/api/auth 아래의 Endpoint들을 tRPC로 마이그레이션

Dockerfile

@@ -2,11 +2,7 @@
 FROM node:22-alpine AS base
 WORKDIR /app
 
-RUN apk add --no-cache bash curl && \
-    curl -o /usr/local/bin/wait-for-it https://raw.githubusercontent.com/vishnubob/wait-for-it/master/wait-for-it.sh && \
-    chmod +x /usr/local/bin/wait-for-it
-
-RUN npm install -g pnpm@9
+RUN npm install -g pnpm@10
 COPY pnpm-lock.yaml .
 
 # Build Stage
@@ -29,4 +25,4 @@ COPY --from=build /app/build ./build
 
 EXPOSE 3000
 ENV BODY_SIZE_LIMIT=Infinity
-CMD ["bash", "-c", "wait-for-it ${DATABASE_HOST:-localhost}:${DATABASE_PORT:-5432} -- node ./build/index.js"]
+CMD ["node", "./build/index.js"]

docker-compose.yaml

@@ -3,7 +3,8 @@ services:
     build: .
     restart: unless-stopped
     depends_on:
-      - database
+      database:
+        condition: service_healthy
     user: ${CONTAINER_UID:-0}:${CONTAINER_GID:-0}
     volumes:
       - ./data/library:/app/data/library
@@ -35,3 +36,8 @@ services:
     environment:
       - POSTGRES_USER=arkvault
       - POSTGRES_PASSWORD=${DATABASE_PASSWORD:?}
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER}"]
+      interval: 5s
+      timeout: 5s
+      retries: 5

package.json

@@ -16,53 +16,56 @@
     "db:migrate": "kysely migrate"
   },
   "devDependencies": {
-    "@eslint/compat": "^1.3.1",
-    "@iconify-json/material-symbols": "^1.2.29",
-    "@sveltejs/adapter-node": "^5.2.13",
-    "@sveltejs/kit": "^2.22.5",
-    "@sveltejs/vite-plugin-svelte": "^4.0.4",
+    "@eslint/compat": "^1.4.1",
+    "@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",
+    "@trpc/client": "^11.8.1",
     "@types/file-saver": "^2.0.7",
     "@types/ms": "^0.7.34",
     "@types/node-schedule": "^2.1.8",
-    "@types/pg": "^8.15.4",
-    "autoprefixer": "^10.4.21",
-    "axios": "^1.10.0",
-    "dexie": "^4.0.11",
-    "eslint": "^9.30.1",
-    "eslint-config-prettier": "^10.1.5",
-    "eslint-plugin-svelte": "^3.10.1",
-    "eslint-plugin-tailwindcss": "^3.18.0",
-    "exifreader": "^4.31.1",
+    "@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",
     "file-saver": "^2.0.5",
-    "globals": "^16.3.0",
+    "globals": "^16.5.0",
     "heic2any": "^0.0.4",
-    "kysely-ctl": "^0.13.1",
-    "lru-cache": "^11.1.0",
-    "mime": "^4.0.7",
-    "p-limit": "^6.2.0",
-    "prettier": "^3.6.2",
-    "prettier-plugin-svelte": "^3.4.0",
-    "prettier-plugin-tailwindcss": "^0.6.14",
-    "svelte": "^5.35.6",
-    "svelte-check": "^4.2.2",
-    "tailwindcss": "^3.4.17",
-    "typescript": "^5.8.3",
-    "typescript-eslint": "^8.36.0",
-    "unplugin-icons": "^22.1.0",
-    "vite": "^5.4.19"
+    "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"
   },
   "dependencies": {
-    "@fastify/busboy": "^3.1.1",
-    "argon2": "^0.43.0",
-    "kysely": "^0.28.2",
+    "@fastify/busboy": "^3.2.0",
+    "@trpc/server": "^11.8.1",
+    "argon2": "^0.44.0",
+    "kysely": "^0.28.9",
     "ms": "^2.1.3",
     "node-schedule": "^2.1.1",
     "pg": "^8.16.3",
-    "uuid": "^11.1.0",
-    "zod": "^3.25.76"
+    "superjson": "^2.2.6",
+    "uuid": "^13.0.0",
+    "zod": "^4.2.1"
   },
   "engines": {
     "node": "^22.0.0",
-    "pnpm": "^9.0.0"
+    "pnpm": "^10.0.0"
   }
 }

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

@@ -32,7 +32,7 @@
   };
 
   $effect(() => {
-    if ($info?.dataKey) {
+    if ($info) {
       requestFileThumbnailDownload($info.id, $info.dataKey)
         .then((thumbnailUrl) => {
           thumbnail = thumbnailUrl ?? undefined;

src/lib/modules/file/upload.ts

@@ -13,8 +13,6 @@ import {
 } from "$lib/modules/crypto";
 import { generateThumbnail } from "$lib/modules/thumbnail";
 import type {
-  DuplicateFileScanRequest,
-  DuplicateFileScanResponse,
   FileThumbnailUploadRequest,
   FileUploadRequest,
   FileUploadResponse,
@@ -25,18 +23,18 @@ import {
   type HmacSecret,
   type FileUploadStatus,
 } from "$lib/stores";
+import { useTRPC } from "$trpc/client";
 
 const requestDuplicateFileScan = limitFunction(
   async (file: File, hmacSecret: HmacSecret, onDuplicate: () => Promise<boolean>) => {
+    const trpc = useTRPC();
     const fileBuffer = await file.arrayBuffer();
     const fileSigned = encodeToBase64(await signMessageHmac(fileBuffer, hmacSecret.secret));
 
-    const res = await axios.post("/api/file/scanDuplicates", {
+    const files = await trpc.file.listByHash.query({
       hskVersion: hmacSecret.version,
       contentHmac: fileSigned,
-    } satisfies DuplicateFileScanRequest);
-    const { files }: DuplicateFileScanResponse = res.data;
-
+    });
     if (files.length === 0 || (await onDuplicate())) {
       return { fileBuffer, fileSigned };
     } else {

src/lib/modules/filesystem.ts

@@ -1,5 +1,5 @@
+import { TRPCClientError } from "@trpc/client";
 import { get, writable, type Writable } from "svelte/store";
-import { callGetApi } from "$lib/hooks";
 import {
   getDirectoryInfos as getDirectoryInfosFromIndexedDB,
   getDirectoryInfo as getDirectoryInfoFromIndexedDB,
@@ -18,12 +18,7 @@ import {
   type CategoryId,
 } from "$lib/indexedDB";
 import { unwrapDataKey, decryptString } from "$lib/modules/crypto";
-import type {
-  CategoryInfoResponse,
-  CategoryFileListResponse,
-  DirectoryInfoResponse,
-  FileInfoResponse,
-} from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 
 export type DirectoryInfo =
   | {
@@ -106,20 +101,20 @@ const fetchDirectoryInfoFromServer = async (
   info: Writable<DirectoryInfo | null>,
   masterKey: CryptoKey,
 ) => {
-  const res = await callGetApi(`/api/directory/${id}`);
-  if (res.status === 404) {
+  const trpc = useTRPC();
+  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;
-  } else if (!res.ok) {
+    }
     throw new Error("Failed to fetch directory information");
   }
 
-  const {
-    metadata,
-    subDirectories: subDirectoryIds,
-    files: fileIds,
-  }: DirectoryInfoResponse = await res.json();
+  const { metadata, subDirectories: subDirectoryIds, files: fileIds } = data;
 
   if (id === "root") {
     info.set({ id, subDirectoryIds, fileIds });
@@ -179,16 +174,18 @@ const fetchFileInfoFromServer = async (
   info: Writable<FileInfo | null>,
   masterKey: CryptoKey,
 ) => {
-  const res = await callGetApi(`/api/file/${id}`);
-  if (res.status === 404) {
+  const trpc = useTRPC();
+  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;
-  } else 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 name = await decryptString(metadata.name, metadata.nameIv, dataKey);
@@ -273,16 +270,20 @@ const fetchCategoryInfoFromServer = async (
   info: Writable<CategoryInfo | null>,
   masterKey: CryptoKey,
 ) => {
-  let res = await callGetApi(`/api/category/${id}`);
-  if (res.status === 404) {
+  const trpc = useTRPC();
+  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;
-  } else if (!res.ok) {
+    }
     throw new Error("Failed to fetch category information");
   }
 
-  const { metadata, subCategories }: CategoryInfoResponse = await res.json();
+  const { metadata, subCategories } = data;
 
   if (id === "root") {
     info.set({ id, subCategoryIds: subCategories });
@@ -290,12 +291,13 @@ const fetchCategoryInfoFromServer = async (
     const { dataKey } = await unwrapDataKey(metadata!.dek, masterKey);
     const name = await decryptString(metadata!.name, metadata!.nameIv, dataKey);
 
-    res = await callGetApi(`/api/category/${id}/file/list?recurse=true`);
-    if (!res.ok) {
+    let files;
+    try {
+      files = await trpc.category.files.query({ id, recurse: true });
+    } catch {
       throw new Error("Failed to fetch category files");
     }
 
-    const { files }: CategoryFileListResponse = await res.json();
     const filesMapped = files.map(({ file, isRecursive }) => ({ id: file, isRecursive }));
     let isFileRecursive: boolean | undefined = undefined;
 

src/lib/modules/key.ts

@@ -5,14 +5,14 @@ import type { ClientKeys } from "$lib/stores";
 const serializedClientKeysSchema = z.intersection(
   z.object({
     generator: z.literal("ArkVault"),
-    exportedAt: z.string().datetime(),
+    exportedAt: z.iso.datetime(),
   }),
   z.object({
     version: z.literal(1),
-    encryptKey: z.string().base64().nonempty(),
-    decryptKey: z.string().base64().nonempty(),
-    signKey: z.string().base64().nonempty(),
-    verifyKey: z.string().base64().nonempty(),
+    encryptKey: z.base64().nonempty(),
+    decryptKey: z.base64().nonempty(),
+    signKey: z.base64().nonempty(),
+    verifyKey: z.base64().nonempty(),
   }),
 );
 

src/lib/modules/thumbnail.ts

@@ -67,10 +67,15 @@ const generateVideoThumbnail = (videoUrl: string, time = 0) => {
   return new Promise<Blob>((resolve, reject) => {
     const video = document.createElement("video");
     video.onloadedmetadata = () => {
-      video.currentTime = Math.min(time, video.duration);
-      video.requestVideoFrameCallback(() => {
+      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;
 

src/lib/server/db/client.ts

@@ -98,22 +98,6 @@ export const createUserClient = async (userId: number, clientId: number) => {
   }
 };
 
-export const getAllUserClients = async (userId: number) => {
-  const userClients = await db
-    .selectFrom("user_client")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .execute();
-  return userClients.map(
-    ({ user_id, client_id, state }) =>
-      ({
-        userId: user_id,
-        clientId: client_id,
-        state,
-      }) satisfies UserClient,
-  );
-};
-
 export const getUserClient = async (userId: number, clientId: number) => {
   const userClient = await db
     .selectFrom("user_client")

src/lib/server/db/index.ts

@@ -0,0 +1,10 @@
+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/mek.ts

@@ -60,19 +60,6 @@ export const registerInitialMek = async (
   });
 };
 
-export const getInitialMek = async (userId: number) => {
-  const mek = await db
-    .selectFrom("master_encryption_key")
-    .selectAll()
-    .where("user_id", "=", userId)
-    .where("version", "=", 1)
-    .limit(1)
-    .executeTakeFirst();
-  return mek
-    ? ({ userId: mek.user_id, version: mek.version, state: mek.state } satisfies Mek)
-    : null;
-};
-
 export const getAllValidClientMeks = async (userId: number, clientId: number) => {
   const clientMeks = await db
     .selectFrom("client_master_encryption_key")

src/lib/server/db/user.ts

@@ -27,10 +27,6 @@ export const getUserByEmail = async (email: string) => {
   return user ? (user satisfies User) : null;
 };
 
-export const setUserNickname = async (userId: number, nickname: string) => {
-  await db.updateTable("user").set({ nickname }).where("id", "=", userId).execute();
-};
-
 export const setUserPassword = async (userId: number, password: string) => {
   await db.updateTable("user").set({ password }).where("id", "=", userId).execute();
 };

src/lib/server/middlewares/authenticate.ts

@@ -3,11 +3,6 @@ import env from "$lib/server/loadenv";
 import { authenticate, AuthenticationError } from "$lib/server/modules/auth";
 
 export const authenticateMiddleware: Handle = async ({ event, resolve }) => {
-  const { pathname, search } = event.url;
-  if (pathname === "/api/auth/login") {
-    return await resolve(event);
-  }
-
   try {
     const sessionIdSigned = event.cookies.get("sessionId");
     if (!sessionIdSigned) {
@@ -24,7 +19,8 @@ export const authenticateMiddleware: Handle = async ({ event, resolve }) => {
     });
   } catch (e) {
     if (e instanceof AuthenticationError) {
-      if (pathname === "/auth/login") {
+      const { pathname, search } = event.url;
+      if (pathname === "/auth/login" || pathname.startsWith("/api/trpc")) {
         return await resolve(event);
       } else if (pathname.startsWith("/api")) {
         error(e.status, e.message);

src/lib/server/modules/auth.ts

@@ -11,10 +11,17 @@ interface Session {
   clientId?: number;
 }
 
-interface ClientSession extends Session {
+export interface ClientSession extends Session {
   clientId: number;
 }
 
+export type SessionPermission =
+  | "any"
+  | "notClient"
+  | "anyClient"
+  | "pendingClient"
+  | "activeClient";
+
 export class AuthenticationError extends Error {
   constructor(
     public status: 400 | 401,
@@ -25,6 +32,16 @@ export class AuthenticationError extends Error {
   }
 }
 
+export class AuthorizationError extends Error {
+  constructor(
+    public status: 403 | 500,
+    message: string,
+  ) {
+    super(message);
+    this.name = "AuthorizationError";
+  }
+}
+
 export const startSession = async (userId: number, ip: string, userAgent: string) => {
   const { sessionId, sessionIdSigned } = await issueSessionId(32, env.session.secret);
   await createSession(userId, sessionId, ip, userAgent);
@@ -52,34 +69,12 @@ export const authenticate = async (sessionIdSigned: string, ip: string, userAgen
   }
 };
 
