Chat-Server

Overview

MJT FMI 2k17 Course Project - Console chat server

Functionality

• The server handles multiple user's requests simultaneously.
• Each user has unique username and password. User's data is stored as a plain text in a file.
• Users can disconnect at any time.
• Each user can send personal messages to another active user. A user is active when is registered and logged in the system at the moment.
• Users can communicate using chat-rooms(multiple users chat):
  • A user can be part of many chat-rooms at a time.
  • Create/Delete chat-room. Only the creator of the room can delete it.
  • Join/Leave an existing chat-room.
  • Show all existing chat-rooms.
  • List all active users in an existing room.
  • Send a message to all members in the room.
  • Chat history of each room is stored as a plain text in a file. When a new user joins the room he receives the whole chat history of the room.

User commands:

• connect <host> <port> - connects a user to the server
• register <username> <password> - registers a user if the username is already taken, server sends appropriate message.
• login <username> <password> - logs in a user if exists and is not already logged in.
• disconnect - disconnects a user.
• send <username> <message> - sends <message> to the user with username equal to <username> if such exists.
• create/delete/join/leave-room <room_name> - creates/deletes/joins/leaves chat-room if does not exists the server sends appropriate message.
• list-rooms - lists all active chat-rooms. A chat-room is active if has at least one active user.
• list-users <room> - lists all active users in the chat-room.