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This commit is contained in:
Zimeng Xiong
2025-11-21 22:06:12 -08:00
parent 0878b5e87f
commit 9ee9d6ccfe
9 changed files with 960 additions and 37 deletions
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backend/package-lock.json
Generated
+272 -4
View File
@@ -10,9 +10,11 @@
"license": "ISC",
"dependencies": {
"@prisma/client": "^5.22.0",
"@types/socket.io": "^3.0.1",
"cors": "^2.8.5",
"dotenv": "^17.2.3",
"express": "^5.1.0"
"express": "^5.1.0",
"socket.io": "^4.8.1"
},
"devDependencies": {
"@types/cors": "^2.8.19",
@@ -133,6 +135,12 @@
"@prisma/debug": "5.22.0"
}
},
"node_modules/@socket.io/component-emitter": {
"version": "3.1.2",
"resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.2.tgz",
"integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA==",
"license": "MIT"
},
"node_modules/@tsconfig/node10": {
"version": "1.0.12",
"resolved": "https://registry.npmjs.org/@tsconfig/node10/-/node10-1.0.12.tgz",
@@ -186,7 +194,6 @@
"version": "2.8.19",
"resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.19.tgz",
"integrity": "sha512-mFNylyeyqN93lfe/9CSxOGREz8cpzAhH+E93xJ4xWQf62V8sQ/24reV2nyzUWM6H6Xji+GGHpkbLe7pVoUEskg==",
"dev": true,
"license": "MIT",
"dependencies": {
"@types/node": "*"
@@ -235,7 +242,6 @@
"version": "24.10.1",
"resolved": "https://registry.npmjs.org/@types/node/-/node-24.10.1.tgz",
"integrity": "sha512-GNWcUTRBgIRJD5zj+Tq0fKOJ5XZajIiBroOF0yvj2bSU1WvNdYS/dn9UxwsujGW4JX06dnHyjV2y9rRaybH0iQ==",
"dev": true,
"license": "MIT",
"peer": true,
"dependencies": {
@@ -289,6 +295,15 @@
"@types/node": "*"
}
},
"node_modules/@types/socket.io": {
"version": "3.0.1",
"resolved": "https://registry.npmjs.org/@types/socket.io/-/socket.io-3.0.1.tgz",
"integrity": "sha512-XSma2FhVD78ymvoxYV4xGXrIH/0EKQ93rR+YR0Y+Kw1xbPzLDCip/UWSejZ08FpxYeYNci/PZPQS9anrvJRqMA==",
"license": "MIT",
"dependencies": {
"socket.io": "*"
}
},
"node_modules/accepts": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/accepts/-/accepts-2.0.0.tgz",
@@ -356,6 +371,15 @@
"dev": true,
"license": "MIT"
},
"node_modules/base64id": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/base64id/-/base64id-2.0.0.tgz",
"integrity": "sha512-lGe34o6EHj9y3Kts9R4ZYs/Gr+6N7MCaMlIFA3F1R2O5/m7K06AxfSeO5530PEERE6/WyEg3lsuyw4GHlPZHog==",
"license": "MIT",
"engines": {
"node": "^4.5.0 || >= 5.9"
}
},
"node_modules/binary-extensions": {
"version": "2.3.0",
"resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
@@ -620,6 +644,95 @@
"node": ">= 0.8"
}
},
"node_modules/engine.io": {
"version": "6.6.4",
"resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.6.4.tgz",
"integrity": "sha512-ZCkIjSYNDyGn0R6ewHDtXgns/Zre/NT6Agvq1/WobF7JXgFff4SeDroKiCO3fNJreU9YG429Sc81o4w5ok/W5g==",
"license": "MIT",
"dependencies": {
"@types/cors": "^2.8.12",
"@types/node": ">=10.0.0",
"accepts": "~1.3.4",
"base64id": "2.0.0",
"cookie": "~0.7.2",
"cors": "~2.8.5",
"debug": "~4.3.1",
"engine.io-parser": "~5.2.1",
"ws": "~8.17.1"
},
"engines": {
"node": ">=10.2.0"
}
},
"node_modules/engine.io-parser": {
"version": "5.2.3",
"resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.3.tgz",
"integrity": "sha512-HqD3yTBfnBxIrbnM1DoD6Pcq8NECnh8d4As1Qgh0z5Gg3jRRIqijury0CL3ghu/edArpUYiYqQiDUQBIs4np3Q==",
"license": "MIT",
"engines": {
"node": ">=10.0.0"
}
},
"node_modules/engine.io/node_modules/accepts": {
"version": "1.3.8",
"resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
"integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
"license": "MIT",
"dependencies": {
"mime-types": "~2.1.34",
"negotiator": "0.6.3"
},
"engines": {
"node": ">= 0.6"
}
},
"node_modules/engine.io/node_modules/debug": {
"version": "4.3.7",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.3.7.tgz",
"integrity": "sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==",
"license": "MIT",
"dependencies": {
"ms": "^2.1.3"
},
"engines": {
"node": ">=6.0"
},
"peerDependenciesMeta": {
"supports-color": {
"optional": true
}
}
},
"node_modules/engine.io/node_modules/mime-db": {
"version": "1.52.0",
"resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
"integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
"license": "MIT",
"engines": {
"node": ">= 0.6"
}
},
"node_modules/engine.io/node_modules/mime-types": {
