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added sessions

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increased max api calls
This commit is contained in:
Mystikfluu 2022-04-23 18:15:02 +02:00
parent 7982cb192c
commit 235701b646
1 changed files with 36 additions and 1 deletions
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37
server.js
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@ -98,6 +98,8 @@ function unsign(text,req,res) {
var API_CALLS = {}
var USER_CALLS = {}
var SESSIONS = {}
var REVERSE_SESSIONS = {}
function clear_api_calls() {
API_CALLS = {}
}
@ -111,6 +113,28 @@ function increaseAPICall(req,res,next) {
let ip = req.headers['x-forwarded-for'] || req.socket.remoteAddress
if(API_CALLS[ip]==undefined)API_CALLS[ip]=0
if(API_CALLS[ip] >= 20) {
if(REVERSE_SESSIONS[ip] && req.cookies.session !== REVERSE_SESSIONS[ip]) { //expected a session, but didn't get one
res.status(429)
res.send("You are sending way too many api calls!")
return
}
if(!req.cookies.session){
let session
do {
session = genstring(300)
} while (SESSIONS[session] != undefined);
SESSIONS[session]=ip
REVERSE_SESSIONS[ip]=session
setTimeout(function(){
SESSIONS[session]=undefined
REVERSE_SESSIONS[ip]=undefined
},50000)
res.cookie('session',session, { maxAge: 100000, httpOnly: true, secure: DID_I_FINALLY_ADD_HTTPS });
console.log("sending session to " + ip);
}
}
if(API_CALLS[ip] >= 60) {
res.status(429)
res.send("You are sending too many api calls!")
console.log("rate limiting " + ip);
@ -142,6 +166,17 @@ app.use(bodyParser.urlencoded({ limit: "100mb", extended: true }));
app.use(clientErrorHandler);
app.use(cookieParser(cookiesecret));
// app.use("/*",function(req,res,next){
// if(req.get("User-Agent").search("python") != -1) {
// res.status(400)
// res.send("illegal user agent")
// return
// }
// next()
// })
//maybe someone wants it?
app.use("/*",function(req,res,next){
res.set("x-powered-by","ZeroTwoHub")
next()
@ -167,7 +202,7 @@ router.use("/api/*",async function(req,res,next) {
return
}
let unsigned = unsign(cookie,req,res)
if(!unsigned){return}
if(!unsigned)return
let sql = `select * from zerotwohub.users where User_Name=? and User_PW=?;`
let values = unsigned.split(" ")
values[1] = SHA256(values[1],values[0],HASHES_DIFF)