Re: Upper and lower case strings in Varnish
On 3 February 2010 17:15, Richard Chiswell wrote: >> Hi Poul, >> >> Poul-Henning Kamp wrote: >>> In message <4b69ab1a.6010...@mangahigh.com>, Richard Chiswell writes: >>> I've got a simple question which I've been puzzling on for the last 30 minutes or so - how do you change a string in Varnish to lowercase? >>> You'll have to use a bit of inline C code to do that. I'm no varnish or C expert, YMMV etc... but I managed to get something like this working. It's a VCL with embedded C that reads the "Accept-Language" header and rewrites it (or writes into a different header, actually) the result of some processing function. Take a look at the examples here: http://github.com/cosimo/varnish-accept-language/tree/master/examples sample.vcl is the main VCL file, from which you embed the other one, accept-language.vcl, which in turn contains the C function you want to use. I think `vcl_rewrite_accept_language()' is what you need. Then you're only missing the upper->lower case bit. -- Cosimo ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Upper and lower case strings in Varnish
I don't think it's possible to write a regex that will do that in one
go. There's a dumb solution though:
set obj.http.Location regsuball(obj.http.Location, "A", "a");
set obj.http.Location regsuball(obj.http.Location, "B", "b");
...
Laurence
On 3 February 2010 17:15, Richard Chiswell
wrote:
> Hi Poul,
>
> Poul-Henning Kamp wrote:
>> In message <4b69ab1a.6010...@mangahigh.com>, Richard Chiswell writes:
>>
>>> I've got a simple question which I've been puzzling on for the last 30
>>> minutes or so - how do you change a string in Varnish to lowercase?
>>>
>> You'll have to use a bit of inline C code to do that.
>>
> Thanks Poul - any chance of any example of how to do this with a regular
> expression: we currently have:
> set obj.http.Location = "http://"; req.http.host "/"
> regsub(req.url,"^/(en_gb/|en_us/)?([A-Za-z]+)/?(.*)$","\1\2");
> but we only want the \1 lowercased -I've got to
> set obj.http.Location = "http://"; req.http.host "/"
> regsub(req.url,"^/(en_gb/|en_us/)?([A-Za-z]+)/?(.*)$","C{char
> str[255];str=\1;for (i=0;str[i];i++) { str[i]=tolower(str[i]);return
> str;}C\2");
> but that doesn't seem to work. I don't suppose you can point me in the
> right direction (it's been over 10 years since I've done C [since then
> C++, C#.Net, PHP, Perl and Java: so remembering what's valid syntax is
> bad enough, and I've got no idea about the passing to/from varnish side
> of things).
>
> Thank you,
> Richard
> ___
> varnish-misc mailing list
> varnish-misc@projects.linpro.no
> http://projects.linpro.no/mailman/listinfo/varnish-misc
>
___
varnish-misc mailing list
varnish-misc@projects.linpro.no
http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Upper and lower case strings in Varnish
Hi Poul,
Poul-Henning Kamp wrote:
> In message <4b69ab1a.6010...@mangahigh.com>, Richard Chiswell writes:
>
>> I've got a simple question which I've been puzzling on for the last 30
>> minutes or so - how do you change a string in Varnish to lowercase?
>>
> You'll have to use a bit of inline C code to do that.
>
Thanks Poul - any chance of any example of how to do this with a regular
expression: we currently have:
set obj.http.Location = "http://"; req.http.host "/"
regsub(req.url,"^/(en_gb/|en_us/)?([A-Za-z]+)/?(.*)$","\1\2");
but we only want the \1 lowercased -I've got to
set obj.http.Location = "http://"; req.http.host "/"
regsub(req.url,"^/(en_gb/|en_us/)?([A-Za-z]+)/?(.*)$","C{char
str[255];str=\1;for (i=0;str[i];i++) { str[i]=tolower(str[i]);return
str;}C\2");
but that doesn't seem to work. I don't suppose you can point me in the
right direction (it's been over 10 years since I've done C [since then
C++, C#.Net, PHP, Perl and Java: so remembering what's valid syntax is
bad enough, and I've got no idea about the passing to/from varnish side
of things).
Thank you,
Richard
___
varnish-misc mailing list
varnish-misc@projects.linpro.no
http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Upper and lower case strings in Varnish
In message <4b69ab1a.6010...@mangahigh.com>, Richard Chiswell writes: >Hi all, > >I've got a simple question which I've been puzzling on for the last 30 >minutes or so - how do you change a string in Varnish to lowercase? > >Basically, all the links on our site should be lowercase, but some >people have been randomly capitalising them when linking to them - I'd >just like Varnish to issue a 301 redirect to the lowercased version of >the URL: everything is in place apart from converting the string to >lowercase. You'll have to use a bit of inline C code to do that. Poul-Henning -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
