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/*
*
* Copyright 2015, 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 <grpc/grpc.h>
#include <grpc/grpc_security.h>
#include <grpc/support/alloc.h>
#include <grpc/support/cmdline.h>
#include <grpc/support/log.h>
#include <grpc/support/slice.h>
#include <grpc/support/sync.h>
#include "src/core/security/credentials.h"
#include "src/core/support/file.h"
#include "test/core/security/oauth2_utils.h"
static grpc_credentials *create_service_account_creds(
const char *json_key_file_path, const char *scope) {
int success;
gpr_slice json_key = gpr_load_file(json_key_file_path, 1, &success);
if (!success) {
gpr_log(GPR_ERROR, "Could not read file %s.", json_key_file_path);
exit(1);
}
return grpc_service_account_credentials_create(
(const char *)GPR_SLICE_START_PTR(json_key), scope,
grpc_max_auth_token_lifetime);
}
static grpc_credentials *create_refresh_token_creds(
const char *json_refresh_token_file_path) {
int success;
gpr_slice refresh_token =
gpr_load_file(json_refresh_token_file_path, 1, &success);
if (!success) {
gpr_log(GPR_ERROR, "Could not read file %s.", json_refresh_token_file_path);
exit(1);
}
return grpc_refresh_token_credentials_create(
(const char *)GPR_SLICE_START_PTR(refresh_token));
}
int main(int argc, char **argv) {
grpc_credentials *creds = NULL;
char *json_key_file_path = NULL;
char *json_refresh_token_file_path = NULL;
char *token = NULL;
int use_gce = 0;
char *scope = NULL;
gpr_cmdline *cl = gpr_cmdline_create("fetch_oauth2");
gpr_cmdline_add_string(cl, "json_key",
"File path of the json key. Mutually exclusive with "
"--json_refresh_token.",
&json_key_file_path);
gpr_cmdline_add_string(cl, "json_refresh_token",
"File path of the json refresh token. Mutually "
"exclusive with --json_key.",
&json_refresh_token_file_path);
gpr_cmdline_add_string(cl, "scope",
"Space delimited permissions. Only used for "
"--json_key, ignored otherwise.",
&scope);
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_key_file_path != NULL && json_refresh_token_file_path != NULL) {
gpr_log(GPR_ERROR,
"--json_key and --json_refresh_token are mutually exclusive.");
exit(1);
}
if (use_gce) {
if (json_key_file_path != NULL || scope != NULL) {
gpr_log(GPR_INFO,
"Ignoring json key and scope to get a token from the GCE "
"metadata server.");
}
creds = grpc_compute_engine_credentials_create();
if (creds == NULL) {
gpr_log(GPR_ERROR, "Could not create gce credentials.");
exit(1);
}
} else if (json_refresh_token_file_path != NULL) {
creds = create_refresh_token_creds(json_refresh_token_file_path);
if (creds == NULL) {
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_key_file_path == NULL) {
gpr_log(GPR_ERROR, "Missing --json_key option.");
exit(1);
}
if (scope == NULL) {
gpr_log(GPR_ERROR, "Missing --scope option.");
exit(1);
}
creds = create_service_account_creds(json_key_file_path, scope);
if (creds == NULL) {
gpr_log(GPR_ERROR,
"Could not create service account creds. %s does probably not "
"contain a valid json key.",
json_key_file_path);
exit(1);
}
}
GPR_ASSERT(creds != NULL);
token = grpc_test_fetch_oauth2_token_with_credentials(creds);
if (token != NULL) {
printf("Got token: %s.\n", token);
gpr_free(token);
}
grpc_credentials_release(creds);
gpr_cmdline_destroy(cl);
grpc_shutdown();
return 0;
}
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