Files
aliasvault/apps/server/Databases/AliasClientDb/AliasClientDbContext.cs
2025-12-03 17:19:29 +01:00

363 lines
13 KiB
C#

//-----------------------------------------------------------------------
// <copyright file="AliasClientDbContext.cs" company="aliasvault">
// Copyright (c) aliasvault. All rights reserved.
// Licensed under the AGPLv3 license. See LICENSE.md file in the project root for full license information.
// </copyright>
//-----------------------------------------------------------------------
namespace AliasClientDb;
using System.Globalization;
using Microsoft.Data.Sqlite;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
using Microsoft.Extensions.Configuration;
/// <summary>
/// The AliasClientDbContext class.
/// </summary>
public class AliasClientDbContext : DbContext
{
/// <summary>
/// Initializes a new instance of the <see cref="AliasClientDbContext"/> class.
/// </summary>
public AliasClientDbContext()
{
}
/// <summary>
/// Initializes a new instance of the <see cref="AliasClientDbContext"/> class.
/// </summary>
/// <param name="sqliteConnection">The SQLite connection to use to connect to the SQLite database.</param>
/// <param name="logAction">The action to perform for logging.</param>
public AliasClientDbContext(SqliteConnection sqliteConnection, Action<string> logAction)
: base(GetOptions(sqliteConnection, logAction))
{
}
/// <summary>
/// Initializes a new instance of the <see cref="AliasClientDbContext"/> class.
/// </summary>
/// <param name="options">DbContextOptions to use.</param>
public AliasClientDbContext(DbContextOptions<AliasClientDbContext> options)
: base(options)
{
}
/// <summary>
/// Gets or sets the Attachment DbSet.
/// </summary>
public DbSet<Attachment> Attachments { get; set; }
/// <summary>
/// Gets or sets the EncryptionKey DbSet.
/// </summary>
public DbSet<EncryptionKey> EncryptionKeys { get; set; }
/// <summary>
/// Gets or sets the Settings DbSet.
/// </summary>
public DbSet<Setting> Settings { get; set; }
/// <summary>
/// Gets or sets the TotpCodes DbSet.
/// </summary>
public DbSet<TotpCode> TotpCodes { get; set; }
/// <summary>
/// Gets or sets the Passkeys DbSet.
/// </summary>
public DbSet<Passkey> Passkeys { get; set; }
/// <summary>
/// Gets or sets the Items DbSet.
/// </summary>
public DbSet<Item> Items { get; set; }
/// <summary>
/// Gets or sets the Folders DbSet.
/// </summary>
public DbSet<Folder> Folders { get; set; }
/// <summary>
/// Gets or sets the Logos DbSet.
/// </summary>
public DbSet<Logo> Logos { get; set; }
/// <summary>
/// Gets or sets the FieldDefinitions DbSet.
/// </summary>
public DbSet<FieldDefinition> FieldDefinitions { get; set; }
/// <summary>
/// Gets or sets the FieldValues DbSet.
/// </summary>
public DbSet<FieldValue> FieldValues { get; set; }
/// <summary>
/// Gets or sets the FieldHistories DbSet.
/// </summary>
public DbSet<FieldHistory> FieldHistories { get; set; }
/// <summary>
/// Gets or sets the Tags DbSet.
/// </summary>
public DbSet<Tag> Tags { get; set; }
/// <summary>
/// Gets or sets the ItemTags DbSet.
/// </summary>
public DbSet<ItemTag> ItemTags { get; set; }
/// <summary>
/// The OnModelCreating method.
/// </summary>
/// <param name="modelBuilder">ModelBuilder instance.</param>
protected override void OnModelCreating(ModelBuilder modelBuilder)
{
base.OnModelCreating(modelBuilder);
foreach (var entity in modelBuilder.Model.GetEntityTypes())
{
foreach (var property in entity.GetProperties())
{
// SQLite does not support varchar(max) so we use TEXT.
