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// Copyright (c) 2012 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/google_apis/gdata_wapi_service.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/message_loop_proxy.h"
#include "base/task_runner_util.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/values.h"
#include "chrome/browser/google_apis/auth_service.h"
#include "chrome/browser/google_apis/gdata_wapi_operations.h"
#include "chrome/browser/google_apis/gdata_wapi_parser.h"
#include "chrome/browser/google_apis/gdata_wapi_url_generator.h"
#include "chrome/browser/google_apis/operation_runner.h"
#include "chrome/browser/google_apis/time_util.h"
#include "chrome/common/net/url_util.h"
#include "content/public/browser/browser_thread.h"
using content::BrowserThread;
namespace google_apis {
namespace {
// Parses the JSON value to ResourceList.
scoped_ptr<ResourceList> ParseResourceListOnBlockingPool(
scoped_ptr<base::Value> value) {
DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(value);
return ResourceList::ExtractAndParse(*value);
}
// Runs |callback| with |error| and |value|, but replace the error code with
// GDATA_PARSE_ERROR, if there was a parsing error.
void DidParseResourceListOnBlockingPool(
const GetResourceListCallback& callback,
GDataErrorCode error,
scoped_ptr<ResourceList> resource_list) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
// resource_list being NULL indicates there was a parsing error.
if (!resource_list)
error = GDATA_PARSE_ERROR;
callback.Run(error, resource_list.Pass());
}
// Parses the JSON value to ResourceList on the blocking pool and runs
// |callback| on the UI thread once parsing is done.
void ParseResourceListAndRun(const GetResourceListCallback& callback,
GDataErrorCode error,
scoped_ptr<base::Value> value) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
if (!value) {
callback.Run(error, scoped_ptr<ResourceList>());
return;
}
base::PostTaskAndReplyWithResult(
BrowserThread::GetBlockingPool(),
FROM_HERE,
base::Bind(&ParseResourceListOnBlockingPool, base::Passed(&value)),
base::Bind(&DidParseResourceListOnBlockingPool, callback, error));
}
// Parses the JSON value to ResourceEntry runs |callback|.
void ParseResourceEntryAndRun(const GetResourceEntryCallback& callback,
GDataErrorCode error,
scoped_ptr<base::Value> value) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (!value) {
callback.Run(error, scoped_ptr<ResourceEntry>());
return;
}
// Parsing ResourceEntry is cheap enough to do on UI thread.
scoped_ptr<ResourceEntry> entry =
google_apis::ResourceEntry::ExtractAndParse(*value);
if (!entry) {
callback.Run(GDATA_PARSE_ERROR, scoped_ptr<ResourceEntry>());
return;
}
callback.Run(error, entry.Pass());
}
// Parses the JSON value to AccountMetadataFeed on the blocking pool and runs
// |callback| on the UI thread once parsing is done.
void ParseAccounetMetadataAndRun(const GetAccountMetadataCallback& callback,
GDataErrorCode error,
scoped_ptr<base::Value> value) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
if (!value) {
callback.Run(error, scoped_ptr<AccountMetadataFeed>());
return;
}
// Parsing AccountMetadataFeed is cheap enough to do on UI thread.
scoped_ptr<AccountMetadataFeed> entry =
google_apis::AccountMetadataFeed::CreateFrom(*value);
if (!entry) {
callback.Run(GDATA_PARSE_ERROR, scoped_ptr<AccountMetadataFeed>());
return;
}
callback.Run(error, entry.Pass());
}
// Extracts the open link url from the JSON Feed. Used by AuthorizeApp().
void ExtractOpenLinkAndRun(const std::string app_id,
const AuthorizeAppCallback& callback,
GDataErrorCode error,
scoped_ptr<ResourceEntry> entry) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
// Entry not found in the feed.
if (!entry) {
callback.Run(error, GURL());
return;
}
const ScopedVector<google_apis::Link>& feed_links = entry->links();
GURL open_link;
for (size_t i = 0; i < feed_links.size(); ++i) {
if (feed_links[i]->type() == google_apis::Link::LINK_OPEN_WITH &&
feed_links[i]->app_id() == app_id) {
open_link = feed_links[i]->href();
break;
}
}
callback.Run(error, open_link);
}
// OAuth2 scopes for the documents API.
