server:

• You may to run the server on a different port, for example: java -jar server.jar <port>
• Logging to the console of connection events
• Connect users in separate Threads.
• Searching for a free port if the port is busy
• Asymmetric message encryption
• Data transfer protocol
• Automatically log into the account if the user is authorized
• Sending credentials to the mail
• Registration via mail
• Passwords are stored in a hash
• User accounts
• Command processing
• status brodcasting: online / offline
• sqlite data

client:

• You can connect by choosing any port and address: java -jar client.jar --connect 127.0.0.1 8181.
• Waiting for a connection if the server is not available.
• Command module:
  1. /signin - Authentication
  2. /sigup - Authorization
  3. /status - Сurrent status
  4. /connect - Try connect to the server using last address: [127.0.0.1:8181]
  5. /connect <PORT> - Try connect to the server using custom port
  6. /disconnect - Disconnect from the Server
  7. /reconnect - Reconnect to the Server
  8. /logout - Logout from the user account
  9. /exit - Exit from the Talx
  10. /help - Help
  11. @<username> <message> - Send private message for user
  12. @all <message> - Sand public message for all contacts
  13. /online - Show online users
  14. /read <username> - read last 10 messages from <username>
  15. /read <username> <num> - read last <num> messages from <username>
  16. /edit <parameter> - edit profile: nickname or password
  17. /whoami - about me
  18. /delete - delete account
• Asymmetric message encryption
• Data transfer secure protocol
• Auto login after authentication
• Messages are stored in the user folder