Peer2Peer Messaging

How to run

1. Download the repository with: git clone https://github.com/yutytuty/Rendezvous-Server.git
2. Change the ADDR constant at the top of the server.py and the RENDEZVOUS constant at the top of client.py to your desired address, although running on localhost works out of the box.
3. Run the server with python3 server.py
4. Run both clients with python3 client.py
5. When both clients are connected, a chat window will open up in the terminal and messaging will work.

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protocol

1. Server opens udp punchole
2. Server waits for message that says hello
3. Server saves address of message sender
4. If there is only 1 connection the server waits for a second one (goto 1)
5. The server exchanges the clients' ip addresses with each other and sends them the ready message to indicate they are ready to message
6. The clients open a tcp listening port
7. Clients send messages over udp which are then printed