Merge pull request #5 from kmc7468/dev

v0.2.0

.dockerignore

@@ -1,6 +1,5 @@
 .git
 node_modules
-/Makefile
 
 # Output
 .output
@@ -11,15 +10,13 @@ node_modules
 /build
 /data
 /library
-/thumbnails
 
 # OS
 .DS_Store
 Thumbs.db
 
-# Editors
+# VSCode
 /.vscode
-/.idea
 
 # Env
 .env
@@ -30,3 +27,6 @@ Thumbs.db
 # Vite
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
+
+# SQLite
+*.db

.env.example

@@ -1,14 +1,9 @@
 # Required environment variables
-DATABASE_PASSWORD=
 SESSION_SECRET=
 
 # Optional environment variables
-DATABASE_HOST=
-DATABASE_PORT=
-DATABASE_USER=
-DATABASE_NAME=
+DATABASE_URL=
 SESSION_EXPIRES=
 USER_CLIENT_CHALLENGE_EXPIRES=
 SESSION_UPGRADE_CHALLENGE_EXPIRES=
 LIBRARY_PATH=
-THUMBNAILS_PATH=

.gitignore

@@ -9,15 +9,13 @@ node_modules
 /build
 /data
 /library
-/thumbnails
 
 # OS
 .DS_Store
 Thumbs.db
 
-# Editors
+# VSCode
 /.vscode
-/.idea
 
 # Env
 .env
@@ -28,3 +26,6 @@ Thumbs.db
 # Vite
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
+
+# SQLite
+*.db

.prettierignore

@@ -3,5 +3,8 @@ package-lock.json
 pnpm-lock.yaml
 yarn.lock
 
+# Output
+/drizzle
+
 # Documents
 *.md

Dockerfile

@@ -2,7 +2,7 @@
 FROM node:22-alpine AS base
 WORKDIR /app
 
-RUN npm install -g pnpm@10
+RUN npm install -g pnpm@9
 COPY pnpm-lock.yaml .
 
 # Build Stage
@@ -10,9 +10,8 @@ FROM base AS build
 RUN pnpm fetch
 
 COPY . .
-RUN pnpm install --offline && \
-    pnpm build && \
-    sed -i "s/http\.createServer()/http.createServer({ requestTimeout: 0 })/g" ./build/index.js
+RUN pnpm install --offline
+RUN pnpm build
 
 # Deploy Stage
 FROM base
@@ -22,7 +21,9 @@ COPY package.json .
 RUN pnpm install --offline --prod
 
 COPY --from=build /app/build ./build
+COPY drizzle ./drizzle
 
 EXPOSE 3000
 ENV BODY_SIZE_LIMIT=Infinity
+
 CMD ["node", "./build/index.js"]

