mirror of
https://github.com/silverstripe/silverstripe-framework
synced 2024-10-22 14:05:37 +02:00
0e1289bdf2
git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@61184 467b73ca-7a2a-4603-9d3b-597d59a354a9
721 lines
23 KiB
PHP
721 lines
23 KiB
PHP
<?php
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/**
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* Director is responsible for processing URLs, and providing environment information.
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*
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* The most important part of director is {@link Director::direct()}, which is passed a URL and will execute the appropriate
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* controller.
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*
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* Director also has a number of static methods that provide information about the environment, such as {@link Director::set_environment_type()}.
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*
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* @package sapphire
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* @subpackage control
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* @see Director::direct(),Director::addRules(),Director::set_environment_type()
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*/
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class Director {
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static private $urlSegment;
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static private $urlParams;
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static private $rules = array();
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static $siteMode;
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static $alternateBaseFolder;
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static $alternateBaseURL;
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static $dev_servers = array(
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'localhost',
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'127.0.0.1'
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);
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static $test_servers = array();
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static protected $environment_type;
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/**
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* Sets the site mode (if it is the public site or the cms),
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* and runs registered modules.
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*/
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static protected $callbacks;
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function __construct() {
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if(isset($_GET['debug_profile'])) Profiler::mark("Director", "construct");
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Session::addToArray('history', substr($_SERVER['REQUEST_URI'], strlen(Director::baseURL())));
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if(isset($_GET['debug_profile'])) Profiler::unmark("Director", "construct");
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}
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/**
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* Return a URL from this user's navigation history.
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* @param pagesBack The number of pages back to go. The default, 1, returns the previous
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* page.
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*/
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static function history($pagesBack = 1) {
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return Session::get('history.' . sizeof(Session::get('history')) - $pagesBack - 1);
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}
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/**
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* Add URL matching rules to the Director.
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*
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* The director is responsible for turning URLs into Controller objects. It does thi
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*
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* @param $priority The priority of the rules; higher values will get your rule checked first.
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* We recommend priority 100 for your site's rules. The built-in rules are priority 10, standard modules are priority 50.
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*/
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static function addRules($priority, $rules) {
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Director::$rules[$priority] = isset(Director::$rules[$priority]) ? array_merge($rules, (array)Director::$rules[$priority]) : $rules;
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}
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/**
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* Process the given URL, creating the appropriate controller and executing it.
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*
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* Request processing is handled as folows:
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* - Director::direct() creates a new HTTPResponse object and passes this to Director::handleRequest().
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* - Director::handleRequest($request) checks each of the Director rules and identifies a controller to handle this
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* request.
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* - Controller::handleRequest($request) is then called. This will find a rule to handle the URL, and call the rule
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* handling method.
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* - RequestHandlingData::handleRequest($request) is recursively called whenever a rule handling method returns a
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* RequestHandlingData object.
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*
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* In addition to request processing, Director will manage the session, and perform the output of the actual response
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* to the browser.
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*
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* @param $url String, the URL the user is visiting, without the querystring.
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* @uses handleRequest() rule-lookup logic is handled by this.
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* @uses Controller::run() Controller::run() handles the page logic for a Director::direct() call.
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*/
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function direct($url) {
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$req = new HTTPRequest(
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$_SERVER['REQUEST_METHOD'],
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$url,
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$_GET,
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array_merge((array)$_POST, (array)$_FILES),
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@file_get_contents('php://input')
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);
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// @todo find better way to extract HTTP headers
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if(isset($_SERVER['HTTP_ACCEPT'])) $req->addHeader("Accept", $_SERVER['HTTP_ACCEPT']);
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if(isset($_SERVER['CONTENT_TYPE'])) $req->addHeader("Content-Type", $_SERVER['CONTENT_TYPE']);
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// Load the session into the controller
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$session = new Session($_SESSION);
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$result = Director::handleRequest($req, $session);
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$session->inst_save();
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// Return code for a redirection request
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if(is_string($result) && substr($result,0,9) == 'redirect:') {
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$response = new HTTPResponse();
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$response->redirect(substr($result, 9));
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$response->output();
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// Handle a controller
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} else if($result) {
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if($result instanceof HTTPResponse) {
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$response = $result;
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} else {
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$response = new HTTPResponse();
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$response->setBody($result);
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}
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$response->output();
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//$controllerObj->getSession()->inst_save();
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}
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}
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/**
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* Test a URL request, returning a response object.
