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credentials_test.c
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credentials_test.c
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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 <grpc/support/port_platform.h>
#include "src/core/lib/security/credentials.h"
#include <openssl/rsa.h>
#include <stdlib.h>
#include <string.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/string_util.h>
#include <grpc/support/time.h>
#include "src/core/lib/http/httpcli.h"
#include "src/core/lib/security/json_token.h"
#include "src/core/lib/support/env.h"
#include "src/core/lib/support/string.h"
#include "src/core/lib/support/tmpfile.h"
#include "test/core/util/test_config.h"
/* -- Mock channel credentials. -- */
static grpc_channel_credentials *grpc_mock_channel_credentials_create(
const grpc_channel_credentials_vtable *vtable) {
grpc_channel_credentials *c = gpr_malloc(sizeof(*c));
memset(c, 0, sizeof(*c));
c->type = "mock";
c->vtable = vtable;
gpr_ref_init(&c->refcount, 1);
return c;
}
/* -- Constants. -- */
static const char test_google_iam_authorization_token[] = "blahblahblhahb";
static const char test_google_iam_authority_selector[] = "respectmyauthoritah";
static const char test_oauth2_bearer_token[] =
"Bearer blaaslkdjfaslkdfasdsfasf";
/* This JSON key was generated with the GCE console and revoked immediately.
The identifiers have been changed as well.
Maximum size for a string literal is 509 chars in C89, yay! */
static const char test_json_key_str_part1[] =
"{ \"private_key\": \"-----BEGIN PRIVATE KEY-----"
"\\nMIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBAOEvJsnoHnyHkXcp\\n7mJE"
"qg"
"WGjiw71NfXByguekSKho65FxaGbsnSM9SMQAqVk7Q2rG+I0OpsT0LrWQtZ\\nyjSeg/"
"rWBQvS4hle4LfijkP3J5BG+"
"IXDMP8RfziNRQsenAXDNPkY4kJCvKux2xdD\\nOnVF6N7dL3nTYZg+"
"uQrNsMTz9UxVAgMBAAECgYEAzbLewe1xe9vy+2GoSsfib+28\\nDZgSE6Bu/"
"zuFoPrRc6qL9p2SsnV7txrunTyJkkOnPLND9ABAXybRTlcVKP/sGgza\\n/"
"8HpCqFYM9V8f34SBWfD4fRFT+n/"
"73cfRUtGXdXpseva2lh8RilIQfPhNZAncenU\\ngqXjDvpkypEusgXAykECQQD+";
static const char test_json_key_str_part2[] =
"53XxNVnxBHsYb+AYEfklR96yVi8HywjVHP34+OQZ\\nCslxoHQM8s+"
"dBnjfScLu22JqkPv04xyxmt0QAKm9+vTdAkEA4ib7YvEAn2jXzcCI\\nEkoy2L/"
"XydR1GCHoacdfdAwiL2npOdnbvi4ZmdYRPY1LSTO058tQHKVXV7NLeCa3\\nAARh2QJBAMKeDA"
"G"
"W303SQv2cZTdbeaLKJbB5drz3eo3j7dDKjrTD9JupixFbzcGw\\n8FZi5c8idxiwC36kbAL6Hz"
"A"
"ZoX+ofI0CQE6KCzPJTtYNqyShgKAZdJ8hwOcvCZtf\\n6z8RJm0+"
"6YBd38lfh5j8mZd7aHFf6I17j5AQY7oPEc47TjJj/"
"5nZ68ECQQDvYuI3\\nLyK5fS8g0SYbmPOL9TlcHDOqwG0mrX9qpg5DC2fniXNSrrZ64GTDKdzZ"
"Y"
"Ap6LI9W\\nIqv4vr6y38N79TTC\\n-----END PRIVATE KEY-----\\n\", ";
static const char test_json_key_str_part3[] =
"\"private_key_id\": \"e6b5137873db8d2ef81e06a47289e6434ec8a165\", "
"\"client_email\": "
"\"777-abaslkan11hlb6nmim3bpspl31ud@developer.gserviceaccount."
"com\", \"client_id\": "
"\"777-abaslkan11hlb6nmim3bpspl31ud.apps.googleusercontent."