README.md

@@ -23,7 +23,7 @@ vim .env # 아래를 참고하여 환경 변수를 설정해 주세요.
 docker compose up --build -d
 ```
 
-모든 데이터는 `./data` 디렉터리에 아래에 저장될 거예요.
+모든 데이터는 `./data` 디렉터리에 저장될 거예요.
 
 ### Environment Variables
 
@@ -31,8 +31,7 @@ docker compose up --build -d
 
 |이름|필수|기본값|설명|
 |:-|:-:|:-:|:-|
-|`DATABASE_PASSWORD`|Y||데이터베이스에 접근하기 위해 필요한 비밀번호예요. 안전한 값으로 설정해 주세요.|
-|`SESSION_SECRET`|Y||Session ID의 서명에 사용되는 비밀번호예요. 안전한 값으로 설정해 주세요.|
+|`SESSION_SECRET`|Y||Session ID의 서명을 위해 사용돼요. 안전한 값으로 설정해 주세요.|
 |`SESSION_EXPIRES`||`14d`|Session의 유효 시간이에요. Session은 마지막으로 사용된 후 설정된 유효 시간이 지나면 자동으로 삭제돼요.|
 |`USER_CLIENT_CHALLENGE_EXPIRES`||`5m`|암호 키를 서버에 처음 등록할 때 사용되는 챌린지의 유효 시간이에요.|
 |`SESSION_UPGRADE_CHALLENGE_EXPIRES`||`5m`|암호 키와 함께 로그인할 때 사용되는 챌린지의 유효 시간이에요.|

docker-compose.dev.yaml

@@ -1,15 +0,0 @@
-services:
-  database:
-    image: postgres:17
-    restart: always
-    volumes:
-      - database:/var/lib/postgresql/data
-    environment:
-      - POSTGRES_USER=${DATABASE_USER:-}
-      - POSTGRES_PASSWORD=${DATABASE_PASSWORD:?} # Required
-      - POSTGRES_DB=${DATABASE_NAME:-}
-    ports:
-      - ${DATABASE_PORT:-5432}:5432
-
-volumes:
-  database:

docker-compose.yaml

@@ -2,42 +2,20 @@ services:
   server:
     build: .
     restart: unless-stopped
-    depends_on:
-      database:
-        condition: service_healthy
     user: ${CONTAINER_UID:-0}:${CONTAINER_GID:-0}
     volumes:
-      - ./data/library:/app/data/library
-      - ./data/thumbnails:/app/data/thumbnails
+      - ./data:/app/data
     environment:
       # ArkVault
-      - DATABASE_HOST=database
-      - DATABASE_USER=arkvault
-      - DATABASE_PASSWORD=${DATABASE_PASSWORD:?} # Required
+      - DATABASE_URL=/app/data/database.sqlite
       - SESSION_SECRET=${SESSION_SECRET:?} # Required
       - SESSION_EXPIRES
       - USER_CLIENT_CHALLENGE_EXPIRES
       - SESSION_UPGRADE_CHALLENGE_EXPIRES
       - LIBRARY_PATH=/app/data/library
-      - THUMBNAILS_PATH=/app/data/thumbnails
       # SvelteKit
       - ADDRESS_HEADER=${TRUST_PROXY:+X-Forwarded-For}
       - XFF_DEPTH=${TRUST_PROXY:-}
       - NODE_ENV=${NODE_ENV:-production}
     ports:
       - ${PORT:-80}:3000
-
-  database:
-    image: postgres:17-alpine
-    restart: unless-stopped
-    user: ${CONTAINER_UID:-0}:${CONTAINER_GID:-0}
-    volumes:
-      - ./data/database:/var/lib/postgresql/data
-    environment:
-      - POSTGRES_USER=arkvault
-      - POSTGRES_PASSWORD=${DATABASE_PASSWORD:?}
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER}"]
-      interval: 5s
-      timeout: 5s
-      retries: 5

drizzle.config.ts

@@ -0,0 +1,13 @@
+import { defineConfig } from "drizzle-kit";
+
+export default defineConfig({
+  schema: "./src/lib/server/db/schema",
+
+  dbCredentials: {
+    url: process.env.DATABASE_URL || "local.db",
+  },
+
+  verbose: true,
+  strict: true,
+  dialect: "sqlite",
+});

drizzle/0000_unknown_stark_industries.sql

@@ -0,0 +1,175 @@
+CREATE TABLE `client` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`encryption_public_key` text NOT NULL,
+	`signature_public_key` text NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE `user_client` (
+	`user_id` integer NOT NULL,
+	`client_id` integer NOT NULL,
+	`state` text DEFAULT 'challenging' NOT NULL,
+	PRIMARY KEY(`client_id`, `user_id`),
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`client_id`) REFERENCES `client`(`id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `user_client_challenge` (
+	`id` integer PRIMARY KEY NOT NULL,
+	`user_id` integer NOT NULL,
+	`client_id` integer NOT NULL,
+	`answer` text NOT NULL,
+	`allowed_ip` text NOT NULL,
+	`expires_at` integer NOT NULL,
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`client_id`) REFERENCES `client`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`client_id`) REFERENCES `user_client`(`user_id`,`client_id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `directory` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`parent_id` integer,
+	`user_id` integer NOT NULL,
+	`master_encryption_key_version` integer NOT NULL,
+	`encrypted_data_encryption_key` text NOT NULL,
+	`data_encryption_key_version` integer NOT NULL,
+	`encrypted_name` text NOT NULL,
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`parent_id`) REFERENCES `directory`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`master_encryption_key_version`) REFERENCES `master_encryption_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `directory_log` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`directory_id` integer NOT NULL,
+	`timestamp` integer NOT NULL,
+	`action` text NOT NULL,
+	`new_name` text,
+	FOREIGN KEY (`directory_id`) REFERENCES `directory`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE TABLE `file` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`parent_id` integer,
+	`user_id` integer NOT NULL,
+	`path` text NOT NULL,
+	`master_encryption_key_version` integer NOT NULL,
+	`encrypted_data_encryption_key` text NOT NULL,
+	`data_encryption_key_version` integer NOT NULL,
+	`hmac_secret_key_version` integer,
+	`content_hmac` text,
+	`content_type` text NOT NULL,
+	`encrypted_content_iv` text NOT NULL,
+	`encrypted_name` text NOT NULL,
+	FOREIGN KEY (`parent_id`) REFERENCES `directory`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`master_encryption_key_version`) REFERENCES `master_encryption_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`hmac_secret_key_version`) REFERENCES `hmac_secret_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `file_log` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`file_id` integer NOT NULL,
+	`timestamp` integer NOT NULL,
+	`action` text NOT NULL,
+	`new_name` text,
+	FOREIGN KEY (`file_id`) REFERENCES `file`(`id`) ON UPDATE no action ON DELETE cascade
+);
+--> statement-breakpoint
+CREATE TABLE `hmac_secret_key` (
+	`user_id` integer NOT NULL,
+	`version` integer NOT NULL,
+	`state` text NOT NULL,
+	`master_encryption_key_version` integer NOT NULL,
+	`encrypted_key` text NOT NULL,
+	PRIMARY KEY(`user_id`, `version`),
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`master_encryption_key_version`) REFERENCES `master_encryption_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `hmac_secret_key_log` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`user_id` integer NOT NULL,
+	`hmac_secret_key_version` integer NOT NULL,
+	`timestamp` integer NOT NULL,
+	`action` text NOT NULL,
+	`action_by` integer,
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`action_by`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`hmac_secret_key_version`) REFERENCES `hmac_secret_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `client_master_encryption_key` (
+	`user_id` integer NOT NULL,
+	`client_id` integer NOT NULL,
+	`version` integer NOT NULL,
+	`encrypted_key` text NOT NULL,
+	`encrypted_key_signature` text NOT NULL,
+	PRIMARY KEY(`client_id`, `user_id`, `version`),
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`client_id`) REFERENCES `client`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`version`) REFERENCES `master_encryption_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `master_encryption_key` (
+	`user_id` integer NOT NULL,
+	`version` integer NOT NULL,
+	`state` text NOT NULL,
+	`retired_at` integer,
+	PRIMARY KEY(`user_id`, `version`),
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `master_encryption_key_log` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`user_id` integer NOT NULL,
+	`master_encryption_key_version` integer NOT NULL,
+	`timestamp` integer NOT NULL,
+	`action` text NOT NULL,
+	`action_by` integer,
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`action_by`) REFERENCES `client`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`user_id`,`master_encryption_key_version`) REFERENCES `master_encryption_key`(`user_id`,`version`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `session` (
+	`id` text PRIMARY KEY NOT NULL,
+	`user_id` integer NOT NULL,
+	`client_id` integer,
+	`created_at` integer NOT NULL,
+	`last_used_at` integer NOT NULL,
+	`last_used_by_ip` text,
+	`last_used_by_user_agent` text,
+	FOREIGN KEY (`user_id`) REFERENCES `user`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`client_id`) REFERENCES `client`(`id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `session_upgrade_challenge` (
+	`id` integer PRIMARY KEY NOT NULL,
+	`session_id` text NOT NULL,
+	`client_id` integer NOT NULL,
+	`answer` text NOT NULL,
+	`allowed_ip` text NOT NULL,
+	`expires_at` integer NOT NULL,
+	FOREIGN KEY (`session_id`) REFERENCES `session`(`id`) ON UPDATE no action ON DELETE no action,
+	FOREIGN KEY (`client_id`) REFERENCES `client`(`id`) ON UPDATE no action ON DELETE no action
+);
+--> statement-breakpoint
+CREATE TABLE `user` (
+	`id` integer PRIMARY KEY AUTOINCREMENT NOT NULL,
+	`email` text NOT NULL,
+	`password` text NOT NULL,
+	`nickname` text NOT NULL
+);
+--> statement-breakpoint
+CREATE UNIQUE INDEX `client_encryption_public_key_unique` ON `client` (`encryption_public_key`);--> statement-breakpoint
+CREATE UNIQUE INDEX `client_signature_public_key_unique` ON `client` (`signature_public_key`);--> statement-breakpoint
+CREATE UNIQUE INDEX `client_encryption_public_key_signature_public_key_unique` ON `client` (`encryption_public_key`,`signature_public_key`);--> statement-breakpoint
+CREATE UNIQUE INDEX `user_client_challenge_answer_unique` ON `user_client_challenge` (`answer`);--> statement-breakpoint
+CREATE UNIQUE INDEX `directory_encrypted_data_encryption_key_unique` ON `directory` (`encrypted_data_encryption_key`);--> statement-breakpoint
+CREATE UNIQUE INDEX `file_path_unique` ON `file` (`path`);--> statement-breakpoint
+CREATE UNIQUE INDEX `file_encrypted_data_encryption_key_unique` ON `file` (`encrypted_data_encryption_key`);--> statement-breakpoint
+CREATE UNIQUE INDEX `hmac_secret_key_encrypted_key_unique` ON `hmac_secret_key` (`encrypted_key`);--> statement-breakpoint
+CREATE UNIQUE INDEX `session_user_id_client_id_unique` ON `session` (`user_id`,`client_id`);--> statement-breakpoint
+CREATE UNIQUE INDEX `session_upgrade_challenge_session_id_unique` ON `session_upgrade_challenge` (`session_id`);--> statement-breakpoint
+CREATE UNIQUE INDEX `session_upgrade_challenge_answer_unique` ON `session_upgrade_challenge` (`answer`);--> statement-breakpoint
+CREATE UNIQUE INDEX `user_email_unique` ON `user` (`email`);

drizzle/meta/_journal.json

@@ -0,0 +1,13 @@
+{
+  "version": "7",
+  "dialect": "sqlite",
+  "entries": [
+    {
+      "idx": 0,
+      "version": "6",
+      "when": 1736704436996,
+      "tag": "0000_unknown_stark_industries",
+      "breakpoints": true
+    }
+  ]
+}

eslint.config.js

@@ -1,24 +1,21 @@
-import { includeIgnoreFile } from "@eslint/compat";
-import js from "@eslint/js";
-import { defineConfig } from "eslint/config";
 import prettier from "eslint-config-prettier";
+import js from "@eslint/js";
+import { includeIgnoreFile } from "@eslint/compat";
 import svelte from "eslint-plugin-svelte";
 import tailwind from "eslint-plugin-tailwindcss";
 import globals from "globals";
+import { fileURLToPath } from "node:url";
 import ts from "typescript-eslint";
-import { fileURLToPath } from "url";
-import svelteConfig from "./svelte.config.js";
-
 const gitignorePath = fileURLToPath(new URL("./.gitignore", import.meta.url));
 
-export default defineConfig(
+export default ts.config(
   includeIgnoreFile(gitignorePath),
   js.configs.recommended,
   ...ts.configs.recommended,
-  ...svelte.configs.recommended,
+  ...svelte.configs["flat/recommended"],
   ...tailwind.configs["flat/recommended"],
   prettier,
-  ...svelte.configs.prettier,
+  ...svelte.configs["flat/prettier"],
   {
     languageOptions: {
       globals: {
@@ -26,18 +23,13 @@ export default defineConfig(
         ...globals.node,
       },
     },
-    rules: {
-      "no-undef": "off",
-    },
   },
   {
-    files: ["**/*.svelte", "**/*.svelte.ts", "**/*.svelte.js"],
+    files: ["**/*.svelte"],
+
     languageOptions: {
       parserOptions: {
-        projectService: true,
-        extraFileExtensions: [".svelte"],
         parser: ts.parser,
-        svelteConfig,
       },
     },
   },

kysely.config.ts

@@ -1,18 +0,0 @@
-import { defineConfig } from "kysely-ctl";
-import { Pool } from "pg";
-
-export default defineConfig({
-  dialect: "pg",
-  dialectConfig: {
-    pool: new Pool({
-      host: process.env.DATABASE_HOST,
-      port: process.env.DATABASE_PORT ? parseInt(process.env.DATABASE_PORT) : undefined,
-      user: process.env.DATABASE_USER,
-      password: process.env.DATABASE_PASSWORD,
-      database: process.env.DATABASE_NAME,
-    }),
-  },
-  migrations: {
-    migrationFolder: "./src/lib/server/db/migrations",
-  },
-});

package.json

@@ -1,7 +1,7 @@
 {
   "name": "arkvault",
   "private": true,
-  "version": "0.6.0",
+  "version": "0.2.0",
   "type": "module",
   "scripts": {
     "dev": "vite dev",
@@ -11,62 +11,54 @@
     "check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
     "format": "prettier --write .",
     "lint": "prettier --check . && eslint .",
-    "db:up": "docker compose -f docker-compose.dev.yaml -p arkvault-dev up -d",
-    "db:down": "docker compose -f docker-compose.dev.yaml -p arkvault-dev down",
-    "db:migrate": "kysely migrate"
+    "db:push": "drizzle-kit push",
+    "db:generate": "drizzle-kit generate",
+    "db:migrate": "drizzle-kit migrate",
+    "db:studio": "drizzle-kit studio"
   },
   "devDependencies": {
-    "@eslint/compat": "^2.0.0",
-    "@iconify-json/material-symbols": "^1.2.50",
-    "@sveltejs/adapter-node": "^5.4.0",
-    "@sveltejs/kit": "^2.49.2",
-    "@sveltejs/vite-plugin-svelte": "^6.2.1",
-    "@tanstack/svelte-virtual": "^3.13.13",
-    "@trpc/client": "^11.8.1",
+    "@eslint/compat": "^1.2.4",
+    "@iconify-json/material-symbols": "^1.2.12",
+    "@sveltejs/adapter-node": "^5.2.11",
+    "@sveltejs/kit": "^2.15.2",
+    "@sveltejs/vite-plugin-svelte": "^4.0.4",
+    "@types/better-sqlite3": "^7.6.12",
     "@types/file-saver": "^2.0.7",
     "@types/ms": "^0.7.34",
-    "@types/node-schedule": "^2.1.8",
-    "@types/pg": "^8.16.0",
-    "autoprefixer": "^10.4.23",
-    "axios": "^1.13.2",
-    "dexie": "^4.2.1",
-    "eslint": "^9.39.2",
-    "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-svelte": "^3.13.1",
-    "eslint-plugin-tailwindcss": "^3.18.2",
-    "exifreader": "^4.33.1",
+    "@types/node-schedule": "^2.1.7",
+    "autoprefixer": "^10.4.20",
+    "dexie": "^4.0.10",
+    "drizzle-kit": "^0.22.8",
+    "eslint": "^9.17.0",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-svelte": "^2.46.1",
+    "eslint-plugin-tailwindcss": "^3.17.5",
     "file-saver": "^2.0.5",
-    "globals": "^16.5.0",
+    "globals": "^15.14.0",
     "heic2any": "^0.0.4",
-    "kysely-ctl": "^0.19.0",
-    "lru-cache": "^11.2.4",
-    "mime": "^4.1.0",
-    "p-limit": "^7.2.0",
-    "prettier": "^3.7.4",
-    "prettier-plugin-svelte": "^3.4.1",
-    "prettier-plugin-tailwindcss": "^0.7.2",
-    "svelte": "^5.46.1",
-    "svelte-check": "^4.3.5",
-    "tailwindcss": "^3.4.19",
-    "typescript": "^5.9.3",
-    "typescript-eslint": "^8.50.1",
-    "unplugin-icons": "^22.5.0",
-    "vite": "^7.3.0"
+    "mime": "^4.0.6",
+    "prettier": "^3.4.2",
+    "prettier-plugin-svelte": "^3.3.2",
+    "prettier-plugin-tailwindcss": "^0.6.9",
+    "svelte": "^5.17.1",
+    "svelte-check": "^4.1.3",
+    "tailwindcss": "^3.4.17",
+    "typescript": "^5.7.3",
+    "typescript-eslint": "^8.19.1",
+    "unplugin-icons": "^0.22.0",
+    "vite": "^5.4.11"
   },
   "dependencies": {
-    "@fastify/busboy": "^3.2.0",
-    "@trpc/server": "^11.8.1",
-    "argon2": "^0.44.0",
-    "kysely": "^0.28.9",
+    "argon2": "^0.41.1",
+    "better-sqlite3": "^11.7.2",
+    "drizzle-orm": "^0.33.0",
     "ms": "^2.1.3",
     "node-schedule": "^2.1.1",
-    "pg": "^8.16.3",
-    "superjson": "^2.2.6",
-    "uuid": "^13.0.0",
-    "zod": "^4.2.1"
+    "uuid": "^11.0.4",
+    "zod": "^3.24.1"
   },
   "engines": {
     "node": "^22.0.0",
-    "pnpm": "^10.0.0"
+    "pnpm": "^9.0.0"
   }
 }

src/app.html

@@ -1,5 +1,5 @@
 <!doctype html>
-<html lang="ko">
+<html lang="en">
   <head>
     <meta charset="utf-8" />
     <link rel="icon" href="%sveltekit.assets%/favicon.png" />

src/hooks.client.ts

@@ -1,18 +1,7 @@
 import type { ClientInit } from "@sveltejs/kit";
-import { cleanupDanglingInfos, getClientKey, getMasterKeys, getHmacSecrets } from "$lib/indexedDB";
-import { prepareFileCache } from "$lib/modules/file";
-import { prepareOpfs } from "$lib/modules/opfs";
+import { getClientKey, getMasterKeys, getHmacSecrets } from "$lib/indexedDB";
 import { clientKeyStore, masterKeyStore, hmacSecretStore } from "$lib/stores";
 
-const requestPersistentStorage = async () => {
-  const isPersistent = await navigator.storage.persist();
-  if (isPersistent) {
-    console.log("[ArkVault] Persistent storage granted.");
-  } else {
-    console.warn("[ArkVault] Persistent storage not granted.");
-  }
-};
-
 const prepareClientKeyStore = async () => {
   const [encryptKey, decryptKey, signKey, verifyKey] = await Promise.all([
     getClientKey("encrypt"),
@@ -40,14 +29,5 @@ const prepareHmacSecretStore = async () => {
 };
 
 export const init: ClientInit = async () => {
-  await Promise.all([
-    requestPersistentStorage(),
-    prepareFileCache(),
-    prepareClientKeyStore(),
-    prepareMasterKeyStore(),
-    prepareHmacSecretStore(),
-    prepareOpfs(),
-  ]);
-
-  cleanupDanglingInfos(); // Intended
+  await Promise.all([prepareClientKeyStore(), prepareMasterKeyStore(), prepareHmacSecretStore()]);
 };

src/hooks.server.ts

@@ -2,15 +2,15 @@ import type { ServerInit } from "@sveltejs/kit";
 import { sequence } from "@sveltejs/kit/hooks";
 import schedule from "node-schedule";
 import { cleanupExpiredUserClientChallenges } from "$lib/server/db/client";
-import { migrateDB } from "$lib/server/db/kysely";
+import { migrateDB } from "$lib/server/db/drizzle";
 import {
   cleanupExpiredSessions,
   cleanupExpiredSessionUpgradeChallenges,
 } from "$lib/server/db/session";
 import { authenticate, setAgentInfo } from "$lib/server/middlewares";
 
-export const init: ServerInit = async () => {
-  await migrateDB();
+export const init: ServerInit = () => {
+  migrateDB();
 
   schedule.scheduleJob("0 * * * *", () => {
     cleanupExpiredUserClientChallenges();

src/lib/components/BottomSheet.svelte

@@ -0,0 +1,39 @@
+<script lang="ts">
+  import type { Snippet } from "svelte";
+  import { fade, fly } from "svelte/transition";
+  import { AdaptiveDiv } from "$lib/components/divs";
+
+  interface Props {
+    children: Snippet;
+    onclose?: () => void;
+    isOpen: boolean;
+  }
+
+  let { children, onclose, isOpen = $bindable() }: Props = $props();
+
+  const closeBottomSheet = $derived(
+    onclose ||
+      (() => {
+        isOpen = false;
+      }),
+  );
+</script>
+
+{#if isOpen}
+  <!-- svelte-ignore a11y_click_events_have_key_events -->
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <div onclick={closeBottomSheet} class="fixed inset-0 z-10 flex items-end justify-center">
+    <div class="absolute inset-0 bg-black bg-opacity-50" transition:fade={{ duration: 100 }}></div>
+    <div class="z-20 w-full">
+      <AdaptiveDiv>
+        <div
+          onclick={(e) => e.stopPropagation()}
+          class="flex max-h-[70vh] min-h-[30vh] rounded-t-2xl bg-white px-4"
+          transition:fly={{ y: 100, duration: 200 }}
+        >
+          {@render children?.()}
+        </div>
+      </AdaptiveDiv>
+    </div>
+  </div>
+{/if}

src/lib/components/Modal.svelte

@@ -0,0 +1,38 @@
+<script lang="ts">
+  import type { Snippet } from "svelte";
+  import { fade } from "svelte/transition";
+  import { AdaptiveDiv } from "$lib/components/divs";
+
+  interface Props {
+    children: Snippet;
+    onclose?: () => void;
+    isOpen: boolean;
+  }
+
+  let { children, onclose, isOpen = $bindable() }: Props = $props();
+
+  const closeModal = $derived(
+    onclose ||
+      (() => {
+        isOpen = false;
+      }),
+  );
+</script>
+
+{#if isOpen}
+  <!-- svelte-ignore a11y_click_events_have_key_events -->
+  <!-- svelte-ignore a11y_no_static_element_interactions -->
+  <div
+    onclick={closeModal}
+    class="fixed inset-0 z-10 bg-black bg-opacity-50"
+    transition:fade={{ duration: 100 }}
+  >
+    <AdaptiveDiv>
+      <div class="flex h-full items-center justify-center px-4">
+        <div onclick={(e) => e.stopPropagation()} class="rounded-2xl bg-white p-4">
+          {@render children?.()}
+        </div>
+      </div>
+    </AdaptiveDiv>
+  </div>
+{/if}

src/lib/components/TopBar.svelte

@@ -0,0 +1,31 @@
+<script lang="ts">
+  import type { Snippet } from "svelte";
+
+  import IconArrowBack from "~icons/material-symbols/arrow-back";
+
+  interface Props {
+    children?: Snippet;
+    onback?: () => void;
+    title?: string;
+  }
+
+  let { children, onback, title }: Props = $props();
+
+  const back = $derived(() => {
+    setTimeout(onback || (() => history.back()), 100);
+  });
+</script>
+
+<div class="sticky top-0 z-10 flex flex-shrink-0 items-center justify-between bg-white py-4">
+  <button onclick={back} class="w-[2.3rem] flex-shrink-0 rounded-full p-1 active:bg-gray-100">
+    <IconArrowBack class="text-2xl" />
+  </button>
+  {#if title}
+    <p class="flex-grow truncate px-2 text-center text-lg font-semibold">{title}</p>
+  {/if}
+  <div class="w-[2.3rem] flex-shrink-0">
+    {#if children}
+      {@render children?.()}
+    {/if}
+  </div>
+</div>

src/lib/components/atoms/BottomSheet.svelte

@@ -1,40 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-  import { fade, fly } from "svelte/transition";
-  import { AdaptiveDiv } from "$lib/components/atoms";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    isOpen: boolean;
-    onclose?: () => void;
-  }
-
-  let { children, class: className, isOpen = $bindable(), onclose }: Props = $props();
-</script>
-
-{#if isOpen}
-  <!-- svelte-ignore a11y_click_events_have_key_events -->
-  <!-- svelte-ignore a11y_no_static_element_interactions -->
-  <div
-    onclick={onclose || (() => (isOpen = false))}
-    class="fixed inset-0 z-10 flex items-end justify-center"
-  >
-    <div
-      class="absolute inset-0 bg-black bg-opacity-50"
-      transition:fade|global={{ duration: 100 }}
-    ></div>
-    <AdaptiveDiv class="z-10 w-full">
-      <div
-        onclick={(e) => e.stopPropagation()}
-        class="flex max-h-[70vh] min-h-[30vh] flex-col rounded-t-2xl bg-white"
-        transition:fly|global={{ y: 100, duration: 200 }}
-      >
-        <div class={["flex-grow overflow-y-auto", className]}>
-          {@render children()}
-        </div>
-      </div>
-    </AdaptiveDiv>
-  </div>
-{/if}

src/lib/components/atoms/Modal.svelte

@@ -1,31 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-  import { fade } from "svelte/transition";
-  import { AdaptiveDiv } from "$lib/components/atoms";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    isOpen: boolean;
-    onclose?: () => void;
-  }
-
-  let { children, class: className, isOpen = $bindable(), onclose }: Props = $props();
-</script>
-
-{#if isOpen}
-  <!-- svelte-ignore a11y_click_events_have_key_events -->
-  <!-- svelte-ignore a11y_no_static_element_interactions -->
-  <div
-    onclick={onclose || (() => (isOpen = false))}
-    class="fixed inset-0 z-10 bg-black bg-opacity-50"
-    transition:fade|global={{ duration: 100 }}
-  >
-    <AdaptiveDiv class="flex h-full items-center justify-center px-4">
-      <div onclick={(e) => e.stopPropagation()} class={["rounded-2xl bg-white p-4", className]}>
-        {@render children()}
-      </div>
-    </AdaptiveDiv>
-  </div>
-{/if}

src/lib/components/atoms/buttons/ActionEntryButton.svelte

@@ -1,59 +0,0 @@
