100 lines
3.6 KiB
JavaScript
100 lines
3.6 KiB
JavaScript
export const setup = function (router, con, server) {
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const PIDS = {}; //[pid]: true/"already_used"
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function createPID(){
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let pid = server.genstring(10); //collision chance is low enough, but we'll check anyways
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while (PIDS[pid] != undefined) {
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pid = server.genstring(10);
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console.log(5, "pid collision");
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}
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PIDS[pid] = true;
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setTimeout(function() {
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PIDS[pid] = undefined;
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}, 40000);
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return pid
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}
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router.get("/api/pid", async function (req, res) {
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res.set("Access-Control-Allow-Origin", "*");
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res.json({ "pid": createPID() });
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});
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router.post("/api/post", async function (req, res) {
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if (!req.body.message) {
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res.json({ "error": "no message to post" });
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return;
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}
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if ((typeof req.body.message) != "string") {
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res.json({ "error": "no message to post" });
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return;
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}
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if ((typeof req.body.pid) != "string") {
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res.json({ "error": "no pid given" });
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return;
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}
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if (req.body.pid.length != 10 || PIDS[req.body.pid] !== true) {
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res.json({ "error": "invalid pid given" });
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return;
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}
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PIDS[req.body.pid] = "already_used";
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let reply_id;
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if (!req.body.reply_id || req.body.reply_id < 0) {
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reply_id = 0;
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}
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else {
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reply_id = req.body.reply_id;
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}
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if ((typeof req.body.reply_id) != "number") {
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res.json({ "error": "no valid reply id given" });
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return;
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}
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if (req.body.message.length > 1000) {
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res.json({ "error": "message too long" });
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return;
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}
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req.body.message = encodeURIComponent(req.body.message.trim());
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if (req.body.message.length > 3000) {
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res.json({ "error": "message too long" }); //check again after URI encoding it
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return;
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}
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req.body.receiver = encodeURIComponent(req.body.receiver || "");
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if (req.body.receiver == "")
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req.body.receiver = "everyone";
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if (!req.body.message) {
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res.json({ "error": "no message to post" });
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return;
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}
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let sql = `insert into ipost.posts (post_user_name,post_text,post_time,post_receiver_name,post_from_bot,post_reply_id) values (?,?,?,?,?,?);`;
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let values = [encodeURIComponent(res.locals.username), req.body.message, Date.now(), req.body.receiver, res.locals.isbot, reply_id];
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con.query(sql, values, function (err, result) {
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if (err)
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throw err;
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let post_obj = {
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post_user_name: encodeURIComponent(res.locals.username),
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post_text: req.body.message,
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post_time: Date.now(),
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post_special_text: "",
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post_receiver_name: req.body.receiver,
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post_from_bot: res.locals.isbot,
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post_reply_id: reply_id
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};
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let message = {
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message: "new_post",
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data: post_obj
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};
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let messagestr = JSON.stringify(message);
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let channel = decodeURIComponent(req.body.receiver);
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server.wss.clients.forEach(async function (ws) {
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if (ws.channel == channel) {
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ws.send(messagestr);
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}
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});
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res.json({ "success": "successfully posted message" });
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console.log(5, `posted new message by ${res.locals.username} : ${req.body.message}`);
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});
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});
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return createPID
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};
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export default {
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setup
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};
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