Help with request data

[Dermot Paikkos <de...@sciencephoto.co.uk>]

Hi

MP2 RC5

I am moving from a MP1 to MP2 server and am having trouble. I have 
opted to re-write the scripts I had so I could add some more 
functions.

I am struggling tring to find methods to access my form data and 
other headers. I am currently using

my $form_data = $r->the_request() 

and split the line from there to access the form values. 

For other headers I am using 
my $string = $r->as_string;
(my $user-agent) = ($string =~ /User-Agent:(.*)\sAccept/);

I can get to where I want but I have the feeling I am taking the long 
way to do it. The cook book I have on mod_perl doesn't cover MP2.

Is there no direct replacement for $r->param('field_name') or
$headers_in{'User-Agent'}? If not should I just continue as I am or 
are there better methods for getting at the request?

Apologies in advance if I have missed this in the docs but I can't 
find anything obvious in the Request::* documentation. I also am a 
bit OO illiterate.

Thanx.
Dp.

Re: Help with request data

[Dermot Paikkos <de...@sciencephoto.co.uk>]

On 22 Apr 2005 at 18:36, Markus Wichitill wrote:
> 
> At the moment you'll have to pull the current version of apreq2 from
> SVN for MP2-RC5.
> 
> http://svn.apache.org/repos/asf/httpd/apreq/trunk

thanx but I think I might be getting out of my depth. I'll wait till 
there's a full release.
Dp.

Re: Help with request data

[Markus Wichitill <ma...@gmx.de>]

Dermot Paikkos wrote:
> I just tried to install libapreq2 (v2-2.03-dev) from CPAN. It was a 
> bit of a saga. I was missing a couple of prerequisites. Then it 
> couldn't find Apache2.pm -  I made a link to sort that - then I ran 
> make test and there were errors. At that point I halted. 

At the moment you'll have to pull the current version of apreq2 from SVN for 
MP2-RC5.

http://svn.apache.org/repos/asf/httpd/apreq/trunk

Re: Help with request data

[Dermot Paikkos <de...@sciencephoto.co.uk>]

On 23 Apr 2005 at 0:25, JH Foo wrote:

> Hello Dermot,
Hi, 
> You need to use Apache2::Request for mp2. This comes with the
> libapreq2 package from the excellent theoryx5 site. Notice the change
> in the package namespace.

I just tried to install libapreq2 (v2-2.03-dev) from CPAN. It was a 
bit of a saga. I was missing a couple of prerequisites. Then it 
couldn't find Apache2.pm -  I made a link to sort that - then I ran 
make test and there were errors. At that point I halted. There where 
numerous errors in the log: 

[Fri Apr 22 16:29:08 2005] [debug] mod_apreq.c(455): [client 
127.0.0.1] removing filter (1) 
[Fri Apr 22 16:29:08 2005] [error] [client 127.0.0.1] 
[test_cgi.c(51): Success] Creating apreq_request 
[Fri Apr 22 16:29:08 2005] [error] [client 127.0.0.1] 
[apreq_env.c(182): Success] Lookup of CONTENT_TYPE failed: status=2 
[Fri Apr 22 16:29:08 2005] [error] [client 127.0.0.1] 
[test_cgi.c(55): Success] Fetching the parameters [Fri Apr 22 
16:29:08 2005] [error] [client 127.0.0.1] [apreq_env.c(182): Success] 
Lookup of CONTENT_TYPE failed: status=2 
[Fri Apr 22 16:29:08 2005] [error] [client 127.0.0.1] 
[test_cgi.c(107): Success] Fetching all parameters [Fri Apr 22 
16:29:08 2005] [error] [client 127.0.0.1] [test_cgi.c(51): Success] 
Creating apreq_request 
[Fri Apr 22 16:29:08 2005] [error] [client 127.0.0.1] 
[apreq_env.c(182): Success] Lookup of CONTENT_TYPE failed: status=2 

I can probably get by without libapreq2 and use the $r-the_request(); 
for now. 

Cheers.
Dp.


> > Hi
> >
> > MP2 RC5
> >
> > I am moving from a MP1 to MP2 server and am having trouble. I have
> > opted to re-write the scripts I had so I could add some more
> > functions.
> >
> > I am struggling tring to find methods to access my form data and
> > other headers. I am currently using
> >
> > my $form_data = $r->the_request()
> >
> > and split the line from there to access the form values.
> >
> > For other headers I am using
> > my $string = $r->as_string;
> > (my $user-agent) = ($string =~ /User-Agent:(.*)\sAccept/);
> >
> > I can get to where I want but I have the feeling I am taking the
> > long way to do it. The cook book I have on mod_perl doesn't cover
> > MP2.
> >
> > Is there no direct replacement for $r->param('field_name') or
> > $headers_in{'User-Agent'}? If not should I just continue as I am or
> > are there better methods for getting at the request?
> >
> > Apologies in advance if I have missed this in the docs but I can't
> > find anything obvious in the Request::* documentation. I also am a
> > bit OO illiterate.
> >
> > Thanx.
> > Dp.
> >
> >
> >
> >
> 
> 


~~
Dermot Paikkos * dermot@sciencephoto.com
Network Administrator @ Science Photo Library
Phone: 0207 432 1100 * Fax: 0207 286 8668

Re: Help with request data

[JH Foo <jh...@nexlabs.com>]

Hello Dermot,

You need to use Apache2::Request for mp2. This comes with the libapreq2
package from the excellent theoryx5 site. Notice the change in the package
namespace.

