Re: Perl Cookbook modperl chapter
Hi, I only speak for myself, but I am happy to see mod_perl covered in the Perl Cookbook. Why you ask? I see the inclusion of mod_perl helping increase the size of the mod_perl pie. A rising tide lifts all boats. I'm not too worried about the content. I'm sure it will be top-notch. Consider that the Perl Cookbook already gives you good coverage of several complex domain specific areas: DBI, LWP, CGI, Sockets, Tk, etc. I'll be very happy if the Perl Cookbook gets the novice mod_perl programmer started and then leads them to the mpDC, which is really an intermediate to advanced work. My only concern? If the Perl Cookbook gets any larger I might throw out my back carrying it around :) -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: lame load balancer, mod_proxy, and sticky sessions
On Fri, Sep 06, 2002 at 08:44:39AM -0400, Calbazana, Al wrote: Hello, I'd like to know if it is possible to use mod_proxy as a sticky session manager. Basically, I'd like to put mod_proxy behind the load balancer and allow the proxy servers to talk to the mod_perl servers. Unfortunately, the load balancer does not allow for sticky sessions and only bounces the user round-robin style. I am playing with the idea of sending a cookie down to the client and using it to stick a user to a particular mod_perl server, but I'd like mod_proxy to figure it out which server and send the user to the defined machine. I'd also like to enable a checking mechanism to determine if a mod_perl server is up before the user is sent to the location specified in the cookie. If the machine that the client is stuck to is down, I'd like to reroute. I know high powered load balancers do this already, but I'd like to explore dedicating a few medium sized servers to do as there is surplus of these and f5's cost $$$. I apologize in advance if this is a bit off topic! Two things come to mind. First mod_rewrite has plenty of features that will let you do primitive load balancing. See http://httpd.apache.org/docs/misc/rewriteguide.html Look at the examples that show how to combine a cookie with the URI and you can use regexes to control which host is chosen. Also check out mod_backhand (discussed on this list, check the archives) http://www.backhand.org/ -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: Apache::Util::ht_time outputs dates in local language
On Fri, Sep 06, 2002 at 05:03:32PM +0200, pascal barbedor wrote: When I have caching problems, I run my pages through cachability to find out where they are failing. Check it out at: http://www.web-caching.com/cgi-web-caching/cacheability.py It reports on page headers as well as gives useful info like the following: Hi thanks this helped me determine why the cache did not work is it because the date format of Expires or Last-Modified was not RFC correct I noted on the occasion that Apache::Util::ht_time() outputs dates in locale language format (french for me) Mar, 12 Sept 2002 18:50:20 GMT instead of english ones This function wraps an apache function (apr_ht_time()) which in turn uses strftime() to do the conversion. Try changing your LC_TIME or LANG variable before you start your web server. Perhaps start by setting LANG=C and go from there. Consult the strftime() man page for details on the interaction between the environment variables and the time output. Cheers, Paul -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: Mail::Sender modperl.
Another chunk of sample code is available in chapter 15 of The
mod_perl Developer's Cookbook. The Cookbook::Mail module uses
MIME::Lite and Email::Valid to send data/attachments around.
Feel free to adapt it to suit your needs:
http://www.modperlcookbook.org/code/ch15/Cookbook/Mail.pm
Regards
On Mon, Jul 22, 2002 at 10:48:52AM -0700, Goehring, Chuck Mr., RCI - San Diego wrote:
Richard,
I also use MIME::Lite (on Win2000) with mod_perl. Found it to be quite reliable and
it supports attachments and receipts like so:
if($aReceipt ne '') { # If return receipt requested.
$msg-add(Disposition-Notification-To= $aApobj-getEmail_Address);
}
Chuck
-Original Message-
From: Richard Clarke [mailto:[EMAIL PROTECTED]]
Sent: Saturday, July 20, 2002 6:28 AM
To: [EMAIL PROTECTED]
Subject: Mail::Sender modperl.
List,
Have any of you had any problems using Mail::Sender from within
mod_perl. My script seems to just sit there waiting for $sender-Open to
do anything. I will email the author also but imagined he *might* not be
familiar with mod_perl so won't be able to offer any suggestions.
Anyone? I looked through the archives but saw no reference to a problem
like this. Some people indicated much success with Mail::Sender (not so
for me however!).
Second, the recommended solution for sending mails is to instead put
them on a queue for an external daemon to handle. My question is, is
there a standard implementation people use when doing this. Is the KISS
theory invoked and the outoing mail simply written to some plain text
spool file or do people use something more involved like writing the
to,cc,from,subject,body test to a database and storing any temporary
files (attachment) in a directory for later encoding?
Ric
p.s. here is an excerpt from my apache log indicating precisely what happens
220 mail.likewhoa.com ESMTP Postfix
421 Error: timeout exceeded
ehlo localhost
mail from: [EMAIL PROTECTED]
rcpt to: [EMAIL PROTECTED]
data
To: [EMAIL PROTECTED]
From: [EMAIL PROTECTED]
X-Mailer: Perl script null
using Mail::Sender 0.7.14.1 by Jenda Krynicky
running on localhost (127.0.0.1)
under account root
Date: Sat, 20 Jul 2002 13:18:12 -
Message-ID: [EMAIL PROTECTED]
Subject: msg msg msg
close sender
.
quit
done
The request took 305.710375070572 seconds
--
Paul Lindner[EMAIL PROTECTED] | | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org/
Human Rights Declaration http://www.unhchr.ch/udhr/
Re: HTML::Entities chokes on XML::Parser strings
The output from your example looks like UTF-8 data (Atilde; is a
commonly seen UTF-8 escape sequence). XML::Parser converts all
incoming text into UTF-8. You will need to convert it back to
iso-8859-1.
My favorite is Text::Iconv
use Text::Iconv;
$utf8tolatin1 = Text::Iconv-new(UTF-8, ISO8859-1);
my $buffer_latin1 = $converter-convert($buffer);
On Tue, May 07, 2002 at 10:51:10AM -0400, John Siracusa wrote:
I ran into this problem during mod_perl development, and I'm posting it to
this list hoping that other mod_perl developers have dealt with the same
thing and have good solutions :)
I've found that strings collected while processing XML using XML::Parser do
not play nice with the HTML::Entities module. Here's the sample program
illustrating the problem:
#!/usr/bin/perl -w
use strict;
use HTML::Entities;
use XML::Parser;
my $buffer;
my $p = XML::Parser-new(Handlers = { Char = \xml_char });
my $xml = '?xml version=1.0 encoding=iso-8859-1?test' .
chr(0xE9) . '/test';
$p-parse($xml);
print encode_entities($buffer), \n;
sub xml_char
{
my($expat, $string) = @_;
$buffer .= $string;
}
The output unfortunately looks like this:
Atilde;copy;
Which makes very little sense, since the correct entity for 0xE9 is:
eacute;
My current work-around is to run the buffer through a (lossy!?) pack/unpack
cycle:
my $buffer2 = pack(C*, unpack(U*, $buffer));
print encode_entities($buffer2), \n;
This works and prints:
eacute;
I hope it is not lossy when using iso-8859-1 encoding, but I'm guessing it
will maul UTF-8 or UTF-16. This seems like quite an evil hack.
So, what is the Right Thing to do here? Which module, if any, is at fault?
Is there some combination of Perl Unicode-related use statements that will
help me here? Has anyone else run into this problem?
-John
--
Paul Lindner[EMAIL PROTECTED] | | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org/
Human Rights Declaration http://www.unhchr.ch/udhr/
Re: HTML::Entities chokes on XML::Parser strings
On Tue, May 07, 2002 at 11:13:43AM -0400, John Siracusa wrote: On 5/7/02 10:58 AM, Paul Lindner wrote: The output from your example looks like UTF-8 data (Atilde; is a commonly seen UTF-8 escape sequence). XML::Parser converts all incoming text into UTF-8. You will need to convert it back to iso-8859-1. My favorite is Text::Iconv use Text::Iconv; $utf8tolatin1 = Text::Iconv-new(UTF-8, ISO8859-1); my $buffer_latin1 = $converter-convert($buffer); So HTML::Entities only works with ISO8859-1 (or ASCII, presumably)? What if I have actual UTF-8 data? Won't conversion to ISO8859-1 in service of HTML::Entities result in data loss? Yes, HTML::Entities is based on ISO8859-1 input only. BTW, for better performance in mod_perl consider using Apache::Util::escape_html() escape_html This routine replaces unsafe characters in $string with their entity representation. my $esc = Apache::Util::escape_html($html); Anyway, back to character entities.. Text::Iconv will fail if you try to convert unconvertable text, so at least you can test for that condition (and adjust accordingly) BasisTech sells a comprehensive unicode library called Rosette that knows how to automatically convert to a target character set while incorporating SGML entities for any character set. Perhaps it's time for an open implementation of that.. Also see http://rf.net/~james/perli18n.html for a perl i18n faq. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: SOAP and web services
On Thu, May 02, 2002 at 01:27:48PM -0500, Joe Breeden wrote: Bart, I would have to recommend SOAD::Lite ( http://www.soaplite.org) also. We use it accomplish many tasks - not the least of which is exposing Perl data structures to M$ ASP applications - which have a moderate load and have had no problems. A few more examples can be found in chapter 15 of the mod_perl cookbook. The (fairly simple) code in HalfLife-QueryServer is here: http://www.modperlcookbook.org/code/ch15/ Another simple way to do RPC over HTTP with mod_perl is RPC::XML. Both it and SOAP::Lite are testaments to the power and simplicity of perl+apache.. -Original Message- From: Bart Frackiewicz [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 02, 2002 12:34 PM To: [EMAIL PROTECTED] Subject: SOAP and web services Dear List, i want to create a server in mod_perl/apache, which receives request via get/post (plain), process this request (with database access and some functions) and answers in xml (with correct header), after planning this about a month i realized that this is called a web service. the difference between my solution and all articles was SOAP, which i understand as an extension to http, so in my opinion i need something that allows to parse the request and creates the output, is there a solution for mod_perl anyway? and is this solution stable for a production server which more than 10.000 request/day? i hope this is the right place to ask, but in all articles i read there were only examples for java/tomcat, not for perl/mod_perl. Thanks in advance Bart Frackiewicz -- BART FRACKIEWICZ systementwickler inity - agentur fuer neue medien gmbh birkenstrasse 71 40233 duesseldorf -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: XML::RPC
On Sat, Apr 20, 2002 at 11:49:24PM -0400, Eric Frazier wrote: Hi, I am finally finding yes, there could be a reason for me to use this, I want to avoid SOAP, partly because of the license crap(fear), but also because I figure that XMLRPC will be easier to learn at first and likely will fit my small needs. But as I look at examples and various tools that support working with Perl they often are of a nature of a CGI and a standalone client. My needs aren't that small :) The only Apache modules I have found are with the SOAP::Lite module. So what do the you people recommend? I have found several, Frontier::RPC, there is a SOAP::Lite XML::RPC module, but it depends on SOAP::Lite which I find confusing, there is just RPC::XML on CPAN. Most important though, I of course want to run the server with mod_perl which is the only reason I consider this post to be somewhat on topic, I really want to use mod_perl with this and what group would be better to advise me on that :) What I want to be able to do is to expose some simple method calls, along with some hash data to a Java client. Say like a parser object from HTML::Parser. The client will be Java, but I get the idea that shouldn't really matter. Sorry if my terminology is off, I am swimming a bit.. I think you'll find RPC::XML to be a solidly engineered module. I've used it as a client and as a server to good effect. It includes stand-alone, CGI, and mod_perl based servers and a very nice client. If all you need is simple RPC calls I find that XML-RPC provides a much more straightforward environment. Even with my background in http based rpc systems it took me a while to pick up on the idiosyncrasies of SOAP. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: Apache::DProf seg faulting
On Tue, Apr 16, 2002 at 06:05:11PM -0400, Sam Tregar wrote: On Tue, 16 Apr 2002, Sam Tregar wrote: On 16 Apr 2002, Garth Winter Webb wrote: Sam, try getting rid of the 'PerlModule Apache::DB' line. I've used Apache::DProf w/o any problems by including only the one PerlModule line. Since they both want to use perl debugging hooks, I'm guessing that Apache::DProf is getting crashed up when it tries to use hooks already grabbed by Apache::DB... Same result. Thanks though! Aw nuts, that was the problem! I thought I'd tried that already, but I guess not. I actually got those PerlModule lines from the mod_perl Developers Cookbook - guess this is an errata! I think that this may be a problem with the use of Perl sections. I believe your original post had something like this: Perl use Apache::DProf use Apache::DB Apache::DB-init(); /Perl Geoffrey and I tested our environments today and the recipe given in the book seems to work just fine: PerlModule Apache::DB PerlModule Apache::DProf -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Help us make the mod_perl Developer's Cookbook better.
