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<?php
/**
* @package AkeebaFEF
* @copyright Copyright (c)2017-2019 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU General Public License version 3, or later
*/
defined('_JEXEC') or die();
class file_fefInstallerScript
{
/**
* The minimum PHP version required to install this extension
*
* @var string
*/
protected $minimumPHPVersion = '5.4.0';
/**
* The minimum Joomla! version required to install this extension
*
* @var string
*/
protected $minimumJoomlaVersion = '3.4.0';
/**
* The maximum Joomla! version this extension can be installed on
*
* @var string
*/
protected $maximumJoomlaVersion = '4.0.99';
/**
* The path, relative to JPATH_LIBRARIES, where FOF is expected to be found. If it's not there, the installation
* will abort.
*
* @var string
*/
protected $fofLibrariesPath = 'fof30';
/**
* Constant used to detect whether FOF has been loaded
*
* @var string
*/
protected $fofDefine = 'FOF30_INCLUDED';
/**
* Joomla! pre-flight event. This runs before Joomla! installs or updates the component. This is our last chance to
* tell Joomla! if it should abort the installation.
*
* @param string $type Installation type (install, update, discover_install)
* @param JInstaller $parent Parent object
*
* @return boolean True to let the installation proceed, false to halt the installation
*/
public function preflight($type, $parent)
{
// Check the minimum PHP version
if (!empty($this->minimumPHPVersion))
{
if (defined('PHP_VERSION'))
{
$version = PHP_VERSION;
}
elseif (function_exists('phpversion'))
{
$version = phpversion();
}
else
{
$version = '5.0.0'; // all bets are off!
}
if (!version_compare($version, $this->minimumPHPVersion, 'ge'))
{
$msg = "<p>You need PHP $this->minimumPHPVersion or later to install this package but you are currently using PHP $version</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
return false;
}
}
// Check the minimum Joomla! version
if (!empty($this->minimumJoomlaVersion) && !version_compare(JVERSION, $this->minimumJoomlaVersion, 'ge'))
{
$jVersion = JVERSION;
$msg = "<p>You need Joomla! $this->minimumJoomlaVersion or later to install this package but you only have $jVersion installed.</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
return false;
}
// Check the maximum Joomla! version
if (!empty($this->maximumJoomlaVersion) && !version_compare(JVERSION, $this->maximumJoomlaVersion, 'le'))
{
$jVersion = JVERSION;
$msg = "<p>You need Joomla! $this->maximumJoomlaVersion or earlier to install this package but you have $jVersion installed</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
return false;
}
// Check if we have FOF installed
$fofPath = JPATH_LIBRARIES . '/' . $this->fofLibrariesPath;
$isFOFInstalled = @is_dir($fofPath);
if (!$isFOFInstalled)
{
$msg = "<p>You need to have FOF installed in $fofPath before installing this package.</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
return false;
}
// In case of an update, discovery etc I need to check if I am an update
if (($type == 'update') && !$this->amIAnUpdate($parent))
{
$msg = "<p>You already have a newer version of Akeeba Frontend Framework installed. If you want to downgrade please uninstall Akeeba Frontend Framework and install the older version.</p><p>If you see this message during the installation or update of an Akeeba extension please ignore it <em>and</em> the immediately following “Files Install: Custom install routine failure” message. They are expected but Joomla! won't allow us to prevent them from showing up.</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
return false;
}
// Delete obsolete font files and folders
if ($type == 'update')
{
// Use pathnames relative to your site's root
$removeFiles = [
'files' => [
// Non-WOFF fonts are not shipped as of 1.0.1 since all modern browsers we target use WOFF
'media/fef/fonts/akeeba/Akeeba-Products.eot',
'media/fef/fonts/akeeba/Akeeba-Products.svg',
'media/fef/fonts/akeeba/Akeeba-Products.ttf',
'media/fef/fonts/Ionicon/ionicons.eot',
'media/fef/fonts/Ionicon/ionicons.svg',
'media/fef/fonts/Ionicon/ionicons.ttf',
],
'folders' => [
],
];
// We need this trick to prevent the Akeeba font being removed on case-insensitive Windows and macOS filesystems
$phpOS = strtoupper(PHP_OS);
if (!in_array(substr($phpOS, 0, 3), ['MAC', 'WIN']))
{
// The beta had this folder uppercase, then we moved it to lowercase
$removeFiles['folders'][] = 'media/fef/fonts/Akeeba';
}
// Remove obsolete files and folders
$this->removeFilesAndFolders($removeFiles);
}
return true;
}
/**
* Runs after install, update or discover_update. In other words, it executes after Joomla! has finished installing
* or updating your component. This is the last chance you've got to perform any additional installations, clean-up,
* database updates and similar housekeeping functions.
