/api/file/[id]/delete, /api/file/[id]/rename, /api/directory/[id]/delete, /api/directory/[id]/rename Endpoint 구현

src/lib/server/db/file.ts

@@ -69,6 +69,47 @@ export const getDirectory = async (userId: number, directoryId: number) => {
   return res[0] ?? null;
 };
 
+export const setDirectoryEncName = async (
+  userId: number,
+  directoryId: number,
+  encName: string,
+  encNameIv: string,
+) => {
+  await db
+    .update(directory)
+    .set({ encName: { ciphertext: encName, iv: encNameIv } })
+    .where(and(eq(directory.userId, userId), eq(directory.id, directoryId)))
+    .execute();
+};
+
+export const unregisterDirectory = async (userId: number, directoryId: number) => {
+  return await db.transaction(async (tx) => {
+    const getFilePaths = async (parentId: number) => {
+      const files = await tx
+        .select({ path: file.path })
+        .from(file)
+        .where(and(eq(file.userId, userId), eq(file.parentId, parentId)));
+      return files.map(({ path }) => path);
+    };
+    const unregisterSubDirectoriesRecursively = async (directoryId: number): Promise<string[]> => {
+      const subDirectories = await tx
+        .select({ id: directory.id })
+        .from(directory)
+        .where(and(eq(directory.userId, userId), eq(directory.parentId, directoryId)));
+      const subDirectoryFilePaths = await Promise.all(
+        subDirectories.map(async ({ id }) => await unregisterSubDirectoriesRecursively(id)),
+      );
+      const filePaths = await getFilePaths(directoryId);
+
+      await tx.delete(file).where(eq(file.parentId, directoryId));
+      await tx.delete(directory).where(eq(directory.id, directoryId));
+
+      return filePaths.concat(...subDirectoryFilePaths);
+    };
+    return await unregisterSubDirectoriesRecursively(directoryId);
+  });
+};
+
 export const registerNewFile = async (params: NewFileParams) => {
   await db.transaction(async (tx) => {
     const meks = await tx
@@ -115,3 +156,25 @@ export const getFile = async (userId: number, fileId: number) => {
     .execute();
   return res[0] ?? null;
 };
+
+export const setFileEncName = async (
+  userId: number,
+  fileId: number,
+  encName: string,
+  encNameIv: string,
+) => {
+  await db
+    .update(file)
+    .set({ encName: { ciphertext: encName, iv: encNameIv } })
+    .where(and(eq(file.userId, userId), eq(file.id, fileId)))
+    .execute();
+};
+
+export const unregisterFile = async (userId: number, fileId: number) => {
+  const res = await db
+    .delete(file)
+    .where(and(eq(file.userId, userId), eq(file.id, fileId)))
+    .returning({ path: file.path })
+    .execute();
+  return res[0]?.path ?? null;
+};

src/lib/server/schemas/directory.ts

@@ -1,5 +1,11 @@
 import { z } from "zod";
 
+export const directoryRenameRequest = z.object({
+  name: z.string().base64().nonempty(),
+  nameIv: z.string().base64().nonempty(),
+});
+export type DirectoryRenameRequest = z.infer<typeof directoryRenameRequest>;
+
 export const directroyInfoResponse = z.object({
   metadata: z
     .object({

src/lib/server/schemas/file.ts

@@ -1,5 +1,11 @@
 import { z } from "zod";
 
+export const fileRenameRequest = z.object({
+  name: z.string().base64().nonempty(),
+  nameIv: z.string().base64().nonempty(),
+});
+export type FileRenameRequest = z.infer<typeof fileRenameRequest>;
+
 export const fileInfoResponse = z.object({
   createdAt: z.date(),
   mekVersion: z.number().int().positive(),