Hi there. First of all, thanks to all of those who are now using the mod_perl Developer's Cookbook. We hope that it's made your development easier and more fun. Due to the continued popularity of the book, a 2nd printing is being planned in the next week or so. This is nice because we're allowed to correct minor errors. We'd appreciate your help in fixing any errors in the text or code. No-one's perfect (especially us, look at our errata page!), so if you've noticed anything amiss that's not listed at: http://www.modperlcookbook.org/errata.shtml please send it to [EMAIL PROTECTED] asap. Thanks again! -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: [OT?] What exactly is forwarding?
On Tue, Mar 12, 2002 at 10:01:42AM +0100, Martin Haase-Thomas wrote: Hi all, I know this is not perfectly the right list for my topic, but before subscribing to another for just one question... forgive me if I'm going to be boring. Even more, because my question is rather philosophical. If you consider JSPs, there is a tag called jsp:forward page=... /. My question is: how do I have to understand 'forward'? The java documentation isn't that verbose, and I can imagine two possible meanings: 1. Forwarding is some sort of an internal redirect to the servlet engine which the browser will not be informed of. From this point of view forwarding will be nearly the same as a dynamic include. *ding* correct! Basically it says, dump any buffered output and start a new request. 2. Forwarding is the same as a redirect. nope, see above. Maybe a superfluous question for some of you, for me it isn't actually. So, if anyone knows an answer - or knows the number of the RFC I'll find the information: you're welcome! You'll find that $r-internal_redirect() is the mod_perl equivalent. Also Apache::ASP containts the Transfer() method which accomplishes the same thing. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: BerkeleyDB Problems
On Tue, Mar 12, 2002 at 11:06:00AM -0500, Mark Matthews wrote: Hello, I am moving a website that now resides on a i686 server running RedHat 6.2 with perl v5.005_03 to another i686 server running Suse 7.1 with perl v5.6.1. The website uses a number of cgi scripts that read and write from BerkeleyDB files using the tie function. The site is currently running fine on the RedHat server, but when testing the scripts on the Suse box I am finding the the scripts are failing complaining that the db file cannot be opened. The function calling the script is as follows... $db = blurb; tie(%BLURB, DB_File, $db, O_RDONLY, 0664) || die(Error: could not open $db: $!\n); Things I have tried so far.. - I have checked that the BerkeleyDB file (blurb) in the right path, and is readable/writable. - I have checked that the DB file is not corrupt by ftping it back to the RedHat box and testing it.. Works fine.. - the command file blurb shows that the db file is Berkeley DB (Hash, version 5, native byte-order) and my guess is the version of DB_File cannot read that DB version. I have installed earlier versions of DB_File on the Suse box with no luck. - I have successfully created a new db file using tie. The file created is version 7. Since these scripts do infact work on the RedHat server, what do I need to do to get them to work on the Suse server DB_File is usually implemented on top of whatever the latest Berkeley DB is available. The file formats are usually not compatible from major version to another major version. I believe RH 6.2 uses bdb v2 and Suse uses a newer version 3 or 3.1. Use the rpm -q -a command to find out which versions are which. Anyway, you need to try out the db_upgrade command, it should upgrade the db file to the latest format. It might not be installed by default, so check your local docs. (I think it's in db3-utils, or some such..) You might also try out the BerkeleyDB module for access to more interesting features provided by the later versions of this library. In particular the transactions subsystem is very, very cool. Good Luck -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: performance testing - emulating real world use
On Tue, Mar 12, 2002 at 01:52:36PM -0800, clayton cottingham wrote: Bryan Henry wrote: Anyone know of good guides or general info on performance testing and emulating real use of an application. I would like to understand how to identify potential bottlenecks before I deploy web apps. thank you, ~ b r y a n I've used HTTPD::Bench::ApacheBench (available on CPAN) to do load testing. It seems to do a good job. The hardest part is writing the testing script (especially for form transactions..). However, if you can do your requests with LWP it's fairly straightforward to convert over to the ApacheBench data structures. I'm considering writing a little mod_perl proxy server that records the different transactions. Then I could just munge the separate Authorization: headers to do some serious load testing... try httpd.apache.org/test/ and perl framework there in as well look on freshmeat for siege it does testing too -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/
Re: Breaks in mod_perl, works in Perl
On Wed, Mar 06, 2002 at 11:27:28AM -0700, Mark Hazen wrote: Mark Hazen wrote: I wish this were true, but no one will ever get IO::Scalar to catch DBI's STDERR output. If so, it's only because STDERR under mod_perl is already tied. DBI is not an external process. Throwing all this stuff into a file is already something DBI can do, but as I already said, opening several hundred files per minute will overwhelm my system. I don't think it does that. It should open one file per process that has tracing turned on and keep writing to it. I already suggested that you can just turn it on for a single process. That would mean one file being written to by one process, which is very unlikely to overwhelm any system. That's your opinion. In my opinion, a bunch of disk IO and file seeks are a waste of resources. The bigger issue here is that it is better to store in memory, and it saddens me that it doesn't seem possible. This is a design flaw of DBI then. You might get more results if you post on the DBI users list. We got part of the way there by redefining the trace_msg function, the only part that remains is gathering the output of the lower-level DBD calls, that might involve modifying some XS code, (or it might not).. Propose a 'callback' interface on dbi-users, you'll probably get a warm reception. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Breaks in mod_perl, works in Perl
; *croak = \Carp::croak; goto croak; } 1; __END__ perl -MIO::Capture $x = IO::Capture-new(\*STDERR); print now capturing\n; warn qq[captured ok\n]; print captured text 'captured ok' shouldn't have appeard\n; $y = $x-capture; print capture didn't block\n; print $y; warn Restored ok\n; __END__ now capturing captured text 'captured ok' shouldn't have appeard capture didn't block captured ok Restored ok perl -MIO::Capture $x = IO::Capture-new(\*STDERR); print now capturing\n; system(q[perl -e print STDERR qq[captured ok\n]]); print captured text 'captured ok' shouldn't have appeard\n; $y = $x-capture; print capture didn't block\n; print $y; warn Restored ok\n; __END__ now capturing captured text 'captured ok' shouldn't have appeard capture didn't block captured ok Restored ok -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: here is a good modperl question on perlmonk
On Tue, Mar 05, 2002 at 04:53:56PM -0600, Dave Rolsky wrote: On Tue, 5 Mar 2002, Medi Montaseri wrote: My suggestion would be to install a Linux on your developer's PC and keep with the distributed model. Now everyone can use a common web tree and at integeration, bring all of them to a staging box, QC it and ship it to production. Giving everyone their own Apache daemon, which uses their checked out tree of code, on a central dev server is really not a problem either. One other tip... write a small script (or modify apachectl) to start apache with a port number matched to your unix UID. This keeps developers from using clashing port numbers. httpd -c Port $UID -c Listen $UID etc.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Formatted Printing
On Tue, Feb 26, 2002 at 07:12:55PM -0800, Rasoul Hajikhani wrote: Hello folks, I have just writen an online ordering system for our company using mod_perl. The user must also be able to print the form, preserving the format. Since we use netscape (4.5) for Irix 6.5, I can't use the print button of the browser, the format is not preserved. Any one know of any modules/suggestions on this? One simple thing is to create a PDF file for the printable format. Make sure you save it in ascii format, and put simple substitution strings for each field. Then just search, replace, and output to the browser. There are also PDF modules on CPAN if you're not into templates... If fancy printing is not your thing, or you want full cross-platform compatibility consider text/plain output.. You can even send that to that 20 year old daisy wheel printer.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Frontier::Responder question
On Mon, Feb 18, 2002 at 10:25:59AM -0500, Robert Landrum wrote: I recently picked up Programming web services with XML-RPC. It mentions a module that I have yet to track down. I am unable to find Frontier::Responder. O'Reilly's site mentions that Joe Johnston wrote. Joe makes it pretty clear that he want's you to use it in place of Frontier::Daemon when writing mod_perl handlers, but never gives an address of where to find it, or how to contact him for it. The Frontier modules seem to be a little old. Are there any other newer versions that I should be using instead. The Frontier::RPC package was last modified in 1999. Check out RPC::XML. It is very well implemented, and includes Net::Server/HTTP::Daemon based server code, and a full client implementation. Highly recommended.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: mod_perl cookbook ... next steps
On Thu, Feb 21, 2002 at 01:17:02AM +0200, Issac Goldstand wrote: [EMAIL PROTECTED] wrote: [snip] As I need information between the stage of life, I would use $r-notes to communicate down the cycle. But then again, if I have some data tied to the session (I use Apache::Session), how can I give it to the PerlHandler. Is $r-notes proofed for any export, object or blessing behavior? I think $r-pnotes should work fine with this... But I'm not positive... Other than that, it sounds fine... Except that usually youll authenticate the user in PerlAuthenHandler and use AuthzHandler to decide whether or not to let him do whatever he's trying to do... The Eagle book had some nice explanations of this... If you have complex data structures pnotes() is definitely the way to go.. Highly recommended. Another alternative is to use package globals. Just make sure that your PerlInitHandler and PerlCleanupHandler re-initializes them before every request.. Note: I have not compared the speed differences between these two approaches. I would assume the latter would be a little faster. Of course it will make your code non-thread-safe, so it's not so good for potential mod_perl 2.0 compatibility.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: [BUG] Memory Courruption (was: RE: [Q] SIGSEGV After fork())
On Fri, Feb 15, 2002 at 11:44:03AM -0600, Fister, Mark wrote: Dear mod_perl experts: Collectively, we've been at this for more than two weeks and have searched various mod_perl archives, all to no avail. Symptom: === SIGSEGV after fork(). Very reproducible. Memory corruption gets moved around if the codebase changes. [ SNIP ] The above is the key: moved around. Therefore, I need Purify or similar tool. I'm going to have to go this route, since nobody has any ideas. Go go gadget purchasing! :( The only other way I can think of to solve this is to send my module list to this audience. Please find it, attached, with home-grown modules deleted. To further diagnose this problem you might consider using the sigtrap module and paying careful attention to your logs... This at least led me to the portion of my perl that was causing the problem. A simple use sigtrap; The default signal handler used in this module gives you a stack trace before the core dump.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: inheritance and Apache::Request
On Thu, Feb 14, 2002 at 01:55:34PM -0600, Alex Porras wrote:
Ok, that makes sense. But the reason I didn't include a new
method for FooBar was because I don't know what A::R's new method
does, so I didn't want to override it. What if it does some init
stuff to the object? I'm assuming that's what's happening because,
after adding a new method to FooBar, when I try to call
$foobar-param (which I have not overridden), the child process
segfaults. Oh well, I guess at this point I need to go back to
reading more on perl OO since it's not sinking.
