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/*
*
* Copyright 2015-2016, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#include <stdio.h>
#include <string.h>
#include "src/core/lib/security/credentials.h"
#include "src/core/lib/security/json_token.h"
#include "src/core/lib/support/load_file.h"
#include <grpc/support/alloc.h>
#include <grpc/support/cmdline.h>
#include <grpc/support/log.h>
#include <grpc/support/slice.h>
void create_jwt(const char *json_key_file_path, const char *service_url,
const char *scope) {
grpc_auth_json_key key;
int ok = 0;
char *jwt;
gpr_slice json_key_data = gpr_load_file(json_key_file_path, 1, &ok);
if (!ok) {
fprintf(stderr, "Could not read %s.\n", json_key_file_path);
exit(1);
}
key = grpc_auth_json_key_create_from_string(
(const char *)GPR_SLICE_START_PTR(json_key_data));
gpr_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 == NULL ? GRPC_JWT_OAUTH2_AUDIENCE : service_url,
grpc_max_auth_token_lifetime(), scope);
grpc_auth_json_key_destruct(&key);
if (jwt == NULL) {
fprintf(stderr, "Could not create JWT.\n");
exit(1);
}
fprintf(stdout, "%s\n", jwt);
gpr_free(jwt);
}
int main(int argc, char **argv) {
char *scope = NULL;
char *json_key_file_path = NULL;
char *service_url = NULL;
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 == NULL) {
fprintf(stderr, "Missing --json_key option.\n");
exit(1);
}
if (scope != NULL) {
if (service_url != NULL) {
fprintf(stderr,
"Options --scope and --service_url are mutually exclusive.\n");
exit(1);
}
} else if (service_url == NULL) {
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);
return 0;
}
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