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<?php
/*
 * Spring Signage Ltd - http://www.springsignage.com
 * Copyright (C) 2015 Spring Signage Ltd
 * (Error.php)
 */

namespace Xibo\Controller;

use League\OAuth2\Server\Exception\OAuthException;
use Xibo\Exception\AccessDeniedException;
use Xibo\Exception\ConfigurationException;
use Xibo\Exception\FormExpiredException;
use Xibo\Exception\InstanceSuspendedException;
use Xibo\Exception\TokenExpiredException;
use Xibo\Exception\UpgradePendingException;
use Xibo\Helper\Translate;
use Xibo\Service\ConfigServiceInterface;
use Xibo\Service\DateServiceInterface;
use Xibo\Service\LogServiceInterface;
use Xibo\Service\SanitizerServiceInterface;

/**
 * Class Error
 * @package Xibo\Controller
 */
class Error extends Base
{
    /**
     * Set common dependencies.
     * @param LogServiceInterface $log
     * @param SanitizerServiceInterface $sanitizerService
     * @param \Xibo\Helper\ApplicationState $state
     * @param \Xibo\Entity\User $user
     * @param \Xibo\Service\HelpServiceInterface $help
     * @param DateServiceInterface $date
     * @param ConfigServiceInterface $config
     */
    public function __construct($log, $sanitizerService, $state, $user, $help, $date, $config)
    {
        $this->setCommonDependencies($log, $sanitizerService, $state, $user, $help, $date, $config);
    }

/**
     * @throws ConfigurationException
     * @throws \Slim\Exception\Stop
     * @throws \Xibo\Exception\ControllerNotImplemented
     */
    public function notFound()
    {
        $app = $this->getApp();

// Not found controller happens outside the normal middleware stack for some reason
        // Setup the translations for gettext
        Translate::InitLocale($this->getConfig());

// Configure the locale for date/time
        if (Translate::GetLocale(2) != '')
            $this->getDate()->setLocale(Translate::GetLocale(2));
        
        $this->getLog()->debug('Page Not Found. %s', $app->request()->getResourceUri());

$message = __('Page not found');

// Different action depending on the app name
        switch ($app->getName()) {

case 'web':

// Set up theme
                \Xibo\Middleware\Theme::setTheme($app);

if ($app->request()->isAjax()) {
                    $this->getState()->hydrate([
                        'success' => false,
                        'message' => $message,
                        'template' => ''
                    ]);
                }
                else {
                    $app->flashNow('globalError', $message);
                    $this->getState()->template = 'not-found';
                }

$this->render();

break;

case 'auth':
            case 'api':
            case 'test':

$this->getState()->hydrate([
                    'httpStatus' => 404,
                    'success' => false,
                    'message' => $message
                ]);

$this->render();

break;

case 'console':
            case 'maint':

// Render the error page.
                echo $message;

$app->stop();
                break;
        }
    }

/**
     * @param \Exception $e
     * @throws ConfigurationException
     * @throws \Slim\Exception\Stop
     * @throws \Xibo\Exception\ControllerNotImplemented
     */
    public function handler(\Exception $e)
    {
        $app = $this->getApp();
        $handled = $this->handledError($e);
        $app->commit = false;

if ($handled) {
            $this->getLog()->debug($e->getMessage() . $e->getTraceAsString());
        }
        else {
            // Log the full error
            $this->getLog()->debug($e->getMessage() . $e->getTraceAsString());
            $this->getLog()->error($e->getMessage() . ' Exception Type: ' . get_class($e));
        }

// Different action depending on the app name
        switch ($app->getName()) {

case 'web':

$message = ($handled) ? $e->getMessage() : __('Unexpected Error, please contact support.');

if ($app->request()->isAjax()) {
                    $this->getState()->hydrate([
                        'success' => false,
                        'message' => $message,
                        'template' => ''
                    ]);
                }
                else {
                    // Template depending on whether one exists for the type of exception
                    // get the exception class
                    $exceptionClass = 'error-' . strtolower(str_replace('\\', '-', get_class($e)));

// An upgrade might be pending
                    if ($e instanceof AccessDeniedException && $this->getConfig()->isUpgradePending())
                        $exceptionClass = 'upgrade-in-progress-page';

if (file_exists(PROJECT_ROOT . '/views/' . $exceptionClass . '.twig'))
                        $this->getState()->template = $exceptionClass;
                    else
                        $this->getState()->template = 'error';

$app->flashNow('globalError', $message);
                }

$this->render();

break;

case 'auth':
            case 'api':

$status = 500;

if ($e instanceof OAuthException) {
                    $status = $e->httpStatusCode;

foreach ($e->getHttpHeaders() as $header) {
                        $app->response()->header($header);
                    }
                }
                else if ($e instanceof \InvalidArgumentException) {
                    $status = 422;
                }
                else if (property_exists(get_class($e), 'httpStatusCode')) {
                    $status = $e->httpStatusCode;
                }

$this->getState()->hydrate([
                    'httpStatus' => $status,
                    'success' => false,
                    'message' => (($handled) ? __($e->getMessage()) : __('Unexpected Error, please contact support.')),
                    'data' => (method_exists($e, 'getErrorData')) ? $e->getErrorData() : []
                ]);

$this->render();

break;

case 'console':
            case 'maint':

// Render the error page.
                if ($handled) {
                    echo $e->getMessage();
                }
                else
                    echo __('Unknown Error');

$app->stop();
                break;
        }
    }

/**
     * Determine if we are a handled exception
     * @param $e
     * @return bool
     */
    private function handledError($e)
    {
        if (method_exists($e, 'handledException'))
            return $e->handledException();

return ($e instanceof \InvalidArgumentException
            || $e instanceof OAuthException
            || $e instanceof FormExpiredException
            || $e instanceof AccessDeniedException
            || $e instanceof InstanceSuspendedException
            || $e instanceof UpgradePendingException
            || $e instanceof TokenExpiredException
        );
    }
}