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*
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* This method is the counterpart of Director::direct() that is used in functional testing. It will execute the URL given,
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*
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* @param string $url The URL to visit
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* @param array $postVars The $_POST & $_FILES variables
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* @param Session $session The {@link Session} object representing the current session. By passing the same object to multiple
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* calls of Director::test(), you can simulate a peristed session.
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* @param string $httpMethod The HTTP method, such as GET or POST. It will default to POST if postVars is set, GET otherwise
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* @param string $body The HTTP body
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* @param array $headers HTTP headers with key-value pairs
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* @return HTTPResponse
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*
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* @uses getControllerForURL() The rule-lookup logic is handled by this.
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* @uses Controller::run() Controller::run() handles the page logic for a Director::direct() call.
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*/
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function test($url, $postVars = null, $session = null, $httpMethod = null, $body = null, $headers = null) {
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if(!$httpMethod) $httpMethod = $postVars ? "POST" : "GET";
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$getVars = array();
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if(strpos($url,'?') !== false) {
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list($url, $getVarsEncoded) = explode('?', $url, 2);
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parse_str($getVarsEncoded, $getVars);
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}
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if(!$session) $session = new Session(null);
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// Back up the current values of the superglobals
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$existingRequestVars = $_REQUEST;
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$existingGetVars = $_GET;
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$existingPostVars = $_POST;
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$existingSessionVars = $_SESSION;
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// Replace the superglobals with appropriate test values
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$_REQUEST = array_merge((array)$getVars, (array)$postVars);
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$_GET = (array)$getVars;
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$_POST = (array)$postVars;
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$_SESSION = $session ? $session->inst_getAll() : array();
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$req = new HTTPRequest($httpMethod, $url, $getVars, $postVars, $body);
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if($headers) foreach($headers as $k => $v) $req->addHeader($k, $v);
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$result = Director::handleRequest($req, $session);
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// Restore the superglobals
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$_REQUEST = $existingRequestVars;
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$_GET = $existingGetVars;
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$_POST = $existingPostVars;
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$_SESSION = $existingSessionVars;
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return $result;
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}
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/**
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* Handle an HTTP request, defined with a HTTPRequest object.
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*
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* @return HTTPResponse|string
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*/
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protected static function handleRequest(HTTPRequest $request, Session $session) {
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krsort(Director::$rules);
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if(isset($_REQUEST['debug'])) Debug::show(Director::$rules);
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foreach(Director::$rules as $priority => $rules) {
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foreach($rules as $pattern => $controllerOptions) {
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if(is_string($controllerOptions)) {
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if(substr($controllerOptions,0,2) == '->') $controllerOptions = array('Redirect' => substr($controllerOptions,2));
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else $controllerOptions = array('Controller' => $controllerOptions);
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}
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if(($arguments = $request->match($pattern, true)) !== false) {
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// controllerOptions provide some default arguments
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$arguments = array_merge($controllerOptions, $arguments);
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// Find the controller name
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if(isset($arguments['Controller'])) $controller = $arguments['Controller'];
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// Pop additional tokens from the tokeniser if necessary
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if(isset($controllerOptions['_PopTokeniser'])) {
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$request->shift($controllerOptions['_PopTokeniser']);
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}
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// Handle redirections
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if(isset($arguments['Redirect'])) {
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return "redirect:" . Director::absoluteURL($arguments['Redirect'], true);
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} else {
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/*
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if(isset($arguments['Action'])) {
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$arguments['Action'] = str_replace('-','',$arguments['Action']);
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}
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if(isset($arguments['Action']) && ClassInfo::exists($controller.'_'.$arguments['Action']))
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$controller = $controller.'_'.$arguments['Action'];
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*/
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if(isset($arguments['URLSegment'])) self::$urlSegment = $arguments['URLSegment'] . "/";
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Director::$urlParams = $arguments;
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$controllerObj = new $controller();
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$controllerObj->setSession($session);
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return $controllerObj->handleRequest($request);
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}
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}
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}
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}
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}
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/**
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* Returns the urlParam with the given name
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*/
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static function urlParam($name) {
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if(isset(Director::$urlParams[$name])) return Director::$urlParams[$name];
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}
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/**
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* Returns an array of urlParams
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*/
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static function urlParams() {
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return Director::$urlParams;
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}
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/**
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* Returns the dataobject of the current page.
