forked from CringeStudios/gamja
195e4ca371
Some servers allow fetching history from some targets but not others. Don't completely stop fetching chat history on error. The root cause was a variable shadowing in Client.fetchBatch.
879 lines
22 KiB
JavaScript
879 lines
22 KiB
JavaScript
import * as irc from "./irc.js";
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// Static list of capabilities that are always requested when supported by the
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// server
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const permanentCaps = [
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"account-notify",
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"away-notify",
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"batch",
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"chghost",
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"echo-message",
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"extended-join",
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"invite-notify",
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"labeled-response",
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"message-tags",
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"multi-prefix",
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"server-time",
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"setname",
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"draft/chathistory",
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"draft/event-playback",
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"draft/extended-monitor",
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"soju.im/bouncer-networks",
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];
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const RECONNECT_DELAY_SEC = 10;
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// WebSocket status codes
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// https://www.rfc-editor.org/rfc/rfc6455.html#section-7.4.1
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const NORMAL_CLOSURE = 1000;
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const GOING_AWAY = 1001;
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const UNSUPPORTED_DATA = 1003;
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// See https://github.com/quakenet/snircd/blob/master/doc/readme.who
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// Sorted by order of appearance in RPL_WHOSPCRPL
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const WHOX_FIELDS = {
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"channel": "c",
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"username": "u",
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"hostname": "h",
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"server": "s",
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"nick": "n",
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"flags": "f",
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"account": "a",
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"realname": "r",
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};
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let lastLabel = 0;
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let lastWhoxToken = 0;
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export default class Client extends EventTarget {
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static Status = {
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DISCONNECTED: "disconnected",
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CONNECTING: "connecting",
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REGISTERING: "registering",
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REGISTERED: "registered",
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};
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status = Client.Status.DISCONNECTED;
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serverPrefix = { name: "*" };
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nick = null;
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availableCaps = {};
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enabledCaps = {};
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isupport = new Map();
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ws = null;
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params = {
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url: null,
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username: null,
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realname: null,
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nick: null,
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pass: null,
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saslPlain: null,
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saslExternal: false,
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bouncerNetwork: null,
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};
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batches = new Map();
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autoReconnect = true;
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reconnectTimeoutID = null;
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pingIntervalID = null;
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pendingHistory = Promise.resolve(null);
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cm = irc.CaseMapping.RFC1459;
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monitored = new irc.CaseMapMap(null, irc.CaseMapping.RFC1459);
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pendingLists = new irc.CaseMapMap(null, irc.CaseMapping.RFC1459);
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whoxQueries = new Map();
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constructor(params) {
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super();
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this.params = { ...this.params, ...params };
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this.reconnect();
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}
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reconnect() {
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let autoReconnect = this.autoReconnect;
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this.disconnect();
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this.autoReconnect = autoReconnect;
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console.log("Connecting to " + this.params.url);
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this.setStatus(Client.Status.CONNECTING);
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try {
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this.ws = new WebSocket(this.params.url);
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} catch (err) {
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console.error("Failed to create connection:", err);
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setTimeout(() => {