-<script lang="ts">
-  import type { Component, Snippet } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-
-  interface Props {
-    actionButtonClass?: ClassValue;
-    actionButtonIcon?: Component<SvelteHTMLElements["svg"]>;
-    children: Snippet;
-    class?: ClassValue;
-    onActionButtonClick?: () => void;
-    onclick?: () => void;
-  }
-
-  let {
-    actionButtonIcon: ActionButtonIcon,
-    actionButtonClass: actionButtonClassName,
-    children,
-    class: className,
-    onActionButtonClick,
-    onclick,
-  }: Props = $props();
-</script>
-
-<!-- svelte-ignore a11y_no_static_element_interactions -->
-<!-- svelte-ignore a11y_click_events_have_key_events -->
-<div
-  id="container"
-  onclick={onclick && (() => setTimeout(onclick, 100))}
-  class={["rounded-xl", className]}
->
-  <div id="children" class="flex h-full items-center gap-x-4 p-2 transition">
-    <div class="flex-grow overflow-x-hidden">
-      {@render children()}
-    </div>
-    {#if ActionButtonIcon}
-      <button
-        id="action-button"
-        onclick={(e) => {
-          e.stopPropagation();
-          if (onActionButtonClick) {
-            setTimeout(onActionButtonClick, 100);
-          }
-        }}
-        class={["flex-shrink-0 rounded-full p-1 text-lg active:bg-gray-100", actionButtonClassName]}
-      >
-        <ActionButtonIcon />
-      </button>
-    {/if}
-  </div>
-</div>
-
-<style>
-  #container:active:not(:has(#action-button:active)) {
-    @apply bg-gray-100;
-  }
-  #children:active:not(:has(#action-button:active)) {
-    @apply scale-95;
-  }
-</style>

src/lib/components/atoms/buttons/Button.svelte

@@ -1,38 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    color?: "primary" | "gray";
-    onclick?: () => void;
-  }
-
-  let { children, class: className, color = "primary", onclick }: Props = $props();
-
-  let bgColor = $derived(
-    {
-      primary: "bg-primary-600 active:bg-primary-500",
-      gray: "bg-gray-300 active:bg-gray-400",
-    }[color],
-  );
-  let textColor = $derived(
-    {
-      primary: "text-white",
-      gray: "text-gray-800",
-    }[color],
-  );
-</script>
-
-<button
-  onclick={onclick && (() => setTimeout(onclick, 100))}
-  class={[
-    "h-12 min-w-fit rounded-xl p-3 font-medium transition active:scale-95",
-    bgColor,
-    textColor,
-    className,
-  ]}
->
-  {@render children()}
-</button>

src/lib/components/atoms/buttons/EntryButton.svelte

@@ -1,26 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-
-  import IconChevronRight from "~icons/material-symbols/chevron-right";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    onclick?: () => void;
-  }
-
-  let { children, class: className, onclick }: Props = $props();
-</script>
-
-<button
-  onclick={onclick && (() => setTimeout(onclick, 100))}
-  class={["rounded-xl active:bg-gray-100", className]}
->
-  <div class="flex h-full items-center gap-x-4 p-2 transition active:scale-95">
-    <div class="flex-grow">
-      {@render children()}
-    </div>
-    <IconChevronRight class="flex-shrink-0 text-xl text-gray-800" />
-  </div>
-</button>

src/lib/components/atoms/buttons/FloatingButton.svelte

@@ -1,27 +0,0 @@
-<script lang="ts">
-  import type { Component } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-  import { AdaptiveDiv } from "$lib/components/atoms";
-
-  interface Props {
-    class: ClassValue;
-    icon: Component<SvelteHTMLElements["svg"]>;
-    onclick?: () => void;
-  }
-
-  let { class: className, icon: Icon, onclick }: Props = $props();
-</script>
-
-<div class="pointer-events-none fixed inset-0">
-  <AdaptiveDiv class="relative h-full">
-    <button
-      onclick={onclick && (() => setTimeout(onclick, 100))}
-      class={[
-        "pointer-events-auto absolute flex h-14 w-14 items-center justify-center rounded-full bg-gray-300 text-xl shadow-lg transition active:scale-95 active:bg-gray-400",
-        className,
-      ]}
-    >
-      <Icon />
-    </button>
-  </AdaptiveDiv>
-</div>

src/lib/components/atoms/divs/AdaptiveDiv.svelte

@@ -1,15 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-  }
-
-  let { children, class: className }: Props = $props();
-</script>
-
-<div class={["mx-auto max-w-screen-md", className]}>
-  {@render children()}
-</div>

src/lib/components/atoms/divs/BottomDiv.svelte

@@ -1,15 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-  }
-
-  let { children, class: className }: Props = $props();
-</script>
-
-<div class={["sticky bottom-0 bg-white pb-4", className]}>
-  {@render children()}
-</div>

src/lib/components/atoms/divs/FullscreenDiv.svelte

@@ -1,15 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-  }
-
-  let { children, class: className }: Props = $props();
-</script>
-
-<div class={["flex flex-grow flex-col justify-between px-4", className]}>
-  {@render children()}
-</div>

src/lib/components/atoms/inputs/CheckBox.svelte

@@ -1,23 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-
-  import IconCheckCircle from "~icons/material-symbols/check-circle";
-  import IconCheckCircleOutline from "~icons/material-symbols/check-circle-outline";
-
-  interface Props {
-    checked?: boolean;
-    children: Snippet;
-  }
-
-  let { checked = $bindable(false), children }: Props = $props();
-</script>
-
-<label class="flex items-center gap-x-1">
-  <input bind:checked type="checkbox" class="hidden" />
-  {@render children()}
-  {#if checked}
-    <IconCheckCircle class="text-primary-600" />
-  {:else}
-    <IconCheckCircleOutline class="text-gray-300" />
-  {/if}
-</label>

src/lib/components/atoms/inputs/TextInput.svelte

@@ -1,40 +0,0 @@
-<script lang="ts">
-  import type { ClassValue } from "svelte/elements";
-
-  interface Props {
-    class?: ClassValue;
-    placeholder: string;
-    type?: "text" | "password";
-    value?: string;
-  }
-
-  let { class: className, placeholder, type = "text", value = $bindable("") }: Props = $props();
-</script>
-
-<div class={className}>
-  <div class="relative mt-5">
-    <input
-      bind:value
-      {type}
-      placeholder=""
-      class="w-full border-b-2 border-gray-300 py-1 text-xl outline-none transition duration-300 ease-in-out"
-    />
-    <!-- svelte-ignore a11y_label_has_associated_control -->
-    <label
-      class="pointer-events-none absolute left-0 top-1/2 -translate-y-1/2 transform text-xl text-gray-400 transition-all duration-300 ease-in-out"
-    >
-      {placeholder}
-    </label>
-  </div>
-</div>
-
-<style>
-  input:focus,
-  input:not(:placeholder-shown) {
-    @apply border-primary-300;
-  }
-  input:focus + label,
-  input:not(:placeholder-shown) + label {
-    @apply top-0 -translate-y-full text-sm text-primary-400;
-  }
-</style>

src/lib/components/buttons/Button.svelte

@@ -0,0 +1,37 @@
+<script lang="ts">
+  import type { Snippet } from "svelte";
+
+  interface Props {
+    children: Snippet;
+    color?: "primary" | "gray";
+    onclick?: () => void;
+  }
+
+  let { children, color = "primary", onclick }: Props = $props();
+
+  const bgColorStyle = $derived(
+    {
+      primary: "bg-primary-600 active:bg-primary-500",
+      gray: "bg-gray-300 active:bg-gray-400",
+    }[color],
+  );
+  const fontColorStyle = $derived(
+    {
+      primary: "text-white",
+      gray: "text-gray-800",
+    }[color],
+  );
+</script>
+
+<button
+  onclick={() => {
+    setTimeout(() => {
+      onclick?.();
+    }, 100);
+  }}
+  class="{bgColorStyle} {fontColorStyle} h-12 w-full min-w-fit rounded-xl font-medium"
+>
+  <div class="h-full w-full p-3 transition active:scale-95">
+    {@render children?.()}
+  </div>
+</button>

src/lib/components/buttons/EntryButton.svelte

@@ -0,0 +1,30 @@
+<script lang="ts">
+  import type { Snippet } from "svelte";
+
+  import IconChevronRight from "~icons/material-symbols/chevron-right";
+
+  interface Props {
+    children: Snippet;
+    onclick?: () => void;
+  }
+
+  let { children, onclick }: Props = $props();
+</script>
+
+<button
+  onclick={() => {
+    setTimeout(() => {
+      onclick?.();
+    }, 100);
+  }}
+  class="w-full rounded-xl active:bg-gray-100"
+>
+  <div class="flex w-full justify-between p-2 transition active:scale-95">
+    <div>
+      {@render children?.()}
+    </div>
+    <div class="flex items-center justify-center">
+      <IconChevronRight class="text-xl text-gray-800" />
+    </div>
+  </div>
+</button>

src/lib/components/buttons/FloatingButton.svelte

@@ -0,0 +1,36 @@
+<script lang="ts">
+  import type { Component } from "svelte";
+  import type { SvelteHTMLElements } from "svelte/elements";
+  import { AdaptiveDiv } from "$lib/components/divs";
+
+  interface Props {
+    icon: Component<SvelteHTMLElements["svg"]>;
+    offset?: string;
+    onclick?: () => void;
+  }
+
+  let { icon: Icon, offset = "bottom-20", onclick }: Props = $props();
+
+  const click = () => {
+    setTimeout(() => {
+      onclick?.();
+    }, 100);
+  };
+</script>
+
+<div class="pointer-events-none fixed inset-0">
+  <div class="absolute w-full {offset}">
+    <AdaptiveDiv>
+      <div class="relative">
+        <div class="absolute bottom-4 right-4">
+          <button
+            onclick={click}
+            class="pointer-events-auto flex h-14 w-14 items-center justify-center rounded-full bg-gray-300 shadow-lg transition active:scale-95 active:bg-gray-400"
+          >
+            <Icon class="text-xl" />
+          </button>
+        </div>
+      </div>
+    </AdaptiveDiv>
+  </div>
+</div>

src/lib/components/buttons/TextButton.svelte

@@ -10,10 +10,14 @@
 </script>
 
 <button
-  onclick={onclick && (() => setTimeout(onclick, 100))}
+  onclick={() => {
+    setTimeout(() => {
+      onclick?.();
+    }, 100);
+  }}
   class="text-sm font-medium text-gray-800 underline underline-offset-2 active:rounded-xl active:bg-gray-100"
 >
-  <div class="h-full p-1 transition active:scale-95">
-    {@render children()}
+  <div class="h-full w-full p-1 transition active:scale-95">
+    {@render children?.()}
   </div>
 </button>

src/lib/components/buttons/index.ts

@@ -1,4 +1,3 @@
-export { default as ActionEntryButton } from "./ActionEntryButton.svelte";
 export { default as Button } from "./Button.svelte";
 export { default as EntryButton } from "./EntryButton.svelte";
 export { default as FloatingButton } from "./FloatingButton.svelte";

src/lib/components/divs/AdaptiveDiv.svelte

@@ -0,0 +1,7 @@
+<script lang="ts">
+  let { children } = $props();
+</script>
+
+<div class="mx-auto h-full w-full max-w-screen-md">
+  {@render children?.()}
+</div>

src/lib/components/divs/BottomDiv.svelte

@@ -0,0 +1,7 @@
+<script lang="ts">
+  let { children } = $props();
+</script>
+
+<div class="sticky bottom-0 flex flex-col items-center gap-y-2 bg-white pb-4">
+  {@render children?.()}
+</div>

src/lib/components/divs/TitleDiv.svelte

@@ -0,0 +1,21 @@
+<script lang="ts">
+  import type { Component, Snippet } from "svelte";
+  import type { SvelteHTMLElements } from "svelte/elements";
+
+  interface Props {
+    children: Snippet;
+    icon?: Component<SvelteHTMLElements["svg"]>;
+    topPadding?: boolean;
+  }
+
+  let { topPadding = true, children, icon: Icon }: Props = $props();
+</script>
+
+<div>
+  <div class="box-content flex min-h-[10vh] items-center {topPadding ? 'pt-4' : ''}">
+    {#if Icon}
+      <Icon class="text-5xl text-gray-600" />
+    {/if}
+  </div>
+  {@render children?.()}
+</div>

src/lib/components/divs/index.ts

@@ -1,3 +1,3 @@
 export { default as AdaptiveDiv } from "./AdaptiveDiv.svelte";
 export { default as BottomDiv } from "./BottomDiv.svelte";
-export { default as FullscreenDiv } from "./FullscreenDiv.svelte";
+export { default as TitleDiv } from "./TitleDiv.svelte";

src/lib/components/index.ts

@@ -1,5 +1,3 @@
 export { default as BottomSheet } from "./BottomSheet.svelte";
-export * from "./buttons";
-export * from "./divs";
-export * from "./inputs";
 export { default as Modal } from "./Modal.svelte";
+export { default as TopBar } from "./TopBar.svelte";

src/lib/components/inputs/TextInput.svelte

@@ -0,0 +1,35 @@
+<script lang="ts">
+  interface Props {
+    placeholder: string;
+    type?: "text" | "password";
+    value?: string;
+  }
+
+  let { placeholder, type = "text", value = $bindable("") }: Props = $props();
+</script>
+
+<div class="relative mt-5">
+  <input
+    bind:value
+    {type}
+    placeholder=""
+    class="w-full border-b-2 border-gray-300 py-1 text-xl outline-none transition duration-300 ease-in-out"
+  />
+  <!-- svelte-ignore a11y_label_has_associated_control -->
+  <label
+    class="absolute left-0 top-1/2 -translate-y-1/2 transform text-xl text-gray-400 transition-all duration-300 ease-in-out"
+  >
+    {placeholder}
+  </label>
+</div>
+
+<style>
+  input:focus,
+  input:not(:placeholder-shown) {
+    @apply border-primary-300;
+  }
+  input:focus + label,
+  input:not(:placeholder-shown) + label {
+    @apply top-0 -translate-y-full text-sm text-primary-400;
+  }
+</style>

src/lib/components/inputs/index.ts

@@ -1,2 +1 @@
-export { default as CheckBox } from "./CheckBox.svelte";
 export { default as TextInput } from "./TextInput.svelte";

src/lib/components/molecules/ActionModal.svelte

@@ -1,57 +0,0 @@
-<script module lang="ts">
-  export type ConfirmHandler = () => void | Promise<void> | boolean | Promise<boolean>;
-</script>
-
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import { Button, Modal } from "$lib/components/atoms";
-
-  interface Props {
-    cancelText?: string;
-    children: Snippet;
-    confirmText: string;
-    isOpen: boolean;
-    onbeforeclose?: () => void;
-    oncancel?: () => void;
-    onConfirmClick: ConfirmHandler;
-    title: string;
-  }
-
-  let {
-    cancelText = "닫기",
-    children,
-    confirmText,
-    isOpen = $bindable(),
-    onbeforeclose,
-    oncancel,
-    onConfirmClick,
-    title,
-  }: Props = $props();
-
-  const closeModal = () => {
-    onbeforeclose?.();
-    isOpen = false;
-  };
-
-  const cancelAction = () => {
-    oncancel?.();
-    closeModal();
-  };
-
-  const confirmAction = async () => {
-    if ((await onConfirmClick()) !== false) {
-      closeModal();
-    }
-  };
-</script>
-
-<Modal bind:isOpen onclose={cancelAction} class="space-y-4">
-  <div class="flex flex-col gap-y-2 break-keep">
-    <p class="text-xl font-bold">{title}</p>
-    {@render children()}
-  </div>
-  <div class="flex gap-x-2">
-    <Button color="gray" onclick={cancelAction} class="flex-1">{cancelText}</Button>
-    <Button onclick={confirmAction} class="flex-1">{confirmText}</Button>
-  </div>
-</Modal>

src/lib/components/molecules/Categories/Categories.svelte

@@ -1,63 +0,0 @@
-<script lang="ts">
-  import { untrack, type Component } from "svelte";
-  import type { SvelteHTMLElements } from "svelte/elements";
-  import { get, type Writable } from "svelte/store";
-  import type { CategoryInfo } from "$lib/modules/filesystem";
-  import { SortBy, sortEntries } from "$lib/utils";
-  import Category from "./Category.svelte";
-  import type { SelectedCategory } from "./service";
-
-  interface Props {
-    categories: Writable<CategoryInfo | null>[];
-    categoryMenuIcon?: Component<SvelteHTMLElements["svg"]>;
-    onCategoryClick: (category: SelectedCategory) => void;
-    onCategoryMenuClick?: (category: SelectedCategory) => void;
-    sortBy?: SortBy;
-  }
-
-  let {
-    categories,
-    categoryMenuIcon,
-    onCategoryClick,
-    onCategoryMenuClick,
-    sortBy = SortBy.NAME_ASC,
-  }: Props = $props();
-
-  let categoriesWithName: { name?: string; info: Writable<CategoryInfo | null> }[] = $state([]);
-
-  $effect(() => {
-    categoriesWithName = categories.map((category) => ({
-      name: get(category)?.name,
-      info: category,
-    }));
-
-    const sort = () => {
-      sortEntries(categoriesWithName, sortBy);
-    };
-    return untrack(() => {
-      sort();
-
-      const unsubscribes = categoriesWithName.map((category) =>
-        category.info.subscribe((value) => {
-          if (category.name === value?.name) return;
-          category.name = value?.name;
-          sort();
-        }),
-      );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
-  });
-</script>
-
-{#if categoriesWithName.length > 0}
-  <div class="space-y-1">
-    {#each categoriesWithName as { info }}
-      <Category
-        {info}
-        menuIcon={categoryMenuIcon}
-        onclick={onCategoryClick}
-        onMenuClick={onCategoryMenuClick}
-      />
-    {/each}
-  </div>
-{/if}

src/lib/components/molecules/Categories/Category.svelte

@@ -1,43 +0,0 @@
-<script lang="ts">
-  import type { Component } from "svelte";
-  import type { SvelteHTMLElements } from "svelte/elements";
-  import type { Writable } from "svelte/store";
-  import { ActionEntryButton } from "$lib/components/atoms";
-  import { CategoryLabel } from "$lib/components/molecules";
-  import type { CategoryInfo } from "$lib/modules/filesystem";
-  import type { SelectedCategory } from "./service";
-
-  interface Props {
-    info: Writable<CategoryInfo | null>;
-    menuIcon?: Component<SvelteHTMLElements["svg"]>;
-    onclick: (category: SelectedCategory) => void;
-    onMenuClick?: (category: SelectedCategory) => void;
-  }
-
-  let { info, menuIcon, onclick, onMenuClick }: Props = $props();
-
-  const openCategory = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as CategoryInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onclick({ id, dataKey, dataKeyVersion, name });
-  };
-
-  const openMenu = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as CategoryInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onMenuClick!({ id, dataKey, dataKeyVersion, name });
-  };
-</script>
-
-{#if $info}
-  <ActionEntryButton
-    class="h-12"
-    onclick={openCategory}
-    actionButtonIcon={menuIcon}
-    onActionButtonClick={openMenu}
-  >
-    <CategoryLabel name={$info.name!} />
-  </ActionEntryButton>
-{/if}

src/lib/components/molecules/Categories/index.ts

@@ -1,2 +0,0 @@
-export { default } from "./Categories.svelte";
-export * from "./service";

src/lib/components/molecules/Categories/service.ts

@@ -1,6 +0,0 @@
-export interface SelectedCategory {
-  id: number;
-  dataKey: CryptoKey;
-  dataKeyVersion: Date;
-  name: string;
-}

src/lib/components/molecules/FileThumbnailButton.svelte

@@ -1,42 +0,0 @@
-<script lang="ts">
-  import type { Writable } from "svelte/store";
-  import type { FileInfo } from "$lib/modules/filesystem";
-  import { requestFileThumbnailDownload } from "$lib/services/file";
-
-  interface Props {
-    info: Writable<FileInfo | null>;
-    onclick?: (file: FileInfo) => void;
-  }
-
-  let { info, onclick }: Props = $props();
-
-  let thumbnail: string | undefined = $state();
-
-  $effect(() => {
-    if ($info) {
-      requestFileThumbnailDownload($info.id, $info.dataKey)
-        .then((thumbnailUrl) => {
-          thumbnail = thumbnailUrl ?? undefined;
-        })
-        .catch(() => {
-          // TODO: Error Handling
-          thumbnail = undefined;
-        });
-    } else {
-      thumbnail = undefined;
-    }
-  });
-</script>
-
-{#if $info}
-  <button
-    onclick={() => onclick?.($info)}
-    class="relative aspect-square w-full overflow-hidden rounded transition active:scale-95 active:brightness-90"
-  >
-    {#if thumbnail}
-      <img src={thumbnail} alt={$info.name} class="h-full w-full object-cover" />
-    {:else}
-      <div class="h-full w-full bg-gray-100"></div>
-    {/if}
-  </button>
-{/if}

src/lib/components/molecules/IconEntryButton.svelte

@@ -1,30 +0,0 @@
-<script lang="ts">
-  import type { Component, Snippet } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-  import { EntryButton } from "$lib/components/atoms";
-  import { IconLabel } from "$lib/components/molecules";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    icon: Component<SvelteHTMLElements["svg"]>;
-    iconClass?: ClassValue;
-    onclick?: () => void;
-    textClass?: ClassValue;
-  }
-
-  let {
-    children,
-    class: className,
-    icon,
-    iconClass: iconClassName,
-    onclick,
-    textClass: textClassName,
-  }: Props = $props();
-</script>
-
-<EntryButton {onclick} class={className}>
-  <IconLabel {icon} class="h-full" iconClass={iconClassName} textClass={textClassName}>
-    {@render children()}
-  </IconLabel>
-</EntryButton>

src/lib/components/molecules/SubCategories.svelte

@@ -1,67 +0,0 @@
-<script lang="ts">
-  import type { Component } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-  import type { Writable } from "svelte/store";
-  import { Categories, IconEntryButton, type SelectedCategory } from "$lib/components/molecules";
-  import { getCategoryInfo, type CategoryInfo } from "$lib/modules/filesystem";
-  import { masterKeyStore } from "$lib/stores";
-
-  import IconAddCircle from "~icons/material-symbols/add-circle";
-
-  interface Props {
-    class?: ClassValue;
-    info: CategoryInfo;
-    onSubCategoryClick: (subCategory: SelectedCategory) => void;
-    onSubCategoryCreateClick: () => void;
-    onSubCategoryMenuClick?: (category: SelectedCategory) => void;
-    subCategoryCreatePosition?: "top" | "bottom";
-    subCategoryMenuIcon?: Component<SvelteHTMLElements["svg"]>;
-  }
-
-  let {
-    class: className,
-    info,
-    onSubCategoryClick,
-    onSubCategoryCreateClick,
-    onSubCategoryMenuClick,
-    subCategoryCreatePosition = "bottom",
-    subCategoryMenuIcon,
-  }: Props = $props();
-
-  let subCategories: Writable<CategoryInfo | null>[] = $state([]);
-
-  $effect(() => {
-    subCategories = info.subCategoryIds.map((id) =>
-      getCategoryInfo(id, $masterKeyStore?.get(1)?.key!),
-    );
-  });
-</script>
-
-<div class={["space-y-1", className]}>
-  {#snippet subCategoryCreate()}
-    <IconEntryButton
-      icon={IconAddCircle}
-      onclick={onSubCategoryCreateClick}
-      class="h-12 w-full"
-      iconClass="text-gray-600"
-      textClass="text-gray-700"
-    >
-      카테고리 추가하기
-    </IconEntryButton>
-  {/snippet}
-
-  {#if subCategoryCreatePosition === "top"}
-    {@render subCategoryCreate()}
-  {/if}
-  {#key info}
-    <Categories
-      categories={subCategories}
-      categoryMenuIcon={subCategoryMenuIcon}
-      onCategoryClick={onSubCategoryClick}
-      onCategoryMenuClick={onSubCategoryMenuClick}
-    />
-  {/key}
-  {#if subCategoryCreatePosition === "bottom"}
-    {@render subCategoryCreate()}
-  {/if}
-</div>

src/lib/components/molecules/TitledDiv.svelte

@@ -1,43 +0,0 @@
-<script lang="ts">
-  import type { Component, Snippet } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-  import { TitleLabel } from "$lib/components/molecules";
-
-  interface Props {
-    children?: Snippet;
-    childrenClass?: ClassValue;
-    class?: ClassValue;
-    description?: Snippet;
-    icon?: Component<SvelteHTMLElements["svg"]>;
-    title: Snippet;
-    titleClass?: ClassValue;
-  }
-
-  let {
-    children,
-    childrenClass: childrenClassName,
-    class: className,
-    description,
-    icon,
-    title,
-    titleClass: titleClassName,
-  }: Props = $props();
-</script>
-
-<div class={["space-y-4 py-4", className]}>
-  <div class="space-y-2 break-keep">
-    <TitleLabel {icon} textClass={titleClassName}>
-      {@render title()}
-    </TitleLabel>
-    {#if description}
-      <p>
-        {@render description()}
-      </p>
-    {/if}
-  </div>
-  {#if children}
-    <div class={childrenClassName}>
-      {@render children()}
-    </div>
-  {/if}
-</div>

src/lib/components/molecules/TopBar.svelte

@@ -1,37 +0,0 @@
-<script lang="ts">
-  import type { Snippet } from "svelte";
-  import type { ClassValue } from "svelte/elements";
-
-  import IconArrowBack from "~icons/material-symbols/arrow-back";
-
-  interface Props {
-    children?: Snippet;
-    class?: ClassValue;
-    onBackClick?: () => void;
-    title?: string;
-  }
