Re: Downloading SpreadSheet Data with Apache
Make sure that you set a TimeOut in httpd.conf greater than your
script's delay:
http://httpd.apache.org/docs/2.2/mod/core.html#timeout
Issac
Tyler Bird wrote:
Michael Peters wrote:
Tyler Bird wrote:
I run this script and the log files show the incrementing numbers in
the
for loop, but
whats weird is that the browser seems to still be downloading you
know
that little icon seems to be spinning
and I see no output not and html header of any line of text.
You need to tell the server not to buffer your output. Do something
like this at
the top of the routine you use to output the stream.
local $| = 1;
any ideas on why the browser is not receiving or the webserver is not
sending this content?
If you need to know what's happening HTTP wise, use some network
analyzing tool
like ethereal. But my guess is just that your web server isn't
sending the info
yet cause it's buffer isn't full.
Yes I did try this ( putting in the $| = 1 ) and the behavior did not
change the browser still appeared to be downloading
and the log files had all the numbers in the for() loop. my browser
didn't seem to receive the content-type or the body of the response (
statments below for loop )
I am going to re look over $|
Here is the full version incase there is something I am missing.
--cut
local $| = 1;
require in;
my $max = 60 * 8;
foreach ( my $i = 0; $i $max; $i++)
{
warn(sleeping, iteration: . $i);
sleep(1);
}
in::ct();
print(I rendered);
-- end
Re: +ParseHeaders random corruption
Mark Farver wrote: Perrin Harkins wrote: On 9/21/07, Mark Farver [EMAIL PROTECTED] wrote: Searching my harddrive, those strings appear in the mysql driver but we've seen chunks of the gpl, and other weird random data in those errors. It almost looks like a wild pointer. Maybe some kind of threading issue? Are you running the prefork MPM? I thought that too, but we're running the prefork MPM. Souds like a script that sometimes sends out headers, sometimes doesn't. How does this behave when running under single-user mode ? I would venture a guess that it has to do with some global code printing headers triggered at require/use time or some such. PerlRun is quite different between mod_perl 1 and 2. Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107 88C3A5A5 http://gozer.ectoplasm.org/ m/gozer\@(apache|cpan|ectoplasm)\.org/ signature.asc Description: OpenPGP digital signature
Re: Problem with RequestRec and Headers
jk jk wrote:
I'm trying to port a preexisting CGI app to mod_perl2 and could use some
help.
Here goes a test case that should illustrate my problem:
The code pasted below loads the page properly the first time it's
accessed. However, upon multiple reloads in firefox, the headers either
disappear altogether or the page is downloaded in the download manager.
I assume this is because the wrong $r object is being accessed by the
request? In any case, I'm at a loss and would really appreciate some
input. Thanks in advance.
[...]
=
File: testme/testmod.pm
=
package testme::testmod;
use Apache2::RequestUtil;
use strict;
use base qw /Class::Singleton/;
^^
From the documentation of Class::Singleton:
# this only gets called the first time instance() is called
sub _new_instance{
my ( $class, $r ) = @_;
my $self = {};
bless $self, $class;
$self-{r} = $r;
return ( $self );
}
So effectively, your code will capture the $r (once for each child)
from the first request and keep it forever. Trying to use it for subsequent
requests will cause the kind of problems you've seen.
Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107 88C3A5A5
http://gozer.ectoplasm.org/ m/gozer\@(apache|cpan|ectoplasm)\.org/
signature.asc
Description: OpenPGP digital signature
Re: [OT] Client authentication
Bill Moseley wrote: This isn't mod_perl related, but I'm hoping someone here has experience in this area and can provide some feedback. Recommendation of a better list for this question is also welcome. I have a mod_perl/SOAP::Lite server application where I need to authenticate the connecting clients. The clients are all SOAP::Lite applications and connect to the server over the Internet. The server allows SSL connections only, and the server has a list of IP addresses of the clients that are allowed to connect. I'm also looking at using client certificates, which is something I have not setup before. First, I'm not clear in this closed application if I need a real CA or if I can self-sign and be my own CA. (I read someplace that this should be avoided for performance reasons, although that might have been referring to use in web browsers.) If it's an internal application, I'd go 100% self-signed with your own CA. It's not hard, and it will save you tons of $$$. I'm also not clear if there's an advantage to using a client certificate. Another other option would be a shared secret and generate a message digest that can be verified on the server side. If the concern is that someone might spoof an IP address then the shared secret seems adequate. If the secret is ever compromised, you have to update every single client/server out there. If a client cert is compromised, you revoke it and carry on doing business as usual. If the concern is that someone might hack a client machine and make fake requests to the server then it seems the hacker would have access to the client cert just as easily as the shared secret. Yup, but you can revoke a client-cert, not a shared secret... But, as I said, I have not used client certs before so I might be missing a key point. Oh, and a bonus point. Client applications can generate their own certs, and only get your CA to sign them. It's a much neater approach IMO. And totally worth the slight extra complexity of running your own CA. Check out TinyCA as a good simple tool for this kind of CA (http://tinyca.sm-zone.net/) Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107 88C3A5A5 http://gozer.ectoplasm.org/ m/gozer\@(apache|cpan|ectoplasm)\.org/ signature.asc Description: OpenPGP digital signature
Re: Problem with RequestRec and Headers
Why is that? Class::Singleton is modperl compatible, Apache::Singleton is
the same thing with a few more features. Its purpose to simplify singleton
application creation. My understanding was it would only allow a single
instance of the object to be created for each request, not forever. Please
explain your reasoning. Thanks. --JAK
On 9/23/07, Philippe M. Chiasson [EMAIL PROTECTED] wrote:
jk jk wrote:
I'm trying to port a preexisting CGI app to mod_perl2 and could use some
help.
Here goes a test case that should illustrate my problem:
The code pasted below loads the page properly the first time it's
accessed. However, upon multiple reloads in firefox, the headers either
disappear altogether or the page is downloaded in the download manager.
I assume this is because the wrong $r object is being accessed by the
request? In any case, I'm at a loss and would really appreciate some
input. Thanks in advance.
[...]
=
File: testme/testmod.pm
=
package testme::testmod;
use Apache2::RequestUtil;
use strict;
use base qw /Class::Singleton/;
^^
From the documentation of Class::Singleton:
# this only gets called the first time instance() is called
sub _new_instance{
my ( $class, $r ) = @_;
my $self = {};
bless $self, $class;
$self-{r} = $r;
return ( $self );
}
So effectively, your code will capture the $r (once for each child)
from the first request and keep it forever. Trying to use it for
subsequent
requests will cause the kind of problems you've seen.
Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107 88C3A5A5
http://gozer.ectoplasm.org/ m/gozer\@(apache|cpan|ectoplasm)\.org/
Re: Problem with RequestRec and Headers
I've been trying to use Apache::Singleton::Request under the assumption that
you're right about Class::Singleton being the crux of the issue.
Unfortunately, I can't get it working under Apache2. Is there a different
module for mp2/apache2 ? Thanks for your patience. --JAK
On 9/23/07, jk jk [EMAIL PROTECTED] wrote:
Why is that? Class::Singleton is modperl compatible, Apache::Singleton is
the same thing with a few more features. Its purpose to simplify singleton
application creation. My understanding was it would only allow a single
instance of the object to be created for each request, not forever. Please
explain your reasoning. Thanks. --JAK
On 9/23/07, Philippe M. Chiasson [EMAIL PROTECTED] wrote:
jk jk wrote:
I'm trying to port a preexisting CGI app to mod_perl2 and could use
some
help.
Here goes a test case that should illustrate my problem:
The code pasted below loads the page properly the first time it's
accessed. However, upon multiple reloads in firefox, the headers
either
disappear altogether or the page is downloaded in the download
manager.
I assume this is because the wrong $r object is being accessed by the
request? In any case, I'm at a loss and would really appreciate some
input. Thanks in advance.
[...]
=
File: testme/testmod.pm
=
package testme::testmod;
use Apache2::RequestUtil;
use strict;
use base qw /Class::Singleton/;
^^
From the documentation of Class::Singleton:
# this only gets called the first time instance() is called
sub _new_instance{
my ( $class, $r ) = @_;
my $self = {};
bless $self, $class;
$self-{r} = $r;
return ( $self );
}
So effectively, your code will capture the $r (once for each child)
from the first request and keep it forever. Trying to use it for
subsequent
requests will cause the kind of problems you've seen.
Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107 88C3A5A5
http://gozer.ectoplasm.org/ m/gozer\@(apache|cpan|ectoplasm)\.org/
Re: Problem with RequestRec and Headers
On 9/23/07, jk jk [EMAIL PROTECTED] wrote: I've been trying to use Apache::Singleton::Request under the assumption that you're right about Class::Singleton being the crux of the issue. Unfortunately, I can't get it working under Apache2. Is there a different module for mp2/apache2 ? It should be easy to port if you want to. I wonder why you're trying to use a singleton at all though. It seems like either you should create a new object every time, or just use class methods if you don't need an object. If this was just to get access to the request object, you don't need it. You can always get the request object from anywhere using Apache2::RequestUtil. By the way, a quick look at Class::Singleton confirms what Philippe said: the instance() method just returns an existing instance after the first call and ignores all parameters. It's not a mod_perl incomaptibilty; it's the intended behavior of the module. - Perrin
Re: Problem with RequestRec and Headers
I'm trying to port a pre-existing application built using a singleton design. Various class instances use a __PACKAGE__::getInstance() method to get a handle on the current request's instance. getInstance just returns $self which is a global variable. This works as a cgi, since every request is in a separate interpreter. It does not in mod_perl for obvious reasons. It was my impression that the most direct method of porting would be to use Class::Singleton (Apache::Singleton::Request). Any other ideas? Thanks. --JAK On 9/23/07, Perrin Harkins [EMAIL PROTECTED] wrote: On 9/23/07, jk jk [EMAIL PROTECTED] wrote: I've been trying to use Apache::Singleton::Request under the assumption that you're right about Class::Singleton being the crux of the issue. Unfortunately, I can't get it working under Apache2. Is there a different module for mp2/apache2 ? It should be easy to port if you want to. I wonder why you're trying to use a singleton at all though. It seems like either you should create a new object every time, or just use class methods if you don't need an object. If this was just to get access to the request object, you don't need it. You can always get the request object from anywhere using Apache2::RequestUtil. By the way, a quick look at Class::Singleton confirms what Philippe said: the instance() method just returns an existing instance after the first call and ignores all parameters. It's not a mod_perl incomaptibilty; it's the intended behavior of the module. - Perrin
Re: Problem with RequestRec and Headers
AFAIK Apache::Singleton works for MP2, also it does both per request and per
process singletons.
On 9/24/07, jk jk [EMAIL PROTECTED] wrote:
I've been trying to use Apache::Singleton::Request under the assumption
that you're right about Class::Singleton being the crux of the issue.
Unfortunately, I can't get it working under Apache2. Is there a different
module for mp2/apache2 ? Thanks for your patience. --JAK
On 9/23/07, jk jk [EMAIL PROTECTED] wrote:
Why is that? Class::Singleton is modperl compatible, Apache::Singleton
is the same thing with a few more features. Its purpose to simplify
singleton application creation. My understanding was it would only allow a
single instance of the object to be created for each request, not forever.
Please explain your reasoning. Thanks. --JAK
On 9/23/07, Philippe M. Chiasson [EMAIL PROTECTED] wrote:
jk jk wrote:
I'm trying to port a preexisting CGI app to mod_perl2 and could use
some
help.
Here goes a test case that should illustrate my problem:
The code pasted below loads the page properly the first time it's
accessed. However, upon multiple reloads in firefox, the headers
either
disappear altogether or the page is downloaded in the download
manager.
I assume this is because the wrong $r object is being accessed by
the
request? In any case, I'm at a loss and would really appreciate
some
input. Thanks in advance.
[...]
=
File: testme/testmod.pm
=
package testme::testmod;
use Apache2::RequestUtil;
use strict;
use base qw /Class::Singleton/;
^^
From the documentation of Class::Singleton:
# this only gets called the first time instance() is called
sub _new_instance{
my ( $class, $r ) = @_;
my $self = {};
bless $self, $class;
$self-{r} = $r;
return ( $self );
}
So effectively, your code will capture the $r (once for each child)
from the first request and keep it forever. Trying to use it for
subsequent
requests will cause the kind of problems you've seen.
Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107
88C3A5A5
http://gozer.ectoplasm.org/
m/gozer\@(apache|cpan|ectoplasm)\.org/
Re: Newbie - Samples or Tutorials
aqua wrote: Thanks for your email. I am actually looking for current mod perl related tutorials and not just Perl related. This HoptScripts site contains 3 mod_perl related tutorials and they are very old (2000). Why not drop by Amazon and pick up the mod_perl 2 book instead? It's just released: http://www.amazon.com/mod_perl-Users-Guide-Stas-Bekman/dp/0977920119
Re: [OT] Client authentication
Bill Moseley wrote: On Sun, Sep 23, 2007 at 01:44:44AM -0700, Philippe M. Chiasson wrote: If the concern is that someone might spoof an IP address then the shared secret seems adequate. If the secret is ever compromised, you have to update every single client/server out there. If a client cert is compromised, you revoke it and carry on doing business as usual. If the concern is that someone might hack a client machine and make fake requests to the server then it seems the hacker would have access to the client cert just as easily as the shared secret. Yup, but you can revoke a client-cert, not a shared secret... Hum, perhaps I'm missing something. The shared secret can be a single pair between a specific client and the server. The server is setup with a list of known secrets, so it's possible that each client has its own secret pair with the server. If a client is compromised then just that secret pair is removed/replaced and other clients continue. That's correct, however, the idea with public-key crypto (as in this case) is that the key generation can be handled by the clients themselves, and the CA's responsability is just signing stuff. But in your case, if managing shared-secrets in this way is not a problem, then it doesn't matter what approach you chose. But, as I said, I have not used client certs before so I might be missing a key point. Oh, and a bonus point. Client applications can generate their own certs, and only get your CA to sign them. It's a much neater approach IMO. And totally worth the slight extra complexity of running your own CA. Plus, it all happens at a higher level. The shared secret has to be at the application, where mod_ssl can handle client cert. It's just something I need to learn more about... Applied Cryptography - Bruce Schneier (http://www.amazon.com/dp/0471117099) Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107 88C3A5A5 http://gozer.ectoplasm.org/ m/gozer\@(apache|cpan|ectoplasm)\.org/ signature.asc Description: OpenPGP digital signature
Re: Problem with RequestRec and Headers
I looked at the source. It does seem to be written for both. My
understanding was that everything for apache2 was supposed to be in the
Apach2:: namespace. In any case I posted the install error below. Does an
environment variable need to be set?
perl Makefile.PL
Warning: prerequisite mod_perl 0 not found.
Writing Makefile for Apache::Singleton
If I install it anyway I get [Sun Sep 23 15:09:49 2007] [error] Can't
locate Apache/RequestUtil.pm in @INC (@INC contains:..
Thanks. --JAK
On 9/23/07, bharanee rathna [EMAIL PROTECTED] wrote:
AFAIK Apache::Singleton works for MP2, also it does both per request and
per process singletons.
On 9/24/07, jk jk [EMAIL PROTECTED] wrote:
I've been trying to use Apache::Singleton::Request under the assumption
that you're right about Class::Singleton being the crux of the issue.
Unfortunately, I can't get it working under Apache2. Is there a different
module for mp2/apache2 ? Thanks for your patience. --JAK
On 9/23/07, jk jk [EMAIL PROTECTED] wrote:
Why is that? Class::Singleton is modperl compatible,
Apache::Singleton is the same thing with a few more features. Its purpose
to simplify singleton application creation. My understanding was it would
only allow a single instance of the object to be created for each request,
not forever. Please explain your reasoning. Thanks. --JAK
On 9/23/07, Philippe M. Chiasson [EMAIL PROTECTED] wrote:
jk jk wrote:
I'm trying to port a preexisting CGI app to mod_perl2 and could
use some
help.
Here goes a test case that should illustrate my problem:
The code pasted below loads the page properly the first time it's
accessed. However, upon multiple reloads in firefox, the headers
either
disappear altogether or the page is downloaded in the download
manager.
I assume this is because the wrong $r object is being accessed by
the
request? In any case, I'm at a loss and would really appreciate
some
input. Thanks in advance.
[...]
=
File: testme/testmod.pm
=
package testme::testmod;
use Apache2::RequestUtil;
use strict;
use base qw /Class::Singleton/;
^^
From the documentation of Class::Singleton:
# this only gets called the first time instance() is called
sub _new_instance{
my ( $class, $r ) = @_;
my $self = {};
bless $self, $class;
$self-{r} = $r;
return ( $self );
}
So effectively, your code will capture the $r (once for each child)
from the first request and keep it forever. Trying to use it for
subsequent
requests will cause the kind of problems you've seen.
Philippe M. Chiasson GPG: F9BFE0C2480E7680 1AE53631CB32A107
88C3A5A5
http://gozer.ectoplasm.org/
m/gozer\@(apache|cpan|ectoplasm)\.org/