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this.dispatchEvent(new CustomEvent("error", { detail: "Failed to create connection: " + err }));
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this.setStatus(Client.Status.DISCONNECTED);
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}, 0);
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return;
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}
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this.ws.addEventListener("open", this.handleOpen.bind(this));
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this.ws.addEventListener("message", this.handleMessage.bind(this));
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this.ws.addEventListener("close", (event) => {
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console.log("Connection closed (code: " + event.code + ")");
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if (event.code !== NORMAL_CLOSURE && event.code !== GOING_AWAY) {
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this.dispatchEvent(new CustomEvent("error", { detail: "Connection error" }));
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}
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this.ws = null;
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this.setStatus(Client.Status.DISCONNECTED);
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this.nick = null;
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this.serverPrefix = null;
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this.availableCaps = {};
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this.enabledCaps = {};
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this.batches = new Map();
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this.pendingHistory = Promise.resolve(null);
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this.isupport = new Map();
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this.monitored = new irc.CaseMapMap(null, irc.CaseMapping.RFC1459);
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if (this.autoReconnect) {
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if (!navigator.onLine) {
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console.info("Waiting for network to go back online");
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const handleOnline = () => {
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window.removeEventListener("online", handleOnline);
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this.reconnect();
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};
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window.addEventListener("online", handleOnline);
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} else {
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console.info("Reconnecting to server in " + RECONNECT_DELAY_SEC + " seconds");
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clearTimeout(this.reconnectTimeoutID);
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this.reconnectTimeoutID = setTimeout(() => {
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this.reconnect();
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}, RECONNECT_DELAY_SEC * 1000);
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}
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}
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});
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}
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disconnect() {
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this.autoReconnect = false;
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clearTimeout(this.reconnectTimeoutID);
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this.reconnectTimeoutID = null;
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this.setPingInterval(0);
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if (this.ws) {
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this.ws.close(NORMAL_CLOSURE);
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}
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}
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setStatus(status) {
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if (this.status === status) {
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return;
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}
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this.status = status;
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this.dispatchEvent(new CustomEvent("status"));
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}
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handleOpen() {
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console.log("Connection opened");
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this.setStatus(Client.Status.REGISTERING);
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this.nick = this.params.nick;
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this.send({ command: "CAP", params: ["LS", "302"] });
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if (this.params.pass) {
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this.send({ command: "PASS", params: [this.params.pass] });
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}
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this.send({ command: "NICK", params: [this.nick] });
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this.send({
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command: "USER",
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params: [this.params.username, "0", "*", this.params.realname],
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});
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}
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pushPendingList(k, msg) {
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let l = this.pendingLists.get(k);
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if (!l) {
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l = [];
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this.pendingLists.set(k, l);
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}
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l.push(msg);
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}
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endPendingList(k, msg) {
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msg.list = this.pendingLists.get(k) || [];
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this.pendingLists.delete(k);
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}
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handleMessage(event) {
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if (typeof event.data !== "string") {
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console.error("Received unsupported data type:", event.data);
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this.ws.close(UNSUPPORTED_DATA);
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return;
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}
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let msg = irc.parseMessage(event.data);