const char kDocsListScope[] = "https://docs.google.com/feeds/";
const char kSpreadsheetsScope[] = "https://spreadsheets.google.com/feeds/";
const char kUserContentScope[] = "https://docs.googleusercontent.com/";
const char kDriveAppsScope[] = "https://www.googleapis.com/auth/drive.apps";
// The resource ID for the root directory for WAPI is defined in the spec:
// https://developers.google.com/google-apps/documents-list/
const char kWapiRootDirectoryResourceId[] = "folder:root";
} // namespace
GDataWapiService::GDataWapiService(
net::URLRequestContextGetter* url_request_context_getter,
const GURL& base_url,
const std::string& custom_user_agent)
: url_request_context_getter_(url_request_context_getter),
runner_(NULL),
url_generator_(base_url),
custom_user_agent_(custom_user_agent) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
}
GDataWapiService::~GDataWapiService() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (runner_.get()) {
runner_->operation_registry()->RemoveObserver(this);
runner_->auth_service()->RemoveObserver(this);
}
}
AuthService* GDataWapiService::auth_service_for_testing() {
return runner_->auth_service();
}
void GDataWapiService::Initialize(Profile* profile) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
std::vector<std::string> scopes;
scopes.push_back(kDocsListScope);
scopes.push_back(kSpreadsheetsScope);
scopes.push_back(kUserContentScope);
// Drive App scope is required for even WAPI v3 apps access.
scopes.push_back(kDriveAppsScope);
runner_.reset(new OperationRunner(profile,
url_request_context_getter_,
scopes,
custom_user_agent_));
runner_->Initialize();
runner_->auth_service()->AddObserver(this);
runner_->operation_registry()->AddObserver(this);
}
void GDataWapiService::AddObserver(DriveServiceObserver* observer) {
observers_.AddObserver(observer);
}
void GDataWapiService::RemoveObserver(DriveServiceObserver* observer) {
observers_.RemoveObserver(observer);
}
bool GDataWapiService::CanStartOperation() const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return HasRefreshToken();
}
void GDataWapiService::CancelAll() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
runner_->CancelAll();
}
bool GDataWapiService::CancelForFilePath(const FilePath& file_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return operation_registry()->CancelForFilePath(file_path);
}
OperationProgressStatusList GDataWapiService::GetProgressStatusList() const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return operation_registry()->GetProgressStatusList();
}
std::string GDataWapiService::GetRootResourceId() const {
return kWapiRootDirectoryResourceId;
}
void GDataWapiService::GetResourceList(
const GURL& url,
int64 start_changestamp,
const std::string& search_query,
bool shared_with_me,
const std::string& directory_resource_id,
const GetResourceListCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
// Drive V2 API defines changestamp in int64, while DocumentsList API uses
// int32. This narrowing should not cause any trouble.
runner_->StartOperationWithRetry(
new GetResourceListOperation(
operation_registry(),
url_request_context_getter_,
url_generator_,
url,
static_cast<int>(start_changestamp),
search_query,
shared_with_me,
directory_resource_id,
base::Bind(&ParseResourceListAndRun, callback)));
}
void GDataWapiService::GetResourceEntry(
const std::string& resource_id,
const GetResourceEntryCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new GetResourceEntryOperation(
operation_registry(),
url_request_context_getter_,
url_generator_,
resource_id,
base::Bind(&ParseResourceEntryAndRun, callback)));
}
void GDataWapiService::GetAccountMetadata(
const GetAccountMetadataCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new GetAccountMetadataOperation(
operation_registry(),
url_request_context_getter_,
url_generator_,
base::Bind(&ParseAccounetMetadataAndRun, callback)));
}
void GDataWapiService::GetAppList(const GetAppListCallback& callback) {
// For WAPI, AccountMetadata includes Drive application information, and
// this function is not used.