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* This will only return a value if you are looking at a SiteTree page
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*/
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static function currentPage() {
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if(isset(Director::$urlParams['URLSegment'])) {
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$SQL_urlSegment = Convert::raw2sql(Director::$urlParams['URLSegment']);
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if (Translatable::is_enabled()) {
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return Translatable::get_one("SiteTree", "URLSegment = '$SQL_urlSegment'");
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} else {
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return DataObject::get_one("SiteTree", "URLSegment = '$SQL_urlSegment'");
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}
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} else {
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return Controller::curr();
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}
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}
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/**
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* Turns the given URL into an absolute URL.
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* @todo Document how relativeToSiteBase works
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*/
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static function absoluteURL($url, $relativeToSiteBase = false) {
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if(strpos($url,'/') === false && !$relativeToSiteBase) $url = dirname($_SERVER['REQUEST_URI'] . 'x') . '/' . $url;
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if(substr($url,0,4) != "http") {
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if($url[0] != "/") $url = Director::baseURL() . $url;
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$url = self::protocolAndHost() . $url;
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}
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return $url;
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}
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/**
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* Returns the part of the URL, 'http://www.mysite.com'.
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*/
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static function protocolAndHost() {
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if(self::$alternateBaseURL) {
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if(preg_match('/^(http[^:]*:\/\/[^\/]+)\//', self::$alternateBaseURL, $matches)) {
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return $matches[1];
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}
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}
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$s = (isset($_SERVER['SSL']) || isset($_SERVER['HTTPS'])) ? 's' : '';
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if(!isset($_SERVER['HTTP_HOST'])) {
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user_error("Director::protocolAndHost() lacks sufficient information - HTTP_HOST not set.", E_USER_WARNING);
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}
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return "http$s://" . $_SERVER['HTTP_HOST'];
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}
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/**
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* Redirect to another page.
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* - $url can be an absolute URL
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* - or it can be a URL relative to the "site base"
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* - if it is just a word without an slashes, then it redirects to another action on the current controller.
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*/
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static function redirect($url, $code=302) {
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Controller::curr()->redirect($url, $code);
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}
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/**
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* Tests whether a redirection has been requested.
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* @return string If redirect() has been called, it will return the URL redirected to. Otherwise, it will return null;
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*/
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static function redirected_to() {
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return Controller::curr()->redirectedTo();
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}
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/**
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* Sets the HTTP status code
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*/
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static function set_status_code($code) {
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return Controller::curr()->getResponse()->setStatusCode($code);
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}
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/**
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* Returns the current HTTP status code
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*/
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static function get_status_code() {
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return Controller::curr()->getResponse()->getStatusCode();
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}
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/*
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* Redirect back
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*
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* Uses either the HTTP_REFERER or a manually set request-variable called
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* _REDIRECT_BACK_URL.
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* This variable is needed in scenarios where not HTTP-Referer is sent (
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* e.g when calling a page by location.href in IE).
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* If none of the two variables is available, it will redirect to the base
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* URL (see {@link baseURL()}).
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*/
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static function redirectBack() {
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$url = self::baseURL();
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if(isset($_REQUEST['_REDIRECT_BACK_URL'])) {
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$url = $_REQUEST['_REDIRECT_BACK_URL'];
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} else if(isset($_SERVER['HTTP_REFERER'])) {
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$url = $_SERVER['HTTP_REFERER'];
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}
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Director::redirect($url);
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}
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/**
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* @deprecated This seems like a bit of a hack; is it used anywhere?
