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/*
*
* Copyright 2015 gRPC authors.
*
* 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 <stdio.h>
#include <string.h>
#include <grpc/grpc.h>
#include <grpc/grpc_security.h>
#include <grpc/slice.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpcpp/security/credentials.h>
#include "src/core/lib/iomgr/error.h"
#include "src/core/lib/iomgr/load_file.h"
#include "src/core/lib/security/credentials/credentials.h"
#include "src/core/lib/security/util/json_util.h"
#include "src/cpp/client/secure_credentials.h"
#include "test/core/security/oauth2_utils.h"
#include "test/core/util/cmdline.h"
static grpc_call_credentials* create_sts_creds(const char* json_file_path) {
grpc::experimental::StsCredentialsOptions options;
if (strlen(json_file_path) == 0) {
auto status = grpc::experimental::StsCredentialsOptionsFromEnv(&options);
if (!status.ok()) {
gpr_log(GPR_ERROR, "%s", status.error_message().c_str());
return nullptr;
}
} else {
grpc_slice sts_options_slice;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"load_file", grpc_load_file(json_file_path, 1, &sts_options_slice)));
auto status = grpc::experimental::StsCredentialsOptionsFromJson(
reinterpret_cast<const char*>(GRPC_SLICE_START_PTR(sts_options_slice)),
&options);
gpr_slice_unref(sts_options_slice);
if (!status.ok()) {
gpr_log(GPR_ERROR, "%s", status.error_message().c_str());
return nullptr;
}
}
grpc_sts_credentials_options opts =
grpc::experimental::StsCredentialsCppToCoreOptions(options);
grpc_call_credentials* result = grpc_sts_credentials_create(&opts, nullptr);
return result;
}
static grpc_call_credentials* create_refresh_token_creds(
const char* json_refresh_token_file_path) {
grpc_slice refresh_token;
GPR_ASSERT(GRPC_LOG_IF_ERROR(
"load_file",
grpc_load_file(json_refresh_token_file_path, 1, &refresh_token)));
grpc_call_credentials* result = grpc_google_refresh_token_credentials_create(
reinterpret_cast<const char*> GRPC_SLICE_START_PTR(refresh_token),
nullptr);
gpr_slice_unref(refresh_token);
return result;
}
int main(int argc, char** argv) {
grpc_call_credentials* creds = nullptr;
const char* json_sts_options_file_path = nullptr;
const char* json_refresh_token_file_path = nullptr;
char* token = nullptr;
int use_gce = 0;
gpr_cmdline* cl = gpr_cmdline_create("fetch_oauth2");
gpr_cmdline_add_string(cl, "json_refresh_token",
"File path of the json refresh token.",
&json_refresh_token_file_path);
gpr_cmdline_add_string(
cl, "json_sts_options",
"File path of the json sts options. If the path is empty, the program "
"will attempt to use the $STS_CREDENTIALS environment variable to access "
"a file containing the options.",
&json_sts_options_file_path);
gpr_cmdline_add_flag(
cl, "gce",
"Get a token from the GCE metadata server (only works in GCE).",
&use_gce);
gpr_cmdline_parse(cl, argc, argv);
grpc_init();
if (json_sts_options_file_path != nullptr &&
json_refresh_token_file_path != nullptr) {
gpr_log(
GPR_ERROR,
"--json_sts_options and --json_refresh_token are mutually exclusive.");
exit(1);
}
if (use_gce) {
if (json_sts_options_file_path != nullptr ||
json_refresh_token_file_path != nullptr) {
gpr_log(GPR_INFO,
"Ignoring json refresh token or sts options to get a token from "
"the GCE metadata server.");
}
creds = grpc_google_compute_engine_credentials_create(nullptr);
if (creds == nullptr) {
gpr_log(GPR_ERROR, "Could not create gce credentials.");
exit(1);
}
} else if (json_refresh_token_file_path != nullptr) {
creds = create_refresh_token_creds(json_refresh_token_file_path);
if (creds == nullptr) {
gpr_log(GPR_ERROR,
"Could not create refresh token creds. %s does probably not "
"contain a valid json refresh token.",
json_refresh_token_file_path);
exit(1);
}
} else if (json_sts_options_file_path != nullptr) {
creds = create_sts_creds(json_sts_options_file_path);
if (creds == nullptr) {
gpr_log(GPR_ERROR,
"Could not create sts creds. %s does probably not contain a "
"valid json for sts options.",
json_sts_options_file_path);
exit(1);
}
} else {
gpr_log(
GPR_ERROR,
"Missing --gce, --json_sts_options, or --json_refresh_token option.");
exit(1);
}
GPR_ASSERT(creds != nullptr);
token = grpc_test_fetch_oauth2_token_with_credentials(creds);
if (token != nullptr) {
printf("Got token: %s.\n", token);
gpr_free(token);
}
grpc_call_credentials_release(creds);
gpr_cmdline_destroy(cl);
grpc_shutdown();
return 0;
}
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