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34 lines
1.0 KiB
TypeScript
34 lines
1.0 KiB
TypeScript
import { ContentMessage } from './ContentMessage';
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import { SignalService } from '../../../../protobuf';
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import * as crypto from 'crypto';
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import { MessageParams } from '../Message';
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import { Constants } from '../../..';
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export class SessionEstablishedMessage extends ContentMessage {
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public readonly padding: Buffer;
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constructor(params: MessageParams) {
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super({ timestamp: params.timestamp, identifier: params.identifier });
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// Generate a random int from 1 and 512
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const buffer = crypto.randomBytes(1);
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// tslint:disable-next-line: no-bitwise
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const paddingLength = (new Uint8Array(buffer)[0] & 0x1ff) + 1;
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// Generate a random padding buffer of the chosen size
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this.padding = crypto.randomBytes(paddingLength);
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}
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public ttl(): number {
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return Constants.TTL_DEFAULT.SESSION_ESTABLISHED;
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}
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protected contentProto(): SignalService.Content {
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const nullMessage = new SignalService.NullMessage({});
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nullMessage.padding = this.padding;
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return new SignalService.Content({
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nullMessage,
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});
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}
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}
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