Files
music-repo/packages/backend/src/app.ts

411 lines
9.7 KiB
TypeScript

import cors from "@elysiajs/cors";
import { AttachmentId, PieceId, RequestId, SessionId, Sha256 } from "common";
import * as Function from "common/Function";
import { Elysia, error, form, t } from "elysia";
import { sql } from "kysely";
import { generateSessionId, initDatabase } from "./database";
const tbranded = <T>() => t.Transform(t.String())
.Decode(Function.unsafeCoerce<string, T>)
.Encode(Function.unsafeCoerce<T, string>);
const app = new Elysia()
.use(cors({ origin: "localhost:5173" }))
.decorate("db", await initDatabase())
.resolve(async ({ db, cookie }) => {
await db
.deleteFrom("Session")
.where(sql`datetime()`, ">=", "expiresAt")
.execute();
const sessionId = cookie.sessionId.value;
if (sessionId === undefined) {
return { user: null };
}
const res = await db
.updateTable("Session")
.set({ expiresAt: sql`datetime('now', '+7 days') `})
.where("sessionId", "=", SessionId(sessionId))
.returning(["userId"])
.executeTakeFirst();
if (res === undefined) {
return { user: null };
}
const user = await db
.selectFrom("User")
.selectAll()
.where("userId", "=", res.userId)
.executeTakeFirst();
if (user === undefined) {
return { user: null };
}
return { user };
})
.onTransform(async ({ db, request, server }) => {
const requestId = RequestId(Bun.randomUUIDv7("hex"));
const timestamp = new Date().toISOString();
const { method } = request;
const url = new URL(request.url);
const { pathname } = url;
const query = JSON.stringify(Object.fromEntries(url.searchParams.entries()));
const ip = server?.requestIP(request)?.address ?? null;
await db
.insertInto("AccessLog")
.values({ requestId, timestamp, method, pathname, query, ip })
.execute();
console.log(`${timestamp} ${method} ${request.url} ${ip}`);
})
// --- MARK: AUTHENTICATION ------------------------------------------------
.get("/me", async ({ user }) => {
if (user === null) {
return error("Unauthorized");
}
return {
userId: user.userId,
username: user.username,
admin: user.admin !== 0,
};
})
.post("/login", async ({ db, body: { username, password }, cookie }) => {
const user = await db
.selectFrom("User")
.selectAll()
.where("username", "=", username)
.executeTakeFirst();
if (user === undefined) {
return error("Unauthorized", "Invalid username or password");
}
const valid = await Bun.password.verify(password, user.password);
if (!valid) {
return error("Unauthorized", "Invalid username or password");
}
const sessionId = generateSessionId();
await db
.insertInto("Session")
.values({ sessionId, userId: user.userId, expiresAt: sql`datetime('now', '+7 days')` })
.execute();
const expiresAt = new Date().getTime() + 604800000;
cookie.sessionId.set({
value: sessionId,
expires: new Date(expiresAt),
httpOnly: true,
sameSite: "none",
secure: true,
});
return {
userId: user.userId,
username: user.username,
admin: user.admin !== 0,
};
}, {
body: t.Object({
username: t.String({ minLength: 1 }),
password: t.String({ minLength: 1 }),
}),
})
.post("/logout", async ({ db, cookie, set }) => {
set.status = "No Content";
const sessionCookie = cookie.sessionId;
sessionCookie.remove();
const sessionId = sessionCookie.value;
if (sessionId === undefined) {
return;
}
await db
.deleteFrom("Session")
.where("sessionId", "=", SessionId(sessionId))
.execute();
})
// --- MARK: PIECE CRUD ----------------------------------------------------
.post("/piece", async ({ db, body: { name, composer, lyricist, arranger }, user }) => {
if (user === null) {
return error("Unauthorized");
}
const pieceId = PieceId(Bun.randomUUIDv7());
const res = await db
.insertInto("Piece")
.values({ pieceId, name, composer, lyricist, arranger, createdBy: user.userId, createdAt: sql`datetime()` })
.returningAll()
.executeTakeFirstOrThrow();
return res;
}, {
body: t.Object({
name: t.String({ minLength: 1 }),
composer: t.Nullable(t.String({ minLength: 1 })),
lyricist: t.Nullable(t.String({ minLength: 1 })),
arranger: t.Nullable(t.String({ minLength: 1 })),
}),
})
.get("/piece", async ({ db, query, user }) => {
if (user === null) {
return error("Unauthorized");
}
let q = db
.selectFrom("Piece")
.selectAll()
.orderBy(["name", "composer", "arranger"])
.limit(100);
if (query.id !== undefined) {
q = q.where("pieceId", "=", query.id);
}
const res = await q.execute();
return res;
}, {
query: t.Object({
id: t.Optional(tbranded<PieceId>()),
}),
})
.put("/piece/:pieceId", async ({ db, body: { name, composer, lyricist, arranger }, params: { pieceId }, user }) => {
if (user === null) {
return error("Unauthorized");
}
const res = await db
.updateTable("Piece")
