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

1011 lines
23 KiB
PHP

<?php
/* Icinga Web 2 | (c) 2013-2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Application\Modules;
use Exception;
use Zend_Controller_Router_Route_Abstract;
use Zend_Controller_Router_Route as Route;
use Zend_Controller_Router_Route_Regex as RegexRoute;
use Icinga\Application\ApplicationBootstrap;
use Icinga\Application\Config;
use Icinga\Application\Icinga;
use Icinga\Application\Logger;
use Icinga\Data\ConfigObject;
use Icinga\Util\Translator;
use Icinga\Web\Hook;
use Icinga\Web\Menu;
use Icinga\Web\Widget;
use Icinga\Web\Widget\Dashboard\Pane;
use Icinga\Module\Setup\SetupWizard;
use Icinga\Util\File;
use Icinga\Exception\ProgrammingError;
use Icinga\Exception\IcingaException;
/**
* 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;
/**
* 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 stdClass
*/
private $metadata;
/**
* Whether we already tried to include the module configuration script
*
* @var bool
*/
private $triedToLaunchConfigScript = 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;
/**
* 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 array
*/
protected $menuItems = array();
/**
* A set of Pane elements
*
* @var array
*/
protected $paneItems = array();
/**
* @var array
*/
protected $searchUrls = array();
/**
* Provide a search URL
*
* @param string $title
* @param string $url
* @param int $priority
*/
public function provideSearchUrl($title, $url, $priority = 0)
{
$searchUrl = (object) array(
'title' => (string) $title,
'url' => (string) $url,
'priority' => (int) $priority
);
$this->searchUrls[] = $searchUrl;
}
public function getSearchUrls()
{
$this->launchConfigScript();
return $this->searchUrls;
}
/**
* Get all Menu Items
*
* @return array
*/
public function getPaneItems()
{
$this->launchConfigScript();
return $this->paneItems;
}
/**
* Add a pane to dashboard
*
* @param $name
* @return Pane
*/
protected function dashboard($name)
{
$this->paneItems[$name] = new Pane($name);
return $this->paneItems[$name];
}
/**
* Get all Menu Items
*
* @return array
*/
public function getMenuItems()
{
$this->launchConfigScript();
return $this->menuItems;
}
/**
* Add a menu Section to the Sidebar menu
*
* @param $name
* @param array $properties
* @return mixed
*/
protected function menuSection($name, array $properties = array())
{
if (array_key_exists($name, $this->menuItems)) {
$this->menuItems[$name]->setProperties($properties);
} else {
$this->menuItems[$name] = new Menu($name, new ConfigObject($properties));
}
return $this->menuItems[$name];
}
/**
* 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->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 = $basedir . '/module.info';
}
/**
* Register module
*
* @return bool
*/
public function register()
{
if ($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;
}
/**
* Return whether this module has been registered
*
* @return bool
*/
public function isRegistered()
{
return $this->registered;
}
/**
* Test for an enabled module by name
*
* @param string $name
*
* @return boolean
*/
public static function exists($name)
{
return Icinga::app()->getModuleManager()->hasEnabled($name);
}
/**
* Get 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);
}
/**
* Test if module provides css
*
* @return bool
*/
public function hasCss()
{
return file_exists($this->getCssFilename());
}
/**
* Returns the complete less file name
*
* @return string
*/
public function getCssFilename()
{
return $this->cssdir . '/module.less';
}
/**
* Test if module provides js
*
* @return bool
*/
public function hasJs()
{
return file_exists($this->getJsFilename());
}
/**
* Returns the complete js file name
*
* @return string
*/
public function getJsFilename()
{
return $this->jsdir . '/module.js';
}
/**
* Getter for module name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Getter for module version
*
* @return string
*/
public function getVersion()
{
return $this->metadata()->version;
}
/**
* Get module description
*
* @return string
*/
public function getDescription()
{
return $this->metadata()->description;
}
/**
* Get module title (short description)
*
* @return string
*/
public function getTitle()
{
return $this->metadata()->title;
}
/**
* Getter for module version
*
* @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 .= $line;
continue;
}
}
list($key, $val) = preg_split('/:\s+/', $line, 2);
$key = lcfirst($key);
switch ($key) {
case 'depends':
if (strpos($val, ' ') === false) {
$metadata->depends[$val] = true;
continue;
}
$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;
}
/**
* Getter for css file name
*
* @return string
*/
public function getCssDir()
{
return $this->cssdir;
}
/**
* Getter for base directory
*
* @return string
*/
public function getBaseDir()
{
return $this->basedir;
}
/**
* Get the controller directory
*
* @return string
*/
public function getControllerDir()
{
return $this->controllerdir;
}
/**
* Getter for library directory
*
* @return string
*/
public function getLibDir()
{
return $this->libdir;
}
/**
* Getter for configuration directory
*
* @return string
*/
public function getConfigDir()
{
return $this->configdir;