"com\", \"type\": \"service_account\" }";
/* Test refresh token. */
static const char test_refresh_token_str[] =
"{ \"client_id\": \"32555999999.apps.googleusercontent.com\","
" \"client_secret\": \"EmssLNjJy1332hD4KFsecret\","
" \"refresh_token\": \"1/Blahblasj424jladJDSGNf-u4Sua3HDA2ngjd42\","
" \"type\": \"authorized_user\"}";
static const char valid_oauth2_json_response[] =
"{\"access_token\":\"ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_\","
" \"expires_in\":3599, "
" \"token_type\":\"Bearer\"}";
static const char test_user_data[] = "user data";
static const char test_scope[] = "perm1 perm2";
static const char test_signed_jwt[] =
"eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCIsImtpZCI6ImY0OTRkN2M1YWU2MGRmOTcyNmM4YW"
"U0MDcyZTViYTdmZDkwODg2YzcifQ";
static const char test_service_url[] = "https://foo.com/foo.v1";
static const char other_test_service_url[] = "https://bar.com/bar.v1";
static const char test_method[] = "ThisIsNotAMethod";
/* -- Utils. -- */
static char *test_json_key_str(void) {
size_t result_len = strlen(test_json_key_str_part1) +
strlen(test_json_key_str_part2) +
strlen(test_json_key_str_part3);
char *result = gpr_malloc(result_len + 1);
char *current = result;
strcpy(result, test_json_key_str_part1);
current += strlen(test_json_key_str_part1);
strcpy(current, test_json_key_str_part2);
current += strlen(test_json_key_str_part2);
strcpy(current, test_json_key_str_part3);
return result;
}
typedef struct {
const char *key;
const char *value;
} expected_md;
static grpc_httpcli_response http_response(int status, const char *body) {
grpc_httpcli_response response;
memset(&response, 0, sizeof(grpc_httpcli_response));
response.status = status;
response.body = (char *)body;
response.body_length = strlen(body);
return response;
}
/* -- Tests. -- */
static void test_empty_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(0);
GPR_ASSERT(store->num_entries == 0);
GPR_ASSERT(store->allocated == 0);
grpc_credentials_md_store_unref(store);
}
static void test_ref_unref_empty_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(0);
grpc_credentials_md_store_ref(store);
grpc_credentials_md_store_ref(store);
GPR_ASSERT(store->num_entries == 0);
GPR_ASSERT(store->allocated == 0);
grpc_credentials_md_store_unref(store);
grpc_credentials_md_store_unref(store);
grpc_credentials_md_store_unref(store);
}
static void test_add_to_empty_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(0);
const char *key_str = "hello";
const char *value_str = "there blah blah blah blah blah blah blah";
gpr_slice key = gpr_slice_from_copied_string(key_str);
gpr_slice value = gpr_slice_from_copied_string(value_str);
grpc_credentials_md_store_add(store, key, value);
GPR_ASSERT(store->num_entries == 1);
GPR_ASSERT(gpr_slice_cmp(key, store->entries[0].key) == 0);
GPR_ASSERT(gpr_slice_cmp(value, store->entries[0].value) == 0);
gpr_slice_unref(key);
gpr_slice_unref(value);
grpc_credentials_md_store_unref(store);
}
static void test_add_cstrings_to_empty_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(0);
const char *key_str = "hello";
const char *value_str = "there blah blah blah blah blah blah blah";
grpc_credentials_md_store_add_cstrings(store, key_str, value_str);
GPR_ASSERT(store->num_entries == 1);
GPR_ASSERT(gpr_slice_str_cmp(store->entries[0].key, key_str) == 0);
GPR_ASSERT(gpr_slice_str_cmp(store->entries[0].value, value_str) == 0);
grpc_credentials_md_store_unref(store);
}
static void test_empty_preallocated_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(4);
GPR_ASSERT(store->num_entries == 0);
GPR_ASSERT(store->allocated == 4);
GPR_ASSERT(store->entries != NULL);
grpc_credentials_md_store_unref(store);
}
static void test_add_abunch_to_md_store(void) {
grpc_credentials_md_store *store = grpc_credentials_md_store_create(4);
size_t num_entries = 1000;
const char *key_str = "hello";
const char *value_str = "there blah blah blah blah blah blah blah";
size_t i;
for (i = 0; i < num_entries; i++) {
grpc_credentials_md_store_add_cstrings(store, key_str, value_str);
}
for (i = 0; i < num_entries; i++) {
GPR_ASSERT(gpr_slice_str_cmp(store->entries[i].key, key_str) == 0);
GPR_ASSERT(gpr_slice_str_cmp(store->entries[i].value, value_str) == 0);
}
grpc_credentials_md_store_unref(store);
}
static void test_oauth2_token_fetcher_creds_parsing_ok(void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response =
http_response(200, valid_oauth2_json_response);
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) == GRPC_CREDENTIALS_OK);
