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/*
*
* Copyright 2015 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "test/core/bad_client/bad_client.h"
#include <stdio.h>
#include <grpc/support/alloc.h>
#include <grpc/support/string_util.h>
#include <grpc/support/sync.h>
#include <grpc/support/thd.h>
#include "src/core/ext/filters/http/server/http_server_filter.h"
#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
#include "src/core/lib/channel/channel_stack.h"
#include "src/core/lib/iomgr/endpoint_pair.h"
#include "src/core/lib/slice/slice_internal.h"
#include "src/core/lib/support/murmur_hash.h"
#include "src/core/lib/support/string.h"
#include "src/core/lib/surface/completion_queue.h"
#include "src/core/lib/surface/server.h"
typedef struct {
grpc_server* server;
grpc_completion_queue* cq;
grpc_bad_client_server_side_validator validator;
void* registered_method;
gpr_event done_thd;
gpr_event done_write;
} thd_args;
static void thd_func(void* arg) {
thd_args* a = (thd_args*)arg;
a->validator(a->server, a->cq, a->registered_method);
gpr_event_set(&a->done_thd, (void*)1);
}
static void done_write(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {
thd_args* a = (thd_args*)arg;
gpr_event_set(&a->done_write, (void*)1);
}
static void server_setup_transport(void* ts, grpc_transport* transport) {
thd_args* a = (thd_args*)ts;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_server_setup_transport(&exec_ctx, a->server, transport, NULL,
grpc_server_get_channel_args(a->server));
grpc_exec_ctx_finish(&exec_ctx);
}
static void read_done(grpc_exec_ctx* exec_ctx, void* arg, grpc_error* error) {
gpr_event* read_done = (gpr_event*)arg;
gpr_event_set(read_done, (void*)1);
}
void grpc_run_bad_client_test(
grpc_bad_client_server_side_validator server_validator,
grpc_bad_client_client_stream_validator client_validator,
const char* client_payload, size_t client_payload_length, uint32_t flags) {
grpc_endpoint_pair sfd;
thd_args a;
gpr_thd_id id;
char* hex;
grpc_transport* transport;
grpc_slice slice =
grpc_slice_from_copied_buffer(client_payload, client_payload_length);
grpc_slice_buffer outgoing;
grpc_closure done_write_closure;
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_completion_queue* shutdown_cq;
if (client_payload_length < 4 * 1024) {
hex = gpr_dump(client_payload, client_payload_length,
GPR_DUMP_HEX | GPR_DUMP_ASCII);
/* Add a debug log */
gpr_log(GPR_INFO, "TEST: %s", hex);
gpr_free(hex);
} else {
gpr_log(GPR_INFO, "TEST: (%" PRIdPTR " byte long string)",
client_payload_length);
}
/* Init grpc */
grpc_init();
/* Create endpoints */
sfd = grpc_iomgr_create_endpoint_pair("fixture", NULL);
/* Create server, completion events */
a.server = grpc_server_create(NULL, NULL);
a.cq = grpc_completion_queue_create_for_next(NULL);
gpr_event_init(&a.done_thd);
gpr_event_init(&a.done_write);
a.validator = server_validator;
grpc_server_register_completion_queue(a.server, a.cq, NULL);
a.registered_method =
grpc_server_register_method(a.server, GRPC_BAD_CLIENT_REGISTERED_METHOD,
GRPC_BAD_CLIENT_REGISTERED_HOST,
GRPC_SRM_PAYLOAD_READ_INITIAL_BYTE_BUFFER, 0);
grpc_server_start(a.server);
transport = grpc_create_chttp2_transport(&exec_ctx, NULL, sfd.server, 0);
