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
