/api/directory/[id], /api/directory/create Endpoint 구현

src/lib/server/db/file.ts

@@ -0,0 +1,73 @@
+import { and, eq, isNull } from "drizzle-orm";
+import db from "./drizzle";
+import { directory, file, mek } from "./schema";
+
+type DirectroyId = "root" | number;
+
+export interface NewDirectroyParams {
+  userId: number;
+  parentId: DirectroyId;
+  mekVersion: number;
+  encDek: string;
+  encDekIv: string;
+  encName: string;
+  encNameIv: string;
+}
+
+export const registerNewDirectory = async (params: NewDirectroyParams) => {
+  return await db.transaction(async (tx) => {
+    const meks = await tx
+      .select()
+      .from(mek)
+      .where(and(eq(mek.userId, params.userId), eq(mek.state, "active")));
+    if (meks[0]?.version !== params.mekVersion) {
+      throw new Error("Invalid MEK version");
+    }
+
+    const now = new Date();
+    await tx.insert(directory).values({
+      createdAt: now,
+      parentId: params.parentId === "root" ? null : params.parentId,
+      userId: params.userId,
+      mekVersion: params.mekVersion,
+      encDek: { ciphertext: params.encDek, iv: params.encDekIv },
+      encryptedAt: now,
+      encName: { ciphertext: params.encName, iv: params.encNameIv },
+    });
+  });
+};
+
+export const getAllDirectoriesByParent = async (userId: number, directoryId: DirectroyId) => {
+  return await db
+    .select()
+    .from(directory)
+    .where(
+      and(
+        eq(directory.userId, userId),
+        directoryId === "root" ? isNull(directory.parentId) : eq(directory.parentId, directoryId),
+      ),
+    )
+    .execute();
+};
+
+export const getDirectory = async (userId: number, directoryId: number) => {
+  const res = await db
+    .select()
+    .from(directory)
+    .where(and(eq(directory.userId, userId), eq(directory.id, directoryId)))
+    .execute();
+  return res[0] ?? null;
+};
+
+export const getAllFilesByParent = async (userId: number, parentId: DirectroyId) => {
+  return await db
+    .select()
+    .from(file)
+    .where(
+      and(
+        eq(file.userId, userId),
+        parentId === "root" ? isNull(file.parentId) : eq(file.parentId, parentId),
+      ),
+    )
+    .execute();
+};

src/lib/server/db/mek.ts

@@ -35,6 +35,15 @@ export const getInitialMek = async (userId: number) => {
   return meks[0] ?? null;
 };
 
+export const getActiveMekVersion = async (userId: number) => {
+  const meks = await db
+    .select({ version: mek.version })
+    .from(mek)
+    .where(and(eq(mek.userId, userId), eq(mek.state, "active")))
+    .execute();
+  return meks[0]?.version ?? null;
+};
+
 export const getAllValidClientMeks = async (userId: number, clientId: number) => {
   return await db
     .select()

src/lib/server/db/schema/file.ts

@@ -0,0 +1,58 @@
+import { sqliteTable, text, integer, foreignKey } from "drizzle-orm/sqlite-core";
+import { mek } from "./mek";
+import { user } from "./user";
+
+const ciphertext = (name: string) =>
+  text(name, { mode: "json" }).$type<{
+    ciphertext: string;
+    iv: string;
+  }>();
+
+export const directory = sqliteTable(
+  "directory",
+  {
+    id: integer("id").primaryKey({ autoIncrement: true }),
+    createdAt: integer("created_at", { mode: "timestamp_ms" }).notNull(),
+    parentId: integer("parent_id"),
+    userId: integer("user_id")
+      .notNull()
+      .references(() => user.id),
+    mekVersion: integer("master_encryption_key_version").notNull(),
+    encDek: ciphertext("encrypted_data_encryption_key").notNull().unique(),
+    encryptedAt: integer("encrypted_at", { mode: "timestamp_ms" }).notNull(),
+    encName: ciphertext("encrypted_name").notNull(),
+  },
+  (t) => ({
+    ref1: foreignKey({
+      columns: [t.parentId],
+      foreignColumns: [t.id],
+    }),
+    ref2: foreignKey({
+      columns: [t.userId, t.mekVersion],
+      foreignColumns: [mek.userId, mek.version],
+    }),
+  }),
+);
+
+export const file = sqliteTable(
+  "file",
+  {
+    id: integer("id").primaryKey({ autoIncrement: true }),
+    path: text("path").notNull().unique(),
+    parentId: integer("parent_id").references(() => directory.id),
+    createdAt: integer("created_at", { mode: "timestamp_ms" }).notNull(),
+    userId: integer("user_id")
+      .notNull()
+      .references(() => user.id),
+    mekVersion: integer("master_encryption_key_version").notNull(),
+    encDek: ciphertext("encrypted_data_encryption_key").notNull().unique(),
+    encryptedAt: integer("encrypted_at", { mode: "timestamp_ms" }).notNull(),
+    encName: ciphertext("encrypted_name").notNull(),
+  },
+  (t) => ({
+    ref: foreignKey({
+      columns: [t.userId, t.mekVersion],
+      foreignColumns: [mek.userId, mek.version],
+    }),
+  }),
+);

src/lib/server/db/schema/index.ts

@@ -1,4 +1,5 @@
 export * from "./client";
+export * from "./file";
 export * from "./mek";
 export * from "./token";
 export * from "./user";