src/lib/server/services/directory.ts

@@ -0,0 +1,68 @@
+import { error } from "@sveltejs/kit";
+import { unlink } from "fs/promises";
+import {
+  getAllDirectoriesByParent,
+  registerNewDirectory,
+  getDirectory,
+  setDirectoryEncName,
+  unregisterDirectory,
+  getAllFilesByParent,
+  type NewDirectroyParams,
+} from "$lib/server/db/file";
+import { getActiveMekVersion } from "$lib/server/db/mek";
+
+export const deleteDirectory = async (userId: number, directoryId: number) => {
+  const directory = await getDirectory(userId, directoryId);
+  if (!directory) {
+    error(404, "Invalid directory id");
+  }
+
+  const filePaths = await unregisterDirectory(userId, directoryId);
+  filePaths.map((path) => unlink(path)); // Intended
+};
+
+export const renameDirectory = async (
+  userId: number,
+  directoryId: number,
+  newEncName: string,
+  newEncNameIv: string,
+) => {
+  const directory = await getDirectory(userId, directoryId);
+  if (!directory) {
+    error(404, "Invalid directory id");
+  }
+
+  await setDirectoryEncName(userId, directoryId, newEncName, newEncNameIv);
+};
+
+export const getDirectroyInformation = async (userId: number, directroyId: "root" | number) => {
+  const directory = directroyId !== "root" ? await getDirectory(userId, directroyId) : undefined;
+  if (directory === null) {
+    error(404, "Invalid directory id");
+  }
+
+  const directories = await getAllDirectoriesByParent(userId, directroyId);
+  const files = await getAllFilesByParent(userId, directroyId);
+
+  return {
+    metadata: directory && {
+      createdAt: directory.createdAt,
+      mekVersion: directory.mekVersion,
+      encDek: directory.encDek,
+      encName: directory.encName,
+    },
+    directories: directories.map(({ id }) => id),
+    files: files.map(({ id }) => id),
+  };
+};
+
+export const createDirectory = async (params: NewDirectroyParams) => {
+  const activeMekVersion = await getActiveMekVersion(params.userId);
+  if (activeMekVersion === null) {
+    error(500, "Invalid MEK version");
+  } else if (activeMekVersion !== params.mekVersion) {
+    error(400, "Invalid MEK version");
+  }
+
+  await registerNewDirectory(params);
+};

src/lib/server/services/file.ts

@@ -5,48 +5,27 @@ import { mkdir, stat, unlink } from "fs/promises";
 import { dirname } from "path";
 import { v4 as uuidv4 } from "uuid";
 import {
-  getAllDirectoriesByParent,
-  registerNewDirectory,
-  getDirectory,
   registerNewFile,
-  getAllFilesByParent,
   getFile,
-  type NewDirectroyParams,
+  setFileEncName,
+  unregisterFile,
   type NewFileParams,
 } from "$lib/server/db/file";
 import { getActiveMekVersion } from "$lib/server/db/mek";
 import env from "$lib/server/loadenv";
 
-export const getDirectroyInformation = async (userId: number, directroyId: "root" | number) => {
-  const directory = directroyId !== "root" ? await getDirectory(userId, directroyId) : undefined;
-  if (directory === null) {
-    error(404, "Invalid directory id");
+export const deleteFile = async (userId: number, fileId: number) => {
+  const file = await getFile(userId, fileId);
+  if (!file) {
+    error(404, "Invalid file id");
   }
 
-  const directories = await getAllDirectoriesByParent(userId, directroyId);
-  const files = await getAllFilesByParent(userId, directroyId);
-
-  return {
-    metadata: directory && {
-      createdAt: directory.createdAt,
-      mekVersion: directory.mekVersion,
-      encDek: directory.encDek,
-      encName: directory.encName,
-    },
-    directories: directories.map(({ id }) => id),
-    files: files.map(({ id }) => id),
-  };
-};
-
-export const createDirectory = async (params: NewDirectroyParams) => {
-  const activeMekVersion = await getActiveMekVersion(params.userId);
-  if (activeMekVersion === null) {
-    error(500, "Invalid MEK version");
-  } else if (activeMekVersion !== params.mekVersion) {
-    error(400, "Invalid MEK version");
+  const path = await unregisterFile(userId, fileId);
+  if (!path) {
+    error(500, "Invalid file id");
   }
 