I believe that Apache::Request doesn't really do inheritence properly.
If you look you'll see that the new() method is written in C. It
should be blessing itself into the passed in class, not using
Apache::Request. My XS is a little foggy, but it appears that these
lines should be modified to use the passed in class:
CLEANUP:
apreq_add_magic(ST(0), robj, RETVAL);
which ends up as:
ST(0) = sv_newmortal();
sv_setref_pv(ST(0), Apache::Request, (void*)RETVAL);
In any case all you need to do to get around this is define your own
new method and call the Apache::Request object directly and store it
as the value 'r'.. Here's an example:
sub new {
my ($class, $r) = @_;
return bless { r = Apache::Request-new($r),
}, $class;
}
Thanks for your help!
--Alex
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
The problem is that package FooBar doesn't have a new
method. Here's what happened as a result.
When you called 'FooBar-new($r), perl looked for a sub
called new in package
FooBar. Since it didn't find one, it looked at FooBar's @ISA,
and looked in
Apache::Request for a new method. There it presumably found
one, so that
statement didn't return an error. But, the new() in
Apache::Request probably
returned an Apache::Request object instead of a FooBar
object, so when you
called $form-fooey, it only looked in Apache::Request and
any modules in it's
@ISA.
You might want to look at using the universal isa and can
methods while
you're debugging and trying stuff out. Good luck!
Wes Sheldahl
--
Paul Lindner[EMAIL PROTECTED] | | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org/
Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: About PerlLogHandler phase
On Mon, Feb 11, 2002 at 06:31:25PM -0800, Randy J. Ray wrote:
* If I install a handler for PerlLogHandler, does the normal logging still
take place? Is it a function of whether my handler returns OK, DECLINED,
etc.?
As far as I know return codes are ignored. This means that all
logging (and cleanup) handlers are called for each request.
* Are there ways to register other log types, in addition to the access,
error, etc.? Such that people could specify those (and a format) the
same way they specify the others? More to the point, so that there
might be a ready file-descriptor I could print to, rather than having to
deal with the open/lock/write/unlock/close cycle.
Apache::LogFile (section 16.2) is what you are looking for. It gives
you a global filehandle that you can print to as much as you care to.
To explain, I am looking at ways to expand the logging capability in my
Apache::RPC::Server class. I'd like at the very least to be able to alter the
URI part such that it reflects the procedure name that was called (this I
understand how to do). Ideally, I'd like to either write completely different
lines out to the access log, or (preferable) write to a separate log entirely,
so that tracking usage statistics is made that much easier. If I go the
separate log route, I don't want the server to be weighted down by the
repetitive open/close cycle on the files.
You might also want to consider setting a notes value for each piece
of information you want to log. This is detailed in section 16.4 of
the cookbook. It's dead simple, just add this to your httpd.conf:
LogFormat %{RPC_NAME}n %{RPC_ARGS}n %{RPC_RESULTS}n rpc_log_format
Location /RPCSERV
CustomLog logs/rpc_log rpc_log_format
/Location
and then somewhere in your code do this:
$r-notes('RPC_NAME', $cow);
$r-notes('RPC_ARGS', $moo);
$r-notes('RPC_RESULTS', $milk);
--
Paul Lindner[EMAIL PROTECTED] | | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org/
Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: [Straying from the Topic] Installing from scratch Apache + mod_perl + Apache::ASP (+maybe others) on unix
Two things, First check out http://www.apachetoolbox.com/ About as out-of-the-box as you can get. Last time I tried it seemed to 'do the right thing' for me. For mod_perl specifics you might also check out chapter 1 of the mod_perl Developer's Cookbook. I think it's a pretty good stab at showing a novice how to compile and install apache+mod_perl (though not mod_ssl... alas) The complete chapter is online at http://www.modperlcookbook.org/ Regards, Paul On Thu, Feb 07, 2002 at 12:04:19AM +, Ged Haywood wrote: Hi there, On Thu, 7 Feb 2002, Rod Butcher wrote: professionals are being driven mad, despite reading the Guide (which despite being complete is still mysterious, it comes across as having a mission statement to contain everything rather than to be useful, sorry). Patches, chapters, help are always welcome I'm sure. My .05 is that all development be stopped until the instal process is up to the same standard as M$. This is what made M$ rich, the sheer installability and usability. I was visiting somebody yesterday and he had Win2K installing while we talked for an hour. Yeah, I had a car like that once, but I got rid of it. When I installed the operating system on a Mac last year it took about three minutes - including all the tools, browsers and wotnot that you could wish for - with no intervention from me at all. After the pain I've been through with some W1nd0ze installations it was very refreshing. So I guess what I'm saying is that there's a lot more to it than that, or Apple would be ruling the world. 73, Ged. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org/ Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: modifying apache config at runtime
On Mon, Feb 04, 2002 at 04:47:27PM -0500, Peter Beardsley wrote: Is is possible to modify the in-memory apache configuration at runtime? I've seen modules that allow you to parse and modify the httpd.conf file, but that's not really what I'm looking for. In particular I want to set the value of ErrorDocument. If all you want to do is that you can just use the custom_response method. Here are a couple of examples... # on bad requests, redirect to some documentation $r-custom_response(BAD_REQUEST, http://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html;); # but on unauthorized requests, send to a local file $r-custom_response(FORBIDDEN, /landlubber.html); You'll have to do this for every request, because you're cannot change the global config, only the child's localized configuration.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: [OT] Re: mod_perl Developer's Cookbook (and Amazon)
On Sat, Feb 02, 2002 at 10:03:09AM -0600, Mike808 wrote: Joe Brenner wrote: Spend only $4 more, and you too can show your disgust for software patents. Worth every penny. I'm against frivolous patents myself. It harms the industry and could even be detrimental to mod_perl or Apache if either is found to infringe upon such a patent. However, please read the following articles before you boycott. The first is an open letter from Jeff Bezos, the second is a fairly lengthy article on the subject by Tim O'Reilly. http://www.amazon.com/exec/obidos/subst/misc/patents.html http://www.oreilly.com/ask_tim/patent_reform_0300.html And AllBookstores.com is now offering it at the same price as Amazon. So now it doesn't cost me anything to show my disgust for software and business model patents. As for the Amazon kickback, well, you have a sucky publisher for not giving you more of your directly generated sales. Well, sometimes you have to take what you can get... Please note that it did take some convincing to get this thing published. No one seemed to believe that there is a market for mod_perl books. I am hoping that this book is a success. Not only for the obvious altruistic reasons, but also for mod_perl itself. It's sometimes depressing going into a bookstore to find shelf-upon-shelf of Java-web books -- against a puny outcrop of mod_perl related tomes... So, to reiterate. Buy your copy whichever way suits you best. Amazon or not. In either case a big THANK YOU to all... We wouldn't even be having this discussion if it wasn't for this wonderful community. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: mod_perl Developer's Cookbook
On Thu, Jan 31, 2002 at 06:18:55PM -0800, Joe Brenner wrote: ordered my today through the website (puts a little extra money in the hands of mod_perlers: http://www.modperlcookbook.org/ I just ordered mine through fatbrain, myself... Thanks! I won't deal with amazon: http://www.noamazon.com I just added a page with direct links for eight other bookstores. It's now available at http://www.modperlcookbook.org/order.html If there's a mod_perl developer's fund I could contribute to (like YAS), I'd be glad to send them a check. Now you're talking! I wonder if YAS would consider funding perl-related projects like mod_perl? Perhaps if we had a big name (Ticketmaster?) we could get the ball rolling on such a thing.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Cross-site Scripting prevention with Apache::TaintRequest
Hi, I thought it might be interesting to start a thread on cross-site scripting attacks, since it seems that many people are not aware of the risks involved. Has anyone noticed attacks on their applications? Do you religiously check all input you get from form-submissions? What techniques do you use to insure that your application is not vulnerable? One technique that I've used is 'Tainting' input data (with PerlTaintCheck) and using a subclass of the Apache module to insure that tainted data is html-escaped. As part of the CPANification of the code in the mod_perl Developer's cookbook, I present Apache::TaintRequest, a module that helps prevent cross-site scripting attacks by automatically html-escaping 'tainted' text sent to a web browser.. Get it at http://www.modperlcookbook.org/code.html I'd be interested in hearing how others have dealt with the problem, suggestions on how this module could be used further are most welcome. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Cross-site Scripting prevention with Apache::TaintRequest
On Tue, Jan 22, 2002 at 07:11:28PM +0100, Robin Berjon wrote: On Tuesday 22 January 2002 19:04, Perrin Harkins wrote: Of course I set the charset, but I didn't know that might not be enough. Does anyone know if Apache::Util::escape_html() and HTML::Entities::encode() are safe? A quick look (I could be wrong) at HTML::Entities seems to imply that it should be safe, as it uses numeric encoding for characters that it doesn't recognize. I don't know about Apache::Util. BTW, if you don't html-escape and just search for tags you should make sure to HTML::Entities::decode() the text before processing it. I've seen cases where people disguised scripting code with numeric entities.. jav...;script etc... -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Single login/sign-on for different web apps?
On Wed, Jan 16, 2002 at 06:56:37PM -0500, Vsevolod Ilyushchenko wrote: 3) Perl-based applications can just use the module and the common key to decrypt the contents of the cookie to find the authenticated username. If the cookie is not present redirect to the central authentication page, passing in the URL to return to after authentication. Hmmm... Can I do it securely without using Kerberos? I think so. Looks like if I use https instead of http, people won't be able to steal my (encoded) session information as it is transmitted. And I can also add the IP address to the cookie information. But the cookies file might be readable by other people! If they can steal that file and change the IP address of another machine to yours, they can pretend they are you! I wonder if there is a way out of this... Yes, you use the timestamp. Just reauthenticate the user when they try to do 'sensitive' activities. For example you might allow someone to view their bank balance if they typed their password within the last 2 hours. Transferring money might require a valid password within the last 10 minutes.. Of course, the best authentication system for banking I've seen is from UBS. They send you a scratchlist of around 100 numbers. Every time you login you use one of the numbers and cross it off. Very slick. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
mod_perl in the Open Directory (www.dmoz.org)
Hi, I was recently accepted as the editor for the mod_perl category of the Open Directory Project. The ODP is an all volunteer effort to build a directory of the web. Check it out at http://dmoz.org or any number of other services that use the underlying database (AOL, Google, etc.) The mod_perl category is available at: http://dmoz.org/Computers/Software/Internet/Servers/WWW/Apache/Modules/Mod_Perl/ By expanding this category our community can do a lot to help promote mod_perl. The ODP is used by many search engines, and you'll notice Google uses it for it's search results. I'm looking forward to building up the database of links. I have a number of my own favorites, but I'd like to hear from the rest of the community. If you have a mod_perl related site please submit it at: http://dmoz.org/cgi-bin/add.cgi?where=Computers/Software/Internet/Servers/WWW/Apache/Modules/Mod_Perl I'll edit through the submissions and craft a nice new structure (probably similar to the way the PHP category is organized). Proposed categories are: Directories Documentation and FAQs Toolkits Modules I may reorganize these based on the breadth of submissions offerred. Thanks! -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Beginner's FixupHandler question
On Tue, Jan 08, 2002 at 10:07:18AM -0600, Stathy G. Touloumis wrote: I've just started learning modperl and I started with a simple module for apache httpd 1.3.22. This simple module (see below) sets gets a cookie at every request. I thought it wasn't too difficult. I put it into the fixup phase (any problem with it?). First it seemed to work, but when I put a 'print STDERR' line in it, I saw that my script ran many times on one request. What is your interpretation of 'one' request? Remember, when requesting a url there may be 'many' requests that go along with it for loading images and other media. If you don't want to set/get cookie for every request try filtering based on $r-content_type. But, your handler will still be called for every request : ) Apache provides configuration tools that can help. PerlFixupHandlers can be placed within a Location or LocationMatch container. For example: LocationMatch ^/myapp/.*html$ will insure that your fixup handler is only called on requests that start with /myaap/ and end with .html. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Error log executing scripts?
