<?php
/*
Extension Name: google_adsense_plugin.php
Extension URI: http://www.nexista.org/
Description: Ads Google Adsense Code
Version:
Copyright: Savonix Corporation
Author: Albert Lash
License: LGPL
*/
/* TODO - Get this from the database. */
$adsense_account = Nexista_Config::get('./extensions/google_adsense_account/code');
$adsense_xpath = Nexista_Config::get('./extensions/google_adsense_account/xpath');
if ($adsense_xpath) {
$adsense_account = Nexista_Flow::get($adsense_xpath);
}
if (!($priority = Nexista_Config::get('./extensions/google_adsense_account/priority'))) {
$priority = 10;
}
$google_adsense_code = <<<EOS
<div style="position: absolute; top: 18px; right: 25px;">
<script type="text/javascript"><!--
google_ad_client = "{$adsense_account}";
google_alternate_color = "FFFFFF"
google_ad_width = 234;
google_ad_height = 60;
google_ad_format = "234x60_as";
google_ad_type = "text";
//2007-10-29: Technology
google_ad_channel = "6222844825";
/**
* nexista_cache
*
* Output buffer utilizing PEAR_Cache
*
* @param object $init includes stuff
*
* @return boolean
*/
function Nexista_cache($init)
{
//configuration - move to xml
$timers = true;
//necessary stuff no matter what
$init->process();
$uid = Nexista_Flow::get('//runtime/user_id');
$uri = $_SERVER['REQUEST_URI'];
$cac = NX_PATH_CACHE . 'cache_' . md5($uid) . '_' . md5($uri);
$exp = $init->getInfo('cacheExpiryTime');
//first things first - check for if-modified-since
if ($ims = $_SERVER['HTTP_IF_MODIFIED_SINCE']) {
if (is_file($cac)) {
$ims = strtotime($ims);
$lm = filemtime($cac);
$etag = md5(file_get_contents($cac));
//$ctag = $_SERVER['HTTP_IF_NONE_MATCH'];
if ($lm <= $ims) {
// Hasn't been modified, is it still fresh?
$fresh = $lm + $exp - time();
if ($fresh > 0) {
header("HTTP/1.1 304 Not Modified");
// If its close to expiring, extend life
if ($fresh < $exp / 10) {
touch($cac);
}
exit;
}
// if not fresh, it will be rebuilt
}
}
}
include_once 'Cache/Lite.php';
/* TODO - Add autocleaning */
$options = array('cacheDir' => NX_PATH_CACHE, 'caching' => true, 'automaticCleaningFactor' => 0, 'readControl' => false, 'lifeTime' => $exp);
$cache = new Cache_Lite($options);
$content_type = $init->getInfo('content_type');
$cache_control = $init->getInfo('cache_control');
ob_start();
ob_start();
if ($output = $cache->get($uri, $uid)) {
$cache_type = 'file cache';
$lm = filemtime($cac);
header("Last-Modified: " . gmdate('D, d M Y H:i:s', $lm) . " GMT");
} else {
header("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
$cache_type = "no cache";
$output = $init->run();
if ($timers) {
$server_time = Nexista_Debug::profile();
if ($content_type == 'text/html') {
$output = str_replace('</body>', '', $output);
$output = str_replace('</html>', '', $output);
$output .= "\n\n<!--\nOriginal request required: {$server_time}! \n-->\n\n";
$output .= '</body></html>';
} elseif ($content_type == 'text/css') {
$output .= "\n/* Original request required: {$server_time}! */";
}
}
if (!is_dir(NX_PATH_CACHE)) {
@mkdir(NX_PATH_CACHE, 0700, true);
}
$cache->save($output, $uri, $uid);
header("ETag: " . md5($output));
}
if ($content_type == 'text/html') {
$output = str_replace('</body>', '', $output);
$output = str_replace('</html>', '', $output);
}
echo $output;
if ($timers) {
$server_time = Nexista_Debug::profile();
if ($content_type == 'text/html') {
echo "<!--\n";
echo "Nexista Cache Information:\n";
echo "Output generated by {$cache_type} in {$server_time}.\n";
echo "Output sent with Cache-Control: {$cache_control} headers, which will affect future requests.\n";
if ($lm > 0) {
echo " Last modified: {$lm}. ";
echo "Cache created: " . gmdate('D, d M Y H:i:s', $lm) . " GMT\n";
}
echo "Current time: " . gmdate('D, d M Y H:i:s') . " GMT\n-->\n";
echo "</body></html>";
} elseif ($content_type == "text/css") {
echo "\n/* Output generated by {$cache_type} in {$server_time}. Last modified: {$lm}. */";
} elseif ($content_type == "application/javascript") {
echo "\n// Output generated by {$cache_type} in {$server_time}. Last modified: {$lm}. ";
}
}
ob_end_flush();
header('Content-Length: ' . ob_get_length());
ob_end_flush();
}
/**
* Returns the value of a flow variable
*
* If the value of a variable is CDATA, it will return this. If the
* variable contains children nodes, it will return a recursive array
*
* @param object $node a valid DOMElement reference
* @param string $array_type for single values: associative or numeric array
*
* @return mixed string or array of variable contents
*/
public static function get($node, $array_type = null)
{
//see if a text node with no children
if ($node->childNodes->length == 1 and get_class($node->childNodes->item(0)) == 'DOMText' and !is_null($node->nodeValue)) {
if ($array_type == 'ASSOC') {
$nodeName = $node->nodeName;
$nodeValue = $node->nodeValue;
$result[$nodeName] = $nodeValue;
return $result;
} else {
return $node->nodeValue;
}
} elseif ($node->childNodes->length > 0) {
$result = array();
foreach ($node->childNodes as $kid) {
if ($kid->childNodes->length == 1 and get_class($kid->childNodes->item(0)) == 'DOMText' and !is_null($kid->nodeValue)) {
$result[$kid->nodeName] = $kid->nodeValue;
} else {
$result[$kid->nodeName] = Nexista_Flow::get($kid);
}
}
return $result;
}
return null;
}
