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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "http2/hpack/tools/hpack_block_builder.h"
#include "absl/strings/escaping.h"
#include "http2/platform/api/http2_string_utils.h"
#include "common/platform/api/quiche_test.h"
namespace http2 {
namespace test {
namespace {
const bool kUncompressed = false;
const bool kCompressed = true;
// TODO(jamessynge): Once static table code is checked in, switch to using
// constants from there.
const uint32_t kStaticTableMethodGET = 2;
const uint32_t kStaticTablePathSlash = 4;
const uint32_t kStaticTableSchemeHttp = 6;
// Tests of encoding per the RFC. See:
// http://httpwg.org/specs/rfc7541.html#header.field.representation.examples
// The expected values have been copied from the RFC.
TEST(HpackBlockBuilderTest, ExamplesFromSpecC2) {
{
HpackBlockBuilder b;
b.AppendLiteralNameAndValue(HpackEntryType::kIndexedLiteralHeader,
kUncompressed, "custom-key", kUncompressed,
"custom-header");
EXPECT_EQ(26u, b.size());
const char kExpected[] =
"\x40" // == Literal indexed ==
"\x0a" // Name length (10)
"custom-key" // Name
"\x0d" // Value length (13)
"custom-header"; // Value
EXPECT_EQ(kExpected, b.buffer());
}
{
HpackBlockBuilder b;
b.AppendNameIndexAndLiteralValue(HpackEntryType::kUnindexedLiteralHeader, 4,
kUncompressed, "/sample/path");
EXPECT_EQ(14u, b.size());
const char kExpected[] =
"\x04" // == Literal unindexed, name index 0x04 ==
"\x0c" // Value length (12)
"/sample/path"; // Value
EXPECT_EQ(kExpected, b.buffer());
}
{
HpackBlockBuilder b;
b.AppendLiteralNameAndValue(HpackEntryType::kNeverIndexedLiteralHeader,
kUncompressed, "password", kUncompressed,
"secret");
EXPECT_EQ(17u, b.size());
const char kExpected[] =
"\x10" // == Literal never indexed ==
"\x08" // Name length (8)
"password" // Name
"\x06" // Value length (6)
"secret"; // Value
EXPECT_EQ(kExpected, b.buffer());
}
{
HpackBlockBuilder b;
b.AppendIndexedHeader(2);
EXPECT_EQ(1u, b.size());
const char kExpected[] = "\x82"; // == Indexed (2) ==
EXPECT_EQ(kExpected, b.buffer());
}
}
// Tests of encoding per the RFC. See:
// http://httpwg.org/specs/rfc7541.html#request.examples.without.huffman.coding
TEST(HpackBlockBuilderTest, ExamplesFromSpecC3) {
{
// Header block to encode:
// :method: GET
// :scheme: http
// :path: /
// :authority: www.example.com
HpackBlockBuilder b;
b.AppendIndexedHeader(2); // :method: GET
b.AppendIndexedHeader(6); // :scheme: http
b.AppendIndexedHeader(4); // :path: /
b.AppendNameIndexAndLiteralValue(HpackEntryType::kIndexedLiteralHeader, 1,
kUncompressed, "www.example.com");
EXPECT_EQ(20u, b.size());
// Hex dump of encoded data (copied from RFC):
// 0x0000: 8286 8441 0f77 7777 2e65 7861 6d70 6c65 ...A.www.example
// 0x0010: 2e63 6f6d .com
const std::string expected =
absl::HexStringToBytes("828684410f7777772e6578616d706c652e636f6d");
EXPECT_EQ(expected, b.buffer());
}
}
// Tests of encoding per the RFC. See:
// http://httpwg.org/specs/rfc7541.html#request.examples.with.huffman.coding
TEST(HpackBlockBuilderTest, ExamplesFromSpecC4) {
{
// Header block to encode:
// :method: GET
// :scheme: http
// :path: /
// :authority: www.example.com (Huffman encoded)
HpackBlockBuilder b;
b.AppendIndexedHeader(kStaticTableMethodGET);
b.AppendIndexedHeader(kStaticTableSchemeHttp);
b.AppendIndexedHeader(kStaticTablePathSlash);
const char kHuffmanWwwExampleCom[] = {'\xf1', '\xe3', '\xc2', '\xe5',
'\xf2', '\x3a', '\x6b', '\xa0',
'\xab', '\x90', '\xf4', '\xff'};
b.AppendNameIndexAndLiteralValue(
HpackEntryType::kIndexedLiteralHeader, 1, kCompressed,
absl::string_view(kHuffmanWwwExampleCom, sizeof kHuffmanWwwExampleCom));
EXPECT_EQ(17u, b.size());
// Hex dump of encoded data (copied from RFC):
// 0x0000: 8286 8441 8cf1 e3c2 e5f2 3a6b a0ab 90f4 ...A......:k....
// 0x0010: ff .
const std::string expected =
absl::HexStringToBytes("828684418cf1e3c2e5f23a6ba0ab90f4ff");
EXPECT_EQ(expected, b.buffer());
}
}
TEST(HpackBlockBuilderTest, DynamicTableSizeUpdate) {
{
HpackBlockBuilder b;
b.AppendDynamicTableSizeUpdate(0);
EXPECT_EQ(1u, b.size());
const char kData[] = {'\x20'};
absl::string_view expected(kData, sizeof kData);
EXPECT_EQ(expected, b.buffer());
}
{
HpackBlockBuilder b;
b.AppendDynamicTableSizeUpdate(4096); // The default size.
EXPECT_EQ(3u, b.size());
const char kData[] = {'\x3f', '\xe1', '\x1f'};
absl::string_view expected(kData, sizeof kData);
EXPECT_EQ(expected, b.buffer());
}
{
HpackBlockBuilder b;
b.AppendDynamicTableSizeUpdate(1000000000000); // A very large value.
EXPECT_EQ(7u, b.size());
const char kData[] = {'\x3f', '\xe1', '\x9f', '\x94',
'\xa5', '\x8d', '\x1d'};
absl::string_view expected(kData, sizeof kData);
EXPECT_EQ(expected, b.buffer());
}
}
} // namespace
} // namespace test
} // namespace http2