GPR_ASSERT(token_lifetime.tv_sec == 3599);
GPR_ASSERT(token_lifetime.tv_nsec == 0);
GPR_ASSERT(token_md->num_entries == 1);
GPR_ASSERT(gpr_slice_str_cmp(token_md->entries[0].key, "authorization") == 0);
GPR_ASSERT(gpr_slice_str_cmp(token_md->entries[0].value,
"Bearer ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_") ==
0);
grpc_credentials_md_store_unref(token_md);
}
static void test_oauth2_token_fetcher_creds_parsing_bad_http_status(void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response =
http_response(401, valid_oauth2_json_response);
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) ==
GRPC_CREDENTIALS_ERROR);
}
static void test_oauth2_token_fetcher_creds_parsing_empty_http_body(void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response = http_response(200, "");
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) ==
GRPC_CREDENTIALS_ERROR);
}
static void test_oauth2_token_fetcher_creds_parsing_invalid_json(void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response =
http_response(200,
"{\"access_token\":\"ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_\","
" \"expires_in\":3599, "
" \"token_type\":\"Bearer\"");
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) ==
GRPC_CREDENTIALS_ERROR);
}
static void test_oauth2_token_fetcher_creds_parsing_missing_token(void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response = http_response(200,
"{"
" \"expires_in\":3599, "
" \"token_type\":\"Bearer\"}");
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) ==
GRPC_CREDENTIALS_ERROR);
}
static void test_oauth2_token_fetcher_creds_parsing_missing_token_type(void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response =
http_response(200,
"{\"access_token\":\"ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_\","
" \"expires_in\":3599, "
"}");
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) ==
GRPC_CREDENTIALS_ERROR);
}
static void test_oauth2_token_fetcher_creds_parsing_missing_token_lifetime(
void) {
grpc_credentials_md_store *token_md = NULL;
gpr_timespec token_lifetime;
grpc_httpcli_response response =
http_response(200,
"{\"access_token\":\"ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_\","
" \"token_type\":\"Bearer\"}");
GPR_ASSERT(grpc_oauth2_token_fetcher_credentials_parse_server_response(
&response, &token_md, &token_lifetime) ==
GRPC_CREDENTIALS_ERROR);
}
static void check_metadata(expected_md *expected, grpc_credentials_md *md_elems,
size_t num_md) {
size_t i;
for (i = 0; i < num_md; i++) {
size_t j;
for (j = 0; j < num_md; j++) {
if (0 == gpr_slice_str_cmp(md_elems[j].key, expected[i].key)) {
GPR_ASSERT(gpr_slice_str_cmp(md_elems[j].value, expected[i].value) ==
0);
break;
}
}
if (j == num_md) {
gpr_log(GPR_ERROR, "key %s not found", expected[i].key);
GPR_ASSERT(0);
}
}
}
static void check_google_iam_metadata(grpc_exec_ctx *exec_ctx, void *user_data,
grpc_credentials_md *md_elems,
size_t num_md,
grpc_credentials_status status) {
grpc_call_credentials *c = (grpc_call_credentials *)user_data;
expected_md emd[] = {{GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY,
test_google_iam_authorization_token},
{GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY,
test_google_iam_authority_selector}};
GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
GPR_ASSERT(num_md == 2);
check_metadata(emd, md_elems, num_md);
grpc_call_credentials_unref(c);
}
static void test_google_iam_creds(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_call_credentials *creds = grpc_google_iam_credentials_create(
test_google_iam_authorization_token, test_google_iam_authority_selector,
NULL);
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials_get_request_metadata(
&exec_ctx, creds, NULL, auth_md_ctx, check_google_iam_metadata, creds);
grpc_exec_ctx_finish(&exec_ctx);
}
static void check_access_token_metadata(grpc_exec_ctx *exec_ctx,
void *user_data,
grpc_credentials_md *md_elems,
size_t num_md,
grpc_credentials_status status) {
grpc_call_credentials *c = (grpc_call_credentials *)user_data;
expected_md emd[] = {{GRPC_AUTHORIZATION_METADATA_KEY, "Bearer blah"}};
GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
GPR_ASSERT(num_md == 1);
check_metadata(emd, md_elems, num_md);
grpc_call_credentials_unref(c);
}
static void test_access_token_creds(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_call_credentials *creds =
grpc_access_token_credentials_create("blah", NULL);
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
