tianta/server.js

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const http = require('http');
const fs = require('fs/promises');
const fss = require('fs');
const path = require('path');
const name = (() => {
const data = fss.readFileSync('./project/data.js', 'utf-8');
const json = JSON.parse(
data
.split(/(\n|\r\n)/)
.slice(1)
.join('\n')
);
return json.firstData.name;
})();
/** 核心服务器 */
const server = http.createServer();
/** 是否需要重新加载浏览器 */
let needReload = true;
/** 热重载信息 */
let hotReloadData = '';
/** 是否已经启动了热重载模块 */
let watched = false;
/** 是否已经启动了录像调试模块 */
let replayed = false;
/** 监听端口 */
let port = 3000;
const next = () => {
server.listen(port, '127.0.0.1');
server.on('error', () => {
console.log(`${port}端口已被占用`);
port++;
next();
});
};
next();
let repStart;
const listenedFloors = [];
// ----- GET file
/**
* 请求文件
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
* @param {string} path
*/
async function getFile(req, res, path) {
try {
const data = await fs.readFile(path);
if (path.endsWith('.js'))
res.writeHead(200, { 'Content-type': 'text/javascript' });
if (path.endsWith('.css'))
res.writeHead(200, { 'Content-type': 'text/css' });
if (path.endsWith('.html'))
res.writeHead(200, { 'Content-type': 'text/html' });
return res.end(data), true;
} catch {
return false;
}
}
/**
* 高层塔优化及动画加载
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
* @param {string[]} ids
* @param {string} suffix 后缀名
* @param {string} dir 文件夹路径
* @param {string} join 分隔符
*/
async function getAll(req, res, ids, suffix, dir, join) {
let data = {};
const tasks = ids.map(v => {
return new Promise(res => {
const d = path.resolve(__dirname, `${dir}${v}${suffix}`);
try {
fs.readFile(d).then(vv => {
data[v] = vv;
res(`${v} pack success.`);
});
} catch {
throw new ReferenceError(`The file ${d} does not exists.`);
}
});
});
await Promise.all(tasks);
const result = ids.map(v => data[v]);
return res.end(result.join(join)), true;
}
// ----- 样板的fs功能
/**
* 获取POST的数据
* @param {http.IncomingMessage} req
*/
async function getPostData(req) {
let data = '';
await new Promise(res => {
req.on('data', chunk => {
data += chunk.toString();
});
req.on('end', res);
});
return data;
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function readDir(req, res) {
const data = await getPostData(req);
const dir = path.resolve(__dirname, data.toString().slice(5));
try {
const info = await fs.readdir(dir);
res.end(JSON.stringify(info));
} catch (e) {
console.error(e);
res.end(`error: Read dir ${dir} fail. Does the dir exists?`);
}
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function mkdir(req, res) {
const data = await getPostData(req);
const dir = path.resolve(__dirname, data.toString().slice(5));
try {
await fs.mkdir(dir);
} catch (e) {}
res.end();
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function readFile(req, res) {
const data = (await getPostData(req)).toString();
const dir = path.resolve(__dirname, data.split('&name=')[1]);
try {
const type = /^type=(utf8|base64)/.exec(data)[0];
const info = await fs.readFile(dir, { encoding: type.slice(5) });
res.end(info);
} catch (e) {
res.end();
}
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function writeFile(req, res) {
const data = (await getPostData(req)).toString();
const name = data.split('&name=')[1].split('&value=')[0];
const dir = path.resolve(__dirname, name);
try {
const type = /^type=(utf8|base64)/.exec(data)[0].slice(5);
const value = /&value=[^]+/.exec(data)[0].slice(7);
await fs.writeFile(dir, value, { encoding: type });
testWatchFloor(name);
} catch (e) {
console.error(e);
res.end(
`error: Write file ${dir} fail. Does the parent folder exists?`
);
}
res.end();
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function rm(req, res) {
const data = (await getPostData(req)).toString();
const dir = path.resolve(__dirname, data.slice(5));
try {
await fs.rm(dir);
} catch (e) {
console.error(e);
res.end(`error: Remove file ${dir} fail. Does this file exists?`);
}
res.end();
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function moveFile(req, res) {
const data = (await getPostData(req)).toString();
const info = data.split('&dest=');
const src = path.resolve(__dirname, info[0].slice(4));
const dest = info[1];
try {
const data = await fs.readFile(src);
await fs.writeFile(path.resolve(__dirname, dest), data);
await fs.rm(src);
} catch (e) {
console.error(e);
res.end(`error: Move file ${dir} fail.`);
}
res.end();
}
/**
