicitTagDef);
-        db.SaveChanges();
-    }
-
-    public void RemoveImplicitTag(TagDefinition tagDef, TagDefinition implicitTagDef) =>
-        RemoveImplicitTag(tagDef, implicitTagDef);
-
-    public void CreateTagDefinition(string name, string? @namespace = null, string? alias = null) {
-        using var db = dbFactory.CreateDbContext();
-
-        if(string.IsNullOrEmpty(@namespace))
-            @namespace = null;
-        if(string.IsNullOrEmpty(alias))
-            alias = null;
-
-        // Remove leading and trailing whitespace
-        name       = name.Trim();
-        @namespace = @namespace?.Trim();
-        alias      = alias?.Trim();
-
-        TagDefinition tagDef = new() {
-            Source    = TagSource.UserTag,
-            Namespace = @namespace,
-            Name      = name,
-            Alias     = alias
-        };
-
-        bool nameExists  = db.TagDefinitions.Any(td => td.Name.ToLower() == name.ToLower());
-        bool aliasExists = false;
-        if(alias is not null)
-            aliasExists = db.TagDefinitions
-                .Where(td => td.Alias != null)
-                .Any(td => td.Alias!.ToLower() == alias.ToLower());
-        if(nameExists || aliasExists)
-            throw new TagDuplicateException(nameExists, aliasExists);
-
-        if(!db.TagDefinitions.Contains(tagDef))
-            db.TagDefinitions.Add(tagDef);
-        db.SaveChanges();
-    }
-
-    public void DeleteTagDefinition(Guid tagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tag = db.TagDefinitions.First(td => td.Guid == tagDef);
-
-        using var transaction = db.Database.BeginTransaction();
-
-        db.Tags.RemoveRange(
-            db.Tags
-                .Include(t => t.TagDefinition)
-                .Where(t => t.TagDefinition.Guid == tagDef));
-        db.TagDefinitions.Remove(tag);
-        db.SaveChanges();
-
-        transaction.Commit();
-    }
-
-    public void DeleteTagDefinition(TagDefinition tagDef) =>
-        DeleteTagDefinition(tagDef.Guid);
-
-    public void UpdateTagDefinition(Guid tagDef, string name, string? @namespace = null, string? alias = null) {
-        using var db = dbFactory.CreateDbContext();
-
-        if(string.IsNullOrEmpty(@namespace))
-            @namespace = null;
-        if(string.IsNullOrEmpty(alias))
-            alias = null;
-
-        // Remove leading and trailing whitespace
-        name       = name.Trim();
-        @namespace = @namespace?.Trim();
-        alias      = alias?.Trim();
-
-        var tag = db.TagDefinitions.First(td => td.Guid == tagDef);
-
-        TagDefinition? nameExisting = db.TagDefinitions.FirstOrDefault(td => td.Name.ToLower() == name.ToLower());
-        TagDefinition? aliasExisting = null;
-        if(alias is not null)
-            aliasExisting = db.TagDefinitions
-                .Where(td => td.Alias != null)
-                .FirstOrDefault(td => td.Alias!.ToLower() == alias.ToLower());
-        bool nameExists  = nameExisting  is not null && nameExisting  != tag;
-        bool aliasExists = aliasExisting is not null && aliasExisting != tag;
-        if(nameExists || aliasExists)
-            throw new TagDuplicateException(nameExists, aliasExists);
-
-        tag.Name      = name;
-        tag.Namespace = @namespace;
-        tag.Alias     = alias;
-
-        db.SaveChanges();
-    }
-
-    public void UpdateTagDefinition(TagDefinition tagDef, string name, string? @namespace = null, string? alias = null) =>
-        UpdateTagDefinition(tagDef.Guid, name, @namespace, alias);
-
-    private (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(IEnumerable<TagDefinition> tagDefs) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tagGuids = tagDefs
-            .Select(td => td.Guid)
-            .ToArray();
-
-        // Query all tag definitions
-        var allTags = db.TagDefinitions
-            .Include(td => td.ImplicitTags)
-            .ToArray();
-
-        var tags = new List<TagDefinition>(
-            allTags.IntersectBy(
-                tagGuids,
-                td => td.Guid));
-
-        while(true) {
-            var toAdd = tags
-                .SelectMany(td => td.ImplicitTags)
-                .ExceptBy(tags.Select(td => td.Guid), td => td.Guid)
-                .ToArray();
-
-            if(toAdd.Count() == 0)
-                break;
-
-            tags.AddRange(toAdd);
-        }
-
