/usr/lib/nodejs/groovebasin/lib/groovebasin.js is in groovebasin 1.4.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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var http = require('http');
var https = require('https');
var assert = require('assert');
var WebSocketServer = require('ws').Server;
var fs = require('fs');
var yazl = require('yazl');
var util = require('util');
var path = require('path');
var Pend = require('pend');
var express = require('express');
var osenv = require('osenv');
var plugins = [
require('./plugins/lastfm'),
];
var Player = require('./player');
var PlayerServer = require('./player_server');
var MpdProtocol = require('./mpd_protocol');
var MpdApiServer = require('./mpd_api_server');
var WebSocketApiClient = require('./web_socket_api_client');
var leveldown = require('leveldown');
var net = require('net');
var safePath = require('./safe_path');
var MultipartForm = require('multiparty').Form;
var createGzipStatic = require('connect-static');
var serveStatic = require('serve-static');
var Cookies = require('cookies');
var log = require('./log');
var contentDisposition = require('content-disposition');
module.exports = GrooveBasin;
var defaultConfig = {
host: '0.0.0.0',
port: 16242,
dbPath: "groovebasin.db",
musicDirectory: path.join(osenv.home(), "music"),
lastFmApiKey: "bb9b81026cd44fd086fa5533420ac9b4",
lastFmApiSecret: "2309a40ae3e271de966bf320498a8f09",
mpdHost: '0.0.0.0',
mpdPort: 6600,
acoustidAppKey: 'bgFvC4vW',
encodeQueueDuration: 8,
sslKey: null,
sslCert: null,
};
util.inherits(GrooveBasin, EventEmitter);
function GrooveBasin() {
EventEmitter.call(this);
this.app = express();
}
GrooveBasin.prototype.initConfigVar = function(name, defaultValue) {
this.configVars.push(name);
this[name] = defaultValue;
};
GrooveBasin.prototype.loadConfig = function(cb) {
var self = this;
var pathToConfig = "config.json";
fs.readFile(pathToConfig, {encoding: 'utf8'}, function(err, contents) {
var anythingAdded = false;
var config;
if (err) {
if (err.code === 'ENOENT') {
anythingAdded = true;
self.config = defaultConfig;
log.warn("No " + pathToConfig + " found; writing default.");
} else {
return cb(err);
}
} else {
try {
self.config = JSON.parse(contents);
} catch (err) {
cb(new Error("Unable to parse " + pathToConfig + ": " + err.message));
return;
}
}
// this ensures that even old files get new config values when we add them
for (var key in defaultConfig) {
if (self.config[key] === undefined) {
anythingAdded = true;
self.config[key] = defaultConfig[key];
}
}
if (anythingAdded) {
fs.writeFile(pathToConfig, JSON.stringify(self.config, null, 4), cb);
} else {
cb();
}
});
};
GrooveBasin.prototype.start = function() {
var self = this;
if (process.argv.indexOf('--verbose') > 0) {
log.level = log.levels.Debug;
} else {
log.level = log.levels.Warn;
}
var pend = new Pend();
pend.go(function(cb) {
self.loadConfig(cb);
});
pend.go(function(cb) {
var options = {
dir: path.join(__dirname, "../public"),
aliases: [],
};
createGzipStatic(options, function(err, middleware) {
if (err) return cb(err);
self.app.use(middleware);
cb();
});
});
pend.go(function(cb) {
createGzipStatic({dir: path.join(__dirname, "../src/public")}, function(err, middleware) {
if (err) return cb(err);
self.app.use(middleware);
cb();
});
});
pend.wait(function(err) {
if (err) {
log.error(err.stack);
return;
}
pend.go(function(cb) {
self.db = leveldown(self.config.dbPath);
self.db.open(cb);
});
pend.wait(makePlayer);
});
function makePlayer(err) {
if (err) {
log.error(err.stack);
return;
}
self.httpHost = self.config.host;
self.httpPort = self.config.port;
if (process.argv.indexOf('--delete-all-users') > 0) {
// this will call process.exit when done
PlayerServer.deleteAllUsers(self.db);
return;
}
self.player = new Player(self.db, self.config.musicDirectory, self.config.encodeQueueDuration);
self.player.initialize(function(err) {
if (err) {
log.error("unable to initialize player:", err.stack);
return;
}
log.debug("Player initialization complete.");
var pend = new Pend();
plugins.forEach(function(PluginClass) {
var plugin = new PluginClass(self);
if (plugin.initialize) pend.go(plugin.initialize.bind(plugin));
});
pend.wait(function(err) {
if (err) {
log.error("Error initializing plugin:", err.stack);
return;
}
self.startServer();
});
});
}
};
GrooveBasin.prototype.initializeDownload = function() {
var self = this;
var musicDir = self.config.musicDirectory;
var serve = serveStatic(musicDir);
self.app.use('/library', serveStaticMiddleware);
self.app.get('/library/', self.hasPermRead, function(req, resp) {
downloadPath("", "library.zip", req, resp);
});
self.app.get(/^\/library\/(.*)\/$/, self.hasPermRead, function(req, resp){
var reqDir = req.params[0];
var zipName = safePath(reqDir.replace(/\//g, " - ")) + ".zip";
downloadPath(reqDir, zipName, req, resp);
});
self.app.get('/download/keys', self.hasPermRead, function(req, resp) {
var reqKeys = Object.keys(req.query);
var files = [];
var commonArtistName, commonAlbumName;
reqKeys.forEach(function(key) {
var dbFile = self.player.libraryIndex.trackTable[key];
if (!dbFile) return;
files.push(path.join(musicDir, dbFile.file));
if (commonAlbumName === undefined) commonAlbumName = dbFile.albumName || "";
else if (commonAlbumName !== dbFile.albumName) commonAlbumName = null;
if (commonArtistName === undefined) commonArtistName = dbFile.artistName || "";
else if (commonArtistName !== dbFile.artistName) commonArtistName = null;
});
var reqZipName = commonAlbumName || commonArtistName || "songs";
var zipName = safePath(reqZipName) + ".zip";
sendZipOfFiles(zipName, files, req, resp);
});
function downloadPath(dirName, zipName, req, resp) {
var files = [];
var dirEntry = self.player.dirs[dirName];
if (!dirEntry) {
resp.statusCode = 404;
resp.end("Not found");
return;
}
sendZipOfFiles(zipName, files, req, resp);
function addOneDir(dirEntry) {
var baseName, relPath;
for (baseName in dirEntry.entries) {
relPath = path.join(dirEntry.dirName, baseName);
var dbTrack = self.player.dbFilesByPath[relPath];
if (dbTrack) files.push(dbTrack.file);
}
for (baseName in dirEntry.dirEntries) {
relPath = path.join(dirEntry.dirName, baseName);
var childEntry = self.player.dirs[relPath];
if (childEntry) addOneDir(childEntry);
}
}
}
function sendZipOfFiles(zipName, files, req, resp) {
req.on('close', cleanupEverything);
resp.setHeader("Content-Type", "application/zip");
resp.setHeader("Content-Disposition", contentDisposition(zipName, {type: "attachment"}));
var zipfile = new yazl.ZipFile();
zipfile.on('error', function(err) {
log.error("Error while sending zip of files:", err.stack);
cleanupEverything();
});
files.forEach(function(file) {
zipfile.addFile(file, path.relative(self.config.musicDirectory, file), {compress: false});
});
zipfile.end(function(finalSize) {
resp.setHeader("Content-Length", finalSize.toString());
zipfile.outputStream.pipe(resp);
});
function cleanupEverything() {
resp.end();
}
}
function serveStaticMiddleware(req, res, next) {
self.hasPermRead(req, res, function() {
res.setHeader('Content-Disposition', 'attachment');
serve(req, res, function(err) {
res.removeHeader('Content-Disposition');
next(err);
});
});
}
};
GrooveBasin.prototype.initializeUpload = function() {
var self = this;
self.app.post('/upload', self.hasPermAdd, function(request, response, next) {
var form = new MultipartForm({
maxFields: 100000, // let them eat cake
autoFields: true,
});
var allDbFiles = [];
var pend = new Pend();
var autoQueue = false;
var size;
form.on('error', next);
form.on('part', function(part) {
pend.go(function(cb) {
log.debug("import part", part.filename);
self.player.importStream(part, part.filename, size, function(err, dbFiles) {
if (err) {
log.error("Unable to import stream:", err.stack);
} else if (!dbFiles) {
log.warn("Unable to import stream, unrecognized format");
} else {
allDbFiles = allDbFiles.concat(dbFiles);
}
log.debug("done importing part", part.filename);
cb();
});
});
});
form.on('field', function(name, value) {
if (name === 'autoQueue') {
autoQueue = true;
} else if (name === 'size') {
size = parseInt(value, 10);
}
});
form.on('close', function() {
pend.wait(function() {
if (allDbFiles.length >= 1) {
var user = request.client && request.client.user;
self.playerServer.addEvent(user, 'import', null, allDbFiles[0].key, allDbFiles.length);
if (autoQueue) {
self.player.sortAndQueueTracks(allDbFiles);
self.playerServer.addEvent(user, 'queue', null, allDbFiles[0].key, allDbFiles.length);
}
}
response.json({});
});
});
form.parse(request);
});
