chrome/browser/ssl/ssl_error_classification_unittest.cc

// Copyright 2014 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/ssl/ssl_error_classification.h"

#include "base/files/file_path.h"
#include "base/strings/string_split.h"
#include "base/time/time.h"
#include "net/base/test_data_directory.h"
#include "net/cert/x509_cert_types.h"
#include "net/cert/x509_certificate.h"
#include "net/test/cert_test_util.h"
#include "net/test/test_certificate_data.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"

using base::Time;

TEST(SSLErrorClassificationTest, TestDateInvalidScore) {
  base::FilePath certs_dir = net::GetTestCertsDirectory();
  scoped_refptr<net::X509Certificate> expired_cert =
      net::ImportCertFromFile(certs_dir, "expired_cert.pem");
  base::Time time;
  GURL origin("https://example.com");

  {
    EXPECT_TRUE(base::Time::FromString("Wed, 03 Jan 2007 12:00:00 GMT", &time));
    SSLErrorClassification ssl_error(time, origin, *expired_cert);
    EXPECT_FLOAT_EQ(0.2f, ssl_error.CalculateScoreTimePassedSinceExpiry());
  }

  {
    EXPECT_TRUE(base::Time::FromString("Sat, 06 Jan 2007 12:00:00 GMT", &time));
    SSLErrorClassification ssl_error(time, origin, *expired_cert);
    EXPECT_FLOAT_EQ(0.3f, ssl_error.CalculateScoreTimePassedSinceExpiry());
  }

  {
    EXPECT_TRUE(base::Time::FromString("Mon, 08 Jan 2007 12:00:00 GMT", &time));
    SSLErrorClassification ssl_error(time, origin, *expired_cert);
    EXPECT_FLOAT_EQ(0.4f, ssl_error.CalculateScoreTimePassedSinceExpiry());
  }
}

TEST(SSLErrorClassificationTest, TestNameMismatch) {
  scoped_refptr<net::X509Certificate> google_cert(
      net::X509Certificate::CreateFromBytes(
          reinterpret_cast<const char*>(google_der), sizeof(google_der)));
  ASSERT_NE(static_cast<net::X509Certificate*>(NULL), google_cert);
  base::Time time = base::Time::NowFromSystemTime();
  std::vector<std::string> dns_names_google;
  dns_names_google.push_back("www");
  dns_names_google.push_back("google");
  dns_names_google.push_back("com");
  std::vector<std::vector<std::string>> dns_name_tokens_google;
  dns_name_tokens_google.push_back(dns_names_google);
  {
    GURL origin("https://google.com");
    std::string host_name = origin.host();
    std::vector<std::string> host_name_tokens;
    base::SplitStringDontTrim(host_name, '.', &host_name_tokens);
    SSLErrorClassification ssl_error(time, origin, *google_cert);
    EXPECT_TRUE(ssl_error.IsWWWSubDomainMatch());
    EXPECT_FALSE(ssl_error.NameUnderAnyNames(host_name_tokens,
                                             dns_name_tokens_google));
    EXPECT_FALSE(ssl_error.AnyNamesUnderName(dns_name_tokens_google,
                                             host_name_tokens));
    EXPECT_FALSE(ssl_error.IsSubDomainOutsideWildcard(host_name_tokens));
    EXPECT_FALSE(ssl_error.IsCertLikelyFromMultiTenantHosting());
  }

  {
    GURL origin("https://foo.blah.google.com");
    std::string host_name = origin.host();
    std::vector<std::string> host_name_tokens;
    base::SplitStringDontTrim(host_name, '.', &host_name_tokens);
    SSLErrorClassification ssl_error(time, origin, *google_cert);
    EXPECT_FALSE(ssl_error.IsWWWSubDomainMatch());
    EXPECT_FALSE(ssl_error.NameUnderAnyNames(host_name_tokens,
                                             dns_name_tokens_google));
    EXPECT_FALSE(ssl_error.AnyNamesUnderName(dns_name_tokens_google,
                                             host_name_tokens));
  }

