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Posted to modperl@perl.apache.org by JT Smith <jt...@plainblack.com> on 2005/11/17 00:32:00 UTC
special proxy mp handler
I'd like to write a handler that would serve big files out of a local cache but proxy
everything else through to another server. The situation is that there is an extranet in
the US, but a lot of folks in New Zealand need access to the file downloads. I don't
want to replicate the whole installation in NZ, but instead, give them a seperate server
with mod_proxy set up so that when they request most pages it proxies them through from
the main server, but when they ask for a really big file in the /uploads path that it
can pull it out of local cache.
Here's what I have so far:
package CacheHandler;
use Apache2::Request;
use Apache2::Const;
sub handler {
my $r = shift;
if ($r->uri =~ m/^\/uploads/) {
my $path = "/data/cache".$r->uri;
if (-f $path) {
# make it serve up this local file since it exists
}
}
return Apache2::Const::DECLINED;
}
1;
And here's the virtual host I've set up:
<VirtualHost *:80>
ServerName extranet
SSLProxyEngine on
DocumentRoot "/data/cache"
ProxyPass / https://example.com/
PerlModule CacheHandler
PerlInitHandler CacheHandler
</VirtualHost>
What can I add into my handler to make it circumvent the ProxyPass directive? Or if I
can't do that, how can I tell it to enable ProxyPass on any request where I don't pass
those other conditions?
Thanks for any assistance you can provide in advance.
JT ~ Plain Black
ph: 703-286-2525 ext. 810
fax: 312-264-5382
http://www.plainblack.com
I reject your reality, and substitute my own. ~ Adam Savage
Re: special proxy mp handler
Posted by JT Smith <jt...@plainblack.com>.
You rock! Thank you very much.
On Wed, 16 Nov 2005 15:58:40 -0800
"Philippe M. Chiasson" <go...@ectoplasm.org> wrote:
> JT Smith wrote:
>> I'd like to write a handler that would serve big files out of a local
>> cache but proxy everything else through to another server. The situation
>> is that there is an extranet in the US, but a lot of folks in New
>> Zealand need access to the file downloads. I don't want to replicate the
>> whole installation in NZ, but instead, give them a seperate server with
>> mod_proxy set up so that when they request most pages it proxies them
>> through from the main server, but when they ask for a really big file in
>> the /uploads path that it can pull it out of local cache.
>>
>> Here's what I have so far:
>>
>> package CacheHandler;
>>
>> use Apache2::Request;
>> use Apache2::Const;
>>
>> sub handler {
>> my $r = shift;
>> if ($r->uri =~ m/^\/uploads/) {
>> my $path = "/data/cache".$r->uri;
>> if (-f $path) {
>> # make it serve up this local file since it exists
>> }
>> }
> else {
> my $real_url = $r->unparsed_uri;
> $r->proxyreq(1);
> $r->uri($real_url);
> $r->filename("proxy:$real_url");
> $r->handler('proxy-server');
> }
>> return Apache2::Const::DECLINED;
>> }
>>
>> 1;
>
> And then you don't need ProxyPass anymore.
>
> See http://perl.apache.org/docs/2.0/api/Apache2/RequestRec.html#C_proxyreq_ for
> more details
>
>> And here's the virtual host I've set up:
>>
>> <VirtualHost *:80>
>> ServerName extranet
>> SSLProxyEngine on
>> DocumentRoot "/data/cache"
>> ProxyPass / https://example.com/
>> PerlModule CacheHandler
>> PerlInitHandler CacheHandler
>> </VirtualHost>
>>
>> What can I add into my handler to make it circumvent the ProxyPass
>> directive? Or if I can't do that, how can I tell it to enable ProxyPass
>> on any request where I don't pass those other conditions?
>>
>> Thanks for any assistance you can provide in advance.
>
> --------------------------------------------------------------------------------
> Philippe M. Chiasson m/gozer\@(apache|cpan|ectoplasm)\.org/ GPG KeyID : 88C3A5A5
> http://gozer.ectoplasm.org/ F9BF E0C2 480E 7680 1AE5 3631 CB32 A107 88C3A5A5
JT ~ Plain Black
ph: 703-286-2525 ext. 810
fax: 312-264-5382
http://www.plainblack.com
I reject your reality, and substitute my own. ~ Adam Savage
Re: special proxy mp handler
Posted by "Philippe M. Chiasson" <go...@ectoplasm.org>.
JT Smith wrote:
> I'd like to write a handler that would serve big files out of a local
> cache but proxy everything else through to another server. The situation
> is that there is an extranet in the US, but a lot of folks in New
> Zealand need access to the file downloads. I don't want to replicate the
> whole installation in NZ, but instead, give them a seperate server with
> mod_proxy set up so that when they request most pages it proxies them
> through from the main server, but when they ask for a really big file in
> the /uploads path that it can pull it out of local cache.
>
> Here's what I have so far:
>
> package CacheHandler;
>
> use Apache2::Request;
> use Apache2::Const;
>
> sub handler {
> my $r = shift;
> if ($r->uri =~ m/^\/uploads/) {
> my $path = "/data/cache".$r->uri;
> if (-f $path) {
> # make it serve up this local file since it exists
> }
> }
else {
my $real_url = $r->unparsed_uri;
$r->proxyreq(1);
$r->uri($real_url);
$r->filename("proxy:$real_url");
$r->handler('proxy-server');
}
> return Apache2::Const::DECLINED;
> }
>
> 1;
And then you don't need ProxyPass anymore.
See http://perl.apache.org/docs/2.0/api/Apache2/RequestRec.html#C_proxyreq_ for
more details
> And here's the virtual host I've set up:
>
> <VirtualHost *:80>
> ServerName extranet
> SSLProxyEngine on
> DocumentRoot "/data/cache"
> ProxyPass / https://example.com/
> PerlModule CacheHandler
> PerlInitHandler CacheHandler
> </VirtualHost>
>
> What can I add into my handler to make it circumvent the ProxyPass
> directive? Or if I can't do that, how can I tell it to enable ProxyPass
> on any request where I don't pass those other conditions?
>
> Thanks for any assistance you can provide in advance.
--------------------------------------------------------------------------------
Philippe M. Chiasson m/gozer\@(apache|cpan|ectoplasm)\.org/ GPG KeyID : 88C3A5A5
http://gozer.ectoplasm.org/ F9BF E0C2 480E 7680 1AE5 3631 CB32 A107 88C3A5A5