static void test_pairs() {
unsigned i;
for (i = 0; i < GPR_ARRAY_SIZE(testing_pairs); i++) {
testing_pair *pair = testing_pairs + i;
char *scratchpad = gpr_strdup(pair->input);
grpc_json *json;
gpr_log(GPR_INFO, "parsing string %i - should %s", i,
pair->output ? "succeed" : "fail");
json = grpc_json_parse_string(scratchpad);
if (pair->output) {
char *output;
GPR_ASSERT(json);
output = grpc_json_dump_to_string(json, 0);
GPR_ASSERT(output);
gpr_log(GPR_INFO, "succeeded with output = %s", output);
GPR_ASSERT(strcmp(output, pair->output) == 0);
grpc_json_destroy(json);
gpr_free(output);
} else {
gpr_log(GPR_INFO, "failed");
GPR_ASSERT(!json);
}
gpr_free(scratchpad);
}
}
grpc_auth_json_key grpc_auth_json_key_create_from_string(
const char *json_string) {
char *scratchpad = gpr_strdup(json_string);
grpc_json *json = grpc_json_parse_string(scratchpad);
grpc_auth_json_key result = grpc_auth_json_key_create_from_json(json);
if (json != NULL) grpc_json_destroy(json);
gpr_free(scratchpad);
return result;
}
grpc_auth_json_key grpc_auth_json_key_create_from_string(
const char *json_string) {
grpc_auth_json_key result;
char *scratchpad = gpr_strdup(json_string);
grpc_json *json = grpc_json_parse_string(scratchpad);
BIO *bio = NULL;
const char *prop_value;
int success = 0;
memset(&result, 0, sizeof(grpc_auth_json_key));
result.type = GRPC_AUTH_JSON_TYPE_INVALID;
if (json == NULL) {
gpr_log(GPR_ERROR, "Invalid json string %s", json_string);
goto end;
}
prop_value = json_get_string_property(json, "type");
if (prop_value == NULL ||
strcmp(prop_value, GRPC_AUTH_JSON_TYPE_SERVICE_ACCOUNT)) {
goto end;
}
result.type = GRPC_AUTH_JSON_TYPE_SERVICE_ACCOUNT;
if (!set_json_key_string_property(json, "private_key_id",
&result.private_key_id) ||
!set_json_key_string_property(json, "client_id", &result.client_id) ||
!set_json_key_string_property(json, "client_email",
&result.client_email)) {
goto end;
}
prop_value = json_get_string_property(json, "private_key");
if (prop_value == NULL) {
goto end;
}
bio = BIO_new(BIO_s_mem());
success = BIO_puts(bio, prop_value);
if ((success < 0) || ((size_t)success != strlen(prop_value))) {
gpr_log(GPR_ERROR, "Could not write into openssl BIO.");
goto end;
}
result.private_key = PEM_read_bio_RSAPrivateKey(bio, NULL, NULL, "");
if (result.private_key == NULL) {
gpr_log(GPR_ERROR, "Could not deserialize private key.");
goto end;
}
success = 1;
end:
if (bio != NULL) BIO_free(bio);
if (json != NULL) grpc_json_destroy(json);
if (!success) grpc_auth_json_key_destruct(&result);
gpr_free(scratchpad);
return result;
}
grpc_service_config* grpc_service_config_create(const char* json_string) {
grpc_service_config* service_config = gpr_malloc(sizeof(*service_config));
service_config->json_string = gpr_strdup(json_string);
service_config->json_tree =
grpc_json_parse_string(service_config->json_string);
if (service_config->json_tree == NULL) {
gpr_log(GPR_INFO, "failed to parse JSON for service config");
gpr_free(service_config->json_string);
gpr_free(service_config);
return NULL;
}
return service_config;
}
static void test_atypical() {
char *scratchpad = gpr_strdup("[[],[]]");
grpc_json *json = grpc_json_parse_string(scratchpad);
grpc_json *brother;
GPR_ASSERT(json);
GPR_ASSERT(json->child);
brother = json->child->next;
grpc_json_destroy(json->child);
json->child = brother;
grpc_json_destroy(json);
gpr_free(scratchpad);
}
static grpc_json *parse_json_part_from_jwt(const char *str, size_t len,
char **scratchpad) {
char *b64;
char *decoded;
grpc_json *json;
gpr_slice slice;
b64 = gpr_malloc(len + 1);
strncpy(b64, str, len);
b64[len] = '\0';
slice = grpc_base64_decode(b64, 1);
GPR_ASSERT(!GPR_SLICE_IS_EMPTY(slice));
decoded = gpr_malloc(GPR_SLICE_LENGTH(slice) + 1);
strncpy(decoded, (const char *)GPR_SLICE_START_PTR(slice),
GPR_SLICE_LENGTH(slice));
decoded[GPR_SLICE_LENGTH(slice)] = '\0';
json = grpc_json_parse_string(decoded);
gpr_free(b64);
*scratchpad = decoded;
gpr_slice_unref(slice);
return json;
}
static char *redact_private_key(const char *json_key) {
char *json_copy = gpr_strdup(json_key);
grpc_json *json = grpc_json_parse_string(json_copy);
if (!json) {
gpr_free(json_copy);
return gpr_strdup("<Json failed to parse.>");
}
const char *redacted = "<redacted>";
