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// Copyright (c) 2011 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/policy/user_policy_token_loader.h"
#include "base/bind.h"
#include "base/file_util.h"
#include "base/location.h"
#include "base/message_loop/message_loop_proxy.h"
#include "base/metrics/histogram.h"
#include "base/sequenced_task_runner.h"
#include "components/policy/core/common/cloud/enterprise_metrics.h"
#include "policy/proto/device_management_local.pb.h"
namespace policy {
namespace em = enterprise_management;
UserPolicyTokenLoader::Delegate::~Delegate() {}
UserPolicyTokenLoader::UserPolicyTokenLoader(
const base::WeakPtr<Delegate>& delegate,
const base::FilePath& cache_file,
scoped_refptr<base::SequencedTaskRunner> background_task_runner)
: delegate_(delegate),
cache_file_(cache_file),
origin_task_runner_(base::MessageLoopProxy::current()),
background_task_runner_(background_task_runner) {}
void UserPolicyTokenLoader::Load() {
DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
background_task_runner_->PostTask(
FROM_HERE,
base::Bind(&UserPolicyTokenLoader::LoadOnBackgroundThread, this));
}
UserPolicyTokenLoader::~UserPolicyTokenLoader() {
}
void UserPolicyTokenLoader::LoadOnBackgroundThread() {
DCHECK(background_task_runner_->RunsTasksOnCurrentThread());
std::string device_token;
std::string device_id;
if (base::PathExists(cache_file_)) {
std::string data;
em::DeviceCredentials device_credentials;
if (base::ReadFileToString(cache_file_, &data) &&
device_credentials.ParseFromArray(data.c_str(), data.size())) {
device_token = device_credentials.device_token();
device_id = device_credentials.device_id();
UMA_HISTOGRAM_ENUMERATION(policy::kMetricToken,
kMetricTokenLoadSucceeded,
policy::kMetricTokenSize);
} else {
UMA_HISTOGRAM_ENUMERATION(policy::kMetricToken,
kMetricTokenLoadFailed,
policy::kMetricTokenSize);
}
}
origin_task_runner_->PostTask(
FROM_HERE,
base::Bind(&UserPolicyTokenLoader::NotifyOnOriginThread,
this,
device_token,
device_id));
}
void UserPolicyTokenLoader::NotifyOnOriginThread(const std::string& token,
const std::string& device_id) {
DCHECK(origin_task_runner_->RunsTasksOnCurrentThread());
if (delegate_.get())
delegate_->OnTokenLoaded(token, device_id);
}
} // namespace policy
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