-
-  let { children, class: className, onBackClick, title }: Props = $props();
-</script>
-
-<div
-  class={[
-    "sticky top-0 z-10 flex items-center justify-between gap-x-2 px-2 py-3 backdrop-blur-2xl",
-    className,
-  ]}
->
-  <button
-    onclick={onBackClick || (() => history.back())}
-    class="w-[2.3rem] flex-shrink-0 rounded-full p-1 active:bg-black active:bg-opacity-[0.04]"
-  >
-    <IconArrowBack class="text-2xl" />
-  </button>
-  {#if title}
-    <p class="flex-grow truncate text-center text-lg font-semibold">{title}</p>
-  {/if}
-  <div class="w-[2.3rem] flex-shrink-0">
-    {#if children}
-      {@render children()}
-    {/if}
-  </div>
-</div>

src/lib/components/molecules/index.ts

@@ -1,10 +0,0 @@
-export * from "./ActionModal.svelte";
-export { default as ActionModal } from "./ActionModal.svelte";
-export * from "./Categories";
-export { default as Categories } from "./Categories";
-export { default as FileThumbnailButton } from "./FileThumbnailButton.svelte";
-export { default as IconEntryButton } from "./IconEntryButton.svelte";
-export * from "./labels";
-export { default as SubCategories } from "./SubCategories.svelte";
-export { default as TitledDiv } from "./TitledDiv.svelte";
-export { default as TopBar } from "./TopBar.svelte";

src/lib/components/molecules/labels/CategoryLabel.svelte

@@ -1,28 +0,0 @@
-<script lang="ts">
-  import type { ClassValue } from "svelte/elements";
-  import { IconLabel } from "$lib/components/molecules";
-
-  import IconCategory from "~icons/material-symbols/category";
-
-  interface Props {
-    class?: ClassValue;
-    name: string;
-    subtext?: string;
-    textClass?: ClassValue;
-  }
-
-  let { class: className, name, subtext, textClass: textClassName }: Props = $props();
-</script>
-
-{#snippet subtextSnippet()}
-  {subtext}
-{/snippet}
-
-<IconLabel
-  icon={IconCategory}
-  subtext={subtext ? subtextSnippet : undefined}
-  class={className}
-  textClass={textClassName}
->
-  {name}
-</IconLabel>

src/lib/components/molecules/labels/DirectoryEntryLabel.svelte

@@ -1,53 +0,0 @@
-<script lang="ts">
-  import type { ClassValue } from "svelte/elements";
-  import { IconLabel } from "$lib/components/molecules";
-
-  import IconFolder from "~icons/material-symbols/folder";
-  import IconDriveFolderUpload from "~icons/material-symbols/drive-folder-upload";
-  import IconDraft from "~icons/material-symbols/draft";
-
-  interface Props {
-    class?: ClassValue;
-    name: string;
-    subtext?: string;
-    textClass?: ClassValue;
-    thumbnail?: string;
-    type: "directory" | "parent-directory" | "file";
-  }
-
-  let {
-    class: className,
-    name,
-    subtext,
-    textClass: textClassName,
-    thumbnail,
-    type,
-  }: Props = $props();
-</script>
-
-{#snippet iconSnippet()}
-  <div class="flex h-10 w-10 items-center justify-center text-xl">
-    {#if thumbnail}
-      <img src={thumbnail} alt={name} loading="lazy" class="aspect-square rounded object-cover" />
-    {:else if type === "directory"}
-      <IconFolder />
-    {:else if type === "parent-directory"}
-      <IconDriveFolderUpload class="text-yellow-500" />
-    {:else}
-      <IconDraft class="text-blue-400" />
-    {/if}
-  </div>
-{/snippet}
-
-{#snippet subtextSnippet()}
-  {subtext}
-{/snippet}
-
-<IconLabel
-  {iconSnippet}
-  subtext={subtext ? subtextSnippet : undefined}
-  class={className}
-  textClass={textClassName}
->
-  {name}
-</IconLabel>

src/lib/components/molecules/labels/IconLabel.svelte

@@ -1,46 +0,0 @@
-<script lang="ts">
-  import type { Component, Snippet } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    icon?: Component<SvelteHTMLElements["svg"]>;
-    iconClass?: ClassValue;
-    iconSnippet?: Snippet;
-    subtext?: Snippet;
-    textClass?: ClassValue;
-  }
-
-  let {
-    children,
-    class: className,
-    icon: Icon,
-    iconClass: iconClassName,
-    iconSnippet,
-    subtext,
-    textClass: textClassName,
-  }: Props = $props();
-</script>
-
-<div class={["flex items-center gap-x-4", className]}>
-  {#if iconSnippet}
-    <div class={["flex-shrink-0", iconClassName]}>
-      {@render iconSnippet()}
-    </div>
-  {:else if Icon}
-    <div class={["flex-shrink-0 text-lg", iconClassName]}>
-      <Icon />
-    </div>
-  {/if}
-  <div class="flex flex-grow flex-col overflow-x-hidden text-left">
-    <p class={["truncate font-medium", textClassName]}>
-      {@render children()}
-    </p>
-    {#if subtext}
-      <p class="truncate text-xs text-gray-800">
-        {@render subtext()}
-      </p>
-    {/if}
-  </div>
-</div>

src/lib/components/molecules/labels/TitleLabel.svelte

@@ -1,24 +0,0 @@
-<script lang="ts">
-  import type { Component, Snippet } from "svelte";
-  import type { ClassValue, SvelteHTMLElements } from "svelte/elements";
-
-  interface Props {
-    children: Snippet;
-    class?: ClassValue;
-    icon?: Component<SvelteHTMLElements["svg"]>;
-    textClass?: ClassValue;
-  }
-
-  let { children, class: className, icon: Icon, textClass: textClassName }: Props = $props();
-</script>
-
-<div class={className}>
-  <div class="flex min-h-[10vh] items-center">
-    {#if Icon}
-      <Icon class="text-5xl text-gray-600" />
-    {/if}
-  </div>
-  <p class={["text-3xl font-bold", textClassName]}>
-    {@render children()}
-  </p>
-</div>

src/lib/components/molecules/labels/index.ts

@@ -1,4 +0,0 @@
-export { default as CategoryLabel } from "./CategoryLabel.svelte";
-export { default as DirectoryEntryLabel } from "./DirectoryEntryLabel.svelte";
-export { default as IconLabel } from "./IconLabel.svelte";
-export { default as TitleLabel } from "./TitleLabel.svelte";

src/lib/components/organisms/Category/Category.svelte

@@ -1,107 +0,0 @@
-<script lang="ts">
-  import { untrack } from "svelte";
-  import { get, type Writable } from "svelte/store";
-  import { CheckBox } from "$lib/components/atoms";
-  import { SubCategories, type SelectedCategory } from "$lib/components/molecules";
-  import { getFileInfo, type FileInfo, type CategoryInfo } from "$lib/modules/filesystem";
-  import { masterKeyStore } from "$lib/stores";
-  import { SortBy, sortEntries } from "$lib/utils";
-  import File from "./File.svelte";
-  import type { SelectedFile } from "./service";
-
-  import IconMoreVert from "~icons/material-symbols/more-vert";
-
-  interface Props {
-    info: CategoryInfo;
-    onFileClick: (file: SelectedFile) => void;
-    onFileRemoveClick: (file: SelectedFile) => void;
-    onSubCategoryClick: (subCategory: SelectedCategory) => void;
-    onSubCategoryCreateClick: () => void;
-    onSubCategoryMenuClick: (subCategory: SelectedCategory) => void;
-    sortBy?: SortBy;
-    isFileRecursive: boolean;
-  }
-
-  let {
-    info,
-    onFileClick,
-    onFileRemoveClick,
-    onSubCategoryClick,
-    onSubCategoryCreateClick,
-    onSubCategoryMenuClick,
-    sortBy = SortBy.NAME_ASC,
-    isFileRecursive = $bindable(),
-  }: Props = $props();
-
-  let files: { name?: string; info: Writable<FileInfo | null>; isRecursive: boolean }[] = $state(
-    [],
-  );
-
-  $effect(() => {
-    files =
-      info.files
-        ?.filter(({ isRecursive }) => isFileRecursive || !isRecursive)
-        .map(({ id, isRecursive }) => {
-          const info = getFileInfo(id, $masterKeyStore?.get(1)?.key!);
-          return {
-            name: get(info)?.name,
-            info,
-            isRecursive,
-          };
-        }) ?? [];
-
-    const sort = () => {
-      sortEntries(files, sortBy);
-    };
-    return untrack(() => {
-      sort();
-
-      const unsubscribes = files.map((file) =>
-        file.info.subscribe((value) => {
-          if (file.name === value?.name) return;
-          file.name = value?.name;
-          sort();
-        }),
-      );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
-  });
-</script>
-
-<div class="space-y-4">
-  <div class="space-y-4 bg-white p-4">
-    {#if info.id !== "root"}
-      <p class="text-lg font-bold text-gray-800">하위 카테고리</p>
-    {/if}
-    <SubCategories
-      {info}
-      {onSubCategoryClick}
-      {onSubCategoryCreateClick}
-      {onSubCategoryMenuClick}
-      subCategoryMenuIcon={IconMoreVert}
-    />
-  </div>
-  {#if info.id !== "root"}
-    <div class="space-y-4 bg-white p-4">
-      <div class="flex items-center justify-between">
-        <p class="text-lg font-bold text-gray-800">파일</p>
-        <CheckBox bind:checked={isFileRecursive}>
-          <p class="font-medium">하위 카테고리의 파일</p>
-        </CheckBox>
-      </div>
-      <div class="space-y-1">
-        {#key info}
-          {#each files as { info, isRecursive }}
-            <File
-              {info}
-              onclick={onFileClick}
-              onRemoveClick={!isRecursive ? onFileRemoveClick : undefined}
-            />
-          {:else}
-            <p class="text-gray-500 text-center">이 카테고리에 추가된 파일이 없어요.</p>
-          {/each}
-        {/key}
-      </div>
-    </div>
-  {/if}
-</div>

src/lib/components/organisms/Category/File.svelte

@@ -1,59 +0,0 @@
-<script lang="ts">
-  import type { Writable } from "svelte/store";
-  import { ActionEntryButton } from "$lib/components/atoms";
-  import { DirectoryEntryLabel } from "$lib/components/molecules";
-  import type { FileInfo } from "$lib/modules/filesystem";
-  import { requestFileThumbnailDownload, type SelectedFile } from "./service";
-
-  import IconClose from "~icons/material-symbols/close";
-
-  interface Props {
-    info: Writable<FileInfo | null>;
-    onclick: (selectedFile: SelectedFile) => void;
-    onRemoveClick?: (selectedFile: SelectedFile) => void;
-  }
-
-  let { info, onclick, onRemoveClick }: Props = $props();
-
-  let thumbnail: string | undefined = $state();
-
-  const openFile = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as FileInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onclick({ id, dataKey, dataKeyVersion, name });
-  };
-
-  const removeFile = () => {
-    const { id, dataKey, dataKeyVersion, name } = $info as FileInfo;
-    if (!dataKey || !dataKeyVersion) return; // TODO: Error handling
-
-    onRemoveClick!({ id, dataKey, dataKeyVersion, name });
-  };
-
-  $effect(() => {
-    if ($info) {
-      requestFileThumbnailDownload($info.id, $info.dataKey)
-        .then((thumbnailUrl) => {
-          thumbnail = thumbnailUrl ?? undefined;
-        })
-        .catch(() => {
-          // TODO: Error Handling
-          thumbnail = undefined;
-        });
-    } else {
-      thumbnail = undefined;
-    }
-  });
-</script>
-
-{#if $info}
-  <ActionEntryButton
-    class="h-12"
-    onclick={openFile}
-    actionButtonIcon={onRemoveClick && IconClose}
-    onActionButtonClick={removeFile}
-  >
-    <DirectoryEntryLabel type="file" {thumbnail} name={$info.name} />
-  </ActionEntryButton>
-{/if}

src/lib/components/organisms/Category/index.ts

@@ -1,2 +0,0 @@
-export { default } from "./Category.svelte";
-export * from "./service";

src/lib/components/organisms/Category/service.ts

@@ -1,8 +0,0 @@
-export { requestFileThumbnailDownload } from "$lib/services/file";
-
-export interface SelectedFile {
-  id: number;
-  dataKey: CryptoKey;
-  dataKeyVersion: Date;
-  name: string;
-}

src/lib/components/organisms/Gallery.svelte

@@ -1,148 +0,0 @@
-<script lang="ts">
-  import { createWindowVirtualizer } from "@tanstack/svelte-virtual";
-  import { untrack } from "svelte";
-  import { get, type Writable } from "svelte/store";
-  import { FileThumbnailButton } from "$lib/components/molecules";
-  import type { FileInfo } from "$lib/modules/filesystem";
-  import { formatDate, formatDateSortable, SortBy, sortEntries } from "$lib/utils";
-
-  interface Props {
-    files: Writable<FileInfo | null>[];
-    onFileClick?: (file: FileInfo) => void;
-  }
-
-  let { files, onFileClick }: Props = $props();
-
-  type FileEntry =
-    | { date?: undefined; contentType?: undefined; info: Writable<FileInfo | null> }
-    | { date: Date; contentType: string; info: Writable<FileInfo | null> };
-  type Row =
-    | { type: "header"; key: string; label: string }
-    | { type: "items"; key: string; items: FileEntry[] };
-
-  let filesWithDate: FileEntry[] = $state([]);
-  let rows: Row[] = $state([]);
-  let listElement: HTMLDivElement | undefined = $state();
-
-  const virtualizer = createWindowVirtualizer({
-    count: 0,
-    getItemKey: (index) => rows[index]!.key,
-    estimateSize: () => 1000, // TODO
-  });
-
-  const measureRow = (node: HTMLElement) => {
-    $virtualizer.measureElement(node);
-    return {
-      update: () => $virtualizer.measureElement(node),
-    };
-  };
-
-  $effect(() => {
-    filesWithDate = files.map((file) => {
-      const info = get(file);
-      if (info) {
-        return {
-          date: info.createdAt ?? info.lastModifiedAt,
-          contentType: info.contentType,
-          info: file,
-        };
-      } else {
-        return { info: file };
-      }
-    });
-
-    const buildRows = () => {
-      const map = new Map<string, FileEntry[]>();
-
-      for (const file of filesWithDate) {
-        if (
-          !file.date ||
-          !(file.contentType.startsWith("image/") || file.contentType.startsWith("video/"))
-        ) {
-          continue;
-        }
-
-        const date = formatDateSortable(file.date);
-        const entries = map.get(date) ?? [];
-        entries.push(file);
-        map.set(date, entries);
-      }
-
-      const newRows: Row[] = [];
-      const sortedDates = Array.from(map.keys()).sort((a, b) => b.localeCompare(a));
-      for (const date of sortedDates) {
-        const entries = map.get(date)!;
-        sortEntries(entries, SortBy.DATE_DESC);
-
-        newRows.push({
-          type: "header",
-          key: `header-${date}`,
-          label: formatDate(entries[0]!.date!),
-        });
-        newRows.push({
-          type: "items",
-          key: `items-${date}`,
-          items: entries,
-        });
-      }
-
-      rows = newRows;
-      $virtualizer.setOptions({ count: rows.length });
-    };
-    return untrack(() => {
-      buildRows();
-
-      const unsubscribes = filesWithDate.map((file) =>
-        file.info.subscribe((value) => {
-          const newDate = value?.createdAt ?? value?.lastModifiedAt;
-          const newContentType = value?.contentType;
-          if (file.date?.getTime() === newDate?.getTime() && file.contentType === newContentType) {
-            return;
-          }
-
-          file.date = newDate;
-          file.contentType = newContentType;
-          buildRows();
-        }),
-      );
-      return () => unsubscribes.forEach((unsubscribe) => unsubscribe());
-    });
-  });
-</script>
-
-<div bind:this={listElement} class="relative flex flex-grow flex-col">
-  <div style="height: {$virtualizer.getTotalSize()}px;">
-    {#each $virtualizer.getVirtualItems() as virtualRow (virtualRow.key)}
-      {@const row = rows[virtualRow.index]!}
-      <div
-        use:measureRow
-        data-index={virtualRow.index}
-        class="absolute left-0 top-0 w-full"
-        style="transform: translateY({virtualRow.start}px);"
-      >
-        {#if row.type === "header"}
-          <p class="pb-2 font-medium">{row.label}</p>
-        {:else}
-          <div class="grid grid-cols-4 gap-1 pb-4">
-            {#each row.items as { info }}
-              <FileThumbnailButton {info} onclick={onFileClick} />
-            {/each}
-          </div>
-        {/if}
-      </div>
-    {/each}
-  </div>
-  {#if $virtualizer.getVirtualItems().length === 0}
-    <div class="flex h-full flex-grow items-center justify-center">
-      <p class="text-gray-500">
-        {#if files.length === 0}
-          업로드된 파일이 없어요.
-        {:else if filesWithDate.length === 0}
-          파일 목록을 불러오고 있어요.
-        {:else}
-          사진 또는 동영상이 없어요.
-        {/if}
-      </p>
-    </div>
-  {/if}
-</div>

src/lib/components/organisms/index.ts

@@ -1,4 +0,0 @@
-export * from "./Category";
-export { default as Category } from "./Category";
-export { default as Gallery } from "./Gallery.svelte";
-export * from "./modals";

src/lib/components/organisms/modals/CategoryCreateModal.svelte

@@ -1,18 +0,0 @@
-<script lang="ts">
-  import { TextInputModal } from "$lib/components/organisms";
-
-  interface Props {
-    isOpen: boolean;
-    onCreateClick: (name: string) => Promise<boolean>;
-  }
-
-  let { isOpen = $bindable(), onCreateClick }: Props = $props();
-</script>
-
-<TextInputModal
-  bind:isOpen
-  title="새 카테고리"
-  placeholder="카테고리 이름"
-  submitText="만들기"
-  onSubmitClick={onCreateClick}
-/>

src/lib/components/organisms/modals/ForceLoginModal.svelte

@@ -1,22 +0,0 @@
-<script lang="ts">
-  import { ActionModal } from "$lib/components/molecules";
-
-  interface Props {
-    isOpen: boolean;
-    oncancel?: () => void;
-    onLoginClick: () => void;
-  }
-
-  let { isOpen = $bindable(), oncancel, onLoginClick }: Props = $props();
-</script>
-
-<ActionModal
-  bind:isOpen
-  title="다른 디바이스에 이미 로그인되어 있어요."
-  cancelText="아니요"
-  {oncancel}
-  confirmText="네"
-  onConfirmClick={onLoginClick}
->
-  <p>다른 디바이스에서는 로그아웃하고, 이 디바이스에서 로그인할까요?</p>
-</ActionModal>

src/lib/components/organisms/modals/RenameModal.svelte

@@ -1,22 +0,0 @@
-<script lang="ts">
-  import { TextInputModal } from "$lib/components/organisms";
-
-  interface Props {
-    isOpen: boolean;
-    onbeforeclose?: () => void;
-    onRenameClick: (newName: string) => Promise<boolean>;
-    originalName: string | undefined;
-  }
-
-  let { isOpen = $bindable(), onbeforeclose, onRenameClick, originalName }: Props = $props();
-</script>
-
-<TextInputModal
-  bind:isOpen
-  {onbeforeclose}
-  title="이름 바꾸기"
-  placeholder="이름"
-  defaultValue={originalName}
-  submitText="바꾸기"
-  onSubmitClick={onRenameClick}
-/>

src/lib/components/organisms/modals/TextInputModal.svelte

@@ -1,42 +0,0 @@
-<script lang="ts">
-  import { TextInput } from "$lib/components/atoms";
-  import { ActionModal, type ConfirmHandler } from "$lib/components/molecules";
-
-  interface Props {
-    defaultValue?: string;
-    isOpen: boolean;
-    onbeforeclose?: () => void;
-    onSubmitClick: (value: string) => ReturnType<ConfirmHandler>;
-    placeholder: string;
-    submitText: string;
-    title: string;
-  }
-
-  let {
-    defaultValue = "",
-    isOpen = $bindable(),
-    onbeforeclose,
-    onSubmitClick,
-    placeholder,
-    submitText,
-    title,
-  }: Props = $props();
-
-  let value = $state("");
-
-  $effect.pre(() => {
-    if (isOpen) {
-      value = defaultValue;
-    }
-  });
-</script>
-
-<ActionModal
-  bind:isOpen
-  {onbeforeclose}
-  {title}
-  confirmText={submitText}
-  onConfirmClick={() => onSubmitClick(value)}
->
-  <TextInput bind:value {placeholder} class="mb-3" />
-</ActionModal>

src/lib/components/organisms/modals/index.ts

@@ -1,4 +0,0 @@
-export { default as CategoryCreateModal } from "./CategoryCreateModal.svelte";
-export { default as ForceLoginModal } from "./ForceLoginModal.svelte";
-export { default as RenameModal } from "./RenameModal.svelte";
-export { default as TextInputModal } from "./TextInputModal.svelte";

src/lib/hooks/callApi.ts

@@ -0,0 +1,11 @@
+export const callGetApi = async (input: RequestInfo, fetchInternal = fetch) => {
+  return await fetchInternal(input);
+};
+
+export const callPostApi = async <T>(input: RequestInfo, payload?: T, fetchInternal = fetch) => {
+  return await fetchInternal(input, {
+    method: "POST",
+    headers: { "Content-Type": "application/json" },
+    body: payload ? JSON.stringify(payload) : undefined,
+  });
+};

src/lib/hooks/index.ts

@@ -0,0 +1,2 @@
+export * from "./callApi";
+export * from "./gotoStateful";

src/lib/indexedDB/cacheIndex.ts

@@ -1,28 +0,0 @@
-import { Dexie, type EntityTable } from "dexie";
-
-export interface FileCacheIndex {
-  fileId: number;
-  cachedAt: Date;
-  lastRetrievedAt: Date;
-  size: number;
-}
-
-const cacheIndex = new Dexie("cacheIndex") as Dexie & {
-  fileCache: EntityTable<FileCacheIndex, "fileId">;
-};
-
-cacheIndex.version(1).stores({
-  fileCache: "fileId",
-});
-
-export const getFileCacheIndex = async () => {
-  return await cacheIndex.fileCache.toArray();
-};
-
-export const storeFileCacheIndex = async (fileCacheIndex: FileCacheIndex) => {
-  await cacheIndex.fileCache.put(fileCacheIndex);
-};
-
-export const deleteFileCacheIndex = async (fileId: number) => {
-  await cacheIndex.fileCache.delete(fileId);
-};

src/lib/indexedDB/filesystem.ts

@@ -1,148 +0,0 @@
-import { Dexie, type EntityTable } from "dexie";
-
-export type DirectoryId = "root" | number;
-
-interface DirectoryInfo {
-  id: number;
-  parentId: DirectoryId;
-  name: string;
-}
-
-interface FileInfo {
-  id: number;
-  parentId: DirectoryId;
-  name: string;
-  contentType: string;
-  createdAt?: Date;
-  lastModifiedAt: Date;
-  categoryIds: number[];
-}
-
-export type CategoryId = "root" | number;
-
-interface CategoryInfo {
-  id: number;
-  parentId: CategoryId;
-  name: string;
-  files: { id: number; isRecursive: boolean }[];
-  isFileRecursive: boolean;
-}
-
-const filesystem = new Dexie("filesystem") as Dexie & {
-  directory: EntityTable<DirectoryInfo, "id">;
-  file: EntityTable<FileInfo, "id">;
-  category: EntityTable<CategoryInfo, "id">;
-};
-
-filesystem
-  .version(3)
-  .stores({
-    directory: "id, parentId",
-    file: "id, parentId",
-    category: "id, parentId",
-  })
-  .upgrade(async (trx) => {
-    await trx
-      .table("category")
-      .toCollection()
-      .modify((category) => {
-        category.isFileRecursive = false;
-      });
-  });
-
-export const getDirectoryInfos = async (parentId: DirectoryId) => {
-  return await filesystem.directory.where({ parentId }).toArray();
-};
-
-export const getDirectoryInfo = async (id: number) => {
-  return await filesystem.directory.get(id);
-};
-
-export const storeDirectoryInfo = async (directoryInfo: DirectoryInfo) => {
-  await filesystem.directory.put(directoryInfo);
-};
-
-export const deleteDirectoryInfo = async (id: number) => {
-  await filesystem.directory.delete(id);
-};
-
-export const getAllFileInfos = async () => {
-  return await filesystem.file.toArray();
-};
-
-export const getFileInfos = async (parentId: DirectoryId) => {
-  return await filesystem.file.where({ parentId }).toArray();
-};
-
-export const getFileInfo = async (id: number) => {
-  return await filesystem.file.get(id);
-};
-
-export const storeFileInfo = async (fileInfo: FileInfo) => {
-  await filesystem.file.put(fileInfo);
-};
-
-export const deleteFileInfo = async (id: number) => {
-  await filesystem.file.delete(id);
-};
-
-export const getCategoryInfos = async (parentId: CategoryId) => {
-  return await filesystem.category.where({ parentId }).toArray();
-};
-
-export const getCategoryInfo = async (id: number) => {
-  return await filesystem.category.get(id);
-};
-
-export const storeCategoryInfo = async (categoryInfo: CategoryInfo) => {
-  await filesystem.category.put(categoryInfo);
-};
-
-export const updateCategoryInfo = async (id: number, changes: { isFileRecursive?: boolean }) => {
-  await filesystem.category.update(id, changes);
-};
-
-export const deleteCategoryInfo = async (id: number) => {
-  await filesystem.category.delete(id);
-};
-
-export const cleanupDanglingInfos = async () => {
-  const validDirectoryIds: number[] = [];
-  const validFileIds: number[] = [];
-  const directoryQueue: DirectoryId[] = ["root"];
-
-  while (true) {
-    const directoryId = directoryQueue.shift();
-    if (!directoryId) break;
-
-    const [subDirectories, files] = await Promise.all([
-      filesystem.directory.where({ parentId: directoryId }).toArray(),
-      filesystem.file.where({ parentId: directoryId }).toArray(),
-    ]);
-    subDirectories.forEach(({ id }) => {
-      validDirectoryIds.push(id);
-      directoryQueue.push(id);
-    });
