lix-website/themes/lix/assets/bootstrap/node_modules/socket.io/dist/socket.d.ts
2024-04-26 22:49:34 -06:00

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/// <reference types="node" />
/// <reference types="node" />
import { Packet } from "socket.io-parser";
import { AllButLast, DecorateAcknowledgements, DecorateAcknowledgementsWithMultipleResponses, DefaultEventsMap, EventNames, EventNamesWithAck, EventParams, EventsMap, FirstNonErrorArg, Last, StrictEventEmitter } from "./typed-events";
import type { Client } from "./client";
import type { Namespace } from "./namespace";
import type { IncomingHttpHeaders, IncomingMessage } from "http";
import type { Room, Session, SocketId } from "socket.io-adapter";
import type { ParsedUrlQuery } from "querystring";
import { BroadcastOperator } from "./broadcast-operator";
export declare type DisconnectReason = "transport error" | "transport close" | "forced close" | "ping timeout" | "parse error" | "server shutting down" | "forced server close" | "client namespace disconnect" | "server namespace disconnect";
export interface SocketReservedEventsMap {
disconnect: (reason: DisconnectReason, description?: any) => void;
disconnecting: (reason: DisconnectReason, description?: any) => void;
error: (err: Error) => void;
}
export interface EventEmitterReservedEventsMap {
newListener: (eventName: string | Symbol, listener: (...args: any[]) => void) => void;
removeListener: (eventName: string | Symbol, listener: (...args: any[]) => void) => void;
}
export declare const RESERVED_EVENTS: ReadonlySet<string | Symbol>;
/**
* The handshake details
*/
export interface Handshake {
/**
* The headers sent as part of the handshake
*/
headers: IncomingHttpHeaders;
/**
* The date of creation (as string)
*/
time: string;
/**
* The ip of the client
*/
address: string;
/**
* Whether the connection is cross-domain
*/
xdomain: boolean;
/**
* Whether the connection is secure
*/
secure: boolean;
/**
* The date of creation (as unix timestamp)
*/
issued: number;
/**
* The request URL string
*/
url: string;
/**
* The query object
*/
query: ParsedUrlQuery;
/**
* The auth object
*/
auth: {
[key: string]: any;
};
}
/**
* `[eventName, ...args]`
*/
export declare type Event = [string, ...any[]];
/**
* This is the main object for interacting with a client.
*
* A Socket belongs to a given {@link Namespace} and uses an underlying {@link Client} to communicate.
*
* Within each {@link Namespace}, you can also define arbitrary channels (called "rooms") that the {@link Socket} can
* join and leave. That provides a convenient way to broadcast to a group of socket instances.
*
* @example
* io.on("connection", (socket) => {
* console.log(`socket ${socket.id} connected`);
*
* // send an event to the client
* socket.emit("foo", "bar");
*
* socket.on("foobar", () => {
* // an event was received from the client
* });
*
* // join the room named "room1"
* socket.join("room1");
*
* // broadcast to everyone in the room named "room1"
* io.to("room1").emit("hello");
*
* // upon disconnection
* socket.on("disconnect", (reason) => {
* console.log(`socket ${socket.id} disconnected due to ${reason}`);
* });
* });
*/
export declare class Socket<ListenEvents extends EventsMap = DefaultEventsMap, EmitEvents extends EventsMap = ListenEvents, ServerSideEvents extends EventsMap = DefaultEventsMap, SocketData = any> extends StrictEventEmitter<ListenEvents, EmitEvents, SocketReservedEventsMap> {
readonly nsp: Namespace<ListenEvents, EmitEvents, ServerSideEvents>;
readonly client: Client<ListenEvents, EmitEvents, ServerSideEvents>;
/**
* An unique identifier for the session.
*/
readonly id: SocketId;
/**
* Whether the connection state was recovered after a temporary disconnection. In that case, any missed packets will
* be transmitted to the client, the data attribute and the rooms will be restored.
*/
readonly recovered: boolean;
/**
* The handshake details.
*/
readonly handshake: Handshake;
/**
* Additional information that can be attached to the Socket instance and which will be used in the
* {@link Server.fetchSockets()} method.
*/
data: SocketData;
/**
* Whether the socket is currently connected or not.
*
* @example
* io.use((socket, next) => {
* console.log(socket.connected); // false
* next();
* });
*
* io.on("connection", (socket) => {
* console.log(socket.connected); // true
* });
*/
connected: boolean;
/**
* The session ID, which must not be shared (unlike {@link id}).
*
* @private
*/
private readonly pid;
private readonly server;
private readonly adapter;
private acks;
private fns;
private flags;
private _anyListeners?;
private _anyOutgoingListeners?;
/**
* Interface to a `Client` for a given `Namespace`.
