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PhabricatorFileDropUploadController.php
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Fri, Nov 29, 16:25

PhabricatorFileDropUploadController.php
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<?php
final class PhabricatorFileDropUploadController
extends PhabricatorFileController {
public function shouldAllowRestrictedParameter($parameter_name) {
// Prevent false positives from file content when it is submitted via
// drag-and-drop upload.
return true;
}
/**
* @phutil-external-symbol class PhabricatorStartup
*/
public function handleRequest(AphrontRequest $request) {
$viewer = $request->getViewer();
// NOTE: Throws if valid CSRF token is not present in the request.
$request->validateCSRF();
$name = $request->getStr('name');
$file_phid = $request->getStr('phid');
// If there's no explicit view policy, make it very restrictive by default.
// This is the correct policy for files dropped onto objects during
// creation, comment and edit flows.
$view_policy = $request->getStr('viewPolicy');
if (!$view_policy) {
$view_policy = $viewer->getPHID();
}
$is_chunks = $request->getBool('querychunks');
if ($is_chunks) {
$params = array(
'filePHID' => $file_phid,
);
$result = id(new ConduitCall('file.querychunks', $params))
->setUser($viewer)
->execute();
return id(new AphrontAjaxResponse())->setContent($result);
}
$is_allocate = $request->getBool('allocate');
if ($is_allocate) {
$params = array(
'name' => $name,
'contentLength' => $request->getInt('length'),
'viewPolicy' => $view_policy,
);
$result = id(new ConduitCall('file.allocate', $params))
->setUser($viewer)
->execute();
$file_phid = $result['filePHID'];
if ($file_phid) {
$file = $this->loadFile($file_phid);
$result += $file->getDragAndDropDictionary();
}
return id(new AphrontAjaxResponse())->setContent($result);
}
// Read the raw request data. We're either doing a chunk upload or a
// vanilla upload, so we need it.
$data = PhabricatorStartup::getRawInput();
$is_chunk_upload = $request->getBool('uploadchunk');
if ($is_chunk_upload) {
$params = array(
'filePHID' => $file_phid,
'byteStart' => $request->getInt('byteStart'),
'data' => $data,
);
$result = id(new ConduitCall('file.uploadchunk', $params))
->setUser($viewer)
->execute();
$file = $this->loadFile($file_phid);
if ($file->getIsPartial()) {
$result = array();
} else {
$result = array(
'complete' => true,
) + $file->getDragAndDropDictionary();
}
return id(new AphrontAjaxResponse())->setContent($result);
}
$file = PhabricatorFile::newFromXHRUpload(
$data,
array(
'name' => $request->getStr('name'),
'authorPHID' => $viewer->getPHID(),
'viewPolicy' => $view_policy,
'isExplicitUpload' => true,
));
$result = $file->getDragAndDropDictionary();
return id(new AphrontAjaxResponse())->setContent($result);
}
private function loadFile($file_phid) {
$viewer = $this->getViewer();
$file = id(new PhabricatorFileQuery())
->setViewer($viewer)
->withPHIDs(array($file_phid))
->executeOne();
if (!$file) {
throw new Exception(pht('Failed to load file.'));
}
return $file;
}
}

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