| /* |
| * |
| * 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/cmdline.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/sync.h> |
| |
| #include "src/core/lib/security/credentials/jwt/jwt_verifier.h" |
| |
| typedef struct { |
| grpc_pollset *pollset; |
| gpr_mu *mu; |
| int is_done; |
| int success; |
| } synchronizer; |
| |
| static void print_usage_and_exit(gpr_cmdline *cl, const char *argv0) { |
| char *usage = gpr_cmdline_usage_string(cl, argv0); |
| fprintf(stderr, "%s", usage); |
| gpr_free(usage); |
| gpr_cmdline_destroy(cl); |
| exit(1); |
| } |
| |
| static void on_jwt_verification_done(grpc_exec_ctx *exec_ctx, void *user_data, |
| grpc_jwt_verifier_status status, |
| grpc_jwt_claims *claims) { |
| synchronizer *sync = user_data; |
| |
| sync->success = (status == GRPC_JWT_VERIFIER_OK); |
| if (sync->success) { |
| char *claims_str; |
| GPR_ASSERT(claims != NULL); |
| claims_str = |
| grpc_json_dump_to_string((grpc_json *)grpc_jwt_claims_json(claims), 2); |
| printf("Claims: \n\n%s\n", claims_str); |
| gpr_free(claims_str); |
| grpc_jwt_claims_destroy(exec_ctx, claims); |
| } else { |
| GPR_ASSERT(claims == NULL); |
| fprintf(stderr, "Verification failed with error %s\n", |
| grpc_jwt_verifier_status_to_string(status)); |
| } |
| |
| gpr_mu_lock(sync->mu); |
| sync->is_done = 1; |
| GRPC_LOG_IF_ERROR("pollset_kick", |
| grpc_pollset_kick(exec_ctx, sync->pollset, NULL)); |
| gpr_mu_unlock(sync->mu); |
| } |
| |
| int main(int argc, char **argv) { |
| synchronizer sync; |
| grpc_jwt_verifier *verifier; |
| gpr_cmdline *cl; |
| char *jwt = NULL; |
| char *aud = NULL; |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| |
| grpc_init(); |
| cl = gpr_cmdline_create("JWT verifier tool"); |
| gpr_cmdline_add_string(cl, "jwt", "JSON web token to verify", &jwt); |
| gpr_cmdline_add_string(cl, "aud", "Audience for the JWT", &aud); |
| gpr_cmdline_parse(cl, argc, argv); |
| if (jwt == NULL || aud == NULL) { |
| print_usage_and_exit(cl, argv[0]); |
| } |
| |
| verifier = grpc_jwt_verifier_create(NULL, 0); |
| |
| grpc_init(); |
| |
| sync.pollset = gpr_zalloc(grpc_pollset_size()); |
| grpc_pollset_init(sync.pollset, &sync.mu); |
| sync.is_done = 0; |
| |
| grpc_jwt_verifier_verify(&exec_ctx, verifier, sync.pollset, jwt, aud, |
| on_jwt_verification_done, &sync); |
| |
| gpr_mu_lock(sync.mu); |
| while (!sync.is_done) { |
| grpc_pollset_worker *worker = NULL; |
| if (!GRPC_LOG_IF_ERROR( |
| "pollset_work", |
| grpc_pollset_work(&exec_ctx, sync.pollset, &worker, |
| gpr_now(GPR_CLOCK_MONOTONIC), |
| gpr_inf_future(GPR_CLOCK_MONOTONIC)))) |
| sync.is_done = true; |
| gpr_mu_unlock(sync.mu); |
| grpc_exec_ctx_flush(&exec_ctx); |
| gpr_mu_lock(sync.mu); |
| } |
| gpr_mu_unlock(sync.mu); |
| |
| gpr_free(sync.pollset); |
| |
| grpc_jwt_verifier_destroy(&exec_ctx, verifier); |
| grpc_exec_ctx_finish(&exec_ctx); |
| gpr_cmdline_destroy(cl); |
| grpc_shutdown(); |
| return !sync.success; |
| } |