GPR_ASSERT(strcmp(creds->type, GRPC_CALL_CREDENTIALS_TYPE_OAUTH2) == 0);
grpc_call_credentials_get_request_metadata(
&exec_ctx, creds, NULL, auth_md_ctx, check_access_token_metadata, creds);
grpc_exec_ctx_finish(&exec_ctx);
}
static grpc_security_status check_channel_oauth2_create_security_connector(
grpc_channel_credentials *c, grpc_call_credentials *call_creds,
const char *target, const grpc_channel_args *args,
grpc_channel_security_connector **sc, grpc_channel_args **new_args) {
GPR_ASSERT(strcmp(c->type, "mock") == 0);
GPR_ASSERT(call_creds != NULL);
GPR_ASSERT(strcmp(call_creds->type, GRPC_CALL_CREDENTIALS_TYPE_OAUTH2) == 0);
return GRPC_SECURITY_OK;
}
static void test_channel_oauth2_composite_creds(void) {
grpc_channel_args *new_args;
grpc_channel_credentials_vtable vtable = {
NULL, check_channel_oauth2_create_security_connector};
grpc_channel_credentials *channel_creds =
grpc_mock_channel_credentials_create(&vtable);
grpc_call_credentials *oauth2_creds =
grpc_access_token_credentials_create("blah", NULL);
grpc_channel_credentials *channel_oauth2_creds =
grpc_composite_channel_credentials_create(channel_creds, oauth2_creds,
NULL);
grpc_channel_credentials_release(channel_creds);
grpc_call_credentials_release(oauth2_creds);
GPR_ASSERT(grpc_channel_credentials_create_security_connector(
channel_oauth2_creds, NULL, NULL, NULL, &new_args) ==
GRPC_SECURITY_OK);
grpc_channel_credentials_release(channel_oauth2_creds);
}
static void check_oauth2_google_iam_composite_metadata(
grpc_exec_ctx *exec_ctx, void *user_data, grpc_credentials_md *md_elems,
size_t num_md, grpc_credentials_status status) {
grpc_call_credentials *c = (grpc_call_credentials *)user_data;
expected_md emd[] = {
{GRPC_AUTHORIZATION_METADATA_KEY, test_oauth2_bearer_token},
{GRPC_IAM_AUTHORIZATION_TOKEN_METADATA_KEY,
test_google_iam_authorization_token},
{GRPC_IAM_AUTHORITY_SELECTOR_METADATA_KEY,
test_google_iam_authority_selector}};
GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
GPR_ASSERT(num_md == 3);
check_metadata(emd, md_elems, num_md);
grpc_call_credentials_unref(c);
}
static void test_oauth2_google_iam_composite_creds(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
const grpc_call_credentials_array *creds_array;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials *oauth2_creds = grpc_md_only_test_credentials_create(
"authorization", test_oauth2_bearer_token, 0);
grpc_call_credentials *google_iam_creds = grpc_google_iam_credentials_create(
test_google_iam_authorization_token, test_google_iam_authority_selector,
NULL);
grpc_call_credentials *composite_creds =
grpc_composite_call_credentials_create(oauth2_creds, google_iam_creds,
NULL);
grpc_call_credentials_unref(oauth2_creds);
grpc_call_credentials_unref(google_iam_creds);
GPR_ASSERT(
strcmp(composite_creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) == 0);
creds_array =
grpc_composite_call_credentials_get_credentials(composite_creds);
GPR_ASSERT(creds_array->num_creds == 2);
GPR_ASSERT(strcmp(creds_array->creds_array[0]->type,
GRPC_CALL_CREDENTIALS_TYPE_OAUTH2) == 0);
GPR_ASSERT(strcmp(creds_array->creds_array[1]->type,
GRPC_CALL_CREDENTIALS_TYPE_IAM) == 0);
grpc_call_credentials_get_request_metadata(
&exec_ctx, composite_creds, NULL, auth_md_ctx,
check_oauth2_google_iam_composite_metadata, composite_creds);
grpc_exec_ctx_finish(&exec_ctx);
}
static grpc_security_status
check_channel_oauth2_google_iam_create_security_connector(
grpc_channel_credentials *c, grpc_call_credentials *call_creds,
const char *target, const grpc_channel_args *args,
grpc_channel_security_connector **sc, grpc_channel_args **new_args) {
const grpc_call_credentials_array *creds_array;
GPR_ASSERT(strcmp(c->type, "mock") == 0);
GPR_ASSERT(call_creds != NULL);
GPR_ASSERT(strcmp(call_creds->type, GRPC_CALL_CREDENTIALS_TYPE_COMPOSITE) ==
0);
creds_array = grpc_composite_call_credentials_get_credentials(call_creds);
GPR_ASSERT(strcmp(creds_array->creds_array[0]->type,
GRPC_CALL_CREDENTIALS_TYPE_OAUTH2) == 0);
GPR_ASSERT(strcmp(creds_array->creds_array[1]->type,
GRPC_CALL_CREDENTIALS_TYPE_IAM) == 0);
return GRPC_SECURITY_OK;
}
static void test_channel_oauth2_google_iam_composite_creds(void) {
grpc_channel_args *new_args;
grpc_channel_credentials_vtable vtable = {
NULL, check_channel_oauth2_google_iam_create_security_connector};
grpc_channel_credentials *channel_creds =
grpc_mock_channel_credentials_create(&vtable);
grpc_call_credentials *oauth2_creds =
grpc_access_token_credentials_create("blah", NULL);
grpc_channel_credentials *channel_oauth2_creds =