NOTREACHED();
}
void GDataWapiService::DownloadFile(
const FilePath& virtual_path,
const FilePath& local_cache_path,
const GURL& content_url,
const DownloadActionCallback& download_action_callback,
const GetContentCallback& get_content_callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!download_action_callback.is_null());
// get_content_callback may be null.
runner_->StartOperationWithRetry(
new DownloadFileOperation(operation_registry(),
url_request_context_getter_,
download_action_callback,
get_content_callback,
content_url,
virtual_path,
local_cache_path));
}
void GDataWapiService::DeleteResource(
const std::string& resource_id,
const EntryActionCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new DeleteResourceOperation(operation_registry(),
url_request_context_getter_,
url_generator_,
callback,
resource_id));
}
void GDataWapiService::AddNewDirectory(
const std::string& parent_resource_id,
const std::string& directory_name,
const GetResourceEntryCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new CreateDirectoryOperation(operation_registry(),
url_request_context_getter_,
url_generator_,
base::Bind(&ParseResourceEntryAndRun,
callback),
parent_resource_id,
directory_name));
}
void GDataWapiService::CopyHostedDocument(
const std::string& resource_id,
const std::string& new_name,
const GetResourceEntryCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new CopyHostedDocumentOperation(
operation_registry(),
url_request_context_getter_,
url_generator_,
base::Bind(&ParseResourceEntryAndRun, callback),
resource_id,
new_name));
}
void GDataWapiService::RenameResource(
const std::string& resource_id,
const std::string& new_name,
const EntryActionCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new RenameResourceOperation(operation_registry(),
url_request_context_getter_,
url_generator_,
callback,
resource_id,
new_name));
}
void GDataWapiService::AddResourceToDirectory(
const std::string& parent_resource_id,
const GURL& edit_url,
const EntryActionCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new AddResourceToDirectoryOperation(operation_registry(),
url_request_context_getter_,
url_generator_,
callback,
parent_resource_id,
edit_url));
}
void GDataWapiService::RemoveResourceFromDirectory(
const std::string& parent_resource_id,
const std::string& resource_id,
const EntryActionCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new RemoveResourceFromDirectoryOperation(operation_registry(),
url_request_context_getter_,
url_generator_,
callback,
parent_resource_id,
resource_id));
}
void GDataWapiService::InitiateUpload(
const InitiateUploadParams& params,
const InitiateUploadCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
if (params.upload_location.is_empty()) {
callback.Run(HTTP_BAD_REQUEST, GURL());
return;
}
runner_->StartOperationWithRetry(
new InitiateUploadOperation(operation_registry(),
url_request_context_getter_,
callback,
params));
}
void GDataWapiService::ResumeUpload(const ResumeUploadParams& params,
const ResumeUploadCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new ResumeUploadOperation(operation_registry(),
url_request_context_getter_,
callback,
params));
}
void GDataWapiService::AuthorizeApp(const GURL& edit_url,
const std::string& app_id,
const AuthorizeAppCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
DCHECK(!callback.is_null());
runner_->StartOperationWithRetry(
new AuthorizeAppOperation(
operation_registry(),
url_request_context_getter_,
base::Bind(&ParseResourceEntryAndRun,
base::Bind(&ExtractOpenLinkAndRun, app_id, callback)),
edit_url,
app_id));
}
bool GDataWapiService::HasAccessToken() const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return runner_->auth_service()->HasAccessToken();
}
bool GDataWapiService::HasRefreshToken() const {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
return runner_->auth_service()->HasRefreshToken();
}
OperationRegistry* GDataWapiService::operation_registry() const {
return runner_->operation_registry();
}
void GDataWapiService::OnOAuth2RefreshTokenChanged() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (CanStartOperation()) {
FOR_EACH_OBSERVER(
DriveServiceObserver, observers_, OnReadyToPerformOperations());
}
}
void GDataWapiService::OnProgressUpdate(
const OperationProgressStatusList& list) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
FOR_EACH_OBSERVER(
DriveServiceObserver, observers_, OnProgressUpdate(list));
}
void GDataWapiService::OnAuthenticationFailed(GDataErrorCode error) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
FOR_EACH_OBSERVER(
DriveServiceObserver, observers_, OnAuthenticationFailed(error));
}
} // namespace google_apis
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