if (property.ClrType == typeof(string) && property.GetMaxLength() == null)
{
property.SetColumnType("TEXT");
}
}
}
// Configure Attachment - Item relationship
modelBuilder.Entity<Attachment>()
.HasOne(l => l.Item)
.WithMany(c => c.Attachments)
.HasForeignKey(l => l.ItemId)
.OnDelete(DeleteBehavior.Cascade);
// Configure TotpCode - Item relationship
modelBuilder.Entity<TotpCode>()
.HasOne(l => l.Item)
.WithMany(c => c.TotpCodes)
.HasForeignKey(l => l.ItemId)
.OnDelete(DeleteBehavior.Cascade);
// Configure Passkey - Item relationship
modelBuilder.Entity<Passkey>()
.HasOne(p => p.Item)
.WithMany(c => c.Passkeys)
.HasForeignKey(p => p.ItemId)
.OnDelete(DeleteBehavior.Cascade);
// Configure Passkey indexes
modelBuilder.Entity<Passkey>()
.HasIndex(e => e.RpId);
modelBuilder.Entity<Passkey>()
.Property(e => e.RpId)
.UseCollation("NOCASE");
// Configure Item - Logo relationship
modelBuilder.Entity<Item>()
.HasOne(i => i.Logo)
.WithMany(l => l.Items)
.HasForeignKey(i => i.LogoId)
.OnDelete(DeleteBehavior.SetNull);
// Configure Item - Folder relationship
modelBuilder.Entity<Item>()
.HasOne(i => i.Folder)
.WithMany(f => f.Items)
.HasForeignKey(i => i.FolderId)
.OnDelete(DeleteBehavior.SetNull);
// Configure Folder - ParentFolder relationship
modelBuilder.Entity<Folder>()
.HasOne(f => f.ParentFolder)
.WithMany(f => f.ChildFolders)
.HasForeignKey(f => f.ParentFolderId)
.OnDelete(DeleteBehavior.Cascade);
// Configure Logo unique index on Source
modelBuilder.Entity<Logo>()
.HasIndex(l => l.Source)
.IsUnique();
// Configure FieldValue - Item relationship
modelBuilder.Entity<FieldValue>()
.HasOne(fv => fv.Item)
.WithMany(i => i.FieldValues)
.HasForeignKey(fv => fv.ItemId)
.OnDelete(DeleteBehavior.Cascade);
// Configure FieldValue - FieldDefinition relationship (nullable for system fields)
modelBuilder.Entity<FieldValue>()
.HasOne(fv => fv.FieldDefinition)
.WithMany(fd => fd.FieldValues)
.HasForeignKey(fv => fv.FieldDefinitionId)
.OnDelete(DeleteBehavior.Cascade)
.IsRequired(false); // Nullable for system fields
// Configure FieldHistory - FieldDefinition relationship
modelBuilder.Entity<FieldHistory>()
.HasOne(fh => fh.FieldDefinition)
.WithMany(fd => fd.FieldHistories)
.HasForeignKey(fh => fh.FieldDefinitionId)
.OnDelete(DeleteBehavior.Cascade);
// Configure indexes for FieldValue
modelBuilder.Entity<FieldValue>()
.HasIndex(fv => fv.ItemId);
modelBuilder.Entity<FieldValue>()
.HasIndex(fv => fv.FieldDefinitionId);
modelBuilder.Entity<FieldValue>()
.HasIndex(fv => fv.FieldKey); // Index for system field lookups
modelBuilder.Entity<FieldValue>()
.HasIndex(fv => new { fv.ItemId, fv.FieldDefinitionId, fv.Weight });
modelBuilder.Entity<FieldValue>()
.HasIndex(fv => new { fv.ItemId, fv.FieldKey }); // Composite index for system field queries
// Configure indexes for FieldHistory
modelBuilder.Entity<FieldHistory>()
.HasIndex(fh => fh.ItemId);
modelBuilder.Entity<FieldHistory>()
.HasIndex(fh => fh.FieldDefinitionId);
// FieldDefinition indexes (FieldKey removed - custom fields use GUID only)
// Configure indexes for Folder
modelBuilder.Entity<Folder>()
.HasIndex(f => f.ParentFolderId);
// Configure ItemTag - Item relationship
modelBuilder.Entity<ItemTag>()
.HasOne(it => it.Item)
.WithMany(i => i.ItemTags)
.HasForeignKey(it => it.ItemId)
.OnDelete(DeleteBehavior.Cascade);
// Configure ItemTag - Tag relationship
modelBuilder.Entity<ItemTag>()
.HasOne(it => it.Tag)
.WithMany(t => t.ItemTags)
.HasForeignKey(it => it.TagId)
.OnDelete(DeleteBehavior.Cascade);
// Configure indexes for Tag
modelBuilder.Entity<Tag>()
.HasIndex(t => t.Name);
// Configure indexes for ItemTag
modelBuilder.Entity<ItemTag>()
.HasIndex(it => it.ItemId);
modelBuilder.Entity<ItemTag>()
.HasIndex(it => it.TagId);
// Configure unique index for ItemTag to prevent duplicate tag assignments
modelBuilder.Entity<ItemTag>()
.HasIndex(it => new { it.ItemId, it.TagId })
.IsUnique();
}
/// <summary>
/// Sets up the connection string if it is not already configured.