  {
    GURL origin("https://foo.www.google.com");
    std::string host_name = origin.host();
    std::vector<std::string> host_name_tokens;
    base::SplitStringDontTrim(host_name, '.', &host_name_tokens);
    SSLErrorClassification ssl_error(time, origin, *google_cert);
    EXPECT_FALSE(ssl_error.IsWWWSubDomainMatch());
    EXPECT_TRUE(ssl_error.NameUnderAnyNames(host_name_tokens,
                                            dns_name_tokens_google));
    EXPECT_FALSE(ssl_error.AnyNamesUnderName(dns_name_tokens_google,
                                             host_name_tokens));
  }

  {
     GURL origin("https://www.google.com.foo");
     std::string host_name = origin.host();
     std::vector<std::string> host_name_tokens;
     base::SplitStringDontTrim(host_name, '.', &host_name_tokens);
     SSLErrorClassification ssl_error(time, origin, *google_cert);
     EXPECT_FALSE(ssl_error.IsWWWSubDomainMatch());
     EXPECT_FALSE(ssl_error.NameUnderAnyNames(host_name_tokens,
                                              dns_name_tokens_google));
     EXPECT_FALSE(ssl_error.AnyNamesUnderName(dns_name_tokens_google,
                                              host_name_tokens));
  }

  {
    GURL origin("https://www.foogoogle.com.");
    std::string host_name = origin.host();
    std::vector<std::string> host_name_tokens;
    base::SplitStringDontTrim(host_name, '.', &host_name_tokens);
    SSLErrorClassification ssl_error(time, origin, *google_cert);
    EXPECT_FALSE(ssl_error.IsWWWSubDomainMatch());
    EXPECT_FALSE(ssl_error.NameUnderAnyNames(host_name_tokens,
                                             dns_name_tokens_google));
    EXPECT_FALSE(ssl_error.AnyNamesUnderName(dns_name_tokens_google,
                                             host_name_tokens));
  }

  scoped_refptr<net::X509Certificate> webkit_cert(
      net::X509Certificate::CreateFromBytes(
          reinterpret_cast<const char*>(webkit_der), sizeof(webkit_der)));
  ASSERT_NE(static_cast<net::X509Certificate*>(NULL), webkit_cert);
  std::vector<std::string> dns_names_webkit;
  dns_names_webkit.push_back("webkit");
  dns_names_webkit.push_back("org");
  std::vector<std::vector<std::string>> dns_name_tokens_webkit;
  dns_name_tokens_webkit.push_back(dns_names_webkit);
  {
    GURL origin("https://a.b.webkit.org");
    std::string host_name = origin.host();
    std::vector<std::string> host_name_tokens;
    base::SplitStringDontTrim(host_name, '.', &host_name_tokens);
    SSLErrorClassification ssl_error(time, origin, *webkit_cert);
    EXPECT_FALSE(ssl_error.IsWWWSubDomainMatch());
    EXPECT_FALSE(ssl_error.NameUnderAnyNames(host_name_tokens,
                                             dns_name_tokens_webkit));
    EXPECT_FALSE(ssl_error.AnyNamesUnderName(dns_name_tokens_webkit,
                                             host_name_tokens));
    EXPECT_TRUE(ssl_error.IsSubDomainOutsideWildcard(host_name_tokens));
    EXPECT_FALSE(ssl_error.IsCertLikelyFromMultiTenantHosting());
  }
}

TEST(SSLErrorClassificationTest, TestHostNameHasKnownTLD) {
  std::string url1 = "www.google.com";
  std::string url2 = "b.appspot.com";
  std::string url3 = "a.private";
  EXPECT_TRUE(SSLErrorClassification::IsHostNameKnownTLD(url1));
  EXPECT_TRUE(SSLErrorClassification::IsHostNameKnownTLD(url2));
  EXPECT_FALSE(SSLErrorClassification::IsHostNameKnownTLD(url3));
}