A few clarifications/tips related to Assignment 1.
- You can assume that the browsers generate properly formatted HTTP requests. You only need to handle user errors, such as, when users enter a URL pointing to a non-existing file.
- Beware of
Runtime.exec(String[] cmdarray, String[] envp). If the standard environmental variables, such asHOMEis missing from the parameterenvp, the perl script will not run properly. The script expects thatHOMEto be set to the user’s home directory. The symptoms of this bug is that todo.pl tries to create a folder/a1/data, which it does not have permission to. - Beware of
readline(). It returns only after it encounters a new line character. Note that neither HTTP request or response BODY guarantees that it ends with a new line character. If you use readline(), you may have to wait forever for it to return. - If you are ssh-ing into cs2105-z from Windows ssh client, you may have key mapping issues when you use
vim. You can copy my.vimrcfrom~ooiwt/.vimrconcs2105-z, which maps the keys properly, to resolve this issue.
Dear Prof,
After I copy the .vimrc, the backspace key cannot work
Try removing the line that says :map! ^H ^H
Can I put WebServer.java in a ~/a1/src folder or must it be in ~/a1 ?
Please put it under $HOME/a1 directory directly.
Our script will basically do the following:
for each student id s:
homedir = home of s
copy $homedir/a1/WebServer.java for grading
If you named it anything else, put it anywhere else, require any other files, the step will failed.
Thanks!
Thanks! Have made the modifications. Thanks for informing.
I started the web server on port 1234 but going to http://cs2105-z.comp.nus.edu.sg:1234/ gives me an error. Is there a problem with the DNS?
I tried it at Utown. Must I be using SoC wifi for it to work?
Installed SoC VPN and it worked. Sorry for the trouble.
Dear Prof,
My unix account looks different from my friends’…
I login with liu-dake@cs2105-z.comp.nus.edu.sg
not A0105656@cs2105-z.comp.nus.edu.sg
AND my account directory is /home/l/liu-dake/a1
Is it okay? Or, how can I change my directory of unix account?
Thank you very much
Looks correct. No worries.
Dear Prof,
Me and my teammate were not able to find any link/procedure to book the demo slots for the assignment.
Could you please clarify/provide the link/procedure to book the slots.
Thank you,
Arpit
Coming soon. Watch the blog space please.