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// Copyright (c) 2013 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 "net/quic/crypto/cert_compressor.h"
#include "base/strings/string_number_conversions.h"
#include "net/quic/quic_utils.h"
#include "net/quic/test_tools/crypto_test_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
using base::StringPiece;
using std::string;
using std::vector;
namespace net {
namespace test {
TEST(CertCompressor, EmptyChain) {
vector<string> chain;
const string compressed = CertCompressor::CompressChain(
chain, StringPiece(), StringPiece(), nullptr);
EXPECT_EQ("00", base::HexEncode(compressed.data(), compressed.size()));
vector<string> chain2, cached_certs;
ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs, nullptr,
&chain2));
EXPECT_EQ(chain.size(), chain2.size());
}
TEST(CertCompressor, Compressed) {
vector<string> chain;
chain.push_back("testcert");
const string compressed = CertCompressor::CompressChain(
chain, StringPiece(), StringPiece(), nullptr);
ASSERT_GE(compressed.size(), 2u);
EXPECT_EQ("0100", base::HexEncode(compressed.substr(0, 2).data(), 2));
vector<string> chain2, cached_certs;
ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs, nullptr,
&chain2));
EXPECT_EQ(chain.size(), chain2.size());
EXPECT_EQ(chain[0], chain2[0]);
}
TEST(CertCompressor, Common) {
vector<string> chain;
chain.push_back("testcert");
static const uint64 set_hash = 42;
scoped_ptr<CommonCertSets> common_sets(
CryptoTestUtils::MockCommonCertSets(chain[0], set_hash, 1));
const string compressed = CertCompressor::CompressChain(
chain,
StringPiece(reinterpret_cast<const char*>(&set_hash), sizeof(set_hash)),
StringPiece(), common_sets.get());
const string common("03" /* common */
"2A00000000000000" /* set hash 42 */
"01000000" /* index 1 */
"00" /* end of list */);
EXPECT_EQ(common.data(),
base::HexEncode(compressed.data(), compressed.size()));
vector<string> chain2, cached_certs;
ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs,
common_sets.get(), &chain2));
EXPECT_EQ(chain.size(), chain2.size());
EXPECT_EQ(chain[0], chain2[0]);
}
TEST(CertCompressor, Cached) {
vector<string> chain;
chain.push_back("testcert");
uint64 hash = QuicUtils::FNV1a_64_Hash(chain[0].data(), chain[0].size());
StringPiece hash_bytes(reinterpret_cast<char*>(&hash), sizeof(hash));
const string compressed =
CertCompressor::CompressChain(chain, StringPiece(), hash_bytes, nullptr);
EXPECT_EQ("02" /* cached */ +
base::HexEncode(hash_bytes.data(), hash_bytes.size()) +
"00" /* end of list */,
base::HexEncode(compressed.data(), compressed.size()));
vector<string> cached_certs, chain2;
cached_certs.push_back(chain[0]);
ASSERT_TRUE(CertCompressor::DecompressChain(compressed, cached_certs, nullptr,
&chain2));
EXPECT_EQ(chain.size(), chain2.size());
EXPECT_EQ(chain[0], chain2[0]);
}
TEST(CertCompressor, BadInputs) {
vector<string> cached_certs, chain;
/* bad entry type */
const string bad_entry("04");
EXPECT_FALSE(CertCompressor::DecompressChain(
base::HexEncode(bad_entry.data(), bad_entry.size()),
cached_certs, nullptr, &chain));
/* no terminator */
const string no_terminator("01");
EXPECT_FALSE(CertCompressor::DecompressChain(
base::HexEncode(no_terminator.data(), no_terminator.size()),
cached_certs, nullptr, &chain));
/* hash truncated */
const string hash_truncated("0200");
EXPECT_FALSE(CertCompressor::DecompressChain(
base::HexEncode(hash_truncated.data(), hash_truncated.size()),
cached_certs, nullptr, &chain));
/* hash and index truncated */
const string hash_and_index_truncated("0300");
EXPECT_FALSE(CertCompressor::DecompressChain(
base::HexEncode(hash_and_index_truncated.data(),
hash_and_index_truncated.size()),
cached_certs, nullptr, &chain));
/* without a CommonCertSets */
const string without_a_common_cert_set(
"03" "0000000000000000" "00000000");
EXPECT_FALSE(CertCompressor::DecompressChain(
base::HexEncode(without_a_common_cert_set.data(),
without_a_common_cert_set.size()),
cached_certs, nullptr, &chain));
scoped_ptr<CommonCertSets> common_sets(
CryptoTestUtils::MockCommonCertSets("foo", 42, 1));
/* incorrect hash and index */
const string incorrect_hash_and_index(
"03" "a200000000000000" "00000000");
EXPECT_FALSE(CertCompressor::DecompressChain(
base::HexEncode(incorrect_hash_and_index.data(),
incorrect_hash_and_index.size()),
cached_certs, nullptr, &chain));
}
} // namespace test
} // namespace net
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