pluginutil.inc.php
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<?php
/**
* $Id$
*
* Copyright (c) 2006 Jam Warehouse http://www.jamwarehouse.com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; using version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* -------------------------------------------------------------------------
*
* You can contact the copyright owner regarding licensing via the contact
* details that can be found on the KnowledgeTree web site:
*
* http://www.ktdms.com/
*/
require_once(KT_LIB_DIR . '/plugins/pluginentity.inc.php');
require_once(KT_LIB_DIR . '/plugins/pluginregistry.inc.php');
class KTPluginResourceRegistry {
var $aResources = array();
function &getSingleton() {
if (!KTUtil::arrayGet($GLOBALS, 'oKTPluginResourceRegistry')) {
$GLOBALS['oKTPluginResourceRegistry'] = new KTPluginResourceRegistry;
}
return $GLOBALS['oKTPluginResourceRegistry'];
}
function registerResource($sPath) {
$this->aResources[$sPath] = true;
}
function isRegistered($sPath) {
if (KTUtil::arrayGet($this->aResources, $sPath)) {
return true;
}
$sPath = dirname($sPath);
if (KTUtil::arrayGet($this->aResources, $sPath)) {
return true;
}
return false;
}
}
class KTPluginUtil {
function loadPlugins () {
$aPlugins = KTPluginEntity::getList();
if (count($aPlugins) === 0) {
KTPluginUtil::registerPlugins();
}
$aPaths = array();
$aPaths[] = KT_DIR . '/plugins/ktcore/KTCorePlugin.php';
$aPaths[] = KT_DIR . '/plugins/ktcore/KTCoreLanguagePlugin.php';
foreach ($aPlugins as $oPlugin) {
if (!is_a($oPlugin, 'KTPluginEntity')) {
print "<pre>";
print "loadPlugins()\n";
var_dump($aPlugins);
exit(0);
}
$sPath = $oPlugin->getPath();
if (!KTUtil::isAbsolutePath($sPath)) {
$sPath = sprintf("%s/%s", KT_DIR, $sPath);
}
$aPaths[] = $sPath;
}
$aPaths = array_unique($aPaths);
foreach ($aPaths as $sPath) {
if (file_exists($sPath)) {
require_once($sPath);
}
}
$oRegistry =& KTPluginRegistry::getSingleton();
$aPlugins =& $oRegistry->getPlugins();
foreach ($aPlugins as $oPlugin) {
if (!isset($aOrder[$oPlugin->iOrder])) {
$aOrder[$oPlugin->iOrder] = array();
}
$aOrder[$oPlugin->iOrder][] = $oPlugin;
}
ksort($aOrder, SORT_NUMERIC);
foreach ($aOrder as $iOrder => $aOrderPlugins) {
foreach ($aOrderPlugins as $oPlugin) {
$oPlugin->load();
}
}
}
function registerPlugins () {
$files = array();
KTPluginUtil::_walk(KT_DIR . '/plugins', $files);
foreach ($files as $sFile) {
$plugin_ending = "Plugin.php";
if (substr($sFile, -strlen($plugin_ending)) === $plugin_ending) {
require_once($sFile);
}
}
$oRegistry =& KTPluginRegistry::getSingleton();
foreach ($oRegistry->getPlugins() as $oPlugin) {
$res = $oPlugin->register();
if (PEAR::isError($res)) {
var_dump($res);
}
}
foreach (KTPluginEntity::getList() as $oPluginEntity) {
$sPath = $oPluginEntity->getPath();
if (!KTUtil::isAbsolutePath($sPath)) {
$sPath = sprintf("%s/%s", KT_DIR, $sPath);
}
if (!file_exists($sPath)) {
$oPluginEntity->setUnavailable(true);
$oPluginEntity->setDisabled(true);
$res = $oPluginEntity->update();
}
}
KTPluginEntity::clearAllCaches();
}
function _walk ($path, &$files) {
if (!is_dir($path)) {
return;
}
$dirh = opendir($path);
while (($entry = readdir($dirh)) !== false) {
if (in_array($entry, array('.', '..'))) {
continue;
}
$newpath = $path . '/' . $entry;
if (is_dir($newpath)) {
KTPluginUtil::_walk($newpath, $files);
}
if (!is_file($newpath)) {
continue;
}
$files[] = $newpath;
}
}
function resourceIsRegistered($path) {
$oRegistry =& KTPluginResourceRegistry::getSingleton();
return $oRegistry->isRegistered($path);
}
function registerResource($path) {
$oRegistry =& KTPluginResourceRegistry::getSingleton();
$oRegistry->registerResource($path);
}
function readResource($sPath) {
global $default;
$php_file = ".php";
if (substr($sPath, -strlen($php_file)) === $php_file) {
require_once($php_file);
} else {
$pi = pathinfo($sPath);
$mime_type = "";
$sExtension = KTUtil::arrayGet($pi, 'extension');
if (!empty($sExtension)) {
$mime_type = DBUtil::getOneResultKey(array("SELECT mimetypes FROM " . $default->mimetypes_table . " WHERE LOWER(filetypes) = ?", $sExtension), "mimetypes");
}
if (empty($mime_type)) {
$mime_type = "application/octet-stream";
}
$sFullPath = KT_DIR . '/plugins' . $sPath;
header("Content-Type: $mime_type");
header("Content-Length: " . filesize($sFullPath));
readfile($sFullPath);
}
}
// utility function to detect if the plugin is loaded and active.
function pluginIsActive($sNamespace) {
$oReg =& KTPluginRegistry::getSingleton();
$plugin = $oReg->getPlugin($sNamespace);
if (is_null($plugin) || PEAR::isError($plugin)) { return false; } // no such plugin
else { // check if its active
$ent = KTPluginEntity::getByNamespace($sNamespace);
if (PEAR::isError($ent)) { return false; }
// we now can ask
return (!$ent->getDisabled());
}
}
}
?>