/administrator/components/com_jfusion/models/model.jfusionadmin.php

<?php



/**

* @package JFusion

* @subpackage Models

* @author JFusion development team

* @copyright Copyright (C) 2008 JFusion. All rights reserved.

* @license http://www.gnu.org/copyleft/gpl.html GNU/GPL

*/



// no direct access

defined('_JEXEC' ) or die('Restricted access' );



/**

* Class for general JFusion functions for the backend

* @package JFusion

*/



class JFusionFunctionAdmin{

    /**

* Saves the posted JFusion component variables

* @param string $jname name of the JFusion plugin used

* @param array $post Array of JFusion plugin parameters posted to the JFusion component

* @param boolean $wizard Notes if function was called by wizardresult();*

* @return true|false returns true if succesful and false if an error occurred

*/



    function saveParameters($jname, $post, $wizard = false)

    {

        $db = & JFactory::getDBO();



        if ($wizard) {

            //data submitted by the wizard so merge the data with existing params if they do indeed exist

            $query = "SELECT params FROM #__jfusion WHERE name = " . $db->Quote($jname);

            $db->setQuery($query);

            $existing_serialized = $db->loadResult();

            if (!empty($existing_serialized)) {

                $existing_params = unserialize(base64_decode($existing_serialized));

                if (is_array($existing_params)) {

                    $post = array_merge($existing_params, $post);

                }

            }

        }



        //serialize the $post to allow storage in a SQL field

        $serialized = base64_encode(serialize($post));



        //set the current parameters in the jfusion table

        $query = 'UPDATE #__jfusion SET params = ' . $db->Quote($serialized) .' WHERE name = ' . $db->Quote($jname);

        $db->setQuery($query );



        if (!$db->query()) {

            //there was an error saving the parameters

            JError::raiseWarning(0,$db->stderr());

            $result = false;

            return $result;

        }



        //reset the params instance for this plugin

        JFusionFactory::getParams($jname,true);



        $result = true;

        return $result;

    }



    /**

* Checks to see if the JFusion plugins are installed and enabled

*/

    function checkPlugin()

    {

        $userPlugin = true;

        $authPlugin = true;

        if (!JFusionFunctionAdmin::isPluginInstalled('jfusion','authentication', false)) {

            JError::raiseWarning(0,JText::_('FUSION_MISSING_AUTH'));

            $authPlugin = false;

        }



        if (!JFusionFunctionAdmin::isPluginInstalled('jfusion','user', false)) {

            JError::raiseWarning(0,JText::_('FUSION_MISSING_USER'));

            $userPlugin = false;

        }



        if ($authPlugin && $userPlugin) {

            $jAuth = JFusionFunctionAdmin::isPluginInstalled('jfusion','user',true);

            $jUser = JFusionFunctionAdmin::isPluginInstalled('jfusion','authentication',true);

            if (!$jAuth) {

                JError::raiseNotice(0,JText::_('FUSION_READY_TO_USE_AUTH'));

            }

            if (!$jUser) {

                JError::raiseNotice(0,JText::_('FUSION_READY_TO_USE_USER'));

            }

        }

    }





    /**

* Tests if a plugin is installed with the specified name, where folder is the type (e.g. user)

* @param string $element element name of the plugin

* @param string $folder folder name of the plugin

* @param integer $testPublished Variable to determine if the function should test to see if the plugin is published

* @return true|false returns true if succesful and false if an error occurred

*/

    function isPluginInstalled($element,$folder, $testPublished)

    {

        $db =& JFactory::getDBO();

        $query = 'SELECT published FROM #__plugins WHERE element=' . $db->Quote($element) . ' AND folder=' . $db->Quote($folder);

        $db->setQuery($query);

        $result = $db->loadObject();

        if ($result) {

            if ($testPublished) {

                return($result->published == 1);

            } else {

                $result = true;

                return $result;

            }

        } else {

            $result = false;

            return $result;

        }

    }



    /**

	* Parses phpinfo into an array

	* @return array

	*/

    function phpinfo_array()

    {

        //get the phpinfo and parse it into an array

        ob_start();

        phpinfo();

        $phpinfo = array('phpinfo' => array());

        if (preg_match_all('#(?:<h2>(?:<a name=".*?">)?(.*?)(?:</a>)?</h2>)|(?:<tr(?: class=".*?")?><t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>(?:<t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>(?:<t[hd](?: class=".*?")?>(.*?)\s*</t[hd]>)?)?</tr>)#s', ob_get_clean(), $matches, PREG_SET_ORDER)) {

            foreach ($matches as $match) {

                if (strlen($match[1])) {

                    $phpinfo[$match[1]] = array();

