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import { ConnectionServiceConfig, getConnectionService } from './services/connection-service';
import { Connection, translateConnection } from './services/connection/connection';
import { getDefaultWebRTC } from './services/connection/web-rtc';
import { getHandleService, HandleServiceConfig } from './services/handle-service';
import { getAnswerCallHandler } from './services/handle/answer-call-handler';
import { getCloseCallHandler } from './services/handle/close-call-handler';
import { getDialCallHandler } from './services/handle/dial-call-handler';
import { getIceCallHandler } from './services/handle/ice-call-handler';
import { getOfferCallHandler } from './services/handle/offer-call-handler';
import { LoggerServiceConfig } from './services/logger-service';
import { getPushService, PushServiceConfig } from './services/push-service';
import { getSessionService, SessionServiceConfig } from './services/session-service';
import { getSignalRService, SignalRServiceConfig } from './services/signalr-service';
import { getTimeService } from './services/time-service';
import { getWorkerService, WorkerServiceConfig } from './services/worker-service';
import { getApiClient } from './utils/api-client';
import { getBase64 } from './utils/base64';
import { CryptoKeyPair, getCryptography } from './utils/cryptography';
import { Logger } from './utils/logger';
import { getUtf8 } from './utils/utf8';
import { urlBase64ToUint8Array } from './utils/web-push-helpers';
/**
* Configuration interface for the Whisper messenger.
* Combines configuration options from all services used by Whisper.
*/
export type WhisperConfig = {
/**
* Optional callback triggered when Whisper may work unstably.
* Called when certain required features (like notifications) are unavailable.
*
* @param reason - Description of why the application may work unstably
* @returns Promise that resolves when the warning has been acknowledged
*/
onMayWorkUnstably?: (reason: string) => Promise<void>;
} & LoggerServiceConfig &
SignalRServiceConfig &
WorkerServiceConfig &
PushServiceConfig &
SessionServiceConfig &
CallServiceConfig &
ConnectionServiceConfig &
HandleServiceConfig;
/**
* Main interface for the Whisper messenger.
* Provides methods for managing connections and accessing messenger functionality.
*/
export interface Whisper {
/**
* Gets the public key of the current user.
* This is the user's identity in the messenger.
*
* @returns The user's public key as a string, or undefined if not initialized
*/
get publicKey(): string | undefined;
/**
* Gets the current server time.
* Used for synchronizing timestamps across the system.
*
* @returns Current server time in milliseconds
*/
get serverTime(): number;
/**
* Gets all active connections managed by the messenger.
*
* @returns Array of all connection objects
*/
get connections(): Connection[];
/**
* Gets or creates a connection with a peer identified by their public key.
* If a connection already exists, it is returned; otherwise, a new outgoing connection is created.
*
* @param publicKeyBase64 - Public key of the peer to connect to
* @returns Connection object for communicating with the peer
*/
get(publicKeyBase64: string): Connection;
/**
* Terminates and removes a connection with a peer.
*
* @param publicKeyBase64 - Public key of the peer whose connection should be removed
*/
delete(publicKeyBase64: string): void;
/**
* Shows a browser notification to the user.
*
* @param title - Title of the notification
* @param options - Additional notification options
* @returns Boolean indicating if the notification was successfully shown
*/
showNotification(title: string, options?: NotificationOptions): boolean;
}
/**
* Interface for initializing and creating Whisper messenger instances.
* Provides factory methods for creating and configuring the messenger.
*/
export interface WhisperPrototype {
/**
* Initializes a new Whisper messenger instance with the provided configuration.
* Sets up all required services and establishes necessary connections.
*
* @param config - Configuration options for all services
* @returns Promise resolving to a configured Whisper instance
*/
initialize(config: WhisperConfig): Promise<Whisper>;
/**
* Generates a new signing key pair for user authentication.
*
* @returns A cryptographic key pair for signing operations
*/
generateSigningKeyPair(): CryptoKeyPair;
}
/**
* Factory function that creates and returns an implementation of the WhisperPrototype interface.
* Sets up the dependency injection chain for all required services.
