function test_HTTP_Encoder()
{
global $thisDir;
HTTP_Encoder::$encodeToIe6 = true;
$methodTests = array(array('ua' => 'Any browser', 'ae' => 'compress, x-gzip', 'exp' => array('gzip', 'x-gzip'), 'desc' => 'recognize "x-gzip" as gzip'), array('ua' => 'Any browser', 'ae' => 'compress, x-gzip;q=0.5', 'exp' => array('gzip', 'x-gzip'), 'desc' => 'gzip w/ non-zero q'), array('ua' => 'Any browser', 'ae' => 'compress, x-gzip;q=0', 'exp' => array('compress', 'compress'), 'desc' => 'gzip w/ zero q'), array('ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)', 'ae' => 'gzip, deflate', 'exp' => array('', ''), 'desc' => 'IE6 w/o "enhanced security"'), array('ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)', 'ae' => 'gzip, deflate', 'exp' => array('deflate', 'deflate'), 'desc' => 'IE6 w/ "enhanced security"'), array('ua' => 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.01)', 'ae' => 'gzip, deflate', 'exp' => array('', ''), 'desc' => 'IE5.5'), array('ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; en) Opera 9.25', 'ae' => 'gzip,deflate', 'exp' => array('deflate', 'deflate'), 'desc' => 'Opera identifying as IE6'));
foreach ($methodTests as $test) {
$_SERVER['HTTP_USER_AGENT'] = $test['ua'];
$_SERVER['HTTP_ACCEPT_ENCODING'] = $test['ae'];
$exp = $test['exp'];
$ret = HTTP_Encoder::getAcceptedEncoding();
$passed = assertTrue($exp == $ret, 'HTTP_Encoder : ' . $test['desc']);
if (__FILE__ === realpath($_SERVER['SCRIPT_FILENAME'])) {
echo "\n--- AE | UA = {$test['ae']} | {$test['ua']}\n";
echo "Expected = " . preg_replace('/\\s+/', ' ', var_export($exp, 1)) . "\n";
echo "Returned = " . preg_replace('/\\s+/', ' ', var_export($ret, 1)) . "\n\n";
}
}
HTTP_Encoder::$encodeToIe6 = false;
$methodTests = array(array('ua' => 'Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)', 'ae' => 'gzip, deflate', 'exp' => array('', ''), 'desc' => 'IE6 w/ "enhanced security"'));
foreach ($methodTests as $test) {
$_SERVER['HTTP_USER_AGENT'] = $test['ua'];
$_SERVER['HTTP_ACCEPT_ENCODING'] = $test['ae'];
$exp = $test['exp'];
$ret = HTTP_Encoder::getAcceptedEncoding();
$passed = assertTrue($exp == $ret, 'HTTP_Encoder : ' . $test['desc']);
if (__FILE__ === realpath($_SERVER['SCRIPT_FILENAME'])) {
echo "\n--- AE | UA = {$test['ae']} | {$test['ua']}\n";
echo "Expected = " . preg_replace('/\\s+/', ' ', var_export($exp, 1)) . "\n";
echo "Returned = " . preg_replace('/\\s+/', ' ', var_export($ret, 1)) . "\n\n";
}
}
if (!function_exists('gzdeflate')) {
echo "!WARN: HTTP_Encoder : Zlib support is not present in PHP. Encoding cannot be performed/tested.\n";
return;
}
// test compression of varied content (HTML,JS, & CSS)
$variedContent = file_get_contents($thisDir . '/_test_files/html/before.html') . file_get_contents($thisDir . '/_test_files/css/subsilver.css') . file_get_contents($thisDir . '/_test_files/js/jquery-1.2.3.js');
$variedLength = strlen($variedContent);
$encodingTests = array(array('method' => 'deflate', 'inv' => 'gzinflate', 'exp' => 32157), array('method' => 'gzip', 'inv' => '_gzdecode', 'exp' => 32175), array('method' => 'compress', 'inv' => 'gzuncompress', 'exp' => 32211));
foreach ($encodingTests as $test) {
$e = new HTTP_Encoder(array('content' => $variedContent, 'method' => $test['method']));
$e->encode(9);
$ret = strlen($e->getContent());
// test uncompression
$roundTrip = @call_user_func($test['inv'], $e->getContent());
$desc = "HTTP_Encoder : {$test['method']} : uncompress possible";
$passed = assertTrue($variedContent == $roundTrip, $desc);
// test expected compressed size
$desc = "HTTP_Encoder : {$test['method']} : compressed to " . sprintf('%4.2f%% of original', $ret / $variedLength * 100);
$passed = assertTrue(abs($ret - $test['exp']) < 100, $desc);
if (__FILE__ === realpath($_SERVER['SCRIPT_FILENAME'])) {