-export async function authorize(locals: App.Locals, requiredPermission: "any"): Promise<Session>;
-
-export async function authorize(
+export const authorizeInternal = async (
   locals: App.Locals,
-  requiredPermission: "notClient",
-): Promise<Session>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "anyClient",
-): Promise<ClientSession>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "pendingClient",
-): Promise<ClientSession>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "activeClient",
-): Promise<ClientSession>;
-
-export async function authorize(
-  locals: App.Locals,
-  requiredPermission: "any" | "notClient" | "anyClient" | "pendingClient" | "activeClient",
-): Promise<Session> {
+  requiredPermission: SessionPermission,
+): Promise<Session> => {
   if (!locals.session) {
-    error(500, "Unauthenticated");
+    throw new AuthorizationError(500, "Unauthenticated");
   }
 
   const { id: sessionId, userId, clientId } = locals.session;
@@ -89,39 +84,63 @@ export async function authorize(
       break;
     case "notClient":
       if (clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     case "anyClient":
       if (!clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     case "pendingClient": {
       if (!clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       const userClient = await getUserClient(userId, clientId);
       if (!userClient) {
-        error(500, "Invalid session id");
+        throw new AuthorizationError(500, "Invalid session id");
       } else if (userClient.state !== "pending") {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     }
     case "activeClient": {
       if (!clientId) {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       const userClient = await getUserClient(userId, clientId);
       if (!userClient) {
-        error(500, "Invalid session id");
+        throw new AuthorizationError(500, "Invalid session id");
       } else if (userClient.state !== "active") {
-        error(403, "Forbidden");
+        throw new AuthorizationError(403, "Forbidden");
       }
       break;
     }
   }
 
   return { sessionId, userId, clientId };
+};
+
+export async function authorize(
+  locals: App.Locals,
+  requiredPermission: "any" | "notClient",
+): Promise<Session>;
+
+export async function authorize(
+  locals: App.Locals,
+  requiredPermission: "anyClient" | "pendingClient" | "activeClient",
+): Promise<ClientSession>;
+
+export async function authorize(
+  locals: App.Locals,
+  requiredPermission: SessionPermission,
+): Promise<Session> {
+  try {
+    return await authorizeInternal(locals, requiredPermission);
+  } catch (e) {
+    if (e instanceof AuthorizationError) {
+      error(e.status, e.message);
+    }
+    throw e;
+  }
 }

src/lib/server/modules/filesystem.ts

@@ -0,0 +1,7 @@
+import { unlink } from "fs/promises";
+
+export const safeUnlink = async (path: string | null | undefined) => {
+  if (path) {
+    await unlink(path).catch(console.error);
+  }
+};

src/lib/server/modules/mek.ts

@@ -1,25 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { getUserClientWithDetails } from "$lib/server/db/client";
-import { getInitialMek } from "$lib/server/db/mek";
-import { verifySignature } from "$lib/server/modules/crypto";
-
-export const isInitialMekNeeded = async (userId: number) => {
-  const initialMek = await getInitialMek(userId);
-  return !initialMek;
-};
-
-export const verifyClientEncMekSig = async (
-  userId: number,
-  clientId: number,
-  version: number,
-  encMek: string,
-  encMekSig: string,
-) => {
-  const userClient = await getUserClientWithDetails(userId, clientId);
-  if (!userClient) {
-    error(500, "Invalid session id");
-  }
-
-  const data = JSON.stringify({ version, key: encMek });
-  return verifySignature(Buffer.from(data), encMekSig, userClient.sigPubKey);
-};

src/lib/server/schemas/auth.ts

@@ -1,32 +0,0 @@
-import { z } from "zod";
-
-export const passwordChangeRequest = z.object({
-  oldPassword: z.string().trim().nonempty(),
-  newPassword: z.string().trim().nonempty(),
-});
-export type PasswordChangeRequest = z.input<typeof passwordChangeRequest>;
-
-export const loginRequest = z.object({
-  email: z.string().email(),
-  password: z.string().trim().nonempty(),
-});
-export type LoginRequest = z.input<typeof loginRequest>;
-
-export const sessionUpgradeRequest = z.object({
-  encPubKey: z.string().base64().nonempty(),
-  sigPubKey: z.string().base64().nonempty(),
-});
-export type SessionUpgradeRequest = z.input<typeof sessionUpgradeRequest>;
-
-export const sessionUpgradeResponse = z.object({
-  id: z.number().int().positive(),
-  challenge: z.string().base64().nonempty(),
-});
-export type SessionUpgradeResponse = z.output<typeof sessionUpgradeResponse>;
-
-export const sessionUpgradeVerifyRequest = z.object({
-  id: z.number().int().positive(),
-  answerSig: z.string().base64().nonempty(),
-  force: z.boolean().default(false),
-});
-export type SessionUpgradeVerifyRequest = z.input<typeof sessionUpgradeVerifyRequest>;

src/lib/server/schemas/category.ts

@@ -1,55 +1,3 @@
 import { z } from "zod";
 
-export const categoryIdSchema = z.union([z.literal("root"), z.number().int().positive()]);
-
-export const categoryInfoResponse = z.object({
-  metadata: z
-    .object({
-      parent: categoryIdSchema,
-      mekVersion: z.number().int().positive(),
-      dek: z.string().base64().nonempty(),
-      dekVersion: z.string().datetime(),
-      name: z.string().base64().nonempty(),
-      nameIv: z.string().base64().nonempty(),
-    })
-    .optional(),
-  subCategories: z.number().int().positive().array(),
-});
-export type CategoryInfoResponse = z.output<typeof categoryInfoResponse>;
-
-export const categoryFileAddRequest = z.object({
-  file: z.number().int().positive(),
-});
-export type CategoryFileAddRequest = z.input<typeof categoryFileAddRequest>;
-
-export const categoryFileListResponse = z.object({
-  files: z.array(
-    z.object({
-      file: z.number().int().positive(),
-      isRecursive: z.boolean(),
-    }),
-  ),
-});
-export type CategoryFileListResponse = z.output<typeof categoryFileListResponse>;
-
-export const categoryFileRemoveRequest = z.object({
-  file: z.number().int().positive(),
-});
-export type CategoryFileRemoveRequest = z.input<typeof categoryFileRemoveRequest>;
-
-export const categoryRenameRequest = z.object({
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type CategoryRenameRequest = z.input<typeof categoryRenameRequest>;
-
-export const categoryCreateRequest = z.object({
-  parent: categoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type CategoryCreateRequest = z.input<typeof categoryCreateRequest>;
+export const categoryIdSchema = z.union([z.literal("root"), z.int().positive()]);

src/lib/server/schemas/client.ts

@@ -1,36 +0,0 @@
-import { z } from "zod";
-
-export const clientListResponse = z.object({
-  clients: z.array(
-    z.object({
-      id: z.number().int().positive(),
-      state: z.enum(["pending", "active"]),
-    }),
-  ),
-});
-export type ClientListResponse = z.output<typeof clientListResponse>;
-
-export const clientRegisterRequest = z.object({
-  encPubKey: z.string().base64().nonempty(),
-  sigPubKey: z.string().base64().nonempty(),
-});
-export type ClientRegisterRequest = z.input<typeof clientRegisterRequest>;
-
-export const clientRegisterResponse = z.object({
-  id: z.number().int().positive(),
-  challenge: z.string().base64().nonempty(),
-});
-export type ClientRegisterResponse = z.output<typeof clientRegisterResponse>;
-
-export const clientRegisterVerifyRequest = z.object({
-  id: z.number().int().positive(),
-  answerSig: z.string().base64().nonempty(),
-});
-export type ClientRegisterVerifyRequest = z.input<typeof clientRegisterVerifyRequest>;
-
-export const clientStatusResponse = z.object({
-  id: z.number().int().positive(),
-  state: z.enum(["pending", "active"]),
-  isInitialMekNeeded: z.boolean(),
-});
-export type ClientStatusResponse = z.output<typeof clientStatusResponse>;

src/lib/server/schemas/directory.ts

@@ -1,41 +1,3 @@
 import { z } from "zod";
 
-export const directoryIdSchema = z.union([z.literal("root"), z.number().int().positive()]);
-
-export const directoryInfoResponse = z.object({
-  metadata: z
-    .object({
-      parent: directoryIdSchema,
-      mekVersion: z.number().int().positive(),
-      dek: z.string().base64().nonempty(),
-      dekVersion: z.string().datetime(),
-      name: z.string().base64().nonempty(),
-      nameIv: z.string().base64().nonempty(),
-    })
-    .optional(),
-  subDirectories: z.number().int().positive().array(),
-  files: z.number().int().positive().array(),
-});
-export type DirectoryInfoResponse = z.output<typeof directoryInfoResponse>;
-
-export const directoryDeleteResponse = z.object({
-  deletedFiles: z.number().int().positive().array(),
-});
-export type DirectoryDeleteResponse = z.output<typeof directoryDeleteResponse>;
-
-export const directoryRenameRequest = z.object({
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type DirectoryRenameRequest = z.input<typeof directoryRenameRequest>;
-
-export const directoryCreateRequest = z.object({
-  parent: directoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type DirectoryCreateRequest = z.input<typeof directoryCreateRequest>;
+export const directoryIdSchema = z.union([z.literal("root"), z.int().positive()]);

src/lib/server/schemas/file.ts

@@ -2,90 +2,35 @@ import mime from "mime";
 import { z } from "zod";
 import { directoryIdSchema } from "./directory";
 
-export const fileInfoResponse = z.object({
-  parent: directoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  contentType: z
-    .string()
-    .trim()
-    .nonempty()
-    .refine((value) => mime.getExtension(value) !== null), // MIME type
-  contentIv: z.string().base64().nonempty(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-  createdAt: z.string().base64().nonempty().optional(),
-  createdAtIv: z.string().base64().nonempty().optional(),
-  lastModifiedAt: z.string().base64().nonempty(),
-  lastModifiedAtIv: z.string().base64().nonempty(),
-  categories: z.number().int().positive().array(),
-});
-export type FileInfoResponse = z.output<typeof fileInfoResponse>;
-
-export const fileRenameRequest = z.object({
-  dekVersion: z.string().datetime(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-});
-export type FileRenameRequest = z.input<typeof fileRenameRequest>;
-
-export const fileThumbnailInfoResponse = z.object({
-  updatedAt: z.string().datetime(),
-  contentIv: z.string().base64().nonempty(),
-});
-export type FileThumbnailInfoResponse = z.output<typeof fileThumbnailInfoResponse>;
-
 export const fileThumbnailUploadRequest = z.object({
-  dekVersion: z.string().datetime(),
-  contentIv: z.string().base64().nonempty(),
+  dekVersion: z.iso.datetime(),
+  contentIv: z.base64().nonempty(),
 });
 export type FileThumbnailUploadRequest = z.input<typeof fileThumbnailUploadRequest>;
 
-export const fileListResponse = z.object({
-  files: z.number().int().positive().array(),
-});
-export type FileListResponse = z.output<typeof fileListResponse>;
-
-export const duplicateFileScanRequest = z.object({
-  hskVersion: z.number().int().positive(),
-  contentHmac: z.string().base64().nonempty(),
-});
-export type DuplicateFileScanRequest = z.input<typeof duplicateFileScanRequest>;
-
-export const duplicateFileScanResponse = z.object({
-  files: z.number().int().positive().array(),
-});
-export type DuplicateFileScanResponse = z.output<typeof duplicateFileScanResponse>;
-
-export const missingThumbnailFileScanResponse = z.object({
-  files: z.number().int().positive().array(),
-});
-export type MissingThumbnailFileScanResponse = z.output<typeof missingThumbnailFileScanResponse>;
-
 export const fileUploadRequest = z.object({
   parent: directoryIdSchema,
-  mekVersion: z.number().int().positive(),
-  dek: z.string().base64().nonempty(),
-  dekVersion: z.string().datetime(),
-  hskVersion: z.number().int().positive(),
-  contentHmac: z.string().base64().nonempty(),
+  mekVersion: z.int().positive(),
+  dek: z.base64().nonempty(),
+  dekVersion: z.iso.datetime(),
+  hskVersion: z.int().positive(),
+  contentHmac: z.base64().nonempty(),
   contentType: z
     .string()
     .trim()
     .nonempty()
     .refine((value) => mime.getExtension(value) !== null), // MIME type
-  contentIv: z.string().base64().nonempty(),
-  name: z.string().base64().nonempty(),
-  nameIv: z.string().base64().nonempty(),
-  createdAt: z.string().base64().nonempty().optional(),
-  createdAtIv: z.string().base64().nonempty().optional(),
-  lastModifiedAt: z.string().base64().nonempty(),
-  lastModifiedAtIv: z.string().base64().nonempty(),
+  contentIv: z.base64().nonempty(),
+  name: z.base64().nonempty(),
+  nameIv: z.base64().nonempty(),
+  createdAt: z.base64().nonempty().optional(),
+  createdAtIv: z.base64().nonempty().optional(),
+  lastModifiedAt: z.base64().nonempty(),
+  lastModifiedAtIv: z.base64().nonempty(),
 });
 export type FileUploadRequest = z.input<typeof fileUploadRequest>;
 
 export const fileUploadResponse = z.object({
-  file: z.number().int().positive(),
+  file: z.int().positive(),
 });
 export type FileUploadResponse = z.output<typeof fileUploadResponse>;

src/lib/server/schemas/hsk.ts

@@ -1,19 +0,0 @@
-import { z } from "zod";
-
-export const hmacSecretListResponse = z.object({
-  hsks: z.array(
-    z.object({
-      version: z.number().int().positive(),
-      state: z.enum(["active"]),
-      mekVersion: z.number().int().positive(),
-      hsk: z.string().base64().nonempty(),
-    }),
-  ),
-});
-export type HmacSecretListResponse = z.output<typeof hmacSecretListResponse>;
-
-export const initialHmacSecretRegisterRequest = z.object({
-  mekVersion: z.number().int().positive(),
-  hsk: z.string().base64().nonempty(),
-});
-export type InitialHmacSecretRegisterRequest = z.input<typeof initialHmacSecretRegisterRequest>;

src/lib/server/schemas/index.ts

@@ -1,8 +1,3 @@
-export * from "./auth";
 export * from "./category";
-export * from "./client";
 export * from "./directory";
 export * from "./file";
-export * from "./hsk";
-export * from "./mek";
-export * from "./user";

src/lib/server/schemas/mek.ts

@@ -1,19 +0,0 @@
-import { z } from "zod";
-
-export const masterKeyListResponse = z.object({
-  meks: z.array(
-    z.object({
-      version: z.number().int().positive(),
-      state: z.enum(["active", "retired"]),
-      mek: z.string().base64().nonempty(),
-      mekSig: z.string().base64().nonempty(),
-    }),
-  ),
-});
-export type MasterKeyListResponse = z.output<typeof masterKeyListResponse>;
-
-export const initialMasterKeyRegisterRequest = z.object({
-  mek: z.string().base64().nonempty(),
-  mekSig: z.string().base64().nonempty(),
-});
-export type InitialMasterKeyRegisterRequest = z.input<typeof initialMasterKeyRegisterRequest>;

src/lib/server/schemas/user.ts

@@ -1,12 +0,0 @@
-import { z } from "zod";
-
-export const userInfoResponse = z.object({
-  email: z.string().email(),
-  nickname: z.string().nonempty(),
-});
-export type UserInfoResponse = z.output<typeof userInfoResponse>;
-
-export const nicknameChangeRequest = z.object({
-  newNickname: z.string().trim().min(2).max(8),
-});
-export type NicknameChangeRequest = z.input<typeof nicknameChangeRequest>;