On Fri, Jan 04, 2002 at 01:13:37PM -, Matt Sergeant wrote: Hello, I was wondering if there is any way of making the error log in Apache to execute a script when an error is occurred, perhaps instead of writing the error directly to the log. There is a way to redirect errors to your own code. It's not pretty. You can see some example code that does this at http://www.modperlcookbook.org/code/ch16/ You can also download an example module that uses this code to intercept error log entries and post them to an IRC channel. Nothing like real-time errors to keep you on your toes :) You can now read that entire chapter (and two others) online at http://www.modperlcookbook.org/chapters.html Enjoy! For example, if there is a image missing Apache excutes a script that generates a replacement image? In this case you're talking about a different type of error condition. As Matt and Geoff mentioned you can use an ErrorDocument script that runs whenever this condition exists. This does not handle other output that flows into your error_log. well, you can do just about anything you want :) however, althoughit is possible to intercept the actual errors Apache (and mod_perl) generates, it is rather complex, and really not the proper approach here. Really? I would have thought it could make an interesting caching technique - on a 404 you try and generate the file, and store in that slot in the filesystem. A cache cleanup daemon runs to clean out TTL'd files. Check out Apache::CacheContent - it implements something similar, available on CPAN or at http://www.modperlcookbook.org/code.html Warning: don't try and implement this in a commercial application - it's patented by vignette. Hmmm, I implemented something like this in the early 90s... Long before vignette was even around.. -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Anyone know of specific problems with the malloc in Sun's libc?
On Sun, Dec 30, 2001 at 02:12:47PM -0600, Steven Lembark wrote: W/ current apache and mod_perl, perl-5.6.1, Solaris-2.8. Been having problems with DBI dropping connections. One suggestion was to override the default of no and use the malloc that comes with perl-5.6.1. Anyone know of problems or any obvious symptoms? I have not seen any problems with the Solaris malloc, in fact it seems that the VM behavior of our systems improved when we switched over. Consider setting the DBI_TRACE environment variable if you're having problems such as this. It will show you where your connections are going up and down. Does your DBD driver support pings? If not you should check out the Apache::DBI docs for info on how to roll your own.. If you feel like recompiling perl on solaris you might want to review the following options used to build perl with gcc 2.95.3. Seems to work well for us... CFLAGS='-pipe -mcpu=ultrasparc -mtune=ultrasparc -m32 -Wa,-xarch=v8plusa -O3 -ffast-math -fexpensive-optimizations' Configure -O -Dcc=gcc \ -Doptimize=@CFLAGS@ \ -Dlocincpth=@prefix@/include \ -Dloclibpth=@prefix@/lib \ [EMAIL PROTECTED] \ [EMAIL PROTECTED] \ -Ud_bincompat5005 \ -Ubincompat5005 \ -Uusemymalloc \ -Uinstallusrbinperl \ -Dlibperl=libperl.so \ -Duseshrplib=true \ -Dstatic_ext=Data/Dumper Fcntl IO POSIX Socket Sys/Hostname \ -Ui_db \ -Ui_ndbm \ -Ui_ndbm \ -des -- Paul Lindner[EMAIL PROTECTED] | | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: mixing cgi-bin mod_perl
On Thu, Dec 20, 2001 at 09:41:31PM +0100, Miroslav Madzarevic wrote:
The scenario:
There are two folders
/cgi-binwith plain perl cgi
/mod-perl with Apache::Registry scripts
The application is being moved from cgi to mod_perl (Apache::Registry) one
script at a time.
My friend has a strange idea.
He wants to mix cgi-bin mod_perl by testing all of the scripts in
cgi-bin and putting one cgi-script at a time into mod-perl folder.
He wants to do this internaly in Apache, changing the request for
a particular script so for example when you reference /cgi-bin/some_scr.pl
you actually end with /mod-perl/some_scr.pl. He doesn't want to
change the a href code from html files to stop pointing at /cgi-bin.
By moving all of them one at a time all of the application will
eventually end up working under mod_perl.
How can he do that ?
He thought of using mod_proxy or mod_rewrite.
The scripts are badly written and have been developed for three years
so far by various perl programmers.
I'd use mod_rewrite or, even better, use the power of the
PerlTransHandler.. Activate the following handler by adding
PerlTransHandler Moo::my_trans_handler
to your httpd.conf. In your example it will check for
/usr/local/apache/cgi-bin/some_scr.pl_mod_perl_me
If that file exists we rewrite the URL to use the /mod-perl prefix
internally.
sub Moo::my_trans_handler {
my $r = shift;
my $uri = $r-uri;
return DECLINED unless ($uri =~ s,^/cgi-bin/,,);
if (-f /usr/local/apache/cgi-bin/${uri}_mod_perl_me) {
$uri = = /mod-perl/$uri
$r-uri(/mod-perl/$uri);
}
return DECLINED;
}
--
Paul Lindner[EMAIL PROTECTED] | | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org
Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: mod_perl vs. C for high performance Apache modules
On Mon, Dec 17, 2001 at 10:32:58AM -0600, Matthew Kennedy wrote: On Fri, 2001-12-14 at 14:27, Thomas Moore wrote: I spoke to the technical lead at Yahoo who said mod_perl will not scale as well as c++ when you get to their level of traffic, but for a large Isn't that coming from a company using Python? I see that most of their URLs include a tell-tale .py. Of course, whether that's really Python or not searching join.yahoo.com I notice 12 job descriptions contain the word perl, and only 2 that contain the word python.. FWIW, the only place I notice the .py extension is maps.yahoo.com. -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Comparison of different caching schemes
On Sat, Dec 15, 2001 at 08:57:30PM -0500, Perrin Harkins wrote: One place that Rob and I still haven't found a good solution for profiling is trying to work out whether we should be focussing on optimising our mod_perl code, or our IMAP config, or our MySQL DB, or our SMTP setup, or our daemons' code, or... Assuming that the mod_perl app is the front-end for users and that you're trying to optimize for speed of responses, you should just use DProf to tell you which subroutines are using the most wall clock time. (I think it's dprofpp -t or something. Check the man page.) If the sub that uses IMAP is the slowest, then work on speeding up your IMAP server or the way you access it. CPU utilization may not be all that telling, since database stuff often takes the longest but doesn't burn much CPU. I agree 100%, wall clock time is the best metric. Consider that most apps are not CPU bound, they are I/O or network bound. Wall clock time measures that exactly. Another useful tool is truss/strace. Start up your server single process (-X) and then attach to it with strace. The -c and -r flags to strace are quite handy.. For example here's the cumulative stats for 'ls' % time seconds usecs/call callserrors syscall -- --- --- - - 52.290.004508 751 6 read 19.480.001679 560 3 write 12.930.001115 5620 close 6.010.000518 2323 old_mmap 5.450.000470 2122 2 open 1.220.000105 21 5 munmap 0.930.80 40 2 getdents64 0.710.61 321 fstat64 0.290.25 4 7 brk 0.240.21 11 2 mprotect 0.190.16 8 2 ioctl 0.120.10 10 1 uname 0.090.08 3 3 2 rt_sigaction 0.060.05 5 1 fcntl64 -- --- --- - - 100.000.008621 118 4 total -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
ANNOUNCE: Apache::CacheContent 0.12 available (1st CPAN release)
Since nobody obected to Apache::CacheContent I've uploaded it to CPAN.
The current version, 0.12, has a few small bug fixes, POD updates and
a new ToDo list. (This version does not yet have the filename hash
generator code) The complete README is reproduced below.
You can download the code from CPAN or from the Cookbook site at
http://www.modperlcookbook.org/
Thanks!
NAME
Apache::CacheContent - PerlFixupHandler class that caches dynamic
content
SYNOPSIS
* Make your method handler a subclass of Apache::CacheContent
* allow your web server process to write into portions of your document
root.
* Add a ttl() subroutine (optional)
* Add directives to your httpd.conf that are similar to these:
PerlModule MyHandler
# dynamic url
Location /dynamic
SetHandler perl-script
PerlHandler MyHandler-handler
/Location
# cached URL
Location /cached
SetHandler perl-script
PerlFixupHandler MyHandler-disk_cache
PerlSetVar CacheTTL 120 # in minutes...
/Location
DESCRIPTION
Note: This code is derived from the *Cookbook::CacheContent*
module, available as part of The mod_perl Developer's
Cookbook
The Apache::CacheContent module implements a PerlFixupHandler that helps
you to write handlers that can automatically cache generated web pages
to disk. This is a definite performance win for sites that end up
generating the exact same content for many users.
The module is written to use Apache's built-in file handling routines to
efficiently serve data to clients. This means that your code will not
need to worry about HTTP/1.X, byte ranges, if-modified-since, HEAD
requests, etc. It works by writing files into your DocumentRoot, so be
sure that your web server process can write there.
To use this you MUST use mod_perl method handlers. This means that your
version of mod_perl must support method handlers (the argument
EVERYTHING=1 to the mod_perl build will do this). Next you'll need to
have a content-generating mod_perl handler. If isn't a method handler
modify the *handler* subroutine to read:
sub handler ($$) {
my ($class, $r) = @_;
Next, make your handler a subclass of *Apache::CacheContent* by adding
an ISA entry:
@MyHandler::ISA = qw(Apache::CacheContent);
You may need to modify your handler code to only look at the *uri* of
the request. Remember, the cached content is independent of any query
string or form elements.
After this is done, you can activate your handler. To use your handler
in a fully dyamic way configure it as a PerlHandler in your httpd.conf,
like this:
PerlModule MyHandler
Location /dynamic
SetHandler perl-script
PerlHandler MyHandler-handler
/Location
So requests to *http://localhost/dynamic/foo.html* will call your
handler method directly. This is great for debugging and testing the
module. To activate the caching mechanism configure httpd.conf as
follows:
PerlModule MyHandler
Location /cached
SetHandler perl-script
PerlFixupHandler MyHandler-disk_cache
PerlSetVar CacheTTL 120 # in minutes..
/Location
Now when you access URLs like *http://localhost/cached/foo.html* the
content will be generated and stored in the file
*DocumentRoot*/cached/foo.html. Subsequent request for the same URL will
return the cached content, depending on the *CacheTTL* setting.
For further customization you can write your own *ttl* function that can
dynamically change the caching time based on the current request.
AUTHORS
Paul Lindner [EMAIL PROTECTED]
Geoffrey Young [EMAIL PROTECTED]
Randy Kobes [EMAIL PROTECTED]
COPYRIGHT
Copyright (c) 2001, Paul Lindner, Geoffrey Young, Randy Kobes.
