static function execute()
{
// Fixes for different platforms:
if (isset($_SERVER['HTTP_X_REWRITE_URL'])) {
// ISAPI 3.0
$_SERVER['REQUEST_URI'] = $_SERVER['HTTP_X_REWRITE_URL'];
}
// Define a constant
if (!defined('PIE_CONTROLLER')) {
define('PIE_CONTROLLER', 'Pie_ActionController');
}
try {
$parts = explode('/', Pie_Request::tail());
$parts_len = count($parts);
if ($parts_len >= 1) {
$module = $parts[0];
}
if ($parts_len >= 2) {
$action = $parts[1];
}
// Make sure the 'pie'/'web' config fields are set,
// otherwise URLs will be formed pointing to the wrong
// controller script.
$ar = Pie_Config::get('pie', 'web', 'appRootUrl', null);
if (!isset($ar)) {
throw new Pie_Exception_MissingConfig(array('fieldpath' => 'pie/web/appRootUrl'));
}
$cs = Pie_Config::get('pie', 'web', 'controllerSuffix', null);
if (!isset($cs)) {
throw new Pie_Exception_MissingConfig(array('fieldpath' => 'pie/web/controllerSuffix'));
}
// Dispatch the request
$uri = Pie_Uri::from(compact('module', 'action'));
Pie_Dispatcher::dispatch($uri);
$dispatch_result = Pie_Dispatcher::result();
if (!isset($dispatch_result)) {
$dispatch_result = 'Ran dispatcher';
}
$uri = Pie_Dispatcher::uri();
$module = $uri->module;
$action = $uri->action;
if ($module and $action) {
$slot_names = Pie_Request::slotNames();
$requested_slots = empty($slot_names) ? '' : implode(',', array_keys($slot_names));
Pie::log("~" . ceil(Pie::microtime()) . 'ms+' . ceil(memory_get_peak_usage() / 1000) . 'kb.' . " {$dispatch_result} for {$module}/{$action}" . " ({$requested_slots})");
} else {
Pie::log("~" . ceil(Pie::microtime()) . 'ms+' . ceil(memory_get_peak_usage() / 1000) . 'kb.' . " No route for " . $_SERVER['REQUEST_URI']);
}
} catch (Exception $exception) {
Pie::event('pie/exception', compact('exception'));
}
}
/**
* The default implementation.
*/
function pie_errors($params)
{
extract($params);
/**
* @var Exception $exception
*/
if (!empty($exception)) {
Pie_Response::addError($exception);
$errors = Pie_Response::getErrors();
}
$errors_array = Pie_Exception::toArray($errors);
$exception_array = Pie_Exception::toArray($exception);
// Simply return the errors, if this was an AJAX request
if ($is_ajax = Pie_Request::isAjax()) {
switch (strtolower($is_ajax)) {
case 'json':
default:
$json = json_encode(array('errors' => $errors_array, 'exception' => $exception_array));
$callback = Pie_Request::callback();
echo $callback ? "{$callback}({$json})" : $json;
}
return;
}
// Forward internally, if it was requested
if (isset($_REQUEST['_pie']['onErrors'])) {
$uri = Pie_Dispatcher::uri();
$uri2 = Pie_Uri::from($_REQUEST['_pie']['onErrors']);
if ($uri !== $uri2) {
Pie_Dispatcher::forward($uri2);
return;
// we don't really need this, but it's here anyway
}
}
if (Pie::eventStack('pie/response')) {
// Errors happened while rendering response. Just render errors view.
return Pie::view('pie/errors.php', $params);
}
try {
// Try rendering the response, expecting it to
// display the errors along with the rest.
$ob = new Pie_OutputBuffer();
Pie::event('pie/response', compact('errors', 'exception', 'errors_array', 'exception_array'));
$ob->endFlush();
} catch (Exception $exception) {
$output = $ob->getClean();
return Pie::event('pie/exception', compact('exception'));
}
}
static function uri()
{
if (!isset(self::$uri)) {
self::$uri = Pie_Uri::from(self::url());
}
return self::$uri;
}
/**
* Dispatches a URI for internal processing.
* Usually called by a front controller.
* @param mixed $uri
* Optional. You can pass a custom URI to dispatch. Otherwise, PIE will attempt
* to route the requested URL, if any.
* @param array $check
* Optional. Pass array() to skip checking whether the URI can be obtained
* as a result of routing some URL.