*
* @param logger - Logger instance for error and debugging information
* @returns An implementation of the WhisperPrototype interface
*/
export function getPrototype(logger: Logger): WhisperPrototype {
const base64 = getBase64();
const utf8 = getUtf8();
const timeService = getTimeService(logger);
const cryptography = getCryptography(logger);
const apiClient = getApiClient(logger);
const signalRService = getSignalRService(logger);
const workerService = getWorkerService(logger);
const sessionService = getSessionService(logger, base64);
const pushService = getPushService(logger, workerService, base64);
const callService = getCallService(
logger,
timeService,
sessionService,
apiClient,
signalRService,
base64,
utf8,
cryptography,
);
const connectionService = getConnectionService(
logger,
timeService,
callService,
sessionService,
base64,
utf8,
cryptography,
);
const dialCallHandler = getDialCallHandler(
logger,
timeService,
sessionService,
base64,
utf8,
cryptography,
connectionService,
);
const offerCallHandler = getOfferCallHandler(
logger,
timeService,
sessionService,
base64,
utf8,
cryptography,
connectionService,
);
const answerCallHandler = getAnswerCallHandler(
logger,
timeService,
sessionService,
base64,
utf8,
cryptography,
connectionService,
);
const iceCallHandler = getIceCallHandler(
logger,
timeService,
sessionService,
base64,
utf8,
cryptography,
connectionService,
);
const closeCallHandler = getCloseCallHandler(
logger,
timeService,
sessionService,
base64,
utf8,
cryptography,
connectionService,
);
const handleService = getHandleService(
logger,
dialCallHandler,
offerCallHandler,
answerCallHandler,
iceCallHandler,
closeCallHandler,
);
let busy = false;
let initializationResolver: ((value: Whisper) => void) | undefined;
let initializationPromise = new Promise<Whisper>((resolve) => {
initializationResolver = resolve;
});
const whisper: Whisper = {
get publicKey(): string | undefined {
return sessionService.signingPublicKeyBase64Safe;
},
get serverTime(): number {
return timeService.serverTime;
},
get connections(): Connection[] {
return connectionService.connections.map(translateConnection);
},
get(publicKeyBase64: string): Connection {
const connection = connectionService.getConnection(publicKeyBase64);
return translateConnection(connection || connectionService.createOutgoing(publicKeyBase64));
},
delete(publicKeyBase64: string) {
connectionService.deleteConnection(publicKeyBase64);
},
showNotification(title: string, options?: NotificationOptions) {
return pushService.showNotification(title, options);
},
};
return {
async initialize(config: WhisperConfig): Promise<Whisper> {
if (busy) {
logger.warn('[whisper] Parallel initialization attempt.');
await initializationPromise;
return whisper;
}
busy = true;
handleService.initialize(config);
connectionService.initialize({
...config,
webRTC: getDefaultWebRTC(),
});
callService.initialize({
...config,
navigator: window.navigator,
});
await workerService.initialize({
...config,
navigator: window.navigator,
});
await sessionService.initialize(config);
await pushService.initialize({
...config,
onCall: handleService.call,
notification: window.Notification,
pushManager: window.PushManager,
urlBase64ToUint8Array: urlBase64ToUint8Array,
});
const subscription = await pushService.getSubscription();
await signalRService.initialize({
...config,
onCall: handleService.call,
onReady: async () => {
await callService.update(sessionService.signingPublicKeyBase64, subscription);
},
});
workerService.controller?.postMessage({ type: 'CLIENT_READY' });
setInterval(async () => {
await callService.update(sessionService.signingPublicKeyBase64, subscription);
}, 60 * 1000);
if (!subscription) {
if (config.onMayWorkUnstably) {
await config.onMayWorkUnstably(
'Due to notifications unavailable, Whisper Messenger may work unstably.',
);
}
}
logger.log('[whisper] Initialized.');
initializationResolver?.call(this, whisper);
busy = false;
return whisper;
},
generateSigningKeyPair(): CryptoKeyPair {
return cryptography.generateSigningKeyPair();
},
};
}
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