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Implement websocket server

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This commit is contained in:
David Majdandžić
2023-03-28 21:53:07 +02:00
parent c4d5a62a46
commit 44348e7a85
10 changed files with 493 additions and 32 deletions
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58
src/Client/Client.ts
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@@ -4,7 +4,7 @@ import {JobEvents} from "../Job/JobEvents";
import Logger from "../Logger";
import PersistentPromise from "../PersistentPromise";
import {SmppSession} from "../SmppSession";
import {ClientEvents} from "./ClientEvents";
import {ClientEvent} from "./ClientEvent";
import ClientStatus from "./ClientStatus";
const NanoTimer = require('nanotimer');
@@ -16,13 +16,14 @@ const MESSAGE_SEND_UPDATE_DELAY: number = Number(process.env.MESSAGE_SEND_UPDATE
export class Client implements SmppSession {
defaultSingleJob!: Job;
defaultMultipleJob!: Job;
private readonly eventEmitter: EventEmitter;
UPDATE_WS: string = "UPDATE_WS";
private readonly eventEmitter: EventEmitter = new EventEmitter();
private readonly logger: Logger;
private readonly _id: number;
private session?: any;
private connectPromise: PersistentPromise | null = null;
private bindPromise: PersistentPromise | null = null;
// TODO: Implement close promise
private bindPromise: PersistentPromise | null = null;
// Apparently the sessions are not closed on a dime but instead a .close() call causes eventSessionClose
private sendTimer: any | null = null;
private counterUpdateTimer: any | null = null;
@@ -33,10 +34,14 @@ export class Client implements SmppSession {
this._username = username;
this._password = password;
this.eventEmitter = new EventEmitter();
this.logger = new Logger(`Client-${id}`);
this.status = ClientStatus.NOT_CONNECTED;
this.eventEmitter.on(ClientEvent.STATE_CHANGED, () => this.updateWs(ClientEvent.STATE_CHANGED));
this.eventEmitter.on(ClientEvent.STATUS_CHANGED, () => this.updateWs(ClientEvent.STATUS_CHANGED));
this.eventEmitter.on(ClientEvent.ANY_PDU, (pdu: any) => this.updateWs(ClientEvent.ANY_PDU, [pdu]));
this.eventEmitter.on(ClientEvent.MESSAGE_SEND_COUNTER_UPDATE_EVENT, (count: number) => this.updateWs(ClientEvent.MESSAGE_SEND_COUNTER_UPDATE_EVENT, [count]));
this.initialize();
}
@@ -62,8 +67,33 @@ export class Client implements SmppSession {
set status(value: ClientStatus) {
this._status = value;
this.eventEmitter.emit(ClientEvents.STATUS_CHANGED, this._status);
this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize());
this.eventEmitter.emit(ClientEvent.STATUS_CHANGED, this._status);
this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize());
}
updateWs(event: string, args?: any[]): void {
this.logger.log1(`Update WS: ${event}`);
let message: {
type: string,
data?: string
} = {
type: event,
};
switch (event) {
case ClientEvent.STATE_CHANGED:
message.data = JSON.stringify(this.serialize());
break;
case ClientEvent.STATUS_CHANGED:
message.data = JSON.stringify(this._status);
break;
case ClientEvent.ANY_PDU:
message.data = JSON.stringify(args![0]);
break;
case ClientEvent.MESSAGE_SEND_COUNTER_UPDATE_EVENT:
message.data = JSON.stringify(args![0]);
break;
}
this.eventEmitter.emit(this.UPDATE_WS, message);
}
getUrl(): string {
@@ -72,14 +102,14 @@ export class Client implements SmppSession {
setDefaultSingleJob(job: Job): void {
this.defaultSingleJob = job;
this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize());
job.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize()));
this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize());
job.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize()));
}
setDefaultMultipleJob(job: Job): void {
this.defaultMultipleJob = job;
this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize());
job.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize()));
this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize());
job.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize()));
}
getDefaultSingleJob(): Job {
@@ -93,8 +123,8 @@ export class Client implements SmppSession {
initialize(): void {
this.defaultSingleJob = Job.createEmptySingle();
this.defaultMultipleJob = Job.createEmptyMultiple();
this.defaultSingleJob.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize()));
this.defaultMultipleJob.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvents.STATE_CHANGED, this.serialize()));
this.defaultSingleJob.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize()));
this.defaultMultipleJob.on(JobEvents.STATE_CHANGED, () => this.eventEmitter.emit(ClientEvent.STATE_CHANGED, this.serialize()));
}
doConnect(): PersistentPromise {
@@ -180,7 +210,7 @@ export class Client implements SmppSession {
this.counterUpdateTimer = new NanoTimer();
this.counterUpdateTimer.setInterval(() => {
if (previousUpdateCounter !== counter) {
this.eventEmitter.emit(ClientEvents.MESSAGE_SEND_COUNTER_UPDATE_EVENT, counter);
this.eventEmitter.emit(ClientEvent.MESSAGE_SEND_COUNTER_UPDATE_EVENT, counter);
previousUpdateCounter = counter;
}
}, '', `${MESSAGE_SEND_UPDATE_DELAY / 1000} s`);
@@ -255,7 +285,7 @@ export class Client implements SmppSession {
private eventAnyPdu(pdu: any): void {
this.logger.log6(`Client-${this._id} received PDU: ${JSON.stringify(pdu)}`);
this.eventEmitter.emit(ClientEvents.ANY_PDU, pdu);
this.eventEmitter.emit(ClientEvent.ANY_PDU, pdu);
}
private eventSessionError(pdu: any): void {