grpc_composite_channel_credentials_create(channel_creds, oauth2_creds,
NULL);
grpc_call_credentials *google_iam_creds = grpc_google_iam_credentials_create(
test_google_iam_authorization_token, test_google_iam_authority_selector,
NULL);
grpc_channel_credentials *channel_oauth2_iam_creds =
grpc_composite_channel_credentials_create(channel_oauth2_creds,
google_iam_creds, NULL);
grpc_channel_credentials_release(channel_creds);
grpc_call_credentials_release(oauth2_creds);
grpc_channel_credentials_release(channel_oauth2_creds);
grpc_call_credentials_release(google_iam_creds);
GPR_ASSERT(grpc_channel_credentials_create_security_connector(
channel_oauth2_iam_creds, NULL, NULL, NULL, &new_args) ==
GRPC_SECURITY_OK);
grpc_channel_credentials_release(channel_oauth2_iam_creds);
}
static void on_oauth2_creds_get_metadata_success(
grpc_exec_ctx *exec_ctx, void *user_data, grpc_credentials_md *md_elems,
size_t num_md, grpc_credentials_status status) {
GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
GPR_ASSERT(num_md == 1);
GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].key, "authorization") == 0);
GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].value,
"Bearer ya29.AHES6ZRN3-HlhAPya30GnW_bHSb_") ==
0);
GPR_ASSERT(user_data != NULL);
GPR_ASSERT(strcmp((const char *)user_data, test_user_data) == 0);
}
static void on_oauth2_creds_get_metadata_failure(
grpc_exec_ctx *exec_ctx, void *user_data, grpc_credentials_md *md_elems,
size_t num_md, grpc_credentials_status status) {
GPR_ASSERT(status == GRPC_CREDENTIALS_ERROR);
GPR_ASSERT(num_md == 0);
GPR_ASSERT(user_data != NULL);
GPR_ASSERT(strcmp((const char *)user_data, test_user_data) == 0);
}
static void validate_compute_engine_http_request(
const grpc_httpcli_request *request) {
GPR_ASSERT(request->handshaker != &grpc_httpcli_ssl);
GPR_ASSERT(strcmp(request->host, "metadata") == 0);
GPR_ASSERT(
strcmp(request->http.path,
"/computeMetadata/v1/instance/service-accounts/default/token") ==
0);
GPR_ASSERT(request->http.hdr_count == 1);
GPR_ASSERT(strcmp(request->http.hdrs[0].key, "Metadata-Flavor") == 0);
GPR_ASSERT(strcmp(request->http.hdrs[0].value, "Google") == 0);
}
static int compute_engine_httpcli_get_success_override(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
gpr_timespec deadline, grpc_httpcli_response_cb on_response,
void *user_data) {
grpc_httpcli_response response =
http_response(200, valid_oauth2_json_response);
validate_compute_engine_http_request(request);
on_response(exec_ctx, user_data, &response);
return 1;
}
static int compute_engine_httpcli_get_failure_override(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
gpr_timespec deadline, grpc_httpcli_response_cb on_response,
void *user_data) {
grpc_httpcli_response response = http_response(403, "Not Authorized.");
validate_compute_engine_http_request(request);
on_response(exec_ctx, user_data, &response);
return 1;
}
static int httpcli_post_should_not_be_called(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
const char *body_bytes, size_t body_size, gpr_timespec deadline,
grpc_httpcli_response_cb on_response, void *user_data) {
GPR_ASSERT("HTTP POST should not be called" == NULL);
return 1;
}
static int httpcli_get_should_not_be_called(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
gpr_timespec deadline, grpc_httpcli_response_cb on_response,
void *user_data) {
GPR_ASSERT("HTTP GET should not be called" == NULL);
return 1;
}
static void test_compute_engine_creds_success(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_call_credentials *compute_engine_creds =
grpc_google_compute_engine_credentials_create(NULL);
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
/* First request: http get should be called. */
grpc_httpcli_set_override(compute_engine_httpcli_get_success_override,
httpcli_post_should_not_be_called);
grpc_call_credentials_get_request_metadata(
&exec_ctx, compute_engine_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
/* Second request: the cached token should be served directly. */
grpc_httpcli_set_override(httpcli_get_should_not_be_called,
httpcli_post_should_not_be_called);
grpc_call_credentials_get_request_metadata(
&exec_ctx, compute_engine_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_finish(&exec_ctx);
grpc_call_credentials_unref(compute_engine_creds);
grpc_httpcli_set_override(NULL, NULL);
}
static void test_compute_engine_creds_failure(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials *compute_engine_creds =
