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1 /*
2  *
3  * Copyright 2015 gRPC authors.
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  *
17  */
18 
19 #include "test/core/end2end/end2end_tests.h"
20 
21 #include <stdio.h>
22 #include <string.h>
23 
24 #include <grpc/byte_buffer.h>
25 #include <grpc/grpc.h>
26 #include <grpc/support/alloc.h>
27 #include <grpc/support/log.h>
28 #include <grpc/support/time.h>
29 
30 #include "src/core/lib/channel/channel_args.h"
31 #include "src/core/lib/gpr/string.h"
32 #include "test/core/end2end/cq_verifier.h"
33 
tag(intptr_t t)34 static void* tag(intptr_t t) { return (void*)t; }
35 
begin_test(grpc_end2end_test_config config,const char * test_name,grpc_channel_args * client_args,grpc_channel_args * server_args)36 static grpc_end2end_test_fixture begin_test(grpc_end2end_test_config config,
37                                             const char* test_name,
38                                             grpc_channel_args* client_args,
39                                             grpc_channel_args* server_args) {
40   grpc_end2end_test_fixture f;
41   gpr_log(GPR_INFO, "Running test: %s/%s", test_name, config.name);
42   f = config.create_fixture(client_args, server_args);
43   grpc_arg fake_security_name_override = {
44       GRPC_ARG_STRING,
45       const_cast<char*>(GRPC_SSL_TARGET_NAME_OVERRIDE_ARG),
46       {const_cast<char*>("foo.test.google.fr:1234")}};
47   grpc_channel_args* new_client_args = grpc_channel_args_copy_and_add(
48       client_args, &fake_security_name_override, 1);
49   config.init_client(&f, new_client_args);
50   grpc_channel_args_destroy(new_client_args);
51   config.init_server(&f, server_args);
52   return f;
53 }
54 
n_seconds_from_now(int n)55 static gpr_timespec n_seconds_from_now(int n) {
56   return grpc_timeout_seconds_to_deadline(n);
57 }
58 
five_seconds_from_now(void)59 static gpr_timespec five_seconds_from_now(void) {
60   return n_seconds_from_now(5);
61 }
62 
drain_cq(grpc_completion_queue * cq)63 static void drain_cq(grpc_completion_queue* cq) {
64   grpc_event ev;
65   do {
66     ev = grpc_completion_queue_next(cq, five_seconds_from_now(), nullptr);
67   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
68 }
69 
shutdown_server(grpc_end2end_test_fixture * f)70 static void shutdown_server(grpc_end2end_test_fixture* f) {
71   if (!f->server) return;
72   grpc_server_shutdown_and_notify(f->server, f->shutdown_cq, tag(1000));
73   GPR_ASSERT(grpc_completion_queue_pluck(f->shutdown_cq, tag(1000),
74                                          grpc_timeout_seconds_to_deadline(5),
75                                          nullptr)
76                  .type == GRPC_OP_COMPLETE);
77   grpc_server_destroy(f->server);
78   f->server = nullptr;
79 }
80 
shutdown_client(grpc_end2end_test_fixture * f)81 static void shutdown_client(grpc_end2end_test_fixture* f) {
82   if (!f->client) return;
83   grpc_channel_destroy(f->client);
84   f->client = nullptr;
85 }
86 
end_test(grpc_end2end_test_fixture * f)87 static void end_test(grpc_end2end_test_fixture* f) {
88   shutdown_server(f);
89   shutdown_client(f);
90 
91   grpc_completion_queue_shutdown(f->cq);
92   drain_cq(f->cq);
93   grpc_completion_queue_destroy(f->cq);
94   grpc_completion_queue_destroy(f->shutdown_cq);
95 }
96 
test_invoke_simple_request(grpc_end2end_test_config config)97 static void test_invoke_simple_request(grpc_end2end_test_config config) {
98   grpc_end2end_test_fixture f =
99       begin_test(config, "test_invoke_simple_request", nullptr, nullptr);
100   grpc_call* c;
101   grpc_call* s;
102   cq_verifier* cqv = cq_verifier_create(f.cq);
103   grpc_op ops[6];
104   grpc_op* op;
105   grpc_metadata_array initial_metadata_recv;
106   grpc_metadata_array trailing_metadata_recv;
107   grpc_metadata_array request_metadata_recv;
108   grpc_call_details call_details;
109   grpc_status_code status;
110   grpc_call_error error;
111   grpc_slice details;
112   int was_cancelled = 2;
113   char* peer;
114 
115   gpr_timespec deadline = five_seconds_from_now();
116   c = grpc_channel_create_call(
117       f.client, nullptr, GRPC_PROPAGATE_DEFAULTS, f.cq,
118       grpc_slice_from_static_string("/foo"),
