function renderer_json($mode)
{
if (strtolower($mode) == 'administration') {
throw new Lib\Exceptions\InvalidModeException('JSON Renderer launcher is only available on the frontend');
}
$renderer = Frontend::instance();
// Check if we should enable exception debug information
$exceptionDebugEnabled = Symphony::isLoggedIn();
// Use the JSON exception and error handlers instead of the Symphony one.
Lib\ExceptionHandler::initialise($exceptionDebugEnabled);
Lib\ErrorHandler::initialise($exceptionDebugEnabled);
// #1808
if (isset($_SERVER['HTTP_MOD_REWRITE'])) {
throw new Exception("mod_rewrite is required, however is not enabled.");
}
$output = $renderer->display(getCurrentPage());
cleanup_session_cookies();
if (in_array('JSON', Frontend::Page()->pageData()['type'])) {
// Load the output into a SimpleXML Container and convert to JSON
try {
$xml = new SimpleXMLElement($output, LIBXML_NOCDATA);
// Convert the XML to a plain array. This step is necessary as we cannot
// use JSON_PRETTY_PRINT directly on a SimpleXMLElement object
$outputArray = json_decode(json_encode($xml), true);
// Get the transforer object ready. Other extensions will
// add their transormations to this.
$transformer = new Lib\Transformer();
/**
* Allow other extensions to add their own transformers
*/
Symphony::ExtensionManager()->notifyMembers('APIFrameworkJSONRendererAppendTransformations', '/frontend/', ['transformer' => &$transformer]);
// Apply transformations
$outputArray = $transformer->run($outputArray);
// Now put the array through a json_encode
$output = json_encode($outputArray, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES);
} catch (\Exception $e) {
// This happened because the input was not valid XML. This could
// occur for a few reasons, but there are two scenarios
// we are interested in.
// 1) This is a devkit page (profile, debug etc). We want the data
// to be passed through and displayed rather than converted into
// JSON. There is no easy way in Symphony to tell if a devkit has
// control over the page, so instead lets inspect the output for
// any signs a devkit is rendering the page.
// 2) It is actually bad XML. In that case we need to let the error
// bubble through.
// Currently the easiest method is to check for the devkit.min.css
// in the output. This may fail in the furture if this file is
// renamed or moved.
if (!preg_match("@\\/symphony\\/assets\\/css\\/devkit.min.css@", $output)) {
throw $e;
}
}
}
echo $output;
return $renderer;
}
/**
* @depends testValidCreateTransformation
*/
public function testAppendTransformation(Lib\Transformation $t)
{
$transformer = new Lib\Transformer();
$this->assertTrue($transformer->append($t) instanceof Lib\Transformer);
$this->assertEquals(count($transformer->transformations()), 1);
}
