Current File : /home/lightco1/upgrade.lightco.com.au/libraries/fof30/script.fof.php
<?php
/**
* @package FOF
* @copyright 2010-2017 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU GPL version 2 or later
*/
defined('_JEXEC') or die();
// Do not declare the class if it's already defined. We have to put this check otherwise while updating
// multiple components at once will result in a fatal error since the class lib_fof30InstallerScript
// is already declared
if (class_exists('lib_fof30InstallerScript', false))
{
return;
}
class lib_fof30InstallerScript
{
/**
* 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 = '3.3.0';
/**
* The maximum Joomla! version this extension can be installed on
*
* @var string
*/
protected $maximumJoomlaVersion = '4.0.999';
/**
* The name of the subdirectory under JPATH_LIBRARIES where this version of FOF is installed.
*
* @var string
*/
protected $libraryFolder = 'fof30';
/**
* 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;
}
// In case of an update, discovery etc I need to check if I am an update
if (($type != 'install') && !$this->amIAnUpdate($parent))
{
$msg = "<p>You have a newer version of FOF installed. If you want to downgrade please uninstall FOF and install the older version.</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
return false;
}
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 JInstallerAdapterLibrary $parent Parent object
*/
public function postflight($type, JInstallerAdapterLibrary $parent)
{
if ($type == 'update')
{
$this->bugfixFilesNotCopiedOnUpdate($parent);
}
$this->loadFOF30();
if (!defined('FOF30_INCLUDED'))
{
return;
}
// Install or update database
$db = JFactory::getDbo();
/** @var JInstaller $grandpa */
$grandpa = $parent->getParent();
$src = $grandpa->getPath('source');
$sqlSource = $src . '/fof/sql';
// If we have an uppercase db prefix we can expect the database update to fail because we cannot detect reliably
// the existence of database tables. See https://github.com/joomla/joomla-cms/issues/10928#issuecomment-228549658
$prefix = $db->getPrefix();
$canFail = preg_match('/[A-Z]/', $prefix);
try
{
$dbInstaller = new FOF30\Database\Installer($db, $sqlSource);
$dbInstaller->updateSchema();
}
catch (\Exception $e)
{
if (!$canFail)
{
throw $e;
}
}
// Since we're adding common table, I have to nuke the installer cache, otherwise checks on their existence would fail
$dbInstaller->nukeCache();
// Clear the FOF cache
$fakeController = \FOF30\Container\Container::getInstance('com_FOOBAR');
$fakeController->platform->clearCache();
}
/**
* Runs on uninstallation
*
* @param JInstallerAdapterLibrary $parent The parent object
*
* @throws RuntimeException If the uninstallation is not allowed
*/
public function uninstall(JInstallerAdapterLibrary $parent)
{
// Check dependencies on FOF
$dependencyCount = count($this->getDependencies('fof30'));
if ($dependencyCount)
{
$msg = "<p>You have $dependencyCount extension(s) depending on this version of FOF. The package cannot be uninstalled unless these extensions are uninstalled first.</p>";
JLog::add($msg, JLog::WARNING, 'jerror');
throw new RuntimeException($msg, 500);
}
}
/**
* Is this package an update to the currently installed FOF? If not (we're a downgrade) we will return false
* and prevent the installation from going on.
*
* @param JInstallerAdapterLibrary $parent The parent object
*
* @return array The installation status
*/
protected function amIAnUpdate(JInstallerAdapterLibrary $parent)
{
/** @var JInstaller $grandpa */
$grandpa = $parent->getParent();
$source = $grandpa->getPath('source');
$target = JPATH_LIBRARIES . '/fof30';
// If FOF is not really installed (someone removed the directory instead of uninstalling?) I have to install it.
if (!JFolder::exists($target))
{
return true;
}
$fofVersion = array();
if (JFile::exists($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);
$fofVersion['installed'] = array(
'version' => trim($info[0]),
'date' => new JDate(trim($info[1])),
);
}
else
{
$fofVersion['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);
$fofVersion['package'] = array(
'version' => trim($info[0]),
'date' => new JDate(trim($info[1])),
);
$haveToInstallFOF = $fofVersion['package']['date']->toUNIX() >= $fofVersion['installed']['date']->toUNIX();
return $haveToInstallFOF;
}
/**
* Loads FOF 3.0 if it's not already loaded
*/
protected function loadFOF30()
{
// Load FOF if not already loaded
if (!defined('FOF30_INCLUDED'))
{
$filePath = JPATH_LIBRARIES . '/fof30/include.php';
if (!defined('FOF30_INCLUDED') && file_exists($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);
}
/**
* Recursively copy a bunch of files, but only if the source and target file have a different size.
*
* @param string $source Path to copy FROM
* @param string $dest Path to copy TO
*
* @return void
*/
protected function recursiveConditionalCopy($source, $dest)
{
// Make sure source and destination exist
if (!@is_dir($source))
{
return;
}
if (!@is_dir($dest))
{
if (!@mkdir($dest, 0755))
{
JFolder::create($dest, 0755);
}
}
if (!@is_dir($dest))
{
$this->log(__CLASS__ . ": Cannot create folder $dest");
return;
}
// List the contents of the source folder
try
{
$di = new DirectoryIterator($source);
}
catch (Exception $e)
{
return;
}
// Process each entry
foreach ($di as $entry)
{
// Ignore dot dirs (. and ..)
if ($entry->isDot())
{
continue;
}
$sourcePath = $entry->getPathname();
$fileName = $entry->getFilename();
// If it's a directory do a recursive copy
if ($entry->isDir())
{
$this->recursiveConditionalCopy($sourcePath, $dest . DIRECTORY_SEPARATOR . $fileName);
continue;
}
// If it's a file check if it's missing or identical
$mustCopy = false;
$targetPath = $dest . DIRECTORY_SEPARATOR . $fileName;
if (!@is_file($targetPath))
{
$mustCopy = true;
}
else
{
$sourceSize = @filesize($sourcePath);
$targetSize = @filesize($targetPath);
$mustCopy = $sourceSize != $targetSize;
}
if (!$mustCopy)
{
continue;
}
if (!@copy($sourcePath, $targetPath))
{
if (!JFile::copy($sourcePath, $targetPath))
{
$this->log(__CLASS__ . ": Cannot copy $sourcePath to $targetPath");
}
}
}
}
/**
* Try to log a warning / error with Joomla
*
* @param string $message The message to write to the log
* @param bool $error Is this an error? If not, it's a warning. (default: false)
* @param string $category Log category, default jerror
*
* @return void
*/
protected function log($message, $error = false, $category = 'jerror')
{
// Just in case...
if (!class_exists('JLog', true))
{
return;
}
$priority = $error ? JLog::ERROR : JLog::WARNING;
try
{
JLog::add($message, $priority, $category);
}
catch (Exception $e)
{
// Swallow the exception.
}
}
/**
* Fix for Joomla bug: sometimes files are not copied on update.
*
* We have observed that ever since Joomla! 1.5.5, when Joomla! is performing an extension update some files /
* folders are not copied properly. This seems to be a bit random and seems to be more likely to happen the more
* added / modified files and folders you have. We are trying to work around it by retrying the copy operation
* ourselves WITHOUT going through the manifest, based entirely on the conventions we follow.
*
* @param \JInstallerAdapterComponent $parent
*/
protected function bugfixFilesNotCopiedOnUpdate($parent)
{
$source = $parent->getParent()->getPath('source') . '/fof';
$target = JPATH_LIBRARIES . '/' . $this->libraryFolder;
$this->recursiveConditionalCopy($source, $target);
}
}
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