src/lib/server/services/auth.ts

@@ -1,122 +0,0 @@
-import { error } from "@sveltejs/kit";
-import argon2 from "argon2";
-import { getClient, getClientByPubKeys, getUserClient } from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  upgradeSession,
-  deleteSession,
-  deleteAllOtherSessions,
-  registerSessionUpgradeChallenge,
-  consumeSessionUpgradeChallenge,
-} from "$lib/server/db/session";
-import { getUser, getUserByEmail, setUserPassword } from "$lib/server/db/user";
-import env from "$lib/server/loadenv";
-import { startSession } from "$lib/server/modules/auth";
-import { verifySignature, generateChallenge } from "$lib/server/modules/crypto";
-
-const hashPassword = async (password: string) => {
-  return await argon2.hash(password);
-};
-
-const verifyPassword = async (hash: string, password: string) => {
-  return await argon2.verify(hash, password);
-};
-
-export const changePassword = async (
-  userId: number,
-  sessionId: string,
-  oldPassword: string,
-  newPassword: string,
-) => {
-  if (oldPassword === newPassword) {
-    error(400, "Same passwords");
-  } else if (newPassword.length < 8) {
-    error(400, "Too short password");
-  }
-
-  const user = await getUser(userId);
-  if (!user) {
-    error(500, "Invalid session id");
-  } else if (!(await verifyPassword(user.password, oldPassword))) {
-    error(403, "Invalid password");
-  }
-
-  await setUserPassword(userId, await hashPassword(newPassword));
-  await deleteAllOtherSessions(userId, sessionId);
-};
-
-export const login = async (email: string, password: string, ip: string, userAgent: string) => {
-  const user = await getUserByEmail(email);
-  if (!user || !(await verifyPassword(user.password, password))) {
-    error(401, "Invalid email or password");
-  }
-
-  return { sessionIdSigned: await startSession(user.id, ip, userAgent) };
-};
-
-export const logout = async (sessionId: string) => {
-  await deleteSession(sessionId);
-};
-
-export const createSessionUpgradeChallenge = async (
-  sessionId: string,
-  userId: number,
-  ip: string,
-  encPubKey: string,
-  sigPubKey: string,
-) => {
-  const client = await getClientByPubKeys(encPubKey, sigPubKey);
-  const userClient = client ? await getUserClient(userId, client.id) : undefined;
-  if (!client) {
-    error(401, "Invalid public key(s)");
-  } else if (!userClient || userClient.state === "challenging") {
-    error(403, "Unregistered client");
-  }
-
-  const { answer, challenge } = await generateChallenge(32, encPubKey);
-  const { id } = await registerSessionUpgradeChallenge(
-    sessionId,
-    client.id,
-    answer.toString("base64"),
-    ip,
-    new Date(Date.now() + env.challenge.sessionUpgradeExp),
-  );
-
-  return { id, challenge: challenge.toString("base64") };
-};
-
-export const verifySessionUpgradeChallenge = async (
-  sessionId: string,
-  userId: number,
-  ip: string,
-  challengeId: number,
-  answerSig: string,
-  force: boolean,
-) => {
-  const challenge = await consumeSessionUpgradeChallenge(challengeId, sessionId, ip);
-  if (!challenge) {
-    error(403, "Invalid challenge answer");
-  }
-
-  const client = await getClient(challenge.clientId);
-  if (!client) {
-    error(500, "Invalid challenge answer");
-  } else if (
-    !verifySignature(Buffer.from(challenge.answer, "base64"), answerSig, client.sigPubKey)
-  ) {
-    error(403, "Invalid challenge answer signature");
-  }
-
-  try {
-    await upgradeSession(userId, sessionId, client.id, force);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "Session not found") {
-        error(500, "Invalid challenge answer");
-      } else if (!force && e.message === "Session already exists") {
-        error(409, "Already logged in");
-      }
-    }
-    throw e;
-  }
-};

src/lib/server/services/category.ts

@@ -1,133 +0,0 @@
-import { error } from "@sveltejs/kit";
-import {
-  registerCategory,
-  getAllCategoriesByParent,
-  getCategory,
-  setCategoryEncName,
-  unregisterCategory,
-  type CategoryId,
-  type NewCategory,
-} from "$lib/server/db/category";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  getAllFilesByCategory,
-  getFile,
-  addFileToCategory,
-  removeFileFromCategory,
-} from "$lib/server/db/file";
-import type { Ciphertext } from "$lib/server/db/schema";
-
-export const getCategoryInformation = async (userId: number, categoryId: CategoryId) => {
-  const category = categoryId !== "root" ? await getCategory(userId, categoryId) : undefined;
-  if (category === null) {
-    error(404, "Invalid category id");
-  }
-
-  const categories = await getAllCategoriesByParent(userId, categoryId);
-  return {
-    metadata: category && {
-      parentId: category.parentId ?? ("root" as const),
-      mekVersion: category.mekVersion,
-      encDek: category.encDek,
-      dekVersion: category.dekVersion,
-      encName: category.encName,
-    },
-    categories: categories.map(({ id }) => id),
-  };
-};
-
-export const deleteCategory = async (userId: number, categoryId: number) => {
-  try {
-    await unregisterCategory(userId, categoryId);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Category not found") {
-      error(404, "Invalid category id");
-    }
-    throw e;
-  }
-};
-
-export const addCategoryFile = async (userId: number, categoryId: number, fileId: number) => {
-  const category = await getCategory(userId, categoryId);
-  const file = await getFile(userId, fileId);
-  if (!category) {
-    error(404, "Invalid category id");
-  } else if (!file) {
-    error(404, "Invalid file id");
-  }
-
-  try {
-    await addFileToCategory(fileId, categoryId);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "File already added to category") {
-      error(400, "File already added");
-    }
-    throw e;
-  }
-};
-
-export const getCategoryFiles = async (userId: number, categoryId: number, recurse: boolean) => {
-  const category = await getCategory(userId, categoryId);
-  if (!category) {
-    error(404, "Invalid category id");
-  }
-
-  const files = await getAllFilesByCategory(userId, categoryId, recurse);
-  return { files };
-};
-
-export const removeCategoryFile = async (userId: number, categoryId: number, fileId: number) => {
-  const category = await getCategory(userId, categoryId);
-  const file = await getFile(userId, fileId);
-  if (!category) {
-    error(404, "Invalid category id");
-  } else if (!file) {
-    error(404, "Invalid file id");
-  }
-
-  try {
-    await removeFileFromCategory(fileId, categoryId);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "File not found in category") {
-      error(400, "File not added");
-    }
-    throw e;
-  }
-};
-
-export const renameCategory = async (
-  userId: number,
-  categoryId: number,
-  dekVersion: Date,
-  newEncName: Ciphertext,
-) => {
-  try {
-    await setCategoryEncName(userId, categoryId, dekVersion, newEncName);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "Category not found") {
-        error(404, "Invalid category id");
-      } else if (e.message === "Invalid DEK version") {
-        error(400, "Invalid DEK version");
-      }
-    }
-    throw e;
-  }
-};
-
-export const createCategory = async (params: NewCategory) => {
-  const oneMinuteAgo = new Date(Date.now() - 60 * 1000);
-  const oneMinuteLater = new Date(Date.now() + 60 * 1000);
-  if (params.dekVersion <= oneMinuteAgo || params.dekVersion >= oneMinuteLater) {
-    error(400, "Invalid DEK version");
-  }
-
-  try {
-    await registerCategory(params);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Inactive MEK version") {
-      error(400, "Inactive MEK version");
-    }
-    throw e;
-  }
-};

src/lib/server/services/client.ts

@@ -1,116 +0,0 @@
-import { error } from "@sveltejs/kit";
-import {
-  createClient,
-  getClient,
-  getClientByPubKeys,
-  createUserClient,
-  getAllUserClients,
-  getUserClient,
-  setUserClientStateToPending,
-  registerUserClientChallenge,
-  consumeUserClientChallenge,
-} from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import { verifyPubKey, verifySignature, generateChallenge } from "$lib/server/modules/crypto";
-import { isInitialMekNeeded } from "$lib/server/modules/mek";
-import env from "$lib/server/loadenv";
-
-export const getUserClientList = async (userId: number) => {
-  const userClients = await getAllUserClients(userId);
-  return {
-    userClients: userClients.map(({ clientId, state }) => ({
-      id: clientId,
-      state: state as "pending" | "active",
-    })),
-  };
-};
-
-const expiresAt = () => new Date(Date.now() + env.challenge.userClientExp);
-
-const createUserClientChallenge = async (
-  ip: string,
-  userId: number,
-  clientId: number,
-  encPubKey: string,
-) => {
-  const { answer, challenge } = await generateChallenge(32, encPubKey);
-  const { id } = await registerUserClientChallenge(
-    userId,
-    clientId,
-    answer.toString("base64"),
-    ip,
-    expiresAt(),
-  );
-  return { id, challenge: challenge.toString("base64") };
-};
-
-export const registerUserClient = async (
-  userId: number,
-  ip: string,
-  encPubKey: string,
-  sigPubKey: string,
-) => {
-  const client = await getClientByPubKeys(encPubKey, sigPubKey);
-  if (client) {
-    try {
-      await createUserClient(userId, client.id);
-      return await createUserClientChallenge(ip, userId, client.id, encPubKey);
-    } catch (e) {
-      if (e instanceof IntegrityError && e.message === "User client already exists") {
-        error(409, "Client already registered");
-      }
-      throw e;
-    }
-  } else {
-    if (encPubKey === sigPubKey) {
-      error(400, "Same public keys");
-    } else if (!verifyPubKey(encPubKey) || !verifyPubKey(sigPubKey)) {
-      error(400, "Invalid public key(s)");
-    }
-
-    try {
-      const { id: clientId } = await createClient(encPubKey, sigPubKey, userId);
-      return await createUserClientChallenge(ip, userId, clientId, encPubKey);
-    } catch (e) {
-      if (e instanceof IntegrityError && e.message === "Public key(s) already registered") {
-        error(409, "Public key(s) already used");
-      }
-      throw e;
-    }
-  }
-};
-
-export const verifyUserClient = async (
-  userId: number,
-  ip: string,
-  challengeId: number,
-  answerSig: string,
-) => {
-  const challenge = await consumeUserClientChallenge(challengeId, userId, ip);
-  if (!challenge) {
-    error(403, "Invalid challenge answer");
-  }
-
-  const client = await getClient(challenge.clientId);
-  if (!client) {
-    error(500, "Invalid challenge answer");
-  } else if (
-    !verifySignature(Buffer.from(challenge.answer, "base64"), answerSig, client.sigPubKey)
-  ) {
-    error(403, "Invalid challenge answer signature");
-  }
-
-  await setUserClientStateToPending(userId, client.id);
-};
-
-export const getUserClientStatus = async (userId: number, clientId: number) => {
-  const userClient = await getUserClient(userId, clientId);
-  if (!userClient) {
-    error(500, "Invalid session id");
-  }
-
-  return {
-    state: userClient.state as "pending" | "active",
-    isInitialMekNeeded: await isInitialMekNeeded(userId),
-  };
-};

src/lib/server/services/directory.ts

@@ -1,96 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { unlink } from "fs/promises";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  registerDirectory,
-  getAllDirectoriesByParent,
-  getDirectory,
-  setDirectoryEncName,
-  unregisterDirectory,
-  getAllFilesByParent,
-  type DirectoryId,
-  type NewDirectory,
-} from "$lib/server/db/file";
-import type { Ciphertext } from "$lib/server/db/schema";
-
-export const getDirectoryInformation = async (userId: number, directoryId: DirectoryId) => {
-  const directory = directoryId !== "root" ? await getDirectory(userId, directoryId) : undefined;
-  if (directory === null) {
-    error(404, "Invalid directory id");
-  }
-
-  const directories = await getAllDirectoriesByParent(userId, directoryId);
-  const files = await getAllFilesByParent(userId, directoryId);
-  return {
-    metadata: directory && {
-      parentId: directory.parentId ?? ("root" as const),
-      mekVersion: directory.mekVersion,
-      encDek: directory.encDek,
-      dekVersion: directory.dekVersion,
-      encName: directory.encName,
-    },
-    directories: directories.map(({ id }) => id),
-    files: files.map(({ id }) => id),
-  };
-};
-
-const safeUnlink = async (path: string | null) => {
-  if (path) {
-    await unlink(path).catch(console.error);
-  }
-};
-
-export const deleteDirectory = async (userId: number, directoryId: number) => {
-  try {
-    const files = await unregisterDirectory(userId, directoryId);
-    return {
-      files: files.map(({ id, path, thumbnailPath }) => {
-        safeUnlink(path); // Intended
-        safeUnlink(thumbnailPath); // Intended
-        return id;
-      }),
-    };
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Directory not found") {
-      error(404, "Invalid directory id");
-    }
-    throw e;
-  }
-};
-
-export const renameDirectory = async (
-  userId: number,
-  directoryId: number,
-  dekVersion: Date,
-  newEncName: Ciphertext,
-) => {
-  try {
-    await setDirectoryEncName(userId, directoryId, dekVersion, newEncName);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "Directory not found") {
-        error(404, "Invalid directory id");
-      } else if (e.message === "Invalid DEK version") {
-        error(400, "Invalid DEK version");
-      }
-    }
-    throw e;
-  }
-};
-
-export const createDirectory = async (params: NewDirectory) => {
-  const oneMinuteAgo = new Date(Date.now() - 60 * 1000);
-  const oneMinuteLater = new Date(Date.now() + 60 * 1000);
-  if (params.dekVersion <= oneMinuteAgo || params.dekVersion >= oneMinuteLater) {
-    error(400, "Invalid DEK version");
-  }
-
-  try {
-    await registerDirectory(params);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "Inactive MEK version") {
-      error(400, "Invalid MEK version");
-    }
-    throw e;
-  }
-};

src/lib/server/services/file.ts

@@ -1,72 +1,17 @@
 import { error } from "@sveltejs/kit";
 import { createHash } from "crypto";
 import { createReadStream, createWriteStream } from "fs";
-import { mkdir, stat, unlink } from "fs/promises";
+import { mkdir, stat } from "fs/promises";
 import { dirname } from "path";
 import { Readable } from "stream";
 import { pipeline } from "stream/promises";
 import { v4 as uuidv4 } from "uuid";
-import { IntegrityError } from "$lib/server/db/error";
-import {
-  registerFile,
-  getAllFileIds,
-  getAllFileIdsByContentHmac,
-  getFile,
-  setFileEncName,
-  unregisterFile,
-  getAllFileCategories,
-  type NewFile,
-} from "$lib/server/db/file";
-import {
-  updateFileThumbnail,
-  getFileThumbnail,
-  getMissingFileThumbnails,
-} from "$lib/server/db/media";
-import type { Ciphertext } from "$lib/server/db/schema";
+import { FileRepo, MediaRepo, IntegrityError } from "$lib/server/db";
 import env from "$lib/server/loadenv";
-
-export const getFileInformation = async (userId: number, fileId: number) => {
-  const file = await getFile(userId, fileId);
-  if (!file) {
-    error(404, "Invalid file id");
-  }
-
-  const categories = await getAllFileCategories(fileId);
-  return {
-    parentId: file.parentId ?? ("root" as const),
-    mekVersion: file.mekVersion,
-    encDek: file.encDek,
-    dekVersion: file.dekVersion,
-    contentType: file.contentType,
-    encContentIv: file.encContentIv,
-    encName: file.encName,
-    encCreatedAt: file.encCreatedAt,
-    encLastModifiedAt: file.encLastModifiedAt,
-    categories: categories.map(({ id }) => id),
-  };
-};
-
-const safeUnlink = async (path: string | null) => {
-  if (path) {
-    await unlink(path).catch(console.error);
-  }
-};
-
-export const deleteFile = async (userId: number, fileId: number) => {
-  try {
-    const { path, thumbnailPath } = await unregisterFile(userId, fileId);
-    safeUnlink(path); // Intended
-    safeUnlink(thumbnailPath); // Intended
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "File not found") {
-      error(404, "Invalid file id");
-    }
-    throw e;
-  }
-};
+import { safeUnlink } from "$lib/server/modules/filesystem";
 
 export const getFileStream = async (userId: number, fileId: number) => {
-  const file = await getFile(userId, fileId);
+  const file = await FileRepo.getFile(userId, fileId);
   if (!file) {
     error(404, "Invalid file id");
   }
@@ -78,37 +23,8 @@ export const getFileStream = async (userId: number, fileId: number) => {
   };
 };
 
