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Handle REQ limit on client filter

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Signed-off-by: Yonle <yonle@lecturify.net>
This commit is contained in:
Yonle
2023-11-06 20:10:48 +07:00
parent 58e51a027f
commit ceed45ce1c
2 changed files with 51 additions and 3 deletions
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25
bouncer/bouncer1.js
View File

@@ -5,7 +5,8 @@ const socks = new Set();
const sess = new SQLite((process.env.IN_MEMORY || tmp_store != "disk") ? null : (__dirname + "/../.temporary.db"));
const csess = new Map();
const pendingEOSE = new Map();
const pendingEOSE = new Map(); // per sessID
const reqLimit = new Map(); // per sessID
// Handle database....
sess.unsafeMode(true);
@@ -42,12 +43,14 @@ module.exports = (ws, req) => {
bc(data);
sess.prepare("INSERT INTO sess VALUES (?, ?, ?);").run(ws.id, data[1], JSON.stringify(data[2]));
pendingEOSE.set(data[1], 0);
reqLimit.set(data[1], data[2]?.limit);
break;
case "CLOSE":
if (typeof(data[1]) !== "string") return ws.send(JSON.stringify(["NOTICE", "error: bad request."]));
data[1] = ws.id + ":" + data[1];
bc(data);
pendingEOSE.delete(data[1]);
reqLimit.delete(data[1]);
sess.prepare("DELETE FROM sess WHERE cID = ? AND subID = ?;").run(ws.id, data[1]);
sess.prepare("DELETE FROM events WHERE cID = ? AND subID = ?;").run(ws.id, data[1]);
break;
@@ -65,6 +68,7 @@ module.exports = (ws, req) => {
for (i of sess.prepare("SELECT subID FROM sess WHERE cID = ?").iterate(ws.id)) {
bc(["CLOSE", i.subID]);
pendingEOSE.delete(i.subID);
reqLimit.delete(i.subID);
}
sess.prepare("DELETE FROM sess WHERE cID = ?;").run(ws.id);
@@ -93,7 +97,6 @@ function newConn(addr) {
for (i of sess.prepare("SELECT subID, filter FROM sess").iterate()) {
if (relay.readyState >= 2) break;
relay.send(JSON.stringify(["REQ", i.subID, JSON.parse(i.filter)]));
if (!pendingEOSE.has(i.subID)) pendingEOSE.set(i.subID, 0);
}
});
@@ -121,6 +124,23 @@ function newConn(addr) {
sess.prepare("INSERT INTO events VALUES (?, ?, ?);").run(cID, subID, data[2]?.id);
data[1] = sID;
csess.get(cID)?.send(JSON.stringify(data));
// Now count for REQ limit requested by client.
// If it's at the limit, Send EOSE to client and delete pendingEOSE of subID
// Skip if EOSE has been omitted
if (!pendingEOSE.has(subID)) return;
const remainingEvents = reqLimit.get(subID);
if (remainingEvents) reqLimit.set(subID, remainingEvents-1);
if (!remainingEvents) {
// Once there are no remaining event, Do the instructed above.
csess.get(cID)?.send(JSON.stringify(["EOSE", sID]));
pendingEOSE.delete(subID);
reqLimit.delete(subID);
}
break;
}
case "EOSE": {
@@ -138,6 +158,7 @@ function newConn(addr) {
csess.get(cID)?.send(JSON.stringify(["EOSE", sID]));
pendingEOSE.delete(subID);
reqLimit.delete(subID);
break;
}
}

29
bouncer/bouncer2.js
View File

@@ -5,7 +5,8 @@ const socks = new Set();
const sess = new SQLite((process.env.IN_MEMORY || tmp_store != "disk") ? null : (__dirname + "/../.temporary.db"));
const csess = new Map();
const pendingEOSE = new Map();
const pendingEOSE = new Map(); // per sessID
const reqLimit = new Map(); // per sessID
// Handle database....
sess.unsafeMode(true);
@@ -41,11 +42,13 @@ module.exports = (ws, req) => {
bc(data, ws.id);
sess.prepare("INSERT INTO sess VALUES (?, ?, ?);").run(ws.id, data[1], JSON.stringify(data[2]));
pendingEOSE.set(ws.id + ":" + data[1], 0);
reqLimit.set(ws.id + ":" + data[1], data[2]?.limit);
break;
case "CLOSE":
if (typeof(data[1]) !== "string") return ws.send(JSON.stringify(["NOTICE", "error: bad request."]));
bc(data, ws.id);
pendingEOSE.delete(ws.id + ":" + data[1]);
reqLimit.delete(ws.id + ":" + data[1]);
sess.prepare("DELETE FROM sess WHERE cID = ? AND subID = ?;").run(ws.id, data[1]);
sess.prepare("DELETE FROM events WHERE cID = ? AND subID = ?;").run(ws.id, data[1]);
break;
@@ -91,6 +94,11 @@ function terminate_sess(id) {
if (!sub[0].startsWith(id)) continue;
pendingEOSE.delete(id);
}
for (sub of reqLimit) {
if (!sub[0].startsWith(id)) continue;
reqLimit.delete(id);
}
}
// WS - Sessions
@@ -123,6 +131,23 @@ function newConn(addr, id) {
sess.prepare("INSERT INTO events VALUES (?, ?, ?);").run(id, data[1], data[2]?.id);
csess.get(id)?.send(JSON.stringify(data));
// Now count for REQ limit requested by client.
// If it's at the limit, Send EOSE to client and delete pendingEOSE of subID
// Skip if EOSE has been omitted
const subID = id + ":" + data[1];
if (!pendingEOSE.has(subID)) return;
const remainingEvents = reqLimit.get(subID);
if (remainingEvents) reqLimit.set(subID, remainingEvents-1);
if (!remainingEvents) {
// Once there are no remaining event, Do the instructed above.
csess.get(id)?.send(JSON.stringify(["EOSE", data[1]]));
pendingEOSE.delete(subID);
reqLimit.delete(subID);
}
break;
}
case "EOSE":
@@ -130,6 +155,8 @@ function newConn(addr, id) {
pendingEOSE.set(id + ":" + data[1], pendingEOSE.get(id + ":" + data[1]) + 1);
if (pendingEOSE.get(id + ":" + data[1]) < Array.from(relays).filter(_ => _.id === id).length) return;
csess.get(id)?.send(JSON.stringify(data));
pendingEOSE.delete(id + ":" + data[1]);
reqLimit.delete(id + ":" + data[1]);
break;
}
});