| /* |
| * |
| * 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 <string.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/string_util.h> |
| #include "src/core/lib/support/string.h" |
| #include "src/core/lib/surface/server.h" |
| #include "test/core/end2end/cq_verifier.h" |
| |
| // The large-metadata headers that we're adding for this test are not |
| // actually appended to this in a single string, since the string would |
| // be longer than the C99 string literal limit. Instead, we dynamically |
| // construct it by adding the large headers one at a time. |
| |
| #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR \ |
| "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* settings frame */ \ |
| "\x00\x00\x00\x04\x00\x00\x00\x00\x00" /* headers: generated from \ |
| large_metadata.headers in this \ |
| directory */ \ |
| "\x00\x00\x00\x04\x01\x00\x00\x00\x00" \ |
| "\x00" \ |
| "5{\x01\x05\x00\x00\x00\x01" \ |
| "\x10\x05:path\x08/foo/bar" \ |
| "\x10\x07:scheme\x04http" \ |
| "\x10\x07:method\x04POST" \ |
| "\x10\x0a:authority\x09localhost" \ |
| "\x10\x0c" \ |
| "content-type\x10" \ |
| "application/grpc" \ |
| "\x10\x14grpc-accept-encoding\x15identity,deflate,gzip" \ |
| "\x10\x02te\x08trailers" \ |
| "\x10\x0auser-agent\"bad-client grpc-c/0.12.0.0 (linux)" |
| |
| // Each large-metadata header is constructed from these start and end |
| // strings, with a two-digit number in between. |
| #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_START_STR "\x10\x0duser-header" |
| #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_END_STR \ |
| "~aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" \ |
| "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" |
| |
| // The size of each large-metadata header string. |
| #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_SIZE \ |
| ((sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_START_STR) - 1) + 2 + \ |
| (sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_END_STR) - 1)) |
| |
| // The number of headers we're adding and the total size of the client |
| // payload. |
| #define NUM_HEADERS 46 |
| #define PFX_TOO_MUCH_METADATA_FROM_CLIENT_PAYLOAD_SIZE \ |
| ((sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR) - 1) + \ |
| (NUM_HEADERS * PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_SIZE) + 1) |
| |
| #define PFX_TOO_MUCH_METADATA_FROM_SERVER_STR \ |
| "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" /* settings frame: sets \ |
| MAX_HEADER_LIST_SIZE to 8K */ \ |
| "\x00\x00\x06\x04\x00\x00\x00\x00\x00\x00\x06\x00\x00\x20\x00" /* headers: \ |
| generated \ |
| from \ |
| simple_request.headers \ |
| in this \ |
| directory \ |
| */ \ |
| "\x00\x00\x00\x04\x01\x00\x00\x00\x00" \ |
| "\x00\x00\xc9\x01\x04\x00\x00\x00\x01" \ |
| "\x10\x05:path\x08/foo/bar" \ |
| "\x10\x07:scheme\x04http" \ |
| "\x10\x07:method\x04POST" \ |
| "\x10\x0a:authority\x09localhost" \ |
| "\x10\x0c" \ |
| "content-type\x10" \ |
| "application/grpc" \ |
| "\x10\x14grpc-accept-encoding\x15" \ |
| "deflate,identity,gzip" \ |
| "\x10\x02te\x08trailers" \ |
| "\x10\x0auser-agent\"bad-client grpc-c/0.12.0.0 (linux)" |
| |
| static void* tag(intptr_t t) { return (void*)t; } |
| |
| static void server_verifier(grpc_server* server, grpc_completion_queue* cq, |
| void* registered_method) { |
| grpc_call_error error; |
| grpc_call* s; |
| grpc_call_details call_details; |
| cq_verifier* cqv = cq_verifier_create(cq); |
| grpc_metadata_array request_metadata_recv; |
| |
| grpc_call_details_init(&call_details); |
| grpc_metadata_array_init(&request_metadata_recv); |
| |
| error = grpc_server_request_call(server, &s, &call_details, |
| &request_metadata_recv, cq, cq, tag(101)); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| CQ_EXPECT_COMPLETION(cqv, tag(101), 1); |
| cq_verify(cqv); |
| |
| GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.host, "localhost")); |
| GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo/bar")); |
| |
| grpc_metadata_array_destroy(&request_metadata_recv); |
| grpc_call_details_destroy(&call_details); |
| grpc_call_unref(s); |
| cq_verifier_destroy(cqv); |
| } |
| |
