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// Copyright 2017 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 <string>
#include "base/base64.h"
#include "base/strings/string_util.h"
#include "base/strings/utf_string_conversions.h"
#include "net/base/test_completion_callback.h"
#include "net/dns/mock_host_resolver.h"
#include "net/http/http_auth_challenge_tokenizer.h"
#include "net/http/http_auth_handler_ntlm.h"
#include "net/http/http_request_info.h"
#include "net/http/mock_allow_http_auth_preferences.h"
#include "net/log/net_log_with_source.h"
#include "net/ntlm/ntlm.h"
#include "net/ntlm/ntlm_buffer_reader.h"
#include "net/ntlm/ntlm_buffer_writer.h"
#include "net/ntlm/ntlm_test_data.h"
#include "net/ssl/ssl_info.h"
#include "net/test/gtest_util.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/platform_test.h"
namespace net {
class HttpAuthHandlerNtlmPortableTest : public PlatformTest {
public:
// Test input value defined in [MS-NLMP] Section 4.2.1.
HttpAuthHandlerNtlmPortableTest() {
http_auth_preferences_.reset(new MockAllowHttpAuthPreferences());
factory_.reset(new HttpAuthHandlerNTLM::Factory());
factory_->set_http_auth_preferences(http_auth_preferences_.get());
creds_ = AuthCredentials(
ntlm::test::kNtlmDomain + base::ASCIIToUTF16("\\") + ntlm::test::kUser,
ntlm::test::kPassword);
}
int CreateHandler() {
GURL gurl("https://foo.com");
SSLInfo null_ssl_info;
return factory_->CreateAuthHandlerFromString(
"NTLM", HttpAuth::AUTH_SERVER, null_ssl_info, gurl, NetLogWithSource(),
&auth_handler_);
}
std::string CreateNtlmAuthHeader(ntlm::Buffer message) {
std::string output;
base::Base64Encode(
base::StringPiece(reinterpret_cast<const char*>(message.data()),
message.size()),
&output);
return "NTLM " + output;
}
std::string CreateNtlmAuthHeader(const uint8_t* buffer, size_t length) {
return CreateNtlmAuthHeader(ntlm::Buffer(buffer, length));
}
HttpAuth::AuthorizationResult HandleAnotherChallenge(
const std::string& challenge) {
HttpAuthChallengeTokenizer tokenizer(challenge.begin(), challenge.end());
return GetAuthHandler()->HandleAnotherChallenge(&tokenizer);
}
bool DecodeChallenge(const std::string& challenge, std::string* decoded) {
HttpAuthChallengeTokenizer tokenizer(challenge.begin(), challenge.end());
return base::Base64Decode(tokenizer.base64_param(), decoded);
}
int GenerateAuthToken(std::string* token) {
TestCompletionCallback callback;
HttpRequestInfo request_info;
return callback.GetResult(GetAuthHandler()->GenerateAuthToken(
GetCreds(), &request_info, callback.callback(), token));
}
bool ReadBytesPayload(ntlm::NtlmBufferReader* reader,
uint8_t* buffer,
size_t len) {
ntlm::SecurityBuffer sec_buf;
return reader->ReadSecurityBuffer(&sec_buf) && (sec_buf.length == len) &&
reader->ReadBytesFrom(sec_buf, buffer);
}
// Reads bytes from a payload and assigns them to a string. This makes
// no assumptions about the underlying encoding.
bool ReadStringPayload(ntlm::NtlmBufferReader* reader, std::string* str) {
ntlm::SecurityBuffer sec_buf;
if (!reader->ReadSecurityBuffer(&sec_buf))
return false;
std::unique_ptr<uint8_t[]> raw(new uint8_t[sec_buf.length]);
if (!reader->ReadBytesFrom(sec_buf, raw.get()))
return false;
str->assign(reinterpret_cast<const char*>(raw.get()), sec_buf.length);
return true;
}
// Reads bytes from a payload and assigns them to a string16. This makes
// no assumptions about the underlying encoding. This will fail if there
// are an odd number of bytes in the payload.
void ReadString16Payload(ntlm::NtlmBufferReader* reader,
base::string16* str) {
ntlm::SecurityBuffer sec_buf;
EXPECT_TRUE(reader->ReadSecurityBuffer(&sec_buf));
EXPECT_EQ(0, sec_buf.length % 2);
std::unique_ptr<uint8_t[]> raw(new uint8_t[sec_buf.length]);
EXPECT_TRUE(reader->ReadBytesFrom(sec_buf, raw.get()));
#ifdef IS_BIG_ENDIAN
for (size_t i = 0; i < sec_buf.length; i += 2) {
std::swap(raw[i], raw[i + 1]);
}
#endif
str->assign(reinterpret_cast<const base::char16*>(raw.get()),
sec_buf.length / 2);
}
int GetGenerateAuthTokenResult() {
std::string token;
return GenerateAuthToken(&token);
}
AuthCredentials* GetCreds() { return &creds_; }
HttpAuthHandlerNTLM* GetAuthHandler() {
return static_cast<HttpAuthHandlerNTLM*>(auth_handler_.get());
}
static void MockRandom(uint8_t* output, size_t n) {
// This is set to 0xaa because the client challenge for testing in
// [MS-NLMP] Section 4.2.1 is 8 bytes of 0xaa.
