Current File : /home/lightco1/upgrade.lightco.com.au/libraries/fof30/Utils/InstallScript/BaseInstaller.php
<?php
/**
* @package FOF
* @copyright 2010-2017 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU GPL version 2 or later
*/
namespace FOF30\Utils\InstallScript;
use DirectoryIterator;
use Exception;
use JFactory;
use JFile;
use JFolder;
use JLoader;
use JLog;
defined('_JEXEC') or die;
JLoader::import('joomla.filesystem.folder');
JLoader::import('joomla.filesystem.file');
JLoader::import('joomla.installer.installer');
JLoader::import('joomla.utilities.date');
class BaseInstaller
{
/**
* 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 = '4.0.99';
/**
* Post-installation message definitions for Joomla! 3.2 or later.
*
* This array contains the message definitions for the Post-installation Messages component added in Joomla! 3.2 and
* later versions. Each element is also a hashed array. For the keys used in these message definitions please see
* addPostInstallationMessage
*
* @var array
*/
protected $postInstallationMessages = array();
/**
* 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
* @param array $ignored List of entries to ignore (first level entries are taken into account)
*
* @return void
*/
protected function recursiveConditionalCopy($source, $dest, $ignored = array())
{
// Make sure source and destination exist
if (!@is_dir($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 = $entry->getFilename();
// Do not copy ignored files
if (!empty($ignored) && in_array($fileName, $ignored))
{
continue;
}
// If it's a directory do a recursive copy
if ($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 $e)
{
// Swallow the exception.
}
}
/**
* Check that the server meets the minimum PHP version requirements.
*
* @return bool
*/
protected function checkPHPVersion()
{
if (!empty($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 extension</p>";
$this->log($msg);
return false;
}
}
return true;
}
/**
* Check the minimum and maximum Joomla! versions for this extension
*
* @return bool
*/
protected function checkJoomlaVersion()
{
if (!empty($this->minimumJoomlaVersion) && !version_compare(JVERSION, $this->minimumJoomlaVersion, 'ge'))
{
$msg = "<p>You need Joomla! $this->minimumJoomlaVersion or later to install this extension</p>";
$this->log($msg);
return false;
}
// Check the maximum Joomla! version
if (!empty($this->maximumJoomlaVersion) && !version_compare(JVERSION, $this->maximumJoomlaVersion, 'le'))
{
$msg = "<p>You need Joomla! $this->maximumJoomlaVersion or earlier to install this extension</p>";
$this->log($msg);
return false;
}
return true;
}
/**
* Clear PHP opcode caches
*
* @return void
*/
protected function clearOpcodeCaches()
{
// Always reset the OPcache if it's enabled. Otherwise there's a good chance the server will not know we are
// replacing .php scripts. This is a major concern since PHP 5.5 included and enabled OPcache by default.
if (function_exists('opcache_reset'))
{
opcache_reset();
}
// Also do that for APC cache
elseif (function_exists('apc_clear_cache'))
{
@apc_clear_cache();
}
}
/**
* 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);
}
/**
* Adds or updates a post-installation message (PIM) definition for Joomla! 3.2 or later. You can use this in your
* post-installation script using this code:
*
* The $options array contains the following mandatory keys:
*
* extension_id The numeric ID of the extension this message is for (see the #__extensions table)
*
* type One of message, link or action. Their meaning is:
* message Informative message. The user can dismiss it.
* link The action button links to a URL. The URL is defined in the action parameter.
* action A PHP action takes place when the action button is clicked. You need to specify the
* action_file (RAD path to the PHP file) and action (PHP function name) keys. See
* below for more information.
*
* title_key The JText language key for the title of this PIM
* Example: COM_FOOBAR_POSTINSTALL_MESSAGEONE_TITLE
*
* description_key The JText language key for the main body (description) of this PIM
* Example: COM_FOOBAR_POSTINSTALL_MESSAGEONE_DESCRIPTION
*
* action_key The JText language key for the action button. Ignored and not required when type=message
* Example: COM_FOOBAR_POSTINSTALL_MESSAGEONE_ACTION
*
* language_extension The extension name which holds the language keys used above. For example, com_foobar,
* mod_something, plg_system_whatever, tpl_mytemplate
*
* language_client_id Should we load the front-end (0) or back-end (1) language keys?