All rights reserved.
This module is free software. It may be used, redistributed and/or
modified under the same terms as Perl itself.
SEE ALSO
The example mod_perl method handler `CacheWeather'.
The mod_perl Developer's Cookbook
HISTORY
This code is derived from the *Cookbook::CacheContent* module, available
as part of The mod_perl Developer's Cookbook.
For more information, visit
http://www.modperlcookbook.org/
--
Paul Lindner [EMAIL PROTECTED]| | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org
Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: [RFC] Apache::CacheContent - Caching PerlFixupHandler
On Tue, Dec 11, 2001 at 01:50:52AM -0800, Ask Bjoern Hansen wrote: On Thu, 6 Dec 2001, Paul Lindner wrote: BTW -- I think where the docs are cached should be configurable. I don't like the idea of the document root writable by the web process. That's the price you pay for this functionality. Because we use Apache's native file serving code we need a url-directory mapping somewhere. uh, why couldn't Apache::CacheContent just set $r-filename(/where/we/put/the/cache/$file) ? Simplicity really. This was an example in our upcoming book so I didn't want to add a filename generator to the code, instead we use Apache's url-file mapping mechanism. Also this code was derived from a 404 error handler that I wrote ages ago :) I assume (since you suggested it) that you can set $r-filename to any file in any directory without adding a Directory config? I'll have to see how this interacts with the built-in access control logic . If you add Bill's suggestion about caching on args, headers and whatnot you would (on some filesystems) need something like that anyway to make a hashed directory tree. Right. A more elaborate Apache::CacheContent would have a filename hash function, and a separate cache directory structure along the lines of Cache::FileCache. I suppose that one could put the whole uri-cachefile mapping into a custom PerlTransHandler and leave Apache::CacheContent as-is.. -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Perl-status shows 1 Mb for File::Find!
On Mon, Dec 10, 2001 at 06:27:07PM -0500, Vsevolod Ilyushchenko wrote: Perrin Harkins wrote: I looked at Memory Usage at my perl-status page and was horrified: the biggest modules are: File::Find 1205208 bytes | 2597 OPs Convert::ASN1::parser1058185 bytes | 3069 OPs However, if I go inside File::Find, I can't figure out what takes up so much space: It could be internal structures holding the state. Are you pre-loading this module? It probably doesn't really use 1MB in each process. Perrin, I do preload the module. How do I find out what it really uses? Can you start your server without File::Find or Convert::ASN1::parser? Assume that you have the following commented directive in your httpd.conf file: #PerlModule File::Find Start your httpd server and look at the memory usage. In my case I checked out /proc/PID/status on my linux box. In this case it shows VmSize: 8036 kB Next, uncomment out the directive line, restart and look at the memory usage... In my case it shows as: VmSize: 8380 kB So, about 300k in this instance.. YMMV -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
[RFC] Apache::CacheContent - Caching PerlFixupHandler
Hi,
I would like to propose a new Apache module before I send it off to
CPAN. The name chosen is Apache::CacheContent.
It's pretty generic code, and is intended to be subclassed. It
handles the gory details of caching a page to disk and serving it up
until it expires.
It's derived from work done on the mod_perl Developer's Cookbook, so
it's already been reviewed by a number of people.
I've attached a README below. To download it go to
http://www.modperlcookbook.org/code.html
NAME
Apache::CacheContent - PerlFixupHandler class that caches dynamic
content
SYNOPSIS
* Make your method handler a subclass of Apache::CacheContent
* allow your web server process to write into portions of your document
root.
* Add a ttl() subroutine (optional)
* Add directives to your httpd.conf that are similar to these:
PerlModule MyHandler
# dynamic url
Location /dynamic
SetHandler perl-script
PerlHandler MyHandler-handler
/Location
# cached URL
Location /cached
SetHandler perl-script
PerlFixupHandler MyHandler-disk_cache
PerlSetVar CacheTTL 120 # in minutes...
/Location
DESCRIPTION
Note: This code is derived from the *Cookbook::CacheContent*
module, available as part of The mod_perl Developer's
Cookbook
The Apache::CacheContent module implements a PerlFixupHandler that helps
you to write handlers that can automatically cache generated web pages
to disk. This is a definite performance win for sites that end up
generating the exact same content for many users.
The module is written to use Apache's built-in file handling routines to
efficiently serve data to clients. This means that your code will not
need to worry about HTTP/1.X, byte ranges, if-modified-since, HEAD
requests, etc. It works by writing files into your DocumentRoot, so be
sure that your web server process can write there.
To use this you MUST use mod_perl method handlers. This means that your
version of mod_perl must support method handlers (the argument
EVERYTHING=1 to the mod_perl build will do this). Next you'll need to
have a content-generating mod_perl handler. If isn't a method handler
modify the *handler* subroutine to read:
sub handler ($$) {
my ($class, $r) = @_;
Next, make your handler a subclass of *Apache::CacheContent* by adding
an ISA entry:
@MyHandler::ISA = qw(Apache::CacheContent);
You may need to modify your handler code to only look at the *uri* of
the request. Remember, the cached content is independent of any query
string or form elements.
After this is done, you can activate your handler. To use your handler
in a fully dyamic way configure it as a PerlHandler in your httpd.conf,
like this:
PerlModule MyHandler
Location /dynamic
SetHandler perl-script
PerlHandler MyHandler-handler
/Location
So requests to *http://localhost/dynamic/foo.html* will call your
handler method directly. This is great for debugging and testing the
module. To activate the caching mechanism configure httpd.conf as
follows:
PerlModule MyHandler
Location /cached
SetHandler perl-script
PerlFixupHandler MyHandler-disk_cache
PerlSetVar CacheTTL 120 # in minutes..
/Location
Now when you access URLs like *http://localhost/cached/foo.html* the
content will be generated and stored in the file
*DocumentRoot*/cached/foo.html. Subsequent request for the same URL will
return the cached content, depending on the *CacheTTL* setting.
For further customization you can write your own *ttl* function that can
dynamically change the caching time based on the current request.
AUTHOR
Paul Lindner [EMAIL PROTECTED], Geoffrey Young, Randy Kobes
SEE ALSO
The example mod_perl method handler the CacheWeather manpage.
The mod_perl Developer's Cookbook
--
Paul Lindner [EMAIL PROTECTED]| | | | | | | | | |
mod_perl Developer's Cookbook http://www.modperlcookbook.org
Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: have a memory leaking
On Thu, Dec 06, 2001 at 04:58:31PM +0300, alexis@kubic wrote: Hello All, I have a problem with configuring Apache from mod_perl. Descriptions of all virtual host i've got from MySQL DB. And in cycle wrote: [snip] And all well (all works!), but when rebooting an apache (apachectl restart) size, occupied by each process, increases (as a rule on 2Mb). Where rake, but? Platform - FreeBSD 4.3-RELEASE Apache/1.3.20 (Unix) mod_perl/1.26 mod_ssl/2.8.4 OpenSSL/0.9.6 PHP/4.0.6 rus/PL30.5 This memory leak on restart is common when Apache is compiled as a DSO. I suggest stopping and starting the server. This command has worked for me in the past. apachectl stop; sleep 1; apachectl start -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: [RFC] Apache::CacheContent - Caching PerlFixupHandler
On Thu, Dec 06, 2001 at 10:47:35AM -0800, Bill Moseley wrote: Ok, hit me over the head. Why wouldn't you want to use a caching proxy? Apache::CacheContent gives you more control over the caching process and keeps the expiration headers from leaking to the browser. Ok, I see. Or maybe you want to dynamically control the TTL? Would you still use it with a front-end lightweight server? Even with caching, a mod_perl server is still used to send the cached file (possibly over 56K modem), right? You definitely want a proxy-cache in front of your mod_perl server. One thing that I like about this module is that you can control the server-side caching of content separate from the client/browser cache. So, on to the RFC. Is the name acceptable for Apache::* I will endeavor to add any functionality that makes it worthy :) For example, I think adding a virtual method that generates the filename might be useful. -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: [RFC] Apache::CacheContent - Caching PerlFixupHandler
On Thu, Dec 06, 2001 at 12:55:25PM -0800, Andrew Ho wrote: Hello, PLThat's the price you pay for this functionality. Because we use PLApache's native file serving code we need a url-directory mapping PLsomewhere. PL PLOf course you don't need to make the entire docroot writable, just the PLdirectory corresponding to your script. Apologies if this is obvious--I haven't downloaded and tried this module yet. But would it not be possible to specify a separate directory altogether and make it serveable (Directory ... ... Allow from all ...)? If so perhaps it'd be easy to add this as a configurable parameter. Yes, you can do this using the regular Apache directives: # mkdir /var/cache/www/mydir # chown apache /var/cache/www/mydir # vi /etc/httpd/conf/httpd.conf Directory /var/cache/www/mydir AllowOverride None Order allow,deny Allow from all /Directory Alias /mydir/ /var/cache/www/mydir/ In general it is a fine idea to not make the DocumentRoot writeable by the web user. In fact, I believe it is a good policy that the web user should be able to write only to a small subset of controlled locations. Yes, I agree totally! I'll add some warning to the docs to make sure that people do not inadvertently misconfigure their servers.. -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: PerlWarn and syslog
On Thu, Dec 06, 2001 at 02:11:28PM -0800, Lance Uyehara wrote: I am using apache+mod_perl and have: ErrorLog syslog PerlWarn On However the warning don't come out. If I change to ErrorLog /var/log/logfile or something similar then the warning start appearing. How do I get the warnings when syslog is used? I've seen various problems with Apache's built in syslog under mod_perl. The solution that I've been using lately is: ErrorLog | logger -p local3.debug If you just print to STDERR you might want to look at Apage::LogSTDERR on CPAN. -- Paul Lindner [EMAIL PROTECTED]| | | | | | | | | | mod_perl Developer's Cookbook http://www.modperlcookbook.org Human Rights Declaration http://www.unhchr.ch/udhr/index.htm
Re: Install mod_perl on Solaris 2.7
On Mon, Jun 18, 2001 at 11:03:10AM +0100, Paul Reynolds wrote: What versoin of mod_perl are you using? I tend to stay away from 1.25. Try installing a version between 1.17 and 1.25, excluding 1.25. The attached script works for our project. Just replace the @x@ values with stuff that you use on your own site.. It assumes that you have the following directory layout: ./perl ./http/apache ./http/mod_perl We use Apache 1.3.20, mod_perl 1.25, and perl 5.6.1, all built with gcc 2.95.3 on solaris 2.6 or 2.8.. First off, some optimization flags: CC=gcc CXX=g++ CFLAGS='-pipe -mcpu=ultrasparc -mtune=ultrasparc -m32 -Wa,-xarch=v8plusa -Os' Then, the perl args for use on Solaris, followed by some make rules to build perl.. PERL_OPTS=-O -Dprefix=@prefix@ \ -Dcc=@CC@ \ -Doptimize=@CFLAGS@ \ -Dlocincpth=@prefix@/include \ -Dloclibpth=@prefix@/lib \ [EMAIL PROTECTED] \ [EMAIL PROTECTED] \ -Ud_bincompat5005 \ -Ubincompat5005 \ -Uusemymalloc \ -Uinstallusrbinperl \ -Dlibperl=libperl.so \ -Duseshrplib=true \ -Dldflags=-L@prefix@/lib\ -Duse64bitint \ -des PERL_CCEOPTS=-Dccflags='-DPERL_EMERGENCY_SBRK -DTWO_POT_OPTIMIZE -DPACK_MALLOC' @prefix@/bin/perl: @srcdir@/perl/perl @srcdir@/perl/Makefile $(MAKE) -C @srcdir@/perl install.perl cd /usr/include; @prefix@/bin/h2ph * sys/*; \ @srcdir@/perl/perl: @srcdir@/perl/Makefile @prefix@/lib/libgdbm.so @$(MAKE) -C @srcdir@/perl -j2 $(DEVARGS) @srcdir@/perl/Makefile: @srcdir@/perl/Configure (cd perl; env CCEOPTS=$(PERL_CCEOPTS) sh Configure $(PERL_OPTS)) And finally the apaci args used to build mod_perl+apache.. HTTPDENV= PERLFLAGS= APACI_ARGS=--enable-module=status --enable-module=proxy --prefix=@prefix@ --includedir=@prefix@/include/apache --disable-module=so --disable-module=asis --disable-module=imap --disable-module=cgi --disable-module=userdir --disable-module=autoindex --disable-module=include --disable-rule=EXPAT --disable-rule=WANTHSREGEX echo ..configuring mod_perl+apache;\ cd @srcdir@/http/mod_perl;\ env CFLAGS=@CFLAGS@ -DDYNAMIC_MODULE_LIMIT=0 -DSINGLE_LISTEN_UNSERIALIZED_ACCEPT $(PERL) $(PERLFLAGS) Makefile.PL $(HTTPDENV)\ USE_APACI=1 APACI_ARGS=$(APACI_ARGS) \ EVERYTHING=1 PERL_STASH_POST_DATA=1 \ DO_HTTPD=1 APACHE_SRC=../apache/src \ PERL_USELARGEFILES=0\ PERL_MARK_WHERE=1 PERL_SECTIONS_SELF_BOOT=1 Hope this helps others using solaris... It seems to work well for us. I can't wait to try gcc 3.0 now that it's been released, this should allow for even greater optimization of the code base... - Original Message - From: Joseph Francois To: [EMAIL PROTECTED] Sent: Monday, June 18, 2001 10:09 AM Subject: Install mod_perl on Solaris 2.7 Hello, I've been trying to install Mod_perl as APACI on solaris 2.7. but after the build i get httpd: Cannot find ELF. I make mod_perl install apache for me. when I install apache without mod_perl, apache works fine. Please help thank you -- Paul Lindner [EMAIL PROTECTED]