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function writeMultiFiles(req, res) {
const data = (await getPostData(req)).toString();
const names = /name=[^]+&value=/.exec(data)[0].slice(5, -7).split(';');
const value = /&value=[^]+/.exec(data)[0].slice(7).split(';');
const tasks = names.map((v, i) => {
try {
return new Promise(res => {
fs.writeFile(
path.resolve(__dirname, v),
value[i],
'base64' // 多文件是base64写入的
).then(v => {
testWatchFloor(v);
res(`write ${v} success.`);
});
});
} catch {
console.error(e);
res.end(`error: Write multi files fail.`);
}
});
await Promise.all(tasks);
res.end();
}
// ----- extract path & utils
/**
* 解析路径
* @param {...string} dirs
* @returns {Promise<string[]>}
*/
async function extract(...dirs) {
const res = [];
const tasks = dirs.map(v => {
return new Promise(resolve => {
if (v.endsWith('/')) {
// 匹配路径
const dir = path.resolve(__dirname, v.slice(0, -1));
fs.readdir(dir).then(files => {
const all = files
.filter(v => v !== 'thirdparty') // 排除第三方库
.map(vv => v + vv);
res.push(...all);
resolve('success');
});
} else if (/\/\*.\w+$/.test(v)) {
// 匹配文件夹中的后缀名
const suffix = /\.\w+$/.exec(v)[0];
const d = v.split(`/*${suffix}`)[0];
const dir = path.resolve(__dirname, d);
fs.readdir(dir).then(files => {
const all = files
.filter(v => v.endsWith(suffix))
.map(v => `${d === '' ? '' : d + '/'}${v}`);
res.push(...all);
resolve('success');
});
} else {
res.push(v);
resolve('success');
}
});
});
await Promise.all(tasks);
return res;
}
// ----- hot reload
/**
* 监听文件变化
*/
async function watch() {
// 需要重新加载的文件
const refresh = await extract('main.js', 'index.html', 'libs/');
const option = {
interval: 1000
};
refresh.forEach(v => {
const dir = path.resolve(__dirname, v);
fss.watchFile(dir, option, () => {
needReload = true;
console.log(`change: ${v}`);
});
});
// css 热重载
const css = await extract('/*.css');
css.forEach(v => {
const dir = path.resolve(__dirname, v);
fss.watchFile(dir, option, () => {
hotReloadData += `@@css:${v}`;
console.log(`css hot reload: ${v}`);
});
});
// 楼层 热重载
// 注意这里要逐个监听,并通过创建文件来监听文件改变
const floors = await extract('project/floors/*.js');
floors.forEach(v => {
watchOneFloor(v.slice(15));
});
// 脚本编辑 及 插件 热重载
const scripts = await extract('project/functions.js', 'project/plugins.js');
scripts.forEach(v => {
const dir = path.resolve(__dirname, v);
const type = v.split('/').at(-1).slice(0, -3);
fss.watchFile(dir, option, () => {
hotReloadData += `@@script:${type}`;
console.log(`script hot reload: ${type}.js`);
});
});
// 数据热重载
const datas = (await extract('project/*.js')).filter(
v => !v.endsWith('functions.js') && !v.endsWith('plugins.js')
);
datas.forEach(v => {
const dir = path.resolve(__dirname, v);
const type = v.split('/').at(-1).slice(0, -3);
fss.watchFile(dir, option, () => {
hotReloadData += `@@data:${type}`;
console.log(`data hot reload: ${type}`);
});
});
}
/**
* 检测是否是楼层文件并进行监听
* @param {string} url 要测试的路径
*/
function testWatchFloor(url) {
if (/project(\/|\\)floors(\/|\\).*\.js/.test(url)) {
const f = url.slice(15);
if (!listenedFloors.includes(f.slice(0, -3))) {
watchOneFloor(f);
}
}
}
/**
* 监听一个楼层文件
* @param {string} file 要监听的文件
*/
function watchOneFloor(file) {
if (!/.*\.js/.test(file)) return;
const f = file.slice(0, -3);
listenedFloors.push(file.slice(0, -3));
fss.watchFile(`project/floors/${file}`, { interval: 1000 }, () => {
const floorId = f;
if (hotReloadData.includes(`@@floor:${floorId}`)) return;
hotReloadData += `@@floor:${floorId}`;
console.log(`floor hot reload: ${floorId}`);
});
}
/**
* 修改部分文件后重新加载及热重载
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
function reload(req, res, hot = false) {
req.on('data', chunk => {
if (chunk.toString() === 'test' && !watched) {
watch();
watched = true;
console.log(`服务器热重载模块已开始服务`);
}
});
req.on('end', () => {
if (!hot) {
res.end(`${needReload}`);
needReload = false;
} else {
res.end(hotReloadData);
hotReloadData = '';
}
});
}
// ----- replay debugger
/**
* 录像调试
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
function replay(req, res) {
req.on('data', async chunk => {
if (chunk.toString() === 'test' && !replayed) {
replayed = true;
try {
await fs.mkdir(path.resolve(__dirname, '_replay'));
await fs.mkdir(path.resolve(__dirname, '_replay/status'));
await fs.mkdir(path.resolve(__dirname, '_replay/save'));
} catch {}
try {
await fs.readFile(
path.resolve(__dirname, '_replay/.info'),
'utf-8'
);
} catch {
await fs.writeFile(
path.resolve(__dirname, '_replay/.info'),
`{
"cnt": 0
}`,
'utf-8'