-    files.forEach(({ id }) => validFileIds.push(id));
-  }
-
-  const validCategoryIds: number[] = [];
-  const categoryQueue: CategoryId[] = ["root"];
-
-  while (true) {
-    const categoryId = categoryQueue.shift();
-    if (!categoryId) break;
-
-    const subCategories = await filesystem.category.where({ parentId: categoryId }).toArray();
-    subCategories.forEach(({ id }) => {
-      validCategoryIds.push(id);
-      categoryQueue.push(id);
-    });
-  }
-
-  await Promise.all([
-    filesystem.directory.where("id").noneOf(validDirectoryIds).delete(),
-    filesystem.file.where("id").noneOf(validFileIds).delete(),
-    filesystem.category.where("id").noneOf(validCategoryIds).delete(),
-  ]);
-};

src/lib/indexedDB/index.ts

@@ -1,3 +0,0 @@
-export * from "./cacheIndex";
-export * from "./filesystem";
-export * from "./keyStore";

src/lib/modules/crypto/rsa.ts

@@ -46,56 +46,6 @@ export const exportRSAKeyToBase64 = async (key: CryptoKey) => {
   return encodeToBase64((await exportRSAKey(key)).key);
 };
 
-export const importEncryptionKeyPairFromBase64 = async (
-  encryptKeyBase64: string,
-  decryptKeyBase64: string,
-) => {
-  const algorithm: RsaHashedImportParams = {
-    name: "RSA-OAEP",
-    hash: "SHA-256",
-  };
-  const encryptKey = await window.crypto.subtle.importKey(
-    "spki",
-    decodeFromBase64(encryptKeyBase64),
-    algorithm,
-    true,
-    ["encrypt", "wrapKey"],
-  );
-  const decryptKey = await window.crypto.subtle.importKey(
-    "pkcs8",
-    decodeFromBase64(decryptKeyBase64),
-    algorithm,
-    true,
-    ["decrypt", "unwrapKey"],
-  );
-  return { encryptKey, decryptKey };
-};
-
-export const importSigningKeyPairFromBase64 = async (
-  signKeyBase64: string,
-  verifyKeyBase64: string,
-) => {
-  const algorithm: RsaHashedImportParams = {
-    name: "RSA-PSS",
-    hash: "SHA-256",
-  };
-  const signKey = await window.crypto.subtle.importKey(
-    "pkcs8",
-    decodeFromBase64(signKeyBase64),
-    algorithm,
-    true,
-    ["sign"],
-  );
-  const verifyKey = await window.crypto.subtle.importKey(
-    "spki",
-    decodeFromBase64(verifyKeyBase64),
-    algorithm,
-    true,
-    ["verify"],
-  );
-  return { signKey, verifyKey };
-};
-
 export const makeRSAKeyNonextractable = async (key: CryptoKey) => {
   const { key: exportedKey, format } = await exportRSAKey(key);
   return await window.crypto.subtle.importKey(

src/lib/modules/file.ts

@@ -0,0 +1,89 @@
+import { writable, type Writable } from "svelte/store";
+import { callGetApi } from "$lib/hooks";
+import { unwrapDataKey, decryptString } from "$lib/modules/crypto";
+import type { DirectoryInfoResponse, FileInfoResponse } from "$lib/server/schemas";
+import {
+  directoryInfoStore,
+  fileInfoStore,
+  type DirectoryInfo,
+  type FileInfo,
+} from "$lib/stores/file";
+
+const fetchDirectoryInfo = async (
+  directoryId: "root" | number,
+  masterKey: CryptoKey,
+  infoStore: Writable<DirectoryInfo | null>,
+) => {
+  const res = await callGetApi(`/api/directory/${directoryId}`);
+  if (!res.ok) throw new Error("Failed to fetch directory information");
+  const { metadata, subDirectories, files }: DirectoryInfoResponse = await res.json();
+
+  let newInfo: DirectoryInfo;
+  if (directoryId === "root") {
+    newInfo = {
+      id: "root",
+      subDirectoryIds: subDirectories,
+      fileIds: files,
+    };
+  } else {
+    const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
+    newInfo = {
+      id: directoryId,
+      dataKey,
+      dataKeyVersion: new Date(metadata!.dekVersion),
+      name: await decryptString(metadata!.name, metadata!.nameIv, dataKey),
+      subDirectoryIds: subDirectories,
+      fileIds: files,
+    };
+  }
+
+  infoStore.update(() => newInfo);
+};
+
+export const getDirectoryInfo = (directoryId: "root" | number, masterKey: CryptoKey) => {
+  // TODO: MEK rotation
+
+  let info = directoryInfoStore.get(directoryId);
+  if (!info) {
+    info = writable(null);
+    directoryInfoStore.set(directoryId, info);
+  }
+
+  fetchDirectoryInfo(directoryId, masterKey, info);
+  return info;
+};
+
+const fetchFileInfo = async (
+  fileId: number,
+  masterKey: CryptoKey,
+  infoStore: Writable<FileInfo | null>,
+) => {
+  const res = await callGetApi(`/api/file/${fileId}`);
+  if (!res.ok) throw new Error("Failed to fetch file information");
+  const metadata: FileInfoResponse = await res.json();
+
+  const { dataKey } = await unwrapDataKey(metadata.dek, masterKey);
+  const newInfo: FileInfo = {
+    id: fileId,
+    dataKey,
+    dataKeyVersion: new Date(metadata.dekVersion),
+    contentType: metadata.contentType,
+    contentIv: metadata.contentIv,
+    name: await decryptString(metadata.name, metadata.nameIv, dataKey),
+  };
+
+  infoStore.update(() => newInfo);
+};
+
+export const getFileInfo = (fileId: number, masterKey: CryptoKey) => {
+  // TODO: MEK rotation
+
+  let info = fileInfoStore.get(fileId);
+  if (!info) {
+    info = writable(null);
+    fileInfoStore.set(fileId, info);
+  }
+
+  fetchFileInfo(fileId, masterKey, info);
+  return info;
+};

src/lib/modules/file/cache.ts

@@ -1,80 +0,0 @@
-import { LRUCache } from "lru-cache";
-import {
-  getFileCacheIndex as getFileCacheIndexFromIndexedDB,
-  storeFileCacheIndex,
-  deleteFileCacheIndex,
-  type FileCacheIndex,
-} from "$lib/indexedDB";
-import { readFile, writeFile, deleteFile, deleteDirectory } from "$lib/modules/opfs";
-import { getThumbnailUrl } from "$lib/modules/thumbnail";
-
-const fileCacheIndex = new Map<number, FileCacheIndex>();
-const loadedThumbnails = new LRUCache<number, string>({ max: 100 });
-
-export const prepareFileCache = async () => {
-  for (const cache of await getFileCacheIndexFromIndexedDB()) {
-    fileCacheIndex.set(cache.fileId, cache);
-  }
-};
-
-export const getFileCacheIndex = () => {
-  return Array.from(fileCacheIndex.values());
-};
-
-export const getFileCache = async (fileId: number) => {
-  const cacheIndex = fileCacheIndex.get(fileId);
-  if (!cacheIndex) return null;
-
-  cacheIndex.lastRetrievedAt = new Date();
-  storeFileCacheIndex(cacheIndex); // Intended
-  return await readFile(`/cache/${fileId}`);
-};
-
-export const storeFileCache = async (fileId: number, fileBuffer: ArrayBuffer) => {
-  const now = new Date();
-  await writeFile(`/cache/${fileId}`, fileBuffer);
-
-  const cacheIndex: FileCacheIndex = {
-    fileId,
-    cachedAt: now,
-    lastRetrievedAt: now,
-    size: fileBuffer.byteLength,
-  };
-  fileCacheIndex.set(fileId, cacheIndex);
-  await storeFileCacheIndex(cacheIndex);
-};
-
-export const deleteFileCache = async (fileId: number) => {
-  if (!fileCacheIndex.has(fileId)) return;
-
-  fileCacheIndex.delete(fileId);
-  await deleteFile(`/cache/${fileId}`);
-  await deleteFileCacheIndex(fileId);
-};
-
-export const getFileThumbnailCache = async (fileId: number) => {
-  const thumbnail = loadedThumbnails.get(fileId);
-  if (thumbnail) return thumbnail;
-
-  const thumbnailBuffer = await readFile(`/thumbnail/file/${fileId}`);
-  if (!thumbnailBuffer) return null;
-
-  const thumbnailUrl = getThumbnailUrl(thumbnailBuffer);
-  loadedThumbnails.set(fileId, thumbnailUrl);
-  return thumbnailUrl;
-};
-
-export const storeFileThumbnailCache = async (fileId: number, thumbnailBuffer: ArrayBuffer) => {
-  await writeFile(`/thumbnail/file/${fileId}`, thumbnailBuffer);
-  loadedThumbnails.set(fileId, getThumbnailUrl(thumbnailBuffer));
-};
-
-export const deleteFileThumbnailCache = async (fileId: number) => {
-  loadedThumbnails.delete(fileId);
-  await deleteFile(`/thumbnail/file/${fileId}`);
-};
-
-export const deleteAllFileThumbnailCaches = async () => {
-  loadedThumbnails.clear();
-  await deleteDirectory("/thumbnail/file");
-};

src/lib/modules/file/download.ts

@@ -1,84 +0,0 @@
-import axios from "axios";
-import { limitFunction } from "p-limit";
-import { writable, type Writable } from "svelte/store";
-import { decryptData } from "$lib/modules/crypto";
-import { fileDownloadStatusStore, type FileDownloadStatus } from "$lib/stores";
-
-const requestFileDownload = limitFunction(
-  async (status: Writable<FileDownloadStatus>, id: number) => {
-    status.update((value) => {
-      value.status = "downloading";
-      return value;
-    });
-
-    const res = await axios.get(`/api/file/${id}/download`, {
-      responseType: "arraybuffer",
-      onDownloadProgress: ({ progress, rate, estimated }) => {
-        status.update((value) => {
-          value.progress = progress;
-          value.rate = rate;
-          value.estimated = estimated;
-          return value;
-        });
-      },
-    });
-    const fileEncrypted: ArrayBuffer = res.data;
-
-    status.update((value) => {
-      value.status = "decryption-pending";
-      return value;
-    });
-    return fileEncrypted;
-  },
-  { concurrency: 1 },
-);
-
-const decryptFile = limitFunction(
-  async (
-    status: Writable<FileDownloadStatus>,
-    fileEncrypted: ArrayBuffer,
-    fileEncryptedIv: string,
-    dataKey: CryptoKey,
-  ) => {
-    status.update((value) => {
-      value.status = "decrypting";
-      return value;
-    });
-
-    const fileBuffer = await decryptData(fileEncrypted, fileEncryptedIv, dataKey);
-
-    status.update((value) => {
-      value.status = "decrypted";
-      value.result = fileBuffer;
-      return value;
-    });
-    return fileBuffer;
-  },
-  { concurrency: 4 },
-);
-
-export const downloadFile = async (id: number, fileEncryptedIv: string, dataKey: CryptoKey) => {
-  const status = writable<FileDownloadStatus>({
-    id,
-    status: "download-pending",
-  });
-  fileDownloadStatusStore.update((value) => {
-    value.push(status);
-    return value;
-  });
-
-  try {
-    return await decryptFile(
-      status,
-      await requestFileDownload(status, id),
-      fileEncryptedIv,
-      dataKey,
-    );
-  } catch (e) {
-    status.update((value) => {
-      value.status = "error";
-      return value;
-    });
-    throw e;
-  }
-};

src/lib/modules/file/index.ts

@@ -1,3 +0,0 @@
-export * from "./cache";
-export * from "./download";
-export * from "./upload";

src/lib/modules/file/upload.ts

@@ -1,264 +0,0 @@
-import axios from "axios";
-import ExifReader from "exifreader";
-import { limitFunction } from "p-limit";
-import { writable, type Writable } from "svelte/store";
-import {
-  encodeToBase64,
-  generateDataKey,
-  wrapDataKey,
-  encryptData,
-  encryptString,
-  digestMessage,
-  signMessageHmac,
-} from "$lib/modules/crypto";
-import { generateThumbnail } from "$lib/modules/thumbnail";
-import type {
-  FileThumbnailUploadRequest,
-  FileUploadRequest,
-  FileUploadResponse,
-} from "$lib/server/schemas";
-import {
-  fileUploadStatusStore,
-  type MasterKey,
-  type HmacSecret,
-  type FileUploadStatus,
-} from "$lib/stores";
-import { trpc } from "$trpc/client";
-
-const requestDuplicateFileScan = limitFunction(
-  async (file: File, hmacSecret: HmacSecret, onDuplicate: () => Promise<boolean>) => {
-    const fileBuffer = await file.arrayBuffer();
-    const fileSigned = encodeToBase64(await signMessageHmac(fileBuffer, hmacSecret.secret));
-
-    const files = await trpc().file.listByHash.query({
-      hskVersion: hmacSecret.version,
-      contentHmac: fileSigned,
-    });
-    if (files.length === 0 || (await onDuplicate())) {
-      return { fileBuffer, fileSigned };
-    } else {
-      return {};
-    }
-  },
-  { concurrency: 1 },
-);
-
-const getFileType = (file: File) => {
-  if (file.type) return file.type;
-  if (file.name.endsWith(".heic")) return "image/heic";
-  throw new Error("Unknown file type");
-};
-
-const extractExifDateTime = (fileBuffer: ArrayBuffer) => {
-  const exif = ExifReader.load(fileBuffer);
-  const dateTimeOriginal = exif["DateTimeOriginal"]?.description;
-  const offsetTimeOriginal = exif["OffsetTimeOriginal"]?.description;
-  if (!dateTimeOriginal) return undefined;
-
-  const [date, time] = dateTimeOriginal.split(" ");
-  if (!date || !time) return undefined;
-
-  const [year, month, day] = date.split(":").map(Number);
-  const [hour, minute, second] = time.split(":").map(Number);
-  if (!year || !month || !day || !hour || !minute || !second) return undefined;
-
-  if (!offsetTimeOriginal) {
-    // No timezone information.. Assume local timezone
-    return new Date(year, month - 1, day, hour, minute, second);
-  }
-
-  const offsetSign = offsetTimeOriginal[0] === "+" ? 1 : -1;
-  const [offsetHour, offsetMinute] = offsetTimeOriginal.slice(1).split(":").map(Number);
-
-  const utcDate = Date.UTC(year, month - 1, day, hour, minute, second);
-  const offsetMs = offsetSign * ((offsetHour ?? 0) * 60 + (offsetMinute ?? 0)) * 60 * 1000;
-  return new Date(utcDate - offsetMs);
-};
-
-const encryptFile = limitFunction(
-  async (
-    status: Writable<FileUploadStatus>,
-    file: File,
-    fileBuffer: ArrayBuffer,
-    masterKey: MasterKey,
-  ) => {
-    status.update((value) => {
-      value.status = "encrypting";
-      return value;
-    });
-
-    const fileType = getFileType(file);
-
-    let createdAt;
-    if (fileType.startsWith("image/")) {
-      createdAt = extractExifDateTime(fileBuffer);
-    }
-
-    const { dataKey, dataKeyVersion } = await generateDataKey();
-    const dataKeyWrapped = await wrapDataKey(dataKey, masterKey.key);
-
-    const fileEncrypted = await encryptData(fileBuffer, dataKey);
-    const fileEncryptedHash = encodeToBase64(await digestMessage(fileEncrypted.ciphertext));
-
-    const nameEncrypted = await encryptString(file.name, dataKey);
-    const createdAtEncrypted =
-      createdAt && (await encryptString(createdAt.getTime().toString(), dataKey));
-    const lastModifiedAtEncrypted = await encryptString(file.lastModified.toString(), dataKey);
-
-    const thumbnail = await generateThumbnail(fileBuffer, fileType);
-    const thumbnailBuffer = await thumbnail?.arrayBuffer();
-    const thumbnailEncrypted = thumbnailBuffer && (await encryptData(thumbnailBuffer, dataKey));
-
-    status.update((value) => {
-      value.status = "upload-pending";
-      return value;
-    });
-
-    return {
-      dataKeyWrapped,
-      dataKeyVersion,
-      fileType,
-      fileEncrypted,
-      fileEncryptedHash,
-      nameEncrypted,
-      createdAtEncrypted,
-      lastModifiedAtEncrypted,
-      thumbnail: thumbnailEncrypted && { plaintext: thumbnailBuffer, ...thumbnailEncrypted },
-    };
-  },
-  { concurrency: 4 },
-);
-
-const requestFileUpload = limitFunction(
-  async (status: Writable<FileUploadStatus>, form: FormData, thumbnailForm: FormData | null) => {
-    status.update((value) => {
-      value.status = "uploading";
-      return value;
-    });
-
-    const res = await axios.post("/api/file/upload", form, {
-      onUploadProgress: ({ progress, rate, estimated }) => {
-        status.update((value) => {
-          value.progress = progress;
-          value.rate = rate;
-          value.estimated = estimated;
-          return value;
-        });
-      },
-    });
-    const { file }: FileUploadResponse = res.data;
-
-    if (thumbnailForm) {
-      try {
-        await axios.post(`/api/file/${file}/thumbnail/upload`, thumbnailForm);
-      } catch (e) {
-        // TODO
-        console.error(e);
-      }
-    }
-
-    status.update((value) => {
-      value.status = "uploaded";
-      return value;
-    });
-
-    return { fileId: file };
-  },
-  { concurrency: 1 },
-);
-
-export const uploadFile = async (
-  file: File,
-  parentId: "root" | number,
-  hmacSecret: HmacSecret,
-  masterKey: MasterKey,
-  onDuplicate: () => Promise<boolean>,
-): Promise<
-  { fileId: number; fileBuffer: ArrayBuffer; thumbnailBuffer?: ArrayBuffer } | undefined
-> => {
-  const status = writable<FileUploadStatus>({
-    name: file.name,
-    parentId,
-    status: "encryption-pending",
-  });
-  fileUploadStatusStore.update((value) => {
-    value.push(status);
-    return value;
-  });
-
-  try {
-    const { fileBuffer, fileSigned } = await requestDuplicateFileScan(
-      file,
-      hmacSecret,
-      onDuplicate,
-    );
-    if (!fileBuffer || !fileSigned) {
-      status.update((value) => {
-        value.status = "canceled";
-        return value;
-      });
-      fileUploadStatusStore.update((value) => {
-        value = value.filter((v) => v !== status);
-        return value;
-      });
-      return undefined;
-    }
-
-    const {
-      dataKeyWrapped,
-      dataKeyVersion,
-      fileType,
-      fileEncrypted,
-      fileEncryptedHash,
-      nameEncrypted,
-      createdAtEncrypted,
-      lastModifiedAtEncrypted,
-      thumbnail,
-    } = await encryptFile(status, file, fileBuffer, masterKey);
-
-    const form = new FormData();
-    form.set(
-      "metadata",
-      JSON.stringify({
-        parent: parentId,
-        mekVersion: masterKey.version,
-        dek: dataKeyWrapped,
-        dekVersion: dataKeyVersion.toISOString(),
-        hskVersion: hmacSecret.version,
-        contentHmac: fileSigned,
-        contentType: fileType,
-        contentIv: fileEncrypted.iv,
-        name: nameEncrypted.ciphertext,
-        nameIv: nameEncrypted.iv,
-        createdAt: createdAtEncrypted?.ciphertext,
-        createdAtIv: createdAtEncrypted?.iv,
-        lastModifiedAt: lastModifiedAtEncrypted.ciphertext,
-        lastModifiedAtIv: lastModifiedAtEncrypted.iv,
-      } satisfies FileUploadRequest),
-    );
-    form.set("content", new Blob([fileEncrypted.ciphertext]));
-    form.set("checksum", fileEncryptedHash);
-
-    let thumbnailForm = null;
-    if (thumbnail) {
-      thumbnailForm = new FormData();
-      thumbnailForm.set(
-        "metadata",
-        JSON.stringify({
-          dekVersion: dataKeyVersion.toISOString(),
-          contentIv: thumbnail.iv,
-        } satisfies FileThumbnailUploadRequest),
-      );
-      thumbnailForm.set("content", new Blob([thumbnail.ciphertext]));
-    }
-
-    const { fileId } = await requestFileUpload(status, form, thumbnailForm);
-    return { fileId, fileBuffer, thumbnailBuffer: thumbnail?.plaintext };
-  } catch (e) {
-    status.update((value) => {
-      value.status = "error";
-      return value;
-    });
-    throw e;
-  }
-};

src/lib/modules/filesystem.ts

@@ -1,370 +0,0 @@
-import { TRPCClientError } from "@trpc/client";
-import { get, writable, type Writable } from "svelte/store";
-import {
-  getDirectoryInfos as getDirectoryInfosFromIndexedDB,
-  getDirectoryInfo as getDirectoryInfoFromIndexedDB,
-  storeDirectoryInfo,
-  deleteDirectoryInfo,
-  getFileInfos as getFileInfosFromIndexedDB,
-  getFileInfo as getFileInfoFromIndexedDB,
-  storeFileInfo,
-  deleteFileInfo,
-  getCategoryInfos as getCategoryInfosFromIndexedDB,
-  getCategoryInfo as getCategoryInfoFromIndexedDB,
-  storeCategoryInfo,
-  updateCategoryInfo as updateCategoryInfoInIndexedDB,
-  deleteCategoryInfo,
-  type DirectoryId,
-  type CategoryId,
-} from "$lib/indexedDB";
-import { unwrapDataKey, decryptString } from "$lib/modules/crypto";
-import { trpc } from "$trpc/client";
-
-export type DirectoryInfo =
-  | {
-      id: "root";
-      parentId?: undefined;
-      dataKey?: undefined;
-      dataKeyVersion?: undefined;
-      name?: undefined;
-      subDirectoryIds: number[];
-      fileIds: number[];
-    }
-  | {
-      id: number;
-      parentId: DirectoryId;
-      dataKey?: CryptoKey;
-      dataKeyVersion?: Date;
-      name: string;
-      subDirectoryIds: number[];
-      fileIds: number[];
-    };
-
-export interface FileInfo {
-  id: number;
-  parentId: DirectoryId;
-  dataKey?: CryptoKey;
-  dataKeyVersion?: Date;
-  contentType: string;
-  contentIv?: string;
-  name: string;
-  createdAt?: Date;
-  lastModifiedAt: Date;
-  categoryIds: number[];
-}
-
-export type CategoryInfo =
-  | {
-      id: "root";
-      dataKey?: undefined;
-      dataKeyVersion?: undefined;
-      name?: undefined;
-      subCategoryIds: number[];
-      files?: undefined;
-      isFileRecursive?: undefined;
-    }
-  | {
-      id: number;
-      dataKey?: CryptoKey;
-      dataKeyVersion?: Date;
-      name: string;
-      subCategoryIds: number[];
-      files: { id: number; isRecursive: boolean }[];
-      isFileRecursive: boolean;
-    };
-
-const directoryInfoStore = new Map<DirectoryId, Writable<DirectoryInfo | null>>();
-const fileInfoStore = new Map<number, Writable<FileInfo | null>>();
-const categoryInfoStore = new Map<CategoryId, Writable<CategoryInfo | null>>();
-
-const fetchDirectoryInfoFromIndexedDB = async (
-  id: DirectoryId,
-  info: Writable<DirectoryInfo | null>,
-) => {
-  if (get(info)) return;
-
-  const [directory, subDirectories, files] = await Promise.all([
-    id !== "root" ? getDirectoryInfoFromIndexedDB(id) : undefined,
-    getDirectoryInfosFromIndexedDB(id),
-    getFileInfosFromIndexedDB(id),
-  ]);
-  const subDirectoryIds = subDirectories.map(({ id }) => id);
-  const fileIds = files.map(({ id }) => id);
-
-  if (id === "root") {
-    info.set({ id, subDirectoryIds, fileIds });
-  } else {
-    if (!directory) return;
-    info.set({
-      id,
-      parentId: directory.parentId,
-      name: directory.name,
-      subDirectoryIds,
-      fileIds,
-    });
-  }
-};
-
-const fetchDirectoryInfoFromServer = async (
-  id: DirectoryId,
-  info: Writable<DirectoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  let data;
-  try {
-    data = await trpc().directory.get.query({ id });
-  } catch (e) {
-    if (e instanceof TRPCClientError && e.data?.code === "NOT_FOUND") {
-      info.set(null);
-      await deleteDirectoryInfo(id as number);
-      return;
-    }
-    throw new Error("Failed to fetch directory information");
-  }
-
-  const { metadata, subDirectories: subDirectoryIds, files: fileIds } = data;
-
-  if (id === "root") {
-    info.set({ id, subDirectoryIds, fileIds });
-  } else {
-    const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
-    const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
-
-    info.set({
-      id,
-      parentId: metadata!.parent,
-      dataKey,
-      dataKeyVersion: new Date(metadata!.dekVersion),
-      name,
-      subDirectoryIds,
-      fileIds,
-    });
-    await storeDirectoryInfo({ id, parentId: metadata!.parent, name });
-  }
-};
-
-const fetchDirectoryInfo = async (
-  id: DirectoryId,
-  info: Writable<DirectoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  await fetchDirectoryInfoFromIndexedDB(id, info);
-  await fetchDirectoryInfoFromServer(id, info, masterKey);
-};
-
-export const getDirectoryInfo = (id: DirectoryId, masterKey: CryptoKey) => {
-  // TODO: MEK rotation
-
-  let info = directoryInfoStore.get(id);
-  if (!info) {
-    info = writable(null);
-    directoryInfoStore.set(id, info);
-  }
-
-  fetchDirectoryInfo(id, info, masterKey); // Intended
-  return info;
-};
-
-const fetchFileInfoFromIndexedDB = async (id: number, info: Writable<FileInfo | null>) => {
-  if (get(info)) return;
-
-  const file = await getFileInfoFromIndexedDB(id);
-  if (!file) return;
-
-  info.set(file);
-};
-
-const decryptDate = async (ciphertext: string, iv: string, dataKey: CryptoKey) => {
-  return new Date(parseInt(await decryptString(ciphertext, iv, dataKey), 10));
-};
-
-const fetchFileInfoFromServer = async (
-  id: number,
-  info: Writable<FileInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  let metadata;
-  try {
-    metadata = await trpc().file.get.query({ id });
-  } catch (e) {
-    if (e instanceof TRPCClientError && e.data?.code === "NOT_FOUND") {
-      info.set(null);
-      await deleteFileInfo(id);
-      return;
-    }
-    throw new Error("Failed to fetch file information");
-  }
-  const { dataKey } = await unwrapDataKey(metadata.dek, masterKey);
-
-  const name = await decryptString(metadata.name, metadata.nameIv, dataKey);
-  const createdAt =
-    metadata.createdAt && metadata.createdAtIv