server_setup_transport(&a, transport);
grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL);
grpc_exec_ctx_finish(&exec_ctx);
/* Bind everything into the same pollset */
grpc_endpoint_add_to_pollset(&exec_ctx, sfd.client, grpc_cq_pollset(a.cq));
grpc_endpoint_add_to_pollset(&exec_ctx, sfd.server, grpc_cq_pollset(a.cq));
/* Check a ground truth */
GPR_ASSERT(grpc_server_has_open_connections(a.server));
/* Start validator */
gpr_thd_new(&id, thd_func, &a, NULL);
grpc_slice_buffer_init(&outgoing);
grpc_slice_buffer_add(&outgoing, slice);
GRPC_CLOSURE_INIT(&done_write_closure, done_write, &a,
grpc_schedule_on_exec_ctx);
/* Write data */
grpc_endpoint_write(&exec_ctx, sfd.client, &outgoing, &done_write_closure);
grpc_exec_ctx_finish(&exec_ctx);
/* Await completion, unless the request is large and write may not finish
* before the peer shuts down. */
if (!(flags & GRPC_BAD_CLIENT_LARGE_REQUEST)) {
GPR_ASSERT(
gpr_event_wait(&a.done_write, grpc_timeout_seconds_to_deadline(5)));
}
if (flags & GRPC_BAD_CLIENT_DISCONNECT) {
grpc_endpoint_shutdown(
&exec_ctx, sfd.client,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Forced Disconnect"));
grpc_endpoint_destroy(&exec_ctx, sfd.client);
grpc_exec_ctx_finish(&exec_ctx);
sfd.client = NULL;
}
GPR_ASSERT(gpr_event_wait(&a.done_thd, grpc_timeout_seconds_to_deadline(5)));
if (sfd.client != NULL) {
// Validate client stream, if requested.
if (client_validator != NULL) {
gpr_timespec deadline = grpc_timeout_seconds_to_deadline(5);
grpc_slice_buffer incoming;
grpc_slice_buffer_init(&incoming);
// We may need to do multiple reads to read the complete server response.
while (true) {
gpr_event read_done_event;
gpr_event_init(&read_done_event);
grpc_closure read_done_closure;
GRPC_CLOSURE_INIT(&read_done_closure, read_done, &read_done_event,
grpc_schedule_on_exec_ctx);
grpc_endpoint_read(&exec_ctx, sfd.client, &incoming,
&read_done_closure);
grpc_exec_ctx_finish(&exec_ctx);
do {
GPR_ASSERT(gpr_time_cmp(deadline, gpr_now(deadline.clock_type)) > 0);
GPR_ASSERT(grpc_completion_queue_next(
a.cq, grpc_timeout_milliseconds_to_deadline(100), NULL)
.type == GRPC_QUEUE_TIMEOUT);
} while (!gpr_event_get(&read_done_event));
if (client_validator(&incoming)) break;
gpr_log(GPR_INFO,
"client validator failed; trying additional read "
"in case we didn't get all the data");
}
grpc_slice_buffer_destroy_internal(&exec_ctx, &incoming);
}
// Shutdown.
grpc_endpoint_shutdown(
&exec_ctx, sfd.client,
GRPC_ERROR_CREATE_FROM_STATIC_STRING("Test Shutdown"));
grpc_endpoint_destroy(&exec_ctx, sfd.client);
grpc_exec_ctx_finish(&exec_ctx);
}
GPR_ASSERT(
gpr_event_wait(&a.done_write, grpc_timeout_seconds_to_deadline(1)));
shutdown_cq = grpc_completion_queue_create_for_pluck(NULL);
grpc_server_shutdown_and_notify(a.server, shutdown_cq, NULL);
GPR_ASSERT(grpc_completion_queue_pluck(
shutdown_cq, NULL, grpc_timeout_seconds_to_deadline(1), NULL)
.type == GRPC_OP_COMPLETE);
grpc_completion_queue_destroy(shutdown_cq);
grpc_server_destroy(a.server);
grpc_completion_queue_destroy(a.cq);
grpc_slice_buffer_destroy_internal(&exec_ctx, &outgoing);
grpc_exec_ctx_finish(&exec_ctx);
grpc_shutdown();
}
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