* @return boolean
*/
static function dispatch($uri = null, $check = array('accessible'))
{
if (!is_array($check)) {
$check = array('accessible');
}
if (isset($uri)) {
if (in_array('accessible', $check)) {
if (!Pie_Uri::url($uri)) {
// We shouldn't dispatch to this URI
$uri = Pie_Uri::from(array());
}
}
self::$uri = Pie_Uri::from($uri);
} else {
self::$uri = Pie_Request::uri();
}
// if file or dir is requested, try to serve it
$served = false;
$skip = Pie_Config::get('pie', 'dispatcherSkipFilename', false);
$filename = $skip ? false : Pie_Request::filename();
if ($filename) {
if (is_dir($filename)) {
$served = Pie::event("pie/dir", compact('filename', 'routed_uri'));
$dir_was_served = true;
} else {
$served = Pie::event("pie/file", compact('filename', 'routed_uri'));
$dir_was_served = false;
}
}
// if response was served, then return
if ($served) {
self::result($dir_was_served ? "Dir served" : "File served");
return true;
}
// This loop is for forwarding
$max_forwards = Pie_Config::get('pie', 'maxForwards', 10);
for ($try = 0; $try < $max_forwards; ++$try) {
// Make an array from the routed URI
$routed_uri_array = array();
if (self::$uri instanceof Pie_Uri) {
$routed_uri_array = self::$uri->toArray();
}
// If no module was found, then respond with noModule and return
if (!isset(self::$uri->module)) {
Pie::event("pie/noModule", $routed_uri_array);
// should echo things
self::result("No module");
return false;
}
$module = self::$uri->module;
// Implement restricting of modules we are allowed to access
$routed_modules = Pie_Config::get('pie', 'routedModules', null);
if (isset($routed_modules)) {
if (!in_array($module, $routed_modules)) {
Pie::event('pie/notFound', $routed_uri_array);
// should echo things
self::result("Unknown module");
return false;
}
} else {
if (!Pie::realPath("handlers/{$module}")) {
Pie::event('pie/notFound', $routed_uri_array);
// should echo things
self::result("Unknown module");
return false;
}
}
try {
// Fire a pure event, for aggregation etc
if (!in_array('pie/prepare', self::$skip)) {
Pie::event('pie/prepare', $routed_uri_array, true);
}
// Perform validation
if (!in_array('pie/validate', self::$skip)) {
Pie::event('pie/validate', $routed_uri_array);
// Check if any errors accumulated
if (Pie_Response::getErrors()) {
// There were validation errors -- render a response
self::errors(null, $module, null);
self::result('Validation errors');
return false;
}
}
// Time to instantiate some app objects from the request
if (!in_array('pie/objects', self::$skip)) {
Pie::event('pie/objects', $routed_uri_array, true);
}
// We might want to reroute the request
if (!in_array('pie/reroute', self::$skip)) {
$stop_dispatch = Pie::event('pie/reroute', $routed_uri_array, true);
if ($stop_dispatch) {
self::result("Stopped dispatch");
return false;
}
}
if (Pie_Request::isPost()) {
if (!in_array('pie/post', self::$skip)) {
// Make some changes to server state, possibly
Pie::event('pie/post', $routed_uri_array);
}
}
// Time to instantiate some app objects from the request
if (!in_array('pie/analytics', self::$skip)) {
Pie::event('pie/analytics', $routed_uri_array, true);
}
// Start buffering the response, unless otherwise requested
if ($handler = Pie_Response::isBuffered()) {
$ob = new Pie_OutputBuffer($handler);
}
// Generate and render a response
Pie::event("pie/response", $routed_uri_array);
if (!empty($ob)) {
$ob->endFlush();
}
self::result("Served response");
return true;
} catch (Pie_Exception_DispatcherForward $e) {
// Go again, this time with a different URI.
self::$uri = Pie_Uri::from($e->uri);
if (is_array($e->skip)) {
self::$skip = $e->skip;
} else {
// Don't process the POST fields this time around
self::$skip = array('pie/post');
}
// We'll be handling errors anew
self::$handling_errors = false;
} catch (Pie_Exception_DispatcherErrors $e) {
if (!empty($ob)) {
$partial_response = $ob->getClean();
} else {
$partial_response = null;
}
self::errors(null, $module, $partial_response);
self::result("Rendered errors");
return true;
} catch (Exception $exception) {
if (!empty($ob)) {
$partial_response = $ob->getClean();
} else {
$partial_response = null;
}
self::errors($exception, $module, $partial_response);
self::result("Exception occurred");
return false;
}
}
// If we are here, we have done forwarding too much
throw new Pie_Exception_Recursion(array('function_name' => 'Dispatcher::forward()'));
}