-      ? await decryptDate(metadata.createdAt, metadata.createdAtIv, dataKey)
-      : undefined;
-  const lastModifiedAt = await decryptDate(
-    metadata.lastModifiedAt,
-    metadata.lastModifiedAtIv,
-    dataKey,
-  );
-
-  info.set({
-    id,
-    parentId: metadata.parent,
-    dataKey,
-    dataKeyVersion: new Date(metadata.dekVersion),
-    contentType: metadata.contentType,
-    contentIv: metadata.contentIv,
-    name,
-    createdAt,
-    lastModifiedAt,
-    categoryIds: metadata.categories,
-  });
-  await storeFileInfo({
-    id,
-    parentId: metadata.parent,
-    name,
-    contentType: metadata.contentType,
-    createdAt,
-    lastModifiedAt,
-    categoryIds: metadata.categories,
-  });
-};
-
-const fetchFileInfo = async (id: number, info: Writable<FileInfo | null>, masterKey: CryptoKey) => {
-  await fetchFileInfoFromIndexedDB(id, info);
-  await fetchFileInfoFromServer(id, info, masterKey);
-};
-
-export const getFileInfo = (fileId: number, masterKey: CryptoKey) => {
-  // TODO: MEK rotation
-
-  let info = fileInfoStore.get(fileId);
-  if (!info) {
-    info = writable(null);
-    fileInfoStore.set(fileId, info);
-  }
-
-  fetchFileInfo(fileId, info, masterKey); // Intended
-  return info;
-};
-
-const fetchCategoryInfoFromIndexedDB = async (
-  id: CategoryId,
-  info: Writable<CategoryInfo | null>,
-) => {
-  if (get(info)) return;
-
-  const [category, subCategories] = await Promise.all([
-    id !== "root" ? getCategoryInfoFromIndexedDB(id) : undefined,
-    getCategoryInfosFromIndexedDB(id),
-  ]);
-  const subCategoryIds = subCategories.map(({ id }) => id);
-
-  if (id === "root") {
-    info.set({ id, subCategoryIds });
-  } else {
-    if (!category) return;
-    info.set({
-      id,
-      name: category.name,
-      subCategoryIds,
-      files: category.files,
-      isFileRecursive: category.isFileRecursive,
-    });
-  }
-};
-
-const fetchCategoryInfoFromServer = async (
-  id: CategoryId,
-  info: Writable<CategoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  let data;
-  try {
-    data = await trpc().category.get.query({ id });
-  } catch (e) {
-    if (e instanceof TRPCClientError && e.data?.code === "NOT_FOUND") {
-      info.set(null);
-      await deleteCategoryInfo(id as number);
-      return;
-    }
-    throw new Error("Failed to fetch category information");
-  }
-
-  const { metadata, subCategories } = data;
-
-  if (id === "root") {
-    info.set({ id, subCategoryIds: subCategories });
-  } else {
-    const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
-    const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
-
-    let files;
-    try {
-      files = await trpc().category.files.query({ id, recurse: true });
-    } catch {
-      throw new Error("Failed to fetch category files");
-    }
-
-    const filesMapped = files.map(({ file, isRecursive }) => ({ id: file, isRecursive }));
-    let isFileRecursive: boolean | undefined = undefined;
-
-    info.update((value) => {
-      const newValue = {
-        isFileRecursive: false,
-        ...value,
-        id,
-        dataKey,
-        dataKeyVersion: new Date(metadata!.dekVersion),
-        name,
-        subCategoryIds: subCategories,
-        files: filesMapped,
-      };
-      isFileRecursive = newValue.isFileRecursive;
-      return newValue;
-    });
-    await storeCategoryInfo({
-      id,
-      parentId: metadata!.parent,
-      name,
-      files: filesMapped,
-      isFileRecursive: isFileRecursive!,
-    });
-  }
-};
-
-const fetchCategoryInfo = async (
-  id: CategoryId,
-  info: Writable<CategoryInfo | null>,
-  masterKey: CryptoKey,
-) => {
-  await fetchCategoryInfoFromIndexedDB(id, info);
-  await fetchCategoryInfoFromServer(id, info, masterKey);
-};
-
-export const getCategoryInfo = (categoryId: CategoryId, masterKey: CryptoKey) => {
-  // TODO: MEK rotation
-
-  let info = categoryInfoStore.get(categoryId);
-  if (!info) {
-    info = writable(null);
-    categoryInfoStore.set(categoryId, info);
-  }
-
-  fetchCategoryInfo(categoryId, info, masterKey); // Intended
-  return info;
-};
-
-export const updateCategoryInfo = async (
-  categoryId: number,
-  changes: { isFileRecursive?: boolean },
-) => {
-  await updateCategoryInfoInIndexedDB(categoryId, changes);
-  categoryInfoStore.get(categoryId)?.update((value) => {
-    if (!value) return value;
-    if (changes.isFileRecursive !== undefined) {
-      value.isFileRecursive = changes.isFileRecursive;
-    }
-    return value;
-  });
-};

src/lib/modules/key.ts

@@ -1,65 +0,0 @@
-import { z } from "zod";
-import { storeClientKey } from "$lib/indexedDB";
-import type { ClientKeys } from "$lib/stores";
-
-const serializedClientKeysSchema = z.intersection(
-  z.object({
-    generator: z.literal("ArkVault"),
-    exportedAt: z.iso.datetime(),
-  }),
-  z.object({
-    version: z.literal(1),
-    encryptKey: z.base64().nonempty(),
-    decryptKey: z.base64().nonempty(),
-    signKey: z.base64().nonempty(),
-    verifyKey: z.base64().nonempty(),
-  }),
-);
-
-type SerializedClientKeys = z.infer<typeof serializedClientKeysSchema>;
-
-type DeserializedClientKeys = {
-  encryptKeyBase64: string;
-  decryptKeyBase64: string;
-  signKeyBase64: string;
-  verifyKeyBase64: string;
-};
-
-export const serializeClientKeys = ({
-  encryptKeyBase64,
-  decryptKeyBase64,
-  signKeyBase64,
-  verifyKeyBase64,
-}: DeserializedClientKeys) => {
-  return JSON.stringify({
-    version: 1,
-    generator: "ArkVault",
-    exportedAt: new Date().toISOString(),
-    encryptKey: encryptKeyBase64,
-    decryptKey: decryptKeyBase64,
-    signKey: signKeyBase64,
-    verifyKey: verifyKeyBase64,
-  } satisfies SerializedClientKeys);
-};
-
-export const deserializeClientKeys = (serialized: string) => {
-  const zodRes = serializedClientKeysSchema.safeParse(JSON.parse(serialized));
-  if (zodRes.success) {
-    return {
-      encryptKeyBase64: zodRes.data.encryptKey,
-      decryptKeyBase64: zodRes.data.decryptKey,
-      signKeyBase64: zodRes.data.signKey,
-      verifyKeyBase64: zodRes.data.verifyKey,
-    } satisfies DeserializedClientKeys;
-  }
-  return undefined;
-};
-
-export const storeClientKeys = async (clientKeys: ClientKeys) => {
-  await Promise.all([
-    storeClientKey(clientKeys.encryptKey, "encrypt"),
-    storeClientKey(clientKeys.decryptKey, "decrypt"),
-    storeClientKey(clientKeys.signKey, "sign"),
-    storeClientKey(clientKeys.verifyKey, "verify"),
-  ]);
-};

src/lib/modules/opfs.ts

@@ -1,97 +0,0 @@
-let rootHandle: FileSystemDirectoryHandle | null = null;
-
-export const prepareOpfs = async () => {
-  rootHandle = await navigator.storage.getDirectory();
-};
-
-const getFileHandle = async (path: string, create = true) => {
-  if (!rootHandle) {
-    throw new Error("OPFS not prepared");
-  } else if (path[0] !== "/") {
-    throw new Error("Path must be absolute");
-  }
-
-  const parts = path.split("/");
-  if (parts.length <= 1) {
-    throw new Error("Invalid path");
-  }
-
-  try {
-    let directoryHandle = rootHandle;
-    for (const part of parts.slice(0, -1)) {
-      if (!part) continue;
-      directoryHandle = await directoryHandle.getDirectoryHandle(part, { create });
-    }
-
-    const filename = parts[parts.length - 1]!;
-    const fileHandle = await directoryHandle.getFileHandle(filename, { create });
-    return { parentHandle: directoryHandle, filename, fileHandle };
-  } catch (e) {
-    if (e instanceof DOMException && e.name === "NotFoundError") {
-      return {};
-    }
-    throw e;
-  }
-};
-
-export const readFile = async (path: string) => {
-  const { fileHandle } = await getFileHandle(path, false);
-  if (!fileHandle) return null;
-
-  const file = await fileHandle.getFile();
-  return await file.arrayBuffer();
-};
-
-export const writeFile = async (path: string, data: ArrayBuffer) => {
-  const { fileHandle } = await getFileHandle(path);
-  const writable = await fileHandle!.createWritable();
-
-  try {
-    await writable.write(data);
-  } finally {
-    await writable.close();
-  }
-};
-
-export const deleteFile = async (path: string) => {
-  const { parentHandle, filename } = await getFileHandle(path, false);
-  if (!parentHandle) return;
-
-  await parentHandle.removeEntry(filename);
-};
-
-const getDirectoryHandle = async (path: string) => {
-  if (!rootHandle) {
-    throw new Error("OPFS not prepared");
-  } else if (path[0] !== "/") {
-    throw new Error("Path must be absolute");
-  }
-
-  const parts = path.split("/");
-  if (parts.length <= 1) {
-    throw new Error("Invalid path");
-  }
-
-  try {
-    let directoryHandle = rootHandle;
-    let parentHandle;
-    for (const part of parts.slice(1)) {
-      if (!part) continue;
-      parentHandle = directoryHandle;
-      directoryHandle = await directoryHandle.getDirectoryHandle(part);
-    }
-    return { directoryHandle, parentHandle };
-  } catch (e) {
-    if (e instanceof DOMException && e.name === "NotFoundError") {
-      return {};
-    }
-    throw e;
-  }
-};
-
-export const deleteDirectory = async (path: string) => {
-  const { directoryHandle, parentHandle } = await getDirectoryHandle(path);
-  if (!parentHandle) return;
-
-  await parentHandle.removeEntry(directoryHandle.name, { recursive: true });
-};

src/lib/modules/thumbnail.ts

@@ -1,127 +0,0 @@
-import { encodeToBase64 } from "$lib/modules/crypto";
-
-const scaleSize = (width: number, height: number, targetSize: number) => {
-  if (width <= targetSize || height <= targetSize) {
-    return { width, height };
-  }
-
-  const scale = targetSize / Math.min(width, height);
-  return {
-    width: Math.round(width * scale),
-    height: Math.round(height * scale),
-  };
-};
-
-const capture = (
-  width: number,
-  height: number,
-  drawer: (context: CanvasRenderingContext2D, width: number, height: number) => void,
-  targetSize = 250,
-) => {
-  return new Promise<Blob>((resolve, reject) => {
-    const canvas = document.createElement("canvas");
-    const { width: scaledWidth, height: scaledHeight } = scaleSize(width, height, targetSize);
-
-    canvas.width = scaledWidth;
-    canvas.height = scaledHeight;
-
-    const context = canvas.getContext("2d");
-    if (!context) {
-      return reject(new Error("Failed to generate thumbnail"));
-    }
-
-    drawer(context, scaledWidth, scaledHeight);
-    canvas.toBlob((blob) => {
-      if (blob && blob.type === "image/webp") {
-        resolve(blob);
-      } else {
-        reject(new Error("Failed to generate thumbnail"));
-      }
-    }, "image/webp");
-  });
-};
-
-const generateImageThumbnail = (imageUrl: string) => {
-  return new Promise<Blob>((resolve, reject) => {
-    const image = new Image();
-    image.onload = () => {
-      capture(image.width, image.height, (context, width, height) => {
-        context.drawImage(image, 0, 0, width, height);
-      })
-        .then(resolve)
-        .catch(reject);
-    };
-    image.onerror = reject;
-
-    image.src = imageUrl;
-  });
-};
-
-export const captureVideoThumbnail = (video: HTMLVideoElement) => {
-  return capture(video.videoWidth, video.videoHeight, (context, width, height) => {
-    context.drawImage(video, 0, 0, width, height);
-  });
-};
-
-const generateVideoThumbnail = (videoUrl: string, time = 0) => {
-  return new Promise<Blob>((resolve, reject) => {
-    const video = document.createElement("video");
-    video.onloadedmetadata = () => {
-      if (video.videoWidth === 0 || video.videoHeight === 0) {
-        return reject();
-      }
-
-      const callbackId = video.requestVideoFrameCallback(() => {
-        captureVideoThumbnail(video).then(resolve).catch(reject);
-        video.cancelVideoFrameCallback(callbackId);
-      });
-      video.currentTime = Math.min(time, video.duration);
-    };
-    video.onerror = reject;
-
-    video.muted = true;
-    video.playsInline = true;
-    video.src = videoUrl;
-  });
-};
-
-export const generateThumbnail = async (fileBuffer: ArrayBuffer, fileType: string) => {
-  let url;
-  try {
-    if (fileType.startsWith("image/")) {
-      const fileBlob = new Blob([fileBuffer], { type: fileType });
-      url = URL.createObjectURL(fileBlob);
-
-      try {
-        return await generateImageThumbnail(url);
-      } catch {
-        URL.revokeObjectURL(url);
-        url = undefined;
-
-        if (fileType === "image/heic") {
-          const { default: heic2any } = await import("heic2any");
-          url = URL.createObjectURL(
-            (await heic2any({ blob: fileBlob, toType: "image/png" })) as Blob,
-          );
-          return await generateImageThumbnail(url);
-        } else {
-          return null;
-        }
-      }
-    } else if (fileType.startsWith("video/")) {
-      url = URL.createObjectURL(new Blob([fileBuffer], { type: fileType }));
-      return await generateVideoThumbnail(url);
-    }
-    return null;
-  } catch {
-    return null;
-  } finally {
-    if (url) {
-      URL.revokeObjectURL(url);
-    }
-  }
-};
-
-export const getThumbnailUrl = (thumbnailBuffer: ArrayBuffer) => {
-  return `data:image/webp;base64,${encodeToBase64(thumbnailBuffer)}`;
-};

src/lib/server/db/category.ts

@@ -1,147 +0,0 @@
-import { IntegrityError } from "./error";
-import db from "./kysely";
-import type { Ciphertext } from "./schema";
-
-export type CategoryId = "root" | number;
-
-interface Category {
-  id: number;
-  parentId: CategoryId;
-  userId: number;
-  mekVersion: number;
-  encDek: string;
-  dekVersion: Date;
-  encName: Ciphertext;
-}
-
-export type NewCategory = Omit<Category, "id">;
-
-export const registerCategory = async (params: NewCategory) => {
-  await db.transaction().execute(async (trx) => {
-    const mek = await trx
-      .selectFrom("master_encryption_key")
-      .select("version")
-      .where("user_id", "=", params.userId)
-      .where("state", "=", "active")
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (mek?.version !== params.mekVersion) {
-      throw new IntegrityError("Inactive MEK version");
-    }
-
-    const { categoryId } = await trx
-      .insertInto("category")
-      .values({
-        parent_id: params.parentId !== "root" ? params.parentId : null,
-        user_id: params.userId,
-        master_encryption_key_version: params.mekVersion,
-        encrypted_data_encryption_key: params.encDek,
-        data_encryption_key_version: params.dekVersion,
-        encrypted_name: params.encName,
-      })
-      .returning("id as categoryId")
-      .executeTakeFirstOrThrow();
-    await trx
-      .insertInto("category_log")
-      .values({
-        category_id: categoryId,
-        timestamp: new Date(),
-        action: "create",
-        new_name: params.encName,
-      })
-      .execute();
-  });
-};
-
-export const getAllCategoriesByParent = async (userId: number, parentId: CategoryId) => {
-  let query = db.selectFrom("category").selectAll().where("user_id", "=", userId);
-  query =
-    parentId === "root"
-      ? query.where("parent_id", "is", null)
-      : query.where("parent_id", "=", parentId);
-  const categories = await query.execute();
-  return categories.map(
-    (category) =>
-      ({
-        id: category.id,
-        parentId: category.parent_id ?? "root",
-        userId: category.user_id,
-        mekVersion: category.master_encryption_key_version,
-        encDek: category.encrypted_data_encryption_key,
-        dekVersion: category.data_encryption_key_version,
-        encName: category.encrypted_name,
-      }) satisfies Category,
-  );
-};
-
-export const getCategory = async (userId: number, categoryId: number) => {
-  const category = await db
-    .selectFrom("category")
-    .selectAll()
-    .where("id", "=", categoryId)
-    .where("user_id", "=", userId)
-    .limit(1)
-    .executeTakeFirst();
-  return category
-    ? ({
-        id: category.id,
-        parentId: category.parent_id ?? "root",
-        userId: category.user_id,
-        mekVersion: category.master_encryption_key_version,
-        encDek: category.encrypted_data_encryption_key,
-        dekVersion: category.data_encryption_key_version,
-        encName: category.encrypted_name,
-      } satisfies Category)
-    : null;
-};
-
-export const setCategoryEncName = async (
-  userId: number,
-  categoryId: number,
-  dekVersion: Date,
-  encName: Ciphertext,
-) => {
-  await db.transaction().execute(async (trx) => {
-    const category = await trx
-      .selectFrom("category")
-      .select("data_encryption_key_version")
-      .where("id", "=", categoryId)
-      .where("user_id", "=", userId)
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (!category) {
-      throw new IntegrityError("Category not found");
-    } else if (category.data_encryption_key_version.getTime() !== dekVersion.getTime()) {
-      throw new IntegrityError("Invalid DEK version");
-    }
-
-    await trx
-      .updateTable("category")
-      .set({ encrypted_name: encName })
-      .where("id", "=", categoryId)
-      .where("user_id", "=", userId)
-      .execute();
-    await trx
-      .insertInto("category_log")
-      .values({
-        category_id: categoryId,
-        timestamp: new Date(),
-        action: "rename",
-        new_name: encName,
-      })
-      .execute();
-  });
-};
-
-export const unregisterCategory = async (userId: number, categoryId: number) => {
-  const res = await db
-    .deleteFrom("category")
-    .where("id", "=", categoryId)
-    .where("user_id", "=", userId)
-    .executeTakeFirst();
-  if (res.numDeletedRows === 0n) {
-    throw new IntegrityError("Category not found");
-  }
-};

src/lib/server/db/client.ts

@@ -1,158 +1,106 @@
-import pg from "pg";
+import { SqliteError } from "better-sqlite3";
+import { and, or, eq, gt, lte } from "drizzle-orm";
+import db from "./drizzle";
 import { IntegrityError } from "./error";
-import db from "./kysely";
-import type { UserClientState } from "./schema";
-
-interface Client {
-  id: number;
-  encPubKey: string;
-  sigPubKey: string;
-}
-
-interface UserClient {
-  userId: number;
-  clientId: number;
-  state: UserClientState;
-}
-
-interface UserClientWithDetails extends UserClient {
-  encPubKey: string;
-  sigPubKey: string;
-}
+import { client, userClient, userClientChallenge } from "./schema";
 
 export const createClient = async (encPubKey: string, sigPubKey: string, userId: number) => {
-  return await db
-    .transaction()
-    .setIsolationLevel("serializable")
-    .execute(async (trx) => {
-      const client = await trx
-        .selectFrom("client")
-        .where((eb) =>
-          eb.or([
-            eb("encryption_public_key", "=", encPubKey),
-            eb("encryption_public_key", "=", sigPubKey),
-            eb("signature_public_key", "=", encPubKey),
-            eb("signature_public_key", "=", sigPubKey),
-          ]),
-        )
-        .limit(1)
-        .executeTakeFirst();
-      if (client) {
+  return await db.transaction(
+    async (tx) => {
+      const clients = await tx
+        .select({ id: client.id })
+        .from(client)
+        .where(or(eq(client.encPubKey, sigPubKey), eq(client.sigPubKey, encPubKey)))
+        .limit(1);
+      if (clients.length !== 0) {
         throw new IntegrityError("Public key(s) already registered");
       }
 
-      const { clientId } = await trx
-        .insertInto("client")
-        .values({ encryption_public_key: encPubKey, signature_public_key: sigPubKey })
-        .returning("id as clientId")
-        .executeTakeFirstOrThrow();
-      await trx
-        .insertInto("user_client")
-        .values({ user_id: userId, client_id: clientId })
-        .execute();
-      return { id: clientId };
-    });
+      const newClients = await tx
+        .insert(client)
+        .values({ encPubKey, sigPubKey })
+        .returning({ id: client.id });
+      const { id: clientId } = newClients[0]!;
+      await tx.insert(userClient).values({ userId, clientId });
+
+      return clientId;
+    },
+    { behavior: "exclusive" },
+  );
 };
 
 export const getClient = async (clientId: number) => {
-  const client = await db
-    .selectFrom("client")
-    .selectAll()
-    .where("id", "=", clientId)
-    .limit(1)
-    .executeTakeFirst();
-  return client
-    ? ({
-        id: client.id,
-        encPubKey: client.encryption_public_key,
-        sigPubKey: client.signature_public_key,
-      } satisfies Client)
-    : null;
+  const clients = await db.select().from(client).where(eq(client.id, clientId)).limit(1);
+  return clients[0] ?? null;
 };
 
 export const getClientByPubKeys = async (encPubKey: string, sigPubKey: string) => {
-  const client = await db
-    .selectFrom("client")
-    .selectAll()
-    .where("encryption_public_key", "=", encPubKey)
-    .where("signature_public_key", "=", sigPubKey)
-    .limit(1)
-    .executeTakeFirst();
-  return client
-    ? ({
-        id: client.id,
-        encPubKey: client.encryption_public_key,
-        sigPubKey: client.signature_public_key,
-      } satisfies Client)
-    : null;
+  const clients = await db
+    .select()
+    .from(client)
+    .where(and(eq(client.encPubKey, encPubKey), eq(client.sigPubKey, sigPubKey)))
+    .limit(1);
+  return clients[0] ?? null;
 };
 
 export const createUserClient = async (userId: number, clientId: number) => {
   try {
-    await db.insertInto("user_client").values({ user_id: userId, client_id: clientId }).execute();
+    await db.insert(userClient).values({ userId, clientId });
   } catch (e) {
-    if (e instanceof pg.DatabaseError && e.code === "23505") {
+    if (e instanceof SqliteError && e.code === "SQLITE_CONSTRAINT_PRIMARYKEY") {
       throw new IntegrityError("User client already exists");
     }
     throw e;
   }
 };
 
+export const getAllUserClients = async (userId: number) => {
+  return await db.select().from(userClient).where(eq(userClient.userId, userId));
+};
+
 export const getUserClient = async (userId: number, clientId: number) => {
-  const userClient = await db
-    .selectFrom("user_client")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .where("client_id", "=", clientId)
-    .limit(1)
-    .executeTakeFirst();
-  return userClient
-    ? ({
-        userId: userClient.user_id,
-        clientId: userClient.client_id,
-        state: userClient.state,
-      } satisfies UserClient)
-    : null;
+  const userClients = await db
+    .select()
+    .from(userClient)
+    .where(and(eq(userClient.userId, userId), eq(userClient.clientId, clientId)))
+    .limit(1);
+  return userClients[0] ?? null;
 };
 
 export const getUserClientWithDetails = async (userId: number, clientId: number) => {
-  const userClient = await db
-    .selectFrom("user_client")
-    .innerJoin("client", "user_client.client_id", "client.id")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .where("client_id", "=", clientId)
-    .limit(1)
-    .executeTakeFirst();
-  return userClient
-    ? ({
-        userId: userClient.user_id,
-        clientId: userClient.client_id,
-        state: userClient.state,
-        encPubKey: userClient.encryption_public_key,
-        sigPubKey: userClient.signature_public_key,
-      } satisfies UserClientWithDetails)
-    : null;
+  const userClients = await db
+    .select()
+    .from(userClient)
+    .innerJoin(client, eq(userClient.clientId, client.id))
+    .where(and(eq(userClient.userId, userId), eq(userClient.clientId, clientId)))
+    .limit(1);
+  return userClients[0] ?? null;
 };
 
 export const setUserClientStateToPending = async (userId: number, clientId: number) => {
   await db
-    .updateTable("user_client")
+    .update(userClient)
     .set({ state: "pending" })
-    .where("user_id", "=", userId)
-    .where("client_id", "=", clientId)
-    .where("state", "=", "challenging")
-    .execute();
+    .where(
+      and(
+        eq(userClient.userId, userId),
