| // Copyright (c) 2011 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 "chrome/browser/safe_browsing/signature_util.h" |
| |
| #include <string> |
| #include <vector> |
| |
| #include "base/base_paths.h" |
| #include "base/files/file_path.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/path_service.h" |
| #include "chrome/common/safe_browsing/csd.pb.h" |
| #include "net/cert/x509_cert_types.h" |
| #include "net/cert/x509_certificate.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace safe_browsing { |
| |
| class SignatureUtilWinTest : public testing::Test { |
| protected: |
| virtual void SetUp() { |
| base::FilePath source_path; |
| ASSERT_TRUE(PathService::Get(base::DIR_SOURCE_ROOT, &source_path)); |
| testdata_path_ = source_path |
| .AppendASCII("chrome") |
| .AppendASCII("test") |
| .AppendASCII("data") |
| .AppendASCII("safe_browsing") |
| .AppendASCII("download_protection"); |
| } |
| |
| // Given a certificate chain protobuf, parse it into X509Certificates. |
| void ParseCertificateChain( |
| const ClientDownloadRequest_CertificateChain& chain, |
| std::vector<scoped_refptr<net::X509Certificate> >* certs) { |
| for (int i = 0; i < chain.element_size(); ++i) { |
| certs->push_back( |
| net::X509Certificate::CreateFromBytes( |
| chain.element(i).certificate().data(), |
| chain.element(i).certificate().size())); |
| } |
| } |
| |
| base::FilePath testdata_path_; |
| }; |
| |
| TEST_F(SignatureUtilWinTest, UntrustedSignedBinary) { |
| // signed.exe is signed by an untrusted root CA. |
| scoped_refptr<SignatureUtil> signature_util(new SignatureUtil()); |
| ClientDownloadRequest_SignatureInfo signature_info; |
| signature_util->CheckSignature(testdata_path_.Append(L"signed.exe"), |
| &signature_info); |
| ASSERT_EQ(1, signature_info.certificate_chain_size()); |
| std::vector<scoped_refptr<net::X509Certificate> > certs; |
| ParseCertificateChain(signature_info.certificate_chain(0), &certs); |
| ASSERT_EQ(2, certs.size()); |
| EXPECT_EQ("Joe's-Software-Emporium", certs[0]->subject().common_name); |
| EXPECT_EQ("Root Agency", certs[1]->subject().common_name); |
| |
| EXPECT_TRUE(signature_info.has_trusted()); |
| EXPECT_FALSE(signature_info.trusted()); |
| } |
| |
| TEST_F(SignatureUtilWinTest, TrustedBinary) { |
| // wow_helper.exe is signed using Google's signing certifiacte. |
| scoped_refptr<SignatureUtil> signature_util(new SignatureUtil()); |
| ClientDownloadRequest_SignatureInfo signature_info; |
| signature_util->CheckSignature(testdata_path_.Append(L"wow_helper.exe"), |
| &signature_info); |
| ASSERT_EQ(1, signature_info.certificate_chain_size()); |
| std::vector<scoped_refptr<net::X509Certificate> > certs; |
| ParseCertificateChain(signature_info.certificate_chain(0), &certs); |
| ASSERT_EQ(3, certs.size()); |
| |
| EXPECT_EQ("Google Inc", certs[0]->subject().common_name); |
| EXPECT_EQ("VeriSign Class 3 Code Signing 2009-2 CA", |
| certs[1]->subject().common_name); |
| EXPECT_EQ("Class 3 Public Primary Certification Authority", |
| certs[2]->subject().organization_unit_names[0]); |
| |
| EXPECT_TRUE(signature_info.trusted()); |
| } |
| |
| TEST_F(SignatureUtilWinTest, UnsignedBinary) { |
| // unsigned.exe has no signature information. |
| scoped_refptr<SignatureUtil> signature_util(new SignatureUtil()); |
| ClientDownloadRequest_SignatureInfo signature_info; |
| signature_util->CheckSignature(testdata_path_.Append(L"unsigned.exe"), |
| &signature_info); |
| EXPECT_EQ(0, signature_info.certificate_chain_size()); |
| EXPECT_FALSE(signature_info.has_trusted()); |
| } |
| |
| TEST_F(SignatureUtilWinTest, NonExistentBinary) { |
| // Test a file that doesn't exist. |
| scoped_refptr<SignatureUtil> signature_util(new SignatureUtil()); |
| ClientDownloadRequest_SignatureInfo signature_info; |
| signature_util->CheckSignature(testdata_path_.Append(L"doesnotexist.exe"), |
| &signature_info); |
| EXPECT_EQ(0, signature_info.certificate_chain_size()); |
| EXPECT_FALSE(signature_info.has_trusted()); |
| } |
| |
| } // namespace safe_browsing |