545563e776
- Complete NestJS TypeScript implementation with WebSocket support - Direct messaging (DM) and group chat functionality - End-to-end encryption with AES encryption and key pairs - Media file support (images, videos, audio, documents) up to 100MB - Push notifications with Firebase Cloud Messaging integration - Mention alerts and real-time typing indicators - User authentication with JWT and Passport - SQLite database with TypeORM entities and relationships - Comprehensive API documentation with Swagger/OpenAPI - File upload handling with secure access control - Online/offline status tracking and presence management - Message editing, deletion, and reply functionality - Notification management with automatic cleanup - Health check endpoint for monitoring - CORS configuration for cross-origin requests - Environment-based configuration management - Structured for Flutter SDK integration Features implemented: ✅ Real-time messaging with Socket.IO ✅ User registration and authentication ✅ Direct messages and group chats ✅ Media file uploads and management ✅ End-to-end encryption ✅ Push notifications ✅ Mention alerts ✅ Typing indicators ✅ Message read receipts ✅ Online status tracking ✅ File access control ✅ Comprehensive API documentation Ready for Flutter SDK development and production deployment.
62 lines
1.5 KiB
JavaScript
62 lines
1.5 KiB
JavaScript
'use strict';
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const {constants: BufferConstants} = require('buffer');
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const stream = require('stream');
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const {promisify} = require('util');
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const bufferStream = require('./buffer-stream');
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const streamPipelinePromisified = promisify(stream.pipeline);
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class MaxBufferError extends Error {
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constructor() {
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super('maxBuffer exceeded');
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this.name = 'MaxBufferError';
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}
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}
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async function getStream(inputStream, options) {
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if (!inputStream) {
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throw new Error('Expected a stream');
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}
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options = {
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maxBuffer: Infinity,
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...options
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};
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const {maxBuffer} = options;
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const stream = bufferStream(options);
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await new Promise((resolve, reject) => {
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const rejectPromise = error => {
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// Don't retrieve an oversized buffer.
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if (error && stream.getBufferedLength() <= BufferConstants.MAX_LENGTH) {
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error.bufferedData = stream.getBufferedValue();
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}
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reject(error);
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};
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(async () => {
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try {
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await streamPipelinePromisified(inputStream, stream);
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resolve();
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} catch (error) {
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rejectPromise(error);
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}
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})();
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stream.on('data', () => {
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if (stream.getBufferedLength() > maxBuffer) {
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rejectPromise(new MaxBufferError());
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}
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});
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});
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return stream.getBufferedValue();
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}
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module.exports = getStream;
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module.exports.buffer = (stream, options) => getStream(stream, {...options, encoding: 'buffer'});
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module.exports.array = (stream, options) => getStream(stream, {...options, array: true});
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module.exports.MaxBufferError = MaxBufferError;
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