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180 lines
5.4 KiB
TypeScript

7 months ago
/// <reference types="node" />
import { EventEmitter } from "events";
/**
* A public ID, sent by the server at the beginning of the Socket.IO session and which can be used for private messaging
*/
export type SocketId = string;
/**
* A private ID, sent by the server at the beginning of the Socket.IO session and used for connection state recovery
* upon reconnection
*/
export type PrivateSessionId = string;
export type Room = string;
export interface BroadcastFlags {
volatile?: boolean;
compress?: boolean;
local?: boolean;
broadcast?: boolean;
binary?: boolean;
timeout?: number;
}
export interface BroadcastOptions {
rooms: Set<Room>;
except?: Set<Room>;
flags?: BroadcastFlags;
}
interface SessionToPersist {
sid: SocketId;
pid: PrivateSessionId;
rooms: Room[];
data: unknown;
}
export type Session = SessionToPersist & {
missedPackets: unknown[][];
};
export declare class Adapter extends EventEmitter {
readonly nsp: any;
rooms: Map<Room, Set<SocketId>>;
sids: Map<SocketId, Set<Room>>;
private readonly encoder;
/**
* In-memory adapter constructor.
*
* @param {Namespace} nsp
*/
constructor(nsp: any);
/**
* To be overridden
*/
init(): Promise<void> | void;
/**
* To be overridden
*/
close(): Promise<void> | void;
/**
* Returns the number of Socket.IO servers in the cluster
*
* @public
*/
serverCount(): Promise<number>;
/**
* Adds a socket to a list of room.
*
* @param {SocketId} id the socket id
* @param {Set<Room>} rooms a set of rooms
* @public
*/
addAll(id: SocketId, rooms: Set<Room>): Promise<void> | void;
/**
* Removes a socket from a room.
*
* @param {SocketId} id the socket id
* @param {Room} room the room name
*/
del(id: SocketId, room: Room): Promise<void> | void;
private _del;
/**
* Removes a socket from all rooms it's joined.
*
* @param {SocketId} id the socket id
*/
delAll(id: SocketId): void;
/**
* Broadcasts a packet.
*
* Options:
* - `flags` {Object} flags for this packet
* - `except` {Array} sids that should be excluded
* - `rooms` {Array} list of rooms to broadcast to
*
* @param {Object} packet the packet object
* @param {Object} opts the options
* @public
*/
broadcast(packet: any, opts: BroadcastOptions): void;
/**
* Broadcasts a packet and expects multiple acknowledgements.
*
* Options:
* - `flags` {Object} flags for this packet
* - `except` {Array} sids that should be excluded
* - `rooms` {Array} list of rooms to broadcast to
*
* @param {Object} packet the packet object
* @param {Object} opts the options
* @param clientCountCallback - the number of clients that received the packet
* @param ack - the callback that will be called for each client response
*
* @public
*/
broadcastWithAck(packet: any, opts: BroadcastOptions, clientCountCallback: (clientCount: number) => void, ack: (...args: any[]) => void): void;
private _encode;
/**
* Gets a list of sockets by sid.
*
* @param {Set<Room>} rooms the explicit set of rooms to check.
*/
sockets(rooms: Set<Room>): Promise<Set<SocketId>>;
/**
* Gets the list of rooms a given socket has joined.
*
* @param {SocketId} id the socket id
*/
socketRooms(id: SocketId): Set<Room> | undefined;
/**
* Returns the matching socket instances
*
* @param opts - the filters to apply
*/
fetchSockets(opts: BroadcastOptions): Promise<any[]>;
/**
* Makes the matching socket instances join the specified rooms
*
* @param opts - the filters to apply
* @param rooms - the rooms to join
*/
addSockets(opts: BroadcastOptions, rooms: Room[]): void;
/**
* Makes the matching socket instances leave the specified rooms
*
* @param opts - the filters to apply
* @param rooms - the rooms to leave
*/
delSockets(opts: BroadcastOptions, rooms: Room[]): void;
/**
* Makes the matching socket instances disconnect
*
* @param opts - the filters to apply
* @param close - whether to close the underlying connection
*/
disconnectSockets(opts: BroadcastOptions, close: boolean): void;
private apply;
private computeExceptSids;
/**
* Send a packet to the other Socket.IO servers in the cluster
* @param packet - an array of arguments, which may include an acknowledgement callback at the end
*/
serverSideEmit(packet: any[]): void;
/**
* Save the client session in order to restore it upon reconnection.
*/
persistSession(session: SessionToPersist): void;
/**
* Restore the session and find the packets that were missed by the client.
* @param pid
* @param offset
*/
restoreSession(pid: PrivateSessionId, offset: string): Promise<Session>;
}
export declare class SessionAwareAdapter extends Adapter {
readonly nsp: any;
private readonly maxDisconnectionDuration;
private sessions;
private packets;
constructor(nsp: any);
persistSession(session: SessionToPersist): void;
restoreSession(pid: PrivateSessionId, offset: string): Promise<Session>;
broadcast(packet: any, opts: BroadcastOptions): void;
}
export {};