You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
78 lines
2.5 KiB
78 lines
2.5 KiB
//
|
|
// Copyright (C) 2019 The Android Open Source Project
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "credential_source.h"
|
|
|
|
#include <android-base/logging.h>
|
|
|
|
namespace cuttlefish {
|
|
namespace {
|
|
|
|
std::chrono::steady_clock::duration REFRESH_WINDOW =
|
|
std::chrono::minutes(2);
|
|
std::string REFRESH_URL = "http://metadata.google.internal/computeMetadata/"
|
|
"v1/instance/service-accounts/default/token";
|
|
|
|
} // namespace
|
|
|
|
GceMetadataCredentialSource::GceMetadataCredentialSource() {
|
|
latest_credential = "";
|
|
expiration = std::chrono::steady_clock::now();
|
|
}
|
|
|
|
std::string GceMetadataCredentialSource::Credential() {
|
|
if (expiration - std::chrono::steady_clock::now() < REFRESH_WINDOW) {
|
|
RefreshCredential();
|
|
}
|
|
return latest_credential;
|
|
}
|
|
|
|
void GceMetadataCredentialSource::RefreshCredential() {
|
|
Json::Value credential_json =
|
|
curl.DownloadToJson(REFRESH_URL, {"Metadata-Flavor: Google"});
|
|
|
|
CHECK(!credential_json.isMember("error")) << "Error fetching credentials. " <<
|
|
"Response was " << credential_json;
|
|
bool has_access_token = credential_json.isMember("access_token");
|
|
bool has_expires_in = credential_json.isMember("expires_in");
|
|
if (!has_access_token || !has_expires_in) {
|
|
LOG(FATAL) << "GCE credential was missing access_token or expires_in. "
|
|
<< "Full response was " << credential_json << "";
|
|
}
|
|
|
|
expiration = std::chrono::steady_clock::now()
|
|
+ std::chrono::seconds(credential_json["expires_in"].asInt());
|
|
latest_credential = credential_json["access_token"].asString();
|
|
}
|
|
|
|
std::unique_ptr<CredentialSource> GceMetadataCredentialSource::make() {
|
|
return std::unique_ptr<CredentialSource>(new GceMetadataCredentialSource());
|
|
}
|
|
|
|
FixedCredentialSource::FixedCredentialSource(const std::string& credential) {
|
|
this->credential = credential;
|
|
}
|
|
|
|
std::string FixedCredentialSource::Credential() {
|
|
return credential;
|
|
}
|
|
|
|
std::unique_ptr<CredentialSource> FixedCredentialSource::make(
|
|
const std::string& credential) {
|
|
return std::unique_ptr<CredentialSource>(new FixedCredentialSource(credential));
|
|
}
|
|
|
|
} // namespace cuttlefish
|