Hi tadman,

That's a pretty good summary, but it leaves my original question:

What is the best way to Crush (to use your sub name) CGI parameters? MIME:Base64 is not suitable because it increases the length of the URL, I want to decrease it. I think a solution would have to take advantage of the format of CGI parameters.

Something that just popped into my head:

A scheme as mentioned by Dave, but instead of storing the whole parameter string against a unique ID, store the parameter names, order and format (string/integer). Then encode the URL as the ID, followed by the parameter values encoded depending on format.

For example, if the hash contains 

Key: 1
Value: Action=<string>,Area=<int>,SubArea=<int>

[download]

Then the URL: 

http://www.server.com/cgi-bin/script/script.pl?Action=view&Area=12345&
+SubArea=12345

[download]

Could be encoded to: 

http://www.server.com/cgi-bin/script/script.pl/SKLJSD

[download]

where "SKLJSD" can be decoded to 1,view,12345,12345

Comments? This avoids the problem of having to expire hash entries, because the hash contains only formats, which are likely to be a fairly small set.

-- Michael Snell
-- michael@snell.com

In reply to Re: Re: Encoding/compress CGI GET parameters by snellm
in thread Encoding/compress CGI GET parameters by snellm

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