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music.js
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music.js
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const express = require('express');
const app = express();
const { IPDatabase, TagDatabase } = require('./database');
const fs = require('fs');
const path = require('path').posix;
const {
getCachedMusicFilenames,
getCachedFolderNames,
isPathSame
} = require('./util.js');
const {
FOLDERTREE_ENDPOINT,
TAGS_ENDPOINT,
ALLMUSIC_ENDPOINT,
IPS_DB_PATH,
TAGS_DB_PATH
} = require('./consts.js');
const ipDB = new IPDatabase(IPS_DB_PATH);
const tagDB = new TagDatabase(TAGS_DB_PATH);
console.log('Loaded DBs.');
app.get('/foldertree/', async (req, res) => {
try {
res.send((await getCachedFolderNames()).map(e => `${FOLDERTREE_ENDPOINT}/` + encodeURIComponent(e)));
} catch (e) {
res.status(500);
res.send({
"error": "Oops! Something went wrong, check the stack below.",
"stack": e.stack
})
}
})
app.get('/foldertree/:folderName', (req, res) => {
getCachedMusicFilenames(req.params.folderName)
.then(r => res.send(r))
.catch(e => {
res.status(500);
res.send({
"error": "Oops! Something went wrong, check the stack below.",
"stack": e.stack
});
});
})
app.use('/foldertree', express.static('Music'));
app.get('/allmusic', (req, res) => {
var { count, offset } = req.query;
count = parseInt(count);
offset = parseInt(offset);
getCachedMusicFilenames()
.then(arr => {
if ((count === undefined || isNaN(count)) && (offset === undefined || isNaN(offset)))
res.send(arr);
else {
res.send(arr.slice(offset, offset + count));
}
})
.catch(e => {
res.status(500);
res.send({
"error": "Oops! Something went wrong, check the stack below.",
"stack": e.stack
});
});
});
const DEFAULT_TAGS = ["8-bit","accordian","adventure","ambient","battle","beautiful","boss","brass","cave","celebration","cheery","chiptune","choir","circus","credits","creepy","cutscene","depressing","dark","day","disco","distant","distorted","dynamic","electronic","emotional","empty","fall","fast","finale","foreboding","frantic","gambling","game over","gentle","glitch","guitar","happy","hardcore","harp","heavy","heroic","hip hop","horror","insane","intense","jazz","joyful","latin","lullaby","march","medley","mellow","meloncholy","meme","menu","metal","minimal","music box","mysterious","night","nostalgic","orchestrated","organ","piano","pop","powerful","rave","relaxing","remix","rock","romantic","saxophone","secret","sfx","shop","silly","slow","snow","soft","space","spring","strings","summer","synth","tropical","trumpet","underwater","upbeat","violin","vocals","volcano","waltz","weird","western","winter","woodwind"]
app.get('/defaulttags', (req, res) => {
res.send(DEFAULT_TAGS);
})
app.get('/usertags/:folderName/:fileName', (req, res) => {
const { folderName, fileName } = req.params;
const ip = req.headers['x-forwarded-for'] || req.socket.remoteAddress;
const songPath = path.join('Music', folderName, fileName);
//how do you do this more effectively?
if (!!ipDB.searchByIP(ip)) {
ipDB.searchByIP(ip).taggedSongs.forEach((song, i) => {
if (song.path == songPath){
res.send(ipDB.searchByIP(ip).taggedSongs[i].tags)
}
});
} else {
res.send(JSON.stringify([]));
}
if (!res.headersSent){
res.send(JSON.stringify(new Array()));
}
})
app.get('/tags/:folderName/:fileName', (req, res) => {
const { folderName, fileName } = req.params;
const songPath = path.join('Music', folderName, fileName);
//how do you do this more effectively?
if(!!tagDB.searchByPath(songPath)){
result = {};
for (tag of tagDB.searchByPath(songPath).tags) {
result[tag.tagName] = tag.votes;
}
res.send(result);
}
if (!res.headersSent){
res.send(JSON.stringify([]));
}
})
app.post('/tags/:folderName/:fileName', (req, res) => {
const { action } = req.body;
const { folderName, fileName } = req.params;
const ip = req.headers['x-forwarded-for'] || req.socket.remoteAddress;
const songPath = path.join('Music', folderName, fileName);
if (!folderName || !fileName || !fs.existsSync(songPath)) {
res.status(400);
res.send({
error: "path doesn't exist"
});
return;
} else {
switch (action) {
case 'vote': {
if (!req.body.tags || req.body.tags.length == 0 || !Array.isArray(req.body.tags)) {
res.status(400);
res.send({
error: "insufficient or invalid body parameters"
});
return;
}
if(require('./db/bannedips.json').includes(ip)){
res.status(403);
res.send({
error: "You have been banned from voting."
});
return;
}
const tags = req.body.tags.map(e => e.toLowerCase());
let acceptedTags = [];
let rejectedTags = [];
// tag checks on behalf of the ip database
// these checks are basically to check if the ip user
// has already tagged a song with the tags array
if (!!ipDB.searchByIP(ip)) {
// filtered custom input tags
let customTags = tags.filter(e => !DEFAULT_TAGS.includes(e));
// filtered default input tags
let defaultTags = tags.filter(e => DEFAULT_TAGS.includes(e));
// get taggedSongs for the ip requester
let currIPTaggedSongs = ipDB.searchByIP(ip).taggedSongs;
if (!(currIPTaggedSongs.findIndex(e => isPathSame(songPath, e.path)) === -1)) {
// it means that the selected song has already
// been tagged with something in the ip database
// getting the selected song's tags
let currIPSongTags = currIPTaggedSongs[currIPTaggedSongs.findIndex(e => isPathSame(songPath, e.path))].tags;
if (customTags.length > 0 && currIPSongTags.filter(e => !DEFAULT_TAGS.includes(e)).length > 0) {
rejectedTags.push(...tags.filter(e => !DEFAULT_TAGS.includes(e)));
}
// sorry i aint explaining this im having a mental breakdown rn
for (let tag of currIPSongTags) {
if (DEFAULT_TAGS.includes(tag) && defaultTags.includes(tag)) {
rejectedTags.push(tag);
}
}
}
}
rejectedTags = [...new Set(rejectedTags)];
acceptedTags = [...new Set(tags.filter(e => !rejectedTags.includes(e)))];
acceptedTags.forEach(e => {
if (!tagDB.tagExists(songPath, e)) {
tagDB.addTagToSong(songPath, e);
}
ipDB.addTaggedSongForIP(ip, songPath, e);
tagDB.incrementTagOnSong(songPath, e);
});
res.send({
accepted: acceptedTags,
rejected: rejectedTags
});
break;
}
case 'removevote': {
if (!req.body.tags || req.body.tags.length == 0 || !Array.isArray(req.body.tags)) {
res.status(400);
res.send({
error: "insufficient or invalid body parameters"
});
return;
}
const tags = req.body.tags.map(e => e.toLowerCase());
let acceptedTags = []
let rejectedTags = []
tags.forEach(tag => {
try {
ipDB.removeTaggedSongForIP(ip, songPath, tag);
tagDB.decrementTagOnSong(songPath, tag);
acceptedTags.push(tag);
} catch (e) {
rejectedTags.push(tag);
}
});
res.send({
accepted: acceptedTags,
rejected: rejectedTags
});
break;
}
default: {
res.status(400);
res.send({
error: "invalid action"
});
return;
}
}
}
});
module.exports = app;