----- Original Message -----
From: "Dermot Paikkos" <de...@sciencephoto.co.uk>
To: <mo...@perl.apache.org>
Sent: Friday, April 22, 2005 10:13 PM
Subject: Help with request data


> Hi
>
> MP2 RC5
>
> I am moving from a MP1 to MP2 server and am having trouble. I have
> opted to re-write the scripts I had so I could add some more
> functions.
>
> I am struggling tring to find methods to access my form data and
> other headers. I am currently using
>
> my $form_data = $r->the_request()
>
> and split the line from there to access the form values.
>
> For other headers I am using
> my $string = $r->as_string;
> (my $user-agent) = ($string =~ /User-Agent:(.*)\sAccept/);
>
> I can get to where I want but I have the feeling I am taking the long
> way to do it. The cook book I have on mod_perl doesn't cover MP2.
>
> Is there no direct replacement for $r->param('field_name') or
> $headers_in{'User-Agent'}? If not should I just continue as I am or
> are there better methods for getting at the request?
>
> Apologies in advance if I have missed this in the docs but I can't
> find anything obvious in the Request::* documentation. I also am a
> bit OO illiterate.
>
> Thanx.
> Dp.
>
>
>
>

Re: Help with request data

[Dermot Paikkos <de...@sciencephoto.co.uk>]

On 22 Apr 2005 at 10:30, Geoffrey Young wrote:
> > MP2 RC5
> > 
> > I am moving from a MP1 to MP2 server and am having trouble. I have
> > opted to re-write the scripts I had so I could add some more
> > functions.
> > 
> > I am struggling tring to find methods to access my form data and
> > other headers. I am currently using
> > 
> > my $form_data = $r->the_request() 
> > 
> > and split the line from there to access the form values. 
> > 
> > For other headers I am using 
> > my $string = $r->as_string;
> > (my $user-agent) = ($string =~ /User-Agent:(.*)\sAccept/);
> > 
> 
> ugh!  :)
> 
> > I can get to where I want but I have the feeling I am taking the
> > long way to do it. The cook book I have on mod_perl doesn't cover
> > MP2.
> 
> in this case everything is the same
> 
>   use APR::Table;
>   use Apache2::RequestRec;

I got stung on this on my first attempt. I had tried

$agent->$r-headers_in->{'User-Agent'}

without
use APR::Table;

As I said, I'm not very OO literate but the error referred to 
APR::table and I hadn't loaded it. I'll load this as standard from 
now on.

>   my $ua = $r->headers_in->get('User-Agent');

This is more like what I expected :-)

> should do the trick.  $r, headers_in(), and get() are all the same in
> mp1. only the class in which they live is different.
> 
> see the manpage for Apache2::porting for some help here - if you have
> any mp1 documentation and make the right calls, Apache2::porting will
> help tell you which classes you need to load to make it work.

Will add this though I do want to want re-write so I am hoping to get 
more familiar with a strict MP2 approach.


> > Is there no direct replacement for $r->param('field_name') or
> > $headers_in{'User-Agent'}? If not should I just continue as I am or
> > are there better methods for getting at the request?
> 
> well, for $r->param you need libapreq2.  but $r->content or $r->args
> should be enough if you don't want to install libapreq2.

Sounds useful 

> > 
> > Apologies in advance if I have missed this in the docs but I can't
> > find anything obvious in the Request::* documentation. I also am a
> > bit OO illiterate.
> 
> for the most part the API stemming from $r is exactly the same between
> mp1 and mp2.  there are a few exceptions, of course, but for the stuff
> you'll be using 90% of the time any source of documentation should be
> sufficient to get you started.
> 
> see also ModPerl::MethodLookup, especially the command-line interface
> (which will help you translate a documented method into the required
> class) and preload_all_modules(), which will help get things running
> as you learn.
> 
> HTH
It certainly does thank you v. much.
Dp.

> --Geoff
> 

Re: Help with request data

[Geoffrey Young <ge...@modperlcookbook.org>]

Dermot Paikkos wrote:
> Hi
> 
> MP2 RC5
> 
> I am moving from a MP1 to MP2 server and am having trouble. I have 
> opted to re-write the scripts I had so I could add some more 
> functions.
> 
> I am struggling tring to find methods to access my form data and 
> other headers. I am currently using
> 
> my $form_data = $r->the_request() 
> 
> and split the line from there to access the form values. 
> 
> For other headers I am using 
> my $string = $r->as_string;
> (my $user-agent) = ($string =~ /User-Agent:(.*)\sAccept/);
> 

ugh!  :)

> I can get to where I want but I have the feeling I am taking the long 
> way to do it. The cook book I have on mod_perl doesn't cover MP2.

in this case everything is the same

  use APR::Table;
  use Apache2::RequestRec;

  my $ua = $r->headers_in->get('User-Agent');

should do the trick.  $r, headers_in(), and get() are all the same in mp1.
only the class in which they live is different.

see the manpage for Apache2::porting for some help here - if you have any
mp1 documentation and make the right calls, Apache2::porting will help tell
you which classes you need to load to make it work.

> 
> Is there no direct replacement for $r->param('field_name') or
> $headers_in{'User-Agent'}? If not should I just continue as I am or 
> are there better methods for getting at the request?

well, for $r->param you need libapreq2.  but $r->content or $r->args should
be enough if you don't want to install libapreq2.

> 
> Apologies in advance if I have missed this in the docs but I can't 
> find anything obvious in the Request::* documentation. I also am a 
> bit OO illiterate.

for the most part the API stemming from $r is exactly the same between mp1
and mp2.  there are a few exceptions, of course, but for the stuff you'll be
using 90% of the time any source of documentation should be sufficient to
get you started.

see also ModPerl::MethodLookup, especially the command-line interface (which
will help you translate a documented method into the required class) and
preload_all_modules(), which will help get things running as you learn.

HTH

--Geoff