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*/
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static function currentURLSegment() {
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return Director::$urlSegment;
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}
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/**
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* Returns a URL to composed of the given segments - usually controller, action, parameter
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* @deprecated This function has little value. Just craft links yourself.
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*/
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static function link() {
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$parts = func_get_args();
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return Director::baseURL() . implode("/",$parts) . (sizeof($parts) > 2 ? "" : "/");
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}
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/**
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* Returns the root URL for the site.
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* It will be automatically calculated unless it is overridden with {@link setBaseURL()}.
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*/
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static function baseURL() {
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if(self::$alternateBaseURL) return self::$alternateBaseURL;
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else {
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$base = dirname(dirname($_SERVER['SCRIPT_NAME']));
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if($base == '/' || $base == '/.' || $base == '\\') return '/';
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else return $base . '/';
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}
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}
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/**
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* Sets the root URL for the website.
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* If the site isn't accessible from the URL you provide, weird things will happen.
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*/
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static function setBaseURL($baseURL) {
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self::$alternateBaseURL = $baseURL;
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}
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/**
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* Returns the root filesystem folder for the site.
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* It will be automatically calculated unless it is overridden with {@link setBaseFolder()}.
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*/
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static function baseFolder() {
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if(self::$alternateBaseFolder) return self::$alternateBaseFolder;
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else return dirname(dirname($_SERVER['SCRIPT_FILENAME']));
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}
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/**
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* Sets the root folder for the website.
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* If the site isn't accessible from the folder you provide, weird things will happen.
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*/
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static function setBaseFolder($baseFolder) {
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self::$alternateBaseFolder = $baseFolder;
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}
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/**
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* Turns an absolute URL or folder into one that's relative to the root of the site.
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* This is useful when turning a URL into a filesystem reference, or vice versa.
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*/
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static function makeRelative($url) {
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$base1 = self::absoluteBaseURL();
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$base2 = self::baseFolder();
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$base3 = self::baseURL();
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// Allow for the accidental inclusion of a // in the URL
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$url = ereg_replace('([^:])//','\\1/',$url);
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if(substr($url,0,strlen($base1)) == $base1) return substr($url,strlen($base1));
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else if(substr($url,0,strlen($base2)) == $base2) return substr($url,strlen($base2));
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else if(substr($url,0,strlen($base3)) == $base3) return substr($url,strlen($base3));
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return $url;
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}
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/**
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* @deprecated This method's behaviour isn't very useful or consistent.
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*/
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static function getAbsURL($url) {
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return Director::baseURL() . $url;
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}
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/**
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* Given a filesystem reference relative to the site root, return the full file-system path.
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*
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* @param string $file
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* @return string
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*/
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static function getAbsFile($file) {
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if($file[0] == '/') return $file;
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return Director::baseFolder() . '/' . $file;
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}
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/**
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* Returns true if the given file exists.
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* @param $file Filename specified relative to the site root
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*/
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static function fileExists($file) {
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// replace any appended query-strings, e.g. /path/to/foo.php?bar=1 to /path/to/foo.php
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$file = preg_replace('/([^\?]*)?.*/','$1',$file);
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return file_exists(Director::getAbsFile($file));
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}
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/**
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* Returns the Absolute URL of the site root.
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*/
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static function absoluteBaseURL() {
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return Director::absoluteURL(Director::baseURL());
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}
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/**
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* Returns the Absolute URL of the site root, embedding the current basic-auth credentials into the URL.
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*/
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static function absoluteBaseURLWithAuth() {
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$s = "";
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$login = "";
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if(isset($_SERVER['PHP_AUTH_USER'])) $login = "$_SERVER[PHP_AUTH_USER]:$_SERVER[PHP_AUTH_PW]@";
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if(isset($_SERVER['SSL']) && $_SERVER['SSL'] != 'Off') $s = "s";
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return "http$s://" . $login . $_SERVER['HTTP_HOST'] . Director::baseURL();
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}
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/**
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* Force the site to run on SSL. To use, call from _config.php.
