OK. I get all that. Now I'm getting a very strange error when I try to use
the hook. the error from the error_log is: Undefined subroutine
&Apache::Upload::handler called at /dev/null line 1.
Here is the code that calls the hook:
sub header_parser_handler($)
{
my $=shift;
my $hook_handler= sub {
my ($upload, $buf, $len, $hook_data)=@_;
$hook_cache->set($hook_data,$len);
Apache->log_error("$hook_data: got $len bytes for ".$upload->name);
};
my %cookies=Apache::Cookie->fetch;
my $u_id=$cookies{u_id}->value;
my
$q=Apache::Request->instance($r,TEMP_DIR=>"/home/www/spool",HOOK_DATA=>"$u_i
d",UPLOAD_HOOK=>$hook_handler);
return OK;
}
Any idea what's going on here?
Issac
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----- Original Message -----
From: "Joe Schaefer" <[EMAIL PROTECTED]>
To: "Issac Goldstand" <[EMAIL PROTECTED]>
Cc: <[EMAIL PROTECTED]>
Sent: Monday, October 08, 2001 19:16
Subject: Re: Apache::Request UPLOAD_HOOK
> "Issac Goldstand" <[EMAIL PROTECTED]> writes:
>
> > The documentation on how to use this feature is a bit sketchy...
>
> Yes, I agree. Doc patches are always welcome.
>
> Comments below are from memory since I last tested this feature
> about 6 months ago.
>
> > Can anyone explain: 1) What the variables passed to the callback
> > function are (looks like the Apache::Upload object is the first, but
> > what's been filled in there when the hook gets called?
>
> The current upload object goes there when the hook is called.
>
> > The second looks like the current bunch of data that's been
> > recieved[?],
>
> Right, it's the buffer from apache's ap_get_client_block,
> which is usually around 2-4 KB. The hook runs before the
> buffer gets written to the underlying tempfile, but as soon
> as your hook has completed, Apache::Request will write it
> automatically.
>
> > the third is the length, but is that the length recieved so far or the
> > length recieved between the last time it was called and this time?
>
> The length of the buffer; the same as length($buffer).
>
> > And lastly, what can be placed in HOOK_DATA - scalar only?)
>
> Yes, but the scalar can also be a ref to an array or hash.
>
> > 2) Is there any way of knowing how often the hook will get called?
>
> Not really- it's called when apache calls ap_get_client_block.
>
> > 3) Is there a specific phase of the Request that Apache::Request
> > must be called and initialized with the callback before?
>
> The hooks get run as the data is uploaded to the server,
> which IOW is when the data is first being parsed. This
> can happen at any phase you choose, but it only happens
> once per request.
>
> > 4) Are there any specific issues for using this with
> > Apache::Request->instance ?
>
> Other than (3), I don't think so- but as I said before
> this is not a well-tested feature (yet :)
>
> HTH
> --
> Joe Schaefer
>