+        eq(userClient.clientId, clientId),
+        eq(userClient.state, "challenging"),
+      ),
+    );
 };
 
 export const setUserClientStateToActive = async (userId: number, clientId: number) => {
   await db
-    .updateTable("user_client")
+    .update(userClient)
     .set({ state: "active" })
-    .where("user_id", "=", userId)
-    .where("client_id", "=", clientId)
-    .where("state", "=", "pending")
-    .execute();
+    .where(
+      and(
+        eq(userClient.userId, userId),
+        eq(userClient.clientId, clientId),
+        eq(userClient.state, "pending"),
+      ),
+    );
 };
 
 export const registerUserClientChallenge = async (
@@ -162,36 +110,30 @@ export const registerUserClientChallenge = async (
   allowedIp: string,
   expiresAt: Date,
 ) => {
-  const { id } = await db
-    .insertInto("user_client_challenge")
-    .values({
-      user_id: userId,
-      client_id: clientId,
-      answer,
-      allowed_ip: allowedIp,
-      expires_at: expiresAt,
-    })
-    .returning("id")
-    .executeTakeFirstOrThrow();
-  return { id };
+  await db.insert(userClientChallenge).values({
+    userId,
+    clientId,
+    answer,
+    allowedIp,
+    expiresAt,
+  });
 };
 
-export const consumeUserClientChallenge = async (
-  challengeId: number,
-  userId: number,
-  ip: string,
-) => {
-  const challenge = await db
-    .deleteFrom("user_client_challenge")
-    .where("id", "=", challengeId)
-    .where("user_id", "=", userId)
-    .where("allowed_ip", "=", ip)
-    .where("expires_at", ">", new Date())
-    .returning(["client_id", "answer"])
-    .executeTakeFirst();
-  return challenge ? { clientId: challenge.client_id, answer: challenge.answer } : null;
+export const consumeUserClientChallenge = async (userId: number, answer: string, ip: string) => {
+  const challenges = await db
+    .delete(userClientChallenge)
+    .where(
+      and(
+        eq(userClientChallenge.userId, userId),
+        eq(userClientChallenge.answer, answer),
+        eq(userClientChallenge.allowedIp, ip),
+        gt(userClientChallenge.expiresAt, new Date()),
+      ),
+    )
+    .returning({ clientId: userClientChallenge.clientId });
+  return challenges[0] ?? null;
 };
 
 export const cleanupExpiredUserClientChallenges = async () => {
-  await db.deleteFrom("user_client_challenge").where("expires_at", "<=", new Date()).execute();
+  await db.delete(userClientChallenge).where(lte(userClientChallenge.expiresAt, new Date()));
 };

src/lib/server/db/drizzle.ts

@@ -0,0 +1,15 @@
+import Database from "better-sqlite3";
+import { drizzle } from "drizzle-orm/better-sqlite3";
+import { migrate } from "drizzle-orm/better-sqlite3/migrator";
+import env from "$lib/server/loadenv";
+
+const client = new Database(env.databaseUrl);
+const db = drizzle(client);
+
+export const migrateDB = () => {
+  if (process.env.NODE_ENV === "production") {
+    migrate(db, { migrationsFolder: "./drizzle" });
+  }
+};
+
+export default db;

src/lib/server/db/error.ts

@@ -1,6 +1,4 @@
 type IntegrityErrorMessages =
-  // Category
-  | "Category not found"
   // Challenge
   | "Challenge already registered"
   // Client
@@ -9,8 +7,6 @@ type IntegrityErrorMessages =
   // File
   | "Directory not found"
   | "File not found"
-  | "File not found in category"
-  | "File already added to category"
   | "Invalid DEK version"
   // HSK
   | "HSK already registered"

src/lib/server/db/file.ts

@@ -1,25 +1,21 @@
-import { sql, type NotNull } from "kysely";
-import pg from "pg";
+import { and, eq, isNull } from "drizzle-orm";
+import db from "./drizzle";
 import { IntegrityError } from "./error";
-import db from "./kysely";
-import type { Ciphertext } from "./schema";
+import { directory, directoryLog, file, fileLog, hsk, mek } from "./schema";
 
-export type DirectoryId = "root" | number;
+type DirectoryId = "root" | number;
 
-interface Directory {
-  id: number;
+export interface NewDirectoryParams {
   parentId: DirectoryId;
   userId: number;
   mekVersion: number;
   encDek: string;
   dekVersion: Date;
-  encName: Ciphertext;
+  encName: string;
+  encNameIv: string;
 }
 
-export type NewDirectory = Omit<Directory, "id">;
-
-interface File {
-  id: number;
+export interface NewFileParams {
   parentId: DirectoryId;
   userId: number;
   path: string;
@@ -30,320 +26,198 @@ interface File {
   contentHmac: string | null;
   contentType: string;
   encContentIv: string;
-  encContentHash: string;
-  encName: Ciphertext;
-  encCreatedAt: Ciphertext | null;
-  encLastModifiedAt: Ciphertext;
+  encName: string;
+  encNameIv: string;
 }
 
-export type NewFile = Omit<File, "id">;
+export const registerDirectory = async (params: NewDirectoryParams) => {
+  await db.transaction(
+    async (tx) => {
+      const meks = await tx
+        .select({ version: mek.version })
+        .from(mek)
+        .where(and(eq(mek.userId, params.userId), eq(mek.state, "active")))
+        .limit(1);
+      if (meks[0]?.version !== params.mekVersion) {
+        throw new IntegrityError("Inactive MEK version");
+      }
 
-export const registerDirectory = async (params: NewDirectory) => {
-  await db.transaction().execute(async (trx) => {
-    const mek = await trx
-      .selectFrom("master_encryption_key")
-      .select("version")
-      .where("user_id", "=", params.userId)
-      .where("state", "=", "active")
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (mek?.version !== params.mekVersion) {
-      throw new IntegrityError("Inactive MEK version");
-    }
-
-    const { directoryId } = await trx
-      .insertInto("directory")
-      .values({
-        parent_id: params.parentId !== "root" ? params.parentId : null,
-        user_id: params.userId,
-        master_encryption_key_version: params.mekVersion,
-        encrypted_data_encryption_key: params.encDek,
-        data_encryption_key_version: params.dekVersion,
-        encrypted_name: params.encName,
-      })
-      .returning("id as directoryId")
-      .executeTakeFirstOrThrow();
-    await trx
-      .insertInto("directory_log")
-      .values({
-        directory_id: directoryId,
+      const newDirectories = await tx
+        .insert(directory)
+        .values({
+          parentId: params.parentId === "root" ? null : params.parentId,
+          userId: params.userId,
+          mekVersion: params.mekVersion,
+          encDek: params.encDek,
+          dekVersion: params.dekVersion,
+          encName: { ciphertext: params.encName, iv: params.encNameIv },
+        })
+        .returning({ id: directory.id });
+      const { id: directoryId } = newDirectories[0]!;
+      await tx.insert(directoryLog).values({
+        directoryId,
         timestamp: new Date(),
         action: "create",
-        new_name: params.encName,
-      })
-      .execute();
-  });
-};
-
-export const getAllDirectoriesByParent = async (userId: number, parentId: DirectoryId) => {
-  let query = db.selectFrom("directory").selectAll().where("user_id", "=", userId);
-  query =
-    parentId === "root"
-      ? query.where("parent_id", "is", null)
-      : query.where("parent_id", "=", parentId);
-  const directories = await query.execute();
-  return directories.map(
-    (directory) =>
-      ({
-        id: directory.id,
-        parentId: directory.parent_id ?? "root",
-        userId: directory.user_id,
-        mekVersion: directory.master_encryption_key_version,
-        encDek: directory.encrypted_data_encryption_key,
-        dekVersion: directory.data_encryption_key_version,
-        encName: directory.encrypted_name,
-      }) satisfies Directory,
+        newName: { ciphertext: params.encName, iv: params.encNameIv },
+      });
+    },
+    { behavior: "exclusive" },
   );
 };
 
+export const getAllDirectoriesByParent = async (userId: number, parentId: DirectoryId) => {
+  return await db
+    .select()
+    .from(directory)
+    .where(
+      and(
+        eq(directory.userId, userId),
+        parentId === "root" ? isNull(directory.parentId) : eq(directory.parentId, parentId),
+      ),
+    );
+};
+
 export const getDirectory = async (userId: number, directoryId: number) => {
-  const directory = await db
-    .selectFrom("directory")
-    .selectAll()
-    .where("id", "=", directoryId)
-    .where("user_id", "=", userId)
-    .limit(1)
-    .executeTakeFirst();
-  return directory
-    ? ({
-        id: directory.id,
-        parentId: directory.parent_id ?? "root",
-        userId: directory.user_id,
-        mekVersion: directory.master_encryption_key_version,
-        encDek: directory.encrypted_data_encryption_key,
-        dekVersion: directory.data_encryption_key_version,
-        encName: directory.encrypted_name,
-      } satisfies Directory)
-    : null;
+  const res = await db
+    .select()
+    .from(directory)
+    .where(and(eq(directory.userId, userId), eq(directory.id, directoryId)))
+    .limit(1);
+  return res[0] ?? null;
 };
 
 export const setDirectoryEncName = async (
   userId: number,
   directoryId: number,
   dekVersion: Date,
-  encName: Ciphertext,
+  encName: string,
+  encNameIv: string,
 ) => {
-  await db.transaction().execute(async (trx) => {
-    const directory = await trx
-      .selectFrom("directory")
-      .select("data_encryption_key_version")
-      .where("id", "=", directoryId)
-      .where("user_id", "=", userId)
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (!directory) {
-      throw new IntegrityError("Directory not found");
-    } else if (directory.data_encryption_key_version.getTime() !== dekVersion.getTime()) {
-      throw new IntegrityError("Invalid DEK version");
-    }
+  await db.transaction(
+    async (tx) => {
+      const directories = await tx
+        .select({ version: directory.dekVersion })
+        .from(directory)
+        .where(and(eq(directory.userId, userId), eq(directory.id, directoryId)))
+        .limit(1);
+      if (!directories[0]) {
+        throw new IntegrityError("Directory not found");
+      } else if (directories[0].version.getTime() !== dekVersion.getTime()) {
+        throw new IntegrityError("Invalid DEK version");
+      }
 
-    await trx
-      .updateTable("directory")
-      .set({ encrypted_name: encName })
-      .where("id", "=", directoryId)
-      .where("user_id", "=", userId)
-      .execute();
-    await trx
-      .insertInto("directory_log")
-      .values({
-        directory_id: directoryId,
+      await tx
+        .update(directory)
+        .set({ encName: { ciphertext: encName, iv: encNameIv } })
+        .where(and(eq(directory.userId, userId), eq(directory.id, directoryId)));
+      await tx.insert(directoryLog).values({
+        directoryId,
         timestamp: new Date(),
         action: "rename",
-        new_name: encName,
-      })
-      .execute();
-  });
+        newName: { ciphertext: encName, iv: encNameIv },
+      });
+    },
+    { behavior: "exclusive" },
+  );
 };
 
 export const unregisterDirectory = async (userId: number, directoryId: number) => {
-  return await db
-    .transaction()
-    .setIsolationLevel("repeatable read") // TODO: Sufficient?
-    .execute(async (trx) => {
+  return await db.transaction(
+    async (tx) => {
       const unregisterFiles = async (parentId: number) => {
-        const files = await trx
-          .selectFrom("file")
-          .leftJoin("thumbnail", "file.id", "thumbnail.file_id")
-          .select(["file.id", "file.path", "thumbnail.path as thumbnailPath"])
-          .where("file.parent_id", "=", parentId)
-          .where("file.user_id", "=", userId)
-          .forUpdate("file")
-          .execute();
-        await trx
-          .deleteFrom("file")
-          .where("parent_id", "=", parentId)
-          .where("user_id", "=", userId)
-          .execute();
-        return files;
+        const files = await tx
+          .delete(file)
+          .where(and(eq(file.userId, userId), eq(file.parentId, parentId)))
+          .returning({ path: file.path });
+        return files.map(({ path }) => path);
       };
-      const unregisterDirectoryRecursively = async (
-        directoryId: number,
-      ): Promise<{ id: number; path: string; thumbnailPath: string | null }[]> => {
-        const files = await unregisterFiles(directoryId);
-        const subDirectories = await trx
-          .selectFrom("directory")
-          .select("id")
-          .where("parent_id", "=", directoryId)
-          .where("user_id", "=", userId)
-          .execute();
+      const unregisterDirectoryRecursively = async (directoryId: number): Promise<string[]> => {
+        const filePaths = await unregisterFiles(directoryId);
+        const subDirectories = await tx
+          .select({ id: directory.id })
+          .from(directory)
+          .where(and(eq(directory.userId, userId), eq(directory.parentId, directoryId)));
         const subDirectoryFilePaths = await Promise.all(
           subDirectories.map(async ({ id }) => await unregisterDirectoryRecursively(id)),
         );
 
-        const deleteRes = await trx
-          .deleteFrom("directory")
-          .where("id", "=", directoryId)
-          .where("user_id", "=", userId)
-          .executeTakeFirst();
-        if (deleteRes.numDeletedRows === 0n) {
+        const deleteRes = await tx.delete(directory).where(eq(directory.id, directoryId));
+        if (deleteRes.changes === 0) {
           throw new IntegrityError("Directory not found");
         }
-        return files.concat(...subDirectoryFilePaths);
+        return filePaths.concat(...subDirectoryFilePaths);
       };
       return await unregisterDirectoryRecursively(directoryId);
-    });
+    },
+    { behavior: "exclusive" },
+  );
 };
 
-export const registerFile = async (params: NewFile) => {
+export const registerFile = async (params: NewFileParams) => {
   if ((params.hskVersion && !params.contentHmac) || (!params.hskVersion && params.contentHmac)) {
     throw new Error("Invalid arguments");
   }
 
-  return await db.transaction().execute(async (trx) => {
-    const mek = await trx
-      .selectFrom("master_encryption_key")
-      .select("version")
-      .where("user_id", "=", params.userId)
-      .where("state", "=", "active")
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (mek?.version !== params.mekVersion) {
-      throw new IntegrityError("Inactive MEK version");
-    }
-
-    if (params.hskVersion) {
-      const hsk = await trx
-        .selectFrom("hmac_secret_key")
-        .select("version")
-        .where("user_id", "=", params.userId)
-        .where("state", "=", "active")
-        .limit(1)
-        .forUpdate()
-        .executeTakeFirst();
-      if (hsk?.version !== params.hskVersion) {
-        throw new IntegrityError("Inactive HSK version");
+  await db.transaction(
+    async (tx) => {
+      const meks = await tx
+        .select({ version: mek.version })
+        .from(mek)
+        .where(and(eq(mek.userId, params.userId), eq(mek.state, "active")))
+        .limit(1);
+      if (meks[0]?.version !== params.mekVersion) {
+        throw new IntegrityError("Inactive MEK version");
       }
-    }
 
-    const { fileId } = await trx
-      .insertInto("file")
-      .values({
-        parent_id: params.parentId !== "root" ? params.parentId : null,
-        user_id: params.userId,
-        path: params.path,
-        master_encryption_key_version: params.mekVersion,
-        encrypted_data_encryption_key: params.encDek,
-        data_encryption_key_version: params.dekVersion,
-        hmac_secret_key_version: params.hskVersion,
-        content_hmac: params.contentHmac,
-        content_type: params.contentType,
-        encrypted_content_iv: params.encContentIv,
-        encrypted_content_hash: params.encContentHash,
-        encrypted_name: params.encName,
-        encrypted_created_at: params.encCreatedAt,
-        encrypted_last_modified_at: params.encLastModifiedAt,
-      })
-      .returning("id as fileId")
-      .executeTakeFirstOrThrow();
-    await trx
-      .insertInto("file_log")
-      .values({
-        file_id: fileId,
+      if (params.hskVersion) {
+        const hsks = await tx
+          .select({ version: hsk.version })
+          .from(hsk)
+          .where(and(eq(hsk.userId, params.userId), eq(hsk.state, "active")))
+          .limit(1);
+        if (hsks[0]?.version !== params.hskVersion) {
+          throw new IntegrityError("Inactive HSK version");
+        }
+      }
+
+      const newFiles = await tx
+        .insert(file)
+        .values({
+          path: params.path,
+          parentId: params.parentId === "root" ? null : params.parentId,
+          userId: params.userId,
+          mekVersion: params.mekVersion,
+          hskVersion: params.hskVersion,
+          contentHmac: params.contentHmac,
+          contentType: params.contentType,
+          encDek: params.encDek,
+          dekVersion: params.dekVersion,
+          encContentIv: params.encContentIv,
+          encName: { ciphertext: params.encName, iv: params.encNameIv },
+        })
+        .returning({ id: file.id });
+      const { id: fileId } = newFiles[0]!;
+      await tx.insert(fileLog).values({
+        fileId,
         timestamp: new Date(),
         action: "create",
-        new_name: params.encName,
-      })
-      .execute();
-    return { id: fileId };
-  });
-};
-
-export const getAllFilesByParent = async (userId: number, parentId: DirectoryId) => {
-  let query = db.selectFrom("file").selectAll().where("user_id", "=", userId);
-  query =
-    parentId === "root"
-      ? query.where("parent_id", "is", null)
-      : query.where("parent_id", "=", parentId);
-  const files = await query.execute();
-  return files.map(
-    (file) =>
-      ({
-        id: file.id,
-        parentId: file.parent_id ?? "root",
-        userId: file.user_id,
-        path: file.path,
-        mekVersion: file.master_encryption_key_version,
-        encDek: file.encrypted_data_encryption_key,
-        dekVersion: file.data_encryption_key_version,
-        hskVersion: file.hmac_secret_key_version,
-        contentHmac: file.content_hmac,
-        contentType: file.content_type,
-        encContentIv: file.encrypted_content_iv,
-        encContentHash: file.encrypted_content_hash,
-        encName: file.encrypted_name,
-        encCreatedAt: file.encrypted_created_at,
-        encLastModifiedAt: file.encrypted_last_modified_at,
-      }) satisfies File,
+        newName: { ciphertext: params.encName, iv: params.encNameIv },
+      });
+    },
+    { behavior: "exclusive" },
   );
 };
 
-export const getAllFilesByCategory = async (
-  userId: number,
-  categoryId: number,
-  recurse: boolean,
-) => {
-  const files = await db
-    .withRecursive("cte", (db) =>
-      db
-        .selectFrom("category")
-        .leftJoin("file_category", "category.id", "file_category.category_id")
-        .select(["id", "parent_id", "user_id", "file_category.file_id"])
-        .select(sql<number>`0`.as("depth"))
-        .where("id", "=", categoryId)
-        .$if(recurse, (qb) =>
-          qb.unionAll((db) =>
-            db
-              .selectFrom("category")
-              .leftJoin("file_category", "category.id", "file_category.category_id")
-              .innerJoin("cte", "category.parent_id", "cte.id")
-              .select([
-                "category.id",
-                "category.parent_id",
-                "category.user_id",
-                "file_category.file_id",
-              ])
-              .select(sql<number>`cte.depth + 1`.as("depth")),
-          ),
-        ),
-    )
-    .selectFrom("cte")
-    .select(["file_id", "depth"])
-    .distinctOn("file_id")
-    .where("user_id", "=", userId)
-    .where("file_id", "is not", null)
-    .$narrowType<{ file_id: NotNull }>()
-    .orderBy("file_id")
-    .orderBy("depth")
-    .execute();
-  return files.map(({ file_id, depth }) => ({ id: file_id, isRecursive: depth > 0 }));
-};
-
-export const getAllFileIds = async (userId: number) => {
-  const files = await db.selectFrom("file").select("id").where("user_id", "=", userId).execute();
-  return files.map(({ id }) => id);
+export const getAllFilesByParent = async (userId: number, parentId: DirectoryId) => {
+  return await db
+    .select()
+    .from(file)
+    .where(
+      and(
+        eq(file.userId, userId),
+        parentId === "root" ? isNull(file.parentId) : eq(file.parentId, parentId),
+      ),
+    );
 };
 
 export const getAllFileIdsByContentHmac = async (
@@ -351,156 +225,69 @@ export const getAllFileIdsByContentHmac = async (
   hskVersion: number,
   contentHmac: string,
 ) => {
-  const files = await db
-    .selectFrom("file")
-    .select("id")
-    .where("user_id", "=", userId)
-    .where("hmac_secret_key_version", "=", hskVersion)
-    .where("content_hmac", "=", contentHmac)
-    .execute();
-  return files.map(({ id }) => id);
+  return await db
+    .select({ id: file.id })
+    .from(file)
+    .where(
+      and(
+        eq(file.userId, userId),
+        eq(file.hskVersion, hskVersion),
+        eq(file.contentHmac, contentHmac),
+      ),
+    );
 };
 
 export const getFile = async (userId: number, fileId: number) => {
-  const file = await db
-    .selectFrom("file")
-    .selectAll()
-    .where("id", "=", fileId)
-    .where("user_id", "=", userId)
-    .limit(1)
-    .executeTakeFirst();
-  return file
-    ? ({
-        id: file.id,
-        parentId: file.parent_id ?? "root",
-        userId: file.user_id,
-        path: file.path,
-        mekVersion: file.master_encryption_key_version,
-        encDek: file.encrypted_data_encryption_key,
-        dekVersion: file.data_encryption_key_version,
-        hskVersion: file.hmac_secret_key_version,
-        contentHmac: file.content_hmac,
-        contentType: file.content_type,
-        encContentIv: file.encrypted_content_iv,
-        encContentHash: file.encrypted_content_hash,
-        encName: file.encrypted_name,
-        encCreatedAt: file.encrypted_created_at,
-        encLastModifiedAt: file.encrypted_last_modified_at,
-      } satisfies File)
-    : null;
+  const res = await db
+    .select()
+    .from(file)
+    .where(and(eq(file.userId, userId), eq(file.id, fileId)))
+    .limit(1);
+  return res[0] ?? null;
 };
 
 export const setFileEncName = async (
   userId: number,
   fileId: number,
   dekVersion: Date,
-  encName: Ciphertext,
+  encName: string,
+  encNameIv: string,
 ) => {
-  await db.transaction().execute(async (trx) => {
-    const file = await trx
-      .selectFrom("file")
-      .select("data_encryption_key_version")
-      .where("id", "=", fileId)
-      .where("user_id", "=", userId)
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (!file) {
-      throw new IntegrityError("File not found");
-    } else if (file.data_encryption_key_version.getTime() !== dekVersion.getTime()) {
-      throw new IntegrityError("Invalid DEK version");
-    }
+  await db.transaction(
+    async (tx) => {
+      const files = await tx
+        .select({ version: file.dekVersion })
+        .from(file)
+        .where(and(eq(file.userId, userId), eq(file.id, fileId)))
+        .limit(1);
+      if (!files[0]) {
+        throw new IntegrityError("File not found");
+      } else if (files[0].version.getTime() !== dekVersion.getTime()) {
+        throw new IntegrityError("Invalid DEK version");
+      }
 
-    await trx
-      .updateTable("file")
-      .set({ encrypted_name: encName })
-      .where("id", "=", fileId)
-      .where("user_id", "=", userId)
-      .execute();
-    await trx
-      .insertInto("file_log")
-      .values({
-        file_id: fileId,
+      await tx
+        .update(file)
+        .set({ encName: { ciphertext: encName, iv: encNameIv } })
+        .where(and(eq(file.userId, userId), eq(file.id, fileId)));
+      await tx.insert(fileLog).values({
