lrlrlrlr / comp3331_9331_22t2

For H12A and H14A students.

COMP3331_9331_22t2

For H12A and H14A students.

General info:

• Course outline

Assignment design

• MUST use UDP for P2P part (otherwise you will lose marks).
• Use 'try...except...' to catch every exception so your client and server will not crash.
• Follow the SPEC to design your application, your application should have SAME output as the SPEC example.
• Do not concern too much about the corner case, make sure the function is working properly at first!

Assignment Test Instructions

Note: Please try to run your application with the follwing commands, and check if you have expected output. This is not an official testcase, just for reference, please always follow the instructions of Assignment SPEC.

login

• login with correct password
• login with incorrect password, for 3 times. -- the client terminal should shutdown and user should be blocked.
• login with with a blocked username, from another client(new terminal).
• login with a username that does not exist
• Check the page 13~14 in SPEC, make sure you have the same output as the examples.
• try this new credentials.txt

ATU

• login Hans, Yoda. Then use Yoda issue the ATU command -- the server should exclude the information of the client, who sends ATU command to the server.
• login Yoda only, then issue the ATU cmd, it should prompt "no other active user". Also check the logfile userlog.txt, make sure the log file is following the format at page 3 SPEC.

BCM

• Use Yoda to issue BCM command, The client should display an error message.
• Use Yoda to issue BCM Hello world! COMP3331 command, then check the logfile messagelog.txt, make sure the format is following the page 4 SPEC:

messageNumber; timestamp; username; message 
1; 1 Jun 2022 21:39:04; yoda; Hello world! COMP3331

• Then login Hans, issue the command RDM b 1 Jun 2022 21:39:00 -- you should be able to see the message from Yoda.

SRB & SRM & RDM

• Login Yoda only, then issue command SRB and SRB Yoda and SRB Hans and SRB offlineuser, the client should display an error message.
• Login Yoda and Hans, then issue command SRB Hans in yoda's terminal and issue the command SRB Yoda in Hans' terminal , you should have only 1 room (if a separate room already created for this group of users no matter which user in the group created, the server should not create another separate room, thanks to @Finbar to point this problem out )
• Following the last one
  • issue SRM in Yoda's terminal, the client should display an error message.
  • issue the command SRM 1 Hi, Hans and SRM 2 Hi, Hans in Yoda's terminal -- should be succesful.
• Following the last one,
  • issue RDM in Yoda's terminal, the client should display an error message.
  • issue the command RDM s 1 Jun 2033 21:39:00 in Hans' terminal -- should have no message been shown since the timestamp is year 2033.
  • issue the command RDM s 1 Jun 2022 21:39:00 in Hans' terminal -- should be succesful display the Yoda's messages in room 1 and 2.

OUT

• Login to Yoda, check the active user log, yoda should be in the logfile.
• Issue command BCM Hello world!, then issue OUT, check the active user log, yoda should not be in the logfile now. Then check messagelog.txt, yoda's message should still inside the file.

P2P

• Check the code in client.py, make sure it is UDP instead of TCP;
• Download the video file ski.mp4, put it in the same folder with client.py.
• Login to Yoda only, then issue UPD and UPD Hans Filenotexist.mp4 and UPD Hans ski.mp4, your client should prompt an error message.
• Login to Yoda and Hans, then try to run UPD Hans ski.mp4 in Yoda's terminal, you should be able to find the yoda_ski.mp4 in the folder, try to play the video, see if it is playable.

What's more

Please check the Assignment SPEC. Page 13~18, test your program with the examples and make sure you have exactly same output.