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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chromeos/drive/file_system/create_file_operation.h"
#include <string>
#include "base/files/file_util.h"
#include "chrome/browser/chromeos/drive/drive.pb.h"
#include "chrome/browser/chromeos/drive/file_change.h"
#include "chrome/browser/chromeos/drive/file_system/operation_delegate.h"
#include "chrome/browser/chromeos/drive/job_scheduler.h"
#include "chrome/browser/chromeos/drive/resource_metadata.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/mime_util.h"
using content::BrowserThread;
namespace drive {
namespace file_system {
namespace {
const char kMimeTypeOctetStream[] = "application/octet-stream";
// Updates local state.
FileError UpdateLocalState(internal::ResourceMetadata* metadata,
const base::FilePath& file_path,
const std::string& mime_type_in,
ResourceEntry* entry) {
DCHECK(metadata);
FileError error = metadata->GetResourceEntryByPath(file_path, entry);
if (error == FILE_ERROR_OK)
return FILE_ERROR_EXISTS;
if (error != FILE_ERROR_NOT_FOUND)
return error;
// If parent path is not a directory, it is an error.
ResourceEntry parent;
if (metadata->GetResourceEntryByPath(
file_path.DirName(), &parent) != FILE_ERROR_OK ||
!parent.file_info().is_directory())
return FILE_ERROR_NOT_A_DIRECTORY;
// If mime_type is not set or "application/octet-stream", guess from the
// |file_path|. If it is still unsure, use octet-stream by default.
std::string mime_type = mime_type_in;
if ((mime_type.empty() || mime_type == kMimeTypeOctetStream) &&
!net::GetMimeTypeFromFile(file_path, &mime_type))
mime_type = kMimeTypeOctetStream;
// Add the entry to the local resource metadata.
const base::Time now = base::Time::Now();
entry->mutable_file_info()->set_last_modified(now.ToInternalValue());
entry->mutable_file_info()->set_last_accessed(now.ToInternalValue());
entry->set_title(file_path.BaseName().AsUTF8Unsafe());
entry->set_parent_local_id(parent.local_id());
entry->set_metadata_edit_state(ResourceEntry::DIRTY);
entry->set_modification_date(base::Time::Now().ToInternalValue());
entry->mutable_file_specific_info()->set_content_mime_type(mime_type);
std::string local_id;
error = metadata->AddEntry(*entry, &local_id);
entry->set_local_id(local_id);
return error;
}
} // namespace
CreateFileOperation::CreateFileOperation(
base::SequencedTaskRunner* blocking_task_runner,
OperationDelegate* delegate,
internal::ResourceMetadata* metadata)
: blocking_task_runner_(blocking_task_runner),
delegate_(delegate),
metadata_(metadata),
weak_ptr_factory_(this) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
}
CreateFileOperation::~CreateFileOperation() {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
}
void CreateFileOperation::CreateFile(const base::FilePath& file_path,
bool is_exclusive,
const std::string& mime_type,
const FileOperationCallback& callback) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!callback.is_null());
ResourceEntry* entry = new ResourceEntry;
base::PostTaskAndReplyWithResult(
blocking_task_runner_.get(),
FROM_HERE,
base::Bind(&UpdateLocalState,
metadata_,
file_path,
mime_type,
entry),
base::Bind(&CreateFileOperation::CreateFileAfterUpdateLocalState,
weak_ptr_factory_.GetWeakPtr(),
callback,
file_path,
is_exclusive,
base::Owned(entry)));
}
void CreateFileOperation::CreateFileAfterUpdateLocalState(
const FileOperationCallback& callback,
const base::FilePath& file_path,
bool is_exclusive,
ResourceEntry* entry,
FileError error) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
DCHECK(!callback.is_null());
if (error == FILE_ERROR_EXISTS) {
// Error if an exclusive mode is requested, or the entry is not a file.
error = (is_exclusive ||
entry->file_info().is_directory() ||
entry->file_specific_info().is_hosted_document()) ?
FILE_ERROR_EXISTS : FILE_ERROR_OK;
} else if (error == FILE_ERROR_OK) {
DCHECK(!entry->file_info().is_directory());
// Notify delegate if the file was newly created.
FileChange changed_file;
changed_file.Update(
file_path, FileChange::FILE_TYPE_FILE, FileChange::ADD_OR_UPDATE);
delegate_->OnFileChangedByOperation(changed_file);
// Synchronize in the background.
delegate_->OnEntryUpdatedByOperation(ClientContext(BACKGROUND),
entry->local_id());
}
callback.Run(error);
}
} // namespace file_system
} // namespace drive
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