-export const renameFile = async (
-  userId: number,
-  fileId: number,
-  dekVersion: Date,
-  newEncName: Ciphertext,
-) => {
-  try {
-    await setFileEncName(userId, fileId, dekVersion, newEncName);
-  } catch (e) {
-    if (e instanceof IntegrityError) {
-      if (e.message === "File not found") {
-        error(404, "Invalid file id");
-      } else if (e.message === "Invalid DEK version") {
-        error(400, "Invalid DEK version");
-      }
-    }
-    throw e;
-  }
-};
-
-export const getFileThumbnailInformation = async (userId: number, fileId: number) => {
-  const thumbnail = await getFileThumbnail(userId, fileId);
-  if (!thumbnail) {
-    error(404, "File or its thumbnail not found");
-  }
-
-  return { updatedAt: thumbnail.updatedAt, encContentIv: thumbnail.encContentIv };
-};
-
 export const getFileThumbnailStream = async (userId: number, fileId: number) => {
-  const thumbnail = await getFileThumbnail(userId, fileId);
+  const thumbnail = await MediaRepo.getFileThumbnail(userId, fileId);
   if (!thumbnail) {
     error(404, "File or its thumbnail not found");
   }
@@ -133,7 +49,13 @@ export const uploadFileThumbnail = async (
   try {
     await pipeline(encContentStream, createWriteStream(path, { flags: "wx", mode: 0o600 }));
 
-    const oldPath = await updateFileThumbnail(userId, fileId, dekVersion, path, encContentIv);
+    const oldPath = await MediaRepo.updateFileThumbnail(
+      userId,
+      fileId,
+      dekVersion,
+      path,
+      encContentIv,
+    );
     safeUnlink(oldPath); // Intended
   } catch (e) {
     await safeUnlink(path);
@@ -149,27 +71,8 @@ export const uploadFileThumbnail = async (
   }
 };
 
-export const getFileList = async (userId: number) => {
-  const fileIds = await getAllFileIds(userId);
-  return { files: fileIds };
-};
-
-export const scanDuplicateFiles = async (
-  userId: number,
-  hskVersion: number,
-  contentHmac: string,
-) => {
-  const fileIds = await getAllFileIdsByContentHmac(userId, hskVersion, contentHmac);
-  return { files: fileIds };
-};
-
-export const scanMissingFileThumbnails = async (userId: number) => {
-  const fileIds = await getMissingFileThumbnails(userId);
-  return { files: fileIds };
-};
-
 export const uploadFile = async (
-  params: Omit<NewFile, "path" | "encContentHash">,
+  params: Omit<FileRepo.NewFile, "path" | "encContentHash">,
   encContentStream: Readable,
   encContentHash: Promise<string>,
 ) => {
@@ -201,7 +104,7 @@ export const uploadFile = async (
       throw new Error("Invalid checksum");
     }
 
-    const { id: fileId } = await registerFile({
+    const { id: fileId } = await FileRepo.registerFile({
       ...params,
       path,
       encContentHash: hash,

src/lib/server/services/hsk.ts

@@ -1,31 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { IntegrityError } from "$lib/server/db/error";
-import { registerInitialHsk, getAllValidHsks } from "$lib/server/db/hsk";
-
-export const getHskList = async (userId: number) => {
-  const hsks = await getAllValidHsks(userId);
-  return {
-    encHsks: hsks.map(({ version, state, mekVersion, encHsk }) => ({
-      version,
-      state,
-      mekVersion,
-      encHsk,
-    })),
-  };
-};
-
-export const registerInitialActiveHsk = async (
-  userId: number,
-  createdBy: number,
-  mekVersion: number,
-  encHsk: string,
-) => {
-  try {
-    await registerInitialHsk(userId, createdBy, mekVersion, encHsk);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "HSK already registered") {
-      error(409, "Initial HSK already registered");
-    }
-    throw e;
-  }
-};

src/lib/server/services/mek.ts

@@ -1,38 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { setUserClientStateToActive } from "$lib/server/db/client";
-import { IntegrityError } from "$lib/server/db/error";
-import { registerInitialMek, getAllValidClientMeks } from "$lib/server/db/mek";
-import { verifyClientEncMekSig } from "$lib/server/modules/mek";
-
-export const getClientMekList = async (userId: number, clientId: number) => {
-  const clientMeks = await getAllValidClientMeks(userId, clientId);
-  return {
-    encMeks: clientMeks.map(({ version, state, encMek, encMekSig }) => ({
-      version,
-      state,
-      encMek,
-      encMekSig,
-    })),
-  };
-};
-
-export const registerInitialActiveMek = async (
-  userId: number,
-  createdBy: number,
-  encMek: string,
-  encMekSig: string,
-) => {
-  if (!(await verifyClientEncMekSig(userId, createdBy, 1, encMek, encMekSig))) {
-    error(400, "Invalid signature");
-  }
-
-  try {
-    await registerInitialMek(userId, createdBy, encMek, encMekSig);
-    await setUserClientStateToActive(userId, createdBy);
-  } catch (e) {
-    if (e instanceof IntegrityError && e.message === "MEK already registered") {
-      error(409, "Initial MEK already registered");
-    }
-    throw e;
-  }
-};

src/lib/server/services/user.ts

@@ -1,15 +0,0 @@
-import { error } from "@sveltejs/kit";
-import { getUser, setUserNickname } from "$lib/server/db/user";
-
-export const getUserInformation = async (userId: number) => {
-  const user = await getUser(userId);
-  if (!user) {
-    error(500, "Invalid session id");
-  }
-
-  return { email: user.email, nickname: user.nickname };
-};
-
-export const changeNickname = async (userId: number, nickname: string) => {
-  await setUserNickname(userId, nickname);
-};

src/lib/services/auth.ts

@@ -1,10 +1,6 @@
-import { callPostApi } from "$lib/hooks";
+import { TRPCClientError } from "@trpc/client";
 import { encodeToBase64, decryptChallenge, signMessageRSA } from "$lib/modules/crypto";
-import type {
-  SessionUpgradeRequest,
-  SessionUpgradeResponse,
-  SessionUpgradeVerifyRequest,
-} from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 
 export const requestSessionUpgrade = async (
   encryptKeyBase64: string,
@@ -13,27 +9,45 @@ export const requestSessionUpgrade = async (
   signKey: CryptoKey,
   force = false,
 ) => {
-  let res = await callPostApi<SessionUpgradeRequest>("/api/auth/upgradeSession", {
+  const trpc = useTRPC();
+  let id, challenge;
+  try {
+    ({ id, challenge } = await trpc.auth.upgradeSession.mutate({
       encPubKey: encryptKeyBase64,
       sigPubKey: verifyKeyBase64,
-  });
-  if (res.status === 403) return [false, "Unregistered client"] as const;
-  else if (!res.ok) return [false] as const;
-
-  const { id, challenge }: SessionUpgradeResponse = await res.json();
+    }));
+  } catch (e) {
+    if (e instanceof TRPCClientError && e.data?.code === "FORBIDDEN") {
+      return [false, "Unregistered client"] as const;
+    }
+    return [false] as const;
+  }
   const answer = await decryptChallenge(challenge, decryptKey);
   const answerSig = await signMessageRSA(answer, signKey);
 
-  res = await callPostApi<SessionUpgradeVerifyRequest>("/api/auth/upgradeSession/verify", {
+  try {
+    await trpc.auth.verifySessionUpgrade.mutate({
       id,
       answerSig: encodeToBase64(answerSig),
       force,
     });
-  if (res.status === 409) return [false, "Already logged in"] as const;
-  else return [res.ok] as const;
+  } catch (e) {
+    if (e instanceof TRPCClientError && e.data?.code === "CONFLICT") {
+      return [false, "Already logged in"] as const;
+    }
+    return [false] as const;
+  }
+
+  return [true] as const;
 };
 
 export const requestLogout = async () => {
-  const res = await callPostApi("/api/auth/logout");
-  return res.ok;
+  const trpc = useTRPC();
+  try {
+    await trpc.auth.logout.mutate();
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/lib/services/category.ts

@@ -1,31 +1,40 @@
-import { callPostApi } from "$lib/hooks";
 import { generateDataKey, wrapDataKey, encryptString } from "$lib/modules/crypto";
-import type { CategoryCreateRequest, CategoryFileRemoveRequest } from "$lib/server/schemas";
 import type { MasterKey } from "$lib/stores";
+import { useTRPC } from "$trpc/client";
 
 export const requestCategoryCreation = async (
   name: string,
   parentId: "root" | number,
   masterKey: MasterKey,
 ) => {
+  const trpc = useTRPC();
   const { dataKey, dataKeyVersion } = await generateDataKey();
   const nameEncrypted = await encryptString(name, dataKey);
 
-  const res = await callPostApi<CategoryCreateRequest>("/api/category/create", {
+  try {
+    await trpc.category.create.mutate({
       parent: parentId,
       mekVersion: masterKey.version,
       dek: await wrapDataKey(dataKey, masterKey.key),
-    dekVersion: dataKeyVersion.toISOString(),
+      dekVersion: dataKeyVersion,
       name: nameEncrypted.ciphertext,
       nameIv: nameEncrypted.iv,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestFileRemovalFromCategory = async (fileId: number, categoryId: number) => {
-  const res = await callPostApi<CategoryFileRemoveRequest>(
-    `/api/category/${categoryId}/file/remove`,
-    { file: fileId },
-  );
-  return res.ok;
+  const trpc = useTRPC();
+
+  try {
+    await trpc.category.removeFile.mutate({ id: categoryId, file: fileId });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/lib/services/file.ts

@@ -11,11 +11,8 @@ import {
   downloadFile,
 } from "$lib/modules/file";
 import { getThumbnailUrl } from "$lib/modules/thumbnail";
-import type {
-  FileThumbnailInfoResponse,
-  FileThumbnailUploadRequest,
-  FileListResponse,
-} from "$lib/server/schemas";
+import type { FileThumbnailUploadRequest } from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 
 export const requestFileDownload = async (
   fileId: number,
@@ -48,16 +45,21 @@ export const requestFileThumbnailUpload = async (
   return await fetch(`/api/file/${fileId}/thumbnail/upload`, { method: "POST", body: form });
 };
 
-export const requestFileThumbnailDownload = async (fileId: number, dataKey: CryptoKey) => {
+export const requestFileThumbnailDownload = async (fileId: number, dataKey?: CryptoKey) => {
   const cache = await getFileThumbnailCache(fileId);
-  if (cache) return cache;
+  if (cache || !dataKey) return cache;
 
-  let res = await callGetApi(`/api/file/${fileId}/thumbnail`);
-  if (!res.ok) return null;
+  const trpc = useTRPC();
+  let thumbnailInfo;
+  try {
+    thumbnailInfo = await trpc.file.thumbnail.query({ id: fileId });
+  } catch {
+    // TODO: Error Handling
+    return null;
+  }
+  const { contentIv: thumbnailEncryptedIv } = thumbnailInfo;
 
-  const { contentIv: thumbnailEncryptedIv }: FileThumbnailInfoResponse = await res.json();
-
-  res = await callGetApi(`/api/file/${fileId}/thumbnail/download`);
+  const res = await callGetApi(`/api/file/${fileId}/thumbnail/download`);
   if (!res.ok) return null;
 
   const thumbnailEncrypted = await res.arrayBuffer();
@@ -68,10 +70,15 @@ export const requestFileThumbnailDownload = async (fileId: number, dataKey: Cryp
 };
 
 export const requestDeletedFilesCleanup = async () => {
-  const res = await callGetApi("/api/file/list");
-  if (!res.ok) return;
+  const trpc = useTRPC();
+  let liveFiles;
+  try {
+    liveFiles = await trpc.file.list.query();
+  } catch {
+    // TODO: Error Handling
+    return;
+  }
 
-  const { files: liveFiles }: FileListResponse = await res.json();
   const liveFilesSet = new Set(liveFiles);
   const maybeCachedFiles = await getAllFileInfos();
 

src/lib/services/key.ts

@@ -1,4 +1,4 @@
-import { callGetApi, callPostApi } from "$lib/hooks";
+import { TRPCClientError } from "@trpc/client";
 import { storeMasterKeys } from "$lib/indexedDB";
 import {
   encodeToBase64,
@@ -9,16 +9,9 @@ import {
   signMasterKeyWrapped,
   verifyMasterKeyWrapped,
 } from "$lib/modules/crypto";
-import type {
-  ClientRegisterRequest,
-  ClientRegisterResponse,
-  ClientRegisterVerifyRequest,
-  InitialHmacSecretRegisterRequest,
-  MasterKeyListResponse,
-  InitialMasterKeyRegisterRequest,
-} from "$lib/server/schemas";
 import { requestSessionUpgrade } from "$lib/services/auth";
 import { masterKeyStore, type ClientKeys } from "$lib/stores";
+import { useTRPC } from "$trpc/client";
 
 export const requestClientRegistration = async (
   encryptKeyBase64: string,
@@ -26,21 +19,24 @@ export const requestClientRegistration = async (
   verifyKeyBase64: string,
   signKey: CryptoKey,
 ) => {
-  let res = await callPostApi<ClientRegisterRequest>("/api/client/register", {
+  const trpc = useTRPC();
+
+  try {
+    const { id, challenge } = await trpc.client.register.mutate({
       encPubKey: encryptKeyBase64,
       sigPubKey: verifyKeyBase64,
     });
-  if (!res.ok) return false;
-
-  const { id, challenge }: ClientRegisterResponse = await res.json();
     const answer = await decryptChallenge(challenge, decryptKey);
     const answerSig = await signMessageRSA(answer, signKey);
-
-  res = await callPostApi<ClientRegisterVerifyRequest>("/api/client/register/verify", {
+    await trpc.client.verify.mutate({
       id,
       answerSig: encodeToBase64(answerSig),
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestClientRegistrationAndSessionUpgrade = async (
@@ -73,10 +69,16 @@ export const requestClientRegistrationAndSessionUpgrade = async (
 };
 
 export const requestMasterKeyDownload = async (decryptKey: CryptoKey, verifyKey: CryptoKey) => {
-  const res = await callGetApi("/api/mek/list");
-  if (!res.ok) return false;
+  const trpc = useTRPC();
+
+  let masterKeysWrapped;
+  try {
+    masterKeysWrapped = await trpc.mek.list.query();
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 
-  const { meks: masterKeysWrapped }: MasterKeyListResponse = await res.json();
   const masterKeys = await Promise.all(
     masterKeysWrapped.map(
       async ({ version, state, mek: masterKeyWrapped, mekSig: masterKeyWrappedSig }) => {
@@ -108,17 +110,32 @@ export const requestInitialMasterKeyAndHmacSecretRegistration = async (
   hmacSecretWrapped: string,
   signKey: CryptoKey,
 ) => {
-  let res = await callPostApi<InitialMasterKeyRegisterRequest>("/api/mek/register/initial", {
+  const trpc = useTRPC();
+
+  try {
+    await trpc.mek.registerInitial.mutate({
       mek: masterKeyWrapped,
       mekSig: await signMasterKeyWrapped(masterKeyWrapped, 1, signKey),
     });
-  if (!res.ok) {
-    return res.status === 403 || res.status === 409;
+  } catch (e) {
+    if (
+      e instanceof TRPCClientError &&
+      (e.data?.code === "FORBIDDEN" || e.data?.code === "CONFLICT")
+    ) {
+      return true;
+    }
+    // TODO: Error Handling
+    return false;
   }
 
