| /* |
| * |
| * 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 "src/core/ext/transport/chttp2/transport/hpack_encoder.h" |
| |
| #include <stdio.h> |
| #include <string.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/log.h> |
| #include <grpc/support/string_util.h> |
| |
| #include "src/core/ext/transport/chttp2/transport/hpack_parser.h" |
| #include "src/core/lib/slice/slice_internal.h" |
| #include "src/core/lib/slice/slice_string_helpers.h" |
| #include "src/core/lib/support/string.h" |
| #include "src/core/lib/transport/metadata.h" |
| #include "test/core/util/parse_hexstring.h" |
| #include "test/core/util/slice_splitter.h" |
| #include "test/core/util/test_config.h" |
| |
| #define TEST(x) run_test(x, #x) |
| |
| grpc_chttp2_hpack_compressor g_compressor; |
| int g_failure = 0; |
| |
| void **to_delete = NULL; |
| size_t num_to_delete = 0; |
| size_t cap_to_delete = 0; |
| |
| /* verify that the output generated by encoding the stream matches the |
| hexstring passed in */ |
| static void verify(grpc_exec_ctx *exec_ctx, size_t window_available, int eof, |
| size_t expect_window_used, const char *expected, |
| size_t nheaders, ...) { |
| grpc_slice_buffer output; |
| grpc_slice merged; |
| grpc_slice expect = parse_hexstring(expected); |
| size_t i; |
| va_list l; |
| grpc_linked_mdelem *e = gpr_malloc(sizeof(*e) * nheaders); |
| grpc_metadata_batch b; |
| |
| grpc_metadata_batch_init(&b); |
| |
| va_start(l, nheaders); |
| for (i = 0; i < nheaders; i++) { |
| char *key = va_arg(l, char *); |
| char *value = va_arg(l, char *); |
| if (i) { |
| e[i - 1].next = &e[i]; |
| e[i].prev = &e[i - 1]; |
| } |
| e[i].md = grpc_mdelem_from_strings(exec_ctx, key, value); |
| } |
| e[0].prev = NULL; |
| e[nheaders - 1].next = NULL; |
| va_end(l); |
| |
| b.list.head = &e[0]; |
| b.list.tail = &e[nheaders - 1]; |
| |
| if (cap_to_delete == num_to_delete) { |
| cap_to_delete = GPR_MAX(2 * cap_to_delete, 1000); |
| to_delete = gpr_realloc(to_delete, sizeof(*to_delete) * cap_to_delete); |
| } |
| to_delete[num_to_delete++] = e; |
| |
| grpc_slice_buffer_init(&output); |
| |
| grpc_transport_one_way_stats stats; |
| memset(&stats, 0, sizeof(stats)); |
| grpc_chttp2_encode_header(exec_ctx, &g_compressor, 0xdeadbeef, &b, eof, 16384, |
| &stats, &output); |
| merged = grpc_slice_merge(output.slices, output.count); |
| grpc_slice_buffer_destroy_internal(exec_ctx, &output); |
| grpc_metadata_batch_destroy(exec_ctx, &b); |
| |
| if (0 != grpc_slice_cmp(merged, expect)) { |
| char *expect_str = grpc_dump_slice(expect, GPR_DUMP_HEX | GPR_DUMP_ASCII); |
| char *got_str = grpc_dump_slice(merged, GPR_DUMP_HEX | GPR_DUMP_ASCII); |
| gpr_log(GPR_ERROR, "mismatched output for %s", expected); |
| gpr_log(GPR_ERROR, "EXPECT: %s", expect_str); |
| gpr_log(GPR_ERROR, "GOT: %s", got_str); |
| gpr_free(expect_str); |
| gpr_free(got_str); |
| g_failure = 1; |
| } |
| |
| grpc_slice_unref_internal(exec_ctx, merged); |
| grpc_slice_unref_internal(exec_ctx, expect); |
| } |
| |
| static void test_basic_headers(grpc_exec_ctx *exec_ctx) { |
| int i; |
| |
| verify(exec_ctx, 0, 0, 0, "000005 0104 deadbeef 40 0161 0161", 1, "a", "a"); |
| verify(exec_ctx, 0, 0, 0, "000001 0104 deadbeef be", 1, "a", "a"); |
| verify(exec_ctx, 0, 0, 0, "000001 0104 deadbeef be", 1, "a", "a"); |
| verify(exec_ctx, 0, 0, 0, "000006 0104 deadbeef be 40 0162 0163", 2, "a", "a", |
| "b", "c"); |
| verify(exec_ctx, 0, 0, 0, "000002 0104 deadbeef bf be", 2, "a", "a", "b", |
| "c"); |
| verify(exec_ctx, 0, 0, 0, "000004 0104 deadbeef 7f 00 0164", 1, "a", "d"); |
| |
| /* flush out what's there to make a few values look very popular */ |
| for (i = 0; i < 350; i++) { |