                } else if (isset($match[3])) {

                    $phpinfo[end(array_keys($phpinfo))][$match[2]] = isset($match[4]) ? array($match[3], $match[4]) : $match[3];

                } else {

                    $phpinfo[end(array_keys($phpinfo))][] = $match[2];

                }

            }

        }

        return $phpinfo;

    }



	/**

	* Checks if url is valid using cURL

	* @param $url

	* @return error code if any

	*/

    function checkURL($url)

    {



        $header_codes = array(100 => 'Continue',

        101 => 'Switching Protocols',

        102 => 'Processing',



        200 => 'OK',

        201 => 'Created',

        202 => 'Accepted',

        203 => 'Non-Authoritative Information',

        204 => 'No Content',

        205 => 'Reset Content',

        206 => 'Partial Content',

        207 => 'Multi-Status',

        226 => 'IM Used',



        300 => 'Multiple Choices',

        301 => 'Moved Permanently',

        302 => 'Found',

        303 => 'See Other',

        304 => 'Not Modified',

        305 => 'Use Proxy',

        306 => 'Reserved',

        307 => 'Temporary Redirect',



        400 => 'Bad Request',

        401 => 'Unauthorized',

        402 => 'Payment Required',

        403 => 'Forbidden',

        404 => 'Not Found',

        405 => 'Method Not Allowed',

        406 => 'Not Acceptable',

        407 => 'Proxy Authentication Required',

        408 => 'Request Timeout',

        409 => 'Conflict',

        410 => 'Gone',

        411 => 'Length Required',

        412 => 'Precondition Failed',

        413 => 'Request Entity Too Large',

        414 => 'Request-URI Too Long',

        415 => 'Unsupported Media Type',

        416 => 'Requested Range Not Satisfiable',

        417 => 'Expectation Failed',

        422 => 'Unprocessable Entity',

        423 => 'Locked',

        424 => 'Failed Dependency',

        426 => 'Upgrade Required',



        500 => 'Internal Server Error',

        501 => 'Not Implemented',

        502 => 'Bad Gateway',

        503 => 'Service Unavailable',

        504 => 'Gateway Timeout',

        505 => 'HTTP Version Not Supported',

        506 => 'Variant Also Negotiates',

        507 => 'Insufficient Storage',

        510 => 'Not Extended'

        );



        ob_start();

        if (function_exists('curl_init')) {

            //curl is the preferred function

            $crl = curl_init();

            $timeout = 5;

            curl_setopt($crl, CURLOPT_URL,$url);

            curl_setopt($crl, CURLOPT_RETURNTRANSFER, 1);

            curl_setopt($crl, CURLOPT_CONNECTTIMEOUT, $timeout);

            $FileData = curl_exec($crl);

            $FileInfo = curl_getinfo($crl);

            curl_close($crl);

            if ($FileInfo['http_code'] >= 400) {

                //there was an error

                return $FileInfo['http_code'] . ': ' . $header_codes[$FileInfo['http_code']]. ' error for url ' . $url;

            }

        } else {

            return JText::_('CURL_DISABLED');

        }

        return null;

    }

    /**

* Parses remote xml file

* @param $url

* @return Joomla xml object

*/

    function getFileData($url,$save = 0, $unpack = 0)

    {

        ob_start();

        if (function_exists('curl_init')) {

            //curl is the preferred function

            $crl = curl_init();

            $timeout = 5;

            curl_setopt($crl, CURLOPT_URL,$url);

            curl_setopt($crl, CURLOPT_RETURNTRANSFER, 1);

            curl_setopt($crl, CURLOPT_CONNECTTIMEOUT, $timeout);

            $FileData = curl_exec($crl);

            $FileInfo = curl_getinfo($crl);

            curl_close($crl);

            if ($FileInfo['http_code'] != 200) {

                //there was an error

                JError::raiseWarning(0,$FileInfo['http_code'] . ' error for file:' . $url);

                return;

            }

        } else {

            //see if we can use fopen to get file

            $fopen_check = ini_get('allow_url_fopen') ;

            if (!empty($fopen_check)) {

                $FileData = file_get_contents($url);

            } else {

                JError::raiseWarning(0,JText::_('CURL_DISABLED'));

                return;

            }

        }



        if ($save) {

            jimport('joomla.installer.helper');

            $filename = JInstallerHelper::getFilenameFromURL($url);

            $config =& JFactory::getConfig();

            $target = $config->getValue('config.tmp_path').DS.JInstallerHelper::getFilenameFromURL($url);

            // Write buffer to file

            JFile::write($target, $FileData);

            if ($unpack) {

                $package = JInstallerHelper::unpack($target);

                ob_end_clean();

                return $package;

            } else {

                ob_end_clean();

                return $target;

            }

        } else {

            ob_end_clean();

            return $FileData;

        }

    }



    function getInstallXML($VersionCurrent)

    {

        //custom for development purposes / local use only; note do not commit your URL to SVN!!!

