16 handling connections requests

[Frlundsten]

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Handling connection request for the first time

We should validate the connections made according to MQTT protocol

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Related Issue(s)

Closes #16

Proposed Changes

I suggest a separate class that can validate packages sent from a client to the server. The server can then respont to the client if connection is valid.

• Change 1: A new class called PackageReader.
• Change 2: Check connections in ClientHandler class before adding client to list.

Here are some example changes:

• Clienthandler get private final PackageReader field.
• We can read clients socket output and validate its package. If package is valid, the Connect message will be mapped with InetAdress of the clients socket. If a socket tries to send a second Connect package, the map inside PackageReader will trigger a statement that returns value false to Clienthandler, ending up closing the socket.

[Win-ther]

isValidConnection method needs to return true. Other than that the code looks good.

[TrungMa1]

Tests could be done for isConnectPackage method in PackageReader class.

[Frlundsten]

Tests could be done for isConnectPackage method in PackageReader class.

Absolutely , I will make some tests👍

[TrungMa1]

Good job!