/// </summary>
/// <param name="optionsBuilder">DbContextOptionsBuilder instance.</param>
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
// If the options are not already configured, use the appsettings.json file.
if (!optionsBuilder.IsConfigured)
{
var configuration = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json")
.Build();
optionsBuilder
.UseSqlite(configuration.GetConnectionString("AliasClientDbContext"))
.UseLazyLoadingProxies();
// Log queries made as debug output.
optionsBuilder.LogTo(Console.WriteLine);
}
base.OnConfiguring(optionsBuilder);
}
/// <summary>
/// Gets the options for the AliasClientDbContext.
/// </summary>
/// <param name="connection">The SQLite connection to use to connect to the SQLite database.</param>
/// <param name="logAction">The action to perform for logging.</param>
/// <returns>The options for the AliasClientDbContext.</returns>
private static DbContextOptions<AliasClientDbContext> GetOptions(SqliteConnection connection, Action<string> logAction)
{
var optionsBuilder = new DbContextOptionsBuilder<AliasClientDbContext>();
optionsBuilder.UseSqlite(connection);
optionsBuilder.LogTo(logAction, new[] { DbLoggerCategory.Database.Command.Name });
return optionsBuilder.Options;
}
/// <summary>
/// Converts a DateTime to a string in the standard format: "yyyy-MM-dd HH:mm:ss.fff" (23 characters with milliseconds).
/// This format ensures SQLite native support, consistent precision, and proper sorting.
/// </summary>
/// <param name="v">The DateTime to convert.</param>
/// <returns>The string representation of the DateTime.</returns>
private static string DateTimeToString(DateTime v)
{
return v == DateTime.MinValue ? string.Empty : v.ToString("yyyy-MM-dd HH:mm:ss.fff", CultureInfo.InvariantCulture);
}
/// <summary>
/// Converts a string to a DateTime.
/// </summary>
/// <param name="v">The string to convert.</param>
/// <returns>The DateTime representation of the string.</returns>
private static DateTime StringToDateTime(string v)
{
if (string.IsNullOrEmpty(v))
{
return DateTime.MinValue;
}
// Try to parse with all known formats first
// Standard format is first for performance (most common case)
string[] formats = new[]
{
"yyyy-MM-dd HH:mm:ss.fff", // Standard format with milliseconds (23 chars)
"yyyy-MM-dd HH:mm:ss", // Standard format without milliseconds (19 chars)
"yyyy-MM-dd'T'HH:mm:ss.fff'Z'", // ISO 8601 with milliseconds and Zulu
"yyyy-MM-dd'T'HH:mm:ss'Z'", // ISO 8601 with Zulu
"yyyy-MM-dd'T'HH:mm:ss.fff", // ISO 8601 with milliseconds
"yyyy-MM-dd'T'HH:mm:ss", // ISO 8601 basic
"yyyy-MM-dd", // Date only
};
foreach (var format in formats)
{
if (DateTime.TryParseExact(v, format, CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out var dt))
{
return dt;
}
}
// Fallback: try to parse dynamically (handles most .NET and JS date strings)
if (DateTime.TryParse(v, CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal, out var dynamicDt))
{
return dynamicDt;
}
// If all parsing fails, return MinValue as a safe fallback
return DateTime.MinValue;
}
}