message_protocol

CrazyServer Message Explanation

This document provides an explanation of the messages sent and received in the CrazyServer WebSocket implementation.

Message Types

1. Private Message

• Type: private
• From: server
• Value: Welcome message sent to clients upon connection.

2. Connected Message

• Type: connected
• From: server
• Id: Unique identifier for the connected client.
• Description: Notifies the server about a new client connection.

3. Disconnected Message

• Type: disconnected
• From: server
• Id: Unique identifier for the disconnected client.
• Description: Notifies the server about a client disconnection.

4. New Message Notification

• Type: new message
• Id: Unique identifier for the client sending the new message.
• Description: Notifies other connected clients about a new message.

5. New Connection Notification

• Type: new connection
• Id: Unique identifier for the newly connected client.
• Description: Notifies other connected clients about a new client connection.

6. New Disconnection Notification

• Type: new disconnection
• Id: Unique identifier for the disconnected client.
• Description: Notifies other connected clients about a client disconnection.

7. Login Message

• Type: login
• Success: Boolean indicating the success of the login attempt.
• Description: Sent by clients to authenticate with the server.

8. List Message

• Type: list
• List: Array containing client information (id and platform).
• Description: Sent by the server to provide a list of connected clients.

9. Print String Message

• Type: string
• Text: The text message to be displayed on the server screen.
• Description: Instructs the server to display a moving message on the screen.

10. Print Image Message

• Type: image
• Img: Base64-encoded image data.
• Description: Instructs the server to display an image on the screen.

Message Flow

1. Client Connection:

   • Client sends a connected message.
   • Server responds with a private welcome message and notifies other clients about the new connection.

2. Client Disconnection:

   • Client sends a disconnected message.
   • Server broadcasts the disconnection to other clients.

3. Client Sends Message:

   • Client sends a message with type string or image.
   • Server processes the message and notifies other clients if needed.

4. Client Login:

   • Client sends a login message with user credentials.
   • Server validates the credentials and responds with a success or failure message.

5. Client Requests Client List:

   • Client sends a list message.
   • Server responds with a list of connected clients.

Additional Notes

• Messages are exchanged using JSON format.