Paul Li wrote:
Thanks André!
Just one more question: if i want to retrieve from the access log the
users' visiting history of my web site, what would you suggest?
I would suggest to use "webalizer", or any of the similar programs which
do about the same thing.
Seriously, there you are asking a question that is more about
programming logic than Apache tidbits, and I'm afraid for that you'll
have to do some work yourself.
But assuming that you committed some crime, and that the task in
question is your punishment, here is an outline :
I would start by selecting a programming language that is good at
parsing lines of text and manipulate them (like perl).
(You could also use awk of course. I have some good friends that use
awk too ;-))
Then I would split each line into its constituents (caller IP,
date/time, result code, requested URL, ..
Then I would ignore anything that did not result in a code 200 (OK).
Then I would ignore any line that is about URLs ending in .gif, .jpeg,
.css, etc.. (unless they are really significant in your case).
Then I would sort the remainder by caller IP (about the only element you
have that allows to believe that this is one user) and by date/time.
And then I would really get to work, to decide what belongs to one
single visit..
I'm sure I am forgetting 90% of the smart things that programs like
webalizer are doing. Not even speaking about presenting the results nicely.
Anyway, have fun !
André
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