Question

You are required to build a chat server which includes the following components. \newline One to One Chat facility Whenever some user connects to the server, it should display list of online users (User IDs). Here, User will be choosing a User ID for him/herself which can be assigned only if not assigned earlier. Then, to connect to chat room User would type \"room\" and for specific user \"USER ID\" \begin{itemize} \item Room connection would be granted without any authentication. \item For specific user (Omer) connection request from \"Tehreem\", other person \"Omer\" should receive a message like \"Tehreem\" wants to chat with you. Here \"Omer\" should be able to receive this message even if he will be in the chat room or talking to some other user \"Saad\". \end{itemize} Replying \"OK\" would create a connection for )mer\" with \"Tehreem\" \begin{itemize} \item By replying \"SORRY\" \"Omer\" would continue with the current Chat and \"Tehreem\" should receive a denial message, \"Omer don't want to talk to you\". \end{itemize} You need to decide yourself the implementation details. For example, which connection TCP/UDP you would be using or is there any threading involved at some point.

          You are required to build a chat server which includes the following components.
\newline
One to One Chat facility
Whenever some user connects to the server, it should display list of online users (User IDs).
Here, User will be choosing a User ID for him/herself which can be assigned only if not
assigned earlier.
Then, to connect to chat room User would type \"room\" and for specific user \"USER ID\"
\begin{itemize}
    \item Room connection would be granted without any authentication.
    \item For specific user (Omer) connection request from \"Tehreem\", other person \"Omer\"
    should receive a message like \"Tehreem\" wants to chat with you. Here \"Omer\"
    should be able to receive this message even if he will be in the chat room or talking
    to some other user \"Saad\".
\end{itemize}
Replying \"OK\" would create a connection for )mer\" with \"Tehreem\"
\begin{itemize}
    \item By replying \"SORRY\" \"Omer\" would continue with the current Chat and \"Tehreem\"
    should receive a denial message, \"Omer don't want to talk to you\".
\end{itemize}
You need to decide yourself the implementation details. For example, which connection
TCP/UDP you would be using or is there any threading involved at some point.

$You are required to build a chat server which includes the following components. \newline One to One Chat facility Whenever some user connects to the server, it should display list of online users (User IDs). Here, User will be choosing a User ID for him/herself which can be assigned only if not assigned earlier. Then, to connect to chat room User would type \"room\" and for specific user \"USER ID\" \begin{itemize} \item Room connection would be granted without any authentication. \item For specific user (Omer) connection request from \"Tehreem\", other person \"Omer\" should receive a message like \"Tehreem\" wants to chat with you. Here \"Omer\" should be able to receive this message even if he will be in the chat room or talking to some other user \"Saad\". \end{itemize} Replying \"OK\" would create a connection for )mer\" with \"Tehreem\" \begin{itemize} \item By replying \"SORRY\" \"Omer\" would continue with the current Chat and \"Tehreem\" should receive a denial message, \"Omer don't want to talk to you\". \end{itemize} You need to decide yourself the implementation details. For example, which connection TCP/UDP you would be using or is there any threading involved at some point.$

Added by Javier C.

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