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feat(oauth2): add support for external account workforce identity by cuiy0006 · Pull Request #14800 · googleapis/google-cloud-cpp · GitHub

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feat(oauth2): add support for external account workforce identity #14800

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cuiy0006 merged 5 commits into from
Oct 28, 2024
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feat(oauth2): add support for external account workforce identity #14800

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feat(oauth2): add support for external account workforce identity
cuiy0006 Oct 24, 2024
e67c9cd
move
cuiy0006 Oct 24, 2024
a6de38c
avoid cmake dep
cuiy0006 Oct 24, 2024
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format
cuiy0006 Oct 24, 2024
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address the comments
cuiy0006 Oct 28, 2024
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29 changes: 24 additions & 5 deletions google/cloud/internal/oauth2_external_account_credentials.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -96,12 +96,21 @@ StatusOr<ExternalAccountInfo> ParseExternalAccountConfiguration(
MakeExternalAccountTokenSource(*credential_source, *audience, ec);
if (!source) return std::move(source).status();

auto info =
ExternalAccountInfo{*std::move(audience), *std::move(subject_token_type),
*std::move(token_url), *std::move(source),
absl::nullopt, *std::move(universe_domain)};
absl::optional<std::string> workforce_pool_user_project;
auto it = json.find("workforce_pool_user_project");
if (it != json.end()) {
workforce_pool_user_project = it->get<std::string>();
}

auto info = ExternalAccountInfo{*std::move(audience),
*std::move(subject_token_type),
*std::move(token_url),
*std::move(source),
absl::nullopt,
*std::move(universe_domain),
std::move(workforce_pool_user_project)};

auto it = json.find("service_account_impersonation_url");
it = json.find("service_account_impersonation_url");
if (it == json.end()) return info;

auto constexpr kDefaultImpersonationTokenLifetime =
Expand Down Expand Up @@ -148,6 +157,16 @@ StatusOr<AccessToken> ExternalAccountCredentials::GetToken(
{"subject_token_type", info_.subject_token_type},
{"subject_token", subject_token->token},
};

// Workforce Identity is handled at the org level and requires the userProject
// header. Workload Identity is handled at the project level and doesn't
// require the header.
if (info_.workforce_pool_user_project) {
form_data.emplace_back(
"options", absl::StrCat(R"({"userProject": ")",
*info_.workforce_pool_user_project, R"("})"));
}

auto request =
rest_internal::RestRequest(info_.token_url)
.AddHeader("content-type", "application/x-www-form-urlencoded");
Expand Down
1 change: 1 addition & 0 deletions google/cloud/internal/oauth2_external_account_credentials.h
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,7 @@ struct ExternalAccountInfo {
ExternalAccountTokenSource token_source;
absl::optional<ExternalAccountImpersonationConfig> impersonation_config;
std::string universe_domain;
absl::optional<std::string> workforce_pool_user_project;
};

/// Parse a JSON string with an external account configuration.
Expand Down
113 changes: 100 additions & 13 deletions google/cloud/internal/oauth2_external_account_credentials_test.cc
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Expand Up @@ -48,6 +48,7 @@ using ::testing::Contains;
using ::testing::ElementsAre;
using ::testing::HasSubstr;
using ::testing::MatcherCast;
using ::testing::Optional;
using ::testing::Pair;
using ::testing::Property;
using ::testing::ResultOf;
Expand Down Expand Up @@ -304,6 +305,27 @@ TEST(ExternalAccount, ParseWithImpersonationDefaultLifetimeSuccess) {
std::chrono::seconds(3600));
}

TEST(ExternalAccount, ParseUserProjectSuccess) {
auto const configuration = nlohmann::json{
{"type", "external_account"},
{"audience", "test-audience"},
{"subject_token_type", "test-subject-token-type"},
{"token_url", "test-token-url"},
{"credential_source", nlohmann::json{{"file", "/dev/null-test-only"}}},
{"workforce_pool_user_project", "project-id-or-name"},
};
auto ec = internal::ErrorContext(
{{"program", "test"}, {"full-configuration", configuration.dump()}});
auto const actual =
ParseExternalAccountConfiguration(configuration.dump(), ec);
ASSERT_STATUS_OK(actual);
EXPECT_EQ(actual->audience, "test-audience");
EXPECT_EQ(actual->subject_token_type, "test-subject-token-type");
EXPECT_EQ(actual->token_url, "test-token-url");
EXPECT_THAT(actual->workforce_pool_user_project,
Optional(std::string("project-id-or-name")));
}