.set({ name, composer, lyricist, arranger, modifiedBy: user.userId, modifiedAt: sql`datetime()` })
.where("pieceId", "=", pieceId)
.returningAll()
.execute();
if (res.length === 0) {
return error("Not Found");
}
return res[0];
}, {
body: t.Object({
name: t.String({ minLength: 1 }),
composer: t.Nullable(t.String({ minLength: 1 })),
lyricist: t.Nullable(t.String({ minLength: 1 })),
arranger: t.Nullable(t.String({ minLength: 1 })),
}),
params: t.Object({
pieceId: tbranded<PieceId>(),
})
})
.delete("/piece/:pieceId", async ({ db, params: { pieceId }, set, user }) => {
if (user === null) {
return error("Unauthorized");
}
const res = await db
.deleteFrom("Piece")
.where("pieceId", "=", pieceId)
.returningAll()
.execute();
if (res.length === 0) {
return error("Not Found");
}
set.status = "No Content";
}, {
params: t.Object({
pieceId: tbranded<PieceId>(),
}),
})
// --- MARK: ATTACHMENT CRUD -----------------------------------------------
.post("piece/:pieceId/attachment", async ({ db, body: { filename, mediaType, data }, params: { pieceId }, user }) => {
if (user === null) {
return error("Unauthorized");
}
const attachmentId = AttachmentId(Bun.randomUUIDv7());
const dataArray = new Uint8Array(await data.arrayBuffer());
const sha256 = Sha256(new Uint8Array(Bun.SHA256.byteLength));
Bun.SHA256.hash(dataArray, sha256);
await db
.insertInto("File")
.values({ sha256, data: dataArray })
.onConflict((cb) => cb.column("sha256").doNothing())
.execute();
const res = await db
.insertInto("Attachment")
.values({ attachmentId, pieceId, sha256, filename, mediaType, createdBy: user.userId, createdAt: sql`datetime()` })
.returningAll()
.executeTakeFirstOrThrow();
return res;
}, {
body: t.Object({
filename: t.String({ minLength: 1 }),
mediaType: t.String({ minLength: 1 }),
data: t.File(),
}),
params: t.Object({
pieceId: tbranded<PieceId>(),
}),
})
.get("piece/:pieceId/attachment", async ({ db, params: { pieceId }, user }) => {
if (user === null) {
return error("Unauthorized");
}
const res = await db
.selectFrom("Attachment")
.selectAll()
.where("pieceId", "=", pieceId)
.orderBy("filename")
.execute();
return res;
}, {
params: t.Object({
pieceId: tbranded<PieceId>(),
}),
})
/* NOTE The piece ID is reduntant, because attachment IDs are unique for the
* entire DB, not just per piece. However, we consider a piece to be the
* sole owner of an attachment, i.e. attachments are not shared (attachments
* are deduplicated on file storage level by their SHA-256 hash). Thus, we
* reflect the ownership in the URLs.
*/
.get("piece/:pieceId/attachment/:attachmentId", async ({ db, params: { pieceId, attachmentId }, user }) => {
if (user === null) {
return error("Unauthorized");
}
const res = await db
.selectFrom("File")
.innerJoin("Attachment", "File.sha256", "Attachment.sha256")
.select(["Attachment.filename", "Attachment.mediaType", "File.data"])
.where((eb) => eb.and([
eb("Attachment.pieceId", "=", pieceId),
eb("Attachment.attachmentId", "=", attachmentId),
]))
.executeTakeFirst();
if (res === undefined) {
return error("Not Found");
}
return form({
filename: res.filename,
mediaType: res.mediaType,
data: new File([res.data], res.filename, { type: res.mediaType }),
});
}, {
params: t.Object({
pieceId: tbranded<PieceId>(),
attachmentId: tbranded<AttachmentId>(),
}),
})
.put("piece/:pieceId/attachment/:attachmentId", async ({ db, body: { filename }, params: { pieceId, attachmentId }, user }) => {
if (user === null) {
return error("Unauthorized");
}
const res = await db
.updateTable("Attachment")
.set({ filename, modifiedBy: user.userId, modifiedAt: sql`datetime()` })
.where((eb) => eb.and([
eb("pieceId", "=", pieceId),
eb("attachmentId", "=", attachmentId),
]))
.returningAll()
.execute();
if (res.length === 0) {
return error("Not Found");
}
return res[0];
}, {
body: t.Object({
filename: t.String({ minLength: 1 }),
}),
params: t.Object({
pieceId: tbranded<PieceId>(),
attachmentId: tbranded<AttachmentId>(),
}),
})
.delete("piece/:pieceId/attachment/:attachmentId", async ({ db, params: { pieceId, attachmentId }, set, user }) => {
if (user === null) {
return error("Unauthorized");
}
const res = await db
.deleteFrom("Attachment")
.where((eb) => eb.and([
eb("pieceId", "=", pieceId),
eb("attachmentId", "=", attachmentId),
]))
.returningAll()
.execute();
if (res.length === 0) {
return error("Not Found");
}
set.status = "No Content";
}, {
params: t.Object({
pieceId: tbranded<PieceId>(),
attachmentId: tbranded<AttachmentId>(),
}),
})
// -------------------------------------------------------------------------
.listen(process.env.PORT || 3000);
export type App = typeof app;