grpc_google_compute_engine_credentials_create(NULL);
grpc_httpcli_set_override(compute_engine_httpcli_get_failure_override,
httpcli_post_should_not_be_called);
grpc_call_credentials_get_request_metadata(
&exec_ctx, compute_engine_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_failure, (void *)test_user_data);
grpc_call_credentials_unref(compute_engine_creds);
grpc_httpcli_set_override(NULL, NULL);
grpc_exec_ctx_finish(&exec_ctx);
}
static void validate_refresh_token_http_request(
const grpc_httpcli_request *request, const char *body, size_t body_size) {
/* The content of the assertion is tested extensively in json_token_test. */
char *expected_body = NULL;
GPR_ASSERT(body != NULL);
GPR_ASSERT(body_size != 0);
gpr_asprintf(&expected_body, GRPC_REFRESH_TOKEN_POST_BODY_FORMAT_STRING,
"32555999999.apps.googleusercontent.com",
"EmssLNjJy1332hD4KFsecret",
"1/Blahblasj424jladJDSGNf-u4Sua3HDA2ngjd42");
GPR_ASSERT(strlen(expected_body) == body_size);
GPR_ASSERT(memcmp(expected_body, body, body_size) == 0);
gpr_free(expected_body);
GPR_ASSERT(request->handshaker == &grpc_httpcli_ssl);
GPR_ASSERT(strcmp(request->host, GRPC_GOOGLE_OAUTH2_SERVICE_HOST) == 0);
GPR_ASSERT(
strcmp(request->http.path, GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH) == 0);
GPR_ASSERT(request->http.hdr_count == 1);
GPR_ASSERT(strcmp(request->http.hdrs[0].key, "Content-Type") == 0);
GPR_ASSERT(strcmp(request->http.hdrs[0].value,
"application/x-www-form-urlencoded") == 0);
}
static int refresh_token_httpcli_post_success(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
const char *body, size_t body_size, gpr_timespec deadline,
grpc_httpcli_response_cb on_response, void *user_data) {
grpc_httpcli_response response =
http_response(200, valid_oauth2_json_response);
validate_refresh_token_http_request(request, body, body_size);
on_response(exec_ctx, user_data, &response);
return 1;
}
static int refresh_token_httpcli_post_failure(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
const char *body, size_t body_size, gpr_timespec deadline,
grpc_httpcli_response_cb on_response, void *user_data) {
grpc_httpcli_response response = http_response(403, "Not Authorized.");
validate_refresh_token_http_request(request, body, body_size);
on_response(exec_ctx, user_data, &response);
return 1;
}
static void test_refresh_token_creds_success(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials *refresh_token_creds =
grpc_google_refresh_token_credentials_create(test_refresh_token_str,
NULL);
/* First request: http get should be called. */
grpc_httpcli_set_override(httpcli_get_should_not_be_called,
refresh_token_httpcli_post_success);
grpc_call_credentials_get_request_metadata(
&exec_ctx, refresh_token_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
/* Second request: the cached token should be served directly. */
grpc_httpcli_set_override(httpcli_get_should_not_be_called,
httpcli_post_should_not_be_called);
grpc_call_credentials_get_request_metadata(
&exec_ctx, refresh_token_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
grpc_call_credentials_unref(refresh_token_creds);
grpc_httpcli_set_override(NULL, NULL);
grpc_exec_ctx_finish(&exec_ctx);
}
static void test_refresh_token_creds_failure(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials *refresh_token_creds =
grpc_google_refresh_token_credentials_create(test_refresh_token_str,
NULL);
grpc_httpcli_set_override(httpcli_get_should_not_be_called,
refresh_token_httpcli_post_failure);
grpc_call_credentials_get_request_metadata(
&exec_ctx, refresh_token_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_failure, (void *)test_user_data);
grpc_call_credentials_unref(refresh_token_creds);
grpc_httpcli_set_override(NULL, NULL);
grpc_exec_ctx_finish(&exec_ctx);
}
static void validate_jwt_encode_and_sign_params(
const grpc_auth_json_key *json_key, const char *scope,
gpr_timespec token_lifetime) {
GPR_ASSERT(grpc_auth_json_key_is_valid(json_key));
GPR_ASSERT(json_key->private_key != NULL);
GPR_ASSERT(RSA_check_key(json_key->private_key));
GPR_ASSERT(json_key->type != NULL &&
strcmp(json_key->type, "service_account") == 0);
GPR_ASSERT(json_key->private_key_id != NULL &&
strcmp(json_key->private_key_id,
"e6b5137873db8d2ef81e06a47289e6434ec8a165") == 0);
GPR_ASSERT(json_key->client_id != NULL &&
strcmp(json_key->client_id,
"777-abaslkan11hlb6nmim3bpspl31ud.apps."
"googleusercontent.com") == 0);
GPR_ASSERT(json_key->client_email != NULL &&
strcmp(json_key->client_email,
"777-abaslkan11hlb6nmim3bpspl31ud@developer."