| static void server_verifier_sends_too_much_metadata(grpc_server* server, |
| grpc_completion_queue* cq, |
| void* registered_method) { |
| grpc_call_error error; |
| grpc_call* s; |
| grpc_call_details call_details; |
| cq_verifier* cqv = cq_verifier_create(cq); |
| grpc_metadata_array request_metadata_recv; |
| |
| grpc_call_details_init(&call_details); |
| grpc_metadata_array_init(&request_metadata_recv); |
| |
| error = grpc_server_request_call(server, &s, &call_details, |
| &request_metadata_recv, cq, cq, tag(101)); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| CQ_EXPECT_COMPLETION(cqv, tag(101), 1); |
| cq_verify(cqv); |
| |
| GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.host, "localhost")); |
| GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo/bar")); |
| |
| const size_t metadata_value_size = 8 * 1024; |
| grpc_metadata meta; |
| meta.key = grpc_slice_from_static_string("key"); |
| meta.value = grpc_slice_malloc(metadata_value_size); |
| memset(GRPC_SLICE_START_PTR(meta.value), 'a', metadata_value_size); |
| |
| grpc_op op; |
| memset(&op, 0, sizeof(op)); |
| op.op = GRPC_OP_SEND_INITIAL_METADATA; |
| op.data.send_initial_metadata.count = 1; |
| op.data.send_initial_metadata.metadata = &meta; |
| op.flags = 0; |
| op.reserved = nullptr; |
| error = grpc_call_start_batch(s, &op, 1, tag(102), nullptr); |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| CQ_EXPECT_COMPLETION(cqv, tag(102), 0); // Operation fails. |
| cq_verify(cqv); |
| |
| grpc_slice_unref(meta.value); |
| grpc_metadata_array_destroy(&request_metadata_recv); |
| grpc_call_details_destroy(&call_details); |
| grpc_call_unref(s); |
| cq_verifier_destroy(cqv); |
| } |
| |
| static bool client_validator(grpc_slice_buffer* incoming) { |
| for (size_t i = 0; i < incoming->count; ++i) { |
| const char* s = (const char*)GRPC_SLICE_START_PTR(incoming->slices[i]); |
| char* hex = gpr_dump(s, GRPC_SLICE_LENGTH(incoming->slices[i]), |
| GPR_DUMP_HEX | GPR_DUMP_ASCII); |
| gpr_log(GPR_INFO, "RESPONSE SLICE %" PRIdPTR ": %s", i, hex); |
| gpr_free(hex); |
| } |
| |
| // Get last frame from incoming slice buffer. |
| grpc_slice_buffer last_frame_buffer; |
| grpc_slice_buffer_init(&last_frame_buffer); |
| grpc_slice_buffer_trim_end(incoming, 13, &last_frame_buffer); |
| GPR_ASSERT(last_frame_buffer.count == 1); |
| grpc_slice last_frame = last_frame_buffer.slices[0]; |
| |
| const uint8_t* p = GRPC_SLICE_START_PTR(last_frame); |
| bool success = |
| // Length == 4 |
| *p++ != 0 || *p++ != 0 || *p++ != 4 || |
| // Frame type (RST_STREAM) |
| *p++ != 3 || |
| // Flags |
| *p++ != 0 || |
| // Stream ID. |
| *p++ != 0 || *p++ != 0 || *p++ != 0 || *p++ != 1 || |
| // Payload (error code) |
| *p++ == 0 || *p++ == 0 || *p++ == 0 || *p == 0 || *p == 11; |
| |
| if (!success) { |
| gpr_log(GPR_INFO, "client expected RST_STREAM frame, not found"); |
| } |
| |
| grpc_slice_buffer_destroy(&last_frame_buffer); |
| return success; |
| } |
| |
| int main(int argc, char** argv) { |
| int i; |
| |
| grpc_test_init(argc, argv); |
| |
| // Test sending more metadata than the server will accept. |
| gpr_strvec headers; |
| gpr_strvec_init(&headers); |
| for (i = 0; i < NUM_HEADERS; ++i) { |
| char* str; |
| gpr_asprintf(&str, "%s%02d%s", |
| PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_START_STR, i, |
| PFX_TOO_MUCH_METADATA_FROM_CLIENT_HEADER_END_STR); |
| gpr_strvec_add(&headers, str); |
| } |
| size_t headers_len; |
| const char* client_headers = gpr_strvec_flatten(&headers, &headers_len); |
| gpr_strvec_destroy(&headers); |
| char client_payload[PFX_TOO_MUCH_METADATA_FROM_CLIENT_PAYLOAD_SIZE] = |
| PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR; |
| memcpy( |
| client_payload + sizeof(PFX_TOO_MUCH_METADATA_FROM_CLIENT_PREFIX_STR) - 1, |
| client_headers, headers_len); |
| GRPC_RUN_BAD_CLIENT_TEST(server_verifier, client_validator, client_payload, |
| 0); |
| gpr_free((void*)client_headers); |
| |
| // Test sending more metadata than the client will accept. |
| GRPC_RUN_BAD_CLIENT_TEST(server_verifier_sends_too_much_metadata, |
| client_validator, |
| PFX_TOO_MUCH_METADATA_FROM_SERVER_STR, 0); |
| |
| return 0; |
| } |