};
GrooveBasin.prototype.initializeStream = function() {
var self = this;
self.app.get('/stream.mp3', self.hasPermRead, function(req, resp, next) {
resp.setHeader('Content-Type', 'audio/mpeg');
resp.setHeader('Cache-Control', 'no-cache, no-store, must-revalidate');
resp.setHeader('Pragma', 'no-cache');
resp.setHeader('Expires', '0');
resp.statusCode = 200;
self.player.startStreaming(resp);
req.on('close', function() {
self.player.stopStreaming(resp);
resp.end();
});
});
};
GrooveBasin.prototype.createHasPermMiddleware = function(permName) {
var self = this;
return function(req, resp, next) {
var cookies = new Cookies(req, resp);
var token = cookies.get('token');
var client = self.playerServer.clients[token];
var hasPermission = self.playerServer.userHasPerm(client && client.user, permName);
if (hasPermission) {
req.client = client;
resp.client = client;
next();
} else {
resp.statusCode = 403;
resp.end("not authorized");
}
};
};
GrooveBasin.prototype.startServer = function() {
var self = this;
assert.ok(self.httpServer == null);
self.playerServer = new PlayerServer({
player: self.player,
db: self.db,
});
self.hasPermRead = self.createHasPermMiddleware('read');
self.hasPermAdd = self.createHasPermMiddleware('add');
self.mpdApiServer = new MpdApiServer(self.player);
self.initializeDownload();
self.initializeUpload();
self.initializeStream();
self.playerServer.init(function(err) {
if (err) throw err;
createHttpServer(attachWebSocketServer);
});
function createHttpServer(cb) {
if (!self.config.sslKey || !self.config.sslCert) {
log.warn("WARNING: SSL disabled, using HTTP.");
self.httpServer = http.createServer(self.app);
self.httpProtocol = 'http';
cb();
} else {
if (self.config.sslKey === defaultConfig.sslKey ||
self.config.sslCert === defaultConfig.sslCert)
{
log.warn("WARNING: Using public self-signed certificate.\n" +
"For better security, provide your own self-signed certificate, \n" +
"or better yet, one signed by a certificate authority.\n");
}
self.httpProtocol = 'https';
readKeyAndCert(cb);
}
function readKeyAndCert(cb) {
var pend = new Pend();
var options = {};
pend.go(function(cb) {
fs.readFile(self.config.sslKey, function(err, data) {
if (err) {
log.fatal("Unable to read SSL key file: " + err.message);
process.exit(1);
return;
}
options.key = data;
cb();
});
});
pend.go(function(cb) {
fs.readFile(self.config.sslCert, function(err, data) {
if (err) {
log.fatal("Unable to read SSL cert file: " + err.message);
process.exit(1);
return;
}
options.cert = data;
cb();
});
});
pend.wait(function() {
self.httpServer = https.createServer(options, self.app);
cb();
});
}
}
function attachWebSocketServer() {
self.wss = new WebSocketServer({
server: self.httpServer,
clientTracking: false,
});
self.wss.on('connection', function(ws) {
self.playerServer.handleNewClient(new WebSocketApiClient(ws));
});
self.httpServer.listen(self.httpPort, self.httpHost, function() {
self.emit('listening');
log.info("Web interface listening at " + self.httpProtocol + "://" + self.httpHost + ":" + self.httpPort + "/");
});
self.httpServer.on('close', function() {
log.debug("server closed");
});
var mpdPort = self.config.mpdPort;
var mpdHost = self.config.mpdHost;
if (mpdPort == null || mpdHost == null) {
log.info("MPD Protocol disabled");
} else {
self.protocolServer = net.createServer(function(socket) {
socket.setEncoding('utf8');
var protocol = new MpdProtocol({
player: self.player,
playerServer: self.playerServer,
apiServer: self.mpdApiServer,
});
protocol.on('error', handleError);
socket.on('error', handleError);
socket.pipe(protocol).pipe(socket);
socket.on('close', cleanup);
self.mpdApiServer.handleNewClient(protocol);
function handleError(err) {
log.error("socket error:", err.stack);
socket.destroy();
cleanup();
}
function cleanup() {
self.mpdApiServer.handleClientEnd(protocol);
}
});
self.protocolServer.on('error', function(err) {
if (err.code === 'EADDRINUSE') {
log.error("Failed to bind MPD protocol to port " + mpdPort +
": Address in use.");
} else {
throw err;
}
});
self.protocolServer.listen(mpdPort, mpdHost, function() {
log.info("MPD/GrooveBasin Protocol listening at " +
mpdHost + ":" + mpdPort);
});
}
}
};
function getKey(o) {
return o.key;
}
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