silverstripe-framework/admin/code/AdminRootController.php

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<?php
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namespace SilverStripe\Admin;
use SilverStripe\Control\Director;
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use SilverStripe\Control\HTTPRequest;
use SilverStripe\Control\Controller;
use SilverStripe\Core\Config\Config;
use SilverStripe\Core\Injector\Injector;
use SilverStripe\ORM\DataModel;
use SilverStripe\View\TemplateGlobalProvider;
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class AdminRootController extends Controller implements TemplateGlobalProvider
{
/**
* Fallback admin URL in case this cannot be infered from Director.rules
*
* @var string
* @config
*/
private static $url_base = 'admin';
/**
* Convenience function to return the admin route config.
* Looks for the {@link Director::$rules} for the current admin Controller.
*
* @return string
*/
public static function get_admin_route()
{
$rules = Director::config()->rules;
$adminRoute = array_search(__CLASS__, $rules);
return $adminRoute ?: static::config()->url_base;
}
/**
* Returns the root admin URL for the site with trailing slash
*
* @return string
*/
public static function admin_url()
{
return self::get_admin_route() . '/';
}
/**
* @var string
* @config
* The LeftAndMain child that will be used as the initial panel to display if none is selected (i.e. if you
* visit /admin)
*/
private static $default_panel = 'SilverStripe\\Admin\\SecurityAdmin';
/**
* @var array
* Holds an array of url_pattern => controller k/v pairs, the same as Director::rules. However this is built
* dynamically from introspecting on all the classes that derive from LeftAndMain.
*
* Don't access this directly - always access via the rules() accessor below, which will build this array
* the first time it's accessed
*/
private static $_rules = null;
/**
* Gets a list of url_pattern => controller k/v pairs for each LeftAndMain derived controller
*/
public static function rules()
{
if (self::$_rules === null) {
self::$_rules = array();
// Map over the array calling add_rule_for_controller on each
$classes = CMSMenu::get_cms_classes(null, true, CMSMenu::URL_PRIORITY);
array_map(array(__CLASS__, 'add_rule_for_controller'), $classes);
}
return self::$_rules;
}
/**
* Add the appropriate k/v pair to self::$rules for the given controller.
*
* @param string $controllerClass Name of class
*/
protected static function add_rule_for_controller($controllerClass)
{
$urlSegment = Config::inst()->get($controllerClass, 'url_segment', Config::FIRST_SET);
$urlRule = Config::inst()->get($controllerClass, 'url_rule', Config::FIRST_SET);
if ($urlSegment) {
// Make director rule
if ($urlRule[0] == '/') {
$urlRule = substr($urlRule, 1);
}
$rule = $urlSegment . '//' . $urlRule;
// ensure that the first call to add_rule_for_controller for a rule takes precedence
if (!isset(self::$_rules[$rule])) {
self::$_rules[$rule] = $controllerClass;
}
}
}
public function handleRequest(HTTPRequest $request, DataModel $model)
{
// If this is the final portion of the request (i.e. the URL is just /admin), direct to the default panel
if ($request->allParsed()) {
$segment = Config::inst()->get($this->config()->default_panel, 'url_segment');
$this->redirect(Controller::join_links(self::admin_url(), $segment, '/'));
return $this->getResponse();
} // Otherwise
else {
$rules = self::rules();
foreach ($rules as $pattern => $controller) {
if (($arguments = $request->match($pattern, true)) !== false) {
$controllerObj = Injector::inst()->create($controller);
$controllerObj->setSession($this->session);
return $controllerObj->handleRequest($request, $model);
}
}
}
return $this->httpError(404, 'Not found');
}
/**
* @return array Returns an array of strings of the method names of methods on the call that should be exposed
* as global variables in the templates.
*/
public static function get_template_global_variables()
{
return array(
'adminURL' => 'admin_url'
);
}
}