);
}
const data = fss.readFileSync(
path.resolve(__dirname, '_replay/.info'),
'utf-8'
);
repStart = Number(JSON.parse(data).cnt);
console.log(`服务器录像调试模块已开始服务`);
}
});
req.on('end', () => {
res.end();
});
}
/**
* 获取未占用的状态栏位
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function replayCnt() {
const data = `{
"cnt": ${++repStart}
}`;
fss.writeFileSync(path.resolve(__dirname, '_replay/.info'), data, 'utf-8');
return repStart;
}
/**
* 写入
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function replayWrite(req, res) {
const data = await getPostData(req);
const n = await replayCnt();
if (isNaN(n)) res.end('@error');
await Promise.all([
fs.writeFile(
path.resolve(__dirname, '_replay/.info'),
`{
"cnt": ${n + 1}
}`,
'utf-8'
),
fs.writeFile(
path.resolve(__dirname, `_replay/status/${n}.rep`),
data,
'utf-8'
)
]);
res.end(n.toString());
}
/**
* 比对录像与本地数据
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function replayCheck(req, res) {
const ans = await getPostData(req);
const [n, data] = ans.split('@-|-@');
const local = (
await fs.readFile(
path.resolve(__dirname, `_replay/status/${n}.rep`),
'utf-8'
)
)
.split('@---@')
.map(v => JSON.parse(v));
const rep = data.split('@---@').map(v => JSON.parse(v));
if (local.length !== rep.length) return res.end('false');
const check = (a, b) => {
if (a === b) return true;
if (typeof a !== typeof b) return false;
if (typeof a === 'object' && a !== null) {
for (const j in a) {
if (j === 'statistics' || j === 'timeout') continue; // 忽略统计信息
const aa = a[j];
const bb = b[j];
if (!check(aa, bb)) {
return false;
}
}
return true;
}
if (
typeof a === 'boolean' ||
typeof a === 'number' ||
typeof a === 'string' ||
typeof a === 'symbol' ||
typeof a === 'undefined' ||
typeof a === 'bigint' ||
a === null
) {
return a === b;
}
return true;
};
for (let i = 0; i < local.length; i++) {
const a = local[i];
const b = rep[i];
if (!check(a, b)) return res.end('false');
}
res.end('true');
}
/**
* 获取本地属性
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function replayGet(req, res, dir) {
const ans = Number(await getPostData(req));
const data = await fs.readFile(
path.resolve(__dirname, `_replay/${dir}/${ans}.rep`)
);
res.end(data);
}
/**
* 录像回放存档
* @param {http.IncomingMessage} req
* @param {http.ServerResponse<http.IncomingMessage> & {req: http.IncomingMessage;}} res
*/
async function replaySave(req, res) {
const data = await getPostData(req);
const [cnt, save] = data.split('@-|-@');
if (isNaN(Number(cnt))) {
console.log('Invalid input of save cnt');
res.end('@error: 不合法的录像存档信息');
}
await fs.writeFile(
path.resolve(__dirname, `_replay/save/${cnt}.rep`),
save,
'utf-8'
);
res.end('success');
}
// ----- server
server.on('listening', () => {
console.log(`服务已启动编辑器地址http://127.0.0.1:${port}/editor.html`);
console.log(`游戏地址http://127.0.0.1:${port}`);
});
// 处理请求
server.on('request', async (req, res) => {
/** @type {string} */
const p = req.url.replace(`/games/${name}`, '').replace('/all/', '/');
if (req.method === 'GET') {
const dir = path
.resolve(__dirname, p === '/' ? 'index.html' : p.slice(1))
.split('?v=')[0];
if (await getFile(req, res, dir)) return;
if (p.startsWith('/__all_floors__.js')) {
const all = p.split('&id=')[1].split(',');
res.writeHead(200, { 'Content-type': 'text/javascript' });
return await getAll(req, res, all, '.js', 'project/floors/', '\n');
}
if (p.startsWith('/__all_animates__')) {
const all = p.split('&id=')[1].split(',');
return await getAll(
req,
res,
all,
'.animate',
'project/animates/',
'@@@~~~###~~~@@@'
);
}
}
if (req.method === 'POST') {
if (p === '/listFile') return await readDir(req, res);
if (p === '/makeDir') return await mkdir(req, res);
if (p === '/readFile') return await readFile(req, res);
if (p === '/writeFile') return await writeFile(req, res);
if (p === '/deleteFile') return await rm(req, res);
if (p === '/moveFile') return await moveFile(req, res);
if (p === '/writeMultiFiles') return await writeMultiFiles(req, res);
if (p === '/reload') return reload(req, res);
if (p === '/hotReload') return reload(req, res, true);
if (p === '/replay') return replay(req, res);
if (p === '/replayWrite') return await replayWrite(req, res);
if (p === '/replayCheck') return await replayCheck(req, res);
if (p === '/replayGet') return await replayGet(req, res, 'status');
if (p === '/replaySave') return await replaySave(req, res);
if (p === '/replayGetSave') return await replayGet(req, res, 'save');
}
res.statusCode = 404;
res.end();
});