"gserviceaccount.com") == 0);
if (scope != NULL) GPR_ASSERT(strcmp(scope, test_scope) == 0);
GPR_ASSERT(!gpr_time_cmp(token_lifetime, grpc_max_auth_token_lifetime()));
}
static char *encode_and_sign_jwt_success(const grpc_auth_json_key *json_key,
const char *audience,
gpr_timespec token_lifetime,
const char *scope) {
validate_jwt_encode_and_sign_params(json_key, scope, token_lifetime);
return gpr_strdup(test_signed_jwt);
}
static char *encode_and_sign_jwt_failure(const grpc_auth_json_key *json_key,
const char *audience,
gpr_timespec token_lifetime,
const char *scope) {
validate_jwt_encode_and_sign_params(json_key, scope, token_lifetime);
return NULL;
}
static char *encode_and_sign_jwt_should_not_be_called(
const grpc_auth_json_key *json_key, const char *audience,
gpr_timespec token_lifetime, const char *scope) {
GPR_ASSERT("grpc_jwt_encode_and_sign should not be called" == NULL);
return NULL;
}
static void on_jwt_creds_get_metadata_success(grpc_exec_ctx *exec_ctx,
void *user_data,
grpc_credentials_md *md_elems,
size_t num_md,
grpc_credentials_status status) {
char *expected_md_value;
gpr_asprintf(&expected_md_value, "Bearer %s", test_signed_jwt);
GPR_ASSERT(status == GRPC_CREDENTIALS_OK);
GPR_ASSERT(num_md == 1);
GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].key, "authorization") == 0);
GPR_ASSERT(gpr_slice_str_cmp(md_elems[0].value, expected_md_value) == 0);
GPR_ASSERT(user_data != NULL);
GPR_ASSERT(strcmp((const char *)user_data, test_user_data) == 0);
gpr_free(expected_md_value);
}
static void on_jwt_creds_get_metadata_failure(grpc_exec_ctx *exec_ctx,
void *user_data,
grpc_credentials_md *md_elems,
size_t num_md,
grpc_credentials_status status) {
GPR_ASSERT(status == GRPC_CREDENTIALS_ERROR);
GPR_ASSERT(num_md == 0);
GPR_ASSERT(user_data != NULL);
GPR_ASSERT(strcmp((const char *)user_data, test_user_data) == 0);
}
static void test_jwt_creds_success(void) {
char *json_key_string = test_json_key_str();
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials *jwt_creds =
grpc_service_account_jwt_access_credentials_create(
json_key_string, grpc_max_auth_token_lifetime(), NULL);
/* First request: jwt_encode_and_sign should be called. */
grpc_jwt_encode_and_sign_set_override(encode_and_sign_jwt_success);
grpc_call_credentials_get_request_metadata(
&exec_ctx, jwt_creds, NULL, auth_md_ctx,
on_jwt_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
/* Second request: the cached token should be served directly. */
grpc_jwt_encode_and_sign_set_override(
encode_and_sign_jwt_should_not_be_called);
grpc_call_credentials_get_request_metadata(
&exec_ctx, jwt_creds, NULL, auth_md_ctx,
on_jwt_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
/* Third request: Different service url so jwt_encode_and_sign should be
called again (no caching). */
auth_md_ctx.service_url = other_test_service_url;
grpc_jwt_encode_and_sign_set_override(encode_and_sign_jwt_success);
grpc_call_credentials_get_request_metadata(
&exec_ctx, jwt_creds, NULL, auth_md_ctx,
on_jwt_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
gpr_free(json_key_string);
grpc_call_credentials_unref(jwt_creds);
grpc_jwt_encode_and_sign_set_override(NULL);
}
static void test_jwt_creds_signing_failure(void) {
char *json_key_string = test_json_key_str();
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_call_credentials *jwt_creds =
grpc_service_account_jwt_access_credentials_create(
json_key_string, grpc_max_auth_token_lifetime(), NULL);
grpc_jwt_encode_and_sign_set_override(encode_and_sign_jwt_failure);
grpc_call_credentials_get_request_metadata(
&exec_ctx, jwt_creds, NULL, auth_md_ctx,
on_jwt_creds_get_metadata_failure, (void *)test_user_data);
gpr_free(json_key_string);
grpc_call_credentials_unref(jwt_creds);
grpc_jwt_encode_and_sign_set_override(NULL);
grpc_exec_ctx_finish(&exec_ctx);
}
static void set_google_default_creds_env_var_with_file_contents(
const char *file_prefix, const char *contents) {
size_t contents_len = strlen(contents);
char *creds_file_name;
FILE *creds_file = gpr_tmpfile(file_prefix, &creds_file_name);
GPR_ASSERT(creds_file_name != NULL);
GPR_ASSERT(creds_file != NULL);
GPR_ASSERT(fwrite(contents, 1, contents_len, creds_file) == contents_len);
fclose(creds_file);
gpr_setenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR, creds_file_name);
gpr_free(creds_file_name);
}
static void test_google_default_creds_auth_key(void) {
grpc_service_account_jwt_access_credentials *jwt;
grpc_composite_channel_credentials *creds;
char *json_key = test_json_key_str();
grpc_flush_cached_google_default_credentials();
set_google_default_creds_env_var_with_file_contents(
"json_key_google_default_creds", json_key);
gpr_free(json_key);
creds = (grpc_composite_channel_credentials *)
grpc_google_default_credentials_create();
GPR_ASSERT(creds != NULL);
