protected function execute(ConduitAPIRequest $request)
{
$viewer = $request->getUser();
$hash = $request->getValue('contentHash');
$name = $request->getValue('name');
$view_policy = $request->getValue('viewPolicy');
$length = $request->getValue('contentLength');
$properties = array('name' => $name, 'authorPHID' => $viewer->getPHID(), 'viewPolicy' => $view_policy, 'isExplicitUpload' => true);
$ttl = $request->getValue('deleteAfterEpoch');
if ($ttl) {
$properties['ttl'] = $ttl;
}
$file = null;
if ($hash) {
$file = PhabricatorFile::newFileFromContentHash($hash, $properties);
}
if ($hash && !$file) {
$chunked_hash = PhabricatorChunkedFileStorageEngine::getChunkedHash($viewer, $hash);
$file = id(new PhabricatorFileQuery())->setViewer($viewer)->withContentHashes(array($chunked_hash))->executeOne();
}
if (strlen($name) && !$hash && !$file) {
if ($length > PhabricatorFileStorageEngine::getChunkThreshold()) {
// If we don't have a hash, but this file is large enough to store in
// chunks and thus may be resumable, try to find a partially uploaded
// file by the same author with the same name and same length. This
// allows us to resume uploads in Javascript where we can't efficiently
// compute file hashes.
$file = id(new PhabricatorFileQuery())->setViewer($viewer)->withAuthorPHIDs(array($viewer->getPHID()))->withNames(array($name))->withLengthBetween($length, $length)->withIsPartial(true)->setLimit(1)->executeOne();
}
}
if ($file) {
return array('upload' => (bool) $file->getIsPartial(), 'filePHID' => $file->getPHID());
}
// If there are any non-chunk engines which this file can fit into,
// just tell the client to upload the file.
$engines = PhabricatorFileStorageEngine::loadStorageEngines($length);
if ($engines) {
return array('upload' => true, 'filePHID' => null);
}
// Otherwise, this is a large file and we want to perform a chunked
// upload if we have a chunk engine available.
$chunk_engines = PhabricatorFileStorageEngine::loadWritableChunkEngines();
if ($chunk_engines) {
$chunk_properties = $properties;
if ($hash) {
$chunk_properties += array('chunkedHash' => $chunked_hash);
}
$chunk_engine = head($chunk_engines);
$file = $chunk_engine->allocateChunks($length, $chunk_properties);
return array('upload' => true, 'filePHID' => $file->getPHID());
}
// None of the storage engines can accept this file.
if (PhabricatorFileStorageEngine::loadWritableEngines()) {
$error = pht('Unable to upload file: this file is too large for any ' . 'configured storage engine.');
} else {
$error = pht('Unable to upload file: the server is not configured with any ' . 'writable storage engines.');
}
return array('upload' => false, 'filePHID' => null, 'error' => $error);
}
public static function newChunkedFile(PhabricatorFileStorageEngine $engine, $length, array $params)
{
$file = self::initializeNewFile();
$file->setByteSize($length);
// TODO: We might be able to test the first chunk in order to figure
// this out more reliably, since MIME detection usually examines headers.
// However, enormous files are probably always either actually raw data
// or reasonable to treat like raw data.
$file->setMimeType('application/octet-stream');
$chunked_hash = idx($params, 'chunkedHash');
if ($chunked_hash) {
$file->setContentHash($chunked_hash);
} else {
// See PhabricatorChunkedFileStorageEngine::getChunkedHash() for some
// discussion of this.
$seed = Filesystem::readRandomBytes(64);
$hash = PhabricatorChunkedFileStorageEngine::getChunkedHashForInput($seed);
$file->setContentHash($hash);
}
$file->setStorageEngine($engine->getEngineIdentifier());
$file->setStorageHandle(PhabricatorFileChunk::newChunkHandle());
$file->setStorageFormat(self::STORAGE_FORMAT_RAW);
$file->setIsPartial(1);
$file->readPropertiesFromParameters($params);
return $file;
}
public static function newChunkedFile(PhabricatorFileStorageEngine $engine, $length, array $params)
{
$file = self::initializeNewFile();
$file->setByteSize($length);
// NOTE: Once we receive the first chunk, we'll detect its MIME type and
// update the parent file. This matters for large media files like video.
$file->setMimeType('application/octet-stream');
$chunked_hash = idx($params, 'chunkedHash');
if ($chunked_hash) {
$file->setContentHash($chunked_hash);
} else {
// See PhabricatorChunkedFileStorageEngine::getChunkedHash() for some
// discussion of this.
$seed = Filesystem::readRandomBytes(64);
$hash = PhabricatorChunkedFileStorageEngine::getChunkedHashForInput($seed);
$file->setContentHash($hash);
}
$file->setStorageEngine($engine->getEngineIdentifier());
$file->setStorageHandle(PhabricatorFileChunk::newChunkHandle());
// Chunked files are always stored raw because they do not actually store
// data. The chunks do, and can be individually formatted.
$file->setStorageFormat(PhabricatorFileRawStorageFormat::FORMATKEY);
$file->setIsPartial(1);
$file->readPropertiesFromParameters($params);
return $file;
}