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console.debug("Received:", msg);
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// If the prefix is missing, assume it's coming from the server on the
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// other end of the connection
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if (!msg.prefix) {
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msg.prefix = this.serverPrefix;
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}
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let msgBatch = null;
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if (msg.tags["batch"]) {
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msgBatch = this.batches.get(msg.tags["batch"]);
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if (msgBatch) {
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msg.batch = msgBatch;
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}
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}
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let deleteBatch = null;
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let k;
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switch (msg.command) {
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case irc.RPL_WELCOME:
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if (this.params.saslPlain && this.availableCaps["sasl"] === undefined) {
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this.dispatchEvent(new CustomEvent("error", { detail: "Server doesn't support SASL PLAIN" }));
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this.disconnect();
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return;
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}
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if (msg.prefix) {
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this.serverPrefix = msg.prefix;
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}
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console.log("Registration complete");
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this.setStatus(Client.Status.REGISTERED);
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break;
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case irc.RPL_ISUPPORT:
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let tokens = msg.params.slice(1, -1);
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let changed = irc.parseISUPPORT(tokens, this.isupport);
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if (changed.indexOf("CASEMAPPING") >= 0) {
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this.setCaseMapping(this.isupport.get("CASEMAPPING"));
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}
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if (changed.indexOf("MONITOR") >= 0 && this.isupport.has("MONITOR") && this.monitored.size > 0) {
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let targets = Array.from(this.monitored.keys()).slice(0, this.maxMonitorTargets());
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this.send({ command: "MONITOR", params: ["+", targets.join(",")] });
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}
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break;
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case irc.RPL_ENDOFMOTD:
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case irc.ERR_NOMOTD:
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// These messages are used to indicate the end of the ISUPPORT list
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if (!this.isupport.has("CASEMAPPING")) {
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// Server didn't send any CASEMAPPING token, assume RFC 1459
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this.setCaseMapping("rfc1459");
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}
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break;
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case "CAP":
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this.handleCap(msg);
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break;
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case "AUTHENTICATE":
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this.handleAuthenticate(msg);
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break;
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case irc.RPL_LOGGEDIN:
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console.log("Logged in");
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break;
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case irc.RPL_LOGGEDOUT:
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console.log("Logged out");
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break;
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case irc.RPL_SASLSUCCESS:
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console.log("SASL authentication success");
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if (this.status != Client.Status.REGISTERED) {
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if (this.enabledCaps["soju.im/bouncer-networks"] && this.params.bouncerNetwork) {
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this.send({ command: "BOUNCER", params: ["BIND", this.params.bouncerNetwork] });
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}
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this.send({ command: "CAP", params: ["END"] });
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}
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break;
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case irc.RPL_NAMREPLY:
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this.pushPendingList("NAMES " + msg.params[2], msg);
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break;
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case irc.RPL_ENDOFNAMES:
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this.endPendingList("NAMES " + msg.params[1], msg);
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break;
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case irc.RPL_WHOISUSER:
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case irc.RPL_WHOISSERVER:
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case irc.RPL_WHOISOPERATOR:
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case irc.RPL_WHOISIDLE:
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case irc.RPL_WHOISCHANNELS:
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this.pushPendingList("WHOIS " + msg.params[1], msg);
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break;
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case irc.RPL_ENDOFWHOIS:
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this.endPendingList("WHOIS " + msg.params[1], msg);
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break;
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case irc.ERR_NICKLOCKED:
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case irc.ERR_SASLFAIL:
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case irc.ERR_SASLTOOLONG:
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case irc.ERR_SASLABORTED:
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case irc.ERR_SASLALREADY:
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this.dispatchEvent(new CustomEvent("error", { detail: "SASL error (" + msg.command + "): " + msg.params[1] }));
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this.disconnect();
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break;
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case "PING":
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this.send({ command: "PONG", params: [msg.params[0]] });
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break;
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case "NICK":
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let newNick = msg.params[0];
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if (this.isMyNick(msg.prefix.name)) {
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this.nick = newNick;
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}
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break;
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case "BATCH":
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let enter = msg.params[0].startsWith("+");
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let name = msg.params[0].slice(1);
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if (enter) {
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let batch = {
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name,
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type: msg.params[1],
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params: msg.params.slice(2),
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tags: msg.tags,
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parent: msgBatch,
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};
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this.batches.set(name, batch);
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} else {
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deleteBatch = name;
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}
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break;
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case "ERROR":
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this.dispatchEvent(new CustomEvent("error", { detail: "Fatal IRC error: " + msg.params[0] }));
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this.disconnect();
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break;
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case irc.ERR_PASSWDMISMATCH:
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case irc.ERR_ERRONEUSNICKNAME:
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case irc.ERR_NICKNAMEINUSE:
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case irc.ERR_NICKCOLLISION:
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case irc.ERR_UNAVAILRESOURCE:
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case irc.ERR_NOPERMFORHOST:
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case irc.ERR_YOUREBANNEDCREEP:
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this.dispatchEvent(new CustomEvent("error", { detail: "Error (" + msg.command + "): " + msg.params[msg.params.length - 1] }));
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if (this.status != Client.Status.REGISTERED) {
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this.disconnect();
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}
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break;
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case "FAIL":
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if (msg.params[0] === "BOUNCER" && msg.params[2] === "BIND") {
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this.dispatchEvent(new CustomEvent("error", {
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detail: "Failed to bind to bouncer network: " + msg.params[3],
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}));
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this.disconnect();
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}
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break;
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}
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this.dispatchEvent(new CustomEvent("message", {
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detail: { message: msg, batch: msgBatch },
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}));
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// Delete after firing the message event so that handlers can access
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// the batch
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if (deleteBatch) {
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this.batches.delete(deleteBatch);
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}
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}
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who(mask, options) {
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let params = [mask];
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let fields = "", token = "";
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if (options && this.isupport.has("WHOX")) {
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let match = ""; // Matches exact channel or nick
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fields = "t"; // Always include token in reply
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if (options.fields) {
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options.fields.forEach((k) => {
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if (!WHOX_FIELDS[k]) {
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throw new Error(`Unknown WHOX field ${k}`);
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}
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fields += WHOX_FIELDS[k];
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});
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}
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token = String(lastWhoxToken % 1000);
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lastWhoxToken++;
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params.push(`${match}%${fields},${token}`);
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this.whoxQueries.set(token, fields);
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}
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let msg = { command: "WHO", params };
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let l = [];
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return this.roundtrip(msg, (msg) => {
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switch (msg.command) {
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case irc.RPL_WHOREPLY:
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// TODO: match with mask
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l.push(this.parseWhoReply(msg));
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break;
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case irc.RPL_WHOSPCRPL:
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if (msg.params.length !== fields.length || msg.params[1] !== token) {
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break;
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}
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l.push(this.parseWhoReply(msg));
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break;
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case irc.RPL_ENDOFWHO:
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if (msg.params[1] === mask) {
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return l;
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}
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break;
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}
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}).finally(() => {
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this.whoxQueries.delete(token);
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});
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}
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parseWhoReply(msg) {
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switch (msg.command) {
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case irc.RPL_WHOREPLY:
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let last = msg.params[msg.params.length - 1];
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return {
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username: msg.params[2],
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hostname: msg.params[3],
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server: msg.params[4],
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nick: msg.params[5],
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flags: msg.params[6],
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realname: last.slice(last.indexOf(" ") + 1),
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};
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case irc.RPL_WHOSPCRPL:
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let token = msg.params[1];
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let fields = this.whoxQueries.get(token);
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if (!fields) {
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throw new Error("Unknown WHOX token: " + token);
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}
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let who = {};
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let i = 0;
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Object.keys(WHOX_FIELDS).forEach((k) => {
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if (fields.indexOf(WHOX_FIELDS[k]) < 0) {
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return;
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}
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who[k] = msg.params[2 + i];
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i++;
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});
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if (who.account === "0") {
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// WHOX uses "0" to mean "no account"
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who.account = null;
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}
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return who;
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default:
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throw new Error("Not a WHO reply: " + msg.command);
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}
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}
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whois(target) {
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let targetCM = this.cm(target);
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let msg = { command: "WHOIS", params: [target] };
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return this.roundtrip(msg, (msg) => {
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let nick;
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switch (msg.command) {
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case irc.RPL_ENDOFWHOIS:
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nick = msg.params[1];
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if (this.cm(nick) === targetCM) {
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let whois = {};
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msg.list.forEach((reply) => {
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whois[reply.command] = reply;
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});
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return whois;
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}
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break;
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case irc.ERR_NOSUCHNICK:
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nick = msg.params[1];
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if (this.cm(nick) === targetCM) {
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throw msg;
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}
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break;
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}
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});
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}
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addAvailableCaps(s) {
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let l = s.split(" ");
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l.forEach((s) => {
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let i = s.indexOf("=");
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let k = s, v = "";
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if (i >= 0) {
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k = s.slice(0, i);
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v = s.slice(i + 1);
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}
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this.availableCaps[k.toLowerCase()] = v;
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});
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}
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supportsSASL(mech) {
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let saslCap = this.availableCaps["sasl"];
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if (saslCap === undefined) {
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return false;
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}
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return saslCap.split(",").includes(mech);
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}
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requestCaps(extra) {
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let reqCaps = extra || [];
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permanentCaps.forEach((cap) => {
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if (this.availableCaps[cap] !== undefined && !this.enabledCaps[cap]) {
