test/core/bad_client/tests/large_metadata.cc - third_party/grpc - Git at Google

 /*
  *
  * 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/gpr/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;
 }
	/*
	*
	* 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/gpr/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;
	}