-  res = await callPostApi<InitialHmacSecretRegisterRequest>("/api/hsk/register/initial", {
+  try {
+    await trpc.hsk.registerInitial.mutate({
       mekVersion: 1,
       hsk: hmacSecretWrapped,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/auth/changePassword/service.ts

@@ -1,10 +1,13 @@
-import { callPostApi } from "$lib/hooks";
-import type { PasswordChangeRequest } from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 
 export const requestPasswordChange = async (oldPassword: string, newPassword: string) => {
-  const res = await callPostApi<PasswordChangeRequest>("/api/auth/changePassword", {
-    oldPassword,
-    newPassword,
-  });
-  return res.ok;
+  const trpc = useTRPC();
+
+  try {
+    await trpc.auth.changePassword.mutate({ oldPassword, newPassword });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/auth/login/service.ts

@@ -1,5 +1,4 @@
-import { callPostApi } from "$lib/hooks";
-import type { LoginRequest } from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 
 export { requestLogout } from "$lib/services/auth";
 export { requestDeletedFilesCleanup } from "$lib/services/file";
@@ -9,6 +8,13 @@ export {
 } from "$lib/services/key";
 
 export const requestLogin = async (email: string, password: string) => {
-  const res = await callPostApi<LoginRequest>("/api/auth/login", { email, password });
-  return res.ok;
+  const trpc = useTRPC();
+
+  try {
+    await trpc.auth.login.mutate({ email, password });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/file/[id]/service.ts

@@ -1,8 +1,7 @@
-import { callPostApi } from "$lib/hooks";
 import { encryptData } from "$lib/modules/crypto";
 import { storeFileThumbnailCache } from "$lib/modules/file";
-import type { CategoryFileAddRequest } from "$lib/server/schemas";
 import { requestFileThumbnailUpload } from "$lib/services/file";
+import { useTRPC } from "$trpc/client";
 
 export { requestCategoryCreation, requestFileRemovalFromCategory } from "$lib/services/category";
 export { requestFileDownload } from "$lib/services/file";
@@ -23,8 +22,13 @@ export const requestThumbnailUpload = async (
 };
 
 export const requestFileAdditionToCategory = async (fileId: number, categoryId: number) => {
-  const res = await callPostApi<CategoryFileAddRequest>(`/api/category/${categoryId}/file/add`, {
-    file: fileId,
-  });
-  return res.ok;
+  const trpc = useTRPC();
+
+  try {
+    await trpc.category.addFile.mutate({ id: categoryId, file: fileId });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(fullscreen)/settings/thumbnail/+page.ts

@@ -1,14 +1,14 @@
 import { error } from "@sveltejs/kit";
-import { callPostApi } from "$lib/hooks";
-import type { MissingThumbnailFileScanResponse } from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 import type { PageLoad } from "./$types";
 
 export const load: PageLoad = async ({ fetch }) => {
-  const res = await callPostApi("/api/file/scanMissingThumbnails", undefined, fetch);
-  if (!res.ok) {
+  const trpc = useTRPC(fetch);
+
+  try {
+    const files = await trpc.file.listWithoutThumbnail.query();
+    return { files };
+  } catch {
     error(500, "Internal server error");
   }
-
-  const { files }: MissingThumbnailFileScanResponse = await res.json();
-  return { files };
 };

src/routes/(main)/category/[[id]]/service.svelte.ts

@@ -1,8 +1,7 @@
 import { getContext, setContext } from "svelte";
-import { callPostApi } from "$lib/hooks";
 import { encryptString } from "$lib/modules/crypto";
 import type { SelectedCategory } from "$lib/components/molecules";
-import type { CategoryRenameRequest } from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 
 export { requestCategoryCreation, requestFileRemovalFromCategory } from "$lib/services/category";
 
@@ -18,17 +17,31 @@ export const useContext = () => {
 };
 
 export const requestCategoryRename = async (category: SelectedCategory, newName: string) => {
+  const trpc = useTRPC();
   const newNameEncrypted = await encryptString(newName, category.dataKey);
 
-  const res = await callPostApi<CategoryRenameRequest>(`/api/category/${category.id}/rename`, {
-    dekVersion: category.dataKeyVersion.toISOString(),
+  try {
+    await trpc.category.rename.mutate({
+      id: category.id,
+      dekVersion: category.dataKeyVersion,
       name: newNameEncrypted.ciphertext,
       nameIv: newNameEncrypted.iv,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestCategoryDeletion = async (category: SelectedCategory) => {
-  const res = await callPostApi(`/api/category/${category.id}/delete`);
-  return res.ok;
+  const trpc = useTRPC();
+
+  try {
+    await trpc.category.delete.mutate({ id: category.id });
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };

src/routes/(main)/directory/[[id]]/DirectoryEntries/File.svelte

@@ -34,7 +34,7 @@
   };
 
   $effect(() => {
-    if ($info?.dataKey) {
+    if ($info) {
       requestFileThumbnailDownload($info.id, $info.dataKey)
         .then((thumbnailUrl) => {
           thumbnail = thumbnailUrl ?? undefined;

src/routes/(main)/directory/[[id]]/service.svelte.ts

@@ -1,5 +1,4 @@
 import { getContext, setContext } from "svelte";
-import { callGetApi, callPostApi } from "$lib/hooks";
 import { storeHmacSecrets } from "$lib/indexedDB";
 import { generateDataKey, wrapDataKey, unwrapHmacSecret, encryptString } from "$lib/modules/crypto";
 import {
@@ -9,14 +8,8 @@ import {
   deleteFileThumbnailCache,
   uploadFile,
 } from "$lib/modules/file";
-import type {
-  DirectoryRenameRequest,
-  DirectoryCreateRequest,
-  FileRenameRequest,
-  HmacSecretListResponse,
-  DirectoryDeleteResponse,
-} from "$lib/server/schemas";
 import { hmacSecretStore, type MasterKey, type HmacSecret } from "$lib/stores";
+import { useTRPC } from "$trpc/client";
 
 export interface SelectedEntry {
   type: "directory" | "file";
@@ -40,10 +33,16 @@ export const useContext = () => {
 export const requestHmacSecretDownload = async (masterKey: CryptoKey) => {
   // TODO: MEK rotation
 
-  const res = await callGetApi("/api/hsk/list");
-  if (!res.ok) return false;
+  const trpc = useTRPC();
+
+  let hmacSecretsWrapped;
+  try {
+    hmacSecretsWrapped = await trpc.hsk.list.query();
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 
-  const { hsks: hmacSecretsWrapped }: HmacSecretListResponse = await res.json();
   const hmacSecrets = await Promise.all(
     hmacSecretsWrapped.map(async ({ version, state, hsk: hmacSecretWrapped }) => {
       const { hmacSecret } = await unwrapHmacSecret(hmacSecretWrapped, masterKey);
@@ -62,18 +61,24 @@ export const requestDirectoryCreation = async (
   parentId: "root" | number,
   masterKey: MasterKey,
 ) => {
+  const trpc = useTRPC();
   const { dataKey, dataKeyVersion } = await generateDataKey();
   const nameEncrypted = await encryptString(name, dataKey);
 
-  const res = await callPostApi<DirectoryCreateRequest>("/api/directory/create", {
+  try {
+    await trpc.directory.create.mutate({
       parent: parentId,
       mekVersion: masterKey.version,
       dek: await wrapDataKey(dataKey, masterKey.key),
-    dekVersion: dataKeyVersion.toISOString(),
+      dekVersion: dataKeyVersion,
       name: nameEncrypted.ciphertext,
       nameIv: nameEncrypted.iv,
     });
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestFileUpload = async (
@@ -95,37 +100,51 @@ export const requestFileUpload = async (
 };
 
 export const requestEntryRename = async (entry: SelectedEntry, newName: string) => {
+  const trpc = useTRPC();
   const newNameEncrypted = await encryptString(newName, entry.dataKey);
 
-  let res;
+  try {
     if (entry.type === "directory") {
-    res = await callPostApi<DirectoryRenameRequest>(`/api/directory/${entry.id}/rename`, {
-      dekVersion: entry.dataKeyVersion.toISOString(),
+      await trpc.directory.rename.mutate({
+        id: entry.id,
+        dekVersion: entry.dataKeyVersion,
         name: newNameEncrypted.ciphertext,
         nameIv: newNameEncrypted.iv,
       });
     } else {
-    res = await callPostApi<FileRenameRequest>(`/api/file/${entry.id}/rename`, {
-      dekVersion: entry.dataKeyVersion.toISOString(),
+      await trpc.file.rename.mutate({
+        id: entry.id,
+        dekVersion: entry.dataKeyVersion,
         name: newNameEncrypted.ciphertext,
         nameIv: newNameEncrypted.iv,
       });
     }
-  return res.ok;
+    return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
+  }
 };
 
 export const requestEntryDeletion = async (entry: SelectedEntry) => {
-  const res = await callPostApi(`/api/${entry.type}/${entry.id}/delete`);
-  if (!res.ok) return false;
+  const trpc = useTRPC();
 
+  try {
     if (entry.type === "directory") {
-    const { deletedFiles }: DirectoryDeleteResponse = await res.json();
+      const { deletedFiles } = await trpc.directory.delete.mutate({ id: entry.id });
       await Promise.all(
-      deletedFiles.flatMap((fileId) => [deleteFileCache(fileId), deleteFileThumbnailCache(fileId)]),
+        deletedFiles.flatMap((fileId) => [
+          deleteFileCache(fileId),
+          deleteFileThumbnailCache(fileId),
+        ]),
       );
-    return true;
     } else {
+      await trpc.file.delete.mutate({ id: entry.id });
       await Promise.all([deleteFileCache(entry.id), deleteFileThumbnailCache(entry.id)]);
+    }
     return true;
+  } catch {
+    // TODO: Error Handling
+    return false;
   }
 };

src/routes/(main)/menu/+page.ts

@@ -1,14 +1,14 @@
 import { error } from "@sveltejs/kit";
-import { callGetApi } from "$lib/hooks";
-import type { UserInfoResponse } from "$lib/server/schemas";
+import { useTRPC } from "$trpc/client";
 import type { PageLoad } from "./$types";
 
 export const load: PageLoad = async ({ fetch }) => {
-  const res = await callGetApi("/api/user", fetch);
-  if (!res.ok) {
+  const trpc = useTRPC(fetch);
+
+  try {
+    const { nickname } = await trpc.user.get.query();
+    return { nickname };
+  } catch {
     error(500, "Internal server error");
   }
-
-  const { nickname }: UserInfoResponse = await res.json();
-  return { nickname };
 };

src/routes/api/auth/changePassword/+server.ts

@@ -1,16 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { passwordChangeRequest } from "$lib/server/schemas";
-import { changePassword } from "$lib/server/services/auth";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { sessionId, userId } = await authorize(locals, "any");
-
-  const zodRes = passwordChangeRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { oldPassword, newPassword } = zodRes.data;
-
-  await changePassword(userId, sessionId, oldPassword, newPassword);
-  return text("Password changed", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/auth/login/+server.ts

@@ -1,21 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import env from "$lib/server/loadenv";
-import { loginRequest } from "$lib/server/schemas";
-import { login } from "$lib/server/services/auth";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request, cookies }) => {
-  const zodRes = loginRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { email, password } = zodRes.data;
-
-  const { sessionIdSigned } = await login(email, password, locals.ip, locals.userAgent);
-  cookies.set("sessionId", sessionIdSigned, {
-    path: "/",
-    maxAge: env.session.exp / 1000,
-    secure: true,
-    sameSite: "strict",
-  });
-
-  return text("Logged in", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/auth/logout/+server.ts

@@ -1,13 +0,0 @@
-import { text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { logout } from "$lib/server/services/auth";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, cookies }) => {
-  const { sessionId } = await authorize(locals, "any");
-
-  await logout(sessionId);
-  cookies.delete("sessionId", { path: "/" });
-
-  return text("Logged out", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/auth/upgradeSession/+server.ts

@@ -1,26 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import {
-  sessionUpgradeRequest,
-  sessionUpgradeResponse,
-  type SessionUpgradeResponse,
-} from "$lib/server/schemas";
-import { createSessionUpgradeChallenge } from "$lib/server/services/auth";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { sessionId, userId } = await authorize(locals, "notClient");
-
-  const zodRes = sessionUpgradeRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { encPubKey, sigPubKey } = zodRes.data;
-
-  const { id, challenge } = await createSessionUpgradeChallenge(
-    sessionId,
-    userId,
-    locals.ip,
-    encPubKey,
-    sigPubKey,
-  );
-  return json(sessionUpgradeResponse.parse({ id, challenge } satisfies SessionUpgradeResponse));
-};

src/routes/api/auth/upgradeSession/verify/+server.ts

@@ -1,16 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { sessionUpgradeVerifyRequest } from "$lib/server/schemas";
-import { verifySessionUpgradeChallenge } from "$lib/server/services/auth";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { sessionId, userId } = await authorize(locals, "notClient");
-
-  const zodRes = sessionUpgradeVerifyRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { id, answerSig, force } = zodRes.data;
-
-  await verifySessionUpgradeChallenge(sessionId, userId, locals.ip, id, answerSig, force);
-  return text("Session upgraded", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/category/[id]/+server.ts

@@ -1,33 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { categoryInfoResponse, type CategoryInfoResponse } from "$lib/server/schemas";
-import { getCategoryInformation } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.union([z.enum(["root"]), z.coerce.number().int().positive()]),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  const { metadata, categories } = await getCategoryInformation(userId, id);
-  return json(
-    categoryInfoResponse.parse({
-      metadata: metadata && {
-        parent: metadata.parentId,
-        mekVersion: metadata.mekVersion,
-        dek: metadata.encDek,
-        dekVersion: metadata.dekVersion.toISOString(),
-        name: metadata.encName.ciphertext,
-        nameIv: metadata.encName.iv,
-      },
-      subCategories: categories,
-    } satisfies CategoryInfoResponse),
-  );
-};

src/routes/api/category/[id]/delete/+server.ts

@@ -1,20 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { deleteCategory } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  await deleteCategory(userId, id);
-  return text("Category deleted", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/category/[id]/file/add/+server.ts