*
* @param {Namespace} nsp
* @param {Client} client
* @param {Object} auth
* @package
*/
constructor(nsp: Namespace<ListenEvents, EmitEvents, ServerSideEvents>, client: Client<ListenEvents, EmitEvents, ServerSideEvents>, auth: Record<string, unknown>, previousSession?: Session);
/**
* Builds the `handshake` BC object
*
* @private
*/
private buildHandshake;
/**
* Emits to this client.
*
* @example
* io.on("connection", (socket) => {
* socket.emit("hello", "world");
*
* // all serializable datastructures are supported (no need to call JSON.stringify)
* socket.emit("hello", 1, "2", { 3: ["4"], 5: Buffer.from([6]) });
*
* // with an acknowledgement from the client
* socket.emit("hello", "world", (val) => {
* // ...
* });
* });
*
* @return Always returns `true`.
*/
emit<Ev extends EventNames<EmitEvents>>(ev: Ev, ...args: EventParams<EmitEvents, Ev>): boolean;
/**
* Emits an event and waits for an acknowledgement
*
* @example
* io.on("connection", async (socket) => {
* // without timeout
* const response = await socket.emitWithAck("hello", "world");
*
* // with a specific timeout
* try {
* const response = await socket.timeout(1000).emitWithAck("hello", "world");
* } catch (err) {
* // the client did not acknowledge the event in the given delay
* }
* });
*
* @return a Promise that will be fulfilled when the client acknowledges the event
*/
emitWithAck<Ev extends EventNamesWithAck<EmitEvents>>(ev: Ev, ...args: AllButLast<EventParams<EmitEvents, Ev>>): Promise<FirstNonErrorArg<Last<EventParams<EmitEvents, Ev>>>>;
/**
* @private
*/
private registerAckCallback;
/**
* Targets a room when broadcasting.
*
* @example
* io.on("connection", (socket) => {
* // the “foo” event will be broadcast to all connected clients in the “room-101” room, except this socket
* socket.to("room-101").emit("foo", "bar");
*
* // the code above is equivalent to:
* io.to("room-101").except(socket.id).emit("foo", "bar");
*
* // with an array of rooms (a client will be notified at most once)
* socket.to(["room-101", "room-102"]).emit("foo", "bar");
*
* // with multiple chained calls
* socket.to("room-101").to("room-102").emit("foo", "bar");
* });
*
* @param room - a room, or an array of rooms
* @return a new {@link BroadcastOperator} instance for chaining
*/
to(room: Room | Room[]): BroadcastOperator<DecorateAcknowledgementsWithMultipleResponses<EmitEvents>, SocketData>;
/**
* Targets a room when broadcasting. Similar to `to()`, but might feel clearer in some cases:
*
* @example
* io.on("connection", (socket) => {
* // disconnect all clients in the "room-101" room, except this socket
* socket.in("room-101").disconnectSockets();
* });
*
* @param room - a room, or an array of rooms
* @return a new {@link BroadcastOperator} instance for chaining
*/
in(room: Room | Room[]): BroadcastOperator<DecorateAcknowledgementsWithMultipleResponses<EmitEvents>, SocketData>;
/**
* Excludes a room when broadcasting.
*
* @example
* io.on("connection", (socket) => {
* // the "foo" event will be broadcast to all connected clients, except the ones that are in the "room-101" room
* // and this socket
* socket.except("room-101").emit("foo", "bar");
*
* // with an array of rooms
* socket.except(["room-101", "room-102"]).emit("foo", "bar");
*
* // with multiple chained calls
* socket.except("room-101").except("room-102").emit("foo", "bar");
* });
*
* @param room - a room, or an array of rooms
* @return a new {@link BroadcastOperator} instance for chaining
*/
except(room: Room | Room[]): BroadcastOperator<DecorateAcknowledgementsWithMultipleResponses<EmitEvents>, SocketData>;
/**
* Sends a `message` event.
*
* This method mimics the WebSocket.send() method.
*
* @see https://developer.mozilla.org/en-US/docs/Web/API/WebSocket/send
*
* @example
* io.on("connection", (socket) => {
* socket.send("hello");
*
* // this is equivalent to
* socket.emit("message", "hello");
* });
*
* @return self
*/
send(...args: EventParams<EmitEvents, "message">): this;
/**
* Sends a `message` event. Alias of {@link send}.
*
* @return self
*/
write(...args: EventParams<EmitEvents, "message">): this;
/**
* Writes a packet.
*
* @param {Object} packet - packet object
* @param {Object} opts - options
* @private
*/
private packet;
/**
* Joins a room.
