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improve execute interface to allow headers like event-UUID #110

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29 changes: 18 additions & 11 deletions src/esl/Connection.ts
Original file line number Diff line number Diff line change
Expand Up @@ -45,6 +45,10 @@ export enum ConnectionEvent
Ready = 'esl::ready',
}

export type ExecuteArg = {
'execute-app-arg'?: string,
[key: string]: string | undefined };

/**
* ESLconnection
*
Expand Down Expand Up @@ -513,11 +517,11 @@ export class Connection extends EventEmitter2
* or "-ERR [Error Message]" on failure.
*/
execute(app: string, cb?: IEventCallback): string;
execute(app: string, arg: string, cb?: IEventCallback): string;
execute(app: string, arg: string, uuid: string, cb?: IEventCallback): string;
execute(app: string, argOrCallback?: string | IEventCallback, uuidOrCallback?: string | IEventCallback, cb?: IEventCallback): string
execute(app: string, arg: ExecuteArg, cb?: IEventCallback): string;
execute(app: string, arg: ExecuteArg, uuid: string, cb?: IEventCallback): string;
execute(app: string, argOrCallback?: ExecuteArg | IEventCallback, uuidOrCallback?: string | IEventCallback, cb?: IEventCallback): string
{
let arg = '';
let arg: ExecuteArg = {};
let uniqueId = uuid.v4();

if (typeof argOrCallback === 'function')
Expand All @@ -539,12 +543,15 @@ export class Connection extends EventEmitter2
}
}

const { 'execute-app-arg': executeAppArg, ...headers }: ExecuteArg = arg;

const options: IDictionary<string> = {
'execute-app-name': app,
...headers
};

if (typeof arg !== 'undefined' && arg.toString().length > 0)
options['execute-app-arg'] = arg.toString();
if (typeof executeAppArg !== 'undefined' && executeAppArg.toString().length > 0)
options['execute-app-arg'] = executeAppArg.toString();

if (this.type === ConnectionType.Inbound)
{
Expand All @@ -568,14 +575,14 @@ export class Connection extends EventEmitter2
* "async: true" header in the message sent to the channel.
*/
executeAsync(app: string, cb?: IEventCallback): string;
executeAsync(app: string, arg: string, cb?: IEventCallback): string;
executeAsync(app: string, arg: string, uuid: string, cb?: IEventCallback): string;
executeAsync(app: string, argOrCallback?: string | IEventCallback, uuidOrCallback?: string | IEventCallback, cb?: IEventCallback): string
executeAsync(app: string, arg: ExecuteArg, cb?: IEventCallback): string;
executeAsync(app: string, arg: ExecuteArg, uuid: string, cb?: IEventCallback): string;
executeAsync(app: string, argOrCallback?: ExecuteArg | IEventCallback, uuidOrCallback?: string | IEventCallback, cb?: IEventCallback): string
{
const oldAsyncValue = this.execAsync;
this.execAsync = true;

const eventUuid = this.execute(app, argOrCallback as string, uuidOrCallback as string, cb);
const eventUuid = this.execute(app, argOrCallback as ExecuteArg, uuidOrCallback as string, cb);

this.execAsync = oldAsyncValue;

Expand Down Expand Up @@ -792,7 +799,7 @@ export class Connection extends EventEmitter2

// this method of event tracking is based on:
// http://lists.freeswitch.org/pipermail/freeswitch-users/2013-May/095329.html
const eventUuid = uuid.v4();
const eventUuid = args['Event-UUID'] ?? uuid.v4();
args['Event-UUID'] = eventUuid;

const eventName = `esl::event::CHANNEL_EXECUTE_COMPLETE::${uniqueId}`;
Expand Down
2 changes: 1 addition & 1 deletion src/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@
* ESL Object
* @see https://freeswitch.org/confluence/display/FREESWITCH/Event+Socket+Library#EventSocketLibrary-ESLObject
*/
export { Connection } from './esl/Connection';
export { Connection, ExecuteArg, IEventCallback } from './esl/Connection';
export { Event } from './esl/Event';
export { Parser } from './esl/Parser';
export { Server } from './esl/Server';
Expand Down
22 changes: 15 additions & 7 deletions test/spec/esl/connection.test.ts
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,7 @@ import * as sinon from 'sinon';
import { expect } from 'chai';
import { getEchoServerAndSocket, getInboundConnection, ITestSendArgs } from '../../fixtures/helpers';
import { setupSinonChai } from '../../fixtures/setup';
import { Connection } from '../../../src/esl/Connection';
import { Connection, ExecuteArg } from '../../../src/esl/Connection';
import { ICallback } from '../../../src/utils';
import { Event } from '../../../src/esl/Event';
import { cmdReply } from '../../fixtures/data';
Expand Down Expand Up @@ -129,7 +129,9 @@ describe('esl.Connection', function ()

it('Invokes the callback', function (done)
{
testChannelExecute(testConnection, 'playback', 'foo', id0, function (evt)
testChannelExecute(testConnection, 'playback', {
'execute-app-arg': 'foo'
}, id0, function (evt)
{
expect(evt.getHeader('Application')).to.equal('playback');
done();
Expand All @@ -138,7 +140,9 @@ describe('esl.Connection', function ()

it('Invokes the callback only once for the same session', function (done)
{
testChannelExecute(testConnection, 'hangup', '', id0, function (evt)
testChannelExecute(testConnection, 'hangup', {
'execute-app-arg': ''
}, id0, function (evt)
{
expect(evt.getHeader('Application')).to.equal('hangup');
done();
Expand All @@ -147,7 +151,9 @@ describe('esl.Connection', function ()

it('Invokes the callback again for a new session', function (done)
{
testChannelExecute(testConnection, 'hangup', '', id1, function (evt)
testChannelExecute(testConnection, 'hangup', {
'execute-app-arg': '',
}, id1, function (evt)
{
expect(evt.getHeader('Application')).to.equal('hangup');
done();
Expand Down Expand Up @@ -456,7 +462,7 @@ function sendChannelExecuteResponse(conn: Connection, appUuid: string, appName:
conn.socket.write(resp);
}

function testChannelExecute(conn: Connection, appName: string, appArg: string, requestId: string, cb: ICallback<Event>)
function testChannelExecute(conn: Connection, appName: string, appArg: ExecuteArg, requestId: string, cb: ICallback<Event>)
{
conn.socket.once('data', function (data)
{
Expand All @@ -468,9 +474,11 @@ function testChannelExecute(conn: Connection, appName: string, appArg: string, r
expect(lines).to.contain(`execute-app-name: ${appName}`);
expect(lines.some(x => x.includes('Event-UUID: '))).to.be.true;

if (appArg)
const arg: string | undefined = appArg['execute-app-arg'];

if (arg)
{
expect(lines).to.contain(`execute-app-arg: ${appArg}`);
expect(lines).to.contain(`execute-app-arg: ${arg}`);
}
else
{
Expand Down