Re: Real Widgets and Template Languages
On Thu, May 24, 2001 at 09:59:36AM -0400, Chip Turner wrote: darren chamberlain [EMAIL PROTECTED] writes: The nice thing about closures is they could hide any interface at all behind them; all that is required is that the function that generates the closure follow the very simple convention of return the formvar of the name starting with the first parameter you're called with. There is absolutely no reliance upon the underlying object structure. What you're suggesting is equivalent to assuming the object is derived from some kind of base class that supports the param() method though without actually having to be ISA of that class. That's naughty OO programming :) Just because perl lets you be typeless doesn't mean it's always in the best interest of clean design to do so. I don't find a problem with passing an object that has a certain set of method signatures. This is functionally loosely equivalent to a Java Interface.. Any perl object can implement a particular interface just by implementing the methods.. No base class required.. But I agree, closure are very cool, and allow for an additional layer of abstraction between the objects, without having to create a proxy class.. Closures are excellent in hiding implementation details of simple operations, and I think in this case they fit quite well. The system can even be written to work just fine without the user using closures if they're using CGI.pm, as in my previous example. -- Paul Lindner [EMAIL PROTECTED]
Re: Re: installating mod_perl-1.25/apache_1.3.19/perl 5.005_02/solaris 5.6
On Thu, May 10, 2001 at 07:51:05PM +0100, G.W. Haywood wrote: Hi there, On 10 May 2001, qazi Ahmed wrote: I dont have any idea regarding the clock skew detected error. In this case it just means that 'make' has noticed something odd about the various dates and times in your system. It is very important for several reasons that you keep the computer clock as accurate as you can. There are free utilities such as 'ntpd' to help you to do that. Another source of trouble is compiling on an NFS mounted partition where. If the time or timezone on the server does not agree with the time on the client you will end up with these problems. I had to deal with this all the time when I used a NetApp Filer with an old firmware that didn't support ntp.. -- Paul Lindner [EMAIL PROTECTED]
Re: Exception modules
On Mon, Apr 30, 2001 at 05:47:03PM -0700, brian moseley wrote:
On Mon, 30 Apr 2001, Jeffrey W. Baker wrote:
type of exception. Right now I cannot in fact think of
any program I have written that branches on the type of
exception. Java encourages this with multiple catch
in CP Web Mail, the underlying libraries throw typed
exceptions so that the application layer can display the
correct error notification to the user. for instance, if the
library throws CP::InvalidMailboxNameException, Web Mail can
display 'the mailbox name you suggested contains an illegal
character. it must correspond to the format thus-and-such.
try again.', whereas if the library throws CP::Exception
(the generic exception), Web Mail will handle it as a
service problem and display that godawful WM page.
On a related note, does anyone anywhere still use
Experimental::Exception?
Has anyone compared the performance and features of the various
exception packages? I'd like to move to something that is a bit
better supported than Experimental::Exception, and don't feel like
converting thousands of lines of try {} catch {} to eval {}; if
Thanks.
--
Paul Lindner
[EMAIL PROTECTED]
Cutting down on the DEBUG bloat...
Hi,
As part of my ongoing effort to streamline my mod_perl apps, I've come
to discover the joy of constant subroutines and perl's ability to
inline or eliminate code at compile time. I have a solution that
works, but would be interested in seeing if others had better
syntactic sugar.. Anyway:
We have a module CP::Util, with this begin block:
BEGIN {
$ENV{CP_DEBUG} ||= 0;
if ($ENV{CP_DEBUG} == 1) {
*{CP::Util::DBG} = sub () {1;};
} else {
*{CP::Util::DBG} = sub () {0;};
}
}
@EXPORT_OK = qw(DBG);
Then, in another module I do:
use CP::Util qw(DBG);
DBG debug('whoa there boy');
The end result is, when CP_DEBUG=1, the code is in there. When
CP_DEBUG=0, the code is trimmed out at compile time (because DBG is a
constant subroutine, see perldoc perlsub for more info)
This is a real win compared to our old way of using a subroutine
called debug that did a no-op. Consider:
debug 'whoa there' . $foo . join(keys(%bar));
The args to debug are still computed, passed on the stack, etc..
Now, my question is: Is there some trick I could use to retain the simple syntax:
debug "foo bar";
In any case I hope the above exercise opens up everyone's eyes. Just
goes to show that your debug statements might actually be slowing your
mod_perl application.
Cheers.
--
Paul Lindner
[EMAIL PROTECTED]
Re: Error reporting mod_perl 1.25 + apache 1.3.17
On Mon, Feb 05, 2001 at 06:41:00PM +, G.W. Haywood wrote: Hi there, On Mon, 5 Feb 2001, Matisse Enzer wrote: I compiled perl 5.6 and Apache 1.3.17 using gcc egcs-2.91.66 on a RH Linux 6.1 system. If I compile Apache without modperl it run OK. If i compile it with mod_perl 1.25 I also get the segmentation fault on startup. I looked in ../mod_perl/SUPPORT and didn't see anything obvious about this problem. The SUPPORT document is intended to help you to provide information which will be helpful to those trying to help you... I hope that's clear. :) I'm sure there must be people on this List who have successfully built mod_perl systems using exactly the packages you have mentioned. Anyone care to confirm that? I've seen some strange segementation fault problems with mod_perl 1.25. I have not had the time to document these. Environment is similar to others: mod_perl 1.25, apache 1.3.17, perl 5.00503, solaris 2.6... -- Paul Lindner [EMAIL PROTECTED]
Re: Form Fillin with Apache::ASP
Nice.
I look forward to your next release...
On Fri, Jan 12, 2001 at 12:38:12PM -0800, Joshua Chamas wrote:
"T.J. Mather" wrote:
There is an easy way of doing auto form fillin with Apache::ASP using
HTML::FillInForm - for details see (credit goes to Paul Lindner)
I have integrated HTML::FillInForm functionality into Apache::ASP.
It will be activated with
PerlSetVar FormFill 1
$Response-{FormFill} = 1
This will be in v2.09, please let me know if you would
like an early release of the module. Its use is documented
in "perldoc Apache::ASP" and ./site/eg/formfill.asp
Its very lightweight, and for filling the 700+ byte form
at ./site/eg/formfill.asp, it takes some .0046 seconds
additional time on my Linux 450 PIII out of .032 seconds
total for the request.
--Josh
_
Joshua Chamas Chamas Enterprises Inc.
NodeWorks free web link monitoring Huntington Beach, CA USA
http://www.nodeworks.com1-714-625-4051
--
Paul Lindner
[EMAIL PROTECTED]
Red Hat Inc.
mod_perl related work at Red Hat in Raleigh/Durham NC
Hi there, First off, I want to thank everyone who's applied for redhat.com jobs in the Bay Area. The people on this list are the best! Today, however, I am looking for skilled candidates for positions located in the Raleigh/Durham area in North Carolina. Relocation assistance may be provided for exceptional candidates. Sorry, no telecommuting. This position involves working on Red Hat's new web offering 'Red Hat Network' (http://www.redhat.com/network/) The generic job description follows. Contact me at [EMAIL PROTECTED] for more info about these positions. Regards.. Job Description Job Title: Web Engineers Department: Engineering Reports To: Manager, Web Development Red Hat wants you! Red Hat is looking for some skilled web engineers to design, enhance, and implement applications on the Red Hat web site. You will work on a global team to create a best-of-breed web site and implement web services that support Red Hat's Open Source products and services. The ideal candidate will have the following characteristics: 1. Ability to learn. Candidate must show they can adapt to the rapidly changing technology landscape. 2. Ability to communicate. Candidate must show that they can express ideas with elegance and flair. 3. Mature technical ability. Candidate must understand how the web works from a low to a high level. Candidate must also understand how quality software is designed and constructed. We want you to think as much as you code. Other required skills: Four year degree or equivalent industry experience. Previous experience developing web applications, preferably for a high volume revenue based web site. Understanding and experience with object-oriented design and coding. Experience using Perl with Apache. Understanding of relational database concepts and SQL (prefer Oracle) Experience with HTML and HTML tools. Knowledge of basic Software Engineering concepts: development models, testing, and documentation. Pluses: Knowledge of Red Hat's products and services. Expert Perl programming experience including: Perl web applications under Apache and mod_perl, Apache modules, Perl modules, Perl OOP extensions, Apache::ASP Internet protocols and libraries. Languages: Java, Javascript, Python, PHP, C, C++ Web Technology: XML, XSLT and XML-RPC; Internationalization; Applications Servers (HTML::Mason, Embperl, Apache::ASP, Zope, Zentropa, AxKit, Cocoon etc.); Search systems and concepts. Oracle Applications (ERP, CRM) Experience. Benefits Red Hat has a comprehensive benefits package. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: 2 servers based on .htaccess authentication
If you are using shared repositories for the front-end and heavy server you can modify the filename used for .htaccess in the apache config file. (See the AccessFileName entry) So, you could put the config for the heavy server in .htaccess_heavy and the front-end config in .htaccess. On Wed, Nov 29, 2000 at 12:05:14PM -0500, [EMAIL PROTECTED] wrote: We are finally planning to "do the right thing" and have a light weight and heavy weight server. Our problem is that our (immediate) users set up the protections for each directory with .htaccess files - and they use PerlAuthzHandler and PerlAuthenHandlers - so to decide if a file can be delivered requires modperl. So the solution I have come up with is to proxyPass any request requiring authentication to the modperl server. Any existing solution is welcome! The approach I am trying though is: - write an authentication module (in C) to add to the light weight server. All it does is bunce the request to the heavy server. This is figuring if apache invokes this module authentication is being attemtped. Problem: something is still seeing and complaining about the PerlAuthenHandler stuff. I have pulled (I believe) all the other authentation and authorization modules - why and which apache aspect might be doing this??? A concern: in my module I do a REDIRECT to the heavy weight. Doesn't this go back to the browser? How do I do a proxyPass in C like the rewrite setup does so well?? THanks, Bob Waldstein [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: New Module Idea: MLDBM::Sync
On Wed, Nov 22, 2000 at 10:58:43AM +, Tim Bunce wrote: On Tue, Nov 21, 2000 at 03:00:01PM -0800, Perrin Harkins wrote: On Fri, 17 Nov 2000, Joshua Chamas wrote: I'm working on a new module to be used for mod_perl style caching. I'm calling it MLDBM::Sync because its a subclass of MLDBM that makes sure concurrent access is serialized with flock() and i/o flushing between reads and writes. I looked through the code and couldn't see how you are doing i/o flushing. This is more of an issue with Berkeley DB than SDBM I think, since Berkeley DB will cache things in memory. Can you point to me it? I'm puzzled why people wouldn't just use version 3 of Berkeley DB (via DB_File.pm or BerkeleyDB.pm) which supports multiple readers and writers through a shared memory cache. No open/close/flush required per-write and very very much faster. Is there a reason I'm missing? Might MLDBM::Sync work over an NFS mounted partition? That's one reason I've not used the BerkeleyDB stuff yet.. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Why Does restart/gracefull makes httpd grow ?
