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import { Emitter } from "@socket.io/component-emitter";
import { CloseDetails } from "./transport.js";
export interface SocketOptions {
/**
* The host that we're connecting to. Set from the URI passed when connecting
*/
host: string;
/**
* The hostname for our connection. Set from the URI passed when connecting
*/
hostname: string;
/**
* If this is a secure connection. Set from the URI passed when connecting
*/
secure: boolean;
/**
* The port for our connection. Set from the URI passed when connecting
*/
port: string | number;
/**
* Any query parameters in our uri. Set from the URI passed when connecting
*/
query: {
[key: string]: any;
};
/**
* `http.Agent` to use, defaults to `false` (NodeJS only)
*/
agent: string | boolean;
/**
* Whether the client should try to upgrade the transport from
* long-polling to something better.
* @default true
*/
upgrade: boolean;
/**
* Forces base 64 encoding for polling transport even when XHR2
* responseType is available and WebSocket even if the used standard
* supports binary.
*/
forceBase64: boolean;
/**
* The param name to use as our timestamp key
* @default 't'
*/
timestampParam: string;
/**
* Whether to add the timestamp with each transport request. Note: this
* is ignored if the browser is IE or Android, in which case requests
* are always stamped
* @default false
*/
timestampRequests: boolean;
/**
* A list of transports to try (in order). Engine.io always attempts to
* connect directly with the first one, provided the feature detection test
* for it passes.
* @default ['polling','websocket']
*/
transports: string[];
/**
* The port the policy server listens on
* @default 843
*/
policyPost: number;
/**
* If true and if the previous websocket connection to the server succeeded,
* the connection attempt will bypass the normal upgrade process and will
* initially try websocket. A connection attempt following a transport error
* will use the normal upgrade process. It is recommended you turn this on
* only when using SSL/TLS connections, or if you know that your network does
* not block websockets.
* @default false
*/
rememberUpgrade: boolean;
/**
* Are we only interested in transports that support binary?
*/
onlyBinaryUpgrades: boolean;
/**
* Timeout for xhr-polling requests in milliseconds (0) (only for polling transport)
*/
requestTimeout: number;
/**
* Transport options for Node.js client (headers etc)
*/
transportOptions: Object;
/**
* (SSL) Certificate, Private key and CA certificates to use for SSL.
* Can be used in Node.js client environment to manually specify
* certificate information.
*/
pfx: string;
/**
* (SSL) Private key to use for SSL. Can be used in Node.js client
* environment to manually specify certificate information.
*/
key: string;
/**
* (SSL) A string or passphrase for the private key or pfx. Can be
* used in Node.js client environment to manually specify certificate
* information.
*/
passphrase: string;
/**
* (SSL) Public x509 certificate to use. Can be used in Node.js client
* environment to manually specify certificate information.
*/
cert: string;
/**
* (SSL) An authority certificate or array of authority certificates to
* check the remote host against.. Can be used in Node.js client
* environment to manually specify certificate information.
*/
ca: string | string[];
/**
* (SSL) A string describing the ciphers to use or exclude. Consult the
* [cipher format list]
* (http://www.openssl.org/docs/apps/ciphers.html#CIPHER_LIST_FORMAT) for
* details on the format.. Can be used in Node.js client environment to
* manually specify certificate information.
*/
ciphers: string;
/**
* (SSL) If true, the server certificate is verified against the list of
* supplied CAs. An 'error' event is emitted if verification fails.
* Verification happens at the connection level, before the HTTP request
* is sent. Can be used in Node.js client environment to manually specify
* certificate information.
*/
rejectUnauthorized: boolean;
/**
* Headers that will be passed for each request to the server (via xhr-polling and via websockets).
* These values then can be used during handshake or for special proxies.
*/
extraHeaders?: {
[header: string]: string;
};
/**
* Whether to include credentials (cookies, authorization headers, TLS
* client certificates, etc.) with cross-origin XHR polling requests
* @default false
*/
withCredentials: boolean;
/**
* Whether to automatically close the connection whenever the beforeunload event is received.