TEST(ExternalAccount, ParseNotJson) {
auto const configuration = std::string{"not-json"};
auto ec = internal::ErrorContext(
Expand Down Expand Up @@ -657,7 +679,8 @@ TEST(ExternalAccount, Working) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};

MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call(make_expected_options())).WillOnce([&]() {
Expand Down Expand Up @@ -689,6 +712,58 @@ TEST(ExternalAccount, Working) {
EXPECT_EQ(access_token->token, expected_access_token);
}

TEST(ExternalAccount, WorkingWorkforceIdentity) {
auto const test_url = std::string{"https://sts.example.com/"};
auto const expected_access_token = std::string{"test-access-token"};
auto const expected_expires_in = std::chrono::seconds(3456);
auto const json_response = nlohmann::json{
{"access_token", expected_access_token},
{"expires_in", expected_expires_in.count()},
{"issued_token_type", "urn:ietf:params:oauth:token-type:access_token"},
{"token_type", "Bearer"},
};
auto mock_source = [](HttpClientFactory const&, Options const&) {
return make_status_or(internal::SubjectToken{"test-subject-token"});
};
auto const info = ExternalAccountInfo{"test-audience",
"test-subject-token-type",
test_url,
mock_source,
absl::nullopt,
{},
"project-id-or-name"};

MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call(make_expected_options())).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
auto expected_request = make_expected_token_exchange_request(test_url);
auto expected_payload =
MatcherCast<FormDataType const&>(UnorderedElementsAre(
Pair("grant_type",
"urn:ietf:params:oauth:grant-type:token-exchange"),
Pair("requested_token_type",
"urn:ietf:params:oauth:token-type:access_token"),
Pair("scope", "https://www.googleapis.com/auth/cloud-platform"),
Pair("audience", "test-audience"),
Pair("subject_token_type", "test-subject-token-type"),
Pair("subject_token", "test-subject-token"),
Pair("options", R"({"userProject": "project-id-or-name"})")));
EXPECT_CALL(*mock, Post(_, expected_request, expected_payload))
.WillOnce(
Return(ByMove(MakeMockResponseSuccess(json_response.dump()))));
return mock;
});

auto credentials =
ExternalAccountCredentials(info, client_factory.AsStdFunction(),
Options{}.set<TestOnlyOption>("test-option"));
auto const now = std::chrono::system_clock::now();
auto access_token = credentials.GetToken(now);
ASSERT_STATUS_OK(access_token);
EXPECT_EQ(access_token->expiration, now + expected_expires_in);
EXPECT_EQ(access_token->token, expected_access_token);
}

TEST(ExternalAccount, WorkingWithImpersonation) {
auto const sts_test_url = std::string{"https://sts.example.com/"};
auto const sts_access_token = std::string{"test-sts-access-token"};
Expand Down Expand Up @@ -727,7 +802,8 @@ TEST(ExternalAccount, WorkingWithImpersonation) {
mock_source,
ExternalAccountImpersonationConfig{
impersonate_test_url, impersonate_test_lifetime},
{}};
{},
absl::nullopt};

auto sts_client = [&] {
auto expected_sts_request = Property(&RestRequest::path, sts_test_url);
Expand Down Expand Up @@ -798,7 +874,8 @@ TEST(ExternalAccount, HandleHttpError) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -836,7 +913,8 @@ TEST(ExternalAccount, HandleHttpPartialError) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -875,7 +953,8 @@ TEST(ExternalAccount, HandleNotJson) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -914,7 +993,8 @@ TEST(ExternalAccount, HandleNotJsonObject) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -959,7 +1039,8 @@ TEST(ExternalAccount, MissingToken) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -993,7 +1074,8 @@ TEST(ExternalAccount, MissingIssuedTokenType) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -1027,7 +1109,8 @@ TEST(ExternalAccount, MissingTokenType) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -1061,7 +1144,8 @@ TEST(ExternalAccount, InvalidIssuedTokenType) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -1097,7 +1181,8 @@ TEST(ExternalAccount, InvalidTokenType) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -1134,7 +1219,8 @@ TEST(ExternalAccount, MissingExpiresIn) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down Expand Up @@ -1169,7 +1255,8 @@ TEST(ExternalAccount, InvalidExpiresIn) {
auto const info =
ExternalAccountInfo{"test-audience", "test-subject-token-type",
test_url, mock_source,
absl::nullopt, {}};
absl::nullopt, {},
absl::nullopt};
MockClientFactory client_factory;
EXPECT_CALL(client_factory, Call).WillOnce([&]() {
auto mock = std::make_unique<MockRestClient>();
Expand Down
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