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<?php
/**
* @package FOF
* @copyright Copyright (c)2010-2020 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU General Public License version 2, or later
*/
namespace FOF30\Platform;
defined('_JEXEC') || die;
use Exception;
use FOF30\Container\Container;
use FOF30\Date\Date;
use FOF30\Input\Input;
use JDatabaseDriver;
use Joomla\CMS\Document\Document;
use Joomla\CMS\Language\Language;
use Joomla\CMS\User\User;
use Joomla\Registry\Registry;
use JsonSerializable;
/**
* Part of the F0F Platform Abstraction Layer. It implements everything that
* depends on the platform F0F is running under, e.g. the Joomla! CMS front-end,
* the Joomla! CMS back-end, a CLI Joomla! Platform app, a bespoke Joomla!
* Platform / Framework web application and so on.
*/
interface PlatformInterface
{
/**
* Public constructor.
*
* @param Container $c The component container
*/
public function __construct(Container $c);
/**
* Checks if the current script is run inside a valid CMS execution
*
* @return bool
*/
public function checkExecution();
/**
* Raises an error, using the logic requested by the CMS (PHP Exception or dedicated class)
*
* @param integer $code
* @param string $message
*
* @return mixed
*/
public function raiseError($code, $message);
/**
* Returns the version number string of the CMS/application we're running in
*
* @return string
*
* @since 2.1.2
*/
public function getPlatformVersion();
/**
* Returns absolute path to directories used by the containing CMS/application.
*
* The return is a table with the following key:
* * root Path to the site root
* * public Path to the public area of the site
* * admin Path to the administrative area of the site
* * tmp Path to the temp directory
* * log Path to the log directory
*
* @return array A hash array with keys root, public, admin, tmp and log.
*/
public function getPlatformBaseDirs();
/**
* Returns the base (root) directories for a given component, i.e the application
* which is running inside our main application (CMS, web app).
*
* The return is a table with the following keys:
* * main The normal location of component files. For a back-end Joomla!
* component this is the administrator/components/com_example
* directory.
* * alt The alternate location of component files. For a back-end
* Joomla! component this is the front-end directory, e.g.
* components/com_example
* * site The location of the component files serving the public part of
* the application.
* * admin The location of the component files serving the administrative
* part of the application.
*
* All paths MUST be absolute. All four paths MAY be the same if the
* platform doesn't make a distinction between public and private parts,
* or when the component does not provide both a public and private part.
* All of the directories MUST be defined and non-empty.
*
* @param string $component The name of the component. For Joomla! this
* is something like "com_example"
*
* @return array A hash array with keys main, alt, site and admin.
*/
public function getComponentBaseDirs($component);
/**
* Returns the application's template name
*
* @param boolean|array $params An optional associative array of configuration settings
*
* @return string The template name. System is the fallback.
*/
public function getTemplate($params = false);
/**
* Get application-specific suffixes to use with template paths. This allows
* you to look for view template overrides based on the application version.
*
* @return array A plain array of suffixes to try in template names
*/
public function getTemplateSuffixes();
/**
* Return the absolute path to the application's template overrides
* directory for a specific component. We will use it to look for template
* files instead of the regular component directories. If the application
* does not have such a thing as template overrides return an empty string.
*
* @param string $component The name of the component for which to fetch the overrides
* @param boolean $absolute Should I return an absolute or relative path?
*
* @return string The path to the template overrides directory
*/
public function getTemplateOverridePath($component, $absolute = true);
/**
* Load the translation files for a given component.
*
* @param string $component The name of the component. For Joomla! this
* is something like "com_example"
*
* @return void
*/
public function loadTranslations($component);
/**
* By default FOF will only use the Controller's onBefore* methods to
* perform user authorisation. In some cases, like the Joomla! back-end,
* you also need to perform component-wide user authorisation in the
* Dispatcher. This method MUST implement this authorisation check. If you
* do not need this in your platform, please always return true.
*
* @param string $component The name of the component.
*
* @return boolean True to allow loading the component, false to halt loading
*/
public function authorizeAdmin($component);
/**
* This method will try retrieving a variable from the request (input) data.
* If it doesn't exist it will be loaded from the user state, typically
* stored in the session. If it doesn't exist there either, the $default
* value will be used. If $setUserState is set to true, the retrieved
* variable will be stored in the user session.
*
* @param string $key The user state key for the variable
* @param string $request The request variable name for the variable
* @param Input $input The Input object with the request (input) data
* @param mixed $default The default value. Default: null
* @param string $type The filter type for the variable data. Default: none (no filtering)
* @param boolean $setUserState Should I set the user state with the fetched value?
*
* @return mixed The value of the variable
*/
public function getUserStateFromRequest($key, $request, $input, $default = null, $type = 'none', $setUserState = true);
/**
* Load plugins of a specific type. Obviously this seems to only be required
* in the Joomla! CMS itself.
*
* @param string $type The type of the plugins to be loaded
*
* @return void
*/
public function importPlugin($type);
/**
* Execute plugins (system-level triggers) and fetch back an array with
* their return values.
*
* @param string $event The event (trigger) name, e.g. onBeforeScratchMyEar
* @param array $data A hash array of data sent to the plugins as part of the trigger
*
* @return array A simple array containing the results of the plugins triggered
*/
public function runPlugins($event, $data);
/**
* Perform an ACL check. Please note that FOF uses by default the Joomla!
* CMS convention for ACL privileges, e.g core.edit for the edit privilege.
* If your platform uses different conventions you'll have to override the
* F0F defaults using fof.xml or by specialising the controller.
*
* @param string $action The ACL privilege to check, e.g. core.edit
* @param string $assetname The asset name to check, typically the component's name
*
* @return boolean True if the user is allowed this action
*/
public function authorise($action, $assetname);
/**
* Returns a user object.
*
* @param integer $id The user ID to load. Skip or use null to retrieve
* the object for the currently logged in user.
*
* @return User The \JUser object for the specified user
*/
public function getUser($id = null);
/**
* Returns the \JDocument object which handles this component's response. You
* may also return null and FOF will a. try to figure out the output type by
* examining the "format" input parameter (or fall back to "html") and b.
* FOF will not attempt to load CSS and Javascript files (as it doesn't make
* sense if there's no \JDocument to handle them).
*
* @return Document
*/
public function getDocument();
/**
* Returns an object to handle dates
*
* @param mixed $time The initial time
* @param null $tzOffest The timezone offset
* @param bool $locale Should I try to load a specific class for current language?
*
* @return Date object
*/
public function getDate($time = 'now', $tzOffest = null, $locale = true);
/**
* Return the \JLanguage instance of the CMS/application
*
* @return Language
*/
public function getLanguage();
/**
* Returns the database driver object of the CMS/application
*
* @return JDatabaseDriver
*/
public function getDbo();
/**
* Is this the administrative section of the component?
*
* @return boolean
*/
public function isBackend();
/**
* Is this the public section of the component?
*
* @return boolean
*/
public function isFrontend();
/**
* Is this the Joomla 4 API application?
*
* @return boolean
*/
public function isApi();
/**
* Is this a component running in a CLI application?
*
* @return boolean
*/
public function isCli();
/**
* Is AJAX re-ordering supported? This is 100% Joomla! CMS (version 3+) specific.
*
* @return boolean
*/
public function supportsAjaxOrdering();
/**
* Saves something to the cache. This is supposed to be used for system-wide
* FOF data, not application data.
*
* @param string $key The key of the data to save
* @param string $content The actual data to save
*
* @return boolean True on success
*/
public function setCache($key, $content);
/**
* Retrieves data from the cache. This is supposed to be used for system-side
* FOF data, not application data.
*
* @param string $key The key of the data to retrieve
* @param string $default The default value to return if the key is not found or the cache is not populated
*
* @return string The cached value
*/
public function getCache($key, $default = null);
/**
* Clears the cache of system-wide FOF data. You are supposed to call this in
* your components' installation script post-installation and post-upgrade
* methods or whenever you are modifying the structure of database tables
* accessed by F0F. Please note that FOF's cache never expires and is not
* purged by Joomla!. You MUST use this method to manually purge the cache.
*
* @return boolean True on success
*/
public function clearCache();
/**
* Returns an object that holds the configuration of the current site.
*
* @return Registry
*/
public function getConfig();
/**
* Is the global FOF cache enabled?
*
* @return boolean
*/
public function isGlobalFOFCacheEnabled();
/**
* logs in a user
*
* @param array $authInfo Authentication information
*
* @return boolean True on success
*/
public function loginUser($authInfo);
/**
* logs out a user
*
* @return boolean True on success
*/
public function logoutUser();
/**
* Add a log file for FOF
*
* @param string $file
*
* @return void
*/
public function logAddLogger($file);
/**
* Logs a deprecated practice. In Joomla! this results in the $message being output in the
* deprecated log file, found in your site's log directory.
*
* @param string $message The deprecated practice log message
*
* @return void
*/
public function logDeprecated($message);
/**
* Adds a message to the application's debug log
*
* @param string $message
*
* @return void
*/
public function logDebug($message);
/**
* Adds a message
*
* @param string|array $title A title, or an array of additional fields to add to the log entry
* @param string $logText The translation key to the log text
* @param string $extension The name of the extension logging this entry
* @param User|null $user The user the action is being logged for
*
* @return void
*/
public function logUserAction($title, $logText, $extension, $user = null);
/**
* Returns the root URI for the request.
*
* @param boolean $pathonly If false, prepend the scheme, host and port information. Default is false.
* @param string $path The path
*
* @return string The root URI string.
*/
public function URIroot($pathonly = false, $path = null);
/**
* Returns the base URI for the request.
*
* @param boolean $pathonly If false, prepend the scheme, host and port information. Default is false.
* |
*
* @return string The base URI string
*/
public function URIbase($pathonly = false);
/**
* Method to set a response header. If the replace flag is set then all headers
* with the given name will be replaced by the new one (only if the current platform supports header caching)
*
* @param string $name The name of the header to set.
* @param string $value The value of the header to set.
* @param boolean $replace True to replace any headers with the same name.
*
* @return void
*/
public function setHeader($name, $value, $replace = false);
/**
* In platforms that perform header caching, send all headers.
*
* @return void
*/
public function sendHeaders();
/**
* Immediately terminate the containing application's execution
*
* @param int $code The result code which should be returned by the application
*
* @return void
*/
public function closeApplication($code = 0);
/**
* Perform a redirection to a different page, optionally enqueuing a message for the user.
*
* @param string $url The URL to redirect to
* @param int $status (optional) The HTTP redirection status code, default 301
* @param string $msg (optional) A message to enqueue
* @param string $type (optional) The message type, e.g. 'message' (default), 'warning' or 'error'.
*
* @return void
*
* @throws Exception
*/
public function redirect($url, $status = 301, $msg = null, $type = 'message');
/**
* Handle an exception in a way that results to an error page.
*
* @param Exception $exception The exception to handle
*
* @throws Exception Possibly rethrown exception
*/
public function showErrorPage(Exception $exception);
/**
* Set a variable in the user session
*
* @param string $name The name of the variable to set
* @param string $value (optional) The value to set it to, default is null
* @param string $namespace (optional) The variable's namespace e.g. the component name. Default: 'default'
*
* @return void
*/
public function setSessionVar($name, $value = null, $namespace = 'default');
/**
* Get a variable from the user session
*
* @param string $name The name of the variable to set
* @param string $default (optional) The default value to return if the variable does not exit, default: null
* @param string $namespace (optional) The variable's namespace e.g. the component name. Default: 'default'
*
* @return mixed
*/
public function getSessionVar($name, $default = null, $namespace = 'default');
/**
* Unset a variable from the user session
*
* @param string $name The name of the variable to unset
* @param string $namespace (optional) The variable's namespace e.g. the component name. Default: 'default'
*
* @return void
*/
public function unsetSessionVar($name, $namespace = 'default');
/**
* Return the session token. Two types of tokens can be returned:
*
* Session token ($formToken == false): Used for anti-spam protection of forms. This is specific to a session
* object.
*
* Form token ($formToken == true): A secure hash of the user ID with the session token. Both the session and the
* user are fetched from the application container.
*
* @param bool $formToken Should I return a form token?
* @param bool $forceNew Should I force the creation of a new token?
*
* @return mixed
*/
public function getToken($formToken = false, $forceNew = false);
/**
* Are plugins allowed to run in CLI mode?
*
* @return bool
*/
public function isAllowPluginsInCli();
/**
* Set whether plugins are allowed to run in CLI mode
*
* @param bool $allowPluginsInCli
*/
public function setAllowPluginsInCli($allowPluginsInCli);
/**
* Set a script option.
*
* This allows the backend code to set up configuration options for frontend (JavaScript) code in a way that's safe
* for async / deferred scripts. The options are stored in the document's head as an inline JSON document. This
* JSON document is then parsed by a JavaScript helper function which makes the options available to the scripts
* that consume them.
*
* @param string $key The option key
* @param mixed|JsonSerializable $value The option value. Must be a scalar or a JSON serializable object
* @param bool $merge Should I merge an array value with existing stored values? Default:
* true
*
* @return void
*/
public function addScriptOptions($key, $value, $merge = true);
/**
* Get a script option, or all of the script options
*
* @param string|null $key The script option to retrieve. Null for all options.
*
* @return array|mixed Options for given $key, or all script options
*/
public function getScriptOptions($key = null);
}