119       get_host_override_slice("foo.test.google.fr:1234", config), deadline,
120       nullptr);
121   GPR_ASSERT(c);
122 
123   peer = grpc_call_get_peer(c);
124   GPR_ASSERT(peer != nullptr);
125   gpr_log(GPR_DEBUG, "client_peer_before_call=%s", peer);
126   gpr_free(peer);
127 
128   grpc_metadata_array_init(&initial_metadata_recv);
129   grpc_metadata_array_init(&trailing_metadata_recv);
130   grpc_metadata_array_init(&request_metadata_recv);
131   grpc_call_details_init(&call_details);
132 
133   memset(ops, 0, sizeof(ops));
134   op = ops;
135   op->op = GRPC_OP_SEND_INITIAL_METADATA;
136   op->data.send_initial_metadata.count = 0;
137   op->flags = 0;
138   op->reserved = nullptr;
139   op++;
140   op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
141   op->flags = 0;
142   op->reserved = nullptr;
143   op++;
144   op->op = GRPC_OP_RECV_INITIAL_METADATA;
145   op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
146   op->flags = 0;
147   op->reserved = nullptr;
148   op++;
149   op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
150   op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
151   op->data.recv_status_on_client.status = &status;
152   op->data.recv_status_on_client.status_details = &details;
153   op->flags = 0;
154   op->reserved = nullptr;
155   op++;
156   error = grpc_call_start_batch(c, ops, static_cast<size_t>(op - ops), tag(1),
157                                 nullptr);
158   GPR_ASSERT(error == GRPC_CALL_OK);
159 
160   error =
161       grpc_server_request_call(f.server, &s, &call_details,
162                                &request_metadata_recv, f.cq, f.cq, tag(101));
163   GPR_ASSERT(error == GRPC_CALL_OK);
164   CQ_EXPECT_COMPLETION(cqv, tag(101), 1);
165   cq_verify(cqv);
166 
167   peer = grpc_call_get_peer(s);
168   GPR_ASSERT(peer != nullptr);
169   gpr_log(GPR_DEBUG, "server_peer=%s", peer);
170   gpr_free(peer);
171   peer = grpc_call_get_peer(c);
172   GPR_ASSERT(peer != nullptr);
173   gpr_log(GPR_DEBUG, "client_peer=%s", peer);
174   gpr_free(peer);
175 
176   memset(ops, 0, sizeof(ops));
177   op = ops;
178   op->op = GRPC_OP_SEND_INITIAL_METADATA;
179   op->data.send_initial_metadata.count = 0;
180   op->flags = 0;
181   op->reserved = nullptr;
182   op++;
183   op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
184   op->data.send_status_from_server.trailing_metadata_count = 0;
185   op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED;
186   grpc_slice status_details = grpc_slice_from_static_string("xyz");
187   op->data.send_status_from_server.status_details = &status_details;
188   op->flags = 0;
189   op->reserved = nullptr;
190   op++;
191   op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
192   op->data.recv_close_on_server.cancelled = &was_cancelled;
193   op->flags = 0;
194   op->reserved = nullptr;
195   op++;
196   error = grpc_call_start_batch(s, ops, static_cast<size_t>(op - ops), tag(102),
197                                 nullptr);
198   GPR_ASSERT(error == GRPC_CALL_OK);
199 
200   CQ_EXPECT_COMPLETION(cqv, tag(102), 1);
201   CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
202   cq_verify(cqv);
203 
204   GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED);
205   GPR_ASSERT(0 == grpc_slice_str_cmp(details, "xyz"));
206   GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
207   validate_host_override_string("foo.test.google.fr:1234", call_details.host,
208                                 config);
209   GPR_ASSERT(was_cancelled == 1);
210 
211   grpc_slice_unref(details);
212   grpc_metadata_array_destroy(&initial_metadata_recv);
213   grpc_metadata_array_destroy(&trailing_metadata_recv);
214   grpc_metadata_array_destroy(&request_metadata_recv);
215   grpc_call_details_destroy(&call_details);
216 
217   grpc_call_unref(c);
218   grpc_call_unref(s);
219 
220   cq_verifier_destroy(cqv);
221 
222   end_test(&f);
223   config.tear_down_data(&f);
224 }
225 
call_host_override(grpc_end2end_test_config config)226 void call_host_override(grpc_end2end_test_config config) {
227   test_invoke_simple_request(config);
228 }
229 
call_host_override_pre_init(void)230 void call_host_override_pre_init(void) {}
231