| verify(exec_ctx, 0, 0, 0, "000003 0104 deadbeef c0 bf be", 3, "a", "a", "b", |
| "c", "a", "d"); |
| } |
| |
| verify(exec_ctx, 0, 0, 0, "000006 0104 deadbeef c0 00 016b 0176", 2, "a", "a", |
| "k", "v"); |
| /* this could be 000004 0104 deadbeef 0f 30 0176 also */ |
| verify(exec_ctx, 0, 0, 0, "000004 0104 deadbeef 0f 2f 0176", 1, "a", "v"); |
| } |
| |
| static void encode_int_to_str(int i, char *p) { |
| p[0] = (char)('a' + i % 26); |
| i /= 26; |
| GPR_ASSERT(i < 26); |
| p[1] = (char)('a' + i); |
| p[2] = 0; |
| } |
| |
| static void test_decode_table_overflow(grpc_exec_ctx *exec_ctx) { |
| int i; |
| char key[3], value[3]; |
| char *expect; |
| |
| for (i = 0; i < 114; i++) { |
| encode_int_to_str(i, key); |
| encode_int_to_str(i + 1, value); |
| |
| if (i + 61 >= 127) { |
| gpr_asprintf(&expect, |
| "000009 0104 deadbeef ff%02x 40 02%02x%02x 02%02x%02x", |
| i + 61 - 127, key[0], key[1], value[0], value[1]); |
| } else if (i > 0) { |
| gpr_asprintf(&expect, |
| "000008 0104 deadbeef %02x 40 02%02x%02x 02%02x%02x", |
| 0x80 + 61 + i, key[0], key[1], value[0], value[1]); |
| } else { |
| gpr_asprintf(&expect, "000007 0104 deadbeef 40 02%02x%02x 02%02x%02x", |
| key[0], key[1], value[0], value[1]); |
| } |
| |
| if (i > 0) { |
| verify(exec_ctx, 0, 0, 0, expect, 2, "aa", "ba", key, value); |
| } else { |
| verify(exec_ctx, 0, 0, 0, expect, 1, key, value); |
| } |
| gpr_free(expect); |
| } |
| |
| /* if the above passes, then we must have just knocked this pair out of the |
| decoder stack, and so we'll be forced to re-encode it */ |
| verify(exec_ctx, 0, 0, 0, "000007 0104 deadbeef 40 026161 026261", 1, "aa", |
| "ba"); |
| } |
| |
| static void verify_table_size_change_match_elem_size(grpc_exec_ctx *exec_ctx, |
| const char *key, |
| const char *value) { |
| grpc_slice_buffer output; |
| grpc_mdelem *elem = grpc_mdelem_from_strings(exec_ctx, key, value); |
| size_t elem_size = grpc_mdelem_get_size_in_hpack_table(elem); |
| size_t initial_table_size = g_compressor.table_size; |
| grpc_linked_mdelem *e = gpr_malloc(sizeof(*e)); |
| grpc_metadata_batch b; |
| grpc_metadata_batch_init(&b); |
| e[0].md = elem; |
| e[0].prev = NULL; |
| e[0].next = NULL; |
| b.list.head = &e[0]; |
| b.list.tail = &e[0]; |
| grpc_slice_buffer_init(&output); |
| |
| grpc_transport_one_way_stats stats; |
| memset(&stats, 0, sizeof(stats)); |
| grpc_chttp2_encode_header(exec_ctx, &g_compressor, 0xdeadbeef, &b, 0, 16384, |
| &stats, &output); |
| grpc_slice_buffer_destroy_internal(exec_ctx, &output); |
| grpc_metadata_batch_destroy(exec_ctx, &b); |
| |
| GPR_ASSERT(g_compressor.table_size == elem_size + initial_table_size); |
| gpr_free(e); |
| } |
| |
| static void test_encode_header_size(grpc_exec_ctx *exec_ctx) { |
| verify_table_size_change_match_elem_size(exec_ctx, "hello", "world"); |
| verify_table_size_change_match_elem_size(exec_ctx, "hello-bin", "world"); |
| } |
| |
| static void run_test(void (*test)(grpc_exec_ctx *exec_ctx), const char *name) { |
| gpr_log(GPR_INFO, "RUN TEST: %s", name); |
| grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT; |
| grpc_chttp2_hpack_compressor_init(&g_compressor); |
| test(&exec_ctx); |
| grpc_chttp2_hpack_compressor_destroy(&exec_ctx, &g_compressor); |
| grpc_exec_ctx_finish(&exec_ctx); |
| } |
| |
| int main(int argc, char **argv) { |
| size_t i; |
| grpc_test_only_set_metadata_hash_seed(0); |
| grpc_test_init(argc, argv); |
| grpc_init(); |
| TEST(test_basic_headers); |
| TEST(test_decode_table_overflow); |
| TEST(test_encode_header_size); |
| grpc_shutdown(); |
| for (i = 0; i < num_to_delete; i++) { |
| gpr_free(to_delete[i]); |
| } |
| return g_failure; |
| } |