127 lines
3.9 KiB
JavaScript
Executable file
127 lines
3.9 KiB
JavaScript
Executable file
#! /usr/bin/env node
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const compression = require('compression')
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const express = require('express');
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const fs = require('fs');
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const app = express();
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app.use(compression())
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app.use("/getupdates",(req, res) => {
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const out=fs.statSync(`${__dirname}/webpage`);
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res.send(out.mtimeMs+"");
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});
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let debugging=true;//Do not turn this off, the service worker is all kinds of jank as is, it'll really mess your day up if you disable this
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function isembed(str){
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return false//str.includes("discord")||str.includes("Spacebar");
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}
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async function getapiurls(str){
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if(str[str.length-1]!=="/"){
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str+="/"
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}
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let api;
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try{
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const info=await fetch(`${str}/.well-known/spacebar`).then((x) => x.json());
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api=info.api;
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}catch{
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return false
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}
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const url = new URL(api);
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try{
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const info=await fetch(`${api}${url.pathname.includes("api") ? "" : "api"}/policies/instance/domains`).then((x) => x.json());
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return {
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api: info.apiEndpoint,
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gateway: info.gateway,
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cdn: info.cdn,
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wellknown: str,
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};
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}catch{
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return false;
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}
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}
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async function inviteres(req,res){
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//console.log(req.rawHeaders);
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try{
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let embed=isembed(req.get("User-Agent"));
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if(!embed){return false};
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const code=req.path.split("/")[2];
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let title="";
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let description="";
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let icon="";
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const urls=await getapiurls(req.query.instance);
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await fetch(`${urls.api}/invites/${code}`,{
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method:"GET"
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}).then(_=>_.json()).then(json=>{
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title=json.guild.name;
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if(json.inviter){
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description=json.inviter.username+" Has invited you to "+json.guild.name+(json.guild.description?json.guild.description+"\n":"");
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}else{
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description="you've been invited to "+json.guild.name+(json.guild.description?json.guild.description+"\n":"");
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}
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if(json.guild.icon){
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icon=`${urls.cdn}/icons/${json.guild.id}/${json.guild.icon}.png`;
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}
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});
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function htmlEnc(s) {//https://stackoverflow.com/a/11561642
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return s.replaceAll(/&/g, '&')
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.replaceAll(/</g, '<')
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.replaceAll(/>/g, '>')
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.replaceAll(/'/g, ''')
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.replaceAll(/"/g, '"');
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}
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function strEscape(s){
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return JSON.stringify(s);
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}
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html=
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`<!DOCTYPE html>`+
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`<html lang="en">`+
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`<head>`+
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`<title>${htmlEnc(title)}</title>`+
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`<meta content=${strEscape(title)} property="og:title"/>`+
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`<meta content=${strEscape(description)} property="og:description"/>`+
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`<meta content=${strEscape(icon)} property="og:image"/>`+
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`</head>`+
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`</html>`
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res.type('html');
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res.send(html);
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return true;
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}catch(e){
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console.error(e);
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}
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return false;
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}
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app.use('/', async (req, res) => {
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if(debugging&&req.path.startsWith("/service.js")){
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res.send("dud");
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return;
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}
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if(req.path.startsWith("/invite/")){
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const condition=await inviteres(req,res);
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if(!condition){
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res.sendFile(`./webpage/invite.html`, {root: __dirname});
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}
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return;
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}
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if(fs.existsSync(`${__dirname}/webpage${req.path}`)) {
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res.sendFile(`./webpage${req.path}`, {root: __dirname});
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}else if(req.path.endsWith(".js") && fs.existsSync(`${__dirname}/.dist${req.path}`)){
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const dir=`./.dist${req.path}`;
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res.sendFile(dir, {root: __dirname});
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return;
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}
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else if(fs.existsSync(`${__dirname}/webpage${req.path}.html`)) {
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res.sendFile(`./webpage${req.path}.html`, {root: __dirname});
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}
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else {
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res.sendFile("./webpage/index.html", {root: __dirname});
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}
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});
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const PORT = process.env.PORT || +process.argv[1] || 8080;
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app.listen(PORT, () => {});
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console.log("this ran :P");
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