memset(output, 0xaa, n);
}
static uint64_t MockGetMSTime() {
// Tue, 23 May 2017 20:13:07 +0000
return 131400439870000000;
}
static std::string MockGetHostName() { return ntlm::test::kHostnameAscii; }
private:
AuthCredentials creds_;
std::unique_ptr<HttpAuthHandler> auth_handler_;
std::unique_ptr<MockAllowHttpAuthPreferences> http_auth_preferences_;
std::unique_ptr<HttpAuthHandlerNTLM::Factory> factory_;
};
TEST_F(HttpAuthHandlerNtlmPortableTest, SimpleConstruction) {
ASSERT_EQ(OK, CreateHandler());
ASSERT_TRUE(GetAuthHandler() != nullptr);
}
TEST_F(HttpAuthHandlerNtlmPortableTest, DoNotAllowDefaultCreds) {
ASSERT_EQ(OK, CreateHandler());
ASSERT_FALSE(GetAuthHandler()->AllowsDefaultCredentials());
}
TEST_F(HttpAuthHandlerNtlmPortableTest, AllowsExplicitCredentials) {
ASSERT_EQ(OK, CreateHandler());
ASSERT_TRUE(GetAuthHandler()->AllowsExplicitCredentials());
}
TEST_F(HttpAuthHandlerNtlmPortableTest, VerifyType1Message) {
ASSERT_EQ(OK, CreateHandler());
std::string token;
ASSERT_EQ(OK, GenerateAuthToken(&token));
// The type 1 message generated is always the same. The only variable
// part of the message is the flags and this implementation always offers
// the same set of flags.
ASSERT_EQ("NTLM TlRMTVNTUAABAAAAB4IIAAAAAAAgAAAAAAAAACAAAAA=", token);
}
TEST_F(HttpAuthHandlerNtlmPortableTest, EmptyTokenFails) {
ASSERT_EQ(OK, CreateHandler());
ASSERT_EQ(OK, GetGenerateAuthTokenResult());
// The encoded token for a type 2 message can't be empty.
ASSERT_EQ(HttpAuth::AUTHORIZATION_RESULT_REJECT,
HandleAnotherChallenge("NTLM"));
}
TEST_F(HttpAuthHandlerNtlmPortableTest, InvalidBase64Encoding) {
ASSERT_EQ(OK, CreateHandler());
ASSERT_EQ(OK, GetGenerateAuthTokenResult());
// Token isn't valid base64.
ASSERT_EQ(HttpAuth::AUTHORIZATION_RESULT_ACCEPT,
HandleAnotherChallenge("NTLM !!!!!!!!!!!!!"));
ASSERT_EQ(ERR_UNEXPECTED, GetGenerateAuthTokenResult());
}
TEST_F(HttpAuthHandlerNtlmPortableTest, CantChangeSchemeMidway) {
ASSERT_EQ(OK, CreateHandler());
ASSERT_EQ(OK, GetGenerateAuthTokenResult());
// Can't switch to a different auth scheme in the middle of the process.
ASSERT_EQ(HttpAuth::AUTHORIZATION_RESULT_INVALID,
HandleAnotherChallenge("Negotiate SSdtIG5vdCBhIHJlYWwgdG9rZW4h"));
}
TEST_F(HttpAuthHandlerNtlmPortableTest, NtlmV1AuthenticationSuccess) {
HttpAuthHandlerNTLM::ScopedProcSetter proc_setter(MockGetMSTime, MockRandom,
MockGetHostName);
ASSERT_EQ(OK, CreateHandler());
ASSERT_EQ(OK, GetGenerateAuthTokenResult());
std::string token;
ASSERT_EQ(HttpAuth::AUTHORIZATION_RESULT_ACCEPT,
HandleAnotherChallenge(
CreateNtlmAuthHeader(ntlm::test::kChallengeMsgV1,
arraysize(ntlm::test::kChallengeMsgV1))));
ASSERT_EQ(OK, GenerateAuthToken(&token));
// Validate the authenticate message
std::string decoded;
ASSERT_TRUE(DecodeChallenge(token, &decoded));
ASSERT_EQ(arraysize(ntlm::test::kExpectedAuthenticateMsgSpecResponseV1),
decoded.size());
ASSERT_EQ(0, memcmp(decoded.data(),
ntlm::test::kExpectedAuthenticateMsgSpecResponseV1,
decoded.size()));
}
} // namespace net
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