| /* |
| * |
| * 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 "src/core/lib/iomgr/load_file.h" |
| #include "src/core/lib/security/credentials/jwt/jwt_credentials.h" |
| |
| #include <grpc/slice.h> |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/cmdline.h> |
| #include <grpc/support/log.h> |
| |
| void create_jwt(const char* json_key_file_path, const char* service_url, |
| const char* scope) { |
| grpc_auth_json_key key; |
| char* jwt; |
| grpc_slice json_key_data; |
| GPR_ASSERT(GRPC_LOG_IF_ERROR( |
| "load_file", grpc_load_file(json_key_file_path, 1, &json_key_data))); |
| key = grpc_auth_json_key_create_from_string( |
| (const char*)GRPC_SLICE_START_PTR(json_key_data)); |
| grpc_slice_unref(json_key_data); |
| if (!grpc_auth_json_key_is_valid(&key)) { |
| fprintf(stderr, "Could not parse json key.\n"); |
| exit(1); |
| } |
| jwt = grpc_jwt_encode_and_sign( |
| &key, service_url == nullptr ? GRPC_JWT_OAUTH2_AUDIENCE : service_url, |
| grpc_max_auth_token_lifetime(), scope); |
| grpc_auth_json_key_destruct(&key); |
| if (jwt == nullptr) { |
| fprintf(stderr, "Could not create JWT.\n"); |
| exit(1); |
| } |
| fprintf(stdout, "%s\n", jwt); |
| gpr_free(jwt); |
| } |
| |
| int main(int argc, char** argv) { |
| const char* scope = nullptr; |
| const char* json_key_file_path = nullptr; |
| const char* service_url = nullptr; |
| grpc_init(); |
| gpr_cmdline* cl = gpr_cmdline_create("create_jwt"); |
| gpr_cmdline_add_string(cl, "json_key", "File path of the json key.", |
| &json_key_file_path); |
| gpr_cmdline_add_string(cl, "scope", |
| "OPTIONAL Space delimited permissions. Mutually " |
| "exclusive with service_url", |
| &scope); |
| gpr_cmdline_add_string(cl, "service_url", |
| "OPTIONAL service URL. Mutually exclusive with scope.", |
| &service_url); |
| gpr_cmdline_parse(cl, argc, argv); |
| |
| if (json_key_file_path == nullptr) { |
| fprintf(stderr, "Missing --json_key option.\n"); |
| exit(1); |
| } |
| if (scope != nullptr) { |
| if (service_url != nullptr) { |
| fprintf(stderr, |
| "Options --scope and --service_url are mutually exclusive.\n"); |
| exit(1); |
| } |
| } else if (service_url == nullptr) { |
| fprintf(stderr, "Need one of --service_url or --scope options.\n"); |
| exit(1); |
| } |
| |
| create_jwt(json_key_file_path, service_url, scope); |
| |
| gpr_cmdline_destroy(cl); |
| grpc_shutdown(); |
| return 0; |
| } |