Files
liberama/server/routes.js
2022-12-18 13:22:55 +07:00

140 lines
4.1 KiB
JavaScript

const fs = require('fs-extra');
const express = require('express');
const multer = require('multer');
const ReaderWorker = require('./core/Reader/ReaderWorker');//singleton
const log = new (require('./core/AppLogger'))().log;//singleton
const {
ReaderController,
WebSocketController,
BookUpdateCheckerController,
} = require('./controllers');
const utils = require('./core/utils');
function initRoutes(app, wss, config) {
//эксклюзив для update_checker
if (config.mode === 'book_update_checker') {
new BookUpdateCheckerController(wss, config);
return;
}
if (config.mode !== 'reader' && config.mode !== 'omnireader' && config.mode !== 'liberama')
throw new Error(`Unknown server mode: ${config.mode}`);
initStatic(app, config);
const reader = new ReaderController(config);
new WebSocketController(wss, config);
//multer
const storage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, config.uploadPublicDir);
},
filename: (req, file, cb) => {
cb(null, utils.randomHexString(30));
}
});
const upload = multer({ storage, limits: {fileSize: config.maxUploadFileSize} });
//routes
const routes = [
['POST', '/api/reader/upload-file', [upload.single('file'), reader.uploadFile.bind(reader)]],
];
//to app
for (let route of routes) {
let callbacks = [];
let [httpMethod, actionPath, controllers] = route;
let controller = controllers;
if (Array.isArray(controllers)) {
controller = controllers[controllers.length - 1];
callbacks = controllers.slice(0, -1);
}
const callback = async function(req, res) {
try {
const result = await controller(req, res);
if (result !== false)
res.send(result);
} catch (e) {
res.status(500).send({error: e.message});
}
};
callbacks.push(callback);
switch (httpMethod) {
case 'GET' :
app.get(actionPath, ...callbacks);
break;
case 'POST':
app.post(actionPath, ...callbacks);
break;
default:
throw new Error(`initRoutes error: unknown httpMethod: ${httpMethod}`);
}
}
}
function initStatic(app, config) {
const readerWorker = new ReaderWorker(config);
//восстановление файлов в /tmp и /upload из webdav-storage, при необходимости
app.use('/tmp',
async(req, res, next) => {
if (req.method !== 'GET' && req.method !== 'HEAD') {
return next();
}
const filePath = `${config.tempPublicDir}${req.path}`;
//восстановим
try {
if (!await fs.pathExists(filePath))
await readerWorker.restoreRemoteFile(req.path, '/tmp');
} catch(e) {
log(LM_ERR, `static::restoreRemoteFile ${filePath} > ${e.message}`);
}
return next();
},
express.static(config.tempPublicDir, {
setHeaders: (res) => {
res.set('Content-Type', 'application/xml');
res.set('Content-Encoding', 'gzip');
},
})
);
app.use('/upload',
async(req, res, next) => {
if (req.method !== 'GET' && req.method !== 'HEAD') {
return next();
}
const filePath = `${config.uploadPublicDir}${req.path}`;
//восстановим
try {
if (!await fs.pathExists(filePath))
await readerWorker.restoreRemoteFile(req.path, '/upload');
} catch(e) {
log(LM_ERR, `static::restoreRemoteFile ${filePath} > ${e.message}`);
}
return next();
},
express.static(config.uploadPublicDir)
);
app.use(express.static(config.publicDir));
}
module.exports = {
initRoutes
}