[squid-users] Re:Re:Re:Re:Planning to change the content of the object.

Thanks, Yee pal!

I find the definition of READ_AHEAD_GAP in defines.h. Here,

#define READ_AHEAD_GAP (1<<14)

What is your method? Can you give me your codes?

Another question, what is the meaning and function of
"READ_AHEAD_GAP"?

Best regards,
George Ma

----- Original Message -----
From: Yee Man Chan
To: maer727@sohu.com
Cc: squid-dev@squid-cache.org
Subject: Re:Re:Re:Planning to change the content of the object.
Sent: Tue May 14 13:15:49 CST 2002

> The trick I used before is increase the value of
> READ_AHEAD_GAP.
>
> Yee Man
> --- maer727@sohu.com wrote:
> > Thanks, Yee pal!
> >
> > The biggest trouble to me is I cannot get the html
> > content of
> > a specific URL. They are often released. The .jpg
> > and .js are easy
> > to change (I have successfully changed one .jpg to
> > another.)
> >
> > Do you have some suggestions to resolve the trouble?
> >
> >
> > Another question, what means "I did it before
> > myself" in your reply?
> >
> > Best regards,
> > George Ma
> >
> > ----- Original Message -----
> > From: Yee Man Chan
> > To: Henrik Nordstrom ;maer727@sohu.com
> > Cc: squid-dev@squid-cache.org
> > Subject: Re:Re:Planning to change the content of the
> > object.
> > Sent: Tue May 14 06:43:43 CST 2002
> >
> > > I agree George should use redirector if he
> > "modifies"
> > > objects based on their URLs. If he wants to modify
> > > objects based on their content, then he needs to
> > do
> > > some content processing. I did it before myself.
> > It is
> > > not too hard after you understand the client_side
> > code
> > > and how MemObject works.
> > >
> > > Cheers,
> > > Yee Man
> > >
> > > --- Henrik Nordstrom <hno@squid-cache.org> wrote:
> > > > Using the redirector interface it is very
> > trivial,
> > > > provided you know
> > > > the URL of the object you want to replace,
> > simply
> > > > rewrite the URL to
> > > > one of your new image.
> > > >
> > > > Regards
> > > > Henrik
> > > >
> > > >
> > > > On Saturday 11 May 2002 16:26, maer727@sohu.com
> > > > wrote:
> > > > > Thanks, Henrik pal!
> > > > >
> > > > > My plan is very simple. I just want to change
> > one
> > > > jpg to
> > > > > another jpg. Is that an east task?
> > > > >
> > > > > Best regards,
> > > > > George Ma
> > > > >
> > > > > ----- Original Message -----
> > > > > From: Henrik Nordstrom
> > > > > To: maer727@sohu.com
> > > > > Cc: squid-dev@squid-cache.org
> > > > > Subject: Re:Planning to change the content of
> > the
> > > > object.
> > > > > Sent: Sat May 11 20:47:56 CST 2002
> > > > >
> > > > > > The main reason is that the Squid code is
> > very
> > > > badly suited for
> > > > > > inline modifications of content. It very
> > much
> > > > assumes the
> > > > > > dataflow is straight thru unmodified.
> > > > > >
> > > > > > If doing it inline in Squid, then about the
> > only
> > > > location it can
> > > > > > be done is in client_side.c.
> > > > > >
> > > > > > Caution: Be very careful when performing
> > content
> > > > modifications
> > > > > > outside the origin server. HTTP is a rather
> > > > complex protocol and
> > > > > > unless you take care to clearly indicate the
> > > > modified content as
> > > > > > such you may end up with some interesting
> > client
> > > > interactions..
......
Received on Tue May 14 2002 - 02:28:24 MDT