public function testRandomString()
{
$re = '|^[A-Za-z][A-Za-z0-9]*$|';
$this->assertTrue(preg_match($re, $s = FWU::randomString()));
$this->assertEqual(strlen($s), 40);
$this->assertTrue(preg_match($re, $s = FWU::randomString(1)));
$this->assertEqual(strlen($s), 1);
}
private static function _parse($content)
{
// create DOMDocument instance
$dom = new DOMDocument();
if (!$dom->loadXML('<root>' . $content . '</root>')) {
throw new Exception('menu plugin: PHP DOM couldn\'t parse menu XML.');
}
$dom->normalizeDocument();
// process <a> elements
$dom_links = $dom->getElementsByTagName('a');
$links = array();
foreach ($dom_links as $dom_link) {
// get `l' attribute
if ($dom_link->hasAttribute('l')) {
$link_id = trim($dom_link->getAttribute('l'));
if (!$link_id) {
throw new Exception('menu plugin: link id cannot be empty.');
}
$dom_link->removeAttribute('l');
} else {
$link_id = null;
}
// add placeholders
$placeholders = array();
$placeholders['class'] = '--' . FWU::randomString() . '--';
if ($dom_link->hasAttribute('class')) {
$dom_link->setAttribute('class', trim($dom_link->getAttribute('class') . ' ' . $placeholders['class']));
} else {
$dom_link->setAttribute('class', $placeholders['class']);
}
if (!$dom_link->hasAttribute('id')) {
$placeholders['id'] = '--' . FWU::randomString() . '--';
$dom_link->setAttribute('id', $placeholders['id']);
} else {
$placeholders['id'] = null;
}
// add to $links array
$links[] = array('id' => $link_id, 'placeholders' => $placeholders);
}
// done
return array('links' => $links, 'html' => preg_replace('|^\\s*<\\?xml version="1.0"\\?>\\s*<root>(.*)</root>\\s*$|s', '$1', $dom->saveXML()));
}
/**
* Dispatch request
*
* @param string|array $url
* @return void
*/
public function dispatch($url)
{
assert('is_string($url) || is_array($url)');
// check recursion
static $dispatch_count = 0;
if ($dispatch_count >= 50) {
throw new FWException('FWRequest->dispatch: Too much recursion. (loop?)');
}
++$dispatch_count;
// get router
$router = $this->getRouter();
if (!$router) {
throw new FWException('Please FWRouter->setRouter() first.');
}
try {
// route url
if (is_string($url)) {
$route = $router->route($url);
if (!$route) {
$this->forward404();
}
if (!isset($route['controller']) || !isset($route['action'])) {
$this->forward404();
}
} else {
$route = $url;
}
// validate controller and action names
$controller = FWU::underscoresToCamelcase($route['controller']);
$action = FWU::underscoresToCamelcase($route['action']);
$controller_re = '|^[A-Za-z][A-Za-z0-9]*$|';
$action_re = '|^[A-Za-z0-9]+$|';
if (!preg_match($controller_re, $controller) || !preg_match($action_re, $action)) {
$this->forward404();
}
// controller exists?
$controller_class = $controller . 'Controller';
$controller_file = APP_DIR . '/controllers/' . $controller_class . '.class.php';
if (!is_file($controller_file)) {
$this->forward404();
}
require_once $controller_file;
if (!class_exists($controller_class)) {
$this->forward404();
}
// action exists?
$action_method = 'execute' . $action;
if (!method_exists($controller_class, $action_method)) {
$this->forward404();
}
// set parameters
$this->flushParameters();
$this->addParameters($route);
$this->addParameters($_GET);
$this->addParameters($_POST);
// call action
$obj = new $controller_class();
$obj->setRequest($this);
$this->forward404Unless($obj->dispatch($action));
} catch (FWForwardException $e) {
$this->dispatch($e->parameters);
}
}
