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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/settings/device_oauth2_token_service.h"
#include <string>
#include <vector>
#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/memory/weak_ptr.h"
#include "base/message_loop/message_loop.h"
#include "base/time/time.h"
#include "chrome/common/pref_names.h"
#include "components/prefs/pref_registry_simple.h"
#include "google_apis/gaia/google_service_auth_error.h"
namespace chromeos {
struct DeviceOAuth2TokenService::PendingRequest {
PendingRequest(const base::WeakPtr<RequestImpl>& request,
const std::string& client_id,
const std::string& client_secret,
const ScopeSet& scopes)
: request(request),
client_id(client_id),
client_secret(client_secret),
scopes(scopes) {}
const base::WeakPtr<RequestImpl> request;
const std::string client_id;
const std::string client_secret;
const ScopeSet scopes;
};
void DeviceOAuth2TokenService::OnValidationCompleted(
GoogleServiceAuthError::State error) {
if (error == GoogleServiceAuthError::NONE)
FlushPendingRequests(true, GoogleServiceAuthError::NONE);
else
FlushPendingRequests(false, error);
}
DeviceOAuth2TokenService::DeviceOAuth2TokenService(
DeviceOAuth2TokenServiceDelegate* delegate)
: OAuth2TokenService(delegate),
delegate_(static_cast<DeviceOAuth2TokenServiceDelegate*>(delegate)) {
delegate_->SetValidationStatusDelegate(this);
}
DeviceOAuth2TokenService::~DeviceOAuth2TokenService() {
delegate_->SetValidationStatusDelegate(nullptr);
FlushPendingRequests(false, GoogleServiceAuthError::REQUEST_CANCELED);
}
// static
void DeviceOAuth2TokenService::RegisterPrefs(PrefRegistrySimple* registry) {
registry->RegisterStringPref(prefs::kDeviceRobotAnyApiRefreshToken,
std::string());
}
void DeviceOAuth2TokenService::SetAndSaveRefreshToken(
const std::string& refresh_token,
const StatusCallback& result_callback) {
delegate_->SetAndSaveRefreshToken(refresh_token, result_callback);
}
std::string DeviceOAuth2TokenService::GetRobotAccountId() const {
return delegate_->GetRobotAccountId();
}
void DeviceOAuth2TokenService::FetchOAuth2Token(
RequestImpl* request,
const std::string& account_id,
net::URLRequestContextGetter* getter,
const std::string& client_id,
const std::string& client_secret,
const ScopeSet& scopes) {
switch (delegate_->state_) {
case DeviceOAuth2TokenServiceDelegate::STATE_VALIDATION_PENDING:
// If this is the first request for a token, start validation.
delegate_->StartValidation();
// fall through.
case DeviceOAuth2TokenServiceDelegate::STATE_LOADING:
case DeviceOAuth2TokenServiceDelegate::STATE_VALIDATION_STARTED:
// Add a pending request that will be satisfied once validation completes.
pending_requests_.push_back(new PendingRequest(
request->AsWeakPtr(), client_id, client_secret, scopes));
delegate_->RequestValidation();
return;
case DeviceOAuth2TokenServiceDelegate::STATE_NO_TOKEN:
FailRequest(request, GoogleServiceAuthError::USER_NOT_SIGNED_UP);
return;
case DeviceOAuth2TokenServiceDelegate::STATE_TOKEN_INVALID:
FailRequest(request, GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
return;
case DeviceOAuth2TokenServiceDelegate::STATE_TOKEN_VALID:
// Pass through to OAuth2TokenService to satisfy the request.
OAuth2TokenService::FetchOAuth2Token(
request, account_id, getter, client_id, client_secret, scopes);
return;
}
NOTREACHED() << "Unexpected state " << delegate_->state_;
}
void DeviceOAuth2TokenService::FlushPendingRequests(
bool token_is_valid,
GoogleServiceAuthError::State error) {
std::vector<PendingRequest*> requests;
requests.swap(pending_requests_);
for (std::vector<PendingRequest*>::iterator request(requests.begin());
request != requests.end();
++request) {
scoped_ptr<PendingRequest> scoped_request(*request);
if (!scoped_request->request)
continue;
if (token_is_valid) {
OAuth2TokenService::FetchOAuth2Token(
scoped_request->request.get(),
scoped_request->request->GetAccountId(),
delegate_->GetRequestContext(), scoped_request->client_id,
scoped_request->client_secret, scoped_request->scopes);
} else {
FailRequest(scoped_request->request.get(), error);
}
}
}
void DeviceOAuth2TokenService::FailRequest(
RequestImpl* request,
GoogleServiceAuthError::State error) {
GoogleServiceAuthError auth_error(error);
base::MessageLoop::current()->PostTask(FROM_HERE, base::Bind(
&RequestImpl::InformConsumer,
request->AsWeakPtr(),
auth_error,
std::string(),
base::Time()));
}
} // namespace chromeos
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