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.
40 lines
1.0 KiB
JavaScript
40 lines
1.0 KiB
JavaScript
'use strict';
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const stringReplaceAll = (string, substring, replacer) => {
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let index = string.indexOf(substring);
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if (index === -1) {
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return string;
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}
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const substringLength = substring.length;
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let endIndex = 0;
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let returnValue = '';
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do {
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returnValue += string.substr(endIndex, index - endIndex) + substring + replacer;
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endIndex = index + substringLength;
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index = string.indexOf(substring, endIndex);
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} while (index !== -1);
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returnValue += string.substr(endIndex);
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return returnValue;
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};
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const stringEncaseCRLFWithFirstIndex = (string, prefix, postfix, index) => {
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let endIndex = 0;
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let returnValue = '';
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do {
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const gotCR = string[index - 1] === '\r';
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returnValue += string.substr(endIndex, (gotCR ? index - 1 : index) - endIndex) + prefix + (gotCR ? '\r\n' : '\n') + postfix;
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endIndex = index + 1;
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index = string.indexOf('\n', endIndex);
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} while (index !== -1);
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returnValue += string.substr(endIndex);
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return returnValue;
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};
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module.exports = {
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stringReplaceAll,
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stringEncaseCRLFWithFirstIndex
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};
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