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// Copyright 2014 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/supervised_user/permission_request_creator_apiary.h"
#include "base/callback.h"
#include "base/command_line.h"
#include "base/json/json_reader.h"
#include "base/json/json_writer.h"
#include "base/logging.h"
#include "base/strings/stringprintf.h"
#include "base/values.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
#include "chrome/browser/signin/signin_manager_factory.h"
#include "chrome/browser/sync/supervised_user_signin_manager_wrapper.h"
#include "chrome/common/chrome_switches.h"
#include "components/signin/core/browser/profile_oauth2_token_service.h"
#include "components/signin/core/browser/signin_manager.h"
#include "components/signin/core/browser/signin_manager_base.h"
#include "google_apis/gaia/google_service_auth_error.h"
#include "net/base/load_flags.h"
#include "net/base/net_errors.h"
#include "net/http/http_status_code.h"
#include "net/url_request/url_fetcher.h"
#include "net/url_request/url_request_status.h"
using net::URLFetcher;
const int kNumRetries = 1;
const char kIdKey[] = "id";
const char kNamespace[] = "CHROME";
const char kState[] = "PENDING";
static const char kAuthorizationHeaderFormat[] = "Authorization: Bearer %s";
PermissionRequestCreatorApiary::PermissionRequestCreatorApiary(
OAuth2TokenService* oauth2_token_service,
scoped_ptr<SupervisedUserSigninManagerWrapper> signin_wrapper,
net::URLRequestContextGetter* context)
: OAuth2TokenService::Consumer("permissions_creator"),
oauth2_token_service_(oauth2_token_service),
signin_wrapper_(signin_wrapper.Pass()),
context_(context),
access_token_expired_(false) {}
PermissionRequestCreatorApiary::~PermissionRequestCreatorApiary() {}
// static
scoped_ptr<PermissionRequestCreator>
PermissionRequestCreatorApiary::CreateWithProfile(Profile* profile) {
ProfileOAuth2TokenService* token_service =
ProfileOAuth2TokenServiceFactory::GetForProfile(profile);
SigninManagerBase* signin = SigninManagerFactory::GetForProfile(profile);
scoped_ptr<SupervisedUserSigninManagerWrapper> signin_wrapper(
new SupervisedUserSigninManagerWrapper(profile, signin));
scoped_ptr<PermissionRequestCreator> creator(
new PermissionRequestCreatorApiary(
token_service, signin_wrapper.Pass(), profile->GetRequestContext()));
return creator.Pass();
}
void PermissionRequestCreatorApiary::CreatePermissionRequest(
const std::string& url_requested,
const base::Closure& callback) {
url_requested_ = url_requested;
callback_ = callback;
StartFetching();
}
void PermissionRequestCreatorApiary::StartFetching() {
OAuth2TokenService::ScopeSet scopes;
if (CommandLine::ForCurrentProcess()->HasSwitch(
switches::kPermissionRequestApiScope)) {
scopes.insert(CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kPermissionRequestApiScope));
} else {
scopes.insert(signin_wrapper_->GetSyncScopeToUse());
}
access_token_request_ = oauth2_token_service_->StartRequest(
signin_wrapper_->GetAccountIdToUse(), scopes, this);
}
void PermissionRequestCreatorApiary::OnGetTokenSuccess(
const OAuth2TokenService::Request* request,
const std::string& access_token,
const base::Time& expiration_time) {
DCHECK_EQ(access_token_request_.get(), request);
access_token_ = access_token;
GURL url(CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
switches::kPermissionRequestApiUrl));
const int id = 0;
url_fetcher_.reset(URLFetcher::Create(id, url, URLFetcher::POST, this));
url_fetcher_->SetRequestContext(context_);
url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
net::LOAD_DO_NOT_SAVE_COOKIES);
url_fetcher_->SetAutomaticallyRetryOnNetworkChanges(kNumRetries);
url_fetcher_->AddExtraRequestHeader(
base::StringPrintf(kAuthorizationHeaderFormat, access_token.c_str()));
base::DictionaryValue dict;
dict.SetStringWithoutPathExpansion("namespace", kNamespace);
dict.SetStringWithoutPathExpansion("objectRef", url_requested_);
dict.SetStringWithoutPathExpansion("state", kState);
std::string body;
base::JSONWriter::Write(&dict, &body);
url_fetcher_->SetUploadData("application/json", body);
url_fetcher_->Start();
}
void PermissionRequestCreatorApiary::OnGetTokenFailure(
const OAuth2TokenService::Request* request,
const GoogleServiceAuthError& error) {
DCHECK_EQ(access_token_request_.get(), request);
callback_.Run();
callback_.Reset();
}
void PermissionRequestCreatorApiary::OnURLFetchComplete(
const URLFetcher* source) {
const net::URLRequestStatus& status = source->GetStatus();
if (!status.is_success()) {
DispatchNetworkError(status.error());
return;
}
int response_code = source->GetResponseCode();
if (response_code == net::HTTP_UNAUTHORIZED && !access_token_expired_) {
access_token_expired_ = true;
OAuth2TokenService::ScopeSet scopes;
scopes.insert(signin_wrapper_->GetSyncScopeToUse());
oauth2_token_service_->InvalidateToken(
signin_wrapper_->GetAccountIdToUse(), scopes, access_token_);
StartFetching();
return;
}
if (response_code != net::HTTP_OK) {
DLOG(WARNING) << "HTTP error " << response_code;
DispatchGoogleServiceAuthError(
GoogleServiceAuthError(GoogleServiceAuthError::CONNECTION_FAILED));
return;
}
std::string response_body;
source->GetResponseAsString(&response_body);
scoped_ptr<base::Value> value(base::JSONReader::Read(response_body));
base::DictionaryValue* dict = NULL;
if (!value || !value->GetAsDictionary(&dict)) {
DispatchNetworkError(net::ERR_INVALID_RESPONSE);
return;
}
std::string id;
if (!dict->GetString(kIdKey, &id)) {
DispatchNetworkError(net::ERR_INVALID_RESPONSE);
return;
}
callback_.Run();
callback_.Reset();
}
void PermissionRequestCreatorApiary::DispatchNetworkError(int error_code) {
DispatchGoogleServiceAuthError(
GoogleServiceAuthError::FromConnectionError(error_code));
}
void PermissionRequestCreatorApiary::DispatchGoogleServiceAuthError(
const GoogleServiceAuthError& error) {
callback_.Run();
callback_.Reset();
}
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