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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 "chrome/browser/chromeos/drive/drive.pb.h"
#include "chrome/browser/chromeos/drive/file_cache.h"
#include "chrome/browser/chromeos/drive/file_system/operation_observer.h"
#include "chrome/browser/chromeos/drive/file_system_util.h"
#include "chrome/browser/chromeos/drive/job_scheduler.h"
#include "chrome/browser/chromeos/drive/resource_entry_conversion.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";
// Wraps |callback| and always passes FILE_ERROR_OK when invoked.
// This is used for adopting |callback| to wait for a non-fatal operation.
void IgnoreError(const FileOperationCallback& callback, FileError error) {
callback.Run(FILE_ERROR_OK);
}
} // namespace
CreateFileOperation::CreateFileOperation(
JobScheduler* job_scheduler,
internal::FileCache* cache,
internal::ResourceMetadata* metadata,
scoped_refptr<base::SequencedTaskRunner> blocking_task_runner,
OperationObserver* observer)
: job_scheduler_(job_scheduler),
cache_(cache),
metadata_(metadata),
blocking_task_runner_(blocking_task_runner),
observer_(observer),
weak_ptr_factory_(this) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
CreateFileOperation::~CreateFileOperation() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
void CreateFileOperation::CreateFile(const base::FilePath& file_path,
bool is_exclusive,
const FileOperationCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
// First, checks the existence of a file at |file_path|.
metadata_->GetResourceEntryPairByPathsOnUIThread(
file_path.DirName(),
file_path,
base::Bind(&CreateFileOperation::CreateFileAfterGetResourceEntry,
weak_ptr_factory_.GetWeakPtr(),
file_path,
is_exclusive,
callback));
}
void CreateFileOperation::CreateFileAfterGetResourceEntry(
const base::FilePath& file_path,
bool is_exclusive,
const FileOperationCallback& callback,
scoped_ptr<EntryInfoPairResult> pair_result) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
FileError error = pair_result->second.error;
scoped_ptr<ResourceEntry> parent(pair_result->first.entry.Pass());
// If parent path is not a directory, it is an error.
if (!parent || !parent->file_info().is_directory()) {
callback.Run(FILE_ERROR_NOT_A_DIRECTORY);
return;
}
// If an entry already exists at |path|:
if (error == FILE_ERROR_OK) {
scoped_ptr<ResourceEntry> entry(pair_result->second.entry.Pass());
// Error if an exclusive mode is requested, or the entry is not a file.
if (is_exclusive ||
entry->file_info().is_directory() ||
entry->file_specific_info().is_hosted_document()) {
callback.Run(FILE_ERROR_EXISTS);
} else {
callback.Run(FILE_ERROR_OK);
}
return;
}
// Otherwise, the error code must be ERROR_NOT_FOUND.
if (error != FILE_ERROR_NOT_FOUND) {
callback.Run(error);
return;
}
// Get the mime type from the file name extension.
std::string* content_type = new std::string;
base::PostTaskAndReplyWithResult(
blocking_task_runner_,
FROM_HERE,
base::Bind(&net::GetMimeTypeFromFile,
file_path,
base::Unretained(content_type)),
base::Bind(&CreateFileOperation::CreateFileAfterGetMimeType,
weak_ptr_factory_.GetWeakPtr(),
file_path,
parent->resource_id(),
callback,
base::Owned(content_type)));
}
void CreateFileOperation::CreateFileAfterGetMimeType(
const base::FilePath& file_path,
const std::string& parent_resource_id,
const FileOperationCallback& callback,
const std::string* content_type,
bool got_content_type) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
job_scheduler_->CreateFile(
parent_resource_id,
file_path,
file_path.BaseName().value(),
got_content_type ? *content_type : kMimeTypeOctetStream,
DriveClientContext(USER_INITIATED),
base::Bind(&CreateFileOperation::CreateFileAfterUpload,
weak_ptr_factory_.GetWeakPtr(),
callback));
}
void CreateFileOperation::CreateFileAfterUpload(
const FileOperationCallback& callback,
google_apis::GDataErrorCode error,
scoped_ptr<google_apis::ResourceEntry> resource_entry) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
if (error == google_apis::HTTP_SUCCESS && resource_entry) {
// Add the entry to the local resource metadata.
ResourceEntry entry = ConvertToResourceEntry(*resource_entry);
metadata_->AddEntryOnUIThread(
entry,
base::Bind(&CreateFileOperation::CreateFileAfterAddToMetadata,
weak_ptr_factory_.GetWeakPtr(),
entry,
callback));
} else {
callback.Run(util::GDataToFileError(error));
}
}
void CreateFileOperation::CreateFileAfterAddToMetadata(
const ResourceEntry& entry,
const FileOperationCallback& callback,
FileError error,
const base::FilePath& drive_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Depending on timing, the metadata may have inserted via change list feed
// already. So, FILE_ERROR_EXISTS is not an error.
if (error == FILE_ERROR_EXISTS)
error = FILE_ERROR_OK;
if (error != FILE_ERROR_OK) {
callback.Run(error);
return;
}
observer_->OnDirectoryChangedByOperation(drive_path.DirName());
// At this point, upload to the server is fully succeeded. Failure to store to
// cache is not a fatal error, so we wrap the callback with IgnoreError, and
// always return success to the caller.
cache_->StoreOnUIThread(entry.resource_id(),
entry.file_specific_info().file_md5(),
base::FilePath(util::kSymLinkToDevNull),
internal::FileCache::FILE_OPERATION_COPY,
base::Bind(&IgnoreError, callback));
}
} // namespace file_system
} // namespace drive
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