-  await registerNewDirectory(params);
+  unlink(path); // Intended
 };
 
 const convertToReadableStream = (readStream: ReadStream) => {
@@ -75,6 +54,20 @@ export const getFileStream = async (userId: number, fileId: number) => {
   };
 };
 
+export const renameFile = async (
+  userId: number,
+  fileId: number,
+  newEncName: string,
+  newEncNameIv: string,
+) => {
+  const file = await getFile(userId, fileId);
+  if (!file) {
+    error(404, "Invalid file id");
+  }
+
+  await setFileEncName(userId, fileId, newEncName, newEncNameIv);
+};
+
 export const getFileInformation = async (userId: number, fileId: number) => {
   const file = await getFile(userId, fileId);
   if (!file) {

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

@@ -2,7 +2,7 @@ import { error, json } from "@sveltejs/kit";
 import { z } from "zod";
 import { authorize } from "$lib/server/modules/auth";
 import { directroyInfoResponse, type DirectroyInfoResponse } from "$lib/server/schemas";
-import { getDirectroyInformation } from "$lib/server/services/file";
+import { getDirectroyInformation } from "$lib/server/services/directory";
 import type { RequestHandler } from "./$types";
 
 export const GET: RequestHandler = async ({ cookies, params }) => {

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

@@ -0,0 +1,20 @@
+import { error, text } from "@sveltejs/kit";
+import { z } from "zod";
+import { authorize } from "$lib/server/modules/auth";
+import { deleteDirectory } from "$lib/server/services/directory";
+import type { RequestHandler } from "./$types";
+
+export const POST: RequestHandler = async ({ cookies, params }) => {
+  const { userId } = await authorize(cookies, "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 deleteDirectory(userId, id);
+  return text("Directory deleted", { headers: { "Content-Type": "text/plain" } });
+};

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

@@ -0,0 +1,27 @@
+import { error, text } from "@sveltejs/kit";
+import { z } from "zod";
+import { authorize } from "$lib/server/modules/auth";
+import { parseSignedRequest } from "$lib/server/modules/crypto";
+import { directoryRenameRequest } from "$lib/server/schemas";
+import { renameDirectory } from "$lib/server/services/directory";
+import type { RequestHandler } from "./$types";
+
+export const POST: RequestHandler = async ({ request, cookies, params }) => {
+  const { userId, clientId } = await authorize(cookies, "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 { name, nameIv } = await parseSignedRequest(
+    clientId,
+    await request.json(),
+    directoryRenameRequest,
+  );
+
+  await renameDirectory(userId, id, name, nameIv);
+  return text("Directory renamed", { headers: { "Content-Type": "text/plain" } });
+};

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

@@ -2,7 +2,7 @@ import { text } from "@sveltejs/kit";
 import { authorize } from "$lib/server/modules/auth";
 import { parseSignedRequest } from "$lib/server/modules/crypto";
 import { directoryCreateRequest } from "$lib/server/schemas";
-import { createDirectory } from "$lib/server/services/file";
+import { createDirectory } from "$lib/server/services/directory";
 import type { RequestHandler } from "./$types";
 
 export const POST: RequestHandler = async ({ request, cookies }) => {

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

@@ -0,0 +1,20 @@
+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 ({ cookies, params }) => {
+  const { userId } = await authorize(cookies, "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

@@ -0,0 +1,27 @@
+import { error, text } from "@sveltejs/kit";
+import { z } from "zod";
+import { authorize } from "$lib/server/modules/auth";
+import { parseSignedRequest } from "$lib/server/modules/crypto";
+import { fileRenameRequest } from "$lib/server/schemas";
+import { renameFile } from "$lib/server/services/file";
+import type { RequestHandler } from "./$types";
+
+export const POST: RequestHandler = async ({ request, cookies, params }) => {
+  const { userId, clientId } = await authorize(cookies, "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 { name, nameIv } = await parseSignedRequest(
+    clientId,
+    await request.json(),
+    fileRenameRequest,
+  );
+
+  await renameFile(userId, id, name, nameIv);
+  return text("File renamed", { headers: { "Content-Type": "text/plain" } });
+};