@@ -1,25 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { categoryFileAddRequest } from "$lib/server/schemas";
-import { addCategoryFile } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const paramsZodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!paramsZodRes.success) error(400, "Invalid path parameters");
-  const { id } = paramsZodRes.data;
-
-  const bodyZodRes = categoryFileAddRequest.safeParse(await request.json());
-  if (!bodyZodRes.success) error(400, "Invalid request body");
-  const { file } = bodyZodRes.data;
-
-  await addCategoryFile(userId, id, file);
-  return text("File added", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/category/[id]/file/list/+server.ts

@@ -1,36 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { categoryFileListResponse, type CategoryFileListResponse } from "$lib/server/schemas";
-import { getCategoryFiles } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals, url, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const paramsZodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!paramsZodRes.success) error(400, "Invalid path parameters");
-  const { id } = paramsZodRes.data;
-
-  const queryZodRes = z
-    .object({
-      recurse: z
-        .enum(["true", "false"])
-        .transform((value) => value === "true")
-        .nullable(),
-    })
-    .safeParse({ recurse: url.searchParams.get("recurse") });
-  if (!queryZodRes.success) error(400, "Invalid query parameters");
-  const { recurse } = queryZodRes.data;
-
-  const { files } = await getCategoryFiles(userId, id, recurse ?? false);
-  return json(
-    categoryFileListResponse.parse({
-      files: files.map(({ id, isRecursive }) => ({ file: id, isRecursive })),
-    } satisfies CategoryFileListResponse),
-  );
-};

src/routes/api/category/[id]/file/remove/+server.ts

@@ -1,25 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { categoryFileRemoveRequest } from "$lib/server/schemas";
-import { removeCategoryFile } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const paramsZodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!paramsZodRes.success) error(400, "Invalid path parameters");
-  const { id } = paramsZodRes.data;
-
-  const bodyZodRes = categoryFileRemoveRequest.safeParse(await request.json());
-  if (!bodyZodRes.success) error(400, "Invalid request body");
-  const { file } = bodyZodRes.data;
-
-  await removeCategoryFile(userId, id, file);
-  return text("File removed", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/category/[id]/rename/+server.ts

@@ -1,25 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { categoryRenameRequest } from "$lib/server/schemas";
-import { renameCategory } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const paramsZodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!paramsZodRes.success) error(400, "Invalid path parameters");
-  const { id } = paramsZodRes.data;
-
-  const bodyZodRes = categoryRenameRequest.safeParse(await request.json());
-  if (!bodyZodRes.success) error(400, "Invalid request body");
-  const { dekVersion, name, nameIv } = bodyZodRes.data;
-
-  await renameCategory(userId, id, new Date(dekVersion), { ciphertext: name, iv: nameIv });
-  return text("Category renamed", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/category/create/+server.ts

@@ -1,23 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { categoryCreateRequest } from "$lib/server/schemas";
-import { createCategory } from "$lib/server/services/category";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = categoryCreateRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { parent, mekVersion, dek, dekVersion, name, nameIv } = zodRes.data;
-
-  await createCategory({
-    userId,
-    parentId: parent,
-    mekVersion,
-    encDek: dek,
-    dekVersion: new Date(dekVersion),
-    encName: { ciphertext: name, iv: nameIv },
-  });
-  return text("Category created", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/client/list/+server.ts

@@ -1,11 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { clientListResponse, type ClientListResponse } from "$lib/server/schemas";
-import { getUserClientList } from "$lib/server/services/client";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals }) => {
-  const { userId } = await authorize(locals, "anyClient");
-  const { userClients } = await getUserClientList(userId);
-  return json(clientListResponse.parse({ clients: userClients } satisfies ClientListResponse));
-};

src/routes/api/client/register/+server.ts

@@ -1,20 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import {
-  clientRegisterRequest,
-  clientRegisterResponse,
-  type ClientRegisterResponse,
-} from "$lib/server/schemas";
-import { registerUserClient } from "$lib/server/services/client";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId } = await authorize(locals, "notClient");
-
-  const zodRes = clientRegisterRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { encPubKey, sigPubKey } = zodRes.data;
-
-  const { id, challenge } = await registerUserClient(userId, locals.ip, encPubKey, sigPubKey);
-  return json(clientRegisterResponse.parse({ id, challenge } satisfies ClientRegisterResponse));
-};

src/routes/api/client/register/verify/+server.ts

@@ -1,16 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { clientRegisterVerifyRequest } from "$lib/server/schemas";
-import { verifyUserClient } from "$lib/server/services/client";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId } = await authorize(locals, "notClient");
-
-  const zodRes = clientRegisterVerifyRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { id, answerSig } = zodRes.data;
-
-  await verifyUserClient(userId, locals.ip, id, answerSig);
-  return text("Client verified", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/client/status/+server.ts

@@ -1,17 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { clientStatusResponse, type ClientStatusResponse } from "$lib/server/schemas";
-import { getUserClientStatus } from "$lib/server/services/client";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals }) => {
-  const { userId, clientId } = await authorize(locals, "anyClient");
-  const { state, isInitialMekNeeded } = await getUserClientStatus(userId, clientId);
-  return json(
-    clientStatusResponse.parse({
-      id: clientId,
-      state,
-      isInitialMekNeeded,
-    } satisfies ClientStatusResponse),
-  );
-};

src/routes/api/directory/[id]/+server.ts

@@ -1,34 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { directoryInfoResponse, type DirectoryInfoResponse } from "$lib/server/schemas";
-import { getDirectoryInformation } from "$lib/server/services/directory";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.union([z.enum(["root"]), z.coerce.number().int().positive()]),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  const { metadata, directories, files } = await getDirectoryInformation(userId, id);
-  return json(
-    directoryInfoResponse.parse({
-      metadata: metadata && {
-        parent: metadata.parentId,
-        mekVersion: metadata.mekVersion,
-        dek: metadata.encDek,
-        dekVersion: metadata.dekVersion.toISOString(),
-        name: metadata.encName.ciphertext,
-        nameIv: metadata.encName.iv,
-      },
-      subDirectories: directories,
-      files,
-    } satisfies DirectoryInfoResponse),
-  );
-};

src/routes/api/directory/[id]/delete/+server.ts

@@ -1,23 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { directoryDeleteResponse, type DirectoryDeleteResponse } from "$lib/server/schemas";
-import { deleteDirectory } from "$lib/server/services/directory";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  const { files } = await deleteDirectory(userId, id);
-  return json(
-    directoryDeleteResponse.parse({ deletedFiles: files } satisfies DirectoryDeleteResponse),
-  );
-};

src/routes/api/directory/[id]/rename/+server.ts

@@ -1,25 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { directoryRenameRequest } from "$lib/server/schemas";
-import { renameDirectory } from "$lib/server/services/directory";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const paramsZodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!paramsZodRes.success) error(400, "Invalid path parameters");
-  const { id } = paramsZodRes.data;
-
-  const bodyZodRes = directoryRenameRequest.safeParse(await request.json());
-  if (!bodyZodRes.success) error(400, "Invalid request body");
-  const { dekVersion, name, nameIv } = bodyZodRes.data;
-
-  await renameDirectory(userId, id, new Date(dekVersion), { ciphertext: name, iv: nameIv });
-  return text("Directory renamed", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/directory/create/+server.ts

@@ -1,23 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { directoryCreateRequest } from "$lib/server/schemas";
-import { createDirectory } from "$lib/server/services/directory";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = directoryCreateRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { parent, mekVersion, dek, dekVersion, name, nameIv } = zodRes.data;
-
-  await createDirectory({
-    userId,
-    parentId: parent,
-    mekVersion,
-    encDek: dek,
-    dekVersion: new Date(dekVersion),
-    encName: { ciphertext: name, iv: nameIv },
-  });
-  return text("Directory created", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/file/[id]/+server.ts

@@ -1,48 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { fileInfoResponse, type FileInfoResponse } from "$lib/server/schemas";
-import { getFileInformation } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  const {
-    parentId,
-    mekVersion,
-    encDek,
-    dekVersion,
-    contentType,
-    encContentIv,
-    encName,
-    encCreatedAt,
-    encLastModifiedAt,
-    categories,
-  } = await getFileInformation(userId, id);
-  return json(
-    fileInfoResponse.parse({
-      parent: parentId,
-      mekVersion,
-      dek: encDek,
-      dekVersion: dekVersion.toISOString(),
-      contentType: contentType,
-      contentIv: encContentIv,
-      name: encName.ciphertext,
-      nameIv: encName.iv,
-      createdAt: encCreatedAt?.ciphertext,
-      createdAtIv: encCreatedAt?.iv,
-      lastModifiedAt: encLastModifiedAt.ciphertext,
-      lastModifiedAtIv: encLastModifiedAt.iv,
-      categories,
-    } satisfies FileInfoResponse),
-  );
-};

src/routes/api/file/[id]/delete/+server.ts

@@ -1,20 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { deleteFile } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  await deleteFile(userId, id);
-  return text("File deleted", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/file/[id]/rename/+server.ts

@@ -1,25 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { fileRenameRequest } from "$lib/server/schemas";
-import { renameFile } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, params, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const paramsZodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!paramsZodRes.success) error(400, "Invalid path parameters");
-  const { id } = paramsZodRes.data;
-
-  const bodyZodRes = fileRenameRequest.safeParse(await request.json());
-  if (!bodyZodRes.success) error(400, "Invalid request body");
-  const { dekVersion, name, nameIv } = bodyZodRes.data;
-
-  await renameFile(userId, id, new Date(dekVersion), { ciphertext: name, iv: nameIv });
-  return text("File renamed", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/file/[id]/thumbnail/+server.ts

@@ -1,26 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { z } from "zod";
-import { authorize } from "$lib/server/modules/auth";
-import { fileThumbnailInfoResponse, type FileThumbnailInfoResponse } from "$lib/server/schemas";
-import { getFileThumbnailInformation } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals, params }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = z
-    .object({
-      id: z.coerce.number().int().positive(),
-    })
-    .safeParse(params);
-  if (!zodRes.success) error(400, "Invalid path parameters");
-  const { id } = zodRes.data;
-
-  const { updatedAt, encContentIv } = await getFileThumbnailInformation(userId, id);
-  return json(
-    fileThumbnailInfoResponse.parse({
-      updatedAt: updatedAt.toISOString(),
-      contentIv: encContentIv,
-    } satisfies FileThumbnailInfoResponse),
-  );
-};

src/routes/api/file/list/+server.ts

@@ -1,11 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { fileListResponse, type FileListResponse } from "$lib/server/schemas";
-import { getFileList } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals }) => {
-  const { userId } = await authorize(locals, "activeClient");
-  const { files } = await getFileList(userId);
-  return json(fileListResponse.parse({ files } satisfies FileListResponse));
-};

src/routes/api/file/scanDuplicates/+server.ts

@@ -1,20 +0,0 @@
-import { error, json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import {
-  duplicateFileScanRequest,
-  duplicateFileScanResponse,
-  type DuplicateFileScanResponse,
-} from "$lib/server/schemas";
-import { scanDuplicateFiles } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId } = await authorize(locals, "activeClient");
-
-  const zodRes = duplicateFileScanRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { hskVersion, contentHmac } = zodRes.data;
-
-  const { files } = await scanDuplicateFiles(userId, hskVersion, contentHmac);
-  return json(duplicateFileScanResponse.parse({ files } satisfies DuplicateFileScanResponse));
-};

src/routes/api/file/scanMissingThumbnails/+server.ts

@@ -1,16 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import {
-  missingThumbnailFileScanResponse,
-  type MissingThumbnailFileScanResponse,
-} from "$lib/server/schemas/file";
-import { scanMissingFileThumbnails } from "$lib/server/services/file";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals }) => {
-  const { userId } = await authorize(locals, "activeClient");
-  const { files } = await scanMissingFileThumbnails(userId);
-  return json(
-    missingThumbnailFileScanResponse.parse({ files } satisfies MissingThumbnailFileScanResponse),
-  );
-};

src/routes/api/hsk/list/+server.ts

@@ -1,20 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { hmacSecretListResponse, type HmacSecretListResponse } from "$lib/server/schemas";
-import { getHskList } from "$lib/server/services/hsk";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals }) => {
-  const { userId } = await authorize(locals, "activeClient");
-  const { encHsks } = await getHskList(userId);
-  return json(
-    hmacSecretListResponse.parse({
-      hsks: encHsks.map(({ version, state, mekVersion, encHsk }) => ({
-        version,
-        state,
-        mekVersion,
-        hsk: encHsk,
-      })),
-    } satisfies HmacSecretListResponse),
-  );
-};

src/routes/api/hsk/register/initial/+server.ts

@@ -1,16 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { initialHmacSecretRegisterRequest } from "$lib/server/schemas";
-import { registerInitialActiveHsk } from "$lib/server/services/hsk";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId, clientId } = await authorize(locals, "activeClient");
-
-  const zodRes = initialHmacSecretRegisterRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { mekVersion, hsk } = zodRes.data;
-
-  await registerInitialActiveHsk(userId, clientId, mekVersion, hsk);
-  return text("HSK registered", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/mek/list/+server.ts