"version": "2.1.35",
"resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
"integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
"license": "MIT",
"dependencies": {
"mime-db": "1.52.0"
},
"engines": {
"node": ">= 0.6"
}
},
"node_modules/engine.io/node_modules/negotiator": {
"version": "0.6.3",
"resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
"integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==",
"license": "MIT",
"engines": {
"node": ">= 0.6"
}
},
"node_modules/es-define-property": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
@@ -1456,6 +1569,141 @@
"node": ">=10"
}
},
"node_modules/socket.io": {
"version": "4.8.1",
"resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.8.1.tgz",
"integrity": "sha512-oZ7iUCxph8WYRHHcjBEc9unw3adt5CmSNlppj/5Q4k2RIrhl8Z5yY2Xr4j9zj0+wzVZ0bxmYoGSzKJnRl6A4yg==",
"license": "MIT",
"dependencies": {
"accepts": "~1.3.4",
"base64id": "~2.0.0",
"cors": "~2.8.5",
"debug": "~4.3.2",
"engine.io": "~6.6.0",
"socket.io-adapter": "~2.5.2",
"socket.io-parser": "~4.2.4"
},
"engines": {
"node": ">=10.2.0"
}
},
"node_modules/socket.io-adapter": {
"version": "2.5.5",
"resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.5.5.tgz",
"integrity": "sha512-eLDQas5dzPgOWCk9GuuJC2lBqItuhKI4uxGgo9aIV7MYbk2h9Q6uULEh8WBzThoI7l+qU9Ast9fVUmkqPP9wYg==",
"license": "MIT",
"dependencies": {
"debug": "~4.3.4",
"ws": "~8.17.1"
}
},
"node_modules/socket.io-adapter/node_modules/debug": {
"version": "4.3.7",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.3.7.tgz",
"integrity": "sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==",
"license": "MIT",
"dependencies": {
"ms": "^2.1.3"
},
"engines": {
"node": ">=6.0"
},
"peerDependenciesMeta": {
"supports-color": {
"optional": true
}
}
},
"node_modules/socket.io-parser": {
"version": "4.2.4",
"resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.4.tgz",
"integrity": "sha512-/GbIKmo8ioc+NIWIhwdecY0ge+qVBSMdgxGygevmdHj24bsfgtCmcUUcQ5ZzcylGFHsN3k4HB4Cgkl96KVnuew==",
"license": "MIT",
"dependencies": {
"@socket.io/component-emitter": "~3.1.0",
"debug": "~4.3.1"
},
"engines": {
"node": ">=10.0.0"
}
},
"node_modules/socket.io-parser/node_modules/debug": {
"version": "4.3.7",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.3.7.tgz",
"integrity": "sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==",
"license": "MIT",
"dependencies": {
"ms": "^2.1.3"
},
"engines": {
"node": ">=6.0"
},
"peerDependenciesMeta": {
"supports-color": {
"optional": true
}
}
},
"node_modules/socket.io/node_modules/accepts": {
"version": "1.3.8",
"resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.8.tgz",
"integrity": "sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==",
"license": "MIT",
"dependencies": {
"mime-types": "~2.1.34",
"negotiator": "0.6.3"
},
"engines": {
"node": ">= 0.6"
}
},
"node_modules/socket.io/node_modules/debug": {
"version": "4.3.7",
"resolved": "https://registry.npmjs.org/debug/-/debug-4.3.7.tgz",
"integrity": "sha512-Er2nc/H7RrMXZBFCEim6TCmMk02Z8vLC2Rbi1KEBggpo0fS6l0S1nnapwmIi3yW/+GOJap1Krg4w0Hg80oCqgQ==",
"license": "MIT",
"dependencies": {
"ms": "^2.1.3"
},
"engines": {
"node": ">=6.0"
},
"peerDependenciesMeta": {
"supports-color": {
"optional": true
}
}
},
"node_modules/socket.io/node_modules/mime-db": {
"version": "1.52.0",
"resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.52.0.tgz",
"integrity": "sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==",
"license": "MIT",
"engines": {
"node": ">= 0.6"
}
},
"node_modules/socket.io/node_modules/mime-types": {
"version": "2.1.35",
"resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.35.tgz",
"integrity": "sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==",
"license": "MIT",
"dependencies": {
"mime-db": "1.52.0"
},
"engines": {
"node": ">= 0.6"
}
},
"node_modules/socket.io/node_modules/negotiator": {
"version": "0.6.3",
"resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
"integrity": "sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==",
"license": "MIT",
"engines": {
"node": ">= 0.6"
}
},
"node_modules/statuses": {
"version": "2.0.2",
"resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.2.tgz",
@@ -1594,7 +1842,6 @@
"version": "7.16.0",
"resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
"integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
"dev": true,
"license": "MIT"
},
"node_modules/unpipe": {
@@ -1628,6 +1875,27 @@
"integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
"license": "ISC"
},
"node_modules/ws": {
"version": "8.17.1",
"resolved": "https://registry.npmjs.org/ws/-/ws-8.17.1.tgz",
"integrity": "sha512-6XQFvXTkbfUOZOKKILFG1PDK2NDQs4azKQl26T0YS5CxqWLgXajbPZ+h4gZekJyRqFU8pvnbAbbs/3TgRPy+GQ==",
"license": "MIT",
"engines": {
"node": ">=10.0.0"
},
"peerDependencies": {
"bufferutil": "^4.0.1",
"utf-8-validate": ">=5.0.2"
},
"peerDependenciesMeta": {
"bufferutil": {
"optional": true
},
"utf-8-validate": {
"optional": true
}
}
},
"node_modules/yn": {
"version": "3.1.1",
"resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
backend/package.json
+3 -1
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@@ -13,9 +13,11 @@
"type": "commonjs",
"dependencies": {
"@prisma/client": "^5.22.0",
"@types/socket.io": "^3.0.1",
"cors": "^2.8.5",
"dotenv": "^17.2.3",
"express": "^5.1.0"
"express": "^5.1.0",
"socket.io": "^4.8.1"
},
"devDependencies": {
"@types/cors": "^2.8.19",
backend/prisma/dev.db
BIN
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backend/src/index.ts
+86 -5
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@@ -2,6 +2,8 @@ import express from "express";
import cors from "cors";
import dotenv from "dotenv";
import path from "path";
import { createServer } from "http";
import { Server } from "socket.io";
// @ts-ignore
import { PrismaClient } from "./generated/client";
@@ -14,12 +16,94 @@ process.env.DATABASE_URL = `file:${dbPath}`;
console.log("Resolved DATABASE_URL:", process.env.DATABASE_URL);
const app = express();
const httpServer = createServer(app);
const io = new Server(httpServer, {
cors: {
origin: "*",
},
maxHttpBufferSize: 1e8, // 100 MB
});
const prisma = new PrismaClient();
const PORT = process.env.PORT || 8000;
app.use(cors());
app.use(express.json({ limit: "50mb" }));
// Socket.io Logic
interface User {
id: string;
name: string;
initials: string;
color: string;
socketId: string;
isActive: boolean;
}
const roomUsers = new Map<string, User[]>();
io.on("connection", (socket) => {
socket.on(
"join-room",
({
drawingId,
user,
}: {
drawingId: string;
user: Omit<User, "socketId" | "isActive">;
}) => {
const roomId = `drawing_${drawingId}`;
socket.join(roomId);
const newUser: User = { ...user, socketId: socket.id, isActive: true };
const currentUsers = roomUsers.get(roomId) || [];
const filteredUsers = currentUsers.filter((u) => u.id !== user.id);
filteredUsers.push(newUser);
roomUsers.set(roomId, filteredUsers);
io.to(roomId).emit("presence-update", filteredUsers);
}
);
socket.on("cursor-move", (data) => {
const roomId = `drawing_${data.drawingId}`;
// Use volatile for high-frequency, low-importance updates (cursors)
// If network is congested, drop these packets
socket.volatile.to(roomId).emit("cursor-move", data);
});
socket.on("element-update", (data) => {
const roomId = `drawing_${data.drawingId}`;
socket.to(roomId).emit("element-update", data);
});
socket.on(
"user-activity",
({ drawingId, isActive }: { drawingId: string; isActive: boolean }) => {
const roomId = `drawing_${drawingId}`;
const users = roomUsers.get(roomId);
if (users) {
const user = users.find((u) => u.socketId === socket.id);
if (user) {
user.isActive = isActive;
io.to(roomId).emit("presence-update", users);
}
}
}
);
socket.on("disconnect", () => {
roomUsers.forEach((users, roomId) => {
const index = users.findIndex((u) => u.socketId === socket.id);
if (index !== -1) {
users.splice(index, 1);
roomUsers.set(roomId, users);
io.to(roomId).emit("presence-update", users);
}
});
});
});
// --- Drawings ---
// GET /drawings
@@ -38,10 +122,7 @@ app.get("/drawings", async (req, res) => {
where.collectionId = String(collectionId);
} else {
// Default: Exclude trash, but include unorganized (null)
where.OR = [
{ collectionId: { not: "trash" } },
{ collectionId: null },
];
where.OR = [{ collectionId: { not: "trash" } }, { collectionId: null }];
}
const drawings = await prisma.drawing.findMany({
@@ -262,7 +343,7 @@ const ensureTrashCollection = async () => {
}
};
app.listen(PORT, async () => {
httpServer.listen(PORT, async () => {
await ensureTrashCollection();
console.log(`Server running on port ${PORT}`);
});