KTAdminVersionPlugin.php
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<?php
/**
* $Id$
*
* The contents of this file are subject to the KnowledgeTree Public
* License Version 1.1.2 ("License"); You may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.knowledgetree.com/KPL
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
* See the License for the specific language governing rights and
* limitations under the License.
*
* All copies of the Covered Code must include on each user interface screen:
* (i) the "Powered by KnowledgeTree" logo and
* (ii) the KnowledgeTree copyright notice
* in the same form as they appear in the distribution. See the License for
* requirements.
*
* The Original Code is: KnowledgeTree Open Source
*
* The Initial Developer of the Original Code is The Jam Warehouse Software
* (Pty) Ltd, trading as KnowledgeTree.
* Portions created by The Jam Warehouse Software (Pty) Ltd are Copyright
* (C) 2007 The Jam Warehouse Software (Pty) Ltd;
* All Rights Reserved.
* Contributor( s): ______________________________________
*
*/
require_once(KT_LIB_DIR . '/plugins/plugin.inc.php');
require_once(KT_LIB_DIR . '/plugins/pluginregistry.inc.php');
require_once(KT_LIB_DIR . '/dashboard/dashlet.inc.php');
define('KT_VERSION_URL', 'http://www.knowledgetree.com/kt_versions');
class AdminVersionDashlet extends KTBaseDashlet {
var $oUser;
var $sClass = 'ktError';
function AdminVersionDashlet() {
$this->sTitle = _kt('New Version Available');
}
function is_active($oUser) {
$this->oUser = $oUser;
return Permission::userIsSystemAdministrator($oUser);
}
function render() {
global $default;
$oPlugin =& $this->oPlugin;
$oTemplating =& KTTemplating::getSingleton();
$oTemplate = $oTemplating->loadTemplate('ktstandard/adminversion/dashlet');
$aVersions = KTUtil::getKTVersions();
$sVersions = '{';
foreach($aVersions as $k=>$v) {
$sVersions .= "'$k' : '$v',";
}
$sVersions = substr($sVersions, 0, -1) . '}';
$sUrl = $oPlugin->getPagePath('versions');
$aTemplateData = array('context' => $this,
'kt_versions' => $sVersions,
'kt_versions_url' => $sUrl,
);
return $oTemplate->render($aTemplateData);
}
}
class AdminVersionPlugin extends KTPlugin {
var $sNamespace = "ktstandard.adminversion.plugin";
var $autoRegister = true;
function AdminVersionPlugin($sFilename = null) {
$res = parent::KTPlugin($sFilename);
$this->sFriendlyName = _kt('Admin Version Plugin');
return $res;
}
function setup() {
if (function_exists('curl_init') || (!OS_WINDOWS)) {
$this->registerDashlet('AdminVersionDashlet', 'ktstandard.adminversion.dashlet', 'KTAdminVersionPlugin.php');
$this->registerPage('versions', 'AdminVersionPage');
}
}
}
class AdminVersionPage extends KTStandardDispatcher {
function _checkCache() {
global $default;
$iLastCheck = KTUtil::getSystemSetting('ktadminversion_lastcheck');
if (empty($iLastCheck)) {
return;
}
$sLastValue = KTUtil::getSystemSetting('ktadminversion_lastvalue');
if (empty($sLastValue)) {
$now = time();
$diff = $now - $iLastCheck;
if ($diff > (60 * 5)) {
return;
}
}
$now = time();
$diff = $now - $iLastCheck;
if ($diff > (60 * 60 * 6)) {
return;
}
return $sLastValue;
}
function do_main() {
session_write_close();
$sCache = $this->_checkCache();
if (!is_null($sCache)) {
return $sCache;
}
$sUrl = KT_VERSION_URL;
$aVersions = KTUtil::getKTVersions();
foreach ($aVersions as $k => $v) {
$sUrl .= '?' . sprintf("%s=%s", $k, $v);
}
$sIdentifier = KTUtil::getSystemIdentifier();
$sUrl .= '&' . sprintf("system_identifier=%s", $sIdentifier);
if (!function_exists('curl_init')) {
if (OS_WINDOWS) {
return "";
}
$stuff = @file_get_contents($sUrl);
if ($stuff === false) {
$stuff = "";
}
} else {
$ch = @curl_init($sUrl);
if (!$ch) {
return "";
}
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
$stuff = curl_exec($ch);
curl_close($ch);
if (!$stuff) {
$stuff = "";
}
}
KTUtil::setSystemSetting('ktadminversion_lastcheck', time());
KTUtil::setSystemSetting('ktadminversion_lastvalue', (string)$stuff);
return $stuff;
}
function handleOutput($sOutput) {
print $sOutput;
}
}
$oPluginRegistry =& KTPluginRegistry::getSingleton();
$oPluginRegistry->registerPlugin('AdminVersionPlugin', 'ktstandard.adminversion.plugin', __FILE__);
?>