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phab/src/applications/files/conduit/FileAllocateConduitAPIMethod.php
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FileAllocateConduitAPIMethod.php
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<?php
final class FileAllocateConduitAPIMethod
extends FileConduitAPIMethod {
public function getAPIMethodName() {
return 'file.allocate';
}
public function getMethodDescription() {
return pht('Prepare to upload a file.');
}
public function defineParamTypes() {
return array(
'name' => 'string',
'contentLength' => 'int',
'contentHash' => 'optional string',
'viewPolicy' => 'optional string',
// TODO: Remove this, it's just here to make testing easier.
'forceChunking' => 'optional bool',
);
}
public function defineReturnType() {
return 'map<string, wild>';
}
public function defineErrorTypes() {
return array();
}
protected function execute(ConduitAPIRequest $request) {
$viewer = $request->getUser();
$hash = $request->getValue('contentHash');
$name = $request->getValue('name');
$view_policy = $request->getValue('viewPolicy');
$content_length = $request->getValue('contentLength');
$force_chunking = $request->getValue('forceChunking');
$properties = array(
'name' => $name,
'authorPHID' => $viewer->getPHID(),
'viewPolicy' => $view_policy,
'isExplicitUpload' => true,
);
if ($hash) {
$file = PhabricatorFile::newFileFromContentHash(
$hash,
$properties);
if ($file) {
return array(
'upload' => false,
'filePHID' => $file->getPHID(),
);
}
$chunked_hash = PhabricatorChunkedFileStorageEngine::getChunkedHash(
$viewer,
$hash);
$file = id(new PhabricatorFileQuery())
->setViewer($viewer)
->withContentHashes(array($chunked_hash))
->executeOne();
if ($file) {
return array(
'upload' => (bool)$file->getIsPartial(),
'filePHID' => $file->getPHID(),
);
}
}
$engines = PhabricatorFileStorageEngine::loadStorageEngines(
$content_length);
if ($engines) {
if ($force_chunking) {
foreach ($engines as $key => $engine) {
if (!$engine->isChunkEngine()) {
unset($engines[$key]);
}
}
}
// Pick the first engine. If the file is small enough to fit into a
// single engine without chunking, this will be a non-chunk engine and
// we'll just tell the client to upload the file.
$engine = head($engines);
if ($engine) {
if (!$engine->isChunkEngine()) {
return array(
'upload' => true,
'filePHID' => null,
);
}
// Otherwise, this is a large file and we need to perform a chunked
// upload.
$chunk_properties = $properties;
if ($hash) {
$chunk_properties += array(
'chunkedHash' => $chunked_hash,
);
}
$file = $engine->allocateChunks($content_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,
);
}
}
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