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/*
*
* Copyright 2015, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#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" \
"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 95
#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 16K */ \
"\x00\x00\x06\x04\x00\x00\x00\x00\x00\x00\x06\x00\x00\x40\x00" /* headers: \
generated \
from \
simple_request.headers \
in this \
directory \
*/ \
"\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 == strcmp(call_details.host, "localhost"));
GPR_ASSERT(0 == strcmp(call_details.method, "/foo/bar"));
grpc_metadata_array_destroy(&request_metadata_recv);
grpc_call_details_destroy(&call_details);
grpc_call_destroy(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 == strcmp(call_details.host, "localhost"));
GPR_ASSERT(0 == strcmp(call_details.method, "/foo/bar"));
const size_t metadata_value_size = 16 * 1024;
grpc_metadata meta;
meta.key = "key";
meta.value = gpr_malloc(metadata_value_size + 1);
memset((char *)meta.value, 'a', metadata_value_size);
((char *)meta.value)[metadata_value_size] = 0;
meta.value_length = metadata_value_size;
grpc_op 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 = NULL;
error = grpc_call_start_batch(s, &op, 1, tag(102), NULL);
GPR_ASSERT(GRPC_CALL_OK == error);
cq_expect_completion(cqv, tag(102), 0); // Operation fails.
cq_verify(cqv);
gpr_free((char *)meta.value);
grpc_metadata_array_destroy(&request_metadata_recv);
grpc_call_details_destroy(&call_details);
grpc_call_destroy(s);
cq_verifier_destroy(cqv);
}
static void client_validator(gpr_slice_buffer *incoming) {
// Get last frame from incoming slice buffer.
gpr_slice_buffer last_frame_buffer;
gpr_slice_buffer_init(&last_frame_buffer);
gpr_slice_buffer_trim_end(incoming, 13, &last_frame_buffer);
GPR_ASSERT(last_frame_buffer.count == 1);
gpr_slice last_frame = last_frame_buffer.slices[0];
// Construct expected frame.
gpr_slice expected = gpr_slice_malloc(13);
uint8_t *p = GPR_SLICE_START_PTR(expected);
// Length.
*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++ = 11;
// Compare actual and expected.
GPR_ASSERT(gpr_slice_cmp(last_frame, expected) == 0);
gpr_slice_buffer_destroy(&last_frame_buffer);
}
int main(int argc, char **argv) {
grpc_test_init(argc, argv);
// Test sending more metadata than the server will accept.
gpr_strvec headers;
gpr_strvec_init(&headers);
for (int 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;
}
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