+        fileId,
         timestamp: new Date(),
         action: "rename",
-        new_name: encName,
-      })
-      .execute();
-  });
+        newName: { ciphertext: encName, iv: encNameIv },
+      });
+    },
+    { behavior: "exclusive" },
+  );
 };
 
 export const unregisterFile = async (userId: number, fileId: number) => {
-  return await db.transaction().execute(async (trx) => {
-    const file = await trx
-      .selectFrom("file")
-      .leftJoin("thumbnail", "file.id", "thumbnail.file_id")
-      .select(["file.path", "thumbnail.path as thumbnailPath"])
-      .where("file.id", "=", fileId)
-      .where("file.user_id", "=", userId)
-      .forUpdate("file")
-      .executeTakeFirst();
-    if (!file) {
-      throw new IntegrityError("File not found");
-    }
-
-    await trx.deleteFrom("file").where("id", "=", fileId).execute();
-    return file;
-  });
-};
-
-export const addFileToCategory = async (fileId: number, categoryId: number) => {
-  await db.transaction().execute(async (trx) => {
-    try {
-      await trx
-        .insertInto("file_category")
-        .values({ file_id: fileId, category_id: categoryId })
-        .execute();
-      await trx
-        .insertInto("file_log")
-        .values({
-          file_id: fileId,
-          timestamp: new Date(),
-          action: "add-to-category",
-          category_id: categoryId,
-        })
-        .execute();
-    } catch (e) {
-      if (e instanceof pg.DatabaseError && e.code === "23505") {
-        throw new IntegrityError("File already added to category");
-      }
-      throw e;
-    }
-  });
-};
-
-export const getAllFileCategories = async (fileId: number) => {
-  const categories = await db
-    .selectFrom("file_category")
-    .select("category_id")
-    .where("file_id", "=", fileId)
-    .execute();
-  return categories.map(({ category_id }) => ({ id: category_id }));
-};
-
-export const removeFileFromCategory = async (fileId: number, categoryId: number) => {
-  await db.transaction().execute(async (trx) => {
-    const res = await trx
-      .deleteFrom("file_category")
-      .where("file_id", "=", fileId)
-      .where("category_id", "=", categoryId)
-      .executeTakeFirst();
-    if (res.numDeletedRows === 0n) {
-      throw new IntegrityError("File not found in category");
-    }
-
-    await trx
-      .insertInto("file_log")
-      .values({
-        file_id: fileId,
-        timestamp: new Date(),
-        action: "remove-from-category",
-        category_id: categoryId,
-      })
-      .execute();
-  });
+  const files = await db
+    .delete(file)
+    .where(and(eq(file.userId, userId), eq(file.id, fileId)))
+    .returning({ path: file.path });
+  if (!files[0]) {
+    throw new IntegrityError("File not found");
+  }
+  return files[0].path;
 };

src/lib/server/db/hsk.ts

@@ -1,15 +1,8 @@
-import pg from "pg";
+import { SqliteError } from "better-sqlite3";
+import { and, eq } from "drizzle-orm";
+import db from "./drizzle";
 import { IntegrityError } from "./error";
-import db from "./kysely";
-import type { HskState } from "./schema";
-
-interface Hsk {
-  userId: number;
-  version: number;
-  state: HskState;
-  mekVersion: number;
-  encHsk: string;
-}
+import { hsk, hskLog } from "./schema";
 
 export const registerInitialHsk = async (
   userId: number,
@@ -17,52 +10,37 @@ export const registerInitialHsk = async (
   mekVersion: number,
   encHsk: string,
 ) => {
-  await db.transaction().execute(async (trx) => {
-    try {
-      await trx
-        .insertInto("hmac_secret_key")
-        .values({
-          user_id: userId,
+  await db.transaction(
+    async (tx) => {
+      try {
+        await tx.insert(hsk).values({
+          userId,
           version: 1,
           state: "active",
-          master_encryption_key_version: mekVersion,
-          encrypted_key: encHsk,
-        })
-        .execute();
-      await trx
-        .insertInto("hmac_secret_key_log")
-        .values({
-          user_id: userId,
-          hmac_secret_key_version: 1,
+          mekVersion,
+          encHsk,
+        });
+        await tx.insert(hskLog).values({
+          userId,
+          hskVersion: 1,
           timestamp: new Date(),
           action: "create",
-          action_by: createdBy,
-        })
-        .execute();
-    } catch (e) {
-      if (e instanceof pg.DatabaseError && e.code === "23505") {
-        throw new IntegrityError("HSK already registered");
+          actionBy: createdBy,
+        });
+      } catch (e) {
+        if (e instanceof SqliteError && e.code === "SQLITE_CONSTRAINT_PRIMARYKEY") {
+          throw new IntegrityError("HSK already registered");
+        }
+        throw e;
       }
-      throw e;
-    }
-  });
+    },
+    { behavior: "exclusive" },
+  );
 };
 
 export const getAllValidHsks = async (userId: number) => {
-  const hsks = await db
-    .selectFrom("hmac_secret_key")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .where("state", "=", "active")
-    .execute();
-  return hsks.map(
-    ({ user_id, version, state, master_encryption_key_version, encrypted_key }) =>
-      ({
-        userId: user_id,
-        version,
-        state: state as "active",
-        mekVersion: master_encryption_key_version,
-        encHsk: encrypted_key,
-      }) satisfies Hsk,
-  );
+  return await db
+    .select()
+    .from(hsk)
+    .where(and(eq(hsk.userId, userId), eq(hsk.state, "active")));
 };

src/lib/server/db/index.ts

@@ -1,10 +0,0 @@
-export * as CategoryRepo from "./category";
-export * as ClientRepo from "./client";
-export * as FileRepo from "./file";
-export * as HskRepo from "./hsk";
-export * as MediaRepo from "./media";
-export * as MekRepo from "./mek";
-export * as SessionRepo from "./session";
-export * as UserRepo from "./user";
-
-export * from "./error";

src/lib/server/db/kysely.ts

@@ -1,47 +0,0 @@
-import { Kysely, PostgresDialect, Migrator } from "kysely";
-import pg from "pg";
-import env from "$lib/server/loadenv";
-import migrations from "./migrations";
-import type { Database } from "./schema";
-
-const dialect = new PostgresDialect({
-  pool: new pg.Pool({
-    host: env.database.host,
-    port: env.database.port,
-    user: env.database.user,
-    password: env.database.password,
-    database: env.database.name,
-  }),
-});
-
-const db = new Kysely<Database>({ dialect });
-
-export const migrateDB = async () => {
-  if (env.nodeEnv !== "production") return;
-
-  const migrator = new Migrator({
-    db,
-    provider: {
-      async getMigrations() {
-        return migrations;
-      },
-    },
-  });
-  const { error, results } = await migrator.migrateToLatest();
-  if (error) {
-    const migration = results?.find(({ status }) => status === "Error");
-    if (migration) {
-      console.error(`Migration "${migration.migrationName}" failed.`);
-    }
-    console.error(error);
-    process.exit(1);
-  }
-
-  if (results?.length === 0) {
-    console.log("Database is up-to-date.");
-  } else {
-    console.log("Database migration completed.");
-  }
-};
-
-export default db;

src/lib/server/db/media.ts

@@ -1,110 +0,0 @@
-import type { NotNull } from "kysely";
-import { IntegrityError } from "./error";
-import db from "./kysely";
-
-interface Thumbnail {
-  id: number;
-  path: string;
-  updatedAt: Date;
-  encContentIv: string;
-}
-
-interface FileThumbnail extends Thumbnail {
-  fileId: number;
-}
-
-export const updateFileThumbnail = async (
-  userId: number,
-  fileId: number,
-  dekVersion: Date,
-  path: string,
-  encContentIv: string,
-) => {
-  return await db.transaction().execute(async (trx) => {
-    const file = await trx
-      .selectFrom("file")
-      .select("data_encryption_key_version")
-      .where("id", "=", fileId)
-      .where("user_id", "=", userId)
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    if (!file) {
-      throw new IntegrityError("File not found");
-    } else if (file.data_encryption_key_version.getTime() !== dekVersion.getTime()) {
-      throw new IntegrityError("Invalid DEK version");
-    }
-
-    const thumbnail = await trx
-      .selectFrom("thumbnail")
-      .select("path as oldPath")
-      .where("file_id", "=", fileId)
-      .limit(1)
-      .forUpdate()
-      .executeTakeFirst();
-    const now = new Date();
-
-    await trx
-      .insertInto("thumbnail")
-      .values({
-        file_id: fileId,
-        path,
-        updated_at: now,
-        encrypted_content_iv: encContentIv,
-      })
-      .onConflict((oc) =>
-        oc.column("file_id").doUpdateSet({
-          path,
-          updated_at: now,
-          encrypted_content_iv: encContentIv,
-        }),
-      )
-      .execute();
-    return thumbnail?.oldPath ?? null;
-  });
-};
-
-export const getFileThumbnail = async (userId: number, fileId: number) => {
-  const thumbnail = await db
-    .selectFrom("thumbnail")
-    .innerJoin("file", "thumbnail.file_id", "file.id")
-    .selectAll("thumbnail")
-    .where("file.id", "=", fileId)
-    .where("file.user_id", "=", userId)
-    .$narrowType<{ file_id: NotNull }>()
-    .limit(1)
-    .executeTakeFirst();
-  return thumbnail
-    ? ({
-        id: thumbnail.id,
-        fileId: thumbnail.file_id,
-        path: thumbnail.path,
-        encContentIv: thumbnail.encrypted_content_iv,
-        updatedAt: thumbnail.updated_at,
-      } satisfies FileThumbnail)
-    : null;
-};
-
-export const getMissingFileThumbnails = async (userId: number, limit: number = 100) => {
-  const files = await db
-    .selectFrom("file")
-    .select("id")
-    .where("user_id", "=", userId)
-    .where((eb) =>
-      eb.or([eb("content_type", "like", "image/%"), eb("content_type", "like", "video/%")]),
-    )
-    .where((eb) =>
-      eb.not(
-        eb.exists(
-          eb
-            .selectFrom("thumbnail")
-            .select("thumbnail.id")
-            .whereRef("thumbnail.file_id", "=", "file.id")
-            .limit(1),
-        ),
-      ),
-    )
-    .limit(limit)
-    .execute();
-  return files.map(({ id }) => id);
-};

src/lib/server/db/mek.ts

@@ -1,19 +1,8 @@
-import pg from "pg";
+import { SqliteError } from "better-sqlite3";
+import { and, or, eq } from "drizzle-orm";
+import db from "./drizzle";
 import { IntegrityError } from "./error";
-import db from "./kysely";
-import type { MekState } from "./schema";
-
-interface Mek {
-  userId: number;
-  version: number;
-  state: MekState;
-}
-
-interface ClientMekWithDetails extends Mek {
-  clientId: number;
-  encMek: string;
-  encMekSig: string;
-}
+import { mek, mekLog, clientMek } from "./schema";
 
 export const registerInitialMek = async (
   userId: number,
@@ -21,67 +10,58 @@ export const registerInitialMek = async (
   encMek: string,
   encMekSig: string,
 ) => {
-  await db.transaction().execute(async (trx) => {
-    try {
-      await trx
-        .insertInto("master_encryption_key")
-        .values({
-          user_id: userId,
+  await db.transaction(
+    async (tx) => {
+      try {
+        await tx.insert(mek).values({
+          userId,
           version: 1,
           state: "active",
-        })
-        .execute();
-      await trx
-        .insertInto("client_master_encryption_key")
-        .values({
-          user_id: userId,
-          client_id: createdBy,
-          version: 1,
-          encrypted_key: encMek,
-          encrypted_key_signature: encMekSig,
-        })
-        .execute();
-      await trx
-        .insertInto("master_encryption_key_log")
-        .values({
-          user_id: userId,
-          master_encryption_key_version: 1,
+        });
+        await tx.insert(clientMek).values({
+          userId,
+          clientId: createdBy,
+          mekVersion: 1,
+          encMek,
+          encMekSig,
+        });
+        await tx.insert(mekLog).values({
+          userId,
+          mekVersion: 1,
           timestamp: new Date(),
           action: "create",
-          action_by: createdBy,
-        })
-        .execute();
-    } catch (e) {
-      if (e instanceof pg.DatabaseError && e.code === "23505") {
-        throw new IntegrityError("MEK already registered");
+          actionBy: createdBy,
+        });
+      } catch (e) {
+        if (e instanceof SqliteError && e.code === "SQLITE_CONSTRAINT_PRIMARYKEY") {
+          throw new IntegrityError("MEK already registered");
+        }
+        throw e;
       }
-      throw e;
-    }
-  });
+    },
+    { behavior: "exclusive" },
+  );
+};
+
+export const getInitialMek = async (userId: number) => {
+  const meks = await db
+    .select()
+    .from(mek)
+    .where(and(eq(mek.userId, userId), eq(mek.version, 1)))
+    .limit(1);
+  return meks[0] ?? null;
 };
 
 export const getAllValidClientMeks = async (userId: number, clientId: number) => {
-  const clientMeks = await db
-    .selectFrom("client_master_encryption_key")
-    .innerJoin("master_encryption_key", (join) =>
-      join
-        .onRef("client_master_encryption_key.user_id", "=", "master_encryption_key.user_id")
-        .onRef("client_master_encryption_key.version", "=", "master_encryption_key.version"),
-    )
-    .selectAll()
-    .where("client_master_encryption_key.user_id", "=", userId)
-    .where("client_master_encryption_key.client_id", "=", clientId)
-    .where((eb) => eb.or([eb("state", "=", "active"), eb("state", "=", "retired")]))
-    .execute();
-  return clientMeks.map(
-    ({ user_id, client_id, version, state, encrypted_key, encrypted_key_signature }) =>
-      ({
-        userId: user_id,
-        version,
-        state: state as "active" | "retired",
-        clientId: client_id,
-        encMek: encrypted_key,
-        encMekSig: encrypted_key_signature,
-      }) satisfies ClientMekWithDetails,
-  );
+  return await db
+    .select()
+    .from(clientMek)
+    .innerJoin(mek, and(eq(clientMek.userId, mek.userId), eq(clientMek.mekVersion, mek.version)))
+    .where(
+      and(
+        eq(clientMek.userId, userId),
+        eq(clientMek.clientId, clientId),
+        or(eq(mek.state, "active"), eq(mek.state, "retired")),
+      ),
+    );
 };

src/lib/server/db/migrations/1737357000-Initial.ts

@@ -1,224 +0,0 @@
-import { Kysely } from "kysely";
-
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export const up = async (db: Kysely<any>) => {
-  // user.ts
-  await db.schema
-    .createTable("user")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("email", "text", (col) => col.unique().notNull())
-    .addColumn("nickname", "text", (col) => col.notNull())
-    .addColumn("password", "text", (col) => col.notNull())
-    .execute();
-
-  // client.ts
-  await db.schema
-    .createTable("client")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("encryption_public_key", "text", (col) => col.unique().notNull())
-    .addColumn("signature_public_key", "text", (col) => col.unique().notNull())
-    .addUniqueConstraint("client_ak01", ["encryption_public_key", "signature_public_key"])
-    .execute();
-  await db.schema
-    .createTable("user_client")
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("client_id", "integer", (col) => col.references("client.id").notNull())
-    .addColumn("state", "text", (col) => col.notNull().defaultTo("challenging"))
-    .addPrimaryKeyConstraint("user_client_pk", ["user_id", "client_id"])
-    .execute();
-  await db.schema
-    .createTable("user_client_challenge")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("client_id", "integer", (col) => col.references("client.id").notNull())
-    .addColumn("answer", "text", (col) => col.unique().notNull())
-    .addColumn("allowed_ip", "text", (col) => col.notNull())
-    .addColumn("expires_at", "timestamp(3)", (col) => col.notNull())
-    .addForeignKeyConstraint(
-      "user_client_challenge_fk01",
-      ["user_id", "client_id"],
-      "user_client",
-      ["user_id", "client_id"],
-    )
-    .execute();
-
-  // session.ts
-  await db.schema
-    .createTable("session")
-    .addColumn("id", "text", (col) => col.primaryKey())
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("client_id", "integer", (col) => col.references("client.id"))
-    .addColumn("created_at", "timestamp(3)", (col) => col.notNull())
-    .addColumn("last_used_at", "timestamp(3)", (col) => col.notNull())
-    .addColumn("last_used_by_ip", "text")
-    .addColumn("last_used_by_agent", "text")
-    .addUniqueConstraint("session_ak01", ["user_id", "client_id"])
-    .execute();
-  await db.schema
-    .createTable("session_upgrade_challenge")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("session_id", "text", (col) => col.references("session.id").unique().notNull())
-    .addColumn("client_id", "integer", (col) => col.references("client.id").notNull())
-    .addColumn("answer", "text", (col) => col.unique().notNull())
-    .addColumn("allowed_ip", "text", (col) => col.notNull())
-    .addColumn("expires_at", "timestamp(3)", (col) => col.notNull())
-    .execute();
-
-  // mek.ts
-  await db.schema
-    .createTable("master_encryption_key")
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("version", "integer", (col) => col.notNull())
-    .addColumn("state", "text", (col) => col.notNull())
-    .addPrimaryKeyConstraint("master_encryption_key_pk", ["user_id", "version"])
-    .execute();
-  await db.schema
-    .createTable("master_encryption_key_log")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("master_encryption_key_version", "integer", (col) => col.notNull())
-    .addColumn("timestamp", "timestamp(3)", (col) => col.notNull())
-    .addColumn("action", "text", (col) => col.notNull())
-    .addColumn("action_by", "integer", (col) => col.references("client.id"))
-    .addForeignKeyConstraint(
-      "master_encryption_key_log_fk01",
-      ["user_id", "master_encryption_key_version"],
-      "master_encryption_key",
-      ["user_id", "version"],
-    )
-    .execute();
-  await db.schema
-    .createTable("client_master_encryption_key")
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("client_id", "integer", (col) => col.references("client.id").notNull())
-    .addColumn("version", "integer", (col) => col.notNull())
-    .addColumn("encrypted_key", "text", (col) => col.notNull())
-    .addColumn("encrypted_key_signature", "text", (col) => col.notNull())
-    .addPrimaryKeyConstraint("client_master_encryption_key_pk", ["user_id", "client_id", "version"])
-    .addForeignKeyConstraint(
-      "client_master_encryption_key_fk01",
-      ["user_id", "version"],
-      "master_encryption_key",
-      ["user_id", "version"],
-    )
-    .execute();
-
-  // hsk.ts
-  await db.schema
-    .createTable("hmac_secret_key")
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("version", "integer", (col) => col.notNull())
-    .addColumn("state", "text", (col) => col.notNull())
-    .addColumn("master_encryption_key_version", "integer", (col) => col.notNull())
-    .addColumn("encrypted_key", "text", (col) => col.unique().notNull())
-    .addPrimaryKeyConstraint("hmac_secret_key_pk", ["user_id", "version"])
-    .addForeignKeyConstraint(
-      "hmac_secret_key_fk01",
-      ["user_id", "master_encryption_key_version"],
-      "master_encryption_key",
-      ["user_id", "version"],
-    )
-    .execute();
-  await db.schema
-    .createTable("hmac_secret_key_log")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("hmac_secret_key_version", "integer", (col) => col.notNull())
-    .addColumn("timestamp", "timestamp(3)", (col) => col.notNull())
-    .addColumn("action", "text", (col) => col.notNull())
-    .addColumn("action_by", "integer", (col) => col.references("client.id"))
-    .addForeignKeyConstraint(
-      "hmac_secret_key_log_fk01",
-      ["user_id", "hmac_secret_key_version"],
-      "hmac_secret_key",
-      ["user_id", "version"],
-    )
-    .execute();
-
-  // file.ts
-  await db.schema
-    .createTable("directory")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("parent_id", "integer", (col) => col.references("directory.id"))
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("master_encryption_key_version", "integer", (col) => col.notNull())
-    .addColumn("encrypted_data_encryption_key", "text", (col) => col.unique().notNull())
-    .addColumn("data_encryption_key_version", "timestamp(3)", (col) => col.notNull())
-    .addColumn("encrypted_name", "json", (col) => col.notNull())
-    .addForeignKeyConstraint(
-      "directory_fk01",
-      ["user_id", "master_encryption_key_version"],
-      "master_encryption_key",
-      ["user_id", "version"],
-    )
-    .execute();
-  await db.schema
-    .createTable("directory_log")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("directory_id", "integer", (col) =>
-      col.references("directory.id").onDelete("cascade").notNull(),
-    )
-    .addColumn("timestamp", "timestamp(3)", (col) => col.notNull())
-    .addColumn("action", "text", (col) => col.notNull())
-    .addColumn("new_name", "json")
-    .execute();
-  await db.schema
-    .createTable("file")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("parent_id", "integer", (col) => col.references("directory.id"))
-    .addColumn("user_id", "integer", (col) => col.references("user.id").notNull())
-    .addColumn("path", "text", (col) => col.unique().notNull())
-    .addColumn("master_encryption_key_version", "integer", (col) => col.notNull())
-    .addColumn("encrypted_data_encryption_key", "text", (col) => col.unique().notNull())
-    .addColumn("data_encryption_key_version", "timestamp(3)", (col) => col.notNull())
-    .addColumn("hmac_secret_key_version", "integer")
-    .addColumn("content_hmac", "text")
-    .addColumn("content_type", "text", (col) => col.notNull())
-    .addColumn("encrypted_content_iv", "text", (col) => col.notNull())
-    .addColumn("encrypted_content_hash", "text", (col) => col.notNull())
-    .addColumn("encrypted_name", "json", (col) => col.notNull())
-    .addColumn("encrypted_created_at", "json")
-    .addColumn("encrypted_last_modified_at", "json", (col) => col.notNull())
-    .addForeignKeyConstraint(
-      "file_fk01",
-      ["user_id", "master_encryption_key_version"],
-      "master_encryption_key",
-      ["user_id", "version"],
-    )
-    .addForeignKeyConstraint(
-      "file_fk02",
-      ["user_id", "hmac_secret_key_version"],
-      "hmac_secret_key",
-      ["user_id", "version"],
-    )
-    .execute();
-  await db.schema
-    .createTable("file_log")
-    .addColumn("id", "integer", (col) => col.primaryKey().generatedAlwaysAsIdentity())
-    .addColumn("file_id", "integer", (col) =>
-      col.references("file.id").onDelete("cascade").notNull(),
-    )
-    .addColumn("timestamp", "timestamp(3)", (col) => col.notNull())
-    .addColumn("action", "text", (col) => col.notNull())
-    .addColumn("new_name", "json")
-    .execute();
-};
-
-// eslint-disable-next-line @typescript-eslint/no-explicit-any
-export const down = async (db: Kysely<any>) => {
-  await db.schema.dropTable("file_log").execute();
-  await db.schema.dropTable("file").execute();
-  await db.schema.dropTable("directory_log").execute();
-  await db.schema.dropTable("directory").execute();
-  await db.schema.dropTable("hmac_secret_key_log").execute();
-  await db.schema.dropTable("hmac_secret_key").execute();
-  await db.schema.dropTable("client_master_encryption_key").execute();
-  await db.schema.dropTable("master_encryption_key_log").execute();
-  await db.schema.dropTable("master_encryption_key").execute();
-  await db.schema.dropTable("session_upgrade_challenge").execute();
-  await db.schema.dropTable("session").execute();
-  await db.schema.dropTable("user_client_challenge").execute();
-  await db.schema.dropTable("user_client").execute();
-  await db.schema.dropTable("client").execute();
-  await db.schema.dropTable("user").execute();
-};