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reqCaps.push(cap);
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}
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});
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if (reqCaps.length > 0) {
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this.send({ command: "CAP", params: ["REQ", reqCaps.join(" ")] });
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}
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}
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handleCap(msg) {
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let subCmd = msg.params[1];
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let args = msg.params.slice(2);
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switch (subCmd) {
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case "LS":
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this.addAvailableCaps(args[args.length - 1]);
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if (args[0] != "*") {
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console.log("Available server caps:", this.availableCaps);
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let reqCaps = [];
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let capEnd = true;
|
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if ((this.params.saslPlain && this.supportsSASL("PLAIN")) || (this.params.saslExternal && this.supportsSASL("EXTERNAL"))) {
|
|
// CAP END is deferred after authentication finishes
|
|
reqCaps.push("sasl");
|
|
capEnd = false;
|
|
}
|
|
|
|
if (!this.params.bouncerNetwork && this.availableCaps["soju.im/bouncer-networks-notify"] !== undefined) {
|
|
reqCaps.push("soju.im/bouncer-networks-notify");
|
|
}
|
|
|
|
this.requestCaps(reqCaps);
|
|
|
|
if (this.status != Client.Status.REGISTERED && capEnd) {
|
|
this.send({ command: "CAP", params: ["END"] });
|
|
}
|
|
}
|
|
break;
|
|
case "NEW":
|
|
this.addAvailableCaps(args[0]);
|
|
console.log("Server added available caps:", args[0]);
|
|
this.requestCaps();
|
|
break;
|
|
case "DEL":
|
|
args[0].split(" ").forEach((cap) => {
|
|
cap = cap.toLowerCase();
|
|
delete this.availableCaps[cap];
|
|
delete this.enabledCaps[cap];
|
|
});
|
|
console.log("Server removed available caps:", args[0]);
|
|
break;
|
|
case "ACK":
|
|
console.log("Server ack'ed caps:", args[0]);
|
|
args[0].split(" ").forEach((cap) => {
|
|
cap = cap.toLowerCase();
|
|
this.enabledCaps[cap] = true;
|
|
|
|
if (cap == "sasl" && this.params.saslPlain) {
|
|
console.log("Starting SASL PLAIN authentication");
|
|
this.send({ command: "AUTHENTICATE", params: ["PLAIN"] });
|
|
} else if (cap == "sasl" && this.params.saslExternal) {
|
|
console.log("Starting SASL EXTERNAL authentication");
|
|
this.send({ command: "AUTHENTICATE", params: ["EXTERNAL"] });
|
|
}
|
|
});
|
|
break;
|
|
case "NAK":
|
|
console.log("Server nak'ed caps:", args[0]);
|
|
if (this.status != Client.Status.REGISTERED) {
|
|
this.send({ command: "CAP", params: ["END"] });
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
handleAuthenticate(msg) {
|
|
let challengeStr = msg.params[0];
|
|
|
|
if (challengeStr != "+") {
|
|
this.dispatchEvent(new CustomEvent("error", { detail: "Expected an empty challenge, got: " + challengeStr }));
|
|
this.send({ command: "AUTHENTICATE", params: ["*"] });
|
|
return;
|
|
}
|
|
|
|
if (this.params.saslPlain) {
|
|
let respStr = btoa("\0" + this.params.saslPlain.username + "\0" + this.params.saslPlain.password);
|
|
this.send({ command: "AUTHENTICATE", params: [respStr] });
|
|
} else if (this.params.saslExternal) {
|
|
this.send({ command: "AUTHENTICATE", params: [btoa("")] });
|
|
} else {
|
|
throw new Error("Received AUTHENTICATE for unknown mechanism");
|
|
}
|
|
}
|
|
|
|
send(msg) {
|
|
if (!this.ws) {
|
|
throw new Error("Failed to send IRC message " + msg.command + ": socket is closed");
|
|
}
|
|
this.ws.send(irc.formatMessage(msg));
|
|
console.debug("Sent:", msg);
|
|
}
|
|
|
|
setCaseMapping(name) {
|
|
this.cm = irc.CaseMapping.byName(name);
|
|
if (!this.cm) {
|
|
console.error("Unsupported case-mapping '" + name + "', falling back to RFC 1459");
|
|
this.cm = irc.CaseMapping.RFC1459;
|
|
}
|
|
|
|
this.pendingLists = new irc.CaseMapMap(this.pendingLists, this.cm);
|
|
this.monitored = new irc.CaseMapMap(this.monitored, this.cm);
|
|
}
|
|
|
|
isServer(name) {
|
|
return name === "*" || this.cm(name) === this.cm(this.serverPrefix.name);
|
|
}
|
|
|
|
isMyNick(nick) {
|
|
return this.cm(nick) == this.cm(this.nick);
|
|
}
|
|
|
|
isChannel(name) {
|
|
let chanTypes = this.isupport.get("CHANTYPES") || irc.STD_CHANTYPES;
|
|
return chanTypes.indexOf(name[0]) >= 0;
|
|
}
|
|
|
|
setPingInterval(sec) {
|
|
clearInterval(this.pingIntervalID);
|
|
this.pingIntervalID = null;
|
|
|
|
if (sec <= 0) {
|
|
return;
|
|
}
|
|
|
|
this.pingIntervalID = setInterval(() => {
|
|
if (this.ws) {
|
|
this.send({ command: "PING", params: ["gamja"] });
|
|
}
|
|
}, sec * 1000);
|
|
}
|
|
|
|
/* Execute a command that expects a response. `done` is called with message
|
|
* events until it returns a truthy value. */
|
|
roundtrip(msg, done) {
|
|
let label;
|
|
if (this.enabledCaps["labeled-response"]) {
|
|
lastLabel++;
|
|
label = String(lastLabel);
|
|
msg.tags = { ...msg.tags, label };
|
|
}
|
|
|
|
return new Promise((resolve, reject) => {
|
|
let removeEventListeners;
|
|
|
|
let handleMessage = (event) => {
|
|
let msg = event.detail.message;
|
|
|
|
let msgLabel = irc.getMessageLabel(msg);
|
|
if (msgLabel && msgLabel != label) {
|
|
return;
|
|
}
|
|
|
|
let result;
|
|
try {
|
|
result = done(msg);
|
|
} catch (err) {
|
|
removeEventListeners();
|
|
reject(err);
|
|
}
|
|
if (result) {
|
|
removeEventListeners();
|
|
resolve(result);
|
|
}
|
|
|
|
// TODO: handle end of labeled response somehow
|
|
};
|
|
|
|
let handleStatus = () => {
|
|
if (this.status === Client.Status.DISCONNECTED) {
|
|
removeEventListeners();
|
|
reject(new Error("Connection closed"));
|
|
}
|
|
};
|
|
|
|
removeEventListeners = () => {
|
|
this.removeEventListener("message", handleMessage);
|
|
this.removeEventListener("status", handleStatus);
|
|
};
|
|
|
|
this.addEventListener("message", handleMessage);
|
|
this.addEventListener("status", handleStatus);
|
|
this.send(msg);
|
|
});
|
|
}
|
|
|
|
fetchBatch(msg, batchType) {
|
|
let batchName = null;
|
|
let messages = [];
|
|
let cmd = msg.command;
|
|
return this.roundtrip(msg, (msg) => {
|
|
if (batchName) {
|
|
let batch = msg.batch;
|
|
while (batch) {
|
|
if (batch.name === batchName) {
|
|
messages.push(msg);
|
|
break;
|
|
}
|
|
batch = batch.parent;
|
|
}
|
|
}
|
|
|
|
switch (msg.command) {
|
|
case "BATCH":
|
|
let enter = msg.params[0].startsWith("+");
|
|
let name = msg.params[0].slice(1);
|
|
if (enter && msg.params[1] === batchType) {
|
|
batchName = name;
|
|
break;
|
|
}
|
|
if (!enter && name === batchName) {
|
|
return { ...this.batches.get(name), messages };
|
|
}
|
|
break;
|
|
case "FAIL":
|
|
if (msg.params[0] === cmd) {
|
|
throw msg;
|
|
}
|
|
break;
|
|
}
|
|
});
|
|
}
|
|
|
|
roundtripChatHistory(params) {
|
|
// Don't send multiple CHATHISTORY commands in parallel, we can't
|
|
// properly handle batches and errors.