-        return tags
-            .Select(td => new ValueTuple<TagDefinition, bool>(td, !tagGuids.Contains(td.Guid)))
-            .ToArray();
-    }
-
-    public (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(Guid obj) {
-        using var db = dbFactory.CreateDbContext();
-
-        // Query a list of tag GUIDs for this object
-        var tags = db.Objects
-            .Include(o => o.Tags)
-            .ThenInclude(t => t.TagDefinition)
-            .First(o => o.Guid == obj)
-            .Tags
-            .Select(t => t.TagDefinition)
-            .ToArray();
-
-        return GetAllTags(tags);
-    }
-
-
-    public (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(HBObject obj) =>
-        GetAllTags(obj.Guid);
-
-    public (TagDefinition tagDefinition, bool isImplicit)[] GetAllTags(TagDefinition tagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tags = db.TagDefinitions
-            .Include(td => td.ImplicitTags)
-            .First(td => td.Guid == tagDef.Guid)
-            .ImplicitTags
-            .ToArray();
-
-        return GetAllTags(tags);
-    }
-
-    public TagDefinition[] TagsThatImply(Guid tagDef) {
-        using var db = dbFactory.CreateDbContext();
-
-        var tagDefs = db.TagDefinitions
-            .Include(td => td.ImplicitTags)
-            .ToArray();
-
-        var tags = new List<TagDefinition>() {
-            db.TagDefinitions.First(td => td.Guid == tagDef)
-        };
-
-        while(true) {
-            var toAdd = tagDefs
-                .Where(td => td.ImplicitTags.Select(it => it.Guid).Intersect(tags.Select(td => td.Guid)).Any())
-                .ExceptBy(tags.Select(td => td.Guid), td => td.Guid)
-                .ToArray();
-
-            if(toAdd.Count() == 0)
-                break;
-
-            tags.AddRange(toAdd);
-        }
-
-        return tags.ToArray();
-    }
-
-    public TagDefinition[] TagsThatImply(TagDefinition tagDef) =>
-        TagsThatImply(tagDef.Guid);
-}
diff --git a/Services/UserService.cs b/Services/UserService.cs
deleted file mode 100644
index 9e79dc6..0000000
--- a/Services/UserService.cs
+++ /dev/null
@@ -1,76 +0,0 @@
-using Microsoft.AspNetCore.Cryptography.KeyDerivation;
-
-namespace HyperBooru.Services;
-
-public interface IUserService {
-    public UserSessionState UserSessionState { get; }
-}
-
-public class UserService : IUserService {
-    public UserSessionState UserSessionState =>
-        globalUserService.GetSessionState(httpContext.Session.Id);
-
-    private IHttpContextAccessor         httpContextAccessor;
-    private IGlobalUserService           globalUserService;
-
-    private HttpContext httpContext =>
-        httpContextAccessor.HttpContext!;
-
-    public UserService(
-        IHttpContextAccessor httpContextAccessor,
-        IGlobalUserService globalUserService) {
-
-        this.httpContextAccessor = httpContextAccessor;
-        this.globalUserService   = globalUserService;
-
-        // HTTP context session states are discarded if no values
-        // are set. Set a dummy value so that the session state
-        // will not be discarded later when we actually need it.
-        httpContext.Session.SetInt32("Persist", 1);
-    }
-
-    public static string HashPassword(string password) =>
-        Convert.ToBase64String(
-            KeyDerivation.Pbkdf2(
-                password,
-                Array.Empty<byte>(),
-                KeyDerivationPrf.HMACSHA512,
-                100_000,
-                512 / 8));
-}
-
-public interface IGlobalUserService {
-    public UserSessionState GetSessionState(string id);
-}
-
-public class GlobalUserService : IGlobalUserService {
-    // TODO: prune this list periodically
-    private Dictionary<string, UserSessionState> sessionStates = new();
-
-    public UserSessionState GetSessionState(string id) {
-        sessionStates.TryGetValue(id, out var state);
-
-        if(state is null) {
-            state = new();
-            sessionStates[id] = state;
-        }
-
-        return state;
-    }
-}
-
-public record UserSessionState {
-    public event UserSessionStateChange OnStateChange;
-
-    public bool ShowNsfw {
-        get => showNsfw;
-        set {
-            showNsfw = value;
-            OnStateChange.Invoke(this);
-        }
-    }
-
-    private bool showNsfw = false;
-}
-
-public delegate void UserSessionStateChange(UserSessionState sessionState);