Re: Add a variable on http header

[Robert Schulze]

Hi,

Am 06.06.2011 14:15, schrieb Maurizio Totti:

Hi,
I would try to set an http header variable on the fly but without success :-(
I write this simple module to test the functionality


why writing a module for that? Better use Add|SetHeader et al from 
mod_headers.


with kind regards,
Robert Schulze

Re: apr_shm_attach fails with permission denied

[Robert Schulze]

Hi,

Sorin Manolache schrieb:

On Wed, Sep 2, 2009 at 14:58, Robert Schulzer...@bytecamp.net wrote:

Hi,

a module creates a named shared memory segment in the post_config hook.
During child initialisation, apr_shm_attach is called, which in my case
fails with permission denied.


Does it work if you start apache as root?


The problem was cause by giving the shm-pointer to a function, which 
should initialize the segment. Somehow the shm was initialized 
privately, I don't know what I did wrong, but fixed that now.


Robert Schulze

apr_shm_attach fails with permission denied

[Robert Schulze]

Hi,

a module creates a named shared memory segment in the post_config hook.
During child initialisation, apr_shm_attach is called, which in my case 
fails with permission denied.


Is this considered normal behaviour? How can I deal with that?

with kind regards,
Robert Schulze

correct hook function after accepting connection

[Robert Schulze]

Hi,

is there a hook for dealing with connections *before* any http data is 
read? The reason for this todo would be dropping connections from hosts 
without ever reading the request - keeping slowloris in mind.


With kind regards,

Robert Schulze

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Re: external redirect

[Robert Schulze]

Hi,

fka...@googlemail.com schrieb:


However, when I also try to set the new Location this
always causes a segmentation fault:

char* uri=apr_pstrdup(r-pool,http://localhost/abcdef;);
apr_table_setn(r-headers_out,Location,uri);

return HTTP_MOVED_TEMPORARILY;



Like others stated, it works this way, I used that in one module, too.

Maybe you should replace apr_table_setn() by apr_table_set(), which 
means that the memory for the entry will be allocated by apr_table_set() 
once more.


Rob

Re: mass virtual hosting and error-logging

[Robert Schulze]

Hi,

Ray Morris schrieb:
   If you do set DOCUMENT_ROOT, it would be great 
if you made that change in the mass virtual hosting 
module, 


Of course, that is done by my module.
What I asked for was error logging.

Rob

Re: what should be done in a vhost_db module?

[Robert Schulze]

Hi,

ed schrieb:


I'm not sure that I understand what you're doing here by creating
virtual hosts on the fly,


I mean, on request basis (from a db).
So what I wanted to know is, whether there are any hints, what a 
mod_vhost_??? module is supposed to do (or set).


I'm now setting r-server-server_hostname by allocating space from 
r-server-process-pool so I hope I have fixed the memory issues.


Are you doing this to save memory? 


This is one important fact - it saves a huge amount of memory with 
several thousands of virtualhosts.
One more interesting thing is, that apache does not need to be restarted 
when adding domains :-)


Rob

what should be done in a vhost_db module?

[Robert Schulze]

Hi,

I'm currently working on a module to create virtualhosts on the fly out 
of a cdb-database file.


I looked at some module which do basically the same with other data 
sources. What I now wonder is, what else I have to do except for setting 
the r-filename and maybe some script-alias-foo.


In one module I saw the following:

8

request_rec *top = (r-main)?r-main:r;

/* ... */

top-server-server_hostname = apr_pstrdup (top-pool, hostname);

r-parsed_uri.hostinfo = apr_pstrdup(r-pool,r-server-server_hostname);

r-parsed_uri.hostname = apr_pstrdup(r-pool,r-server-server_hostname);

8

and thats exactly where I got some problems.
I sometimes noticed, that the virtual host name in /server-status/ 
contained only weird characters, which I think is a result of freeing a 
buffer which is currently in use.
I think the problem is the wrong pool for allocating space for the 
server_hostname.


I thought I fixed that with this solution:

8

if(r-hostname!=NULL)
{
r-server-server_hostname = apr_pstrdup(r-connection-pool, 
r-hostname);
r-parsed_uri.hostinfo = 
apr_pstrdup(r-pool,r-server-server_hostname);
r-parsed_uri.hostname = 
apr_pstrdup(r-pool,r-server-server_hostname);

}

8

But that didn't fix the problem completely.

My question now: do I have to set server-server_hostname and if so, 
from which pool should I allocate the memory from?


with kind regards,

Robert Schulze

Re: Query on deletion of Request pool

[Robert Schulze]

Hi,


On Wed, Mar 26, 2008 at 10:51 PM, Arnab Ganguly [EMAIL PROTECTED]
wrote:


 In the particular box only Apache is running no other application

process is

 running.Also one more observation was when the Apache is stopped the

free -m

 doesn't result to the original memory restore.We have to reboot the box

to

 restore the original RAM.


It up to the OS to mark the freed areas as free or use it as a 
filesystem buffer or whatever buffer, as long as the memory isn't needed 
by applications.



with kind regards,

Robert Schulze