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CelerityResourceController.php
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Mon, Dec 30, 23:42

CelerityResourceController.php
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<?php
abstract class CelerityResourceController extends PhabricatorController {
protected function buildResourceTransformer() {
return null;
}
public function shouldRequireLogin() {
return false;
}
public function shouldRequireEnabledUser() {
return false;
}
abstract public function getCelerityResourceMap();
protected function serveResource($path, $package_hash = null) {
// Sanity checking to keep this from exposing anything sensitive, since it
// ultimately boils down to disk reads.
if (preg_match('@(//|\.\.)@', $path)) {
return new Aphront400Response();
}
$type = CelerityResourceTransformer::getResourceType($path);
$type_map = $this->getSupportedResourceTypes();
if (empty($type_map[$type])) {
throw new Exception("Only static resources may be served.");
}
if (AphrontRequest::getHTTPHeader('If-Modified-Since') &&
!PhabricatorEnv::getEnvConfig('phabricator.developer-mode')) {
// Return a "304 Not Modified". We don't care about the value of this
// field since we never change what resource is served by a given URI.
return $this->makeResponseCacheable(new Aphront304Response());
}
$map = $this->getCelerityResourceMap();
if ($map->isPackageResource($path)) {
$resource_names = $map->getResourceNamesForPackageName($path);
if (!$resource_names) {
return new Aphront404Response();
}
try {
$data = array();
foreach ($resource_names as $resource_name) {
$data[] = $map->getResourceDataForName($resource_name);
}
$data = implode("\n\n", $data);
} catch (Exception $ex) {
return new Aphront404Response();
}
} else {
try {
$data = $map->getResourceDataForName($path);
} catch (Exception $ex) {
return new Aphront404Response();
}
}
$xformer = $this->buildResourceTransformer();
if ($xformer) {
$data = $xformer->transformResource($path, $data);
}
$response = new AphrontFileResponse();
$response->setContent($data);
$response->setMimeType($type_map[$type]);
// NOTE: This is a piece of magic required to make WOFF fonts work in
// Firefox. Possibly we should generalize this.
if ($type == 'woff') {
// We could be more tailored here, but it's not currently trivial to
// generate a comprehensive list of valid origins (an install may have
// arbitrarily many Phame blogs, for example), and we lose nothing by
// allowing access from anywhere.
$response->addAllowOrigin("*");
}
return $this->makeResponseCacheable($response);
}
protected function getSupportedResourceTypes() {
return array(
'css' => 'text/css; charset=utf-8',
'js' => 'text/javascript; charset=utf-8',
'png' => 'image/png',
'gif' => 'image/gif',
'jpg' => 'image/jpeg',
'swf' => 'application/x-shockwave-flash',
'woff' => 'font/woff',
);
}
private function makeResponseCacheable(AphrontResponse $response) {
$response->setCacheDurationInSeconds(60 * 60 * 24 * 30);
$response->setLastModified(time());
return $response;
}
}

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