On Thu, Oct 19, 2000 at 01:55:50PM -0400, Philippe M. Chiasson wrote:
Hi, I recently upgraded our servers to mod_perl 1.24.1 so I decided to
give DSO mod_perl a try. And it now works perfectly, even with our perl
modules implementing core httpd configuration directives (Wich was broken
under DSO until 24.1)
So, I decided to start playing with restart/graceful too, thinking that DSO might
solve
the problems of cleanly restarting a mod_perl server without loss of service...
Here is a bit of top while restarting my server a few times :
[]
I've found that mod_so combined with Perl's dynamic loading causes this memory
leakage.
I ended up compiling apache without mod_so (i.e. all modules compiled in static, no
DSO) and
I do not see this memory leakage at all.
And everything apparently behaves fine and keeps on working, but my main question is
where is the 12Mb that adds to
each process on restart comes from ? What is hapenning ?
I know these issues have been brought before in the case of statically compiled-in
mod_perl, but doesn't restarting the
server freeing libperl.so and re-loading it freshly ?
Any information would be more than welcome ...
## My version info is :
Redhat 6.2 running on a i386 Linux 2.2.17
Server version: Apache/1.3.14 (Unix)
Server built: Oct 18 2000 14:00:36
perl5 (5.0 patchlevel 5 subversion 3)
mod_perl 1.24.1
/usr/local/apache/bin/httpd -l
Compiled-in modules:
http_core.c
mod_so.c
--
+---+
| Philippe M. Chiasson [EMAIL PROTECTED] |
| SmartWorker http://www.smartworker.org|
| IM : gozerhbe ICQ : gozer/18279998 |
+---+
/* * Hash table gook.. */
-- Linux2.4.0-test2
/usr/src/linux/fs/buffer.c
perl -e '$$=\${gozer};{$_=unpack(P26,pack(L,$$));/^Just Another Perl
Hacker!\n$/print||$$++redo}'
--
Paul Lindner
[EMAIL PROTECTED]
Red Hat Inc.
Re: Compiling apache staticly with mod_perl.
On Tue, Oct 10, 2000 at 02:43:36PM -0400, Geoffrey Young wrote: -Original Message- From: Peter Gebauer [mailto:[EMAIL PROTECTED]] Sent: Tuesday, October 10, 2000 8:20 AM To: [EMAIL PROTECTED] Subject: Compiling apache staticly with mod_perl. [snip] Did anybody compile Apache + mod_perl + other modules or have documentation that is written for this specific purpouse (since the INSTALL file that comes with mod_perl is totally insufficient)? http://perl.apache.org/guide/install.html in general, the guide full of lots of good information for mod_perl users... Also see the following URLs http://people.redhat.com/plindner/apache/apache-heavy-1.3.12-3.i386.rpm http://people.redhat.com/plindner/apache/apache-heavy-1.3.12-3.src.rpm For a statically linked RPM. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Compilation recommendations.
See http://people.redhat.com/plindner/apache/ for a static mod_perl that runs well on redhat. I am putting src and i386 rpms there.. Note that this is incomplete. You'll need to roll your own conf files... This also includes some oracle and php code too. Thus it is blessed 'apache-heavy' I would love to hear feedback on how to improve this distribution. Thanks. On Tue, Sep 26, 2000 at 02:45:10PM -0400, darren chamberlain wrote: Lord Vorp ([EMAIL PROTECTED]) said something to this effect: Is there an easier/cleaner way to do this??? Yes: # cat ~/build_mod_perl perl Makefile.PL APACHE_SRC=../apache-1.3.9/src \ DO_HTTPD=1 \ USE_APACI=1 \ EVERYTHING=1 \ APACI_ARGS='--prefix=/usr \ --with-layout=RedHat --add-module=/usr/src/redhat/SOURCES/mod_bandwidth.c \ --add-module=/usr/src/redhat/SOURCES/mod_put.c --enable-module=all \ --enable-shared=max --disable-rule=WANTHSREGEX --disable-module=auth_dbm \ --with-perl=/usr/bin/perl --enable-suexec --suexec-docroot=/home/httpd/html \ --suexec-caller=nobody --disable-shared=perl' cd mod_perl-#.## make make install cd ../apache-#.#.# make install ^D # cd /usr/local/src # sh ~/build_mod_perl # If you think this is hard, try it without make. (darren) -- Blind faith in anything, even your leaders, will get you killed. -- Bruce Springsteen -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Finding Consultants on adding Perl Modules
On Thu, Sep 21, 2000 at 10:19:55AM -0700, Byron Stephen Lee wrote: Hi: Do you have a list of consultants who have experience in adding Perl Modules to Apache? We have a business need for some modules, such as Storable, and would be willing to contract for them. Is there some mechanism in general for finding Apache consultants? There are other areas we could use some help in, but as you know, many people put Apache on their resume if they have even read your web site! I'd appreciate any help you could give on this. perhaps you could try posting your requirements on sourcexchange? -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Static mod_perl+modules
On Fri, Sep 15, 2000 at 01:50:40PM +0300, Antti Linno wrote: Hallo. As I was having problems with mod_perl as module and mysql+dbi, I was told to install mod_perl statically to apache and php as a module. I looked at install instructions and found static install or module install. But with static install how and when do I install PHP as a module. Any instructions, examples would help. Thanking in advance, We have what we call the apache-heavy src RPM. It's 1.3.12 + php 4.0.2 + mod_perl 1.24 + oracle, all static. If anyone is interested I can put it up for ftp.. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Static mod_perl+modules
On Fri, Sep 15, 2000 at 06:35:00AM -0700, Paul Lindner wrote: On Fri, Sep 15, 2000 at 01:50:40PM +0300, Antti Linno wrote: Hallo. As I was having problems with mod_perl as module and mysql+dbi, I was told to install mod_perl statically to apache and php as a module. I looked at install instructions and found static install or module install. But with static install how and when do I install PHP as a module. Any instructions, examples would help. Thanking in advance, We have what we call the apache-heavy src RPM. It's 1.3.12 + php 4.0.2 + mod_perl 1.24 + oracle, all static. If anyone is interested I can put it up for ftp.. Okay, since there is interest out there, see http://people.redhat.com/plindner/apache-heavy-1.3.12-1.src.rpm Cheers. Then install it; you might want to play around with the spec file, I have a few defines in there to turn on/off some options in PHP etc... I can say that it's been working pretty well for our site. We haven't pushed the PHP end to it's limit though. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: multilanguage site
On Fri, Sep 01, 2000 at 10:44:10PM -0400, Greg Stark wrote:
can someone suggest me the best way to build a multilanguage web site
(english, french, ..).
I'm using Apache + mod_perl + Apache::asp (for applications)
I'm really interested in what other people are doing here. We've just released
our first cut at i18n and it's going fairly well. But so far we haven't dealt
with the big bugaboo, character encoding.
One major problem I anticipate is what to do when individual include files are
not available in the local language. For iso-8859-1 encoded languages that's
not a major hurdle as we can simply use the english text until it's
translated. But for other encodings does it make sense to include english
text?
If we use UTF-8 all the ascii characters would display properly, but do most
browsers support UTF-8 now? Or do people still use BIG5, EUS, etc?
As far as I can tell there's no way in html to indicate to the browser that a
chunk of content is in some other encoding other than what was specified in
the headers or meta tag. There's no span charset=... attribute or anything
like that. This seems to make truly multilingual pages really awkward. You
basically must use an encoding like UTF-8 which can reach the entire unicode
character set or else you cannot mix languages.
It's a mess, but you're just going to have to assume multiple
character sets for the forseeable future. We try to use all utf8 data
sources. XML defaults to this. Oracle can be easily set up this way,
and you can use utf8 in your html sources too. You just have to be
careful, for example in our message catalogs we source translations
into utf8.
Anyway, here's what's in my global.asa to take care of this character
set conversion mess.. Full details available to those that are
interested..
In Script_OnStart we convert submitted data to utf8
...
#set $Apps::Param to form data or querystring.
# decide on character set based on submitted form data element
# 'asp_charset', or based on user's language.
my $charset = $Apps::Param-{'asp_charset'};
$charset = 'x-euc-jp' if (!$charset $Session-{"Lang"} eq 'ja');
$charset ||= 'iso-8859-1';
# Convert japanese to UTF8
... messy Jcode stuff removed..
# convert utf8
; # no-op
# convert iso8859-1 to utf8
... messy Unicode::String code..
$Response-{Charset} = $charset;
In Script_OnFlush we convert the internal utf8 data to the target charset
my $charset = $Response-{Charset};
# do character set conversion..
if ($charset eq 'x-euc-jp') {
... messy Jcode stuff
} elsif ($charset eq 'iso-8859-1') {
... unicode::string stuff here.
}
# here's the tricky part:
# Automatically add hidden charset fields to forms?
$$data =~ s,(form.*/form),formfixer($1),sige;
Here's the formfixer thing, it adds hidden charset values to the form:
sub formfixer {
my $form = shift;
return($form) if ($form =~ /action="?http/);
$form =~ s,/form,input type="hidden" name="asp_charset"
value="$Response-{Charset}"/form,si;
return($form);
}
--
Paul Lindner
[EMAIL PROTECTED]
Red Hat Inc.
Re: XML::XPath in APache::ASP - doesn't work
On Mon, Aug 28, 2000 at 07:11:17AM -0700, Dmitry Beransky wrote: I don't know why its working on the command line and not in your web page. Seems very odd to me. Have you tried setting $XML::XPath::Debug=1 and seeing if that shows anything suspect (expect LOTS of stuff to come out). Also note that XML::XPath doesn't work with Perl 5.6 yet. I'm uploading XML::XPath 0.99 today to fix that. I'm still using good ol' 5.005 :) I just tried your Debug=1 suggestion (BTW, it doesn't appear to be documented in XML::XPath) and the output seems identical for both the ASP and the "offline" versions of the script. I guess I'll have to dive into XPath internals and place a few trace statements of my own... You might try intentionally placing a syntax error in your asp script so you can analyze the parsed output. It's possible the parser is doing something unexpected to your code. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Sticky forms for Apache::ASP
Hi,
We've worked out a solution to get sticky form fields inside Apache::ASP
We use HTML::FillinForm and a custom tag to get the desired behaviour.
Put this is in global.asa:
sub fillin {
my $args = shift;
my $html = shift;
my $fif = new HTML::FillInForm;
my $output = $fif-fill(
scalarref = \$html,
fdat = $Apps::Param,
);
$Response-Write($output);
}
Note $Apps::Param is set to either the querystring or form data.
Replace with $Request-QueryString or $Request-Form if you wish.
Then put something like this in your apache configuration:
XMLSubsMatch fillin
Finally, surround your forms like this:
fillin
form
input name="myfield"
/form
/fillin
And voila, instant filled in forms..
Note that a small variation to this technique allows for ASP3.0 style
evaluation of forms.
Instead use a 'form' function
sub form {
...
}
Then check the args to see if the param 'runat' is set to 'server'.
If so, do the funky stuff, if not, just spit it out...
--
Paul Lindner
[EMAIL PROTECTED]
Red Hat Inc.
Re: Apache::ASP and Application_OnEnd
On Tue, Aug 01, 2000 at 02:23:50PM +0300, Alex Shnitman wrote: Hi, Is the Application_OnEnd called when the web server is shut down? (It doesn't look to me that way, but maybe it's a bug..) If it isn't, how can I schedule code to be called on server shutdown? (I need it in order to delete SysV IPC shared memory that I use via IPC::ShareLite in the Apache::ASP application.) Application_OnEnd is called when the last active session is disposed of. So no, it does not get run on server shutdown. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Apache::ASP+
On Thu, Jul 20, 2000 at 03:10:15PM +0800, Kenneth Lee wrote: Hi all! Any one started to make one? It seems a good idea. Of coz it's not simple to build the whole complex platform (NGWS), but the concept of server-side object and the event driven model is too interesting to me. Actually I think that Apache::ASP is coming right along with it's support of XML and the underlying behaviors. I'm not well versed in Microsoft's Next Generation Windows System (NGWS) but would appreciate hearing more about how it differs from some of the latest Apache::ASP enhancements. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Apache::ASP and HEAD
On Wed, Jul 05, 2000 at 12:51:07PM -0700, Dmitry Beransky wrote: Hi, I remember seen the answer to this some time ago (I may have even asked this myself), but I couldn't find it in the archives. Can anyone remind me why Apache::ASP includes a message body in reply to a HEAD request? Probably because it is just running your script. You need to check the REQUEST_METHOD variable and branch accordingly. Same goes for the If-Modified header. I find the resources at http://www.web-caching.com/ a must read for anyone doing CGI applications. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Coldfusion vs. apache/mod_perl
On Wed, Jul 05, 2000 at 04:30:01PM -0500, [EMAIL PROTECTED] wrote: I just left a company that used either mod_perl or coldfusion for our intranet development. I never did any coldfusion development but I did have to deal with maintaing the coldfusion server and apps. coldfusion crashed several times in the three or four months I was involved with it. We never could determine what the problem was. coldfusion (like Apache/mod_perl) eats memory. Our coldfusion processes usually used a total of 200MB of memory. coldfusion does not play well on unix (at least solaris). Allaire's site recommended changing some kernel parameters to get the best performance out of cold fusion. That was something we weren't willing to do on a box that had much more than CF running on it. To my knowledge, CF does not give you the power to mess with the web servers API like mod_perl does. You may or may not need this ability. IMHO, mod_perl applications easily out-performed our CF apps. One plus for coldfusion, there seems to be more CF developers out there (at least in Austin, TX) but that may be a sign that very few people are using CF. My opinion: stick to mod_perl, it won't let you down. I've been toying with using the Apache::ASP custom tag feature to support cold-fusion like applications. I don't think it will be too hard; reading the spec it appears you need to make a list of named queries and then use cfoutput tags with #fieldname# entries. This is absurdly simple with Joshua's new Apache::ASP. Just define cfoutput as a custom tag, and write a small handler for it. I'll have to look up the other tags they support, but they shouldn't be too hard to implement... Has anyone else out there wrote their own cold-fusion routines? -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Coldfusion vs. apache/mod_perl
On Wed, Jul 05, 2000 at 04:09:06PM -0700, Joshua Chamas wrote:
Paul Lindner wrote:
IMHO, mod_perl applications easily out-performed our CF apps.
One plus for coldfusion, there seems to be more CF developers out there (at
least in Austin, TX) but that may be a sign that very few people are using CF.
My opinion: stick to mod_perl, it won't let you down.
I've been toying with using the Apache::ASP custom tag feature to
support cold-fusion like applications. I don't think it will be too
hard; reading the spec it appears you need to make a list of named
queries and then use cfoutput tags with #fieldname# entries.
This is absurdly simple with Joshua's new Apache::ASP. Just define
cfoutput as a custom tag, and write a small handler for it.
I'll have to look up the other tags they support, but they shouldn't
be too hard to implement...
Has anyone else out there wrote their own cold-fusion routines?
Hey Paul,
I think you will have a problem with cold fusion templating
logic like if/else constructs. For these, I would recommend
having something like a ColdFusionCompat config setting, and we
could rip out some of these are parse time and convert them into the
ASP style constructs.
One idea is to have a separate class of tags that are used in the
parse stage.:
CodeTags (cfif|cfelse|cfend)
sub cfend {
return('}');
}
sub cfelse {
return('} else {');
}
sub cfif {
. # heavy lifting here..
return('if (..) {');
}
I am planning to use this approach for support of XSP logic
for XML/XSLT integration, and can't see how to use the custom
tags for full logic implementations of other environments,
particularly the if/else contructs. Might there be some
way to extend the XMLSubsMatch technology to coordinate
between multiple tags?
I think what we need to is something like a Script_OnParse
that one could use to grab the script data and parse it
before the ASP to perl compiler gets to it. This would
allow for some experimentation out of the code base before
merging in something big like XSP or ColdFusion support.
That would definitely do the trick too. Though instead I'd use
various regular expressions to convert tags into ASP syntax..
--
Paul Lindner
[EMAIL PROTECTED]
Red Hat Inc.
Re: [JOB] mod_perl engineers (all levels) at Red Hat - SF Bay Area
On Thu, Jun 22, 2000 at 05:01:41PM +0100, Matt Sergeant wrote: On Thu, 22 Jun 2000, Paul Lindner wrote: Web Technology: XML, XSLT and XML-RPC; Internationalization; Applications Servers (HTML::Mason, Embperl, Apache::ASP, Zope, Zentropa, Cocoon etc.); Search systems and concepts. Bah! You're missing AxKit from that list ;-) You mean you're not happy with being lumped into 'etc..' :-) I'll make sure my next post has AxKit mentioned. After all it is really quite neat... -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: stripping CRLF on the way out?
Try running HTML::Clean on your template, instead of using CPU for every request to strip output. I've done this with some success on a few projects.. Also, Apache::ASP users can activate HTML::Clean to post-process all HTML output, which can result in 20-40% savings. I read somewhere that 5 bytes is equivalent to 1ms on a 28.8 connection, so these types of optimizations are generally worth the effort. -Original Message- From: Dave DeMaagd [mailto:[EMAIL PROTECTED]] Sent: Thursday, June 22, 2000 11:15 AM To: [EMAIL PROTECTED] Subject: stripping CRLF on the way out? Have an application that generates nicely formatted HTML (from templates, so that they can be easily edited), but since there's a awful lot of extra line breaks (and other things, like comments) that we'd like to strip out (save bandwidth), is there an easy way to do this via mod_perl, something like a PerlOutputHandler??? Something like this would be a far sight easier than having to rewrite all of the scripts to do this themselves... Any advice would help greatly! -- Dave DeMaagd - [EMAIL PROTECTED] - http://www.spinynorm.net I don't have a solution, but I admire your problem. SysAdmin/Programmer - TheImageGroup - ===|:=P -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Apache::ASP on Unix
On Wed, Jun 14, 2000 at 02:36:44PM -0300, Marcelo Souza wrote: Hi, Does anyone is using this module? Many are.. Is it full compatible with IIS for asp pages? No. It does not use visual basic. It uses Perl. Otherwise, all of the same concepts are there: Application, Session, Request and Response objects, etc. And what about security, is there any issue? What issues? -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: DBD::Oracle Apache::DBI
We had some strange connection problems like this before. Our most common error was about the 'hostdef extension not found'.. We found that we could get around this by using fully qualified oracle database connection identifiers, instead of using the entry that appears in tnsnames.ora, for example: dbi:Oracle:web becomes something like this dbi:Oracle:(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=.. ))) It's worked like a champ since then... I'm not sure why it works, probably because I've removed a few layers of indirection.. Either that or some environment variable is getting corrupted.. On Mon, May 22, 2000 at 06:36:54PM -0700, Ian Kallen wrote: I've done everything I can think of to shore up any DB connection flakiness but I'm still plagued by errors such as these: DBD::Oracle::db selectcol_arrayref failed: ORA-12571: TNS:packet writer failure ...this is only a problem under mod_perl, outside of the mod_perl/Apache::DBI environment everything seems fine. Once the db connection is in this state, it's useless until the server gets a restart. My connect strings look good and agree, I put Stas' ping method in the DBD::Oracle::db package, set a low timeout, called Oracle (they don't want to hear about it). Everything is the latest versions of mod_perl/Apache/DBI/DBD::Oracle connecting to an Oracle 8.1.5 db on Solaris. Is Apache::DBI not up to it? (it looks simple enough) Maybe there's a better persistent connection method I should be looking at? -- Salon Internethttp://www.salon.com/ Manager, Software and Systems "Livin' La Vida Unix!" Ian Kallen [EMAIL PROTECTED] / AIM: iankallen / Fax: (415) 354-3326 -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc. San Francisco, USA
Re: Session management moudle suggestions?
On Mon, May 08, 2000 at 11:41:39AM -0700, Stephen Zander wrote: I've avoided session management like the plague until now (intranets let you get away with that sort of thing :)) but rolling out web-based LDAP is forcing session management upon me. Other than Apache::Session what are my choices? How well do any of these play with templating (Embperl, Mason et al)? Apache::ASP has very nice session management capabilities. IMHO The best feature is the Session_OnEnd handler (you can define code that is executed when the Session finishes.) And it's templating is superb. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
Re: Memory usage on reload and graceful -- still broken?
On Fri, Apr 21, 2000 at 11:28:18AM -0700, Joshua Chamas wrote: Doug MacEachern wrote: I have a static Solaris compilation, and have the same problems where the parent seems to grow by 1M each HUP. that's strange, do you have PerlFreshRestart On or some Perl sections? otherwise, kill -HUP with a static modperl is a noop. You got me! I have Perl sections ... but I didn't know it was such a crime. Pretty bizarre behavior if you ask me. We don't have perl sections and it does still occur. I will try with a static version and see if that fixes the problem. -- Paul Lindner [EMAIL PROTECTED] Red Hat Inc.