*
* @example
* io.on("connection", (socket) => {
* // join a single room
* socket.join("room1");
*
* // join multiple rooms
* socket.join(["room1", "room2"]);
* });
*
* @param {String|Array} rooms - room or array of rooms
* @return a Promise or nothing, depending on the adapter
*/
join(rooms: Room | Array<Room>): Promise<void> | void;
/**
* Leaves a room.
*
* @example
* io.on("connection", (socket) => {
* // leave a single room
* socket.leave("room1");
*
* // leave multiple rooms
* socket.leave("room1").leave("room2");
* });
*
* @param {String} room
* @return a Promise or nothing, depending on the adapter
*/
leave(room: string): Promise<void> | void;
/**
* Leave all rooms.
*
* @private
*/
private leaveAll;
/**
* Called by `Namespace` upon successful
* middleware execution (ie: authorization).
* Socket is added to namespace array before
* call to join, so adapters can access it.
*
* @private
*/
_onconnect(): void;
/**
* Called with each packet. Called by `Client`.
*
* @param {Object} packet
* @private
*/
_onpacket(packet: Packet): void;
/**
* Called upon event packet.
*
* @param {Packet} packet - packet object
* @private
*/
private onevent;
/**
* Produces an ack callback to emit with an event.
*
* @param {Number} id - packet id
* @private
*/
private ack;
/**
* Called upon ack packet.
*
* @private
*/
private onack;
/**
* Called upon client disconnect packet.
*
* @private
*/
private ondisconnect;
/**
* Handles a client error.
*
* @private
*/
_onerror(err: Error): void;
/**
* Called upon closing. Called by `Client`.
*
* @param {String} reason
* @param description
* @throw {Error} optional error object
*
* @private
*/
_onclose(reason: DisconnectReason, description?: any): this | undefined;
/**
* Makes the socket leave all the rooms it was part of and prevents it from joining any other room
*
* @private
*/
_cleanup(): void;
/**
* Produces an `error` packet.
*
* @param {Object} err - error object
*
* @private
*/
_error(err: any): void;
/**
* Disconnects this client.
*
* @example
* io.on("connection", (socket) => {
* // disconnect this socket (the connection might be kept alive for other namespaces)
* socket.disconnect();
*
* // disconnect this socket and close the underlying connection
* socket.disconnect(true);
* })
*
* @param {Boolean} close - if `true`, closes the underlying connection
* @return self
*/
disconnect(close?: boolean): this;
/**
* Sets the compress flag.
*
* @example
* io.on("connection", (socket) => {
* socket.compress(false).emit("hello");
* });
*
* @param {Boolean} compress - if `true`, compresses the sending data
* @return {Socket} self
*/
compress(compress: boolean): this;
/**
* Sets a modifier for a subsequent event emission that the event data may be lost if the client is not ready to
* receive messages (because of network slowness or other issues, or because theyre connected through long polling
* and is in the middle of a request-response cycle).
*
* @example
* io.on("connection", (socket) => {
* socket.volatile.emit("hello"); // the client may or may not receive it
* });
*
* @return {Socket} self
*/
get volatile(): this;
/**
* Sets a modifier for a subsequent event emission that the event data will only be broadcast to every sockets but the
* sender.
*
* @example
* io.on("connection", (socket) => {
* // the “foo” event will be broadcast to all connected clients, except this socket
* socket.broadcast.emit("foo", "bar");
* });
*
* @return a new {@link BroadcastOperator} instance for chaining
*/
get broadcast(): BroadcastOperator<DecorateAcknowledgementsWithMultipleResponses<EmitEvents>, SocketData>;
/**
* Sets a modifier for a subsequent event emission that the event data will only be broadcast to the current node.
*
* @example
* io.on("connection", (socket) => {
* // the “foo” event will be broadcast to all connected clients on this node, except this socket
* socket.local.emit("foo", "bar");
* });
*
* @return a new {@link BroadcastOperator} instance for chaining
*/
get local(): BroadcastOperator<DecorateAcknowledgementsWithMultipleResponses<EmitEvents>, SocketData>;
/**
* Sets a modifier for a subsequent event emission that the callback will be called with an error when the
* given number of milliseconds have elapsed without an acknowledgement from the client:
*
* @example
* io.on("connection", (socket) => {
* socket.timeout(5000).emit("my-event", (err) => {
* if (err) {
* // the client did not acknowledge the event in the given delay
* }
* });
* });
*
* @returns self
*/
timeout(timeout: number): Socket<ListenEvents, DecorateAcknowledgements<EmitEvents>, ServerSideEvents, SocketData>;
/**
* Dispatch incoming event to socket listeners.
