icingaweb2/library/Icinga/Application/Modules/Module.php

1339 lines
32 KiB
PHP

<?php
/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
namespace Icinga\Application\Modules;
use Exception;
use Zend_Controller_Router_Route;
use Zend_Controller_Router_Route_Abstract;
use Zend_Controller_Router_Route_Regex;
use Icinga\Application\ApplicationBootstrap;
use Icinga\Application\Config;
use Icinga\Application\Icinga;
use Icinga\Application\Logger;
use Icinga\Application\Modules\DashboardContainer;
use Icinga\Application\Modules\MenuItemContainer;
use Icinga\Exception\IcingaException;
use Icinga\Exception\ProgrammingError;
use Icinga\Module\Setup\SetupWizard;
use Icinga\Util\File;
use Icinga\Util\Translator;
use Icinga\Web\Controller\Dispatcher;
use Icinga\Application\Hook;
use Icinga\Web\Navigation\Navigation;
use Icinga\Web\Widget;
/**
* Module handling
*
* Register modules and initialize it
*/
class Module
{
/**
* Module name
*
* @var string
*/
private $name;
/**
* Base directory of module
*
* @var string
*/
private $basedir;
/**
* Directory for styles
*
* @var string
*/
private $cssdir;
/**
* Base application directory
*
* @var string
*/
private $appdir;
/**
* Library directory
*
* @var string
*/
private $libdir;
/**
* Directory containing translations
*
* @var string
*/
private $localedir;
/**
* Directory where controllers reside
*
* @var string
*/
private $controllerdir;
/**
* Directory containing form implementations
*
* @var string
*/
private $formdir;
/**
* Module bootstrapping script
*
* @var string
*/
private $runScript;
/**
* Module configuration script
*
* @var string
*/
private $configScript;
/**
* Module metadata filename
*
* @var string
*/
private $metadataFile;
/**
* Module metadata (version...)
*
* @var object
*/
private $metadata;
/**
* Whether we already tried to include the module configuration script
*
* @var bool
*/
private $triedToLaunchConfigScript = false;
/**
* Whether the module's namespaces have been registered on our autoloader
*
* @var bool
*/
protected $registeredAutoloader = false;
/**
* Whether this module has been registered
*
* @var bool
*/
private $registered = false;
/**
* Provided permissions
*
* @var array
*/
private $permissionList = array();
/**
* Provided restrictions
*
* @var array
*/
private $restrictionList = array();
/**
* Provided config tabs
*
* @var array
*/
private $configTabs = array();
/**
* Provided setup wizard
*
* @var string
*/
private $setupWizard;
/**
* Icinga application
*
* @var \Icinga\Application\Web
*/
private $app;
/**
* The CSS/LESS files this module provides
*
* @var array
*/
protected $cssFiles = array();
/**
* The Javascript files this module provides
*
* @var array
*/
protected $jsFiles = array();
/**
* Routes to add to the route chain
*
* @var array Array of name-route pairs
*
* @see addRoute()
*/
protected $routes = array();
/**
* A set of menu elements
*
* @var MenuItemContainer[]
*/
protected $menuItems = array();
/**
* A set of Pane elements
*
* @var array
*/
protected $paneItems = array();
/**
* A set of objects representing a searchUrl configuration
*
* @var array
*/
protected $searchUrls = array();
/**
* This module's user backends providing several authentication mechanisms
*
* @var array
*/
protected $userBackends = array();
/**
* This module's user group backends
*
* @var array
*/
protected $userGroupBackends = array();
/**
* This module's configurable navigation items
*
* @var array
*/
protected $navigationItems = array();
/**
* Create a new module object
*
* @param ApplicationBootstrap $app
* @param string $name
* @param string $basedir
*/
public function __construct(ApplicationBootstrap $app, $name, $basedir)
{
$this->app = $app;
$this->name = $name;
$this->basedir = $basedir;
$this->cssdir = $basedir . '/public/css';
$this->jsdir = $basedir . '/public/js';
$this->libdir = $basedir . '/library';
$this->configdir = $app->getConfigDir('modules/' . $name);
$this->appdir = $basedir . '/application';
$this->localedir = $basedir . '/application/locale';
$this->formdir = $basedir . '/application/forms';
$this->controllerdir = $basedir . '/application/controllers';
$this->runScript = $basedir . '/run.php';
$this->configScript = $basedir . '/configuration.php';
$this->metadataFile = $basedir . '/module.info';
}
/**
* Provide a search URL
*
* @param string $title
* @param string $url
* @param int $priority
*
* @return $this
*/
public function provideSearchUrl($title, $url, $priority = 0)
{
$this->searchUrls[] = (object) array(
'title' => (string) $title,
'url' => (string) $url,
'priority' => (int) $priority
);
return $this;
}
/**
* Get this module's search urls
*
* @return array
*/
public function getSearchUrls()
{
$this->launchConfigScript();
return $this->searchUrls;
}
/**
* Return this module's dashboard
*
* @return Navigation
*/
public function getDashboard()
{
$this->launchConfigScript();
return $this->createDashboard($this->paneItems);
}
/**
* Create and return a new navigation for the given dashboard panes
*
* @param DashboardContainer[] $panes
*
* @return Navigation
*/
public function createDashboard(array $panes)
{
$navigation = new Navigation();
foreach ($panes as $pane) {
/** @var DashboardContainer $pane */
$dashlets = [];
foreach ($pane->getDashlets() as $dashletName => $dashletUrl) {
$dashlets[$dashletName] = [
'label' => $this->translate($dashletName),
'url' => $dashletUrl
];
}
$navigation->addItem(
$pane->getName(),
array_merge(
$pane->getProperties(),
array(
'label' => $this->translate($pane->getName()),
'type' => 'dashboard-pane',
'children' => $dashlets
)
)
);
}
return $navigation;
}
/**
* Add or get a dashboard pane
*
* @param string $name
* @param array $properties
*
* @return DashboardContainer
*/
protected function dashboard($name, array $properties = array())
{
if (array_key_exists($name, $this->paneItems)) {
$this->paneItems[$name]->setProperties($properties);
} else {
$this->paneItems[$name] = new DashboardContainer($name, $properties);
}
return $this->paneItems[$name];
}
/**
* Return this module's menu
*
* @return Navigation
*/
public function getMenu()
{
$this->launchConfigScript();
return Navigation::fromArray($this->createMenu($this->menuItems));
}
/**
* Create and return an array structure for the given menu items
*
* @param MenuItemContainer[] $items
*
* @return array
*/
private function createMenu(array $items)
{
$navigation = array();
foreach ($items as $item) {
/** @var MenuItemContainer $item */
$properties = $item->getProperties();
$properties['children'] = $this->createMenu($item->getChildren());
if (! isset($properties['label'])) {
$properties['label'] = $this->translate($item->getName());
}
$navigation[$item->getName()] = $properties;
}
return $navigation;
}
/**
* Add or get a menu section
*
* @param string $name
* @param array $properties
*
* @return MenuItemContainer
*/
protected function menuSection($name, array $properties = array())
{
if (array_key_exists($name, $this->menuItems)) {
$this->menuItems[$name]->setProperties($properties);
} else {
$this->menuItems[$name] = new MenuItemContainer($name, $properties);
}
return $this->menuItems[$name];
}
/**
* Register module
*
* @return bool
*/
public function register()
{
if ($this->registered) {
return true;
}
$this->registerAutoloader();
try {
$this->launchRunScript();
} catch (Exception $e) {
Logger::warning(
'Launching the run script %s for module %s failed with the following exception: %s',
$this->runScript,
$this->name,
$e->getMessage()
);
return false;
}
$this->registerWebIntegration();
$this->registered = true;
return true;
}
/**
* Get whether this module has been registered
*
* @return bool
*/
public function isRegistered()
{
return $this->registered;
}
/**
* Test for an enabled module by name
*
* @param string $name
*
* @return bool
*/
public static function exists($name)
{
return Icinga::app()->getModuleManager()->hasEnabled($name);
}
/**
* Get a module by name
*
* @param string $name
* @param bool $autoload
*
* @return mixed
*
* @throws ProgrammingError When the module is not yet loaded
*/
public static function get($name, $autoload = false)
{
$manager = Icinga::app()->getModuleManager();
if (!$manager->hasLoaded($name)) {
if ($autoload === true && $manager->hasEnabled($name)) {
$manager->loadModule($name);
}
}
// Throws ProgrammingError when the module is not yet loaded
return $manager->getModule($name);
}
/**
* Provide an additional CSS/LESS file
*
* @param string $path The path to the file, relative to self::$cssdir
*
* @return $this
*/
protected function provideCssFile($path)
{
$this->cssFiles[] = $this->cssdir . DIRECTORY_SEPARATOR . $path;
return $this;
}
/**
* Test if module provides css
*
* @return bool
*/
public function hasCss()
{
if (file_exists($this->getCssFilename())) {
return true;
}
$this->launchConfigScript();
return !empty($this->cssFiles);
}
/**
* Returns the complete less file name
*
* @return string
*/
public function getCssFilename()
{
return $this->cssdir . '/module.less';
}
/**
* Return the CSS/LESS files this module provides
*
* @return array
*/
public function getCssFiles()
{
$this->launchConfigScript();
$files = $this->cssFiles;
if (file_exists($this->getCssFilename())) {
$files[] = $this->getCssFilename();
}
return $files;
}
/**
* Provide an additional Javascript file
*
* @param string $path The path to the file, relative to self::$jsdir
*
* @return $this
*/
protected function provideJsFile($path)
{
$this->jsFiles[] = $this->jsdir . DIRECTORY_SEPARATOR . $path;
return $this;
}
/**
* Test if module provides js
*
* @return bool
*/
public function hasJs()
{
if (file_exists($this->getJsFilename())) {
return true;
}
$this->launchConfigScript();
return !empty($this->jsFiles);
}
/**
* Returns the complete js file name
*
* @return string
*/
public function getJsFilename()
{
return $this->jsdir . '/module.js';
}
/**
* Return the Javascript files this module provides
*
* @return array
*/
public function getJsFiles()
{
$this->launchConfigScript();
$files = $this->jsFiles;
$files[] = $this->getJsFilename();
return $files;
}
/**
* Get the module name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Get the module namespace
*
* @return string
*/
public function getNamespace()
{
return 'Icinga\\Module\\' . ucfirst($this->getName());
}
/**
* Get the module version
*
* @return string
*/
public function getVersion()
{
return $this->metadata()->version;
}
/**
* Get the module description
*
* @return string
*/
public function getDescription()
{
return $this->metadata()->description;
}
/**
* Get the module title (short description)
*
* @return string
*/
public function getTitle()
{
return $this->metadata()->title;
}
/**
* Get the module dependencies
*
* @return array
*/
public function getDependencies()
{
return $this->metadata()->depends;
}
/**
* Fetch module metadata
*
* @return object
*/
protected function metadata()
{
if ($this->metadata === null) {
$metadata = (object) array(
'name' => $this->getName(),
'version' => '0.0.0',
'title' => null,
'description' => '',
'depends' => array(),
);
if (file_exists($this->metadataFile)) {
$key = null;
$file = new File($this->metadataFile, 'r');
foreach ($file as $line) {
$line = rtrim($line);
if ($key === 'description') {
if (empty($line)) {
$metadata->description .= "\n";
continue;
} elseif ($line[0] === ' ') {
$metadata->description .= $line;
continue;
}
} elseif (empty($line)) {
continue;
}
list($key, $val) = preg_split('/:\s+/', $line, 2);
$key = lcfirst($key);
switch ($key) {
case 'depends':
if (strpos($val, ' ') === false) {
$metadata->depends[$val] = true;
continue 2;
}
$parts = preg_split('/,\s+/', $val);
foreach ($parts as $part) {
if (preg_match('/^(\w+)\s+\((.+)\)$/', $part, $m)) {
$metadata->depends[$m[1]] = $m[2];
} else {
// TODO: FAIL?
continue;
}
}
break;
case 'description':
if ($metadata->title === null) {
$metadata->title = $val;
} else {
$metadata->description = $val;
}
break;
default:
$metadata->{$key} = $val;
}
}
}
if ($metadata->title === null) {
$metadata->title = $this->getName();
}
if ($metadata->description === '') {
// TODO: Check whether the translation module is able to
// extract this
$metadata->description = t(
'This module has no description'
);
}
$this->metadata = $metadata;
}
return $this->metadata;
}
/**
* Get the module's CSS directory
*
* @return string
*/
public function getCssDir()
{
return $this->cssdir;
}
/**
* Get the module's controller directory
*
* @return string
*/
public function getControllerDir()
{
return $this->controllerdir;
}
/**
* Get the module's base directory
*
* @return string
*/
public function getBaseDir()
{
return $this->basedir;
}
/**
* Get the module's application directory
*
* @return string
*/
public function getApplicationDir()
{
return $this->appdir;
}
/**
* Get the module's library directory
*
* @return string
*/
public function getLibDir()
{
return $this->libdir;
}
/**
* Get the module's configuration directory
*
* @return string
*/
public function getConfigDir()
{
return $this->configdir;
}
/**
* Get the module's form directory
*
* @return string
*/
public function getFormDir()
{
return $this->formdir;
}
/**
* Get the module config
*
* @param string $file
*
* @return Config
*/
public function getConfig($file = 'config')
{
return $this->app->getConfig()->module($this->name, $file);
}
/**
* Get provided permissions
*
* @return array
*/
public function getProvidedPermissions()
{
$this->launchConfigScript();
return $this->permissionList;
}
/**
* Get provided restrictions
*
* @return array
*/
public function getProvidedRestrictions()
{
$this->launchConfigScript();
return $this->restrictionList;
}
/**
* Whether the module provides the given restriction
*
* @param string $name Restriction name
*
* @return bool
*/
public function providesRestriction($name)
{
$this->launchConfigScript();
return array_key_exists($name, $this->restrictionList);
}
/**
* Whether the module provides the given permission
*
* @param string $name Permission name
*
* @return bool
*/
public function providesPermission($name)
{
$this->launchConfigScript();
return array_key_exists($name, $this->permissionList);
}
/**
* Get the module configuration tabs
*
* @return \Icinga\Web\Widget\Tabs
*/
public function getConfigTabs()
{
$this->launchConfigScript();
$tabs = Widget::create('tabs');
/** @var \Icinga\Web\Widget\Tabs $tabs */
$tabs->add('info', array(
'url' => 'config/module',
'urlParams' => array('name' => $this->getName()),
'label' => 'Module: ' . $this->getName()
));
if ($this->app->getModuleManager()->hasEnabled($this->name)) {
foreach ($this->configTabs as $name => $config) {
$tabs->add($name, $config);
}
}
return $tabs;
}
/**
* Whether the module provides a setup wizard
*
* @return bool
*/
public function providesSetupWizard()
{
$this->launchConfigScript();
if (class_exists($this->setupWizard)) {
$wizard = new $this->setupWizard;
return $wizard instanceof SetupWizard;
}
return false;
}
/**
* Get the module's setup wizard
*
* @return SetupWizard
*/
public function getSetupWizard()
{
return new $this->setupWizard;
}
/**
* Get the module's user backends
*
* @return array
*/
public function getUserBackends()
{
$this->launchConfigScript();
return $this->userBackends;
}
/**
* Get the module's user group backends
*
* @return array
*/
public function getUserGroupBackends()
{
$this->launchConfigScript();
return $this->userGroupBackends;
}
/**
* Return this module's configurable navigation items
*
* @return array
*/
public function getNavigationItems()
{
$this->launchConfigScript();
return $this->navigationItems;
}
/**
* Provide a named permission
*
* @param string $name Unique permission name
* @param string $description Permission description
*
* @throws IcingaException If the permission is already provided
*/
protected function providePermission($name, $description)
{
if ($this->providesPermission($name)) {
throw new IcingaException(
'Cannot provide permission "%s" twice',
$name
);
}
$this->permissionList[$name] = (object) array(
'name' => $name,
'description' => $description
);
}
/**
* Provide a named restriction
*
* @param string $name Unique restriction name
* @param string $description Restriction description
*
* @throws IcingaException If the restriction is already provided
*/
protected function provideRestriction($name, $description)
{
if ($this->providesRestriction($name)) {
throw new IcingaException(
'Cannot provide restriction "%s" twice',
$name
);
}
$this->restrictionList[$name] = (object) array(
'name' => $name,
'description' => $description
);
}
/**
* Provide a module config tab
*
* @param string $name Unique tab name
* @param array $config Tab config
*
* @return $this
* @throws ProgrammingError If $config lacks the key 'url'
*/
protected function provideConfigTab($name, $config = array())
{
if (! array_key_exists('url', $config)) {
throw new ProgrammingError('A module config tab MUST provide a "url"');
}
$config['url'] = $this->getName() . '/' . ltrim($config['url'], '/');
$this->configTabs[$name] = $config;
return $this;
}
/**
* Provide a setup wizard
*
* @param string $className The name of the class
*
* @return $this
*/
protected function provideSetupWizard($className)
{
$this->setupWizard = $className;
return $this;
}
/**
* Provide a user backend capable of authenticating users
*
* @param string $identifier The identifier of the new backend type
* @param string $className The name of the class
*
* @return $this
*/
protected function provideUserBackend($identifier, $className)
{
$this->userBackends[strtolower($identifier)] = $className;
return $this;
}
/**
* Provide a user group backend
*
* @param string $identifier The identifier of the new backend type
* @param string $className The name of the class
*
* @return $this
*/
protected function provideUserGroupBackend($identifier, $className)
{
$this->userGroupBackends[strtolower($identifier)] = $className;
return $this;
}
/**
* Provide a new type of configurable navigation item with a optional label and config filename
*
* @param string $type
* @param string $label
* @param string $config
*
* @return $this
*/
protected function provideNavigationItem($type, $label = null, $config = null)
{
$this->navigationItems[$type] = array(
'label' => $label,
'config' => $config
);
return $this;
}
/**
* Register module namespaces on our class loader
*
* @return $this
*/
protected function registerAutoloader()
{
if ($this->registeredAutoloader) {
return $this;
}
$moduleName = ucfirst($this->getName());
$this->app->getLoader()->registerNamespace(
'Icinga\\Module\\' . $moduleName,
$this->getLibDir() . '/'. $moduleName,
$this->getApplicationDir()
);
$this->registeredAutoloader = true;
return $this;
}
/**
* Bind text domain for i18n
*
* @return $this
*/
protected function registerLocales()
{
if ($this->hasLocales()) {
Translator::registerDomain($this->name, $this->localedir);
}
return $this;
}
/**
* Get whether the module has translations
*/
public function hasLocales()
{
return file_exists($this->localedir) && is_dir($this->localedir);
}
/**
* List all available locales
*
* @return array Locale list
*/
public function listLocales()
{
$locales = array();
if (! $this->hasLocales()) {
return $locales;
}
$dh = opendir($this->localedir);
while (false !== ($file = readdir($dh))) {
$filename = $this->localedir . DIRECTORY_SEPARATOR . $file;
if (preg_match('/^[a-z]{2}_[A-Z]{2}$/', $file) && is_dir($filename)) {
$locales[] = $file;
}
}
closedir($dh);
sort($locales);
return $locales;
}
/**
* Register web integration
*
* Add controller directory to mvc
*
* @return $this
*/
protected function registerWebIntegration()
{
if (! $this->app->isWeb()) {
return $this;
}
return $this
->registerLocales()
->registerRoutes();
}
/**
* Add routes for static content and any route added via {@link addRoute()} to the route chain
*
* @return $this
*/
protected function registerRoutes()
{
$router = $this->app->getFrontController()->getRouter();
// TODO: We should not be required to do this. Please check dispatch()
$this->app->getfrontController()->addControllerDirectory(
$this->getControllerDir(),
$this->getName()
);
/** @var \Zend_Controller_Router_Rewrite $router */
foreach ($this->routes as $name => $route) {
$router->addRoute($name, $route);
}
$router->addRoute(
$this->name . '_jsprovider',
new Zend_Controller_Router_Route(
'js/' . $this->name . '/:file',
array(
'action' => 'javascript',
'controller' => 'static',
'module' => 'default',
'module_name' => $this->name
)
)
);
$router->addRoute(
$this->name . '_img',
new Zend_Controller_Router_Route_Regex(
'img/' . $this->name . '/(.+)',
array(
'action' => 'img',
'controller' => 'static',
'module' => 'default',
'module_name' => $this->name
),
array(
1 => 'file'
)
)
);
return $this;
}
/**
* Run module bootstrap script
*
* @return $this
*/
protected function launchRunScript()
{
return $this->includeScript($this->runScript);
}
/**
* Include a php script if it is readable
*
* @param string $file File to include
*
* @return $this
*/
protected function includeScript($file)
{
if (file_exists($file) && is_readable($file)) {
include $file;
}
return $this;
}
/**
* Run module config script
*
* @return $this
*/
protected function launchConfigScript()
{
if ($this->triedToLaunchConfigScript) {
return $this;
}
$this->triedToLaunchConfigScript = true;
$this->registerAutoloader();
return $this->includeScript($this->configScript);
}
/**
* Register a hook
*
* @param string $name Name of the hook
* @param string $class Class of the hook w/ namespace
* @param string $key
*
* @return $this
*
* @deprecated Deprecated since 2.1.1. Use {@link provideHook()} instead
*/
protected function registerHook($name, $class, $key = null)
{
return $this->provideHook($name, $class, $key);
}
protected function slashesToNamespace($class)
{
$list = explode('/', $class);
foreach ($list as &$part) {
$part = ucfirst($part);
}
return implode('\\', $list);
}
/**
* Provide a hook implementation
*
* @param string $name Name of the hook for which to provide an implementation
* @param string $implementation Fully qualified name of the class providing the hook implementation.
* Defaults to the module's ProvidedHook namespace plus the hook's name for the
* class name
* @param bool $alwaysRun To run the hook always (e.g. without permission check)
*
* @return $this
*/
protected function provideHook($name, $implementation = null, $alwaysRun = false)
{
if ($implementation === null) {
$implementation = $name;
}
if (strpos($implementation, '\\') === false) {
$class = $this->getNamespace()
. '\\ProvidedHook\\'
. $this->slashesToNamespace($implementation);
} else {
$class = $implementation;
}
Hook::register($name, $class, $class, $alwaysRun);
return $this;
}
/**
* Add a route which will be added to the route chain
*
* @param string $name Name of the route
* @param Zend_Controller_Router_Route_Abstract $route Instance of the route
*
* @return $this
* @see registerRoutes()
*/
protected function addRoute($name, Zend_Controller_Router_Route_Abstract $route)
{
$this->routes[$name] = $route;
return $this;
}
/**
* (non-PHPDoc)
* @see Translator::translate() For the function documentation.
*/
protected function translate($string, $context = null)
{
return mt($this->name, $string, $context);
}
/**
* (non-PHPDoc)
* @see Translator::translatePlural() For the function documentation.
*/
protected function translatePlural($textSingular, $textPlural, $number, $context = null)
{
return mtp($this->name, $textSingular, $textPlural, $number, $context);
}
}