}
/**
* Getter for form directory
*
* @return string
*/
public function getFormDir()
{
return $this->formdir;
}
/**
* Getter for module config object
*
* @param string $file
*
* @return Config
*/
public function getConfig($file = null)
{
return $this->app->getConfig()->module($this->name, $file);
}
/**
* Retrieve provided permissions
*
* @param string $name Permission name
*
* @return array
*/
public function getProvidedPermissions()
{
$this->launchConfigScript();
return $this->permissionList;
}
/**
* Retrieve provided restrictions
*
* @param string $name Restriction name
* @return array
*/
public function getProvidedRestrictions()
{
$this->launchConfigScript();
return $this->restrictionList;
}
/**
* Whether the given permission name is supported
*
* @param string $name Permission name
*
* @return bool
*/
public function providesPermission($name)
{
$this->launchConfigScript();
return array_key_exists($name, $this->permissionList);
}
/**
* Whether the given restriction name is supported
*
* @param string $name Restriction name
*
* @return bool
*/
public function providesRestriction($name)
{
$this->launchConfigScript();
return array_key_exists($name, $this->restrictionList);
}
/**
* Retrieve this modules configuration tabs
*
* @return Icinga\Web\Widget\Tabs
*/
public function getConfigTabs()
{
$this->launchConfigScript();
$tabs = Widget::create('tabs');
$tabs->add('info', array(
'url' => 'config/module',
'urlParams' => array('name' => $this->getName()),
'label' => 'Module: ' . $this->getName()
));
foreach ($this->configTabs as $name => $config) {
$tabs->add($name, $config);
}
return $tabs;
}
/**
* Whether this 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;
}
/**
* Return this module's setup wizard
*
* @return SetupWizard
*/
public function getSetupWizard()
{
return new $this->setupWizard;
}
/**
* Provide a named permission
*
* @param string $name Unique permission name
* @param string $name Permission description
*
* @return void
*/
protected function providePermission($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 $description Restriction description
*
* @return void
*/
protected function provideRestriction($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 string $config Tab config
*
* @return $this
*/
protected function provideConfigTab($name, $config = array())
{
if (! array_key_exists('url', $config)) {
throw new ProgrammingError('A module config tab MUST provide and "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;
}
/**
* Register new namespaces on the autoloader
*
* @return $this
*/
protected function registerAutoloader()
{
$moduleName = ucfirst($this->getName());
$moduleLibraryDir = $this->getLibDir(). '/'. $moduleName;
if (is_dir($moduleLibraryDir)) {
$this->app->getLoader()->registerNamespace('Icinga\\Module\\' . $moduleName, $moduleLibraryDir);
}
$moduleFormDir = $this->getFormDir();
if (is_dir($moduleFormDir)) {
$this->app->getLoader()->registerNamespace('Icinga\\Module\\' . $moduleName. '\\Forms', $moduleFormDir);
}
return $this;
}
/**
* Bind text domain for i18n
*
* @return $this
*/
protected function registerLocales()
{
if ($this->hasLocales()) {
Translator::registerDomain($this->name, $this->localedir);
}
return $this;
}
/**
* return bool Whether this module has translations
*/
public function hasLocales()
{
return file_exists($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 $this;
}
if (file_exists($this->controllerdir) && is_dir($this->controllerdir)) {
$this->app->getfrontController()->addControllerDirectory(
$this->controllerdir,
$this->name
);
}
$this->registerLocales()
->registerRoutes();
return $this;
}
/**
* Add routes for static content and any route added via addRoute() to the route chain
*
* @return $this
* @see addRoute()
*/
protected function registerRoutes()
{
$router = $this->app->getFrontController()->getRouter();
foreach ($this->routes as $name => $route) {
$router->addRoute($name, $route);
}
$router->addRoute(
$this->name . '_jsprovider',
new Route(
'js/' . $this->name . '/:file',
array(
'controller' => 'static',
'action' =>'javascript',
'module_name' => $this->name
)
)
);
$router->addRoute(
$this->name . '_img',
new RegexRoute(
'img/' . $this->name . '/(.+)',
array(
'controller' => 'static',
'action' => 'img',
'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) === true) {
include($file);
}
return $this;
}
/**
* Run module config script
*/
protected function launchConfigScript()
{
if ($this->triedToLaunchConfigScript || !$this->registered) {
return;
}
$this->triedToLaunchConfigScript = true;
if (! file_exists($this->configScript)
|| ! is_readable($this->configScript)) {
return;
}
include($this->configScript);
}
/**
* Register hook
*
* @param string $name
* @param string $class
* @param string $key
*
* @return $this
*/
protected function registerHook($name, $class, $key = null)
{
if ($key === null) {
$key = $this->name;
}
Hook::register($name, $key, $class);
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;
}
/**
* Translate a string with the global mt()
*
* @param $string
* @param null $context
*
* @return mixed|string
*/
protected function translate($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);
}
}