*
* @param {Array} event - event that will get emitted
* @private
*/
private dispatch;
/**
* Sets up socket middleware.
*
* @example
* io.on("connection", (socket) => {
* socket.use(([event, ...args], next) => {
* if (isUnauthorized(event)) {
* return next(new Error("unauthorized event"));
* }
* // do not forget to call next
* next();
* });
*
* socket.on("error", (err) => {
* if (err && err.message === "unauthorized event") {
* socket.disconnect();
* }
* });
* });
*
* @param {Function} fn - middleware function (event, next)
* @return {Socket} self
*/
use(fn: (event: Event, next: (err?: Error) => void) => void): this;
/**
* Executes the middleware for an incoming event.
*
* @param {Array} event - event that will get emitted
* @param {Function} fn - last fn call in the middleware
* @private
*/
private run;
/**
* Whether the socket is currently disconnected
*/
get disconnected(): boolean;
/**
* A reference to the request that originated the underlying Engine.IO Socket.
*/
get request(): IncomingMessage;
/**
* A reference to the underlying Client transport connection (Engine.IO Socket object).
*
* @example
* io.on("connection", (socket) => {
* console.log(socket.conn.transport.name); // prints "polling" or "websocket"
*
* socket.conn.once("upgrade", () => {
* console.log(socket.conn.transport.name); // prints "websocket"
* });
* });
*/
get conn(): import("engine.io").Socket;
/**
* Returns the rooms the socket is currently in.
*
* @example
* io.on("connection", (socket) => {
* console.log(socket.rooms); // Set { <socket.id> }
*
* socket.join("room1");
*
* console.log(socket.rooms); // Set { <socket.id>, "room1" }
* });
*/
get rooms(): Set<Room>;
/**
* Adds a listener that will be fired when any event is received. The event name is passed as the first argument to
* the callback.
*
* @example
* io.on("connection", (socket) => {
* socket.onAny((event, ...args) => {
* console.log(`got event ${event}`);
* });
* });
*
* @param listener
*/
onAny(listener: (...args: any[]) => void): this;
/**
* Adds a listener that will be fired when any event is received. The event name is passed as the first argument to
* the callback. The listener is added to the beginning of the listeners array.
*
* @param listener
*/
prependAny(listener: (...args: any[]) => void): this;
/**
* Removes the listener that will be fired when any event is received.
*
* @example
* io.on("connection", (socket) => {
* const catchAllListener = (event, ...args) => {
* console.log(`got event ${event}`);
* }
*
* socket.onAny(catchAllListener);
*
* // remove a specific listener
* socket.offAny(catchAllListener);
*
* // or remove all listeners
* socket.offAny();
* });
*
* @param listener
*/
offAny(listener?: (...args: any[]) => void): this;
/**
* Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
* e.g. to remove listeners.
*/
listenersAny(): ((...args: any[]) => void)[];
/**
* Adds a listener that will be fired when any event is sent. The event name is passed as the first argument to
* the callback.
*
* Note: acknowledgements sent to the client are not included.
*
* @example
* io.on("connection", (socket) => {
* socket.onAnyOutgoing((event, ...args) => {
* console.log(`sent event ${event}`);
* });
* });
*
* @param listener
*/
onAnyOutgoing(listener: (...args: any[]) => void): this;
/**
* Adds a listener that will be fired when any event is emitted. The event name is passed as the first argument to the
* callback. The listener is added to the beginning of the listeners array.
*
* @example
* io.on("connection", (socket) => {
* socket.prependAnyOutgoing((event, ...args) => {
* console.log(`sent event ${event}`);
* });
* });
*
* @param listener
*/
prependAnyOutgoing(listener: (...args: any[]) => void): this;
/**
* Removes the listener that will be fired when any event is sent.
*
* @example
* io.on("connection", (socket) => {
* const catchAllListener = (event, ...args) => {
* console.log(`sent event ${event}`);
* }
*
* socket.onAnyOutgoing(catchAllListener);
*
* // remove a specific listener
* socket.offAnyOutgoing(catchAllListener);
*
* // or remove all listeners
* socket.offAnyOutgoing();
* });
*
* @param listener - the catch-all listener
*/
offAnyOutgoing(listener?: (...args: any[]) => void): this;
/**
* Returns an array of listeners that are listening for any event that is specified. This array can be manipulated,
* e.g. to remove listeners.
*/
listenersAnyOutgoing(): ((...args: any[]) => void)[];
/**
* Notify the listeners for each packet sent (emit or broadcast)
*
* @param packet
*
* @private
*/
private notifyOutgoingListeners;
private newBroadcastOperator;
}