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*
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* For example:
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* <code>
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* if(Director::isLive()) Director::forceSSL();
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* </code>
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*/
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static function forceSSL() {
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if(!isset($_SERVER['HTTPS']) && !Director::isDev()) {
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$destURL = str_replace('http:', 'https:', Director::absoluteURL($_SERVER['REQUEST_URI']));
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header("Location: $destURL", true, 301);
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die("<h1>Your browser is not accepting header redirects</h1><p>Please <a href=\"$destURL\">click here</a>");
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}
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}
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/**
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* Force a redirect to a domain starting with "www."
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*/
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static function forceWWW() {
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if(!Director::isDev() && !Director::isTest() && strpos( $_SERVER['SERVER_NAME'], 'www') !== 0 ){
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if( $_SERVER['HTTPS'] )
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$destURL = str_replace('https://','https://www.',Director::absoluteURL($_SERVER['REQUEST_URI']));
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else
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$destURL = str_replace('http://','http://www.',Director::absoluteURL($_SERVER['REQUEST_URI']));
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header("Location: $destURL");
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die("<h1>Your browser is not accepting header redirects</h1><p>Please <a href=\"$destURL\">click here</a>");
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}
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}
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/**
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|
* Checks if the current HTTP-Request is an "Ajax-Request"
|
|
* by checking for a custom header set by prototype.js or
|
|
* wether a manually set request-parameter 'ajax' is present.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
static function is_ajax() {
|
|
if(Controller::has_curr()) {
|
|
return Controller::curr()->isAjax();
|
|
} else {
|
|
return (
|
|
isset($_REQUEST['ajax']) ||
|
|
(isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == "XMLHttpRequest")
|
|
);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns true if this script is being run from the command line rather than the webserver.
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public static function is_cli() {
|
|
return preg_match('/cli-script\.php/', $_SERVER['SCRIPT_NAME']);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Site mode methods
|
|
////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Sets the site mode (if it is the public site or the cms), and runs registered modules.
|
|
*
|
|
* @param string $mode 'site' or 'cms'
|
|
*/
|
|
static function set_site_mode($mode) {
|
|
Director::$siteMode = $mode;
|
|
|
|
if(isset(self::$callbacks[$mode])) {
|
|
foreach(self::$callbacks[$mode] as $extension) {
|
|
call_user_func($extension);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @return string 'site' or 'cms'
|
|
*/
|
|
static function get_site_mode() {
|
|
return Director::$siteMode;
|
|
}
|
|
|
|
/**
|
|
* Allows a module to register with the director to be run once
|
|
* the controller is instantiated. The optional 'mode' parameter
|
|
* can be either 'site' or 'cms', as those are the two values currently
|
|
* set by controllers. The callback function will be run at the
|
|
* initialization of the relevant controller.
|
|
*
|
|
* @param $function string PHP-function array based on http://php.net/call_user_func
|
|
* @param $mode string
|
|
*/
|
|
static function add_callback($function, $mode = 'site') {
|
|
self::$callbacks[$mode][] = $function;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Environment type methods
|
|
////////////////////////////////////////////////////////////////////////////////////////////
|
|
|
|
/**
|
|
* Set the environment type of the current site.
|
|
*
|
|
* Typically, a SilverStripe site have a number of environments:
|
|
* - development environments, such a copy on your local machine.
|
|
* - test sites, such as the one you show the client before going live.
|
|
* - the live site itself.
|
|
*
|
|
* The behaviour of these environments often varies slightly. For example, development sites may have errors dumped to the screen,
|
|
* and order confirmation emails might be sent to the developer instead of the client.
|
|
*
|
|
* To help with this, Sapphire support the notion of an environment type. The environment type can be dev, test, or live.
|
|
*
|
|
* You can set it explicitly with Director::set_environment_tpye(). Or you can use {@link Director::set_dev_servers()} and {@link Director::set_test_servers()}
|
|
* to set it implicitly, based on the value of $_SERVER['HTTP_HOST']. If the HTTP_HOST value is one of the servers listed, then
|
|
* the environment type will be test or dev. Otherwise, the environment type will be live.
|
|
*
|
|
* Dev mode can also be forced by putting ?isDev=1 in your URL, which will ask you to log in and then push the site into dev
|
|
* mode for the remainder of the session. Putting ?isDev=0 onto the URL can turn it back.
