Accessing files and folder from any FTP site

Question

hi friends,

   i am trying to access files and folders from any FTP site using its corresponding port.
 
for example
 
Input: ftp://dreamincode:21/forums/topic/77912-ftp-download-delete/

from the above FTP site, i need to parse that site and accessing the file which is avail in forums then check it out topic. so i need to access all files and folders till end of the FTP site URL.
 
files may be
 
            *.log or *.csv like that..

I don't know how to do it, any one can help me to complete this...

thanks in advance,

regards,

sasi