[fw-mvc] Rewriting .htaccess Problem with JS and CSS Compression

Hi all,

Thank you in advance for your help. I am trying to use a nice
compression file for compressing CSS and Javascript files
using .htaccess and a combine.php script. My current .htaccess looks
like:

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ – [NC,L]
RewriteRule ^.*$ /index.php [NC,L]
RewriteRule ^css/(.*\.css) /combine.php?type=css&files=$1
RewriteRule ^js/(.*\.js) /combine.php?type=javascript&files=$1

my file structure is:
/index.php
/js/(javascript files)
/css/(css files)
/cache/(caching files)

As you can see, the bottom two lines are the lines of the .htaccess
are different than the recommended Zend Framework .htaccess.

In the non-ZF environment, the following .htaccess is recommended:

RewriteEngine On
RewriteBase /
RewriteRule ^css/(.*\.css) /combine.php?type=css&files=$1
RewriteRule ^javascript/(.*\.js) /combine.php?type=javascript&files=$1

Unfortunately, the .htaccess I am currently using isn't working
right. The files are not being created. Any ideas?

I have copied and pasted the combine.php script below, as it is a
useful resource (more useful if I get it working right :) haha).

Thanks,

Andrew

PS: If you have better methods of compressing CSS and JS files, let me
know.

COMBINE.PHP

<?php

/
************************************************************************
* CSS and Javascript Combinator 0.5
* Copyright 2006 by Niels Leenheer
*
* Permission is hereby granted, free of charge, to any person
obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

$cache = true;
$cachedir = dirname(__FILE__) . '/cache';
$cssdir = dirname(__FILE__) . '/css';
$jsdir = dirname(__FILE__) . '/js';

// Determine the directory and type we should use
switch ($_GET['type']) {
case 'css':
$base = realpath($cssdir);
break;
case 'javascript':
$base = realpath($jsdir);
break;
default:
header ("HTTP/1.0 503 Not Implemented");
exit;
};

$type = $_GET['type'];
$elements = explode(',', $_GET['files']);

// Determine last modification date of the files
$lastmodified = 0;
while (list(,$element) = each($elements)) {
$path = realpath($base . '/' . $element);

if (($type == 'javascript' && substr($path, -3) != '.js') ||
($type == 'css' && substr($path, -4) != '.css')) {
header ("HTTP/1.0 403 Forbidden");
exit;
}

if (substr($path, 0, strlen($base)) != $base || !file_exists($path)) {
header ("HTTP/1.0 404 Not Found");
exit;
}

$lastmodified = max($lastmodified, filemtime($path));
}

// Send Etag hash
$hash = $lastmodified . '-' . md5($_GET['files']);
header ("Etag: \"" . $hash . "\"");

if (isset($_SERVER['HTTP_IF_NONE_MATCH']) &&
stripslashes($_SERVER['HTTP_IF_NONE_MATCH']) == '"' . $hash . '"')
{
// Return visit and no modifications, so do not send anything
header ("HTTP/1.0 304 Not Modified");
header ('Content-Length: 0');
}
else
{
// First time visit or files were modified
if ($cache)
{
// Determine supported compression method
$gzip = strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip');
$deflate = strstr($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate');

// Determine used compression method
$encoding = $gzip ? 'gzip' : ($deflate ? 'deflate' : 'none');

// Check for buggy versions of Internet Explorer
if (!strstr($_SERVER['HTTP_USER_AGENT'], 'Opera') &&
preg_match('/^Mozilla\/4\.0 \(compatible; MSIE ([0-9]\.[0-9])/i',
$_SERVER['HTTP_USER_AGENT'], $matches)) {
$version = floatval($matches[1]);

if ($version < 6)
$encoding = 'none';

if ($version == 6 && !strstr($_SERVER['HTTP_USER_AGENT'], 'EV1'))
$encoding = 'none';
}

// Try the cache first to see if the combined files were already
generated
$cachefile = 'cache-' . $hash . '.' . $type . ($encoding !=
'none' ? '.' . $encoding : '');

if (file_exists($cachedir . '/' . $cachefile)) {
if ($fp = fopen($cachedir . '/' . $cachefile, 'rb')) {

if ($encoding != 'none') {
header ("Content-Encoding: " . $encoding);
}

header ("Content-Type: text/" . $type);
header ("Content-Length: " . filesize($cachedir . '/' .
$cachefile));

fpassthru($fp);
fclose($fp);
exit;
}
}
}

// Get contents of the files
$contents = '';
reset($elements);
while (list(,$element) = each($elements)) {
$path = realpath($base . '/' . $element);
$contents .= "\n\n" . file_get_contents($path);
}

// Send Content-Type
header ("Content-Type: text/" . $type);

if (isset($encoding) && $encoding != 'none')
{
// Send compressed contents
$contents = gzencode($contents, 9, $gzip ? FORCE_GZIP :
FORCE_DEFLATE);
header ("Content-Encoding: " . $encoding);
header ('Content-Length: ' . strlen($contents));
echo $contents;
}
else
{
// Send regular contents
header ('Content-Length: ' . strlen($contents));
echo $contents;
}

// Store cache
if ($cache) {
if ($fp = fopen($cachedir . '/' . $cachefile, 'wb')) {
fwrite($fp, $contents);
fclose($fp);
}
}
}