jwt = (grpc_service_account_jwt_access_credentials *)creds->call_creds;
GPR_ASSERT(
strcmp(jwt->key.client_id,
"777-abaslkan11hlb6nmim3bpspl31ud.apps.googleusercontent.com") ==
0);
grpc_channel_credentials_unref(&creds->base);
gpr_setenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR, ""); /* Reset. */
}
static void test_google_default_creds_refresh_token(void) {
grpc_google_refresh_token_credentials *refresh;
grpc_composite_channel_credentials *creds;
grpc_flush_cached_google_default_credentials();
set_google_default_creds_env_var_with_file_contents(
"refresh_token_google_default_creds", test_refresh_token_str);
creds = (grpc_composite_channel_credentials *)
grpc_google_default_credentials_create();
GPR_ASSERT(creds != NULL);
refresh = (grpc_google_refresh_token_credentials *)creds->call_creds;
GPR_ASSERT(strcmp(refresh->refresh_token.client_id,
"32555999999.apps.googleusercontent.com") == 0);
grpc_channel_credentials_unref(&creds->base);
gpr_setenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR, ""); /* Reset. */
}
static int default_creds_gce_detection_httpcli_get_success_override(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
gpr_timespec deadline, grpc_httpcli_response_cb on_response,
void *user_data) {
grpc_httpcli_response response = http_response(200, "");
grpc_http_header header;
header.key = "Metadata-Flavor";
header.value = "Google";
response.hdr_count = 1;
response.hdrs = &header;
GPR_ASSERT(strcmp(request->http.path, "/") == 0);
GPR_ASSERT(strcmp(request->host, "metadata.google.internal") == 0);
on_response(exec_ctx, user_data, &response);
return 1;
}
static char *null_well_known_creds_path_getter(void) { return NULL; }
static void test_google_default_creds_gce(void) {
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_composite_channel_credentials *creds;
grpc_channel_credentials *cached_creds;
grpc_auth_metadata_context auth_md_ctx = {test_service_url, test_method, NULL,
NULL};
grpc_flush_cached_google_default_credentials();
gpr_setenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR, ""); /* Reset. */
grpc_override_well_known_credentials_path_getter(
null_well_known_creds_path_getter);
/* Simulate a successful detection of GCE. */
grpc_httpcli_set_override(
default_creds_gce_detection_httpcli_get_success_override,
httpcli_post_should_not_be_called);
creds = (grpc_composite_channel_credentials *)
grpc_google_default_credentials_create();
/* Verify that the default creds actually embeds a GCE creds. */
GPR_ASSERT(creds != NULL);
GPR_ASSERT(creds->call_creds != NULL);
grpc_httpcli_set_override(compute_engine_httpcli_get_success_override,
httpcli_post_should_not_be_called);
grpc_call_credentials_get_request_metadata(
&exec_ctx, creds->call_creds, NULL, auth_md_ctx,
on_oauth2_creds_get_metadata_success, (void *)test_user_data);
grpc_exec_ctx_flush(&exec_ctx);
grpc_exec_ctx_finish(&exec_ctx);
/* Check that we get a cached creds if we call
grpc_google_default_credentials_create again.
GCE detection should not occur anymore either. */
grpc_httpcli_set_override(httpcli_get_should_not_be_called,
httpcli_post_should_not_be_called);
cached_creds = grpc_google_default_credentials_create();
GPR_ASSERT(cached_creds == &creds->base);
/* Cleanup. */
grpc_channel_credentials_release(cached_creds);
grpc_channel_credentials_release(&creds->base);
grpc_httpcli_set_override(NULL, NULL);
grpc_override_well_known_credentials_path_getter(NULL);
}
static int default_creds_gce_detection_httpcli_get_failure_override(
grpc_exec_ctx *exec_ctx, const grpc_httpcli_request *request,
gpr_timespec deadline, grpc_httpcli_response_cb on_response,
void *user_data) {
/* No magic header. */
grpc_httpcli_response response = http_response(200, "");
GPR_ASSERT(strcmp(request->http.path, "/") == 0);
GPR_ASSERT(strcmp(request->host, "metadata.google.internal") == 0);
on_response(exec_ctx, user_data, &response);
return 1;
}
static void test_no_google_default_creds(void) {
grpc_flush_cached_google_default_credentials();
gpr_setenv(GRPC_GOOGLE_CREDENTIALS_ENV_VAR, ""); /* Reset. */
grpc_override_well_known_credentials_path_getter(
null_well_known_creds_path_getter);
/* Simulate a successful detection of GCE. */
grpc_httpcli_set_override(
default_creds_gce_detection_httpcli_get_failure_override,
httpcli_post_should_not_be_called);
GPR_ASSERT(grpc_google_default_credentials_create() == NULL);
/* Try a cached one. GCE detection should not occur anymore. */
grpc_httpcli_set_override(httpcli_get_should_not_be_called,
httpcli_post_should_not_be_called);
GPR_ASSERT(grpc_google_default_credentials_create() == NULL);
/* Cleanup. */
grpc_httpcli_set_override(NULL, NULL);
grpc_override_well_known_credentials_path_getter(NULL);
}
typedef enum {
PLUGIN_INITIAL_STATE,
PLUGIN_GET_METADATA_CALLED_STATE,
PLUGIN_DESTROY_CALLED_STATE
} plugin_state;
typedef struct {
const char *key;