grpc_json *current = json->child;
while (current) {
if (current->type == GRPC_JSON_STRING &&
strcmp(current->key, "private_key") == 0) {
current->value = (char *)redacted;
break;
}
current = current->next;
}
char *clean_json = grpc_json_dump_to_string(json, 2);
gpr_free(json_copy);
grpc_json_destroy(json);
return clean_json;
}
grpc_auth_refresh_token grpc_auth_refresh_token_create_from_string(
const char *json_string) {
grpc_auth_refresh_token result;
char *scratchpad = gpr_strdup(json_string);
grpc_json *json = grpc_json_parse_string(scratchpad);
const char *prop_value;
int success = 0;
memset(&result, 0, sizeof(grpc_auth_refresh_token));
result.type = GRPC_AUTH_JSON_TYPE_INVALID;
if (json == NULL) {
gpr_log(GPR_ERROR, "Invalid json string %s", json_string);
goto end;
}
prop_value = json_get_string_property(json, "type");
if (prop_value == NULL ||
strcmp(prop_value, GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER)) {
goto end;
}
result.type = GRPC_AUTH_JSON_TYPE_AUTHORIZED_USER;
if (!set_json_key_string_property(json, "client_secret",
&result.client_secret) ||
!set_json_key_string_property(json, "client_id", &result.client_id) ||
!set_json_key_string_property(json, "refresh_token",
&result.refresh_token)) {
goto end;
}
success = 1;
end:
if (json != NULL) grpc_json_destroy(json);
if (!success) grpc_auth_refresh_token_destruct(&result);
gpr_free(scratchpad);
return result;
}
grpc_credentials_status
grpc_oauth2_token_fetcher_credentials_parse_server_response(
const grpc_httpcli_response *response, grpc_credentials_md_store **token_md,
gpr_timespec *token_lifetime) {
char *null_terminated_body = NULL;
char *new_access_token = NULL;
grpc_credentials_status status = GRPC_CREDENTIALS_OK;
grpc_json *json = NULL;
if (response == NULL) {
gpr_log(GPR_ERROR, "Received NULL response.");
status = GRPC_CREDENTIALS_ERROR;
goto end;
}
if (response->body_length > 0) {
null_terminated_body = gpr_malloc(response->body_length + 1);
null_terminated_body[response->body_length] = '\0';
memcpy(null_terminated_body, response->body, response->body_length);
}
if (response->status != 200) {
gpr_log(GPR_ERROR, "Call to http server ended with error %d [%s].",
response->status,
null_terminated_body != NULL ? null_terminated_body : "");
status = GRPC_CREDENTIALS_ERROR;
goto end;
} else {
grpc_json *access_token = NULL;
grpc_json *token_type = NULL;
grpc_json *expires_in = NULL;
grpc_json *ptr;
json = grpc_json_parse_string(null_terminated_body);
if (json == NULL) {
gpr_log(GPR_ERROR, "Could not parse JSON from %s", null_terminated_body);
status = GRPC_CREDENTIALS_ERROR;
goto end;
}
if (json->type != GRPC_JSON_OBJECT) {
gpr_log(GPR_ERROR, "Response should be a JSON object");
status = GRPC_CREDENTIALS_ERROR;
goto end;
}
for (ptr = json->child; ptr; ptr = ptr->next) {
if (strcmp(ptr->key, "access_token") == 0) {
access_token = ptr;
} else if (strcmp(ptr->key, "token_type") == 0) {
token_type = ptr;
} else if (strcmp(ptr->key, "expires_in") == 0) {
expires_in = ptr;
}
}
if (access_token == NULL || access_token->type != GRPC_JSON_STRING) {
gpr_log(GPR_ERROR, "Missing or invalid access_token in JSON.");
status = GRPC_CREDENTIALS_ERROR;
goto end;
}
if (token_type == NULL || token_type->type != GRPC_JSON_STRING) {
gpr_log(GPR_ERROR, "Missing or invalid token_type in JSON.");
status = GRPC_CREDENTIALS_ERROR;
goto end;
}
if (expires_in == NULL || expires_in->type != GRPC_JSON_NUMBER) {
gpr_log(GPR_ERROR, "Missing or invalid expires_in in JSON.");
status = GRPC_CREDENTIALS_ERROR;
goto end;
}
gpr_asprintf(&new_access_token, "%s %s", token_type->value,
access_token->value);
token_lifetime->tv_sec = strtol(expires_in->value, NULL, 10);
token_lifetime->tv_nsec = 0;
if (*token_md != NULL) grpc_credentials_md_store_unref(*token_md);
*token_md = grpc_credentials_md_store_create(1);
grpc_credentials_md_store_add_cstrings(
*token_md, GRPC_AUTHORIZATION_METADATA_KEY, new_access_token);
status = GRPC_CREDENTIALS_OK;
}
end:
if (status != GRPC_CREDENTIALS_OK && (*token_md != NULL)) {
grpc_credentials_md_store_unref(*token_md);
*token_md = NULL;
}
if (null_terminated_body != NULL) gpr_free(null_terminated_body);
if (new_access_token != NULL) gpr_free(new_access_token);
if (json != NULL) grpc_json_destroy(json);
return status;
}