@@ -1,20 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { masterKeyListResponse, type MasterKeyListResponse } from "$lib/server/schemas";
-import { getClientMekList } from "$lib/server/services/mek";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals }) => {
-  const { userId, clientId } = await authorize(locals, "activeClient");
-  const { encMeks } = await getClientMekList(userId, clientId);
-  return json(
-    masterKeyListResponse.parse({
-      meks: encMeks.map(({ version, state, encMek, encMekSig }) => ({
-        version,
-        state,
-        mek: encMek,
-        mekSig: encMekSig,
-      })),
-    } satisfies MasterKeyListResponse),
-  );
-};

src/routes/api/mek/register/initial/+server.ts

@@ -1,16 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { initialMasterKeyRegisterRequest } from "$lib/server/schemas";
-import { registerInitialActiveMek } from "$lib/server/services/mek";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId, clientId } = await authorize(locals, "pendingClient");
-
-  const zodRes = initialMasterKeyRegisterRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { mek, mekSig } = zodRes.data;
-
-  await registerInitialActiveMek(userId, clientId, mek, mekSig);
-  return text("MEK registered", { headers: { "Content-Type": "text/plain" } });
-};

src/routes/api/trpc/[trpc]/+server.ts

@@ -0,0 +1,15 @@
+import { fetchRequestHandler } from "@trpc/server/adapters/fetch";
+import { createContext } from "$trpc/init.server";
+import { appRouter } from "$trpc/router.server";
+import type { RequestHandler } from "./$types";
+
+const trpcHandler: RequestHandler = (event) =>
+  fetchRequestHandler({
+    endpoint: "/api/trpc",
+    req: event.request,
+    router: appRouter,
+    createContext: () => createContext(event),
+  });
+
+export const GET = trpcHandler;
+export const POST = trpcHandler;

src/routes/api/user/+server.ts

@@ -1,11 +0,0 @@
-import { json } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { userInfoResponse, type UserInfoResponse } from "$lib/server/schemas";
-import { getUserInformation } from "$lib/server/services/user";
-import type { RequestHandler } from "./$types";
-
-export const GET: RequestHandler = async ({ locals }) => {
-  const { userId } = await authorize(locals, "any");
-  const { email, nickname } = await getUserInformation(userId);
-  return json(userInfoResponse.parse({ email, nickname } satisfies UserInfoResponse));
-};

src/routes/api/user/changeNickname/+server.ts

@@ -1,16 +0,0 @@
-import { error, text } from "@sveltejs/kit";
-import { authorize } from "$lib/server/modules/auth";
-import { nicknameChangeRequest } from "$lib/server/schemas";
-import { changeNickname } from "$lib/server/services/user";
-import type { RequestHandler } from "./$types";
-
-export const POST: RequestHandler = async ({ locals, request }) => {
-  const { userId } = await authorize(locals, "any");
-
-  const zodRes = nicknameChangeRequest.safeParse(await request.json());
-  if (!zodRes.success) error(400, "Invalid request body");
-  const { newNickname } = zodRes.data;
-
-  await changeNickname(userId, newNickname);
-  return text("Nickname changed", { headers: { "Content-Type": "text/plain" } });
-};

src/trpc/client.ts

@@ -0,0 +1,25 @@
+import { createTRPCClient, httpBatchLink } from "@trpc/client";
+import superjson from "superjson";
+import { browser } from "$app/environment";
+import type { AppRouter } from "./router.server";
+
+const createClient = (fetch: typeof globalThis.fetch) =>
+  createTRPCClient<AppRouter>({
+    links: [
+      httpBatchLink({
+        url: "/api/trpc",
+        transformer: superjson,
+        fetch,
+      }),
+    ],
+  });
+
+let browserClient: ReturnType<typeof createClient>;
+
+export const useTRPC = (fetch = globalThis.fetch) => {
+  const client = browserClient ?? createClient(fetch);
+  if (browser) {
+    browserClient ??= client;
+  }
+  return client;
+};

src/trpc/init.server.ts

@@ -0,0 +1,27 @@
+import type { RequestEvent } from "@sveltejs/kit";
+import { initTRPC, TRPCError } from "@trpc/server";
+import superjson from "superjson";
+import { authorizeMiddleware, authorizeClientMiddleware } from "./middlewares/authorize";
+
+export type Context = Awaited<ReturnType<typeof createContext>>;
+
+export const createContext = (event: RequestEvent) => event;
+export const t = initTRPC.context<Context>().create({ transformer: superjson });
+
+export const router = t.router;
+export const publicProcedure = t.procedure;
+
+const authedProcedure = publicProcedure.use(async ({ ctx, next }) => {
+  if (!ctx.locals.session) {
+    throw new TRPCError({ code: "UNAUTHORIZED" });
+  }
+  return next();
+});
+
+export const roleProcedure = {
+  any: authedProcedure.use(authorizeMiddleware("any")),
+  notClient: authedProcedure.use(authorizeMiddleware("notClient")),
+  anyClient: authedProcedure.use(authorizeClientMiddleware("anyClient")),
+  pendingClient: authedProcedure.use(authorizeClientMiddleware("pendingClient")),
+  activeClient: authedProcedure.use(authorizeClientMiddleware("activeClient")),
+};

src/trpc/middlewares/authorize.ts

@@ -0,0 +1,36 @@
+import { TRPCError } from "@trpc/server";
+import {
+  AuthorizationError,
+  authorizeInternal,
+  type ClientSession,
+  type SessionPermission,
+} from "$lib/server/modules/auth";
+import { t } from "../init.server";
+
+const authorize = async (locals: App.Locals, requiredPermission: SessionPermission) => {
+  try {
+    return await authorizeInternal(locals, requiredPermission);
+  } catch (e) {
+    if (e instanceof AuthorizationError) {
+      throw new TRPCError({
+        code: e.status === 403 ? "FORBIDDEN" : "INTERNAL_SERVER_ERROR",
+        message: e.message,
+      });
+    }
+    throw e;
+  }
+};
+
+export const authorizeMiddleware = (requiredPermission: "any" | "notClient") =>
+  t.middleware(async ({ ctx, next }) => {
+    const session = await authorize(ctx.locals, requiredPermission);
+    return next({ ctx: { session } });
+  });
+
+export const authorizeClientMiddleware = (
+  requiredPermission: "anyClient" | "pendingClient" | "activeClient",
+) =>
+  t.middleware(async ({ ctx, next }) => {
+    const session = (await authorize(ctx.locals, requiredPermission)) as ClientSession;
+    return next({ ctx: { session } });
+  });

src/trpc/router.server.ts

@@ -0,0 +1,30 @@
+import type { RequestEvent } from "@sveltejs/kit";
+import type { inferRouterInputs, inferRouterOutputs } from "@trpc/server";
+import { createContext, router } from "./init.server";
+import {
+  authRouter,
+  categoryRouter,
+  clientRouter,
+  directoryRouter,
+  fileRouter,
+  hskRouter,
+  mekRouter,
+  userRouter,
+} from "./routers";
+
+export const appRouter = router({
+  auth: authRouter,
+  category: categoryRouter,
+  client: clientRouter,
+  directory: directoryRouter,
+  file: fileRouter,
+  hsk: hskRouter,
+  mek: mekRouter,
+  user: userRouter,
+});
+
+export const createCaller = (event: RequestEvent) => appRouter.createCaller(createContext(event));
+
+export type AppRouter = typeof appRouter;
+export type RouterInputs = inferRouterInputs<AppRouter>;
+export type RouterOutputs = inferRouterOutputs<AppRouter>;

src/trpc/routers/auth.ts

@@ -0,0 +1,153 @@
+import { TRPCError } from "@trpc/server";
+import argon2 from "argon2";
+import { z } from "zod";
+import { ClientRepo, SessionRepo, UserRepo, IntegrityError } from "$lib/server/db";
+import env from "$lib/server/loadenv";
+import { startSession } from "$lib/server/modules/auth";
+import { generateChallenge, verifySignature } from "$lib/server/modules/crypto";
+import { publicProcedure, roleProcedure, router } from "../init.server";
+
+const hashPassword = async (password: string) => {
+  return await argon2.hash(password);
+};
+
+const verifyPassword = async (hash: string, password: string) => {
+  return await argon2.verify(hash, password);
+};
+
+const authRouter = router({
+  login: publicProcedure
+    .input(
+      z.object({
+        email: z.email(),
+        password: z.string().trim().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const user = await UserRepo.getUserByEmail(input.email);
+      if (!user || !(await verifyPassword(user.password, input.password))) {
+        throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid email or password" });
+      }
+
+      const sessionIdSigned = await startSession(user.id, ctx.locals.ip, ctx.locals.userAgent);
+      ctx.cookies.set("sessionId", sessionIdSigned, {
+        path: "/",
+        maxAge: env.session.exp / 1000,
+        secure: true,
+        sameSite: "strict",
+      });
+    }),
+
+  logout: roleProcedure["any"].mutation(async ({ ctx }) => {
+    await SessionRepo.deleteSession(ctx.session.sessionId);
+    ctx.cookies.delete("sessionId", { path: "/" });
+  }),
+
+  changePassword: roleProcedure["any"]
+    .input(
+      z.object({
+        oldPassword: z.string().trim().nonempty(),
+        newPassword: z.string().trim().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      if (input.oldPassword === input.newPassword) {
+        throw new TRPCError({ code: "BAD_REQUEST", message: "Same passwords" });
+      } else if (input.newPassword.length < 8) {
+        throw new TRPCError({ code: "BAD_REQUEST", message: "Too short password" });
+      }
+
+      const user = await UserRepo.getUser(ctx.session.userId);
+      if (!user) {
+        throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Invalid session id" });
+      } else if (!(await verifyPassword(user.password, input.oldPassword))) {
+        throw new TRPCError({ code: "FORBIDDEN", message: "Invalid password" });
+      }
+
+      await UserRepo.setUserPassword(ctx.session.userId, await hashPassword(input.newPassword));
+      await SessionRepo.deleteAllOtherSessions(ctx.session.userId, ctx.session.sessionId);
+    }),
+
+  upgradeSession: roleProcedure["notClient"]
+    .input(
+      z.object({
+        encPubKey: z.base64().nonempty(),
+        sigPubKey: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const client = await ClientRepo.getClientByPubKeys(input.encPubKey, input.sigPubKey);
+      const userClient = client
+        ? await ClientRepo.getUserClient(ctx.session.userId, client.id)
+        : undefined;
+      if (!client) {
+        throw new TRPCError({ code: "UNAUTHORIZED", message: "Invalid public key(s)" });
+      } else if (!userClient || userClient.state === "challenging") {
+        throw new TRPCError({ code: "FORBIDDEN", message: "Unregistered client" });
+      }
+
+      const { answer, challenge } = await generateChallenge(32, input.encPubKey);
+      const { id } = await SessionRepo.registerSessionUpgradeChallenge(
+        ctx.session.sessionId,
+        client.id,
+        answer.toString("base64"),
+        ctx.locals.ip,
+        new Date(Date.now() + env.challenge.sessionUpgradeExp),
+      );
+      return { id, challenge: challenge.toString("base64") };
+    }),
+
+  verifySessionUpgrade: roleProcedure["notClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        answerSig: z.base64().nonempty(),
+        force: z.boolean().default(false),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const challenge = await SessionRepo.consumeSessionUpgradeChallenge(
+        input.id,
+        ctx.session.sessionId,
+        ctx.locals.ip,
+      );
+      if (!challenge) {
+        throw new TRPCError({ code: "FORBIDDEN", message: "Invalid challenge answer" });
+      }
+
+      const client = await ClientRepo.getClient(challenge.clientId);
+      if (!client) {
+        throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Invalid challenge answer" });
+      } else if (
+        !verifySignature(Buffer.from(challenge.answer, "base64"), input.answerSig, client.sigPubKey)
+      ) {
+        throw new TRPCError({
+          code: "FORBIDDEN",
+          message: "Invalid challenge answer signature",
+        });
+      }
+
+      try {
+        await SessionRepo.upgradeSession(
+          ctx.session.userId,
+          ctx.session.sessionId,
+          client.id,
+          input.force,
+        );
+      } catch (e) {
+        if (e instanceof IntegrityError) {
+          if (e.message === "Session not found") {
+            throw new TRPCError({
+              code: "INTERNAL_SERVER_ERROR",
+              message: "Invalid challenge answer",
+            });
+          } else if (!input.force && e.message === "Session already exists") {
+            throw new TRPCError({ code: "CONFLICT", message: "Already logged in" });
+          }
+        }
+        throw e;
+      }
+    }),
+});
+
+export default authRouter;

src/trpc/routers/category.ts

@@ -0,0 +1,194 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { CategoryRepo, FileRepo, IntegrityError } from "$lib/server/db";
+import { categoryIdSchema } from "$lib/server/schemas";
+import { router, roleProcedure } from "../init.server";
+
+const categoryRouter = router({
+  get: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: categoryIdSchema,
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      const category =
+        input.id !== "root"
+          ? await CategoryRepo.getCategory(ctx.session.userId, input.id)
+          : undefined;
+      if (category === null) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid category id" });
+      }
+
+      const categories = await CategoryRepo.getAllCategoriesByParent(ctx.session.userId, input.id);
+      return {
+        metadata: category && {
+          parent: category.parentId,
+          mekVersion: category.mekVersion,
+          dek: category.encDek,
+          dekVersion: category.dekVersion,
+          name: category.encName.ciphertext,
+          nameIv: category.encName.iv,
+        },
+        subCategories: categories.map(({ id }) => id),
+      };
+    }),
+
+  create: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        parent: categoryIdSchema,
+        mekVersion: z.int().positive(),
+        dek: z.base64().nonempty(),
+        dekVersion: z.date(),
+        name: z.base64().nonempty(),
+        nameIv: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const oneMinuteAgo = new Date(Date.now() - 60 * 1000);
+      const oneMinuteLater = new Date(Date.now() + 60 * 1000);
+      if (input.dekVersion <= oneMinuteAgo || input.dekVersion >= oneMinuteLater) {
+        throw new TRPCError({ code: "BAD_REQUEST", message: "Invalid DEK version" });
+      }
+
+      try {
+        await CategoryRepo.registerCategory({
+          parentId: input.parent,
+          userId: ctx.session.userId,
+          mekVersion: input.mekVersion,
+          encDek: input.dek,
+          dekVersion: input.dekVersion,
+          encName: { ciphertext: input.name, iv: input.nameIv },
+        });
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "Inactive MEK version") {
+          throw new TRPCError({ code: "BAD_REQUEST", message: e.message });
+        }
+        throw e;
+      }
+    }),
+
+  rename: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        dekVersion: z.date(),
+        name: z.base64().nonempty(),
+        nameIv: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        await CategoryRepo.setCategoryEncName(ctx.session.userId, input.id, input.dekVersion, {
+          ciphertext: input.name,
+          iv: input.nameIv,
+        });
+      } catch (e) {
+        if (e instanceof IntegrityError) {
+          if (e.message === "Category not found") {
+            throw new TRPCError({ code: "NOT_FOUND", message: "Invalid category id" });
+          } else if (e.message === "Invalid DEK version") {
+            throw new TRPCError({ code: "BAD_REQUEST", message: e.message });
+          }
+        }
+        throw e;
+      }
+    }),
+
+  delete: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        await CategoryRepo.unregisterCategory(ctx.session.userId, input.id);
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "Category not found") {
+          throw new TRPCError({ code: "NOT_FOUND", message: "Invalid category id" });
+        }
+        throw e;
+      }
+    }),
+
+  files: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        recurse: z.boolean().default(false),
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      const category = await CategoryRepo.getCategory(ctx.session.userId, input.id);
+      if (!category) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid category id" });
+      }
+
+      const files = await FileRepo.getAllFilesByCategory(
+        ctx.session.userId,
+        input.id,
+        input.recurse,
+      );
+      return files.map(({ id, isRecursive }) => ({ file: id, isRecursive }));
+    }),
+
+  addFile: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        file: z.int().positive(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const [category, file] = await Promise.all([
+        CategoryRepo.getCategory(ctx.session.userId, input.id),
+        FileRepo.getFile(ctx.session.userId, input.file),
+      ]);
+      if (!category) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid category id" });
+      } else if (!file) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid file id" });
+      }
+
+      try {
+        await FileRepo.addFileToCategory(input.file, input.id);
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "File already added to category") {
+          throw new TRPCError({ code: "BAD_REQUEST", message: "File already added" });
+        }
+        throw e;
+      }
+    }),
+
+  removeFile: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        file: z.int().positive(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const [category, file] = await Promise.all([
+        CategoryRepo.getCategory(ctx.session.userId, input.id),
+        FileRepo.getFile(ctx.session.userId, input.file),
+      ]);
+      if (!category) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid category id" });
+      } else if (!file) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid file id" });
+      }
+
+      try {
+        await FileRepo.removeFileFromCategory(input.file, input.id);
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "File not found in category") {
+          throw new TRPCError({ code: "BAD_REQUEST", message: "File not added" });
+        }
+        throw e;
+      }
+    }),
+});
+
+export default categoryRouter;