*
* @param string $type install, update or discover_update
* @param JInstallerAdapterFile $parent Parent object
*
* @throws Exception
*/
public function postflight($type, JInstallerAdapterFile $parent)
{
$this->loadFOF30();
if (!defined($this->fofDefine))
{
return;
}
// Install or update database
$db = JFactory::getDbo();
/** @var JInstaller $grandpa */
$grandpa = $parent->getParent();
$src = $grandpa->getPath('source');
$sqlSource = $src . '/sql';
$dbInstaller = new FOF30\Database\Installer($db, $sqlSource);
$dbInstaller->updateSchema();
$dbInstaller->nukeCache();
// Add self to FOF 3.0 dependency list
$this->addDependency('fof30', 'file_fef');
// Clear the FOF cache
$fakeController = \FOF30\Container\Container::getInstance('com_FOOBAR');
$fakeController->platform->clearCache();
}
/**
* Runs on uninstallation
*
* @param JInstallerAdapterFile $parent The parent object
*
* @throws RuntimeException If the uninstallation is not allowed
*/
public function uninstall($parent)
{
// Check dependencies on FEF
$dependencyCount = count($this->getDependencies('file_fef'));
if ($dependencyCount)
{
$msg = "<p>You have $dependencyCount extension(s) depending on Akeeba Frontend Framework. The package cannot be uninstalled unless these extensions are uninstalled first.</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
throw new RuntimeException($msg, 500);
}
// Remove self from FOF 3.0 dependencies
$this->removeDependency('fof30', 'file_fef');
JLoader::import('joomla.filesystem.folder');
JFolder::delete(JPATH_SITE . '/media/fef');
}
/**
* Removes obsolete files and folders
*
* @param array $removeList The files and directories to remove
*/
protected function removeFilesAndFolders($removeList)
{
// Remove files
if (isset($removeList['files']) && !empty($removeList['files']))
{
foreach ($removeList['files'] as $file)
{
$f = JPATH_ROOT . '/' . $file;
if (!is_file($f))
{
continue;
}
JFile::delete($f);
}
}
// Remove folders
if (isset($removeList['folders']) && !empty($removeList['folders']))
{
foreach ($removeList['folders'] as $folder)
{
$f = JPATH_ROOT . '/' . $folder;
if (!is_dir($f))
{
continue;
}
JFolder::delete($f);
}
}
}
/**
* Is this package an update to the currently installed FEF? If not (we're a downgrade) we will return false
* and prevent the installation from going on.
*
* @param \JInstallerAdapterComponent $parent The parent object
*
* @return bool Am I an update to an existing version>
*/
protected function amIAnUpdate($parent)
{
/** @var JInstaller $grandpa */
$grandpa = $parent->getParent();
$source = $grandpa->getPath('source');
$target = JPATH_ROOT . '/media/fef';
if (!JFolder::exists($source . '/fef'))
{
// WTF? I can't find myself. I can't install anything.
return false;
}
// If FEF is not really installed (someone removed the directory instead of uninstalling?) I have to install it.
if (!JFolder::exists($target))
{
return true;
}
$fefVersion = array();
if (JFile::exists($target . '/version.txt'))
{
$rawData = @file_get_contents($target . '/version.txt');
$rawData = ($rawData === false) ? "0.0.0\n2011-01-01\n" : $rawData;
$info = explode("\n", $rawData);
$fefVersion['installed'] = array(
'version' => trim($info[0]),
'date' => new JDate(trim($info[1]))
);
}
else
{
$fefVersion['installed'] = array(
'version' => '0.0',
'date' => new JDate('2011-01-01')
);
}
$rawData = @file_get_contents($source . '/version.txt');
$rawData = ($rawData === false) ? "0.0.0\n2011-01-01\n" : $rawData;
$info = explode("\n", $rawData);
$fefVersion['package'] = array(
'version' => trim($info[0]),
'date' => new JDate(trim($info[1]))
);
$haveToInstallFEF = $fefVersion['package']['date']->toUNIX() >= $fefVersion['installed']['date']->toUNIX();
return $haveToInstallFEF;
}
/**
* Loads FOF 3.0 if it's not already loaded
*/
protected function loadFOF30()
{
// Load FOF if not already loaded
if (!defined($this->fofDefine))
{
$filePath = JPATH_LIBRARIES . '/' . $this->fofLibrariesPath . '/include.php';
if (!defined($this->fofDefine) && file_exists($filePath))
{
@include_once $filePath;
}
}
}
/**
* Get the dependencies for a package from the #__akeeba_common table
*
* @param string $package The package
*
* @return array The dependencies
*/
protected function getDependencies($package)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select($db->qn('value'))
->from($db->qn('#__akeeba_common'))
->where($db->qn('key') . ' = ' . $db->q($package));
try
{
$dependencies = $db->setQuery($query)->loadResult();
$dependencies = json_decode($dependencies, true);
if (empty($dependencies))
{
$dependencies = array();
}
}
catch (Exception $e)
{
$dependencies = array();
}
return $dependencies;
}
/**
* Sets the dependencies for a package into the #__akeeba_common table
*
* @param string $package The package
* @param array $dependencies The dependencies list
*/
protected function setDependencies($package, array $dependencies)
{
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->delete('#__akeeba_common')
->where($db->qn('key') . ' = ' . $db->q($package));
try
{
$db->setQuery($query)->execute();
}
catch (Exception $e)
{
// Do nothing if the old key wasn't found
}
$object = (object)array(
'key' => $package,
'value' => json_encode($dependencies)
);
try
{
$db->insertObject('#__akeeba_common', $object, 'key');
}
catch (Exception $e)
{
// Do nothing if the old key wasn't found
}
}
/**
* Adds a package dependency to #__akeeba_common
*
* @param string $package The package
* @param string $dependency The dependency to add
*/
protected function addDependency($package, $dependency)
{
$dependencies = $this->getDependencies($package);
if (!in_array($dependency, $dependencies))
{
$dependencies[] = $dependency;
$this->setDependencies($package, $dependencies);
}
}
/**
* Removes a package dependency from #__akeeba_common
*
* @param string $package The package
* @param string $dependency The dependency to remove
*/
protected function removeDependency($package, $dependency)
{
$dependencies = $this->getDependencies($package);
if (in_array($dependency, $dependencies))
{
$index = array_search($dependency, $dependencies);
unset($dependencies[$index]);
$this->setDependencies($package, $dependencies);
}
}
/**
* Do I have a dependency for a package in #__akeeba_common
*
* @param string $package The package
* @param string $dependency The dependency to check for
*
* @return bool
*/
protected function hasDependency($package, $dependency)
{
$dependencies = $this->getDependencies($package);
return in_array($dependency, $dependencies);
}
}