Group Assignment

Team

1. Vishwanath
2. Lucas
3. Siddharth
4. Anmol

Asana.com link :

https://app.asana.com/share/vishw/cs631/1203202255113786/ac1cd1613952692d3cae622be0ecd424

Manual Page

https://stevens.netmeister.org/631/sws.1.pdf

Test Cases For CGI

1. Input given for -c is absolute ending with a / Ex: ./sws -c /home/z/sws/
2. Input given for -c is absolute ending without a / Ex: ./sws -c /home/z/sws
3. Input given for -c is relative ending with a / Ex: ./sws -c ../../../
4. Input given for -c is relative ending without a / Ex: ./sws -c ../../..
5. Input given in the user request is absolute GET /cgi-bin/hello.cgi HTTP/1.0
6. Input given in the user request is absolute and ends with "/" EX: GET /cgi-bin/hello.cgi/ HTTP/1.0
7. Input given in the user request is relative GET /cgi-bin/../sws/hello.cgi/ HTTP/1.0 and ends with / -- this is a rare case and any sensible wouldn't type this so we don't serve it , try doint ls happy.c/ it will throw an error.
8. Input given in the user request is relative GET /cgi-bin/../sws/hello.cgi HTTP/1.0 and it stays inside the cgi-bin
9. Input given in the user request is relative GET /cgi-bin/../../hello.cgi HTTP/1.0 and it goes outside the cgi-bin

Crazy Things

1. If I put a relative path in CURL it will remove all dots before making the request which wasted almost 2 hours of our time.
2. Telnet fails when a large CGI is being executed.
3. If we run the server as daemon and give the working directory as '.' then the daemon is resolving it as / since it's working directory is at root.
4. For some apparent reason if we user flags.argument_path as server's working directory it is reset to null as soon as it is being passed to any function, there is no other place where we were editing that attribute, we have created a new variable in the struct with different name and assigned the same value which works flawlessly. To figure out why this is not working it almost took 2 hours of hour time :(.

Credits

1. We have used command system library source code for our CGI from System V.
2. We have used online websites like geeks for geeks in very few places where we couldn't figure out things from manual pages.

How to Build?

make clean && make

How to run?

./sws -p PORT_NUM -c CGI_BIN_PATH -l LOGGING_FILE_PATH WORKING_DIR_OF_SWS

How to hit using CLI(CURL)?

curl --http1.0 -v --location --request GET 'http://localhost:PORT_NUM/cgi-bin/something.cgi' --header 'If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT'