Common Name Mismatch Handler For WWW Subdomain Mismatch case

chrome/browser/ssl/ssl_browser_tests.cc

Index: chrome/browser/ssl/ssl_browser_tests.cc
diff --git a/chrome/browser/ssl/ssl_browser_tests.cc b/chrome/browser/ssl/ssl_browser_tests.cc
index 31a3f6a13dbca0299249c2e0d90f7547f2626427..a34b1f7a4c838aeaac2d3a4eb29ed1d89da19489 100644
--- a/chrome/browser/ssl/ssl_browser_tests.cc
+++ b/chrome/browser/ssl/ssl_browser_tests.cc
@@ -26,7 +26,9 @@
 #include "chrome/browser/ssl/certificate_error_report.h"
 #include "chrome/browser/ssl/certificate_reporting_test_utils.h"
 #include "chrome/browser/ssl/chrome_ssl_host_state_delegate.h"
+#include "chrome/browser/ssl/common_name_mismatch_handler.h"
 #include "chrome/browser/ssl/ssl_blocking_page.h"
+#include "chrome/browser/ssl/ssl_error_handler.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_navigator.h"
@@ -54,14 +56,17 @@
 #include "content/public/common/ssl_status.h"
 #include "content/public/test/browser_test_utils.h"
 #include "content/public/test/download_test_observer.h"
+#include "content/public/test/test_navigation_observer.h"
 #include "content/public/test/test_renderer_host.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_errors.h"
 #include "net/base/test_data_directory.h"
 #include "net/cert/cert_status_flags.h"
 #include "net/cert/x509_certificate.h"
+#include "net/dns/mock_host_resolver.h"
 #include "net/ssl/ssl_info.h"
 #include "net/test/spawned_test_server/spawned_test_server.h"
+#include "net/test/test_certificate_data.h"
 #include "net/url_request/url_request_context.h"
 
 #if defined(USE_NSS_CERTS)
@@ -207,7 +212,15 @@ class SSLUITest
                                  base::FilePath(kDocRoot)),
         wss_server_expired_(net::SpawnedTestServer::TYPE_WSS,
                             SSLOptions(SSLOptions::CERT_EXPIRED),
-                            net::GetWebSocketTestDataDirectory()) {}
+                            net::GetWebSocketTestDataDirectory()),
+        https_server_example_domain_(
+            net::SpawnedTestServer::TYPE_HTTPS,
+            SSLOptions(SSLOptions::CERT_EXAMPLE_DOMAIN),
+            base::FilePath(kDocRoot)),
+        https_server_www_example_domain_(
+            net::SpawnedTestServer::TYPE_HTTPS,
+            SSLOptions(SSLOptions::CERT_WWW_EXAMPLE_DOMAIN),
+            base::FilePath(kDocRoot)) {}
 
   void SetUpCommandLine(base::CommandLine* command_line) override {
     // Browser will both run and display insecure content.
@@ -426,6 +439,8 @@ class SSLUITest
   net::SpawnedTestServer https_server_expired_;
   net::SpawnedTestServer https_server_mismatched_;
   net::SpawnedTestServer wss_server_expired_;
+  net::SpawnedTestServer https_server_example_domain_;
+  net::SpawnedTestServer https_server_www_example_domain_;
 
  private:
   typedef net::SpawnedTestServer::SSLOptions SSLOptions;
@@ -2224,6 +2239,300 @@ IN_PROC_BROWSER_TEST_F(SSLUITest, BadCertFollowedByGoodCert) {
   EXPECT_FALSE(state->HasAllowException(https_server_host));
 }
 
+// Verifies that invoking the SSL Blocking page with a suggested URL displays
+// the common name mismatch interstitial with a link to suggested URL.
+IN_PROC_BROWSER_TEST_F(SSLUITest, SSLBlockingPageWithSuggestedURL) {
+  content::WebContents* contents =
+      browser()->tab_strip_model()->GetActiveWebContents();
+  net::SSLInfo ssl_info;
+  ssl_info.cert = net::X509Certificate::CreateFromBytes(
+      reinterpret_cast<const char*>(google_der), sizeof(google_der));
+  // Create a new SSL blocking page for https://example.com with
+  // https://www.example.com as the suggested URL.
+  SSLBlockingPage* blocking_page = new SSLBlockingPage(
+      contents, net::ERR_CERT_COMMON_NAME_INVALID, ssl_info,
+      GURL("https://example.com"), 0, base::Time::NowFromSystemTime(), nullptr,
+      base::Callback<void(bool)>(), GURL("https://www.example.com"));
+  blocking_page->Show();
+
+  WaitForInterstitialAttach(contents);
+
+  EXPECT_TRUE(
+      WaitForRenderFrameReady(contents->GetInterstitialPage()->GetMainFrame()));
+  // The interstitial should display a link to www.example.com
+  EXPECT_TRUE(chrome_browser_interstitials::IsInterstitialDisplayingText(
+      contents->GetInterstitialPage(), "www.example.com"));
+  // Verify that the link has the text "suggest-link", the id of the
+  // link element displayed.
+  EXPECT_TRUE(chrome_browser_interstitials::IsInterstitialDisplayingText(
+      contents->GetInterstitialPage(), "suggest-link"));
+}
+
+// Visit the URL www.example.com on a server that presents a valid certificate
+// for example.com. Verify that the common name mismatch interstitial is
+// displayed with a link to example.com. Click the suggested URL link
+// and make sure the page navigates to suggested URL.
+IN_PROC_BROWSER_TEST_F(SSLUITest, ShouldShowWWWSubdomainMismatchInterstitial) {
+  // Starts a server with a valid certificate for "example.com".
+  ASSERT_TRUE(https_server_example_domain_.Start());
+
+  host_resolver()->AddRule("example.com", "127.0.0.1");
+  host_resolver()->AddRule("www.example.com", "127.0.0.1");
+
+  // The path does not matter.
+  GURL https_server_url =
+      https_server_example_domain_.GetURL("files/ssl/google.html?a=b");
+  GURL::Replacements replacements;
+  replacements.SetHostStr("www.example.com");
+  GURL https_server_mismatched_url =
+      https_server_url.ReplaceComponents(replacements);
+
+  ui_test_utils::NavigateToURL(browser(), https_server_mismatched_url);
+
+  WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();
+  WaitForInterstitialAttach(contents);
+  // An interstitial should be displayed with a
+  // |CERT_STATUS_COMMON_NAME_INVALID| error.
+  CheckAuthenticationBrokenState(contents, net::CERT_STATUS_COMMON_NAME_INVALID,
+                                 AuthState::SHOWING_INTERSTITIAL);
+  EXPECT_EQ(SSLBlockingPage::kTypeForTesting, contents->GetInterstitialPage()
+                                                  ->GetDelegateForTesting()
+                                                  ->GetTypeForTesting());
+
+  content::RenderFrameHost* rfh =
+      contents->GetInterstitialPage()->GetMainFrame();
+  EXPECT_TRUE(WaitForRenderFrameReady(rfh));
+  // The interstitial should display a link to www.example.com
+  EXPECT_TRUE(chrome_browser_interstitials::IsInterstitialDisplayingText(
+      contents->GetInterstitialPage(), "example.com"));
+  // Verify that the link has the text "suggest-link", the id of the
+  // link element displayed.
+  EXPECT_TRUE(chrome_browser_interstitials::IsInterstitialDisplayingText(
+      contents->GetInterstitialPage(), "suggest-link"));
+
+  const char kOpenSuggestedLinkJS[] =
+      "document.getElementById('suggest-link').click();";
+  content::TestNavigationObserver observer(contents, 1);
+  EXPECT_TRUE(content::ExecuteScript(rfh, kClickConnectButtonJS));
+  observer.Wait();
+
+  CheckAuthenticatedState(contents, AuthState::NONE);
+  replacements.SetHostStr("example.com");
+  GURL https_server_new_url = https_server_url.ReplaceComponents(replacements);
+  // Verify that the current URL is the suggested URL.
+  EXPECT_EQ(https_server_new_url.spec(),
+            contents->GetLastCommittedURL().spec());
+}
+
+// Visit the URL example.com on a server that presents a valid certificate
+// for www.example.com. Verify that the common name mismatch interstitial is
+// displayed with a link to www.example.com.
+IN_PROC_BROWSER_TEST_F(SSLUITest, CheckWWWSubdomainMismatchInverse) {
+  // Starts a server with a valid certificate for "example.com".
+  ASSERT_TRUE(https_server_www_example_domain_.Start());
+
+  host_resolver()->AddRule("example.com", "127.0.0.1");
+  host_resolver()->AddRule("www.example.com", "127.0.0.1");
+
+  GURL https_server_url =
+      https_server_www_example_domain_.GetURL("files/ssl/google.html?a=b");
+  GURL::Replacements replacements;
+  replacements.SetHostStr("example.com");
+  GURL https_server_mismatched_url =
+      https_server_url.ReplaceComponents(replacements);
+
+  ui_test_utils::NavigateToURL(browser(), https_server_mismatched_url);
+
+  WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();
+  WaitForInterstitialAttach(contents);
+  CheckAuthenticationBrokenState(contents, net::CERT_STATUS_COMMON_NAME_INVALID,
+                                 AuthState::SHOWING_INTERSTITIAL);
+  EXPECT_EQ(SSLBlockingPage::kTypeForTesting, contents->GetInterstitialPage()
+                                                  ->GetDelegateForTesting()
+                                                  ->GetTypeForTesting());
+
+  EXPECT_TRUE(
+      WaitForRenderFrameReady(contents->GetInterstitialPage()->GetMainFrame()));
+  // The interstitial should display a link to www.example.com
+  EXPECT_TRUE(chrome_browser_interstitials::IsInterstitialDisplayingText(
+      contents->GetInterstitialPage(), "www.example.com"));
+  // Verify that the link has the text "suggest-link", the id of the
+  // link element displayed.
+  EXPECT_TRUE(chrome_browser_interstitials::IsInterstitialDisplayingText(
+      contents->GetInterstitialPage(), "suggest-link"));
+}
+
+// This observer waits for the SSLErrorHandler to start an interstitial timer
+// for the given web contents.
+class SSLInterstitialTimerObserver {
+ public:
+  explicit SSLInterstitialTimerObserver(content::WebContents* web_contents);
+  ~SSLInterstitialTimerObserver();
+
+  // Waits until the interstitial delay timer in SSLErrorHandler is started.
+  void WaitForTimerStarted();
+
+ private:
+  void OnTimerStarted(content::WebContents* web_contents);
+
+  const content::WebContents* web_contents_;
+  SSLErrorHandler::TimerStartedCallback callback_;
+
+  scoped_refptr<content::MessageLoopRunner> message_loop_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(SSLInterstitialTimerObserver);
+};
+
+SSLInterstitialTimerObserver::SSLInterstitialTimerObserver(
+    content::WebContents* web_contents)
+    : web_contents_(web_contents),
+      message_loop_runner_(new content::MessageLoopRunner) {
+  callback_ = base::Bind(&SSLInterstitialTimerObserver::OnTimerStarted,
+                         base::Unretained(this));
+  SSLErrorHandler::SetInterstitialTimerStartedCallbackForTest(&callback_);
+}
+
+SSLInterstitialTimerObserver::~SSLInterstitialTimerObserver() {
+  SSLErrorHandler::SetInterstitialTimerStartedCallbackForTest(nullptr);
+}
+
+void SSLInterstitialTimerObserver::WaitForTimerStarted() {
+  message_loop_runner_->Run();
+}
+
+void SSLInterstitialTimerObserver::OnTimerStarted(
+    content::WebContents* web_contents) {
+  if (web_contents_ == web_contents && message_loop_runner_.get())
+    message_loop_runner_->Quit();
+}
+
+// Tests this scenario:
+// - |CommonNameMismatchHandler| does not give a callback as it's set into the
+//   state |IGNORE_REQUESTS_FOR_TESTING|. So no suggested URL check result can
+//   arrive.
+// - A cert error triggers an interstitial timer with a very long timeout.
+// - No suggested URL check results arrive, causing the tab to appear as loading
+//   indefinitely (also because the timer has a long timeout).
+// - Stopping the page load shouldn't result in any interstitials.
+IN_PROC_BROWSER_TEST_F(SSLUITest, InterstitialStopNavigationWhileLoading) {
+  // Starts a server with a valid certificate for "example.com".
+  ASSERT_TRUE(https_server_example_domain_.Start());
+
+  host_resolver()->AddRule("example.com", "127.0.0.1");
+  host_resolver()->AddRule("www.example.com", "127.0.0.1");
+
+  GURL https_server_url =
+      https_server_example_domain_.GetURL("files/ssl/google.html?a=b");
+  GURL::Replacements replacements;
+  replacements.SetHostStr("www.example.com");
+  GURL https_server_mismatched_url =
+      https_server_url.ReplaceComponents(replacements);
+
+  WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();
+  CommonNameMismatchHandler::set_state_for_testing(
+      CommonNameMismatchHandler::IGNORE_REQUESTS_FOR_TESTING);
+  SSLInterstitialTimerObserver interstitial_timer_observer(contents);
+
+  ui_test_utils::NavigateToURLWithDisposition(
+      browser(), https_server_mismatched_url, CURRENT_TAB,
+      ui_test_utils::BROWSER_TEST_NONE);
+  interstitial_timer_observer.WaitForTimerStarted();
+
+  EXPECT_TRUE(contents->IsLoading());
+  content::WindowedNotificationObserver observer(
+      content::NOTIFICATION_LOAD_STOP,
+      content::NotificationService::AllSources());
+  contents->Stop();
+  observer.Wait();
+
+  SSLErrorHandler* ssl_error_handler =
+      SSLErrorHandler::FromWebContents(contents);
+  // Make sure that the |SSLErrorHandler| is deleted.
+  EXPECT_FALSE(ssl_error_handler);
+  EXPECT_FALSE(contents->ShowingInterstitialPage());
+  EXPECT_FALSE(contents->IsLoading());
+}
+
+// Same as above, but instead of stopping, the loading page is reloaded. The end
+// result is the same. (i.e. page load stops, no interstitials shown)
+IN_PROC_BROWSER_TEST_F(SSLUITest, InterstitialReloadNavigationWhileLoading) {
+  // Starts a server with a valid certificate for "example.com".
+  ASSERT_TRUE(https_server_example_domain_.Start());
+
+  host_resolver()->AddRule("example.com", "127.0.0.1");
+  host_resolver()->AddRule("www.example.com", "127.0.0.1");
+
+  GURL https_server_url =
+      https_server_example_domain_.GetURL("files/ssl/google.html?a=b");
+  GURL::Replacements replacements;
+  replacements.SetHostStr("www.example.com");
+  GURL https_server_mismatched_url =
+      https_server_url.ReplaceComponents(replacements);
+
+  WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();
+  CommonNameMismatchHandler::set_state_for_testing(
+      CommonNameMismatchHandler::IGNORE_REQUESTS_FOR_TESTING);
+  SSLInterstitialTimerObserver interstitial_timer_observer(contents);
+
+  ui_test_utils::NavigateToURLWithDisposition(
+      browser(), https_server_mismatched_url, CURRENT_TAB,
+      ui_test_utils::BROWSER_TEST_NONE);
+  interstitial_timer_observer.WaitForTimerStarted();
+
+  EXPECT_TRUE(contents->IsLoading());
+  content::TestNavigationObserver observer(contents, 1);
+  chrome::Reload(browser(), CURRENT_TAB);
+  observer.Wait();
+
+  SSLErrorHandler* ssl_error_handler =
+      SSLErrorHandler::FromWebContents(contents);
+  // Make sure that the |SSLErrorHandler| is deleted.