        $developmentURL = '';



        //get the install xml

        $url = (empty($developmentURL)) ? ($VersionCurrent=='SVN') ? 'http://jfusion.googlecode.com/svn/trunk/jfusion_install_'.$VersionCurrent.'.xml' : 'http://www.jfusion.org/jfusion_install_'.$VersionCurrent.'.xml' : $developmentURL;

        $VersionData = JFusionFunctionAdmin::getFileData($url);

        if (empty($VersionData)) {

            //try a mirror

            $url = (empty($developmentURL)) ? 'http://jfusion.googlecode.com/svn/branches/jfusion_install_'.$VersionCurrent.'.xml' : 'http://jfusion.googlecode.com/svn/trunk/jfusion_install_SVN.xml';

            $VersionData = JFusionFunctionAdmin::getFileData($url);

            if (empty($VersionData)) {

                //no data retrieval possible

                return;

            }

        }

        $parser = JFactory::getXMLParser('Simple');

        if ($parser->loadString($VersionData)) {

            if (isset($parser->document )) {

                $VersionParsed = $parser->document;

                unset($parser);

                return $VersionParsed;

            } else {

                unset($parser);

                return;

            }

        }

    }



    function currentVersion($includeRev = false)

    {

        //get the current JFusion version number

        $filename = JPATH_ADMINISTRATOR .DS.'components'.DS.'com_jfusion'.DS.'jfusion.xml';

        if (file_exists($filename) && is_readable($filename)) {

            //get the version number

            $parser = JFactory::getXMLParser('Simple');

            $parser->loadFile($filename);

            $VersionCurrent = $parser->document->version[0]->data();



            if($includeRev) {

            	$RevisionCurrent = $parser->document->revision[0]->data();

            	return array($VersionCurrent, $RevisionCurrent);

            } else {

            	return $VersionCurrent;

            }

        }

    }





    function get_formatted_timediff($then, $now = false)

    {



        $INT_SECOND =  1;

        $INT_MINUTE = 60;

        $INT_HOUR = 3600;

        $INT_DAY = 86400;

        $INT_WEEK = 604800;



        if (!empty($now)) {

            $timediff = (time() - $then);

        } else {

            $timediff = $then;

        }

        $weeks    = (int) intval($timediff / $INT_WEEK);

        $timediff = (int) intval($timediff - ($INT_WEEK * $weeks));

        $days     = (int) intval($timediff / $INT_DAY);

        $timediff = (int) intval($timediff - ($INT_DAY * $days));

        $hours    = (int) intval($timediff / $INT_HOUR);

        $timediff = (int) intval($timediff - ($INT_HOUR * $hours));

        $mins     = (int) intval($timediff / $INT_MINUTE);

        $timediff = (int) intval($timediff - ($INT_MINUTE * $mins));

        $sec      = (int) intval($timediff / $INT_SECOND);

        $timediff = (int) intval($timediff - ($sec * $INT_SECOND));



        $str = '';

        if ($weeks ) {

            $str .= intval($weeks);

            $str .= ($weeks > 1) ? ' weeks' : ' week';

        }



        if ($days ) {

            $str .= ($str) ? ', ' : '';

            $str .= intval($days);

            $str .= ($days > 1) ? ' days' : ' day';

        }



        if ($hours ) {

            $str .= ($str) ? ', ' : '';

            $str .= intval($hours);

            $str .= ($hours > 1) ? ' hours' : ' hour';

        }



        if ($mins ) {

            $str .= ($str) ? ', ' : '';

            $str .= intval($mins);

            $str .= ($mins > 1) ? ' minutes' : ' minute';

        }



        if ($sec ) {

            $str .= ($str) ? ', ' : '';

            $str .= intval($sec);

            $str .= ($sec > 1) ? ' seconds' : ' second';

        }



        if (!$weeks && !$days && !$hours && !$mins && !$sec ) {

            $str .= '0 seconds ';

        }



        return $str;

    }

}