|
|
this.pendingHistory = this.pendingHistory.catch(() => {}).then(() => {
|
|
let msg = {
|
|
command: "CHATHISTORY",
|
|
params,
|
|
};
|
|
return this.fetchBatch(msg, "chathistory").then((batch) => batch.messages);
|
|
});
|
|
return this.pendingHistory;
|
|
}
|
|
|
|
chatHistoryPageSize() {
|
|
if (this.isupport.has("CHATHISTORY")) {
|
|
let pageSize = parseInt(this.isupport.get("CHATHISTORY"), 10);
|
|
if (pageSize > 0) {
|
|
return pageSize;
|
|
}
|
|
}
|
|
return 100;
|
|
}
|
|
|
|
/* Fetch one page of history before the given date. */
|
|
fetchHistoryBefore(target, before, limit) {
|
|
let max = Math.min(limit, this.chatHistoryPageSize());
|
|
let params = ["BEFORE", target, "timestamp=" + before, max];
|
|
return this.roundtripChatHistory(params).then((messages) => {
|
|
return { more: messages.length >= max };
|
|
});
|
|
}
|
|
|
|
/* Fetch history in ascending order. */
|
|
fetchHistoryBetween(target, after, before, limit) {
|
|
let max = Math.min(limit, this.chatHistoryPageSize());
|
|
let params = ["AFTER", target, "timestamp=" + after.time, max];
|
|
return this.roundtripChatHistory(params).then((messages) => {
|
|
limit -= messages.length;
|
|
if (limit <= 0) {
|
|
throw new Error("Cannot fetch all chat history: too many messages");
|
|
}
|
|
if (messages.length == max) {
|
|
// There are still more messages to fetch
|
|
after.time = messages[messages.length - 1].tags.time;
|
|
return this.fetchHistoryBetween(target, after, before, limit);
|
|
}
|
|
return null;
|
|
});
|
|
}
|
|
|
|
fetchHistoryTargets(t1, t2) {
|
|
let msg = {
|
|
command: "CHATHISTORY",
|
|
params: ["TARGETS", "timestamp=" + t1, "timestamp=" + t2, 1000],
|
|
};
|
|
return this.fetchBatch(msg, "draft/chathistory-targets").then((batch) => {
|
|
return batch.messages.map((msg) => {
|
|
if (msg.command != "CHATHISTORY" || msg.params[0] != "TARGETS") {
|
|
throw new Error("Cannot fetch chat history targets: unexpected message " + msg);
|
|
}
|
|
return {
|
|
name: msg.params[1],
|
|
latestMessage: msg.params[2],
|
|
};
|
|
});
|
|
});
|
|
}
|
|
|
|
listBouncerNetworks() {
|
|
if (!this.enabledCaps["soju.im/bouncer-networks"]) {
|
|
return Promise.reject(new Error("Server doesn't support the BOUNCER extension"));
|
|
}
|
|
|
|
let req = { command: "BOUNCER", params: ["LISTNETWORKS"] };
|
|
return this.fetchBatch(req, "soju.im/bouncer-networks").then((batch) => {
|
|
let networks = new Map();
|
|
for (let msg of batch.messages) {
|
|
console.assert(msg.command === "BOUNCER" && msg.params[0] === "NETWORK");
|
|
let id = msg.params[1];
|
|
let params = irc.parseTags(msg.params[2]);
|
|
networks.set(id, params);
|
|
}
|
|
return networks;
|
|
});
|
|
}
|
|
|
|
maxMonitorTargets() {
|
|
if (!this.isupport.has("MONITOR")) {
|
|
return 0;
|
|
}
|
|
let v = this.isupport.get("MONITOR");
|
|
if (v === "") {
|
|
return Infinity;
|
|
}
|
|
return parseInt(v, 10);
|
|
}
|
|
|
|
monitor(target) {
|
|
if (this.monitored.has(target)) {
|
|
return;
|
|
}
|
|
|
|
this.monitored.set(target, true);
|
|
|
|
// TODO: add poll-based fallback when MONITOR is not supported
|
|
if (this.monitored.size + 1 > this.maxMonitorTargets()) {
|
|
return;
|
|
}
|
|
|
|
this.send({ command: "MONITOR", params: ["+", target] });
|
|
}
|
|
|
|
unmonitor(target) {
|
|
if (!this.monitored.has(target)) {
|
|
return;
|
|
}
|
|
|
|
this.monitored.delete(target);
|
|
|
|
if (!this.isupport.has("MONITOR")) {
|
|
return;
|
|
}
|
|
|
|
this.send({ command: "MONITOR", params: ["-", target] });
|
|
}
|
|
|
|
createBouncerNetwork(attrs) {
|
|
let msg = {
|
|
command: "BOUNCER",
|
|
params: ["ADDNETWORK", irc.formatTags(attrs)],
|
|
};
|
|
return this.roundtrip(msg, (msg) => {
|
|
if (msg.command === "BOUNCER" && msg.params[0] === "ADDNETWORK") {
|
|
return msg.params[1];
|
|
}
|
|
});
|
|
}
|
|
}
|