*
* version_introduced Which was the version of your extension where this message appeared for the first time?
* Example: 3.2.1
*
* enabled Must be 1 for this message to be enabled. If you omit it, it defaults to 1.
*
* condition_file The RAD path to a PHP file containing a PHP function which determines whether this message
* should be shown to the user. @see Template::parsePath() for RAD path format. Joomla!
* will include this file before calling the condition_method.
* Example: admin://components/com_foobar/helpers/postinstall.php
*
* condition_method The name of a PHP function which will be used to determine whether to show this message to
* the user. This must be a simple PHP user function (not a class method, static method etc)
* which returns true to show the message and false to hide it. This function is defined in the
* condition_file.
* Example: com_foobar_postinstall_messageone_condition
*
* When type=message no additional keys are required.
*
* When type=link the following additional keys are required:
*
* action The URL which will open when the user clicks on the PIM's action button
* Example: index.php?option=com_foobar&view=tools&task=installSampleData
*
* Then type=action the following additional keys are required:
*
* action_file The RAD path to a PHP file containing a PHP function which performs the action of this PIM.
*
* @see Template::parsePath() for RAD path format. Joomla! will include this file
* before calling the function defined in the action key below.
* Example: admin://components/com_foobar/helpers/postinstall.php
*
* action The name of a PHP function which will be used to run the action of this PIM. This must be a
* simple PHP user function (not a class method, static method etc) which returns no result.
* Example: com_foobar_postinstall_messageone_action
*
* @param array $options See description
*
* @return void
*
* @throws Exception
*/
protected function addPostInstallationMessage(array $options)
{
// Make sure there are options set
if (!is_array($options))
{
throw new Exception('Post-installation message definitions must be of type array', 500);
}
// Initialise array keys
$defaultOptions = array(
'extension_id' => '',
'type' => '',
'title_key' => '',
'description_key' => '',
'action_key' => '',
'language_extension' => '',
'language_client_id' => '',
'action_file' => '',
'action' => '',
'condition_file' => '',
'condition_method' => '',
'version_introduced' => '',
'enabled' => '1',
);
$options = array_merge($defaultOptions, $options);
// Array normalisation. Removes array keys not belonging to a definition.
$defaultKeys = array_keys($defaultOptions);
$allKeys = array_keys($options);
$extraKeys = array_diff($allKeys, $defaultKeys);
if (!empty($extraKeys))
{
foreach ($extraKeys as $key)
{
unset($options[$key]);
}
}
// Normalisation of integer values
$options['extension_id'] = (int) $options['extension_id'];
$options['language_client_id'] = (int) $options['language_client_id'];
$options['enabled'] = (int) $options['enabled'];
// Normalisation of 0/1 values
foreach (array('language_client_id', 'enabled') as $key)
{
$options[$key] = $options[$key] ? 1 : 0;
}
// Make sure there's an extension_id
if (!(int) $options['extension_id'])
{
throw new Exception('Post-installation message definitions need an extension_id', 500);
}
// Make sure there's a valid type
if (!in_array($options['type'], array('message', 'link', 'action')))
{
throw new Exception('Post-installation message definitions need to declare a type of message, link or action', 500);
}
// Make sure there's a title key
if (empty($options['title_key']))
{
throw new Exception('Post-installation message definitions need a title key', 500);
}
// Make sure there's a description key
if (empty($options['description_key']))
{
throw new Exception('Post-installation message definitions need a description key', 500);
}
// If the type is anything other than message you need an action key
if (($options['type'] != 'message') && empty($options['action_key']))
{
throw new Exception('Post-installation message definitions need an action key when they are of type "' . $options['type'] . '"', 500);
}
// You must specify the language extension
if (empty($options['language_extension']))
{
throw new Exception('Post-installation message definitions need to specify which extension contains their language keys', 500);
}
// The action file and method are only required for the "action" type
if ($options['type'] == 'action')
{
if (empty($options['action_file']))
{
throw new Exception('Post-installation message definitions need an action file when they are of type "action"', 500);
}
$file_path = \FOFTemplateUtils::parsePath($options['action_file'], true);
if (!@is_file($file_path))
{
throw new Exception('The action file ' . $options['action_file'] . ' of your post-installation message definition does not exist', 500);
}
if (empty($options['action']))
{
throw new Exception('Post-installation message definitions need an action (function name) when they are of type "action"', 500);
}
}
if ($options['type'] == 'link')
{
if (empty($options['link']))
{
throw new Exception('Post-installation message definitions need an action (URL) when they are of type "link"', 500);
}
}
// The condition file and method are only required when the type is not "message"
if ($options['type'] != 'message')
{
if (empty($options['condition_file']))
{
throw new Exception('Post-installation message definitions need a condition file when they are of type "' . $options['type'] . '"', 500);
}
$file_path = \FOFTemplateUtils::parsePath($options['condition_file'], true);
if (!@is_file($file_path))
{
throw new Exception('The condition file ' . $options['condition_file'] . ' of your post-installation message definition does not exist', 500);
}
if (empty($options['condition_method']))
{
throw new Exception('Post-installation message definitions need a condition method (function name) when they are of type "' . $options['type'] . '"', 500);
}
}
// Check if the definition exists
$tableName = '#__postinstall_messages';
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select('*')
->from($db->qn($tableName))
->where($db->qn('extension_id') . ' = ' . $db->q($options['extension_id']))
->where($db->qn('type') . ' = ' . $db->q($options['type']))
->where($db->qn('title_key') . ' = ' . $db->q($options['title_key']));
$existingRow = $db->setQuery($query)->loadAssoc();
// Is the existing definition the same as the one we're trying to save (ignore the enabled flag)?
if (!empty($existingRow))
{
$same = true;
foreach ($options as $k => $v)
{
if ($k == 'enabled')
{
continue;
}
if ($existingRow[$k] != $v)
{
$same = false;
break;
}
}
// Trying to add the same row as the existing one; quit
if ($same)
{
return;
}
// Otherwise it's not the same row. Remove the old row before insert a new one.
$query = $db->getQuery(true)
->delete($db->qn($tableName))
->where($db->q('extension_id') . ' = ' . $db->q($options['extension_id']))
->where($db->q('type') . ' = ' . $db->q($options['type']))
->where($db->q('title_key') . ' = ' . $db->q($options['title_key']));
$db->setQuery($query)->execute();
}
// Insert the new row
$options = (object) $options;
$db->insertObject($tableName, $options);
}
/**
* Applies the post-installation messages for Joomla! 3.2 or later
*
* @return void
*/
protected function _applyPostInstallationMessages()
{
// Make sure it's Joomla! 3.2.0 or later
if (!version_compare(JVERSION, '3.2.0', 'ge'))
{
return;
}
// Make sure there are post-installation messages
if (empty($this->postInstallationMessages))
{
return;
}
// Get the extension ID for our component
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('extension_id')
->from('#__extensions')
->where($db->qn('type') . ' = ' . $db->q('component'))
->where($db->qn('element') . ' = ' . $db->q($this->componentName));
$db->setQuery($query);
try
{
$ids = $db->loadColumn();
}
catch (Exception $exc)
{
return;
}
if (empty($ids))
{
return;
}
$extension_id = array_shift($ids);
foreach ($this->postInstallationMessages as $message)
{
$message['extension_id'] = $extension_id;
$this->addPostInstallationMessage($message);
}
}
/**
* Uninstalls the post-installation messages for Joomla! 3.2 or later
*
* @return void
*/
protected function uninstallPostInstallationMessages()
{
// Make sure it's Joomla! 3.2.0 or later
if (!version_compare(JVERSION, '3.2.0', 'ge'))
{
return;
}
// Make sure there are post-installation messages
if (empty($this->postInstallationMessages))
{
return;
}
// Get the extension ID for our component
$db = JFactory::getDbo();
$query = $db->getQuery(true);
$query->select('extension_id')
->from('#__extensions')
->where($db->qn('type') . ' = ' . $db->q('component'))
->where($db->qn('element') . ' = ' . $db->q($this->componentName));
$db->setQuery($query);
try
{
$ids = $db->loadColumn();
}
catch (Exception $exc)
{
return;
}
if (empty($ids))
{
return;
}
$extension_id = array_shift($ids);
$query = $db->getQuery(true)
->delete($db->qn('#__postinstall_messages'))
->where($db->qn('extension_id') . ' = ' . $db->q($extension_id));
try
{
$db->setQuery($query)->execute();
}
catch (Exception $e)
{
return;
}
}
}
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