tRPC Endpoint를 /api/trpc로 변경

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 +16,55 @@
     "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": "^1.2.44",
+    "@sveltejs/adapter-node": "^5.4.0",
+    "@sveltejs/kit": "^2.48.4",
+    "@sveltejs/vite-plugin-svelte": "^6.2.1",
+    "@trpc/client": "^11.7.1",
     "@types/file-saver": "^2.0.7",
     "@types/ms": "^0.7.34",
     "@types/node-schedule": "^2.1.8",
-    "@types/pg": "^8.15.4",
+    "@types/pg": "^8.15.6",
     "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",
+    "axios": "^1.13.1",
+    "dexie": "^4.2.1",
+    "eslint": "^9.39.0",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-svelte": "^3.13.0",
+    "eslint-plugin-tailwindcss": "^3.18.2",
+    "exifreader": "^4.32.0",
     "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",
+    "kysely-ctl": "^0.19.0",
+    "lru-cache": "^11.2.2",
+    "mime": "^4.1.0",
+    "p-limit": "^7.2.0",
     "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"
+    "prettier-plugin-tailwindcss": "^0.7.1",
+    "svelte": "^5.43.2",
+    "svelte-check": "^4.3.3",
+    "tailwindcss": "^3.4.18",
+    "typescript": "^5.9.3",
+    "typescript-eslint": "^8.46.2",
+    "unplugin-icons": "^22.5.0",
+    "vite": "^7.1.12"
   },
   "dependencies": {
-    "@fastify/busboy": "^3.1.1",
-    "argon2": "^0.43.0",
-    "kysely": "^0.28.2",
+    "@fastify/busboy": "^3.2.0",
+    "@trpc/server": "^11.7.1",
+    "argon2": "^0.44.0",
+    "kysely": "^0.28.8",
     "ms": "^2.1.3",
     "node-schedule": "^2.1.1",
     "pg": "^8.16.3",
-    "uuid": "^11.1.0",
+    "uuid": "^13.0.0",
     "zod": "^3.25.76"
   },
   "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/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/middlewares/authenticate.ts

@@ -4,7 +4,7 @@ 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") {
+  if (pathname === "/api/auth/login" || pathname.startsWith("/api/trpc")) {
     return await resolve(event);
   }
 

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/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/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/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 +1,4 @@
 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/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/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/file.ts

@@ -48,9 +48,9 @@ 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;

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/(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 +1,5 @@
 import { getContext, setContext } from "svelte";
-import { callGetApi, callPostApi } from "$lib/hooks";
+import { callPostApi } from "$lib/hooks";
 import { storeHmacSecrets } from "$lib/indexedDB";
 import { generateDataKey, wrapDataKey, unwrapHmacSecret, encryptString } from "$lib/modules/crypto";
 import {
@@ -13,10 +13,10 @@ 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 +40,16 @@ 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);

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.info.query();
+    return { nickname };
+  } catch {
     error(500, "Internal server error");
   }
-
-  const { nickname }: UserInfoResponse = await res.json();
-  return { nickname };
 };

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/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 +1,23 @@
+import { createTRPCClient, httpBatchLink } from "@trpc/client";
+import { browser } from "$app/environment";
+import type { AppRouter } from "./router.server";
+
+const createClient = (fetch: typeof globalThis.fetch) =>
+  createTRPCClient<AppRouter>({
+    links: [
+      httpBatchLink({
+        url: "/api/trpc",
+        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 +1,25 @@
+import type { RequestEvent } from "@sveltejs/kit";
+import { initTRPC, TRPCError } from "@trpc/server";
+import { authorizeMiddleware, authorizeClientMiddleware } from "./middlewares/authorize";
+
+export const createContext = (event: RequestEvent) => event;
+
+export const t = initTRPC.context<Awaited<ReturnType<typeof createContext>>>().create();
+
+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 +1,17 @@
+import type { RequestEvent } from "@sveltejs/kit";
+import type { inferRouterInputs, inferRouterOutputs } from "@trpc/server";
+import { createContext, router } from "./init.server";
+import { clientRouter, hskRouter, mekRouter, userRouter } from "./routers";
+
+export const appRouter = router({
+  client: clientRouter,
+  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/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.string().base64().nonempty(),
+        sigPubKey: z.string().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.number().int().positive(),
+        answerSig: z.string().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/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.number().int().positive(),
+        hsk: z.string().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 +1,4 @@
+export { default as clientRouter } from "./client";
+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.string().base64().nonempty(),
+        mekSig: z.string().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 +1,27 @@
+import { TRPCError } from "@trpc/server";
+import { z } from "zod";
+import { UserRepo } from "$lib/server/db";
+import { router, roleProcedure } from "../init.server";
+
+const userRouter = router({
+  info: 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 };
+  }),
+
+  changeNickname: roleProcedure.any
+    .input(
+      z.object({
+        newNickname: z.string().trim().min(2).max(8),
+      }),
+    )
+    .mutation(async ({ ctx, input }) => {
+      await UserRepo.setUserNickname(ctx.session.userId, input.newNickname);
+    }),
+});
+
+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",
+    },
   },
 };