echo "\n--- {$test['method']}: expected bytes: ", "{$test['exp']}. Returned: {$ret} ", "(off by " . abs($ret - $test['exp']) . " bytes)\n\n";
}
}
}
/**
* Runs minify
*/
function process()
{
require_once W3TC_LIB_MINIFY_DIR . '/Minify.php';
require_once W3TC_LIB_MINIFY_DIR . '/HTTP/Encoder.php';
HTTP_Encoder::$encodeToIe6 = $this->_config->get_boolean('minify.comprss.ie6');
Minify::$uploaderHoursBehind = $this->_config->get_integer('minify.fixtime');
Minify::setCache($this->_get_cache());
$serve_options = $this->_config->get_array('minify.options');
$serve_options['maxAge'] = $this->_config->get_integer('minify.maxage');
$serve_options['encodeOutput'] = $this->_config->get_boolean('minify.compress');
$serve_options['postprocessor'] = array(&$this, 'postprocessor');
if (stripos(PHP_OS, 'win') === 0) {
Minify::setDocRoot();
}
foreach ($this->_config->get_array('minify.symlinks') as $link => $target) {
$link = str_replace('//', realpath($_SERVER['DOCUMENT_ROOT']), $link);
$link = strtr($link, '/', DIRECTORY_SEPARATOR);
$serve_options['minifierOptions']['text/css']['symlinks'][$link] = realpath($target);
}
if ($this->_config->get_boolean('minify.debug')) {
$serve_options['debug'] = true;
}
if ($this->_config->get('minify.debug')) {
require_once W3TC_LIB_MINIFY_DIR . '/Minify/Logger.php';
Minify_Logger::setLogger($this);
}
if (isset($_GET['f']) || isset($_GET['gg']) && isset($_GET['g']) && isset($_GET['t'])) {
if (isset($_GET['gg']) && isset($_GET['g']) && isset($_GET['t'])) {
$serve_options['minApp']['groups'] = $this->get_groups($_GET['gg'], $_GET['t']);
if ($_GET['t'] == 'js' && (in_array($_GET['g'], array('include', 'include-nb')) && $this->_config->get_boolean('minify.js.combine.header') || in_array($_GET['g'], array('include-footer', 'include-footer-nb')) && $this->_config->get_boolean('minify.js.combine.footer'))) {
$serve_options['minifiers']['application/x-javascript'] = array($this, 'minify_stub');
}
/**
* Setup user-friendly cache ID for disk cache
*/
if ($this->_config->get_string('minify.engine') == 'file') {
$cacheId = sprintf('%s.%s.%s', $_GET['gg'], $_GET['g'], $_GET['t']);
Minify::setCacheId($cacheId);
}
}
@header('Pragma: public');
try {
Minify::serve('MinApp', $serve_options);
} catch (Exception $exception) {
printf('<strong>W3 Total Cache Error:</strong> Minify error: %s', $exception->getMessage());
}
} else {
die('This file cannot be accessed directly');
}
}
<?php
/**
* AJAX checks for zlib.output_compression
*
* @package Minify
*/
$_oc = ini_get('zlib.output_compression');
// allow access only if builder is enabled
require __DIR__ . '/../config.php';
if (!$min_enableBuilder) {
header('Location: /');
exit;
}
if (isset($_GET['hello'])) {
// echo 'World!'
// try to prevent double encoding (may not have an effect)
ini_set('zlib.output_compression', '0');
require $min_libPath . '/HTTP/Encoder.php';
HTTP_Encoder::$encodeToIe6 = true;
// just in case
$he = new HTTP_Encoder(array('content' => 'World!', 'method' => 'deflate'));
$he->encode();
$he->sendAll();
} else {
// echo status "0" or "1"
header('Content-Type: text/plain');
echo (int) $_oc;
}
$_oc = ini_get('zlib.output_compression');
// allow access only if builder is enabled
require dirname(__FILE__) . '/../config.php';
if (! $min_enableBuilder) {
header('Location: /');
exit();
}
if (isset($_GET['hello'])) {
// echo 'World!'
// try to prevent double encoding (may not have an effect)
ini_set('zlib.output_compression', '0');
require $min_libPath . '/HTTP/Encoder.php';
HTTP_Encoder::$encodeToIe6 = true; // just in case
$he = new HTTP_Encoder(array(
'content' => 'World!'
,'method' => 'deflate'
));
$he->encode();
$he->sendAll();
} else {
// echo status "0" or "1"
header('Content-Type: text/plain');
echo (int)$_oc;
}
