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i need some help. using perl, is there a way to specify an actual hex char to be used in a URL, like 0x20
an HTTP GET that has %20 in the uri is actually three hex chars and is the HTTP equiv of a space. but is there a way to represent a "space" using a hex value of say 0x20 or 0x00?
as example (which doesnt work, the actual GET has "$char" in it).
use LWP::UserAgent [search.cpan.org];
use HTTP::Request [kobesearch.cpan.org];
my $char = "\x20"; # hexadecimal
my $URL = 'http://www.xyz.com/xxx/search/?o=nav&sp=cowboys$charand$charindians';
Last edited by Linux_Kidd; 05-08-2014 at 11:10 PM.
Can you explain in more detail what it is you want to do and why? Certain characters (like space) need to be percent-encoded in the query part of the URL. See this and references therein.
i think you are noting the rules..... doesnt mean i cant send 0x20 instead of 0x25,0x32,0x30
i am investigating a WAF log violation which shows the URL with actual spaces. the WAF itself wont show what the actual space is in hex. for normal URL's using url encoding like %20 the WAF shows these (which are three ascii chars of %, 2, and 0), etc.
i want to be able to send 0x20 instead of using %, etc.
yes, in general thats what i am trying to do. browsers (url encoders in general) will swap out ascii space for %20, etc. i tried %00 and webserver handled it a different way vs using %20, %00 gave http302 while %20 gave http200.
0x00 is null char, which is still 1 byte in the uri.
0x00 or 0x20 is 1 byte in the data, what the app layer does with 0x00 or non 0x20 is TBD.
Last edited by Linux_Kidd; 05-09-2014 at 12:14 PM.
URI encoders want to convert any hex 0x20 into three chars of %20, etc. Thats exactly what i am trying to get around. i need a URL encoder that will write the wire exactly as stated, in my case using a single 0x20 hex char for the space, etc.
The client is supposed to URL encode the query string. If you want to do things differently, you'll possibly have to use another (your own?) protocol. Naturally, the thing doing the receiving will have to change as well.
You haven't said what this is for. Perhaps there's a better way to accomplish your end goal.