|
|
* Generally speaking, these methods will be called from your _config.php file.
|
|
*
|
|
* Once the environment type is set, it can be checked with {@link Director::isDev()}, {@link Director::isTest()}, and
|
|
* {@link Director::isLive()}.
|
|
*
|
|
* @param $et string The environment type: dev, test, or live.
|
|
*/
|
|
static function set_environment_type($et) {
|
|
if($et != 'dev' && $et != 'test' && $et != 'live') {
|
|
Debug::backtrace();
|
|
user_error("Director::set_environment_type passed '$et'. It should be passed dev, test, or live", E_USER_WARNING);
|
|
} else {
|
|
self::$environment_type = $et;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Specify HTTP_HOST values that are development environments.
|
|
* For information about environment types, see {@link Director::set_environment_type()}.
|
|
* @param $servers array An array of HTTP_HOST values that should be treated as development environments.
|
|
*/
|
|
static function set_dev_servers($servers) {
|
|
Director::$dev_servers = $servers;
|
|
}
|
|
|
|
/**
|
|
* Specify HTTP_HOST values that are test environments.
|
|
* For information about environment types, see {@link Director::set_environment_type()}.
|
|
* @param $servers array An array of HTTP_HOST values that should be treated as test environments.
|
|
*/
|
|
static function set_test_servers($servers) {
|
|
Director::$test_servers = $servers;
|
|
}
|
|
|
|
/*
|
|
* This function will return true if the site is in a live environment.
|
|
* For information about environment types, see {@link Director::set_environment_type()}.
|
|
*/
|
|
static function isLive() {
|
|
return !(Director::isDev() || Director::isTest());
|
|
}
|
|
|
|
/**
|
|
* This function will return true if the site is in a development environment.
|
|
* For information about environment types, see {@link Director::set_environment_type()}.
|
|
*/
|
|
static function isDev() {
|
|
if(self::$environment_type) return self::$environment_type == 'dev';
|
|
|
|
// Use ?isDev=1 to get development access on the live server
|
|
if(isset($_GET['isDev'])) {
|
|
if(ClassInfo::ready()) {
|
|
BasicAuth::requireLogin("SilverStripe developer access. Use your CMS login", "ADMIN");
|
|
$_SESSION['isDev'] = $_GET['isDev'];
|
|
} else {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
if(isset($_SESSION['isDev']) && $_SESSION['isDev']) return true;
|
|
|
|
// Check if we are running on one of the development servers
|
|
if(in_array($_SERVER['HTTP_HOST'], Director::$dev_servers)) {
|
|
return true;
|
|
}
|
|
/*
|
|
// Check if we are running on one of the test servers
|
|
if(in_array($_SERVER['HTTP_HOST'], Director::$test_servers)) {
|
|
return true;
|
|
}
|
|
*/
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* This function will return true if the site is in a test environment.
|
|
* For information about environment types, see {@link Director::set_environment_type()}.
|
|
*/
|
|
static function isTest() {
|
|
if(self::$environment_type) {
|
|
return self::$environment_type == 'test';
|
|
}
|
|
|
|
// Check if we are running on one of the test servers
|
|
if(in_array($_SERVER['HTTP_HOST'], Director::$test_servers)) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @deprecated use isDev() instead
|
|
*/
|
|
function isDevMode() {
|
|
user_error('Director::isDevMode() is deprecated. Use Director::isDev() instead.', E_USER_NOTICE);
|
|
return self::isDev();
|
|
}
|
|
|
|
/**
|
|
* @deprecated use isTest() instead
|
|
*/
|
|
function isTestMode() {
|
|
user_error('Director::isTestMode() is deprecated. Use Director::isTest() instead.', E_USER_NOTICE);
|
|
return self::isTest();
|
|
}
|
|
|
|
/**
|
|
* @deprecated use isLive() instead
|
|
*/
|
|
function isLiveMode() {
|
|
user_error('Director::isLiveMode() is deprecated. Use Director::isLive() instead.', E_USER_NOTICE);
|
|
return self::isLive();
|
|
}
|
|
|
|
}
|
|
|
|
?>
|