* @default true
*/
closeOnBeforeunload: boolean;
/**
* Whether to always use the native timeouts. This allows the client to
* reconnect when the native timeout functions are overridden, such as when
* mock clocks are installed.
* @default false
*/
useNativeTimers: boolean;
/**
* weather we should unref the reconnect timer when it is
* create automatically
* @default false
*/
autoUnref: boolean;
/**
* parameters of the WebSocket permessage-deflate extension (see ws module api docs). Set to false to disable.
* @default false
*/
perMessageDeflate: {
threshold: number;
};
/**
* The path to get our client file from, in the case of the server
* serving it
* @default '/engine.io'
*/
path: string;
/**
* Either a single protocol string or an array of protocol strings. These strings are used to indicate sub-protocols,
* so that a single server can implement multiple WebSocket sub-protocols (for example, you might want one server to
* be able to handle different types of interactions depending on the specified protocol)
* @default []
*/
protocols: string | string[];
}
interface SocketReservedEvents {
open: () => void;
handshake: (data: any) => void;
packet: (packet: any) => void;
packetCreate: (packet: any) => void;
data: (data: any) => void;
message: (data: any) => void;
drain: () => void;
flush: () => void;
heartbeat: () => void;
ping: () => void;
pong: () => void;
error: (err: string | Error) => void;
upgrading: (transport: any) => void;
upgrade: (transport: any) => void;
upgradeError: (err: Error) => void;
close: (reason: string, description?: CloseDetails | Error) => void;
}
export declare class Socket extends Emitter<{}, {}, SocketReservedEvents> {
id: string;
transport: any;
binaryType: string;
private readyState;
private writeBuffer;
private prevBufferLen;
private upgrades;
private pingInterval;
private pingTimeout;
private pingTimeoutTimer;
private setTimeoutFn;
private clearTimeoutFn;
private offlineEventListener;
private upgrading;
private maxPayload?;
private readonly opts;
private readonly secure;
private readonly hostname;
private readonly port;
private readonly transports;
static priorWebsocketSuccess: boolean;
static protocol: number;
/**
* Socket constructor.
*
* @param {String|Object} uri or options
* @param {Object} opts - options
* @api public
*/
constructor(uri: any, opts?: Partial<SocketOptions>);
/**
* Creates transport of the given type.
*
* @param {String} transport name
* @return {Transport}
* @api private
*/
private createTransport;
/**
* Initializes transport to use and starts probe.
*
* @api private
*/
private open;
/**
* Sets the current transport. Disables the existing one (if any).
*
* @api private
*/
private setTransport;
/**
* Probes a transport.
*
* @param {String} transport name
* @api private
*/
private probe;
/**
* Called when connection is deemed open.
*
* @api private
*/
private onOpen;
/**
* Handles a packet.
*
* @api private
*/
private onPacket;
/**
* Called upon handshake completion.
*
* @param {Object} data - handshake obj
* @api private
*/
private onHandshake;
/**
* Sets and resets ping timeout timer based on server pings.
*
* @api private
*/
private resetPingTimeout;
/**
* Called on `drain` event
*
* @api private
*/
private onDrain;
/**
* Flush write buffers.
*
* @api private
*/
private flush;
/**
* Ensure the encoded size of the writeBuffer is below the maxPayload value sent by the server (only for HTTP
* long-polling)
*
* @private
*/
private getWritablePackets;
/**
* Sends a message.
*
* @param {String} message.
* @param {Function} callback function.
* @param {Object} options.
* @return {Socket} for chaining.
* @api public
*/
write(msg: any, options: any, fn?: any): this;
send(msg: any, options: any, fn?: any): this;
/**
* Sends a packet.
*
* @param {String} packet type.
* @param {String} data.
* @param {Object} options.
* @param {Function} callback function.
* @api private
*/
private sendPacket;
/**
* Closes the connection.
*
* @api public
*/
close(): this;
/**
* Called upon transport error
*
* @api private
*/
private onError;
/**
* Called upon transport close.
*
* @api private
*/
private onClose;
/**
* Filters upgrades, returning only those matching client transports.
*
* @param {Array} server upgrades
* @api private
*
*/
private filterUpgrades;
}
export {};