install.script.php

<?php
/**
 * @package   gantry
 * @subpackage core
 * @version   1.10 January 24, 2012
 * @author    RocketTheme http://www.rockettheme.com
 * @copyright Copyright (C) 2007 - 2012 RocketTheme, LLC
 * @license   http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
 *
 * Gantry uses the Joomla Framework (http://www.joomla.org), a GNU/GPLv2 content management system
 *
 */
class PlgSystemInstallerInstallerScript
{
    protected $packages = array();
    protected $sourcedir;
    protected $installerdir;
    protected $manifest;

    protected function setup($parent)
    {
        $this->sourcedir = $parent->getParent()->getPath('source');
        $this->manifest = $parent->getParent()->getManifest();
        $this->installerdir = $this->sourcedir . DS . 'installer';
    }

    public function install($parent)
    {

        $this->cleanBogusError();

        jimport('joomla.filesystem.file');
        jimport('joomla.filesystem.folder');


        $retval = true;
        $buffer = '';
        $install_html_file = dirname(__FILE__) . '/install.html';
        $install_css_file = dirname(__FILE__) . '/install.css';
        $tmp_path = JPATH_ROOT . '/tmp';

        // Drop out Style
        if (file_exists($install_css_file)) {
            $buffer .= JFile::read($install_html_file);
        }

        if (JFolder::exists($tmp_path)) {
            // Copy install.css to tmp dir for inclusion
            JFile::copy($install_css_file, $tmp_path . '/install.css');
        }

        // Opening HTML
        ob_start();
        ?>
    <div id="rokinstall-logo">
        <ul id="rokinstall-status">
            <?php
            $buffer .= ob_get_clean();

            $run_installer = true;
            if (is_file(dirname(__FILE__) . '/requirements.php')) {
                // check to see if requierments are met
                if (($loaderrors = require_once(dirname(__FILE__) . '/requirements.php')) !== true) {

                    $package['name'] = '';
                    $msg = "Requirements check failed.<br />".implode('<br />',$loaderrors);
                    $buffer .= $this->printerror($package, $msg);
                    $run_installer = false;
                }
            }

            // Cycle through cogs and install each

            if ($run_installer) {
                if (count($this->manifest->cogs->children())) {
                    require_once($this->installerdir . DS . 'RokInstaller.php');

                    foreach ($this->manifest->cogs->children() as $cog)
                    {
                        $folder = $this->sourcedir . DS . trim($cog);

                        jimport('joomla.installer.helper');
                        if (is_dir($folder)) {
                            // if its actually a directory then fill it up
                            $package = Array();
                            $package['dir'] = $folder;
                            $package['type'] = JInstallerHelper::detectType($folder);
                            $package['installer'] = new RokInstaller();
                            $package['name'] = (string)$cog->name;
                            $package['state'] = 'Success';
                            $package['description'] = (string)$cog->description;
                            $package['msg'] = '';
                            $package['type'] = ucfirst((string)$cog['type']);

                            $package['installer']->setCogInfo($cog);
                            // add installer to static for possible rollback
                            $this->packages[] = $package;
                            if (!@$package['installer']->install($package['dir'])) {
                                while ($error = JError::getError(true)) {
                                    $package['msg'] .= $error;
                                }
                                $buffer .= $this->printerror($package, $package['msg']);
                                //$this->abort();
                                break;
                            }
                            if ($package['installer']->getInstallType() == 'install') {
                                $buffer .= $this->printInstall($package);
                            }
                            else {
                                $buffer .= $this->printUpdate($package);
                            }
                        }
                        else {
                            $package = Array();
                            $package['dir'] = $folder;
                            $package['name'] = (string)$cog->name;
                            $package['state'] = 'Failed';
                            $package['description'] = (string)$cog->description;
                            $package['msg'] = '';
                            $package['type'] = ucfirst((string)$cog['type']);
                            $buffer .= $this->printerror($package, JText::_('JLIB_INSTALLER_ABORT_NOINSTALLPATH'));
                            //$this->abort();
                            break;
                        }
                    }
                }
                else
                {
                    $parent->getParent()->abort(JText::sprintf('JLIB_INSTALLER_ABORT_PACK_INSTALL_NO_FILES', JText::_('JLIB_INSTALLER_' . strtoupper($this->route))));
                }
            }


            // Closing HTML
            ob_start();
            ?>
        </ul>
    </div>
            <?php
                    $buffer .= ob_get_clean();


        // Return stuff
        echo $buffer;
        return $retval;
    }

    public function uninstall($parent)
    {

    }

    public function update($parent)
    {
        return $this->install($parent);
    }

    public function preflight($type, $parent)
    {
        $this->setup($parent);
        //Load Event Handler
        $event_handler_file = $this->installerdir . '/RokInstallerEvents.php';
        require_once($event_handler_file);
        $dispatcher =& JDispatcher::getInstance();
        new RokInstallerEvents($dispatcher);
    }

    public function postflight($type, $parent)
    {
        $parent->getParent()->abort();
    }

    public function abort($msg = null, $type = null)
    {
        if ($msg) {
            JError::raiseWarning(100, $msg);
        }
        foreach ($this->packages as $package) {
            $package['installer']->abort(null, $type);
        }
    }

    public function printerror($package, $msg)
    {
        ob_start();
        ?>
    <li class="rokinstall-failure"><span class="rokinstall-row"><span
            class="rokinstall-icon"></span><?php echo $package['name'];?> installation failed</span>
            <span class="rokinstall-errormsg">
                <?php echo $msg; ?>
            </span>
    </li>
    <?php
            $out = ob_get_clean();
        return $out;
    }

    public function printInstall($package)
    {
        ob_start();
        ?>
    <li class="rokinstall-success"><span class="rokinstall-row"><span
            class="rokinstall-icon"></span><?php echo $package['name'];?> installation was successful</span></li>
    <?php
            $out = ob_get_clean();
        return $out;
    }

    public function printUpdate($package)
    {
        ob_start();
        ?>
    <li class="rokinstall-update"><span class="rokinstall-row"><span
            class="rokinstall-icon"></span><?php echo $package['name'];?> update was successful</span></li>
    <?php
            $out = ob_get_clean();
        return $out;
    }

    protected function cleanBogusError(){
        $errors = array();
        while(($error = JError::getError(true)) !== false)
        {
            if (!($error->get('code') == 1 && $error->get('level') == 2 && $error->get('message') == JText::_('JLIB_INSTALLER_ERROR_NOTFINDXMLSETUPFILE')))
            {
                $errors[] = $error;
            }
        }
        foreach($errors as $error)
        {
            JError::addToStack($error);
        }

        $app =& JFactory::getApplication();
        $enqueued_messages = $app->get('_messageQueue');
        $other_messages = array();
        if (!empty($enqueued_messages) && is_array($enqueued_messages))
        {
            foreach($enqueued_messages as $enqueued_message)
            {
                if (!($enqueued_message['message'] == JText::_('JLIB_INSTALLER_ERROR_NOTFINDXMLSETUPFILE') && $enqueued_message['type']) == 'error'){
                    $other_messages[] = $enqueued_message;
                }
            }
        }
        $app->set('_messageQueue', $other_messages);
    }
}