src/trpc/routers/client.ts

@@ -0,0 +1,96 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { ClientRepo, IntegrityError } from "$lib/server/db";
+import { verifyPubKey, verifySignature, generateChallenge } from "$lib/server/modules/crypto";
+import env from "$lib/server/loadenv";
+import { router, roleProcedure } from "../init.server";
+
+const createUserClientChallenge = async (
+  ip: string,
+  userId: number,
+  clientId: number,
+  encPubKey: string,
+) => {
+  const { answer, challenge } = await generateChallenge(32, encPubKey);
+  const { id } = await ClientRepo.registerUserClientChallenge(
+    userId,
+    clientId,
+    answer.toString("base64"),
+    ip,
+    new Date(Date.now() + env.challenge.userClientExp),
+  );
+  return { id, challenge: challenge.toString("base64") };
+};
+
+const clientRouter = router({
+  register: roleProcedure["notClient"]
+    .input(
+      z.object({
+        encPubKey: z.base64().nonempty(),
+        sigPubKey: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const { userId } = ctx.session;
+      const { encPubKey, sigPubKey } = input;
+      const client = await ClientRepo.getClientByPubKeys(encPubKey, sigPubKey);
+      if (client) {
+        try {
+          await ClientRepo.createUserClient(userId, client.id);
+          return await createUserClientChallenge(ctx.locals.ip, userId, client.id, encPubKey);
+        } catch (e) {
+          if (e instanceof IntegrityError && e.message === "User client already exists") {
+            throw new TRPCError({ code: "CONFLICT", message: "Client already registered" });
+          }
+          throw e;
+        }
+      } else {
+        if (encPubKey === sigPubKey) {
+          throw new TRPCError({ code: "BAD_REQUEST", message: "Same public keys" });
+        } else if (!verifyPubKey(encPubKey) || !verifyPubKey(sigPubKey)) {
+          throw new TRPCError({ code: "BAD_REQUEST", message: "Invalid public key(s)" });
+        }
+
+        try {
+          const { id: clientId } = await ClientRepo.createClient(encPubKey, sigPubKey, userId);
+          return await createUserClientChallenge(ctx.locals.ip, userId, clientId, encPubKey);
+        } catch (e) {
+          if (e instanceof IntegrityError && e.message === "Public key(s) already registered") {
+            throw new TRPCError({ code: "CONFLICT", message: "Public key(s) already used" });
+          }
+          throw e;
+        }
+      }
+    }),
+
+  verify: roleProcedure["notClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        answerSig: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const challenge = await ClientRepo.consumeUserClientChallenge(
+        input.id,
+        ctx.session.userId,
+        ctx.locals.ip,
+      );
+      if (!challenge) {
+        throw new TRPCError({ code: "FORBIDDEN", message: "Invalid challenge answer" });
+      }
+
+      const client = await ClientRepo.getClient(challenge.clientId);
+      if (!client) {
+        throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Invalid challenge answer" });
+      } else if (
+        !verifySignature(Buffer.from(challenge.answer, "base64"), input.answerSig, client.sigPubKey)
+      ) {
+        throw new TRPCError({ code: "FORBIDDEN", message: "Invalid challenge answer signature" });
+      }
+
+      await ClientRepo.setUserClientStateToPending(ctx.session.userId, client.id);
+    }),
+});
+
+export default clientRouter;

src/trpc/routers/directory.ts

@@ -0,0 +1,125 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { FileRepo, IntegrityError } from "$lib/server/db";
+import { safeUnlink } from "$lib/server/modules/filesystem";
+import { directoryIdSchema } from "$lib/server/schemas";
+import { router, roleProcedure } from "../init.server";
+
+const directoryRouter = router({
+  get: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: directoryIdSchema,
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      const directory =
+        input.id !== "root" ? await FileRepo.getDirectory(ctx.session.userId, input.id) : undefined;
+      if (directory === null) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid directory id" });
+      }
+
+      const [directories, files] = await Promise.all([
+        FileRepo.getAllDirectoriesByParent(ctx.session.userId, input.id),
+        FileRepo.getAllFilesByParent(ctx.session.userId, input.id),
+      ]);
+      return {
+        metadata: directory && {
+          parent: directory.parentId,
+          mekVersion: directory.mekVersion,
+          dek: directory.encDek,
+          dekVersion: directory.dekVersion,
+          name: directory.encName.ciphertext,
+          nameIv: directory.encName.iv,
+        },
+        subDirectories: directories.map(({ id }) => id),
+        files: files.map(({ id }) => id),
+      };
+    }),
+
+  create: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        parent: directoryIdSchema,
+        mekVersion: z.int().positive(),
+        dek: z.base64().nonempty(),
+        dekVersion: z.date(),
+        name: z.base64().nonempty(),
+        nameIv: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const oneMinuteAgo = new Date(Date.now() - 60 * 1000);
+      const oneMinuteLater = new Date(Date.now() + 60 * 1000);
+      if (input.dekVersion <= oneMinuteAgo || input.dekVersion >= oneMinuteLater) {
+        throw new TRPCError({ code: "BAD_REQUEST", message: "Invalid DEK version" });
+      }
+
+      try {
+        await FileRepo.registerDirectory({
+          parentId: input.parent,
+          userId: ctx.session.userId,
+          mekVersion: input.mekVersion,
+          encDek: input.dek,
+          dekVersion: input.dekVersion,
+          encName: { ciphertext: input.name, iv: input.nameIv },
+        });
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "Inactive MEK version") {
+          throw new TRPCError({ code: "BAD_REQUEST", message: e.message });
+        }
+        throw e;
+      }
+    }),
+
+  rename: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        dekVersion: z.date(),
+        name: z.base64().nonempty(),
+        nameIv: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        await FileRepo.setDirectoryEncName(ctx.session.userId, input.id, input.dekVersion, {
+          ciphertext: input.name,
+          iv: input.nameIv,
+        });
+      } catch (e) {
+        if (e instanceof IntegrityError) {
+          if (e.message === "Directory not found") {
+            throw new TRPCError({ code: "NOT_FOUND", message: "Invalid directory id" });
+          } else if (e.message === "Invalid DEK version") {
+            throw new TRPCError({ code: "BAD_REQUEST", message: e.message });
+          }
+        }
+        throw e;
+      }
+    }),
+
+  delete: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        const files = await FileRepo.unregisterDirectory(ctx.session.userId, input.id);
+        files.forEach(({ path, thumbnailPath }) => {
+          safeUnlink(path); // Intended
+          safeUnlink(thumbnailPath); // Intended
+        });
+        return { deletedFiles: files.map(({ id }) => id) };
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "Directory not found") {
+          throw new TRPCError({ code: "NOT_FOUND", message: "Invalid directory id" });
+        }
+        throw e;
+      }
+    }),
+});
+
+export default directoryRouter;

src/trpc/routers/file.ts

@@ -0,0 +1,122 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { FileRepo, MediaRepo, IntegrityError } from "$lib/server/db";
+import { safeUnlink } from "$lib/server/modules/filesystem";
+import { router, roleProcedure } from "../init.server";
+
+const fileRouter = router({
+  get: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      const file = await FileRepo.getFile(ctx.session.userId, input.id);
+      if (!file) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "Invalid file id" });
+      }
+
+      const categories = await FileRepo.getAllFileCategories(input.id);
+      return {
+        parent: file.parentId,
+        mekVersion: file.mekVersion,
+        dek: file.encDek,
+        dekVersion: file.dekVersion,
+        contentType: file.contentType,
+        contentIv: file.encContentIv,
+        name: file.encName.ciphertext,
+        nameIv: file.encName.iv,
+        createdAt: file.encCreatedAt?.ciphertext,
+        createdAtIv: file.encCreatedAt?.iv,
+        lastModifiedAt: file.encLastModifiedAt.ciphertext,
+        lastModifiedAtIv: file.encLastModifiedAt.iv,
+        categories: categories.map(({ id }) => id),
+      };
+    }),
+
+  list: roleProcedure["activeClient"].query(async ({ ctx }) => {
+    return await FileRepo.getAllFileIds(ctx.session.userId);
+  }),
+
+  listByHash: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        hskVersion: z.int().positive(),
+        contentHmac: z.base64().nonempty(),
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      return await FileRepo.getAllFileIdsByContentHmac(
+        ctx.session.userId,
+        input.hskVersion,
+        input.contentHmac,
+      );
+    }),
+
+  listWithoutThumbnail: roleProcedure["activeClient"].query(async ({ ctx }) => {
+    return await MediaRepo.getMissingFileThumbnails(ctx.session.userId);
+  }),
+
+  rename: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+        dekVersion: z.date(),
+        name: z.base64().nonempty(),
+        nameIv: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        await FileRepo.setFileEncName(ctx.session.userId, input.id, input.dekVersion, {
+          ciphertext: input.name,
+          iv: input.nameIv,
+        });
+      } catch (e) {
+        if (e instanceof IntegrityError) {
+          if (e.message === "File not found") {
+            throw new TRPCError({ code: "NOT_FOUND", message: "Invalid file id" });
+          } else if (e.message === "Invalid DEK version") {
+            throw new TRPCError({ code: "BAD_REQUEST", message: e.message });
+          }
+        }
+        throw e;
+      }
+    }),
+
+  delete: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        const { path, thumbnailPath } = await FileRepo.unregisterFile(ctx.session.userId, input.id);
+        safeUnlink(path); // Intended
+        safeUnlink(thumbnailPath); // Intended
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "File not found") {
+          throw new TRPCError({ code: "NOT_FOUND", message: "Invalid file id" });
+        }
+        throw e;
+      }
+    }),
+
+  thumbnail: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        id: z.int().positive(),
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      const thumbnail = await MediaRepo.getFileThumbnail(ctx.session.userId, input.id);
+      if (!thumbnail) {
+        throw new TRPCError({ code: "NOT_FOUND", message: "File or its thumbnail not found" });
+      }
+      return { updatedAt: thumbnail.updatedAt, contentIv: thumbnail.encContentIv };
+    }),
+});
+
+export default fileRouter;

src/trpc/routers/hsk.ts

@@ -0,0 +1,41 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { HskRepo, IntegrityError } from "$lib/server/db";
+import { router, roleProcedure } from "../init.server";
+
+const hskRouter = router({
+  list: roleProcedure["activeClient"].query(async ({ ctx }) => {
+    const hsks = await HskRepo.getAllValidHsks(ctx.session.userId);
+    return hsks.map(({ version, state, mekVersion, encHsk }) => ({
+      version,
+      state,
+      mekVersion,
+      hsk: encHsk,
+    }));
+  }),
+
+  registerInitial: roleProcedure["activeClient"]
+    .input(
+      z.object({
+        mekVersion: z.int().positive(),
+        hsk: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      try {
+        await HskRepo.registerInitialHsk(
+          ctx.session.userId,
+          ctx.session.clientId,
+          input.mekVersion,
+          input.hsk,
+        );
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "HSK already registered") {
+          throw new TRPCError({ code: "CONFLICT", message: "Initial HSK already registered" });
+        }
+        throw e;
+      }
+    }),
+});
+
+export default hskRouter;

src/trpc/routers/index.ts

@@ -0,0 +1,8 @@
+export { default as authRouter } from "./auth";
+export { default as categoryRouter } from "./category";
+export { default as clientRouter } from "./client";
+export { default as directoryRouter } from "./directory";
+export { default as fileRouter } from "./file";
+export { default as hskRouter } from "./hsk";
+export { default as mekRouter } from "./mek";
+export { default as userRouter } from "./user";

src/trpc/routers/mek.ts

@@ -0,0 +1,63 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { ClientRepo, MekRepo, IntegrityError } from "$lib/server/db";
+import { verifySignature } from "$lib/server/modules/crypto";
+import { router, roleProcedure } from "../init.server";
+
+const verifyClientEncMekSig = async (
+  userId: number,
+  clientId: number,
+  version: number,
+  encMek: string,
+  encMekSig: string,
+) => {
+  const userClient = await ClientRepo.getUserClientWithDetails(userId, clientId);
+  if (!userClient) {
+    throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Invalid session id" });
+  }
+
+  const data = JSON.stringify({ version, key: encMek });
+  return verifySignature(Buffer.from(data), encMekSig, userClient.sigPubKey);
+};
+
+const mekRouter = router({
+  list: roleProcedure["activeClient"].query(async ({ ctx }) => {
+    const clientMeks = await MekRepo.getAllValidClientMeks(
+      ctx.session.userId,
+      ctx.session.clientId,
+    );
+    return clientMeks.map(({ version, state, encMek, encMekSig }) => ({
+      version,
+      state,
+      mek: encMek,
+      mekSig: encMekSig,
+    }));
+  }),
+
+  registerInitial: roleProcedure["pendingClient"]
+    .input(
+      z.object({
+        mek: z.base64().nonempty(),
+        mekSig: z.base64().nonempty(),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      const { userId, clientId } = ctx.session;
+      const { mek, mekSig } = input;
+      if (!(await verifyClientEncMekSig(userId, clientId, 1, mek, mekSig))) {
+        throw new TRPCError({ code: "BAD_REQUEST", message: "Invalid signature" });
+      }
+
+      try {
+        await MekRepo.registerInitialMek(userId, clientId, mek, mekSig);
+        await ClientRepo.setUserClientStateToActive(userId, clientId);
+      } catch (e) {
+        if (e instanceof IntegrityError && e.message === "MEK already registered") {
+          throw new TRPCError({ code: "CONFLICT", message: "Initial MEK already registered" });
+        }
+        throw e;
+      }
+    }),
+});
+
+export default mekRouter;

src/trpc/routers/user.ts

@@ -0,0 +1,16 @@
+import { TRPCError } from "@trpc/server";
+import { UserRepo } from "$lib/server/db";
+import { router, roleProcedure } from "../init.server";
+
+const userRouter = router({
+  get: roleProcedure["any"].query(async ({ ctx }) => {
+    const user = await UserRepo.getUser(ctx.session.userId);
+    if (!user) {
+      throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Invalid session id" });
+    }
+
+    return { email: user.email, nickname: user.nickname };
+  }),
+});
+
+export default userRouter;

svelte.config.js

@@ -3,15 +3,12 @@ import { vitePreprocess } from "@sveltejs/vite-plugin-svelte";
 
 /** @type {import('@sveltejs/kit').Config} */
 const config = {
-  // Consult https://svelte.dev/docs/kit/integrations
-  // for more information about preprocessors
   preprocess: vitePreprocess(),
-
   kit: {
-    // adapter-auto only supports some environments, see https://svelte.dev/docs/kit/adapter-auto for a list.
-    // If your environment is not supported, or you settled on a specific environment, switch out the adapter.
-    // See https://svelte.dev/docs/kit/adapters for more information about adapters.
     adapter: adapter(),
+    alias: {
+      $trpc: "./src/trpc",
+    },
   },
 };