static grpc_security_status composite_channel_create_security_connector(
grpc_channel_credentials *creds, grpc_call_credentials *call_creds,
const char *target, const grpc_channel_args *args,
grpc_channel_security_connector **sc, grpc_channel_args **new_args) {
grpc_composite_channel_credentials *c =
(grpc_composite_channel_credentials *)creds;
grpc_security_status status = GRPC_SECURITY_ERROR;
GPR_ASSERT(c->inner_creds != NULL && c->call_creds != NULL &&
c->inner_creds->vtable != NULL &&
c->inner_creds->vtable->create_security_connector != NULL);
/* If we are passed a call_creds, create a call composite to pass it
downstream. */
if (call_creds != NULL) {
grpc_call_credentials *composite_call_creds =
grpc_composite_call_credentials_create(c->call_creds, call_creds, NULL);
status = c->inner_creds->vtable->create_security_connector(
c->inner_creds, composite_call_creds, target, args, sc, new_args);
grpc_call_credentials_unref(composite_call_creds);
} else {
status = c->inner_creds->vtable->create_security_connector(
c->inner_creds, c->call_creds, target, args, sc, new_args);
}
return status;
}
static void send_security_metadata(grpc_exec_ctx *exec_ctx,
grpc_call_element *elem,
grpc_transport_stream_op_batch *batch) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
grpc_client_security_context *ctx =
(grpc_client_security_context *)batch->payload
->context[GRPC_CONTEXT_SECURITY]
.value;
grpc_call_credentials *channel_call_creds =
chand->security_connector->request_metadata_creds;
int call_creds_has_md = (ctx != NULL) && (ctx->creds != NULL);
if (channel_call_creds == NULL && !call_creds_has_md) {
/* Skip sending metadata altogether. */
grpc_call_next_op(exec_ctx, elem, batch);
return;
}
if (channel_call_creds != NULL && call_creds_has_md) {
calld->creds = grpc_composite_call_credentials_create(channel_call_creds,
ctx->creds, NULL);
if (calld->creds == NULL) {
grpc_transport_stream_op_batch_finish_with_failure(
exec_ctx, batch,
grpc_error_set_int(
GRPC_ERROR_CREATE_FROM_STATIC_STRING(
"Incompatible credentials set on channel and call."),
GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAUTHENTICATED));
return;
}
} else {
calld->creds = grpc_call_credentials_ref(
call_creds_has_md ? ctx->creds : channel_call_creds);
}
build_auth_metadata_context(&chand->security_connector->base,
chand->auth_context, calld);
grpc_error *cancel_error = set_cancel_func(elem, cancel_get_request_metadata);
if (cancel_error != GRPC_ERROR_NONE) {
grpc_transport_stream_op_batch_finish_with_failure(exec_ctx, batch,
cancel_error);
return;
}
GPR_ASSERT(calld->pollent != NULL);
GRPC_CLOSURE_INIT(&calld->closure, on_credentials_metadata, batch,
grpc_schedule_on_exec_ctx);
grpc_error *error = GRPC_ERROR_NONE;
if (grpc_call_credentials_get_request_metadata(
exec_ctx, calld->creds, calld->pollent, calld->auth_md_context,
&calld->md_array, &calld->closure, &error)) {
// Synchronous return; invoke on_credentials_metadata() directly.
on_credentials_metadata(exec_ctx, batch, error);
GRPC_ERROR_UNREF(error);
}
}
static VALUE grpc_rb_call_credentials_compose(int argc, VALUE *argv,
VALUE self) {
grpc_call_credentials *creds;
grpc_call_credentials *other;
if (argc == 0) {
return self;
}
creds = grpc_rb_get_wrapped_call_credentials(self);
for (int i = 0; i < argc; i++) {
other = grpc_rb_get_wrapped_call_credentials(argv[i]);
creds = grpc_composite_call_credentials_create(creds, other, NULL);
}
return grpc_rb_wrap_call_credentials(creds);
}
static VALUE grpc_rb_call_credentials_compose(int argc, VALUE *argv,
VALUE self) {
grpc_call_credentials *creds;
grpc_call_credentials *other;
VALUE mark;
if (argc == 0) {
return self;
}
mark = rb_ary_new();
creds = grpc_rb_get_wrapped_call_credentials(self);
for (int i = 0; i < argc; i++) {
rb_ary_push(mark, argv[i]);
other = grpc_rb_get_wrapped_call_credentials(argv[i]);
creds = grpc_composite_call_credentials_create(creds, other, NULL);
}
return grpc_rb_wrap_call_credentials(creds, mark);
}
static void send_security_metadata(grpc_exec_ctx *exec_ctx,
grpc_call_element *elem,
grpc_transport_stream_op *op) {
call_data *calld = elem->call_data;
channel_data *chand = elem->channel_data;
grpc_client_security_context *ctx =
(grpc_client_security_context *)op->context[GRPC_CONTEXT_SECURITY].value;
grpc_call_credentials *channel_call_creds =
chand->security_connector->request_metadata_creds;
int call_creds_has_md = (ctx != NULL) && (ctx->creds != NULL);
if (channel_call_creds == NULL && !call_creds_has_md) {
/* Skip sending metadata altogether. */
grpc_call_next_op(exec_ctx, elem, op);
return;
}
if (channel_call_creds != NULL && call_creds_has_md) {
calld->creds = grpc_composite_call_credentials_create(channel_call_creds,
ctx->creds, NULL);
if (calld->creds == NULL) {
grpc_transport_stream_op_finish_with_failure(
exec_ctx, op,
grpc_error_set_int(
GRPC_ERROR_CREATE(
"Incompatible credentials set on channel and call."),
GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAUTHENTICATED));
return;
}
} else {
calld->creds = grpc_call_credentials_ref(
call_creds_has_md ? ctx->creds : channel_call_creds);
}
build_auth_metadata_context(&chand->security_connector->base,
chand->auth_context, calld);
calld->op = *op; /* Copy op (originates from the caller's stack). */
GPR_ASSERT(calld->pollent != NULL);
grpc_call_credentials_get_request_metadata(
exec_ctx, calld->creds, calld->pollent, calld->auth_md_context,
on_credentials_metadata, elem);
}
CallCredentials *pygrpc_CallCredentials_composite(
PyTypeObject *type, PyObject *args, PyObject *kwargs) {
CallCredentials *self;
CallCredentials *creds1;
CallCredentials *creds2;
static char *keywords[] = {"creds1", "creds2", NULL};
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O!O!:composite", keywords,
&pygrpc_CallCredentials_type, &creds1,
&pygrpc_CallCredentials_type, &creds2)) {
return NULL;
}
self = (CallCredentials *)type->tp_alloc(type, 0);
self->c_creds =
grpc_composite_call_credentials_create(
creds1->c_creds, creds2->c_creds, NULL);
if (!self->c_creds) {
Py_DECREF(self);
PyErr_SetString(PyExc_RuntimeError, "couldn't create composite credentials");
return NULL;
}
return self;
}
GPR_EXPORT grpc_call_credentials *GPR_CALLTYPE grpcsharp_composite_call_credentials_create(
grpc_call_credentials *creds1,
grpc_call_credentials *creds2) {
return grpc_composite_call_credentials_create(creds1, creds2, NULL);
}