+  EXPECT_FALSE(ssl_error_handler);
+  EXPECT_FALSE(contents->ShowingInterstitialPage());
+  EXPECT_FALSE(contents->IsLoading());
+}
+
+// Same as above, but instead of reloading, the page is navigated away. The
+// new page should load, and no interstitials should be shown.
+IN_PROC_BROWSER_TEST_F(SSLUITest, InterstitialNavigateAwayWhileLoading) {
+  // Starts a server with a valid certificate for "example.com".
+  ASSERT_TRUE(https_server_example_domain_.Start());
+
+  host_resolver()->AddRule("example.com", "127.0.0.1");
+  host_resolver()->AddRule("www.example.com", "127.0.0.1");
+
+  GURL https_server_url =
+      https_server_example_domain_.GetURL("files/ssl/google.html?a=b");
+  GURL::Replacements replacements;
+  replacements.SetHostStr("www.example.com");
+  GURL https_server_mismatched_url =
+      https_server_url.ReplaceComponents(replacements);
+
+  WebContents* contents = browser()->tab_strip_model()->GetActiveWebContents();
+  CommonNameMismatchHandler::set_state_for_testing(
+      CommonNameMismatchHandler::IGNORE_REQUESTS_FOR_TESTING);
+  SSLInterstitialTimerObserver interstitial_timer_observer(contents);
+
+  ui_test_utils::NavigateToURLWithDisposition(
+      browser(), https_server_mismatched_url, CURRENT_TAB,
+      ui_test_utils::BROWSER_TEST_NONE);
+  interstitial_timer_observer.WaitForTimerStarted();
+
+  EXPECT_TRUE(contents->IsLoading());
+  content::TestNavigationObserver observer(contents, 1);
+  browser()->OpenURL(content::OpenURLParams(GURL("https://google.com"),
+                                            content::Referrer(), CURRENT_TAB,
+                                            ui::PAGE_TRANSITION_TYPED, false));
+  observer.Wait();
+
+  SSLErrorHandler* ssl_error_handler =
+      SSLErrorHandler::FromWebContents(contents);
+  // Make sure that the |SSLErrorHandler| is deleted.
+  EXPECT_FALSE(ssl_error_handler);
+  EXPECT_FALSE(contents->ShowingInterstitialPage());
+  EXPECT_FALSE(contents->IsLoading());
+}
+
 class SSLBlockingPageIDNTest : public SecurityInterstitialIDNTest {
  protected:
   // SecurityInterstitialIDNTest implementation
@@ -2233,9 +2542,10 @@ class SSLBlockingPageIDNTest : public SecurityInterstitialIDNTest {
     net::SSLInfo ssl_info;
     ssl_info.cert = new net::X509Certificate(
         request_url.host(), "CA", base::Time::Max(), base::Time::Max());
-    return new SSLBlockingPage(
-        contents, net::ERR_CERT_CONTAINS_ERRORS, ssl_info, request_url, 0,
-        base::Time::NowFromSystemTime(), nullptr, base::Callback<void(bool)>());
+    return new SSLBlockingPage(contents, net::ERR_CERT_CONTAINS_ERRORS,
+                               ssl_info, request_url, 0,
+                               base::Time::NowFromSystemTime(), nullptr,
+                               base::Callback<void(bool)>(), GURL());
   }
 };