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FileUploadChunkConduitAPIMethod.php
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Sun, Jan 5, 17:28

FileUploadChunkConduitAPIMethod.php
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<?php
final class FileUploadChunkConduitAPIMethod
extends FileConduitAPIMethod {
public function getAPIMethodName() {
return 'file.uploadchunk';
}
public function getMethodDescription() {
return pht('Upload a chunk of file data to the server.');
}
protected function defineParamTypes() {
return array(
'filePHID' => 'phid',
'byteStart' => 'int',
'data' => 'string',
'dataEncoding' => 'string',
);
}
protected function defineReturnType() {
return 'void';
}
protected function execute(ConduitAPIRequest $request) {
$viewer = $request->getUser();
$file_phid = $request->getValue('filePHID');
$file = $this->loadFileByPHID($viewer, $file_phid);
$start = $request->getValue('byteStart');
$data = $request->getValue('data');
$encoding = $request->getValue('dataEncoding');
switch ($encoding) {
case 'base64':
$data = $this->decodeBase64($data);
break;
case null:
break;
default:
throw new Exception(pht('Unsupported data encoding.'));
}
$length = strlen($data);
$chunk = $this->loadFileChunkForUpload(
$viewer,
$file,
$start,
$start + $length);
// If this is the initial chunk, leave the MIME type unset so we detect
// it and can update the parent file. If this is any other chunk, it has
// no meaningful MIME type. Provide a default type so we can avoid writing
// it to disk to perform MIME type detection.
if (!$start) {
$mime_type = null;
} else {
$mime_type = 'application/octet-stream';
}
$params = array(
'name' => $file->getMonogram().'.chunk-'.$chunk->getID(),
'viewPolicy' => PhabricatorPolicies::POLICY_NOONE,
'chunk' => true,
);
if ($mime_type !== null) {
$params['mime-type'] = 'application/octet-stream';
}
// NOTE: These files have a view policy which prevents normal access. They
// are only accessed through the storage engine.
$chunk_data = PhabricatorFile::newFromFileData(
$data,
$params);
$chunk->setDataFilePHID($chunk_data->getPHID())->save();
$needs_update = false;
$missing = $this->loadAnyMissingChunk($viewer, $file);
if (!$missing) {
$file->setIsPartial(0);
$needs_update = true;
}
if (!$start) {
$file->setMimeType($chunk_data->getMimeType());
$needs_update = true;
}
if ($needs_update) {
$file->save();
}
return null;
}
}

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